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WO2007053849A2 - Methode et dispositif de fixation d'un ongle artificiel - Google Patents

Methode et dispositif de fixation d'un ongle artificiel Download PDF

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Publication number
WO2007053849A2
WO2007053849A2 PCT/US2006/060450 US2006060450W WO2007053849A2 WO 2007053849 A2 WO2007053849 A2 WO 2007053849A2 US 2006060450 W US2006060450 W US 2006060450W WO 2007053849 A2 WO2007053849 A2 WO 2007053849A2
Authority
WO
WIPO (PCT)
Prior art keywords
nail
scaffold
guide
pin
artificial
Prior art date
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.)
Ceased
Application number
PCT/US2006/060450
Other languages
English (en)
Other versions
WO2007053849A3 (fr
Inventor
Robert Brodkin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US11/163,839 external-priority patent/US7357816B2/en
Priority claimed from US11/163,873 external-priority patent/US7338523B2/en
Application filed by Individual filed Critical Individual
Publication of WO2007053849A2 publication Critical patent/WO2007053849A2/fr
Publication of WO2007053849A3 publication Critical patent/WO2007053849A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/01—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
    • A61F5/11—Devices for correcting deformities of the nails

Definitions

  • the present invention relates to a method and apparatus for the aesthetic correction of a deformity of the toe or finger caused by a surgical operation for the correction of severe ingrown toenails, a birth defect, or an injury.
  • matricectomy which involves the removal of part, or in serious cases the entirety of the nail root (also referred to as the "matrix”).
  • the nail root is what causes the nail to renew cells and grow each day. If the nail root is partially or completely removed, there is either limited growth or no nail at all. If the patient has undergone a partial matricectomy, up to two-thirds of the toenail could be missing; in a full matricectomy, there would be no nail at all.
  • the nail bed which is normally where the nail would attach to the skin, would evolve into skin similar to the rest of the body. In a society that places much emphasis on physical appearance, this deformity may cause embarrassment to the patient from a cosmetic standpoint, for the toe and nail of a person who has suffered this deformity would look markedly different than one would expect.
  • Prior art has " been designed to prevent, correct and/or treat ingrown toenails before or while they cause the surrounding skin to become inflamed and irritated, but these are generally preventative measures.
  • Cosmetic, artificial nails, which cover damaged nails or serve as a prosthesis over the nail bed, are temporary in nature.
  • TJS Patent 4,086,656 issued to Barbara Barmore in 1973 describes a device that is placed under the nail to force the ingrown nail to grow upwards and out.
  • the present invention provides a patient with the option of wearing a secure, discreet prosthetic nail over a damaged nail bed that can be removed by the patient at will, but cannot be detached or displaced on its own. It is an underlying motivation of the present invention to eliminate the embarrassment in patients caused by adhesive artificial nails falling off and exposing the deformity of the nail.
  • the present invention does not necessitate that the user even have a natural nail.
  • Prior art depends upon the natural nail to adhere to the artificial nail, but the present invention attaches the artificial nail to the human digit through the bone of the toe, in this way avoiding the use of glues, adhesives or cements.
  • the present invention does not attach the artificial nail directly to the natural nail, but rather supports the nail slightly above the nail bed, thereby facilitating cleansing and reducing the chances of debris accumulating between the nail bed and the artificial nail.
  • the average size of the distal phalanx of the great toe in an adult is 3 A" in width at the base, about Vs" in width at the narrow waist segment, and about 1" in length.
  • the distal phalanx is the normal point of attachment of both the nail bed and the nail plate in all fingers and toes.
  • An internal fixation device for the nail includes a pin, wire, screw, plate and other hardware meant to stay in place either short or long term. If a hole is incorrectly drilled for the placement of a bone screw, it would be nearly impossible to go " back and drill it correctly.
  • the relatively large size of the pin guide of the present invention allows for greater precision using the "line of sight” method for alignment of the " bone anchors and the scaffold.
  • the line of sight method allows for far greater precision than would be possible using just the end of the toe or finger as a point of reference.
  • the pin guide measures preferably 5" in length and 5" at its maximum width.
  • One of the purposes of the phi guide is to allow accurate placement of the three sMn incisions needed for the procedure.
  • the extra length of the pin guide relative to the small size of the distal phalanx provides greater accuracy of the longitudinal placement, while the extra width increases the accuracy of the transverse placement.
  • the tubules of the pin guide hold the pin in the correct alignment and angle, and will control or eliminate the tendency of the tip of the drill bit or wire to walk along the surface.
  • the rigidity of the pin guide will assure that the pins and screws are correctly angled, time after time. Other freehand surgical techniques or methods would not provide for this level of precision and accuracy.
  • Figure 1 is the present embodiment in its completed state.
  • the artificial nail is clasped onto the nail scaffold.
  • Figure 2 is tlie present embodiment complete with the nail scaffold, without the artificial nail clipped on.
  • Figures 3-7 disclose the methodology of implementing the apparatus.
  • Figure 3 is the distal phalanx with the initial guide wire centrally placed at the " base of the " bone, and the three points are where the incisions are made into the skin.
  • Figure 4 shows the pin guide, which is diamond shaped, and how it is placed over the guide wire to assure that the incisions for the bone anchors are evenly spaced and accurately placed.
  • Figure 5 portrays the distal phalanx once the " bone anchors have been set.
  • Figure 6 shows the bone anchors set in place.
  • Figure 7 shows the nail scaffold
  • the overall method and apparatus of the present invention attaches, by means of a threaded post 32, a "scaffold" 30 into the bone of the toe 10 (distal phalanx) with bone anchors 20, and the artificial nail 40 is attached to the scaffold 30 by a positive clip-type action.
  • a threaded post 32 a threaded post 32
  • a "scaffold" 30 into the bone of the toe 10 (distal phalanx) with bone anchors 20, and the artificial nail 40 is attached to the scaffold 30 by a positive clip-type action.
  • the first step of the method is to implement a guide wire 15 of .035" in diameter, which is centrally placed through the distal phalanx 10.
  • a pin-guide device £7 with four tubules £8 slightly larger than the guide wire 15, arranged in a diamond fashion with relatively long metal extensions £7, and the use of Velcro, allows the surgeon to make three tiny incisions 17 (to align the pins 18 and subsequently " bone screws 20 correctly with the center of the distal phalanx 10 as shown in Mgure 5).
  • the hack tubule £8 of the pin-guide £7 fits over the guide wire 15 that was previously inserted into the bone 10.
  • the pin guide £7 helps to mark the location of three tiny incisions of the dorsal aspect of the distal phalanx 10.
  • the pin guide £7 eliminates walking of the drill when the bone screws £0 are inserted; avoids damage to any skin still in place on the distal phalanx 10; and assures the drill holes/incisions 17 will be symmetrical, evenly placed and line up exactly with the nail scaffold 30. In this way, the doctor accurately inserts the bone screws £0, so the patient's artificial toenail is not off- center or crooked. The skin is then gently freed to allow placement of the bone screws.
  • the guide pins 18 must be checked for alignment and accuracy, and then the cannulated bone screws £0 are run directly over the guide wires 18, as shown in Fig. 6.
  • the heads of the bone screws £0 (sometimes referred to as “anchors") are preferably made of titanium and sit flush with the surface of the bone. There is a dissection of the medial and lateral skin flaps where previous tiny incisions 17 were made as marked using the pin guide 27.
  • the three anchors 20 are completely embedded within the hone 10.
  • Scar tissue surrounds the threaded posts, which run from inside the cannulated bone screws and up through the skin and limits the passage of bacteria.
  • the fact that the posts are threaded as opposed to smooth is meant to provide a greater surface area for scar tissue to adhere to.
  • Each " bone anchor SO is "cannulated,” meaning a hole is drilled directly in the center of the screw.
  • the screws are cannulated to a) allow for the screw to he guided to a very precise placement; b) serve as the placement of another .045" threaded post.
  • the cementing of the threaded posts is done with PDA-approved, bone cement. Therefore, there are three permanent supporting posts 32 for the nail scaffold 30, supported by the three respective posts 32.
  • the bone anchors 20 match up exactly with the posts 32 of the nail scaffold 30.
  • the scaffold 30 is made of stainless steel wire, with three short spacer tubules 32 that attach to the threaded posts 20 cemented inside the patient's toe.
  • the nail scaffold is not available on the current market but would be provided to the surgeon as a part of the nail bed implant system.
  • the scaffold 30 will tend to be rectangular in shape to give as much support as possible to the nail 40.
  • the plastic clips will be attached to a marked, factory-use scaffold. Then, the clips are glued to the underside of the nail in the correct position. When the adhesive sets, the nail can be undipped.
  • the spacers may be attached during manufacturing, but it is anticipated that the high temperature of S, 500 degrees Fahrenheit needed for welding would adversely affect the springiness of the metal.
  • a preferred method of attachment is via a two- part bonding system with a strength greater than 3,000 pounds per' square inch..
  • a lmm wire 35 is passed underneath, the scaffold 30 when it is put in place to act as a "spacer" in between the flesh of the nail " bed and the scaffold 30.
  • the spacer 35 avoids placing the artificial nail 40 in direct contact with the skin of the nail, which reduces the likelihood of infection, facilitates cleansing of that area, and enables free passage of air between the nail 40 and skin.
  • the spacer 35 allows the clasps of the clip-on artificial nail 40 to attach to the wires 36 on the nail scaffold 30. Hence it is crucial that the scaffold 30 is placed correctly on the bone 10. Once the cement has set the posts 3S in place, the spacers 35 are removed, allowing the scaffold 30 to be permanently- suspended above the skin.
  • the artificial nails 40 are then clipped onto the nail scaffold 30.
  • any plastic can be used to form the nails, and airbrushed color can be applied during manufacturing so that the scaffold does not show through the nail.
  • a laser device can be used during the manufacture of the nails to create micropores. These would be invisible to the casual observer, but would allow the passage of both air and water, allowing the skin underneath to maintain normal quality and allowing for faster drying of the skin after bathing.
  • the nails have a mechanism of attachment that can be varied per the user. They utilize a numerical scale from 1 to 5, with 1 being the easiest to remove and 5 providing the strongest, sturdiest fit and being the most difficult to remove.
  • the user can re-order the nails depending on the strength of the clip-on action that suits them hest.
  • the plastic clips are " bonded to the underside of the nails, and the nails are then clipped on to the nail scaffold. Therefore, the artificial nail is supported over the damaged/missing nail through the bone of the patient, obviating the need for a natural nail.
  • the underside of the artificial nails is not completely smooth, but has two ridges running from right to left. Each raised surface has a slit into which the wire of the scaffold would fit, and a perfectly round, molded insert to hold the wire 55 of the scaffold 30 firmly in place.

Landscapes

  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Prostheses (AREA)

Abstract

Cette invention concerne une méthode et un dispositif de fixation d'un ongle artificiel. Chez des patients dont un ongle du doigt ou de l'orteil présente une difformité due à des lésions antérieures, des malformations à la naissance, ou bien qui ont subi des matricectomies partielles ou complètes (avec ablation de la racine de l'ongle, qui est responsable de la croissance unguéale) dues à un onysis grave. Cette méthode consiste à fixer un ongle artificiel au dessus de la diformité au moyen de trois ancrages osseux, de trois pointes et d'une structure pour ongle. La méthode de l'invention pour la fixation d'un ongle artificiel peut être menée à bien sans adhésif, et n'exige pas du partiel qu'il possède un ongle naturel pour la fixation de l'ongle artificiel sur la diformité.
PCT/US2006/060450 2005-11-01 2006-11-01 Methode et dispositif de fixation d'un ongle artificiel Ceased WO2007053849A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/163,839 US7357816B2 (en) 2005-11-01 2005-11-01 Apparatus for attachment of artificial nail
US11/163,839 2005-11-01
US11/163,873 2005-11-02
US11/163,873 US7338523B2 (en) 2005-11-02 2005-11-02 Method for attachment of artificial nail

Publications (2)

Publication Number Publication Date
WO2007053849A2 true WO2007053849A2 (fr) 2007-05-10
WO2007053849A3 WO2007053849A3 (fr) 2007-11-22

Family

ID=38006553

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/060450 Ceased WO2007053849A2 (fr) 2005-11-01 2006-11-01 Methode et dispositif de fixation d'un ongle artificiel

Country Status (1)

Country Link
WO (1) WO2007053849A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2326247A1 (es) * 2007-02-09 2009-10-05 Ana Maestro Perdices Protesis ungueal.
WO2017132024A1 (fr) * 2016-01-29 2017-08-03 Miki Roberto Augusto Kit d'implantation chirurgical de guide de croissance de limbe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559055A (en) * 1984-04-13 1985-12-17 Ogunro E Olayinka Selectively removable prosthetic nail
US4819623A (en) * 1984-04-30 1989-04-11 Ogunro E Olayinka Device to foster cosmetically pleasing healing of nail bed tissue
US5060678A (en) * 1990-05-10 1991-10-29 Bauman Mark L Artificial nail and implantation techniques
US6951561B2 (en) * 2003-05-06 2005-10-04 Triage Medical, Inc. Spinal stabilization device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2326247A1 (es) * 2007-02-09 2009-10-05 Ana Maestro Perdices Protesis ungueal.
ES2326247B1 (es) * 2007-02-09 2010-07-15 Ana Maestro Perdices Protesis ungueal.
WO2017132024A1 (fr) * 2016-01-29 2017-08-03 Miki Roberto Augusto Kit d'implantation chirurgical de guide de croissance de limbe
US10327814B2 (en) 2016-01-29 2019-06-25 Roberto Augusto Miki Nail plate growth guide surgical implantation kit
US10806492B2 (en) 2016-01-29 2020-10-20 Roberto Augusto Miki Nail plate growth guide surgical implantation kit

Also Published As

Publication number Publication date
WO2007053849A3 (fr) 2007-11-22

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