CN103110446A - Clot-retrieval plugging device - Google Patents
Clot-retrieval plugging device Download PDFInfo
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- CN103110446A CN103110446A CN2013100797283A CN201310079728A CN103110446A CN 103110446 A CN103110446 A CN 103110446A CN 2013100797283 A CN2013100797283 A CN 2013100797283A CN 201310079728 A CN201310079728 A CN 201310079728A CN 103110446 A CN103110446 A CN 103110446A
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Abstract
The invention relates to the technical field of medical apparatus and instruments, in particular to a clot-retrieval plugging device. The clot-retrieval plugging device comprises a spiral coil and a transmitting guide wire, wherein the rear end of the spiral coil is fixedly connected with the transmitting guide wire. The clot-retrieval plugging device is characterized in that the spiral coil is composed of a spring and a memory alloy wire, the spiral coil clockwise vertically reels from the left side surface in space at least one circle and then reels to the front side surface, reels anticlockwise vertically on the front side surface at least one circle and then reels to the upper flat surface, reels clockwise horizontally on the upper flat surface at least one circle and then reels to the right side surface, reels anticlockwise vertically on the right side surface at least one circle and then reels to the back side surface, reels clockwise vertically on the back side surface at least one circle and then reels to the lower flat surface, and reels clockwise horizontally on the lower flat surface at least one circle and then is connected with a guide wire in a micro-pipe. The clot-retrieval plugging device has the advantages of being novel in structure, easy in operation, safe, reliable, fast and completed in clot-retrieval, good in plugging effect, wide in using range and the like.
Description
Technical field
The present invention relates to technical field of medical instruments, specifically a kind of bolt stopper of getting.
Background technology
Apoplexy is commonly called as cerebrovascular accident, apoplexy, is a kind of cerebral blood circulation obstacle disease of unexpected onset, is also the most serious complication of cerebrovascular disease.It comprises cerebral thrombosis, cerebral hemorrhage etc., has " four height " characteristics that sickness rate is high, disability rate is high, mortality rate is high and relapse rate is high.Arteriosclerosis is its Etiological, and cerebral hemorrhage and cerebral thrombosis are final result.Cause that the modal vascular lesion of apoplexy is cerebral atherosclerosis and dural arteriovenous fistula, wherein:
Described cerebral atherosclerosis is the Important cause of disease of apoplexy.Mainly occur in the large medium-sized artery of supply brain, tube wall is thickened, tube chamber narrows down, intimal thickening, Mottling formation, under Hemodynamic Effects speckle can break, ulcer, hemorrhage, thrombosis, cause arterial occlusion and blood supply district cerebral infarction thereof.at present, for the inaccessible polyphyly plaque rupture of cerebrovascular malformation cause thrombosis or speckle content come off cause, due to illness the feelings progress is fast, patient's poor prognosis, the discharging of entocranial artery acute occlusion for free window or treatment window mainly contains intravenous injection thrombolytic drug thrombolytic, the tremulous pulse thrombolytic, machinery broken bolt or get four kinds, bolt, due to front two kinds of larger thrombosis of Drug therapy mode or speckle content, intracranial vessel thromboembolism thrombolytic effect is poor, Chang Buneng in time opens occluding vascular, at present, the comparatively desirable bolt mode of getting is that machinery is got bolt, and the existing bolt mode of getting, be not easy to take out of less speckle external, cause getting bolt not thorough, as shown in Figure 1.
through retrieval, CN201939433U discloses a kind of utility model patent of Intracranial thrombus catcher, it comprises filter screen, described filter screen is olivary network structure, described olivary network structure is formed by the memory alloy wire braiding of many S shapes, the two ends of the memory alloy wire of described S shape are fixedly connected with anchor portion respectively, the opening direction of the serpentine of the memory alloy wire of two adjacent S shapes of the memory alloy wire of described many S shapes is opposite, the structure that has formed in twos the figure of eight, its advantage is: arrest primary thrombus in entocranial artery and the speckle content that comes off of interception proximal part vascular lesion by the characteristic of filter screen and memory alloy wire itself, its deficiency is to make complexity, and be unfavorable for getting larger thrombosis, can only be used for arresting the less speckle of blood, the scope of application is limited.
Described dural arteriovenous fistula (duralarteriovenousfistulas, DAVFs) is the abnormal traffic between the sinus durac matris such as cavernous sinus, lateral sinus, sagittal sinus and near arteriovenous thereof, is the outer feeding artery of intracranial and dlural sinus communication, is more common in the adult.Dural arteriovenous fistula is to occur in dural arteriovenous shunt, and its feeding artery is internal carotid artery, external carotid artery or vertebrarterial meningeal branch, and blood shunt enters venous sinus.Because flowing directly into venous sinus, arterial blood cause venous sinus inner blood arterial revascularization and venous sinus internal pressure to increase, thereby make even adverse current of cerebral veins, venae cerebri backflow obstacle, the pathological changes such as cerebral edema, intracranial hypertension, dysbolism of brain, angiorrhexis be hemorrhage occur.At present, usually adopt the arterial embolization interventional therapy for the Therapeutic Method of this dural arteriovenous fistula, along with the development of intervention radiation endovascular treatment, Treatment of Endovascular Embolization DAVFs becomes main treatment means gradually.Concrete grammar is: adopt Seldinger technology femoral artery puncture intubate, the row aortocranial angiography is understood the feeding artery of fistula, the big or small position of fistula, quantity and the direction of draining vein, then microtubular is put into feeding artery and thromboembolism it.This embolism materials utilizes turn to carry out thromboembolism usually, and its deficiency is: due to the characteristic of turn itself, make turn can not form fixing shape, cause effect of embolization undesirable.
Summary of the invention
The objective of the invention is to solve above-mentioned the deficiencies in the prior art, provide a kind of novel structure, simple to operate, safe and reliable, get bolt quick, thoroughly, plugging effect is good, the scope of application is wide gets the bolt stopper.
The technical solution adopted for the present invention to solve the technical problems is:
a kind of bolt stopper of getting, comprise delivery guidewire, the delivery guidewire front portion is arranged with the labelling guide ring, it is characterized in that the delivery guidewire front end is provided with spiral coil, spiral coil is comprised of a spring and a memory alloy wire, memory alloy wire adopts Ultimum Ti silk material, memory alloy wire is through in spring, memory alloy wire one end is fixedly connected with spring one end, the other end is fixedly connected with delivery guidewire, described spiral coil after at least one circle of the clockwise vertical surrounding of space left surface around to leading flank, after at least one circle of the counterclockwise vertical surrounding of leading flank around plane upwards, after at least one circle of the clockwise horizontal circle in upper plane around side to the right, after the counterclockwise vertical surrounding of right flank one circle around to trailing flank, after at least one circle of the clockwise vertical surrounding of trailing flank around to lower plane, be connected with seal wire in microtubular after at least one circle of the clockwise horizontal circle of lower plane, make spiral coil under the shape memory of memory alloy wire, form the sextuple shape in space in blood vessel.
The present invention is owing to adopting said structure, have novel structure, simple to operate, safe and reliable, get bolt quick, thoroughly, the advantage such as plugging effect is good, the scope of application is wide.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of the embodiment of the present invention.
Reference numeral: delivery guidewire 1, labelling guide ring 2, memory alloy wire 3, spiral coil 4, thrombosis 5 blood vessels 6, sacculus 7, delivery conduit 8, spring 9.
The specific embodiment:
The present invention is further described below in conjunction with accompanying drawing:
as shown in drawings, a kind of bolt stopper of getting, comprise delivery guidewire 1, delivery guidewire 1 front portion is arranged with labelling guide ring 2, it is characterized in that delivery guidewire 1 front end is provided with spiral coil 4, spiral coil 4 is comprised of a spring 9 and a memory alloy wire 3, memory alloy wire 3 adopts Ultimum Ti silk material, memory alloy wire 3 is through in spring 9, memory alloy wire 3 one ends are fixedly connected with spring 9 one ends, the other end is fixedly connected with delivery guidewire 1, described spiral coil 4 after at least one circle of the clockwise vertical surrounding of space left surface around to leading flank, after at least one circle of the counterclockwise vertical surrounding of leading flank around plane upwards, after at least one circle of the clockwise horizontal circle in upper plane around side to the right, after the counterclockwise vertical surrounding of right flank one circle around to trailing flank, after at least one circle of the clockwise vertical surrounding of trailing flank around to lower plane, be connected with seal wire in microtubular after at least one circle of the clockwise horizontal circle of lower plane, make spiral coil 4 under the shape memory of memory alloy wire, sextuple shape in the interior formation of blood vessel 6 space.
Embodiment 1: when interventional therapy is got thrombosis, getting the bolt stopper is transported to thrombosis 5 far-ends via delivery conduit 8 intravascular 6 and is released into sextuple spiral coil 4 shapes, stoping blood flow according under shadow, sacculus 7 being filled, the delivery guidewire 1 of pulling back is utilized sextuple shape spiral coil to have certain support force thrombosis 5 is pulled in delivery conduit 8, gets bolt and finishes, if the change in diameter of blood vessel is larger, can discharge two different-diameters and get the bolt stopper, thrombosis is caught and taken out, reach the effect that recovers normal blood flow.
Embodiment 2: during interventional therapy shutoff dural arteriovenous fistula, getting the bolt stopper is transported to by delivery conduit 8 intravascular and is released into sextuple spiral coil 4 shapes in arteriovenous fistula fistula mouth, utilizing sextuple shape spiral coil 4 to have certain support force can continue to fill spiral coil 4 to shutoff and complete in spiral coil 4, blood flow is not being arranged between arteriovenous, shutoff finishes.
The present invention is owing to adopting said structure, have novel structure, simple to operate, safe and reliable, get bolt quick, thoroughly, the advantage such as plugging effect is good, the scope of application is wide.
Claims (1)
1. get the bolt stopper for one kind, comprise delivery guidewire, the delivery guidewire front portion is arranged with the labelling guide ring, it is characterized in that the delivery guidewire front end is provided with spiral coil, spiral coil is comprised of a spring and a memory alloy wire, memory alloy wire adopts Ultimum Ti silk material, memory alloy wire is through in spring, memory alloy wire one end is fixedly connected with spring one end, the other end is fixedly connected with delivery guidewire, described spiral coil after at least one circle of the clockwise vertical surrounding of space left surface around to leading flank, after at least one circle of the counterclockwise vertical surrounding of leading flank around plane upwards, after at least one circle of the clockwise horizontal circle in upper plane around side to the right, after the counterclockwise vertical surrounding of right flank one circle around to trailing flank, after at least one circle of the clockwise vertical surrounding of trailing flank around to lower plane, be connected with seal wire in microtubular after at least one circle of the clockwise horizontal circle of lower plane, make spiral coil under the shape memory of memory alloy wire, form the sextuple shape in space in blood vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100797283A CN103110446A (en) | 2013-03-13 | 2013-03-13 | Clot-retrieval plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100797283A CN103110446A (en) | 2013-03-13 | 2013-03-13 | Clot-retrieval plugging device |
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| Publication Number | Publication Date |
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| CN103110446A true CN103110446A (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100797283A Pending CN103110446A (en) | 2013-03-13 | 2013-03-13 | Clot-retrieval plugging device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105636528A (en) * | 2013-10-17 | 2016-06-01 | 柯惠有限合伙公司 | Mechanical thrombectomy with proximal occlusion |
| EP3378415A4 (en) * | 2015-11-19 | 2019-10-09 | Kaneka Corporation | In vivo indwelling member, and in vivo indwelling member placement device provided with said in vivo indwelling member |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020019647A1 (en) * | 1997-08-29 | 2002-02-14 | Wallace Michael P. | Stable coil designs |
| US6551340B1 (en) * | 1998-10-09 | 2003-04-22 | Board Of Regents The University Of Texas System | Vasoocclusion coil device having a core therein |
| US20080319532A1 (en) * | 2004-09-22 | 2008-12-25 | Ev3, Inc. | Medical Implant |
| CN102036611A (en) * | 2007-12-26 | 2011-04-27 | 拉撒路效应公司 | Retrieval systems and methods for use thereof |
| CN203089281U (en) * | 2013-03-13 | 2013-07-31 | 威海维心医疗设备有限公司 | Thrombus-taking plugging device |
-
2013
- 2013-03-13 CN CN2013100797283A patent/CN103110446A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020019647A1 (en) * | 1997-08-29 | 2002-02-14 | Wallace Michael P. | Stable coil designs |
| US6551340B1 (en) * | 1998-10-09 | 2003-04-22 | Board Of Regents The University Of Texas System | Vasoocclusion coil device having a core therein |
| US20080319532A1 (en) * | 2004-09-22 | 2008-12-25 | Ev3, Inc. | Medical Implant |
| CN102036611A (en) * | 2007-12-26 | 2011-04-27 | 拉撒路效应公司 | Retrieval systems and methods for use thereof |
| CN203089281U (en) * | 2013-03-13 | 2013-07-31 | 威海维心医疗设备有限公司 | Thrombus-taking plugging device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105636528A (en) * | 2013-10-17 | 2016-06-01 | 柯惠有限合伙公司 | Mechanical thrombectomy with proximal occlusion |
| US10383644B2 (en) | 2013-10-17 | 2019-08-20 | Covidien Lp | Mechanical thrombectomy with proximal occlusion |
| EP3378415A4 (en) * | 2015-11-19 | 2019-10-09 | Kaneka Corporation | In vivo indwelling member, and in vivo indwelling member placement device provided with said in vivo indwelling member |
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Application publication date: 20130522 |