CN201612640U - Breaking and sucking device for synchronous equivalent liquid replacement thrombosis - Google Patents
Breaking and sucking device for synchronous equivalent liquid replacement thrombosis Download PDFInfo
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- CN201612640U CN201612640U CN2010201127825U CN201020112782U CN201612640U CN 201612640 U CN201612640 U CN 201612640U CN 2010201127825 U CN2010201127825 U CN 2010201127825U CN 201020112782 U CN201020112782 U CN 201020112782U CN 201612640 U CN201612640 U CN 201612640U
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Abstract
The utility model discloses a breaking and sucking device for synchronous equivalent liquid replacement thrombosis, which comprises a sucking pipe for sucking thrombosis particles, a thrombolysis pipe for pressure-liquid washing, and an equivalent liquid synchronous replacement device. The front end of the sucking pipe is provided with a ring-shaped vesicle body, and the tail end is connected with a first end of a three-way pipe; the thrombolysis pipe is inserted into the sucking pipe, and sucking space is arranged between the thrombolysis pipe and the sucking pipe; a spraying head at the front end of the thrombolysis pipe stretches out of the front end of the sucking pipe; the tail end of the thrombolysis pipe passes through a second end of the three-way pipe to connect a connecting nozzle of an injection output end of the equivalent liquid synchronous replacement device; a third end of the three-way pipe is connected with another connecting nozzle of a sucking input end of the equivalent liquid synchronous replacement device through a connecting pipe; the ring-shaped vesicle body at the front end of the sucking pipe is communicated with a filling pipe. The device can synchronously conduct pressure-liquid washing for thrombolysis and sucking for particles of thrombolysis, and can ensure vein smoothness of thrombolysis site, can greatly increase efficiency of cleaning intravascular thrombosis, and save time for saving lives of patients and increasing clinical treatment effect.
Description
Technical field
This utility model relates to a kind of therapy equipment, particularly a kind of interior broken suction device of acute thrombotic synchronous equivalent liquid displacement thrombosis of blood vessel that is used for the treatment of.
Background technology
In the medical domain, no matter acute thrombosis in the blood vessel be cerebrovascular, cardiovascular, or peripheral blood vessel, all has high incidence, high mortality and high disability rate three big characteristics.Both at home and abroad at acute thrombosis in the early stage blood vessel, can get bolt, broken bolt, medicine thrombolytic by interventional therapy method and make revascularization, the recovery organization blood supply reduces disability rate and mortality rate.
At present, contact thrombolytic method in several blood vessels that adopted clinically, in actual application, all there are some technical deficiencies: 1) medicine thrombolytic: with injector for medical purpose thrombolytic drug is sent to the thromboembolism position in blood vessel by microcatheter technology, contact with thrombosis by thrombolytic drug and to impel thromboembolism, because the blood vessel at thromboembolism position is a dead space, thrombolytic drug can not arrive the far-end of embolus inside and embolus, only can work on the embolus surface, so thrombolytic speed is too slow, reach a few hours, time-consuming longer.2) the broken bolt of seal wire: on the basis of microcatheter technology contact medicine thrombolytic, by inserting seal wire in the conduit, utilize the seal wire head end to help to smash thrombosis to pieces, be damaged for avoiding blood vessel wall, conductive filament head adopts the softer material of material usually, because the seal wire head end is softer, broken bolt efficient is too low, and is consuming time still longer, if use the hard seal wire instead, though can improve broken bolt efficient, cause blood vessel injury probably, cause fatefulue hemorrhage.3) the thrombolysis catheter suction method of band side opening, this method is inserted suction catheter in the blood vessel or with thrombolytic drug and is delivered to the thromboembolism position, inject thrombolytic drug with injector for medical purpose earlier by same conduit, treat that the thrombosis part will be aspirated out by molten part from same conduit by molten back reuse injector for medical purpose, carry out so repeatedly, operate loaded down with trivial detailsly, have time-consuming long shortcoming equally.4) kissing ballon technique thrombolytic, this technology adopts blood flow before and after two sacculus blocking-up thromboembolisms position, inject thrombolytic drug by injector for medical purpose at the embolus position from same conduit side opening, after treating that thrombosis is partly dissolved, aspirate from same conduit side opening by injector for medical purpose, the shortcoming of this method is because the blood vessel distal displayed of thromboembolism is unclear again, and preposition sacculus is difficult for arriving predetermined position, and mainly rely on the medicine thrombolytic, same time-consuming longer.5) get the bolt device and get bolt: pass thrombosis by guiding wire guiding microtubular and arrive its far-end, replace guiding wire with getting the bolt device, the spiral loop of getting the bolt device launches at the thrombosis far-end, microtubular and get bolt device recession rank folder thrombosis, the sacculus of filling simultaneously blocking-up proximal arterial blood flow, continue the recession microtubular and make and get the bolt device and thrombi retreats in the guiding catheter, shift out external then.The shortcoming of the method is when blood vessel entirely shuts, and the embolus distal displayed is unclear, and guiding wire can not arrive preposition.The common weak point of above method is that thrombolytic efficient is lower, and is consuming time oversize, embolus molten logical after, the tissue of vascular embolization blood supply is long downright bad because of Ischemia Time, thereby loses therapeutic value, causes clinical thromboembolism treatment success rate lower, carries out not smooth.And carrying out separately in the aspiration procedure, the liquid that does not have in the blood vessel to replenish enters, and it is flat to cause blood vessel to collapse, and causes the tunica intima damage easily.
Summary of the invention
The purpose of this utility model is the deficiency that exists at prior art, provide a kind of synchronous equivalent liquid displacement thrombosis broken suction device, its suction catheter by being used for the aspirate thrombi particle, be used for thrombolysis catheter that pressure fluid washes away, etc. the combination of the synchronous displacement apparatus of quantity of fluid, can carry out the particle after pressure fluid washes away thrombolytic and aspirates out thromboembolism synchronously, guarantee thrombolytic place vascular patency, can greatly improve the efficient of removing thrombosis in the blood vessel, be the life of rescue patient, improve clinical therapeutic efficacy and race against time.Simultaneously can prevent to collapse flat because of the blood vessel that suction causes.
The purpose of this utility model is achieved in that and comprises the suction catheter that is used for the aspirate thrombi particle, be used for the thrombolysis catheter that pressure fluid washes away, Deng the synchronous displacement apparatus of quantity of fluid, the described suction catheter front end that is used for the aspirate thrombi particle is provided with the ring-type utricule that is used for blocking blood flow after the filling, the tail end that is used for the suction catheter of aspirate thrombi particle connects threeway first end, described be used for thrombolysis catheter that pressure fluid washes away insert the suction catheter that is used for the aspirate thrombi particle and and this suction catheter between leave suction space, the described injector head that is used for the thrombolysis catheter front end that pressure fluid washes away stretches out the suction catheter front end that is used for the aspirate thrombi particle, the tail end that is used for the thrombolysis catheter that pressure fluid washes away passes with the injection outfan connection that waits the synchronous displacement apparatus of quantity of fluid from threeway second end and is connected, seal between this thrombolysis catheter and threeway second end, threeway the 3rd end is connected with waiting the synchronous displacement apparatus suction of quantity of fluid input connection by connection tube; The described ring-type utricule that is used for the suction catheter front end of aspirate thrombi particle is communicated with a filling pipe, and this filling pipe is used to connect compression pump.
The described injector head that is used for the thrombolysis catheter front end that pressure fluid washes away is provided with a plurality of spray-holes, and the sectional area summation of these spray-holes is less than the sectional area of this thrombolysis catheter tube chamber.
The described injector head that is used for the thrombolysis catheter front end that pressure fluid washes away is coniform, and described a plurality of spray-holes are distributed in the front end and the sidepiece of this injector head.
Each diameter of described spray-hole is 0.1～0.3mm.
Synchronous displacement apparatus such as described quantity of fluid such as grade is a tubular cavity, injection outfan connection and suction input connection are located at this tubular cavity two ends respectively, a piston is located in the tubular cavity this tubular cavity is divided into pressure injection chamber and suction chamber, this piston thread is engaged on the screw rod, the rotating end wall that is supported in tubular cavity two ends in the two ends of screw rod, one end of screw rod stretches out end wall outward and connects driven gear, fix a motor on the described tubular cavity, driving gear on the motor shaft and driven gear engagement.
The described synchronous displacement apparatus of quantity of fluid that waits has independently tubular cavity of two difference, one of them is the pressure injection chamber, another is a suction chamber, the sectional area of pressure injection chamber and suction chamber equates, two tubular cavity secured in parallel arranged side by side are on a base, the suction input connection of the injection outfan connection in pressure injection chamber and suction chamber in the same way, a piston respectively is set in described pressure injection chamber and the suction chamber, one end of two screw rods stretches into respectively in the tubular cavity and is connected with piston, each threaded engagement one driven gear of the other end of two screw rods, one motor is fixed on the base, two driven gears lay respectively at driving gear both sides and the driving gear engagement on the motor shaft, one for turning clockwise, and one for being rotated counterclockwise.
The described synchronous displacement apparatus of quantity of fluid that waits has independently tubular cavity of two difference, two tubular cavity one ends are fixed on the base in opposite directions, one of them is the pressure injection chamber, another is a suction chamber, the sectional area of pressure injection chamber and suction chamber equates, the injection outfan connection in described pressure injection chamber is opposite with the direction of the suction input connection of suction chamber, a piston respectively is set in described pressure injection chamber and the suction chamber, the two ends of one tooth bar are stretched into respectively in pressure injection chamber and the suction chamber and are connected with piston, described tooth bar and the gears engaged between pressure injection chamber and suction chamber, two ends are rotating is supported on the bearing that is provided with on the base for the axle of described gear, driving gear engagement on the axle of this gear and motor, perhaps this gear is by being connected in parallel on driven gear and the engagement of the driving gear on the motor shaft on the same axle, and motor is fixed on the base.
The ratio of the internal diameter of the described suction catheter that is used for the aspirate thrombi particle and the external diameter that is used for the thrombolysis catheter that pressure fluid washes away was more than or equal to 2: 1.
Radius after the described ring-type utricule filling that is used for blocking blood flow and the ratio of the radius of the suction catheter that is used for the aspirate thrombi particle are less than 2: 1, greater than 1: 1.
Described filling pipe is positioned at the inwall of the suction catheter that is used for the aspirate thrombi particle, and the tail end of filling pipe stretches out from this suction catheter wall side, or filling pipe is positioned at the outer wall of the suction catheter that is used for the aspirate thrombi particle, and the tail end of described filling pipe is connected with compression pump.
Owing to adopted such scheme, be used for the aspirate thrombi particle suction catheter, be used for thrombolysis catheter that pressure fluid washes away, etc. the synchronous displacement apparatus of quantity of fluid be incorporated into the interior acute thrombotic removing of promoting the circulation of blood pipe, have the following advantages:
1. will be used for thrombolysis catheter that pressure fluid washes away insert the suction catheter that is used for the aspirate thrombi particle and and this suction catheter between leave suction space, and the injector head that is used for the thrombolysis catheter front end that pressure fluid washes away stretches out the suction catheter front end that is used for the aspirate thrombi particle, so both can make the different conduit of two root functionalitys in blood vessel, arrive the thrombosis position together, utilization is used for temporary interruption blood flow after the ring-type utricule filling of suction catheter front end of aspirate thrombi particle, be used for the thrombolytic medicinal liquid that thrombolysis catheter that pressure fluid washes away sprays simultaneously the thrombosis that forms is washed away thrombolytic, washing away the particle that falls is sucked away from the suction catheter that is used for the aspirate thrombi particle, be used in and remain unobstructedly between the injector head of the thrombolysis catheter front end that pressure fluid washes away and the thrombosis, accelerate thrombolytic speed.
2. the synchronous displacement apparatus of quantity of fluid such as employing, by waiting pressure injection chamber of the synchronous displacement apparatus of quantity of fluid, grant pressure thrombolytic medicinal liquid to being used for the thrombolysis catheter that pressure fluid washes away, thrombosis is washed away broken bolt, and in pressure injection, by waiting suction chamber of the synchronous displacement apparatus of quantity of fluid, the bolt grain and the medicinal liquid that wash away are drawn into suction chamber synchronously from the suction catheter that is used for the aspirate thrombi particle, formation is washed away and is aspirated synchronously and carry out thus, make the medicinal liquid and the bolt grain that wash away can not be trapped in the blood vessel, cause and wash away working environment and silt up and influence thrombolytic speed, thisly wash away synchronously, it is unobstructed that suction remains the working environment that washes away broken bolt, the time of removing thrombosis is shortened greatly, greatly improved thrombolytic efficient.And because of the sectional area of pressure injection chamber and suction chamber equates, make two chambeies carry out liquid when replacing synchronously in piston motion, the volume in pressure injection chamber reduces gradually, the volume of suction chamber with the pressure injection chamber volumetrical reduce and gradually equivalent increase, realize synchronous equivalent liquid displacement thus, allow simultaneously in time obtain liquid in the blood vessel and replenish, it is flat effectively to prevent to cause blood vessel to collapse in aspiration procedure, makes blood vessel remain normal condition in aspiration procedure.And etc. the injection/suction of the synchronous displacement apparatus of quantity of fluid by motor-driven, can injection/swabbing pressure be effectively controlled by the control motor speed.
3. the described ring-type utricule that is used for the suction catheter front end of aspirate thrombi particle is communicated with a filling pipe, this filling pipe is used to connect compression pump, after the front end of the suction catheter that is used for the aspirate thrombi particle arrives the thromboembolism position, by compression pump contrast agent is transported in the ring-type utricule by filling pipe, with the inflation of ring-type utricule, formation creates a thrombolytic working environment to the temporary interruption of blood flow in the blood vessel, is beneficial to washing away, aspirating of thrombolytic.Contrast agent in the ring-type utricule also can be known the position that demonstrates the suction catheter front end arrival that is used for the aspirate thrombi particle simultaneously.
4. the described injector head that is used for the thrombolysis catheter front end that pressure fluid washes away is provided with a plurality of spray-holes, the sectional area summation of these spray-holes is less than the sectional area of this thrombolysis catheter tube chamber, under the pressure injection that waits the synchronous displacement apparatus of quantity of fluid, the pressure of the pressure medicinal liquid that ejects from these spray-holes increases, can be with thrombosis gradually towards broken, be ground into tiny blood clot, until removing from blood vessel wall fully.And the injector head that is used for the thrombolysis catheter front end that pressure fluid washes away is coniform, described a plurality of spray-hole is distributed in the front end and the sidepiece of this injector head, utilize injector head front end and sidepiece spray-hole that thrombosis is washed away, enlarge and wash away the thrombolytic area, improve thrombolytic speed.
Adopt acute thrombotic being also advantageous in that in the broken suction device treatment of the synchronous equivalent liquid displacement of this utility model thrombosis blood vessel:
1) washes away broken bolt and the medicine thrombolytic carries out synchronously.
2) direct-view operation down can be understood the thromboembolism situation at any time.
3) handling good, can on the one hand by the stepping motor on-off control, select to be interrupted or to carry out continuously according to thromboclastic complexity; Adjust the dynamics of washing away within the specific limits by the control step motor speed on the other hand.
4) need not to change the suction catheter position, thrombolysis catheter can advance to the thrombosis far-end steadily according to the thromboembolism situation, can carry out continuously, has saved a large amount of time.
5) as long as maximum pressure is controlled at and is no more than 300Kpa, the always synchronous equivalent of the liquid of extraction and the liquid of injection so intravascular pressure is constant, can not cause vascular damaged.
6) because of intravascular pressure is constant, so in the thrombolytic process, can not cause thrombosis to be shifted because of intravascular pressure increases to distal vessels.
7) thrombolytic drug is inhaled in the suction chamber after the effect of thrombosis position and discards, and to the almost not influence of whole body coagulation function, thereby can strengthen drug level, improves thrombolytic efficient.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of suction catheter and filling pipe;
Fig. 3 is the structural representation of thrombolysis catheter;
Fig. 4 is for waiting a kind of embodiment of the synchronous displacement apparatus of quantity of fluid;
Fig. 5 is for waiting another embodiment of the synchronous displacement apparatus of quantity of fluid;
Fig. 6 is for waiting another embodiment of the synchronous displacement apparatus of quantity of fluid;
In the accompanying drawing, 1 is thrombolysis catheter, and 2 is the ring-type utricule, 3 is filling pipe, and 4 is compression pump, and 5 are threeway, 6 for waiting synchronous displacement apparatus of quantity of fluid, and 7 is connection tube, and 8 is suction catheter, 9 is blood vessel, and 10 is thrombosis, and 11 is the tubular cavity, 12 is the pressure injection chamber, and 13 is suction chamber, and 14a is injection outfan connection, 14b is suction input connection, and 15 is piston, and 16 is screw rod, 17 is driven gear, and 18 is motor, and 19 is driving gear, 20 is bearing, and 21 is base, and 22 is supporting seat, 23 is bearing, and 24 is tooth bar, and 25 is gear, 26 is axle, and 27 is spray-hole.
The specific embodiment
Fig. 1 to Fig. 4 is a kind of embodiment of the broken suction device of synchronous equivalent liquid displacement thrombosis, and the broken suction device of this synchronous equivalent liquid displacement thrombosis comprises: be used for the aspirate thrombi particle suction catheter 8, be used for thrombolysis catheter 1 that pressure fluid washes away, etc. the synchronous displacement apparatus 6 of quantity of fluid etc.The described suction catheter 8 that is used for the aspirate thrombi particle is the medical plastic pipe, the front end of this suction catheter 8 is provided with the ring-type utricule 2 that is used for blocking blood flow after the filling, radius after described ring-type utricule 2 fillings that are used for blocking blood flow and the ratio of the radius of the suction catheter 8 that is used for the aspirate thrombi particle are less than 2: 1, greater than 1: 1; By being pasted and fixed on the front end of suction catheter 8, perhaps this ring-type utricule 2 is fixed on the front end of suction catheter 8 by heat seal to this ring-type utricule 2 around suction catheter, this ring-type utricule 2 also can with the suction catheter global formation; The described tail end that is used for the suction catheter 8 of aspirate thrombi particle connects threeway 5 first ends.Describedly be used for the thrombolysis catheter 1 that pressure fluid washes away and be medical plastic catheter, this be used for thrombolysis catheter 1 that pressure fluid washes away insert the suction catheter 8 that is used for the aspirate thrombi particle and and this suction catheter between leave suction space.The ratio of the internal diameter of the described suction catheter 8 that is used for the aspirate thrombi particle and the external diameter that is used for the thrombolysis catheter 1 that pressure fluid washes away was more than or equal to 2: 1.The described front end that is used for the thrombolysis catheter 1 that pressure fluid washes away is provided with injector head 1a, injector head 1a and be used for the thrombolysis catheter 1 that pressure fluid washes away and be overall structure, this injector head 1a is provided with a plurality of spray-holes 27, the sectional area summation of these spray-holes 27 is less than the sectional area of this thrombolysis catheter 1 tube chamber, and each diameter of spray-hole 27 is 0.1～0.3mm; Described injector head 1a is coniform, and a plurality of spray-holes 27 are distributed in front end and the sidepiece of this injector head 1a.The described injector head 1a that is used for thrombolysis catheter 1 front end that pressure fluid washes away stretches out suction catheter 8 front ends that are used for the aspirate thrombi particle, the tail end that is used for the thrombolysis catheter 1 that pressure fluid washes away passes with the injection outfan connection 14a that waits the synchronous displacement apparatus 6 of quantity of fluid from threeway 5 second ends and is connected, and seals between this thrombolysis catheter 1 and threeway 5 second ends.Described threeway 5 the 3rd end is connected with the suction input connection 14b that waits the synchronous displacement apparatus 6 of quantity of fluid by connection tube 7.It is good that the threeway of Y valve is adopted in described threeway 5.The described ring-type utricule 2 that is used for suction catheter 8 front ends of aspirate thrombi particle is communicated with a filling pipe 3, this filling pipe 3 is positioned at the inwall of the suction catheter 8 that is used for the aspirate thrombi particle, the tail end of filling pipe 3 stretches out from this suction catheter wall side, or being positioned at the outer wall of the suction catheter 8 that is used for the aspirate thrombi particle, the tail end of filling pipe 3 is used to connect compression pump 4.The diameter of described filling pipe 3 is far smaller than the diameter of suction catheter 8, and filling pipe 3 both can be global formation structure, the also structure that can separate with the suction catheter 8 that is used for the aspirate thrombi particle.Synchronous displacement apparatus 6 such as described quantity of fluid such as grade is a tubular cavity 11, injection outfan connection 14a and suction input connection 14b are located at this tubular cavity 11 two ends respectively, a piston 15 is located in the tubular cavity this tubular cavity is divided into pressure injection chamber 12 and suction chamber 13, these piston 15 threaded engagement are on a screw rod 16, the rotating end wall that is supported in tubular cavity 11 two ends in the two ends of screw rod 16, one end of screw rod 16 stretches out the fixedly connected driven gear 17 of end wall outward, fix a motor 18 on the described tubular cavity 11, driving gear 19 on 18 in the motor and driven gear 17 engagements.The bearing 20 of described motor 18 and the 11 outer wall settings of tubular cavity perhaps tightens together motor 18 and tubular cavity 11 with pricking hoop by connecting and fixing.
When the broken suction device of the synchronous equivalent liquid displacement thrombosis of this structure is worked, the suction catheter 8 that will be used for the aspirate thrombi particle inserts in the blood vessel 9, make its front end send to thrombosis 10 formation place, to be used for the thrombolysis catheter 1 that pressure fluid washes away and in the suction catheter 8 that is used for the aspirate thrombi particle, send to thrombosis 10 formation, in filling pipe 3, grant the pressure develoment agent by compression pump 4, be used in the aspirate thrombi particle suction catheter 8 front ends ring-type utricule 2 to around tympanites, the endovascular blood flow of temporary interruption, while starter motor 18, motor drives screw rod 16 rotations by gear drive, the screw rod rotation makes with it, and the piston 15 of threaded engagement moves to pressure injection chamber 12 along screw axial, the thrombolytic medicinal liquid that is equipped with in the pressure injection chamber 12 and contrast agent be pressed into be used for the thrombolysis catheter 1 that pressure fluid washes away, thrombolytic medicinal liquid and contrast agent are ejected from the injector head 1a end face and the lateral spray-hole 27 of thrombolysis catheter 1 front end, thrombosis pressure is washed away, thus with thrombosis from intravascular space towards broken, decompose, thrombosis is ground into tiny blood clot; Meanwhile, because piston moves to pressure injection chamber 12, suction chamber 13 forms negative pressure, will be drawn in the suction chamber in lumen of vessels towards broken, blood clot that decomposes and the thrombolytic medicinal liquid that ejects etc., removes silting up in the lumen of vessels.Carry out thrombolytic, broken bolt because of adopting the pressure medicinal liquid to wash away, compare with the thrombolytic apparatus and the thrombolytic mode of prior art, its speed of removing thrombosis improves greatly; Especially in thrombolytic, broken bolt, wash away the blood clot that smashes and thrombolytic medicinal liquid from the suction catheter 8 that is used for the aspirate thrombi particle by in the suction chamber 13 of the synchronous displacement apparatus 6 of quantity of fluid such as being drawn into synchronously, make and wash away work surface and can not form and silt up, guarantee the unobstructed of the interior working environment of blood vessel, the speed of washing away broken bolt is got a greater increase, and wash away broken bolt and carry out synchronously with suction, eliminated prior art injection thrombolytic liquid and extracted out between the thrombolytic liquid and hocketed the shared time, greatly shortened, for rescue patient gains time the time of removing thrombosis.
Referring to Fig. 5, this utility model not only is confined to the foregoing description, the synchronous displacement apparatus 6 of quantity of fluid that waits that it adopted also can be set to have two difference independently tubular cavity 11a, 11b, one of them is pressure injection chamber 12, another is a suction chamber 13, two tubular cavity 11a, 11b secured in parallel arranged side by side are on a base 21, can adopt anchor ear or screw to fix, the suction input connection 14b of the injection outfan connection 14a in pressure injection chamber 12 and suction chamber 13 in the same way, the sectional area of described pressure injection chamber 12 and suction chamber 13 equates.Piston 15a, a 15b respectively are set in described pressure injection chamber 12 and the suction chamber 13, the end of two screw rod 16a, 16b stretches into respectively in tubular cavity 11a, the 11b and is connected with piston 15a, 15b, the other end of two screw rod 16a, 16b each threaded engagement one driven gear 17a, 17b, one motor 18 is fixed on the base 21 by screw, two driven gear 17a, 17b lay respectively at driving gear 19 both sides and the driving gear engagement on 18 in the motor, one for turning clockwise, and one for being rotated counterclockwise.The axial two ends of described two driven gears are equipped with support sleeve, and this support sleeve is supported on the base 21 on the fixed supporting seat 22 by bearing 23, screw rod and driven gear threaded engagement and Extension support axle sleeve.
Adopt present embodiment, drive two driven gears simultaneously by a motor and do relative reverse rotation, two driven gears are respectively by the screw drive pressure injection chamber 12 of threaded engagement and the piston of suction chamber 13 are done opposite the moving axially of direction synchronously with it, thus the thrombolytic medicinal liquid that is equipped with in the pressure injection chamber 12 and contrast agent are pressed into and are used for the thrombolysis catheter 1 that pressure fluid washes away, thrombolytic medicinal liquid and contrast agent are ejected from the injector head 1a end face and the lateral spray-hole 27 of thrombolysis catheter 1 front end, thrombosis pressure is washed away, with thrombosis from intravascular space towards broken, decompose; Meanwhile, suction chamber 13 forms negative pressure, will be drawn in the suction chamber in lumen of vessels towards broken, blood clot that decomposes and the thrombolytic medicinal liquid that ejects etc., removes silting up in the lumen of vessels.Because of adopting motor synchronous to drive two pistons motions, can guarantee that the synchronicity of two piston reverses direction motions is guaranteed, and the adjustment of pressure only needs also this rotating speed of motor of control just can realize that control, adjustment are simply.
Referring to Fig. 6, this utility model can also adopt another embodiment, the synchronous displacement apparatus 6 of quantity of fluid that waits that it adopted has independently tubular cavity 11a of two difference, 11b, two tubular cavity 11a, 11b one end is fixed on the base 21 in opposite directions, one of them is pressure injection chamber 12, another is a suction chamber 13, the sectional area of pressure injection chamber 12 and suction chamber 13 equates, the injection outfan connection 14a in described pressure injection chamber 12 is opposite with the direction of the suction input connection 14b of suction chamber 13, a piston 15 respectively is set in described pressure injection chamber 12 and the suction chamber 13, the two ends of one tooth bar 24 are stretched into respectively in pressure injection chamber 12 and the suction chamber 13 and are connected with piston 15, described tooth bar 24 and a gear 25 engagements between pressure injection chamber and suction chamber, axle 26 two ends of described gear 25 are rotating to be supported on the supporting seat 22 that is provided with on the base 21, driving gear 19 engagements on the axle of this gear 25 and motor 18, perhaps this gear 25 is by being connected in parallel on driving gear 19 engagements on 18 in driven gear 17 and the motor on the same axle 26, and motor 18 is fixed on the base 21.
Adopt present embodiment, with two difference independently pressure injection chamber 12 and suction chamber 13 tail end in opposite directions, with the two ends of a toothed rack respectively be located at pressure injection chamber 12 and be connected with piston in the suction chamber 13, this tooth bar with by a motor-driven gears engaged, driving tooth bar by motor-driven gear moves to pressure injection chamber 12 directions, piston in pressure injection chamber 12 and the suction chamber 13 is moved to same direction synchronously, the thrombolytic medicinal liquid that is equipped with in the pressure injection chamber 12 and contrast agent be pressed into be used for the thrombolysis catheter 1 that pressure fluid washes away, thrombolytic medicinal liquid and contrast agent are ejected from the injector head 1a end face and the lateral spray-hole 27 of thrombolysis catheter 1 front end, thrombosis pressure is washed away, with thrombosis from intravascular space towards broken, decompose; Meanwhile, suction chamber 13 forms negative pressure, will be drawn in the suction chamber in lumen of vessels towards broken, blood clot that decomposes and the thrombolytic medicinal liquid that ejects etc., removes silting up in the lumen of vessels.Because of adopting motor synchronous to drive two pistons motions, can guarantee that the synchronicity of two piston reverses direction motions is guaranteed, and the adjustment of pressure only needs also this rotating speed of motor of control just can realize that control, adjustment are simply.
This utility model not only is confined to the foregoing description, when described equivalent liquid displacement cavity adopts two tubular cavity one ends to be fixed on the base in opposite directions, the piston that is provided with respectively in described pressure injection chamber and the suction chamber, also can link to each other by a screw rod, the two ends of screw rod respectively with the pressure injection chamber in piston, be connected with the piston in the suction chamber is relatively turnable, the drive mechanism that the driven gear that is provided with the screw thread circle center hole cooperates with screw flight, driven gear two axial ends by bearings on the supporting seat that is fixed on the base, driving gear engagement on this driven gear and the step motor shaft, the axle of motor is parallel with screw axial, can play the effect of adopting rack and pinion to cooperate equally, realize synchronous equivalent liquid displacement.
Claims (10)
1. broken suction device of synchronous equivalent liquid displacement thrombosis, it is characterized in that: comprise the suction catheter that is used for the aspirate thrombi particle, be used for the thrombolysis catheter that pressure fluid washes away, Deng the synchronous displacement apparatus of quantity of fluid, the described suction catheter front end that is used for the aspirate thrombi particle is provided with the ring-type utricule that is used for blocking blood flow after the filling, the tail end that is used for the suction catheter of aspirate thrombi particle connects threeway first end, described be used for thrombolysis catheter that pressure fluid washes away insert the suction catheter that is used for the aspirate thrombi particle and and this suction catheter between leave suction space, the described injector head that is used for the thrombolysis catheter front end that pressure fluid washes away stretches out the suction catheter front end that is used for the aspirate thrombi particle, the tail end that is used for the thrombolysis catheter that pressure fluid washes away passes with the injection outfan connection that waits the synchronous displacement apparatus of quantity of fluid from threeway second end and is connected, seal between this thrombolysis catheter and threeway second end, threeway the 3rd end is connected with waiting the synchronous displacement apparatus suction of quantity of fluid input connection by connection tube; The described ring-type utricule that is used for the suction catheter front end of aspirate thrombi particle is communicated with a filling pipe, and this filling pipe is used to connect compression pump.
2. the broken suction device of synchronous equivalent liquid displacement thrombosis according to claim 1, it is characterized in that: the described injector head that is used for the thrombolysis catheter front end that pressure fluid washes away is provided with a plurality of spray-holes, and the sectional area summation of these spray-holes is less than the sectional area of this thrombolysis catheter tube chamber.
3. the broken suction device of synchronous equivalent liquid displacement thrombosis according to claim 2 is characterized in that: the described injector head that is used for the thrombolysis catheter front end that pressure fluid washes away is coniform, and described a plurality of spray-holes are distributed in the front end and the sidepiece of this injector head.
4. according to claim 2 or the broken suction device of 3 described synchronous equivalent liquid displacement thrombosis, it is characterized in that: each diameter of described spray-hole is 0.1～0.3mm.
5. the broken suction device of synchronous equivalent liquid displacement thrombosis according to claim 1, it is characterized in that: synchronous displacement apparatus such as described quantity of fluid such as grade is a tubular cavity, injection outfan connection and suction input connection are located at this tubular cavity two ends respectively, a piston is located in the tubular cavity this tubular cavity is divided into pressure injection chamber and suction chamber, this piston thread is engaged on the screw rod, the rotating end wall that is supported in tubular cavity two ends in the two ends of screw rod, one end of screw rod stretches out end wall outward and connects driven gear, fix a motor on the described tubular cavity, driving gear on the motor shaft and driven gear engagement.
6. the broken suction device of synchronous equivalent liquid displacement thrombosis according to claim 1, it is characterized in that: the described synchronous displacement apparatus of quantity of fluid that waits has independently tubular cavity of two difference, one of them is the pressure injection chamber, another is a suction chamber, the sectional area of pressure injection chamber and suction chamber equates, two tubular cavity secured in parallel arranged side by side are on a base, the suction input connection of the injection outfan connection in pressure injection chamber and suction chamber in the same way, a piston respectively is set in described pressure injection chamber and the suction chamber, one end of two screw rods stretches into respectively in the tubular cavity and is connected with piston, each threaded engagement one driven gear of the other end of two screw rods, one motor is fixed on the base, two driven gears lay respectively at driving gear both sides and the driving gear engagement on the motor shaft, one for turning clockwise, and one for being rotated counterclockwise.
7. the broken suction device of synchronous equivalent liquid displacement thrombosis according to claim 1, it is characterized in that: the described synchronous displacement apparatus of quantity of fluid that waits has independently tubular cavity of two difference, two tubular cavity one ends are fixed on the base in opposite directions, one of them is the pressure injection chamber, another is a suction chamber, the sectional area of pressure injection chamber and suction chamber equates, the injection outfan connection in described pressure injection chamber is opposite with the direction of the suction input connection of suction chamber, a piston respectively is set in described pressure injection chamber and the suction chamber, the two ends of one tooth bar are stretched into respectively in pressure injection chamber and the suction chamber and are connected with piston, described tooth bar and the gears engaged between pressure injection chamber and suction chamber, two ends are rotating is supported on the bearing that is provided with on the base for the axle of described gear, driving gear engagement on the axle of this gear and motor, perhaps this gear is by being connected in parallel on driven gear and the engagement of the driving gear on the motor shaft on the same axle, and motor is fixed on the base.
8. the broken suction device of synchronous equivalent liquid displacement thrombosis according to claim 1 is characterized in that: the ratio of the internal diameter of the described suction catheter that is used for the aspirate thrombi particle and the external diameter that is used for the thrombolysis catheter that pressure fluid washes away was more than or equal to 2: 1.
9. the broken suction device of synchronous equivalent liquid displacement thrombosis according to claim 1 is characterized in that: the radius after the described ring-type utricule filling that is used for blocking blood flow and the ratio of the radius of the suction catheter that is used for the aspirate thrombi particle are less than 2: 1, greater than 1: 1.
10. the broken suction device of synchronous equivalent liquid displacement thrombosis according to claim 1, it is characterized in that: described filling pipe is positioned at the inwall of the suction catheter that is used for the aspirate thrombi particle, the tail end of filling pipe stretches out from this suction catheter wall side, or filling pipe is positioned at the outer wall of the suction catheter that is used for the aspirate thrombi particle, and the tail end of described filling pipe is connected with compression pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201127825U CN201612640U (en) | 2010-02-11 | 2010-02-11 | Breaking and sucking device for synchronous equivalent liquid replacement thrombosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201127825U CN201612640U (en) | 2010-02-11 | 2010-02-11 | Breaking and sucking device for synchronous equivalent liquid replacement thrombosis |
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| Publication Number | Publication Date |
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| CN201612640U true CN201612640U (en) | 2010-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201127825U Expired - Fee Related CN201612640U (en) | 2010-02-11 | 2010-02-11 | Breaking and sucking device for synchronous equivalent liquid replacement thrombosis |
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| CN (1) | CN201612640U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319097A (en) * | 2011-08-04 | 2012-01-18 | 东莞永胜医疗制品有限公司 | Thrombus aspiration catheter and using method thereof |
| CN104997550A (en) * | 2015-02-15 | 2015-10-28 | 首都医科大学宣武医院 | Automatic thrombolysis system for blood vessels |
| CN107639086A (en) * | 2017-10-31 | 2018-01-30 | 深圳盛航科技有限公司 | A kind of liquid knife |
| WO2018218420A1 (en) * | 2017-05-27 | 2018-12-06 | 董涛 | Visualization cleaning device suitable for micro tube |
| CN109009537A (en) * | 2018-06-27 | 2018-12-18 | 新乡医学院 | A kind of animal blood vessels inner film injury experimental provision |
| CN114983518A (en) * | 2017-06-30 | 2022-09-02 | 上海蓝脉医疗科技有限公司 | Mechanical thrombus removing device |
-
2010
- 2010-02-11 CN CN2010201127825U patent/CN201612640U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319097A (en) * | 2011-08-04 | 2012-01-18 | 东莞永胜医疗制品有限公司 | Thrombus aspiration catheter and using method thereof |
| CN104997550A (en) * | 2015-02-15 | 2015-10-28 | 首都医科大学宣武医院 | Automatic thrombolysis system for blood vessels |
| CN104997550B (en) * | 2015-02-15 | 2019-11-15 | 首都医科大学宣武医院 | Automatic thrombolysis system for blood vessels |
| WO2018218420A1 (en) * | 2017-05-27 | 2018-12-06 | 董涛 | Visualization cleaning device suitable for micro tube |
| CN114983518A (en) * | 2017-06-30 | 2022-09-02 | 上海蓝脉医疗科技有限公司 | Mechanical thrombus removing device |
| CN107639086A (en) * | 2017-10-31 | 2018-01-30 | 深圳盛航科技有限公司 | A kind of liquid knife |
| CN109009537A (en) * | 2018-06-27 | 2018-12-18 | 新乡医学院 | A kind of animal blood vessels inner film injury experimental provision |
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