Anastomat body and anastomat

Abstract

The invention provides an anastomat body and an anastomat. The anastomat body is connected with the nail bin assembly. The staple cartridge assembly comprises a jaw and a cutting knife. The anastomat body comprises a percussion assembly, a motor, a rotating assembly, a rotating motor, a head swinging assembly and a head swinging motor. The percussion assembly drives the cutting knife to percussion and retreat and drives the jaw to be opened and closed. The motor drives the percussion assembly to drive the cutting knife to percussion and retreat. The rotating assembly rotates to drive the nail bin assembly to circumferentially rotate around the central axis of the nail bin assembly. The rotating motor drives the rotating assembly to drive the nail bin assembly to rotate circumferentially. And the head swinging assembly drives the jaw to swing. The swing motor drives the swing assembly to drive the jaw to swing. According to the anastomat body, through the arrangement of the percussion assembly, the motor, the rotating assembly, the rotating motor, the head swinging assembly and the head swinging motor, circumferential rotation of the nail bin assembly and head swinging of the jaw are controlled in an electric mode, operation is convenient, and the operation precision and efficiency of an operation are improved.

Description

Technical Field

[0001] This application relates to the field of medical devices, and more particularly to a stapler body and a stapler. Background Technology

[0002] With the continuous development of medical device technology, electric staplers are gradually replacing traditional manual sutures or conventional staplers. Electric staplers utilize electric drive systems and automated control technology, enabling rapid and accurate connection and closure of tissues during surgery. This significantly reduces surgical time and trauma, minimizes the risk of tissue damage, bleeding, and infection, and promotes patient recovery and healing. Furthermore, electric staplers can provide consistent anastomosis force and pressure, unaffected by variations in manual operation, thus lowering the technical requirements for the operator.

[0003] In related technologies, the circumferential rotation of the staple cartridge assembly around its central axis and the oscillation of the jaws of the electric stapler are manually controlled, which is not only inconvenient to operate, but also affects the accuracy and efficiency of the surgery. Summary of the Invention

[0004] This application provides a stapler body and a stapler, which can electrically control the circumferential rotation of the staple cartridge assembly connected to the stapler body around its central axis and electrically control the jaw tilting head.

[0005] This application provides a stapler body connected to a stapler cartridge assembly. The stapler cartridge assembly includes jaws and a cutting blade. The stapler body includes a firing assembly, a motor, a rotating assembly, a rotary motor, a swivel assembly, and a swivel motor. The firing assembly drives the cutting blade to fire and retract, and drives the jaws to open and close. The motor drives the firing assembly to fire and retract the cutting blade. The rotating assembly rotates to drive the stapler cartridge assembly to rotate circumferentially around its central axis. The rotary motor drives the rotating assembly to rotate the stapler cartridge assembly circumferentially. The swivel assembly drives the jaws to swivel, and the swivel motor drives the swivel assembly to swing the jaws.

[0006] This application also provides a stapler, including the staple cartridge assembly and the stapler body.

[0007] The stapler body of this application, through the arrangement of a firing assembly, a motor, a rotating assembly, a rotating motor, a swing head assembly, and a swing head motor, realizes the electric control of the circumferential rotation of the staple cartridge assembly and the swing head of the jaws, which not only makes operation convenient but also improves the operation accuracy and efficiency of surgery. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the stapler according to an embodiment of this application;

[0009] Figure 2 yes Figure 1 An exploded view of the stapler shown;

[0010] Figure 3 yes Figure 2 The diagram shows the connection between the firing lever of the stapler body and some components of the staple cartridge assembly, where only part of the firing lever is shown;

[0011] Figure 4 yes Figure 3 An enlarged view of the circled area at point A in the schematic diagram shown;

[0012] Figure 5 yes Figure 1 The diagram shows the assembly of the fixing block, rotating shaft, and tilting head shaft of the fuselage.

[0013] Figure 6 yes Figure 1 The diagram shows the assembly of the fuselage's fixing block, rotating shaft, slider, and firing lever, with only a portion of the firing lever shown.

[0014] Figure 7 yes Figure 6 The diagram shown is a schematic of the firing lever and slider assembly, where only a portion of the firing lever is shown.

[0015] Figure 8 yes Figure 2 A schematic diagram of the fuselage clamps shown;

[0016] Figure 9 yes Figure 2 The cross-sectional view of the fuselage shown only shows some of the fuselage components and some of the firing levers;

[0017] Figure 10 yes Figure 2 The schematic diagram of the fuselage shown only shows some parts of the fuselage, some of the firing levers, and part of the first lever;

[0018] Figure 11 yes Figure 1 The diagram shows the assembly of the fixed block of the machine body with the swing head shaft, the second slider, the first rod, the second rod, and the third rod;

[0019] Figure 12 yes Figure 11 A schematic diagram of the first rod shown;

[0020] Figure 13 yes Figure 11 A schematic diagram of the second rod shown;

[0021] Figure 14 yes Figure 11 The diagram shown is a composite diagram of the first, second, and third rods after assembly, with only a portion of the first and third rods shown.

[0022] Figure 15 yes Figure 11 A schematic diagram of the second slider shown;

[0023] Figure 16 yes Figure 11 A schematic diagram of the swing switch shown;

[0024] Figure 17 yes Figure 2 The diagram shown is a partial assembly of some components of the fuselage, with only some sleeves shown.

[0025] Figure 18 yes Figure 17 A schematic diagram of the fixed block, rotating shaft, first gear, and second gear shown.

[0026] Figure 19 yes Figure 2 A schematic diagram of the fuselage shown;

[0027] Figure 20 yes Figure 19 The diagram shows the combination of the rotary control key and the rotary switch.

[0028] Figure 21 yes Figure 2 A schematic diagram of the power supply assembly shown;

[0029] Figure 22 yes Figure 1 A schematic cross-sectional view of the anastomosis device body is shown.

[0030] Figure 23 yes Figure 22 Enlarged view of the prescription box portion of the cross-sectional schematic diagram shown;

[0031] Figure 24 yes Figure 2 The diagram shown is a schematic of the power assembly and the fixing block after they are fixed together.

[0032] Figure 25 yes Figure 24 A cross-sectional view of the schematic diagram shown;

[0033] Figure 26 yes Figure 24 The diagram shown is a schematic of the power assembly after the housing has been removed.

[0034] Figure 27 yes Figure 24 Side view of the schematic diagram shown;

[0035] Figure 28 yes Figure 27 The side view shown is a cross-sectional view along line AA;

[0036] Figure 29 is Figure 27 A schematic cross-sectional view along line B-B of the side view shown;

[0037] Figure 30 is Figure 27 A schematic cross-sectional view along line C-C of the side view shown;

[0038] Figure 31 is Figure 1 A schematic view of the rubber sleeve shown;

[0039] Figure 32 is Figure 2 A schematic view of the power component without the rubber sleeve assembled;

[0040] Figure 33 is Figure 32 A schematic view of the power component with the rubber sleeve assembled;

[0041] Figure 34 is Figure 1 A schematic view of another perspective of the stapler shown. Detailed implementation manners

[0042] Here, the technical solutions in the embodiments (or "implementation manners") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description involves the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0043] If there are terms related to directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), then such terms are only used to explain the relative positional relationships and movement conditions between components in a certain specific posture (as shown in the accompanying drawings); if this specific posture changes, then the directional indication or positional relationship also changes accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of convenient description and cannot be understood as indicating or implying relative importance.

[0044] Refer Figures 1 to 4The stapler 200 of this application includes a stapler body 100 and a staple cartridge assembly 1 connected to the stapler body 100. The stapler body 100 includes a body 2, a power assembly 3, and a power supply assembly 4. The staple cartridge assembly 1 includes a staple cartridge connector 10, a cutting blade 11, jaws 12, a first connecting rod 13, and a second connecting rod 14. The jaws 12 are axially connected to the staple cartridge connector 10 and can swing left and right relative to the staple cartridge connector 10. The first connecting rod 13 is connected to the jaws 12, and the force on the first connecting rod 13 causes the jaws 12 to swing left and right relative to the staple cartridge connector 10. The second connecting rod 14 moves forward, causing the cutting blade 11 to move forward, and moves backward, causing the cutting blade 11 to move backward. In one embodiment, the second connecting rod 14 is connected to the cutting blade 11.

[0045] In one embodiment, the staple cartridge assembly 1 is detachably connected to the body 2 to facilitate replacement of the staple cartridge assembly 1. In another embodiment, the staple cartridge assembly 1 is also fixedly connected to the body 2 and cannot be detached.

[0046] In one embodiment, the power unit 3 is detachably connected to the machine body 2. In the event of power failure, the power unit 3 can be removed, and the jaws 12 can be opened manually using tools, or the cutting blade 11 can be retracted, making it safer. This also facilitates the replacement of the power unit 3, reducing operating costs. In another embodiment, the power unit 3 can also be fixedly connected to the machine body 2 and cannot be detached.

[0047] In one embodiment, the power supply assembly 4 is detachably connected to the body 2. In the event of power failure, the power supply assembly 4 can be removed, de-energizing the stapler 200, allowing for manual operation with tools to open the jaws 12 or retract the cutting blade 11, thus enhancing safety. This also facilitates the replacement of the power supply assembly 4, reducing operating costs. In another embodiment, the power supply assembly 4 can also be fixedly connected to the body 2 and cannot be detached.

[0048] In one embodiment, the staple cartridge assembly 1 is located at the front end of the device body 2, and the power assembly 3 is located at the rear end 292 of the outer casing 29 of the device body 2. The outer casing 29 includes a handle 290, and at least a portion of the power assembly 4 is located within the handle 290. The power assembly 4 avoids the power transmission direction of the stapler 200, thus preventing the power assembly 4 from being disconnected from the device body 2, ensuring the stability of the power supply, and reducing the risk of medical accidents; at the same time, the working load force of the stapler body 100 is consistent, which improves mechanical efficiency and reduces the mechanical failure rate, thereby improving safety.

[0049] The body 2 includes a firing rod 21. When the firing rod 21 advances, it drives the cutting knife 11 to advance. When the firing rod 21 retreats, it drives the cutting knife 11 to retreat. In one embodiment, the cutting knife 11 drives the jaws 12 to close. After the jaws 12 are closed, the cutting knife 11 continues to advance to fire. When the firing rod 21 retreats, it drives the cutting knife 11 to retreat. After the cutting knife 11 retreats, the jaws 12 open.

[0050] See Figure 4 , the jaws 12 are provided with a step 120 and a groove portion 121, and the cutting knife 11 includes a pressing portion 111. When the cutting knife 11 advances, the pressing portion 111 presses against the step 120, causing the jaws 12 to close. After the jaws 12 are closed, the cutting knife 11 continues to advance to fire. During this process, the pressing portion 111 moves along the groove portion 121 and always presses against the jaws 12, and the jaws 12 are always in a closed state. When the cutting knife 11 retreats until the pressing portion 111 disengages from the step 120, the pressure on the jaws 12 disappears and the jaws 12 open.

[0051] In this specification, "advance" refers to the forward movement of the stapler body 100; "retreat" in this specification refers to the backward movement of the stapler body 100.

[0052] See Figures 5 to 7 , in one embodiment, the stapler body 100 includes a firing assembly 101. The firing assembly drives the cutting knife 11 to fire and retreat and drives the jaws 12 to open and close. The power assembly 3 provides power to the firing assembly 101. In one embodiment, the stapler body 100 includes a rotating assembly 102. The rotating assembly 102 rotates to drive the cartridge assembly 1 to rotate circumferentially about its central axis. In one embodiment, the stapler body 100 includes a swing head assembly 103. The swing head assembly 103 drives the jaws 12 to swing. The rotating assembly 102 and the swing head assembly 103 can be controlled electrically or manually.

[0053] The firing assembly 101 includes a firing rod 21, a rotating shaft 221 and a slider 222. The firing rod 21 is connected to the slider 222. The slider 222 is threadedly connected to the rotating shaft 221. The power assembly 3 drives the rotating shaft 221 to rotate. The rotating shaft 221 drives the slider 222 to move back and forth along the rotating shaft 221. When the slider 222 moves forward along the rotating shaft 221, it drives the firing rod 21 to advance; when the slider 222 moves backward along the rotating shaft 221, it drives the firing rod 21 to retreat.

[0054] The firing rod 21 has a first plane 215. The body 2 includes a pressing block 216 and a sleeve 246. The firing rod 21 passes through the sleeve 246 to connect with the cutting knife 11. The second plane of the pressing block 216 contacts the first plane 215. The pressing block 216 is located within the sleeve 246 and does not rotate relative to the sleeve 246 to prevent the firing rod 21 from rotating relative to the sleeve 246, ensuring that the firing rod 21 does not rotate when moving forward and backward, so as to ensure stable cutting. One or more pressing blocks 216 can be provided. The multiple pressing blocks 216 are arranged in sequence along the length direction of the firing rod 21.

[0055] In one embodiment, the firing rod 21 is rotatably connected to the slider 222. The slider 222 has a first through hole 223, a first groove 224 and a second groove 225. The rotating shaft 221 is assembled in the first through hole 223. A first internal thread (not shown) is provided in the first through hole 223 to cooperate with the first external thread 2211 on the rotating shaft 221. The first groove 224 and the second groove 225 are arranged along the length direction of the firing rod 21. Along the radial direction of the firing rod 21, the width of the first groove 224 is greater than the width of the second groove 225. The firing rod 21 includes a circular first resisting portion 211 at one end thereof, which does not restrict the circumferential rotation of the firing rod 21 about its central axis. The first resisting portion 211 is located within the first groove 224 and abuts against the slider 222 to prevent the firing rod 21 from disengaging from the slider 222 along its length direction.

[0056] The firing rod 21 includes a main body portion 212 and a connecting portion 213 connected to the main body portion 212. The diameter of the connecting portion 213 is smaller than the diameter of the main body portion 212 and smaller than the diameter of the first resisting portion 211. The connecting portion 213 is located within the second groove 225. The diameter of the connecting portion 213 can also be the same as the diameter of the main body portion 212. The front end of the main body portion 212 has a first hook portion 214 to be fixed to the second hook portion 141 of the second connecting rod 14, so as to fix the firing rod 21 to the second connecting rod 14 and drive the second connecting rod 14 to move forward or backward. Along the height direction of the stapler body 100, the rotating shaft 221 is located above the firing rod 21.

[0057] The body 2 further includes a switch 231. When the slider 222 retreats to trigger the switch 231, the program controls the power assembly 3 to stop rotating, ensuring the accuracy of the termination position of the cutting knife 11. Combined Figure 1 , the body 2 further includes a firing control key 232 and a retreat control key 233. When operating the firing control key 232, the power assembly 3 drives the firing rod 21 to move forward. When operating the retreat control key 233, the power assembly 3 drives the firing rod 21 to move backward.

[0058] See Figures 8 to 10The fuselage 2 also includes a clamping plate 26. The clamping plate 26 has a first groove 2610, a first hole 2611, a second hole 2612, and a third hole 2613. The first hole 2611 and the second hole 2612 are located at opposite ends of the first groove 2610. The third hole 2613 is located below the first hole 2611 to allow the firing lever 21 to pass through. The diameter of the firing lever 21 matches the diameter of the third hole 2613 to prevent the firing lever 21 from wobbling in its radial direction. The slider 222 is located within the first groove 2610 and moves back and forth along the first groove 2610, ensuring that the slider 222 slides without wobbling.

[0059] The clamping plate 26 has a through hole 2600 communicating with the first slide groove 2610, allowing the switch 231 to pass through and enter the first slide groove 2610. The body 2 also includes a switch circuit board 230, on which the switch 231 is located. The clamping plate 26 has a support portion 260 located below the switch circuit board 230 to support the switch circuit board 230 and bear the pressure when the slider 222 presses down on the switch 231, ensuring that the switch 231 is successfully pressed into place. During assembly, the end of the switch circuit board 230 is first pushed to the outside of the support portion 260, and then pushed into the top of the support portion 260. Therefore, the length of the through hole 2600 and the length of the switch 231 have sufficient clearance to ensure push-pull space during the assembly of the switch 231.

[0060] The rotating shaft 221 includes a threaded portion 2212, limiting ends 2213 located at opposite ends of the threaded portion 2212, a second abutment portion 2214, and a first assembly portion 2215 connected to the second abutment portion 2214. The first assembly portion 2215 is assembled in the second hole 2612.

[0061] In one embodiment, the fuselage 2 includes a planar thrust bearing 2614 assembled within a second hole 2612. A limiting end 2213 of the rotating shaft 221 is assembled within a first hole 2611, and a first assembly portion 2215 protrudes from the bearing through hole 2615 of the planar thrust bearing 2614, ensuring radial positioning of the rotating shaft 221. The limiting end 2213 of the rotating shaft 221 is assembled within the first hole 2611, and a second abutting portion 2214 abuts against the planar thrust bearing 2614, ensuring no axial movement of the rotating shaft 221.

[0062] When the slider 222 drives the firing rod 21 to move forward, the stapler 200 is in the cutting and stapling working state. In this state, the load is the largest, and the rotating shaft 221 will receive a great backward thrust. The setting of the flat thrust bearing 2614 converts the sliding friction into rolling friction, greatly reducing the mechanical loss of the stapler 200 and improving the transmission efficiency. At the same time, it also avoids the heating deformation of the rotating shaft 221 caused by friction, resulting in unstable cutting and stapling of the stapler 200. The second resisting portion 2214 is in surface contact with the flat thrust bearing 2614, ensuring the smooth cooperation between the rotating shaft 221 and the flat thrust bearing 2614 and enabling it to withstand a large thrust.

[0063] The fuselage 2 includes a fixing block 28 fixed to the clamping plate 26. Along the advancing direction of the firing rod 21, the fixing block 28 is located behind the clamping plate 26. The fixing block 28 and the clamping plate 26 can be fixed by means such as snap-fastening, welding or screw locking.

[0064] The flat thrust bearing 2614 is arranged in the second hole 2612, fixed at the rear end by the fixing block 28 and fixed at the front end by the second resisting portion 2214, ensuring the radial and axial positioning of the flat thrust bearing 2614 while withstanding a large thrust.

[0065] The fixing block 28 is provided with a through first perforation 281, a perforation 282 and a third perforation 283. The first assembling portion 2215 is assembled in the first perforation 281.

[0066] In one embodiment, the first hole 2611 is a blind hole. Along the axial direction of the rotating shaft 221, the end of the limiting end portion 2213 abuts against the clamping plate 26 to prevent the rotating shaft from moving forward without play. In another embodiment, a third resisting portion can also be provided on the side of the rotating shaft 221 at the limiting end portion 2213 to abut against the clamping plate 26 to prevent the rotating shaft 221 from moving forward without play.

[0067] The clamping plate 26 is provided with a second chute 2620, a pair of fourth holes 2621 located on opposite sides of the second chute 2620. The clamping plate 26 is provided with a third groove 2630 and a pair of fifth holes 2631 located on opposite sides of the third groove 2630. The clamping plate 26 is provided with a fourth chute 2622 and a connecting hole 2624 connecting the fourth chute 2622 and the second chute 2620.

[0068] See Figure 5 、 Figure 8 and Figures 10 to 11, in one embodiment, the swing head assembly 103 includes a swing head rotating shaft 251, a second slider 252 rotatably connected to the swing head rotating shaft 251, a first rod 253 fixed to the second slider 252, a second rod 254 connected to the first rod 253, and a third rod 255 connected to the second rod 254. The third rod 255 is connected to the jaw 12. The power assembly 3 provides power to the swing head assembly 103. The power assembly 3 drives the swing head rotating shaft 251 to rotate, the swing head rotating shaft 251 drives the second slider 252 to move along its length direction, and the second slider 252 drives the first rod 253, the second rod 254, and the third rod 255 to move forward or backward, so as to drive the jaw 12 to swing its head.

[0069] The opposite ends of the swing head rotating shaft 251 are respectively assembled in a pair of fourth holes 2621, and the second slider 252 is located in the second chute 2620 and slides back and forth along the second chute 2620. The first rod 253 passes through the connection hole 2624 and is then assembled in the fourth chute 2622 and can slide back and forth along the fourth chute 2622, ensuring the smoothness of the thrust direction when the jaw 12 swings its head. A part of the swing head rotating shaft 251 is assembled in the third through hole 283.

[0070] The fuselage 2 includes a blocking portion 256 assembled on the clamping plate 26 and located above the first rod 253, which prevents the first rod 253 from moving upward after being stressed. In one embodiment, the blocking portion 256 is a pin. In one embodiment, the blocking portion 256 is provided with two, and are respectively located at both ends in the length direction of the second chute 2620, preventing one end of the first rod 253 from tilting up.

[0071] See Figures 11 to 16 , the first rod 253 includes a first base portion 2531 and a first positioning portion 2532 and a second positioning portion 2533 located at opposite ends of the first base portion 2531. The first base portion 2531 is flat and is located in the fourth chute 2622. The first positioning portion 2532 is fixed to the second slider 252. The first positioning portion 2532 is provided with a downwardly opening positioning groove 2535.

[0072] The second positioning portion 2533 is assembled to the second rod 254. The second positioning portion 2533 is provided with an assembly hole 2534. The first positioning portion 2532 and the first base portion 2531 are coplanar. The plane where the second positioning portion 2533 is located is perpendicular to the plane where the first base portion 2531 is located.

[0073] The second lever 254 includes a second base 2541 and protrusions 2542 and a third positioning portion 2543 located at opposite ends of the second base 2541. The third positioning portion 2543 includes a supporting portion 2546 and a protrusion 2547 extending from the supporting portion 2546. A slot 2548 is provided on the protrusion 2547. The protrusion 2547 is assembled within an assembly hole 2534. The fuselage 2 includes a retaining spring 2549 assembled into the slot 2548. The retaining spring 2549 and the supporting portion 2546 are located on opposite sides of the second positioning portion 2533. The second lever 254 is assembled onto the first lever 253 and can rotate circumferentially relative to the first lever 253 around the firing lever 21. A through hole 2545 is provided on the third positioning portion 2543. Figure 5 Through hole 2545 for firing rod 21 to pass through.

[0074] The third rod 255 includes a third base 2551 and a fourth positioning portion 2552 and a fifth positioning portion 2553 located at opposite ends of the third base 2551. The fourth positioning portion 2552 has a limiting hole 2554. A protrusion 2542 is inserted into the limiting hole 2554 to connect the second rod 254 and the third rod 255. The fifth positioning portion 2553 has a third hook portion 2555. Figure 3 The third hook 2555 is fixed to the fourth hook 131 of the first connecting rod 13 to fix the third rod 255 and the first connecting rod 13. The second rod 254 can also be integrally set with the third rod 255.

[0075] The second slider 252 is threadedly connected to the oscillating head shaft 251. When the oscillating head shaft 251 rotates, the second slider 252 moves forward along the oscillating head shaft 251, driving the second rod 254, the third rod 255, and the first connecting rod 13 forward, causing the jaws 12 to swing to the left. When the second slider 252 retracts along the oscillating head shaft 251, it drives the second rod 254, the third rod 255, and the first connecting rod 13 to retract, causing the jaws 12 to swing to the right. (See reference for right swing direction.) Figure 3 In the X1 direction, the left head swing direction reference Figure 3 The X2 direction. The oscillating head of jaw 12 is electrically controlled, improving the precision and efficiency of surgical operations. Electrically controlling the oscillating head of jaw 12 not only facilitates operation but also improves the precision and efficiency of surgical procedures.

[0076] The second slider 252 has a second through hole 2520 and a receiving groove 2521. The second through hole 2520 allows the swing head shaft 251 to pass through, and the second through hole 2520 has a second internal thread (not shown) that engages with the second external thread 2512 of the swing head shaft 2511. The receiving groove 2521 is recessed from the top of the second slider 252. The second slider 252 includes a positioning block 2522 located in the receiving groove 2521. A first positioning part 2532 is received in the receiving groove 2521, and the positioning block 2522 is received in the positioning groove 2535 to fix the second slider 252 and the first rod 253.

[0077] The bottom of the second slider 252 includes a first pressing part 2523, a second pressing part 2524, a first clearance groove 2525, and a second clearance groove 2526. The body 2 includes a swing switch 257. The swing switch 257 includes a first trigger part 2571 and a second trigger part 2572.

[0078] In the initial position, the first trigger part 2571 is pressed and closed by the first crimping part 2523, and the second trigger part 2572 is pressed and closed by the second crimping part 2524.

[0079] In the initial position, when the oscillating head shaft 251 drives the second slider 252 forward, the first trigger part 2571 is continuously pressed by the first pressing part 2523, while the second trigger part 2572, which was previously pressed by the second pressing part 2524, enters the second clearance groove 2526 and springs out. At this time, the second slider 252 can continue to move forward until the first pressing part 2523 completely leaves the first trigger part 2571, the first trigger part 2571 springs up, the program controls the power component 3 to stop rotating, and the second slider 252 stops moving forward, having reached the previous limit position.

[0080] In the initial position, when the oscillating head shaft 251 drives the second slider 252 to retract, the second trigger part 2572 is continuously pressed by the second pressing part 2524, while the first trigger part 2571, which was previously pressed by the first pressing part 2523, enters the first clearance groove 2525 and springs out. At this time, the second slider 252 can continue to retract until the second pressing part 2524 completely leaves the second trigger part 2572, at which point the second trigger part 2572 springs up, and the program-controlled power assembly 3 stops rotating. At this point, the second slider 252 stops retracting and moves to its rear limit position.

[0081] When the second slider 252 is at the front / rear extreme position, the program controls that the power component 3 can only move in the opposite direction. For example, when the second slider 252 is at the front extreme position, if the swing head control key 258 is manipulated to make the jaw 12 swing left, the power component 3 does not rotate; if the swing head control key 258 is manipulated to make the jaw 12 swing right, the power component 3 drives the second slider 252 to retreat, and the first trigger part 2571 changes from the popped state to the state of being pressed by the first crimping part 2523. When it moves to the initial position, the second trigger part 2572 is also pressed again, at which time the power component 3 stops rotating and the jaw 12 returns to the centered position.

[0082] The cooperation between the second slider 252 and the swing head switch 257 achieves precise limiting, thus ensuring the stability of the left and right extreme positions of the swing of the jaw 12. After returning to the correct position, it is centered without deviation, ensuring that the jaw 12 can be smoothly removed from the trocar after the operation.

[0083] Combined Figure 1 , the fuselage 2 includes a swing head control key 258 to control the left and right swing of the jaw 12.

[0084] Refer Figures 5 to 6 to Figure 10 , in one embodiment, the rotating component 102 includes a rotating shaft 241 and a first gear 242 fixed to the rotating shaft 241. The power component 3 provides power to the rotating component 102 to drive the first gear 242 to rotate. The power component 3 drives the rotating shaft 241 to rotate, and the rotating shaft 241 drives the first gear 242 to rotate. In one embodiment, the first gear 242 and the rotating shaft 241 can be fixed by screws. The rotating shaft 241 is located in the third groove 2630 and its opposite ends respectively pass through a pair of fifth holes 2631. A part of the rotating shaft 241 is assembled in the through hole 282.

[0085] The fuselage 2 includes a first sub-circuit board 271 fixed on the outer side wall of the splint 26. The first sub-circuit board 271 is provided with a rotation switch 2711 and a safety switch 2712. The first sub-circuit board 271 is arranged in the vertical direction. One of the blocking parts 256 is located behind the first sub-circuit board 271. The first sub-circuit board 271 and the splint 26 can be locked by screws. In one embodiment, the splint 26 is provided with an L-shaped clamping part 264 to assist in positioning the first sub-circuit board 271.

[0086] In one embodiment, there are a pair of first sub-circuit boards 271. Along the width direction of the stapler body 100, the pair of first sub-circuit boards 271 are respectively located on the opposite sides of the splint 26.

[0087] Refer Figures 17 to 19The rotating assembly 102 also includes a second gear 244, a rotating head 245, and a sleeve 246. The second tooth 2441 of the second gear 244 meshes with the first tooth 2420 of the first gear 242.

[0088] The rotating head 245 is connected to the staple cartridge assembly 1. The rotating head 245 includes a first front end 2451 facing the staple cartridge assembly 1 and a first rear end 2452 disposed opposite to the first front end 2451. The first front end 2451 is connected to the staple cartridge assembly 1. The body 2 includes a housing 29, within which at least a portion of the firing assembly 101, at least a portion of the rotating assembly 102, and at least a portion of the oscillating head assembly 103 are located. The housing 29 includes a second front end 291 facing the staple cartridge assembly 1 and a tail end 292 disposed opposite to the second front end 291. The tail end 292 is relatively away from the staple cartridge assembly 1. The first rear end 2452 is rotatably connected to the second front end 291. The second gear 244 has a through cavity 2440 for the firing rod 21 to pass through. A portion of the clamp 26 is located within the cavity 2440. In one embodiment, the first rear end 2452 covers the periphery of the second front end 291.

[0089] In one embodiment, the second front end 291 is provided with a limiting groove (not shown), and the first rear end 2452 is provided with a snap-fit ​​protrusion 2453. The snap-fit ​​protrusion 2453 is located in the limiting groove and can move along the limiting groove to increase the stability between the rotating head 245 and the housing 29.

[0090] The rotating head 245 forms a receiving space 2454, and the outer casing 29 forms a storage space (not shown). Along the forward direction of the firing lever 21, the storage space is located behind and communicates with the receiving space 2454. At least a portion of the second gear 244 is located within the receiving space 2454 and connected to the rotating head 245. The second gear 244 drives the rotating head 245 to rotate. The sleeve 246 is fixed to the first front end 2451 of the rotating head 245 and rotates with the rotating head 245. The sleeve 246 is connected to the cartridge assembly 1 to drive the cartridge assembly 1 to rotate circumferentially. The firing lever 21 and a portion of the third lever 255 are located within the sleeve 246.

[0091] In one embodiment, the outer casing 29 includes a first half-shell 2903 and a second half-shell 2904. The first half-shell 2903 and the second half-shell 2904 are fixed, for example, by means of clips or screws.

[0092] In one embodiment, the second gear 244 is provided with an anti-rotation groove 2442, and the rotating head 245 includes an anti-rotation boss 2455. The anti-rotation boss 2455 is located within the anti-rotation groove 2442, enabling the second gear 244 to drive the rotating head 245 to rotate. One or more anti-rotation grooves 2442 may be provided, and the plurality of anti-rotation grooves 2442 are arranged along the circumferential direction of the second gear 244. Correspondingly, one or more anti-rotation bosses 2455 may be provided, and the plurality of anti-rotation bosses 2455 are arranged along the circumferential direction of the rotating head 245. In one embodiment, the anti-rotation grooves 2442 are provided as a pair and are respectively located on opposite sides of the second gear 244. Correspondingly, the anti-rotation bosses 2455 are provided as a pair and are respectively located on opposite sides of the rotating head 245.

[0093] In one embodiment, the anti-rotation boss 2455 is provided with a third plane 2456, and the second gear 244 is provided with a fourth plane 2443. Along the radial direction of the second gear 244, the third plane 2456 contacts the fourth plane 2443.

[0094] Combined Figure 1 , in one embodiment, the rotating head 245 includes a first half 2457 and a second half 2458. The first half 2457 and the second half 2458 enclose the receiving space 2454. In one embodiment, the first half 2457 and the second half 2458 are fixed by screws. In one embodiment, the screws are fixed to the anti-rotation boss 2455. The first half 2457 and the second half 2458 may also be fixed by snap-fitting.

[0095] When the rotating shaft 241 rotates, it drives the first gear 242 to rotate. The first gear 242 drives the second gear 244 to rotate. The second gear 244 drives the rotating head 245 to rotate. The rotating head 245 drives the cartridge assembly 1 to rotate, so as to achieve the circumferential rotation of the cartridge assembly 1 around its central axis. Controlling the circumferential rotation of the cartridge assembly 1 in an electric manner is not only convenient to operate but also improves the operation accuracy and efficiency of the surgery.

[0096] When the cartridge assembly 1 rotates, the sleeve 246 and the rotating head 245 rotate; the firing rod 21 rotates relative to the slider 222; the third rod 255 and the second rod 254 rotate relative to the first rod 253.

[0097] Refer Figures 19 to 20, the body 2 includes a rotary control button 2591, which controls the circumferential rotation of the staple cartridge assembly 1 by controlling a rotary switch 2711. The rotary control button 2591 is fixed to the outer shell 29 by a buckle and can slide relative to the outer shell 29. When the rotary control button 2591 slides to one side, it controls the staple cartridge assembly 1 to rotate circumferentially clockwise, and when it slides to the opposite side, it controls the staple cartridge assembly 1 to rotate circumferentially counterclockwise. The rotary switch 2711 can be a self-resetting slide switch. The circumferential rotation of the staple cartridge assembly 1 is electrically controlled, which improves the precision and efficiency of surgical operations.

[0098] Refer Figure 19 to Figures 21 to 23 , a handle 290 is provided on the outer shell 29. In one embodiment, the power supply assembly 4 is detachably connected to the handle 290 to facilitate replacement of the power supply assembly 4; at the same time, when the power of the stapler 200 fails, the power supply assembly 4 can be removed to cut off the power, thereby increasing safety. The power supply assembly 4 can also be fixed to the handle 290 and is not detachable.

[0099] In one embodiment, the power supply assembly 4 is fastened to the handle 290 to facilitate assembly and disassembly of the power supply assembly 4. The power supply assembly 4 includes a first buckle 45, and the handle 290 includes a second buckle 2902. The first buckle 45 and the second buckle 2902 are fastened to fix the power supply assembly 4. The power supply assembly 4 is convenient for disassembly and assembly, meets the requirement of stable structural cooperation after multiple uses, and ensures the reliability of electrical connection when the power supply assembly 4 is reused.

[0100] In one embodiment, both the first buckle 45 and the second buckle 2902 are provided as a pair. A pair of first buckles 45 are respectively located on opposite sides of the power supply assembly 4, and a pair of second buckles 2902 are located in the receiving cavity 2901 and are oppositely arranged.

[0101] In one embodiment, the handle 290 is provided with a receiving cavity 2901. The power supply assembly 4 includes a power supply main body 46 and an end portion 47 located at one end of the power supply main body 46. The power supply main body 46 is located in the receiving cavity 2901, and the end portion 47 is located outside the receiving cavity 2901. In one embodiment, the power supply assembly 4 includes a first pressing portion 48 provided on the end portion 47 and a first elastic member 49 abutted against the first pressing portion 48. The first buckle 45 is fixed to the first pressing portion 48. The first pressing portion 48 is exposed. When the first pressing portion 48 is pressed, the first pressing portion 48 drives the first buckle 45 to move so as to disengage from the fastening with the second buckle 2902, and the power supply assembly 4 can be removed. When the first pressing portion 48 is pressed, it squeezes the first elastic member 49. After the first pressing portion 48 is released, the elastic force of the first elastic member 49 drives the first buckle 45 to reset.

[0102] When assembling the power supply assembly 4, first press the first pressing part 48 so that the first buckle 45 can enter the storage cavity 2901. After the first buckle 45 enters the storage cavity 2901, release the first pressing part 48 and the first buckle 45 moves to engage with the second buckle 2902.

[0103] In one embodiment, the first latch 45, the second latch 2902, the first pressing part 48, and the first elastic member 49 are provided as at least a pair to increase the stability of the power assembly 4 and ensure the stability of the electrical connection. In one embodiment, the first pressing part 48 is provided as a pair, and a pair of first latches 45 are respectively fixed to the first pressing part 48. The power assembly 4 is assembled or disassembled by pressing the pair of first pressing parts 48 simultaneously.

[0104] The main body 2 includes a second sub-circuit board 272 located at the top of the storage cavity 2901. The top of the power supply body 46 is provided with a contact portion 41. When the power supply assembly 4 is inserted into the storage cavity 2901, the contact portion 41 is electrically connected to the second sub-circuit board 272 to supply power to the anastomosis device 200.

[0105] In one embodiment, the power supply body 46 has a charging port 42 on its top for convenient charging of the power assembly 4. In another embodiment, the power supply body 46 has a power display 43 on its side for viewing the remaining power of the power assembly 4. In yet another embodiment, the power supply body 46 has an operation unit 44 on its side; operating the operation unit 44 displays the power level of the power assembly 43. For example, pressing the operation unit 44 causes the indicator light on the power display 43 to illuminate for 3 seconds and then turn off.

[0106] Figures 24 to 30 and Figure 32 In one embodiment, the power assembly 3 is located at the tail end 292. The power assembly 3 includes a housing 30 and a motor 31, a rotary motor 32 and a oscillating motor 33 located within the space enclosed by the housing 30.

[0107] Motor 31 drives the firing assembly 101, which in turn fires and retracts the cutting blade 11. Motor 31 drives the rotating shaft 221 to rotate, thereby opening or closing the jaws 12 and firing or retracting the cutting blade 11. Rotary motor 32 drives the rotating assembly 102 to rotate the staple cartridge assembly 1 circumferentially. Rotary motor 32 drives the rotating shaft 241 and the first gear 242 to rotate, thereby achieving circumferential rotation of the staple cartridge assembly 1. Swinging motor 33 drives the swinging assembly 103 to swing the jaws 12. Swinging motor 33 drives the swinging shaft 251 to rotate, thereby achieving left and right swinging of the jaws 12. Motors 31, 32, and 33 are driven independently, eliminating the need for a complex power switching structure, making the stapler 200 compact and smaller in size.

[0108] The power unit 3 may also consist of only one motor, which can be switched between rotating the drive shaft 221, rotating the rotary shaft 241, and rotating the oscillating head shaft 251 by switching the switching mechanism. The switching structure includes, but is not limited to, a gear set.

[0109] In one embodiment, the power assembly 3 is detachably connected to the housing 29, which not only facilitates the replacement of the power assembly 3 and reduces costs, but also allows the power assembly 3 to be removed in case of power failure, enabling manual operation to open the jaws 12 or retract the cutting blade 11, thus increasing safety. Alternatively, the power assembly 3 can be fixed to the housing 29 and not detachable.

[0110] In one embodiment, the fuselage 2 includes a pressing member 284 and a second elastic member 285 disposed on the fixing block 28. The pressing member 284 is provided with a fifth abutting portion 2841, and the housing 30 is provided with a sixth abutting portion 301. The fifth abutting portion 2841 and the sixth abutting portion 301 abut against each other to fix the power assembly 3 to the fuselage 2.

[0111] When the pressing member 284 is pressed, the fifth abutment 2841 moves inward toward the fixing block 28 to disengage from the sixth abutment 301, allowing the power assembly 3 to be removed. When the pressing member 284 is pressed, the second elastic member 285 is compressed. When the pressing member 284 is released, the elastic force of the second elastic member 285 pushes against the pressing member 284, causing it to return to its original position.

[0112] In one embodiment, the pressing members 284 are provided as a pair. The pair of pressing members 284 are respectively located on opposite sides of the fixing block 28, and correspondingly, a sixth abutment 301 is provided on opposite sides of the housing 30.

[0113] The pressing member 284 includes a guide rib 2843, and the fixing block 28 is provided with a guide groove 2844. When the pressing member 284 is pressed, the guide rib 2843 moves along the guide groove 2844 to ensure the smooth movement of the pressing member 284. The pressing member 284 includes a sleeve portion 2842, and the guide rib 2843 is connected to the sleeve portion 2842. The fixing block 28 is provided with a receiving groove 2845. The guide groove 2844 communicates with the receiving groove 2845. The sleeve portion 2842 is located in the receiving groove 2845 and can move along the receiving groove 2845. The second elastic member 285 is located in the sleeve portion 2842. The fifth abutment portion 2841 is provided in the sleeve portion 2842. The fifth abutment 2841 is provided as a pair and is located at opposite ends of the sleeve portion 2842. Correspondingly, the sixth abutment 301 is provided as a pair and is located on opposite sides of the notch portion 303.

[0114] In some embodiments, the fixing block 28 includes a cylinder 2846 located in the receiving groove 2845. The sleeve portion 2842 surrounds the periphery of the cylinder 2846, and the second elastic member 285 is located within the cylinder 2846. The pressing member 284 includes a positioning boss 2847 disposed within the sleeve portion 2842, and one end of the second elastic member 285 is fixed to the positioning boss 2847.

[0115] The housing 30 is provided with an opening portion 302 and a notch portion 303 communicating with the opening portion 302. The pressing member 284 includes a second pressing portion 2840 protruding from the sleeve portion 2842. The width of the second pressing portion 2840 is smaller than the width of the notch portion 303 so as to be able to pass through the notch portion 303.

[0116] When assembling the power component 3, hold the second pressing portion 2840, and the fifth blocking portion 2841 moves into the receiving groove 2845 and does not prevent the advancement of the power component 3. When the sixth blocking portion 301 passes over the fifth blocking portion 2841, release the second pressing portion 2840, and the pressing force of the second elastic member 285 causes the pressing member 284 to pop out. At this time, the sleeve portion 2842 is located within the opening portion 302, and the sixth blocking portion 301 abuts against the fifth blocking portion 2841 to prevent the power component 3 from detaching from the fixing block 28. After the power component 3 is assembled to the fuselage 2, the guiding rib 2843 is located between a pair of sixth blocking portions 301.

[0117] When it is necessary to remove the power component 3, hold the second pressing portion 2840, and the fifth blocking portion 2841 moves into the receiving groove 2845 and does not prevent the retreat of the power component 3, and the power component 3 can be pulled out.

[0118] Combined Figure 19 and Figure 24 , in one embodiment, the tail end 292 of the outer shell 29 is provided with a receiving cavity 295. The power component 3 includes a plugging portion 34 located within the receiving cavity 295 and an exposed portion 35 located outside the receiving cavity 295. The sixth blocking portion 301 is provided on the plugging portion 34. The second pressing portion 2840 is exposed outside the outer shell 29 to facilitate pressing the second pressing portion 2840.

[0119] Refer Figures 10 to 11 , Figure 18 and Figures 26 to 28 , in one embodiment, the firing assembly 101 includes a bushing 51 connected to the rotating shaft 221. The motor shaft 311 of the motor 31 is plugged and fixed to the bushing 51. The bushing 51 is located within the first through hole 281 and is provided with a first plugging hole 511 and a second plugging hole 512. The motor shaft 311 of the motor 31 is assembled into the first plugging hole 511 to drive the bushing 51 to rotate. The first assembling portion 2215 is assembled into the second plugging hole 512, and the bushing 51 drives the rotating shaft 221 to rotate.

[0120] In one embodiment, the bushing 51 is provided with a first inclined surface 510, and the motor shaft 311 is provided with a second inclined surface 3110. The second inclined surface 3110 cooperates with the first inclined surface 510, making it easier for the motor shaft 311 to be docked with the bushing 51.

[0121] In one embodiment, the first insertion hole 511 and the end of the motor shaft 311 are shaped irregularly. The body 2 includes a third elastic member 52 located within the first through hole 281. When the end of the motor shaft 311 is not aligned with the first insertion hole 511, it cannot be inserted into the first insertion hole 511. The bushing 51 is subjected to the abutting force of the rotating motor shaft 321 and moves along the first through hole 281, squeezing the third elastic member 52. When the end of the motor shaft 311 rotates to be aligned with the first insertion hole 511, the abutting force of the third elastic member 52 causes the bushing 51 to move in the direction closer to the motor shaft 311, so that the end of the motor shaft 311 is inserted into the first insertion hole 511.

[0122] In one embodiment, the power component 3 includes a control board 37 located within the housing 30. The control board 37 is provided with an automatic alignment program to control the motor shaft 311 to rotate forward and backward within a certain angular range. When it rotates to be aligned with the first insertion hole 511, the third elastic member 52 bounces the bushing 51, and the end of the motor shaft 311 is inserted into the first insertion hole 511, and the docking is successful. The motor 31 can achieve torque output to ensure the stability of power output.

[0123] See Figures 10 to 11 , Figure 18 and Figure 29 , in one embodiment, the rotating component 102 includes a rotating bushing 53 connected to the rotating shaft 241. The rotating motor shaft 321 of the rotating motor 32 is fixedly inserted into the rotating bushing 53. The rotating bushing 53 is located within the through hole 282 and is provided with an insertion hole 531 and a fourth insertion hole 532. The rotating motor shaft 321 of the rotating motor 32 is assembled into the insertion hole 531 to drive the rotating bushing 53 to rotate. The second assembly portion 2411 of the rotating shaft 241 is assembled into the fourth insertion hole 532, and the rotating bushing 53 drives the rotating shaft 241 to rotate.

[0124] In one embodiment, the rotating bushing 53 is provided with a third inclined surface 530, and the rotating motor shaft 321 is provided with a fourth inclined surface 3210. The fourth inclined surface 3210 cooperates with the third inclined surface 530, making it easier for the rotating motor shaft 321 to be docked with the rotating bushing 53.

[0125] In one embodiment, the insertion hole 531 and the end of the rotating motor shaft 321 are of special shapes. The body 2 includes an elastic member 54 located within the through hole 282. When the end of the rotating motor shaft 321 is not aligned with the insertion hole 531, it cannot be inserted into the insertion hole 531. The rotating shaft sleeve 53 moves along the through hole 282 under the abutting force of the rotating motor shaft 321 and compresses the elastic member 54. When the end of the rotating motor shaft 321 rotates to be aligned with the insertion hole 531, the abutting force of the elastic member 54 causes the rotating shaft sleeve 53 to move towards the direction close to the rotating motor shaft 321, so that the end of the rotating motor shaft 321 is inserted into the insertion hole 531.

[0126] In one embodiment, the control board 37 is provided with an automatic alignment program to control the rotating motor shaft 321 to rotate forward and backward within a certain angle range. When it rotates to be aligned with the insertion hole 531, the elastic member 54 bounces up the rotating shaft sleeve 53, and the end of the rotating motor shaft 321 is inserted into the insertion hole 531, and the docking is successful. The rotating motor 32 can achieve torque output to ensure the stability of power output.

[0127] See Figures 10 to 11 , Figure 18 and Figure 30 , in one embodiment, the swing head assembly 103 includes a swing head shaft sleeve 55 connected to the swing head rotating shaft 251. The swing head motor shaft 331 of the swing head motor 33 is inserted and fixed to the swing head shaft sleeve 55. The swing head shaft sleeve 55 is located within the third through hole 283 and is provided with a fifth insertion hole 551 and a sixth insertion hole 552. The swing head motor shaft 331 of the swing head motor 33 is assembled into the fifth insertion hole 551 to drive the swing head shaft sleeve 55 to rotate. The third assembly portion 2511 of the swing head rotating shaft 251 is assembled into the sixth insertion hole 552, and the swing head shaft sleeve 55 drives the swing head rotating shaft 251 to rotate.

[0128] In one embodiment, the swing head shaft sleeve 55 is provided with a fifth inclined surface 550, and the swing head motor shaft 331 is provided with a sixth inclined surface 3310. The fifth inclined surface 550 and the sixth inclined surface 3310 cooperate, making it easier for the swing head motor shaft 331 to be docked with the swing head shaft sleeve 55.

[0129] In one embodiment, the fifth insertion hole 551 and the end of the swing head motor shaft 331 are of special shapes. The body 2 includes a fifth elastic member 56 located within the third through hole 283. When the end of the swing head motor shaft 331 is not aligned with the fifth insertion hole 551, it cannot be inserted into the fifth insertion hole 551. The swing head shaft sleeve 55 moves along the third through hole 283 under the abutting force of the swing head motor shaft 331 and compresses the fifth elastic member 56. When the end of the swing head motor shaft 331 rotates to be aligned with the fifth insertion hole 551, the abutting force of the fifth elastic member 56 causes the swing head shaft sleeve 55 to move towards the direction close to the swing head motor shaft 331, so that the end of the swing head motor shaft 331 is inserted into the fifth insertion hole 551.

[0130] In one embodiment, the control board 37 is provided with an automatic alignment program to control the swing head motor shaft 331 to rotate forward and backward within a certain angle range. When it rotates to align with the fifth insertion hole 551, the fifth elastic member 56 pops up the swing head bushing 55, and the end of the swing head motor shaft 331 is inserted into the fifth insertion hole 551, and the docking is successful. The swing head motor 33 can achieve torque output to ensure the stability of power output.

[0131] When the power component 3 is removed, the bushings 51, the rotating bushings 53, and the swing head bushings 55 are exposed. Tools can be inserted into the bushing 51 to control the opening of the jaws 12 or the retraction of the cutting blade 11; tools can be inserted into the rotating bushing 53 to control the rotation of the staple cartridge assembly 1; tools can be inserted into the swing head bushing 55 to control the swing of the jaws 12.

[0132] Refer Figures 31 to 33 , the power component 3 further includes a display screen 36 located on the exposed part 35. The stapler body 100 includes a rubber sleeve 61. The rubber sleeve 61 covers the exposed part 35 to ensure the aseptic state of the product. The exposed part 35 of the power component 3 is covered with a sterilized disposable rubber sleeve 61. After use, the rubber sleeve 61 is removed, and a new rubber sleeve 61 is replaced for the next use, reducing the sterilization process in the hospital when using the reusable stapler 200, improving the surgical efficiency, and at the same time reducing the sterilization cost of the hospital.

[0133] In one embodiment, the thickness of the rubber sleeve 61 is less than 1 mm. It can be made of materials such as latex or silicone. In one embodiment, the rubber sleeve 61 is made of a transparent material to ensure that the display screen 36 can be clearly observed through the rubber sleeve 61. In one embodiment, a thickened first flanging 611 is provided at the opening of the rubber sleeve 61. The circumference of the first flanging 611 is less than the circumference of the corresponding position of the exposed part 35, and the length of the rubber sleeve 61 is less than the length of the exposed part 35, so as to ensure the fitting and flatness after the rubber sleeve 61 is sleeved.

[0134] Refer Figure 1 And Figure 34 , the stapler body 100 includes a power supply rubber sleeve 62. The end 47 of the power supply component 4 is exposed. The power supply rubber sleeve 62 covers the end 47 to ensure the aseptic state of the product. The exposed end 47 of the power supply component 4 is covered with a sterilized disposable power supply rubber sleeve 62. After use, the power supply rubber sleeve 62 is removed, and a new power supply rubber sleeve 62 is replaced for the next use, reducing the sterilization process in the hospital when using the reusable stapler 200, improving the surgical efficiency, and at the same time reducing the sterilization cost of the hospital.

[0135] In one embodiment, the thickness of the power supply sleeve 62 is less than 1 mm. It can be made of materials such as latex or silicone. In one embodiment, a thickened second flange (not shown) is provided at the opening of the power supply sleeve 62. The circumference of the second flange is less than the circumference at the corresponding position of the end 47, and the length of the power supply sleeve 62 is less than the length of the end 47, thereby ensuring a close fit and flatness after the power supply sleeve 62 is installed.

[0136] The main body 2 includes a safety control key 2592 to operate the safety switch 2712. When using the stapler 200, first install the power assembly 3, power supply assembly 4, and staple cartridge assembly 1. Then, control the rotation of the staple cartridge assembly 1 by operating the rotation control key 2591 or control the tilting of the jaws 12 by operating the tilting control key 258. To begin use, press the firing control key 232. The firing lever 21 moves the cutting blade 11 forward, the cutting blade 11 presses against the jaws 12, and the jaws 12 close. After the jaws 12 close, operate the safety control key 2592 to prevent the firing lever 21 from moving; press the firing control key 232 again to fire the cutting blade 11. After the cutting blade 11 has fired, release the firing control key 232, the cutting blade 11 retracts, and the jaws 12 open. If the firing control key 232 is released during firing, the retraction control key 233 must be operated for the cutting blade 11 to retract.

[0137] In one embodiment, the safety control key 2592 and the rotation control key 2591 are both set as a pair, located on opposite sides of the body 2, which is more user-friendly.

[0138] In one embodiment, the head-tilt control button 258, the firing control button 232, and the retraction control button 233 are located at the upper end of the handle 290 and facing the front of the stapler body 100, so as to facilitate one-handed operation, improve the efficiency of doctors' operation, and effectively avoid medical accidents caused by misoperation. In one embodiment, the retraction control button 233, the head-tilt control button 258, and the firing control button 232 are arranged sequentially from top to bottom along the height direction of the handle 290.

[0139] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A stapler body connected to a stapler cartridge assembly, the stapler cartridge assembly including jaws and a cutting blade, characterized in that, The stapler body includes: The firing assembly drives the cutting blade to fire and retract, and also drives the jaws to open and close. The motor drives the firing assembly to fire and retract the cutting blade; A rotating component that rotates to cause the staple cartridge assembly to rotate circumferentially about its central axis; A rotary motor drives the rotary assembly to rotate the staple cartridge assembly circumferentially. The oscillating head assembly drives the jaw oscillating head; A swaying head motor drives the swaying head assembly to cause the jaws to oscillate.

2. The anastomosis device body according to claim 1, characterized in that, The firing assembly includes a firing rod, a rotating shaft, and a slider. The motor drives the rotating shaft to rotate. The slider is threadedly connected to the rotating shaft to move back and forth relative to the rotating shaft. The firing rod is connected to the slider. The slider drives the firing rod to move back and forth. The firing rod drives the cutting blade to move forward or backward. When the cutting blade moves forward, it causes the jaws to close. When the cutting blade moves backward, the jaws open. When the staple cartridge assembly rotates circumferentially, the firing rod rotates relative to the slider.

3. The anastomosis device body according to claim 2, characterized in that, The rotating assembly includes a first gear, a second gear, and a rotating head. The first gear includes a first tooth portion, and the second gear includes a second tooth portion that meshes with the first tooth portion. The rotating motor drives the first gear to rotate, and the rotation of the first gear drives the second gear to rotate. The second gear is connected to the rotating head to drive the rotating head to rotate. The rotating head is connected to the staple cartridge assembly to drive the staple cartridge assembly to rotate circumferentially. The second gear has a through cavity for the firing rod to pass through.

4. The anastomosis device body according to claim 2, characterized in that, The oscillating head assembly includes an oscillating head shaft, a second slider rotatably connected to the oscillating head shaft, a first rod fixed to the second slider, a second rod connected to the first rod, and a third rod connected to the second rod. The third rod is connected to the jaws. The oscillating head motor drives the shaft to rotate. The second slider is threadedly connected to the oscillating head shaft to move back and forth relative to the oscillating head shaft. The second slider drives the first rod, the second rod, and the third rod to move forward or backward to drive the jaws to oscillate. When the staple cartridge assembly rotates circumferentially, the second rod rotates relative to the first rod.

5. The anastomosis device body according to claim 4, characterized in that, The second rod and the third rod are integrally formed.

6. The anastomosis device body according to claim 4, characterized in that, The first rod includes a first base and a first positioning part and a second positioning part located at opposite ends of the first base. The first positioning part is fixed to the second slider. The second positioning part is provided with an assembly hole. The second rod includes a third positioning part. The third positioning part includes a supporting part and a protrusion extending from the supporting part. The protrusion is provided with a slot. The swing head assembly includes a retaining spring assembled into the slot. The retaining spring and the supporting part are located on opposite sides of the second positioning part. The third positioning part is provided with a through hole for the firing rod to pass through.

7. The anastomosis device body according to any one of claims 2 to 6, characterized in that, The stapler body includes a housing, the housing includes a handle, the stapler body includes a power supply assembly, at least a portion of the power supply assembly is located inside the handle, and the motor, the rotary motor and the oscillating motor are located at the tail end of the housing away from the staple cartridge assembly.

8. The anastomosis device body according to claim 7, characterized in that, The stapler body includes a power assembly detachably connected to the outer shell, the power assembly including the motor, the rotary motor and the oscillating head motor.

9. The anastomosis device body according to claim 8, characterized in that, The firing assembly includes a bushing connected to the rotating shaft, and the motor shaft of the motor is inserted and fixed to the bushing. The rotating assembly includes a rotating bushing connected to the rotating shaft of the rotating motor, and the rotating motor shaft of the rotating motor is inserted and fixed to the rotating bushing. The oscillating head assembly includes an oscillating head bushing connected to the oscillating head shaft, and the oscillating head motor shaft of the oscillating head motor is inserted and fixed to the oscillating head bushing. After the power assembly is removed, the bushing, the rotating bushing, and the oscillating head bushing are exposed.

10. A stapler, characterized in that, Includes the staple cartridge assembly and the stapler body as described in any one of claims 1 to 9.

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