CN107569275B

CN107569275B - Turtle head seat and circumcision anastomat

Info

Publication number: CN107569275B
Application number: CN201610521877.4A
Authority: CN
Inventors: 陈望东; 单腾; 殷东林; 曹元阳
Original assignee: Suzhou Tianchen International Medical Technology Co Ltd
Current assignee: Suzhou Tianchen International Medical Technology Co Ltd
Priority date: 2016-07-05
Filing date: 2016-07-05
Publication date: 2020-07-31
Anticipated expiration: 2036-07-05
Also published as: CN107569275A

Abstract

The invention discloses a glans penis seat and a circumcision anastomat, wherein the glans penis seat comprises a glans penis cavity for accommodating glans penis and an annular edge arranged around an opening of the glans penis cavity, a groove body for accommodating a lacing is formed on one side of the annular edge, which is far away from the glans penis cavity, and the groove body extends along the direction from the near end to the far end of the circumcision anastomat. The invention has the beneficial effects that: because the groove body is arranged at the annular edge, the frenulum just falls into the groove body in the process of stretching the foreskin towards the near end, and thus, the automatic protection of the frenulum is realized.

Description

Turtle head seat and circumcision anastomat

Technical Field

The invention relates to medical equipment, in particular to a glans penis seat and a circumcision anastomat.

Background

The prepuce is too long and phimosis is a common reproduction problem for men. With the continuous improvement of living standard and health consciousness of people, higher requirements are put forward on self reproductive health. The redundant prepuce is easy to store dirt and dirt, and if the prepuce is not cleaned in time, the inflammation of glans prepuce and the penile inflammation can be caused, the normal couple life is influenced, the chances of the sexual complicated with the cervicitis and the cervical cancer are increased, and various problems such as the penile cancer, the sterility and the premature ejaculation can be caused. Circumcision is an effective method for treating redundant prepuce and phimosis. A great deal of research in the last decade shows that the male circumcision has great significance for reducing the skin infection and the urinary tract infection of the male penis, reducing the incidence rate of balanitis and the like of the adult male, reducing the incidence rate of vaginal infection and cervical cancer of a partner thereof, and even preventing sexually transmitted diseases including AIDS, tumors of a reproductive system and the like.

Currently, manual circumcision and circumcision anastomat methods are generally adopted for treating the redundant prepuce. Generally, the distal end of the circumcision anastomat is provided with a glans penis seat, the glans penis is placed in a glans penis cavity at the distal end of the glans penis seat, and then the overlong foreskin is stretched towards the proximal end and fixed at the proximal end of the glans penis seat, so that the subsequent cutting and suturing operations are performed. Because the frenulum is connected between the glans penis and the foreskin, the frenulum is easily damaged in the process of stretching, cutting and sewing the foreskin, and further injury is caused. In the prior art, the position of the lace is usually controlled by a manual operation method of a doctor so as to achieve the purpose of protecting the lace, but the method is related to the professional skill of the doctor and can increase the operation difficulty to a certain extent.

Disclosure of Invention

The invention aims to provide a balanus seat and a circumcision anastomat, and solves the problem that a lace cannot be automatically protected at present.

In order to achieve one of the above objects, an embodiment of the present invention provides a balanus for a circumcision stapler, the glans base comprises a glans cavity for accommodating glans and an annular edge arranged around the opening of the glans cavity, a cavity or a mounting surface for accommodating the nail anvil is formed at the proximal end of the balanus cavity, a groove body for accommodating the frenum is formed at one side of the annular edge far away from the balanus cavity, the trough body extends along the direction from the near end of the circumcision anastomat to the far end, the annular edge comprises annular edge bodies which are connected with each other and an extension part which is positioned at the near end of the annular edge bodies, the trough body extends from the opening of the glans penis to the near end of the extension part, and in the direction from the near end of the circumcision anastomat to the far end, the distance from the nearest end of the extension part to the end surface of the near end of the nail anvil is greater than the distance from the near end of the annular edge body to the end surface of the near end.

As a further improvement of an embodiment of the present invention, the extension portion is symmetrical along a central line thereof, the central line extends along an extension direction of the tank body, a width of the extension portion along the extension direction of the tank body is a gradually-changing width, the width reaches a maximum value at a position of the central line, and the tank body is located at the central line.

As a further improvement of an embodiment of the present invention, the extension connects to a portion of the proximal end surface of the annular rim body, and the proximal end surface of the extension and the proximal end surface of the annular rim body are smoothly transitioned.

As a further improvement of an embodiment of the present invention, the annular rim body and the extension portion are integrally formed.

In order to achieve one of the above objects, an embodiment of the present invention provides a circumcision anastomat, comprising a nail barrel; the nail box is positioned in the nail barrel, and the outer wall of the nail box comprises a protruding part which is exposed out of the nail barrel; and the glans penis seat according to any technical scheme.

As a further improvement of one embodiment of the invention, the side of the protruding part close to the nail barrel is in a conical structure, and the outer diameter of the protruding part is gradually increased from the far end to the near end.

As a further improvement of one embodiment of the invention, the protruding part and the nail barrel are fixed with each other.

In order to achieve one of the above objects, an embodiment of the present invention provides a circumcision anastomat, comprising the glans penis seat according to any one of the above technical solutions; the nail anvil is arranged at the near end of the balanus seat; the nail anvil is positioned on one side of the annular edge close to the balanus cavity, and the proximal end face of the extension part is positioned at the proximal end of the proximal end face of the nail anvil.

As a further improvement of one embodiment of the invention, the inner side surface of the extension part close to the balanus cavity and the end surface of the near end of the anvil are in smooth transition.

Compared with the prior art, the invention has the beneficial effects that: because the groove body is arranged at the annular edge, the frenulum just falls into the groove body in the process of stretching the foreskin towards the near end, and thus, the automatic protection of the frenulum is realized.

Drawings

FIG. 1 is a perspective view of a circumcision stapler in accordance with one embodiment of the present invention;

FIG. 2 is an exploded view of a circumcision stapler in accordance with one embodiment of the present invention;

FIG. 3 is an exploded view of a portion of the staple cartridge assembly of one embodiment of the present invention;

FIG. 4 is a schematic view of a structure of a sub-sheet according to a first embodiment of the present invention;

FIG. 5 is a schematic view of a second embodiment of the present invention;

FIG. 6a is a schematic view of a third embodiment of a sub-sheet with a first viewing angle;

FIG. 6b is a schematic view of a second perspective structure of a sub-sheet according to a third embodiment of the present invention;

FIG. 7a is a schematic view of a sub-panel of a fourth embodiment of the present invention from a first perspective;

FIG. 7b is a schematic view of a second perspective view of a sub-panel according to a fourth embodiment of the present invention;

FIG. 8a is a view of the combination of the seat and anvil assembly of the first embodiment of the present invention;

FIG. 8b is an exploded view of the seat and anvil assembly of the first embodiment of the present invention;

FIG. 8c is a cross-sectional view A1-A1 of FIG. 8 a;

FIG. 8d is a partial enlarged view of FIG. 8 c;

FIG. 9a is a view of the assembled seat and anvil assembly of the second embodiment of the present invention;

FIG. 9b is an exploded view of the seat and anvil assembly of the second embodiment of the present invention;

FIG. 9c is a cross-sectional view A2-A2 of FIG. 9 a;

FIG. 9d is a partial enlarged view of FIG. 9 c;

FIG. 9e is an enlarged partial view of the cross-sectional view B2-B2 of FIG. 9 a;

FIG. 10 is an exploded view of a third embodiment of the turtle head seat and anvil assembly of the present invention;

FIG. 11 is a schematic view of the glans penis structure according to an embodiment of the present invention;

FIG. 12 is a diagram of a glans base and anvil assembly in accordance with one embodiment of the present invention;

FIG. 13 is a cross-sectional view A3-A3 of FIG. 11;

FIG. 14 is an enlarged partial view of FIG. 13;

FIG. 15 is a combination view of a staple cartridge, staple cartridge and balanus seat in accordance with one embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

The words used in this invention to convey position and orientation are all referenced by the operator of the instrument, with the end closer to the operator being the proximal end and the end further from the operator being the distal end.

In the embodiment of the present invention, the circumcision stapler is exemplified as the medical stapler of the present invention to be specifically explained, but it should be noted that the technical spirit involved in the embodiments described below may be alternatively utilized to other types of staplers.

As shown in fig. 1 and 2, in one embodiment of the present invention, a circumcision stapler is used to apply a plurality of staples to a tissue of a human body (herein, foreskin) while cutting an excess tissue accordingly.

The circumcision anastomat comprises a machine shell 10, a glans 20 and a firing handle 30, wherein the glans 20 is located at the far end of the machine shell 10, the firing handle is pivotally connected with the machine shell 10, and the glans 20 can move towards the near end or the far end relative to the machine shell 10.

The far end of the machine shell 10 is also provided with a nail bin assembly 40.

The nail cartridge assembly 40 comprises a nail cartridge 41, a nail barrel 42, a nail pushing sheet 43, an annular knife 44 and an anvil assembly 45, wherein the anvil assembly 45 is positioned in the tortoise head seat 20. Here, the annular knife 44 has a hollow annular shape, and the annular knife 44 may be a circular knife or a nearly circular knife, for example, an elliptical annular knife.

The nail barrel 42 is hollow and annular, the nail barrel 42 is connected with the far end of the machine shell 10 through a fixing ring (not marked), the nail barrel 42 is detachably connected with the nail bin 41, and the nail bin 41 is an annular nail bin. Likewise, the staple cartridge 42 may be a circular staple cartridge, an elliptical staple cartridge, or the like, and the staple cartridge 41 may be a circular staple cartridge, an elliptical staple cartridge, or the like.

The nail barrel 42 is provided with a nail pushing sheet 43 and a nail bin 41 positioned at the far end of the nail pushing sheet 43, the nail pushing sheet 43 is also internally provided with an annular knife 44, when the annular knife 44 is assembled at the nail pushing sheet 43, the far end face of the annular knife 44 protrudes out of the far end face of the nail pushing sheet 43, the nail bin 41 is provided with a plurality of nail outlet openings (not marked) matched with the nail pushing sheet 43 on the end face thereof, and a plurality of sewing nails are positioned at the nail outlet openings.

The anvil assembly 45 comprises an anvil 451 matched with a suturing nail and a knife anvil 452 matched with the annular knife 44, wherein the anvil 451 is an annular anvil, and the knife anvil 452 is an annular knife anvil. Likewise, the anvil 451 can be a circular anvil, an elliptical anvil, or the like, and the knife anvil 452 can be a circular knife anvil, an elliptical knife anvil, or the like.

The glans base 20 further includes a glans cavity 21 for accommodating the glans and an anvil shaft 22 located at a proximal end of the glans cavity 21. An annular cavity (not marked) is formed at the proximal end of the glans penis cavity 21, the knife anvil 452 and the anvil 451 are located in the cavity, or a mounting surface (not marked) may be formed at the proximal end of the glans penis seat 20, and the knife anvil 452 and the anvil 451 are disposed on the mounting surface. Likewise, the annular cavity of the glans 20 may be a circular cavity, an elliptical annular cavity, or the like.

The circumcision stapler further includes an adjusting knob 50 connected to the proximal end of the housing 10.

The adjusting knob 50 is movably connected to a proximal end of a screw rod 60 penetrating through the housing 10, and the adjusting knob 50 drives the screw rod 60 to reciprocate in the axial direction of the circumcision anastomat through threads arranged in the adjusting knob 50.

The distal end of the screw rod 60 is fixedly connected to the anvil shaft 22, so that when the anvil shaft 22 is connected to the screw rod 60, the adjusting knob 50 can be rotated clockwise or counterclockwise to drive the glans base 20 to move close to or away from the casing 10, thereby enabling the anvil assembly 45 and the staple cartridge 41 to clamp or release the target tissue.

The housing 10 includes a right housing 10a and a left housing 10b disposed corresponding to the right housing 10 a. In the following description, only the right casing 10a is described in detail, and the right casing 10b is referred to for the left casing 10 b.

The distal end of the right housing 10a is provided with a housing connecting portion 102a, so that the housing 10 can be connected to the cartridge 42 through a fixing ring.

The right shell 10a is provided with a firing handle mounting hole 104a, and the right shell 10a is pivotally connected with the pin hole 301 on the firing handle 30 through the firing handle mounting hole 104 a.

The firing handle 30 is further provided with a pushing member 302 extending to the inside of the casing 10, the inside of the casing 10 is provided with an ejector block 70, the proximal end surface of the ejector block 70 abuts against the extending end of the pushing member 302, and the distal end surface of the ejector block 70 abuts against the staple pushing sheet 43.

The top block 70 has an initial position and a firing position, when the firing handle 30 rotates relative to the housing 10, the pusher 302 drives the top block 70 to move from the initial position to the firing position, and the top block 70 drives the staple pusher 43 and the annular knife 44 to move for performing a cutting and stapling operation.

In the present embodiment, only one firing handle 30 is provided, and the pushing member 302 of the firing handle 30 abuts against the center of the proximal end surface of the top block 70, so that the top block 70 is uniformly stressed, but in other embodiments, two firing handles 30 may be symmetrically provided.

The top block 70 is provided with a safety block 80 in a matching manner, and the casing 10 is provided with a hole 101 for accommodating the safety block 80. When the safety block 80 is kept in the hole 101, the firing handle 30 cannot drive the top block 70 to move, and the top block 70 is at the initial position; when the safety block 80 is in the fired position, the safety block 80 disengages from the aperture 101 and the top block 70 is moved to its fired position by the firing handle 30.

The operation of the circumcision anastomat according to one embodiment of the invention is briefly described as follows:

in the present embodiment, the glans 20 is detachably connected to the distal end of the housing 10, and in the initial state, the glans 20 is in an openable state, and the target tissue (foreskin) to be operated can be placed between the nail bin 41 and the anvil assembly 45.

When the circumcision anastomat/nail bin assembly 40 is switched from the initial state to the closed state, the adjusting knob 50 is rotated, the screw rod 60 moves towards the near end under the action of the adjusting knob 50, the screw rod 60 drives the nail head seat 20 to move close to the machine shell 10 until the anvil assembly 45 and the nail bin 41 are closed, the target physiological tissue can be clamped between the nail head seat and the nail bin, and the nail pushing sheet 43 and the annular knife 44 do not move and are still located at the near end of the nail bin assembly 40.

When the circumcision anastomat/nail bin assembly 40 is switched from a closed state to a fired state, the anvil assembly 45 and the nail bin 41 are still kept closed, the driving safety block 80 is separated from the hole 101, the firing handle 30 is pressed to drive the ejection block 70 to move towards the far end, the ejection block 70 drives the nail pushing sheet 43 and the annular knife 44 to move from the near end to the far end of the nail bin assembly 40, and the annular knife 44 and the nail pushing sheet 43 cut and suture the clamped target physiological tissue and can be limited at the far end of the nail bin assembly 40 to stop moving.

When the circumcision anastomat/nail bin assembly 40 is switched from the firing state to the firing completion state, the firing handle 30 is released, the adjusting knob 50 is rotated in the opposite direction, the screw rod 60 drives the nail head seat 20 to move away from the machine shell 10, the nail pushing sheet 43 and the annular knife 44 return to the initial position, the anvil assembly 45 and the nail bin 41 are opened, and the cut and sutured target physiological tissues can be separated from the nail head seat 20 at the moment.

Referring to FIGS. 3 and 4, in one embodiment of the present invention, at least one sub-tab 90 is further disposed between the staple cartridge 41 and the anvil assembly 45, wherein the sub-tab 90 cooperates with staples (not shown).

The auxiliary sheet 90 comprises a plurality of nail forming parts 91 and a plurality of connecting parts 92, the nail forming parts 91 are used for puncturing suturing nails, the connecting parts 92 are located between the adjacent nail forming parts 91, and the nail forming parts 91 and the connecting parts 92 are enclosed to form a hollow annular structure.

Wherein, along the direction X from the center to the edge of the hollow ring-shaped structure, the elastic force of the connecting part 92 is greater than that of the nail forming part 91.

Here, the auxiliary sheet 90 is made of an elastic material capable of stopping bleeding, such as rubber, and the matching of the auxiliary sheet 90 and the suturing nail is utilized to improve the suture hemostasis effect; due to the addition of the auxiliary sheet 90, the covering of tissues on the suture nail can be prevented, and the nail-removing difficulty after the operation is reduced; the auxiliary sheet 90 has elasticity, can be naturally expanded during erection, and can relieve pain of post-operation erection; the elastic force of the connecting portion 92 of the auxiliary sheet 90 is greater than that of the nail forming portion 91, so that the overall deformable amount of the auxiliary sheet 90 is increased, the pain of post-operative erection is further reduced, and edema is reduced.

It should be noted that the thickness of the auxiliary tablet 90 is very small, approximately 0.5mm, so that the postoperative auxiliary tablet 90 is tightly attached to the affected part, and the comfort level of the daily activities of the patient is not affected by the remaining of the auxiliary tablet 90 on the affected part.

It is understood that the hollow ring-shaped structure surrounded by the plurality of nail-forming portions 91 and the plurality of connecting portions 92 may be a hollow ring-shaped structure, a hollow elliptical ring-shaped structure, and the like, where the direction X from the center to the edge substantially refers to the radial direction of the hollow ring-shaped structure when the hollow ring-shaped structure is the hollow ring-shaped structure, and the direction X from the center to the edge substantially refers to the direction from the origin to the edge of the hollow elliptical ring-shaped structure when the hollow ring-shaped structure is the hollow elliptical ring-shaped structure.

In this embodiment, the auxiliary plate 90 may be disposed at the distal end surface of the staple cartridge 41 and/or the proximal end surface of the anvil 451 through socket fastening or damping grease adhesion, on one hand, the auxiliary plate 90 may be limited at the distal end surface of the staple cartridge 41 and/or the proximal end surface of the anvil 451 in the initial state and the closed state of the circumcision stapler to prevent the auxiliary plate 90 from being displaced, and on the other hand, the auxiliary plate 90 may be conveniently separated from the distal end surface of the staple cartridge 41 and/or the proximal end surface of the anvil 451 in the firing state and the firing completion state of the circumcision stapler.

Here, when one of the flaps 90 is disposed at the distal end face of the magazine 41 or the proximal end face of the anvil 451, the postoperative flap 90 is only on one side of the foreskin, and the flap 90 performs the auxiliary hemostasis on the foreskin side; when the two auxiliary sheets 90 are respectively arranged at the far end face of the nail bin 41 and the near end face of the nail anvil 451, the two auxiliary sheets 90 after operation are distributed at two sides of the foreskin, and the two auxiliary sheets 90 clamp two layers of foreskin, so that the hemostatic effect is further improved. It should be noted that two or more flaps 90 may be included on one side of the wrapper, as the case may be.

In this embodiment, along the circumferential direction of the auxiliary sheet 90, the length of the connecting portion 92 is less than that of the staple forming portion 91, so that the staple forming portion 91 can still be matched with the suturing staples in a large area, and the arrangement of the suturing staples along the circumferential direction can still be dense, thereby ensuring the suturing and hemostatic effect of the suturing staples.

In the present embodiment, the auxiliary piece 90 may be formed by setting parameters such as material and thickness to make the elastic force of the connecting portion 92 greater than the elastic force of the nail forming portion 91, but the invention is not limited thereto.

For example, the connecting portion 92 of the auxiliary sheet 90 is formed with an opening 921, the auxiliary sheet 90 is deformed in the center-to-edge direction X of the hollow ring-shaped structure when the auxiliary sheet 90 is subjected to a force (erection), and the connecting portion 92 is deformed by an amount larger than that of the nail forming portion 91.

Alternatively, the sub-sheet 90 includes an inner ring edge 93 and an outer ring edge 94, the inner ring edge 93 and/or the outer ring edge 94 are wavy, and the inner ring edge 93 and the outer ring edge 94 are defined as edges along a direction X from the center to the edge of the sub-sheet 90. Here, the wavy structure is located at the connection portion 92.

The advantages of the above design are: the area of the auxiliary sheet 90 corresponding to the opening 921 or the recess of the wave-shaped structure is relatively small, and the elasticity of the position is relatively large on the premise of not influencing the hemostatic effect of suturing the suturing nail, so that the overall deformable quantity of the auxiliary sheet 90 is increased, the pain of post-operation erection is further reduced, and edema is reduced.

Similarly, the auxiliary piece 90 may be a hollow circular structure, a hollow elliptical circular structure, or the like, wherein when the hollow circular structure is a hollow circular structure, the direction X from the center to the edge substantially refers to the radial direction of the hollow circular structure, and when the hollow circular structure is a hollow elliptical circular structure, the direction X from the center to the edge substantially refers to the direction from the origin to the edge of the hollow elliptical circular structure.

Several embodiments of the sub-sheet 90 are described below.

Fig. 4 is a schematic view of an auxiliary sheet structure according to a first embodiment of the present invention. In the present embodiment, the connecting portion 92a of the auxiliary piece 90a has an opening 921a formed therein.

Specifically, the opening 921a is substantially a notch located at the inner ring edge 93a and the outer ring edge 94a, and the notch does not involve the staple forming portion 91 a.

Therefore, on one hand, the area of the nail forming part 91a is relatively large, the suturing nail has enough penetrating area, and the cut foreskin has enough hemostatic effect; on the other hand, the area of the connecting portion 92a is relatively small, the elastic force of the connecting portion 92a is greater than that of the nail forming portion 91a, and compared with the solution that the connecting portion 92a and the nail forming portion 91a are completely consistent (i.e. no notch is included), the present embodiment can effectively increase the overall deformable amount of the auxiliary sheet 90a during erection.

Fig. 5 is a schematic diagram of an auxiliary sheet structure according to a second embodiment of the present invention, which is similar to the first embodiment, and the same structure has the same function, and thus is not described herein again.

The present embodiment differs from the first embodiment described above in that: the opening 921b of this embodiment further includes a through hole 9212b located in a middle region of the plurality of notches 9211b, in addition to the notches 9211b located at the inner ring edge 93b and the outer ring edge 94b, and a peripheral portion of the through hole 9212b is a closed structure.

Here, the through hole 9212b functions to: (1) fitting the notch 9211b, the area of the connecting portion 92b is further reduced, thereby further increasing the amount of deformation of the auxiliary sheet 90b at the time of erection; (2) referring to fig. 3, a plurality of protruding columns 411 are formed on the distal end surface of the nail bin 41, and when the auxiliary piece 90b is disposed at the distal end surface of the nail bin 41, the auxiliary piece 90b can be positioned by the mutual matching of the plurality of protruding columns 411 and the plurality of through holes 9212b, so that the auxiliary piece 90b is prevented from shifting during the cutting and sewing process.

It should be noted that, when the auxiliary plate 90b is located at the proximal end face of the anvil 451, the auxiliary plate 90b may also be located with the proximal end face of the anvil 451 in a manner of matching the boss and the through hole, but not limited thereto.

As shown in fig. 6a and fig. 6b, which are schematic views of an auxiliary sheet structure according to a third embodiment of the present invention, the present embodiment is similar to the second embodiment, and the same structure has the same function, and is not repeated herein.

The present embodiment differs from the second embodiment described above in that: the thickness of the auxiliary piece 90c is changed along the staple piercing direction, and at least a part of the staple forming part 91c is thicker than the connecting part 92 c.

Specifically, in the staple puncturing direction, the auxiliary piece 90c includes a first surface 95c and a second surface 96c, and at least one of the first surface 95c and the second surface 96c is protruded with a plurality of protrusions 97c distributed at intervals.

In the present embodiment, taking the auxiliary piece 90c as an example located at the distal end surface of the staple cartridge 41, after the staples are formed at the staple forming part 91c, the surface close to the staple leg is defined as a first surface 95c, and the surface far from the staple leg is defined as a second surface 96 c.

Referring to fig. 6a and 6b, in the present embodiment, a plurality of protrusions 97c are formed at the first surface 95c, the protrusions 97c are located at the staple forming portion 91c, and the protrusions 97c are ribs.

The design has the advantages that: (1) under the condition of not influencing the whole elasticity of the auxiliary sheet 90c, the thickness of the auxiliary sheet 90c in the partial area is properly increased to enhance the strength of the auxiliary sheet 90c, thereby enhancing the hemostatic effect; (2) after the suturing nail is formed, a certain gap is formed between the nail crown and the first surface 95c due to the supporting effect of the protruding part 97c, so that the nail removing equipment can be directly inserted into the gap to cut and remove the nail when the nail is removed, the nail removing efficiency is improved, and the healing foreskin is prevented from being damaged by the nail removing equipment; (3) the bulge 97c between the formed leg and the crown is compressed by the pressure, which continuously applies pressure to the prepuce tissue sandwiched therebetween, accelerating the avascular necrosis thereof.

It should be noted that, the thickness of the partial area of the auxiliary sheet 90c is increased by adding the protrusion 97c, and assuming that the thickness of the auxiliary sheet without the protrusion is 0.5mm, the maximum thickness of the auxiliary sheet 90c (the area where the protrusion 97c is provided) in this embodiment may be 0.5mm, or the minimum thickness of the auxiliary sheet 90c (the area where the protrusion 97c is not provided) in this case may be 0.5mm, and of course, the auxiliary sheet 90c may have other thicknesses, which may be determined according to the actual situation.

Fig. 7a and 7b are schematic views of an auxiliary sheet structure according to a fourth embodiment of the present invention, which is similar to the third embodiment, and the same structure has the same function, and thus is not repeated herein.

The present embodiment differs from the third embodiment described above in that: at least some of the projections 97d on the flap 90d are aligned with the legs of the staple, here, the example is that the projection 97 d' of a dot is aligned with two legs.

In the present embodiment, still taking the auxiliary piece 90d as an example at the distal end surface of the nail magazine 41, after the staples are formed at the staple forming portion 91d, the surface close to the legs is defined as the first surface 95d, and the surface far from the legs is defined as the second surface 96 d.

Referring to fig. 7a and 7b, in the present embodiment, a plurality of protrusions 97d are formed at the first surface 95d at intervals, the strip-shaped protrusion 97d is located at the middle of the forming portion 91d, the dot-shaped protrusions 97d 'are located at the two ends of the staple forming portion 91d, and when the staple legs of each staple penetrate the staple forming portion 91d, the two legs of each staple just penetrate the dot-shaped protrusions 97 d'.

The design has the advantages that: (1) because the nail foot is a part which substantially pierces the foreskin, compared with other areas, the bleeding condition at the position is relatively serious, and the thickness at the position is increased through the convex-point-shaped bulge 97 d', so that the hemostatic effect at the position can be effectively improved; (2) because the crown and the first surface 95d still have the clearance between, if there is not the support in the department of bending of crown and nail foot, then can lead to sewing nail structure unstability in the shaping process, influence the shaping effect to influence subsequent whole hemostatic effect, utilize bulge 97 d' of salient point formula to provide the support for this department of bending in this embodiment, can effectively solve above-mentioned problem.

It should be noted that the thickness of the dot-shaped protrusion 97 d' and the thickness of the strip-shaped protrusion 97d may be different, but not limited thereto.

In the third and fourth embodiments, the shape of the protruding

portions

97c and 97d is not limited to the above description, and may be determined according to actual circumstances.

Fig. 8a to 8d are schematic structural views of the glans base 20 and the anvil assembly 45 according to the first embodiment of the present invention.

The anvil assembly 45 is located at the proximal end of the balanus cavity 21, the proximal end of the balanus cavity 21 has an annular groove 23, the knife anvil 452 is limited in the annular groove 23, the anvil 451 is located at the proximal end face of the annular groove 23, and the anvil 451 is disposed around the knife anvil 452. In addition, the periphery of anvil 451 may be formed with a plurality of snaps (not labeled) by which anvil 451 is secured to glans 20 and/or knife anvil 452.

In this embodiment, as shown in fig. 8d, the anvil assembly 45 includes a knife anvil 452 and an anvil 451, the knife anvil 452 includes a force-bearing surface 4521 and a recess 4522 opened away from the force-bearing surface, the knife anvil 452 further includes a first knife anvil 4523 positioned on a side of the recess 4522 close to the anvil 451, and an overlapping region is formed between the first knife anvil 4523 and the anvil 451 in an axial direction of the circumcision stapler.

Here, the anvil 452 is made of a hard material, and a hard anvil 452 having a recess 4522 (i.e., a "u" shaped anvil) is used to replace the rubber anvil in the conventional art, so that the design is advantageous in that: (1) the annular knife 44 and the knife anvil 452 are in contact with each other between hard materials, so that the annular knife 44 does not sink into the knife anvil 452 in the cutting process; (2) the region of the stress surface 4521 corresponding to the recessed portion 4522 is a cutting thin wall 4524, and the cutting thin wall 4524 is thinner than other regions and is easy to cut off, so that the corresponding foreskin is also cut off inevitably, and the cutting effect is ensured; (3) when the medical instrument is cut off, the medical instrument can have a clatter, so that better sound feedback is given to medical personnel.

In addition, a lip edge is formed at the foreskin after the cutting and the suturing are finished, the lip edge is defined as the distance from the suturing nail to the cutting edge, and because the healing of the foreskin cutting wound depends on the natural necrosis of tissues at the lip edge, the narrower the lip edge is, the higher the healing efficiency is, and the more beautiful the anastomosis hole after the operation is. Thus, a narrower lip means better surgical results.

In this embodiment, the first knife anvil 4523 and the anvil 451 have an overlap region therebetween such that the anvil 451 is as close as possible to the region of the cutting wall 4524 to minimize the separation between the cutting point of the annular knife 44 and the staple stapling point, thereby minimizing the lip.

In this embodiment, the first knife anvil 4523 has a setback 4525, the anvil 451 has an extension 4511 that mates with the setback 4525, and the design of the setback 4525 provides space for the anvil 451 to extend toward the cut thin wall 4524 without affecting the strength of the anvil 451.

Specifically, as shown in fig. 8d, a first inclined surface 4526 is formed on the receding portion 4525, a second inclined surface 4512 is formed on the extending portion 4511, and when the anvil 452 is not stressed, the first inclined surface 4526 and the second inclined surface 4512 contact with each other.

In the present embodiment, in the axial direction of the circumcision stapler, there is an overlapping region (not shown) between the anvil 451 and the recessed portion 4522, that is, the extension 4511 of the anvil 451 extends to a region above the recessed portion 4522.

In this way, when the annular knife 44 approaches the cutting thin wall 4524, the end surface 4513 of the extension portion 4511 serves as a guide surface for the annular knife 44 to stabilize the annular knife 44 in reaching the cutting thin wall 4524, and prevent the annular knife 44 from shifting during travel and failing to cut the cutting thin wall 4524. Preferably, the end face 4513 is disposed perpendicular to the force-bearing face 4521 of the anvil 452. Here, to further ensure that the annular knife 44 can cut the thin cutting wall 4524, the region of the recess 4522 can be enlarged appropriately.

In this embodiment, the anvil 452 further includes a second anvil portion 4527, the second anvil portion 4527 is located on a side of the recess 4522 facing away from the first anvil portion 4523, and the recess 4522 is located as close to the first anvil portion 4523 as possible for a minor lip, so that the strength of the second anvil portion 4527 is greater than that of the first anvil portion 4523.

Specifically, referring to fig. 8d, the maximum width of the second anvil portion 4527 is greater than the maximum width of the first anvil portion 4523 in a direction from the center of the anvil 452 toward the edge.

In this embodiment, when the thin cutting wall 4524 is stressed, the thin cutting wall 4524 drives the first anvil portion 4523 and the second anvil portion 4527 on both sides to tilt and collapse towards the recessed portion 4522.

The first knife anvil 4523 comprises a movable portion 4528 and a fixed portion 4529, the movable portion 4528 is connected to the cutting thin wall 4524, the fixed portion 4529 is connected to the movable portion 4528, and the fixed portion 4529 is configured to limit the collapse of the movable portion 4528 toward the recess 4522 when the first knife anvil 4527 collapses toward the recess 4522, in particular, when the movable portion 4528 collapses toward the recess 4522.

Here, as shown in fig. 8d, an upper narrow region of the first knife anvil 4527 having the relief 4525 is defined as a movable portion 4528, a lower wide region is defined as a fixed portion 4529, and the fixed portion 4529 has a larger width and better stability, and can effectively limit the movable portion 4528 from excessively collapsing into the recess 4522.

It is understood that in this embodiment, the movable portion 4528 may be restrained from collapsing toward the recessed portion 4522 by other fixing structures, or the movable portion 4528 may be restrained from collapsing toward the recessed portion 4522 by adding an additional fixing structure to the fixing portion 4529.

Fig. 9a to 9e are schematic structural views of a second embodiment of a glans base and an anvil assembly according to the present invention. This embodiment is similar to the first embodiment, and the same structure has the same function, which is not described herein again.

In this embodiment, a fixing foot 4530a is formed at the proximal end of the knife anvil 452a, a fixing port 4514a is correspondingly formed on the anvil 451a, and the knife anvil 452a and the anvil 451a are fixed to each other through the cooperation of the fixing foot 4530a and the fixing port 4514 a.

The proximal and distal ends of the first anvil portion 4523a of the anvil 452a form proximal and distal step portions S1 and S2, respectively.

A relief 4525a is formed at the proximal step S1 and cooperates with the extension 4511a at the anvil 451 a.

At least one fixing block 4528a is formed at the distal step portion S2, here, taking two symmetrically distributed fixing blocks 4528a as an example, a fixing groove 201a which is matched with the fixing block 4528a is formed at the base 20a, and the fixing of the anvil 452a and the glans base 20a is realized through the matching of the fixing block 4528a and the fixing groove 201 a.

It should be noted that the anchor block 4528a may be integrally formed with the first knife anvil 4523 a.

In the present embodiment, when the cutting thin wall 4524a is stressed, the first knife anvil 4523a has a tendency to collapse toward the recess 4522a, and at this time, the collapse of the first knife anvil 4523a toward the recess 4522a can be restricted by the cooperation of the anchor block 4528a with the fixing groove 201 a. Of course, the collapse of the first knife anvil 4523a may be limited by other securing structures.

Fig. 10 is a schematic structural view of a third embodiment of the glans base and anvil assembly according to the present invention. This embodiment is similar to the second embodiment, and the same structure has the same function, and is not described herein again.

The present embodiment differs from the second embodiment in that: in this embodiment, a first fastener 4529a is further formed at the fixing block 4528a, and correspondingly, a second fastener 202a is further formed at the fixing groove 201a, so that the positioning of the first knife anvil 4523a can be further assisted by the cooperation of the first fastener 4529a and the second fastener 202a, and the first knife anvil 4523a is prevented from collapsing during the cutting process.

Here, in order to facilitate the assembly of the anvil 452a and the glans 20a, a slot 4530a is further provided at the first catch 4529 a.

Fig. 11 to 15 are schematic structural views of the glans penis support 20, the anvil assembly 45, the staple cartridge 41 and the staple cartridge 42 according to an embodiment of the present invention.

In this embodiment, the glans base 20 includes an annular edge 23 surrounding the opening of the glans cavity 21, a slot 24 for accommodating a tie is formed on a side of the annular edge 23 away from the glans cavity 21, and the slot 24 extends along the direction from the proximal end of the circumcision stapler to the distal end. During surgery, the lace is positioned within channel 24.

In the present embodiment, as shown in fig. 11, the annular rim 23 includes an annular rim body 231 and an extension 232 (distinguished by a dotted line) located at the proximal end of the annular rim body 231, which are connected to each other, and the slot 24 extends from the opening of the balanus cavity 21 to the proximal end of the extension 232.

The design has the advantages that: in the direction from the proximal end to the distal end of the circumcision anastomat, an extension 232 is added, so that the distance from the nearest end of the extension 232 to the end surface of the proximal end of the anvil 451 is larger than the distance from the proximal end to the end surface of the proximal end of the annular edge body 231. In addition, the extension 232 and the annular edge body 231 may be integrally formed.

In this embodiment, the extension 232 is symmetrical along a central line, the central line extends along the extending direction of the slot body 24, the width of the extension 232 along the extending direction of the slot body 24 is gradually changed, and the width reaches a maximum value at the position of the central line, and the slot body 24 is located at the central line.

That is, along the circumferential direction, the width of the extending portion 232 has a variation trend of "minimum value-gradually increasing-maximum value-gradually decreasing-minimum value" from one end to the other end, and the width of the extending portion 232 reaches the maximum value at the central line thereof, and the slot body 24 is disposed at the central line position, so that the width of the slot body 24 reaches the maximum value, and thus, the remaining length of the lace can be increased as much as possible.

In this embodiment, the proximal end surface of the extension 232 is arc-shaped, and the proximal end surface of the extension 232 and the proximal end surface of the annular edge body 231 are smoothly transited.

In addition, the proximal end face of the extension 232 is located at the proximal end of the proximal end face of the anvil 451, and the inner side face 2321 of the extension 232 close to the glans penis cavity 21 and the proximal end face of the anvil 451 are also in smooth transition.

The advantages of the arc end face and smooth transition design are as follows: due to the arrangement of the extension part 232, the shape of the prepuce cutting part can be influenced, and the cutting shape can be effectively adjusted through the design of the arc-shaped end surface and smooth transition, so that the postoperation is more attractive.

In this embodiment, since the proximal end surface of the extension 232 is located at the proximal end of the proximal end surface of the anvil 451, a receiving space S is formed between the extension 232 and the anvil 451.

In operation, after the glans penis is placed in the glans penis cavity 21, the foreskin covers the annular edge 23 of the glans penis seat 20, and the distal end of the foreskin is in a free state.

When the glans 20 is moved closer to the casing 10 by rotating the knob 50, the wrappers are located between the anvil assembly 45 and the magazine 41 which are gradually close to each other, and the wrappers gradually enter and cling to the receiving space S due to their own sliding.

When the cocked position is reached, the frenulum is adjusted to enter the trough body 24, the frenulum is turned over at the central line where the trough body 24 is located, and the length reserved at the frenulum is similar to 2 times of the width of the trough body 24 and is far greater than the length reserved for the foreskin located at the annular edge body 231.

Of course, since the extension 232 is smoothly transited from the slot 24 (i.e. at the midline) to both sides, the length of the foreskin remaining at each position of the extension 232 is also approximately 2 times the width at the corresponding position in the axial direction of the circumcision stapler, and is also smoothly transited; therefore, the situation that the circumcision at the periphery of the frenulum is excessively reserved due to the fact that the frenulum needs to be protected can be avoided, the operation opening is more attractive, and the requirements of patients are met.

Here, it should be noted that the accommodating space S is substantially a semi-closed space enclosed by the annular edge 23, the anvil 451, the knife anvil 452, and the balanus seat 20, and the accommodating space S is relatively large near the annular edge 23. Therefore, as long as the width of the groove body 24 is reasonably designed, the lace can be automatically protected in the operation, a doctor does not need to pay attention to the state of the lace intentionally and manually, and the operation risk caused by the over-cutting of the lace is avoided.

In the present embodiment, as shown in fig. 15, a long groove 421 is formed at an outer side surface of the nail cylinder 42, the long groove 421 extends along an extending direction of the groove body 24, and when the balanus 20 is assembled to the housing 10, whether the balanus 20 is assembled in place can be determined by aligning the long groove 421 with the groove body 24.

In the present embodiment, the outer wall of the staple cartridge 41 includes the protruding portion 412 exposing the staple cartridge 42, and compared with the scheme that the staple cartridge 41 is completely accommodated in the staple cartridge 42, the present embodiment can effectively increase the distance between the distal end surface of the staple cartridge 42 and the proximal end surface of the annular edge 23, and particularly in the case that the annular edge 23 of the present embodiment has the extending portion 232, the increased distance can prevent the foreskin from entering the accommodating space S easily due to collision or too small distance between the distal end surface of the staple cartridge 42 and the proximal end surface of the annular edge 23 during the closing process.

In addition, the protruding part 412 is in a tapered structure on the side close to the nail barrel 42, the outer diameter of the protruding part 412 is gradually increased from the far end to the near end, and the design of the tapered structure can increase the overall strength of the nail bin 41 on the one hand without affecting the distance between the far end surface of the nail barrel 42 and the near end surface of the annular edge 23, and on the other hand, can be fixed with the nail barrel 42 through the tapered structure, so that the overall strength of the nail bin 41 is further enhanced.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. A glans penis seat is used for a circumcision anastomat and is characterized in that the glans penis seat comprises a glans penis cavity for containing glans penis and an annular edge arranged around an opening of the glans penis cavity, a cavity or an installation surface for containing a nail anvil is formed at the near end of the glans penis cavity, a groove body for containing a frenum is formed on one side, away from the glans penis cavity, of the annular edge, the groove body extends along the direction from the near end of the circumcision anastomat to the far end, the annular edge comprises annular edge bodies connected with one another and an extension portion located at the near end of the annular edge bodies, the groove body extends from the opening of the glans penis cavity to the near end of the extension portion, and in the direction from the near end of the circumcision anastomat to the far end, the distance from the nearest end of the extension portion to the end face of the nail.

2. The glans penis support as claimed in claim 1, wherein the extension is symmetrical along a central line, the central line extends along the extending direction of the trough body, the width of the extension along the extending direction of the trough body is gradually changed, the width reaches a maximum value at the position of the central line, and the trough body is located at the position of the central line.

3. The glans penis receptacle according to claim 1, wherein the extension connects to a portion of the proximal end face of the annular rim body and there is a smooth transition between the proximal end face of the extension and the proximal end face of the annular rim body.

4. The glans penis receptacle of claim 1, wherein said annular rim body and said extension are integrally formed.

5. A circumcision stapler, characterized by comprising:

a nail barrel;

the nail box is positioned in the nail barrel, and the outer wall of the nail box comprises a protruding part which is exposed out of the nail barrel; and

the turtle shell of any one of claims 1-4.

6. The circumcision stapler according to claim 5, wherein the protruding portion has a tapered configuration at a side thereof adjacent to the cartridge, and has an outer diameter gradually increasing from the distal end to the proximal end.

7. The circumcision stapler according to claim 6, wherein the protruding portion and the cartridge are fixed to each other.

8. A circumcision stapler, characterized by comprising:

a glans penis socket as claimed in any one of claims 1 to 4;

the nail anvil is arranged at the near end of the balanus seat;

the nail anvil is positioned on one side of the annular edge close to the balanus cavity, and the proximal end face of the extension part is positioned at the proximal end of the proximal end face of the nail anvil.

9. The circumcision stapler according to claim 8, wherein the extension has a smooth transition between the inner side surface near the glans penis cavity and the end surface near the anvil.