Safe endoscope anastomat

Abstract

The utility model discloses a safe endoscope anastomat, and belongs to the technical field of medical instruments. The safe endoscope anastomat comprises a mounting shell, a percussion rack, a safety unit, a connecting rod assembly and a percussion handle part, a containing cavity is formed in the mounting shell, the percussion rack is arranged in the mounting shell, the percussion handle part is rotationally connected with the mounting shell, and the percussion rack can move in the first direction by rotating the percussion handle part; the safety unit comprises a swing limiting piece, and the first end of the swing limiting piece is rotationally connected with the mounting shell; one end of the connecting rod assembly is in transmission connection with the percussion handle piece, the other end of the connecting rod assembly is in transmission connection with the swing limiting piece, and the percussion handle piece is rotated so that the second end of the swing limiting piece can be away from the percussion rack and unlocked with the percussion rack or close to the percussion rack and locked with the percussion rack. In the non-percussion state, the percussion rack is ensured not to displace, and the use safety of the endoscope anastomat is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, and it is a safe type endoscope anastomat. BACKGROUND

[0002] Endoscopic surgery, also known as minimally invasive surgery, is a surgical method that uses a small incision to place instruments into the body cavity (such as the abdominal cavity, uterine cavity, chest cavity, etc.), and then uses a television screen to check, diagnose and treat diseases in the cavity. Its principle lies in using modern optics, electronics, machinery and other high-tech means to send surgical instruments and camera equipment into the human body through a small incision, and the surgeon can clearly observe the situation of the surgical area through the real-time image on the television screen and perform precise surgical operations.

[0003] Endoscopic anastomat is one of the important instruments for endoscopic surgery, and is also called endoscopic cutting anastomat and disposable cartridge, which is used for disconnection, resection, anastomosis and other operations of tissues under endoscopic surgery.

[0004] However, the firing rack in the prior art has the problem of premature firing due to inertia when the firing handle assembly is not driven, which reduces the safety of the endoscopic anastomat.

[0005] Therefore, there is an urgent need to provide a safe endoscopic anastomat to solve the above problems. SUMMARY

[0006] The utility model aims at providing a safe endoscopic anastomat, which ensures that the firing rack does not displace in the non-firing state, thereby improving the safety of the endoscopic anastomat.

[0007] To achieve the above-mentioned purpose, the following technical solutions are provided:

[0008] The safe endoscopic anastomat comprises a mounting shell, a firing rack and a firing handle assembly, the mounting shell has a receiving cavity therein, the firing rack is arranged in the mounting shell, the firing handle assembly is rotationally connected with the mounting shell, and rotating the firing handle assembly can move the firing rack in a first direction, and the safe endoscopic anastomat further comprises:

[0009] The safety unit comprises a swing limiting piece, and the first end of the swing limiting piece is rotationally connected with the mounting shell.

[0010] The link assembly has one end in transmission connection with the firing handle assembly and the other end in transmission connection with the swing limiting piece, and rotating the firing handle assembly can make the second end of the swing limiting piece away from the firing rack and unlocked or close to the firing rack and locked.

[0011] As an alternative of the safety type endoscopic anastomat, the swing limiting piece is provided with a protruding column, and the connecting rod assembly comprises:

[0012] An adapter connecting rod is arranged in the mounting shell, a first end of the adapter connecting rod is hingedly connected with the firing handle member;

[0013] A pulling connecting rod, a first end of the pulling connecting rod is hingedly connected with a second end of the adapter connecting rod, and a second end of the pulling connecting rod is provided with a guide sliding groove, and an end of the protruding column away from the swing limiting piece is arranged in the guide sliding groove.

[0014] As an alternative of the safety type endoscopic anastomat, a first pin shaft is arranged at the first end of the adapter connecting rod, the firing handle member is provided with a first through hole, and the first pin shaft is movably arranged in the first through hole.

[0015] As an alternative of the safety type endoscopic anastomat, a second pin shaft is arranged at the second end of the adapter connecting rod, and a second through hole is arranged at the first end of the pulling connecting rod, and the second pin shaft is movably arranged in the second through hole.

[0016] As an alternative of the safety type endoscopic anastomat, a central shaft is arranged at the first end of the swing limiting piece, and a central hole is arranged in the mounting shell, and the central shaft is movably arranged in the central hole.

[0017] As an alternative of the safety type endoscopic anastomat, a hook hole is arranged on the firing handle member, and the safety type endoscopic anastomat further comprises an elastic reset member arranged in the mounting shell, one end of the elastic reset member is fixedly connected with the mounting shell, and the other end of the elastic reset member is connected with the hook hole.

[0018] As an alternative of the safety type endoscopic anastomat, a wedge-shaped part is arranged at the second end of the swing limiting piece, a protruding part is arranged on a side of the firing rack close to the swing limiting piece, and the wedge-shaped part can block the protruding part.

[0019] As an alternative of the safety type endoscopic anastomat, a plurality of one-way teeth are arranged at a side of the firing rack close to the firing handle member along a first direction, a pushing block is arranged on a side of the firing handle member close to the firing handle member, and the pushing block can be engaged with the one-way teeth for transmission.

[0020] As an alternative of the safety type endoscopic anastomat, an anti-slip structure is arranged on an outer wall surface of the firing handle member.

[0021] As an alternative of the safety type endoscopic anastomat, a reinforcing rib is arranged on an inner wall surface of the mounting shell.

[0022] Compared with the prior art, the utility model discloses the beneficial effects that

[0023] The safety type endoscope anastomat provided by the utility model sets the firing rack in the installation shell, and the rotation of the firing handle part can make the firing rack move along the first direction, and is used for the firing of disposable nail cassettes, wherein the swing limiting piece of the safety unit is set in the installation shell, and the swing limiting piece is used for locking or unlocking with the firing rack. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment of the utility model will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the contents of the embodiment of the utility model and these drawings without paying the creative labor for the ordinary skilled in the art.

[0025] Figure 1 It is the assembly schematic view that the safety type endoscope anastomat in the embodiment of the utility model is in the state of not firing and being locked.

[0026] Figure 2 It is the assembly schematic view that the safety type endoscope anastomat in the embodiment of the utility model is in the state of firing and unlocking.

[0027] Figure 3 It is the principle schematic view that the firing rack in the embodiment of the utility model is in the state of not firing and being locked.

[0028] Figure 4 It is the principle schematic view that the firing rack in the embodiment of the utility model is in the state of firing and unlocking.

[0029] Figure 5 It is the explosion schematic view of the connecting rod assembly in the embodiment of the utility model.

[0030] Figure 6 It is the structure schematic view of the swing limiting piece in the embodiment of the utility model.

[0031] Figure 7 It is the structure schematic view of the firing handle part in the embodiment of the utility model.

[0032] Figure 8The structure schematic diagram of the mounting shell in the embodiment of the utility model.

[0033] Reference signs:

[0034] 1, mounting shell; 11, center hole; 12, reinforcing rib; 2, firing rack; 3, firing hand component; 4, safety unit; 5, connecting rod assembly; 6, elastic reset member;

[0035] 21, one-way tooth; 22, protruding part;

[0036] 31, first through hole; 32, hook hole; 33, push block;

[0037] 41, swing limiting piece; 411, protruding column; 412, center shaft; 413, wedge part;

[0038] 51, adapter connecting rod; 511, first pin shaft; 512, second pin shaft; 52, pull connecting rod; 521, guide sliding slot; 522, second through hole. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model more clear, the technical scheme in the embodiment of the utility model will be described clearly and completely below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiments of the utility model, not all the embodiments. The components of the embodiment of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0040] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the utility model product when it is usually placed, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0041] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0042] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and are not to be understood as limiting the present application.

[0043] In order to ensure that the firing rack does not displace when in a non-firing state and improve the use safety of the endoscope anastomat, the present embodiment provides a safety endoscope anastomat, which is described below in combination with Figures 1 to 8 The specific content of the present embodiment is described in detail. It should be noted that the first direction mentioned in the present embodiment is the X direction in Figure 1 the figure, the head of the X direction arrow is the direction of the forward movement of the firing rack, and the tail of the X direction arrow is the direction of the backward movement of the firing rack.

[0044] The safety endoscope anastomat in the present embodiment comprises a mounting shell 1, a firing rack 2, a firing handle component 3, an insurance unit 4, and a connecting rod assembly 5. The mounting shell 1 has a containing cavity therein, the firing rack 2 is arranged in the mounting shell 1, the firing handle component 3 is rotationally connected with the mounting shell 1, and rotating the firing handle component 3 can move the firing rack 2 in the first direction. The first end of the swing limiting piece 41 of the insurance unit 4 is rotationally connected with the mounting shell 1. One end of the connecting rod assembly 5 is in transmission connection with the firing handle component 3, and the other end of the connecting rod assembly 5 is in transmission connection with the swing limiting piece 41, and rotating the firing handle component 3 can make the second end of the swing limiting piece 41 away from the firing rack 2 and be unlocked with the firing rack 2 or close to the firing rack 2 and be locked with the firing rack 2.

[0045] In short, the safety endoscope anastomat provided in the present embodiment sets the firing rack 2 in the mounting shell 1, rotating the firing handle component 3 can move the firing rack 2 in the first direction, for the firing of a disposable cartridge, wherein the swing limiting piece 41 of the insurance unit 4 is arranged in the mounting shell 1, and the swing limiting piece 41 is used to lock or unlock with the firing rack 2. When the safety endoscope anastomat is in an unfired state, the swing limiting piece 41 is locked with the firing rack 2, which can ensure that the firing rack 2 does not displace, and improve the use safety of the endoscope anastomat. The connecting rod assembly 5 is arranged between the firing handle component 3 and the swing limiting piece 41, and under the transmission action of the connecting rod assembly 5, when the firing handle component 3 is rotated, the swing limiting piece 41 is unlocked with the firing rack 2, and at the same time, the firing handle component 3 drives the firing rack 2 to move in the first direction to complete the firing of the cartridge.

[0046] Furthermore, the swing limiter 41 is provided with a protruding post 411. The linkage assembly 5 includes a transition link 51 and a pulling link 52. The transition link 51 is disposed within the mounting housing 1, and its first end is hinged to the firing handle 3. The first end of the pulling link 52 is hinged to the second end of the transition link 51, and the second end of the pulling link 52 is provided with a guide groove 521. The end of the protruding post 411 away from the swing limiter 41 passes through the guide groove 521. The protruding post 411 on the swing limiter 41 can slide within the guide groove 521. When the firing handle 3 is held, the upper structure of the firing handle 3 will push the adapter link 51 and the pull link 52 forward. When the protruding post 411 touches the inner wall of the guide groove 521, the pull link 52 will continue to push the protruding post 411, and the swing limiter 41 will rotate relative to the mounting housing 1, thereby moving the swing limiter 41 away from the firing rack 2 and unlocking the firing rack 2.

[0047] For example, such as Figure 4 Combination Figure 5 As shown, the first end of the adapter rod 51 is provided with a first pin 511, and the firing handle 3 is provided with a first through hole 31. The first pin 511 is movably inserted into the first through hole 31. After the first pin 511 is inserted into the first through hole 31, the adapter rod 51 can rotate relative to the firing handle 3.

[0048] For example, the second end of the adapter link 51 is provided with a second pin 512, and the first end of the pull link 52 is provided with a second through hole 522. The second pin 512 is movably inserted into the second through hole 522. After the second pin 512 is inserted into the second through hole 522, the pull link 52 can rotate relative to the adapter link 51.

[0049] For example, such as Figure 2 , Figure 6 Combination Figure 8 As shown, the first end of the swing limiting member 41 is provided with a central shaft 412, and a central hole 11 is provided inside the mounting housing 1. The central shaft 412 is movably inserted into the central hole 11. When the central shaft 412 is inserted into the central hole 11, the first end of the swing limiting member 41 can rotate relative to the mounting housing 1.

[0050] Furthermore, such as Figure 1 Combination Figure 7 As shown, the firing handle 3 is provided with a hook hole 32. The safety endoscopic stapler also includes an elastic reset member 6 disposed within the mounting housing 1. One end of the elastic reset member 6 is fixedly connected to the mounting housing 1, and the other end of the elastic reset member 6 is connected to the hook hole 32. Optionally, the elastic reset member 6 can be a spring. When the firing handle 3 is gripped, the elastic reset member 6 is in a stretched state; when the firing handle 3 is released, the elastic reset member 6 can reset the firing handle 3, facilitating the next firing.

[0051] Further, in some application scenarios, such as Figure 4 In combination with Figure 6 As shown, the second end of the swing limiting piece 41 is provided with a wedge-shaped part 413, and the side of the firing rack 2 close to the swing limiting piece 41 is provided with a protruding part 22, and the wedge-shaped part 413 can block the protruding part 22. By adding the protruding part 22 on the firing rack 2, when the firing handle assembly 3 is reset, the swing limiting piece 41 will be pulled back, and then the wedge-shaped part 413 can be in abutment with the protruding part 22, preventing the firing rack 2 from moving forward.

[0052] Further, the side of the firing rack 2 close to the firing handle assembly 3 is provided with a plurality of one-way teeth 21 in the first direction, and the side of the firing handle assembly 3 close to the firing handle assembly 3 is provided with a pushing block 33, and the pushing block 33 can be in meshing transmission with the one-way teeth 21. The pushing block 33 is provided with a limiting tooth, and the connection between the pushing block 33 and the firing handle assembly 3 is provided with a torsional spring, which makes the pushing block 33 move forward and mesh with the one-way teeth 21 under the action of the torsional spring. It can be understood that in other application scenarios, the wedge-shaped part 413 can also be inserted between two adjacent one-way teeth 21 to limit the forward movement of the firing rack 2.

[0053] Further, the outer wall surface of the firing handle assembly 3 is provided with an anti-skid structure. The anti-skid structure in the embodiment can be but is not limited to an anti-skid protrusion, an anti-skid groove or an anti-skid pattern, which is not limited here.

[0054] Further, as shown in Figure 8 The inner wall surface of the mounting shell 1 is provided with a reinforcing rib 12. By adding the reinforcing rib 12, the overall structural strength of the mounting shell 1 is improved, and the service life is prolonged.

[0055] Note that the above is only a preferred embodiment of the present application and the technical principle applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A safety-type laparoscopic stapler, comprising a mounting housing (1), a firing rack (2), and a firing handle (3), wherein the mounting housing (1) has a receiving cavity, the firing rack (2) is disposed within the mounting housing (1), and the firing handle (3) is rotatably connected to the mounting housing (1), and rotating the firing handle (3) enables the firing rack (2) to move along a first direction, characterized in that, The safety type endoscopic anastomat further comprises: An insurance unit (4) comprising a swing limiting piece (41), a first end of the swing limiting piece (41) being rotationally connected with the mounting shell (1); A connecting rod assembly (5), one end of the connecting rod assembly (5) being drivingly connected with the firing handle member (3), the other end of the connecting rod assembly (5) being drivingly connected with the swing limiting piece (41), rotating the firing handle member (3) can make the second end of the swing limiting piece (41) away from the firing rack (2) and be unlocked with the firing rack (2) or close to the firing rack (2) and be locked with the firing rack (2).

2. The safety chamber stapler according to claim 1, wherein, The swing limiting piece (41) is provided with a protruding column (411), and the connecting rod assembly (5) comprises: An adapter connecting rod (51) provided in the mounting shell (1), a first end of the adapter connecting rod (51) being hingedly connected with the firing handle member (3); A pulling connecting rod (52), a first end of the pulling connecting rod (52) being hingedly connected with a second end of the adapter connecting rod (51), a second end of the pulling connecting rod (52) being provided with a guide sliding groove (521), and one end of the protruding column (411) away from the swing limiting piece (41) being provided in the guide sliding groove (521).

3. The safety chamber stapler according to claim 2, wherein, The first end of the adapter connecting rod (51) is provided with a first pin shaft (511), the firing handle member (3) is provided with a first through hole (31), and the first pin shaft (511) is movably inserted in the first through hole (31).

4. The safety chamber stapler according to claim 2, wherein, The second end of the adapter connecting rod (51) is provided with a second pin shaft (512), the first end of the pulling connecting rod (52) is provided with a second through hole (522), and the second pin shaft (512) is movably inserted in the second through hole (522).

5. The safety chamber stapler according to claim 2, wherein, The first end of the swing limiting piece (41) is provided with a central shaft (412), the mounting shell (1) is provided with a central hole (11), and the central shaft (412) is movably provided in the central hole (11).

6. The safety chamber stapler according to claim 2, wherein, The firing handle member (3) is provided with a hook hole (32), and the safety type endoscopic anastomat further comprises an elastic reset member (6) provided in the mounting shell (1), one end of the elastic reset member (6) being fixedly connected with the mounting shell (1), and the other end of the elastic reset member (6) being connected with the hook hole (32).

7. The safety chamber stapler according to claim 2, wherein, The second end of the swing limiting piece (41) is provided with a wedge-shaped part (413), one side of the firing rack (2) close to the swing limiting piece (41) is provided with a protruding part (22), and the wedge-shaped part (413) can block the protruding part (22).

8. The safety chamber stapler according to claim 7, wherein, One side of the firing rack (2) close to the firing handle member (3) is provided with a plurality of one-way teeth (21) in a first direction, one side of the firing handle member (3) close to the firing handle member (3) is provided with a pushing block (33), and the pushing block (33) can be in meshing transmission with the one-way teeth (21).

9. The safety chamber stapler according to any one of claims 1-8, wherein, An outer wall surface of the firing handle member (3) is provided with an anti-skid structure.

10. The safety chamber stapler according to claim 9, wherein, The inner wall surface of the mounting case (1) is provided with reinforcing ribs (12).

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