Varication strips off pull aidTechnical field
The present invention relates to the structure of IPC classification A61B17/00 surgical instruments or A61B17/32 surgical cutting instruments to improve skillArt, especially varication strip off pull aid.
Background technology
Varication refers to that caused vein is tortuous, expansion due to factors such as hypostasis, vein tube wall weaknesses.BodyVaricose can occur for the vein at multiple positions, for example hemorrhoid are exactly a kind of varication in fact, clinical visible also gastric and esophagealBottom varication, varicocele and subcutaneous varicos vein of abdominal wall etc..The position that varication occurs most frequently is in lower limb.It is worth strongAdjust, varication is the secondary manifestation of other lesions.The reason for causing varix of lower limb, is a lot, and most common is simpleProperty superficial veins of lower limb varicose, its Etiological be stock saphena valve insufficiency.Another Important cause of disease sees primaryProperty Deep Vein Valve Insufficiency of Lower Extremity (PDVI), because it often merges great saphenous vein valve insufficiency, shows superficial moreThe tortuous expansion of vein.In addition, syndrome after Lower limb deep venous thrombosis, because Deep venou backflow is not smooth, occurs superficial veinThe tortuous expansion of compensatory；Lower limb arteriovenous fistula, Klippel-Trenaunay syndrome can also have superficial veins of lower limb varicose performance；UnderVena cava return is obstructed, and such as Bgudd-Chiari Syndrome, may also lead to varix of lower limb.Varication is common peripheral vessels diseaseDisease, lower limb great saphenous vein or varix of small saphenous vein are common in, it is bent in the silt of earthworm shape to show as superficial veins of lower limb.These usual veinsInterior valve corrupted, also, not only can not normal blood back, backflow of blood or local endless loop can be caused on the contrary, so as to drawPlaying blood supply site tissue tends to necrosis.
The treatment of varix of lower limb is roughly divided into three kinds：The first is expectant treatment：So-called expectant treatment is mainly logicalMethod (such as medicine and stretch socks) the treatment disease of No operation is crossed, it is only effective to slight great saphenous varicose vein；It is for secondHardening treating：Curing agent is injected into cirso-, makes wall of vein that aseptic inflammation occur by the excitant of medicine and reactsAnd occur occlusion, so as to reach cirso- occlusion purpose, but treat after great saphenous varicose vein high recurrence rate；The third isOperative treatment：Operative treatment includes the processing to great saphenous vein trunk and the processing to lower limb superficial vein varicose agglomerate, forThe art formulas such as great saphenous vein trunk can be stripped off using high ligation, coagulation, RF ablation or laser are stripped off or closed；It is quiet for lower limbArteries and veins varicose agglomerate can use injection of sclerosing agent, stylet strip off or varicose agglomerate coagulation etc..High ligation strips off great saphenous vein masterDry is most thoroughly treatment method.
In the prior art, treatment varication method is by great saphenous vein root high ligation, to the great saphenous vein of lesionAnd the branch vein of varicose implements endarterectomy.Corresponding patent document discloses less.
The varication stripper of Chinese patent application 201710153193.8, spirally-guided head end (1) pass through plastics seal wire(2) tail end (4) is connected, there are at least four spacing blocks (3) on plastics seal wire (2), spherical crown clamping stripping head (5) is by mutually axiallyThe circle crown head (5-1) and round platform seat (5-2) of inlay card connection are formed, and are had at the axially middle part of circle crown head (5-1) and round platform seat (5-2)The outer wall of centre bore (5-4), circle crown head (5-1) and round platform seat (5-2) to there is one of opening side channel respectively between centre bore (5-4)(5-3)。
Chinese patent application 201521007195.9 is related to a kind of varication and strips off conduit, including conduit, conduit it is outerSide wall is provided with one layer of hydrophilic coating, is provided with session A in conduit, session A madial wall is provided with reflection wall, and session A left end is setThere is convex lens A, conduit left side head end is provided with printing opacity top guide, is provided with session B in printing opacity top guide, printing opacity top guide is provided with string holes, ledThe right-hand member of pipe side wall is provided with a circle retaining wall, and conduit right-hand member is provided with magnet piece, and the right-hand member of magnet piece is provided with light source emitter, light source hairThe left end face of emitter is provided with groove, and the center of groove is provided with session C, and session C left end is provided with transparent glass, sessionC right-hand member is provided with LED, and session C midpoint is provided with convex lens B, and the right side of LED is provided with battery compartment, carried out using light sourceSubcutaneous positioning, while the length of the cirso- stripped off can be accurately measured, hydrophilic coating can substantially reduce conduit withThe frictional force of blood vessel and edge of a knife section tissue.
A kind of varication that Chinese patent application 201420597849.7 provides strips off wire, including polyamide is stripped off and ledLine (1), straight peen end (2), pigtail-shaped complications terminal (3), the first fixing terminal (4) and the second fixing terminal (5), the straight peen end(2), pigtail-shaped complications terminal (3) is respectively arranged on polyamide and strips off wire (1) both ends, first fixing terminal (4) and secondFixing terminal (5) is socketed on polyamide and stripped off in the middle part of wire (1) respectively.
Chinese patent application 201420284823.7 is related to a kind of varication and strips off conduit, including pull rope, handle andStripping head, pull rope both ends are fixed with joint, and the stripping head includes stripping head body and dop, and stripping head body is provided with verticalTo fitting recess, the center of stripping head body is provided with the circular hole concentric with fitting recess, and circular hole connects with longitudinal fitting recess, Circularhole diameterLess than bond diameter, at least provided with a pair of necks at left and right sides of longitudinal fitting recess；The dop includes voussoir and is located at wedgeThe fixture block of block both sides, the dop are coordinated to be fixedly mounted in longitudinal fitting recess by fixture block and neck.With dop and neckTo fix blood vessel and stripping head, it instead of in traditional operation and fix blood vessel and stripping head with surgical thread, can effectively shorten handThe art time, farthest mitigate pain and the bleeding time of patient.
Chinese patent application 201620739062.9 is related to a kind of two-chamber varication and strips off conduit, including strips off conduit(1) terminal (2) and intermediate cavity (3), are stripped off, the conduit (1) that strips off is double channel catheter, is provided with intermediate cavity (3), strips offTerminal (2) is located at the distal end for stripping off conduit (1).Two-chamber varication described in the utility model strips off conduit, simple in construction,Easily operated grasp, use the two-chamber varication to strip off conduit and ruling by law treatment varix of lower limb is stripped off with high ligation, it is big hiddenMain venous trunk percent of pass is high, strips off thoroughly, lower limb otch quantity is reduced, so as to shorten operating time.
The special apparatus that strips off can be used in common endarterectomy using a stainless steel wire as seal wire, on seal wire medium positionTwo stripping heads in cup head cylinder are fixed with, closely or distally inserts in the limbs great saphenous vein of incision, is cut in the other endMouthful export, tightened by slowly pulling in the vein of cup head cylinder stripping head, along different directions pull advance, reach varus orThe outer vein for stripping off lesion.During varication endarterectomy is implemented, typically encountering patient needs to expend large force by diseaseThe vein for becoming varicose tears out from subcutaneous and intramuscular.Because many vein blood vessels and muscle adhesion are closer, it is necessary to makeIt can be torn and spun off with large force.In plastics seal wire stripper of the patient using more soft import, they are justSeal wire is wrapped on palm and pulls stripper.During this, the palm of patient can be strangled very tight by seal wire, very uncomfortable.And use the stripper of domestic steel wire seal wire, then it can only use the pull aid of a square.The square pull aid is in both handsWhen being stained with blood samples of patients, it is not easy to hold with a firm grip and operate very much, and cause efficiency low.
The content of the invention
It is an object of the invention to provide varication to strip off pull aid, solves technological deficiency existing for above-mentioned prior art,Mitigate patient trauma pain and surgical work intensity, shorten operating time, it is easy to operation.
The purpose of the present invention will be realized by following technical measures：Including handle, pull piece, thread pressing block, filament clamping slot, pressure-bearingBlock, cabin, knob and hold tooth；Cavity is provided with handle front upper part to stretch out this as cabin, cabin upper end open, pull piece upper end and openMouthful, pull piece bottom is connected by transmission mechanism with thread pressing block, and handle front lower portion is longitudinally provided with filament clamping slot, consolidates in filament clamping slot lower edgeDetermine pressure block, thread pressing block bottom surface is on filament clamping slot top, moreover, there is knob thread pressing block bottom surface, pressure block top surface holds tooth.
Especially, bearing pin is fixedly mounted in cabin upper lateral, and pull piece lower end connection cam, cam is arranged on bearing pin, convexTake turns bottom drive connection thread pressing block.
Especially, cabin upper end open front and back end sets limited block respectively.
Especially, chute is provided with the upside of thread pressing block, lower cam end is stretched out in double wedge insertion chute.
Especially, there are knob and indent in thread pressing block bottom surface, and groove is held on pressure block top surface and holds tooth, moreover, knob, pressureGroove corresponds to clamping or occlusion respectively with holding groove and holding tooth.
Especially, side is respectively along erectting to guide groove is provided with before and after handle front center, correspondence position difference on thread pressing blockGuide pillar is set, and guide pillar both ends are stuck in guide groove and slided.
Especially, bearing pin is fixedly mounted in cabin upper lateral, and cam is arranged on bearing pin, cam bottom drive connection silk pressingBlock；Installation motor and battery inside handle, motor and cam axis connection, pull piece connect motor and battery by circuit.Pressure blockTop surface or thread pressing block bottom surface installation occlusion force snesor.
Especially, cabin lower, transverse fixes sliding nail, and correspondence position is vertically provided with lifting groove up and down on thread pressing block, fixed to slideSlided in nail insertion lifting groove.
Especially, the longitudinally mounted longitudinal axis in the middle part of cabin, pull piece lower end are fixed with Double pin hinge joint chair, longitudinal direction on Double pin hinge joint chairParallel to be provided with two axis holes, the longitudinal axis is applied in one of axis hole, and Double pin hinge joint chair passes through the downward connecting hinge of another axis holePlate in succession, it is hinged connecting plate lower end and is hinged thread pressing block upper center, thread pressing block upper end front and rear part connects a spring respectively upwards, thisTwo spring upper ends are socketed in before and after Double pin hinge joint chair on the longitudinal axis of side respectively, or are fixed on the inwall of cabin.
Especially, pull piece front end is hinged on the bearing pin of handle front top, the be hinged connecting plate of pull piece underside of forward, hingeSpring is socketed outside plate in succession, be hinged connecting plate lower end is fixedly connected be hinged thread pressing block, meanwhile, it is fixed vertical on the upside of be hinged thread pressing blockAxle, lower spring end are against on the longitudinal axis.
Advantages of the present invention and effect：By setting transmission mechanism so that with easy manipulation and stabilization can be obtained during useTo the enough clamping forces of seal wire, assembly structure design is exquisite rationally, and operation is flexible, and easy to implement strip off is walked, tissue damageWound is few, mitigates pain and the bleeding time of patient, reduces wound face, and it is convenient that installation is changed, and improves the great saphenous vein for stripping off lesionAnd the branch vein accuracy efficiency of varicose, reduce operation risk.
Brief description of the drawings
Fig. 1 is the application structure schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the top view cross section structural representation of the embodiment of the present invention 1.
Fig. 3 is the right side structural representation of the embodiment of the present invention 1.
Fig. 4 is the main view mounting structure schematic diagram of the embodiment of the present invention 1.
Fig. 5 is that seal wire occlusal surface sets friction structure schematic diagram in the embodiment of the present invention 1.
Fig. 6 is stripe shape guide pillar structure schematic diagram in the embodiment of the present invention 1.
Fig. 7 is that motorized motions thread pressing block structural representation is installed in the embodiment of the present invention 2.
Fig. 8 is a kind of structural representation of thread pressing block slide-and-guide in the embodiment of the present invention 3.
Fig. 9 is a kind of attachment structure schematic diagram of thread pressing block and pull piece in the embodiment of the present invention 4.
Figure 10 is a kind of attachment structure schematic diagram of thread pressing block and pull piece in the embodiment of the present invention 5.
Reference includes：
Handle 1, pull piece 2, thread pressing block 3, filament clamping slot 4, seal wire 5, pressure block 6, cam 7, motor 8, battery 9, occlusion force snesor10th, rubber cushion 11, the longitudinal axis 12, spring 13, be hinged connecting plate 14, bearing pin 101, cabin 102, limited block 103, docking post 105, guide groove106th, sliding nail 107, pulling teeth 201, Double pin hinge joint chair 202, guide pillar 301, chute 302, knob 303, indent 304, lifting groove 305,Hold tooth 601, hold groove 602.
Embodiment
The principle of the invention is, extends and increases torque with handle beneficial to being related in the imitated structure of hand-held force, settingThe seal wire of stripper is clamped in fixed filament clamping slot with thread pressing block and pressure block, also, flexibly accurately keeps pressing friction effect.
The present invention includes：Handle 1, pull piece 2, thread pressing block 3, filament clamping slot 4, pressure block 6, cabin 102, knob 303 and hold tooth601。
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1：As shown in accompanying drawing 1,2 and 3, cavity is provided with the front upper part of handle 1 as cabin 102, the upper end of cabin 102The opening is stretched out in opening, the upper end of pull piece 2, and the bottom of pull piece 2 is connected by transmission mechanism with thread pressing block 3, the front lower portion of handle 1 longitudinal directionFilament clamping slot 4 is provided with, fixes pressure block 6 in the lower edge of filament clamping slot 4, the bottom surface of thread pressing block 3 is on the top of filament clamping slot 4, moreover, the bottom of thread pressing block 3There is knob 303 in face, and the top surface of pressure block 6 holds tooth 601.
In foregoing, bearing pin 101, the lower end of pull piece 2 connection cam 7 is fixedly mounted in the upper lateral of cabin 102, and cam 7 is arranged onOn bearing pin 101, the bottom of cam 7 drive connection thread pressing block 3.
In the embodiment of the present invention, as shown in Figure 4, bearing pin 101 is fixed with cabin 102, pull piece 2 and cam 7, which are fixed, to be connectedIt is arranged on after connecing on bearing pin 101.Moreover, the upper end open front and back end of cabin 102 sets limited block 103 respectively, before and after the upper end of pull piece 2Wall blocks respectively when rotating to be leaned against on two limited block 103, and is moved therebetween, to obtain the minimum and maximum opening of filament clamping slot 4.The upside of thread pressing block 3 is provided with chute 302, and the lower end of cam 7 is stretched out in double wedge insertion chute 302.The bottom surface of thread pressing block 3 have knob 303 withIndent 304, groove 602 is held on the top surface of pressure block 6 and holds tooth 601, moreover, knob 303, indent 304 are with holding groove 602 and holding tooth601 correspond to clamping or occlusion respectively.
In the embodiment of the present invention, as shown in Figure 6, side is respectively along erectting to guide groove is provided with before and after the front center of handle 1106.Correspondence position sets guide pillar 301 respectively on thread pressing block 3, and the both ends of guide pillar 301 are stuck in guide groove 106 and slided.
In the embodiment of the present invention, as shown in Figure 3, handle 1 is longitudinally fastened by two pieces of cover plates and formed, wherein, one piece of cover plateFront lower portion has filament clamping slot 4 and fixed pressure block 6, and another piece of cover forward end bottom is stuck in edge on filament clamping slot 4 after fastening.Such as accompanying drawingShown in 3, docking post 105 is set respectively on this two pieces of cover plates, so as to clamping, welding, fastened with realizing.Or this two pieces of cover platesInner side transverse direction equipment brace rod, integral by the firm welding of ultrasonic wave during fastening, two parts closely match, it is ensured that overallRigidity.
In the embodiment of the present invention, as shown in Figure 5, at least two are had on the bottom surface of thread pressing block 3 and the top surface of pressure block 6Rubber cushion 11 is installed by these fixing holes respectively on fixing hole, the bottom surface of thread pressing block 3 and the top surface of pressure block 6.Rubber cushion 11 be silica gel orPolyurethane material makes, and has preferable compliance and frictional force, respectively with knob 303, indent 304 or holding groove 602 and holding tooth601 surfaces fit like a glove.During ensuring use, the pressure of thread pressing block 3 is fully transmitted on rubber cushion 11 and seal wire 5.UsingWhen, enough gripping frictional force can be provided seal wire 5, while also provides seal wire preferably protection.Realize smoothly to pull and leadSilk 5, operate stripper.
In the embodiment of the present invention, there is palm profiling bumps facial contour at the handle edge of handle 1, and surface sets elastic gumNail, when wearing emgloves and speckling with blood, overall profile remains on the gripping of suitable patient.
The embodiment of the present invention is in use, as shown in Figure 1, by driving pull piece 2 to open filament clamping slot 4, seal wire 5 is caught inFilament clamping slot 4, operator grip handle 1 and exert a force F on the pulling teeth 201 of the upper end of pull piece 2 with thumb, and cam 7 passes through cunningAt least ＞ 2F torque is delivered on thread pressing block 3 by groove 302, under the knob 303 and indent 304 of the further bottom surface of thread pressing block 3Pressure is engaged in holding groove 602 and holding on tooth 601 for the top surface of pressure block 6, is separately mounted to knob 303 and holds the rubber cushion 11 on tooth 601Squeeze co-clip tight seal wire 5, transfer the pressure to stripper on harder plastics seal wire 5.After seal wire 5 is clamped, Bending DeformationThe larger frictional force of additional silica gel material so that seal wire 5 firmly can be clamped in pull aid.When seal wire 5 need not be clampedWhen, reverse operation pull piece 2, thread pressing block 3 will rise, and unclamp the seal wire 5 clamped.Clamping-release-is repeated to clamp again, justIt can be clamped on demand in the optional position of seal wire and implement to pull.
Embodiment 2：As shown in Figure 7, bearing pin 101 is fixedly mounted in the upper lateral of cabin 102, and cam 7 is arranged on bearing pin 101On, the bottom of cam 7 drive connection thread pressing block 3；The inside of handle 1 installation motor 8 and battery 9, motor 8 and the axis connection of cam 7, pull piece2 connect motor 8 and battery 9 by circuit.The top surface of pressure block 6 or the bottom surface of thread pressing block 3 installation occlusion force snesor 10.Wherein, it is electricPond 9 is rechargeable battery, or, battery 9 replaces with external power supply.
Embodiment 3：As shown in Figure 8, the lower, transverse of cabin 102, which is fixed, slides nail 107, on thread pressing block 3 above and below correspondence positionIt is vertical to be provided with lifting groove 305, slided in the fixed sliding insertion of nail 107 lifting groove 305.Thread pressing block 3 drives along lifting groove 305 in cam 7Moved up and down under dynamic.
Embodiment 4：As shown in Figure 9, the longitudinally mounted longitudinal axis 12 in the middle part of cabin 102, the lower end of pull piece 2 is fixed with dual-shaft articulationSeat 202, parallel longitudinal on Double pin hinge joint chair 202 to be provided with two axis holes, the longitudinal axis 12 is applied in one of axis hole, dual-shaft articulationBy the downward connecting hinge of another axis hole, plate 14, the be hinged lower end of connecting plate 14 are hinged the upper center of thread pressing block 3, silk pressing to seat 202 in successionThe upper end front and rear part of block 3 connects a spring 13 respectively upwards, before this two upper ends of spring 13 are socketed in Double pin hinge joint chair 202 respectivelyOn the longitudinal axis 12 of rear side, or it is fixed on the inwall of cabin 102.
In the embodiment of the present invention, under the open mode of pull piece 2, by the tension force effect of spring 13, thread pressing block 3 is positioned at topPosition, when in use, after seal wire 5 is caught in filament clamping slot 4, after pulling pull piece 2, axle hinged seat 202 rotates around the longitudinal axis 12 and promotes hingePlate 14 is moved down in succession, and further, thread pressing block 3 overcomes extension spring 13 to move down, and most seal wire 5 is pressed on pressure block 6 at last.
Embodiment 5：As shown in Figure 10, the front end of pull piece 2 is hinged on the bearing pin 101 of the front top of handle 1, before pull piece 2The be hinged connecting plate 14 in subordinate side, is hinged outside connecting plate 14 and is socketed spring 13, the be hinged lower end of connecting plate 14 is fixedly connected be hinged thread pressing block3, meanwhile, in the be hinged fixed longitudinal axis 12 in the upside of thread pressing block 3, the lower end of spring 13 is against on the longitudinal axis 12.
In the embodiment of the present invention, pull piece 2 is fulcrum with bearing pin 101, is overcoming the tension force effect of spring 13, when in use,After seal wire 5 is caught in filament clamping slot 4, after pulling pull piece 2, be hinged connecting plate 14 is promoted to move down, further, thread pressing block 3 overcomes spring 13Move down, and most seal wire 5 is pressed on pressure block 6 at last.
Embodiment above describes the general principle of the present patent application and principal character.Technology under the present patent application principleMeasure is not limited to above-described embodiment, on the premise of this patent spirit and scope are not departed from, the present invention also have various change andImprove, these changes and improvements are both fallen within the range of claimed this patent.