Disclosure of Invention
The invention aims at overcoming the defects, and provides a push plate driving device of a disposable rotary tubular cutting anastomat, which is matched with the disposable rotary tubular cutting anastomat for use. Through the indication safety device, the cutting anastomotic site can be clearly observed, and false firing is prevented.
The push plate driving device of the disposable rotary tubular cutting anastomat is realized by adopting the following technical scheme:
the push piece driving device of the disposable rotary tubular cutting anastomat comprises an annular knife, a push nail piece, a bent push rod, a straight push rod, a firing spring, a torsion spring blocking pin, a movable handle and a movable handle cover. The annular knife is moulded to the package and is moulded on the push pin piece, push pin piece front end is provided with the push plate that is the annular distribution, the rear end is provided with curved push rod installation draw-in groove, push pin piece rear portion is provided with nail storehouse cover installation draw-in groove, curved push rod is whole to have certain radian, the front end is provided with push pin piece installation arch, the lower part is provided with upper and lower connection piece mounting groove, the rear end is provided with straight push rod mounting groove, straight push rod front end is provided with curved push rod installation arch, the middle part is provided with the lead screw sliding hole, straight push rod rear end is provided with movable handle movable draw-in groove, curved push rod installation arch of straight push rod front end is installed in the straight push rod mounting groove of curved push rod rear end, the movable handle top is provided with straight push rod cooperation arch, straight push rod cooperation arch lower part is provided with movable handle pin mounting hole, the movable handle outside is provided with the percussion spring screens, movable handle lower part is provided with movable handle cover draw-in groove, movable handle cover draw-in groove installs on movable handle cover movable handle clamping on the movable handle cover, movable handle clamping pin leans against in the straight push rod mounting spring pin at the straight push rod mounting hole, movable handle spring pin is pushed against movable handle spring pin fixed on movable handle hole, movable handle spring mounting hole one side, movable handle top spring pin is pushed against movable handle pin inside the movable handle pin.
The push pin piece is installed in the push pin mounting groove of nail storehouse cover, and the push pin piece of push pin piece slides in the push pin sliding tray of nail storehouse, and annular sword slides in the nail storehouse, and curved push rod installs inside curved aluminum pipe, and curved push rod rear portion slides in the curved push rod movable groove of twist grip, and straight push rod slides in the straight push rod movable groove of twist grip, and lead screw and upper and lower connection piece seat are installed inside straight push rod, and the upper and lower connection piece that the front end is connected is installed in the upper and lower connection piece mounting groove of curved push rod, and the guiding axle is installed inside curved push rod to can slide each other.
The push piece driving device of the disposable rotary tubular cutting anastomat is matched with the disposable rotary tubular cutting anastomat for use, and the working principle of the disposable rotary tubular cutting anastomat is as follows:
generally, when performing an alimentary canal operation, the adjusting nut is rotated anticlockwise, under the action of the matching screw thread of the adjusting nut at the rear end of the screw rod, the upper connecting piece seat, the lower connecting piece seat, the guide shaft, the clamp spring tube, the clamping spring piece and the nail propping seat are pushed, the clamp spring tube of the nail propping seat is partially screwed out, the assembled clamp spring tube of the nail propping seat is pulled out, the tissue needing to be cut and anastomosed is beaten into a purse, the clamp tube of the nail propping seat is clamped on the guide shaft, at the moment, a doctor can push the rotary switch upwards, the rotary switch bulge of the fixed handle is separated from the rotary clamping groove of the rotary handle, at the moment, the rotary handle can be rotated, the nail bin and the nail bin sleeve are driven by the bent aluminum tube and the bent push rod, the nail propping seat is rotated to be adjusted to a proper operation position, the rotary switch is released, and the rotary switch bulge on the fixed handle is continuously clamped on the rotary clamping groove under the action of the rotary switch spring. And then the adjusting nut is rotated clockwise to observe the window, if the pointer does not reach the firing position and the movable handle is pressed carelessly, at the moment, the safety boss of the movable handle props against the safety plane of the pointer drag hook and cannot be fired, the adjusting nut is rotated continuously until the pointer indicates the firing position, at the moment, the safety boss of the movable handle is positioned at the left side of the safety plane of the pointer drag hook and is free, the movable handle is pressed to push the straight push rod, the bent push rod, the nail pushing sheet and the annular knife, the cutting anastomosis is completed, and under the action of the firing spring, the straight push rod, the bent push rod, the nail pushing sheet and the annular knife are driven to reset.
The push piece driving device of the disposable rotary tubular cutting anastomat is matched with the disposable rotary tubular cutting anastomat for use, and has the advantages that:
the disposable rotary tubular cutting anastomat is reasonable in design and compact in structure. In the alimentary canal operation, through rotating the handle, the position of fixed handle and nail seat is supported in the regulation of arbitrary angle, reduces the operation degree of difficulty, avoids the position of movable handle to hinder the operation space of operation. Through the instruction safety device, can clearly observe the cutting and coincide the position, the rotation adjusting nut, the pilot pin does not arrive the percussion position, carelessly presses movable handle this moment, then can not fire, if continue to rotate adjusting nut, the pilot pin indicates the percussion position, presses movable handle this moment, can accomplish the percussion, reduces in the operation, because of the operation failure that the maloperation brought, improves the operation success rate. The design of the large window can more clearly observe the position of the indicating needle, and reduce the observation difficulty of doctors in the operation process. The sharp cutting knife can cut off tissues once during operation, complete cutting and suturing, and relieve pain of patients. The movable handle and the fixed handle adopt the rubber coating processing technology, the frosted touch sense is adopted, the anti-slip effect can be achieved in the operation process, and the design of the two-wing adjusting nut is easier when the two-wing adjusting nut rotates.
The push plate driving device of the disposable rotary tubular cutting anastomat has reasonable structural design, compact structure, stable driving, large force distance and high strength, and in the alimentary canal operation, the adjusting nut is rotated until the pointer indicates the firing position, at the moment, the safety boss of the movable handle is positioned at the left side free position of the safety plane of the pointer drag hook, the movable handle is pressed, the straight push rod, the bent push rod, the push nail sheet and the annular knife are pushed, the cutting and the anastomosis are completed at one time, under the action of the firing spring, the straight push rod, the bent push rod, the push nail sheet and the annular knife are driven to reset, the operation is convenient, and the success of the operation is ensured.
Detailed Description
Referring to fig. 1-12, the disposable rotary tubular cutting stapler is realized by adopting the following technical scheme, and the disposable rotary tubular cutting stapler comprises an adjusting nut device 1, a nail supporting seat adjusting device 2, a fixed handle 3, a push piece driving device 4, a rotary handle 5, a nail bin fixing device 6, an indication safety device 7 and a rotary fixing device 8.
The adjusting nut 1 device comprises an adjusting nut retainer ring 1-1, an adjusting nut pin 1-2, an adjusting nut 1-3, an adjusting nut positioning bolt 1-4 and an adjusting nut cover plate 1-5. One side of the front end of the adjusting nut 1-3 is provided with an adjusting nut pin hole 1-3-1, an adjusting nut pin 1-2 is installed in the adjusting nut pin hole 1-3-1 of the adjusting nut 1-3, an adjusting nut retainer ring 1-1 is sleeved on the front end of the adjusting nut 1-3, a through hole 1-3-2 is arranged in the middle of the adjusting nut 1-3, one section of the through hole is provided with threads 1-3-3, the rear end of the adjusting nut 1-3 is provided with an adjusting nut positioning bolt matching thread 1-3-4 and an adjusting nut cover matching installation clamping groove 1-3-5, the middle of the adjusting nut is provided with a fixed handle installation protrusion 1-3-6, the adjusting nut positioning bolt 1-4 is matched and installed in an adjusting nut positioning bolt matching thread 1-3-4 of the rear end of the adjusting nut, and an adjusting nut cover plate 1-5 is installed in the adjusting nut matching installation clamping groove 1-3-5.
The nail supporting seat adjusting device 2 comprises a nail supporting seat cover cap 2-1, a clamp spring sheet 2-2, a clamp spring tube 2-3, a nail supporting seat 2-4, a cutter backing ring 2-5, a guide shaft 2-6, a cotter pin 2-7, an upper connecting sheet 2-8, a lower connecting sheet 2-9, an upper connecting sheet seat 2-10, and a screw rod 2-11. The clamping spring 2-2 is sheet-shaped and elastic, the clamping spring tube 2-3 is cylindrical, a through hole is arranged in the middle, clamping spring sheet mounting grooves 2-3-1 are arranged on two sides, a clamping seat mounting protrusion 2-3-2 is arranged at the front end, a nail bin sleeve matching rib 2-3-3 is arranged in the middle, the clamping spring 2-2 is mounted in the clamping spring sheet mounting groove 2-3-1 of the clamping spring tube 2-3, a clamping seat 2-4 is arranged in the middle, a clamping spring tube mounting hole 2-4-1 is arranged in the clamping seat 2-4, an anastomosis nail forming groove 2-4-2 is arranged on two sides of the middle, a clamping seat cap mounting hole 2-4-3 is arranged on two sides of the middle, a clamping seat 2-4-4 is arranged on the inner ring, a cutter ring mounting groove 2-4-4 is arranged on the inner ring of the anastomosis nail forming groove 2-4, the clamping seat mounting protrusion 2-3-2 is mounted in the clamping spring tube mounting hole 2-4-1 of the clamping seat 2-4, a clamping seat cap 2-1 is arranged at the rear end of the clamping seat cap 2-1, a clamping seat cap 2-1 is provided with a clamping seat mounting protrusion 2-1, a clamping seat cap 2-6-1 is mounted in the clamping seat 2-4-6-4, a guide seat 2-6-4 is mounted in the clamping seat 2-4, and a clamping seat 2-6-4 is mounted in the clamping seat 2-4, and a guide seat 2-4 is mounted in the clamping seat 2-4 groove 2-6-4, and a clamping seat 2-6-4 is mounted in the clamping seat mounting hole 2-4, the guide shaft 2-6 rear end is provided with a connecting piece mounting groove 2-6-2 and a cotter pin mounting hole 2-6-3, the front end of the upper connecting piece 2-8 is provided with a cotter pin mounting hole, the rear end is also provided with a cotter pin mounting hole, the front end of the lower connecting piece 2-9 is provided with a cotter pin mounting hole, the rear end is also provided with a cotter pin mounting hole, the front end of the upper and lower connecting piece seats 2-10-2 are provided with a connecting piece mounting groove 2-10-1 and a cotter pin mounting hole 2-10-2, the upper connecting piece 2-8 and the lower connecting piece 2-9 are overlapped together, both ends are respectively connected with a cotter pin 2-7, one end is arranged in the connecting piece mounting groove 2-6-2 of the guide shaft 2-6, the other end is arranged in the connecting piece mounting groove 2-10-1 of the upper and lower connecting piece seat 2-10, the rear end of the upper and lower connecting piece seat is provided with a lead screw mounting groove 2-10-3, the front end of the lead screw 2-11 is provided with an upper and lower connecting piece seat mounting bulge 2-11-1, the middle rear side is provided with a guide screw mounting threaded hole 2-11-2, the rear end is provided with an adjusting nut matching threaded nut matching the upper and lower connecting piece 2-11-3, and the front end of the upper connecting piece 2-3 is matched with the lead screw mounting boss 2-3 matching the lead screw mounting hole 2-11-2-3.
The front end of the fixed handle 3 is provided with a rotary switch bulge 3-1, the inner side of the front part is provided with a rotary handle installation bulge 3-2, the right side of the rotary handle installation bulge 3-2 is provided with a torsional spring stop pin installation hole 3-3, the lower side is provided with a movable handle movable groove 3-4, the upper side of the lower part is provided with a movable handle pin installation hole 3-5 and an indicating needle installation column 3-6, the upper part is provided with a window installation groove 3-7, the lower side of the rear part is provided with a pointer drag hook movable groove 3-8, the middle part of the rear part is provided with a guide screw movable groove 3-9, and the rear end of the fixed handle 3 is provided with an adjusting nut installation groove 3-10. The fixed handle 3 consists of a left fixed handle and a right fixed handle.
The push piece driving device 4 of the disposable rotary tubular cutting anastomat comprises an annular knife 4-1, a push nail piece 4-2, a bent push rod 4-3, a straight push rod 4-4, a firing spring 4-5, a torsion spring stop pin 4-6, a movable handle pin 4-7, a movable handle 4-8 and a movable handle cover 4-9. The annular knife 4-1 is injection molded on the push pin sheet 4-2, the front end of the push pin sheet is provided with push pins 4-2-1 which are annularly distributed, the rear end of the push pin sheet is provided with a bent push rod installation clamping groove 4-2-2, the rear part of the push pin sheet is provided with a nail bin sleeve installation clamping groove 4-2-3, the bent push rod 4-3 is integrally provided with a certain radian, the front end of the push pin sheet is provided with a push pin installation bulge 4-3-1, the lower part of the push pin sheet is provided with an upper connecting piece installation groove 4-3-2, the rear end of the push pin sheet is provided with a straight push rod installation groove 4-3-3, the front end of the straight push rod 4-4 is provided with a bent push rod installation bulge 4-1, the middle part of the push rod is provided with a screw sliding hole 4-2, the rear end of the straight push rod is provided with a movable handle movable clamping groove 4-4-3, the bent push rod installation bulge 4-4-1 at the front end of the straight push rod 4-3 is installed in the straight push rod installation groove 4-3-3 at the rear end of the bent push rod 4-3, the top end of the movable handle 4-8 is provided with a straight push rod matching bulge 4-8-1, the upper and lower connecting piece installation bulge 4-8-2 is provided with a movable handle 4-8, the upper and lower connecting piece installation bulge 4-8-4-9 is provided with a movable handle-3, the upper and the movable handle is provided with a movable handle-3, the upper side of the movable handle and the movable handle 9 is provided with a movable handle safety cover, the upper and the movable handle 9 is provided with a movable handle and the movable handle 4-3, the movable handle 9, the upper side and the movable handle 9 is provided with a movable safety cover, and the movable handle 4-2. The movable handle cover clamping groove 4-8-4 of the movable handle 4-8 is arranged on the movable handle mounting buckle 4-9-1 of the movable handle cover 4-9, the movable handle pin 4-7 penetrates through the movable handle pin mounting hole 4-8-2 of the movable handle to be arranged in the movable handle pin mounting hole 3-5 of the fixed handle, the firing spring 4-5 is sleeved on the movable handle pin 4-7, the torsion spring stop pin 4-6 is arranged in the torsion spring stop pin mounting hole 3-3 on the fixed handle, one side of the firing spring 4-5 abuts against the torsion spring stop pin 4-6, the other side abuts against the firing spring clamping position 4-8-3 of the movable handle 4-8, and the straight push rod matching bulge 4-8-1 of the movable handle 4-8 abuts against the movable handle clamping groove 4-4-3 of the straight push rod 4-4.
The inner side of the front part of the rotary handle 5 is provided with a bent aluminum pipe mounting bulge 5-1, the middle part is provided with a bent push rod movable groove 5-2, the outer side of the rear part is provided with a rotary opening Guan Danhuang sliding column 5-3, the inner side of the rear end is provided with a straight push rod movable groove 5-4, the outer side of the rear part is provided with a fixed handle mounting groove 5-5, and the front end of the rotary switch spring sliding column 5-3 is provided with a rotary switch sliding boss 5-6. The rotating handle 5 is mounted on the rotating handle mounting protrusion 3-2 of the fixed handle 3 through the fixed handle mounting groove 5-5. The rotary handle 5 consists of a left rotary handle and a right rotary handle.
The nail bin fixing device 6 comprises a nail bin 6-1, a nail bin sleeve 6-2, a front lock ring 6-3, a bent aluminum pipe 6-4 and a rear lock ring 6-5. The nail bin 6-1 is cylindrical, a through hole is formed in the middle, a nail groove and a push piece sliding groove 6-1 which are distributed annularly are formed in the upper portion, a nail bin sleeve mounting groove 6-1-2 is formed in the lower portion, a nail bin mounting protrusion 6-2-1 is formed in the inner side of the front end of the nail bin sleeve 6-2, a push piece mounting groove 6-2-2 is formed in the middle portion, a tubular guide shaft sliding groove 6-2-3 is formed in the center, an aluminum bending pipe mounting groove 6-2-4 is formed in the lower portion, the nail bin 6-1 is mounted on the nail bin mounting protrusion 6-2-1 of the nail bin sleeve 6-2 through the nail bin sleeve mounting groove 6-1-2, the aluminum bending pipe 6-4 is an elbow pipe with a certain radian, the front end of the aluminum bending pipe 6-4 is provided with the nail bin sleeve mounting protrusion 6-4-1, the aluminum bending pipe is mounted in the curved pipe mounting groove 6-2-4 of the nail bin sleeve 6-2 in a matched mode, the front lock ring 6-3 is mounted on the outer side, the rear end of the nail bin sleeve is provided with a rotary handle mounting hole 6-4-2, and the aluminum pipe is mounted on the curved pipe mounting protrusion 6-1-5-2 in a matched mode, and the lock ring is mounted on the outer side of the curved handle is mounted on the curved protrusion 6-5-1. The nail groove is internally provided with a anastomotic nail.
The indicating safety device 7 comprises a spring piece 7-1, a window 7-2, an indicating needle 7-3, a pointer drag hook 7-4, an adjusting block 7-5, a guide screw 7-6 and a compression spring 7-7. The lower part of the indicating needle 7-3 is provided with a fixed handle mounting hole 7-3-1, the indicating needle 7-3 is mounted on an indicating needle mounting column 3-6 of the fixed handle, the lower end of the indicating needle 7-3 is provided with a pointer drag hook boss 7-3-2, the upper part is provided with a pointer 7-3-3 and a spring piece mounting boss 7-3-4, the spring piece is mounted on the indicating needle mounting column 3-6 of the fixed handle, the upper part is propped against the spring piece mounting boss 7-3-4 of the indicating needle 7-3, a fixed handle mounting boss 7-2-1 is arranged on a window 7-2, the window 7-2 is mounted in a window mounting groove 3-7 of the fixed handle, the pointer 7-3-3 below can be seen through the transparent window 7-2, the front end of the pointer drag hook 7-4 is provided with a drag hook 7-4-1, the rear end is provided with a lead screw mounting hole 7-4-2, the middle part is provided with a safety plane 7-4-3, the pointer 7-4 is sleeved on the lead screw 2-11, the pointer movable groove 3-8 mounted on the fixed handle, and the pointer drag hook 7-4 at the front end is sleeved on the pointer boss 3-3 of the drag hook. The compression spring 7-7 is sleeved on the screw rod, the front end of the compression spring 7-7 abuts against the pointer drag hook 7-4, and the rear end abuts against the adjusting nut 1-3. The adjusting block 7-5 is U-shaped, a kidney-shaped hole 7-5-1 is formed in the middle of the adjusting block, the adjusting block 7-5 is mounted on the screw rod 2-11 through a guide screw 7-6, and the guide screw 7-6 is mounted in the guide screw mounting threaded hole 2-11-2. The left side of the pointer drag hook 7-4 is propped against the adjusting block 7-5, and the guide screw 7-6 moves in the guide screw moving groove 3-9 of the fixed handle.
The rotary fixture 8 includes a rotary switch spring 8-1 and a rotary switch 8-2. The rotary switch spring 8-1 is sleeved on the rotary switch spring sliding column 5-3 of the rotary handle 5, anti-slip patterns 8-2-1 are arranged on the outer side of the rotary switch 8-2, through holes and rotary handle sliding grooves 8-2-2 are formed in the inner side of the rotary switch spring, the rotary switch 8-2 is sleeved on the rotary handle 5, the rotary switch sliding boss 5-6 slides on the rotary handle sliding grooves 8-2-2, rotary clamping grooves 8-2-3 distributed in an annular mode are formed in the rear portion of the rotary switch 8-2, and rotary switch bulges 3-1 on the fixed handle 3 are clamped on the rotary clamping grooves 8-2-3 under the action of the rotary switch spring 8-1.
The push plate 4-2 is arranged in a push plate mounting groove 6-2-2 of the nail bin sleeve 6-2, a push plate 4-2-1 of the push plate 4-2 slides in a push plate sliding groove 6-1-1 of the nail bin 6-1, the annular knife 4-1 slides in the nail bin 6-1, the curved push rod 4-3 is arranged in the curved aluminum pipe 6-4, the rear part of the curved push rod 4-3 slides in a curved push rod movable groove 5-2 of the rotary handle 5, the straight push rod 4-4 slides in a straight push rod movable groove 5-4 of the rotary handle 5, the screw rod 2-11 and the upper and lower connecting piece seats 2-10 are arranged in the straight push rod 4-4, the upper and lower connecting pieces 2-8/2-9 connected at the front end are arranged in the upper and lower connecting piece mounting grooves 4-3-2 of the curved push rod 4-3, and the guide shaft 2-6 is arranged in the curved push rod 4-3 and can mutually slide.
When the disposable rotary tubular cutting anastomat is used with the disposable rotary tubular cutting anastomat, the adjusting nut 1-3 is firstly rotated anticlockwise, under the action of the adjusting nut at the rear end of the screw rod 2-11 matched with the screw thread 2-11-3, the upper connecting piece seat 2-10, the lower connecting piece 2-8, the lower connecting piece 2-9, the guide shaft 2-6, the clamp spring tube 2-3, the clamping reed 2-2 and the clamp spring seat 2-4 are pushed to enable the clamp spring tube 2-3 of the clamp spring seat 2-4 to be partially screwed out, the assembled clamp spring seat 2-4 and the clamp spring tube 2-3 are pulled out, a purse is well formed in tissues needing cutting anastomosis, the clamp spring seat 2-4 and the clamp spring tube 2-3 are clamped on the guide shaft 2-6, at the moment, a doctor can push the rotary switch 8-2 upwards, the rotary switch boss 3-1 of the fixed handle 3 is enabled to be separated from the rotary clamp groove 8-2-3 of the rotary handle 5, the fixed handle 3 can be rotated, the rotary switch 3 is adjusted to be clamped on the rotary switch 3, and the rotary switch 3 is enabled to be continuously clamped on the rotary switch 3-3 under the action of the rotary switch 8-3, and the rotary switch 3 is enabled to be continuously clamped on the rotary switch 3-3. Then the adjusting nut 1-3 is rotated clockwise, the window 7-2 is observed, if the pointer 7-3-3 does not reach the firing position and the movable handle 4-8 is pressed carelessly, at this time, the safety boss 4-8-5 of the movable handle 4-8 is propped against the safety plane 7-4-3 of the pointer drag hook 7-4, the firing cannot be performed, the adjusting nut 1-3 is rotated continuously until the pointer 7-3-3 indicates the firing position, at this time, the safety boss 4-8-5 of the movable handle 4-8 is positioned at the left side of the safety plane 7-4-3 of the pointer drag hook 7-4, the movable handle 4-8 is pressed, the straight push rod 4-4, the bent push rod 4-3, the push nail pieces 4-2 and the annular knife 4-1 are pushed, cutting anastomosis is completed, and the straight push rod 4-4, the bent push rod 4-3, the push nail pieces 4-2 and the annular knife 4-1 are driven to reset under the action of the firing spring 4-5.