Disposable linear cutting stapler anti-separation positioning device

Abstract

The utility model provides a disposable linear cutting anastomat prevents separation positioning device, belong to medical instrument technical field, including bearing mechanism, be used for supporting and fixed whole positioning device's structure, fixed part, be located on bearing mechanism, be used for realizing the preliminary positioning and installation of nail bin subassembly, fixed part includes base and fixed block, base is connected in bearing mechanism, is used for providing installation platform, fixed block locates on base, positioning mechanism includes locking assembly and clamping assembly, the utility model discloses through setting up the cooperation of fixed part and positioning mechanism, realizes the quick positioning and prevents separation connection of nail bin subassembly, and nature clamping structure and wedge -shaped wedge improve the accuracy and convenience of interfacing, and the clamping plate cooperation flexible gasket of screw drive ensures that the compression is reliable and does not damage the subassembly, and the anti -skid design of wedge and card slot effectively prevents the use in loose, effectively solved the technical problem of traditional mode assembly difficult, unstable connection.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a disposable linear cutting stapler anti-separation positioning device. Background Technology

[0002] Existing linear staplers are widely used in clinical surgery, but their staple cartridge components are typically disposable and require frequent replacement. Currently, the connection between the staple cartridge and the main unit mostly relies on manual installation, which presents problems such as difficulty in docking, inaccurate positioning, and insecure locking. This can easily lead to loosening or even accidental separation during use, affecting the surgical process and potentially posing safety risks. Furthermore, some auxiliary positioning structures lack effective anti-detachment designs, resulting in insufficient stability after assembly and cumbersome operation, failing to meet the demands for efficient and safe clinical procedures.

[0003] In existing technologies, traditional disposable linear stapler cartridge assemblies mostly rely on manual installation, which has problems such as inaccurate docking, weak connection, and easy loosening. Especially during surgery, due to limited operating space, it is difficult to achieve fast and reliable assembly, which affects surgical efficiency and safety. Some auxiliary positioning devices have complex structures and cumbersome operations, lack effective anti-separation design, and are prone to jamming or positioning failure after long-term use. Utility Model Content

[0004] The purpose of this invention is to provide a disposable linear cutting stapler anti-separation positioning device, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A disposable linear stapler anti-separation positioning device, comprising: The supporting mechanism is the structure used to support and secure the entire positioning device; A fastener, mounted on the supporting mechanism, is used to achieve the initial positioning and installation of the staple cartridge assembly; The fastener includes a base and a fixing block. The base is connected to the bearing mechanism and is used to provide an installation platform. The fixing block is disposed on the base and is used to clamp and fix the staple cartridge assembly. The positioning mechanism includes a locking assembly and a snap-fit ​​assembly; The locking assembly includes a threaded rod, a throttle, and a clamping plate. The threaded rod is rotatably mounted on the bearing mechanism. The throttle is connected to one end of the threaded rod and is used to drive the threaded rod to rotate. The clamping plate is connected to the threaded rod through a threaded engagement and moves along its axial direction when the threaded rod rotates, thereby pressing and locking the staple cartridge assembly. The snap-fit ​​assembly includes a snap-fit ​​block and a snap-fit ​​slot. The snap-fit ​​block is located on the fixing block, and the snap-fit ​​slot is located at the docking end of the staple cartridge assembly. The snap-fit ​​block is inserted into the snap-fit ​​slot to achieve quick alignment and stable connection.

[0006] As a preferred embodiment of this utility model, the fixing block is provided with an elastic clamping structure, which can automatically clamp when the staple cartridge assembly is inserted to prevent it from loosening or shifting during the docking process.

[0007] As a preferred embodiment of this utility model, the throttle is provided with anti-slip texture or rubber sleeve, which facilitates the operator's rotation operation and improves the comfort and stability of operation.

[0008] As a preferred embodiment of this utility model, the bottom of the clamping plate is provided with a flexible pad, which can protect the surface of the nail cartridge assembly from damage during the pressing process and increase friction to ensure the locking effect.

[0009] As a preferred embodiment of this utility model, the front end of the card block is designed in a wedge shape, which facilitates automatic guidance into the card slot during the docking process, thereby improving the accuracy and convenience of docking.

[0010] As a preferred embodiment of this utility model, the inner wall of the slot is provided with anti-slip texture or elastic material layer, which can enhance the friction with the card block and prevent relative sliding or falling off during use.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting the cooperation between the fixing parts and the positioning mechanism, the fast positioning and anti-separation connection of the nail cartridge assembly can be realized. The clamping structure and wedge-shaped card block improve the accuracy and convenience of docking. The threaded drive clamping plate and the flexible gasket ensure reliable clamping without damaging the assembly. The anti-slip design of the card block and the card slot effectively prevents loosening during use, effectively solving the technical problems of difficult assembly and unstable connection in the traditional method. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective; Figure 3 This is a side view of the present invention; Figure 4This is a bottom view of the present invention.

[0013] In the diagram: 100, bearing mechanism; 101, fastener; 1011, base; 1012, fixing block; 200, positioning mechanism; 201, locking assembly; 2011, threaded rod; 2012, throttle; 2013, clamping plate; 202, snap-fit ​​assembly; 2021, snap-fit ​​block; 2022, slot. Detailed Implementation

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0016] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0017] Example Reference Figures 1-4 This embodiment of the present invention provides a disposable linear stapler anti-separation positioning device, comprising: The supporting mechanism 100 is used to support and fix the structure of the entire positioning device; The fastener 101 is mounted on the support mechanism 100 and is used to achieve the initial positioning and installation of the staple cartridge assembly; The fastener 101 includes a base 1011 and a fixing block 1012. The base 1011 is connected to the support mechanism 100 and is used to provide an installation platform. The fixing block 1012 is disposed on the base 1011 and is used to clamp and fix the staple cartridge assembly. The positioning mechanism 200 includes a locking component 201 and a snap-fit ​​component 202; The locking assembly 201 includes a threaded rod 2011, a handle 2012, and a clamping plate 2013. The threaded rod 2011 is rotatably mounted on the bearing mechanism 100. The handle 2012 is connected to one end of the threaded rod 2011 and is used to drive the threaded rod 2011 to rotate. The clamping plate 2013 is connected to the threaded rod 2011 through a threaded engagement and moves along its axial direction when the threaded rod 2011 rotates, thereby pressing and locking the staple cartridge assembly. The snap-fit ​​assembly 202 includes a snap-fit ​​block 2021 and a snap-fit ​​slot 2022. The snap-fit ​​block 2021 is located on the fixing block 1012, and the snap-fit ​​slot 2022 is located at the docking end of the staple cartridge assembly. The snap-fit ​​block 2021 is inserted into the snap-fit ​​slot 2022 to achieve quick alignment and stable connection.

[0018] Specifically, the fixing block 1012 is equipped with an elastic clamping structure that can automatically clamp when the staple cartridge assembly is inserted, preventing it from loosening or shifting during the docking process.

[0019] It should be noted that the elastic clamping structure of the fixing block 1012 can be made of spring sheets or elastic metal parts, which can automatically generate clamping force when the staple cartridge assembly is inserted into the installation position on the base 1011 to achieve initial fixation and effectively prevent loosening or displacement caused by vibration or operating force during subsequent docking, thereby improving the stability and safety of docking.

[0020] Specifically, the 2012 throttle is equipped with anti-slip textures or rubber sleeves to facilitate rotation by the operator and improve operating comfort and stability.

[0021] It should be noted that the anti-slip texture or rubber sleeve on the surface of the throttle 2012 can significantly increase the friction between the hand and the throttle, making it easier and more stable for the operator to rotate the threaded rod 2011. This is especially suitable for surgical environments where gloved operation is required, improving the comfort of human-machine interaction and the reliability of operation.

[0022] Specifically, the bottom of the clamp 2013 is equipped with a flexible pad, which can protect the surface of the nail cartridge assembly from damage during the clamping process and increase friction to ensure the locking effect.

[0023] It should be noted that the flexible pad at the bottom of the clamp 2013 is made of elastic materials such as silicone or polyurethane. During the pressing process, it can fit against the surface of the nail cartridge assembly to avoid scratches or deformation caused by rigid contact. At the same time, the elastic deformation enhances the friction of the contact surface, ensuring a firm lock and preventing loosening.

[0024] Specifically, the front end of the card block 2021 has a wedge-shaped design, which facilitates automatic guidance into the card slot 2022 during the docking process, improving the accuracy and convenience of docking.

[0025] It should be noted that the front end of the 2021 card block adopts a wedge-shaped design, which has a good guiding effect. It can automatically guide the centering of the staple cartridge component and the stapler in the initial docking stage, reducing the difficulty of manual alignment and improving docking efficiency and accuracy. It is especially suitable for clinical operation scenarios with limited space or poor field of vision.

[0026] Specifically, the inner wall of the card slot 2022 is provided with anti-slip texture or elastic material layer, which can enhance the friction with the card block 2021 and prevent relative sliding or falling off during use.

[0027] It should be noted that the anti-slip texture or elastic material layer on the inner wall of the card slot 2022 can form a tight fit after the card block 2021 is inserted, effectively preventing relative sliding or accidental detachment caused by vibration or external force during use, and further enhancing the stability and safety of the connection.

[0028] In use, first place the anti-separation positioning device of the disposable linear stapler on the operating table and ensure it is stable. The operator inserts the staple cartridge assembly into the base 1011 of the fixing member 101. The elastic clamping structure inside the fixing block 1012 automatically generates clamping force when the staple cartridge assembly enters, achieving initial positioning and anti-loosening fixation, effectively preventing it from shaking or falling off in subsequent operations. Then, align the stapler body with the positioning mechanism 200 for docking. At this time, the front end of the locking block 2021 has a wedge-shaped structure, which can automatically guide it into the locking groove 2 on the staple cartridge assembly. Within 022, rapid and precise alignment is achieved, improving docking efficiency. After docking, manually rotate the handle 2012 to drive the threaded rod 2011 to rotate, which in turn drives the clamping plate 2013 to move smoothly downward along the axial direction, applying uniform clamping force to the staple cartridge assembly. The bottom of the clamping plate 2013 is equipped with a flexible pad, which can buffer the pressure during the clamping process to avoid damaging the staple cartridge surface, while also increasing friction and preventing slippage. The anti-slip texture or elastic material layer on the inner wall of the slot 2022 further enhances the connection stability between it and the clamping block 2021, preventing relative sliding or accidental detachment during use.

[0029] In summary, by setting up the cooperation between the fixing component 101 and the positioning mechanism 200, the fast positioning and anti-separation connection of the staple cartridge assembly are achieved. The clamping structure and wedge-shaped block 2021 improve the accuracy and convenience of docking. The threaded drive clamping plate 2013, together with the flexible gasket, ensures reliable clamping without damaging the assembly. The anti-slip design of the block 2021 and the slot 2022 effectively prevents loosening during use, effectively solving the technical problems of difficult assembly and unstable connection in traditional methods.

[0030] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0031] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0032] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A disposable linear stapler anti-separation positioning device, characterized in that: include, A support mechanism (100) is used to support and fix the structure of the entire positioning device; A fastener (101) is provided on the bearing mechanism (100) for the initial positioning and installation of the staple cartridge assembly; The fastener (101) includes a base (1011) and a fixing block (1012). The base (1011) is connected to the bearing mechanism (100) and is used to provide an installation platform. The fixing block (1012) is disposed on the base (1011) and is used to clamp and fix the staple cartridge assembly. The positioning mechanism (200) includes a locking assembly (201) and a snap-fit ​​assembly (202). The locking assembly (201) includes a threaded rod (2011), a handle (2012), and a clamping plate (2013). The threaded rod (2011) is rotatably mounted on the bearing mechanism (100). The handle (2012) is connected to one end of the threaded rod (2011) and is used to drive the threaded rod (2011) to rotate. The clamping plate (2013) is connected to the threaded rod (2011) through a threaded engagement and moves along its axial direction when the threaded rod (2011) rotates, thereby pressing and locking the staple cartridge assembly. The snap-fit ​​assembly (202) includes a snap-fit ​​block (2021) and a snap-fit ​​slot (2022). The snap-fit ​​block (2021) is disposed on the fixing block (1012), and the snap-fit ​​slot (2022) is disposed at the docking end of the staple cartridge assembly. The snap-fit ​​block (2021) is inserted into the snap-fit ​​slot (2022) to achieve quick alignment and stable connection.

2. The anti-separation positioning device for a disposable linear cutting stapler according to claim 1, characterized in that: The fixing block (1012) is equipped with an elastic clamping structure, which can automatically clamp when the staple cartridge assembly is inserted to prevent it from loosening or shifting during the docking process.

3. The anti-separation positioning device for a disposable linear cutting stapler according to claim 2, characterized in that: The throttle (2012) is equipped with anti-slip texture or rubber sleeve, which makes it easy for operators to rotate and improves operating comfort and stability.

4. The anti-separation positioning device for a disposable linear cutting stapler according to claim 3, characterized in that: The clamping plate (2013) has a flexible pad at the bottom, which can protect the surface of the nail cartridge assembly from damage during the clamping process and increase friction to ensure the locking effect.

5. The anti-separation positioning device for a disposable linear cutting stapler according to claim 4, characterized in that: The front end of the card block (2021) is wedge-shaped, which facilitates automatic guidance into the card slot (2022) during the docking process, thereby improving the accuracy and convenience of docking.

6. The anti-separation positioning device for a disposable linear cutting stapler according to claim 5, characterized in that: The inner wall of the slot (2022) is provided with anti-slip texture or elastic material layer, which can enhance the friction with the card block (2021) and prevent relative sliding or falling off during use.

Images