Endoscope anastomat with turning motion structure

Abstract

The utility model relates to the technical field of anastomats, in particular to an endoscope anastomat with a turning motion structure. According to the endoscope anastomat with the turning motion structure, the anastomat body and the clamp are connected through the sleeve, locking and unlocking of the sleeve and the clamp are controlled through the turning assembly arranged in the sleeve, and therefore the clamp can freely rotate after making contact with the locking state; and therefore, the rotating angle of the clamp can be freely adjusted, and the locking stability and rapidness of the clamp are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of staplers, in particular to a laparoscope stapler with a turning motion structure. Background Art

[0002] Laparoscopic staplers are one of the important instruments in laparoscopic surgery, replacing traditional manual suturing to separate or staple tissues. Due to the small surgical space under laparoscopy, manual operation is difficult for deep lesions. Laparoscopic staplers make the surgical process easier and more accurate, greatly reducing the difficulty of the doctor's operation during the operation.

[0003] The joint end of the stapler currently used in clinical practice in China has a small left-right bending angle. In clinical use, the jaws are in a narrow minimally invasive cavity, and due to the limited angle adjustment, it is difficult to cope with the actual situation of various lesions with tricky locations.

[0004] In response to the above-mentioned problems, domestic medical device manufacturers have developed a new generation of laparoscopic staplers with bending and rotating joint ends, such as the invention patent with publication number CN201780018611.0, which realizes the motion structure of an asymmetric joint through a keel joint structure and gear transmission to achieve a larger bending angle. However, in order to realize the rotation of the clamp, it is usually necessary to release the clamp lock and then lock the clamp after rotating to the corresponding angle. The locking method of the above technology is relatively complicated and unstable.

[0005] Therefore, how to improve the quickness and stability of locking and unlocking the clamp is an urgent problem to be solved. Utility Model Content

[0006] In order to solve the technical problems mentioned in the background technology, the utility model provides a laparoscopic stapler with a turning motion structure.

[0007] In a first aspect, the utility model provides a laparoscopic stapler with a turning motion structure, comprising: a device body and a sleeve arranged at the front end of the device body;

[0008] A clamp is provided at the front end of the sleeve; and

[0009] A steering assembly is arranged in the sleeve, and the steering assembly is connected with the clamp to drive the clamp to rotate.

[0010] Furthermore, the steering assembly comprises: a steering tie rod, a steering lock rod and a steering ring; wherein

[0011] One end of the steering tie rod is connected to the limiting wheel on the device body, and the other end is connected to the steering lock rod;

[0012] The steering lock rod is connected to the steering ring, and the steering lock rod is suitable for releasing the lock from the steering ring when the limiting wheel drives the steering tie rod to move; and

[0013] The turning ring is connected to the clamp so as to allow the clamp to rotate freely after it is unlocked.

[0014] Further, the steering assembly further comprises: an inner sleeve;

[0015] The inner sleeve is arranged in the sleeve, and a first groove for accommodating a steering rod is provided on the upper part of the inner sleeve; and

[0016] A second groove for accommodating a cutting blade is provided below the inner sleeve;

[0017] One end of the cutting blade is connected to the device body, and the other end extends outward from the clamp.

[0018] Furthermore, a hook is provided at the head end of the steering tie rod;

[0019] The tail end of the steering lock rod is provided with a waist-shaped groove for accommodating the draw hook.

[0020] Furthermore, the steering ring is provided with a plurality of positioning grooves on the upper ring;

[0021] The head end of the steering lock rod is provided with a lock tooth, and the shape of the lock tooth is matched with the shape of the positioning groove.

[0022] Furthermore, a steering control seat connected to the clamp is provided at the front end of the steering ring;

[0023] A steering protrusion is arranged at the front end of the steering ring, and the steering protrusion is matched with a limiting groove provided on the steering control seat, so as to drive the steering ring to rotate when the steering control seat rotates following the clamp.

[0024] Furthermore, a pair of positioning protrusions are provided at the bottom of the steering ring;

[0025] A gap is left between the two positioning protrusions for the cutting blade to pass through.

[0026] Furthermore, a connecting piece is provided on the bottom surface of the positioning protrusion, and a rotating protrusion is provided on the connecting piece; and

[0027] The sleeve is provided with a through hole corresponding to the rotation convex point, so that the connecting piece can rotate around the rotation convex point.

[0028] Furthermore, the body of the device further comprises: a handle;

[0029] The limiting wheel is sleeved on the handle, and the limiting wheel is suitable for sliding along the horizontal section of the handle to drive the steering rod to move.

[0030] The beneficial effect of the utility model is that the laparoscopic stapler with a turning motion structure of the utility model connects the instrument body and the clamp through a sleeve, and controls the locking and unlocking of the sleeve and the clamp by a steering assembly arranged in the sleeve, so that the clamp can rotate freely after contacting the locked state, and then the clamp can freely adjust the rotation angle, thereby improving the stability and quickness of the clamp locking.

[0031] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic diagram of the three-dimensional structure of a laparoscopic stapler with a turning motion structure according to some embodiments is shown;

[0035] Figure 2 A schematic diagram of the inner sleeve structure of a laparoscopic stapler with a turning motion structure according to some embodiments is shown;

[0036] Figure 3 A schematic structural diagram of a steering rod of a laparoscopic stapler with a turning motion structure according to some embodiments is shown;

[0037] Figure 4 A schematic diagram of the internal structure of a laparoscopic stapler with a turning motion structure according to some embodiments is shown;

[0038] Figure 5 Shows Figure 4 The enlarged schematic diagram of point A in the middle;

[0039] Figure 6 Shows Figure 4The enlarged schematic diagram of point B in the middle;

[0040] Figure 7 A schematic diagram of the explosion state of the steering ring and the steering control seat is shown.

[0041] In the figure:

[0042] The device body 1, the limiting wheel 10, the sleeve 2, the steering assembly 21, the steering rod 211, the connecting hole 2110, the hook 2111, the steering lock rod 212, the waist groove 2120, the locking tooth 2121, the steering ring 213, the positioning groove 2130, the steering protrusion 2131, the positioning protrusion 2132, the connecting piece 2133, the steering control seat 214, the limiting groove 2140, the inner sleeve 22, the first groove 220, the clamp 3, and the cutting blade 4. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] like Figures 1 to 7 As shown, at least one embodiment provides a laparoscopic stapler with a turning motion structure, comprising: a body 1 and a sleeve 2 arranged at the front end of the body 1; a clamp 3 is arranged at the front end of the sleeve 2; and a steering assembly 21 is arranged in the sleeve 2, and the steering assembly 21 is connected to the clamp 3 to drive the clamp 3 to rotate.

[0045] In some embodiments, the device body 1 and the clamp 3 are connected by a sleeve 2, and the locking and unlocking of the sleeve 2 and the clamp 3 are controlled by a steering assembly 21 arranged in the sleeve 2, so that the clamp 3 can rotate freely after contacting the locked state, and then the clamp 3 can freely adjust the rotation angle, thereby improving the stability and speed of locking the clamp 3.

[0046] In some embodiments, the steering assembly 21 includes: a steering rod 211, a steering lock rod 212 and a steering ring 213; wherein one end of the steering rod 211 is connected to the limiting wheel 10 on the device body 1, and the other end is connected to the steering lock rod 212; the steering lock rod 212 is connected to the steering ring 213, and the steering lock rod 212 is suitable for unlocking the steering ring 213 when the limiting wheel 10 drives the steering rod 211 to move; and the steering ring 213 is connected to the clamp 3 to allow the clamp 3 to rotate freely after it is unlocked.

[0047] As a preferred embodiment, a connecting hole 2110 is provided at one end of the steering rod 211 connected to the limiting wheel 10, and the connection between the steering rod 211 and the limiting wheel 10 is achieved by installing the connecting hole 2110 to the corresponding connecting protrusion of the limiting wheel 10, and a hook 2111 is provided at one end of the steering rod 211 connected to the steering lock rod 212, and the connection between the steering rod 211 and the steering lock rod 212 is achieved by inserting the hook 2111 into the waist-shaped groove 2120 provided at the tail end of the steering lock rod 212.

[0048] In some embodiments, the steering assembly 21 also includes: an inner sleeve 22; the inner sleeve 22 is arranged in the sleeve 2, and a first groove 220 for accommodating the steering rod 211 is opened above the inner sleeve 22; and a second groove (not shown in the figure) for accommodating a cutting blade is opened below the inner sleeve 22; wherein one end of the cutting blade 4 is connected to the body 1, and the other end extends outward from the clamp 3.

[0049] In some embodiments, the steering lock rod 212 is connected to the steering ring 213, so that the steering lock rod 212 is moved to separate and contact the steering ring 213, thereby realizing the locking and releasing of the steering ring 213. Specifically, a plurality of positioning grooves 2130 are provided on the upper ring of the steering ring 213; a locking tooth 2121 is provided on the head end of the steering lock rod 212, and the shape of the locking tooth 2121 is adapted to the shape of the positioning groove 2130, so that the steering ring 213 is limited and locked when the locking tooth 2121 is inserted into the positioning groove 2130.

[0050] In some embodiments, the front end of the steering ring 213 is provided with a steering control seat 214 connected to the clamp 3; the front end of the steering ring 213 is provided with a steering protrusion 2131, and the steering protrusion 2131 is adapted to the limiting groove 2140 opened on the steering control seat 214, so as to drive the steering ring 213 to rotate when the steering control seat 214 rotates with the clamp 3.

[0051] In some embodiments, a pair of positioning protrusions 2132 are provided at the bottom of the turning ring 213; a gap is left between the two positioning protrusions 2132 for the cutting blade 4 to pass through, a connecting piece 2133 is provided on the bottom surface of the positioning protrusion 2132, and a rotating protrusion is provided on the connecting piece 2133; and a through hole corresponding to the rotating protrusion is opened on the sleeve 2 to enable the connecting piece 2133 to rotate around the rotating protrusion.

[0052] In some embodiments, the body 1 further includes: a handle;

[0053] The limiting wheel 10 is sleeved on the handle, and the limiting wheel 10 is suitable for sliding along the horizontal section of the handle to drive the steering rod 211 to move.

[0054] As a preferred embodiment, when the laparoscopic stapler is in the initial state, the locking teeth 2121 of the steering lock rod 212 engage with the positioning groove 2130 located in the middle position of the steering wheel. At this time, the clamp 3 cannot be rotated. When the clamp needs to be rotated, the unlocking action is performed first, that is, by pulling the limiting wheel 10. At this time, since the limiting wheel 10 is connected to the steering rod 211 and the steering rod 211 is rigid, the steering rod 211 will be pulled. Because the hook 2111 of the steering rod 211 cooperates with the waist groove 2120 of the steering lock rod 212, the steering lock rod 212 is also pulled, and the locking teeth of the steering lock rod 212 2121 is pulled out from the positioning groove 2130 located in the middle position of the steering wheel to complete the unlocking. Subsequently, the clamp 3 rotates freely. Since the clamp 3 and the steering wheel are connected through the steering control seat 214, the steering wheel can be driven to rotate synchronously when the clamp 3 rotates, and the cutting blade 4 is flexible, so that the cutting blade 4 itself is bent and elastically deformed during the rotation of the steering wheel, which will not affect the turning action. When the clamp 3 is rotated to the required angle, the limiting wheel 10 is pushed in the opposite direction, so that the steering lock rod 212 is reinserted into the corresponding positioning groove 2130 on the steering wheel, thereby completing the re-locking of the clamp 3.

[0055] In summary, the laparoscopic stapler with a turning motion structure of the utility model connects the body 1 and the clamp 3 through the sleeve 2, and controls the locking and unlocking of the sleeve 2 and the clamp 3 through the steering assembly 21 arranged in the sleeve 2, so that the clamp 3 can rotate freely after contacting the locked state, and then the clamp 3 can freely adjust the rotation angle, thereby improving the stability and quickness of the locking of the clamp 3.

[0056] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0058] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. With the above-mentioned ideal embodiments of the utility model as inspiration, through the above-mentioned description, relevant staff can make various changes and modifications without departing from the scope of the technical idea of ​​the utility model. The technical scope of the utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A laparoscopic stapler with a turning motion structure, characterized in that: include: A body and a sleeve arranged at the front end of the body; The front end of the sleeve is provided with a clamp; as well as A steering assembly is provided in the sleeve, and the steering assembly is connected to the clamp to lock the connection between the clamp and the sleeve; The steering assembly comprises: a steering tie rod, a steering lock rod and a steering ring; wherein One end of the steering tie rod is connected to the limiting wheel on the device body, and the other end is connected to the steering lock rod; The steering lock rod is connected to the steering ring, and the steering lock rod is suitable for releasing the lock from the steering ring when the limiting wheel drives the steering tie rod to move; and The turning ring is connected to the clamp so as to allow the clamp to rotate freely after it is unlocked; The steering assembly further includes: an inner sleeve; The inner sleeve is arranged in the sleeve, and a first groove for accommodating a steering rod is provided on the upper part of the inner sleeve; and A second groove for accommodating a cutting blade is provided below the inner sleeve; One end of the cutting blade is connected to the device body, and the other end extends outward from the clamp.

2. The laparoscopic stapler according to claim 1, characterized in that: The head end of the steering tie rod is provided with a draw hook; The tail end of the steering lock rod is provided with a waist-shaped groove for accommodating the draw hook.

3. The laparoscopic stapler according to claim 2, characterized in that: The upper ring of the steering ring is provided with a plurality of positioning grooves; The head end of the steering lock rod is provided with a lock tooth, and the shape of the lock tooth is matched with the shape of the positioning groove.

4. The laparoscopic stapler according to claim 3, characterized in that: The front end of the steering ring is provided with a steering control seat connected to the clamp; A steering protrusion is arranged at the front end of the steering ring, and the steering protrusion is matched with a limiting groove provided on the steering control seat, so as to drive the steering ring to rotate when the steering control seat rotates following the clamp.

5. The laparoscopic stapler according to claim 4, characterized in that: A pair of positioning protrusions are provided at the bottom of the turning ring; A gap is left between the two positioning protrusions for the cutting blade to pass through.

6. The laparoscopic stapler according to claim 5, characterized in that: A connecting piece is provided on the bottom surface of the positioning protrusion, and a rotating protrusion is provided on the connecting piece; and The sleeve is provided with a through hole corresponding to the rotation convex point, so that the connecting piece can rotate around the rotation convex point.

7. The laparoscopic stapler according to claim 6, characterized in that: The body also includes: a handle; The limiting wheel is sleeved on the handle, and the limiting wheel is suitable for sliding along the horizontal section of the handle to drive the steering rod to move.

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