WO2018000058A1 - Outil chirurgical pour l'élimination de poils longs et structures de liaison pour greffe de poils - Google Patents

Outil chirurgical pour l'élimination de poils longs et structures de liaison pour greffe de poils Download PDF

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Publication number
WO2018000058A1
WO2018000058A1 PCT/BR2016/050149 BR2016050149W WO2018000058A1 WO 2018000058 A1 WO2018000058 A1 WO 2018000058A1 BR 2016050149 W BR2016050149 W BR 2016050149W WO 2018000058 A1 WO2018000058 A1 WO 2018000058A1
Authority
WO
WIPO (PCT)
Prior art keywords
removal
surgical tool
connecting structures
hair
long
Prior art date
Application number
PCT/BR2016/050149
Other languages
English (en)
Inventor
Otavio Augusto SILVA BOAVENTURA LIMA
Original Assignee
Silva Boaventura Lima Otavio Augusto
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
Application filed by Silva Boaventura Lima Otavio Augusto filed Critical Silva Boaventura Lima Otavio Augusto
Priority to PCT/BR2016/050149 priority Critical patent/WO2018000058A1/fr
Publication of WO2018000058A1 publication Critical patent/WO2018000058A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments
    • A61B17/32053—Punch like cutting instruments, e.g. using a cylindrical or oval knife
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00743—Type of operation; Specification of treatment sites
    • A61B2017/00747—Dermatology
    • A61B2017/00752—Hair removal or transplantation

Definitions

  • the approach shall focus only on surgical procedures aimed at treating hair loss on the scalp; the techniques presented hereby may be applied to other areas of the body, such as eyebrows, to both men and women, and may also use hair taken from other parts of the body.
  • FUT 1 st - Follicular Unit Transplantation
  • FUT Although being an established traditional technique, FUT has some disadvantages. What patients fear the most in relation to this technique is the linear donor scar on the scalp - both on the back and on the sides of the head -, as result of the incision made by the surgeon.
  • FUE 2 nd - Follicular Unit Extraction
  • Trimming the donor hair is required as the hair must be short to be punched, which poses a problem to most patients as it may keep them from performing their normal social and professional activities.
  • new advances to this technique have been developed that allow surgeons to perform this procedure without having to trim the whole head. Most of these advances allow for the surgeon to trim only the donor areas which are not observable as they are covered by adjoining non-trimmed areas.
  • the tool, object of the present invention is technological as it allows the surgeon to perform the FUE procedure without having to trim any part of the head whatsoever. Further, it allows for the extraction of long hairs using the FUE technique, a procedure never before achieved. This new tool, therefore, may be used in patients who prefer the FUE method for the transplantation of long hairs.
  • This Patent Report presents, simultaneously, the techniques and related criticism. It is worth mentioning that the surgical tools used in patients have hair-size dimensions.
  • Figure 1 shows a cross view of a piece of dermis (D) with a single hair strand, whether from the head or not, from a follicular unit, in which one can see the hair (P), the bulb (B), and its connecting structures, namely, the sebaceous gland (G), the irrigation vessels (I), and the arrector pili muscle (M).
  • the removal of cylinder-shaped tissues with depths ranging from 2 mm to 3 mm, and varying in size between 0.75 mm and 1 .25 mm, is necessary for the total extraction and survival of the hair (P) and its connecting structures. This is performed using a surgical instrument that is attached to the end of a similar instrument that is a little smaller in size than a dental handpiece or drill shank, said tool being used to twist the punch as per figure 2.
  • Figure 2 shows a front view of the punch (PU), which plays an important role in the State of the Art as its dimensions are compatible with those of the anatomical surgery target, ranging from 2 to 3 mm in length (d), with a diameter of up to 1 .25 mm.
  • PU punch
  • Figure 3 shows a front view with lower scalpriform and cutting edges (C) of the punch (PU).
  • This tool fits the rotary handpiece, whose rotation is computer- controlled as it responds to the surgeon's pedal-pressing commands.
  • a forceps is subsequently used to remove them from the punch (PU).
  • the object of this patent advances the State of the Art because it comprises a tool called open punch (2) that makes it possible to extract follicular units from donor areas for transplantation.
  • These hairs can be:
  • an open punch also enables the surgeon to extract curly coarse hairs, which are typically more difficult to be extracted using the FUE method as they describe a curve.
  • This curve is not followed by the punch due to its straight format, and as the punch's round cutting end touches the hairs in the dermis it cuts them.
  • This round cutting end of the punch is responsible for the phenomenon called hair transection that takes place the moment the punch penetrates the skin and accidentally hits the hairs of the follicular units.
  • the open punch object of the present patent, is not provided with a complete and totally cutting 360 degrees circumference. Because it is open on one of its portion and lacks a complete circumference it reduces hair transection as its cutting circumference varies from 275 to 315 degrees. Illustrations and functional aspects of the SURGICAL TOOL FOR THE REMOVAL OF HAIRS AND CONNECTING STRUCTURES FOR HAIR TRANSPLANT, object of this patent.
  • Figure 4 shows an schematic view that does not reflect the actual size of an open punch (2) in its sui generis format, comprising a 20 mm long hollow cylinder, made of surgical metal, along with its 12.5 mm long upper terminal (5) with an external diameter of about 2 mm, which can be coupled to a rotary dental handpiece as cited above, as well as a 7.5 mm long lower terminal with an external diameter varying from 0.9 to 1 mm and an internal diameter ranging from 0.7 to 0.8 mm.
  • Figure 5 shows a schematic view that does not reflect the actual size of the lower and functional terminal (3) aperture (4) of the open punch (2), which extends upwards as per figure 5, for about 3 to 4 mm in extension from the lower portion of the lower and functional terminal (3).
  • Figure 6 shows and aerial and schematic view of the open punch's (2) lower and functional terminal (3) in order to show its aperture (4), aimed at extracting material, so as to allow the hollow cylinder to have a missing edge, or open, of about 45°, that is to say, the cylinder perimeter occupies only 315° of the circumference, and the aperture may be of up to 90°, so that the perimeter occupied by the cylinder may vary from 270° and 315°.
  • the SURGICAL TOOL FOR THE REMOVAL OF HAIRS AND CONNECTING STRUCTURES FOR HAIR TRANSPLANT (1 ) is functionally capable of extracting only part of the material encompassed by the cylinder perimeter, thereby allowing the open punch (2) to penetrate laterally in relation to the hair that, subsequently, occupies the lower and functional terminal (3) hollow portion of the aperture (4) of the open punch (2), which may then be used to extract either long follicular units or units that have not been trimmed flush with the scalp.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

Outil chirurgical pour l'élimination de poils longs comprenant un poinçon creux (2) avec une borne inférieure et fonctionnelle (3) ayant une ouverture (4) s'étendant vers le haut à partir de la partie la plus basse de la borne inférieure et fonctionnelle (3). En raison de l'ouverture (4), le poinçon n'est pas pourvu d'une arête complète et totalement coupante de 360 degrés de circonférence. Une arête de coupe incomplète réduit la transsection des poils tout en récoltant des unités folliculaires uniques. La circonférence de l'arête coupante varie de 275 à 315 degrés.
PCT/BR2016/050149 2016-06-30 2016-06-30 Outil chirurgical pour l'élimination de poils longs et structures de liaison pour greffe de poils WO2018000058A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/BR2016/050149 WO2018000058A1 (fr) 2016-06-30 2016-06-30 Outil chirurgical pour l'élimination de poils longs et structures de liaison pour greffe de poils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BR2016/050149 WO2018000058A1 (fr) 2016-06-30 2016-06-30 Outil chirurgical pour l'élimination de poils longs et structures de liaison pour greffe de poils

Publications (1)

Publication Number Publication Date
WO2018000058A1 true WO2018000058A1 (fr) 2018-01-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2016/050149 WO2018000058A1 (fr) 2016-06-30 2016-06-30 Outil chirurgical pour l'élimination de poils longs et structures de liaison pour greffe de poils

Country Status (1)

Country Link
WO (1) WO2018000058A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019054959A3 (fr) * 2016-11-05 2019-04-25 Asmed Ozel Sac Ekimi Saglik Hizmetleri Ticaret Limited Sirketi Appareil avec aiguille pour l'extraction de follicules pileux sous une forme longue

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1032931C1 (nl) * 2006-11-23 2008-05-26 Hair Science Inst Werkwijzen en inrichtingen voor haartransplantatie.
US20100185116A1 (en) * 2009-01-19 2010-07-22 King Saud University Punch biopsy device
EP2781200A1 (fr) * 2005-09-30 2014-09-24 Restoration Robotics, Inc. Systèmes automatisés et procédés pour prélever et implanter des unités folliculaires

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2781200A1 (fr) * 2005-09-30 2014-09-24 Restoration Robotics, Inc. Systèmes automatisés et procédés pour prélever et implanter des unités folliculaires
NL1032931C1 (nl) * 2006-11-23 2008-05-26 Hair Science Inst Werkwijzen en inrichtingen voor haartransplantatie.
US20100185116A1 (en) * 2009-01-19 2010-07-22 King Saud University Punch biopsy device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019054959A3 (fr) * 2016-11-05 2019-04-25 Asmed Ozel Sac Ekimi Saglik Hizmetleri Ticaret Limited Sirketi Appareil avec aiguille pour l'extraction de follicules pileux sous une forme longue

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