CN102319097A - Thrombus aspiration catheter and using method thereof - Google Patents
Thrombus aspiration catheter and using method thereof Download PDFInfo
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- CN102319097A CN102319097A CN201110222609A CN201110222609A CN102319097A CN 102319097 A CN102319097 A CN 102319097A CN 201110222609 A CN201110222609 A CN 201110222609A CN 201110222609 A CN201110222609 A CN 201110222609A CN 102319097 A CN102319097 A CN 102319097A
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Abstract
The invention discloses a thrombus aspiration catheter. The catheter comprises an aspiration tube, wherein the aspiration tube comprises a tube socket which is connected with a catheter; a bushing is movably sleeved on the outer wall of the aspiration tube, and comprises a Y-shaped connector, a dual-lumen catheter and a balloon; the Y-shaped connector is connected with the dual-lumen catheter, and the balloon is arranged on the outer wall of the distal end of the dual-lumen catheter; an interference metal wire can be inserted into the aspiration tube; and the distal end of the interference metal wire can extend outside the distal end of the aspiration tube. The bushing is movably arranged outside the aspiration tube, and the balloon is not limited when the aspiration tube moves, so that the thrombus aspiration catheter can quickly eliminate thrombi dispersed in a wide area of a blood vessel, and treats embolism of coronary peripheral microvessels; and when large or high-viscosity thrombus is encountered, the thrombus can be scattered by utilizing the interference metal wire and aspired, so that the thrombus aspiration catheter can treat the thrombus which is difficult to aspire.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, especially relate to a kind of thrombus suction catheter and method for using thereof that is used for aspirating and removing in the human vas refuse.
Background technology
The known suction catheter that the thrombosis that a kind of coronary artery that is used to attract heart produces is arranged can be directly attracts the thrombosis of arteria coronaria intra-arterial growth, prevents the thrombosis blocking blood flow, causes acute myocardial infarction and makes the function reduction of heart.Above-mentioned thrombosis aspiration therapy is to insert the pipeline that is called thrombus suction catheter from shank or arm, makes it arrive IC diseased region, with thrombosis attraction itself and the Therapeutic Method removed.Compare with the arteria coronaria intracavity forming operation with the medicine thrombolytic therapy; The thrombosis aspiration therapy can be removed itself the thrombosis that causes blood vessel to narrow down or stop up, and the arteria coronaria that therefore can avoid can't consoluet thrombosis causing because of medicament institute is inaccessible and utilize thrombosis that inferior vena cava balloon dilation produces towards the arteria coronaria tip equivalent risk that disperses.
The microvascular thromboembolism of arteria coronaria tip is common in when utilizing foley's tube to carry out the arteria coronaria intracavity forming operation or afterwards; The thrombosis, grumeleuse and the chip that come off from diseased region disperse to arteria coronaria tip blood capillary with blood flow; Form thromboembolism; Therefore after even diseased region is opened by expansion, the blood vessel that coronary angiography still can place, lesions showed position slow resurgent occurs or does not have the phenomenon of resurgent.When above-mentioned situation appears in arteria coronaria intracavity forming postoperative, also can attempt adopting thrombus suction catheter to remove and form the material that stops up.
Yet, when existing suction catheter aspirates thrombosis, more be to be drawn into the blood that flows to the pathological changes near-end, cause the problem of suction effect difference.Simultaneously, maybe the thrombosis that come off from diseased region, grumeleuse and chip be rushed at the arteria coronaria tip, further cause the blood capillary thromboembolism of arteria coronaria tip from the blood flow of pathological changes near-end.For above-mentioned reasons, the suction catheter of now also is unfavorable for the effect of the arteria coronaria tip blood capillary thromboembolism of cleaning arteria coronaria intracavity forming postoperative.
In order to solve the above problems, United States Patent (USP) US discloses a kind of pipe guide 7,422, No. 579, comprises a guiding catheter and the vacuum sheath that is pumped into interruption-forming that is positioned at the thrombosis of its far-end for suction and removing thrombosis.In the time of this catheter aspirates thrombi, stop blood from the pathological changes near-end through being positioned at the outer ball of sheath.In addition,, cause the blood flow of pathological changes far-end to produce adverse current, help suction thrombosis and grumeleuse and chip because the blood flow of pathological changes near-end is blocked.
But, owing to during the suction of the vacuum sheath of 7,422, No. 579 disclosed pipe guides of United States Patent (USP) US, be positioned at the outer ball of sheath and expanded, so the vacuum sheath can not move forward and backward in blood vessel in the aspiration procedure.Therefore when removing is dispersed in the thrombosis in the blood vessel extensive region, spend long time, and in order to let conduit repeat aspiration and motion in blood vessel, complicated operation is inevitable.Simultaneously, the mobile of vacuum sheath is restricted, be unfavorable for that the vacuum sheath arrives to remove thromboembolism near the microvascular position of arteria coronaria tip, and be unfavorable therefore for solving slow resurgent that arteria coronaria intracavity forming postoperative occurs or the effect of not having the resurgent situation.
In addition; Because the vacuum sheath of 7,422, No. 579 disclosed pipe guides of United States Patent (USP) US is double lumen tubes; In the middle of bigger tract be used for thrombosis and attract; Intracavity is negative pressure during suction, and less tract is the contrast agent that is used to carry dilating sacculus, and intracavity is barotropic state during balloon expandable.Therefore have an opportunity to cause the tract extruding that is in malleation in the vacuum sheath to be in the tract of negative pressure, increase the resistance that aspirates tract, the effect of influence suction.
In addition, the effect during big and heavy bodied thrombosis is unfavorable in draw volume for current thrombus suction catheter.
Summary of the invention
The defective that The present invention be directed to the existence of above-mentioned background technology provides a kind of and can remove blood vessel embolism, the ideal thrombus suction catheter of suction effect fast.
For realizing above-mentioned purpose, the invention discloses a kind of thrombus suction catheter, it comprises suction tube; Said suction tube comprises base; Said base connecting duct, mobilizable sleeve pipe that is arranged with on the outer wall of said suction tube, said sleeve pipe comprises Y type union joint, double lumen tube and sacculus; Said Y type union joint connects double lumen tube, and sacculus is arranged on the far-end outer wall of double lumen tube; Can insert the interference tinsel in the said suction tube, said interference far-end wiry can stretch out outside the far-end of suction tube.
Further, said double lumen tube has main chamber and secondary chamber; Y type union joint has first passage and second channel, and said first passage is communicated with main chamber and lets suction tube pass, and said second channel can be communicated with secondary chamber, and is connected with sacculus through secondary chamber.
Further, offer first opening and second opening on the said secondary chamber, said first opening is arranged at the second channel place, and the end of said second channel connects liquid pressure pump, and it is outer and coat second opening that said sacculus is sheathed on double lumen tube.
Further, said conduit is a single lumen catheter, and the far-end of said conduit is the opening of cutting sth. askew, and the said opening part of cutting sth. askew is provided with guidewire lumen.
Further, the junction of said base and conduit is provided with first protective sleeve; Said Y type union joint and the double lumen tube place of socket-connecting are provided with second protective sleeve.
Further, can insert heart yearn in the said suction tube, said heart yearn comprises the heart yearn handle, but heart yearn handle interlocking is on base.
Further, said double lumen tube is provided with the first development ring by the part of sacculus parcel; The outer wall of said guidewire lumen is provided with the second development ring.
Further, the outer surface of said suction tube and telescopic surfaces externally and internally all have the lubricity cover layer.
Further, the method for using of said thrombus suction catheter comprises the steps: that step 1.: casing pipe sleeve is connected on the suction tube, and heart yearn insertion and interlocking are on suction tube; Step is 2.: suction tube is inserted blood vessel along guiding wire, and push to the near-end of target pathological changes; Step is 3.: sleeve pipe is pushed to the near-end of target pathological changes along suction tube, use sacculus on the liquid pressure pump expanded casing with the blood flow of blocking lesion near-end then; Step is 4.: unclamp and withdraw heart yearn, aspirator is connected to suction tube, the opening of cutting sth. askew with the suction tube far-end moves to the target aspiration ranges then; Step is 5.: the controlled valve through the suction Controlled device comes the suction progress of suction Controlled pipe to thrombosis, can move forward and backward suction tube to remove thrombosis, grumeleuse and the chip in the target zone along guiding wire in the aspiration procedure; Step is 6.: when running into volume greatly and during heavy bodied thrombosis, unclamp and withdraw aspirator, with disturbing tinsel to insert logical and stretching out the far-end of suction tube, break up above-mentioned thrombosis; Step is 7.: withdraw the interference tinsel, connect aspirator once more, suction is also removed thrombosis, grumeleuse and the chip in the scope of target.
In sum, sleeve pipe of the present invention is arranged at outside the suction tube movably, can not receive the sacculus restriction when making suction tube movable, the thrombosis that the present invention can be removed fast be dispersed in the blood vessel extensive region and handle the microvascular thromboembolism of arteria coronaria tip; When running into volume greatly and during heavy bodied thrombosis, after breaing up thrombosis, aspirates again by interference tinsel capable of using, and let the present invention can handle the thrombosis of inhaling than hard-pumped.
Description of drawings
Structural representation when Fig. 1 disturbs tinsel for the present invention installs.
Structural representation when Fig. 2 installs heart yearn for the present invention.
Fig. 3 is a telescopic generalized section of the present invention.
Fig. 4 is the generalized section of double lumen tube of the present invention.
The specific embodiment
For further understanding characteristic of the present invention, technological means and the specific purposes that reached, function, the present invention is described in further detail below in conjunction with the accompanying drawing and the specific embodiment.
See also Fig. 1; Thrombus suction catheter of the present invention comprises suction tube 100 and sleeve pipe 200; The surfaces externally and internally of the outer surface of suction tube 100 and sleeve pipe 200 all has the lubricity cover layer; Reduce friction makes the activity between each parts more smooth, thereby makes suction catheter arrive the target diseased region more easily.
See also Fig. 1 and Fig. 2, suction tube 100 comprises base 11, base 11 connecting ducts 12.Base 11 is used to connect aspirator and thrombosis is carried out negative pressure-pumping, and aspirator is made up of negative pressure bottle, negative pressure connection tube and three-way cock, and three-way cock is the controlled valve that is used for the suction Controlled progress on the aspirator.Conduit 12 is a single lumen catheter; The tube wall of conduit 12 has certain intensity, prevents that conduit from subsiding when negative pressure-pumping, and the far-end of conduit 12 is the opening 121 of cutting sth. askew; The opening 121 of cutting sth. askew makes the area of section of the area of thrombosis suction inlet greater than conduit 12; Help the suction of thrombosis, let opening 121 parts of cutting sth. askew comparatively soft simultaneously, opening 121 places of cutting sth. askew are provided with guidewire lumen 13; The outer wall of guidewire lumen 13 is provided with the second development ring 131 of annular metal system, and operator can discern the position of suction catheter far-end through the second development ring 131.Base 11 is provided with first protective sleeve 14 with the junction of conduit 12, when operating, occurs kinking in order to avoid the base 11 and the junction of conduit 12 because of rapid firmness change.
Can insert in the suction tube 100 and disturb tinsel 30, disturb tinsel 30 to comprise handle 31 and metal wire, disturb the far-end of tinsel 30 to be hook-shaped and can to stretch out in outside the far-end of conduit 12, in order to break up the big or heavy bodied thrombosis of volume.
Can insert heart yearn 40 in the suction tube 100, heart yearn 40 comprises heart yearn handle 41, but heart yearn handle 41 interlockings are used to increase the pushing property of suction tube when transmitting on base 11.
See also Fig. 1 to Fig. 3, sleeve pipe 200 is mobilizable to be sheathed on the outer wall of suction tube 100.Sleeve pipe 200 comprises Y type union joint 21, double lumen tube 22 and sacculus 23.Y type union joint 21 connects double lumen tube 22; Sacculus 23 is arranged on the far-end outer wall of double lumen tube 22; Y type union joint 21 is provided with second protective sleeve 24 with double lumen tube 22 places of socket-connecting, and when operating, occurs kinking to avoid the Y type union joint 21 and the connecting portion of double lumen tube 22 because of rapid firmness change.Sacculus 23 is the highly conforming properties sacculus, makes the fluid pressure that operator can be relatively little that sacculus 23 is expanded to the volume that enough shutoff target pathological changes belong to blood vessel.
See also Fig. 3 and Fig. 4, double lumen tube 22 has main chamber 221 and secondary chamber 222, and the area of section in main chamber 221 is greater than the area of section in secondary chamber 222, increasing the interior diameter of suction tube 100 as far as possible, and then guarantees good suction effect.Y type union joint 21 has first passage 211 and second channel 212, and first passage 211 is communicated with main chamber 221 and lets suction tube 100 pass; Second channel 212 can be communicated with secondary chamber 222, and is connected with sacculus (23) through secondary chamber 222.The sealed at both ends in secondary chamber 222; Offer first opening 223 and second opening 224 on the secondary chamber 222; First opening 223 is arranged at second channel 212 places, and the end of second channel 212 connects liquid pressure pump, and sacculus 23 is sheathed on outside the double lumen tube 22 and coats second opening 224.Double lumen tube 22 is had first development of annular metal system to encircle 25 by the part center of sacculus 23 parcels, to show the position of sacculus 23; The overall diameter of the interior diameter in main chamber 221 decision conduit 12, for avoiding blood to leak into or any material spills the gap between main chamber 221 and the conduit 12, the overall diameter of conduit 12 needs enough interior diameters in approaching main chamber 221.The inner surface in main chamber 221 has lubricating coating, lowers the friction of main chamber 221 inner surfacies and suction tube 100 outer surfaces, and the motional effects of 200 pairs of suction tubes 100 of sleeve pipe is reduced to minimum.
The method for using of thrombus suction catheter of the present invention comprises the steps: that step 1.: sleeve pipe 200 is socketed on the suction tube 100, and heart yearn 40 insertions and interlocking are on suction tube 100; Step is 2.: suction tube 100 is inserted blood vessel along guiding wire, and push to the near-end of target pathological changes; Step is 3.: sleeve pipe 200 is pushed to the near-end of target pathological changes along suction tube 100, use sacculus 23 on the liquid pressure pump expanded casing 200 with the blood flow of blocking lesion near-end then; Step is 4.: unclamp and withdraw heart yearn 40, aspirator is connected to suction tube 100, the opening 121 of cutting sth. askew with suction tube 100 far-ends moves to the target aspiration ranges then; Step is 5.: the suction progress through the controlled valve of suction Controlled device comes 100 pairs of thrombosis of suction Controlled pipe can move forward and backward suction tube 100 to remove thrombosis, grumeleuse and the chip in the target zone along guiding wire in the aspiration procedure; Step is 6.: when running into volume greatly and during heavy bodied thrombosis, unclamp and withdraw aspirator, with disturbing tinsel 30 to insert logical and stretching out the far-ends of suction tube 100, break up above-mentioned thrombosis; Step is 7.: withdraw and disturb tinsel 30, connect aspirator once more, suction is also removed thrombosis, grumeleuse and the chip in the scope of target.
In sum; Sleeve pipe 200 of the present invention is arranged at outside the suction tube 100 movably; Can not receive the restriction of sacculus 23 when making suction tube 100 movable, the thrombosis that the present invention can be removed fast be dispersed in the blood vessel extensive region and handle the microvascular thromboembolism of arteria coronaria tip; When running into volume greatly and during heavy bodied thrombosis, after breaing up thrombosis, aspirates again by interference tinsel 30 capable of using, and let the present invention can handle the thrombosis of inhaling than hard-pumped.
The above embodiment has only expressed one embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as limitation of the scope of the invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with accompanying claims.
Claims (9)
1. thrombus suction catheter; Comprise suction tube (100); Said suction tube (100) comprises base (11); Said base (11) connecting duct (12) is characterized in that: mobilizable sleeve pipe (200) that is arranged with on the outer wall of said suction tube (100), and said sleeve pipe (200) comprises Y type union joint (21), double lumen tube (22) and sacculus (23); Said Y type union joint (21) connects double lumen tube (22), and sacculus (23) is arranged on the far-end outer wall of double lumen tube (22); Can insert in the said suction tube (100) and disturb tinsel (30), the far-end of said interference tinsel (30) can stretch out outside the far-end of suction tube (100).
2. thrombus suction catheter according to claim 1 is characterized in that: said double lumen tube (22) has main chamber (221) and secondary chamber (222); Y type union joint (21) has first passage (211) and second channel (212); Said first passage (211) is communicated with main chamber (221) and lets suction tube (100) pass; Said second channel (212) can be communicated with secondary chamber (222), and is connected with sacculus (23) through secondary chamber (222).
3. thrombus suction catheter according to claim 2; It is characterized in that: offer first opening (223) and second opening (224) on the said secondary chamber (222); Said first opening (223) is arranged at second channel (212) and locates; The end of said second channel (212) connects liquid pressure pump, and said sacculus (23) is sheathed on outside the double lumen tube (22) and coats second opening (224).
4. thrombus suction catheter according to claim 1 is characterized in that: said conduit (12) is a single lumen catheter, and the far-end of said conduit (12) is the opening of cutting sth. askew (121), and the said opening of cutting sth. askew (121) locates to be provided with guidewire lumen (13).
5. thrombus suction catheter according to claim 1 is characterized in that: said base (11) is provided with first protective sleeve (14) with the junction of conduit (12); Said Y type union joint (21) is provided with second protective sleeve (24) with double lumen tube (22) place of socket-connecting.
6. thrombus suction catheter according to claim 1 is characterized in that: can insert heart yearn (40) in the said suction tube (100), said heart yearn (40) comprises heart yearn handle (41), heart yearn handle (41) but interlocking on base (11).
7. thrombus suction catheter according to claim 1 is characterized in that: said double lumen tube (22) is provided with the first development ring (25) by the part of sacculus (23) parcel; The outer wall of said guidewire lumen (13) is provided with the second development ring (131).
8. thrombus suction catheter according to claim 1 is characterized in that: the surfaces externally and internally of the outer surface of said suction tube (100) and sleeve pipe (200) all has the lubricity cover layer.
9. the method for using of a thrombus suction catheter comprises the steps: that step is 1.: sleeve pipe (200) is socketed on the suction tube (100), heart yearn (40) insert and interlocking on suction tube (100); Step is 2.: suction tube (100) is inserted blood vessel along guiding wire, and push to the near-end of target pathological changes; Step is 3.: sleeve pipe (200) is pushed to the near-end of target pathological changes along suction tube (100), use sacculus (23) on the liquid pressure pump expanded casing (200) with the blood flow of blocking lesion near-end then; Step is 4.: unclamp and withdraw heart yearn (40), aspirator is connected to suction tube (100), the opening of cutting sth. askew (121) with suction tube (100) far-end moves to the target aspiration ranges then; Step is 5.: the controlled valve through the suction Controlled device comes the suction progress of suction Controlled pipe (100) to thrombosis, can move forward and backward suction tube (100) to remove thrombosis, grumeleuse and the chip in the target zone along guiding wire in the aspiration procedure; Step is 6.: when running into volume greatly and during heavy bodied thrombosis, unclamp and withdraw aspirator, will disturb tinsel (30) to insert to lead to and stretch out the far-end of suction tube (100), break up above-mentioned thrombosis; Step is 7.: withdraw and disturb tinsel (30), connect aspirator once more, suction is also removed thrombosis, grumeleuse and the chip in the scope of target.
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| CN201110222609A CN102319097A (en) | 2011-08-04 | 2011-08-04 | Thrombus aspiration catheter and using method thereof |
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| CN201110222609A CN102319097A (en) | 2011-08-04 | 2011-08-04 | Thrombus aspiration catheter and using method thereof |
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| CN104586470A (en) * | 2015-01-28 | 2015-05-06 | 湖南埃普特医疗器械有限公司 | Thrombus aspiration device and thrombus aspiration catheter |
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| CN104586470A (en) * | 2015-01-28 | 2015-05-06 | 湖南埃普特医疗器械有限公司 | Thrombus aspiration device and thrombus aspiration catheter |
| CN104997550A (en) * | 2015-02-15 | 2015-10-28 | 首都医科大学宣武医院 | Blood vessel automatic thrombolysis system |
| CN104997550B (en) * | 2015-02-15 | 2019-11-15 | 首都医科大学宣武医院 | A kind of automatic thrombus dissolving system of blood vessel |
| CN104758029B (en) * | 2015-04-16 | 2016-03-16 | 黄经春 | A kind of thrombus suction catheter and application thereof |
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Application publication date: 20120118 |