Summary of the invention
The object of the invention is for deficiency of the prior art, a kind of bendable end operating theater instruments with pre-bend pipe structure is provided.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of bendable end operating theater instruments with pre-bend pipe structure, be provided with handle and action bars, pre-bend pipe is provided with in described handle and action bars, described pre-bend pipe is assemblied on the push-pull bar of drawing handle, described action bars can move relative to handle and then regulate pre-bend pipe relative to the extension elongation of action bars, and the internal run-through of described action bars and pre-bend pipe forms indwelling device passage.
Described pre-bend pipe has two, is respectively the first pre-bend pipe and the second pre-bend pipe, and it is inner that the described first pre-bend pipe is nested in the second pre-bend pipe, and the described first pre-bend pipe and the second pre-bend pipe are assemblied on the first push-pull bar and the second push-pull bar respectively.
The first described push-pull bar and the second push-pull bar slot type are fitted together to and can relative to each other slide.
The near-end of described push-pull bar is provided with jaw, and the outside of described jaw is provided with locking sleeve.
When described jaw is incorporated in one, the Zhou Jing proximally to far-end diminishes gradually, and the inwall Zhou Jing of described locking sleeve proximally also diminishes gradually to far-end; Described jaw and locking sleeve are threaded.
Described handle inwall is provided with groove, and described bottom portion of groove is fixed with spring, and described spring upper end is provided with hoodle; Described push-pull bar outer wall is provided with the pit of axially-aligned.
Described pre-bend pipe is made up of metal knitted pipe, Nitinol light-wall pipe or high molecule plastic.
The invention has the advantages that:
1, the present invention material such as the metal knitted pipe of natural bend in one direction can be applied to field of surgical, the length that it stretches out in action bars far-end is controlled by drawing handle, and then difform instrument end can be obtained, as arc, serpentine hyperbolicity is bending, the operating theater instruments being assemblied in indwelling device passage can be reached and each position of focus, operate meticulousr, under specific operation tract, compared to existing operating theater instruments, the present invention can realize full angle non-blind area, be convenient to excise various form, the tumor of position, operate simpler, surgical effect is better,
2, when the present invention arranges two nested pre-bend pipes, for handle two push-pull bars of pre-bend pipe be slot type be fitted together to, the mobile of the two can be demarcated point-blank, the shape of two pre-bend pipes can be controlled more accurately, and when can ensure that one of them push-pull bar is locked, another push-pull bar is also locked indirectly;
3, described push-pull bar can be locked, and is convenient to fixing pre-bending tube shape, and push-pull bar of the present invention locking design is convenient and practical;
4, described push-pull bar near-end is provided with jaw, by the operating theater instruments in locking sleeve rotational lock indwelling device passage, operates very easy.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention provided by the invention is elaborated.
The Reference numeral related in accompanying drawing and ingredient as follows:
21. handles, 211. grooves, 212. springs, 213. hoodles
22. drawing handles, 2210. first drawing handles, 2220. second drawing handles, 221. finger rings, 2211. first finger rings, 2212. second finger rings, 222. push-pull bars, 2221. first push-pull bars, 2222. second push-pull bars, 2223. pits, 2224. jaws, 2225. external screw threads
23. action bars
24. pre-bend pipes, 241. first pre-bend pipes, 242. second pre-bend pipes
25. locking sleeves, 251. swing handles, 252. female threads
26. indwelling device passages
Embodiment 1
Please refer to Fig. 1, Fig. 1 is the axonometric chart that embodiment 1 has the bendable end operating theater instruments of pre-bend pipe structure.The described bendable end operating theater instruments with pre-bend pipe structure is provided with handle 21, drawing handle 22, action bars 23, pre-bend pipe 24 and locking sleeve 25.Described handle 21 one end is connected with drawing handle 22, and the other end is connected with action bars 23.Described handle 21, drawing handle 22, action bars 23, pre-bend pipe 24 are equipped with cavity.Described pre-bend pipe 24 is positioned at the inside of handle 21 and action bars 23.Described locking sleeve 25 is placed on the near-end of drawing handle 22, and locking sleeve 25 outer wall is provided with swing handle 251.
Please refer to Fig. 2, Fig. 2 is the A-A sectional view of Fig. 1.Described drawing handle 22 is provided with finger ring 221 and push-pull bar 222; Described finger ring 221 is fixed on the centre portion of push-pull bar 222; Described push-pull bar 222 inner hollow, can slide in the cavity that far-end is embedded in handle 21 in the cavity of handle 21.Described pre-bend pipe 24 is assemblied in push-pull bar 222 far-end.The internal run-through of described drawing handle 221 and pre-bend pipe 24 forms indwelling device passage 26.Described locking sleeve 25 is socketed on the outside of push-pull bar 222 near-end.
Please refer to Fig. 3, Fig. 3 is the fixation principle figure of drawing handle in embodiment 1.The inwall of described handle 21 near-end is provided with groove 211, is fixed with spring 212 bottom described groove 211, and the upper end of described spring 212 is provided with hoodle 213.The outer wall of described push-pull bar 222 far-end is provided with the pit 2223 of axially-aligned.When making it slide in the cavity of handle 21 to push-pull bar 222 force, described hoodle 213 is oppressed to be bounced back in groove 211, when stopping force, under the resilience force of spring 212, described hoodle 213 falls in one of them pit 2223, and push-pull bar 222 is fixed relative to handle 21.
Please refer to Fig. 4 and Fig. 5, Fig. 4 is the proximal structure schematic diagram of push-pull bar in embodiment 1, and Fig. 5 is the partial enlarged drawing of B in Fig. 2.Described push-pull bar 222 near-end is provided with four jaws 2224; Described jaw 2224 inwall is arc, and four jaws 2224 reserve indwelling device passage 26 in central authorities; Four jaw 2224 outer walls are provided with external screw thread 2225; When four jaws 2224 are incorporated in one, the Zhou Jing proximally to far-end diminishes gradually.Described locking sleeve 25 is placed on the outside of four jaws 2224, and the inwall Zhou Jing of locking sleeve 25 proximally also diminishes gradually to far-end, and the inwall of locking sleeve 25 is provided with female thread 252.Described female thread 252 and external screw thread 2225 cooperatively interact, and make locking sleeve 25 can at push-pull bar 222 near-end axial-rotation.
Embodiment 2
Please refer to Fig. 6, Fig. 6 is the axonometric chart that embodiment 2 has the bendable end operating theater instruments of pre-bend pipe structure.The described bendable end operating theater instruments with pre-bend pipe structure is provided with handle 21, drawing handle 22, action bars 23, pre-bend pipe 24 and locking sleeve 25.Described drawing handle 22 has two, is respectively the first drawing handle 2210 of near-end and the second drawing handle 2220 of far-end.Described pre-bend pipe 24 also has two, is respectively the first pre-bend pipe 241 and the second pre-bend pipe 242.Described handle 21 one end is connected with the second drawing handle 2220, and the other end is connected with action bars 23.Described handle 21, first drawing handle 2210, second drawing handle 2220, the pre-bend pipe of action bars 23, first 241 and the second pre-bend pipe 242 are equipped with cavity.Described second pre-bend pipe 242 is positioned at the inside of handle 21 and action bars 23, and the described first pre-bend pipe 241 is through the inside of the second pre-bend pipe 242.Described locking sleeve 25 is placed on the near-end of the first drawing handle 2210, and locking sleeve 25 outer wall is provided with swing handle 251.
Please refer to Fig. 7, Fig. 7 is the C-C sectional view of Fig. 6.The first described drawing handle 2210 is provided with the first finger ring 2211 and the first push-pull bar 2221, and the first described finger ring 2211 is fixed on the centre portion of the first push-pull bar 2221; The second described drawing handle 2220 is provided with the second finger ring 2212 and the second push-pull bar 2222.The second described push-pull bar 2222 is positioned at the top of the first push-pull bar 2221 far-end.Can slide in the cavity of handle 21 in the cavity that the far-end of the second push-pull bar 2222 is embedded in handle 21, can slide in the cavity of handle 21 in the cavity that the far-end of the first described push-pull bar 2221 is also embedded in handle 21.Described second pre-bend pipe 242 is assemblied in the second push-pull bar 2222 far-end, and the described first pre-bend pipe 241 is assemblied in the first push-pull bar 2221 far-end, and the first pre-bend pipe 241 is through the inside of the second pre-bend pipe 242.The internal run-through of the described pre-bend pipe of the first drawing handle 2210, second drawing handle 2220, first 241 and the second pre-bend pipe 242 all parts forms indwelling device passage 26.Described locking sleeve 25 is socketed on the outside of the first drawing handle 2210 near-end.
Please refer to Fig. 8, Fig. 8 is the first push-pull bar and the second push-pull bar structural representation in embodiment 2.The second described push-pull bar 2222 is positioned at the top of the first push-pull bar 2221 far-end, and the two slot type is chimeric can relative to each other slide, and the merging of the contact site of the second push-pull bar 2222 and the first push-pull bar 2221 is reserved with indwelling device passage 26.The first described push-pull bar 2221 near-end is provided with four jaws 2224; Described jaw 2224 inwall is arc; Four jaw 2224 outer walls are provided with external screw thread 2225.
With embodiment 1, when four jaws 2224 are incorporated in one, proximally diminish gradually to far-end its week footpath.Described locking sleeve 25 is placed on the outside of four jaws 2224, and the inwall Zhou Jing of locking sleeve 25 proximally also diminishes gradually to far-end, and the inwall of locking sleeve 25 is provided with female thread 252.Described female thread 252 and external screw thread 2225 cooperatively interact, and make locking sleeve 25 can at the first push-pull bar 2221 near-end axial-rotation.
Please refer to Fig. 9, Fig. 9 is the fixation principle figure of the first drawing handle in embodiment 2.The inwall of described handle 21 near-end is provided with groove 211, is fixed with spring 212 bottom described groove 211, and the upper end of described spring 212 is provided with hoodle 213.The outer wall of the first described push-pull bar 2221 far-end is provided with the pit 2223 of axially-aligned.When making it slide in the cavity of handle 21 to the first push-pull bar 2221 force, described hoodle 213 is oppressed to be bounced back in groove 211, when stopping force, under the resilience force of spring 212, described hoodle 213 falls in one of them pit 2223, the first described push-pull bar 2221 is fixed relative to handle 21, and indirectly, the second described push-pull bar 2222 is also fixed.
For above embodiment 1-2, it should be noted that, herein, described " near-end " refers to that the present invention is one end that under surgical state, distance patient is nearer in a state of use, and described " far-end " refers to that the present invention is one end that under surgical state, distance patient is far away in a state of use.Described indwelling device passage 26 for assembling operating theater instruments, as laser fiber, flexible injection pin, flexible surgical scissors, flexible nipper etc.Described pre-bend pipe 24 is by high can the making the material of natural bend in one direction of good bending property, intensity, such as metal knitted pipe, Nitinol light-wall pipe or high molecule plastic etc., preferable alloy braided tube, as SS304, SS316 material, its moment of torsion is about 1:1, transmitting force and good bending property, pre-bend pipe 24 can be single or multiple lift braiding hollow pipe, can be formed by one or more braidings in circle silk, flat filament, other shaped filaments.Described pre-bend pipe 24 is assemblied on the push-pull bar 222 of drawing handle 22, the length that patient can regulate pre-bend pipe 24 to stretch out at action bars 23 far-end by manipulation finger ring 221, because pre-bend pipe 24 itself has bending property, therefore its extension elongation difference then bends to different shapes, is convenient to each position that is enough and focus.Embodiment 2 is provided with two pre-bend pipes 24 be nested, correspondingly be provided with the drawing handle 22 of the pre-bend pipe 24 of manipulation two, so by the extension elongation of the pre-bend pipe 24 of adjustment two, the instrument end that serpentine hyperbolicity is bending can be obtained, end is more flexible, adds the fineness of operation, can realize full angle non-blind area, in addition, more nested pre-bend pipe 24 can also be set to obtain more various instrument end shape.The first push-pull bar 2221 described in embodiment 2 and the second push-pull bar 2222 are fitted together to for slot type, its advantage the mobile of the two can be demarcated point-blank, the shape of the first pre-bend pipe 241 and the second pre-bend pipe 242 can be controlled more accurately, and when can ensure that one of them push-pull bar is locked, another push-pull bar is also locked indirectly.Groove 211 on described handle 21, spring 212, hoodle 213 match with the pit 2223 of push-pull bar 222 can lock drawing handle 22, thus the shape of fixing pre-bend pipe 24, this kind of lock mode operation is very easy.Described push-pull bar 222 near-end is designed with jaw 2224, and jaw 2224 coordinates indwelling device can be locked with locking sleeve 25, and this kind of locking mode operation is also very easy.Described swing handle 251 is conveniently rotational lock sleeves 25.Described action bars 23 can be flexible.
For per urethra approach non-Myometrial involvement tumor of bladder intracavity operation, laser fiber or other operating theater instruments is inserted in the indwelling device passage 26 that the present invention has the bendable end operating theater instruments of pre-bend pipe structure, operating theater instruments is locked by rotational lock sleeve 25, action bars 23 is inserted until bladder through endoscopic working channel, then hand-held handle 21, finger control finger ring 221, by push-and-pull to control the extension elongation of pre-bend pipe 24 relative to action bars 23, until pre-bend pipe 24 possesses suitable shape that is enough and focus, stop push-and-pull, now hoodle 213 falls into pit 2223, drawing handle 22 is locked, carry out operation technique.The bendable end operating theater instruments that the present invention has pre-bend pipe structure is meticulousr compared to existing surgical instrument operation, full angle non-blind area, therefore excise more thoroughly, be convenient to grasp the excision degree of depth, operate hommization more, can surgical effect be significantly improved, alleviate patient's workload.
The present invention can also be used for the resection operation of other urothelial tumors, as the disease such as carcinoma of ureter, carcinoma of renal pelvis, only needs the operating theater instruments making corresponding size according to application site difference.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the inventive method; can also make some improvement and supplement, these improve and supplement and also should be considered as protection scope of the present invention.