Prepuce anastomat with large window assembly

Abstract

The utility model relates to a prepuce anastomat with a large window assembly, and relates to the technical field of medical instruments, the prepuce anastomat comprises an anastomat mechanism and a glans penis seat mechanism, the anastomat mechanism comprises a shell and a nail head assembly, the nail head assembly comprises a nail cylinder, a nail bin and a nail pushing piece, the nail cylinder is connected with the shell, and the nail pushing piece and the nail bin are arranged in an inner cavity of the nail cylinder; the staple cartridge is positioned at one end of the staple pushing piece away from the shell; an expansion stopping pipe is arranged in an inner cavity of the nail barrel; the glans penis seat mechanism comprises a containing cover and an anvil shaft, the anvil shaft is connected with the containing cover, and the anvil shaft slides in the expansion stopping pipe; the device further comprises an observation mechanism. A connecting part connected with the shell is arranged on the nail barrel, and the distance from the end, close to the nail bin, of the observation mechanism to the connecting part is not larger than the distance from the end, close to the nail bin, of the expansion stopping pipe to the connecting part. The prepuce anastomat has the effect that the problem that the nail head assembly is prone to deflection in the percussion process of the prepuce anastomat is solved.

Description

Technical Field

[0001] The present application relates to the technical field of stapler devices, and in particular to a foreskin stapler with a large window assembly. Background Art

[0002] Phimosis and redundant prepuce are common reproductive problems in men. Redundant prepuce is prone to dirt accumulation. If not cleaned in time, it will cause balanoposthitis and penis inflammation, affecting normal sexual life of couples, increasing the chance of the sexual partner suffering from cervicitis and cervical cancer, and also causing various problems such as penile cancer, infertility, premature ejaculation, etc. The circumcision stapler is one of the main methods for treating phimosis and redundant prepuce.

[0003] The related art provides a circumcision stapler, the stapler body of which includes a staple head assembly and a glans cover assembly. The staple head assembly includes a staple cartridge, a pusher plate, a staple magazine, a circumcision knife, an anvil assembly and a staple magazine. The anvil assembly is sleeved on the glans cover assembly. The pusher plate and the circumcision knife are arranged in the staple cartridge. The staple magazine is arranged at one end of the staple cartridge close to the glans cover assembly. During the operation, the foreskin is wrapped around the glans cover assembly with a surgical forceps and pulled into the staple cartridge. The anvil assembly and the staple magazine hold the foreskin. When firing and anastomosing, the circumcision knife cuts the foreskin, and the pusher plate drives the suturing staples in the staple magazine into the foreskin wound for suturing.

[0004] However, the existing foreskin stapler staple cartridge has weak anti-yaw force and is prone to yaw during firing. In the case of uneven thickness of the foreskin tissue, unstable cutting and suturing may occur, so it needs to be improved. Summary of the Utility Model

[0005] In order to improve the problem that the staple head assembly is prone to yaw during the firing process of the foreskin stapler, the present application provides a foreskin stapler with a large window assembly.

[0006] The present application provides the following technical solution:

[0007] A circumcision stapler with a large window component, comprising a stapler mechanism and a glans seat mechanism. The stapler mechanism includes a housing and a staple head assembly. The staple head assembly includes a staple cartridge, a staple magazine, a pusher plate, and a pusher seat. The staple cartridge is connected to the housing. The pusher plate and the staple magazine are disposed inside the staple cartridge cavity. The pusher plate is connected to the housing through the pusher seat. The staple magazine is located at one end of the pusher plate away from the housing. A swelling prevention tube is further disposed inside the staple cartridge cavity. The glans seat mechanism includes an anvil shaft, a receiving cover, and an adjusting rod. The anvil shaft is connected to the receiving cover, and the anvil shaft is slidably connected to the inner sidewall of the swelling prevention tube. The anvil shaft is connected to the housing through the adjusting rod. It further includes an observation mechanism, which includes a plurality of first open windows and a plurality of second open windows for observing the accommodation degree of tissues. The plurality of first open windows are disposed on the staple cartridge, and the plurality of second open windows corresponding to the first open windows are disposed on the pusher plate. The distance from one end of the first open window close to the staple magazine to the connection part is not greater than the distance from one end of the swelling prevention tube close to the staple magazine to the connection part.

[0008] By adopting the above technical solution, the first open window and the second open window provide a large window for the operator, facilitating the operator to observe the accommodation of the target physiological tissue. The distance from one end of the first open window close to the staple magazine to the connection part is not greater than the distance from one end of the swelling prevention tube close to the staple magazine to the connection part, which can effectively resist yaw, so that even when the thickness of the foreskin tissue is uneven, the suture staples can still be stably driven into the target tissue to complete the suture.

[0009] In a specific feasible embodiment, a plurality of reinforcing side plates are disposed between the sidewall inside of the staple cartridge and the swelling prevention tube, and a plurality of moving channels for the reinforcing side plates to move are disposed on the pusher plate.

[0010] By adopting the above technical solution, the plurality of reinforcing side plates ensure the position stability of the swelling prevention tube and enhance the anti-yaw ability of the swelling prevention tube. The cooperation between the reinforcing side plates and the moving channels ensures that the moving direction of the pusher plate does not deviate.

[0011] In a specific feasible embodiment, a first positioning portion is disposed on the anvil shaft, and a second positioning portion that cooperates with the first positioning portion is disposed inside the sidewall of the swelling prevention tube.

[0012] By adopting the above technical solution, the first positioning portion and the second positioning portion cooperate with each other to limit the rotation of the anvil shaft relative to the swelling prevention tube, further enhancing the anti-yaw ability of the swelling prevention tube.

[0013] In a specific feasible embodiment, a plurality of first convex ribs are disposed at one end of the outer sidewall of the pusher plate close to the staple magazine, and a plurality of first guiding grooves that cooperate with the first convex ribs are disposed on the inner sidewall of the staple cartridge.

[0014] By adopting the above technical solution, the first convex rib and the first guiding groove cooperate with each other, ensuring the movement stability of the staple pushing piece and reducing the possibility of deviation in the movement direction of the staple pushing piece.

[0015] In a specific feasible embodiment, a plurality of second convex ribs are provided on the staple pushing seat, and a plurality of second guiding grooves are provided on the inner side wall of the housing and are matched with the second convex ribs.

[0016] By adopting the above technical solution, the second convex rib and the second guiding groove cooperate with each other, enabling the staple pushing seat to stably push the staple pushing piece along the axial direction of the staple cartridge, ensuring the movement stability of the staple pushing seat, and further enhancing the movement stability of the staple pushing piece.

[0017] In a specific feasible embodiment, a clamping block is provided at one end of the adjusting rod close to the anvil shaft, and a clamping hole is provided at one end of the anvil shaft close to the adjusting rod and is matched with the clamping block.

[0018] By adopting the above technical solution, the adjusting rod and the anvil shaft are snap-connected, facilitating the operator to disassemble, replace, and install the receiving cover.

[0019] In a specific feasible embodiment, the receiving cover includes a receiving cavity for receiving the glans penis and an annular edge, and the annular edge is arranged around the receiving cavity.

[0020] By adopting the above technical solution, according to the different sizes of the target tissue, receiving cavities with different inner diameters can be selected to make the receiving cavity adapt to the target tissue, reducing the possibility that the target tissue is over-pulled by the surgical forceps when the operator fixes the target tissue because the target tissue is smaller than the receiving cavity.

[0021] In a specific feasible embodiment, a plurality of exhaust holes are provided in the receiving cavity.

[0022] By adopting the above technical solution, when the target tissue is small and fits tightly with the annular edge, the possibility that a sealed space is formed between the receiving cavity and the target tissue, preventing the target tissue from approaching the receiving cavity, is reduced.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The first observation window and the second observation window provide a large viewing window for the operator, facilitating the operator to observe the accommodation of the target physiological tissue; the distance from the end of the first opening window close to the staple cartridge to the connecting part is not greater than the distance from the end of the anti-backlash tube close to the staple cartridge to the connecting part, which can effectively resist deflection, so that even when the thickness of the foreskin tissue is uneven, the nail forming can still be consistent;

[0025] 2. According to the different sizes of the target tissue, accommodation cavities with different inner diameters can be selected to adapt the accommodation cavity to the target tissue, reducing the possibility that the operator over-stretches the target tissue with surgical forceps when the target tissue is smaller than the accommodation cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a foreskin stapler with a large window assembly in an embodiment of the present application;

[0027] Figure 2 is a schematic structural diagram of a staple head assembly and a glans base mechanism in an embodiment of the present application;

[0028] Figure 3 is an exploded schematic diagram of the staple head assembly in an embodiment of the present application;

[0029] Figure 4 is an exploded schematic diagram of the staple head assembly in an embodiment of the present application;

[0030] Figure 5 is Figure 4 an enlarged schematic diagram of part A in

[0031] Figure 6 is Figure 4 an enlarged schematic diagram of part B in

[0032] Figure 7 is a schematic structural diagram of a staple cartridge in an embodiment of the present application;

[0033] Figure 8 is Figure 7 an enlarged schematic diagram of part C in

[0034] Figure 9 is an exploded schematic diagram of the glans base mechanism in an embodiment of the present application;

[0035] Figure 10 is a schematic structural diagram of an accommodation cover with another size in an embodiment of the present application;

[0036] Figure 11 is a schematic structural diagram of a staple cartridge with another size in an embodiment of the present application.

[0037] DESCRIPTION OF THE REFERENCE NUMERALS:

[0038] 1. Stapler mechanism; 11. Adjusting knob; 12. Housing; 13. Firing handle; 2. Glans seat mechanism; 21. Anvil shaft; 211. First positioning portion; 22. Receiving cover; 221. Receiving cavity; 222. Annular edge; 223. Vent hole; 23. Adjusting rod; 231. Clamping block; 3. Staple head assembly; 31. Staple cartridge; 311. Connecting portion; 312. Reinforcing side plate; 313. First guiding groove; 32. Pusher plate; 321. Moving channel; 322. First convex rib; 33. Pusher seat; 331. Second convex rib; 34. Magazine; 35. Annular knife; 36. Anvil assembly; 4. Observation mechanism; 41. First opening; 42. Second opening; 5. Anti-swelling tube; 51. Second positioning portion. Detailed implementation manners

[0039] An embodiment of the present application discloses a foreskin stapler with a large window assembly.

[0040] The following Figures 1-11 is a further detailed description of the present application in conjunction with the attached

[0041] Referring to Figure 1 and Figure 2 , it includes a stapler mechanism 1 and a glans seat mechanism 2. The glans seat mechanism 2 includes a receiving cover 22 and an adjusting rod 23. The stapler mechanism 1 includes an adjusting knob 11, a housing 12, a firing handle 13, and a staple head assembly 3. The firing handle 13 is rotatably connected to both sides of the housing 12 in the width direction. The staple head assembly 3 is connected to the housing 12. The adjusting rod 23 is disposed through the inner cavity of the housing 12. The receiving cover 22 is bolted to the adjusting knob 11 through the adjusting rod 23, and the receiving cover 22 is disposed at one end of the staple head assembly 3 away from the housing 12. By rotating the adjusting knob 11, the adjusting rod 23 drives the receiving cover 22 to move along the axial direction of the staple head assembly 3. When the target tissue is fixed by the glans seat mechanism 2, by pressing the firing handle 13, the staple head assembly 3 can cut and suture the target tissue.

[0042] Referring to Figure 1 and Figure 3 , the staple head assembly 3 includes a staple cartridge 31, a pusher plate 32, a pusher seat 33, a magazine 34, an annular knife 35, and an anvil assembly 36. The staple cartridge 31 is snap-connected to the housing 12 through a connecting portion 311. The pusher plate 32 and the magazine 34 are disposed inside the side wall of the staple cartridge 31. The pusher plate 32 abuts against the firing handle 13 through the pusher seat 33. The magazine 34 is disposed at one end of the pusher plate 32 away from the pusher seat 33 and cooperates with the pusher plate 32. A plurality of suture staples for suturing the incision are disposed in the magazine 34. The annular knife 35 is disposed inside the pusher plate 32, and one end of the annular knife 35 close to the magazine 34 extends outside the pusher plate 32. The anvil assembly 36 is disposed on one side of the staple cartridge 31 close to the magazine 34.

[0043] Referring to Figure 1 andFigure 3 By rotating the adjustment knob 11, the receiving cover 22 is driven to move towards the staple cartridge 31, so that the anvil assembly 36 and the staple cartridge 34 clamp the target tissue. Press the firing handle 13, and the firing handle 13 drives the pusher plate 32 towards the staple cartridge 34 through the pusher base 33. Then, the annular knife 35 cuts the target tissue, and at the same time, the suture staples are driven into the target tissue to complete the suture.

[0044] Refer to Figure 4 and Figure 5 One end of the pusher plate 32 away from the pusher base 33 is provided with a plurality of first convex ribs 322. The plurality of first convex ribs 322 are uniformly arranged on the outer side wall of the pusher plate 32. In this embodiment, the plurality of first convex ribs 322 and the pusher plate 32 are integrally formed.

[0045] Refer to Figure 7 On the inner side wall of the staple cartridge 31, a plurality of first guide grooves 313 adapted to the first convex ribs 322 are provided. The first convex ribs 322 and the first guide grooves 313 ensure the movement stability of the pusher plate 32 and reduce the possibility of the movement direction of the pusher plate 32 deviating.

[0046] Refer to Figure 4 and Figure 6 Four second convex ribs 331 are symmetrically arranged on the pusher base 33, and four second guide grooves adapted to the second convex ribs 331 are provided on the inner side wall of the housing 12. The second convex ribs 331 and the second guide grooves cooperate with each other, so that the pusher base 33 can stably push the pusher plate 32 along the axial direction of the staple cartridge 31, ensuring the movement stability of the pusher base 33, and further enhancing the movement stability of the pusher plate 32.

[0047] Refer to Figure 3 and Figure 7 A swelling prevention tube 5 is arranged in the staple cartridge 31, and a plurality of reinforcing side plates 312 are arranged between the inner side wall of the staple cartridge 31 and the swelling prevention tube 5. In the embodiment, the number of the reinforcing side plates 312 can be four, and the reinforcing side plates 312, the swelling prevention tube 5 and the staple cartridge 31 are integrally formed.

[0048] Refer to Figure 3 and Figure 4 A moving channel 321 matching the reinforcing side plates 312 is arranged on the pusher plate 32. The four reinforcing side plates 312 jointly ensure the position stability of the swelling prevention tube 5 and further enhance the anti-yaw ability of the swelling prevention tube 5. At the same time, the moving channel 321 also provides a guiding function for the pusher plate 32 and reduces the possibility of the movement direction of the pusher plate deviating.

[0049] Refer to Figure 3, A circumcision stapler with a large window component further includes an observation mechanism 4. The observation mechanism 4 includes two first open windows 41 and two second open windows 42. The two first open windows 41 are symmetrically arranged on the staple cartridge 31, and the two second open windows 42 are arranged on the pusher 32. The second open windows 42 correspond to the first open windows 41 one by one. The first open windows 41 and the second open windows 42 cooperate to form an observation area, enabling the operator to observe the accommodation of the target tissue and reducing the occurrence of situations such as excessive traction and inaccurate cutting. The first open windows 41 and the second open windows 42 have the same shape, which can be circular or square. In this embodiment, both the first open windows 41 and the second open windows 42 are circular, and the inner diameter of the second open windows 42 is not less than that of the first open windows 41.

[0050] Refer to Figure 3 , The distance from the end of the first open window 41 close to the staple storage 34 to the connecting part 311 is not greater than the distance from the end of the anti-backlash tube 5 close to the staple storage 34 to the connecting part 311, which can enhance the anti-yaw ability of the anti-backlash tube 5, so that even when the target tissue is uneven in thickness, the nail forming can still be consistent. In this embodiment, the distance from the end of the first open window 41 close to the staple storage 34 to the connecting part 311 is equal to the distance from the end of the anti-backlash tube 5 close to the staple storage 34 to the connecting part 311.

[0051] Refer to Figure 2 , The glans seat mechanism 2 further includes an anvil shaft 21. The receiving cover 22 is connected to the adjusting rod 23 through the anvil shaft 21. The receiving cover 22 and the anvil shaft 21 are integrally formed. The anvil shaft 21 is slidably connected to the inner side wall of the anti-backlash tube 5, and a first positioning portion 211 is uniformly arranged on the anvil shaft 21.

[0052] Refer to Figure 7 and Figure 8 , A second positioning portion 51 adapted to the first positioning portion 211 is arranged inside the side wall of the anti-backlash tube 5. The first positioning portion 211 and the second positioning portion 51 cooperate to reduce the possibility of the anvil shaft 21 rotating and shifting relative to the anti-backlash tube 5. In this embodiment, the first positioning portion 211 can be multiple convex ribs or splines, and the second positioning portion 51 can be multiple grooves or spline grooves.

[0053] Refer to Figure 9 , A clamping block 231 is arranged on the adjusting rod 23, and a clamping groove cooperating with the clamping block 231 is arranged at one end of the anvil shaft 21 away from the receiving cover 22. The snap connection between the anvil shaft 21 and the adjusting rod 23 facilitates the disassembly and replacement of the receiving cover 22.

[0054] Refer to Figure 10, the accommodating cover 22 can have different inner diameter sizes. According to the different sizes of the target tissue, accommodating covers 22 with different inner diameter sizes can be selected to make it more suitable for the target tissue, reducing the possibility of excessive pulling to fix the target tissue due to the too small target tissue, or the possibility that the accommodating cover 22 cannot fix the target tissue due to the too large target tissue.

[0055] Referring to Figure 11 , in order to match the accommodating covers 22 with different inner diameter sizes, the staple cartridge 31 can also have different inner diameter sizes.

[0056] Referring to Figure 9 and Figure 10 , the accommodating cover 22 includes an accommodating cavity 221 for accommodating the glans of the target tissue and an annular edge 222. The annular edge 222 is connected to the outer peripheral side wall of the end of the accommodating cavity 221 far from the anvil shaft 21, and the annular edge 222 is integrally formed with the accommodating cavity 221. The foreskin of the target tissue wraps around the annular edge 222, and the annular edge 222 cooperates with the staple cartridge 34 to clamp the target tissue. The outer edge of the annular edge 222 bends towards the anvil shaft 21, ensuring a flexible fit with the target tissue.

[0057] Referring to Figure 10 , a plurality of exhaust holes 223 are provided on the accommodating cavity 221. When the foreskin opening of the target tissue is small and the foreskin fits tightly with the annular edge, the exhaust holes 223 can reduce the possibility that a sealed space is formed between the target tissue and the accommodating cavity 221, preventing the target tissue from approaching the accommodating cavity 221.

[0058] The implementation principle of a large window component and a foreskin stapler in an embodiment of the present application is as follows: The observation mechanism 4 formed by the first opening window 41 and the second opening window 42 can provide a large window for the operator, facilitating observation; the distance from the end of the anti-expansion tube 5 close to the staple cartridge 34 to the connecting portion 311 of the first opening window 41 close to the staple cartridge 34 to the staple barrel 31 is equal, strengthening the anti-yaw ability of the anti-expansion tube 5, so that even when the thickness of the foreskin tissue is uneven, the nail forming can still be consistent; the first positioning portion 211 and the second positioning portion 51 cooperate, the first convex rib 322 and the first guide groove 313 cooperate, and the second convex rib 331 and the second guide groove cooperate, further enhancing the anti-offset ability of the anti-expansion tube 5 and the staple barrel 31, while ensuring the movement stability of the pusher 32, further strengthening the suturing effect of the suturing nail; according to the size of the target tissue, an accommodating cover 22 with an accommodating cavity 221 of different inner diameter sizes can be selected to prevent the operator from excessively pulling the target tissue with surgical forceps.

[0059] The above are all preferred embodiments of the present application. Without restricting the protection scope of the present application based on this, therefore: All equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A foreskin stapler with a large window assembly, comprising a stapler mechanism (1) and a glans base mechanism (2), wherein the stapler mechanism (1) comprises a housing (12) and a nail head assembly (3), wherein the nail head assembly (3) comprises a nail barrel (31), a nail magazine (34), a nail pushing piece (32) and a nail pushing seat (33), wherein the nail barrel (31) is connected to the housing (12), wherein the nail pushing piece (32) and the nail magazine (34) are arranged in the inner cavity of the nail barrel (31), wherein the nail pushing piece (32) is connected to the housing (12) via the nail pushing seat (33), and wherein the nail magazine (34) is located at an end of the nail pushing piece (32) away from the housing (12); wherein the inner cavity of the nail barrel (31) is further provided with an anti-rising tube (5); wherein the glans base mechanism (2) comprises an anvil shaft (21) , a containing cover (22) and an adjusting rod (23), the anvil shaft (21) is connected to the containing cover (22), and the anvil shaft (21) is slidably connected to the inner wall of the anti-inflation tube (5), and the anvil shaft (21) is connected to the housing (12) through the adjusting rod (23); characterized in that: The invention comprises an observation mechanism (4), wherein the observation mechanism (4) comprises a plurality of first opening windows (41) and a plurality of second opening windows (42) for observing the tissue accommodation degree, wherein the plurality of first opening windows (41) are arranged on the nail barrel (31), and the plurality of second opening windows (42) corresponding to the first opening windows (41) are arranged on the nail pushing sheet (32); The nail barrel (31) is provided with a connecting portion (311) connected to the shell (12), and the distance from one end of the first opening window (41) close to the nail magazine (34) to the connecting portion (311) is not greater than the distance from one end of the anti-rising tube (5) close to the nail magazine (34) to the connecting portion (311).

2. The circumcision stapler with a large window assembly according to claim 1, characterized in that: A plurality of reinforcing side plates (312) are arranged between the side wall of the nail barrel (31) and the anti-rising tube (5), and a plurality of moving channels (321) for allowing the reinforcing side plates (312) to move are arranged on the nail pushing plate (32).

3. The circumcision stapler with a large window assembly according to claim 1, characterized in that: The anvil shaft (21) is provided with a first positioning portion (211), and the side wall of the anti-inflation tube (5) is provided with a second positioning portion (51) that cooperates with the first positioning portion (211).

4. The circumcision stapler with a large window assembly according to claim 1, characterized in that: A plurality of first ridges (322) are arranged on the outer wall of the nail pushing piece (32) at one end close to the nail magazine (34), and a plurality of first guide grooves (313) matching with the first ridges (322) are arranged on the inner wall of the nail barrel (31).

5. The circumcision stapler with a large window assembly according to claim 1, characterized in that: The pin-pushing seat (33) is provided with a plurality of second ridges (331), and the inner side wall of the housing (12) is provided with a plurality of second guide grooves matching the second ridges (331).

6. The circumcision stapler with a large window assembly according to claim 1, characterized in that: A clamping block (231) is provided at one end of the adjusting rod (23) close to the anvil shaft (21), and a clamping hole matching the clamping block (231) is provided at one end of the anvil shaft (21) close to the adjusting rod.

7. The circumcision stapler with a large window assembly according to claim 1, characterized in that: The accommodating cover (22) comprises an accommodating cavity (221) for accommodating the glans penis and an annular edge (222), wherein the annular edge (222) is arranged around the accommodating cavity (221).

8. The circumcision stapler with a large window assembly according to claim 7, characterized in that: A plurality of exhaust holes (223) are arranged in the accommodating cavity (221).

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