CN111436989B

CN111436989B - Labia suture cutter

Info

Publication number: CN111436989B
Application number: CN202010392490.XA
Authority: CN
Inventors: 朱振荣; 姜辉; 朱佳; 孙朴; 王国耀
Original assignee: Ronghui Medical Technology Suzhou Co ltd
Current assignee: Ronghui Medical Technology Suzhou Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2024-07-23
Anticipated expiration: 2040-05-11
Also published as: CN111436989A

Abstract

An labia suture cutter, which belongs to the technical field of medical surgical instruments. Comprises a nail pushing sleeve protective shell, a nail pushing sleeve accommodating cavity and an elliptic shape at the left end; the nail pushing sleeve is matched with the nail pushing sleeve accommodating cavity, the left end is elliptical, and nail pushing claws are respectively arranged at the front and rear parts of the end face of the left end; the nail carrying disc is elliptical and is arranged in the nail pushing sleeve accommodating cavity, and nail carrying holes are formed in the nail carrying disc; a stitch nail foot bending disc which is matched with the nail carrying disc, and a pit for bending the nail foot is arranged on the left side of the stitch nail foot bending disc; the nail pushing sleeve driving mechanism is connected with the right end of the nail pushing sleeve protective shell; an labia guiding and positioning plate which is positioned at the left side of the stitch nail foot bending plate; an labia guiding and positioning plate tightening and adjusting mechanism is connected between the labia guiding and positioning plate and the staple pushing sleeve driving mechanism. The overall regulation effect of the labia incision is ensured; avoiding blindness of stitching; the wound suturing effect is good; the postoperative suture efficiency is improved, and the operation intensity is reduced; simple structure, convenient manufacture and use, and can reduce the cost burden of the operation device of the operation subject.

Description

Labia suture cutter

Technical Field

The invention belongs to the technical field of medical surgical instruments, and particularly relates to an labia suture cutter.

Background

The above-mentioned labial suture cutter functions as a special instrument for suturing the boundary between the excision and non-excision of the labia to be excised and then excising the enlarged labial portion outside the suturing region; the labia primarily refer to the labia minora, which is a pair of thin skin tissue or mucosal folds between the labia majora, merging on both sides of the upper end, and the lower end meeting the labia majora. Clinically, the shape, size, symmetry, natural contour and color of the labia minora vary from person to person and are related to factors such as the age, race, ethnicity, height, fertility and obesity of the female.

There are many ways of performing an operation on the labial hypertrophy, such as a laser operation, which has a certain auxiliary effect on the labial reduction operation, and has a gasifying hemostasis effect when cutting to reduce bleeding during the operation, but it is quite unsafe to simply cut the labia minora without suturing by using a laser, for example, it is easy to cause wound infection, form scar at the wound site, and if the scar is wide, it may cause deformation of the labia minora, etc. Although the traditional manual cutting and manual suturing can make up for the defects of laser operation to a great extent, the traditional manual cutting and manual suturing has the defects of labor and time consumption, uneven cutting, irregular, excessive bleeding, complex hemostasis, too loose and too tight suturing, uneven suture track, too dense and too loose suture points and great working strength of operators.

Technical information relating to male genital prepuce cutting staplers, such as CN101884559B (prepuce cutting stapler), CN2555783Y (a prepuce cutter), CN201365945Y (prepuce circumcision stapler), CN101301219a (titanium nickel memory alloy prepuce cutter) and CN102217969B (prepuce cutting stapler) and CN105662543B (prepuce circumcision stapler), etc., are seen in the published patent application.

However, none of the middle and outer patent documents has seen technical information about a female labial incision stapler (also referred to as a "stapler"), thus rendering the current suturing apparatus blank for use after a female labiectomy.

Because of the substantial distinction between the female and male external genitalia, the inability to fully reference is not limited to the above-exemplified structures of the prepuce cutting stapler dedicated to men, such as the need to shape the physiological curvature of the female labia, the need to reliably position the enlarged portion of the female labia prior to cutting, and so forth. The present inventors have made a long-lasting and useful search for the aforementioned factors, and the technical solutions to be described below are made in this context.

Disclosure of Invention

The invention aims to provide an labia suture cutter which is beneficial to well positioning labia of a subject before operation so as to ensure the overall regulation effect of labia incision after a hypertrophied part is resected, is beneficial to adapting to the shape of female external genitalia so as to avoid suturing non-incision parts and avoid blindness of suturing, is beneficial to ensuring consistent density of suture points of incision suture areas so as to embody ideal suture effect, is convenient to embody agility of automatic suture action so as to improve operation effect and lighten operation intensity of operators, is beneficial to embodying simplicity of structure so as to facilitate manufacture and convenient use and lighten cost burden of the subject to surgical equipment.

The task of the invention is accomplished in that an labial suturing cutter comprises a push pin sleeve protecting shell, wherein the push pin sleeve protecting shell is provided with a push pin sleeve accommodating cavity, and the left end of the push pin sleeve protecting shell is elliptical; the nail pushing sleeve is in sliding fit with the nail pushing sleeve accommodating cavity of the nail pushing sleeve protective shell, the left end of the nail pushing sleeve is also elliptical, nail pushing claws extend in the front and rear of the left end face of the nail pushing sleeve at equal distance intervals, and no nail pushing claw gap is formed between the front nail pushing claw of the left end face and the upper part and the lower part of the rear nail pushing claw of the left end face; the nail carrying disc is elliptical in shape, is arranged in the nail pushing sleeve accommodating cavity at a position corresponding to the left side of the nail pushing sleeve and is fixed with the cavity wall of the nail pushing sleeve accommodating cavity, and is provided with nail carrying holes which are equal to the nail pushing claws in number and are used for accommodating the staples at the position corresponding to the nail pushing claws, and the nail carrying holes penetrate from the right side to the left side of the nail carrying disc; a staple leg bending plate with the same shape as the staple carrying plate, wherein the staple leg bending plate is matched with the staple carrying plate at a position corresponding to the left side of the staple carrying plate, and bent staple leg pits with the same number as the staple carrying holes are formed at the left side of the staple leg bending plate and at the position corresponding to the staple carrying holes; the nail pushing sleeve driving mechanism is connected with the right end of the nail pushing sleeve protective shell and corresponds to the right end face of the nail pushing sleeve; an labia guiding and positioning plate with the same outline shape as the stitch foot bending plate, wherein the labia guiding and positioning plate is positioned at the left side of the stitch foot bending plate; an labial guide positioning plate take-up adjustment mechanism connected between the labial guide positioning plate and the staple pusher drive mechanism.

In a specific embodiment of the invention, the front side and the rear side of the left end of the nail pushing sleeve protecting shell are respectively provided with a nail carrying bin positioning flange hole, the nail carrying bin positioning flange hole penetrates through the cavity wall of the nail pushing sleeve accommodating cavity, the right end of the nail pushing sleeve protecting shell is extended with a handle connecting seat connector adapter sleeve, and the handle connecting seat connector adapter sleeve cavity of the handle connecting seat connector adapter sleeve is communicated with the nail pushing sleeve accommodating cavity; a sliding sleeve pushing seat extends from the right end of the nail pushing sleeve and is in sliding fit with the handle connecting seat connector matching sleeve cavity; a nail-carrying bin positioning flange protruding from the outer wall surface of the nail-carrying disc is formed on the outer wall of the nail-carrying disc and at a position corresponding to the nail-carrying bin positioning flange hole, and the nail-carrying bin positioning flange is embedded with the nail-carrying bin positioning flange hole; a wound anti-adhesion nail pad with the same shape as the nail carrying disc is arranged between the right side corresponding to the nail leg bending disc and the left side of the nail carrying disc; the nail pushing sleeve driving mechanism is connected with the handle connecting seat connector adapter sleeve and corresponds to the right end face of the sliding sleeve pushing seat; a labia guiding and positioning plate cavity division plate is formed in the middle part of the labia guiding and positioning plate and is parallel to the long side direction of the labia guiding and positioning plate, and a first labia guiding cavity I and a second labia guiding cavity II are separated on the labia guiding and positioning plate by the labia guiding and positioning plate cavity division plate; the labia guiding and positioning plate tightening and adjusting mechanism is connected with the labia guiding and positioning plate cavity division plate.

In another specific embodiment of the invention, a pair of handle connecting seat connector clamping block holes are arranged on the cavity wall of the handle connecting seat connector matching sleeve cavity of the handle connecting seat connector matching sleeve of the nail pushing sleeve protecting shell, the pair of handle connecting seat connector clamping block holes are mutually separated by 180 degrees around the circumferential direction of the cavity wall of the handle connecting seat connector matching sleeve cavity; a sliding sleeve pushing seat hole is formed in the central position of the sliding sleeve pushing seat of the nail pushing sleeve; the upper part and the lower part of the nail carrying disc are respectively provided with a limit column hole of the stitch nail foot bending disc which penetrates from the left side to the right side of the nail carrying disc; a staple foot bending plate limiting column is respectively formed at the right sides of the upper part and the lower part of the staple foot bending plate and at the positions corresponding to the staple foot bending plate limiting column holes; a limiting column avoiding concave cavity which is sunken towards the direction of a nail pad cavity of the wound anti-adhesion nail pad is formed at the upper part and the lower part of the wound anti-adhesion nail pad and at the positions corresponding to the limiting columns of the stitch nail foot bending disc respectively; the nail pushing sleeve driving mechanism is connected with the handle connecting seat connector matching sleeve at a position corresponding to the handle connecting seat connector clamping block hole; a partition plate extending plate extends on the right side of the labia guiding and positioning plate cavity partition plate of the labia guiding and positioning plate, and a push plate driving screw connecting column is sequentially extended on the right end of the partition plate extending plate and is in sliding fit with the sliding sleeve pushing seat hole; the labia guiding positioning plate tightening and adjusting mechanism is connected with the push plate driving screw connecting column.

In still another specific embodiment of the present invention, an labial guide and positioning plate anti-rotation flange is formed at each of the upper left and lower parts of the staple foot bending tray, and an labial guide and positioning plate anti-rotation flange engaging hole is formed at each of the upper right and lower parts of the labial guide and positioning plate at a position corresponding to the labial guide and positioning plate anti-rotation flange, the labial guide and positioning plate anti-rotation flange engaging hole being a blind hole or a through hole and being engaged with the labial guide and positioning plate anti-rotation flange.

In still another specific embodiment of the present invention, a wound anti-adhesion nail pad positioning flange hole is opened at the upper and lower portions of the nail carrying tray and at the position accompanying the staple foot bending tray limit post hole, and a wound anti-adhesion nail pad positioning flange is respectively formed at the upper and lower right sides of the wound anti-adhesion nail pad and at the position corresponding to the wound anti-adhesion nail pad positioning flange hole, and the wound anti-adhesion nail pad positioning flange is matched with the wound anti-adhesion nail pad positioning flange hole.

In still another specific embodiment of the present invention, the wound anti-adhesion nail pad is a non-metallic compliant material, the non-metallic compliant material is plastic or rubber, the plastic is medical non-toxic grade plastic, and the rubber is medical rubber.

In a further specific embodiment of the present invention, the driving mechanism for the push pin sleeve comprises a handle connecting seat, a sliding sleeve, a pair of handles, a pair of connecting pieces and a safety pin, wherein the handle connecting seat is formed with a handle connecting seat cavity penetrating from the left end to the right end of the handle connecting seat, a handle connecting seat connector is extended at the left end of the handle connecting seat, the handle connecting seat connector is inserted into the handle connecting seat cavity, a pair of handle connecting seat clamping blocks are formed on the handle connecting seat connector at positions corresponding to the pair of handle connecting seat clamping block holes, the pair of handle connecting seat clamping blocks are clamped with the pair of handle connecting seat clamping block holes, a pair of elastic sheet limiting seats are extended at the right end of the handle connecting seat, the pair of elastic sheet limiting seats are in face-to-face relation with each other, the space between the pair of spring limiting seats is formed into spring limiting seat yielding grooves, one side of the pair of spring limiting seats, which are opposite to each other, is respectively formed into a spring clamping groove, a pair of connecting piece movable grooves are formed in the middle of the handle connecting seat in a manner of being parallel to the length direction of the handle connecting seat, the pair of connecting piece movable grooves form a face-to-face position relationship with each other, the handle connecting seat cavity is communicated with the outside through the pair of connecting piece movable grooves, one side of the left end of the handle connecting seat, which faces upwards, is provided with a handle connecting seat safety pin hole, the front side and the rear side of the left end of the handle connecting seat are respectively extended with a handle left end hinge seat, a sliding sleeve is slidingly arranged in the handle connecting seat cavity, the left end face of the sliding sleeve corresponds to the right end face of the sliding sleeve pushing seat, a sliding sleeve safety pin hole is formed in the middle of the sliding sleeve and at the position corresponding to the handle connecting seat safety pin hole, a pair of sliding sleeve guide blocks are formed at the right end of the sliding sleeve and correspond to the positions of the movable grooves of the connecting pieces, the pair of sliding sleeve guide blocks are in sliding fit with the cavity wall of the handle connecting seat cavity, a sliding sleeve screw yielding hole penetrating from the left end to the right end of the sliding sleeve is formed at the central position of the sliding sleeve, the left ends of the pair of handles are respectively hinged with the handle left end hinging seats through handle left end hinging pins, handle connecting piece hinging seats are respectively formed at the middle parts of the pair of handles and at the corresponding positions on the opposite sides, the right ends of the pair of handles are formed into free ends, one ends of the pair of connecting pieces, which face the pair of sliding sleeve guide blocks, are respectively hinged with the pair of sliding sleeve guide blocks through a connecting piece first pin shaft I, one ends of the pair of connecting pieces, which face the pair of handles, are respectively, extend out of the handle connecting seat cavity through the pair of connecting piece movable grooves, are respectively hinged with the handle connecting seat hinging seats through a connecting piece second pin shaft II, and the safety pins are sequentially inserted into handle connecting seat pin holes and the sliding sleeve safety pin holes; a group of push plate driving screw rod connecting column guide step grooves are formed in the hole wall of the sliding sleeve pushing seat hole of the sliding sleeve pushing seat in an interval state, a group of guide steps are formed on the outer wall of the push plate driving screw rod connecting column and at positions corresponding to the group of push plate driving screw rod connecting column guide step grooves, and the group of guide steps are in sliding fit with the group of push plate driving screw rod connecting column guide step grooves; the labia guiding and positioning plate tightening and adjusting mechanism is connected with the right end of the handle connecting seat.

In a further specific embodiment of the present invention, the labia guiding and positioning plate tightening and adjusting mechanism includes a push plate driving screw, an adjusting knob and a transitional connector, wherein the left end of the push plate driving screw is fixedly connected with the push plate driving screw connecting post, the right end of the push plate driving screw is connected with the adjusting knob after sequentially passing through the sliding sleeve pushing seat hole, the sliding sleeve screw abdicating hole and the transitional connector, a transitional connector accommodating cavity is formed at the central position of the left side of the adjusting knob, the transitional connector is arranged in the transitional connector accommodating cavity, and a pair of transitional connector hooks extends on the left side surface of the transitional connector, and the transitional connector hooks are hooked into the pair of connecting piece movable grooves.

In still another specific embodiment of the present invention, spring holes are formed on the left side of the adjusting knob and on the cavity wall of the transition connector accommodating cavity at intervals around the cavity wall, spring pieces are formed at positions corresponding to the spring holes, the spring pieces are forced to be held on the outer wall of the transition connector, a push plate driving screw central hole communicated with the transition connector accommodating cavity is formed at the central position of the adjusting knob, a push plate driving screw nut is embedded at a position corresponding to the right end of the push plate driving screw central hole, a transition connector central hole is formed at the central position of the transition connector, screw external threads are formed at the right end of the push plate driving screw, and the right end of the push plate driving screw is in threaded connection with the push plate driving screw nut after passing through the transition connector central hole and the push plate driving screw central hole.

In yet another specific embodiment of the present invention, a spring terminal limit flange is formed on the outer wall of the transition connector, and the terminal of the spring abuts against the spring terminal limit flange.

One of the technical effects of the technical proposal provided by the invention is that the labia guiding and positioning plate can well position the labia hypertrophy part to be resected, and the tightness of the labia guiding and positioning plate and the labia clamp to be resected is adjusted by the labia guiding and positioning plate tightening and adjusting mechanism, and the labia guiding and positioning plate and the labia clamp to be resected are firstly sutured and then resected, thus ensuring the overall regulation effect of labia incision after the hypertrophy part is resected; secondly, the shape of the nail pushing sleeve protective shell and the left end of the nail pushing sleeve are designed to be elliptical, and a nail pushing claw-free notch is formed at the upper part and the lower part of the nail pushing sleeve respectively, so that the suturing of non-incision parts at the upper end and the lower end of the labia can be avoided, and the blindness of suturing can be avoided; thirdly, as the nail pushing claws extend at equal distance from the front to the rear of the left end face of the nail pushing sleeve, the consistency of the densities of the suture point tracks of the incision suture area can be ensured, and the ideal wound suture effect can be reflected; fourthly, as the nail pushing sleeve can instantaneously move towards the direction of the nail carrying disc by operating the nail pushing sleeve driving mechanism, the nail pushing claws can simultaneously expel the suturing nails in all the nail carrying holes of the nail carrying disc to suture wounds simultaneously, thereby improving the postoperative suturing efficiency and reducing the operation intensity of medical staff; fifth, because the whole structure is relatively simple, the device is convenient to manufacture and use, and the cost burden of the operation device of the operation person can be reduced.

Drawings

Fig. 1 is a structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic view of the assembled fig. 1.

Fig. 3 is a detailed construction view of the labial guide and positioning plate shown in fig. 1.

Fig. 4 is a schematic view showing the labia to be resected during surgery turned inside out.

Fig. 5 is a schematic view of suturing the labial incision site prior to performing the incision.

Fig. 6 is a schematic view after the excision is completed.

Detailed Description

In order to make the technical spirit and advantages of the present invention more clearly understood, the applicant will now make a detailed description by way of example, but the description of the examples is not intended to limit the scope of the invention, and any equivalent transformation made merely in form, not essentially, according to the inventive concept should be regarded as the scope of the technical solution of the present invention.

In the following description, all concepts related to the directions or azimuths of up, down, left, right, front and rear are based on the position state of fig. 1, and thus should not be construed as a specific limitation on the technical solution provided by the present invention.

Referring to fig. 1, there is shown a nail-pushing sleeve housing 1, the nail-pushing sleeve housing 1 is formed with a nail-pushing sleeve accommodating cavity 11 and the left end of the nail-pushing sleeve housing 1 is elliptical, while the front side and the rear side of the middle are respectively provided with a hollow cavity 14 with a substantially triangular shape at the corresponding position, and the middle area is gradually narrowed (narrowed) from left to right; a nail pushing sleeve 2 is shown, the nail pushing sleeve 2 is in sliding fit with the nail pushing sleeve accommodating cavity 11 of the nail pushing sleeve protecting shell 1, the left end of the nail pushing sleeve 2 is also elliptical, nail pushing claws 21 extend in the front and back of the left end face of the nail pushing sleeve 2 (also can be called as a front Fang Zuoduan end face and a back Fang Zuoduan end face) at equal distance, and a nail pushing claw notch 22 is formed between the front nail pushing claw 21 of the left end face and the upper part and the lower part of the nail pushing claw 21 behind the left end face; a staple carrying tray 3 is shown, the staple carrying tray 3 is elliptical in shape and is arranged in the staple pushing sleeve accommodating cavity 11 at a position corresponding to the left side of the staple pushing sleeve 2 and is fixed with the cavity wall of the staple pushing sleeve accommodating cavity 11, a plurality of staple carrying holes 31 for accommodating staples, which are equal in number to the staples 21, are formed in the staple carrying tray 3 at a position corresponding to the staples 21, and the staple carrying holes 31 penetrate from the right side to the left side of the staple carrying tray 3; a staple leg bending tray 4 having the same shape as the aforementioned staple tray 3 is shown, the staple leg bending tray 4 being fitted with the staple tray 3 at a position corresponding to the left side of the staple tray 3, and a number of staple leg recesses 41 equal to the number of staple holes 31 being formed at the left side of the staple leg bending tray 4 and at a position corresponding to the aforementioned staple holes 31; a driving mechanism 5 of the nail pushing sleeve is shown, the driving mechanism 5 of the nail pushing sleeve is connected with the right end of the protective shell 1 of the nail pushing sleeve and corresponds to the right end face of the nail pushing sleeve 2; an labia guiding and positioning plate 6 having the same outline shape as the aforementioned staple foot bending tray 4, i.e., having an oval shape, is shown, the labia guiding and positioning plate 6 being located on the left side of the aforementioned staple foot bending tray 4; an labial pilot positioning plate take-up adjustment mechanism 7 is shown, with the labial pilot positioning plate take-up adjustment mechanism 7 being connected between the labial pilot positioning plate 6 and the staple pusher drive mechanism 5.

According to the physiological characteristics of the female labia, i.e., the labia minora, there is no need for cutting at the upper and lower junction of the two labia, i.e., the upper and lower ends, and thus there is one of the aforementioned staple-free notches 22 at each of the upper and lower portions (the position shown in fig. 1 and described below for example) of the staple pusher sleeve 2. Since the geometry of the female vaginal orifice is substantially elliptical, the left end of the push sleeve 2, the entire nail carrying plate 3, the staple leg bending plate 4 and the labia guiding and positioning plate 6 are designed to be elliptical, and the nail carrying plate 3 is not provided with the nail carrying hole 31 at the position corresponding to the no-push-staple notch 22, and the staple leg bending plate 4 is not provided with the staple leg recess 41 at the position corresponding to the no-push-staple notch 22.

In use, the staple 311 having a substantially U-shape or 冂 -shape is required to be placed in the staple loading hole 31, and when the staple 311 is pushed out of the staple loading hole 31 by the staple pusher 21, the legs of the staple 311 are bent by the leg bending pits 41 to form a leg bending condition as in the case of a staple in the office appliance category seen in daily life. The function of the aforementioned staples 311 is to perform preoperative suturing of the labia 9 (labia minora, hereinafter referred to as "labia minora") illustrated in fig. 4 to 5.

With continued reference to fig. 1 and with reference to fig. 3, a nail-carrying bin positioning flange hole 12 is respectively formed on the front side and the rear side of the left end of the nail-pushing sleeve protecting case 1, the nail-carrying bin positioning flange hole 12 penetrates through the cavity wall of the nail-pushing sleeve accommodating cavity 11, a handle connecting seat connector coupling sleeve 13 extends from the right end of the nail-pushing sleeve protecting case 1, and a handle connecting seat connector coupling sleeve cavity 131 of the handle connecting seat connector coupling sleeve 13 is communicated with the nail-pushing sleeve accommodating cavity 11; a sliding sleeve pushing seat 23 extends from the right end of the nail pushing sleeve 2, and the sliding sleeve pushing seat 23 is in sliding fit with the handle connecting seat connector matching sleeve cavity 131; a cartridge positioning flange 32 protruding from the outer wall surface of the cartridge 3 is formed on the outer wall of the cartridge 3 at a position corresponding to the cartridge positioning flange hole 12, and the cartridge positioning flange 32 is fitted into the cartridge positioning flange hole 12 to position the cartridge 3 in the oval cavity at the left end of the push sleeve 2; a wound anti-adhesion nail pad 8 with the same shape as the nail carrying disc 3 is arranged between the right side corresponding to the stitch nail foot bending disc 4 and the left side of the nail carrying disc 3; the nail pushing sleeve driving mechanism 5 is connected with the handle connecting seat connector matching sleeve 13 and corresponds to the right end face of the sliding sleeve pushing seat 23; an labial guide and positioning plate cavity divider plate 61 is formed in the middle of the aforementioned labial guide and positioning plate 6 and parallel to the longitudinal direction of the labial guide and positioning plate 6, and a first labial guide cavity I62 and a second labial guide cavity II 63 (shown in FIG. 3) are partitioned by the labial guide and positioning plate cavity divider plate 61 on the labial guide and positioning plate 6; the above-mentioned labial guide and positioning plate tightening adjustment mechanism 7 is connected to the above-mentioned labial guide and positioning plate cavity divider plate 61.

Referring to fig. 3, the first and second labial guide cavities i 62 and ii 63 are shown in detail in fig. 3, and when performing the incision on the labia 9, the two labia 9 pass through the first and second labial guide cavities i 62 and ii 63 from the left side of the labial guide positioning plate 6, respectively, so that the two labia 9 are folded out.

With continued reference to fig. 1 and with reference to fig. 3, a pair of handle-holder-connector-block holes 1311 are formed in the wall of the handle-holder-connector-coupling-sleeve cavity 131 of the handle-holder-connector-coupling sleeve 13 of the push-pin sleeve housing 1, the pair of handle connecting seat connector block holes 1311 are spaced apart from each other by 180 ° around the circumferential direction of the cavity wall of the handle connecting seat connector fitting sleeve cavity 131; a sliding sleeve pushing seat hole 231 is formed in the center of the sliding sleeve pushing seat 23 of the nail pushing sleeve 2; a staple leg bending plate limiting column hole 33 penetrating from the left side to the right side of the staple carrying plate 3 is formed in the upper part and the lower part of the staple carrying plate 3; a staple leg bending tray limiting column 42 is formed at the right side of the upper and lower parts of the staple leg bending tray 4 and at positions corresponding to the staple leg bending tray limiting column holes 33; a limiting column avoiding concave cavity 82 which is sunken towards the direction of a nail pad cavity 81 of the wound anti-adhesion nail pad 8 is formed at the upper part and the lower part of the wound anti-adhesion nail pad 8 and at the position corresponding to the position of the limiting column 42 of the stitch nail foot bending disc; the nail pushing sleeve driving mechanism 5 is connected with the handle connecting seat connector matching sleeve 13 at a position corresponding to the handle connecting seat connector clamping block hole 1311; as shown in fig. 3, a partition plate extension plate 611 is extended on the right side of the labia guiding and positioning plate cavity partition plate 61 of the labia guiding and positioning plate 6, and a push plate driving screw connection post 6111 is extended on the right end of the partition plate extension plate 611, and the push plate driving screw connection post 6111 is slidably engaged with the slide sleeve push seat hole 231; the labia guiding and positioning plate tightening adjustment mechanism 7 is connected to the push plate driving screw connection post 6111.

An labial guide and positioning plate rotation preventing flange 43 is formed at each of the upper left and lower parts of the aforementioned staple leg bending tray 4, and an labial guide and positioning plate rotation preventing flange engaging hole 64 is formed at each of the upper right and lower parts of the aforementioned labial guide and positioning plate 6 at a position corresponding to the labial guide and positioning plate rotation preventing flange 43, and the labial guide and positioning plate rotation preventing flange engaging hole 64 is a blind hole and is engaged with the labial guide and positioning plate rotation preventing flange 43. Equivalent substitutions should be considered if the aforementioned blind holes are changed to through holes.

With continued reference to fig. 1, a wound anti-blocking nail pad positioning flange hole 34 is formed at the upper and lower portions of the nail carrying tray 3 at a position accompanying with, i.e., close to, the nail leg bending tray stopper hole 33, and a wound anti-blocking nail pad positioning flange 83 is formed at the right upper and lower portions of the wound anti-blocking nail pad 8 at positions corresponding to the wound anti-blocking nail pad positioning flange hole 34, and the wound anti-blocking nail pad positioning flange 83 is engaged with the wound anti-blocking nail pad positioning flange hole 34.

In this embodiment, the wound anti-adhesion nail pad 8 is made of a non-metal compliant material, and the non-metal compliant material is rubber, and the rubber is medical rubber such as medical silicone rubber. But medical non-toxic grade plastics may also be used as compliant materials. Since the function of the wound anti-adhesion nail pad 8 can be seen as the nail pad mentioned in ZL201410099460.4, the description thereof will be omitted.

With continued reference to fig. 1, the aforementioned push pin bushing driving mechanism 5 includes a handle connecting seat 51, a slide sleeve 52, a pair of handles 53, a pair of connecting pieces 54 and a safety pin 55, the handle connecting seat 51 is formed with a handle connecting seat cavity 511 penetrating from the left end to the right end of the handle connecting seat 51, and a handle connecting seat connector 512 is extended at the left end of the handle connecting seat 51, the handle connecting seat connector 512 is inserted into the aforementioned handle connecting seat connector coupling bushing cavity 131, a pair of handle connecting seat connector clamping blocks 5121 are formed on the handle connecting seat connector 512 and at positions corresponding to the aforementioned pair of handle connecting seat connector clamping block holes 1311, The pair of handle holder connector blocks 5121 are engaged with the pair of handle holder connector block holes 1311, a pair of elastic piece defining seats 513 are extended at the right end of the handle holder 51, the pair of elastic piece defining seats 513 are formed in a face-to-face relationship with each other, a space between the pair of elastic piece defining seats 513 is formed as an elastic piece defining seat giving-up groove 5131, a pair of elastic piece engaging grooves 5132 are respectively formed at opposite sides of the pair of elastic piece defining seats 513, a pair of connecting piece moving grooves 514 are formed at the middle part of the handle holder 51 in parallel with the length direction of the handle holder 51, the pair of connecting piece moving grooves 514 are formed in a face-to-face positional relationship with each other, The handle connecting seat cavity 511 is communicated with the outside by the pair of connecting piece movable grooves 514, a handle connecting seat safety pin hole 515 is formed at one side of the left end of the handle connecting seat 51 facing upwards, a handle left end hinge seat 516 is respectively extended at the front and rear sides of the left end of the handle connecting seat 51, a sliding sleeve 52 is slidingly arranged in the handle connecting seat cavity 511, a sliding sleeve left end face 524 of the sliding sleeve 52 corresponds to the right end face of the sliding sleeve push seat 23, a sliding sleeve safety pin hole 521 is formed at the middle part of the sliding sleeve 52 and at the position corresponding to the handle connecting seat safety pin hole 515, a pair of sliding sleeve guide blocks 522 are formed at the right end of the sliding sleeve 52 and at the position corresponding to the pair of connecting piece movable grooves 514, When the sliding sleeve 52 is installed in the handle connecting seat cavity 511, a pair of sliding sleeve guide blocks 522 enter the handle connecting seat cavity 511 from the corresponding positions of the elastic sheet limiting seat abdicating grooves 5131, the sliding sleeve guide blocks 522 are in sliding fit with the cavity wall of the handle connecting seat cavity 511, a sliding sleeve screw abdicating hole 523 penetrating from the left end to the right end of the sliding sleeve 52 is formed in the central position of the sliding sleeve 52, the left ends of the pair of handles 53 are respectively hinged with the handle left end hinging seats 516 through handle left end hinging pins 531, a handle connecting piece hinging seat 532 is respectively formed in the middle parts of the pair of handles 53 and at the corresponding positions on opposite sides, The right ends of the pair of handles 53 are configured as free ends, one ends of the pair of coupling pieces 54 toward the pair of slide guide blocks 522 are respectively hinged to the pair of slide guide blocks 522 by means of the coupling piece first pin shafts i 541, and one ends of the pair of coupling pieces 54 toward the pair of handles 53 are routed out of the handle coupling seat cavities 511 through the pair of coupling piece movable grooves 514 and are respectively hinged to the aforementioned handle coupling piece hinge seats 532 by means of the coupling piece second pin shafts ii 542, and the safety pins 55 are sequentially inserted into the handle coupling seat safety pin holes 515 and the slide safety pin holes 521.

As shown in fig. 1, a set of push plate driving screw connection post guide stepped grooves 2311 (four in this embodiment) are formed in a spaced state on the wall of the slide sleeve push seat hole 231 of the slide sleeve push seat 23, and a set of guide stepped grooves 61111 are formed on the outer wall of the push plate driving screw connection post 6111 at positions corresponding to the set of push plate driving screw connection post guide stepped grooves 2311, the set of guide stepped grooves 61111 being slidably fitted with the set of push plate driving screw connection post guide stepped grooves 2311; the labia guiding and positioning plate tightening adjustment mechanism 7 is connected to the right end of the handle connecting base 51.

With continued reference to fig. 1 and 3, the aforementioned labia guiding and positioning plate tightening adjustment mechanism 7 includes a push plate drive screw 71, an adjustment knob 72 and a transition connector 73, wherein the left end of the push plate drive screw 71 is fixedly connected with the aforementioned push plate drive screw connection post 6111, while the right end of the push plate drive screw 71 is connected with the rotatable adjustment knob 72 after passing through the aforementioned slide bushing seat hole 231, the slide bushing screw abdicating hole 523 and the transition connector 73 in order, a transition connector receiving cavity 721 is formed at the central position on the left side of the adjustment knob 72, the transition connector 73 is disposed in the transition connector receiving cavity 721 and a pair of transition connector hooks 731 is extended on the left side of the transition connector 73, and the pair of transition connector hooks 731 are hooked into the aforementioned pair of linking piece movable grooves 514. Preferably, when the labia guiding and positioning plate 6 is formed of plastic (medical plastic), the left end of the push plate driving screw 71 is fixed to the push plate driving screw connecting post 6111, that is, the left end of the push plate driving screw 71 is wrapped (enveloped) and fixed by the push plate driving screw connecting post 6111.

As shown in fig. 1, spring piece holes 722 (four in this embodiment) are formed on the left side of the adjusting knob 72 and around the circumference of the cavity wall of the transitional joint accommodating cavity 721 at intervals, spring pieces 7221 (four in this embodiment) are formed at positions corresponding to the spring piece holes 722, the spring pieces 7221 are forced to be held on the outer wall of the transitional joint 73, a push plate driving screw central hole 723 communicating with the transitional joint accommodating cavity 721 is formed at the central position of the adjusting knob 72, a push plate driving screw nut 7231 is embedded at positions corresponding to the right end of the push plate driving screw central hole 723, a transitional joint central hole 732 is formed at the central position of the transitional joint 73, screw external threads 711 are formed at the right end of the push plate driving screw 71, and the right end of the push plate driving screw 71 is screwed with the push plate driving screw nut 7231 after passing through the transitional joint central hole 732 and the push plate driving screw central hole 723.

Preferably, a spring end limiting flange 733 is formed on the outer wall of the transition connector 73, and the end of the spring 7221 abuts against the spring end limiting flange 733.

Referring to fig. 2 in combination with fig. 1, fig. 2 shows the assembled state from the disassembled state of the components of fig. 1, in which the pair of handles 53 cannot move the sliding sleeve 52 by the pair of connecting pieces 54 because the aforementioned safety pin 55 is inserted into the handle connecting seat safety pin hole 515 and the sliding sleeve safety pin hole 521, and the sliding sleeve left end surface 524 of the sliding sleeve 52 does not act on the right end surface of the sliding sleeve pushing seat 23. The entire labial suture cutter is in a non-activated state and is disposed within the sterilized package.

Referring to fig. 4 to 6, before an operation, the push plate driving screw 71 is extended leftward together with the labia guiding and positioning plate 6 by adjusting the adjusting knob 72, and then one of the two labia 9 of the subject is led to the right side from the left side of the labia guiding and positioning plate 6 through the first labia guiding cavity i 62 by the operator, while the other labia 9 is led to the right side from the left side of the labia guiding and positioning plate 6 through the second labia guiding cavity ii 63, the state of which is schematically shown in fig. 4. Then, by adjusting the adjustment knob 72, the push plate driving screw 71 is moved rightward together with the labia guiding and positioning plate 6, the labia 9 is brought into a state regulated between the right side of the wound anti-adhesion nail pad 8 and the left side of the nail bending plate 4, the surgeon pulls out the safety pin 55 and pinches the free ends (right ends as illustrated) of the pair of handles 53 in the opposite directions, at this time, the pair of handles 53 drive the slide bush 52 to move leftward by the pair of connecting pieces 54, the slide bush 52 pushes and pushes the slide bush pushing seat 23, the nail pushing claw 21 displaces the nail pushing sleeve 2 leftward, the nail 311 in the nail loading hole 31 is ejected, the incision part to be cut is first stitched by the nail 311, and the pair of nail feet of the nail 311 are folded at the position of the nail bending pit 41, the state is shown in fig. 5. Then, the doctor cuts the enlarged labia 9 to be cut out of the area to be sewn with the cutter 10 provided in the package according to the present invention, and the incision 91 has an excellent effect of regulating the operation, and the bleeding amount of the operator is small or even very small in the operation, since the suture is performed before the cutting is performed. After the excision is completed, the adjustment knob 72 is again adjusted to release the suture site and withdraw the labial suture cutter according to the present invention, the state of which is shown in fig. 6. Since the labial suture cutter is disposable, it should be disposed of as medical waste when discarded.

In summary, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the task of the invention, and faithfully honors the technical effects carried by the applicant in the technical effect column above.

Claims

1. The labia suture cutter is characterized by comprising a nail pushing sleeve protecting shell (1), wherein the nail pushing sleeve protecting shell (1) is provided with a nail pushing sleeve accommodating cavity (11) and the left end of the nail pushing sleeve protecting shell (1) is elliptical; the nail pushing sleeve (2) is in sliding fit with the nail pushing sleeve accommodating cavity (11) of the nail pushing sleeve protecting shell (1), the left end of the nail pushing sleeve (2) is also elliptical, nail pushing claws (21) are respectively extended in the front and back of the left end face of the nail pushing sleeve (2) at equal distance intervals, and no nail pushing claw notch (22) is respectively formed between the front nail pushing claw (21) of the left end face and the upper part and the lower part of the rear nail pushing claw (21) of the left end face; a nail carrying disc (3), the nail carrying disc (3) is elliptical in shape and is arranged in the nail pushing sleeve accommodating cavity (11) at a position corresponding to the left side of the nail pushing sleeve (2) and is fixed with the cavity wall of the nail pushing sleeve accommodating cavity (11), nail carrying holes (31) which are equal to the nail pushing claws (21) in number and are used for accommodating the staples are formed in the nail carrying disc (3) at the position corresponding to the nail pushing claws (21), and the nail carrying holes (31) penetrate from the right side to the left side of the nail carrying disc (3); a staple leg bending plate (4) having the same shape as the staple carrying plate (3), wherein the staple leg bending plate (4) is matched with the staple carrying plate (3) at a position corresponding to the left side of the staple carrying plate (3), and bent staple leg pits (41) with the same number as the staple carrying holes (31) are formed at the left side of the staple leg bending plate (4) and at a position corresponding to the staple carrying holes (31); the nail pushing sleeve driving mechanism (5) is connected with the right end of the nail pushing sleeve protective shell (1) and corresponds to the right end face of the nail pushing sleeve (2); an labia guiding and positioning plate (6) with the same outline shape as the stitch foot bending plate (4), wherein the labia guiding and positioning plate (6) is positioned at the left side of the stitch foot bending plate (4); an labia guiding and positioning plate tightening and adjusting mechanism (7), wherein the labia guiding and positioning plate tightening and adjusting mechanism (7) is connected between the labia guiding and positioning plate (6) and the nail pushing sleeve driving mechanism (5).

2. The labial suture cutter according to claim 1, wherein a cartridge positioning flange hole (12) is respectively formed on the front side and the rear side of the left end of the staple pushing sleeve protecting case (1), the cartridge positioning flange hole (12) penetrates through the cavity wall of the staple pushing sleeve accommodating cavity (11), a handle connecting seat connector adapter sleeve (13) extends at the right end of the staple pushing sleeve protecting case (1), and a handle connecting seat connector adapter sleeve cavity (131) of the handle connecting seat connector adapter sleeve (13) is communicated with the staple pushing sleeve accommodating cavity (11); a sliding sleeve pushing seat (23) extends at the right end of the nail pushing sleeve (2), and the sliding sleeve pushing seat (23) is in sliding fit with the handle connecting seat connector matching sleeve cavity (131); a cartridge positioning flange (32) protruding from the outer wall surface of the cartridge tray (3) is formed on the outer wall of the cartridge tray (3) at a position corresponding to the cartridge positioning flange hole (12), and the cartridge positioning flange (32) is embedded with the cartridge positioning flange hole (12); a wound anti-adhesion nail pad (8) with the same shape as the nail carrying disc (3) is arranged between the right side corresponding to the nail foot bending disc (4) and the left side of the nail carrying disc (3); the nail pushing sleeve driving mechanism (5) is connected with the handle connecting seat connector matching sleeve (13) and corresponds to the right end face of the sliding sleeve pushing seat (23); an labia guiding and positioning plate cavity separation plate (61) is formed in the middle part of the labia guiding and positioning plate (6) and is parallel to the long side direction of the labia guiding and positioning plate (6), and a first labia guiding cavity I (62) and a second labia guiding cavity II (63) are separated on the labia guiding and positioning plate (6) by the labia guiding and positioning plate cavity separation plate (61); the labia guiding and positioning plate tightening and adjusting mechanism (7) is connected with the labia guiding and positioning plate cavity separation plate (61).

3. The labial suture cutter as claimed in claim 2, wherein a pair of handle-connecting-seat-connector-clamping-block holes (1311) are formed in the cavity wall of the handle-connecting-seat-connector-fitting-sleeve cavity (131) of the handle-connecting-seat-connector-fitting sleeve (13) of the push-pin sleeve cover (1), the pair of handle connecting seat connector clamping block holes (1311) are mutually separated by 180 degrees around the circumferential direction of the cavity wall of the handle connecting seat connector matching sleeve cavity (131); a sliding sleeve pushing seat hole (231) is formed in the center of the sliding sleeve pushing seat (23) of the nail pushing sleeve (2); the upper part and the lower part of the nail carrying disc (3) are respectively provided with a stitch nail foot bending disc limit column hole (33) which penetrates from the left side to the right side of the nail carrying disc (3); a staple foot bending plate limiting column (42) is respectively formed at the right sides of the upper part and the lower part of the staple foot bending plate (4) and at the positions corresponding to the staple foot bending plate limiting column holes (33); a limiting column avoiding concave cavity (82) which is sunken towards the direction of a nail pad cavity (81) of the wound anti-adhesion nail pad (8) is respectively formed at the upper part and the lower part of the wound anti-adhesion nail pad (8) and at the position corresponding to the limiting column (42) of the stitch nail foot bending disc; the nail pushing sleeve driving mechanism (5) is connected with the handle connecting seat connector matching sleeve (13) at a position corresponding to the handle connecting seat connector clamping block hole (1311); a partition plate extending plate (611) extends on the right side of the labia guiding and positioning plate cavity partition plate (61) of the labia guiding and positioning plate (6), and a push plate driving screw connecting column (6111) extends on the right end of the partition plate extending plate (611), and the push plate driving screw connecting column (6111) is in sliding fit with the sliding sleeve pushing seat hole (231); the labia guiding positioning plate tightening and adjusting mechanism (7) is connected with the push plate driving screw connecting column (6111).

4. A labial suture cutter according to claim 3, wherein an labial guide positioning plate rotation prevention flange (43) is formed at each of the upper left and lower portions of said staple foot bending tray (4), and an labial guide positioning plate rotation prevention flange engagement hole (64) is formed at each of the upper right and lower portions of said labial guide positioning plate (6) at a position corresponding to the labial guide positioning plate rotation prevention flange (43), the labial guide positioning plate rotation prevention flange engagement hole (64) being a blind hole or a through hole and being engaged with the labial guide positioning plate rotation prevention flange (43).

5. A labial stapling cutter according to claim 3, wherein a wound anti-adhesion staple pad positioning flange hole (34) is formed in the upper and lower portions of the staple carrying tray (3) at a position accompanying the staple foot bending tray stopper hole (33), and a wound anti-adhesion staple pad positioning flange (83) is formed in the upper and lower right portions of the wound anti-adhesion staple pad (8) at positions corresponding to the wound anti-adhesion staple pad positioning flange hole (34), the wound anti-adhesion staple pad positioning flange (83) being fitted with the wound anti-adhesion staple pad positioning flange hole (34).

6. The labial suture cutter according to claim 2,3 or 5, wherein said wound anti-adhesion staple pad (8) is a non-metallic compliant material, which is a plastic or rubber, said plastic being a medical non-toxic grade plastic, and said rubber being a medical rubber.

7. The labial suture cutter according to claim 3, wherein the push pin bushing driving mechanism (5) comprises a handle connecting base (51), a slide sleeve (52), a pair of handles (53), a pair of connecting pieces (54) and a safety pin (55), the handle connecting base (51) is formed with a handle connecting base cavity (511) penetrating from the left end to the right end of the handle connecting base (51), and a handle connecting base connector (512) extending from the left end of the handle connecting base (51), the handle connecting base connector (512) is inserted into the handle connecting base connector coupling sleeve cavity (131), a pair of handle connecting base connector blocks (5121) are formed on the handle connecting base connector (512) and at positions corresponding to the pair of handle connecting base connector block holes (1311), The pair of handle seat connector clamping blocks (5121) are clamped with the pair of handle seat connector clamping block holes (1311), a pair of elastic piece limiting seats (513) extend at the right end of the handle connecting seat (51), the pair of elastic piece limiting seats (513) are in face-to-face relation, a space between the pair of elastic piece limiting seats (513) is formed into an elastic piece limiting seat yielding groove (5131), one side of the pair of elastic piece limiting seats (513) opposite to each other is respectively formed into an elastic piece clamping groove (5132), a pair of connecting piece movable grooves (514) are formed in the middle part of the handle connecting seat (51) in a direction parallel to the length direction of the handle connecting seat (51), The pair of connecting piece movable grooves (514) are in face-to-face position relation with each other, the handle connecting seat cavity (511) is communicated with the outside through the pair of connecting piece movable grooves (514), a handle connecting seat safety pin hole (515) is formed on one side of the left end of the handle connecting seat (51) facing upwards, a handle left end hinge seat (516) is respectively extended on the front side and the rear side of the left end of the handle connecting seat (51), a sliding sleeve (52) is slidingly arranged in the handle connecting seat cavity (511), the left end face (524) of the sliding sleeve (52) corresponds to the right end face of the sliding sleeve pushing seat (23), A sliding sleeve safety pin hole (521) is arranged in the middle of the sliding sleeve (52) and at a position corresponding to the handle connecting seat safety pin hole (515), a pair of sliding sleeve guide blocks (522) are formed at the right end of the sliding sleeve (52) and at a position corresponding to a pair of connecting piece movable grooves (514), the sliding sleeve guide blocks (522) are in sliding fit with the cavity wall of the handle connecting seat cavity (511), a sliding sleeve screw yielding hole (523) penetrating from the left end to the right end of the sliding sleeve (52) is arranged at the central position of the sliding sleeve (52), the left ends of the pair of handles (53) are respectively hinged with the handle left end hinging seat (516) through handle left end hinging pins (531), A handle connecting piece hinging seat (532) is respectively formed at the middle part of the pair of handles (53) and at the corresponding position of the opposite side, the right end of the pair of handles (53) is formed as a free end, one end of the pair of connecting pieces (54) facing the pair of sliding sleeve guide blocks (522) is respectively hinged with the pair of sliding sleeve guide blocks (522) through a connecting piece first pin shaft I (541), one end of the pair of connecting pieces (54) facing the pair of handles (53) is extended out of the handle connecting seat cavity (511) through a pair of connecting piece movable grooves (514) and is respectively hinged with the handle connecting piece hinging seat (532) through a connecting piece second pin shaft II (542), The safety pin (55) is sequentially inserted into the safety pin hole (515) of the handle connecting seat and the safety pin hole (521) of the sliding sleeve; A group of push plate driving screw connecting column guide step grooves (2311) are formed on the hole wall of the slide sleeve pushing seat hole (231) of the slide sleeve pushing seat (23) at intervals, a group of guide steps (61111) are formed on the outer wall of the push plate driving screw connecting column (6111) and at positions corresponding to the group of push plate driving screw connecting column guide step grooves (2311), and the group of guide steps (61111) are in sliding fit with the group of push plate driving screw connecting column guide step grooves (2311); the labia guiding and positioning plate tightening and adjusting mechanism (7) is connected with the right end of the handle connecting seat (51).

8. The labial suture cutter according to claim 7, wherein said labial guide positioning plate tightening adjustment mechanism (7) includes a push plate drive screw (71), an adjustment knob (72) and a transition connector (73), a left end of the push plate drive screw (71) is fixedly connected to said push plate drive screw connecting post (6111), and a right end of the push plate drive screw (71) is connected to the adjustment knob (72) after passing through said slide push seat hole (231), the slide screw relief hole (523) and the transition connector (73) in order, a transition connector receiving chamber (721) is formed at a central position on a left side of the adjustment knob (72), the transition connector (73) is disposed in the transition connector receiving chamber (721) and a pair of transition connector hooking pins (731) is extended on a left side of the transition connector (73), the pair of transition connector hooking pins (731) are hooked into said pair of link piece moving grooves (514).

9. The labial suture cutter according to claim 8, wherein a spring hole (722) is formed on the left side of the adjusting knob (72) and around the circumference of the cavity wall of the transition joint accommodating cavity (721) at intervals, a spring piece (7221) is formed at a position corresponding to the spring piece hole (722), the spring piece (7221) is forced to be held on the outer wall of the transition joint (73), a push plate driving screw central hole (723) communicating with the transition joint accommodating cavity (721) is formed at the central position of the adjusting knob (72), a push plate driving screw nut (7231) is embedded at a position corresponding to the right end of the push plate driving screw central hole (723), a transition joint central hole (732) is formed at the central position of the transition joint (73), a screw external thread (711) is formed at the right end of the push plate driving screw (71), and the right end of the push plate driving screw (71) is screwed with the push plate driving screw nut (7231) after passing through the transition joint central hole (732) and the push plate driving screw central hole (723).

10. The labial suture cutter according to claim 9, wherein a dome end limit flange (733) is formed on an outer wall of the transition joint (73), and an end of the dome (7221) abuts against the dome end limit flange (733).