Endoscope anastomat with safety assembly

Abstract

The utility model discloses an endoscope anastomat with a safety assembly, which comprises a gun barrel part, the safety assembly and an anastomat body part, one end of the safety assembly is connected with the gun barrel part, the other end of the safety assembly is connected with the anastomat body part, and the endoscope anastomat is characterized in that the safety assembly is used for locking the anastomat body part. The utility model discloses an endoscope anastomat with a safety assembly, which can reduce the resistance when the assembly is installed and improve the use hand feeling of an instrument.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a laparoscope stapler with a safety component. Background Art

[0002] At present, minimally invasive surgery occupies an important position in surgical operations, among which, the removal of lesions is an important part of surgical operations. The current common method is that the surgical instrument has a long shaft or rod-like structure, and the shaft or rod is inserted into the lesion with the cooperation of the endoscope to remove the lesion. As a kind of surgical instrument, the working principle of the laparoscopic stapler is to clamp the stapler at the lesion site, remove it, and suture the lesion at the same time.

[0003] In practice, when using a stapler, the disposable component needs to be installed on the stapler gun body, and the closing trigger needs to be pulled to close the jaws and squeeze the tissue before the subsequent cutting and stapling action can be performed. However, the existing staplers are prone to misoperation during use, that is, when the disposable component has not been installed, the staff can still pull the closing trigger to trigger the stapler, which is very likely to cause misoperation or damage the stapler.

[0004] The utility model aims to provide a reliable, low-cost, simple-to-assemble insurance structure, which reduces the resistance when installing components and improves the use feel of the device. Summary of the invention

[0005] In order to solve the above technical problems, the technical solutions provided by the utility model are as follows:

[0006] A laparoscopic stapler with a safety assembly comprises a barrel component, a safety assembly and a body component, wherein one end of the safety assembly is connected to the barrel component, and the other end of the safety assembly is connected to the body component, and the characteristic is that the safety assembly is used to lock the body component.

[0007] Furthermore, the gun barrel component comprises a gun barrel (101), a steering lock (102), a steering lock compression spring (103), a closing compression spring (104), a closing push block (105), and a closing push block pin (107);

[0008] The proximal end of the gun barrel (101) passes through the closing push block (105), and the closing push block pin (107) is inserted into the closing push block (105);

[0009] The closing compression spring (104) and the steering lock compression spring (103) are sequentially inserted from the distal end of the gun barrel (101);

[0010] The steering lock (102) is buckled on the gun barrel (101) to resist the steering lock compression spring (103).

[0011] Furthermore, the body part includes a main frame (301), a rack (302), a reset button (303), and a reset button spring (304);

[0012] The closing compression spring (104) is stuck between the closing push block (105) and the main frame (301).

[0013] The rack (302) is located in a groove of the main frame (301);

[0014] The reset button (303) is fixed to the main frame (301) via a pin;

[0015] The reset button spring (304) is located at a spring slot on the main frame (301).

[0016] Furthermore, the safety assembly comprises a closing trigger (201), a fixing pin (202), a torsion spring (203), a closing safety (204), a tension spring (205), a push rod spring (206), and a safety push rod (207);

[0017] The closing trigger (201) is connected to the closing safety (204) via a fixing pin, and the closing trigger (201) is fixed to the first hole groove (301b) of the main frame via the fixing pin (202);

[0018] The torsion spring (203) presses the closing safety (204) and is fixed on the closing trigger (201);

[0019] The tension spring (205) is fixed to the main frame (301)

[0020] The surface of the safety push rod (207) is provided with a groove (207b) for accommodating the push rod spring (206).

[0021] Furthermore, a safety push rod protrusion (207a) is provided at the end of the safety push rod (207), and a protrusion slot (204a) is correspondingly provided on the closing safety (204);

[0022] The closing safety (204) is provided with a push block pin slot (204b) for snapping into the closing push block pin (107);

[0023] The closure safety (204) is provided with a closure safety protrusion (204c), and the main frame (301) is correspondingly provided with a closure safety protrusion slot (301a).

[0024] Furthermore, when the nailless magazine assembly is installed on the gun barrel component, the steering lock compression spring (103) is not compressed, the steering lock (102) is in an initial position, the safety push rod (207) is away from the body of the gun under the thrust of the push rod spring (206), the safety push rod protrusion (207a) presses the closing safety (204), and the closing safety protrusion (204c) contacts the closing safety protrusion slot (301a), so that the trigger (201) cannot be closed.

[0025] Furthermore, when the nail magazine assembly is installed on the gun barrel component, the assembly pushes the push piece (111), and through the transmission of the push piece (111), the push piece pressure block (110) and the firing rod sleeve (109), the steering lock (102) moves toward the main frame (301), the closing safety (204) is lifted, the safety push rod protrusion (207a) is inserted into the protrusion slot (204a), and the closing push block pin (107) is inserted into the push block pin slot (204b), and the trigger (201) is closed.

[0026] After adopting such a design, the utility model has at least the following advantages:

[0027] (1) The laparoscopic stapler with a safety component designed in the utility model reduces the resistance when the component is inserted, thereby improving the feel of the instrument when used.

[0028] (2) The laparoscopic stapler with a safety component designed in the present invention realizes the function that the trigger cannot be closed when the component is not present, thus playing a role of safety.

[0029] (3) The utility model has a simple structure, good effect, low cost and easy process implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Figure 1 It is a schematic diagram of the structure of a gun barrel component of an embodiment of the utility model;

[0032] Figure 2 This is a schematic diagram of the insurance structure of an embodiment of the utility model;

[0033] Figure 3 This is a schematic diagram of the insurance structure of an embodiment of the utility model;

[0034] Figure 4 This is a schematic diagram of the main skeleton structure of an embodiment of the utility model;

[0035] Figure 5 This is a schematic diagram of a closed safety structure of an embodiment of the utility model;

[0036] Figure 6 This is a schematic diagram of the structure of a safety push rod in one embodiment of the utility model;

[0037] Figure 7 This is a schematic diagram of a closed safety state when the disposable component of one embodiment of the utility model is not installed;

[0038] Figure 8 This is a schematic diagram of a closed safety state of a disposable component of an embodiment of the utility model when it is installed;

[0039] In the accompanying drawings, 1-barrel component; 2-trigger safety structure; 3-body component; 101-barrel, 102-steering lock, 103-steering lock compression spring, 104-closing compression spring, 105-closing push block, 106-barrel inner core, 107-closing push block pin, 108-firing rod, 109-firing rod sleeve, 110-push piece pressure block, 111-push piece; 201-closing trigger, 202-fixing pin, 203-torsion spring, 204 -closing safety, 204a-protrusion slot, 204b-push block pin slot, 204c-closing safety protrusion, 205-tension spring, 206-push rod spring, 207-safety push rod, 207a-safety push rod protrusion, 207b-groove, 208-safety cover; 301-main frame, 301a-closing safety protrusion slot, 301b-first hole slot, 302-rack, 303-reset button, 304-reset button spring. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0041] In this document, “up”, “down”, “pitch”, “yaw”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0042] Unless otherwise stated, the numerical ranges herein include not only the entire range within its two endpoints but also include several sub-ranges contained therein.

[0043] The end of each component close to the operator is defined as the proximal end, and the end away from the operator is defined as the distal end. The expressions of the proximal end and the distal end are only used to make the description simple and clear, and should not be understood as any limitation of the present invention.

[0044] like Figure 1-8 As shown, an embodiment of the utility model provides a laparoscopic stapler with a safety assembly, including a barrel component, a safety assembly and a body component, one end of the safety assembly is connected to the barrel component, and the other end of the safety assembly is connected to the body component, and the safety assembly is used to lock the body component.

[0045] The gun barrel component comprises a gun barrel (101), a steering lock (102), a steering lock compression spring (103), a closing compression spring (104), a closing push block (105), and a closing push block pin (107);

[0046] The proximal end of the gun barrel (101) passes through the closing push block (105), and the closing push block pin (107) is inserted into the closing push block (105);

[0047] The closing compression spring (104) and the steering lock compression spring (103) are inserted into the gun barrel (101) from the far end in sequence;

[0048] The steering lock (102) is buckled on the gun barrel (101) to resist the steering lock compression spring (103).

[0049] The gun barrel component also includes: a gun barrel inner core (106), a firing rod (108), a firing rod sleeve (109), a push piece pressing block (110), and a push piece (111);

[0050] The firing rod sleeve (109) and the push piece pressing block (110) are sequentially axially inserted into the firing rod (108), and the push piece (111) is fixed to the firing rod (108) through the push piece pressing block (110); after the firing rod (108), the firing rod sleeve (109), the push piece pressing block (110), and the push piece (111) are assembled, they are inserted into the gun barrel inner core (106), and then the gun barrel inner core 1 (06) is inserted into the gun barrel (101).

[0051] The body parts include a main frame (301), a rack (302), a reset button (303), and a reset button spring (304);

[0052] The closing compression spring (104) is stuck between the closing push block (105) and the main frame (301);

[0053] The rack (302) is located in the groove of the main frame (301);

[0054] The reset button (303) is fixed to the main frame (301) by a pin;

[0055] The reset button spring (304) is located at the spring slot on the main frame (301).

[0056] The safety assembly comprises a closing trigger (201), a fixing pin (202), a torsion spring (203), a closing safety (204), a tension spring (205), a push rod spring (206), and a safety push rod (207);

[0057] The closing trigger (201) is connected to the closing safety (204) via a fixing pin, and the closing trigger (201) is fixed to the first hole groove (301b) of the main frame via the fixing pin (202);

[0058] The torsion spring (203) presses the closing safety (204) to be fixed on the closing trigger (201);

[0059] The tension spring (205) is fixed to the main frame (301);

[0060] The surface of the safety push rod (207) is provided with a groove (207b) for accommodating the push rod spring (206).

[0061] The safety assembly also includes a safety upper cover (208). When the push rod spring (206) penetrates into the groove (207b) of the safety push rod, it will be fixed on the safety upper cover (208).

[0062] The end of the safety push rod (207) is provided with a safety push rod protrusion (207a), and the closing safety (204) is correspondingly provided with a protrusion slot (204a);

[0063] The closing safety (204) is provided with a push block pin slot (204b) for snapping in the closing push block pin (107);

[0064] The closing safety (204) is provided with a closing safety protrusion (204c), and the main frame (301) is correspondingly provided with a closing safety protrusion slot (301a).

[0065] When the barrel component is inserted into the body component, the barrel inner core (106) is inserted into the groove of the main frame (301), the firing rod (108) is embedded in the groove at the far end of the rack (302), the closing compression spring (104) pushes the closing push block (105) to press on the side wall of the main frame (301), and the steering lock compression spring (103) pushes the steering lock (102) away from the main frame (301).

[0066] The push rod spring (206) penetrates into the safety push rod (207b) and fixes the safety upper cover (208) to buckle into the main frame (301).

[0067] The proximal end of the gun barrel inner core (106) is inserted into the groove of the main frame (301), the firing rod (108) is embedded in the groove of the head of the rack (302), the closing compression spring (104) pushes the closing push block (105) to press on the side wall of the main frame (301), the steering lock compression spring (103) pushes the steering lock (102) away from the main frame (301), and the push rod spring (206) penetrates into the safety push rod (207b) and fixes the safety upper cover (208) to buckle into the main frame (301).

[0068] When the nailless magazine assembly is installed on the barrel component, the steering lock compression spring (103) is not compressed, the steering lock (102) is in the initial position, the safety push rod (207) is away from the body under the thrust of the push rod spring (206), the safety push rod protrusion (207a) presses the closing safety (204) and cannot be lifted, at this time, the closing safety protrusion (204c) contacts the closing safety protrusion slot (301a), so that the trigger (201) cannot be closed.

[0069] When the magazine assembly is mounted on the gun barrel component, the assembly pushes the push piece (111) to move, and the power transmission of the push piece (111), the push piece pressing block (110) and the firing rod sleeve (109) causes the steering lock (102) to move toward the main frame (301). At this time, the steering lock (102) pushes the safety push rod (207) to move toward the device direction. At this time, the closing safety (204) is lifted, and the safety push rod protrusion (207a) is inserted into the protrusion slot (204a), and the closing push block pin (107) is inserted into the push block pin slot (204b). At this time, the trigger (302) can be closed. After closing, the closing trigger (201) is inserted into the edge of the reset button (303) to fix the trigger.

[0070] Pressing the reset button (303) causes the closing trigger (201) to reset through the action of the closing compression spring (104). After the assembly is removed, the steering lock (102) is reset under the action of the steering lock compression spring (103), and at the same time, the safety push rod (207) is reset under the action of the rod spring (206), and the closing safety (204) is reset under the pressure of the safety push rod (207).

[0071] After adopting such a design, the utility model has at least the following advantages:

[0072] (1) The laparoscopic stapler with a safety component designed in the utility model reduces the resistance when the component is inserted, thereby improving the feel of the instrument when used.

[0073] (2) The laparoscopic stapler with a safety component designed in the present invention realizes the function that the trigger cannot be closed when the component is not present, thus playing a role of safety.

[0074] (3) The utility model has a simple structure, good effect, low cost and easy process implementation.

[0075] After considering the invention disclosed in the specification and examples, those skilled in the art will easily think of other embodiments of the utility model. This application is intended to cover any modification, use or adaptation of the utility model, which follows the general principles of the utility model and includes common knowledge or customary technical means in the art that are not disclosed in the utility model. The specification and examples are regarded as exemplary only, and the true scope and spirit of the utility model are indicated by the following claims.

[0076] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A laparoscopic stapler with a safety assembly, comprising a barrel component, a safety assembly and a body component, wherein one end of the safety assembly is connected to the barrel component, and the other end of the safety assembly is connected to the body component, characterized in that: The safety assembly is used to lock the body component; The gun barrel component comprises a gun barrel (101), a steering lock (102), a steering lock compression spring (103), a closing compression spring (104), a closing push block (105), and a closing push block pin (107); The proximal end of the gun barrel (101) passes through the closing push block (105), and the closing push block pin (107) is inserted into the closing push block (105); The closing compression spring (104) and the steering lock compression spring (103) are sequentially inserted from the distal end of the gun barrel (101); The steering lock (102) is buckled on the gun barrel (101) to resist the steering lock compression spring (103).

2. The laparoscopic stapler with a safety assembly as claimed in claim 1, characterized in that: The body parts include a main frame (301), a rack (302), a reset button (303), and a reset button spring (304); The closing compression spring (104) is stuck between the closing push block (105) and the main frame (301); The rack (302) is located in a groove of the main frame (301); The reset button (303) is fixed to the main frame (301) via a pin; The reset button spring (304) is located at a spring slot on the main frame (301).

3. The laparoscopic stapler with a safety assembly as claimed in claim 2, characterized in that: The safety assembly comprises a closing trigger (201), a fixing pin (202), a torsion spring (203), a closing safety (204), a tension spring (205), a push rod spring (206), and a safety push rod (207); The closing trigger (201) is connected to the closing safety (204) via a fixing pin, and the closing trigger (201) is fixed to the first hole groove (301b) of the main frame via the fixing pin (202); The torsion spring (203) presses the closing safety (204) and is fixed on the closing trigger (201); The tension spring (205) is fixed to the main frame (301) The surface of the safety push rod (207) is provided with a groove (207b) for accommodating the push rod spring (206).

4. The laparoscopic stapler with a safety assembly as claimed in claim 3, characterized in that: The end of the safety push rod (207) is provided with a safety push rod protrusion (207a), and the closing safety (204) is correspondingly provided with a protrusion slot (204a); The closing safety (204) is provided with a push block pin slot (204b) for snapping into the closing push block pin (107); The closure safety (204) is provided with a closure safety protrusion (204c), and the main frame (301) is correspondingly provided with a closure safety protrusion slot (301a).

5. The laparoscopic stapler with a safety assembly as claimed in claim 4, characterized in that: When the nailless magazine assembly is installed on the gun barrel component, the steering lock compression spring (103) is not compressed, the steering lock (102) is in the initial position, the safety push rod (207) is away from the body of the gun under the thrust of the push rod spring (206), the safety push rod protrusion (207a) presses the closing safety (204), and the closing safety protrusion (204c) contacts the closing safety protrusion slot (301a), so that the trigger (201) cannot be closed.

6. The laparoscopic stapler with a safety assembly as claimed in claim 4, characterized in that: When the magazine assembly is installed on the gun barrel component, the assembly pushes the push piece (111), and through the transmission of the push piece (111), the push piece pressure block (110) and the firing rod sleeve (109), the steering lock (102) moves toward the main frame (301), the closing safety (204) is lifted, the safety push rod protrusion (207a) is inserted into the protrusion slot (204a), and the closing push block pin (107) is inserted into the push block pin slot (204b), and the trigger (201) is closed.

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