WO2010131270A1 - Instrument manuel pour perforer la peau, en particulier le scalp pour une greffe de cheveux - Google Patents

Instrument manuel pour perforer la peau, en particulier le scalp pour une greffe de cheveux Download PDF

Info

Publication number
WO2010131270A1
WO2010131270A1 PCT/IT2009/000206 IT2009000206W WO2010131270A1 WO 2010131270 A1 WO2010131270 A1 WO 2010131270A1 IT 2009000206 W IT2009000206 W IT 2009000206W WO 2010131270 A1 WO2010131270 A1 WO 2010131270A1
Authority
WO
WIPO (PCT)
Prior art keywords
puncturing
rotation
axis
skin
instrument according
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/IT2009/000206
Other languages
English (en)
Inventor
Gianpiero Nobbio
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
Application filed by Individual filed Critical Individual
Priority to PCT/IT2009/000206 priority Critical patent/WO2010131270A1/fr
Publication of WO2010131270A1 publication Critical patent/WO2010131270A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/3209—Incision instruments
    • A61B17/32093—Incision instruments for skin incisions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/3209—Incision instruments
    • A61B17/3211—Surgical scalpels, knives; Accessories therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00743—Type of operation; Specification of treatment sites
    • A61B2017/00747—Dermatology
    • A61B2017/00752—Hair removal or transplantation

Definitions

  • the present invention relates to a manual instrument for puncturing the skin, in particular the scalp for hair transplant, an application to which the following description will make particular reference without this implying any loss of generality.
  • a surgical method is commonly used that envisages removing from non-bald areas of the scalp, generally located in the occipital region, a certain number of hair bulbs, and then implanting the hair bulbs, thus taken, in a bald region of the scalp, according to a desired pattern.
  • the region that is to undergo the implantation is previously treated so as to create a series of incisions (or holes) to obtain sites that are each to house a respective hair bulb or a certain number of bulbs, according to the techniques used.
  • common techniques for taking hair bulbs envisage cutting using a bistoury (or similar instruments of incision) of strips of scalp in regions in which hair is still present (for example, from the aforesaid occipital region) , and then cutting up of said strips manually in order to obtain a plurality of micrografts, each containing one or more hair bulbs; the micrografts are then re-inserted in the sites previously obtained by incision in the region of the scalp undergoing transplantation.
  • An alternative technique, less invasive for the subject envisages the use of microsurgery techniques for the extraction of single follicular units; for this purpose, a bistoury with cannula is used, configured so as to cut a small portion of tissue around the hair bulb to be extracted. This portion of tissue, together with the bulb contained therein, is then re-inserted in a desired position into the bald region of the scalp, within a site that was previously made, once again by incision.
  • the implant operations of hair bulbs envisage preventive execution of a plurality of incisions in the scalp in order to obtain the sites for their re-insertion.
  • the incisions are currently made manually one at a time so that the operation of preparation of the region of skin to undergo transplant leads to a considerable expenditure of time (considering that in a single transplant session hundreds of grafts and hair bulbs can be inserted) and is extremely laborious and painful for the patient. Consequently, even high doses of anaesthetic and analgesic are usually required, and moreover the aforesaid operations can cause even considerable losses of blood.
  • the aim of the present invention is to solve, either totally or partially, the problems highlighted above, and in particular to provide an instrument that will enable the aforesaid skin treatment operation preceding the step of re- insertion of the hair bulbs to be made more rapid, convenient, and accurate.
  • a manual instrument for puncturing the skin is consequently provided, substantially as defined in claim 1.
  • FIG. 1 is a perspective view of a manual instrument for puncturing the skin, according to an embodiment of the present invention
  • FIG. 1 is a lateral cross section of the instrument of Figure 1 ;
  • FIG. 3 is a front view of the instrument of Figure 1;
  • Figure 4 is a perspective view of a spacer disk of the instrument of Figure 1;
  • FIG. 5 is a perspective view of a puncturing disk of the instrument of Figure 1;
  • FIG. 6 is a front view of the puncturing disk of Figure 5 ;
  • Figure 7 is a plan view of the puncturing disk of Figure 5.
  • a particular aspect of the present invention envisages providing a manual instrument for puncturing the skin that will enable an operator to make a plurality of incisions simultaneously, the incisions being arranged in a uniform way according to a desired, repeatable, and easily configurable pattern.
  • a manual instrument for puncturing the skin designated as a whole by 1, comprises a handle element 2, having a substantially cylindrical tubular shape elongated along a longitudinal axis A (which also represents a central axis of symmetry thereof) , and having a gripping portion 2a, designed to be gripped by a user, and a head portion 2b, set as a prolongation of the gripping portion 2a along the longitudinal axis A.
  • the coupling between the head portion 2b and the gripping portion 2a may be rigid or, alternatively, telescopic (in a way in itself known and hence not described in detail herein) in order to enable a useful adjustment in length (considered along the longitudinal axis A) of the handle element 2.
  • the instrument 1 further comprises a supporting element 4, mechanically coupled to the head portion 2b of the handle element 2 by means of suitable retention means, for example via the use of a screw 5, and/or of an elastic pin 6, for example, made of stainless steel (see in particular Figure 2) .
  • suitable retention means for example via the use of a screw 5, and/or of an elastic pin 6, for example, made of stainless steel (see in particular Figure 2) .
  • the coupling between the head portion 2a of the handle element 2 and the supporting element 4 can be of a telescopic type (in a way in itself known and hence not illustrated herein) .
  • the supporting element 4 has a generically L-shaped conformation along the longitudinal axis A, with a base portion 4a in contact with the handle element 2, and a body portion 4b extending parallel to the longitudinal axis A and provided with a through hole 7 (see Figure 2) at an end thereof, opposite to the base portion 4a.
  • the instrument 1 further comprises a pin (or hub) 8, which engages the through hole 7 and is fixed to the supporting element 4 in such a way as to be free to rotate about an axis of rotation B, transverse (in particular perpendicular) to the longitudinal axis A.
  • the pin 8 has a substantially cylindrical conformation extending along the axis of rotation B, on the same side with respect to the base portion 4a of the supporting element 4, and is coupled to said supporting element 4 within the through hole 7 via a bushing 9, for rotation thereof; the pin 8 is also constrained to the supporting element 4 in such a way that translation movement along the axis of rotation B is prevented.
  • a blocking ring nut 10 which blocks the portion of the pin 8 within the through hole 7 and comes to bear upon the supporting element 4 via interposition of a spacer 11, on the opposite side along the axis of rotation B with respect to the base portion 4a.
  • the pin 8 also has a longitudinal projection (or spline) 12, integral thereto and extending along the axis of rotation B substantially for the entire length of the same pin.
  • the instrument 1 further comprises a plurality of puncturing disks 14 (in Figures 1-3 six disks are illustrated, by way of example), made of metal material, for example steel, and a plurality of spacer disks 15 (seven are illustrated in Figures 1-3) , which are also made of metal material or, alternatively, of Teflon or nylon.
  • the puncturing disks 14 are provided with a plurality of sharp tips 16, uniformly distributed along their outer perimeter and extending radially outwards, whilst the spacer disks 15 have a flat perimetral edge, without tips.
  • the set of the puncturing disks 14 (with the corresponding tips 16) , of the spacer disks 15, and of the pin 8 can hence be defined as a cutting assembly of the instrument 1, having the function of making the incisions in the skin.
  • Both the puncturing disks 14 and the spacer disks 15 are mounted on the pin 8, coaxially thereto with respect to the axis of rotation B so as to be fixed to the pin 8 during its movement of rotation; the tips 16 of the puncturing disks 14 are thus distributed about said axis of rotation B.
  • the puncturing disks 14 and the spacer disks 15 have a respective central opening 17 (see also the subsequent Figures 4 and 5), that is to be engaged by the pin 8, and moreover a respective first recess 18 made internally starting from the central opening 17 (and communicating therewith) , which is to be engaged by the longitudinal projection 12 of the same pin 8.
  • the puncturing disks 14 and the spacer disks 15 cannot rotate freely, but are rendered fixed to the movement of rotation of the pin 8 about the axis of rotation B.
  • a tightening ring nut 19 secures the puncturing disks 14 and the spacer disks 15 to the pin 8, preventing their translation along the axis of rotation B and bringing the puncturing disks 14 to bear upon respective spacer disks 15; the spacer disks 15 longitudinally more external with respect to the axis of rotation B come moreover to bear one upon the supporting element 4 and the other upon the same tightening ring nut 19 so that there will be no play in the direction of the axis of rotation B between the puncturing disks 14 and the spacer disks 15.
  • each puncturing disk 14 has a circular perimeter, a given thickness di (for example less than a respective thickness of the spacer disks 15 and, for example, of between 0.6 mm and 1.2 mm), and an outer lateral surface, integrally extending from which are the tips 16.
  • the tips 16 are ten in number, angularly spaced at equal distances apart about the axis of rotation B by an angle of 36°.
  • each tip 16 is constituted by a pyramid with polygonal base, in particular hexagonal base, and has two sharp edges, forming between them a cutting angle a of, for example, 24°, arranged on opposite sides along the advancing direction of the puncturing disk 14 during rotation of the pin 8.
  • the central opening 17 also has a circular perimeter, whilst the first recess 18 has a squared, rectangular, profile.
  • the first recess 18 is moreover aligned to a pair of tips 16 along its longitudinal axis of symmetry, for example in a direction parallel to the longitudinal axis A.
  • Each puncturing disk 14 also has a second recess 20, having a shape substantially corresponding to that of the first recess 18, and angularly offset with respect to the longitudinal axis of the same first recess 18 by an angle ⁇ , of for example 18° (considering a rotation about the axis of rotation B) .
  • the puncturing disks 14 are fitted on the pin 8 in --such a way that the longitudinal projection 12 engages alternatively the first recess 18 or the second recess 20 of successive puncturing disks so that the tips 16 and the resulting incisions made in the skin are not all aligned parallel to the axis of rotation B, but arranged in twos staggered (in particular by the angle ⁇ ) along the same axis. In this way, it is possible to obtain a denser and more uniform distribution of the holes for subsequent implantation, for aesthetic reasons and to obtain a closer resemblance to the natural arrangement of the hair.
  • the instrument 1 is gripped by the user, and the supporting element 4 and the associated puncturing disks 14 and corresponding tips 16 are pressed against a portion of skin to be treated, with the longitudinal axis A of the instrument 1 set transverse to the surface of the skin (for example, substantially perpendicular to this surface) .
  • the instrument 1 is then made to advance slowly over the portion of skin, in a transverse advancing direction with respect to the axis of rotation B (in particular orthogonal to this axis) , causing rotation of the pin 8 and of the puncturing disks 14 fixed thereto.
  • the tips 16 make incisions, in turn, in the skin causing formation of corresponding incisions.
  • the treatment is performed by displacing the instrument 1 each time over strips of skin, which extend parallel and adjacent to each other in the aforesaid advancing direction, in the sense that, once the movement of the instrument has terminated over a first strip of skin, the instrument is shifted onto an adjacent strip and moved parallel to the path previously made over the immediately adjacent strip of skin.
  • the arrangement of the resulting incisions is hence uniform and depends only on the geometry and the mutual arrangement of the puncturing disks 14 and of the spacer disks 15 on the pin 8.
  • the number of tips 16 determines the spacing between the incisions in the advancing direction of the instrument 1 over the skin
  • the thickness of the puncturing disks 14 and of the spacer disks 15 determines the distance of separation between the incisions in a direction transverse to the advancing direction.
  • the number of puncturing disks 14 evidently determines the number of incisions that are made simultaneously on the skin and the size of the strip of skin that is treated in a single "pass" of the instrument 1.
  • the pattern of the incisions resulting from advance of the instrument 1 over the skin is altogether uniform and depends only upon the arrangement and number of the constitutive elements (amongst which puncturing disks 14, spacer disks 15, and tips 16), and hence not upon the manual skill of the user.
  • the puncturing disks 14 and the spacer disks 15 can be easily removed from the pin 8 (by release of the tightening ring nut 19) so that that they can undergo cleaning, washing, sterilization, and/or be replaced.
  • the instrument described enables a plurality of holes to be made simultaneously on a given portion of skin, and moreover the rotation of the puncturing disks enables fast displacement of the instrument, thus obtaining in very short times an altogether uniform distribution of incisions.
  • the entire instrument can be washed and sterilized; in particular, the modes of assembly described of the puncturing disks on the rotation pin enables a fast and convenient disassembly thereof for the purposes of cleaning or replacement .
  • the instrument 1 can undergo a wide range of configurations and can be adapted to a wide range of uses and types of areas to be treated, it being in fact sufficient to modify for this purpose the number or conformation of puncturing disks and spacer disks.
  • the instrument 1 may comprise a different number of puncturing disks 14 or spacer disks 15, as likewise a different number of tips 16 may be envisaged for each puncturing disk 14 or a different geometrical conformation thereof, in any case having sharp cutting edges in the advancing direction of the instrument on the skin.
  • the tips could have a generically rectangular shape (for example, similar to that of a flat screwdriver) ; the pyramidal shape described previously is in any case advantageous in so far as, thanks to the presence of the two cutting edges, it ensures the best operation of cutting of the scalp.
  • an advantageous number of puncturing disks 14 (which can in any case be in any number greater than one) is comprised between four and ten; an advantageous number of spacer disks 15 (which can possibly be provided in a number greater than one between two adjacent puncturing disks, or else be at times omitted) is comprised between six and fifteen; an advantageous cutting angle is comprised between 24° and 55°; an advantageous number of tips associated to each puncturing disk is comprised between ten and twenty-five, in particular equal to twenty.
  • a different embodiment of the present invention can envisage the use of a cutting cylinder coupled to the supporting element 4 and free to rotate about a hub (rotatably fixed to the same supporting element) .
  • the cutting cylinder could present, on its outer lateral surface, a desired arrangement of tips 16 for making incisions in the skin.
  • a single removable element would be provided (i.e., the cutting cylinder), instead of the plurality of puncturing disks 14 and spacer disks 15, with the consequence, however, of a reduction in the configurability of the puncturing instrument.
  • the instrument described can be used for making incisions in the skin also in other regions of the body other than the scalp, and for other applications, different from hair transplant; in particular, the instrument described, with obvious geometrical modifications can find advantageous use in any area of the body that is to be subjected to hair transplant (for example, it can be used in the region of the eyebrow) .

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Dermatology (AREA)
  • Heart & Thoracic Surgery (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

L'invention porte sur un instrument manuel (1) pour perforer la peau, en particulier pour des applications de greffe de cheveux, l'instrument comportant : un élément de manche (2) agencé pour être manipulé par un utilisateur ; un élément de support (4) couplé à l'élément de manche (2) ; et un ensemble de coupe (8, 14, 15), qui est couplé à l'élément de support (4) de façon à être libre d'effectuer une rotation suivant un axe de rotation (B) et qui comporte une pluralité de pointes (16) agencées suivant le motif de perforation désiré autour de l'axe de rotation (B).
PCT/IT2009/000206 2009-05-11 2009-05-11 Instrument manuel pour perforer la peau, en particulier le scalp pour une greffe de cheveux Ceased WO2010131270A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2009/000206 WO2010131270A1 (fr) 2009-05-11 2009-05-11 Instrument manuel pour perforer la peau, en particulier le scalp pour une greffe de cheveux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2009/000206 WO2010131270A1 (fr) 2009-05-11 2009-05-11 Instrument manuel pour perforer la peau, en particulier le scalp pour une greffe de cheveux

Publications (1)

Publication Number Publication Date
WO2010131270A1 true WO2010131270A1 (fr) 2010-11-18

Family

ID=41277134

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2009/000206 Ceased WO2010131270A1 (fr) 2009-05-11 2009-05-11 Instrument manuel pour perforer la peau, en particulier le scalp pour une greffe de cheveux

Country Status (1)

Country Link
WO (1) WO2010131270A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8998931B2 (en) 2011-10-17 2015-04-07 Pilofocus, Inc. Hair restoration
US9314082B2 (en) 2009-09-17 2016-04-19 Pilofocus, Inc. System and method for extraction of hair follicle
US9364252B2 (en) 2009-09-17 2016-06-14 Pilofocus, Inc. Hair restoration surgery
US9693799B2 (en) 2009-09-17 2017-07-04 Pilofocus, Inc. System and method for aligning hair follicle
US10357278B1 (en) 2015-11-05 2019-07-23 Sanusi Umar Slit maker

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040030254A1 (en) * 2002-08-07 2004-02-12 Eilaz Babaev Device and method for ultrasound wound debridement
DE102005049407A1 (de) * 2005-10-13 2007-04-26 Stork, Katrin, Dr.med. Rollskalpell
US20070156164A1 (en) * 2004-03-09 2007-07-05 Cole John P Follicular dissection device and method
US20080066322A1 (en) * 2006-09-14 2008-03-20 The Government Of The Usa As Represented By The Secretary Of The Dept. Of Health & Human Services Dissection Tool and Methods of Use

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040030254A1 (en) * 2002-08-07 2004-02-12 Eilaz Babaev Device and method for ultrasound wound debridement
US20070156164A1 (en) * 2004-03-09 2007-07-05 Cole John P Follicular dissection device and method
DE102005049407A1 (de) * 2005-10-13 2007-04-26 Stork, Katrin, Dr.med. Rollskalpell
US20080066322A1 (en) * 2006-09-14 2008-03-20 The Government Of The Usa As Represented By The Secretary Of The Dept. Of Health & Human Services Dissection Tool and Methods of Use

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9314082B2 (en) 2009-09-17 2016-04-19 Pilofocus, Inc. System and method for extraction of hair follicle
US9364252B2 (en) 2009-09-17 2016-06-14 Pilofocus, Inc. Hair restoration surgery
US9693799B2 (en) 2009-09-17 2017-07-04 Pilofocus, Inc. System and method for aligning hair follicle
US8998931B2 (en) 2011-10-17 2015-04-07 Pilofocus, Inc. Hair restoration
US9861386B2 (en) 2011-10-17 2018-01-09 Pilofocus, Inc. Hair restoration
US10357278B1 (en) 2015-11-05 2019-07-23 Sanusi Umar Slit maker

Similar Documents

Publication Publication Date Title
US8202279B2 (en) Follicular extraction punch and method
US9204892B2 (en) Follicular extraction punch and method
US5611810A (en) Hair transplantation apparatus
US7785339B2 (en) Tool for coring portions of one or more hair follicles
US5578054A (en) Method for hair transplantation
US5989273A (en) Apparatus for producing hair transplantation donor strips and methods
JP2020189124A (ja) 非熱組織切除を使用する皮膚治療のための方法及び機器
WO2013013199A2 (fr) Procédé et appareil pour l'échantillonnage de tissu sous la surface
US10524852B1 (en) Distal sealing end effector with spacers
WO2010131270A1 (fr) Instrument manuel pour perforer la peau, en particulier le scalp pour une greffe de cheveux
KR20180102107A (ko) 최소 침습형 조직 채취 장치
US20050101972A1 (en) Devices and systems for separating and preparing skin
KR102102400B1 (ko) 모낭이식장치
KR101776126B1 (ko) 소화 내시경 미세 절개 수술용 더블 조인트 낫칼
US20130085570A1 (en) Fenestrator device and related methods
US10702373B2 (en) Hair graft placement apparatus used for hair transplantations
CN212698984U (zh) 新型医用微创多株毛发移植裂隙预置器
KR200277068Y1 (ko) 모발이식용 식모기
US20190282260A1 (en) Apparatus with needle for the extraction of hair follicles in long form
KR20030064132A (ko) 모발이식용 식모기
US20160338717A1 (en) Method and Implement for Increasing Vascularization
WO2009145116A1 (fr) Appareil d’étirement de nerf
CN210784562U (zh) 一种新型酒渣鼻治疗用手术刀
WO2018231169A1 (fr) Appareil avec aiguille pour l'extraction de follicules pileux longs
CN112190293A (zh) 新型医用微创多株毛发移植裂隙预置器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09787726

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09787726

Country of ref document: EP

Kind code of ref document: A1