CN114504718A - Transcranial radial artery intracranial catheter - Google Patents
Transcranial radial artery intracranial catheter Download PDFInfo
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- CN114504718A CN114504718A CN202210134102.7A CN202210134102A CN114504718A CN 114504718 A CN114504718 A CN 114504718A CN 202210134102 A CN202210134102 A CN 202210134102A CN 114504718 A CN114504718 A CN 114504718A
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- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
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- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
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Abstract
The invention provides a transcranial radial artery intracranial catheter, which comprises a catheter seat, a catheter body and a conical buffer tube, wherein the catheter seat is connected to the catheter body, the conical buffer tube is sleeved outside the tapered parts of the catheter body and the catheter seat, the catheter body comprises a straight-line section and a bent part of the catheter body which are connected smoothly in sequence, and the middle layer of the near end of the bent part is a metal braided layer or a laser-engraved reinforcing layer or an industrialized liquid crystal polymer braided layer. The transcatheter intracranial catheter has the advantages that: can be suitable for connecting aortic arches with different shapes.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a trans-radial artery intracranial catheter.
Background
Intravascular devices such as catheters are often used in the medical field. Catheters are typically inserted into a patient's femoral artery, radial artery, carotid artery, or jugular vein and are passed through a patient's blood vessel to reach the heart, brain, or other target anatomy. Typically, a guidewire is first guided to the target anatomy, and one or more catheters are then passed over the guidewire and guided to the target anatomy. Once in place, the catheter may be used to deliver drugs, stents, embolic devices, radiopaque agents, or other devices or substances for treating a patient in a desired manner. In other cases, the catheter and guidewire are delivered simultaneously toward the target anatomy while the guidewire is within the catheter, and then the guidewire is further delivered into the anatomy by translation within the catheter.
The transfemoral approach has been the classic approach to cerebrovascular angiography. But femoral artery access hemostasis is not easy, and puncture related complications are relatively more. Since Campeau first reported coronary angiography via radial access in 1989, radial access also began to be gradually adopted for cerebrovascular angiography. From the perspective of patients, the cerebral angiography performed by the radial artery access has the advantages of few complications, quick postoperative recovery, no need of long-time bedridden observation, no exposure of privacy of patients, less hospitalization time and cost and the like. The main disadvantages are the susceptibility to vasospasm and the inapplicability of patients negative to the Allen test. From the perspective of an operator, when the whole cerebral angiography is performed through a radial artery approach, the intubation process is more complicated, the catheter is more difficult to operate, the success rate of selective intubation of the secondary vessels on the aortic arch is lower, and the X-ray irradiation quantity of most interventional doctors is obviously larger. The advantages are that the treatment frequency of the complications, the complexity of the complications and the nursing amount are obviously reduced. Therefore, considering which approach to select needs to weigh advantages and disadvantages of the two approaches, balance advantages and disadvantages, and select a more appropriate surgical approach by combining with clinical practical requirements.
The invention aims to provide a trans-radial intracranial catheter which can be suitable for the aorta (different shapes of aortic arches) connected with different types of secondary blood vessels, is easier to control and is more convenient to select.
Disclosure of Invention
The invention aims to provide a transradial intracranial catheter, which aims to solve the problems in the prior art and achieves the aim through the following technical scheme.
One embodiment of the invention provides a transcranial catheter, wherein the catheter base, a catheter body and a conical buffer tube are connected to the catheter body, the conical buffer tube is sleeved outside a conical portion of the catheter body and the catheter base, the catheter body comprises a linear segment of the catheter body and a bending portion which are connected smoothly in sequence, the near end of the bending portion comprises an inner layer, an intermediate layer and an outer layer, and the intermediate layer at the near end of the bending portion is a metal braided layer or a laser-engraved reinforced layer or an industrial liquid crystal polymer braided layer.
One embodiment of the present invention provides a transradial intracranial catheter, wherein the bending portion includes a first bending section, a first straight section L1, a second straight section L2, a third straight section L3, a second bending section, a fourth straight section L4, a third bending section, and a fifth straight section L5, which are smoothly connected in sequence, wherein the pipe body straight section L6, the first bending section, and the first straight section L1 of the pipe body include an inner layer, an intermediate layer, and an outer layer, the second straight section L2, the third straight section L3, the second bending section, the fourth straight section L4, the third bending section, and the fifth straight section L5 of the pipe body include an inner layer and an outer layer, and wherein the intermediate layer of the pipe body straight section L6, the first bending section, and the first straight section L1 of the pipe body is a braided layer, a laser engraved braided layer, or an industrial liquid crystal polymer braided layer.
According to the transcranial radial catheter provided by the above-mentioned one embodiment of the invention, the third straight line section L3 is tangent to the second curved section, the connection point of the third straight line section L3 and the second curved section is the tangent point of the third straight line section L3 and the second curved section, the fourth straight line section L4 is tangent to the second curved section, the connection point of the fourth straight line section L4 and the second curved section is the tangent point of the fourth straight line section L4 and the second curved section, and the relation between the opening width L7 of the second curved section and the radius R2 of the second curved section is as follows:
where α 2 is the arc angle of the second curved segment.
According to the above one embodiment of the present invention, there is provided a transradial intracranial catheter wherein the inner layer of the tubular body is made of PTFE.
According to the present invention, there is provided a transradial intracranial catheter as described in the above one embodiment, wherein the outer layer of the tubular body is made of polyether block polyamide containing 20% to 50% of barium sulfate.
According to the transcranial radial artery intracranial catheter provided by the embodiment of the invention, the hardness range of the outer layer material of the straight section L6, the first bending section and the first straight section L1 of the tube body is as follows: 57HD to 70HD
According to the transcranial radial artery intracranial catheter provided by the embodiment of the invention, the hardness range of the outer layer material of the second straight section L2, the third straight section L3, the second curved section, the fourth straight section L4 and the third curved section of the tube body is as follows: 50HD to 57 HD.
There is provided a transradial intracranial catheter according to the above one embodiment of the invention, wherein the hardness of the outer layer material of the fifth straight section L5 is in the range of: 21HD to 40 HD.
There is provided in accordance with the above-mentioned one embodiment of the present invention a transcranial catheter, wherein the radius R1 of the first curved section ranges from: 45-55 mm, the range of central angle alpha 1 is as follows: 18 to 25 degrees.
There is provided in accordance with the above-mentioned one embodiment of the present invention a transcranial catheter, wherein the first linear section L1 ranges from: 20-30 mm, the range of the second straight line section L2 is: 15-25 mm, and the range of the third straight line section L3 is as follows: 5-15 mm.
There is provided in accordance with the above-mentioned one embodiment of the present invention a transradial intracranial catheter wherein the radius R2 of the second curved section ranges from: 5-15 mm, the range of central angle alpha 2 is: 130 to 170 degrees.
There is provided in accordance with the above-mentioned one embodiment of the present invention a transradial intracranial catheter wherein the fourth linear section L4 ranges from: 15-40 mm, and the range of the fifth straight line section L5 is as follows: 2-5 mm.
According to the transcranial radial artery catheter provided by the embodiment of the invention, the radius R3 of the third bending section ranges from 18 mm to 25mm, and the central angle alpha 3 ranges from 30 degrees to 60 degrees.
According to the transcranial radial artery intracranial catheter provided by the invention, the total length of the catheter tube ranges from 90 cm to 140 cm.
The advantages of a trans-radial intracranial catheter according to an embodiment of the invention are: since the straight line section L6 to the fifth straight line section L5 are made of three outer layer materials with different hardness, the aortic arch catheter can adapt to the aorta (aortic arches with different shapes) connected with different types of secondary blood vessels.
A transcatheter intracranial catheter according to an embodiment of the invention has the further advantage that: the catheter is easier to control and more convenient to select the catheter.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings.
Fig. 1 shows a schematic view of a transcatheter intracranial catheter, according to one embodiment of the invention.
Fig. 2 shows a detailed schematic view of portions of a trans-radial intracranial catheter, according to one embodiment of the invention.
FIG. 3 shows an enlarged view of a curved portion of a transcatheter intracranial catheter, according to one embodiment of the invention.
FIG. 4 shows a close-up view of a radial intracranial catheter bend, such as the region K in FIG. 2, according to one embodiment of the invention.
FIG. 5 is a schematic representation of a trans-radial intracranial catheter being inserted through a sheath into a desired location in a normal aorta, in accordance with one embodiment of the invention.
FIG. 6 shows a schematic representation of a trans-radial intracranial catheter being inserted trans-sheath into another desired location of a normal aorta, in accordance with one embodiment of the invention.
FIG. 7 is a schematic diagram illustrating the insertion of a transradial intracranial catheter into a desired location of a culprit aorta via a sheath, according to one embodiment of the present invention.
FIG. 8 shows a schematic representation of a trans-radial intracranial catheter being inserted through a sheath into the desired location of another extra-aortic arch, in accordance with one embodiment of the invention.
FIG. 9 shows an enlarged partial view of a second curved segment of a transcatheter intracranial catheter, according to one embodiment of the invention.
Reference numbers and part names: 1-tube seat, 2-tube body, 3-tapered buffer tube, 20-bend section, 22-first bend section, 23-second bend section, 24-third bend section, R1-first bend radius, R2-second bend radius, R3-third bend radius, L1-first straight section, L2-second straight section, L3-third straight section, L4-fourth straight section, L5-fifth straight section, L6-straight section of tube body, L7-opening width of second bend section.
Detailed Description
The following description of the embodiments of the present application with reference to the drawings and examples will make it easy for those skilled in the art to understand the technical problems and technical solutions solved by the present application and the technical effects thereof through the contents described in the present specification. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. In addition, for convenience of description, only portions related to the related invention are shown in the drawings.
It should be noted that the structures, proportions, sizes, and other elements shown in the drawings are only used for understanding and reading the contents of the specification, and are not used for limiting the conditions under which the present application can be implemented, so they do not have the technical significance, and any structural modifications, changes in proportion, or adjustments of sizes, which do not affect the efficacy and achievement of the purposes of the present application, shall still fall within the scope of the technical content disclosed in the present application.
Reference to words such as "first," "second," "the," and the like do not denote a limitation of quantity, and may refer to the singular or the plural. The present application is directed to the terms "comprising," "including," "having," and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Reference to "connected," "coupled," and the like in this application is not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
Fig. 1 shows a schematic view of a transcatheter intracranial catheter, according to one embodiment of the invention. Fig. 2 shows a detailed schematic view of portions of a trans-radial intracranial catheter, according to one embodiment of the invention. FIG. 3 shows an enlarged view of a curved portion of a transcatheter intracranial catheter, according to one embodiment of the invention. FIG. 4 shows a close-up view of a curved portion of a transcatheter intracranial catheter, according to one embodiment of the invention. As shown in fig. 1-4, the transcranial catheter comprises a tube seat 1, a tube body 2 and a tapered buffer tube 3, wherein the tube seat 1 is connected to the tube body 2, the tapered buffer tube 3 is sleeved outside the tapered parts of the tube body 2 and the tube seat 1, the tube body 2 comprises a tube body straight line segment L6 and a bending part 20 which are smoothly connected in sequence, the near end of the bending part comprises an inner layer, an intermediate layer and an outer layer, and the intermediate layer at the near end of the bending part is a braided layer or a laser engraved reinforced layer or an industrial liquid crystal polymer braided layer.
According to the transcranial radial artery intracranial catheter of one embodiment of the invention, the bending part 20 comprises a first bending section 22, a first straight section L1, a second straight section L2, a third straight section L3, a second bending section 23, a fourth straight section L4, a third bending section 24 and a fifth straight section L5 which are smoothly connected in sequence, a pipe body straight section L6, a first bending section 22, a first straight section L1 and a second straight section L2 of the pipe body 2 comprise an inner layer, an intermediate layer and an outer layer, a pipe body straight section L6, a first bending section 22 and an intermediate layer of the first straight section L1 of the pipe body 2 are metal woven intermediate layers or laser reinforced layers or industrial liquid crystal polymer braided layers, a second straight section L2, a third straight section L3, a second bending section L23, a fourth straight section L4, a third bending section 24 and a fifth straight section L5 of the pipe body 2 comprise an inner layer and an outer layer, the metal-free braided layer (intermediate layer) has an inner layer made of, for example, PTFE (polytetrafluoroethylene), and an outer layer made of a biocompatible polymer material containing 20 to 50% of barium sulfate, for example, polyether block polyamide, and has a whole body developability.
According to the transcranial radial catheter provided by the above-mentioned one embodiment of the invention, the third straight line section L3 is tangent to the second curved section, the connection point of the third straight line section L3 and the second curved section is the tangent point of the third straight line section L3 and the second curved section, the fourth straight line section L4 is tangent to the second curved section, the connection point of the fourth straight line section L4 and the second curved section is the tangent point of the fourth straight line section L4 and the second curved section, and the relation between the opening width L7 of the second curved section and the radius R2 of the second curved section is as follows:
the relationship of the radius R2 of the curved section is:
where α 2 is the arc angle of the second curved segment. The opening width L7 is the distance between the connection point of the third straight section L3 and the second curved section and the connection point of the fourth straight section L4 and the second curved section.
The transcatheter intracranial catheter according to one embodiment of the present invention, wherein the straight section L6, the first bending section 22 and the first straight section L1 of the pipe body 2 have the hardness range of the outer layer material: 57HD to 70 HD.
The transcranial radial artery catheter according to the embodiment of the invention is characterized in that the hardness ranges of the outer layer materials of the second straight section L2, the third straight section L3, the second bending section 23, the fourth straight section L4 and the third bending section 24 are as follows: 50HD to 57 HD.
The transcranial radial artery intracranial catheter according to one embodiment of the invention, wherein the hardness range of the outer layer material of the fifth straight section L5 is: 21HD to 40 HD.
A transcranial catheter according to one embodiment of the invention, wherein the radius R1 of first curved section 22 ranges from: 45-55 mm, the range of central angle alpha 1 is as follows: 18 to 25 degrees.
A transcranial catheter according to one embodiment of the invention, wherein the first linear section L1 ranges from: 20-30 mm, the range of the second straight line section L2 is: 15-25 mm, and the range of the third straight line section L3 is as follows: 5-15 mm.
A transcranial catheter according to an embodiment of the invention, wherein the radius R2 of second curved section 23 is in the range of: 5-15 mm, the range of central angle alpha 2 is: 130 to 170 degrees.
A transcranial radial catheter according to an embodiment of the invention, wherein the fourth straight line segment L4 ranges from: 15-40 mm, and the range of the fifth straight line section L5 is as follows: 2-5 mm.
The transcranial radial artery intracranial catheter according to one embodiment of the invention, wherein the radius R3 of the third curved section 24 is in the range of 18-25 mm, and the central angle α 3 is in the range of 30-60 °.
According to one embodiment of the invention, the total length of the catheter tube ranges from 90 cm to 140 cm.
According to the transcranial radial artery intracranial catheter of the embodiment of the invention, the first bending section 22 is provided with the reinforcing layer which is suitable for the right subclavian artery and the brachiocephalic trunk, and when the catheter is conveyed in the catheter, the bending part is not easy to deform, so that the head end of the catheter is displaced. The first bending section 22 can be made of shape memory alloy and is preheated and shaped in advance.
The transcranial radial artery catheter according to one embodiment of the invention, wherein the second bending section 23 is capable of bending reversely at the aortic arch, so that the tip of the catheter is directed toward the intracranial blood vessel.
A transcranial catheter according to an embodiment of the invention, wherein the third curved section 24 is curved to facilitate entry of the catheter tip into a target vessel.
FIG. 5 is a schematic representation of a trans-radial intracranial catheter being inserted through a sheath into a desired location in a normal aorta, in accordance with one embodiment of the invention. FIG. 6 shows a schematic representation of a trans-radial intracranial catheter being inserted trans-sheath into another desired location of a normal aorta, in accordance with one embodiment of the invention. FIG. 7 is a schematic diagram illustrating the sheath insertion of a transradial intracranial catheter into a desired location of a cul-de-sac shaped aorta, according to one embodiment of the present invention. FIG. 8 shows a schematic representation of a trans-radial intracranial catheter being inserted through a sheath into the desired location of another extra-aortic arch, in accordance with one embodiment of the invention. As shown in fig. 5-8, a trans-radial intracranial catheter in accordance with an embodiment of the invention can accommodate not only conventional aortic configurations to a desired location, but also a malocclusion aorta to a desired location.
The trans-radial intracranial catheter according to an embodiment of the invention has the advantages that: since the straight line section L6 to the fifth straight line section L5 are made of three outer layer materials with different hardness, the aortic arch catheter can adapt to the aorta (aortic arches with different shapes) connected with different types of secondary blood vessels.
A transcatheter intracranial catheter according to an embodiment of the invention has the further advantage that: the catheter is easier to control and more convenient to select the catheter.
While the present application has been described and illustrated with reference to particular embodiments thereof, such description and illustration are not intended to limit the present application. It will be clearly understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof within the embodiments without departing from the true spirit and scope of the present application as defined by the appended claims. The illustrations may not necessarily be drawn to scale. There may be a difference between the technical reproduction in the present application and the actual device due to variables in the manufacturing process and the like. There may be other embodiments of the application that are not specifically illustrated. The specification and drawings are to be regarded in an illustrative rather than a restrictive sense. Modifications may be made to adapt a particular situation, material, composition of matter, method, or process to the objective, spirit and scope of the present application. All such modifications are intended to be within the scope of the claims appended hereto. Although the methods disclosed herein have been described with reference to particular operations performed in a particular order, it should be understood that these operations may be combined, sub-divided, or reordered to form equivalent methods without departing from the teachings of the present application. Accordingly, unless specifically indicated herein, the order and grouping of the operations is not a limitation of the present application.
Claims (14)
1. The transcranial catheter is characterized in that a catheter seat, a catheter body and a conical buffer tube are connected to the catheter body, the conical buffer tube is sleeved outside a conical portion of the catheter body and the catheter seat, the catheter body comprises a catheter body straight line section and a bending portion which are connected smoothly in sequence, the near end of the bending portion comprises an inner layer, an intermediate layer and an outer layer, and the intermediate layer of the near end of the bending portion is a metal braided layer or a laser-engraved reinforcing layer or an industrialized liquid crystal polymer braided layer.
2. The transradial intracranial catheter as recited in claim 1, wherein the curved portion comprises a first curved section, a first straight section L1, a second straight section L2, a third straight section L3, a second curved section, a fourth straight section L4, a third curved section, and a fifth straight section L5, which are smoothly connected in sequence, wherein the straight section L6, the first curved section, and the first straight section L1 of the tube comprise an inner layer, an intermediate layer, and an outer layer, and the straight sections L2, the third straight section L3, the second curved section, the fourth straight section L4, the third curved section, and the fifth straight section L5 of the tube comprise an inner layer and an outer layer, wherein the intermediate layer of the straight section L6, the first curved section, and the first straight section L1 of the tube is a braided layer or a laser-engraved or industrial liquid crystal polymer reinforced layer.
3. The transradial intracranial catheter as recited in claim 2, wherein the third straight section L3 is tangent to the second curved section, the connection point of the third straight section L3 to the second curved section is the tangent point of the third straight section L3 to the second curved section, the fourth straight section L4 is tangent to the second curved section, the connection point of the fourth straight section L4 to the second curved section is the tangent point of the fourth straight section L4 to the second curved section, and the opening width L7 of the second curved section is related to the radius R2 of the second curved section by:
where α 2 is the arc angle of the second curved segment.
4. The transcranial radial artery intracranial catheter as recited in claim 1, wherein the inner layer of the tubular body is made of PTFE.
5. The transcranial radial artery intracranial catheter as recited in claim 1, wherein the outer layer of the tubular body is made of polyether block polyamide containing 20% to 50% barium sulfate.
6. The transcranial radial artery intracranial catheter as recited in claim 2, wherein the straight section L6, the first curved section and the first straight section L1 of the tube body have outer layer materials with hardness ranging from: 57HD to 70 HD.
7. The transcranial radial intracranial catheter as recited in claim 2, wherein the second straight section L2, the third straight section L3, the second curved section, the fourth straight section L4, and the third curved section of the tube body have outer layer materials with hardness ranging from: 50HD to 57 HD.
8. The transcranial radial intracranial catheter as recited in claim 2, wherein the hardness of the outer layer material of the fifth straight section L5 is in the range of: 21HD to 40 HD.
9. The transcranial radial catheter of claim 2, wherein the radius R1 of the first curved segment ranges from: 45-55 mm, the range of central angle alpha 1 is as follows: 18 to 25 degrees.
10. The transcranial radial intracranial catheter as recited in claim 2, wherein the first linear section L1 ranges from: 20-30 mm, the range of the second straight line section L2 is: 15-25 mm, and the range of the third straight line section L3 is as follows: 5-15 mm.
11. The transcranial radial intracranial catheter as recited in claim 2, wherein the radius R2 of the second curved section ranges from: 5-15 mm, the range of central angle alpha 2 is: 130 to 170 degrees.
12. The transcranial radial intracranial catheter as recited in claim 2, wherein the fourth linear section L4 ranges from: 15-40 mm, and the range of the fifth straight line section L5 is as follows: 2-5 mm.
13. The transcranial radial artery intracranial catheter as recited in claim 2, wherein the radius R3 of the third curved section ranges from 18 to 25mm, and the central angle α 3 ranges from 30 ° to 60 °.
14. The transcranial radial artery intracranial catheter as recited in claim 1, wherein the total length of the catheter tube is in the range of 90-140 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210134102.7A CN114504718A (en) | 2022-02-14 | 2022-02-14 | Transcranial radial artery intracranial catheter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210134102.7A CN114504718A (en) | 2022-02-14 | 2022-02-14 | Transcranial radial artery intracranial catheter |
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| CN114504718A true CN114504718A (en) | 2022-05-17 |
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| CN202210134102.7A Pending CN114504718A (en) | 2022-02-14 | 2022-02-14 | Transcranial radial artery intracranial catheter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115624680A (en) * | 2022-12-07 | 2023-01-20 | 艾柯医疗器械(北京)股份有限公司 | System for establishing transcatheter intracranial catheter and transcatheter radial artery access |
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|---|---|---|---|---|
| US6824553B1 (en) * | 1995-04-28 | 2004-11-30 | Target Therapeutics, Inc. | High performance braided catheter |
| US20090030400A1 (en) * | 2007-07-25 | 2009-01-29 | Arani Bose | System and method for intracranial access |
| WO2020072895A1 (en) * | 2018-10-04 | 2020-04-09 | The University Of Chicago | Lima crossover integrated catheter system |
| CN113069193A (en) * | 2021-04-28 | 2021-07-06 | 复旦大学附属中山医院 | Through radial artery access cerebrovascular intervention thimble assembly |
| CN214807716U (en) * | 2021-04-25 | 2021-11-23 | 广东省人民医院 | Guide catheter for cerebral vascular interventional therapy through right radial artery |
| CN113908403A (en) * | 2021-12-15 | 2022-01-11 | 艾柯医疗器械(北京)有限公司 | Intracranial catheter |
-
2022
- 2022-02-14 CN CN202210134102.7A patent/CN114504718A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6824553B1 (en) * | 1995-04-28 | 2004-11-30 | Target Therapeutics, Inc. | High performance braided catheter |
| US20090030400A1 (en) * | 2007-07-25 | 2009-01-29 | Arani Bose | System and method for intracranial access |
| WO2020072895A1 (en) * | 2018-10-04 | 2020-04-09 | The University Of Chicago | Lima crossover integrated catheter system |
| CN214807716U (en) * | 2021-04-25 | 2021-11-23 | 广东省人民医院 | Guide catheter for cerebral vascular interventional therapy through right radial artery |
| CN113069193A (en) * | 2021-04-28 | 2021-07-06 | 复旦大学附属中山医院 | Through radial artery access cerebrovascular intervention thimble assembly |
| CN113908403A (en) * | 2021-12-15 | 2022-01-11 | 艾柯医疗器械(北京)有限公司 | Intracranial catheter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115624680A (en) * | 2022-12-07 | 2023-01-20 | 艾柯医疗器械(北京)股份有限公司 | System for establishing transcatheter intracranial catheter and transcatheter radial artery access |
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