CN215129560U - Thrombus aspiration catheter and thrombus aspiration device containing the same - Google Patents
Thrombus aspiration catheter and thrombus aspiration device containing the same Download PDFInfo
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- CN215129560U CN215129560U CN202022980088.1U CN202022980088U CN215129560U CN 215129560 U CN215129560 U CN 215129560U CN 202022980088 U CN202022980088 U CN 202022980088U CN 215129560 U CN215129560 U CN 215129560U
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Abstract
The utility model discloses a thrombus suction catheter and thrombus suction device containing the catheter, which belongs to the technical field of medical instruments. The utility model provides a thrombus suction catheter, including the pipe main part, the sacculus, first Y type valve and second Y type valve, the pipe main part includes outer pipe and the inner catheter that is located outer pipe inside, the head end of inner catheter and outer pipe is laminated mutually, except the head end, leave the clearance between the other parts of inner catheter and outer pipe, the part that inner catheter and outer pipe are laminated mutually is equipped with a plurality of suction holes, the tail end of inner catheter stretches out partly from the tail end of outer pipe, the sacculus cover is established on outer pipe, the part that outer pipe is located sacculus inside is equipped with a plurality of notes liquid holes, the first main tributary of first Y type valve is linked together with outer pipe, the second main tributary of second Y type valve is linked together with inner catheter, simple structure; when the thrombus suction catheter is used for sucking thrombus, only the first Y-shaped valve is needed to inject liquid into the saccule, and then the second Y-shaped valve sucks the thrombus, so that the operation is convenient.
Description
Technical Field
The utility model relates to a thrombus suction catheter and thrombus suction device containing the catheter, which belongs to the technical field of medical instruments.
Background
Thrombi are small patches of blood flow that form on the surface of a denuded or repaired site within a blood vessel of the cardiovascular system. In variable flow dependent patterns, the thrombus is composed of insoluble fibrin, deposited platelets, accumulated leukocytes, and entrapped erythrocytes. If the thrombus forms blockage in the blood vessel of the human body, the blood flow is interrupted, and the diseases such as myocardial infarction, cerebral apoplexy and the like which can endanger life are easily caused.
At present, a clinically common artificial mechanical method for restoring the patency of blood vessels is thrombus aspiration. Thrombectomy is the main intervention of a human blood vessel with the aid of a thrombectomy catheter to remove the thrombus forming a blockage in the human blood vessel. The therapeutic rate of revascularization using thrombectomy is high, however, existing thrombectomy still has many drawbacks.
For example, the inflatable balloon used by the existing thrombus aspiration catheter has low elasticity, and can cause great damage to blood vessels after accidental rupture; the inflatable balloon used by the existing thrombus aspiration catheter has a small inflatable cavity and a single direction, and is easy to cause inflation difficulty due to extrusion; the friction force between an inflatable balloon used by the conventional thrombus aspiration catheter and a blood vessel wall is low, and the risk of no re-flowing after operation due to relative sliding of the inflatable balloon and the blood vessel wall is greatly increased; guide wires used by the conventional thrombus suction catheter are all oblique incision head ends, and although the oblique incision head ends are favorable for sucking large thrombus, the risk of cutting the blood vessel wall is greatly increased; the existing thrombus aspiration catheter has complex structure and inconvenient operation.
Therefore, the thrombus suction catheter which is not easy to damage the blood vessel, saves labor and is fast to inflate the balloon, is not easy to slide relative to the blood vessel wall, has a simple structure and is convenient to operate is urgently needed to overcome the defects of the existing thrombus suction catheter.
SUMMERY OF THE UTILITY MODEL
[ problem ] to
The to-be-solved technical problem of the utility model is to provide a difficult injury blood vessel, the sacculus is aerifyd laborsavingly, swift, difficult relative slip between sacculus and the blood vessel wall, simple structure to, convenient operation's thrombus suction catheter.
[ solution ]
In order to solve the technical problem, the utility model provides a thrombus suction catheter, which comprises a catheter main body and a saccule;
the catheter main body comprises an outer catheter and an inner catheter positioned in the outer catheter, the tail end of the inner catheter is communicated with a suction device, the tail end of the outer catheter is communicated with a liquid injection device or an inflation device, the inner catheter is attached to the head end of the outer catheter, gaps are reserved between the rest parts of the inner catheter and the outer catheter except the head end, a plurality of suction holes are formed in the portion where the inner catheter and the outer catheter are attached, and the tail end of the inner catheter extends out of one part of the tail end of the outer catheter;
the balloon is sleeved on the outer catheter, and a plurality of liquid injection holes are formed in the part, located inside the balloon, of the outer catheter.
In one embodiment of the present invention, the thrombus aspiration catheter further comprises a first Y-valve; the first Y-shaped valve comprises a first main branch and a first side branch, the first main branch is communicated with the outer catheter, and one end, which is not connected with the first main branch, of the first side branch is provided with a liquid injection device or an inflation device, so that the tail end of the outer catheter is communicated with the liquid injection device or the inflation device.
In one embodiment of the present invention, the thrombus aspiration catheter further comprises a second Y-valve; the second Y-shaped valve comprises a second main branch and a second side branch, the second main branch is communicated with the inner catheter, and a suction device is arranged at one end of the second side branch, which is not connected with the second main branch, so that the tail end of the inner catheter is communicated with the suction device. The head end refers to the end close to the thrombus. The tail end refers to the end close to the operator.
In an embodiment of the present invention, the outer guide tube and the inner guide tube are coaxially disposed.
In an embodiment of the present invention, the central portion of the outer catheter inside the balloon is provided with four opposite liquid injection holes.
In an embodiment of the present invention, the head ends of the outer catheter and the inner catheter are attached to each other by thermal contraction.
In an embodiment of the present invention, the head end of the inner catheter and the head end of the outer catheter that are attached to each other through thermal shrinkage are arc-shaped soft heads.
In an embodiment of the present invention, the balloon is an injection balloon.
In an embodiment of the present invention, the balloon cover is disposed between the head end and the tail end of the outer catheter and is close to the head end.
In an embodiment of the present invention, the surface of the balloon has a plurality of protrusions uniformly distributed thereon.
In an embodiment of the present invention, the protrusion is an arc protrusion.
In one embodiment of the present invention, the head end of the first main branch is communicated with the tail end of the outer catheter.
In one embodiment of the present invention, the head end of the second main branch is communicated with the tail end of the inner conduit.
In an embodiment of the present invention, the outer surface of the tail end of the outer catheter is fixed to the head end of the first main branch by bonding with glue.
In an embodiment of the present invention, the outer surface of the tail end of the inner catheter is fixed to the tail end of the first main branch by bonding with glue.
In an embodiment of the present invention, the tail end of the first main branch and the head end of the second main branch are connected to each other through a luer connector.
The utility model discloses an in an embodiment, the tail end of first main tributary is female luer structure, and the head end of second main tributary is public luer structure, and both link to each other through luer joint.
In an embodiment of the present invention, the end of the second main branch that is not connected to the first main branch is provided with a soft plug of silica gel.
In one embodiment of the present invention, a check valve is disposed on an end of the first side branch not connected to the first main branch; the first side branch is communicated with the liquid injection device or the inflation device through a one-way valve.
In an embodiment of the present invention, the one-way valve is connected to the first lateral branch through a luer connector.
In an embodiment of the present invention, the liquid injection device or the air inflation device is connected to the check valve through a luer connector.
In an embodiment of the invention, the end of the second side branch not connected to the second main branch is provided with a suction device.
In an embodiment of the present invention, the suction device is connected to the second side branch through a luer connector.
In one embodiment of the present invention, the thrombus aspiration catheter further comprises a metal interference wire; the metal interference wire passes through the inner catheter.
In one embodiment of the present invention, the metal interference wire passes through the silica gel soft plug and moves in the inner catheter.
The utility model discloses an in an implementation, be equipped with a cross passageway on the soft stopper of silica gel, the metal interference silk passes the soft stopper of silica gel through the cross passageway.
In an embodiment of the present invention, the center of the silica gel soft plug is provided with a cross-shaped passage.
In an embodiment of the present invention, the head end of the metal interference wire is an arc-shaped soft head.
In an embodiment of the present invention, a developing ring is disposed at one end or both ends of the balloon.
In one embodiment of the present invention, the developing ring is embedded inside the inner guide.
In one embodiment of the present invention, the inner catheter and the outer catheter are woven with a metal mesh.
In one embodiment of the present invention, the outer diameter of the outer catheter at the balloon portion is smaller than the outer diameter of the other portions thereof.
The utility model also provides a thrombus suction device, thrombus suction device contains above-mentioned thrombus suction catheter.
[ advantageous effects ]
(1) The utility model provides a thrombus suction catheter, thrombus suction catheter includes pipe main part, sacculus, first Y type valve and second Y type valve, the pipe main part includes outer pipe and the inner catheter that is located outer pipe inside, the head end of inner catheter and outer pipe is laminated mutually, except the head end, leave the clearance between the rest parts of inner catheter and outer pipe, the part that inner catheter and outer pipe are laminated mutually is equipped with a plurality of suction holes, the tail end of inner catheter stretches out a part from the tail end of outer pipe, the sacculus cover is established on outer pipe, the part that outer pipe is located sacculus inside is equipped with a plurality of notes liquid holes, the first main tributary of first Y type valve is linked together with outer pipe, the second main tributary of second Y type valve is linked together with inner catheter; when using this thrombus suction catheter suction thrombus, only need earlier annotate the liquid to the sacculus through first Y type valve, rethread second Y type valve to the thrombus aspirate can, consequently, the utility model discloses a thrombus suction catheter simple structure and convenient operation. Further, thrombus suction catheter is equipped with the metal interference wire, and the bold thrombus in the blood vessel can be dredged to the metal interference wire, the thrombus suction of being convenient for, simultaneously, it can freely stretch out and draw back in the catheter through the soft stopper of built-in silica gel of second Y type valve, and at the suction in-process, needn't thoroughly take it out the blood vessel, is convenient for in time dredge the blood vessel, and this setting makes the utility model discloses a thrombus suction catheter operates more conveniently. Furthermore, thrombus suction catheter has set up the development ring in that the sacculus is close to one of inner catheter head end, and the existence of development ring is convenient for confirm the sacculus position, reduces the operation degree of difficulty, and this setting also makes the utility model discloses a thrombus suction catheter operates more conveniently.
(2) The utility model provides a thrombus suction catheter, thrombus suction catheter's sacculus is for annotating the liquid sacculus, annotates the liquid sacculus for aerifing sacculus elasticity is bigger, blocks up the effect gentler, if the sacculus breaks, annotates the liquid sacculus and is lower to the harm of vascular wall, consequently, the utility model discloses a thrombus suction catheter is difficult for damaging the blood vessel. Further, thrombus suction catheter is equipped with inner catheter and outer catheter, and the head end that inner catheter and outer catheter pass through the pyrocondensation and laminate mutually is the soft head of arc, and the soft head of arc can protect the vascular wall when the pipe main part gets into the blood vessel, and this setting makes the utility model discloses a thrombus suction catheter is difficult for damaging the blood vessel more. Furthermore, thrombus suction catheter is equipped with the metal interference wire, and the head end of metal interference wire is the soft head of arc, and the soft head of arc can be when the metal interference wire gets into the interference thrombus protection vascular wall, and this setting also makes the utility model discloses a thrombus suction catheter is difficult for damaging the blood vessel more.
(3) The utility model provides a thrombus suction catheter, including the sacculus notes liquid chamber of thrombus suction catheter distributes between pipe and outer pipe, can realize 360 degrees notes liquid, consequently, the utility model discloses the sacculus of thrombus suction catheter is more laborsaving, swift when annotating the liquid.
(4) The utility model provides a thrombus suction catheter, evenly distributed has a plurality of arc archs on thrombus suction catheter's the sacculus, and the arc arch has increased the roughness on sacculus surface, has enlarged the sliding friction power between sacculus and the vascular wall, can block up the blood vessel better, consequently, the utility model discloses difficult relative slip between the sacculus of thrombus suction catheter and vascular wall, this is showing when having reduced the suction thrombus, and the thrombus flows into the risk that the distal end vein produces the postoperative no refluence. Further, consider that the arc arch can influence the trafficability characteristic of pipe main part in the blood vessel, the outer pipe external diameter of thrombus suction catheter sacculus part slightly is lighter than all the other parts of outer pipe, makes things convenient for the sacculus to be unsettled when current in the blood vessel, reduces the pipe main part at the in-process of marcing and the vascular wall frictional force within a definite time, consequently, the utility model discloses thrombus suction catheter's pipe main part is current smooth and easy in the blood vessel.
(5) The utility model provides a thrombus suction catheter, thrombus suction catheter is equipped with the soft stopper of check valve and silica gel, and the existence of the soft stopper of check valve and silica gel is favorable to annotating liquid and thrombus suction process for the sacculus and creates airtight space, when preventing that external gas from getting into the human body, has reduced the suction degree of difficulty, consequently, uses the utility model discloses a thrombus suction catheter suction thrombus degree of difficulty is lower.
(6) The utility model provides a thrombus suction catheter, thrombus suction catheter has set up a plurality of suction holes in the part that inner catheter and outer catheter laminated mutually, and the existence in suction hole can improve the suction efficiency of thrombus, increases the blood vessel recirculation rate, consequently, uses the utility model discloses a success rate of thrombus suction catheter suction thrombus is higher.
(7) The utility model provides a thrombus suction catheter, the inner catheter and the outer catheter of thrombus suction catheter are all metal mesh and weave and form, and the existence of all metal mesh weave structure has improved the bearing capacity of pipe main part to the suction negative pressure, consequently, the utility model discloses a thrombus suction catheter is not fragile.
Drawings
FIG. 1: an elevation view of one embodiment of the thrombus aspiration catheter of the present invention.
FIG. 2: the utility model discloses a plan view of thrombus aspiration catheter's an embodiment.
FIG. 3: the utility model discloses a section view of an embodiment of thrombus aspiration catheter.
FIG. 4: the utility model discloses the front view of an embodiment of the sacculus of thrombus suction catheter.
In fig. 1-4, a catheter main body 1, a balloon 2, a first Y-shaped valve 3, a second Y-shaped valve 4, an outer catheter 5, an inner catheter 6, a suction hole 7, a liquid injection hole 8, a first main branch 9, a first side branch 10, a second main branch 11, a second side branch 12, a bulge 13, a silica gel soft plug 14, a one-way valve 15, a metal interference wire 16 and a developing ring 17.
Detailed Description
The invention will be further elucidated with reference to the following specific embodiments and the accompanying drawings.
Example 1: thrombus aspiration catheter
As shown in fig. 1-4, the present invention provides a thrombus aspiration catheter, which includes a catheter main body 1 and a balloon 2;
the catheter main body 1 comprises an outer catheter 5 and an inner catheter 6 positioned in the outer catheter 5, the tail end of the inner catheter 6 is communicated with a suction device, the tail end of the outer catheter 5 is communicated with a liquid injection device or an inflation device, the head ends of the inner catheter 6 and the outer catheter 5 are attached, gaps are reserved between the inner catheter 6 and the rest parts of the outer catheter 5 except the head ends, a plurality of suction holes 7 are formed in the portion where the inner catheter 6 and the outer catheter 5 are attached, and the tail end of the inner catheter 6 extends out of one part of the tail end of the outer catheter 5;
the sacculus 2 is sleeved on the outer catheter 5, and a plurality of liquid injection holes 8 are formed in the part, located inside the sacculus 2, of the outer catheter 5.
Preferably, the thrombus aspiration catheter further comprises a first Y-valve 3; the first Y-shaped valve 3 comprises a first main branch 9 and a first side branch 10, the first main branch 9 is communicated with the outer catheter 5, and an injection device or an inflation device is arranged at one end of the first side branch 10, which is not connected with the first main branch 9, so that the tail end of the outer catheter 5 is communicated with the injection device or the inflation device.
Preferably, the thrombus aspiration catheter further comprises a second Y-valve 4; the second Y-valve 4 comprises a second main branch 11 and a second side branch 12, the second main branch 11 is communicated with the inner conduit 6, and the end of the second side branch 12 not connected with the second main branch 11 is provided with a suction device, so that the tail end of the inner conduit 6 is communicated with the suction device. The head end refers to the end close to the thrombus. The tail end refers to the end close to the operator. When using this thrombus suction catheter suction thrombus, only need earlier annotate the liquid to the sacculus through first Y type valve, rethread second Y type valve to the thrombus aspirate can, consequently, the utility model discloses a thrombus suction catheter simple structure and convenient operation. The sacculus annotates the liquid chamber and distributes between inner catheter and outer catheter, can realize 360 degrees notes liquid, consequently, the utility model discloses the sacculus of thrombus suction pipe is more laborsaving, swift when annotating the liquid. The existence of suction hole can improve the suction efficiency of thrombus, increases the blood vessel rate of recanalization, consequently, uses the utility model discloses a success rate of thrombus suction catheter suction thrombus is higher.
Preferably, the outer and inner conduits 5, 6 are coaxially arranged.
Preferably, the central part of the outer catheter 5 inside the balloon 2 is provided with four liquid injection holes 8 opposite to each other in pairs.
Preferably, the head ends of the outer catheter 5 and the inner catheter 6 are attached by heat shrinking.
Preferably, the head ends of the inner catheter 5 and the outer catheter 6 which are jointed by thermal shrinkage are arc-shaped soft heads. The soft head of arc can protect the vascular wall when the pipe main part gets into the blood vessel, and this setting makes the utility model discloses a thrombus suction catheter is difficult for damaging the blood vessel more.
Preferably, the balloon 2 is an infusion balloon. Annotate the liquid sacculus for aerifing sacculus elasticity is bigger, blocks up the effect gentler, if the sacculus breaks, annotates the liquid sacculus and lower to the harm of vascular wall, consequently, the utility model discloses a thrombus suction catheter is difficult for damaging the blood vessel.
Preferably, the balloon 2 is sleeved between the head end and the tail end of the outer catheter 5 at a part close to the head end.
Preferably, a plurality of protrusions 13 are uniformly distributed on the surface of the balloon 2.
Preferably, the protrusion 13 is an arc-shaped protrusion. The arc arch has increased the roughness on sacculus surface, has enlarged the sliding friction power between sacculus and the vascular wall, can block up the blood vessel better, consequently, the utility model discloses difficult relative slip between sacculus and the vascular wall of thrombus suction catheter, this is showing when having reduced the suction thrombus, and the thrombus flows into the risk that no refluence of distal end vein production postoperative.
Preferably, the head end of the first main branch 9 is in communication with the tail end of the outer conduit 5.
Preferably, the head end of the secondary main branch 9 is in communication with the tail end of the inner conduit 6.
Preferably, the outer surface of the trailing end of the outer catheter 5 is adhesively fixed to the head end of the first main branch 9 by glue.
Preferably, the outer surface of the trailing end of said inner conduit 6 is fixed to the trailing end of the first main branch 9 by gluing.
Preferably, the tail end of the first main branch 9 and the head end of the second main branch 11 are connected through a luer connector.
Preferably, the tail end of the first main branch 9 is in a female luer structure, the head end of the second main branch 11 is in a male luer structure, and the two are connected through a luer connector.
Preferably, the end of the second main branch 11, which is not connected with the first main branch 9, is provided with a silica gel soft plug 14.
Preferably, a one-way valve 15 is arranged at one end of the first side branch 10, which is not connected with the first main branch 9; the first side branch 10 is communicated with the liquid injection device or the inflation device through a one-way valve 15. The existence of check valve and soft stopper of silica gel is favorable to annotating liquid and thrombus suction process creation airtight space for the sacculus, when preventing that external gas from getting into the human body, has reduced the suction degree of difficulty, consequently, uses the utility model discloses a thrombus suction catheter suction thrombus degree of difficulty is lower.
Preferably, the one-way valve 15 is connected with the first lateral branch 10 through a luer connector.
Preferably, the liquid injection device or the air inflation device is connected with the one-way valve 15 through a luer connector.
Preferably, the end of the second side branch 12 not connected to the second main branch 11 is provided with suction means.
Preferably, the suction device is connected to the second side branch 12 by a luer fitting.
Preferably, the thrombus aspiration catheter further comprises a metal interference wire 16; the metal interference wire 16 passes through the inner catheter 6. The big piece thrombus in the metal interference silk can dredge the blood vessel, and the thrombus suction of being convenient for, simultaneously, it can freely stretch out and draw back in the pipe through the soft stopper of built-in silica gel of second Y type valve, and at the suction in-process, needn't thoroughly take it out the blood vessel, is convenient for in time dredge the blood vessel, and this setting makes the utility model discloses a thrombus suction catheter operation is more convenient.
Preferably, the metal interference wire 16 moves through the silicone cork 14 inside the inner catheter 6.
Preferably, a cross-shaped passage is arranged on the silica gel soft plug 14, and the metal interference wire 16 passes through the silica gel soft plug 14 through the cross-shaped passage.
Preferably, the center of the silica gel soft plug 14 is provided with a cross-shaped passage.
Preferably, the head end of the metal interference wire 16 is an arc-shaped soft head. The head end of metallic interference silk is the soft head of arc, and the soft head of arc can be when the metallic interference silk gets into the interference thrombus protection vascular wall, and this setting also makes the utility model discloses a thrombus suction catheter is difficult for damaging the blood vessel more.
Preferably, a developing ring 17 is provided at one or both ends of the balloon 2.
Preferably, the developing ring 17 is embedded inside the inner guide. The existence of developing ring is convenient for confirm the sacculus position, reduces the operation degree of difficulty, and this setting also makes the utility model discloses a thrombus suction catheter operates more conveniently.
Preferably, the inner catheter 6 and the outer catheter 5 are woven from an entirely metal mesh. The existence of full metal mesh woven structure has improved the bearing capacity of pipe main part to the suction negative pressure, consequently, the utility model discloses a thrombus suction catheter is not fragile.
Preferably, the outer catheter 5 has a smaller outer diameter at the portion located on the balloon 2 than at other portions thereof. Consider that the arc arch can influence the trafficability characteristic of pipe main part in the blood vessel, the outer pipe external diameter of thrombus suction catheter sacculus part slightly is lighter than all the other parts of outer pipe, makes things convenient for the sacculus to be unsettled when current in the blood vessel, reduces the pipe main part at the in-process of marcing and the vascular wall frictional force within a definite time, consequently, the utility model discloses thrombus suction catheter's pipe main part is current smooth and easy in the blood vessel.
Example 2: thrombus aspiration method
The utility model provides a thrombus suction device, thrombus suction device contains embodiment 1 thrombus suction catheter.
Example 3: thrombus aspiration method
The thrombus aspiration catheter of example 1 was used, and the specific procedure was as follows:
(1) the catheter main body 1 is close to the thrombus near end by using a guide wire, the saccule 2 is injected through the first side branch 10 of the first Y-shaped valve 3, and the blood vessel is closed;
(2) after the blood vessel is closed, the guide wire is drawn out, the metal interference wire 16 is inserted, and the embolism position is dredged manually;
(3) and after the thrombus is loosened, the metal interference wire 16 is collected into the catheter main body 1, the thrombus is sucked through the second side branch 12 of the second Y-shaped valve 4, if the suction process is not smooth, the suction is stopped, and after the large thrombus is further loosened by using the metal interference wire 16, the suction is carried out again, and the step is repeated until the suction is completed.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. A thrombus aspiration catheter, characterized in that it comprises a catheter main body and a balloon;
the catheter main body comprises an outer catheter and an inner catheter positioned in the outer catheter, the tail end of the inner catheter is communicated with a suction device, the tail end of the outer catheter is communicated with a liquid injection device or an inflation device, the inner catheter is attached to the head end of the outer catheter, gaps are reserved between the rest parts of the inner catheter and the outer catheter except the head end, and a plurality of suction holes are formed in the attached part of the inner catheter and the outer catheter;
the balloon is sleeved on the outer catheter, and a plurality of liquid injection holes or gas injection holes are formed in the part, located inside the balloon, of the outer catheter.
2. A thrombus aspiration catheter as set forth in claim 1, further comprising a first Y-valve; the first Y-shaped valve comprises a first main branch and a first side branch, the first main branch is communicated with the outer conduit, one end of the first side branch is connected with the first main branch, and the other end of the first side branch is used for being communicated with the liquid injection device or the inflation device, so that the tail end of the outer conduit is communicated with the liquid injection device or the inflation device.
3. A thrombectomy catheter according to claim 2, further comprising a second Y-valve; the second Y-shaped valve comprises a second main branch and a second side branch, the second main branch is communicated with the inner catheter, one end of the second side branch is connected with the second main branch, and the other end of the second side branch is used for connecting a suction device, so that the tail end of the inner catheter is communicated with the suction device.
4. A thrombectomy catheter according to any of claims 1-3, wherein said outer catheter and inner catheter are coaxially disposed.
5. A thrombus aspiration catheter according to any one of claims 1 to 3, wherein the tip end where the inner catheter and the outer catheter are fitted is an arc-shaped soft tip.
6. A thrombectomy catheter according to claim 1, wherein said balloon is a liquid-filled balloon.
7. A thrombus aspiration catheter according to claim 1 or 6, wherein a plurality of protrusions are uniformly distributed on the surface of said balloon.
8. A thrombectomy catheter according to claim 3, wherein the end of the second main branch of the second Y-valve not connected to the first main branch of the first Y-valve is provided with a soft plug of silicone.
9. A thrombectomy catheter according to claim 2 or 3, wherein the end of the first side branch of the first Y-valve not connected to the first main branch of the first Y-valve is provided with a one-way valve; and the first side branch of the first Y-shaped valve is communicated with the liquid injection device or the inflation device through a one-way valve.
10. A thrombus aspiration device, comprising the thrombus aspiration catheter according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022980088.1U CN215129560U (en) | 2020-12-08 | 2020-12-08 | Thrombus aspiration catheter and thrombus aspiration device containing the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022980088.1U CN215129560U (en) | 2020-12-08 | 2020-12-08 | Thrombus aspiration catheter and thrombus aspiration device containing the same |
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| CN215129560U true CN215129560U (en) | 2021-12-14 |
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| CN202022980088.1U Active CN215129560U (en) | 2020-12-08 | 2020-12-08 | Thrombus aspiration catheter and thrombus aspiration device containing the same |
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