CN201743732U - Push-in screw-in pump for removing thrombus - Google Patents

Abstract

Translated fromChinese

本实用新型提供了一种除血栓用推进旋进注抽泵，它包括推进旋进体、滑动体、泵筒、泵筒座、活塞组件、角形齿扣和回位弹簧。其中的活塞组件包括顺序连成一体的推拉杆、活塞体和注抽杆，活塞体设置在泵筒内将泵筒的内腔分隔成前腔和后腔，前腔为注射腔，后腔为抽吸腔；注抽杆内设有互不相通的第一通道和第二通道；第一通道与注射腔连通；第二通道与抽吸腔连通。本实用新型的除血栓用推进旋进注抽泵配合介入式血栓刮除装置使用，可根据需要随时将从有血栓沉积的局部静脉段刮脱的血栓块排出体外。在抽吸碎血栓块的同时，注入等量的生理盐水或肝素，从而可以在有血栓沉积的局部静脉段内形成稳定的输入输出平衡。可根据需要实现旋进或推进，以方便控制注射液或抽吸液的流量。

The utility model provides a propelling screw-in injection pump for removing thrombus, which comprises a propelling screw-in body, a sliding body, a pump barrel, a pump barrel seat, a piston assembly, an angular tooth buckle and a return spring. The piston assembly includes a push-pull rod, a piston body and a pumping rod connected in sequence. The piston body is arranged in the pump barrel to divide the inner cavity of the pump barrel into a front cavity and a rear cavity. The front cavity is the injection cavity, and the rear cavity is the injection cavity. The suction cavity; the first channel and the second channel which are not connected to each other are arranged in the injection rod; the first channel communicates with the injection cavity; the second channel communicates with the suction cavity. The propulsive screw-injection pump for thrombus removal of the utility model is used in conjunction with an interventional thrombus scraping device, and the thrombus block scraped off from the local vein segment with thrombus deposition can be discharged from the body at any time as required. While aspirating the crushed thrombus, inject an equal amount of normal saline or heparin, so that a stable input-output balance can be formed in the local venous segment with thrombus deposition. It can be screwed in or forwarded as needed to facilitate the control of the flow of injection fluid or aspiration fluid.

Description

Remove thrombosis and take out pump with advancing precession to annotate

Technical field

This utility model relates to a kind of medical apparatus and instruments, relate in particular to a kind of with get involved to remove that the bolt operating theater instruments is used remove thrombosis with advancing the precession notes to take out pump.

Background technology

In recent years, people's deep vein thrombosis of lower extremity sickness rate presents and increases trend.Phlebothrombosis can cause the long-term swelling of lower limb, varicosis, and ulceration is not healed etc.Severe patient more, phlebothrombosis comes off and transfers to internal organs and also can cause fatal complication.For example, phlebothrombosis is transferred to pulmonary and deposition, can cause the death of patient's pulmonary infarction.Adopt Wicresoft's intervene operation therapy, small otch of percutaneous puncture inserts vein with the special bolt operating theater instruments of removing, and directly contacts thrombolytic and remove bolt under x-ray fluoroscopy.Compare with the surgical operation therapy of internal medicine pharmacotherapy and routine, Wicresoft's intervene operation therapy has instant effect, and patient's wound is little, is subjected to advantages such as phlebothrombosis deposition site effect of depth is little.

Through the literature search of prior art is found, the patent No. is that the Chinese utility model patent " vein Fogarty " (Granted publication number be CN2659350Y) of ZL200320121061.0 discloses a kind of vein Fogarty.This patent by stilet, get the bolt pipe andsacculus 3 parts constitute, advantage is not damaged vein valve for taking out the extremity deep venous thrombosis.The patent No. is that the Chinese utility model patent " Catheter for removing thrombus from blood vessel " (Granted publication number for CN2268496Y) of ZL96245233.5 discloses a kind of Catheter for removing thrombus from blood vessel.This patent is actually a kind of double channel catheter, and wherein a chamber links sacculus, is used to supply liquid or gas makes inflation; Another chamber is used for the blood jet flow.Whether the advantage of this patent arrives the thrombosis position for differentiating the conduit head end automatically.The patent No. is that the Chinese utility model patent " getting the bolt device " (Granted publication number for CN201042451Y) of ZL200620164685.4 discloses a kind of bolt device of getting.This patent adopts the umbrella-shaped structure that is made of memory alloy wire to carry out thrombosis and strikes off, and adopts the thrombosis after sleeve pipe will strike off to excrete.This patent adopts tinsel but not sacculus carries out thrombosis strikes off, and can improve and strike off effect.The common ground of above-mentioned 3 patents is: all directly employing makes it break away from from blood vessel except that the bolt element to the thrombosis application of force, whole removing in the bolt process has the sedimentary vein segment of thrombosis to be in open state fully, this makes the broken [piece that has broken away from from blood vessel partly to enter blood of human body and to transfer to other positions or internal organs along both direction, can not thoroughly be excreted, caused the danger of potential internal organs thromboembolism.

Application number is the conduit that the Chinese utility model patent " conduit of fetching intravascular thrombus in human internal organ " (publication number is CN1072867A) of 92106702.X discloses a kind of fetching intravascular thrombus in human internal organ.This patent is made of the trocar sheath that has horn mouth and offer side opening that an inner catheter that has a sacculus and are used to collect broken thrombi.This patent has been considered the collection problem of broken thrombi.But, the horn mouth of this patent is a fixed-size solid structure, the thickness that can not adapt to different patient vessels does not wait, in addition, this solid structure is unfavorable for the sealing of trocar sheath head end and human vas contact site, also have some side openings near adding horn mouth, these reasons all will cause the broken little thrombi of part still might remain in the blood vessel and can not thoroughly be excreted.

The patent No. is that the Chinese utility model patent " the slidingtype combined catheter that is used for the treatment of thrombosis " (Granted publication number for CN201192520Y) of ZL200820098250.3 discloses a kind of slidingtype combined catheter that is used for the treatment of thrombosis.This patent is made of a core pipe and a sleeve pipe, and core pipe and sleeve pipe head end link a sacculus respectively.This patent is intended striking off thrombosis by dragging back and forth of sleeve pipe head end sacculus, and the sacculus of core tube head end then is specifically designed to there being the sedimentary vein segment of thrombosis upper end to carry out shutoff.The advantage of this patent is an element to be set specially be used to stop broken thrombi residual, but because this patent is just carried out shutoff to an end of the sedimentary vein segment of thrombosis, the other end still is in open state, therefore, still can not guarantee all broken thrombi are all excreted.

One of all unresolved key problem of removing the bolt operation of above-mentioned prior art: the thrombi that will break away from from blood vessel wall thoroughly excretes.Based on this present situation, optimal solution is: remove the bolt process and begin before at first to there being the sedimentary local vein segment of thrombosis to carry out the interim shutoff in two ends, remove after the bolt process begins, on the spot it is excreted via special passage immediately in case thrombi breaks away from from blood vessel.In order to realize this solution, except possessing venous thrombosis deposition section is carried out the two ends shutoff and carried out thrombosis and scrape the special-purpose operating theater instruments of taking off, also must possess supporting aspirator, excrete so that will scrape the thrombi of taking off as required at any time.To be unlikely to too big and to cause blood vessel injury or influence to take out the bolt effect in order to make in the broken thrombi process of suction by the negative pressure in the local vein segment of shutoff, the aspirator that is equipped with also should satisfy such demand: the normal saline or the heparin that also should inject equivalent when the broken thrombi of suction in by the local vein segment of shutoff simultaneously in this part vein segment.

Through the literature search of prior art is found, the patent No. is that the Chinese utility model patent " self-destroy safety injector " (Granted publication number be CN1226059C) of ZL03128859.6 discloses a kind of self-destroy safety injector.This patent needle holder has fixing and unclamp automatically and make the dual-use function that contracts in the syringe needle with overcoat, and in a single day core bar be pushed into jacket bottom and get final product auto lock, realizes self-destruction.

The patent No. is that the Chinese utility model patent " cardiovascular seal wire get involved syringe " (Granted publication number be CN201123940Y) of ZL200720028672.9 discloses a kind of cardiovascular seal wire and gets involved syringe.The patent No. is that the Chinese utility model patent " cardiovascular get involved use syringe " (Granted publication number be CN201197836Y) of ZL200820021308.4 discloses a kind of cardiovascular intervention syringe.The patent No. is that the Chinese utility model patent " a kind of injection syringe for cardiovascular intervention " (Granted publication number for CN201399124Y) of ZL200920024882.X discloses a kind of injection syringe for cardiovascular intervention.These 3 patents all adopt the ring section plunger by chamber, the ring section injectable drug between syringe and the axle center pipe, and the axle center pore then is specifically designed to the feeding seal wire, can realize that syringe need not pulled up can send into seal wire after puncture, prevent that blood from spilling.

The patent No. is that the Chinese utility model patent " two-way syringe " (Granted publication number for CN201171836Y) of ZL200820019117.4 discloses a kind of two-way syringe.This patent has two injecting cavities, can gradation incessantly aspirate be discharged in a scope that comparatively seals.

Above-mentioned prior art can not satisfy the primary demand that thrombosis strikes off the surgical suction device, can't wait flow to carry out the extraction of broken thrombi and the injection of normal saline (or heparin) synchronously.

The utility model content

The purpose of this utility model exactly in order to address the above problem, provides a kind of thrombosis that removes to take out pump with advancing precession to annotate.Thereby can make the clinician, especially carry out the clinician of Minimally Invasive Surgery and can be at any time will scrape the broken thrombi of taking off from blood vessel wall directly from there being the sedimentary local vein segment of thrombosis to extract out external, to avoid broken thrombi residual, stop internal organs thromboembolism hidden danger in endovascular part.

In order to achieve the above object, this utility model has adopted following technical scheme: a kind of thrombosis that removes is taken out pump with advancing precession to annotate, and it comprises:

Advance the precession body, comprise torus and the rectangular frame that is connected the torus lower end, the middle and upper part of rectangular frame two side frames is respectively equipped with to projecting inward projection, is provided with the through hole of up/down perforation in this projection;

Slide mass is the U-shaped structural member, and its dual-side is nested in two through holes that advance the precession body respectively and can slides up and down along through hole, and the both sides on its base connect with advancing the precession bulk phase by spring respectively;

Pump barrel is arranged on to advance in the precession body and pass torus and protrudes upward, and this pump barrel is columnar structured, comprises opening and blind end, and cylindrical shell is provided with external screw thread;

The pump barrel seat is connected the opening of pump barrel and opening is sealed;

Piston component comprises that the order push-pull bar, piston body and the notes that fuse take out bar, and the inner chamber that piston body is arranged in the pump barrel pump barrel is separated into ante-chamber and back cavity, and ante-chamber is an injecting cavity, and back cavity is a suction chamber; The upper end of push-pull bar links to each other with the lower end of piston body, and the lower end of push-pull bar is successively passed pump barrel seat, slide mass and propelling precession bulk phase and connected; The lower end that notes are taken out bar links to each other with the upper end of piston body, and it is protruding to annotate the blind end that passes pump barrel in the upper end of taking out bar;

The angular teeth button is arranged in the torus that advances the precession body, and a side of one end and slide mass is movably connected, the other end have with cylindrical shell on the adaptive tooth head of external screw thread also can link to each other with the external screw thread engaged transmission on the cylindrical shell;

Return spring, its upper end links to each other with the torus that advances the precession body, and its lower end links to each other with the bight of angular teeth button;

Described notes are taken out and are provided with not connected first passage and second channel in the bar; The upper end of first passage is in communication with the outside by an injection joint, and the lower end of first passage is communicated with injecting cavity; The upper end of second channel is in communication with the outside by a suction joint to lateral opening, and the lower end of second channel is passed piston body and is communicated with suction chamber.

The diameter of described push-pull bar is identical with the diameter that notes are taken out bar.

Described pump barrel seat lower end is provided with annular hand grip.

Be provided with ring cavity in the torus of described propelling precession body, and be provided with a plurality of inside and outside breach that connect, described angular teeth button is arranged in one of them breach.

The thrombosis that removes of the present utility model is taken out pump owing to adopted above technical scheme with advancing precession to annotate, and makes it compared with prior art, has following advantage and characteristics:

1, adopts this utility model to remove thrombosis and take out pump, can will scrape the thrombi of taking off as required at any time and excrete with advancing precession to annotate;

2, adopt this utility model to remove thrombosis and take out pump with advancing precession to annotate, when having the sedimentary local vein segment of thrombosis to aspirate broken thrombi, also in this part vein segment, inject the normal saline or the heparin of equivalent, thereby can in the sedimentary local vein segment of thrombosis is arranged, form stable input and output balance, guarantee that the negative pressure in the broken thrombi process medium-sized vein section of suction is unlikely to too big and causes blood vessel injury or influence to take out the bolt effect.

3, of the present utility model to remove thrombosis simple with advancing precession to annotate to take out pump configuration, can adopt respectively to advance and two kinds of modes of operation of precession are operated, and can realize precession or propelling as required, conveniently to control the flow of injection or aspirated liquid.

4, this utility model is suitable for that human limb is venothrombotic strikes off operation, especially is fit to adopt percutaneous Minimally Invasive Surgery technology to carry out striking off of human body femoral vein depths thrombosis.

Description of drawings

Fig. 1 removes thrombosis with advancing precession to annotate the perspective view of taking out pump for this utility model;

Fig. 2, Fig. 3 remove thrombosis with advancing precession to annotate the sectional structure sketch map of taking out pump for this utility model, and wherein Fig. 2 is an advanced state, and Fig. 3 is the precession state.

The specific embodiment

Referring to Fig. 1, Fig. 2, Fig. 3, the thrombosis that removes of the present utility model is taken out pump with advancing precession to annotate, and comprises advancing precession body 1,slide mass 2,pump barrel 3,pump barrel seat 4,piston component 5,angular teeth button 6 and returnspring 7.

Advance precession body 1 to comprise torus 11 and therectangular frame 12 that is connected the torus lower end, the middle and upper part of rectangular frame two side frames is respectively equipped with to projectinginward projection 13, is provided with the through hole of up/down perforation in this projection.In the torus 11 that advances precession body 1, be provided with ring cavity, and be provided with a plurality of inside and outside breach 111 that connect.

Slide mass 2 is the U-shaped structural member, and its dual-side 21 is nested in two through holes that advance the precession body respectively and can slides up and down along through hole, and the both sides on itsbase 22 connect with advancing the precession bulk phase byspring 8 respectively.

Pump barrel 3 is arranged on to advance in the precession body and pass torus 11 and protrudes upward, and this pump barrel is columnar structured, comprises opening and blind end, and cylindrical shell is provided with external screw thread.

Pump barrel seat 4 is connected the opening ofpump barrel 3 and opening is sealed.Be provided withannular hand grip 41 in the lower end ofpump barrel seat 4.

Pistoncomponent 5 comprises that the order push-pull bar 51,piston body 52 and the notes that fuse take outbar 53, and the inner chamber thatpiston body 52 is arranged in the pumpbarrel pump barrel 3 is separated into ante-chamber 31 andback cavity 32, and ante-chamber is an injecting cavity, and back cavity is a suction chamber; The upper end of push-pull bar 51 links to each other with the lower end ofpiston body 52, and the lower end of push-pull bar 51 is successively passedpump barrel seat 4,slide mass 2 and advanced precession body 1 to link to each other; The lower end that notes are taken outbar 53 links to each other with the upper end ofpiston body 52, and it is protruding to annotate the blind end that passespump barrel 3 in the upper end of taking out bar 53.In taking outbar 53, notes are provided with not connectedfirst passage 531 andsecond channel 532; The upper end offirst passage 531 is in communication with the outside by aninjection joint 533, and the lower end offirst passage 531 is communicated with injectingcavity 31; The upper end ofsecond channel 532 is in communication with the outside by asuction joint 534 to lateral opening, and the lower end ofsecond channel 532 is passed piston body and is communicated with suction chamber 32.The diameter of above-mentioned push-pull bar 51 is identical with the diameter that notes are taken outbar 53.

Angular teeth button 6 is arranged in the breach of torus 11, and a side 21 of one end andslide mass 2 is movably connected, the other end have withcylindrical shell 3 on the adaptive tooth head of external screw thread and can link to each other with the external screw thread engaged transmission on the cylindrical shell.

The upper end ofreturn spring 7 links to each other with the torus that advances the precession body, and the lower end links to each other with the bight ofangular teeth button 6.

The thrombosis that removes of the present utility model is taken out the use of pump cooperation insertion type thrombosis removing device with advancing precession to annotate, its operation principle is, at first normal saline or heparin are drawn in the injectingcavity 31 ofpump barrel 3 byfirst passage 531, to injectjoint 533 then is connected with the corresponding joint of insertion type thrombosis removing device respectively withsuction joint 534, promote or rotation advances precession body 1, normal saline or heparin are expelled to the appointment partial section of human vein by the injectingcavity 31 of pump barrel 3.Simultaneously, the corresponding human vena systemica specifies the mixture of the normal saline (or heparin) in the partial section, broken thrombi and a small amount of venous blood then to be drawn in thesuction chamber 32 of pump barrel 1 via second channel 532.Because the diameter of push-pull bar 51 is identical with the diameter that notes are taken outbar 53, promoting or rotation advances in the process of precession body 1 and can guarantee thatpump barrel 3 injectingcavities 31 volumetrical reductions equate withsuction chamber 32 volumetrical recruitments, realize normal saline (or heparin) to intravenous injection and normal saline (or heparin), broken thrombi and on a small quantity the mixture of venous blood carry out from flows such as the venous extraction are synchronous.

The thrombosis that removes of the present utility model is taken out pump under naturalness with advancing precession to annotate,slide mass 2 is in upper under the pulling force effect of twosprings 8,angular teeth button 6 is in open configuration under the pulling force effect ofreturn spring 7, promptly not withpump barrel 3 on external screw thread engagement, as shown in Figure 2.At this moment, one holdspump barrel seat 4, one hand propelled (or pulling) advances precession body 1, can realize plug-type operation.If will carry out screw type when operation, a upper end that holdspump barrel 3 then, another hands to advancing precession body 1 to draw over to one's side, makesslide mass 2 it move down and forces external screw thread engagement onangular teeth button 6 and thepump barrel 3, as shown in Figure 3.Rotation advances precession body 1 andslide mass 2, can realize the screw type operation.

Claims (4)

1. one kind is removed thrombosis with advancing the precession notes to take out pump, it is characterized in that comprising:

Advance the precession body, comprise torus and the rectangular frame that is connected the torus lower end, the middle and upper part of rectangular frame two side frames is respectively equipped with to projecting inward projection, is provided with the through hole of up/down perforation in this projection;

Slide mass is the U-shaped structural member, and its dual-side is nested in two through holes that advance the precession body respectively and can slides up and down along through hole, and the both sides on its base connect with advancing the precession bulk phase by spring respectively;

Pump barrel is arranged on to advance in the precession body and pass torus and protrudes upward, and this pump barrel is columnar structured, comprises opening and blind end, and cylindrical shell is provided with external screw thread;

The pump barrel seat is connected the opening of pump barrel and opening is sealed;

Piston component comprises that the order push-pull bar, piston body and the notes that fuse take out bar, and the inner chamber that piston body is arranged in the pump barrel pump barrel is separated into ante-chamber and back cavity, and ante-chamber is an injecting cavity, and back cavity is a suction chamber; The upper end of push-pull bar links to each other with the lower end of piston body, and the lower end of push-pull bar is successively passed pump barrel seat, slide mass and propelling precession bulk phase and connected; The lower end that notes are taken out bar links to each other with the upper end of piston body, and it is protruding to annotate the blind end that passes pump barrel in the upper end of taking out bar;

The angular teeth button is arranged in the torus that advances the precession body, and a side of one end and slide mass is movably connected, the other end have with cylindrical shell on the adaptive tooth head of external screw thread also can link to each other with the external screw thread engaged transmission on the cylindrical shell;

Return spring, its upper end links to each other with the torus that advances the precession body, and its lower end links to each other with the bight of angular teeth button;

Described notes are taken out and are provided with not connected first passage and second channel in the bar; The upper end of first passage is in communication with the outside by an injection joint, and the lower end of first passage is communicated with injecting cavity; The upper end of second channel is in communication with the outside by a suction joint to lateral opening, and the lower end of second channel is passed piston body and is communicated with suction chamber.

2. the thrombosis that removes as claimed in claim 1 is taken out pump with advancing precession to annotate, and it is characterized in that: the diameter of described push-pull bar is identical with the diameter that notes are taken out bar.

3. the thrombosis that removes as claimed in claim 1 is taken out pump with advancing precession to annotate, and it is characterized in that: described pump barrel seat lower end is provided with annular hand grip.

4. the thrombosis that removes as claimed in claim 1 is taken out pump with advancing precession to annotate, and it is characterized in that: be provided with ring cavity in the torus of described propelling precession body, and be provided with a plurality of inside and outside breach that connect, described angular teeth button is arranged in one of them breach.

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