A kind of fast disassembly type endoscope minimally invasive operation pincersTechnical field
The utility model relates to a kind of fast disassembly type endoscope minimally invasive operation pincers.
Background technique
With the development of endoscope micro-wound, Minimally Invasive Surgery pincers are as essential medical hand a kind of in endoscope-assistant surgeryArt instrument, application is also more and more extensive, and kind is also more and more.Numerous binding clip shapes are typically designed with according to operation purposeDifferent kinds, and the Minimally Invasive Surgery pincers for needing to use a variety of binding clips in every operation clinically cooperate the same handle to makeWith this requires surgical clamps can realize quickly dismantling and assembly in the course of surgery.
Authorization Notice No. proposes corresponding scheme solution for patents such as CN103720505A, CN203677184U and accordingly asksTopic, but such scenario-frame is complex and operation is not easy, in production, the component assembling of handle quick-disassembly structure is difficult, simultaneouslyDoctor is when assembling surgical clamp, and when pull rod is encased in clamp handle, end binding clip may be such that clamp handle blocks.In addition, this threeTear the surgical clamp of formula open, the fixation of binding clip is that pincers pipe clamp mouth is inserted by the binding clip seat boss of binding clip tie component, then 30 ° of dextrorotationThe fixation to realize the two is blocked, and unavoidably there is gap, binding clips because cooperation needs for this screw structure in practiceSeat is difficult stuck, fixed structure that can not be axial so as to cause binding clip seat with claw beam, affects angle and clamping that binding clip is openedPower, this undoubtedly brings inconvenience to patient, affects the accurate operation of Minimally Invasive Surgery, while also increasing and extending operating timeWith increase pain suffered by patient.
Utility model content
It is easy to use the purpose of this utility model is to provide a kind of reasonable in design, and structure is reliable, Neng GoushiQuickly dismantling and the assembly of existing both claw beam and clamp handle, realizes during surgery quickly replacement binding clip, with save operating time andMitigate fast disassembly type endoscope minimally invasive operation pincers painful suffered by patient.
Following technical scheme is used to achieve the above object:
A kind of fast disassembly type endoscope minimally invasive operation pincers, including clamp handle component and claw beam component, the clamp handle component move after includingHandle and it is preceding determine handle, the claw beam component includes pull rod and fixing seat, and handle determine before described and moves handle with rear and is connected by pin, after describedIt is equipped on dynamic handle and matches connection seat with pull rod front end bulb, determine in handle before described equipped with the installation room being connected to connection seat,The installation is indoor to be equipped with axial limiting circle and axially position circle, and the axle center of the axial limiting circle is equipped with and pull rod size phaseThe first through hole matched, the first through hole are connected to connection seat, and the first through hole input end of the axial limiting circle, which is equipped with, to be limitedFixing seat axial position step, the axially position circle includes stop block, stop bit spring and position limiting slide block, the installation roomIt is equipped with the sliding slot laid along diameter in the input end of axial limiting circle, the stop block is slidably mounted in the sliding slot, described to stopThe axle center of position block is equipped with the second through-hole passed through for fixing seat head end, and the inner wall of second through-hole forms retainer ring, described solidThe head end of reservation is equipped with the card slot to match with retainer ring thickness, and the stop block is equipped in the input end of the second through-hole and extends to the outsideGuiding taper hole, the side of the stop block passes through the bottom connection of the stop bit spring and sliding slot radially laid, and the other side is setThere is position limiting slide block, the position limiting slide block limits slippage of the stop block in sliding slot, and the stop bit spring pushes stop block that will blockCircle is installed in the card slot of fixing seat, is limited to fixing seat, and the installation outdoor mounted has thumb wheel seat, is lived on the outside of the thumb wheel seatIt is dynamic to be connected with thumb wheel, it is equipped with the disassembly block to link with thumb wheel in the middle part of the thumb wheel, is equipped in the middle part of the disassembly block big with fixing seatThe front end of the small third through-hole for matching, coaxially laying with axial limiting circle, the disassembly block is equipped with and guiding taper hole size phaseThe matched conical surface, when disassembly status, the conical surface of the disassembly block and the guiding taper hole of stop block are connected, so that stop block and disassemblyBlock formed it is coaxially arranged, to release the limit of fixing seat.Using the above structure, fixing seat can be realized by stirring for thumb wheelDisassembly so that fixing seat disassembly it is very convenient and quick.
Further, the inner wall of the thumb wheel seat is equipped with stop collar, and the outer wall of the disassembly block of the thumb wheel is equipped with and dialsThe limited step that wheel seat upper limit ring matches, the thumb wheel are limited by the cooperation of limited step and stop collar in thumb wheel seatOn, it prevents thumb wheel from deviating from thumb wheel seat, reset spring is equipped between the thumb wheel and thumb wheel seat, the thumb wheel and thumb wheel seat are slidingConnection.
Preferably, the rear end of the fixing seat is equipped with polygon nut, and the inscribed circle diameter of the polygon nut is greater thanThe shape size of the diameter of fixing seat, the shape of the third through-hole cross section of the thumb wheel, size and polygon nut matches.
Further, the claw beam component includes fixing seat, pincers pipe, pull rod, binding clip seat and binding clip, and the pincers are managed and fixing seatFront end is fixedly connected, and the binding clip seat is fixedly connected with pincers pipe front end, and the binding clip seat and binding clip pass through binding clip pin connection, instituteIt states binding clip and is connect with pull rod by connection sheet, the binding clip and connection sheet pass through connection pin connection.
In conclusion the present apparatus is reasonable in design, and it is easy to use, and structure is reliable, can be realized claw beam and clamp handleThe two is quickly disassembled and is assembled, and realizes during surgery quickly replacement binding clip, to save operating time and mitigate suffered by patientPain, product service performance is high, reduces the unnecessary waste of medical instrument.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is clamp handle modular construction schematic diagram of the invention.
Fig. 3 is claw beam structural schematic diagram of the invention.
Fig. 4 is preceding dynamic handle structure schematic diagram after determining handle of the invention.
Fig. 5 is fixed seat structure schematic diagram of the invention.
Fig. 6 is the structural schematic diagram of stop block of the present invention.
Fig. 7 is binding clip seat of the present invention, pincers pipe connecting structure schematic diagram.
Fig. 8 is the structural schematic diagram of thumb wheel of the present invention.
In attached drawing, 1, move handle afterwards, 2, it is preceding determine handle, 3, connection seat, 4, electric connection spring, 5, electric connection, 6, axial limiting circle,7, thumb wheel seat, 8, position limiting slide block, 9, stop block, 10, disassembly block, 11, reset spring, 12, fixing seat, 13, protection pipe, 14, pincersPipe, 15, pull rod, 16, binding clip seat, 17, stay rod pin, the 18, first binding clip, the 19, second binding clip, 20, binding clip pin, the 21, first connectionPin, the 22, second connecting pin, the 23, first connection sheet, the 24, second connection sheet, 25, thumb wheel, 26, stop bit spring.
Specific embodiment
The structure and embodiment of the present apparatus are described in detail with reference to the accompanying drawing.
Referring to FIG. 1 to FIG. 8, present example uses unified clamp handle component, claw beam component, and wherein claw beam component can be adapted toA variety of binding clips.
The clamp handle component moves handle 1, preceding determines handle 2, connection seat 3, electric connection spring 4, electric connection 5, axial limiting after includingCircle 6, thumb wheel seat 7, position limiting slide block 8, stop block 9, disassembly block 10, reset spring 11, thumb wheel 25 and stop bit spring 26.It is preceding to determine handle 2It is connected with rear dynamic handle 1 by pin, dynamic handle 3 is equipped with after described matches connection seat 3 with 15 front end bulb of pull rod, to driveBinding clip movement is determined to be equipped with the installation room being connected to connection seat 3 in handle 2 before described, and the installation is indoor to be equipped with 6 He of axial limiting circleAxially position circle, the axle center of the axial limiting circle 6 are equipped with the first through hole to match with 15 size of pull rod, the first through holeIt is connected to connection seat 3, the first through hole input end of the axial limiting circle 6 is equipped with the step of 12 axial position of fixing seat limited61, the axially position circle includes stop block 9, stop bit spring 26 and position limiting slide block 8, the installation room axial limiting circle intoMouth end is equipped with the sliding slot laid along diameter, and the stop block 9 is slidably mounted in the sliding slot, and the axle center of the stop block 9 is equipped withFor the second through-hole that 12 head end of fixing seat passes through, the inner wall of second through-hole forms retainer ring, the head end of the fixing seat 12Equipped with the card slot to match with retainer ring thickness, the stop block 9 is equipped in the input end of the second through-hole and extends to the outside guiding taper hole91, the side of the stop block 9 is equipped with the stop bit spring 26 radially laid and connect with the bottom of sliding slot, and the other side is equipped with limitSliding block 8, the position limiting slide block 8 limit slippage of the stop block in sliding slot, and the stop bit spring 26 pushes stop block by retainer ringIt is installed in the card slot of fixing seat 12, fixing seat 12 is limited, the installation outdoor mounted has a thumb wheel seat 7, outside the thumb wheel seat 7Slideslip is connected with thumb wheel 25, and the disassembly block 10 to link with thumb wheel 25,10 middle part of disassembly block are equipped in the middle part of the thumb wheel 25Equipped with the third through-hole for matching with fixing seat size, coaxially laying with axial limiting circle 6, the front end of the disassembly block 10 is equipped withThe conical surface to match with guiding taper hole size, when disassembly status, the conical surface of the disassembly block 10 and the guiding taper hole 91 of stop block 9Connection so that stop block 9 with dismantle block 10 formed it is coaxially arranged, to release the limit of fixing seat 12.The thumb wheel seat 7 it is interiorWall is equipped with stop collar, and the outer wall of the disassembly block of the thumb wheel 25 is equipped with the limiting stand to match with thumb wheel seat upper limit ringRank, the thumb wheel 25 are limited on thumb wheel seat 7 by the cooperation of limited step and stop collar, prevent thumb wheel 25 from deviating from thumb wheel seat 7,Reset spring 11 is equipped between the thumb wheel 25 and thumb wheel seat 7, the rear end of the fixing seat 12 is equipped with polygon nut 121, instituteThe inscribed circle diameter for stating polygon nut 121 is greater than the diameter of fixing seat 12,251 cross section of third through-hole of the thumb wheel 25The shape size of shape, size and polygon nut matches.
The present embodiment claw beam component includes fixing seat 12, pull rod 15, pincers pipe 14, protection pipe 13, the connection of binding clip seat 16, firstPin 21, the second connecting pin 22, the first connection sheet 23, the second connection sheet 24, the first binding clip 18, the second binding clip 19.Fixing seat 12 withPincers pipe 14 is fixedly connected, and binding clip seat 16 is fixedly connected with pincers pipe 14, and binding clip seat 16 and the first binding clip 18, the second binding clip 19 pass through pincersHead pin 20 connects, and the first binding clip 18, the second binding clip 19 pass through the first connecting pin 21, the second connecting pin 22 and the first connection sheet respectively23, the second connection sheet 24 connects, and the first connection sheet 23, the second connection sheet 24 are connect by stay rod pin 17 with pull rod 15.
The entire product of the present embodiment is two seperated, assembling process are as follows: insertion claw beam component, so that the bulb of pull rod 15 entersIn the connection seat 3 for moving handle 3 after arriving, fixing seat 12 passes through the guiding taper hole 91 of stop block 9, and then stop bit spring 26 pushes up stop bitRetainer ring is installed in the card slot of fixing seat 12 by block 9, is limited to fixing seat 12, while the limitation of step 61 of axial limiting circle 6 is solidThe axial position of reservation 12, so that fixing seat 12 is axial cannot to continue axial advancement, on the third through-hole 251 and fixing seat of thumb wheelPolygon nut 121 cooperate so that fixing seat 12 with thumb wheel 25 rotate and rotate.
Disassembly process: thumb wheel 25 is stirred backward, pulls out claw beam component, completes disassembly.
Above-mentioned is preferred embodiments of the present invention, but those skilled in the art should be understood that and not depart fromIn the spirit and scope of the utility model defined by the appended claims, the utility model is made in form and detailsVarious change out, belongs to the protection scope of the utility model.