Flexible tubular anastomat

Abstract

A tube body steering adjusting knob is arranged on the grip and is used for driving the nail cabin connecting seat to steer; a flexible pipe body is arranged at one end of the grip and comprises a steering pull rope, a snake bone structure and a transmission assembly, the first end of the steering pull rope is connected with the nail cabin connecting seat, the second end of the steering pull rope is connected with a pipe body steering adjusting knob, the steering pull rope is used for changing the direction of the snake bone structure, and the transmission assembly is used for driving the snake bone structure; a nail cabin connecting seat is arranged at one end, far away from the pipe body steering adjusting knob, of the flexible pipe body and is used for connecting the flexible pipe body and the nail cabin assembly; a nail abutting seat is arranged at the end, away from the nail cabin connecting seat, of the nail cabin assembly. The nail cabin assembly comprises a nail cabin and anastomosis nails arranged in the nail cabin. The driving knob is used for driving the locking mechanism, and the locking mechanism is used for locking the nail cabin assembly and the nail abutting seat; the transmission mechanism is used for driving the nail cabin excitation rod, and the nail cabin excitation rod is used for pushing the anastomosis nails in the nail cabin to the nail abutting seat. According to the flexible tubular anastomat, the nail cabin and the grip of the flexible tubular anastomat are flexibly connected, and the length of the nail cabin and the grip is not limited.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of anastomat, more particularly to a flexible tubular anastomat. BACKGROUND

[0002] The surgical tubular anastomat is a kind of medical device widely used in digestive tract reconstruction surgery, which can realize end-to-end anastomosis, end-to-side anastomosis and side-to-side anastomosis of digestive tract tissues such as esophagus, stomach and intestine. The tubular anastomat greatly reduces the difficulty of anastomosis for doctors during digestive tract reconstruction, and significantly improves the anastomosis quality, especially for some difficult manual anastomosis positions, such as esophagus-small intestine anastomosis in total gastrectomy and rectum-colon anastomosis in low rectal cancer surgery, etc., the advantages of the tubular anastomat are more obvious.

[0003] Generally, the surgical tubular anastomat is composed of three parts: a stapling end, a rod body and an operating handle. Although the rod body is mostly designed as a rod structure with a certain angle, the above three parts are still rigidly connected. Therefore, the tubular anastomat with rigid structure cannot be used for anastomosis of some special parts of the stomach and intestine, such as end-to-end anastomosis of high colon through anus, end-to-side anastomosis of esophagus-jejunum under complete laparoscopy and end-to-side anastomosis of residual stomach-duodenum, etc. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above problems, the present application is proposed. According to one aspect of the present application, a flexible tubular anastomat is provided, characterized in that it comprises a handle, a tube body turning adjusting knob, a flexible tube body, a cartridge connecting seat, a cartridge assembly, a cartridge abutting seat, a driving knob, a cartridge activating rod, a locking mechanism and a transmission mechanism:

[0005] The handle is provided with a tube body turning adjusting knob for driving the cartridge connecting seat to turn;

[0006] One end of the handle is provided with a flexible tube body, which comprises a turning pull rope, a snake bone structure and a transmission assembly. The first end of the turning pull rope is connected with the cartridge connecting seat, and the second end of the turning pull rope is connected with the tube body turning adjusting knob. The turning pull rope is used to change the direction of the snake bone structure, and the transmission assembly is used to drive the snake bone structure;

[0007] One end of the flexible tube body away from the tube body turning adjusting knob is provided with the cartridge connecting seat for connecting the flexible tube body and the cartridge assembly;

[0008] The cartridge assembly is provided with the cartridge abutting seat at one end away from the cartridge connecting seat. The cartridge assembly comprises a cartridge and anastomosis nails arranged in the cartridge;

[0009] The driving knob is used to drive the locking mechanism, and the locking mechanism is used to lock the cartridge assembly and the cartridge abutting seat;

[0010] The transmission mechanism is used to drive a staple cartridge firing rod, and the staple cartridge firing rod is used to push the anastomosis staples in the staple cartridge to the anvil seat.

[0011] In an embodiment of the present application, the transmission assembly comprises a tail end rotary connecting piece, a universal transmission shaft and a head end rotary connecting piece:

[0012] The tail end rotary connecting piece is connected with the universal transmission shaft;

[0013] The head end rotary connecting piece is connected with the staple cartridge connecting seat at a first end, and connected with the universal transmission shaft at a second end.

[0014] In an embodiment of the present application, the anastomat comprises a speed reduction and torque increasing structure:

[0015] The speed reduction and torque increasing structure is arranged between the head end rotary connecting piece and the staple cartridge connecting seat, and is used to increase the torque;

[0016] The speed reduction and torque increasing structure comprises a planetary gear set and a worm gear mechanism.

[0017] In an embodiment of the present application, the locking mechanism comprises a staple seat butt joint head driving screw connecting piece, a staple seat butt joint head driving screw, a staple seat butt joint head and an anvil seat butt joint locking port:

[0018] The staple seat butt joint head driving screw connecting piece is connected with the staple seat butt joint head driving screw at a first end, and connected with the head end rotary connecting piece at a second end;

[0019] The staple seat butt joint head driving screw is connected with the staple seat butt joint head at a first end, and connected with the staple seat butt joint head driving screw connecting piece at a second end;

[0020] The staple seat butt joint head is provided with an anvil seat butt joint locking port at a first end, and connected with the staple seat butt joint head driving screw at a second end.

[0021] In an embodiment of the present application, the snake bone structure further comprises a pipe body cladding layer and a pipe body snake bone inner layer:

[0022] The pipe body cladding layer is arranged on the surface of the flexible pipe body;

[0023] The pipe body snake bone inner layer is the same as the shaft center of the universal transmission shaft.

[0024] In an embodiment of the present application, the transmission mechanism is a gear shifting transmission mechanism:

[0025] The shift transmission mechanism comprises a transmission shaft shift knob, a shift pull shaft, a nail cabin excitation rod drive screw connecting piece, a nail cabin excitation rod drive screw, a nail seat locking rotating wheel and a nail cabin excitation rotating wheel;

[0026] The transmission shaft shift knob is used to drive the shift pull shaft.

[0027] The shift pull shaft is used to realize the shift of the drive knob.

[0028] The nail cabin excitation rod drive screw connecting piece is used to drive the nail cabin excitation rod drive screw.

[0029] The nail cabin excitation rod drive screw is used to drive the nail cabin excitation rod.

[0030] The first end of the nail seat locking rotating wheel is connected with the transmission assembly, and the second end of the nail seat locking rotating wheel is connected with the shift pull shaft.

[0031] The first end of the nail cabin excitation rotating wheel is connected with the transmission assembly, and the second end of the nail cabin excitation rotating wheel is connected with the shift pull shaft.

[0032] In an embodiment of the present application, the shift pull shaft is used to realize the shift of the drive knob, comprising:

[0033] The transmission shaft shift knob is rotated to a first angle, the shift pull shaft connects the nail seat butt joint drive screw connecting piece with the nail seat butt joint drive screw, the drive knob is used to drive the nail seat locking rotating wheel, and the nail seat locking rotating wheel drives the locking mechanism through the transmission assembly.

[0034] The transmission shaft shift knob is rotated to a second angle, the shift pull shaft connects the nail cabin excitation rod drive screw connecting piece with the nail cabin excitation rod drive screw, the drive knob is used to drive the nail cabin excitation rotating wheel, and the nail cabin excitation rotating wheel drives the nail cabin excitation rod through the transmission assembly.

[0035] In an embodiment of the present application, the shift transmission mechanism further comprises a first clamping hole and a second clamping hole:

[0036] The first clamping hole is used to rotate the transmission shaft shift knob to a first angle.

[0037] The second clamping hole is used to rotate the transmission shaft shift knob to a second angle.

[0038] In an embodiment of the present application, the transmission mechanism is a hydraulic transmission mechanism:

[0039] The hydraulic transmission mechanism comprises a transmission medium drive handle, a transmission connecting rod, a piston drive connecting rod, a piston, a transmission medium storage pipe and a one-way valve.

[0040] The transmission medium driving handle is used to drive the transmission connecting rod;

[0041] The transmission connecting rod is used to drive the piston driving connecting rod;

[0042] The piston driving connecting rod is used to push the piston;

[0043] The piston is provided with a transmission medium storage tube at one end away from the piston driving connecting rod;

[0044] The transmission medium storage tube is arranged at one end of the flexible tube body away from the nail cabin connecting seat, and the transmission medium storage tube stores transmission medium;

[0045] The transmission medium enters the flexible tube body through the one-way valve, and is used to drive the nail cabin trigger rod.

[0046] In an embodiment of the present application, the hydraulic transmission mechanism further comprises a sealing member and a sealing bearing:

[0047] The sealing member is arranged at one side of the flexible tube body away from the one-way valve, and is used to seal the connection between the steering pull rope and the flexible tube body away from the nail cabin connecting seat;

[0048] The sealing bearing is arranged around the nail seat butt joint driving screw, and is used to seal the nail seat butt joint.

[0049] The flexible tubular anastomat of the present application is provided with a tube body steering adjustment knob, and turning the tube body steering adjustment knob controls the steering of the nail cabin connecting seat at the other end of the steering pull rope, and then controls the direction of the flexible tube body, so that the nail cabin can better advance to the required position, and a transmission assembly is arranged to drive the flexible tube body, so that the length between the handle and the nail cabin can be changed, realizing the soft connection and length unlimited connection of the nail cabin and the handle of the flexible tubular anastomat, overcoming the angle and distance limitations of the nail cabin to the handle, and realizing end-to-end anastomosis, end-to-side anastomosis and side-to-side anastomosis under unlimited depth and angle. BRIEF DESCRIPTION OF DRAWINGS

[0050] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description of embodiments of the present application taken in conjunction with the accompanying drawings. The accompanying drawings are intended to provide a further understanding of embodiments of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the present application, and do not constitute a limitation of the present application. In the drawings, the same reference numerals refer to the same components or steps throughout the drawings.

[0051] Figure 1 A schematic structural diagram of a flexible tubular anastomat according to an embodiment of the present application is shown;

[0052] Figure 2Fig. 1 shows a schematic structural cross-sectional view of a flexible tubular anastomat according to an embodiment of the present application;

[0053] Figure 3 Fig. 2 shows a schematic structural cross-sectional view of a flexible tubular anastomat according to an embodiment of the present application;

[0054] Figure 4 Fig. 3 shows a schematic structural cross-sectional view of a flexible tubular anastomat according to an embodiment of the present application;

[0055] Figure 5 Fig. 4 shows a schematic structural cross-sectional view of a flexible tubular anastomat according to an embodiment of the present application;

[0056] Figure 6 Fig. 5 shows a schematic structural view of a flexible tubular anastomat according to an embodiment of the present application;

[0057] Figure 7 Fig. 6 shows a schematic structural view of a flexible tubular anastomat according to an embodiment of the present application;

[0058] Figure 8 Fig. 7 shows a schematic structural view of a flexible tubular anastomat according to another embodiment of the present application;

[0059] Figure 9 Fig. 8 shows a schematic structural cross-sectional view of a flexible tubular anastomat according to another embodiment of the present application;

[0060] Figure 10 Fig. 9 shows a schematic structural cross-sectional view of a flexible tubular anastomat according to another embodiment of the present application;

[0061] Figure 11 Fig. 10 shows a schematic structural cross-sectional view of a flexible tubular anastomat according to another embodiment of the present application.

[0062] Reference signs:

[0063] 1 handle; 2 tube body steering adjustment knob; 3 staple cartridge connecting seat; 4 flexible tube body; 41 steering pull rope; 42 snake bone structure; 43 transmission assembly; 421 tube body cladding; 422 tube body snake bone inner layer; 431 tail end rotary connecting piece; 432 universal transmission shaft; 433 head end rotary connecting piece; 5 staple cartridge assembly; 6 anvil seat; 7 driving knob; 8 staple cartridge firing rod;

[0064] 11 anvil seat butt joint driving screw connecting piece; 12 anvil seat butt joint driving screw; 13 anvil seat butt joint; 14 anvil seat butt joint locking port;

[0065] 21 transmission shaft shift knob; 22 shift pull shaft; 23 staple cartridge firing rod driving screw connecting piece; 24 staple cartridge firing rod driving screw; 25 anvil seat locking rotary wheel; 26 staple cartridge firing rotary wheel; 27 rotary wheel; 28 first clamping port; 29 second clamping port;

[0066] 31 drive medium drive handle; 32 drive link; 33 piston drive link; 34 piston; 35 drive medium storage tube; 36 one-way valve; 37 seal; 38 sealed bearing; 39 universal drive shaft drive rod; 40 drive medium movable cavity. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical scheme and advantages of the present application more obvious, the example embodiments according to the present application will be described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments of the present application, and it should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments of the present application described in the present application, all other embodiments obtained by those skilled in the art without creative labor shall fall within the protection scope of the present application.

[0068] Therefore, in view of the existence of the foregoing technical problems, the utility model provides a flexible tubular anastomat, with reference to Figures 1-11 The flexible tubular anastomat for implementing the embodiments of the utility model is described. The flexible tubular anastomat comprises a handle 1, a tube body turning adjusting knob 2, a flexible tube body 4, a nail cabin connecting seat 3, a nail cabin assembly 5, a nail resisting seat 6, a drive knob 7, a nail cabin activating rod 8, a locking mechanism and a transmission mechanism.

[0069] With reference to Figure 1 As shown in the figure, the handle 1 is provided with the tube body turning adjusting knob 2 for driving the nail cabin connecting seat 3 to turn. When the nail cabin needs to turn, the doctor turns the tube body turning adjusting knob 2 to drive the nail cabin connecting seat 3 to change direction, thereby changing the direction of the nail cabin and making the nail cabin advance to the required position.

[0070] The handle 1 is provided at one end with the flexible tube body 4, which comprises a turning pull rope 41, a snake bone structure 42 and a transmission assembly 43. The first end of the turning pull rope 41 is connected with the nail cabin connecting seat 3, and the second end of the turning pull rope 41 is connected with the tube body turning adjusting knob 2. The turning pull rope 41 is used to change the direction of the snake bone structure 42, and the transmission assembly 43 is used to drive the snake bone structure 42. Turning the tube body turning adjusting knob 2 can adjust the length of the turning pull rope 41, thereby changing the direction of the nail cabin connecting seat 3. The nail cabin connecting seat 3 is connected with the flexible tube body 4, thereby driving the snake bone structure 42 to turn. The transmission assembly 43 can transmit power to drive the snake bone structure 42.

[0071] A staple cartridge connector 3 is provided at the end of the flexible tubular body 4, distal from the tubular body steering adjustment knob 2, for connecting the flexible tubular body 4 to a staple cartridge assembly 5. The staple cartridge connector 3 can drive the flexible tubular body 4 and staple cartridge assembly 5 for steering. An anvil 6 is provided at the end of the staple cartridge assembly 5, distal from the staple cartridge connector 3. The staple cartridge assembly 5 includes a staple cartridge and staples disposed therein.

[0072] The drive knob 7 is used to activate the locking mechanism, which is used to lock the staple cartridge assembly 5 and the anvil 6. After the staple cartridge has moved to the desired position, the stapler is pushed further in until the front end of the staple cartridge aligns with and penetrates the staple rods of the anvil 6, and then the drive knob 7 is rotated. Rotating the drive knob 7 activates the transmission assembly 43, which in turn activates the locking mechanism, locking the staple cartridge and anvil 6 together. The transmission mechanism activates the staple cartridge trigger rod 8, which is used to push the staples in the staple cartridge into the anvil 6.

[0073] According to the embodiment of the present invention, the flexible tubular stapler is provided with a tube body steering adjustment knob 2, which is rotated to control the steering of the nail magazine connecting seat 3 at the other end of the steering rope 41, thereby controlling the direction of the flexible tube body 4, so that the nail magazine can be better advanced to the required position, and a transmission assembly 43 is provided to drive the flexible tube body 4, so that the length between the handle 1 and the nail magazine can be changed, thereby realizing a soft connection and an unlimited length connection between the nail magazine and the handle 1 of the flexible tubular stapler, overcoming the angle limitation and distance limitation of the nail magazine on the handle 1, and realizing end-to-end anastomosis, end-to-side anastomosis and side-to-side anastomosis at unlimited depth and angle.

[0074] like Figure 2 As shown, in the embodiment of the present application, the transmission assembly 43 includes a tail end rotating connector 431, a universal transmission shaft 432, and a head end rotating connector 433. The tail end rotating connector 431 is connected to the universal transmission shaft 432. The head end rotating connector 433 has a first end connected to the nail chamber connecting base 3 and a second end connected to the universal transmission shaft 432.

[0075] After rotating the driving knob 7, the tail end rotating connector 431 is driven, and then the universal transmission shaft 432 is driven. The universal transmission shaft 432 in the flexible tube body 4 and the head end rotating connector 433 are transmitted to drive the locking mechanism, and the locking mechanism locks the nail cabin assembly 5 and the nail support 6.

[0076] In the embodiment of the present application, the stapler includes a deceleration and torque-increasing structure: the deceleration and torque-increasing structure is arranged between the head end rotating connector 433 and the staple cartridge connector 3 to increase torque. The deceleration and torque-increasing structure includes a planetary gear set and a worm gear mechanism.

[0077] like Figure 4As shown, in an embodiment of the present application, the locking mechanism includes a nail seat butt joint drive screw connector 11, a nail seat butt joint drive screw 12, a nail seat butt joint 13, and an anvil butt joint locking opening 14. The first end of the nail seat butt joint drive screw connector 11 is connected to the nail seat butt joint drive screw 12, and the second end of the nail seat butt joint drive screw connector 11 is connected to the head end rotation connector 433. The first end of the nail seat butt joint drive screw 12 is connected to the nail seat butt joint 13, and the second end of the nail seat butt joint drive screw 12 is connected to the nail seat butt joint drive screw connector 11. The first end of the nail seat butt joint 13 is provided with an anvil butt joint locking opening 14, and the second end of the nail seat butt joint 13 is connected to the nail seat butt joint drive screw 12.

[0078] After turning the driving knob 7, the tail end rotating connector 431 is driven, and then the universal transmission shaft 432 is driven. The universal transmission shaft 432 in the flexible tube body 4 and the head end rotating connector 433 are transmitted to drive the nail seat docking joint driving screw connector 11 and the nail seat docking joint driving screw 12 to rotate, so that the nail seat docking joint 13 is inserted into the nail seat docking locking port 14, and the nail cabin assembly 5 and the nail seat 6 are locked.

[0079] like Figure 3 As shown, in the embodiment of the present application, the serpentine structure 42 further includes a tube body cladding 421 and a tube body serpentine inner layer 422. The tube body cladding 421 is disposed on the surface of the flexible tube body 4. The tube body serpentine inner layer 422 is coaxial with the universal joint transmission shaft 432. The tube body cladding 421 can wrap around the tube body serpentine inner layer 422.

[0080] like Figure 4 As shown, in an embodiment of the present application, the stapler includes a shift transmission mechanism. The shift transmission mechanism includes a transmission shaft shift knob 21, a shift pull shaft 22, a staple cartridge trigger rod drive screw connector 23, a staple cartridge trigger rod drive screw 24, a staple holder locking rotating wheel 25, and a staple cartridge trigger rotating wheel 26. In one embodiment, the handle 1 is fixedly connected to the flexible tubular body 4, while the flexible tubular body 4 and the staple cartridge are detachable.

[0081] The transmission shaft shift knob 21 is located at the end of the handle 1 away from the flexible tubular body 4. It is used to drive the shift pull shaft 22. The first end of the shift pull shaft 22 is connected to the nail base locking rotating wheel 25 and the nail chamber excitation rotating wheel 26. The second end of the shift pull shaft 22 is connected to the transmission shaft shift knob 21. Rotating the transmission shaft shift knob 21 drives the shift pull shaft 22, which is used to shift the drive knob 7. The drive knob 7 can drive the nail base locking rotating wheel 25 or the nail chamber excitation rotating wheel 26 to rotate, thereby achieving gear shifting.

[0082] like Figure 5As shown, in one embodiment, the shift transmission mechanism further includes a rotating wheel 27, and the driving knob 7 is connected to the rotating wheel 27. Rotating the driving knob 7 can drive the rotating wheel 27, and the rotating wheel 27 can drive the nail holder locking rotating wheel 25 or the nail cartridge excitation rotating wheel 26 to rotate. The nail cartridge excitation rod driving screw connecting member 23 is used to drive the nail cartridge excitation rod driving screw 24.

[0083] The staple cartridge trigger rod driving screw 24 is used to drive the staple cartridge trigger rod 8 , and the staple cartridge trigger rod 8 is used to push the staples in the staple cartridge to the staple anvil 6 .

[0084] The first end of the nail seat locking rotating wheel 25 is connected to the transmission assembly 43, and the second end of the nail seat locking rotating wheel 25 is connected to the shift pull shaft 22. The first end of the nail seat locking rotating wheel 25 is connected to the tail end rotating connector 431 of the transmission assembly 43. When the nail seat locking rotating wheel 25 and the rotating wheel 27 rotate, the tail end rotating connector 431 is driven, and then the universal transmission shaft 432 is driven by the universal transmission shaft 432 in the flexible tube body 4 and the head end rotating connector 433, driving the nail seat butt joint driving screw connector 11 and the nail seat butt joint driving screw 12 to rotate, so that the nail seat butt joint 13 is inserted into the nail seat butt joint locking opening 14, thereby locking the nail chamber assembly 5 and the nail seat 6.

[0085] The first end of the staple cartridge excitation rotating wheel 26 is connected to the transmission assembly 43, and the second end of the staple cartridge excitation rotating wheel 26 is connected to the shift pull shaft 22. The first end of the staple cartridge excitation rotating wheel 26 is connected to the rear end rotating connector 431 of the transmission assembly 43. When the staple cartridge excitation rotating wheel 26 and the rotating wheel 27 rotate, the rear end rotating connector 431 is driven, which in turn drives the universal drive shaft 432. The universal drive shaft 432 within the flexible tube 4 and the front end rotating connector 433 transmit the transmission, driving the staple cartridge excitation rod driving screw connector 23 and the staple cartridge excitation rod driving screw 24 to rotate. This drives the staple cartridge excitation rod 8 to move, ejecting the staples from the staple cartridge. The staple cartridge excitation rod 8 is at a fixed distance from the cutting blade. After the anastomosis operation is completed, the excess portion of the anastomosis site is simultaneously removed. After the anastomosis operation is completed, the stapler is withdrawn, and the anvil 6 and the staple cartridge are withdrawn simultaneously.

[0086] like Figure 2 As shown, in an embodiment of the present application, the shift pull shaft 22 is used to realize the shifting of the driving knob 7, including: the transmission shaft shift knob 21 rotates to a first angle, the shift pull shaft 22 connects the nail seat docking joint driving screw connector 11 with the nail seat docking joint driving screw 12, and the driving knob 7 is used to drive the nail seat locking rotating wheel 25, and the nail seat locking rotating wheel 25 drives the locking mechanism through the transmission assembly 43.

[0087] The driving knob 7 drives the nail base locking rotating wheel 25 through the rotating wheel 27, the rotating wheel 27 drives the tail end rotating connecting piece 431, and then drives the universal transmission shaft 432, the universal transmission shaft 432 in the flexible pipe body 4 transmits with the head end rotating connecting piece 433, drives the nail base butt joint drive screw connecting piece 11 and the nail base butt joint drive screw 12 to rotate, realizes the nail base butt joint 13 to insert the nail base butt joint locking port 14, and locks the nail cabin assembly 5 and the nail base 6.

[0088] The transmission shaft shift knob 21 rotates to the second angle, the shift pull shaft 22 disconnects the nail base butt joint drive screw connecting piece 11 and the nail base butt joint drive screw 12, the shift pull shaft 22 connects the nail cabin excitation rod drive screw connecting piece 23 and the nail cabin excitation rod drive screw 24, and the driving knob 7 is used to drive the nail cabin excitation rotating wheel 26, and the nail cabin excitation rotating wheel 26 drives the nail cabin excitation rod through the transmission assembly 43.

[0089] The driving knob 7 drives the nail cabin excitation rotating wheel 26 through the rotating wheel 27, the rotating wheel 27 drives the tail end rotating connecting piece 431, and then drives the universal transmission shaft 432, the universal transmission shaft 432 in the flexible pipe body 4 transmits with the head end rotating connecting piece 433, drives the nail cabin excitation rod drive screw connecting piece 23 and the nail cabin excitation rod drive screw 24 to rotate, realizes the nail cabin excitation rod 8 to move, pushes out the anastomosis nail in the nail cabin, the nail cabin excitation rod 8 and the cutting blade are fixed distance, and after the anastomosis operation is completed, the excess part of the anastomosis part is cut off. After the anastomosis operation is completed, the anastomat is extracted, and the nail base 6 and the nail cabin are extracted at the same time.

[0090] As shown in Figure 6 and Figure 7 In one embodiment, the shift transmission mechanism further comprises a first clamping hole 28 and a second clamping hole 29: the first clamping hole 28 is used to rotate the transmission shaft shift knob 21 to the first angle; and the second clamping hole 29 is used to rotate the transmission shaft shift knob 21 to the second angle.

[0091] As shown in Figure 8 and Figure 9 In the embodiment of the present application, the anastomat comprises a hydraulic transmission mechanism: the hydraulic transmission mechanism comprises a transmission medium driving handle 31, a transmission connecting rod 32, a piston driving connecting rod 33, a piston 34, a transmission medium storage pipe 35 and a one-way valve 36. In one embodiment, the handle 1 part is detachable with the flexible pipe body 4, and the flexible pipe body 4 is fixedly connected with the nail cabin part. The flexible pipe body 4, the nail cabin connecting seat 3 and the inner cavity of the nail cabin store full liquid transmission medium. The liquid transmission medium can be water or saline.

[0092] The transmission medium drive handle 31 is used to drive the transmission connecting rod 32, which is used to drive the piston drive connecting rod 33. The piston drive connecting rod 33 is used to push the piston 34. The piston 34 is provided with a transmission medium storage tube 35 at one end away from the piston drive connecting rod 33. The transmission medium storage tube 35 is provided at one end of the flexible tube body 4 away from the nail cabin connecting seat 3, and the transmission medium storage tube 35 stores the transmission medium. The transmission medium enters the flexible tube body 4 through the one-way valve 36 and is used to drive the activation mechanism.

[0093] After the nail cabin and the nail abutting seat 6 are locked, the transmission medium drive handle 31 is pushed towards the handle 1, and through the transmission of the transmission connecting rod 32 and the piston drive connecting rod 33, the piston 34 is pushed to move forward, and the stored transmission medium is pushed into the flexible tube body 4 through the one-way valve 36. Under the transmission of the liquid medium, the drive nail cabin activation rod 8 is moved to push out the anastomosis nail in the nail cabin. The drive nail cabin activation rod 8 and the cutting blade are fixed at a distance, and after the anastomosis operation is completed, the excess part of the anastomosis site is cut off. After the anastomosis operation is completed, the anastomat is pulled out, and the nail abutting seat 6 and the nail cabin are pulled out at the same time.

[0094] As shown in Figure 11 In an embodiment of the present application, the hydraulic transmission mechanism further comprises a sealing member 37 and a sealing bearing 38: the sealing member 37 is arranged on the side of the flexible tube body 4 away from the one-way valve 36, and is used to seal the connection between the steering pull rope 41 and the flexible tube body 4 away from the nail cabin connecting seat 3. The sealing bearing 38 is arranged around the nail seat butt joint drive screw 12, and is used to seal the nail seat butt joint 13.

[0095] In an embodiment, the hydraulic transmission mechanism further comprises a universal transmission shaft drive rod 39, the first end of the universal transmission shaft drive rod 39 is connected with the tail end rotating connecting piece 431, and the second end of the universal transmission shaft drive rod 39 is connected with the drive knob 7. The drive knob 7 drives the universal transmission shaft drive rod 39 to move, and then drives the tail end rotating connecting piece 431, the universal transmission shaft 432, the head end rotating connecting piece 433, the nail seat butt joint drive screw connecting piece 11 and the nail seat butt joint drive screw 12 to rotate, so as to realize the insertion of the nail seat butt joint 13 into the nail abutting seat butt joint locking port 14, and lock the nail cabin assembly 5 and the nail abutting seat 6.

[0096] As shown in Figure 10 In an embodiment, the hydraulic transmission mechanism further comprises a transmission medium movable cavity 40, which is arranged in the nail cabin and the nail cabin connecting seat 3, and is used to accommodate the movement of the nail cabin activation rod 8.

[0097] Therefore, the flexible tubular anastomat according to the embodiments of the present application is provided with the tube body steering adjusting knob 2, the rotation of the tube body steering adjusting knob 2 controls the steering of the staple cabin connecting seat 3 at the other end of the steering pull rope 41, and further controls the direction of the flexible tube body 4, so that the staple cabin can better advance to the required position, and the transmission assembly 43 is provided to drive the flexible tube body 4, so that the length between the handle 1 and the staple cabin can be changed, the soft connection and the length unlimited connection of the staple cabin and the handle 1 of the flexible tubular anastomat are realized, the angle limitation and distance limitation of the staple cabin to the handle 1 are overcome, and end-to-end anastomosis, end-to-side anastomosis and side-to-side anastomosis under unlimited depth and angle can be realized.

[0098] Although example embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the example embodiments are only exemplary and are not intended to limit the scope of the present application thereto. Various changes and modifications can be made thereto by those of ordinary skill in the art without departing from the scope and spirit of the present application. All such changes and modifications are intended to be included within the scope of the present application as defined by the appended claims.

[0099] In several embodiments provided by the present application, it should be understood that the disclosed device and flexible tubular anastomat can be implemented in other ways. For example, the above-described device embodiments are only illustrative, for example, the division of the units is only a logical functional division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another device, or some features can be omitted or not executed.

[0100] In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some examples, well-known flexible tubular anastomosis, structures and techniques are not shown in detail in order not to obscure the understanding of the present specification.

[0101] Similarly, it should be understood that, in order to simplify the present application and help understand one or more of the various inventive aspects, in the description of the exemplary embodiments of the present application, various features of the present application are sometimes grouped together in a single embodiment, figure, or description thereof. However, the flexible tubular anastomat of the present application should not be interpreted as reflecting an intention that the claimed present application requires more features than those explicitly recited in each claim. Rather, as reflected by the corresponding claims, the inventive point is that the corresponding technical problem can be solved with less than all the features of a certain disclosed single embodiment. Therefore, the claims following the specific embodiments are hereby expressly incorporated into the specific embodiments, wherein each claim itself is a separate embodiment of the present application.

[0102] Those skilled in the art will appreciate that all features disclosed in this specification (including any accompanying claims, abstract, and drawings) can be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed in this specification (including any accompanying claims, abstract, and drawings) is a description of a specific embodiment of the application.

[0103] Furthermore, those skilled in the art will appreciate that the features of the different embodiments can be combined with each other, as the application is meant to be within the scope of the claims and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0104] It is noted that the above-mentioned embodiments illustrate rather than limit the application, and that one skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word 'comprising' does not exclude the presence of elements or steps other than those listed in a claim. The word 'a' or 'an' preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of both hardware and software, and any combination thereof. In a unit claim, several of the train traction system anomaly detection devices can be implemented by means of one and the same item of hardware. The use of the words first, second and third does not imply any ordering, but rather these words have been used for the sake of nomenclature. The application relates to all possible combinations of features described herein.

[0105] The above description is only specific embodiments of the present application or specific description of specific embodiments of the present application, the protection scope of the present application is not limited thereto, any skilled in the art within the technical scope disclosed in the present application, can easily think of changes or replacements, all should be covered in the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A flexible tubular stapler characterized by, The handle, the tube body steering adjustment knob, the flexible tube body, the staple cartridge connecting seat, the staple cartridge assembly, the staple abutting seat, the driving knob, the staple cartridge firing rod, the locking mechanism and the transmission mechanism are included. The handle is provided with a tube body steering adjustment knob for driving the staple cartridge connecting seat to steer. One end of the handle is provided with a flexible tube body, which includes a steering pull rope, a snake bone structure and a transmission assembly. One end of the flexible tube body away from the tube body steering adjustment knob is provided with a staple cartridge connecting seat for connecting the flexible tube body and the staple cartridge assembly. One end of the staple cartridge assembly away from the staple cartridge connecting seat is provided with a staple abutting seat, and the staple cartridge assembly includes a staple cartridge and an anastomosis needle arranged in the staple cartridge. The driving knob is used to drive the locking mechanism, and the locking mechanism is used to lock the staple cartridge assembly and the staple abutting seat. The transmission mechanism is used to drive the staple cartridge firing rod, and the staple cartridge firing rod is used to push the anastomosis needle in the staple cartridge to the staple abutting seat.

2. The flexible tubular stapler of claim 1, wherein, The transmission assembly includes a tail end rotary connecting piece, a universal transmission shaft and a head end rotary connecting piece. The tail end rotary connecting piece is connected with the universal transmission shaft. The head end rotary connecting piece is connected with the staple cartridge connecting seat at a first end, and connected with the universal transmission shaft at a second end.

3. The flexible tubular stapler of claim 2, wherein, The anastomat includes a speed reduction and torque increasing structure. The speed reduction and torque increasing structure is arranged between the head end rotary connecting piece and the staple cartridge connecting seat to increase the torque. The speed reduction and torque increasing structure includes a planetary gear set and a worm gear mechanism.

4. The flexible tubular stapler of claim 2, wherein, The locking mechanism includes a staple seat butt joint head driving screw connecting piece, a staple seat butt joint head driving screw, a staple seat butt joint head and a staple abutting seat butt joint locking port. The first end of the staple seat butt joint head driving screw connecting piece is connected with the staple seat butt joint head driving screw, and the second end of the staple seat butt joint head driving screw connecting piece is connected with the head end rotary connecting piece. The first end of the staple seat butt joint head driving screw is connected with the staple seat butt joint head, and the second end of the staple seat butt joint head driving screw is connected with the staple seat butt joint head driving screw connecting piece. The first end of the staple seat butt joint head is provided with a staple abutting seat butt joint locking port, and the second end of the staple seat butt joint head is connected with the staple seat butt joint head driving screw.

5. The flexible tubular stapler of claim 4, wherein, The snake bone structure further includes a tube body cladding and a tube body snake bone inner layer. The tube body cladding is arranged on the surface of the flexible tube body. The tube body snake bone inner layer has the same shaft center as the universal transmission shaft.

6. The flexible tubular stapler of claim 5, wherein, The transmission mechanism is a gear shifting transmission mechanism. The gear shifting transmission mechanism includes a transmission shaft gear shifting knob, a gear shifting pull shaft, a staple cartridge firing rod driving screw connecting piece, a staple cartridge firing rod driving screw, a staple seat locking rotary wheel and a staple cartridge firing rotary wheel. The transmission shaft gear shifting knob is used to drive the gear shifting pull shaft. The gear shifting pull shaft is used to realize gear shifting of the driving knob. The staple cartridge firing rod driving screw connecting piece is used to drive the staple cartridge firing rod driving screw. The staple cartridge firing rod driving screw is used to drive the staple cartridge firing rod. The first end of the nail seat locking rotating wheel is connected with the transmission assembly, and the second end of the nail seat locking rotating wheel is connected with the gear shifting pull shaft. The first end of the nail cabin exciting rotating wheel is connected with the transmission assembly, and the second end of the nail cabin exciting rotating wheel is connected with the gear shifting pull shaft.

7. The flexible tubular stapler of claim 6, wherein, The gear shifting pull shaft is used to realize gear shifting of the driving knob, comprising: When the transmission shaft gear shifting knob is rotated to a first angle, the gear shifting pull shaft connects the nail seat butt joint drive screw connector with the nail seat butt joint drive screw, the driving knob is used to drive the nail seat locking rotating wheel, and the nail seat locking rotating wheel drives the locking mechanism through the transmission assembly; When the transmission shaft gear shifting knob is rotated to a second angle, the gear shifting pull shaft connects the nail cabin exciting rod drive screw connector with the nail cabin exciting rod drive screw, the driving knob is used to drive the nail cabin exciting rotating wheel, and the nail cabin exciting rotating wheel drives the nail cabin exciting rod through the transmission assembly.

8. The flexible tubular stapler of claim 7, wherein, The gear shifting transmission mechanism further comprises a first clamping hole and a second clamping hole: The first clamping hole is used to rotate the transmission shaft gear shifting knob to a first angle; The second clamping hole is used to rotate the transmission shaft gear shifting knob to a second angle.

9. The flexible tubular stapler of claim 5 wherein, The transmission mechanism is a hydraulic transmission mechanism: The hydraulic transmission mechanism comprises a transmission medium drive handle, a transmission connecting rod, a piston drive connecting rod, a piston, a transmission medium storage tube and a one-way valve; The transmission medium drive handle is used to drive the transmission connecting rod; The transmission connecting rod is used to drive the piston drive connecting rod; The piston drive connecting rod is used to push the piston; The piston is provided with a transmission medium storage tube at one end away from the piston drive connecting rod; The transmission medium storage tube is arranged at one end of the flexible pipe body away from the nail cabin connecting seat, and the transmission medium storage tube stores transmission medium; The transmission medium enters the flexible pipe body through the one-way valve and is used to drive the nail cabin exciting rod.

10. The flexible tubular stapler of claim 9, wherein, The hydraulic transmission mechanism further comprises a sealing member and a sealing bearing: The sealing member is arranged on one side of the flexible pipe body away from the one-way valve and is used to seal the connection between the steering pull rope and the flexible pipe body away from the nail cabin connecting seat; The sealing bearing is arranged around the nail seat butt joint drive screw and is used to seal the nail seat butt joint.

Images