Storage device connection assembly and surgical stapler

Abstract

This application provides a storage device connection assembly and a surgical stapler. The surgical stapler includes an actuator and a stapler body that are detachably connected. The storage device connection assembly includes: a storage device disposed on the actuator; a first electrical connector disposed on the actuator and electrically connected to the storage device; and a second electrical connector disposed on the stapler body. When the actuator is connected to the stapler body along the axial direction of the stapler, the second electrical connector and the first electrical connector are aligned and abut against each other in the axial direction to achieve electrical connection. The first and second electrical connectors of this application abut against each other in the axial direction of the stapler to achieve electrical connection. The electrical connection points of the first and second electrical connectors will not interfere with the mechanical structure, causing deformation of either the first or second electrical connector, resulting in incomplete assembly, improving assembly reliability, and ensuring surgical effectiveness.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically to a storage device connection component and a surgical stapler. Background Technology

[0002] In the prior art, a motor-driven surgical stapler includes a stapler body and an actuator that cooperates with the stapler body. The stapler body contains a motor assembly that provides power. The actuator includes a staple cartridge and an anvil. During the surgery, tissue is placed between the anvil and the staple cartridge, and the distance between the anvil and the staple cartridge is adjusted to gradually clamp the tissue. Then, the motor is activated to provide power to the drive assembly, causing the drive assembly to move distally, pushing the staples in the staple cartridge outwards and shaping them on the anvil, thus completing the tissue anastomosis.

[0003] A storage device can be installed at the actuator to store information related to the use of the stapler, such as the number of uses, sterilization cycle, staple size, jaw size, and identification information of the actuator or staple cartridge. The storage device is connected via a first electrical connector to a second electrical connector located within the stapler body, and further connected to the electrical control device within the stapler body. Currently, the first and second electrical connectors are laterally connected. During assembly of the actuator with the stapler body, interference between the electrical connectors and the mechanical structure is likely to occur, making assembly inconvenient and potentially damaging the electrical connectors. Summary of the Invention

[0004] To address the problems in the prior art, the purpose of this application is to provide a storage device connection component and a surgical stapler to avoid interference between electrical connectors and mechanical structures during the assembly of the actuator.

[0005] This application provides a storage device connection assembly for a surgical stapler, the surgical stapler including an actuator and a stapler body detachably connected, the storage device connection assembly including:

[0006] A storage device is provided in the actuator;

[0007] A first electrical connector is disposed on the actuator and electrically connected to the storage device;

[0008] A second electrical connector is disposed on the stapler body. When the actuator is connected to the stapler body along the axial direction of the stapler, the second electrical connector is aligned with and abuts against the first electrical connector in the axial direction to achieve electrical connection.

[0009] In some embodiments, it also includes:

[0010] A support member is disposed at the proximal end of the actuator, the storage device and the first electrical connector are disposed on the support member, and the first electrical connector is at least partially exposed along the axial direction at the proximal end side of the support member.

[0011] In some embodiments, a mounting hole is provided at the distal end of the stapler body, the second electrical connector passes through the mounting hole, and is at least partially exposed along the axial direction at the distal end of the stapler body.

[0012] In some embodiments, the distal end of the second electrical connector is provided with an elastic connection portion, which can be driven to change its size in the axial direction.

[0013] In some embodiments, the mounting hole has a first stepped portion on its proximal side, and the second electrical connector has a second stepped portion on its proximal side that mates with the first stepped portion.

[0014] In some embodiments, the distal sidewall of the stapler body has a first cavity on the proximal side near the mounting hole, and the mounting hole communicates with the first cavity.

[0015] In some embodiments, a wire is also included, the distal end of which is electrically connected to the second electrical connector;

[0016] The distal sidewall of the stapler body is provided with a mounting groove extending along the axial direction, and the wire is at least partially embedded in the mounting groove. The mounting groove is connected to the first cavity through a wire through-hole.

[0017] In some embodiments, the distal end of the stapler body has a first opening on the distal side of the mounting hole, the distal end of the second electrical connector is at least partially exposed in the first opening, and the proximal end of the actuator enters at least partially into the interior of the distal end of the stapler body through the first opening.

[0018] In some embodiments, the actuator has a second opening at its proximal end, through which the support member at least partially enters the interior of the actuator;

[0019] One of the sidewalls of the actuator and the support member is provided with a guide groove, and the other is provided with a guide portion, the guide portion at least partially entering the guide groove.

[0020] This application also provides a surgical stapler, including the storage device connection assembly described above.

[0021] The storage device connection assembly and surgical stapler provided in this application have the following advantages:

[0022] By adopting this application, during the assembly of the stapler, the actuator is connected to the stapler body along the axial direction of the stapler. The first and second electrical connectors are aligned and abutted along the axial direction of the stapler to achieve electrical connection. In this way, when the actuator is connected to the stapler body along the axial direction of the stapler, even if there is a deviation between the actuator and the stapler body in that axial direction, the electrical connection points of the first and second electrical connectors will not interfere with the mechanical structure, causing deformation of the first or second electrical connector and resulting in incomplete assembly. Furthermore, even after multiple assembly operations, there will be no situation where incomplete assembly occurs due to the elastic failure of the first or second electrical connector. This not only makes the assembly operation more convenient but also improves the reliability of the stapler and ensures the surgical effect. Attached Figure Description

[0023] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0024] Figure 1 This is a partial structural schematic diagram of a surgical stapler according to an embodiment of this application;

[0025] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is a schematic diagram of the engagement of the nail box housing with the second electrical connector and the wire according to an embodiment of this application;

[0027] Figure 4 This is an exploded view of a storage device connection assembly according to an embodiment of this application;

[0028] Figure 5 This is a schematic diagram of the engagement of the nail box housing and the second electrical connector according to an embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the structure of a storage device assembly according to an embodiment of this application;

[0030] Figure 7 This is a schematic diagram of the structure of the second electrical connector according to an embodiment of this application;

[0031] Figure 8 This is a schematic diagram of the structure of the second mating part according to an embodiment of this application;

[0032] Figure 9 This is a schematic diagram of a storage device assembly and a second electrical connector and wires in accordance with an embodiment of this application;

[0033] Figure 10 This is a schematic diagram of the storage device assembly with the second electrical connector and wires after omitting the support member according to an embodiment of this application.

[0034] Figure label:

[0035] 10 Nail box housing 3 Storage device assembly

[0036] 1. Second mating part 31 Storage device

[0037] 11 First cavity 32 First electrical connector

[0038] 12 Mounting slots 33 Support components

[0039] 13. Wire through hole 331. Guide part

[0040] 14 Mounting Hole 332 Proximal End Face

[0041] 141 First step section 4 Second electrical connector

[0042] 15 First opening 41 Elastic connection part

[0043] 16 Mounting Wall 42 Mounting Section

[0044] 2. Stamp cartridge assembly 43. Second step section

[0045] 21 First mating part 5 Conductor

[0046] 211 Guide groove 51 Distal end of the conductor

[0047] 212 Second opening 52 Proximal end of the conductor Detailed Implementation

[0048] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted. The words “or” and “or” in the specification may mean “and” or “or”. Although the terms “upper,” “lower,” “between,” etc., may be used in this specification to describe different exemplary features and elements of this application, these terms are used herein only for convenience, such as the orientation according to the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of this application. Although “first” or “second,” etc., are used in this specification to denote certain features, they are merely indicative of function and not as a limitation on the number or importance of specific features.

[0049] This application provides a storage device connection assembly for a surgical stapler and a surgical stapler including the storage device connection assembly. The surgical stapler includes an actuator and a stapler body that are detachably connected. In use, the actuator can be mounted on the stapler body along the axial direction of the stapler. The storage device connection assembly includes a storage device, a first electrical connector, and a second electrical connector. The storage device and the first electrical connector are disposed on the actuator and are electrically connected. The second electrical connector is disposed on the stapler body. When the actuator is assembled to the stapler body along the axial direction of the stapler, the second electrical connector aligns with and abuts against the first electrical connector in the axial direction to achieve electrical connection. In this way, when the actuator is connected to the stapler body along the axial direction of the stapler, even if there is a deviation between the actuator and the stapler body in the axial direction, the electrical connection points of the first and second electrical connectors will not interfere with the mechanical structure, causing deformation of the first or second electrical connector and resulting in improper assembly. Furthermore, even after multiple assembly operations, there will be no situation where improper assembly occurs due to the elastic failure of the first or second electrical connector. This not only makes the assembly operation more convenient but also improves the reliability of the stapler and ensures the surgical effect.

[0050] The structure of the storage device connection component of various specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the various specific embodiments are not intended to limit the scope of protection of this application.

[0051] like Figures 1-2 As shown, the surgical stapler includes a detachably connected actuator and a stapler body. The actuator includes a staple cartridge assembly 2 and an anvil (not shown). The stapler body includes a staple cartridge housing 10. The actuator is detachably mounted to the distal end of the staple cartridge housing 10. The proximal end of the staple cartridge assembly 2 includes a first mating portion 21, and the distal end of the staple cartridge housing 10 includes a second mating portion 1. When the actuator is mounted to the distal end of the staple cartridge housing 10, the first mating portion 21 and the second mating portion 1 are detachably connected.

[0052] In this application, the distal side and proximal side are relative to the operator. The side closer to the operator is the proximal side, and the side farther from the operator, i.e., closer to the surgical position, is the distal side. The direction along the axis of the stapler is the axial direction, i.e., the direction from the distal side to the proximal side of the stapler, or the direction from the proximal side to the distal side of the stapler. For example, in Figure 1From the perspective of the stapler cartridge assembly 2, its distal side is the left side and its proximal side is the right side. The S1 direction is the direction from the distal side to the proximal side of the stapler. In this application, for a component, the inner and outer sides are relative to the axis of the stapler; the side closer to the axis is the inner side, and the side farther from the axis is the outer side.

[0053] like Figures 3-6 As shown, the storage device connection assembly includes a storage device assembly 3 disposed on the first mating portion 21 of the staple cartridge assembly 2. The storage device assembly 3 includes a storage device 31, two first electrical connectors 32, and a support member 33. The storage device 31 is, for example, an EEPROM (Electrically Erasable Programmable Read-Only Memory) or other type of memory. The storage device 31 is used to store information related to the use of the stapler, such as the number of uses, sterilization cycle, staple size, jaw size, identification information of the actuator or staple cartridge, etc. The storage device 31 and the first electrical connectors 32 are disposed on the support member 33, and the first electrical connectors 32 are at least partially exposed along the axial direction on the proximal side of the support member 33. The first electrical connectors 32 are finger-shaped electrical connectors, but this application is not limited to this. The first mating portion 21 has a second opening 212 facing the proximal side. The support member 33 is at least partially inserted into the second opening 212, and the first electrical connector 32 is at least partially exposed at the proximal end of the first mating portion 21. The portion of the first electrical connector 32 exposed at the proximal end of the first mating portion 21 is the electrical connection point of the first electrical connector 32. A guide portion 331 is provided on one side of the support member 33, and a guide groove 211 extending axially along the anastomosis device is provided on the side wall of the first mating portion 21. When the support member 33, carrying the first electrical connector 32 and the storage device 31, is installed on the first mating portion 21, the guide portion 331 is at least partially inserted into the guide groove 211 to guide the installation of the support member 33.

[0054] In another alternative embodiment, the side wall of the support member 33 may be provided with a guide groove 211, and the inner wall of the first mating part 21 may be provided with a guide part 331.

[0055] like Figures 3-5As shown, the storage device connection assembly further includes two second electrical connectors 4 and two wires 5 (one wire 5 is shown exemplarily in the figure). The second electrical connectors 4 and the wires 5 are both located in the second mating portion 1 of the staple cartridge housing 10. Each second electrical connector 4 is electrically connected to the distal end 51 of a corresponding wire 5, and the proximal end of the wire 5 is connected to a control device within the stapler body. When the actuator is assembled to the stapler body along the axial direction of the stapler, the second electrical connector 4 aligns with and abuts against the first electrical connector 32 in the axial direction to achieve electrical connection. The first electrical connector 32 and the second electrical connector 4 are in a one-to-one correspondence. The storage device 31 is connected to the control device in the stapler body sequentially through the first electrical connector 32, the second electrical connector 4, and the wire 5. The control device can control the storage device 31 and read stored data from the storage device 31. During the assembly of the actuator to the stapler body along the axial direction of the stapler, even if the actuator and the stapler body deviate from each other along the axial direction, the electrical connection points of the first electrical connector 32 and the second electrical connector 4 will not interfere with the mechanical structure, making the assembly operation more convenient and improving the reliability of the stapler.

[0056] like Figure 4 and Figure 5 As shown, the distal end of the second mating part 1 has a first opening 15, and the inner diameter of the second mating part 1 is greater than or equal to the outer diameter of the first mating part 21. The first mating part 21 can at least partially enter the interior of the second mating part 1 through the first opening 15. The distal end of the second mating part 1 has a mounting wall 16, and the mounting wall 16 has two mounting holes 14. The second electrical connector 4 passes through the mounting holes 14 and is at least partially exposed along the axial direction at the distal end of the second mating part 1. When the first mating part 21 is at least partially inserted into the interior of the second mating part 1, the proximal end face of the first mating part 21 is at least partially opposite to the mounting hole 14, and the proximal end of the first electrical connector 32 abuts against and is electrically connected to the distal end of the second electrical connector 4. Figure 7As shown, the second electrical connector 4 includes a mounting portion 42 disposed inside the mounting hole 14. The distal end of the mounting portion 42 has an elastic connecting portion 41, which can be driven to change its axial dimension. When the actuator is not assembled to the stapler body, the elastic connecting portion 41 protrudes from the distal end of the mounting portion 42 without pressure and has a first axial length. After the actuator is assembled to the stapler body, the proximal end of the first electrical connector 32 presses against the elastic connecting portion 41, causing the elastic connecting portion 41 to retract towards the mounting portion 42 and have a second axial length. The second axial length is less than the first axial length, ensuring the stability of the abutment and electrical connection between the first electrical connector 32 and the second electrical connector 4. The elastic connecting portion 41 can be itself a flexible metal connector, or it can have an elastic element at its proximal end, allowing the elastic connecting portion 41 to compress the elastic element and reduce its axial length. In another alternative embodiment, a rigid connection portion may also be provided at the distal end of the mounting portion 42, thereby improving the reliability of the first electrical connector 32 and the second electrical connector 4 in terms of abutment and electrical connection after assembly by controlling the positional accuracy of the first electrical connector 32 and the second electrical connector 4.

[0057] like Figures 8-10 As shown, the distal sidewall of the second mating part 1 has a first cavity 11 formed on the proximal side near the mounting hole 14, and the mounting hole 14 communicates with the first cavity 11. The sidewall of the second mating part 1 also has a mounting groove 12 extending along the axial direction, and the wire 5 is at least partially embedded in the mounting groove 12. The mounting groove 12 is connected to the first cavity 11 through a wire through hole 13. Figure 9 The diagram illustrates, for example, the structure in which a conductor 5 engages with a second electrical connector 4. Figure 10 The diagram exemplarily illustrates the structure of two wires 5 engaging with a second electrical connector 4. When installing the second electrical connector 4 into the mounting hole 14 of the second mating part 1, the process can be performed at the first cavity 11, inserting the second electrical connector 4 from the proximal end of the mounting hole 14 until at least part of the elastic connecting part 41 is exposed at the distal end of the mounting hole 14. The portion of the elastic connecting part 41 exposed at the distal end of the mounting hole 14 is the electrical connection point of the second electrical connector 4. A first stepped portion 141 is also provided on the proximal side of the mounting hole 14, and a second stepped portion 43, which mates with the first stepped portion 141, is provided on the proximal end of the mounting part 42 of the second electrical connector 4. When the second electrical connector 4 is inserted into the mounting hole 14, the second stepped portion 43 mates with the first stepped portion 141, limiting the axial installation position of the second electrical connector 4.

[0058] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A storage device connection assembly for a surgical stapler, the surgical stapler including a detachably connected effector and a stapler body, characterized by, The actuator includes a staple cartridge assembly (2), the proximal end of which includes a first mating portion (21), and the distal end of the stapler body includes a second mating portion (1); the storage device connection assembly includes: Storage device (31) is provided on the actuator; A first electrical connector (32) is disposed on the first mating part (21) and is electrically connected to the storage device (31), and the electrical connection point of the first electrical connector (32) is exposed at the proximal end of the first mating part (21); A support member (33) is provided at the proximal end of the actuator. One of the sidewalls of the proximal end of the actuator and the sidewall of the support member (33) is provided with a guide groove (211), and the other is provided with a guide portion (331). The guide portion (331) is at least partially inserted into the guide groove (211). The storage device (31) is provided on the outer sidewall of the support member (33). The first electrical connector (32) is a finger-shaped electrical connector. The first electrical connector (32) is provided on the support member (33), and at least part of the first electrical connector (32) is exposed axially at the proximal end of the support member (33) as an electrical connection point of the first electrical connector (32). The second electrical connector (4) is provided on the second mating part (1). The electrical connection point of the second electrical connector (4) is exposed at the far end of the second mating part (1). When the actuator is connected to the anastomosis body along the axial direction, the second electrical connector (4) and the first electrical connector (32) are aligned and abut against each other in the axial direction to achieve electrical connection. The stapler body has a mounting hole (14) at its distal end. The second electrical connector (4) passes through the mounting hole (14). The distal end of the second electrical connector (4) has an elastic connection part (41). The portion of the elastic connection part (41) exposed at the distal end of the mounting hole (14) is the electrical connection point of the second electrical connector (4). The elastic connection part (41) can be driven to change its axial dimension. When the actuator is not assembled to the stapler body, the elastic connection part (41) is not under pressure and has a first axial length. After the actuator is assembled to the stapler body, the proximal end of the first electrical connector (32) presses the elastic connection part (41), causing the elastic connection part (41) to retract and have a second axial length, which is less than the first axial length.

2. The storage device connection assembly of claim 1, wherein, The mounting hole (14) has a first step on its proximal side, and the second electrical connector (4) has a second step (43) on its proximal side that mates with the first step.

3. The storage device connection assembly of claim 1, wherein, The distal sidewall of the stapler body has a first cavity (11) on the proximal side near the mounting hole (14), and the mounting hole (14) is connected to the first cavity (11).

4. The storage device connection assembly of claim 3, wherein, It also includes a wire (5), the distal end of which is electrically connected to the second electrical connector (4); The distal sidewall of the stapler body is provided with a mounting groove (12) extending along the axial direction. The wire (5) is at least partially embedded in the mounting groove (12). The mounting groove is connected to the first cavity (11) through a wire through hole (13).

5. The storage device connection assembly of claim 1, wherein, The distal end of the stapler body has a first opening (15) on the distal side of the mounting hole (14), the distal end of the second electrical connector (4) is at least partially exposed in the first opening (15), and the proximal end of the actuator enters the interior of the distal end of the stapler body at least partially through the first opening (15).

6. The storage device connection assembly of claim 5, wherein, The actuator has a second opening (212) at its proximal end, through which the support (33) enters at least partially into the interior of the actuator.

7. A surgical stapler, characterized in that, Includes the storage device connection component as described in any one of claims 1 to 6.

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