With the intracavity Endo-GIA of anti-lock deviceTechnical field
The present invention relates to a kind of intracavity Endo-GIA, particularly relate to a kind of intracavity Endo-GIA with anti-lock device.
Background technology
Current intracavity Endo-GIA has comparatively been widely used in the general surgery of multiple opening or Wicresoft, department of obstetrics and gynecology, Urology Surgery, thoracic surgery and paediatric surgery, in use need freely clamp with the jaw of anastomat head or stir tissue, in open surgery, directly can enter body cavity by otch and operate; In Minimally Invasive Surgery, apparatus needs to hold close handles and is closed by jaw before entering body cavity, open jaw and operate after entering.
In operation, doctor in order to find the best clip position of tissue, needs to stir tissue sometimes, and doctor can utilize the distal jaw of intracavity Endo-GIA to clamp and stir tissue, but in the process used, as firmly jaw locked slightly greatly.Jaw must be unclamped could again stir tissue by being unlocked by pressing switch after jaw locking, troublesome poeration.Even may due to maloperation, jaw is locked and is clamped the tissue that should not clamp, tissue is damaged, and then may mistakenly hit hair device tool, considerably increase operation risk.
Summary of the invention
The present invention is directed to existing intracavity Endo-GIA troublesome poeration, the technical problem that dangerous and operation risk is large, a kind of simple to operate, safe and reliable, intracavity Endo-GIA with anti-lock device of evading operation risk is provided.
For this reason, the present invention is provided with jaw, sleeve, firing handle, close handles, close handles connector, unlock switch and fixed handle, close handles connector is fixedly connected with close handles, it is characterized in that also being provided with groove, anti-lock device is provided with anti-lock button, anti-lock slide and return spring, and anti-lock slide is located in groove.
Preferably, one end of anti-lock slide is located at by anti-lock button, and anti-lock slide is provided with clamping block, and return spring is located on anti-lock slide.
Preferably, anti-lock slide two ends are provided with anti-lock button; Anti-lock slide is longitudinally provided with two relative clamping blocks, and on anti-lock slide, the both sides of clamping block are equipped with return spring.
Preferably, anti-lock slide is provided with anti-lock slider body, and anti-lock slider body is cuboid.
Preferably, unlock switch is provided with dead bolt, anti-lock device by the clamping block on dead bolt and anti-lock slide with the use of.
Beneficial effect of the present invention is, add the anti-lock structure coordinated with unlock switch, by anti-lock structure to the locking of unlock switch or unblock, control coordinating between unlock switch with handle locking connector, thus control the lock-out state of jaw, avoid locking the mistake of jaw in operation process.In addition, anti-lock-switch can also play instant lock function in operation process, when apparatus needs to take out from abdominal cavity, press unlock switch to maximum position, jaw opens, anti-lock-switch return, and unlock switch locks by anti-lock structure, close handles of can holding with a firm grip takes out apparatus, jaw opens when unclamping close handles, directly changes new nail bin and carries out using next time, need not repeatedly unlock by being unlocked by pressing switch, simplify and use step, simple to operate.Meanwhile, as long as unlock switch is locked, close handles just can not be locked, and now intracavity Endo-GIA just can not carry out firing action, close handles can not occur when closing, the danger that generation mistakenly hit is sent out by mistake, safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the first schematic diagram that anti-lock device is in released state;
Fig. 3 is the second schematic diagram that anti-lock device is in released state;
Fig. 4 is the schematic diagram that anti-lock device is in the lock state;
Fig. 5 is the structural representation of unlock switch;
Fig. 6 is the structural representation of anti-lock slide.
Symbol description in figure:
1. jaw; 2. sleeve; 3. firing handle; 4. close handles; 5. anti-lock button; 6. fixed handle; 7. unlock switch; 8. close handles connector; 9. anti-lock slide; 10. return spring; 11. square holes; 71. dead bolts; 72. dead bolt left sides; 91. anti-lock slider body; 92. clamping blocks.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described further.
As depicted in figs. 1 and 2, the present invention is provided with jaw 1, sleeve 2, firing handle 3, close handles 4 fixed handle 6, unlock switch 7 and close handles connector 8.Close handles connector 8 one end is fixedly connected with close handles 4, and one end contacts with unlock switch 7, by operation close handles 4, close handles connector 8 is moved, and then makes unlock switch 7 action.
As shown in Figures 2 to 6, the present invention is also provided with anti-lock device, and anti-lock device is provided with anti-lock button 5, anti-lock slide 9 and return spring 10.Anti-lock slide 9 is provided with anti-lock slider body 91, and anti-lock slider body 91 is cuboid, and its two ends are provided with columniform termination, and termination is provided with anti-lock button 5.Anti-lock slider body 91 is longitudinally provided with two relative clamping blocks 92, and on anti-lock slider body 91, the both sides of clamping block 92 are equipped with a return spring 10.
The present invention is also provided with square hole 11, and anti-lock slide 9 is located in square hole 11, and the square structure of square hole ensure that the direction of anti-lock slide 9 clamping block 92 when moving along its axial direction is constant.Square hole 11 can be the groove of other shape, only needs to ensure that clamping block 92 direction is constant.Unlock switch 7 is provided with dead bolt 71, and anti-lock device need coordinate applicable with the unlock switch 7 on intracavity Endo-GIA.
Below work process of the present invention is described in detail.
For the anti-lock button 5 in left side, as shown in Figure 3, now clamping block 92 is attached on the left side 72 of dead bolt 71, now abundant being unlocked by pressing switch 7, due to the reason of unlock switch 7 right low left high structure, dead bolt 71 is upwards walked, anti-lock slide 9 will automatically reset under the effect of return spring 10 spring force (being just in time reset to immediately below unlock switch 7 dead bolt 71) and withstand the dead bolt of unlock switch, thus unlock switch can not be fallen, namely unlock switch 7 locks by anti-lock device, can not be locked between unlock switch 7 and close handles connector 8, and then reach the object of anti-lock.
When needs locked closed handle 4, also be first fully being unlocked by pressing switch 7, then anti-lock button 5 is pressed, now anti-lock slide 9 is being pushed along its axial direction, the return spring 10 of opposite side is compressed, clamping block 92 and dead bolt 71 are thrown off, now first unclamp unlock switch 7 (clamping block 92 is attached to again on the opposite side end face of dead bolt 71), unlock switch 7 gets back to initial position, then unclamp anti-lock button 5, fully extruding close handles 4, now can hear " click clatter " sound, close handles 4 can be locked, and namely namely intracavity Endo-GIA jaw 1 is locked.
Two return springs 10 are enclosed within the two ends of clamping block 92 respectively, when anti-lock device non-locking unlock switch 7, one-sided return spring 10 is in Pre strained state, when now unlock switch 7 being pressed to maximum position, position shown in anti-lock slide 9 return under the effect of pretension side spring force is middle, thus locking unlock switch 7.The both sides of intracavity Endo-GIA are equipped with anti-lock button 5, and the pressing of any side all can realize the released state of anti-lock structure.
The present invention adopts the setting of the anti-lock button 5 of bilateral, more convenient.It also can adopt one end of anti-lock slide 9 to arrange anti-lock button 5, and anti-lock slide 9 is provided with clamping block 92, and return spring 10 is located on anti-lock slide 9, by by or the mode of pulling out realize unblock or the locking of unlock switch 7.
Only as described above; be only specific embodiments of the invention, when not limiting scope of the invention process with this, therefore the displacement of its equivalent assemblies; or the equivalent variations to do according to scope of patent protection of the present invention and amendment, all still should belong to the category that claims of the present invention is contained.