CN108903986A - A kind of hepatobiliary surgery pulling device facilitating adjustment openings of sizes - Google Patents

Abstract

The invention discloses a kind of hepatobiliary surgery pulling devices for facilitating adjustment openings of sizes,Including fixed device,Traction component and cover ring assemblies,Cover ring assemblies include operation cover and fixed ring,Opening is provided on operation cover,Fixed ring is detachably connected in opening,The fixed ring is used to support the opening of operation cover,Fixed ring lower end surface is provided with several and hooks part,Hook part connection operation cover,Telescopic structure is set as by the way that part will be hooked,Facilitate fixed ring and operation cover disassembly and installation,Traction component is slidably connected with fixed device and fixed ring,Fixed device includes support frame and telescopic rod,Support frame is fixedly connected with operating table,In the size for needing to adjust operation opening,Lift telescopic bar drives traction component oscilaltion,When telescopic rod drives linking arm one end to rise,Since linking arm middle section is supported to contradict in fixed ring,Handgrip draws the tissue around operative incision to outer lower side,To realize the size of fine tuning operative incision.

Description

A kind of hepatobiliary surgery pulling device facilitating adjustment openings of sizes

Technical field

The present invention relates to field of medical device, more particularly to a kind of liver and gall surgical department for facilitating adjustment openings of sizes Operation pulling device.

Background technique

The diseases such as liver and gall surgical department's primary treatment liver and gallbladder pancreas tumour, cholelithiasis, portal hypertension.At present in clinical treatment, in abdomen When carrying out the resections such as liver neoplasm, hepatic cyst, cholecystolithiasis and tumour under hysteroscope, often need using surgical instrument to liver group It knits and is lifted, or lesion and surrounding tissue are separated, pulled.It needs in the process using to lifting hook device, in order to Do not influence the visual field of doctor in the course of surgery, traditional lifting hook device using multiple drag hooks toward different directions to operative incision to Outer to be drawn, wherein drag hook one end hook to operative incision with the fixed other end of hand platform expands outwardly it, existing Drag hook is generally fixed on operating bed using nut when in use, and fixed form is more complicated, troublesome in poeration, additionally, due to hand The fixed bit of art platform is equipped with limit, and fixed form is limited, and it is tight cannot to take into account its connection while adjusting surgical field of view well Soundness needs to relocate drag hook, adjustment is relatively complicated, therefore, currently in the tensioning degree for needing to adjust operation opening The generation that a kind of suitable pulling device is avoided that above situation is needed, operation safety is increased.

Summary of the invention

In view of the deficiencies of the prior art, the present invention intends to provide a kind of liver and gallbladder for facilitating adjustment openings of sizes Surgical operation pulling device, by that can be adjusted for Different Individual, is guaranteeing surgical view after stationary positioned The safety of hepatobiliary surgery is improved while wild.

To achieve the above object, the present invention provides following technical solutions：It is a kind of to facilitate outside the liver and gallbladder for adjusting openings of sizes Section's operation pulling device, including fixed device, traction component and cover ring assemblies, cover ring assemblies include operation cover and fixed ring, It is provided with opening on operation cover, fixed ring is detachably connected in opening, which is used to support the opening of operation cover, Fixed ring is fixedly connected with fixed device,

Fixed ring lower end surface is provided with several and hooks part, which is bent to fixed ring lateral surface, and cover is set in opening It is equipped with several connecting holes, hooks part and hook into the fixed cover of connecting hole, be provided in fixed ring and stir chamber, stir and intracavitary be provided with connection Movable plate, fixed ring are provided with for hooking the flexible slippage slot of part, and slippage slot is penetrated through with chamber is stirred, several hook parts and are stretched by slippage slot Entering to stir chamber and be fixed on linkage board, linkage board, which drives, hooks part disengaging connecting hole,

Linkage board is provided with plectrum, and the setting of fixed ring inner ring surface stirs slot, stirs slot and be mutually communicated with chamber is stirred, plectrum is stretched Slot is stirred out,

Linkage board stirs slot one end backwards and to stir cavity wall hinged, and linkage board is abutting portion far from hinge joint one end, should Abutting portion upper and lower end face is respectively arranged with the first inclined-plane and the second inclined-plane, which mutually clamps with the second inclined-plane, contradicts Portion is in cusp-shaped, stir it is intracavitary be provided with adjusting block, which is arranged far from linkage board hinge joint one end, which uses In limitation linkage board rotation, adjusting block is provided with the first resistance surface, the second resistance surface and arc slide surface, and the first resistance surface is used for Conflict is bonded to each other with the first inclined-plane, and the second resistance surface is used to be bonded to each other conflicts with the second inclined-plane, and arc slide surface connects the One resistance surface and the second resistance surface, the arc slide surface are contradicted for linkage board and are slid, and adjusting block is provided at least two third bullets Spring part, at least two third spring part are respectively distributed to the stirring on direction of linkage board, third spring part keep adjusting block with Cavity wall elastic connection is stirred, which keeps adjusting block limit linkage board rotation,

Traction component is slidably connected with fixed device, and fixed device includes support frame and telescopic rod, support frame and operating table It being fixedly connected, telescopic rod drives traction component oscilaltion, and traction component includes the handgrip and linking arm for pulling operation opening, Gu Determine to be provided with support slot on ring, linking arm one end is slidably connected with telescopic rod, which is slidably connected with support slot, grabs Hand protrudes into fixed ring,

Telescopic rod includes pedestal and sliding bar, and pedestal is provided with holding tank, and sliding bar and holding tank sliding connect, and slides bar Upper end is provided with slip base, and linking arm is slidably connected with slip base, and linking arm is equipped with fastener, and pedestal is equipped with catching groove, button Fitting and the mutual snapping of catching groove,

Pedestal is provided with the first locked component, which is used to control the height of sliding bar.

As a further improvement of the present invention, it is provided with the second through slot on linking arm, fastener includes mounting rod and flange, Mounting rod is slidably connected with the second through slot, and flange and catching groove are clamped, and telescopic rod is extended to linking arm side fishplate bar, this connects Plate is for accepting flange.

As a further improvement of the present invention, the first locked component includes limit plate and bolt, and holding tank inner arm is provided with The first axial mounting groove is provided with the first spring part on the first mounting groove, and limit plate is installed by the first spring part with first Slot elastic connection has a spring gap, is provided with third through slot on base outer wall between limit plate and the first mounting groove, should Third through slot and the first mounting groove are interconnected, and bolt is slidably connected with third through slot, and bolt includes stretching out third through slot one end It is provided with handle, bolt insertion spring gap limitation limit plate bounces, when bolt is mutually contradicted with limit plate, limit plate limit System sliding bar sliding,

It slides and is provided with the first tooth block on bar periphery wall, have several along holding tank axial direction equidistant arrangement on limit plate Second tooth block, the first tooth block and several the second tooth blocks are intermeshed, and when sliding bar slides up and down, the first tooth block is adjacent the It bounces between two tooth blocks.

As a further improvement of the present invention, first through slot interconnected with it, first through slot is arranged in catching groove lower end It is inside provided with the second locked component, which skids off for limiting fastener, the first through slot side of fastener direction It is arranged fluted, which supplies the second locked component grafting, and the second locked component is slidably connected with the first through slot, the second locking group Part mutually links with the first locked component,

Second locked component includes inserted link, which slides in the first through slot, and bolt is provided with linkage block, the linkage block Setting is in inserted link lower end, and when bolt is inserted into spring gap, linkage block drives inserted link to be inserted into groove to one side slip of catching groove,

Second locked component further includes second spring part and mounting plate, second spring part one end connection plate, the other end Inserted link is connected, mounting plate setting is contradicted in linkage block upper end with it, and inserted link is provided with third inclined-plane close to catching groove one end, the third Inclined-plane towards catching groove be open side.

As a further improvement of the present invention, first sliding groove is set on slip base, and linking arm periphery wall is axially provided with cunning Block, the sliding block are slidably connected with first sliding groove, and sliding block is hinged with linking arm.

As a further improvement of the present invention, it is provided with clamping groove on pedestal, which is used for snapping handle, clamping groove It is vertically arranged with the first through slot, the clamping groove and the first through slot are interconnected.

As a further improvement of the present invention, handgrip is threadedly coupled with linking arm, and handgrip includes the upper lying plate bent downward And lower lying plate, the upper lying plate and lower lying plate mutually clamp, and torsional spring is provided between upper lying plate and lower lying plate, the upper lying plate and lower hook Plate is hinged by torsional spring, and lower lying plate is bonded to each other when being closed and clamp with upper lying plate.

Beneficial effects of the present invention are：When in use, fixed device is fixed on operation bedstead, by operation cover covering With patient, fixed ring is directed at operation opening position, fixed ring passes through fixed device and fixes vacantly in operation opening End, operation cover are detachably connected with fixed ring, hook part by being arranged in fixed ring lower end, several hook part connection operation cover The connecting hole of cloth, structure is simple, and connection is more convenient, hooks the scalable storage of part, and to facilitate installation, in addition its fixed ring is set It sets in operation opening upper end, to facilitate the supporting point as various surgical instruments, so that doctor is more stable in the course of surgery, Several hook parts are fixed on linkage board, the drive of linkage board hooks part and stretches, and hooking part is in arc-shaped, outwardly directed It stretches out fixed ring one end simultaneously and fixed ring-side wall is close to each other to prevent operation cover from slipping, by stirring intracavitary setting Adjusting block, adjusting block are used for two kinds of retracted positions of location hook part, when in use, stir plectrum downwards and drive and hook part to overhanging Out, when pushing plectrum, linkage board pushes adjusting block to one side slip of slippage slot, and adjusting block releases the limitation to linkage board, Stir the second resistance surface that its abutting portion after linkage board is slid onto adjusting block along arc slide surface downwards, the first of abutting portion Inclined-plane is mutually contradicted with the second resistance surface, and after hooking part stretching and penetrating in connecting hole, adjusting block limitation linkage board slides upwards, When needing to dismantle operation cover, plectrum is dialed up, adjusting block is released to one side slip of slot, adjusting block is stirred to linkage board Limit, its abutting portion is slid onto the first resistance surface of adjusting block, abutting portion along arc slide surface after dialing up linkage board The second inclined-plane mutually contradicted with the first resistance surface, without external forces hook part remain retracted in slippage slot, design When its hook part arc core and linkage board the concentric setting of hinge joint, in the size for needing to adjust operation opening, lift telescopic Bar drives traction component oscilaltion, when telescopic rod drives linking arm one end to rise, since linking arm middle section is supported to contradict In fixed ring, handgrip is to the tissue around outer lower side traction operative incision, to realize the size of fine tuning operative incision.

Detailed description of the invention

Fig. 1 is schematic structural view of the invention；

Fig. 2 is the mounting structure schematic diagram of the present invention fixed device and traction component；

Fig. 3 is the mounting structure cross-sectional view of the present invention fixed device and traction component；

Fig. 4 is the first locked component and the unlocked state diagram of the second locked component；

Fig. 5 is the state diagram that the first locked component and the second locked component lock；

Fig. 6 is the mounting structure schematic diagram of linking arm and slip base；

Fig. 7 is the usage state diagram for hooking part and being contracted in fixed ring；

Fig. 8 is the usage state diagram for hooking part and stretching out fixed ring；

Fig. 9 is the mounting structure schematic diagram for hooking part, linkage board and driving lever.

A1, fixed device；A2, traction component；A3, support frame；A4, telescopic rod；A5, handgrip；A6, linking arm；A7, bottom Seat；A8, sliding bar；A9, holding tank；A10, slip base；A11, fastener；A12, catching groove；A13, upper lying plate；A14, lower lying plate； A15, torsional spring；A16, bumper rubber；A17, the second through slot；A18, mounting rod；A19, flange；A20, fishplate bar；B1, the first locking group Part；B2, limit plate；B3, bolt；B4, the first mounting groove；B5, the first spring part；B6, spring gap；B7, third through slot；b8, Handle；B9, the first tooth block；B10, the second tooth block；B11, the first through slot；B12, groove；B13, inserted link；B14, linkage block；b15, Second spring part；B16, mounting plate；B17, third inclined-plane；B18, first sliding groove；B19, sliding block；B20, clamping groove；C1, cover ring group Part；C2, operation cover；C3, fixed ring；C4, opening；C5, part is hooked；C6, connecting hole；C7, chamber is stirred；C8, linkage board；C9, cunning Move slot；C10, plectrum；C11, slot is stirred；C12, abutting portion；C13, the first inclined-plane；C14, the second inclined-plane；C15, adjusting block；c16, First resistance surface；C17, the second resistance surface；C18, arc slide surface；C19, third spring part；C20, support slot.

Specific embodiment

The present invention is described in further detail below in conjunction with embodiment given by attached drawing.

Referring to Fig.1 shown in -9, a kind of hepatobiliary surgery drawing facilitating adjustment opening c4 size disclosed in the present embodiment Device, including fixed device a1, traction component a2 and cover ring assemblies c1, cover ring assemblies c1 include operation cover c2 and fixed ring Opening c4 is provided on c3, the cover c2 that performs the operation, fixed ring c3 is detachably connected on opening c4, and fixed ring c3 is used to support hand The opening c4 of art cover c2, fixed ring c3 are fixedly connected with fixed device a1,

The lower end surface fixed ring c3 is provided with several and hooks part c5, which is bent to fixed ring c3 lateral surface, and cover exists It is provided with several connecting holes c6 at opening c4, part c5 is hooked and hooks into the fixed cover of connecting hole c6, be provided with and stir in fixed ring c3 Chamber c7 is stirred and is provided with linkage board c8 in chamber c7, and fixed ring c3 is provided with for hooking the flexible slippage slot c9 of part c5, slippage slot c9 with Chamber c7 perforation is stirred, several, which hook part c5 and protrude by slippage slot c9, stirs chamber c7 and be fixed on linkage board c8, linkage board c8 band The dynamic part c5 that hooks passes in and out connecting hole c6, and linkage board c8 is provided with plectrum c10, and the setting of fixed ring c3 inner ring surface stirs slot c11, stirs slot C11 is mutually communicated with chamber c7 is stirred, and slot c11 is stirred in plectrum c10 stretching,

Linkage board c8 stirs the one end slot c11 backwards and to stir chamber c7 inner wall hinged, and linkage board c8 is far from hinge joint one end Abutting portion c12, the abutting portion upper and lower end face c12 are respectively arranged with the first inclined-plane c13 and the second inclined-plane c14, first inclined-plane c13 It mutually being clamped with the second inclined-plane c14, abutting portion c12 is in cusp-shaped, and it stirs and is provided with adjusting block c15 in chamber c7, adjusting block c15 It is arranged far from linkage board c8 hinge joint one end, adjusting block c15 is provided with for limiting linkage board c8 rotation, adjusting block c15 First resistance surface c16, the second resistance surface c17 and arc slide surface c18, the first resistance surface c16 are used for mutual with the first inclined-plane c13 Fitting contradicts, and the second resistance surface c17 is used to be bonded to each other conflict with the second inclined-plane c14, and arc slide surface c18 connection first contradicts Face c16 and the second resistance surface c17, the arc slide surface c18 are contradicted for linkage board c8 and are slid, and adjusting block c15 is provided at least two A third spring part c19, at least two third spring part c19 are respectively distributed to the stirring on direction of linkage board c8, third bullet Spring part c19 keeps adjusting block c15 and stirs chamber c7 inner wall elastic connection, which keeps adjusting block c15 limit connection Movable plate c8 rotation,

Traction component a2 is slidably connected with fixed device a1, and fixed device a1 includes support frame a3 and telescopic rod a4, support Frame a3 is fixedly connected with operating table, and telescopic rod a4 drives traction component a2 oscilaltion, and traction component a2 includes drawing opening operation It is provided with support slot on the handgrip a5 and linking arm a6 of mouth c4, fixed ring c3, the one end linking arm a6 is slidably connected with telescopic rod a4, The middle section linking arm a6 is slidably connected with support slot, and handgrip a5 is protruded into fixed ring c3,

Telescopic rod a4 includes that pedestal a7 and sliding bar a8, pedestal a7 are provided with holding tank a9, sliding bar a8 and holding tank a9 Sliding connection, the sliding upper end bar a8 are provided with slip base a10, and linking arm a6 is slidably connected with slip base a10, sets on linking arm a6 There are fastener a11, pedestal a7 to be equipped with the mutual snapping of catching groove a12, fastener a11 and catching groove a12,

Pedestal a7 is provided with the first locked component b1, which is used to control the height of sliding bar a8.

When in use, fixed device a1 is fixed on operation bedstead, operation cover c2 is covered on patient, will be consolidated Determining the ring c3 alignment position operation opening c4, it is fixed vacantly in the upper end operation opening c4 that fixed ring c3 passes through fixed device a1, Operation cover c2 and fixed ring c3 is detachably connected, and hooks part c5 by being arranged in the lower end fixed ring c3, several hook part c5 connection The connecting hole c6 of operation cover c2, structure is simple, connects more convenient, the hook scalable storage of part c5, to facilitate installation, separately Outer its fixed ring c3 is arranged in the upper end operation opening c4, to facilitate the supporting point as various surgical instruments, so that doctor is in hand It is more stable during art, several hooks part c5 is fixed on linkage board c8, the drive of linkage board c8 hooks part c5 and stretches, Hooking part c5 is in arc-shaped, it stretches out the one end fixed ring c3 while protruding and fixed ring c3 side wall is close to each other to prevent The cover c2 that performs the operation is slipped, and by stirring setting adjusting block c15 in chamber c7, adjusting block c15 is used for two kinds of location hook part c5 Retracted position stirs downwards plectrum c10 and drives hook part c5 protruding when in use, when pushing plectrum c10, linkage board c8 Push adjusting block c15 to mono- side slip of slippage slot c9, adjusting block c15 releases the limitation to linkage board c8, and connection is stirred downwards Its abutting portion c12 is slid onto the second resistance surface c17 of adjusting block c15, abutting portion c12 along arc slide surface c18 after movable plate c8 The first inclined-plane c13 and the second resistance surface c17 mutually contradict, hook part c5 stretching penetrate in connecting hole c6 after, adjusting block c15 limit Linkage board c8 processed slides upwards, when needing to dismantle operation cover c2, dials up plectrum c10, and adjusting block c15 is to stirring slot Mono- side slip of c11, adjusting block c15 release limit to linkage board c8, after dialing up linkage board c8 its abutting portion c12 along Arc slide surface c18 is slid onto the first resistance surface c16 of adjusting block c15, and the second inclined-plane c14 of abutting portion c12 and first is contradicted Face c16 is mutually contradicted, and is hooked part c5 without external forces and is remained retracted in slippage slot c9, its arc for hooking part c5 when design The concentric setting of hinge joint of the heart and linkage board c8, when needing to adjust the size of operation opening c4, lift telescopic bar a4 is driven Traction component a2 oscilaltion, when telescopic rod a4 drives the one end linking arm a6 to rise, since the middle section linking arm a6 is supported to contradict On fixed ring c3, handgrip a5 is to the tissue around outer lower side traction operative incision, to realize the size of fine tuning operative incision.

As a kind of improved specific embodiment, the second through slot a17 is provided on linking arm a6, fastener a11 includes Mounting rod a18 and flange a19, mounting rod a18 are slidably connected with the second through slot a17, and flange a19 and catching groove a12 are clamped, telescopic rod A4 is extended to the side linking arm a6 fishplate bar a20, and fishplate bar a20 is for accepting flange a19.

The fishplate bar a20 that fastener a11 is set as being slidably connected with linking arm a6, and is accepted in lower end setting, so that When adjusting the traction angle of linking arm a6, it can be realized the angle of fine tuning fastener a11, remain fastener a11 and catching groove A12 alignment, to facilitate the fastener a11 and catching groove a12 after linking arm a6 sliding to be in place mutually clamped.

As a kind of improved specific embodiment, the first locked component b1 includes limit plate b2 and bolt b3, holding tank A9 inner arm is provided on the first axial mounting groove b4, the first mounting groove b4 and is provided with the first spring part b5, and limit plate b2 passes through First spring part b5 and the first mounting groove b4 elastic connection have a spring gap between limit plate b2 and the first mounting groove b4 B6 is provided with third through slot b7 on pedestal a7 outer wall, and the third through slot b7 and the first mounting groove b4 are interconnected, bolt b3 and the Three through slot b7 are slidably connected, and bolt b3 includes stretching out the one end third through slot b7 to be provided with handle b8, bolt b3 insertion spring gap B6 limits limit plate b2 spring, when bolt b3 and limit plate b2 is mutually contradicted, limit plate b2 limitation sliding bar a8 sliding,

It is provided on the first tooth block b9, limit plate b2 on sliding bar a8 periphery wall along holding tank a9 axial direction equidistant arrangement There are several the second tooth blocks b10, the first tooth block b9 and several the second tooth block b10 intermeshing, when sliding bar a8 or more slides, First tooth block b9 bounces between the second adjacent tooth block b10.

The locking structure of its telescopic rod a4 is easy to operate, when needing to adjust the height of telescopic rod a4, bolt b3 is downward Bolt b3 and limit plate b2 is released and is contradicted limitation by sliding, and when pulling sliding bar a8 sliding, limit plate b2 is in the first mounting groove Spring in b4, the first tooth block b9 slid on bar a8 bounce between several second adjacent tooth block b10, are needing sliding When bar a8 is positioned, the spring gap b6 that bolt b3 is slid onto along third through slot b7 between limit plate b2 and the first mounting groove b4 In, limitation limit plate b2 spring, the first tooth block b9 is limited between the second adjacent tooth block b10, slides bar a8 with locking.

As a kind of improved specific embodiment, the first through slot b11 interconnected with it is arranged in the lower end catching groove a12, It is provided with the second locked component in first through slot b11, which skids off for limiting fastener a11, fastener Fluted b12 is arranged towards the first side through slot b11 in a11, and groove b12 supplies the second locked component grafting, the second locked component It being slidably connected with the first through slot b11, the second locked component mutually links with the first locked component b1,

Second locked component includes inserted link b13, and inserted link b13 slides in the first through slot b11, and bolt b3 is provided with linkage Block b14, the linkage block b14 setting are in the lower end inserted link b13, and when bolt b3 is inserted into spring gap b6, linkage block b14, which drives, to be inserted Bar b13 is inserted into groove b12 to mono- side slip of catching groove a12,

Second locked component further includes second spring part b15 and mounting plate b16, the connection installation of second spring one end part b15 Plate b16, the other end connect inserted link b13, and mounting plate b16 setting is contradicted in the upper end linkage block b14 with it, and inserted link b13 is close to catching groove The one end a12 is provided with third inclined-plane b17, the third inclined-plane b17 towards catching groove a12 be open the side c4.

By setting the second locked component come so that traction component a2 to operating table side sliding be locked afterwards in place, prevent Only traction component a2 slides in the course of surgery, and the second locked component and the first locked component b1 are set as linking, so that The positioning of traction component a2 drawing and height adjustment can be disposably adjusted in place, and when in use, be first pulled to traction component a2 Position, the fastener a11 being arranged on linking arm a6 is snapped onto snap groove, and after being highly adjusted in place, bolt b3 is being inserted While being connected in spring gap b6, the linkage block b14 being wholely set with it drives mounting plate b16 that inserted link b13 is headed into snapping In the groove b12 of part a11, prevent fastener a11 from deviating from catching groove a12, so that traction component a2 is firmly positioned, to guarantee to perform the operation Carry out safety.

As a kind of improved specific embodiment, first sliding groove b18, linking arm a6 periphery wall are set on slip base a10 It axially is provided with sliding block b19, sliding block b19 is slidably connected with first sliding groove b18, and linking arm a6 is more steady in sliding process It is fixed.

As a kind of improved specific embodiment, it is provided with clamping groove b20 on pedestal a7, clamping groove b20 is for detaining Handle b8 is met, clamping groove b20 is vertically arranged with the first through slot b11, and clamping groove b20 and the first through slot b11 are interconnected, card The position handle b8 is high together when the height and position of access slot b20 setting is inserted into spring gap b6 with bolt b3, when in use, bolt b3 After insertion spring gap b6, handle b8 is turned in clamping groove b20, prevents bolt b3 from deviating from.

As a kind of improved specific embodiment, handgrip a5 is threadedly coupled with linking arm a6, and handgrip a5 includes being turned under The upper lying plate a13 and lower lying plate a14 of folding, upper lying plate a13 and lower lying plate a14 are mutually clamped, upper lying plate a13 and lower lying plate a14 Between be provided with torsional spring a15, upper lying plate a13 and lower lying plate a14 are hinged by torsional spring a15, lower lying plate a14 and upper lying plate a13 It is bonded to each other when closure clamping.

Clamp structure is set by handgrip a5, existing hook structure is different from and needs for hook thorn to be punctured in institutional framework, To reduce the further injury to patient body tissue, it sets handgrip a5 to the upper lying plate a13 and lower lying plate a14 of bending, When it does not need clamping closure, portion of tissue can be moved with the hand, realizes multiple use switching.

The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment, All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (7)

1. a kind of hepatobiliary surgery pulling device for facilitating adjustment openings of sizes, it is characterised in that：Including fixed device (a1), Traction component (a2) and cover ring assemblies (c1), the cover ring assemblies (c1) include operation cover (c2) and fixed ring (c3), described It is provided with opening (c4) in operation cover (c2), the fixed ring (c3) is detachably connected on opening (c4), the fixed ring (c3) it is used to support the opening (c4) of operation cover (c2), the fixed ring (c3) is fixedly connected with fixed device (a1),

Fixed ring (c3) lower end surface is provided with several and hooks part (c5), and the hook part (c5) is curved to fixed ring (c3) lateral surface Song, the cover are provided with several connecting holes (c6) at opening (c4), and it is fixed that the hook part (c5) hooks into connecting hole (c6) Cover, interior be provided with of the fixed ring (c3) are stirred chamber (c7), and described stir is provided with linkage board (c8) in chamber (c7), described solid Determine ring (c3) to be provided with for hooking part (c5) flexible slippage slot (c9), the slippage slot (c9) penetrates through with chamber (c7) is stirred, several A hook part (c5) is protruded by slippage slot (c9) and stirs chamber (c7) and be fixed on linkage board (c8), linkage board (c8) band It is dynamic to hook part (c5) disengaging connecting hole (c6),

The linkage board (c8) is provided with plectrum (c10), and fixed ring (c3) the inner ring surface setting is stirred slot (c11), and described group Dynamic slot (c11) is mutually communicated with chamber (c7) is stirred, and the plectrum (c10), which is stretched out, stirs slot (c11),

The linkage board (c8) stirs slot one end (c11) backwards and to stir chamber (c7) inner wall hinged, and the linkage board (c8) is separate Hinge joint one end is abutting portion (c12), which is respectively arranged with the first inclined-plane (c13) and second tiltedly Face (c14), first inclined-plane (c13) and the second inclined-plane (c14) are mutually clamped, and the abutting portion (c12) is in cusp-shaped, and described group It is provided with adjusting block (c15) in dynamic chamber (c7), which is arranged far from linkage board (c8) hinge joint one end, the tune Locking nub (c15) is provided with the first resistance surface (c16), the second conflict for limiting linkage board (c8) rotation, the adjusting block (c15) Face (c17) and arc slide surface (c18), first resistance surface (c16) are used to be bonded to each other conflict with the first inclined-plane (c13), Second resistance surface (c17) is used to be bonded to each other conflicts with the second inclined-plane (c14), and the arc slide surface (c18) connects the One resistance surface (c16) and the second resistance surface (c17), the arc slide surface (c18) are contradicted for linkage board (c8) and are slid, the adjusting Block (c15) is provided at least two third spring parts (c19), and at least two third spring part (c19) is respectively distributed to link Plate (c8's) stirs on direction, and the third spring part (c19) keeps adjusting block (c15) and stirs chamber (c7) inner wall elasticity company It connects, which keeps adjusting block (c15) limit linkage board (c8) rotation,

The traction component (a2) is slidably connected with fixed device (a1), and the fixed device (a1) includes support frame (a3) and stretches Contracting bar (a4), support frame as described above (a3) are fixedly connected with operating table, and the telescopic rod (a4) drives traction component (a2) to rise up and down Drop, the traction component (a2) include the handgrip (a5) and linking arm (a6) of drawing operation opening (c4), the fixed ring (c3) On be provided with support slot (c20), described linking arm one end (a6) is slidably connected with telescopic rod (a4), the linking arm middle section (a6) with Support slot (c20) is slidably connected, and the handgrip (a5) is protruded into fixed ring (c3), the telescopic rod (a4) include pedestal (a7) and It slides bar (a8), the pedestal (a7) is provided with holding tank (a9), and the sliding bar (a8) and holding tank (a9) sliding connect, institute It states sliding upper end bar (a8) to be provided with slip base (a10), the linking arm (a6) is slidably connected with slip base (a10), the company Arm (a6) is met equipped with fastener (a11), the pedestal (a7) is equipped with catching groove (a12), the fastener (a11) and catching groove (a12) mutual snapping,

The pedestal (a7) is provided with the first locked component (b1), which is used to control sliding bar (a8) Highly.

2. a kind of hepatobiliary surgery pulling device for facilitating adjustment openings of sizes according to claim 1, feature exist In：It is provided with the second through slot (a17) on the linking arm (a6), the fastener (a11) includes mounting rod (a18) and flange (a19), the mounting rod (a18) is slidably connected with the second through slot (a17), and the flange (a19) and catching groove (a12) are clamped, institute Stating telescopic rod (a4) and being extended to the linking arm side (a6) has fishplate bar (a20), and the fishplate bar (a20) is for accepting flange (a19).

3. a kind of hepatobiliary surgery pulling device for facilitating adjustment openings of sizes according to claim 2, feature exist In：First locked component (b1) includes limit plate (b2) and bolt (b3), and holding tank (a9) inner arm is provided with axial direction The first mounting groove (b4), be provided with the first spring part (b5) on first mounting groove (b4), the limit plate (b2) passes through First spring part (b5) and the first mounting groove (b4) elastic connection, have between the limit plate (b2) and the first mounting groove (b4) One spring gap (b6) is provided with third through slot (b7) on pedestal (a7) outer wall, the third through slot (b7) and the first peace Tankage (b4) is interconnected, and the bolt (b3) is slidably connected with third through slot (b7), and the bolt (b3) includes stretching out third The one end through slot (b7) is provided with handle (b8), bolt (b3) insertion spring gap (b6) limitation limit plate (b2) spring, when When bolt (b3) and limit plate (b2) are mutually contradicted, the limit plate (b2) limitation sliding bar (a8) sliding,

It is provided with the first tooth block (b9) on sliding bar (a8) periphery wall, it is axial along holding tank (a9) on the limit plate (b2) Direction equidistant arrangement has several the second tooth blocks (b10), and the first tooth block (b9) is mutually nibbled with several the second tooth blocks (b10) It closes, when sliding bar (a8) slides up and down, the first tooth block (b9) bounces between the second adjacent tooth block (b10).

4. a kind of hepatobiliary surgery pulling device for facilitating adjustment openings of sizes according to claim 3, feature exist In：The catching groove lower end (a12) is arranged first through slot (b11) interconnected with it, and first through slot (b11) is interior to be provided with the Two locked components, second locked component are skidded off for limiting fastener (a11), the first through slot of fastener (a11) direction (b11) fluted (b12) is arranged in side, which supplies the second locked component grafting, second locked component and first Through slot (b11) is slidably connected, and second locked component and the first locked component (b1) mutually link,

Second locked component includes inserted link (b13), the inserted link (b13) sliding, bolt in the first through slot (b11) (b3) it is provided with linkage block (b14), the linkage block (b14) setting is inserted into spring gap in the lower end inserted link (b13), at bolt (b3) (b6) when interior, linkage block (b14) drives inserted link (b13) to be inserted into groove (b12) to catching groove (a12) side slip,

Second locked component further includes second spring part (b15) and mounting plate (b16), the second spring part (b15) one Hold connection plate (b16), the other end connects inserted link (b13), the mounting plate (b16) setting the linkage block upper end (b14) with It is contradicted, and the inserted link (b13) is provided with third inclined-plane (b17) close to the one end catching groove (a12), third inclined-plane (b17) direction Catching groove (a12) opening side (c4).

5. a kind of hepatobiliary surgery pulling device for facilitating adjustment openings of sizes according to claim 4, feature exist In：First sliding groove (b18) is set on the slip base (a10), linking arm (a6) periphery wall is axially provided with sliding block (b19), which is slidably connected with first sliding groove (b18), and the sliding block (b19) and linking arm (a6) are hinged.

6. a kind of hepatobiliary surgery pulling device for facilitating adjustment openings of sizes according to claim 5, feature exist In：It is provided with clamping groove (b20) on the pedestal (a7), which is used for snapping handle (b8), the clamping groove (b20) it is vertically arranged with the first through slot (b11), the clamping groove (b20) and the first through slot (b11) are interconnected.

7. a kind of hepatobiliary surgery pulling device for facilitating adjustment openings of sizes according to claim 1, feature exist In：The handgrip (a5) is threadedly coupled with linking arm (a6), the handgrip (a5) include the upper lying plate (a13) bent downward and under It hooks plate (a14), the upper lying plate (a13) and lower lying plate (a14) mutually clamp, between the upper lying plate (a13) and lower lying plate (a14) Be provided with torsional spring (a15), the upper lying plate (a13) and lower lying plate (a14) by torsional spring (a15) hingedly, the lower lying plate (a14) with It is bonded to each other when upper lying plate (a13) closure clamping.