CN117084753B - Double-channel thrombus aspiration catheter - Google Patents
Double-channel thrombus aspiration catheter Download PDFInfo
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- CN117084753B CN117084753B CN202311356470.7A CN202311356470A CN117084753B CN 117084753 B CN117084753 B CN 117084753B CN 202311356470 A CN202311356470 A CN 202311356470A CN 117084753 B CN117084753 B CN 117084753B
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- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 230000017531 blood circulation Effects 0.000 claims abstract description 9
- 239000003814 drug Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 26
- 210000004204 blood vessel Anatomy 0.000 claims description 7
- 230000009977 dual effect Effects 0.000 claims description 7
- 239000008280 blood Substances 0.000 claims description 3
- 210000004369 blood Anatomy 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 230000001732 thrombotic effect Effects 0.000 claims 1
- 208000028867 ischemia Diseases 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002411 adverse Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 6
- 238000000605 extraction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002537 thrombolytic effect Effects 0.000 description 3
- 239000003146 anticoagulant agent Substances 0.000 description 2
- 230000036770 blood supply Effects 0.000 description 2
- 208000037260 Atherosclerotic Plaque Diseases 0.000 description 1
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 206010051055 Deep vein thrombosis Diseases 0.000 description 1
- 208000010378 Pulmonary Embolism Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 206010047249 Venous thrombosis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000010125 myocardial infarction Diseases 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
- A61B2017/22065—Functions of balloons
- A61B2017/22069—Immobilising; Stabilising
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
- A61B2017/22065—Functions of balloons
- A61B2017/22071—Steering
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22079—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with suction of debris
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22082—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance
- A61B2017/22084—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance stone- or thrombus-dissolving
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22094—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for for crossing total occlusions, i.e. piercing
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- External Artificial Organs (AREA)
- Surgical Instruments (AREA)
Abstract
The invention belongs to the technical field of medical appliances, and discloses a double-channel thrombus aspiration catheter. The double-channel thrombus aspiration catheter comprises: the inner wall of the catheter body is provided with a spiral groove near the outlet; an extension mechanism received within and extendable from the catheter body; the tube assembly is partially attached to the stretching mechanism and used for sucking thrombus, supplying air to the stretching mechanism and injecting liquid medicine, and is inserted into the catheter body and extends out of the other opening for operation. The double-channel thrombus aspiration catheter can be used for preferentially establishing a blood circulation channel when thrombus aspiration is carried out, separating thrombus by using the stretching mechanism, maintaining the channel stable, reducing the adverse effect of tissue ischemia and providing more operation time for thrombus aspiration.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a double-channel thrombus aspiration catheter.
Background
In human blood vessels, there are often deposits, atherosclerotic plaques, clots, and other obstructions; these obstructions may block or interrupt blood flow. When such obstructions occur in blood vessels to cause ischemia of the tissues, serious sequelae such as cerebral apoplexy, myocardial infarction, pulmonary embolism, deep venous thrombosis of lower limbs, etc. are possibly caused, and rapid elimination of such obstructions is an indispensable treatment step in the course of treatment of such patients.
The thrombus aspiration catheter is adopted to remove the blockage in a relatively effective way in clinical treatment of the diseases, and the treatment effect is quick and good; the existing aspiration technique uses a guide wire to guide a catheter to be close to thrombus, and the thrombus is removed by stirring the suction tube until the thrombus is removed, but in the case that the thrombus is blocked by the thrombus, the thrombus is completely removed in the mode, the blood is recovered to circulate, the condition that the thrombus is blocked by the blood vessel to cause tissue ischemia still exists in the process, if the thrombus is complicated and more time is required, the adverse effect caused by the tissue ischemia can be further aggravated, and in order to solve the problem, a double-channel thrombus aspiration catheter is provided.
Disclosure of Invention
The invention aims to provide a double-channel thrombus suction catheter, which can preferentially establish a blood circulation channel when thrombus suction is carried out, separate thrombus by utilizing an extension mechanism, maintain the stability of the channel, reduce the adverse effect of tissue ischemia and provide more operation time for thrombus suction.
In order to achieve the above purpose, the invention is realized by the following technical scheme: a dual channel thrombi aspiration catheter comprising:
the inner wall of the catheter body is provided with a spiral groove near the outlet;
an extension mechanism received within and extendable from the catheter body;
the tube assembly is partially attached to the stretching mechanism and is used for sucking thrombus, supplying air for the stretching mechanism and injecting liquid medicine, and is inserted into the catheter body and extends out of the other opening for operation;
the stretching mechanism includes:
the special-shaped spring is inserted into the spiral groove to enable the special-shaped spring to rotationally push along the spiral groove;
the operation pipe fitting is positioned in the catheter body, one end of the operation pipe fitting is fixedly connected with one end of the special-shaped spring positioned in the catheter body, and the other end of the operation pipe fitting extends out from the other end of the catheter body for operation and is used for operating the special-shaped spring to realize storage and release;
the extension hose is positioned on the inner side of the special-shaped spring, and the pipe assembly is arranged on the outer wall of the extension hose;
the connecting wires are arranged between the extension hose and the special-shaped spring for connection.
Preferably, the pipe assembly comprises a suction pipe, an air supply pipe and a liquid supply pipe, wherein a plurality of suction pipes are adhered to the outer wall of the expansion hose, a suction port is formed in one side, far away from the expansion hose, of the suction pipe, and the air supply pipe and the liquid supply pipe are adhered to the outer wall of the expansion hose and are provided with openings.
Preferably, the extension mechanism further comprises a connecting rubber, an extension air bag and a sealing air bag, wherein one end of the extension hose, far away from the catheter body, is fixedly connected with the outer wall of the extension air bag through the connecting rubber, the sealing air bag is arranged at one end, close to the catheter body, of the outer wall of the extension hose, the extension air bag and the sealing air bag are communicated with the outlet of the air supply pipe, so that the suction of the blood supply plug of the airtight space can be established, and the extension hose is assisted to extend to establish a blood circulation channel.
Preferably, the inner wall of the expansion air bag is provided with a plurality of blocking blocks, and the expansion air bag contracts after being emptied of air, so that the blocking blocks are attached to provide sealing.
Preferably, one side of each block fitting opening, which is far away from the catheter body, protrudes outwards to facilitate the thrombus to pass through, and the middle part of each block fitting opening is provided with a hole for the guide wire to pass through.
Preferably, the connecting wires are not less than three groups, each group of connecting wires is annularly arranged by taking the central axis of the stretching hose as a reference, and each suction pipe and each group of connecting wires are staggered.
Preferably, the suction port is located between the expanding balloon and the sealing balloon.
Preferably, the special-shaped spring comprises a same diameter section and a conical section, the conical end of the special-shaped spring is connected with the catheter body after the special-shaped spring is stretched, the stretching hose is positioned in the same diameter section, the diameter of the special-shaped spring can be changed by rotating the special-shaped spring to compress the special-shaped spring into the spiral groove for storage, and meanwhile the stretching hose is compressed for storage.
By adopting the technical scheme, the invention has the beneficial effects that:
1. the double-channel thrombus aspiration catheter can be used for preferentially establishing a blood circulation channel when thrombus aspiration is carried out, separating thrombus by using the stretching mechanism, maintaining the channel stable, reducing the adverse effect of tissue ischemia and providing more operation time for thrombus aspiration.
2. According to the double-channel thrombus suction catheter, due to the design of the special-shaped spring, the rotary catheter body can be used for accommodating and stretching the special-shaped spring, thrombus can be extruded and separated after stretching, the stretching hose is supported to form a blood circulation channel, the ischemia condition of tissues is relieved rapidly, and sufficient operation time is provided for thrombus extraction.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is a left side view of the present invention;
fig. 5 is a cross-sectional view of an operating tube of the present invention.
In the figure: 1 a catheter body, 2 a spiral groove, 3 an extension mechanism, 31 a special-shaped spring, 32 an operation pipe fitting, 33 an extension hose, 34 a connecting wire, 35 a connecting rubber, 36 an extension air bag, 37 a sealing air bag, 38 a connecting ring, 4 pipe components, 41 a suction pipe, 42 a gas supply pipe, 43 a liquid supply pipe, 44 a suction port and 5 a blocking block.
Detailed Description
Referring to fig. 1-5, the present invention provides a technical solution: a dual channel thrombi aspiration catheter comprising:
the guide pipe body 1, the inner wall of the guide pipe body 1 is provided with a spiral groove 2 near the outlet;
an extension mechanism 3, wherein the extension mechanism 3 is accommodated in the catheter body 1 and can extend out of the catheter body 1;
the tube assembly 4 is partially attached to the stretching mechanism 3 and is used for sucking thrombus, supplying air to the stretching mechanism 3 and injecting liquid medicine, and is inserted into the catheter body 1 and extends out of the other opening for operation;
the stretching mechanism 3 includes:
the special-shaped spring 31 is inserted into the spiral groove 2 so that the special-shaped spring 31 can be rotationally pushed along the spiral groove 2;
the special-shaped spring 31 comprises a same diameter section and a conical section, the conical end of the special-shaped spring 31 is connected with the catheter body 1 after the special-shaped spring 31 is stretched, the stretching hose 33 is positioned in the same diameter section, the special-shaped spring 31 can be compressed into the spiral groove 2 for storage by changing the diameter of the special-shaped spring through rotation, and meanwhile the stretching hose 33 is compressed for storage.
The operation pipe fitting 32, the operation pipe fitting 32 is located in the catheter body 1, one end of the operation pipe fitting 32 is fixedly connected with one end of the special-shaped spring 31 located in the catheter body 1 through the connecting ring 38, and the other end extends out of the other end of the catheter body 1 for operation, and is used for operating the special-shaped spring 31 to realize storage and release;
the extension hose 33, the extension hose 33 is positioned on the inner side of the special-shaped spring 31, and the pipe assembly 4 is arranged on the outer wall of the extension hose 33;
the connecting wires 34, several sets of connecting wires 34 are arranged between the extension hose 33 and the profile spring 31 for connection of the two.
The stretching mechanism 3 further comprises a connecting rubber 35, an expanding air bag 36 and a sealing air bag 37, wherein one end of the stretching hose 33 far away from the catheter body 1 is fixedly connected with the outer wall of the expanding air bag 36 through the connecting rubber 35, the sealing air bag 37 is arranged at one end of the outer wall of the stretching hose 33 close to the catheter body 1, the expanding air bag 36 and the sealing air bag 37 are communicated with the outlet of the air supply pipe 42, so that the airtight space blood supply bolt suction can be established, and the stretching hose 33 can be assisted in stretching to establish a blood circulation channel.
The inner wall of the expansion air bag 36 is provided with a plurality of blocks 5, and the expansion air bag 36 contracts after being emptied of air, so that the blocks 5 are attached to provide sealing.
The connecting wires 34 are not less than three groups, and the connecting wires 34 of each group are annularly arranged by taking the central axis of the extension hose 33 as a reference, and the suction pipes 41 and the connecting wires 34 of each group are staggered.
The tube assembly 4 comprises a suction tube 41, an air supply tube 42 and a liquid supply tube 43, wherein a plurality of suction tubes 41 are adhered to the outer wall of the expansion hose 33, a suction port 44 is formed on one side, far away from the expansion hose 33, of the suction tube 41, and the air supply tube 42 and the liquid supply tube 43 are adhered to the outer wall of the expansion hose 33 and are provided with openings.
Suction port 44 is located between expansion bladder 36 and sealing bladder 37.
The side of each blocking piece 5, which is far away from the catheter body 1, protrudes outwards to help to pass through thrombus, and the middle part of each blocking piece 5 is provided with a hole for a guide wire to pass through after being attached.
In fig. 1 to 4, the expandable bladder 36 is in an uninflated state to show the shape of the block 5, and has the same diameter as the sealing bladder 37 after inflation.
The effect of this technical scheme is realized mainly based on the innovative design of pipe, should work based on suction system in actual operation, still should have handheld portion at least, and operable pipe body 1 rotates in order to release the extending mechanism, still should include the pump body that provides negative pressure for suction tube 41, the pump body etc. of the thrombolytic liquid of input to liquid supply tube 43, above all belong to the known technique, to the person skilled in the art, accomplish the implementation of technical scheme based on this specification disclosure and need not creative work, do not make the description.
When the double-channel thrombus aspiration catheter works, the catheter body 1 is guided by a guide wire to reach the thrombus position and passes through the thrombus, a protrusion formed by the blocking block 5 is assisted to pass through the thrombus, after the thrombus wraps the head of the catheter body 1, the catheter body 1 is operated to rotate relative to the operation pipe fitting 32, the special-shaped spring 31 extends out of the catheter body 1, the extending special-shaped spring 31 extends and has an enlarged diameter, simultaneously, the air supply pipe 42 supplies air to the expanding air bag 36 firstly to be inflated and attached to the inner wall of a blood vessel until the position of the sealing air bag 37 is reached, the catheter body can be stopped from rotating after the expansion support is completed by separating from the catheter body 1, at the moment, the extending hose 33 is pulled by the connecting wire 34 to be unfolded, blood flows through the extending hose 33, and the blood channel is established;
the expansion air bag 36 and the sealing air bag 37 form a sealing space with the blood vessel after being expanded, thrombus is positioned between the expansion air bag 36 and the sealing air bag and is extruded and divided by the special-shaped spring 31, thrombolytic medicine is input to the thrombus through the liquid supply pipe 43, the thrombus is extracted by the suction pipe 41 after thrombolysis is completed, and due to the sealing space, the expansion hose 33 is further expanded under negative pressure in the extraction process, meanwhile, the sealing space where the thrombus is positioned is extruded until the expansion hose 33 is attached to the inner wall of the blood vessel, based on the spiral structure of the special-shaped spring 31, the thrombus can automatically walk away, the sufficient extraction of the thrombus is ensured, after the thrombus extraction is completed, the gas in the expansion air bag 36 and the sealing air bag 37 is released, the catheter body 1 is rotated relative to the operation pipe 32, the special-shaped spring 31 is compressed to enter the spiral groove 2 to complete the storage of the expansion mechanism 3, and then the catheter body 1 is extracted to complete interventional operation.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention, and therefore the invention is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A two-channel thrombotic aspiration catheter, comprising:
the inner wall of the catheter body is provided with a spiral groove near the outlet;
an extension mechanism received within and extendable from the catheter body and having an enlarged diameter;
the tube assembly is partially attached to the stretching mechanism and is used for sucking thrombus, supplying air for the stretching mechanism and injecting liquid medicine, and is inserted into the catheter body and extends out of the other opening for operation;
the stretching mechanism comprises;
the special-shaped spring is inserted into the spiral groove to enable the special-shaped spring to rotationally push along the spiral groove;
the operation pipe fitting is positioned in the catheter body, one end of the operation pipe fitting is fixedly connected with one end of the special-shaped spring positioned in the catheter body, and the other end of the operation pipe fitting extends out from the other end of the catheter body for operation and is used for operating the special-shaped spring to realize storage and release;
the extension hose is positioned on the inner side of the special-shaped spring, and the pipe assembly is arranged on the outer wall of the extension hose;
the connecting wires are arranged between the extension hose and the special-shaped spring for connecting the extension hose and the special-shaped spring;
the pipe assembly comprises a plurality of suction pipes, an air supply pipe and a liquid supply pipe, wherein the suction pipes are adhered to the outer wall of the extension hose, a suction port is formed in one side, far away from the extension hose, of each suction pipe, and the air supply pipe and the liquid supply pipe are adhered to the outer wall of the extension hose and are provided with openings;
the expansion mechanism further comprises a connecting rubber, an expansion air bag and a sealing air bag, one end of the expansion hose, far away from the catheter body, is fixedly connected with the outer wall of the expansion air bag through the connecting rubber, the sealing air bag is arranged at one end, close to the catheter body, of the outer wall of the expansion hose, the expansion air bag and the sealing air bag are communicated with the outlet of the air supply pipe, the expansion air bag is inflated and attached to the inner wall of a blood vessel by the air supply pipe for air supply, the rotation of the catheter body can be stopped after the expansion support is completed until the position of the sealing air bag is separated from the catheter body, the expansion hose is pulled by the connecting wire to be unfolded, blood flows through the expansion hose, and a blood channel is established, and a sealing space is formed between the expansion air bag and the sealing air bag for thrombus suction.
2. A dual channel thrombi aspiration catheter according to claim 1 and wherein: the inner wall of extension gasbag is provided with a plurality of blocks, and each block laminating provides sealedly after the evacuation of extension gasbag.
3. A dual channel thrombi aspiration catheter in accordance with claim 2, wherein: the side of each block joint opening, which is far away from the catheter body, protrudes outwards to be helpful for passing through thrombus, and the middle part of each block joint is provided with a hole for a guide wire to pass through.
4. A dual channel thrombi aspiration catheter according to claim 1 and wherein: the connecting wires are not less than three groups, the connecting wires of each group are annularly arranged by taking the central axis of the stretching hose as a reference, and the suction pipes and the connecting wires of each group are staggered.
5. A dual channel thrombi aspiration catheter according to claim 1 and wherein: the suction port is located between the expanding balloon and the sealing balloon.
6. A dual channel thrombi aspiration catheter according to claim 1 and wherein: the special-shaped spring comprises a same diameter section and a conical section, the conical end of the special-shaped spring is connected with the catheter body after the special-shaped spring is stretched, the stretching hose is positioned in the same diameter section, the diameter of the special-shaped spring can be changed by rotating the special-shaped spring, the special-shaped spring is compressed into the spiral groove to be stored, and meanwhile the stretching hose is also compressed to be stored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311356470.7A CN117084753B (en) | 2023-10-19 | 2023-10-19 | Double-channel thrombus aspiration catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311356470.7A CN117084753B (en) | 2023-10-19 | 2023-10-19 | Double-channel thrombus aspiration catheter |
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| Publication Number | Publication Date |
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| CN117084753A CN117084753A (en) | 2023-11-21 |
| CN117084753B true CN117084753B (en) | 2024-01-05 |
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| CN202311356470.7A Active CN117084753B (en) | 2023-10-19 | 2023-10-19 | Double-channel thrombus aspiration catheter |
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| CN118415746B (en) * | 2024-07-02 | 2024-09-24 | 长沙金维医疗科技有限公司 | Renal artery sympathetic nerve ablation catheter |
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| CN116439782A (en) * | 2022-11-28 | 2023-07-18 | 上海腾复医疗科技有限公司 | Thrombus aspiration device |
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