US20090056730A1 - Hair extension devices and methods - Google Patents
Hair extension devices and methods Download PDFInfo
- Publication number
- US20090056730A1 US20090056730A1 US11/845,559 US84555907A US2009056730A1 US 20090056730 A1 US20090056730 A1 US 20090056730A1 US 84555907 A US84555907 A US 84555907A US 2009056730 A1 US2009056730 A1 US 2009056730A1
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- United States
- Prior art keywords
- hair
- anchor
- elongate
- connector
- anchors
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/10—Hair or skin implants
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
- A41G5/00—Hair pieces, inserts, rolls, pads, or the like; Toupées
- A41G5/004—Hair pieces
- A41G5/0053—Fastening thereof
- A41G5/0073—Fastening thereof by mechanical fasteners, e.g. clasps, buttons, combs
Definitions
- This disclosure relates to hair-extension apparatus and techniques that provide the appearance of longer hair.
- Hair extensions allow hairstyles to be changed without the commitment needed to style one's natural hair.
- hair extensions can provide the appearance of longer hair without waiting for the natural hair to grow, which typically grows at rate of 15 millimeters per month.
- Various methods have been proposed to extend one's hair.
- One such method is disclosed in U.S. Pat. No. 3,295,534 to Dorkin, which discloses securing supplemental hairs to a base of natural (i.e., existing) hairs using adhesive.
- this hair extension technique has a tendency to pull out the natural hair over time.
- existing hair extension technology involves expensive, complicated, and time-consuming procedures that may need to be repeated to achieve a different look. Accordingly, while existing hair extension technology may allow for longer hair in the short term, the damage and expense pose significant drawbacks to repeatedly using hair extensions or changing the hair style immediately after the hair extension procedure.
- FIG. 1 is a lateral view of a head having a plurality of hair extension devices attached thereto.
- FIG. 2 is a sagittal view of the head of FIG. 1 illustrating a hair extension device according to one embodiment.
- FIG. 3 is a sagittal view of the head of FIG. 1 illustrating a hair extension device according to another embodiment.
- FIG. 4A is a sagittal view of the head of FIG. 1 illustrating a hair extension device according to yet another embodiment.
- FIG. 4B is a anterior view of the hair extension device of FIG. 4A .
- FIG. 5 is a posterior view of the head of FIG. 1 illustrating a hair weft according to one embodiment.
- FIG. 6 is a posterior view of the head of FIG. 1 illustrating a hair mesh according to one embodiment.
- FIG. 7A is a cross-sectional view of an anchor and connector having a safety release according to one embodiment.
- FIG. 7B is a cross-sectional view of an anchor and connector having a safety release according to another embodiment.
- FIG. 7C is a cross-sectional view of an anchor and connector having a safety release according to yet another embodiment.
- FIG. 8A is a cross-sectional view of a connector with a plurality of hair extensions having a safety release according to one embodiment.
- FIG. 8B is a cross-sectional view of a connector with a plurality of hair extensions having a safety release according to another embodiment.
- FIG. 8C is a cross-sectional view of a connector with a plurality of hair extensions having a safety release according to yet another embodiment.
- FIG. 1 illustrates a plurality of hair extension devices 10 attached to a head 20 of a user.
- One or more elongate hair strands 30 can be attached to each of the hair extension devices 10 to, for example, extend the apparent length of the user's hair.
- Hair strands 30 need not be the same color, type, or length. Indeed, certain hair styles may require different hair strands 30 to be attached at various locations of the user's head.
- hair extension devices 10 and hair strands 30 are installed adjacent the user's natural (i.e., existing) hair 40 . This allows the natural hair 40 to obscure the hair extension devices 10 . Additionally, because hair strands 30 can pivot about their respective hair extension devices 10 , hair strands 30 can flow freely relative to natural hair 40 . This helps the hair strands 30 appear natural, even when viewed close up.
- a sagittal view of the head 20 of FIG. 1 illustrates a hair extension device 10 ′ implanted therein (in FIG. 2 reference numerals with the prime symbol, e.g., 10 ′, indicate elements similar to those of the same name in another embodiment, e.g., the hair extension devices 10 shown in FIG. 1 ).
- the hair extension device 10 ′ includes an anchor 50 placed into a bone mass, such as the wearer's cranium 22 .
- the anchor 50 may include a self-tapping portion 52 that drills away bone mass and allows a threaded portion 54 of the anchor 50 to advance into the bone mass as the anchor 50 is rotated.
- the anchor 50 has a length sufficient to allow the threaded portion 54 to engage the bone mass without fully extending through the cranium 22 —thereby leaving the cerebrum 24 untouched.
- a body portion 56 of the anchor 50 extends through subcutaneous tissue 26 and skin 28 of the head 20 so that a connector 60 can be secured to the anchor 50 .
- the anchor 50 may bond with the surrounding tissue—a process known as osseointegration. Accordingly, certain embodiments may omit the self-tapping portion 52 and/or the threaded portion 54 of the anchor 50 .
- the anchor may simply be friction fit into a cavity formed in the cranium 22 and become further secured in place over time (via osseointegration).
- the anchor 50 may be secured to the cranium 22 with an adhesive bone cement.
- the anchor 50 is made from a biocompatible material, such as titanium, ceramic, or polyurethane. However, other materials may be used based on the application.
- the connector 60 includes a clasp member 62 pivotally connected to an elongate base 64 .
- the elongate base 64 may be secured to the anchor 50 in several ways.
- the body portion 56 of the anchor 50 may include threads formed on an interior cavity that mesh with threads formed on a stud extending from the elongate base 64 (e.g., a universal mount).
- the elongate base 64 may snap into the body portion 56 , be welded thereto, or be integrally formed with the body portion 56 .
- the clasp member 62 is moveable between an open position for attaching the one or more hair strands 30 thereto and closed position for retaining the one or more hair strands 30 .
- a fastener may be provided to releasably join the elongate base 64 and the clasp member 62 .
- a catch member 66 may be provided on the elongate base for releasably engaging a free end 68 of the clasp member 62 .
- the clasp member 62 yields to excessive forces to ensure that the clasp 62 opens before the anchor 50 becomes dislodged from the cranium 22 .
- a spring element 69 may be provided at the pivot point between the clasp member 62 and the elongate base 64 .
- the spring element 69 may be biased to help the clasp member 62 close or it may be biased to help the clasp member 62 open upon the application of a predetermined force.
- the elongate base 64 , clasp member 62 , and spring element 69 may be molded from metal, such as steel, aluminum, and alloys, or may be formed from other materials, such as plastic. Additionally, these parts may be formed from the same or different material as the anchor 50 .
- the one or more hair strands 30 are secured directly to the connector 60 .
- the hair strands 30 may be folded upon themselves to define an overfolded end portion 32 (e.g., a loop of hair).
- the hair strands 30 may further be secured to themselves using, for example, adhesive, stitching, or a clamp.
- the clasp member 62 may run through overlapping portions 34 of the overfolded end portion 32 to thereby directly secure the hair strands 30 to the connector 60 .
- the one or more hair strands 30 may be secured to the connector 60 in other ways, such as via a friction fit or adhesive. Natural hair, synthetic hair, or a combination of both may be used for the one or more hair strands 30 .
- the hair strands 30 have the same or greater length relative to the user's natural hair 40 .
- FIG. 3 illustrates a hair extension device 10 ′′ according to another embodiment (in FIG. 3 reference numerals with the prime symbols, e.g., 10 ′′, indicate elements similar to those of the same name in another embodiment, e.g., the hair extension devices 10 shown in FIG. 1 ).
- the anchor 50 ′ of the hair extension device 10 ′′ includes a universal mount 70 .
- the universal mount 70 may be secured to the anchor 50 ′ in several ways.
- the body portion 56 ′ of the anchor 50 ′ may include threads formed on an interior cavity that mesh with threads formed on the universal mount 70 .
- the universal mount 70 may snap into the body portion 56 ′, be welded thereto, or be integrally formed with the body portion 56 ′.
- base 64 ′ is disk (or cup) shaped and has a recess 65 sized to receive the universal mount 70 .
- the universal mount 70 may also take different forms.
- the universal mount 70 may be a bolt, snap, magnet, or hook-and-loop fastener and may be integrally form with or attached to the anchor 50 ′ or connector 60 ′.
- FIGS. 4A and 4B illustrate a hair extension device 10 ′′′ according to another embodiment (in FIGS. 4A and 4B reference numerals with the prime symbols, e.g., 10 ′′′, indicate elements similar to those of the same name in another embodiment, e.g., the hair extension devices 10 shown in FIG. 1 ).
- the anchor 50 ′′ of the hair extension device 10 ′′′ includes an exposed end 80 having an elongate channel 82 formed therein.
- a pin 84 may be disposed within the channel 82 so that it is substantially perpendicular to the channel 82 .
- the wall portions 86 of the channel 82 and a portion of the pin 84 define a guide channel 88 for receiving a connector 90 .
- the connector 90 includes a hook-shaped portion 92 on one end for securing the connector 90 to the anchor 50 ′′ and one or more hair strands 30 ′′ secured to the other end.
- the hook-shaped portion 92 can be inserted into the guide channel 88 of the anchor 50 ′′ and held in place by the pin 84 .
- the connector 90 may include a safety release feature 94 that yields to excessive forces to ensure that the anchor 50 ′′ does not dislodge from the cranium 22 .
- the safety release feature 94 includes arms 96 joined at a pivot point 97 . Lugs 98 may jut from the arms 96 toward each other and extend through an opening formed in the connector 90 .
- the lugs 98 may be joined by a weak link, such as a reduced diameter portion. This allows the link to break, the arms 96 to pivot about point 97 , and the hair strands 30 ′′ to separate from the connector 90 upon the application of a predetermined tensile force.
- a tension device 99 may also be provided to bias the arms away or toward each other to aid in the release or retention of the hair strands 30 ′′.
- the connector 90 , safety release feature 94 , and/or tension device 99 may be molded from metal, such as steel, aluminum, and alloys, or may be formed from other materials, such as plastic. Additionally, these parts may be formed from the same or different material as each other or the anchor 50 ′′.
- a posterior view of the head 20 of FIG. 1 illustrates a hair weft 100 attached to anchors 110 (in FIG. 5 reference numerals with the prime symbols, e.g., 30 ′′′, indicate elements similar to those of the same name in another embodiment, e.g., the one or more hair strands 30 shown in FIG. 1 ).
- the hair weft 100 includes an elongate base element 102 having opposing fasteners 104 and 106 .
- the fasteners 104 and 106 may be hook-shaped (similar to the connector 90 in FIG. 4A ) and engage a pin (similar to pin 84 in FIG. 4A ) incorporated with anchors 110 .
- fasteners 104 and 106 may take other forms or shapes, such as those previously described with reference to FIGS. 2 , 3 , 4 A, and 4 B or those that will be described with reference to FIGS. 7A , 7 B, 7 C, 8 A, 8 B, and 8 C.
- a plurality of one or more hair strands 30 ′′′ may be secured to the elongate base element 102 via loops 108 .
- the hair strands 30 ′′′ may be folded into a loop of hair through which one of the loops 108 may run.
- the one or more hair strands 30 ′′′ may be secured to the elongate base element 102 in other ways, such as those already described with reference to FIGS. 2 , 3 , 4 A, and 4 B or those that will be described with reference to FIGS. 7A , 7 B, 7 C, 8 A, 8 B, and 8 C.
- a posterior view of the head 20 of FIG. 1 illustrates a mesh 120 attached to anchors 110 ′ (in FIG. 6 reference numerals with the prime symbols, e.g., 30 ′′′′, indicate elements similar to those of the same name in another embodiment, e.g., the one or more hair strands 30 shown in FIG. 1 ).
- the mesh 120 includes a plurality of openings 122 through which the natural hair 40 of the user passes. Additionally, the openings 122 allow the mesh to be secured to the anchors 110 ′. For example, each corner of the mesh 120 may be stretched so that one of the anchors 110 ′ passes through one of the openings 122 .
- the mesh 120 could be secured in other ways, including those already described with reference to FIGS. 2 , 3 , 4 A, 4 B, and 5 .
- a bolt (not shown) may be threaded into the anchors 110 ′, sandwiching the mesh 120 between a head of the bolt and the anchor 110 ′.
- a plurality of one or more hair strands 30 ′′′′ may be secured to the mesh 120 .
- the hair strands 30 ′′′′ may be folded to form a loop of hair through which one of the threads that make up the mesh 120 may run.
- the one or more hair strands 30 ′′′′ may be secured to the mesh 120 in other ways, such as those already described with reference to FIGS. 2 , 3 , 4 A, 4 B, and 5 or those that will be described with reference to FIGS. 7A , 7 B, 7 C, 8 A, 8 B, and 8 C.
- the threads that make up mesh 120 may be fabric, plastic, or metal.
- other materials may be used, such as a stretchable material.
- FIGS. 7A , 7 B, and 7 C various safety release features are shown between anchors 50 ′′′ and connectors 60 ′′ (in FIGS. 7A , 7 B, and 7 C reference numerals with the prime symbols, e.g., 50 ′′′, indicate elements similar to those of the same name in another embodiment, e.g., the anchor 50 shown in FIG. 2 ).
- the body portion 56 ′′′ of the anchor 50 ′′′ includes a recess 130 for receiving a pin 140 of the connector 60 ′′. If a sufficient tensile force is applied to the one or more hair strands 30 ′′′′′, the pin 140 withdraws from the recess 130 so that the connector 60 ′ separates from the anchor 50 ′′′.
- a spring element 150 may be provided and biased to help push the pin 140 into the recess 130 or it may be biased to help remove the pin 140 from the recess 130 .
- the pin 140 and/or spring element 150 may be molded from metal, such as steel, aluminum, and alloys, or may be formed from other materials, such as plastic. Additionally, these parts may be formed from the same or different material as the anchor 50 ′′′.
- the body portion 56 ′′′ of the anchor 50 ′′′ includes a catch member 160 .
- the connector 60 ′′ may include cantilevered arms 170 having a ledge that engages the catch member 160 . If a sufficient tensile force is applied to the one or more hair strands 30 ′′′′′, the cantilevered arms 170 move toward each other so that the connector 60 ′′ separates from the anchor 50 ′′′.
- the cantilevered arms 170 and/or catch member 160 may be molded from metal, such as steel, aluminum, and alloys, or may be formed from other materials, such as plastic. Additionally, these parts may be formed from the same or different material as the anchor 50 ′′′.
- the body portion 56 ′′′ of the anchor 50 ′′′ and the connector 60 ′′ include a plurality of barbs 180 and 190 .
- barbs 190 engage barbs 180 and hold the connector 60 ′′ in place. If a sufficient tensile force is applied to the one or more hair strands 30 ′′′′′, the barbs 180 and 190 disengage allowing the connector 60 ′′ to separate from the anchor 50 ′′′.
- the barbs 180 and 190 may be molded from metal, such as steel, aluminum, and alloys, or may be formed from other materials, such as plastic. Additionally, these parts may be formed from the same or different material as the anchor 50 ′′′.
- FIGS. 8A , 8 B, and 8 C various safety release features are shown between connectors 200 , 210 , and 220 and the one or more hair strands 30 ′′′′′′ (in FIGS. 8A , 8 B, and 8 C reference numerals with the prime symbols, e.g., 30 ′′′′′′, indicate elements similar to those of the same name in another embodiment, e.g., the one or more hair strands 30 shown in FIG. 1 ). As shown in FIG. 8A , the one or more hair strands 30 ′′′′′′ are inserted into a recess 202 formed in the connector 200 .
- the size (e.g., diameter) of the recess 202 is selected to be smaller than the size of the one or more hair strands 30 ′′′′′′ such that friction holds the extensions in place.
- the one or more hair strands 30 ′′′′′′ are pulled from the connector 202 if a sufficient tensile force is applied to them.
- a recess 212 may be formed in the connector 210 .
- a shear pin 214 may be inserted into the side of the connector 210 (proximate the recess 212 ) and through a loop 216 formed at the end of the one or more hair strands 30 ′′′′′′.
- the size (e.g., diameter) of the shear pin 214 may be selected to release the one or more hair strands 30 ′′′′′′ upon the application of a sufficient tensile force.
- the connector 210 and/or shear pin 214 may be molded from metal, such as steel, aluminum, and alloys, or may be formed from other materials, such as plastic.
- the connector 220 may have a narrowed section 222 . If a sufficient tensile force is applied to the one or more hair strands 30 ′′′′′′, the narrowed section 222 of the connector 220 breaks—allowing the one or more hair strands 30 ′′′′′′ to pull free from the connector 220 .
- the connector 220 may be molded from metal, such as steel, aluminum, and alloys, or may be formed from other materials, such as plastic.
- the anchors 50 of the hair extension devices 10 described herein can be installed in several ways. On such method involves determining where the hair extension devices 10 should be installed. While the hair extension devices 10 can be installed anywhere on the head 20 of the user, according to one embodiment, most of the hair extension devices 10 are installed proximate the vertex and occiput. After the installation locations are selected, the natural hair 40 surrounding the installation site is shaven and the area is sterilized and locally anesthetized. An incision is made through the skin 28 and subcutaneous tissue 26 and the cranium 22 is exposed. If the anchor 50 is self-tapping, it is slowly inserted into the cranium 22 .
- an initial pilot hole is drilled into the cranium 22 and taps are used to carve threads into the cranium 22 (if needed).
- the anchor 50 is inserted into the cranium 22 , the skin is closed in layers and possibly stitched. Before attaching anything to the anchor 50 , the area is allowed to heal (and to allow for osseointegration). After the local inflammation subsides, the distal end of the anchor 50 will extend slightly above the surface of the skin 28 .
- the one or more hair strands 30 can be secured to one of the connectors in several ways, including those described herein.
- the connectors can be secured to the anchors 50 in many ways, including those described herein.
- the user may part natural hair 40 along a parting line 230 corresponding generally to the location of anchors 110 .
- An upper portion 42 of natural hair 40 may be positioned above parting line 230 and fastened in place with a hair clip 240 or the like.
- the anchors 110 With the anchors 110 exposed, the user can attach hair weft 100 thereto.
- fasteners 104 and 106 are hook-shaped and anchors 110 are similar to anchors 50 ′′ (see FIGS.
- the user can simply slide the hook-shaped fasteners 104 and 106 into guide channel 88 .
- the hair clip 240 can be removed so that the upper portion 42 of natural hair 40 falls back into place—hiding the base element 102 , fasteners 104 and 106 , and anchors 110 . Because the plurality of one or more hair strands 30 ′′′ are secured independently to the elongate base element 102 , the hair strands 30 ′′′ are allowed to flow freely relative to the natural hair 40 . This helps the hair strands 30 ′′′ appear natural, even when viewed close up.
- the user may part natural hair 40 along a parting line 230 ′ corresponding generally to the location of anchors 110 ′.
- An upper portion 42 ′ of natural hair 40 may be positioned above parting line 230 ′ and fastened in place with a hair clip 240 ′ or the like.
- Some of the natural hair 40 above the parting line 230 ′ may be pulled free from the hair clip 240 ′ and passed through the openings 122 near the top portion of the mesh 120 .
- some of the natural hair 40 below the parting line 230 ′ may be passed through the openings 122 near the bottom portion of the mesh 120 .
- the user can then attach mesh 120 to the anchors 110 ′.
- each of the anchors 110 ′ may be passed through an opening 122 in a respective corner of the mesh 120 .
- the hair clip 240 ′ can be removed so that the upper portion 42 ′ of natural hair 40 falls back into place—hiding the mesh 120 and anchors 110 ′. Since the plurality of one or more hair strands 30 ′′′′ are secured independently to the mesh 120 , the hair strands 30 ′′′′ are allowed to flow freely relative to the natural hair 40 . This helps the hair strands 30 ′′′′ appear natural, even when viewed close up.
Abstract
A hair extension device comprises a biocompatible anchor adapted to be secured directly to a user's cranium adjacent natural hair, a connector adapted to be secured directly to the anchor, and at least one elongate strand of hair secured directly to the connector so that the at least one strand of hair flows freely relative to the natural hair. The connector or the at least one elongate strand of hair may be adapted to yield to excessive forces so that the anchor is not dislodge from the cranium should the at least one elongate strand of hair be pulled with sufficient force.
Description
- This disclosure relates to hair-extension apparatus and techniques that provide the appearance of longer hair.
- Hair extensions allow hairstyles to be changed without the commitment needed to style one's natural hair. For example, hair extensions can provide the appearance of longer hair without waiting for the natural hair to grow, which typically grows at rate of 15 millimeters per month. Various methods have been proposed to extend one's hair. One such method is disclosed in U.S. Pat. No. 3,295,534 to Dorkin, which discloses securing supplemental hairs to a base of natural (i.e., existing) hairs using adhesive. Unfortunately, this hair extension technique has a tendency to pull out the natural hair over time. Additionally, existing hair extension technology involves expensive, complicated, and time-consuming procedures that may need to be repeated to achieve a different look. Accordingly, while existing hair extension technology may allow for longer hair in the short term, the damage and expense pose significant drawbacks to repeatedly using hair extensions or changing the hair style immediately after the hair extension procedure.
- Separate from the field of hair extensions, various devices and methods have been proposed to secure a hair prosthesis to the wearer's cranium. One such device is described in U.S. Pat. No. 3,862,453 to Widdifield, which discloses an implant which is placed on the cranium and protrudes through the top of the scalp. A hair piece is then connected to the implant via a screw, VELCRO®, or a magnetic disk. However, hair pieces are designed to cover bald spots and obscure any remaining hair lying beneath. Additionally, such hair pieces have hair connected to a substrate that covers most of the scalp and the substrate is secured to the implant. This forces the user into wearing one hair piece and prevents different extensions from being applied to different parts of the head. Further, such hair pieces do not extend the length of existing natural hair.
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FIG. 1 is a lateral view of a head having a plurality of hair extension devices attached thereto. -
FIG. 2 is a sagittal view of the head ofFIG. 1 illustrating a hair extension device according to one embodiment. -
FIG. 3 is a sagittal view of the head ofFIG. 1 illustrating a hair extension device according to another embodiment. -
FIG. 4A is a sagittal view of the head ofFIG. 1 illustrating a hair extension device according to yet another embodiment. -
FIG. 4B is a anterior view of the hair extension device ofFIG. 4A . -
FIG. 5 is a posterior view of the head ofFIG. 1 illustrating a hair weft according to one embodiment. -
FIG. 6 is a posterior view of the head ofFIG. 1 illustrating a hair mesh according to one embodiment. -
FIG. 7A is a cross-sectional view of an anchor and connector having a safety release according to one embodiment. -
FIG. 7B is a cross-sectional view of an anchor and connector having a safety release according to another embodiment. -
FIG. 7C is a cross-sectional view of an anchor and connector having a safety release according to yet another embodiment. -
FIG. 8A is a cross-sectional view of a connector with a plurality of hair extensions having a safety release according to one embodiment. -
FIG. 8B is a cross-sectional view of a connector with a plurality of hair extensions having a safety release according to another embodiment. -
FIG. 8C is a cross-sectional view of a connector with a plurality of hair extensions having a safety release according to yet another embodiment. - With reference to the above-listed drawings, this section describes particular embodiments and their detailed construction and operation. The embodiments described herein are set forth by way of illustration only. Those skilled in the art will recognize in light of the teachings herein that variations can be made to the embodiments described herein and that other embodiments are possible. No attempt is made to exhaustively catalog all possible embodiments and all possible variations of the described embodiments.
- For the sake of clarity and conciseness, certain aspects of components or steps of certain embodiments are presented without undue detail where such detail would be apparent to those skilled in the art in light of the teachings herein and/or where such detail would obfuscate an understanding of more pertinent aspects of the embodiments.
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FIG. 1 illustrates a plurality ofhair extension devices 10 attached to ahead 20 of a user. One or moreelongate hair strands 30 can be attached to each of thehair extension devices 10 to, for example, extend the apparent length of the user's hair.Hair strands 30 need not be the same color, type, or length. Indeed, certain hair styles may requiredifferent hair strands 30 to be attached at various locations of the user's head. According to one embodiment,hair extension devices 10 andhair strands 30 are installed adjacent the user's natural (i.e., existing)hair 40. This allows thenatural hair 40 to obscure thehair extension devices 10. Additionally, becausehair strands 30 can pivot about their respectivehair extension devices 10,hair strands 30 can flow freely relative tonatural hair 40. This helps thehair strands 30 appear natural, even when viewed close up. - Referring now to
FIG. 2 , a sagittal view of thehead 20 ofFIG. 1 illustrates ahair extension device 10′ implanted therein (inFIG. 2 reference numerals with the prime symbol, e.g., 10′, indicate elements similar to those of the same name in another embodiment, e.g., thehair extension devices 10 shown inFIG. 1 ). According to one embodiment, thehair extension device 10′ includes ananchor 50 placed into a bone mass, such as the wearer'scranium 22. Theanchor 50 may include a self-tappingportion 52 that drills away bone mass and allows a threadedportion 54 of theanchor 50 to advance into the bone mass as theanchor 50 is rotated. Theanchor 50 has a length sufficient to allow the threadedportion 54 to engage the bone mass without fully extending through thecranium 22—thereby leaving thecerebrum 24 untouched. In one embodiment, abody portion 56 of theanchor 50 extends throughsubcutaneous tissue 26 andskin 28 of thehead 20 so that aconnector 60 can be secured to theanchor 50. - Over time, the
anchor 50 may bond with the surrounding tissue—a process known as osseointegration. Accordingly, certain embodiments may omit the self-tappingportion 52 and/or the threadedportion 54 of theanchor 50. For example, the anchor may simply be friction fit into a cavity formed in thecranium 22 and become further secured in place over time (via osseointegration). By way of another example, theanchor 50 may be secured to thecranium 22 with an adhesive bone cement. In one embodiment, theanchor 50 is made from a biocompatible material, such as titanium, ceramic, or polyurethane. However, other materials may be used based on the application. - The
connector 60, according to one embodiment, includes aclasp member 62 pivotally connected to anelongate base 64. Theelongate base 64 may be secured to theanchor 50 in several ways. For example, thebody portion 56 of theanchor 50 may include threads formed on an interior cavity that mesh with threads formed on a stud extending from the elongate base 64 (e.g., a universal mount). In addition, theelongate base 64 may snap into thebody portion 56, be welded thereto, or be integrally formed with thebody portion 56. Theclasp member 62 is moveable between an open position for attaching the one ormore hair strands 30 thereto and closed position for retaining the one ormore hair strands 30. A fastener may be provided to releasably join theelongate base 64 and theclasp member 62. For example, acatch member 66 may be provided on the elongate base for releasably engaging afree end 68 of theclasp member 62. According to one embodiment, theclasp member 62 yields to excessive forces to ensure that theclasp 62 opens before theanchor 50 becomes dislodged from thecranium 22. - A
spring element 69 may be provided at the pivot point between theclasp member 62 and theelongate base 64. Thespring element 69 may be biased to help theclasp member 62 close or it may be biased to help theclasp member 62 open upon the application of a predetermined force. Theelongate base 64,clasp member 62, andspring element 69 may be molded from metal, such as steel, aluminum, and alloys, or may be formed from other materials, such as plastic. Additionally, these parts may be formed from the same or different material as theanchor 50. - In one embodiment, the one or
more hair strands 30 are secured directly to theconnector 60. For example, thehair strands 30 may be folded upon themselves to define an overfolded end portion 32 (e.g., a loop of hair). Thehair strands 30 may further be secured to themselves using, for example, adhesive, stitching, or a clamp. Theclasp member 62 may run through overlappingportions 34 of theoverfolded end portion 32 to thereby directly secure thehair strands 30 to theconnector 60. Additionally, the one ormore hair strands 30 may be secured to theconnector 60 in other ways, such as via a friction fit or adhesive. Natural hair, synthetic hair, or a combination of both may be used for the one ormore hair strands 30. According to one embodiment, thehair strands 30 have the same or greater length relative to the user'snatural hair 40. -
FIG. 3 illustrates ahair extension device 10″ according to another embodiment (inFIG. 3 reference numerals with the prime symbols, e.g., 10″, indicate elements similar to those of the same name in another embodiment, e.g., thehair extension devices 10 shown inFIG. 1 ). Theanchor 50′ of thehair extension device 10″ includes auniversal mount 70. Theuniversal mount 70 may be secured to theanchor 50′ in several ways. For example, thebody portion 56′ of theanchor 50′ may include threads formed on an interior cavity that mesh with threads formed on theuniversal mount 70. In addition, theuniversal mount 70 may snap into thebody portion 56′, be welded thereto, or be integrally formed with thebody portion 56′. According to one embodiment,base 64′ is disk (or cup) shaped and has arecess 65 sized to receive theuniversal mount 70. This allows theconnector 60′ to be snapped onto theanchor 50′ and allows different types ofconnectors 60′ andhair strands 30′ to be used with theanchor 50′. Theuniversal mount 70 may also take different forms. For example, theuniversal mount 70 may be a bolt, snap, magnet, or hook-and-loop fastener and may be integrally form with or attached to theanchor 50′ orconnector 60′. -
FIGS. 4A and 4B illustrate ahair extension device 10′″ according to another embodiment (inFIGS. 4A and 4B reference numerals with the prime symbols, e.g., 10′″, indicate elements similar to those of the same name in another embodiment, e.g., thehair extension devices 10 shown inFIG. 1 ). Theanchor 50″ of thehair extension device 10′″ includes an exposedend 80 having anelongate channel 82 formed therein. Apin 84 may be disposed within thechannel 82 so that it is substantially perpendicular to thechannel 82. Thewall portions 86 of thechannel 82 and a portion of thepin 84 define a guide channel 88 for receiving aconnector 90. - According to one embodiment, the
connector 90 includes a hook-shaped portion 92 on one end for securing theconnector 90 to theanchor 50″ and one ormore hair strands 30″ secured to the other end. By way of example, the hook-shaped portion 92 can be inserted into the guide channel 88 of theanchor 50″ and held in place by thepin 84. Theconnector 90 may include asafety release feature 94 that yields to excessive forces to ensure that theanchor 50″ does not dislodge from thecranium 22. According to one embodiment, thesafety release feature 94 includesarms 96 joined at apivot point 97.Lugs 98 may jut from thearms 96 toward each other and extend through an opening formed in theconnector 90. Thelugs 98 may be joined by a weak link, such as a reduced diameter portion. This allows the link to break, thearms 96 to pivot aboutpoint 97, and thehair strands 30″ to separate from theconnector 90 upon the application of a predetermined tensile force. Atension device 99 may also be provided to bias the arms away or toward each other to aid in the release or retention of thehair strands 30″. - The
connector 90,safety release feature 94, and/ortension device 99 may be molded from metal, such as steel, aluminum, and alloys, or may be formed from other materials, such as plastic. Additionally, these parts may be formed from the same or different material as each other or theanchor 50″. - Referring now to
FIG. 5 , a posterior view of thehead 20 ofFIG. 1 illustrates ahair weft 100 attached to anchors 110 (inFIG. 5 reference numerals with the prime symbols, e.g., 30′″, indicate elements similar to those of the same name in another embodiment, e.g., the one ormore hair strands 30 shown inFIG. 1 ). According to one embodiment, thehair weft 100 includes anelongate base element 102 having opposingfasteners fasteners connector 90 inFIG. 4A ) and engage a pin (similar to pin 84 inFIG. 4A ) incorporated withanchors 110. In addition, thefasteners FIGS. 2 , 3, 4A, and 4B or those that will be described with reference toFIGS. 7A , 7B, 7C, 8A, 8B, and 8C. - A plurality of one or
more hair strands 30′″ may be secured to theelongate base element 102 vialoops 108. For example, as previously described, thehair strands 30′″ may be folded into a loop of hair through which one of theloops 108 may run. However, the one ormore hair strands 30′″ may be secured to theelongate base element 102 in other ways, such as those already described with reference toFIGS. 2 , 3, 4A, and 4B or those that will be described with reference toFIGS. 7A , 7B, 7C, 8A, 8B, and 8C. - Referring now to
FIG. 6 , a posterior view of thehead 20 ofFIG. 1 illustrates amesh 120 attached toanchors 110′ (inFIG. 6 reference numerals with the prime symbols, e.g., 30″″, indicate elements similar to those of the same name in another embodiment, e.g., the one ormore hair strands 30 shown inFIG. 1 ). Themesh 120 includes a plurality ofopenings 122 through which thenatural hair 40 of the user passes. Additionally, theopenings 122 allow the mesh to be secured to theanchors 110′. For example, each corner of themesh 120 may be stretched so that one of theanchors 110′ passes through one of theopenings 122. Of course, themesh 120 could be secured in other ways, including those already described with reference toFIGS. 2 , 3, 4A, 4B, and 5. By way of example, a bolt (not shown) may be threaded into theanchors 110′, sandwiching themesh 120 between a head of the bolt and theanchor 110′. - A plurality of one or
more hair strands 30″″ may be secured to themesh 120. For example, as previously described, thehair strands 30″″ may be folded to form a loop of hair through which one of the threads that make up themesh 120 may run. However, the one ormore hair strands 30″″ may be secured to themesh 120 in other ways, such as those already described with reference toFIGS. 2 , 3, 4A, 4B, and 5 or those that will be described with reference toFIGS. 7A , 7B, 7C, 8A, 8B, and 8C. The threads that make upmesh 120 may be fabric, plastic, or metal. In addition, other materials may be used, such as a stretchable material. - Various safety release features that yield to excessive forces may be provided to ensure that the anchors do not dislodge from the
cranium 22. The safety release features, such as magnets and snaps, may be provided between the one or more hair strands and the connectors, the anchors and the connectors, or both. With reference toFIGS. 7A , 7B, and 7C, various safety release features are shown betweenanchors 50′″ andconnectors 60″ (inFIGS. 7A , 7B, and 7C reference numerals with the prime symbols, e.g., 50′″, indicate elements similar to those of the same name in another embodiment, e.g., theanchor 50 shown inFIG. 2 ). - As shown in
FIG. 7A , thebody portion 56′″ of theanchor 50′″ includes arecess 130 for receiving apin 140 of theconnector 60″. If a sufficient tensile force is applied to the one ormore hair strands 30′″″, thepin 140 withdraws from therecess 130 so that theconnector 60′ separates from theanchor 50′″. Aspring element 150 may be provided and biased to help push thepin 140 into therecess 130 or it may be biased to help remove thepin 140 from therecess 130. Thepin 140 and/orspring element 150 may be molded from metal, such as steel, aluminum, and alloys, or may be formed from other materials, such as plastic. Additionally, these parts may be formed from the same or different material as theanchor 50′″. - As shown in
FIG. 7B , thebody portion 56′″ of theanchor 50′″ includes acatch member 160. Theconnector 60″ may include cantileveredarms 170 having a ledge that engages thecatch member 160. If a sufficient tensile force is applied to the one ormore hair strands 30′″″, the cantileveredarms 170 move toward each other so that theconnector 60″ separates from theanchor 50′″. The cantileveredarms 170 and/or catchmember 160 may be molded from metal, such as steel, aluminum, and alloys, or may be formed from other materials, such as plastic. Additionally, these parts may be formed from the same or different material as theanchor 50′″. - As shown in
FIG. 7C , thebody portion 56′″ of theanchor 50′″ and theconnector 60″ include a plurality ofbarbs connector 60″ is inserted into theanchor 50′″,barbs 190 engagebarbs 180 and hold theconnector 60″ in place. If a sufficient tensile force is applied to the one ormore hair strands 30′″″, thebarbs connector 60″ to separate from theanchor 50′″. Thebarbs anchor 50′″. - With reference to
FIGS. 8A , 8B, and 8C, various safety release features are shown betweenconnectors more hair strands 30″″″ (inFIGS. 8A , 8B, and 8C reference numerals with the prime symbols, e.g., 30″″″, indicate elements similar to those of the same name in another embodiment, e.g., the one ormore hair strands 30 shown inFIG. 1 ). As shown inFIG. 8A , the one ormore hair strands 30″″″ are inserted into arecess 202 formed in theconnector 200. The size (e.g., diameter) of therecess 202 is selected to be smaller than the size of the one ormore hair strands 30″″″ such that friction holds the extensions in place. The one ormore hair strands 30″″″ are pulled from theconnector 202 if a sufficient tensile force is applied to them. - As shown in
FIG. 8B , arecess 212 may be formed in theconnector 210. Ashear pin 214 may be inserted into the side of the connector 210 (proximate the recess 212) and through aloop 216 formed at the end of the one ormore hair strands 30″″″. The size (e.g., diameter) of theshear pin 214 may be selected to release the one ormore hair strands 30″″″ upon the application of a sufficient tensile force. Theconnector 210 and/orshear pin 214 may be molded from metal, such as steel, aluminum, and alloys, or may be formed from other materials, such as plastic. - As shown in
FIG. 8C , theconnector 220 may have a narrowedsection 222. If a sufficient tensile force is applied to the one ormore hair strands 30″″″, the narrowedsection 222 of theconnector 220 breaks—allowing the one ormore hair strands 30″″″ to pull free from theconnector 220. Theconnector 220 may be molded from metal, such as steel, aluminum, and alloys, or may be formed from other materials, such as plastic. - The
anchors 50 of thehair extension devices 10 described herein can be installed in several ways. On such method involves determining where thehair extension devices 10 should be installed. While thehair extension devices 10 can be installed anywhere on thehead 20 of the user, according to one embodiment, most of thehair extension devices 10 are installed proximate the vertex and occiput. After the installation locations are selected, thenatural hair 40 surrounding the installation site is shaven and the area is sterilized and locally anesthetized. An incision is made through theskin 28 andsubcutaneous tissue 26 and thecranium 22 is exposed. If theanchor 50 is self-tapping, it is slowly inserted into thecranium 22. Otherwise, an initial pilot hole is drilled into thecranium 22 and taps are used to carve threads into the cranium 22 (if needed). After theanchor 50 is inserted into thecranium 22, the skin is closed in layers and possibly stitched. Before attaching anything to theanchor 50, the area is allowed to heal (and to allow for osseointegration). After the local inflammation subsides, the distal end of theanchor 50 will extend slightly above the surface of theskin 28. - The one or
more hair strands 30 can be secured to one of the connectors in several ways, including those described herein. Likewise, the connectors can be secured to theanchors 50 in many ways, including those described herein. For example, and with reference toFIG. 5 , the user may partnatural hair 40 along aparting line 230 corresponding generally to the location ofanchors 110. Anupper portion 42 ofnatural hair 40 may be positioned above partingline 230 and fastened in place with ahair clip 240 or the like. With theanchors 110 exposed, the user can attachhair weft 100 thereto. For example, iffasteners anchors 50″ (seeFIGS. 4A and 4B ), the user can simply slide the hook-shapedfasteners hair weft 100 is secured to theanchors 110, thehair clip 240 can be removed so that theupper portion 42 ofnatural hair 40 falls back into place—hiding thebase element 102,fasteners more hair strands 30′″ are secured independently to theelongate base element 102, thehair strands 30′″ are allowed to flow freely relative to thenatural hair 40. This helps thehair strands 30′″ appear natural, even when viewed close up. - By way of another example, and with reference to
FIG. 6 , the user may partnatural hair 40 along aparting line 230′ corresponding generally to the location ofanchors 110′. Anupper portion 42′ ofnatural hair 40 may be positioned above partingline 230′ and fastened in place with ahair clip 240′ or the like. Some of thenatural hair 40 above theparting line 230′ may be pulled free from thehair clip 240′ and passed through theopenings 122 near the top portion of themesh 120. Likewise, some of thenatural hair 40 below theparting line 230′ may be passed through theopenings 122 near the bottom portion of themesh 120. The user can then attachmesh 120 to theanchors 110′. For example, each of theanchors 110′ may be passed through anopening 122 in a respective corner of themesh 120. After themesh 120 is secured to theanchors 110′, thehair clip 240′ can be removed so that theupper portion 42′ ofnatural hair 40 falls back into place—hiding themesh 120 and anchors 110′. Since the plurality of one ormore hair strands 30″″ are secured independently to themesh 120, thehair strands 30″″ are allowed to flow freely relative to thenatural hair 40. This helps thehair strands 30″″ appear natural, even when viewed close up. - The terms and descriptions used herein are set forth by way of illustration only and are not meant as limitations. Those skilled in the art will recognize that many variations can be made to the details of the above-described embodiments without departing from the underlying principles of the invention. The scope of the invention should therefore be determined only by the following claims (and their equivalents) in which all terms are to be understood in their broadest reasonable sense unless otherwise indicated.
Claims (20)
1. A hair extension device, comprising:
a biocompatible anchor adapted to be secured directly to a user's cranium adjacent natural hair;
a connector adapted to be secured directly to the anchor; and
at least one elongate strand of hair secured directly to the connector so that the at least one strand of hair flows freely relative to the natural hair.
2. The device of claim 1 wherein the connector comprises:
an elongate base member adapted to be secured directly to the anchor; and
a clasp member having a proximate portion connected to a first end of the base member via a spring element, the proximate portion extending away from the base member and transitioning into a middle portion substantially parallel to the base member, the middle portion transitioning into a distal portion, the distal portion extending toward the base member and terminating at a free end, the free end adapted to releasably engage a second end of the base member such that the free end disengages the second end of the base member upon the application of a predetermined force.
3. The device of claim 2 wherein:
the at least one strand of hair is folded upon itself and secured to itself to define an overfolded end portion; and
the middle portion of the clasp member is interposed between overlapping portions of the overfolded end portion.
4. The device of claim 2 wherein:
the anchor includes a universal mount adapted to receive the connector; and
the base member is adapted to releasably engage the universal mount.
5. The device of claim 1 wherein:
the anchor includes an exposed end opposite a portion of the anchor adapted to be secured to the cranium, the exposed end having an elongate channel formed therein and a pin disposed within the elongate channel so that the pin is substantially perpendicular to the elongate channel and such that wall portions of the elongate channel and a portion of the pin define a guide channel adapted to receive a hook-shaped connector; and
the connector includes a hook-shaped portion adapted to be inserted into the guide channel.
6. The device of claim 1 wherein the connector comprises an elongate base element including a first fastener adapted to releasably engage the anchor and a second fastener opposite the first fastener, the second fastener adapted to releasably engage a second anchor, and further comprising a plurality of hair strands secured to the base element such that each of the hair strands flows freely relative to the natural hair.
7. The device of claim 1 wherein the at least one elongate strand of hair is adapted to releasably engage the connector so that a tensile force necessary to pull the at least one elongate strand of hair from the connector is less than a tensile force necessary to dislodge the anchor from the cranium.
8. The device of claim 1 wherein the connector is adapted to releasably engage the anchor so that a tensile force necessary to pull the connector from the anchor is less than a tensile force necessary to dislodge the anchor from the cranium.
9. The device of claim 1 wherein the at least one strand of hair includes natural hair.
10. A hair extension system, comprising:
a plurality of biocompatible anchors secured directly to a user's cranium adjacent natural hair; and
a plurality of connectors, each of the connectors secured directly to one of the anchors and each of the connectors including a plurality of elongate hair strands secured directly thereto so that the elongate hair strands flow freely relative to the natural hair.
11. The system of claim 10 wherein each of the connectors comprises:
an elongate base member secured directly to the anchor; and
a substantially C-shaped member including a pivotal end connected to a first end of the base member via a spring element and a clasp end opposite the pivotal end, the clasp end releasably engaging a second end of the base member such that the clasp end disengages the second end of the base member upon the application of a predetermined force.
12. The system of claim 11 wherein:
the plurality of elongate hair strands are folded and secured to themselves to define a loop of hair; and
the substantially C-shaped member runs through the loop of hair, thereby directly securing the plurality of elongate hair strands to the connector.
13. The system of claim 11 wherein:
each of the anchors includes a universal mount; and
each of the base members releasably engages one of the universal mounts.
14. The system of claim 10 wherein:
each of the anchors includes a receiver for receiving a hook-shaped connector; and
each of the connectors includes a hook-shaped portion inserted into one of the receivers.
15. The system of claim 10 wherein at least one of the connectors comprises an elongate base element including a first fastener releasably engaging one of the anchors and a second fastener opposite the first fastener, the second fastener releasably engaging one of the other anchors.
16. The system of claim 10 wherein the plurality of elongate hair strands are adapted to releasably engage the respective connector so that a tensile force necessary to pull the plurality of elongate hair strands from the respective connector is less than a tensile force necessary to dislodge the respective anchor from the cranium.
17. The system of claim 10 wherein each of the connectors is adapted to releasably engage the respective anchor so that a tensile force necessary to pull the respective connector from the respective anchor is less than a tensile force necessary to dislodge the respective anchor from the cranium.
18. The system of claim 10 wherein the plurality of elongate hair strands includes natural hair.
19. The system of claim 10 further comprising a mesh secured to at least two of the anchors, the mesh including a plurality of openings through which the natural hair passes and a plurality of elongate hair strands secured directly to the mesh so that the elongate hair strands attached to the mesh flow freely relative to the natural hair.
20. A hair extension device, comprising:
a plurality of biocompatible anchors adapted to be secured directly to a user's cranium adjacent natural hair;
a mesh adapted to be secured directly to each of the anchors, the mesh including a plurality of openings for receiving the natural hair; and
a plurality of elongate hair strands secured directly to the mesh so that the elongate hair strands flow freely relative to the natural hair.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/845,559 US20090056730A1 (en) | 2007-08-27 | 2007-08-27 | Hair extension devices and methods |
PCT/US2008/074349 WO2009029630A1 (en) | 2007-08-27 | 2008-08-26 | Hair extension devices and methods |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/845,559 US20090056730A1 (en) | 2007-08-27 | 2007-08-27 | Hair extension devices and methods |
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US20090056730A1 true US20090056730A1 (en) | 2009-03-05 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/845,559 Abandoned US20090056730A1 (en) | 2007-08-27 | 2007-08-27 | Hair extension devices and methods |
Country Status (2)
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US (1) | US20090056730A1 (en) |
WO (1) | WO2009029630A1 (en) |
Cited By (9)
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US7993400B1 (en) * | 2010-04-07 | 2011-08-09 | James Costabile | Device and method for attaching hair |
KR101147300B1 (en) | 2009-07-23 | 2012-05-18 | 장상건 | Bone anchored hairing implant |
US8753367B1 (en) * | 2012-12-21 | 2014-06-17 | James Costabile | Device and method for attaching hair |
US20150196848A1 (en) * | 2014-01-11 | 2015-07-16 | Vivian Miller | Doll having fastening surface head with interchangeable hair sections |
US9314702B2 (en) * | 2014-02-18 | 2016-04-19 | Margaret Mary Stafford | Apparatus and method pertaining to non-mesh, hair-securement elongated strips for use with a doll |
WO2017123454A1 (en) * | 2016-01-15 | 2017-07-20 | Infinity Grip Llc | Locking hair extension device |
US20180146732A1 (en) * | 2017-01-25 | 2018-05-31 | Tammy Gucciardi | Ventilated hair extension wefts |
US10149529B1 (en) * | 2016-06-27 | 2018-12-11 | LaToya Turner | Ultimate hair stand system and method |
US11606996B1 (en) | 2020-02-21 | 2023-03-21 | Sarah Clark | Magnetic hair extension accessory |
Families Citing this family (1)
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ITMO20090315A1 (en) * | 2009-12-24 | 2011-06-25 | X Med S R L | ¿FIXING DEVICE FOR TRICHOLOGICAL PROSTHESES¿. |
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Cited By (11)
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KR101147300B1 (en) | 2009-07-23 | 2012-05-18 | 장상건 | Bone anchored hairing implant |
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WO2017123454A1 (en) * | 2016-01-15 | 2017-07-20 | Infinity Grip Llc | Locking hair extension device |
US10149529B1 (en) * | 2016-06-27 | 2018-12-11 | LaToya Turner | Ultimate hair stand system and method |
US20180146732A1 (en) * | 2017-01-25 | 2018-05-31 | Tammy Gucciardi | Ventilated hair extension wefts |
US11439193B2 (en) * | 2017-01-25 | 2022-09-13 | Tammy Gucciardi | Ventilated hair extension wefts |
US11606996B1 (en) | 2020-02-21 | 2023-03-21 | Sarah Clark | Magnetic hair extension accessory |
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WO2009029630A1 (en) | 2009-03-05 |
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