CN102335464B - Injection and suction pump for removing thrombus - Google Patents
Injection and suction pump for removing thrombus Download PDFInfo
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- CN102335464B CN102335464B CN201010238477.5A CN201010238477A CN102335464B CN 102335464 B CN102335464 B CN 102335464B CN 201010238477 A CN201010238477 A CN 201010238477A CN 102335464 B CN102335464 B CN 102335464B
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- suction
- injection
- pump
- thrombus
- pump barrel
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Abstract
The invention provides an injection and suction pump for removing thrombus. The injection and suction pump comprises a pump drum, a pump drum seat and an injection and suction piston, wherein the injection and suction piston comprises a pushing and pulling rod, a piston body and an injection and suction rod all of which are sequentially connected; the piston body is arranged in the pump drum and divides the inner cavity of the pump drum into a front cavity and a rear cavity; the front cavity of the pump drum is an injection cavity and the rear cavity is a suction cavity; the injection and suction rod is internally provided with a first channel and a second channel both of which are not communicated; the first channel is communicated with the injection cavity; and the second channel is communicated with the suction cavity. The injection and suction pump for removing thrombus has the characteristics that: by using the injection and suction pump for removing thrombus together with an interventional thrombus scraping device, the thrombus block scraped from the local vein segment with thrombus deposition can be discharged at any time according to the requirement; and equivalent physiological saline or heparin is injected while sucking broken thrombus blocks, thereby forming stable input-output balance in the local vein segment with thrombus deposition, and preventing the injury of blood vessels or the influence on the thrombus suction effect caused by overhigh negative pressure in the vein segment during the broken thrombus block suction.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, relate in particular to a kind of and get involved the removing thrombus being used in conjunction with except bolt operating theater instruments and take out pump with note.
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 deposition, can cause Patients with Lung thromboembolism dead.Adopt Wicresoft's intervene operation therapy, small otch of percutaneous puncture inserts vein by special except bolt operating theater instruments, directly carries out contact thrombolysis 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 subject to the advantages such as phlebothrombosis deposition site effect of depth is little.
Through the literature search of prior art is found, the Chinese utility model patent < < vein Fogarty > > that the patent No. is ZL200320121061.0 (Granted publication number is CN2659350Y) discloses a kind of vein Fogarty.This patent by stilet, get bolt pipe and sacculus 3 parts form, advantage is not damaged vein valve for taking out extremity deep venous thrombosis.The patent No. is that the Chinese utility model patent < < Catheter for removing thrombus from blood vessel > > (Granted publication number is 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, for supplying liquid or gas makes inflation; Another chamber is for blood jet flow.Whether the advantage of this patent is for arriving thrombosis position by automatic discrimination conduit head end.The patent No. is that the Chinese utility model patent < < of ZL200620164685.4 gets bolt device > > (Granted publication number for CN201042451Y) and discloses a kind of bolt device of getting.This patent adopts the umbrella-shaped structure consisting of memory alloy wire to carry out thrombosis and strikes off, and adopts sleeve pipe that the thrombosis after striking off is excreted.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 adopt and to the thrombosis application of force, it is departed from from blood vessel except bolt element, whole except having the vein segment of thrombosis deposition in bolt process completely in open state, this makes the broken [Dan piece having departed from from blood vessel likely along both direction, partly enter blood of human body and transfer to other positions or internal organs, can not thoroughly be excreted, cause potential internal organs thromboembolism dangerous.
Application number is the conduit that the conduit > > (publication number is CN1072867A) of the Chinese invention patent < < fetching intravascular thrombus in human internal organ of 92106702.X discloses a kind of fetching intravascular thrombus in human internal organ.This patent by an inner catheter with sacculus and one for collecting forming with horn mouth the trocar sheath that offers side opening of 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 is not etc., in addition, this solid structure is unfavorable for the sealing of trocar sheath head end and human vas contact site, near adding horn mouth, also have some side openings, these reasons all will cause the broken little thrombi of part still likely to remain in blood vessel and can not thoroughly be excreted.
The patent No. is that the slidingtype combined catheter > > (Granted publication number is CN201192520Y) that the Chinese utility model patent < < of ZL200820098250.3 is used for the treatment of thrombosis discloses a kind of slidingtype combined catheter that is used for the treatment of thrombosis.This patent consists of a core pipe and a sleeve pipe, and core pipe and sleeve pipe head end link respectively a sacculus.This patent intend by sleeve pipe head end sacculus drag back and forth to scrape removing thrombus, the sacculus of core tube head end is specifically designed to there being the vein segment upper end of thrombosis deposition to carry out shutoff.The advantage of this patent is an element to be set specially for stoping broken thrombi residual, but because this patent is just carried out shutoff to one end of the vein segment of thrombosis deposition, the other end is still in open state, therefore, still can not guarantee all broken thrombi all to excrete.
Above-mentioned prior art is one of unresolved key problem except bolt operation all: the thrombi having departed from from blood vessel wall is thoroughly excreted.Based on this present situation, optimal solution is: except bolt process starts before first to there being the local vein segment of thrombosis deposition to carry out two ends temporary plugging, except after bolt process starts, once thrombi departs from and on the spot it excreted via special passage immediately from blood vessel.In order to realize this solution, except possessing, the thrombosis deposition section of vein is carried out two ends shutoff and carried out thrombosis and scrape de-Special surgical instrument, also must possess supporting aspirator, to excrete scraping de-thrombi at any time as required.In order to make to be unlikely to too large and to cause blood vessel injury or impact to take out bolt effect by the negative pressure in the local vein segment of shutoff in suction-breaking thrombi process, the aspirator being equipped with also should meet such demand: from also should be simultaneously during suction-breaking thrombi in by the local vein segment of shutoff to the normal saline or the heparin that inject equivalent in this part vein segment.
Through the literature search of prior art is found, the Chinese invention patent < < self-destroy safety injector > > that the patent No. is ZL03128859.6 (Granted publication number is CN1226059C) discloses a kind of self-destroy safety injector.This patent needle holder has to fix with overcoat and automatically unclamp makes syringe needle inside contract dual-use function, once and core bar be pushed into jacket bottom and get final product auto lock, realize self-destruction.
The patent No. is that the Chinese utility model patent < < cardiovascular guidewire intervented injection syringe > > (Granted publication number is CN201123940Y) of ZL200720028672.9 discloses a kind of cardiovascular guidewire intervented injection syringe.The patent No. is that the Chinese utility model patent < < injection syringe for cardiovascular intervention > > (Granted publication number is CN201197836Y) of ZL200820021308.4 discloses a kind of injection syringe for cardiovascular intervention.The patent No. is that Chinese utility model patent < < injection syringe for cardiovascular intervention > > (Granted publication number is CN201399124Y) of ZL200920024882.X discloses a kind of injection syringe for cardiovascular intervention.These 3 patents all adopt ring section plunger by chamber, the ring section injectable drug between syringe and axle center pipe, and axle center pore is specifically designed to and passes into seal wire, and can realize syringe does not need to pull up to send into seal wire after puncture, and anti-Hemostatic Oral Liquid spills.
The patent No. is that the Chinese utility model patent < < Bidirectional injector > > (Granted publication number is CN201171836Y) of ZL200820019117.4 discloses a kind of Bidirectional injector.This patent has two injecting cavities, can in a scope comparatively sealing, gradation incessantly aspirate be discharged.
Above-mentioned prior art can not meet the primary demand of aspirator for thrombosis scraping operation, cannot synchronously wait flow to carry out the extraction of broken thrombi and the injection of normal saline (or heparin).
Summary of the invention
Object of the present invention, exactly in order to address the above problem, provides a kind of removing thrombus to take out pump with note.Thereby can make clinician, especially the clinician who carries out Minimally Invasive Surgery can will scrape de-broken thrombi directly from there being the local vein segment of thrombosis deposition to extract out external at any time from blood vessel wall, to avoid broken thrombi residual in endovascular part, stop internal organs thromboembolism hidden danger.
In order to achieve the above object, the present invention has adopted following technical scheme: a kind of removing thrombus is taken out pump with note, and it comprises:
Pump barrel, is columnar structured, comprises opening and blind end, is provided with through hole in the middle of blind end;
Pump barrel seat, is connected to the opening of pump barrel and by opening sealing, is provided with through hole in the middle of pump barrel seat;
Note is taken out piston, comprises push-pull bar, piston body and note pumping rod that order is connected, and piston body is arranged in pump barrel the inner chamber of pump barrel is separated into ante-chamber and back cavity, and ante-chamber is injecting cavity, and back cavity is suction chamber; The through hole that push-pull bar is crossed in the middle of pump barrel seat is connected with the tail end of piston body; The through hole that note pumping rod is crossed in the middle of pump barrel blind end is connected with the head end of piston body;
In described note pumping rod, be provided with not connected first passage and second channel; The head end of first passage is in communication with the outside by an injection joint, and the tail end of first passage is communicated with injecting cavity; The head end of second channel is in communication with the outside by a suction joint to lateral opening, and the tail end of second channel is communicated with suction chamber through piston body;
The diameter of described push-pull bar is identical with the diameter of note pumping rod.
On described pump barrel seat, be outward extended with two be that 180 degree distribute radially stretch foot and an elongated rod shape is stretched foot, what elongated rod shape was stretched foot stretches out direction perpendicular to two directions of stretching out of radially stretching foot; Described push-pull bar tail end is provided with T-handle, this T-handle stretch out direction and on pump barrel seat two radially stretch foot to stretch out direction consistent.
On described piston body, be embedded with piston ring, the inwall of this piston ring and pump barrel fits tightly; In through hole in the middle of described pump barrel blind end, be embedded with upper sealing ring, this upper sealing ring fits tightly with the outer wall of note pumping rod; In through hole in the middle of described pump barrel seat, be embedded with lower sealing ring, the outer wall of this lower sealing ring and push-pull bar fits tightly.
Removing thrombus of the present invention is taken out pump owing to having adopted above technical scheme with note, makes it compared with prior art, has following advantage and disadvantage:
1, adopt removing thrombus of the present invention to take out pump with note, can by scraping de-thrombi, excrete at any time as required;
2, adopt removing thrombus of the present invention to take out pump with note, from when having the local vein segment suction-breaking thrombi of thrombosis deposition, also to the normal saline or the heparin that inject equivalent in this part vein segment, thereby can in the local vein segment that has thrombosis deposition, form stable input and output balance, guarantee that the negative pressure in suction-breaking thrombi process medium-sized vein section is unlikely to too large and causes blood vessel injury or impact to take out bolt effect.
3, to take out pump configuration simple, easy to operate with note for removing thrombus of the present invention, adopts conventional industrial manufacturing process and conventional medical macromolecular materials to manufacture.
4, the present invention is suitable for the venothrombotic scraping operation of human limb, is especially applicable to adopting minimal invasion surgical technic to carry out striking off of human body femoral vein depths thrombosis.
Accompanying drawing explanation
Fig. 1 is the perspective view that removing thrombus of the present invention is taken out pump with note;
Fig. 2 is that removing thrombus of the present invention is taken out the sectional structure schematic diagram of pump with note;
Fig. 3 is the perspective view that the note in the present invention is taken out piston.
The specific embodiment
Referring to Fig. 1, coordinate referring to Fig. 2, Fig. 3, removing thrombus of the present invention is taken out pump with noting, and comprises that pump barrel 1, pump barrel seat 2 and note take out piston 3.
Pump barrel 1 is columnar structured, comprises opening and blind end, is provided with through hole in the middle of blind end.
Note is taken out push-pull bar 31, piston body 32 and the note pumping rod 33 that piston 3 comprises that order is connected, and piston body 32 is arranged in pump barrel the inner chamber of pump barrel 1 is separated into ante-chamber 11 and back cavity 12, and ante-chamber 11 is injecting cavity, and back cavity 12 is suction chamber.The through hole that push-pull bar 31 is crossed in the middle of pump barrel seat 2 is connected with the tail end of piston body 32; The through hole that note pumping rod 33 is crossed in the middle of pump barrel 1 blind end is connected with the head end of piston body 32.In note pumping rod 33, be provided with not connected first passage 331 and second channel 332; The head end of first passage 331 is in communication with the outside by an injection joint 333, and the tail end of first passage 331 is communicated with injecting cavity 11; The head end of second channel 332 is in communication with the outside by a suction joint 334 to lateral opening, and the tail end of second channel 332 is communicated with suction chamber 12 through piston body 32.At push-pull bar 31 tail ends, be provided with T-handle 311, this T-handle 311 stretch out direction and on pump barrel seat two radially stretch foot 21 to stretch out direction consistent.
The diameter of above-mentioned push-pull bar 31 is identical with the diameter of note pumping rod 33.
On piston body 32, be embedded with piston ring 41, the inwall of this piston ring and pump barrel 1 fits tightly; In through hole in the middle of pump barrel 1 blind end, be embedded with upper sealing ring 42, this upper sealing ring 42 fits tightly with the outer wall of note pumping rod 33; In through hole in the middle of pump barrel seat 2, be embedded with lower sealing ring 43, this lower sealing ring 43 fits tightly with the outer wall of push-pull bar 31.
Removing thrombus of the present invention is taken out pump with note and is coordinated insertion type thrombosis removing device to use, its operation principle is, first by first passage 331, normal saline or heparin are drawn in the injecting cavity 11 of pump barrel 1, then injection joint 333 is connected with the corresponding joint of insertion type thrombosis removing device respectively with suction joint 334, promote push-pull bar 31, normal saline or heparin are expelled to the appointment partial section of human vein by the injecting cavity 11 of pump barrel 1.Meanwhile, corresponding human vena systemica specifies the mixture of the normal saline (or heparin) in partial section, broken thrombi and a small amount of venous blood via second channel 332, to be drawn in the suction chamber 12 of pump barrel 1.Because the diameter of push-pull bar 31 is identical with the diameter of note pumping rod 33, in promoting the process of push-pull bar 31, can guarantee that the reduction of pump barrel 1 injecting cavity 11 volumes equates with the recruitment of suction chamber 12 volumes, 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 from flows such as the extraction of vein are synchronous, carry out.
Claims (2)
1. removing thrombus is taken out a pump with note, it is characterized in that comprising:
Pump barrel, is columnar structured, comprises opening and blind end, is provided with through hole in the middle of blind end;
Pump barrel seat, is connected to the opening of pump barrel and by opening sealing, is provided with through hole in the middle of pump barrel seat;
Note is taken out piston, comprises push-pull bar, piston body and note pumping rod that order is connected, and piston body is arranged in pump barrel the inner chamber of pump barrel is separated into ante-chamber and back cavity, and ante-chamber is injecting cavity, and back cavity is suction chamber; The through hole that push-pull bar is crossed in the middle of pump barrel seat is connected with the tail end of piston body; The through hole that note pumping rod is crossed in the middle of pump barrel blind end is connected with the head end of piston body;
In described note pumping rod, be provided with not connected first passage and second channel; The head end of first passage is in communication with the outside by an injection joint, and the tail end of first passage is communicated with injecting cavity; The head end of second channel is in communication with the outside by a suction joint to lateral opening, and the tail end of second channel is communicated with suction chamber through piston body;
The diameter of described push-pull bar is identical with the diameter of note pumping rod.
2. removing thrombus as claimed in claim 1 is taken out pump with note, it is characterized in that: on described piston body, be embedded with piston ring, the inwall of this piston ring and pump barrel fits tightly; In through hole in the middle of described pump barrel blind end, be embedded with upper sealing ring, this upper sealing ring fits tightly with the outer wall of note pumping rod; In through hole in the middle of described pump barrel seat, be embedded with lower sealing ring, the outer wall of this lower sealing ring and push-pull bar fits tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010238477.5A CN102335464B (en) | 2010-07-27 | 2010-07-27 | Injection and suction pump for removing thrombus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010238477.5A CN102335464B (en) | 2010-07-27 | 2010-07-27 | Injection and suction pump for removing thrombus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102335464A CN102335464A (en) | 2012-02-01 |
| CN102335464B true CN102335464B (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010238477.5A Expired - Fee Related CN102335464B (en) | 2010-07-27 | 2010-07-27 | Injection and suction pump for removing thrombus |
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| Country | Link |
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| CN (1) | CN102335464B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10716915B2 (en) * | 2015-11-23 | 2020-07-21 | Mivi Neuroscience, Inc. | Catheter systems for applying effective suction in remote vessels and thrombectomy procedures facilitated by catheter systems |
| CN109350775A (en) * | 2018-11-09 | 2019-02-19 | 盛昱声 | A kind of temple negative-pressure vacuum dredging device |
| CN113243969B (en) * | 2021-03-12 | 2022-09-23 | 苏州恒瑞宏远医疗科技有限公司 | Thrombus removing system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128497A (en) * | 1994-05-17 | 1996-08-07 | 株式会社大塚制药工场 | Method of inhibiting blood coagulation during extracorporeal blood circulation and device for releasing antithrombotic drug used therein |
| US6558366B1 (en) * | 1990-08-06 | 2003-05-06 | Possis Medical, Inc. | Thrombectomy method |
| CN1583187A (en) * | 2004-06-08 | 2005-02-23 | 吴金广 | Pressure balanced injection therapeutical device |
| CN201481928U (en) * | 2009-08-27 | 2010-05-26 | 吴桂华 | CT-use flow-adjustable injection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001049341A2 (en) * | 1999-12-31 | 2001-07-12 | Bacchus Vascular Inc. | Method and system for re-infusing filtered bodily aspirates |
-
2010
- 2010-07-27 CN CN201010238477.5A patent/CN102335464B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6558366B1 (en) * | 1990-08-06 | 2003-05-06 | Possis Medical, Inc. | Thrombectomy method |
| CN1128497A (en) * | 1994-05-17 | 1996-08-07 | 株式会社大塚制药工场 | Method of inhibiting blood coagulation during extracorporeal blood circulation and device for releasing antithrombotic drug used therein |
| CN1583187A (en) * | 2004-06-08 | 2005-02-23 | 吴金广 | Pressure balanced injection therapeutical device |
| CN201481928U (en) * | 2009-08-27 | 2010-05-26 | 吴桂华 | CT-use flow-adjustable injection device |
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| Publication number | Publication date |
|---|---|
| CN102335464A (en) | 2012-02-01 |
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Granted publication date: 20140402 Termination date: 20160727 |
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| CF01 | Termination of patent right due to non-payment of annual fee |