Quick blade replacement structure of endoscope anastomat

By designing a quick-change structure for a laparoscopic stapler that includes a handle, operating components, mounting rod, and replacement components, the problems of unstable and cumbersome blade replacement were solved, enabling rapid and stable blade replacement and improving surgical efficiency and safety.

CN223715757UActive Publication Date: 2025-12-26WUHU HUAYUN CHUANGZHAN MEDICAL EQUIP CO LTD
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Patent Information

Application Number
CN202520336022.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-12-26
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Existing methods for replacing blades on laparoscopic staplers suffer from problems such as unstable connections, loosening, and being cumbersome and time-consuming, which affect the safety and efficiency of the surgery.

Method used

A quick-change structure including a handle, operating element, mounting rod, replacement component, and operating rod is designed to achieve quick and stable installation and removal of the blade through sliding, snap-fit, and elastic structures.

Benefits of technology

It improves the convenience and efficiency of surgical procedures, reduces surgical risks, extends the lifespan of the stapler, and facilitates cleaning and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a quick blade replacement structure of an endoscope anastomat, which belongs to the technical field of endoscope anastomats and comprises a handle, an operating piece arranged in the center of the handle, a mounting rod mounted at the end of the handle in a threaded manner, a replacement component mounted on the surface of the mounting rod in a sliding manner and an operating rod fixedly mounted in an inner cavity of the mounting rod. The tool bit is matched with the operating rod for use; the replacement assembly comprises a mounting part fixedly mounted on the operating rod and a dismounting part which is used in cooperation with the mounting part and has a dismounting effect. According to the utility model, through the design of the replacement assembly, the blade is rapidly, simply and conveniently replaced, the convenience and the efficiency of surgical operation are obviously improved, the time loss in the surgical process is reduced, and the surgical risk caused by improper replacement of the blade is reduced, so that the surgical safety and the success rate are improved; due to the structural design, postoperative cleaning and maintenance are facilitated, the service life of the anastomat is prolonged, and a more reliable and efficient surgical tool is provided for medical staff.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of endoscope anastomat, specifically relates to a quick replacement blade structure of endoscope anastomat. BACKGROUND

[0002] A kind of quick replacement blade structure of endoscope anastomat is a medical instrument component specially designed for endoscopic surgery, its main function is to allow surgeon to quickly, conveniently replace the blade of anastomat during endoscopic surgery, the advantage of this structure is to reduce the operation time, improve the operation efficiency, also reduce the operation risk caused by improper blade replacement.

[0003] In prior art, replacing tool bit during operation usually adopts threaded connection or simple clamping method, these methods have certain limitations.Threaded connection can be unstable due to vibration during operation, affecting cutting accuracy and operation safety;Simple clamping structure can be loose after frequent use, reducing the stability of tool bit, at the same time, these traditional replacement methods are relatively cumbersome and time-consuming in the tense atmosphere of operation, increasing the operation time;Therefore, a kind of quick replacement blade structure of endoscope anastomat is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of quick replacement blade structure of endoscope anastomat, to solve the problems proposed in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of quick replacement blade structure of endoscope anastomat, including handle, the operating element being arranged in the center of the handle, the installation rod being screwed in the end of the handle, the replacement assembly being slidably installed on the surface of the installation rod, the operating rod being fixedly installed in the inner cavity of the installation rod, and the tool bit being used in cooperation with the operating rod.

[0007] As a preferred scheme of the utility model, the replacement assembly includes installation component fixedly installed with the operating rod, and dismounting component used in cooperation with the installation component and having dismounting effect.

[0008] As a preferred scheme of the utility model, the installation component includes fixed block, installation slot being opened in the side surface of the fixed block, support rod being fixedly installed in the center of the installation slot, push plate being sleeved on the side wall of the support rod, and spring being fixedly connected on one side of the push plate.

[0009] As a preferred scheme of the utility model, the dismounting part comprises a clamping block fixedly connected with the other side of the push plate, elastic blocks fixedly installed on both sides of the clamping block, a fixed column fixedly connected with the surface of the clamping block, a rotating plate sleeved on the side surface of the fixed column, and a bearing seat fixedly installed at the end of the rotating plate.

[0010] As a preferred scheme of the utility model, the dismounting part further comprises a pull rod fixedly connected with the surface of the bearing seat, a rotating shaft inserted in the center of the bearing seat, and a pull block fixedly installed at the end of the pull rod, wherein the pull block is slidingly installed on the surface of the installation rod.

[0011] As a preferred scheme of the utility model, the operating rod comprises a metal rod, a clamping groove opened at the end of the metal rod, and a clamping groove communicated with the clamping groove, wherein the clamping groove is clamped with the clamping block, and the clamping groove is clamped with the elastic block.

[0012] As a preferred scheme of the utility model, the cutter head comprises an adjusting block cooperatively used with the end of the operating piece, an operating cutter rotatingly installed on the side surface of the adjusting block, and a tooth having a slide resistance and cooperatively used with the operating cutter.

[0013] Compared with the prior art, the utility model has the beneficial effects that: through the design of the replacement assembly, the quick and convenient replacement of the blade is realized, the convenience and efficiency of the operation are significantly improved, the time loss in the operation process is reduced, the operation risk caused by improper replacement of the blade is reduced, the operation safety and success rate are improved, in addition, the design of the structure is also convenient for postoperative cleaning and maintenance, the service life of the anastomat is prolonged, and a more reliable and efficient operation tool is provided for medical staff. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is the local structure schematic view of the utility model;

[0017] Figure 3 It is the cutter head structure schematic view of the utility model;

[0018] Figure 4 It is the replacement assembly structure schematic view of the utility model.

[0019] In the figure: 101, handle; 102, operating piece; 103, mounting rod; 104, replacement assembly; 105, operating rod; 106, tool bit; 104a, mounting component; 104b, dismounting component; 104a-1, fixed block; 104a-2, mounting groove; 104a-3, support rod; 104a-4, push plate; 104a-5, spring; 104b-1, clamping block; 104b-2, elastic block; 104b-3, fixed column; 104b-4, rotating plate; 104b-5, bearing seat; 104b-6, pull rod; 104b-7, rotating shaft; 104b-8, pull block; 105a, metal rod; 105b, clamping groove; 105c, clamping groove; 106a, adjusting block; 106b, operating knife; 106c, tooth. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, obvious and easy to understand, the specific embodiments of the utility model are described in detail below with reference to the drawings of the specification.

[0021] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0022] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the utility model. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent or alternative to other embodiments.

[0023] EMBODIMENT

[0024] REFERENCE Figures 1-4 For the embodiment of the utility model, the embodiment provides a quick replacement blade structure of a laparoscope anastomat, comprising,

[0025] The handle 101, the operating piece 102 arranged at the center of the handle 101, the mounting rod 103 screw-mounted at the end of the handle 101, the replacement assembly 104 slidingly mounted on the surface of the mounting rod 103, the operating rod 105 fixedly mounted in the inner cavity of the mounting rod 103, and the tool bit 106 used in cooperation with the operating rod 105.

[0026] The replacement assembly 104 comprises the mounting component 104a fixedly mounted with the operating rod 105, and the dismounting component 104b used in cooperation with the mounting component 104a and having a dismounting effect.

[0027] The mounting component 104a comprises a fixing block 104a-1, a mounting slot 104a-2 formed in the side surface of the fixing block 104a-1, a supporting rod 104a-3 fixedly mounted in the center of the mounting slot 104a-2, a push plate 104a-4 sleeved on the side wall of the supporting rod 104a-3, and a spring 104a-5 fixedly connected to one side of the push plate 104a-4.

[0028] Specifically, first, the doctor controls the mounting rod 103 through the operating member 102 in the center of the handle 101, so that the replacement assembly 104 slidingly mounted on the surface of the mounting rod 103 is moved to a suitable position; then, the old cutter head 106 is detached from the operating rod 105 through the dismounting component 104b; then, the new cutter head 106 is mounted on the operating rod 105 through the mounting component 104a, and the stable mounting of the cutter head 106 is ensured by the fixing block 104a-1, the supporting rod 104a-3, the push plate 104a-4 and other components; finally, under the action of the spring 104a-5, the push plate 104a-4 pushes the cutter head 106 to the right position, and the quick replacement of the blade is completed.

[0029] The dismounting component 104b comprises a clamping block 104b-1 fixedly connected to the other side of the push plate 104a-4, elastic blocks 104b-2 fixedly mounted on both sides of the clamping block 104b-1, a fixing column 104b-3 fixedly connected to the surface of the clamping block 104b-1, a rotating plate 104b-4 sleeved on the side surface of the fixing column 104b-3, a bearing seat 104b-5 fixedly mounted on the end of the rotating plate 104b-4, a pull rod 104b-6 fixedly connected to the surface of the bearing seat 104b-5, a rotating shaft 104b-7 inserted in the center of the bearing seat 104b-5, and a pull block 104b-8 fixedly mounted on the end of the pull rod 104b-6, wherein the pull block 104b-8 is slidingly mounted on the surface of the mounting rod 103,

[0030] The operating rod 105 comprises a metal rod 105a, a clamping slot 105b formed in the end of the metal rod 105a, and a clamping groove 105c in communication with the clamping slot 105b, wherein the clamping slot 105b is clamped with the clamping block 104b-1, and the clamping groove 105c is clamped with the elastic block 104b-2.

[0031] The cutter head 106 comprises an adjusting block 106a cooperated with the end of the operating member 102, an operating cutter 106b rotatingly mounted on the side surface of the adjusting block 106a, and a tooth 106c cooperated with the operating cutter 106b and having a slide resistance.

[0032] It should be noted that the doctor first operates the handle 101 to make the replacement assembly 104 slide along the surface of the mounting rod 103 to the appropriate position, then pulls the pull rod 104b-6 to make the pull block 104b-8 slide on the surface of the mounting rod 103, thereby driving the rotating shaft 104b-7 and the rotating plate 104b-4 to rotate, the clamping block 104b-1 is separated from the clamping groove 105b and the clamping groove 105c of the operating rod 105 under the action of the elastic block 104b-2, and the old cutter head 106 is disassembled; then, the adjusting block 106a of the new cutter head 106 is matched with the end of the operating piece 102, the operating cutter 106b is fixed on the adjusting block 106a by the anti-slip effect of the tooth 106c, and the mounting component 104a of the new cutter head 106 is clamped with the clamping groove 105b and the clamping groove 105c of the operating rod 105, and the installation of the new cutter head 106 is completed.

[0033] In use, the doctor operates the handle 101 to make the replacement assembly 104 slide along the surface of the mounting rod 103 to the appropriate position, then pulls the pull rod 104b-6 to make the pull block 104b-8 slide on the surface of the mounting rod 103, thereby driving the rotating shaft 104b-7 and the rotating plate 104b-4 to rotate, the clamping block 104b-1 is separated from the clamping groove 105b and the clamping groove 105c of the operating rod 105 under the action of the elastic block 104b-2, and the old cutter head 106 is disassembled; then, the adjusting block 106a of the new cutter head 106 is matched with the end of the operating piece 102, the operating cutter 106b is fixed on the adjusting block 106a by the anti-slip effect of the tooth 106c, and the mounting component 104a of the new cutter head 106 is clamped with the clamping groove 105b and the clamping groove 105c of the operating rod 105, and the installation of the new cutter head 106 is completed.

[0034] In summary, through the setting of the replacement assembly 104 and the disassembly component 104b, the quick and stable replacement of the cutter head 106 is realized, which significantly improves the convenience and efficiency of the operation, and reduces the time loss in the operation process; at the same time, the stability of the structure ensures the safety of the operation, avoids the risk of the operation caused by improper replacement of the cutter head 106; in addition, the structure is convenient for postoperative cleaning and maintenance, prolongs the service life of the anastomat, and provides more reliable and efficient surgical tools for medical staff.

[0035] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the novel teachings and advantages of the subject matter described herein (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, locations, and the like). For example, the elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be modified or changed. Thus, all such modifications are intended to be included within the scope of the present inventive subject matter. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the subject matter described herein. Any "open / closed" claims are intended to encompass the structure described herein, and not just the structure equivalent, but also the equivalent structure. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to particular embodiments described, but extends to various modifications that nevertheless fall within the scope of the appended claims.

[0036] Furthermore, in order to provide a concise description of the exemplary embodiments, not all features of an actual implementation can be described (i.e., those pertaining to the

[0037] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0038] It should be noted that the above-mentioned embodiments are only used to illustrate the technical solutions of the present application but not to limit the present application, and although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalent replaced without departing from the spirit and scope of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. A quick replacement blade structure of a laparoscopic stapler, characterized in that: The utility model relates to a replaceable cutting head, including, Handle (101), operating part (102) that sets in the handle (101) center, mounting rod (103) that is screwed in the end of handle (101), replaceable assembly (104) that is slidingly installed on the surface of mounting rod (103), operating rod (105) that is fixedly installed in the inner chamber of mounting rod (103) and the cutter head (106) that cooperates with operating rod (105) is used.

2. The quick replacement blade structure of a laparoscopic stapler according to claim 1, characterized in that: Replaceable assembly (104) includes mounting component (104a) fixedly installed with operating rod (105), and dismounting component (104b) that cooperates with mounting component (104a) is used and has the dismounting effect.

3. The quick replacement blade structure of a laparoscopic stapler according to claim 2, characterized in that: The mounting component (104a) includes fixed block (104a-1), installation groove (104a-2) that is opened in the side surface of fixed block (104a-1), support rod (104a-3) that is fixedly installed in the center of installation groove (104a-2), push plate (104a-4) that is sleeved in the side wall of support rod (104a-3) and spring (104a-5) that is fixedly connected in one side of push plate (104a-4).

4. The quick replacement blade structure of a laparoscopic stapler according to claim 3, characterized in that: The dismounting component (104b) includes the clamping block (104b-1) that is fixedly connected with the other side of push plate (104a-4), the elastic block (104b-2) that is fixedly installed in both sides of clamping block (104b-1), the fixed column (104b-3) that is fixedly connected in the surface of clamping block (104b-1), the rotating plate (104b-4) that is sleeved in the side surface of fixed column (104b-3) and the bearing seat (104b-5) that is fixedly installed in the end of rotating plate (104b-4).

5. The quick replacement blade structure of a laparoscopic stapler according to claim 4, characterized in that: The dismounting component (104b) further includes the pull rod (104b-6) that is fixedly connected in the surface of bearing seat (104b-5), the rotating shaft (104b-7) that is inserted in the center of bearing seat (104b-5) and the pull block (104b-8) that is fixedly installed in the end of pull rod (104b-6), the pull block (104b-8) is slidingly installed on the surface of mounting rod (103).

6. The quick replacement blade structure of a laparoscopic stapler according to claim 5, characterized in that: The operating rod (105) includes metal rod (105a), clamping groove (105b) that is opened in the end of metal rod (105a) and clamping groove (105c) that is communicated with clamping groove (105b), the clamping groove (105b) is connected with clamping block (104b-1), and the clamping groove (105c) is connected with elastic block (104b-2).

7. The quick blade replacement structure of a laparoscopic stapler according to claim 6, characterized in that: The cutter head (106) includes adjusting block (106a) that is used with the end of operating part (102), operating cutter (106b) that is rotatably installed on the side surface of adjusting block (106a) and gear teeth (106c) that are used with operating cutter (106b) and have the effect of blocking slide.