A kind of insulation hemostatic clampTechnical field
The present invention relates to the field of medical instrument technology, and in particular to a kind of insulation hemostatic clamp.
Background technology
Endoscope hemostasis folder is because its traumatic small, anthemorrhagic speed is fast, bleeding event is low again, few intercurrent disease, curative effect in recent yearsThe features such as definite, it has also become critical patient acute gastrointestinal bleeding non-operative treatment is most effective, most has the side of clinical valueMethod.After the effect of hemostatic clamp closes thin vessels and hemostasis for folder has gained public acceptance at present, but hemostatic clamp folder closes wound, if allStill there is a small amount of bleeding on side, and because closing on previous piece of metal clip, when can not reuse new hemostatic clamp, can generally take electric knifeThe mode of coagulation is stopped blooding, but electric knife can not avoid contact to previous piece of metal clip and usually be led at this time due to the effect of metallic conductionSend a telegraph damage, sometimes even cause transmural lesion, especially metal clip for enteron aisle pedicle skin flap polypus pre-process when, sometimes the base of a fruit compared withShort, electric snare inevitably touches metal clip in cutting, it might even be possible to the generation for causing patient's Delayed onset to perforate, it is therefore, clinicalIt is badly in need of a insulation hemostatic clamp.Not only can be with the hemostatic function of current metal clip, but also metallic conduction is brought one can be avoidedSerial new problem.
Invention content
The purpose of the present invention is to provide a kind of insulation hemostatic clamps, to solve existing hemostatic clamp presence and electric knifeAnd when electricity snare partner treatment, it is easy to cause electric injury.
To achieve the above object, the present invention provides a kind of insulation hemostatic clamp, the insulation hemostatic clamp include clamping device withAnd fixed seat, the clamping device include sequentially connected clip body and steel wire buckle；The fixed seat front end is equipped with fixed pinAxis, the clip body are made of two clamping limbs, and the tail end of two clamping limbs is connected by active pin shaft, described in twoA sliding slot is respectively provided in the middle part of clamping limb, the fixed pin shaft passes through the sliding slot, two clamping limbs reciprocal along sliding slotMovement forms the opening and closing of clip body；The outer surface of two clamping limbs is covered at least one layer of insulating materials.
Preferably, the end of the sliding slot is equipped with bending structure, when the clamping limb moves so that fixed pin shaft is positioned at curvedWhen in folded structure, two clamping limbs are in locked closed position；The steel wire buckle around being located on the active pin shaft, whenWhen the pulling force applied on the steel wire buckle reaches predetermined value, the steel wire buckle is detached from the active pin shaft；The steel wire buckle withAfter the active pin shaft is detached from, the rear portion of the clip body is fixed in fixed seat.
Preferably, the tail end of two clamping limbs is provided with crotch structure, and the fixed seat is equipped with and the crotchThe protrusion of physical fit, when two clamping limbs are in locked closed position, the crotch structure card of two clamping limb tail endsIt is buckled in the protrusion.
Preferably, the inner surface of two clamping limbs is again covered at least one layer of insulating materials.
Preferably, the fixed seat is sequentially connected transition cap, locking cap and remote spring pipe composition housing tube assembly, instituteIt includes the connector for connecting the steel wire buckle to state clamping device, and flexible chaste tree pawl, the chaste tree pawl are arranged on the connectorThe buckle of deformation can be carried out by being equipped with two or more, and the fixed seat is mutually nested with the transition cap portion, and mutually embeddingThe part of set is equipped with the card slot that can accommodate buckle, and fixed seat is connected with transition cap, applied when on the chaste tree pawl by the buckleWhen the pulling force added reaches preset value, the buckle generates elastic deformation and stretches so that the buckle is detached from card slot, the fixed seatIt is detached from the transition cap；The transition cap tail end is equipped with transition cap mold insert so that the outer wall of transition cap forms annular groove, described solidDetermine cap one end to be fixedly connected with the remote spring pipe, the other end is equipped with the annular projection being adapted to the annular groove so that describedIt can be relatively rotated between transition cap and the locking cap.
Preferably, the peripheral surface of the fixed seat is again covered at least one layer of insulating materials.
Preferably, the internal diameter of the locking cap and the remote spring pipe is more than steel wire buckle, connector and chaste tree pawl mostBig outer diameter.
Preferably, bourdon tube transition piece is equipped in the remote spring pipe, the connector is connect with an operating rope, describedBourdon tube transition piece be equipped with only accommodate operating rope by through-hole.
Preferably, the hole shape of the clamping limb setting active pin shaft is oval shape.
Preferably, the peripheral surface of the transition cap and the locking cap is again covered at least one layer of insulating materials.
The invention has the advantages that：The insulation hemostatic clamp of the present invention in the outer surface of two clamping limbs by covering insulationMetal hemostatic clamp is isolated with electric knife or electric snare by insulating materials, avoids metal hemostatic clamp and high-frequency electrical by materialElectric current, which imports metal hemostatic clamp, when knife contacts leads to alimentary canal tissue electric injury.
Description of the drawings
Fig. 1 is the structural schematic diagram of present invention insulation hemostatic clamp.
Fig. 2 is the partial enlarged view of part i in Fig. 1.
Fig. 3 is the first variable condition schematic diagram in Fig. 2.
Fig. 4 is the second variable condition schematic diagram in Fig. 2.
Fig. 5 is third variable condition schematic diagram in Fig. 2.
Fig. 6 is the partial enlarged view of part ii in Fig. 1.
Fig. 7 is the side structure schematic view of one of clamping limb.
Fig. 8 is the side elevational cross-section structural schematic diagram of clamping limb in Fig. 7.
Fig. 9 is the side elevational cross-section structural schematic diagram of a clamping limb in embodiment 2.
Specific implementation mode
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment 1
As depicted in figs. 1 and 2, the invention discloses a kind of insulation hemostatic clamp, which includes housing tube assemblyWith the clamping device in housing tube assembly, the housing tube assembly includes sequentially connected fixed seat 4, transition cap 8, fixesCap 10 and remote spring pipe 11, the clamping device include sequentially connected clip body 1, steel wire buckle 5, connector 7 andThe operating rope 14 of attended operation handle 13；Fixed seat front end is equipped with fixed pin shaft 2, and clip body 1 is by two clamping limb 1a, 1b structuresAt the tail end of two clamping limbs 1a, 1b are connected by active pin shaft 3, and a sliding slot is respectively provided in the middle part of two clamping limbs 1a, 1b1c, 1d, the occlusion distal end indention 1b2 cooperations of described two clamping limb 1a, 1b.As shown in figure 8, two clamping limbs 1a, 1bOuter surface be covered at least one layer of insulating materials, the preference of insulating materials is silica gel 18, and the covering method of silica gel 18 is logicalIt crosses clamping limb 1a, 1bEntering in liquid silica gel so that liquid silica gel is contacted with its outer surface, then clamping limb 1a, 1b are taken out,After liquid silica gel solidification on the outer surfaces arm 1a, 1b to be held, then clamping limb 1a, 1bEnter and carries out second layer silicon in liquid silica gelThe covering of glue 18 can cover multilayer silica gel 18, silica gel by the way that the above process is repeated several times in the outer surface of clamping limb 1a, 1b18 number of plies preference is 2-8 layers.
As shown in fig. 7, the end of sliding slot 1c, 1d are equipped with bending structure 1c1,1d1, fixed pin shaft passes through sliding slot 1c, 1d, whenTwo clamping limbs 1a, 1b move back and forth the opening and closing for constituting clip body 1 along sliding slot；Steel wire buckle 5 around being located on active pin shaft 3, whenWhen the pulling force applied on steel wire buckle 5 reaches predetermined value, steel wire buckle 5 is stretched to be detached from active pin shaft 3；Steel wire buckle 5 and removable pinAfter axis 3 is detached from, clip body 1 is fixed in fixed seat 4.Flexible chaste tree pawl 14 is set on connector 7, and chaste tree pawl 14 is equipped withBuckle 6, fixed seat 4 and transition cap 8 have the part of mutually nested overlapping, and mutually nested part is equipped with can accommodate buckle6 card slot 15, buckle 6 connect fixed seat 4 and transition cap 8, when the pulling force applied on buckle 6 reaches preset value, buckle 6It generates deformation to stretch so that buckling 6 disengaging card slots 15, fixed seat 4 and transition cap 8 are detached from；8 tail end of transition cap is inlayed equipped with transition capPart 9 so that the outer wall of transition cap 8 forms annular groove 16, and one end of locking cap 10 is fixedly connected with remote spring pipe 11, and the other end is setThere is the annular projection 10a being adapted to annular groove so that can be relatively rotated between transition cap 8 and locking cap 10.Locking cap 10 and remoteThe internal diameter of bourdon tube 11 is held to be more than the maximum outside diameter of steel wire buckle 5, connector 7 and chaste tree pawl 14.As shown in fig. 6, remote spring pipeBe equipped with bourdon tube transition piece 12 in 11, bourdon tube transition piece 12 be equipped with only accommodate operating rope 14 by through-hole.As shown in fig. 7,The hole shape of clamping limb 1a, 1b setting active pin shaft 3 is oval shape 1b3.
It is illustrated in figure 2 the open configuration of two clamping limbs 1a, 1b, insulation hemostatic clamp alignment can be needed to be clamped at this timeThe human body of hemostasis.Operating rope 14 can be rotated as needed, thus drive insulation hemostatic clamp ontology rotation.
As shown in figure 3, (insulation hemostatic clamp ontology direction is front, operating rope side in the present invention after finding puncture site accuratelyTo for rear), operating rope 14 is pulled back, the track that two clamping limbs 1a, 1b are formed along sliding slot 1c, 1d and fixed pin shaft 2 at this timeRecession, while being closed.The end of sliding slot 1c, 1d are equipped with bending structure 1c1,1d1, when clamping limb 1a, 1b are moved so that fixingWhen axis pin 2 is located in bending structure 1c1,1d1, that is, ensure to be formed when two clamping limbs 1a, 1b are moved backward to be closed, while in cunningThe end of slot 1c, 1d are set as locking position.Meanwhile the tail end of two clamping limbs 1a, 1b are provided with crotch structure 1b1, it is fixedSeat 4 is equipped with the raised 4a being adapted to crotch structure 1b1, when two clamping limbs 1a, 1b are in locked closed position, two foldersThe crotch structure of gripping arm 1a, 1b tail end is buckled in protrusion.I.e. on this position, clamping limb 1a, 1b will not open again.
As shown in figure 4, continue to pull back operating rope 14, when the pulling force applied on buckle 6 reaches preset value 20-30N,6 generation deformation of buckle stretches so that buckling 6 disengaging card slots 15, fixed seat 4 and transition cap 8 are mutually disengaged.
As shown in figure 5, continuing to pull back operating rope 14, when the pulling force applied on steel wire buckle 5 reaches preset value 35-40NWhen, steel wire buckle 5 generates deformation and stretches and the disengaging of active pin shaft 3.
Further, the side wall of two clamping limbs 1a, 1b by distal end to proximal end in gradually wide structure.
Further, sliding slot 1c, 1d is with cambered sliding slot.
In use, by insulation hemostatic clamp bulk transport to lesion designated position under the Lookout assist effect of endoscope, such asGastral pedicle skin flap polypus can carry out folder in advance in root and close, art medium vessels bleeding be prevented, simultaneously as hemostatic clamp has absolutelyEdge function, electric current will not be reached the other end and cause electric injury by electric snare touching clamp arm in art.Secondly, endoscopic minimally-invasiveBleeding occurs in surgical procedure, sliding block at handle can be promoted, make binding clip open simultaneously rotate core bar take the lead binding clip rotate, can andWhen to stopping blooding at bleeding.
Embodiment 2
As shown in figure 9, the present embodiment is based on embodiment 1, the present embodiment difference from example 1 is that, folderThe inner surface of gripping arm 1a, 1b also covers multilayer silica gel 18, the number of plies of the number of plies and the outer surfaces clamping limb 1a, 1b silica gel 18 of silica gel 18It is identical.
Embodiment 3
The present embodiment based on embodiment 2, the present embodiment and embodiment 2 the difference is that, the periphery of fixed seat 4Face also covers multilayer silica gel 18, and the number of plies of silica gel 18 is identical as the number of plies of clamping limb 1a, 1b inner surface silica gel 18.Further,In order to improve insulation performance, also multilayer silica gel 18 can be covered in the peripheral surface of transition cap 8.
Although being above described in detail to the present invention with generality explanation and specific embodiment, at thisOn the basis of invention, it can be modified or is improved, this will be apparent to those skilled in the art.Therefore,These modifications or improvements without departing from theon the basis of the spirit of the present invention belong to the scope of protection of present invention.