Anorectal anastomat convenient to maintain

Abstract

The utility model relates to the technical field of anorectal anastomats, and discloses an anorectal anastomat convenient to maintain, which comprises an anastomat body, an osculating component is arranged at one end of the anastomat body, a connecting component is arranged at one end of the osculating component, the connecting component comprises a mounting rod, one end of the mounting rod is fixedly connected with the osculating component, and the other end of the mounting rod is fixedly connected with the osculating component. A mounting groove in sliding fit with the mounting rod is formed in one end of the anastomat body, a plurality of guide blocks are fixedly connected to the outer side of the mounting rod and distributed around the mounting rod at equal angles, and a plurality of guide grooves in sliding fit with the corresponding guide blocks are formed in the inner wall of the mounting groove; a positioning piece for positioning and fixing the mounting rod is arranged on the outer side of the anastomat body. According to the utility model, the osculating component can be quickly disassembled, so that the osculating component can be conveniently and independently taken out, the operation is convenient, and the osculating component can be conveniently maintained.

Description

Technical Field

[0001] This utility model relates to anorectal anastomosis devices. More specifically, this utility model relates to anorectal anastomosis devices that are easy to maintain. Background Technology

[0002] The anorectal stapler is suitable for stapled repair of rectal mucosal prolapse or hemorrhoidal mucosal tissue in the anal canal. The basic principle is to load the staples into the staple cartridge, fix the ring blade on the pusher plate, and connect the front end of the component to the metal anvil. The anvil has an imprinted pit at the upper end. The pusher plate is driven by the transmission component to push out the staples and the central ring blade. The ring blade completes the cutting work, and the surrounding annular staples are bent into a B shape under the action of the corresponding anvil pit, realizing the suturing of the periphery of the excised tissue.

[0003] A search revealed that Chinese Patent Publication No. CN202235527U discloses "an anorectal stapler, comprising a handle, a bayonet tube, a cutting assembly, and an anvil located at the front end of the cutting assembly. One end of the bayonet tube is connected to the handle via a locking ring, and the other end of the bayonet tube is connected to the cutting assembly. The cutting assembly includes a staple cartridge, a staple cartridge sleeve connected to the staple cartridge, and an annular blade disposed within the staple cartridge sleeve with its head protruding from the front end of the staple cartridge sleeve. A staple pusher is provided inside the staple cartridge sleeve, and an anastomotic staple is provided at the front end of the staple cartridge sleeve by being pushed by the staple pusher. The anastomotic staples are distributed circumferentially around the annular blade. The blade of the annular blade is a single-edged blade, and the annular blade and the staple pusher are integrally injection molded structures."

[0004] This patent uses a cutting component to surgically cut the target tissue. However, the cutting component needs to be maintained after the surgery, such as disinfection or blade replacement. The cutting component of this patent is an integral structure with the main body of the anorectal stapler, which requires operation of the entire anorectal stapler. The overall size is large and inconvenient to operate. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides an anorectal anastomosis device that is easy to maintain, and has the advantage of being able to quickly disassemble and assemble the anastomosis components for easy maintenance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a maintenance-friendly anorectal stapler, comprising a stapler body, a cutting assembly at one end of the stapler body, a connecting assembly at one end of the cutting assembly, and a mounting rod at one end of the connecting assembly. The mounting rod is fixedly connected to the cutting assembly at one end, and a mounting groove is provided at one end of the stapler body for sliding engagement with the mounting rod. A plurality of guide blocks are fixedly connected to the outer side of the mounting rod, and these guide blocks are distributed at equal angles around the mounting rod. A plurality of guide grooves are provided on the inner wall of the mounting groove for sliding engagement with the corresponding guide blocks. A positioning element for positioning and fixing the mounting rod is provided on the outer side of the stapler body.

[0007] As a preferred technical solution of this utility model, the positioning component includes a first fixing plate, which is fixedly connected to the outside of the stapler body. A rotating sleeve is rotatably connected to one side of the first fixing plate. The rotating sleeve is sleeved on the outside of the stapler body. A plurality of paddles are fixedly connected to the outside of the rotating sleeve, and the plurality of paddles are distributed at equal angles around the rotating sleeve.

[0008] As a preferred embodiment of this utility model, the diameters of the two ends of the rotating sleeve are different, the inner diameter of one end of the rotating sleeve is the same as the outer diameter of the anastomosis device body, and the inner diameter of the other end of the rotating sleeve is larger than the outer diameter of the anastomosis device body.

[0009] As a preferred embodiment of this utility model, the positioning component further includes a plurality of arc-shaped pressure blocks, all of which are fixedly connected to the inner side of the rotating sleeve. The plurality of arc-shaped pressure blocks are distributed at equal angles around the rotating sleeve. The inner side of the mounting groove is slidably connected to a plurality of positioning rods corresponding one-to-one with the arc-shaped pressure blocks. One end of each of the positioning rods is slidably engaged with the mounting rod, and the other end of each of the positioning rods is fixedly connected to a protrusion. The plurality of arc-shaped pressure blocks abut against the protrusions by cooperating with the rotation of the rotating sleeve.

[0010] As a preferred embodiment of this utility model, each of the positioning rods is fitted with a spring, one end of each spring abuts against a corresponding protrusion, and the other end of each spring abuts against the outer wall of the anastomosis device body.

[0011] As a preferred embodiment of this utility model, the outer side of the mounting rod is provided with several positioning grooves that slide in conjunction with the positioning rod.

[0012] As a preferred technical solution of this utility model, a locking assembly is provided at the bottom of the stapler body. The locking assembly includes two parallel second fixing plates. Each of the two second fixing plates has a sliding groove. A movable rod is slidably connected to the inner side of the two sliding grooves. A connecting rod is rotatably connected to the middle of the movable rod. The end of the connecting rod away from the movable rod is hinged to the firing handle of the stapler body. Locking nuts are threaded to both ends of the movable rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: During installation, by inserting the mounting rod into the mounting groove and simultaneously making the guide block cooperate with the corresponding guide groove, and then fixing the mounting rod by the positioning component, the kissing and cutting component can be quickly installed. Similarly, by operating the positioning component to release the fixing of the mounting rod, the mounting rod can be directly pulled out and detached from the mounting groove, thereby realizing the quick disassembly of the kissing and cutting component. This makes it convenient to remove the kissing and cutting component separately, which is convenient to operate and facilitates the maintenance of the kissing and cutting component. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a convenient anorectal stapler according to the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the connecting component of this utility model;

[0016] Figure 3 This is a schematic diagram of the positioning component of this utility model;

[0017] Figure 4 for Figure 3 An enlarged structural diagram of part A;

[0018] Figure 5 This is a schematic diagram of the locking assembly of this utility model.

[0019] In the diagram: Anastomosis device body 1, anastomosis and cutting assembly 2, connecting assembly 3, mounting rod 31, guide block 32, mounting groove 33, guide groove 34, positioning component 35, first fixing plate 351, rotating sleeve 352, paddle 353, arc-shaped pressure block 354, positioning rod 355, protrusion 356, spring 357, positioning groove 36, firing handle 4, locking assembly 5, second fixing plate 51, sliding groove 52, movable rod 53, connecting rod 54, locking nut 55. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 5 As shown, this utility model provides an anorectal stapler that is easy to maintain, including a stapler body 1, a cutting component 2 at one end of the stapler body 1, a connecting component 3 at one end of the cutting component 2, and a mounting rod 31 at one end of the mounting rod 31 fixedly connected to the cutting component 2. A mounting groove 33 is provided at one end of the stapler body 1 to slide with the mounting rod 31. A plurality of guide blocks 32 are fixedly connected to the outer side of the mounting rod 31 and are distributed at equal angles around the mounting rod 31. A plurality of guide grooves 34 are provided on the inner wall of the mounting groove 33 to slide with the corresponding guide blocks 32. A positioning element 35 is provided on the outer side of the stapler body 1 for positioning and fixing the mounting rod 31.

[0022] During installation, the mounting rod 31 is inserted into the mounting slot 33, and the guide block 32 engages with the corresponding guide slot 34. Then, the mounting rod 31 is positioned and fixed by the positioning element 35, which enables the rapid installation of the kissing and cutting assembly 2. Similarly, by operating the positioning element 35, the fixing of the mounting rod 31 can be released, allowing the mounting rod 31 to be pulled out directly from the mounting slot 33, thereby enabling the rapid disassembly of the kissing and cutting assembly 2. This facilitates the separate removal of the kissing and cutting assembly 2, making the operation convenient and thus facilitating the maintenance of the kissing and cutting assembly 2.

[0023] The positioning component 35 includes a first fixing plate 351, which is fixedly connected to the outside of the stapler body 1. A rotating sleeve 352 is rotatably connected to one side of the first fixing plate 351. The rotating sleeve 352 is fitted onto the outside of the stapler body 1. Several levers 353 are fixedly connected to the outside of the rotating sleeve 352. The levers 353 are distributed at equal angles around the rotating sleeve 352. The diameters at both ends of the rotating sleeve 352 are different. The inner diameter of one end of the rotating sleeve 352 is the same as the outer diameter of the stapler body 1, and the inner diameter of the other end of the rotating sleeve 352 is larger than the outer diameter of the stapler body 1. Several arc-shaped pressure blocks 354 are fixedly connected to the inner side of the rotating sleeve 352. Distributed at equal angles around the rotating sleeve 352, the inner side of the mounting groove 33 is slidably connected to several positioning rods 355, each corresponding to a curved surface pressure block 354. One end of each positioning rod 355 is slidably engaged with the mounting rod 31. The outer side of the mounting rod 31 is provided with several positioning grooves 36 that slidably engage with the positioning rods 355. The other end of each positioning rod 355 is fixedly connected to a protrusion 356. The curved surface pressure blocks 354 abut against the protrusions 356 by cooperating with the rotation of the rotating sleeve 352. Each positioning rod 355 is fitted with a spring 357. One end of each spring 357 abuts against the corresponding protrusion 356, and the other end of each spring 357 abuts against the outer wall of the anastomosis device body 1.

[0024] During installation, the mounting rod 31 is inserted into the mounting groove 33, and the guide block 32 is engaged with the corresponding guide groove 34. Then, the rotating sleeve 352 is operated to rotate, causing the arc-shaped pressure block 354 to abut against the corresponding protrusion 356, causing the protrusion 356 to slide. This causes all the positioning rods 355 to move closer to the positioning rod 355 and slide into the positioning groove 36 on the positioning rod 355. At this time, all the springs 357 are compressed and accumulate potential energy, thus fixing the positioning rod 355.

[0025] During disassembly, the rotating sleeve 352 is operated to rotate it in the opposite direction, causing the arc-shaped pressure block 354 to disengage from the corresponding protrusion 356. At this time, the spring 357 releases potential energy, which causes all the positioning rods 355 to disengage from the positioning groove 36. This allows the mounting rod 31 to be pulled out directly and disengaged from the mounting groove 33, thereby achieving quick disassembly of the kiss-cutting assembly 2. This makes it easy to remove the kiss-cutting assembly 2 separately, which is convenient and facilitates the maintenance of the kiss-cutting assembly 2.

[0026] The bottom end of the stapler body 1 is provided with a locking assembly 5. The locking assembly 5 includes two parallel second fixing plates 51. Each of the two second fixing plates 51 has a sliding groove 52. The inner side of the two sliding grooves 52 is slidably connected to a movable rod 53. The middle part of the movable rod 53 is rotatably connected to a connecting rod 54. The end of the connecting rod 54 away from the movable rod 53 is hinged to the firing handle 4 of the stapler body 1. Both ends of the movable rod 53 are threaded with locking nuts 55.

[0027] When installing or removing the anastomosis assembly 2, the movable rod 53 is fixed to the second fixed plate 51 by tightening the two locking nuts 55. This prevents the firing handle 4 of the anastomosis device body 1 from rotating, thereby locking the firing handle 4 of the anastomosis device body 1 and avoiding the problem of misoperation when installing or removing the anastomosis assembly 2.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A maintenance-friendly anorectal stapler, comprising a stapler body (1), wherein one end of the stapler body (1) is provided with a cutting assembly (2), characterized in that: One end of the anastomosis component (2) is provided with a connecting component (3), the connecting component (3) includes an installation rod (31), one end of the installation rod (31) is fixedly connected to the anastomosis component (2), one end of the stapler body (1) is provided with an installation groove (33) that slides with the installation rod (31), a plurality of guide blocks (32) are fixedly connected to the outside of the installation rod (31), the plurality of guide blocks (32) are distributed at equal angles around the installation rod (31), the inner wall of the installation groove (33) is provided with a plurality of guide grooves (34) that slide with the corresponding guide blocks (32), and the outside of the stapler body (1) is provided with a positioning element (35) for positioning and fixing the installation rod (31).

2. The easily maintainable anorectal stapler according to claim 1, characterized in that: The positioning component (35) includes a first fixing plate (351), which is fixedly connected to the outside of the stapler body (1). A rotating sleeve (352) is rotatably connected to one side of the first fixing plate (351). The rotating sleeve (352) is sleeved on the outside of the stapler body (1). A plurality of paddles (353) are fixedly connected to the outside of the rotating sleeve (352). The plurality of paddles (353) are distributed at equal angles around the rotating sleeve (352).

3. The easily maintainable anorectal stapler according to claim 2, characterized in that: The two ends of the rotating sleeve (352) have different diameters. The inner diameter of one end of the rotating sleeve (352) is the same as the outer diameter of the stapler body (1), and the inner diameter of the other end of the rotating sleeve (352) is larger than the outer diameter of the stapler body (1).

4. The easily maintainable anorectal stapler according to claim 1, characterized in that: The positioning component (35) further includes several arc-shaped pressure blocks (354), which are fixedly connected to the inner side of the rotating sleeve (352). The arc-shaped pressure blocks (354) are distributed at equal angles around the rotating sleeve (352). The inner side of the mounting groove (33) is slidably connected to several positioning rods (355) corresponding to the arc-shaped pressure blocks (354). One end of each positioning rod (355) is slidably engaged with the mounting rod (31), and the other end of each positioning rod (355) is fixedly connected to a protrusion (356). The arc-shaped pressure blocks (354) abut against the protrusions (356) by cooperating with the rotation of the rotating sleeve (352).

5. The easily maintainable anorectal stapler according to claim 4, characterized in that: Each of the positioning rods (355) is fitted with a spring (357), one end of each spring (357) abuts against a corresponding protrusion (356), and the other end of each spring (357) abuts against the outer wall of the anastomosis device body (1).

6. The easily maintainable anorectal stapler according to claim 5, characterized in that: The outer side of the mounting rod (31) is provided with several positioning grooves (36) that slide with the positioning rod (355).

7. The easily maintainable anorectal stapler according to claim 1, characterized in that: The bottom end of the stapler body (1) is provided with a locking assembly (5). The locking assembly (5) includes two parallel second fixing plates (51). Each of the two second fixing plates (51) has a sliding groove (52). The inner side of the two sliding grooves (52) is slidably connected to a movable rod (53). The middle part of the movable rod (53) is rotatably connected to a connecting rod (54). The end of the connecting rod (54) away from the movable rod (53) is hinged to the firing handle (4) of the stapler body (1). Both ends of the movable rod (53) are threadedly connected to locking nuts (55).

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