Anastomosis components and anastomosing devices having the same

Abstract

This invention provides an anastomosis assembly and an anastomosis device having the same. The anastomosis assembly has a working chamber. The working chamber includes a first drive motor and a cutting blade. The first drive motor includes a motor shaft. The cutting blade includes a blade head disposed within the working chamber and a flexible blade rod connected to the blade head. The flexible blade rod includes a connecting end away from the blade head, and the connecting end is fixedly connected to the motor shaft. The flexible blade rod is configured to be driven by the first drive motor to wind around the motor shaft, thereby moving the blade head within the working chamber. Compared with the prior art, the anastomosis assembly of this invention, by driving the first drive motor so that the flexible blade rod winds around the motor shaft, can effectively shorten the space occupied by the anastomosis assembly in the extension direction of the flexible blade rod, reduce the length of the anastomosis assembly, and make the structure of the anastomosis assembly more compact and portable. The flexible blade rod drives the blade head to move within the working chamber to complete the cutting task, improving the flexibility of the anastomosis assembly in operating within a limited space.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and more particularly to a matching assembly and a matching device having the same. Background Technology

[0002] In the field of surgical medicine, especially in sleeve gastrectomy, cutting and anastomosis are crucial steps. However, due to the special and complex nature of the surgical site, the distance required for cutting and anastomosis is often quite long. Traditional cutting and anastomosis devices typically use rigid blades, and this design necessitates an increase in the length of the rigid blade when facing long-distance cuts.

[0003] To drive the long, rigid scalpel handle, traditional designs often employ a lead screw drive mechanism. This results in the stapling gun section being almost twice the length of the scalpel handle. This not only increases the size and weight of the stapling device but also limits its flexibility and operability in confined surgical spaces.

[0004] In view of this, it is indeed necessary to improve the existing staplers in order to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an anastomosis assembly and an anastomosis device having the same, which can retract and extend a flexible blade to reduce the size of the anastomosis device.

[0006] To achieve the above objectives, the present invention provides a fitting assembly having a working cavity, comprising:

[0007] The first drive motor includes a motor shaft; and,

[0008] The cutting blade includes a blade head disposed within a working chamber and a flexible blade shank connected to the blade head. The flexible blade shank includes a connecting end located away from the blade head, and the connecting end is fixedly connected to a motor shaft.

[0009] The flexible tool holder is configured to be driven by the first drive motor to wind around the motor shaft and drive the tool head to move within the working chamber.

[0010] Optionally, the flexible tool bar extends along a first direction, and the motor shaft extends along a second direction perpendicular to the first direction. The motor shaft rotates, causing the connecting end to wind onto the motor shaft, and causing the flexible tool bar to be layered and wound onto the motor shaft.

[0011] Optionally, it also includes a staple cartridge holder, which includes a first end near the first drive motor and a second end away from the first drive motor, with a guide groove at the position of the staple cartridge holder near the second end for the flexible tool bar to pass through.

[0012] Optionally, it also includes a pusher slider, which is disposed on the side of the cutter head facing the second end. The pusher slider is provided with a snap-fit ​​groove, which includes an opening near the second end and an abutment portion disposed opposite to the opening. The cutter head is at least partially located in the snap-fit ​​groove and abuts against the abutment portion.

[0013] Optionally, the cutter head is provided with a first locking part, and the flexible cutter bar is provided with a second locking part for locking with the first locking part; the flexible cutter bar also includes a lower side facing the staple cartridge seat, and the lower side near the second locking part is provided with a relief groove for avoiding the pusher slider.

[0014] Optionally, it also includes an anvil, the anvil and the staple cartridge seat are arranged to form a working cavity, the anvil is rotatably connected to the second end, and at the first end, the anvil and the staple cartridge seat are configured to be close to or far from each other.

[0015] Optionally, the cutter head includes an upper beam and a lower beam arranged opposite to each other, and a cutting edge located between the upper beam and the lower beam, the cutting edge being inclined and facing the first end; the anvil seat is provided with a first groove for the upper beam to slide, and the staple cartridge seat is provided with a second groove for the lower beam to slide.

[0016] Optionally, it also includes a second drive motor and a lifting arm, one end of which is connected to the second drive motor and the other end is connected to the anvil, configured to drive the anvil away from or towards the staple cartridge via the second drive motor.

[0017] Optionally, the lifting arm is provided with a slot for the passage of a flexible tool bar.

[0018] To achieve the above objectives, the present invention also provides a stapler including the above-described stapler components.

[0019] Compared with the prior art, the technical solutions of the embodiments of the present invention have the following beneficial effects:

[0020] The anastomosis assembly of the present invention, by driving a first drive motor, causes a flexible blade to wrap around the motor shaft, which effectively shortens the space occupied by the anastomosis assembly in the extension direction of the flexible blade, reduces the length of the anastomosis assembly, and makes the structure of the anastomosis assembly more compact and portable. The first drive motor drives the flexible blade to wrap around the motor shaft and moves the blade head within the working cavity to accurately complete the cutting task, improving the flexibility and convenience of the anastomosis assembly in performing medical surgical operations in a limited space. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the matching component according to a preferred embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A cross-sectional view of the mating component;

[0023] Figure 3 This is a schematic diagram of the structure of the cutting blade according to a preferred embodiment of the present invention;

[0024] Figure 4 yes Figure 3 Schematic diagram of the middle cutter head;

[0025] Figure 5 This is a schematic diagram of the staple cartridge holder according to a preferred embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the anvil seat conforming to a preferred embodiment of the present invention;

[0027] Figure 7 yes Figure 1 Assembly drawing of the staple cartridge, cutting blade, and staple cartridge holder;

[0028] Figure 8 yes Figure 7 Partial view of the assembly of the middle cutting blade and the pusher slider;

[0029] Figure 9 yes Figure 8 A schematic diagram of the push pin slider in the process;

[0030] Figure 10 This is a schematic diagram of the lifting arm according to a preferred embodiment of the present invention. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0033] Additionally, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Please see Figures 1 to 10As shown, an embodiment of the present invention provides an anastomosis device (not shown) including an anastomosis assembly 100. The anastomosis assembly 100 includes a barrel 1, a cutting blade 2, and a drive assembly 8. The barrel 1 has an anvil 4 and a staple cartridge seat 5 connected to each other. The cutting blade 2 is connected between the anvil 4 and the staple cartridge seat 5 and is slidable relative to them. The drive assembly 8 can drive the anvil 4 and the staple cartridge seat 5 to be configured to move away from or close to each other, i.e., to open and close the barrel 1. The mutually distant anvil 4 and staple cartridge seat 5 are generally V-shaped. The anastomosis assembly 100 ensures that the tissue is fully clamped before cutting, has a greater clamping force, and reduces tissue slippage during the anastomosis process, thus improving anastomosis efficiency.

[0035] In existing staplers, the barrel 1 is almost twice the length of the cutting blade 2. The barrel 1 houses the cutting blade 2. When the cutting blade 2 cuts, the blade slides on the staple cartridge seat 5. When the cutting blade 2 has finished cutting, the blade retracts to the side of the barrel 1 away from the staple cartridge seat 5.

[0036] Please see Figures 1 to 2 As shown, the anvil 4 and the staple cartridge 5 surround and form a working cavity 3. The working cavity 3 includes a first drive motor 31 and a cutting blade 2. The output end of the first drive motor 31 is provided with a motor shaft 311.

[0037] Please see Figures 3 to 4 As shown, the cutting blade 2 includes a blade head 21 disposed within the working chamber 3 and a flexible blade shank 22 connected to the blade head 21. The flexible blade shank 22 includes a connecting end 221 away from the blade head 21, and the connecting end 221 is fixedly connected to the motor shaft 311. The flexible blade shank 22 is configured to be driven by the first drive motor 31 to wind around the motor shaft 311, thereby moving the blade head 21 within the working chamber 3.

[0038] In this embodiment, by driving the first drive motor 31, the flexible blade 22 is wound around the motor shaft 311, which effectively shortens the length of the barrel 1 required for the flexible blade 22 to retract, thereby shortening the space occupied by the anastomosis assembly 100 in the extension direction of the flexible blade 22, reducing the length of the anastomosis assembly 100, and making the structure of the anastomosis assembly 100 more compact and portable, suitable for medical surgeries that need to be performed in a limited space. The first drive motor 31 drives the flexible blade 22 to wrap around the motor shaft 311, and drives the blade head 21 to move within the working chamber 3, realizing the cutting task of the cutting blade 2.

[0039] The cutting head 21 includes an upper beam 211, a lower beam 212, and a cutting edge 213 located between the upper beam 211 and the lower beam 212. The upper beam 211 is connected to the anvil 4, and the lower beam 212 is connected to the staple cartridge 5. The cutting edge 213 is positioned near the upper beam 211, and the flexible cutting rod 22 is positioned near the lower beam 212. Initially, the cutting head 21 is located at the end of the anvil 4 and staple cartridge 5 furthest from the first drive motor 31, and the flexible cutting rod 22 extends from the cutting head 21 toward the end of the anvil 4 and staple cartridge 5 closest to the first drive motor 31. Tissue is located on the side of the cutting head 21 closest to the flexible cutting rod 22. When the stapler cuts, the first drive motor 31 drives the flexible cutting rod 22 to move, thereby causing the cutting edge 213 on the cutting head 21 to cut the tissue. Preferably, the cutting edge 213 is inclined and faces the first drive motor 31. This design allows the blade 213 to cut into the target tissue more smoothly during cutting, reducing cutting resistance. The blade head 21 is provided with a first locking part 214, which is an opening in this embodiment.

[0040] Preferably, the inclination angle of the cutting edge 213 relative to the flexible cutting rod 22 is 30°-45°. The cutting edge 213 is inclined towards the flexible cutting rod 22, and the cutting edge 213 is a bevel, which can limit the tissue to be cut below the cutting edge 213, thereby improving cutting efficiency.

[0041] In some embodiments, the cutter head 21 is a one-piece molded structure. The upper beam 211 and the lower beam 212 are generally rectangular in shape. The length of the lower beam 212 is less than the length of the upper beam 211.

[0042] In this embodiment, the upper beam 211 and the lower beam 212 are longer and wider, which can provide greater clamping force after the anvil 4 and the staple cartridge 5 are closed, so that the anvil 4 and the staple cartridge 5 remain in a closed state.

[0043] The first direction is defined as the length extension direction of the mating assembly 100, and the second direction is defined as the height extension direction of the mating assembly 100. The flexible blade shank 22 extends along the first direction, and the motor shaft 311 extends along the second direction perpendicular to the first direction. Rotation of the motor shaft 311 causes the connecting end 221 to wind around the motor shaft 311, and also causes the flexible blade shank 22 to be layered and wound around the motor shaft 311. Through the layering and winding of the flexible blade shank 22, the cutting blade 2 can move and extend flexibly within the working cavity 3, thereby adapting to the cutting needs of different positions.

[0044] Preferably, the motor shaft 311 rotates in a direction perpendicular to the extension direction of the flexible cutter bar 22, which can ensure that the flexible cutter bar 22 maintains a stable motion trajectory during the winding process, which is beneficial to the stable cutting of the cutting blade 2.

[0045] In some embodiments, the working cavity 3 is further provided with a winding element (not shown), and the flexible cutter bar 22 abuts against the motor shaft 311 and the winding element, and surrounds both. When the motor shaft 311 rotates, the connecting end 221 is wound onto the motor shaft 311, and the flexible cutter bar 22 is layered and wound around the motor shaft 311 and the winding element. The winding element provides an additional support point for the flexible cutter bar 22, allowing it to wind and unwind more stably when the motor shaft 311 rotates, and increasing the winding radius of the flexible cutter bar 22.

[0046] The flexible blade shank 22 is provided with a second engaging portion 222 for engaging with the first engaging portion 214. In this embodiment, the second engaging portion 222 is a protrusion that matches the shape of the first engaging portion 214. The second engaging portion 222 on the flexible blade shank 22 matches the first engaging portion 214 on the blade head 21. This engaging design ensures a stable connection between the flexible blade shank 22 and the blade head 21, avoiding accidents caused by loosening or detachment during surgery.

[0047] The flexible scalpel 22 also includes a lower side 223 facing the staple cartridge 5. Near the second locking portion 222, the lower side 223 has a clearance groove 224 for avoiding the movement trajectory of the staple pusher slider 6. The clearance groove 224 on the lower side 223 cleverly avoids the movement trajectory of the staple pusher slider 6 in the staple cartridge 5, preventing interference between the staple pusher slider 6 and the flexible scalpel 22 during surgery.

[0048] Please see Figures 5 to 6 As shown, the staple cartridge 5 includes a first end 51 near the first drive motor 31 and a second end 52 away from the first drive motor 31. The position of the staple cartridge 5 near the second end 52 provides a guide groove 53 for the flexible scalpel 22 to pass through, which ensures the accurate guidance of the flexible scalpel 22 during the operation and avoids operational errors caused by deviation or shaking.

[0049] The pin holder 4 is provided with a first sliding groove 41. The pin cartridge holder 5 is provided with a second sliding groove 54. The first sliding groove 41 and the second sliding groove 54 extend along a first direction. The first sliding groove 41 allows the upper beam 211 to slide, and the second sliding groove 54 allows the lower beam 212 to slide. The upper beam and the lower beam 212 can move smoothly along a predetermined trajectory, ensuring the stable movement of the cutting blade 2 and helping to protect the flexible blade holder 22.

[0050] Preferably, the first groove 41 is located in the middle of the anvil seat 4, and the second groove 54 is located in the middle of the staple cartridge seat 5. The first groove 41 and the second groove 54 not only guide the cutting blade 2, but also limit its movement when the cutting blade 2 is cutting, preventing the blade head 21 from shaking and improving cutting stability.

[0051] In the initial state, the first drive motor 31 rotates, driving the flexible cutter bar 22 to move to the second end 52, and the upper beam 211 is housed in the anvil seat 4. At this time, the anvil seat 4 can rotate relative to the staple cartridge seat 5, causing the anvil seat 4 and the staple cartridge seat 5 to open, facilitating tissue entry. Then, the anvil seat 4 and the staple cartridge seat 5 are controlled to close. At this time, the first drive motor 31 rotates in the opposite direction, driving the flexible cutter bar 22 to move towards the first end 51, and the upper beam 211 enters the first slide groove 41, further restricting the relative position of the anvil seat 4 and the staple cartridge seat 5 to keep them in a closed state. At the same time, due to the widened and lengthened upper beam 211 and lower beam 212, it is possible to ensure that the tissue is cut after being fully clamped, providing greater clamping force for the anastomosis assembly 100, and reducing tissue slippage during the anastomosis process, thereby improving anastomosis efficiency.

[0052] Please see Figures 7 to 9 As shown, a pusher slider 6 and a staple cartridge 7 are installed inside the staple cartridge holder 5. The pusher slider 6 and the staple cartridge 7 are assembled together and then installed in the staple cartridge holder 5. The pusher slider 6 is located on the side of the cutter head 21 facing the second end 52. The pusher slider 6 has a locking groove 61, which includes an opening 611 near the second end 52 and an abutment portion 612 opposite to the opening 611. The cutter head 21 is at least partially located in the locking groove 61 and abuts against the abutment portion 612. This arrangement limits the cutting head 21 and controls the locking depth of the cutting head 21. The pusher slider 6 is locked on the side of the cutting head 21 away from the cutting edge 213, that is, the pusher slider 6 is located near the lower beam 212, and the flexible cutter bar 22 is connected to the pusher slider 6. The pusher slider 6 can slide along the first direction following the cutting head 21. Specifically, the pusher slider 6 is located on the outer wall surface of the second slide groove 54 and slides on the outer wall surface of the second slide groove 54. This ensures that the cutting and stapling actions are performed almost simultaneously, avoiding surgical errors caused by uncoordinated movements.

[0053] The staple cartridge 7 contains multiple staples 71 and a staple pusher 72 connected to the multiple staples 71. The staple pusher slider 6 extends into the staple cartridge 7 and cooperates with the staple pusher 72 to push the staples 71 toward the anchor seat 4 for anastomosis. Specifically, after the tissue enters between the anchor seat 4 and the staple cartridge 5, the first drive motor 31 drives the flexible blade 22 to move toward the first end 51, causing the blade head 21 to slide, which in turn causes the staple pusher slider 6 to slide. The staple pusher slider 6 gradually pushes the staple pusher 72 toward the anchor seat 4, so that the staples 71 pass through the tissue and form anastomosis under the action of the anchor seat 4. Then the blade head 21 cuts the anastomosed tissue.

[0054] In some embodiments, the drive component 8 includes a drive module for driving the opening and closing of the mating component 100.

[0055] In other embodiments, the drive assembly 8 includes a first drive motor 31 and a drive module. The first drive motor 31 is used to control the forward / backward movement of the flexible cutter bar 22, and the drive module is used to drive the opening and closing of the mating assembly 100.

[0056] Please combine Figure 1 , Figure 2 and Figure 10 As shown, the drive module includes a drive module 81, a lifting arm 82, and a drive arm 83 connecting the mating assembly 100 and the drive module 81. The drive module 81 is configured to drive the drive arm 83 to move linearly. The end of the lifting arm 82 near the drive arm 83 is rotatably connected to the drive arm 83 to form a cam structure, and the end of the lifting arm 82 near the drive arm 83 can move under the drive of the drive arm 83. Thus, by controlling the drive module 81, the drive arm 83 can be moved, causing the lifting arm 82 to move accordingly, thereby controlling the opening and closing range of the anvil 4 and the staple cartridge 5.

[0057] The lifting arm 82 has a slot 821 for the flexible cutter bar 22 to pass through, which limits the movement of the flexible cutter bar 22. This design allows the flexible cutter bar 22 to move flexibly under the guidance of the lifting arm 82, thereby adapting to cutting requirements at different angles and positions.

[0058] One end of the lifting arm 82 is connected to the second drive motor 811, and the other end is connected to the anvil 4. It is configured to drive the anvil 4 away from or towards the staple cartridge 5 via the second drive motor 811. The anvil 4 has a first guide groove 5342 near its first end 51, and the first end 51 of the staple cartridge 5 has a second guide groove 53 corresponding to the first guide groove 5342. Guide shafts 822 are provided at both ends of the lifting arm 82, and are slidably disposed within the first guide groove 5342 and the second guide groove 53, respectively. The lifting arm 82 slides along the first guide groove 5342 and the second guide groove 53 via the guide shafts 822, lifting the anvil 4 and causing it to rotate relative to the second end 52 of the staple cartridge 5. Specifically, at the first end 51, the anvil 4 and the staple cartridge 5 are configured to move closer to or further away from each other.

[0059] In some embodiments, the lifting arm 82 has a first guide hole and a second guide hole at both ends, which are respectively aligned with the first guide shaft 822 and the second guide shaft 822. A pin passes through the first guide hole and the first guide shaft 822 to connect the lifting arm 82 and the pin holder 4. A pin passes through the second guide hole and the second guide shaft 822 to connect the lifting arm 82 and the pin cartridge seat 5.

[0060] In this embodiment, the drive module 81 includes a second drive motor 811 and a screw 812 that can rotate under the drive of the second drive motor 811. A transmission member 813 is provided on the screw 812, and the drive arm 83 is fixedly connected to the transmission member 813 and can move linearly with the rotation of the screw 812 under the drive of the transmission member 813.

[0061] In some embodiments, the screw 812 can be replaced by a telescopic rod, and the extension and retraction of the telescopic rod is driven by the second drive motor 811 to move the transmission member 813, thereby driving the drive arm 83 to move.

[0062] In summary, the anastomosis assembly 100 of the present invention, by driving the first drive motor 31, causes the flexible scalpel 22 to wrap around the motor shaft 311, which effectively shortens the length of the gun barrel 1 required for the flexible scalpel 22 to retract, thereby shortening the space occupied by the anastomosis assembly 100 in the extension direction of the flexible scalpel 22. This configuration reduces the length of the anastomosis assembly 100, making its structure more compact and portable, suitable for medical surgeries requiring operation in confined spaces.

[0063] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An anastomosis assembly having a working cavity, characterized in that, include: The first drive motor includes a motor shaft; and, The cutting blade includes a blade head disposed in the working chamber and a flexible blade rod connected to the blade head. The flexible blade rod includes a connecting end away from the blade head. The connecting end is fixedly connected to the motor shaft. The flexible blade rod extends along a first direction, and the motor shaft extends along a second direction perpendicular to the first direction. When the motor shaft rotates, it drives the connecting end to wind around the motor shaft, and drives the flexible blade rod to be layered and wound around the motor shaft. The staple cartridge seat includes a first end near the first drive motor and a second end away from the first drive motor. The staple cartridge seat is provided with a guide groove near the second end for the flexible tool bar to pass through. An anvil and a staple cartridge seat are arranged to form the working cavity. The anvil is rotatably connected to the second end. At the first end, the anvil and the staple cartridge seat are configured to be able to move closer to or further away from each other. The flexible tool holder is configured to be driven by the first drive motor to wind around the motor shaft and drive the tool head to move within the working cavity.

2. The anastomosis assembly according to claim 1, characterized in that, It also includes a pusher slider, which is disposed on the side of the cutter head facing the second end. The pusher slider is provided with a snap-fit ​​groove, which includes an opening near the second end and an abutment portion disposed opposite to the opening. The cutter head is at least partially located in the snap-fit ​​groove and abuts against the abutment portion.

3. The anastomosis assembly according to claim 2, characterized in that, The cutter head is provided with a first locking part, and the flexible cutter bar is provided with a second locking part for locking with the first locking part; the flexible cutter bar also includes a lower side facing the staple cartridge seat, and the lower side near the second locking part is provided with a clearance groove for avoiding the pusher slider.

4. The anastomosis assembly according to claim 1, characterized in that, The cutter head includes an upper beam and a lower beam arranged opposite to each other, and a cutting edge located between the upper beam and the lower beam. The cutting edge is inclined and faces the first end. The pin holder is provided with a first groove for the upper beam to slide, and the pin cartridge is provided with a second groove for the lower beam to slide.

5. The anastomosis assembly according to claim 1, characterized in that, It also includes a second drive motor and a lifting arm, one end of which is connected to the second drive motor and the other end is connected to the anvil, configured to drive the anvil away from or closer to the staple cartridge via the second drive motor.

6. The anastomosis assembly according to claim 5, characterized in that, The lifting arm is provided with a slot for the flexible tool bar to pass through.

7. A stapler, characterized in that, Includes the anastomosis component as described in any one of claims 1-6.

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