CN202821517U - Handle operating portion and medical equipment - Google Patents
Handle operating portion and medical equipment Download PDFInfo
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- CN202821517U CN202821517U CN201220448753.5U CN201220448753U CN202821517U CN 202821517 U CN202821517 U CN 202821517U CN 201220448753 U CN201220448753 U CN 201220448753U CN 202821517 U CN202821517 U CN 202821517U
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Abstract
The utility model discloses a handle operating portion. A front handle is hinged on a back handle and capable of being reset elastically through a reciprocating spring. A spindle is arranged on the back handle in a penetrating mode. The spindle inside the back handle is sequentially empty sleeved and abutted against a spring A, a front stopping block, a spring B, a slide block, a spring C, a back stopping block and a spring D from front to back. The front stopping block and the back stopping block are in clearance fit with the spindle and capable of being inclined front and back. One end of the front stopping block can be abutted against the front handle so that the front stopping block can rotate and incline under driving of the front handle. The slide block is toggled to be moved and positioned front and back by a front-back switch arranged on the back handle. One end of the back stopping block can limit in fit with a positioning block arranged inside the back handle so that the back stopping block can only rotate and incline. The utility model further discloses medical equipment using the handle operating portion. Due to the technical scheme, the handle operating portion is reasonable in structure, reliable in motion and convenient to operate.
Description
Technical field
This utility model belongs to medical instruments field, particularly relates to a kind of lever operated section for the steel wire rope in the sheath pipe is implemented tractive, and this lever operated section especially is suitable for calculi breaking device, also is suitable for the medical apparatus and instruments that the similar traction of having of other needs.
Background technology
At present, calculus is more common in the calculus of accidentally swallowing and not allowing digestible food to form in the digestive tract, calculus is commonly encountered diseases, frequently-occurring disease clinically, common have empty stomach to eat dried persimmon, Fructus Crataegi etc., another kind of is the calculus that foreign body forms of swallowing, use following method and apparatus that calculus is carried out rubble, namely Drug therapy, surgical operation, rubble apparatus and endoscope are used in combination, and by various means the calculus in the digestive tract are carried out rubble.
In the prior art, use following method and calculi breaking device, so that calculus is carried out rubble:
1, Drug therapy is selected Chinese and western drugs, to change the environment around patient's calculus, make calculus soft, dissolve, diminish, improve digestive tract function, promote its Natural excrement.The traditional Chinese medical herbal treatment calculus is one of traditional medical treatment method of China, and the traditional Chinese medical science thinks that the gastrolith pathogenesis belongs to accumulation of food in the stomach and intes tine due to indigestion, pents up in feeding, thus with removing food stagnancyization stagnate, the method for hard masses softening and resolving, stomach function regulating key spleen, promoting flow of QI and blood.But the internal medicine treatment curative effect is slow, and effect is not thorough.
2, surgical operation is got stone, its shortcoming be need anesthesia, open abdomen, wound face is large, dangerous in the operation, postoperative infects easily, the course of disease is long, expense is high, treatment convalescent period is long, patient misery.
3, rubble apparatus and endoscope are used in combination, and get stone, rubble.
Publication number is that the patent documentation of US6673080B2 discloses a kind of rubble apparatus, a snare that is limited shape and size is installed on sheath pipe top, its snare is to have two steel wire rope one ends to be fixed by end cap, other end connected tube and pull rope are fixed, two steel wire ropes can not shrink separately or stretch out by governor motion, the calculus that meets its shape size is shredded, and there is not scale mark to be unfavorable for that the doctor judges that to the initial stage of calculus lever operated safety simple in structure descends on the snare.
Publication number is that the patent documentation of US2008/0009884A1 discloses a kind of rubble apparatus, thereby its medium stone position is fixed by many steel wire rope two ends and forms the three-dimensional snare of a rule, wherein the interval is very little between steel wire rope and the steel wire rope, be unfavorable for that calculus is embedded, for inapplicable than maximum size, versatility and practicality are not strong, because it is comprised of multistrand rope, when lever operated is exerted oneself to it, the stressed relative dispersion of calculus, be not suitable for the larger calculus of hardness and its rubble part are fixed on lever operated section by pull rope, it is poor to change interchangeability.In addition, the steel wire rope two ends are fixed, and can not shrink separately or stretch out by governor motion, and the calculus that meets its shape size is shredded, and there is not scale mark to be unfavorable for that the doctor judges that to the initial stage of calculus lever operated safety simple in structure descends on the snare.
China Patent No. is ZL99256593.6, ZL200520008785.3, disclosed rubble apparatus in the patent documentation of ZL96235756.1, the surface structure that only has a cardinal principle more, rubble snare and hand rotation section, in the calculi breaking device of clinical use, usually be convenient to take out or get rid of external in order reliably calculus to be gone to sticks and staves, set up a pulling structure in lever operated part, when beginning to tighten snare, need one of doctor to hold shelf, another hands turning handle, at this moment how in bond the doctor's two handss are, when needs are adjusted scope, needs other people auxiliary, be unfavorable for like this concordance of moving, strengthened medical-risk, and lever operated part-structure is simple and easy, security performance descends greatly, cause easily this device to scrap, cause the operating time of waste or delay doctor preciousness.In addition, the rubble snare also can not be adjusted, and does not also have scale mark.
When actual clinical is used, because the calculus shape that human body difference exists and size are different, add the normal creepage of gastrointestinal functions of body cavities, when using snare to extract calculus, with calculus slippage to be shredded, need this moment constantly to adjust and again open snare easily, again carry out rubble; In addition, from lithotrity effect, for the microlith rubble, the snare that usage comparison is little is proper; For calculus rubble larger and in irregular shape, need larger snare or again adjust the cutting that the snare shape remains calculus, so just can reach thorough rubble; Therefore, if snare is selected unsuitable rubble, then do not have the purpose of rubble.During clinical use, the operation doctor is auxiliary lower the endoscope visual field, can judge at first whether snare is extracted calculus, then just can shrink snare.But, the calculi breaking device in the above-mentioned patent documentation, thus perhaps because snare is too little or the general size of calculus be difficult to is judged be difficult to extract too greatly, perhaps because cut after for the first time chopping residue calculus when reusing originally snare improper.Like this when finding clinically to extract the object calculus when improper, the rubble apparatus can only be withdrawed from or is not stopped to change until suitable the time of so just having caused the processing of waste or delay doctor preciousness.And, the calculi breaking device in the above-mentioned patent documentation, its snare part does not cause doctor's the large even error of preliminary error in judgement easily with scale mark; Some is subject to the restriction of handle arrangement, supporting construction, inevitably can cause the handle junction fracture in some maximum size situation of chopping, causes easily the damage of pincers road and body cavities; These rubble apparatuses all are that disposable more change steel rope reuses, and cause the patient cost to rise, and increase patient's burden.
For this reason, the inventor has designed a kind of calculi breaking device, and snare shape, size are carried out accurately to be fit to the calculus shape, rubble fast and repeatedly thereby can regulate.This utility model relates to lever operated section wherein.
Summary of the invention
In order to solve above-mentioned technical problem, one of the purpose of this utility model provides a kind of lever operated section, be used for the steel wire rope in the sheath pipe (perhaps other medical apparatus and instruments have the occasion that similar traction needs) is implemented tractive, rational in infrastructure, reliable in action, easy to operate.
Two of the purpose of this utility model provides a kind of medical apparatus and instruments that uses above-mentioned lever operated section.
To achieve the above object, this utility model has adopted following technical scheme:
A kind of lever operated section, comprise front hand grip, back handle, main shaft, spring A, the front position-arresting piece, spring B, sliding shoe, spring C, the rear position-arresting piece, spring D, front-rear switch and locating piece, front hand grip is hinged on the back handle and by reciprocal spring and resets, main shaft is located on the back handle, empty set spring A successively from front to back on the main shaft in the back handle, the front position-arresting piece, spring B, sliding shoe, spring C, rear position-arresting piece and spring D, the front position-arresting piece, thereby the rear position-arresting piece all cooperates with gap of main reinforcement and can tilt forward and back, inwall offsets before spring A front end and the back handle, spring A rear end and front position-arresting piece offset, thereby an end of front position-arresting piece can rotate inclination with the front hand grip front position-arresting piece that offsets under the drive of front hand grip, spring B front end and front position-arresting piece offset, spring B rear end and sliding shoe offset, sliding shoe is stirred and is moved forward and backward and locate by being installed in front-rear switch on the back handle, spring C front end and sliding shoe offset, spring C rear end and rear position-arresting piece offset, thereby the rear position-arresting piece one end locating piece interior with being installed in back handle cooperates spacing rear position-arresting piece only can rotate inclination, spring D front end and rear position-arresting piece offset, and inwall offsets behind spring D rear end and the back handle.
Like this, because an end of front position-arresting piece is subjected to front hand grip spacing, one end of rear position-arresting piece is subjected to back handle spacing (passing through locating piece), so, when the mobile sliding shoe in front and back, front position-arresting piece and rear position-arresting piece are subjected to the both sides spring action and produce inclination, when they tilt to the main shaft applying and are endowed further slope trend, main shaft can only move along the direction that discharges their slope trends, forms like this detent mechanism of unidirectional cutoff; When front hand grip is rotated, driving the front position-arresting piece rotates, when current stop block tilts to and fits with main shaft, further holding front hand grip, will to drive main shaft mobile together again, in like manner when front hand grip resets, if the front position-arresting piece has tilted to main shaft and fitted, then spring force further acts on and can move together by the drive main shaft.Detailed process is as follows: when sliding shoe mediates the equilbrium position, front position-arresting piece and rear position-arresting piece vertically do not tilt, and under this state, can slightly stir main shaft in front and back although hold front hand grip, but because there is not unidirectional cutoff mechanism, so main shaft can't move forward or backward; Sliding shoe is backward during running fix, the rear position-arresting piece is because the lower end is spacing and both sides spring action force unbalance, recede and fit with main shaft so produce, under this state, main shaft can only move forward and can't move backward with respect to back handle, when holding front hand grip, the front position-arresting piece produces to be tilted forward to main shaft with both sides spring action force unbalance because upper rear end is spacing and fits, further rotate front hand grip, then the front position-arresting piece is endowed the trend that further turns forward and move, thereby driving main shaft moves forward together, be that main shaft moves forward with respect to back handle, front hand grip is held and is unclamped afterwards on earth when resetting, and the slope trend of front position-arresting piece is released, the front position-arresting piece vertically and simultaneously with respect to back handle return backward, is so repeatedly held front hand grip and just can constantly be moved forward main shaft; When sliding shoe moves forward the location, the rear position-arresting piece is (also can turn forward) vertically, the front position-arresting piece is because lower front end is spacing and both sides spring action force unbalance, turn forward and fit with main shaft so produce, under this state, main shaft can only move backward and can't move forward with respect to the front position-arresting piece, when being in one's hands so moving front hand grip, front hand grip drives the front position-arresting piece and moves backward with respect to back handle, it is mobile backward with respect to back handle together that the front position-arresting piece drives main shaft, front hand grip is held on earth and is unclamped afterwards when resetting, front position-arresting piece slope trend is released, the front position-arresting piece is with respect to main shaft and back handle reach return, so repeatedly hold front hand grip just can be constantly mobile main shaft backward.
According to practical situation, the sheath pipe can be fixed on the main shaft, steel wire rope in the sheath pipe is fixedly mounted on the back handle, also both can be exchanged installation, then select and hold front hand grip control main shaft and back handle by front-rear switch and produce and relatively move, so that steel wire rope moves forward or backward in the sheath pipe.As preferably, described front-end of spindle is provided with the fixedly holder of sheath pipe, and described back handle is fixedly installed the steel wire rope in the sheath pipe.
As preferably, described front-rear switch is fixedly connected with rotating the fixed bar that is arranged on the back handle, fixedly mounts swivel becket on the fixed bar, and the alignment pin on swivel becket is provided with positioning runner and is located at sliding shoe matches.Simple in structure like this, easy for installation, use reliable.
As preferably, described main shaft is the flat pole with upper lower plane, and described sliding shoe has the flat circular hole that is complementary with the main shaft cross section, and described front position-arresting piece and rear position-arresting piece all have circular hole.Be convenient to like this cooperate and move.
As preferably, described locating piece is installed in the back handle by steady pin, and locating piece is provided with the spacing dovetail groove that matches with an end of rear position-arresting piece, and the stringcourse angle of inclination, the left and right sides of dovetail groove is 15～25 degree.Simple in structure, cooperation makes things convenient for, uses reliable.
As preferably, described sheath pipe is made of the sheathed bourdon tube in lubrication management outside, and lubrication management is the continuous tubular structure of flexible inner surface, and bourdon tube is that the flat wire compact winding forms.
As preferably, described holder comprises reinforcing ring, fixed block and handle switch, fixed block is provided with circular hole and connects vertically the groove of circular hole, reinforcing ring is installed in the circular hole, one end of reinforcing ring and the bottom stage of circular hole offset, reinforcing ring is fixedly connected with the near-end of described sheath pipe, thereby the two side arms of groove is threaded and can be fixedly clamped or loosens reinforcing ring on handle switch and the fixed block.Use reinforcing ring assurance bearing strength and avoid the distortion of bourdon tube near-end.
A kind of medical apparatus and instruments comprises aforesaid a kind of lever operated section.
This utility model has been owing to adopted above technical scheme, selects and holds front hand grip control main shaft and back handle by front-rear switch and produce and relatively move, so that steel wire rope and the generation of sheath pipe fixed respectively on both relatively move.Main shaft and back handle can be selectively forward or mobile backward, and also can the fast moving adjustment, have rational in infrastructure, reliable in action, easy to operate, the scope of application wide, easy characteristics such as low, the good looking appearance of replacement cost.This utility model especially is suitable for the be trapped traction of steel wire rope of calculi breaking device, is suitable for too the medical apparatus and instruments that the similar traction of having of other needs.
Description of drawings
Fig. 1 represents the structural representation (overlooking) of calculi breaking device;
Fig. 2 represents the structural representation (side-looking) of calculi breaking device;
Fig. 3 represents that snare stretches into the sketch map of epitheca pipe;
Fig. 4 represents that snare stretches out the sketch map of epitheca pipe;
Fig. 5 represents the structural representation that embodiment 1 is trapped;
Fig. 6 represents the structural representation of end cap among the embodiment 1;
Fig. 7 represents the structural representation of embodiment 1 mesotheca pipe;
Fig. 8 represents the structural representation of front end sleeve pipe among the embodiment 1;
Fig. 9 represents the structural representation of lubrication management among the embodiment 1;
Figure 10 represents the structural representation of holder among the embodiment 1;
Figure 11 represents the structural representation of fixed block among the embodiment 1;
Figure 12 represents the structural representation of switch knob among the embodiment 1;
Figure 13 represents the structural representation of reinforcing ring among the embodiment 1;
Figure 14 represents the structural representation of embodiment 1 left adjusting sliding part;
Figure 15 represents the structural representation of embodiment 1 right adjusting sliding part;
Figure 16 represents the structural representation of embodiment 1 left sliding tube;
Figure 17 represents the structural representation of embodiment 1 right sliding tube;
Figure 18 represents the structural representation of solid shafting among the embodiment 1;
Figure 19 represents the structural representation of embodiment 1 left orbitron;
Figure 20 represents the structural representation of embodiment 1 right orbitron;
Figure 21 represents the structural representation of lever operated section among the embodiment 1;
Figure 22 represents the inner body mechanical connection sketch map of lever operated section among the embodiment 1;
Figure 23 represents the sketch map that lever operated section moves backward among the embodiment 1;
Figure 24 represents the sketch map that lever operated section moves among the embodiment 1 forward;
Figure 25 represents operation chart of the present utility model (snare retraction epitheca pipe);
Figure 26 represents operation chart of the present utility model (snare stretches out the epitheca pipe);
Figure 27 represents operation chart of the present utility model (regulate steel cable and change the snare shape);
Figure 28 represents operation chart of the present utility model (regulate two steel wire ropes and change the snare shape);
Figure 29 represents operation chart of the present utility model (snare is tightened up);
Figure 30 represents operation chart of the present utility model (continuing cutting after adjusting the snare shape);
Figure 31 represents the second embodiment sketch map of this utility model end cap;
Figure 32 represents the third embodiment sketch map of this utility model end cap;
Figure 33 represents the second embodiment sketch map of this utility model front end sleeve pipe;
Figure 34 represents the second embodiment sketch map of this utility model holder;
Figure 35 represents the second embodiment sketch map that this utility model solid shafting is connected with steel wire rope;
Figure 36 represents the second embodiment sketch map of this utility model sliding tube.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is made a detailed explanation.
Embodiment 1:
A kind of medical apparatus and instruments as shown in Figure 1 and Figure 2 is calculi breaking device, comprises snare 100, sheath pipe 200, holder 300, regulates sliding part and lever operated 600; Described snare 100 is formed by two steel wire ropes 130,140 far-ends that stretch out sheath pipe 200, two steel wire ropes 130, an end of 140 are fixedly connected with by end cap 110, two steel wire ropes 130,140 the other end from the far-end of sheath pipe 200 be through to near-end and with regulate sliding part and be connected; The near-end of described sheath pipe 200 is fixed on the holder 300, and holder 300 is slidingly connected with lever operated 600 and can moves forward and backward under lever operated 600 driving, regulates sliding part and is installed on lever operated 600; Described adjusting sliding part comprises right adjusting sliding part 400 and left adjusting sliding part 500: right adjusting sliding part 400 comprises the right orbitron 470 that is fixed on lever operated 600, right sliding tube 440 is installed on the right orbitron 470, right sliding tube 440 is slidingly connected and is locked by locking member with right orbitron 470, fix right solid shafting 420 on the right sliding tube 440, the steel cable 130 in right solid shafting 420 and the sheath pipe 200 is fixedly connected with; Left adjusting sliding part 500 comprises the left orbitron 570 that is fixed on lever operated 600, left sliding tube 540 is installed on the left orbitron 570, left sliding tube 540 is slidingly connected and is locked by locking member with left orbitron 570, left sliding tube 540 fixing left solid shaftings 520, left solid shafting 520 and sheath pipe 200 another interior root steel wire ropes 140 are fixedly connected with.
Described right solid shafting 420 is fixedly connected with by the steel cable 130 in right connection tube 410 and the sheath pipe 200; Described left solid shafting 520 is fixedly connected with by another root steel wire rope 140 in left connection tube 510 and the sheath pipe 200.Described right sliding tube 440 moves axially in the pore of right orbitron 470 and is locked by right set bolt 450, be fixedly connected with in the centre bore of the right sliding tube 440 of right solid shafting 420 insertions and by right fastening bolt 460, described right orbitron 470 is provided with can be for the rail groove of right set bolt 450 and right fastening bolt 460 guiding movements; Described left sliding tube 540 moves axially in the pore of left orbitron 570 and is locked by left set bolt 550, be fixedly connected with in the centre bore of the left sliding tube 540 of left solid shafting 520 insertions and by left fastening bolt 560, described left orbitron 570 is provided with can be for the rail groove of left set bolt 550 and left fastening bolt 560 guiding movements.All be formed with scale mark 120 on two steel wire ropes 130,140 of described snare 100.Described sheath pipe 200 is made of the sheathed bourdon tube 220 in lubrication management 230 outsides, lubrication management 230 is the continuous tubular structure of flexible inner surface, bourdon tube 220 forms for the flat wire compact winding, and the far-end of bourdon tube 220 is fixed a front end sleeve pipe 210 that can tighten up snare 100.Described holder 300 comprises reinforcing ring 310, fixed block 320 and handle switch 330, fixed block 320 is provided with circular hole 323 and connects vertically the groove 321 of circular hole 323, circular hole 323 interior installation reinforcing rings 310, one end of reinforcing ring 310 and the bottom stage of circular hole 323 offset, reinforcing ring 310 is fixedly connected with the near-end of described sheath pipe 200, thereby the two side arms of groove 321 is threaded and can be fixedly clamped or loosens reinforcing ring 310 on handle switch 330 and the fixed block 320.
Described lever operated 600 comprises front hand grip 610, back handle 620, main shaft 640, spring A601, front position-arresting piece 608, spring B 602, sliding shoe 609, spring C604, rear position-arresting piece 605, spring D606, front-rear switch 650 and locating piece 607, described holder 300 is fixed on main shaft 640 front ends, described right orbitron 470 and left orbitron 570 are fixed on the back handle 620, front hand grip 610 is hinged on the back handle 620 and passes through reciprocal spring 613 elastic resets, main shaft 640 is located on the back handle 620, empty set spring A601 successively from front to back on the main shaft 640 in the back handle 620, front position-arresting piece 608, spring B 602, sliding shoe 609, spring C604, rear position-arresting piece 605 and spring D606, front position-arresting piece 608, thereby rear position-arresting piece 605 all can tilt forward and back with main shaft 640 matched in clearance, spring A601 front end and back handle 620 front inwalls offset, spring A601 rear end and front position-arresting piece 608 offset, thereby the upper rear end of front position-arresting piece 608 and lower front end can rotate inclination with the front hand grip 610 front position-arresting piece 608 that offsets under the drive of front hand grip 610, spring B 602 front ends and front position-arresting piece 608 offset, spring B 602 rear ends and sliding shoe 609 offset, sliding shoe 609 is stirred and is moved forward and backward and locate by being installed in front-rear switch 650 on the back handle 620, spring C604 front end and sliding shoe 609 offset, spring C604 rear end and rear position-arresting piece 605 offset, thereby rear position-arresting piece 605 lower ends cooperate spacing rear position-arresting piece 605 only can rotate inclination with locating piece 607 in being installed in back handle 620, spring D606 front end and rear position-arresting piece 605 offset, and spring D606 rear end and back handle 620 rear inwalls offset.Described front-rear switch 650 is fixedly connected with rotating the fixed bar 611 that is arranged on the back handle 620, fixed installation swivel becket 603 on the fixed bar 611, and the alignment pin on swivel becket 603 is provided with positioning runner and is located at sliding shoe 609 matches.Described main shaft 640 is for having the flat pole of upper lower plane, and described sliding shoe 609 has the flat circular hole that is complementary with main shaft 640 cross sections, and described front position-arresting piece 608 and rear position-arresting piece 605 all have circular hole.Described locating piece 607 is installed in the back handle 620 by steady pin 612, and locating piece 607 is provided with the spacing dovetail groove that matches with an end of rear position-arresting piece 605, and the stringcourse angle of inclination, the left and right sides of dovetail groove is 15～25 degree.
Describe below with reference to Fig. 3～Fig. 4, steel wire rope 130,140 can open after stretching out sheath pipe 200 and become snare 100, can be by in the retraction sheath pipe 200 freely after snare 100 closures, described snare 100 has two steel wire ropes 130, an end of 140 to be welded together by end cap 110, form a rule or irregularly shaped by stretching out sheath pipe 200, described end cap 110 1 ends have the smooth fillet of pouring into, are convenient to reduce the mill sassafras in tract, and the other end has counterbore to be convenient to fixedly steel wire rope 130,140; Described steel wire rope 130,140 forward part should have brightly painted scale mark 120, two steel wire ropes 130,140 afterbodys are respectively by connection tube 410,510 with solid shafting 420,520 connect, be contracted in the hole of the lubrication management 230 that roughly becomes tubular structure, when snare 100 is tightened up, steel wire rope 130,140 are straightened gradually, the calculus power that is squeezed passes to front end 210 to power, described front end sleeve pipe 210 is connected in bourdon tube 220, when tightening up as the strong point, under lever operated 600 front hand grip 610 is held, drive steel wire rope 130,140 are shredded calculus by retraction sheath pipe 220 smoothly.Again adjust snare 100 shapes and size, can carry out next step rubble.
Below with reference to Fig. 5～Fig. 8, the structure of snare 100 is described, snare described in the present embodiment 100 is comprised of steel wire rope 130,140, end cap 110, scale mark 120, and steel wire rope 130,140 is used for calculus is shredded; End cap 110 is used for fixing two steel wire ropes 130, an end of 140 to be made it can form snare 100 to be used for extracting the chopping calculus, described scale mark 120 is printed on two steel wire ropes 130,140, be used for to judge the size of calculus, so as can to regulate steel wire rope 130,140 length form a suitable snare 100 and extract calculus; Steel wire rope 130,140 is to have multiply monomer steel wire mutually to be entwined substantially, and its material is the metal rustless steel and meets medically, forms snare 100 when it stretches out sheath pipe 200; Gapped between end cap 110 Lower Halves 113 and front end 210 endoporus 215, snare 100 is when the cutting calculus, end cap 110 and steel wire rope 130,140 weld 150, front end sleeve pipe 210 are subject to the extruding force that rubble produces, steel wire rope 130,140 constantly embeds calculus, when the Lower Half 113 of end cap 110 stretches in the front end sleeve pipe 210, when calculus was cut open fully, the step place 112 of end cap 110 propped up the end face 214 of front end sleeve pipe 210; Scale mark 120 by medical ink printing about on two steel wire ropes 130,140, length is consistent, bright-coloredly sees that clearly the doctor can be used for tentatively judging the calculus size in that Microendoscopic is enough; The parts of described snare 100 are made by the rustless steel that can satisfy corresponding biocompatibility and printing ink.
Below with reference to Fig. 7～Fig. 9, the structure of sheath pipe 200 is described,
Front end sleeve pipe 210 roughly becomes tubular, which is provided with inner via hole 215, chamfering transition part 212, " U " groove 213, end face 214, connect rear end face 211, bourdon tube 220 and front end 210 are connected by laser weld, being inserted in the bourdon tube endoporus 313 of lubrication management 230, and rely on flared end 250 to prop up the spring tail end, described flared end 250 needs should be greater than bourdon tube 220 endoporus internal diameters by its external diameter of thermoplastic shaping, and lubrication management 230 endoporus inner spaces allow described two steel wire ropes 130,140 to move freely simultaneously.
Below with reference to Figure 10 to Figure 13, the structure of holder 300 is described, this mechanism mainly is made of groove 321, screwed hole 322, round hole part 323, bellmouth orifice 326, counterbore 325, pin-and-hole 324, handle switch 330 and the reinforcing ring 310 of fixed block 320.Holder 300 connecting utricle pipes 200 and lever operated 600 effect of in whole rubble apparatus, playing the strong point, wherein reinforcing ring 310 is fixed on bourdon tube 220 on the fixed block 320, handle switch 330 can repeat to open replacing reinforcing ring 310, fixed block 320 links to each other with lever operated 600 by main shaft 640, mobile sliding tube 440,540 push away relatively, roping is moving, make steel wire rope 130,140 relative sheath pipes 200 are done and are pushed away, roping is moving, 320 main bodys of fixed block described in the present embodiment are metal processing piece, mid portion should have the through hole that runs through, and reinforcing ring 310 is the ducted body tube-like piece; Described round hole part 323 is used for socket reinforcing ring 310 passes screwed hole 322 control flumes 321 gaps by handle switch 330 size, can be relaxed or fastening, bourdon tube 220 is fixed on the fixed block 320 when fastened, and steel wire rope 130,140 can pass bellmouth orifice 326 its effects that have easy importing and reduce friction; Main shaft 640 1 ends stretch into that counterbore 325 is interior to be passed pin-and-hole 324 with steady pin main shaft 640 and fixed block 320 are interfixed, they are limited in axial motion, fixed block 320 and main shaft 640 relative transfixions when moving backward for lever operated 600, steel wire rope 130,140 moves relative to holder 300 backward, finishes the rubble action.
Below with reference to Figure 14 to Figure 20, to regulating sliding part 400,500 structure describes, snare 100 size and shapes mainly work to regulate in this mechanism, it is by two connection tubes 410,510, two solid shaftings 420,520 and on reducing section 421, depressed part 422, stress surface 423, two flexible pipes 430,530, two fastening bolts 460,560, two set bolts 450,550, two sliding tubes 440,540 and on counterbore 441,541, centre bore 442,542, binding thread 443,543, retaining thread 444,544, two orbitrons 470,570 and on reducing section 471,571, rail groove 472,572, fastening bolt via hole 473,573, set bolt via hole 474,574 consist of, it is fixed on left-right symmetric on the back handle 620, connection tube is used for connecting solid shafting and steel wire rope, the fastened bolt-locking of solid shafting is on sliding tube, when needs are adjusted snare length and shape, sliding tube axially moves in orbitron, adjust to suitable position and fix by set bolt, can tighten up the snare rubble by lever operated; In the present embodiment, two connection tubes 410,510 endoporus link together two steel wire ropes 130, an end of 140 and the reducing section of two solid shaftings respectively, fastening bolt passes bolt through-hole when mounted, solid shafting passes centre bore and relies on binding thread that the depressed part of solid shafting and sliding tube are connected as a single entity, stress surface can support solid shafting to the pulling force of sliding tube, thereby keeps relatively static; Orbitron utilizes its reducing section to stretch in the installing hole of back handle 620 and is fixed on lever operated 600, set bolt passes the set bolt via hole and relies on retaining thread sliding tube to be fixed on certain position of orbitron, when needs are adjusted snare 100, unclamp set bolt, sliding tube can be along moving axially in orbitron, rail groove is used for avoiding bolt, steel wire rope is along with moving axially, can control snare 100 shrinks and stretches out, regulating sliding part should have two covers, and their left-right symmetric are convenient to regulate two steel wire ropes 130,140.
Below with reference to Figure 21 and Figure 24, structure to the handle operating portion describes, this mechanism has mainly that control snare 100 opens, the closed and effect adjusted, mainly by back handle 620, front hand grip 610, main shaft 640, spring A601, front position-arresting piece 608, spring B 602, sliding shoe 609, spring C604, rear position-arresting piece 605, spring D606, front-rear switch 650, fixed bar 611, swivel becket 603, locating piece 607, steady pin 612, back and forth spring 613 forms; Lever operated 600, as portion of the handle, integrate to regulate sliding tube and holder, thereby control the opening of snare, closure and rubble by pushing away, draw solid shafting that power is passed to steel wire rope; Described lever operated section has front hand grip and the back handle that suitable human body palm holds, be equipped with the mechanism of self-locking device and the power of transmission in it, holding front hand grip slides it before and after axis direction, push away for steel wire rope and holder are done, when roping is moving, it is relatively motionless that holder keeps, and is provided with pin-and-hole in the front portion of main shaft and is used for fixing.In the present embodiment, but back handle 620 has secured adjusted sliding part 400,500 circular hole as whole lever operated 600 main body top, and its inside is mainly cavity and pin-and-hole, is used for fixing and the protection inner body; Front hand grip 610 profiles meet simulation of human body to be learned, be convenient to hold and stressed its inside, top have " L " type groove be convenient to front position-arresting piece 608 from vertical state backward with turn forward; Main shaft 640 becomes the flat pole substantially, and principal character is that two parallel surfaces are convenient to front position-arresting piece 608, rear position-arresting piece 605 blocks and runs through whole lever operated 600, can keep the axis direction motion when seesawing; Running through main shaft 640 is equipped with successively from front to back wire diameter and has a circular hole, wire diameter to be " d4 " spring 606 for " d3 " spring C604, rear position-arresting piece 605 in the middle of it for " d2 " spring B 602, sliding shoe 609 circular hole bottom characteristic circle of position posts in the middle of it, wire diameter for " d1 " spring A601, front position-arresting piece 608, wire diameter; Described front position-arresting piece 608 is for there being a circular hole to be convenient to block main shaft 640 when stressed in the middle of the sheet metal spare, it is fixed in front hand grip 610 " L " the type groove relatively; Described rear position-arresting piece 605 is that its effect of " 7 " font is similar with front position-arresting piece 608, and relatively is fixed in locating piece 607 dovetail grooves; Described locating piece 607 roughly becomes cuboid, and it is fixed on back handle 620 intracavity by steady pin 612, and the angle that tilts of its dovetail groove is roughly 20 degree, and it is too large to be unlikely to beat; Front-rear switch 650 is by fixed bar 611 connection of rotating rings 603, and the rotation of control swivel becket 603; Described fixed bar 611 is used for fixing for two tops of round metal bars are provided with pin-and-hole; Described swivel becket 603 is round plastic spare, and mid portion has the track of slip; It is cylinder that main shaft 640 bottom characteristic are run through in described sliding shoe 609 its upper ends, and its track impels sliding shoe 609 to seesaw along main shaft 640 when swivel becket 603 rotations positive and negative 90 are spent, thereby extrusion spring forms the trend that seesaws.
During lever operated use, main shaft 640 and upper fixed seat 300 thereof are fixed, rotate front-rear switch 650 and can stir sliding shoe 609, when sliding shoe mediates, front position-arresting piece 608 and rear position-arresting piece 605 vertically do not tilt, and under this state, can slightly swing front and back although hold 610 lever operated of front hand grip, but because there is not unidirectional cutoff mechanism, so can't move forward or backward; As shown in figure 23, sliding shoe 609 is backward during running fix, rear position-arresting piece 605 is because the lower end is spacing and both sides spring action force unbalance, recede and fit with main shaft 640 so produce, under this state, back handle 620 can only be mobile and can't move forward (arrow is lever operated moving direction) backward with respect to main shaft 640, when holding front hand grip 610, front position-arresting piece 608 produces with both sides spring action force unbalance because upper rear end is spacing and is tilted forward to and main shaft 640 applyings, further rotate front hand grip 610, then front position-arresting piece 608 is endowed the trend that further turns forward and move, thereby drive together relatively reach of main shaft, because main shaft 640 is fixed, so lever operated section moves after with respect to main shaft, front hand grip 610 is held and is unclamped afterwards on earth when resetting, and the slope trend of front position-arresting piece 608 is released, front position-arresting piece 608 vertically with main shaft 640 come off contact and under spring-force driven dual return, so repeatedly hold front hand grip just can be constantly moving handle operating portion backward; As shown in figure 24, when sliding shoe 609 moves forward the location, rear position-arresting piece 605 turns forward, front position-arresting piece 608 is because lower front end is spacing and both sides spring action force unbalance, turn forward and fit with main shaft so produce, when being in one's hands so moving front hand grip, front hand grip 610 drives front position-arresting piece 608 and moves backward with respect to back handle 620, it is mobile backward with respect to back handle together that front position-arresting piece 608 drives main shaft 640, because main shaft 640 is fixed, so lever operated section moves forward with respect to main shaft, front hand grip 610 is held on earth and is unclamped afterwards when resetting, front position-arresting piece 608 slope trends are released, and front position-arresting piece 608 is so repeatedly held front hand grip and just can constantly be moved forward lever operated section with respect to main shaft and back handle reach return.
Below with reference to Figure 25～Figure 30; use procedure to snare 100 describes; spanner 650 arrows are down the time before and after at first rotating; all springs are in original state not to be had compressedly front position-arresting piece 608 and rear position-arresting piece 605 to be in loosen vertical state; lever operated 600 external force applies down; make in the snare 100 complete retraction sheath pipes 200 along backward movement of main shaft 640, the lubrication management 230 of sheath pipe 200 the insides can better be protected steel wire rope 130,140.Snare 100 and sheath pipe 200 be inserted into be transported in the pincers road near the stone location always, when observe calculus " A " particular location at Microendoscopic after, move forward lever operated 600 along main shaft 640, by adjusting steel wire rope 130 under the observation of endoscope, 140 suitable length, its length that can stretch out reaches maximum approximately 20CM, also can be by rotating front-rear switch 650 forwards, hold front hand grip 610 make whole lever operated 600 slowly mobile step by step forward along main shaft 640, can make steel wire rope 130 like this, 140 slowly stretch out sheath pipe 200 forms snare 100, avoid stretching out fast the damage that causes mucous membrane surface, slowly then utilize steel wire rope 130 near calculus " A ", 140 high scale labellings are tentatively judged the size of calculus " A ", then unclamp left set bolt 550 and promote left sliding tube 540, it drives left solid shafting 520 and moves forward, described left solid shafting 520 welds together with connection tube 510, its connection tube 510 is connected with steel wire rope 140 afterbodys, travel forward and begin to form snare 100 at the drive bottom left steel wire rope 140 of left sliding tube 540, slowly adjust snare 100 shapes and calculus " A " is entangled, be in course of adjustment and as far as possible slowly avoid the deface mucous membrane tissue, at this moment mobile left sliding tube 540 backward the mobile snare 100 that tightens up calculus " A " entangled prevent landing, should tighten left set bolt 550 on left orbitron after tightening up, consider that snare 100 shapes chopping calculus " A " at this moment are difficult to firmly, because steel wire rope 130,140 length are inconsistent, so need to adjust right sliding tube 440 right steel wire rope 130 is slowly extended, when about two steel wire ropes 130, when 140 length are basically identical, tighten right set bolt 450 on right orbitron 470, at this moment spanner 650 arrows are backwards the time before and after can turning, drive fixed bar 611 and rotate simultaneously swivel becket 603 90-degree rotations, sliding shoe 609 bottom cylinders are taken exercises along track, it is backward mobile along main shaft 640 to impel sliding shoe 609, Compress Spring C604 and spring D606, thereby rear position-arresting piece 605 is receded by the inverted trapezoidal shape in the locating piece 607, circular hole blocks main shaft 640 in the middle of impelling rear position-arresting piece 605, at this moment holding front hand grip 610 has " L " type groove that front position-arresting piece 608 is turned forward from vertical state in it, circular hole blocks main shaft 640 in the middle of the front position-arresting piece 608, lever operated 600 is moved relative to main shaft 640 in this tilting procedure, repeatedly holding this action drive front position-arresting piece 608 back and forth makes whole handle portion backward mobile step by step along main shaft 640 from the vertical state state of turning forward, can drive like this snare 100 and begin to shrink chopping calculus " A ", crowded thrust from calculus " A " in the tightening process passes to steel wire rope 130,140, steel wire rope 130, prop up front end sleeve pipe 210 during 140 gathering, described front end sleeve pipe 210 is welded on the top of bourdon tube 220, the tail end of bourdon tube is fixed on the holder 300 by reinforcing ring 310, when drawing snare 100 in, sheath pipe 200, holder 300 is with respect to static, hold continuously front hand grip 300 until end cap 110 withstands front end sleeve pipe 210, " A " is chopped into calculus " B " to calculus.Check calculus " B " size by endoscope afterwards, can repeat if necessary previous step and adjust snare to rational size continuation cutting calculus " B ", excrete until got outside the patient body or by body cavities by apparatus gripping rubbles such as the available basket of chopping or foreign body forcepses fully.
Can be as shown in Figure 6 cylinder step (have the nose circle face 111 of the importing of being beneficial to and be used for a fixedly end counterbore 114 of steel wire rope) for the general shape of above-mentioned end cap 110, or circular cone step as shown in figure 31 (have the nose circle face 111b of the importing of being beneficial to and be used for a fixedly end counterbore 113b of steel wire rope), or straight cylinder shown in figure 32 (have the nose circle face 111c of the importing of being beneficial to and be used for a fixedly end counterbore 113c of steel wire rope).
The contour structures of front end sleeve pipe 210 can be cylinder ducted body as shown in Figure 8; end face has zigzag " U " type groove; or front end sleeve pipe as shown in figure 33; the excessive 212b of section of chamfering is 30 degree chamfer bevels; there are fillet and chamfer bevel excessive on the end face 214b; help like this to enter in pincers road or the body cavity and reduce friction, protection scope or surface mucous.
The texture edge of holder 300 has switch knob 330, also can be as shown in figure 34, and the round hole part 323b of its described fixed block 320b of holder increases screwed hole 322b by the side, when needs fixedly can be beneficial to bolt-locking when reinforcing ring 310b; The counterbore 325b that penetrates fixed block 320b when main shaft 640 can pass through bottom thread hole 324b fixedly the time, and the left and right sides is many can to increase screwed hole, respectively from the left side or the right side be screwed into bolted then the steady pin of its effect and above-described embodiment have identical function.
The cylinder that solid shafting 420 can process for a metal substantially, perhaps as shown in figure 35 solid shafting, the depressed part 422b of one end is used for a sliding tube to be fixed, the other end has a counterbore 421b, can insert counterbore to steel wire rope 130 by being welded together, its effect has identical function with the connection tube 410 of the first embodiment, thereby can save the connection tube parts.
Sliding tube 610 structures also can be as shown in figure 36, and described sliding tube main body one end is processed to certain angle of inclination and is approximately 3 degree, surface coverage one circle taper thread 441b, and it is divided into three parts by three interspace 442b; When solid shafting passes sliding tube centre bore alar part 443b, nut 444b can be screwed into the taper thread of sliding tube main body, and it has, and to be screwed into the more long-acting fruit of distance better, and the profile of described nut 444b is cylinder or polygonal body, and endoporus has taper thread 445b.
Compared with prior art, advantage of the present utility model and good effect are: two steel wire rope even scale marks of one end printer belt are also fixed by end cap, the other end by solid shafting respectively with about two sliding tubes be connected, can be in the track pipeline level and smooth advance and retreat, and steel wire rope is shunk repeatedly and form snare, this just offers the doctor has individual initial stage anticipation and the repeatedly rubble of calculus is become possibility, general, the snare of calculi breaking device can open and close at least repeatedly to be adjusted more than five times, be beneficial to extract calculus or reorganize and outfit with only size and shape reuse, reach best lithotrity effect, avoided again sending into new snare owing to unsuitable snare, both alleviated doctor's workload, for the patient gets valuable treatment time, reduce again the operation cost, reduced waste.Simultaneously, this utility model is easy to more change steel rope and handle and reuses and greatly reduce cost and increase economic benefit, has avoided the waste resource and has increased patient's burden.And, because lever operated employing metal processing piece of the present utility model is integrated by mechanical connection, has sound construction and stablize, its adjustment structure is symmetrical, and is even when stressed, avoided the risk of handle breaking releasing in the rubble process.
It is emphasized that: above only is preferred embodiment of the present utility model, is not that this utility model is done any pro forma restriction; This utility model not only is suitable for calculi breaking device, and is suitable for other medical apparatus and instruments that similar traction needs, such as snare, rubble basket, dilating sacculus, biopsy forceps etc.Every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.
Claims (8)
1. lever operated section, it is characterized in that, comprise front hand grip (610), back handle (620), main shaft (640), spring A(601), front position-arresting piece (608), spring B (602), sliding shoe (609), spring C(604), rear position-arresting piece (605), spring D(606), front-rear switch (650) and locating piece (607), front hand grip (610) is hinged on back handle (620) upward and passes through reciprocal spring (613) elastic reset, main shaft (640) is located on the back handle (620), empty set spring A(601 successively from front to back on the main shaft (640) in the back handle (620)), front position-arresting piece (608), spring B (602), sliding shoe (609), spring C(604), rear position-arresting piece (605) and spring D(606), front position-arresting piece (608), rear position-arresting piece (605) all with main shaft (640) thus matched in clearance can tilt forward and back, spring A(601) the front inwall of front end and back handle (620) offsets, spring A(601) rear end and front position-arresting piece (608) offset, one end of front position-arresting piece (608) can be with front hand grip (610) thus the front position-arresting piece (608) that offsets can rotate inclination under the drive of front hand grip (610), spring B (602) front end and front position-arresting piece (608) offset, spring B (602) rear end and sliding shoe (609) offset, sliding shoe (609) is stirred and is moved forward and backward and locate by being installed in front-rear switch (650) on the back handle (620), spring C(604) front end and sliding shoe (609) offset, spring C(604) rear end and rear position-arresting piece (605) offset, rear position-arresting piece (605) one ends be installed in the locating piece (607) in the back handle (620) thus cooperate spacing rear position-arresting piece (605) only can rotate inclination, spring D(606) front end and rear position-arresting piece (605) offset spring D(606) inwall offsets behind rear end and the back handle (620).
2. a kind of lever operated section according to claim 1, it is characterized in that, described front-rear switch (650) is fixedly connected with the fixed bar (611) that rotation is arranged on the back handle (620), the upper fixed installation of fixed bar (611) swivel becket (603), the alignment pin on swivel becket (603) is provided with positioning runner and is located at sliding shoe (609) matches.
3. a kind of lever operated section according to claim 1, it is characterized in that, described main shaft (640) is for having the flat pole of upper lower plane, described sliding shoe (609) has the flat circular hole that is complementary with main shaft (640) cross section, and described front position-arresting piece (608) and rear position-arresting piece (605) all have circular hole.
4. a kind of lever operated section according to claim 1, it is characterized in that, described locating piece (607) is installed in the back handle (620) by steady pin (612), locating piece (607) is provided with the spacing dovetail groove that matches with an end of rear position-arresting piece (605), and the stringcourse angle of inclination, the left and right sides of dovetail groove is 15～25 degree.
5. a kind of lever operated section according to claim 1 is characterized in that, described main shaft (640) front end is provided with the fixedly holder (300) of sheath pipe (200), and described back handle (620) is fixedly installed the steel wire rope in the sheath pipe (200).
6. a kind of lever operated section according to claim 5, it is characterized in that, described sheath pipe (200) is made of lubrication management (230) the sheathed bourdon tube in outside (220), and lubrication management (230) is the continuous tubular structure of flexible inner surface, and bourdon tube (220) forms for the flat wire compact winding.
7. a kind of lever operated section according to claim 5, it is characterized in that, described holder (300) comprises reinforcing ring (310), fixed block (320) and handle switch (330), fixed block (320) is provided with circular hole (323) and connects vertically the groove (321) of circular hole (323), reinforcing ring (310) is installed in the circular hole (323), the bottom stage of one end of reinforcing ring (310) and circular hole (323) offsets, reinforcing ring (310) is fixedly connected with the near-end of described sheath pipe (200), the upper groove (321) of handle switch (330) and fixed block (320) thus two side arms be threaded and can be fixedly clamped or loosen reinforcing ring (310).
8. a medical apparatus and instruments comprises such as each described a kind of lever operated section in the claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220448753.5U CN202821517U (en) | 2012-09-04 | 2012-09-04 | Handle operating portion and medical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220448753.5U CN202821517U (en) | 2012-09-04 | 2012-09-04 | Handle operating portion and medical equipment |
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| Publication Number | Publication Date |
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| CN202821517U true CN202821517U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220448753.5U Expired - Lifetime CN202821517U (en) | 2012-09-04 | 2012-09-04 | Handle operating portion and medical equipment |
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| CN (1) | CN202821517U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104127163A (en) * | 2014-08-22 | 2014-11-05 | 中国人民解放军第三军医大学第二附属医院 | Laparoscope intubator |
| CN108143440A (en) * | 2016-12-02 | 2018-06-12 | 多里瓦·帕罗内托 | Configuration applied to the biopsy device with the reusable trigger for disposable needle |
-
2012
- 2012-09-04 CN CN201220448753.5U patent/CN202821517U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104127163A (en) * | 2014-08-22 | 2014-11-05 | 中国人民解放军第三军医大学第二附属医院 | Laparoscope intubator |
| CN108143440A (en) * | 2016-12-02 | 2018-06-12 | 多里瓦·帕罗内托 | Configuration applied to the biopsy device with the reusable trigger for disposable needle |
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