Intracranial support catheter assembly

Abstract

The application relates to the technical field of intracranial support catheter, in particular to an intracranial support catheter assembly which comprises a flow guide component, a liquid outlet component and a liquid inlet component. The flow guide component comprises a catheter, the inner side of the catheter is provided with a support strip, the outer side of the support strip is provided with a support ring, and the inner side of the support strip is provided with an elastic metal wire. The liquid outlet component comprises an outer tube, one end of the outer tube is provided with an inner tube, the rear side of the inner tube is provided with a fixing plate, and the other end of the outer tube is provided with a first sealing sleeve. The liquid outlet component and the liquid inlet component can be separated from the flow guide component, the length of the flow guide component can be cut according to needs, the flexibility of use is improved, the support strip is separated through the elastic metal wire, the support strength of the flow guide component is reduced, the elastic metal wire is inserted into the inner side of the support strip to support the flow guide component after insertion, the damage to intracranial tissues is reduced without affecting the support strength of the flow guide component.

Description

Technical Field

[0001] This invention relates to the field of intracranial support catheter technology, specifically an intracranial support catheter assembly. Background Technology

[0002] Intracranial support catheters are suitable for interventional procedures in ischemic and hemorrhagic neurovascular diseases. They employ an end-to-end stainless steel braided and nickel-titanium spiral structure, which optimizes catheter passage capacity while maximizing distal anti-flattening and strengthening arch support, providing stable support for intraoperative procedures.

[0003] Chinese patent discloses an intracranial support catheter (authorization announcement number CN218458150U). This patented technology, through an overall structural design, segments the internal support frame of the catheter. A complete double-helix support frame is used at the support end, while a single-helix support frame is used near the bending end. This results in a larger spacing between the support frames at the catheter end, allowing for more flexible bending. A pull rope is installed on the support frame, connected to the support frame via a collar. Pulling the rope at different positions allows the catheter end to bend in different directions, providing flexible operation and avoiding damage to the blood vessel wall. However, the aforementioned intracranial support catheter assembly is a single, fixed-length structure that cannot be cut to the required length, hindering its flexibility. Furthermore, the consistent support force before and after insertion can easily damage intracranial tissues during insertion, negatively impacting postoperative recovery after interventional surgery. Therefore, those skilled in the art have provided an intracranial support catheter assembly to address the problems mentioned in the background art. Summary of the Invention

[0004] The purpose of this invention is to provide an intracranial support catheter assembly to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intracranial support catheter assembly, comprising a flow guiding component, a fluid outlet component, and a fluid inlet component. The fluid outlet component is located at one end of the flow guiding component, and the fluid inlet component is located at the other end of the flow guiding component. The flow guiding component includes a catheter, with a support strip disposed on the inner side of the catheter and a support ring disposed on the outer side of the support strip. An elastic metal wire is disposed inside the support strip. The fluid outlet component includes an outer tube, with an inner tube disposed at one end of the outer tube. A fixing plate is disposed on the rear side of the inner tube, and a first sealing sleeve is disposed at the other end of the outer tube. A first connector is disposed on the inner side of the first sealing sleeve. The fluid inlet component includes an arc-shaped head, with a second sealing sleeve disposed on one side of the arc-shaped head and a second connector disposed on the inner side of the second sealing sleeve.

[0006] As a further aspect of the present invention: the inner side of the support bar is provided with an internal thread, the outer side of the first joint is provided with a first external thread, the outer side of the second joint is provided with a second external thread, and a sliding hole is provided inside the support bar.

[0007] As a further embodiment of the present invention: a spring is provided at one end of the inner tube, a pressure block is provided on one side of the spring, a limiting plate is provided at one end of the inner tube located inside the outer tube, a sealing ring is provided on one side of the limiting plate, an adhesive layer is provided on the rear side of the fixing plate, and a rotating hole is provided on one side of the outer tube.

[0008] As a further embodiment of the present invention: the first sealing sleeve slides on the outer side of the flow guiding member, and the first connector rotates on the inner side of the support bar.

[0009] As a further embodiment of the present invention: the second sealing sleeve slides on the outer side of the flow guide member, and the second connector rotates on the inner side of the support bar.

[0010] As a further embodiment of the present invention: the elastic metal wire slides at the inner position of the support bar, and one end of the inner tube rotates at the inner position of the outer tube.

[0011] As a further embodiment of the present invention: the arc-shaped head is connected to one end of the flow guiding member through the second connector, the other end of the flow guiding member is connected to one end of the outer tube through the first connector, and the other end of the outer tube is connected to one end of the inner tube.

[0012] As a further embodiment of the present invention: the first external thread rotates to the inner position of the internal thread, the first connector is fixed to the inner position of the support bar through the internal thread and the first external thread, the second external thread rotates to the inner position of the internal thread, the second connector is fixed to the inner position of the support bar through the internal thread and the first external thread, the elastic metal wire is located in the inner position of the sliding hole, and the elastic metal wire slides in the inner position of the support bar through the sliding hole.

[0013] As a further embodiment of the present invention: the inner tube is located inside the rotating hole, the inner tube slides through the rotating hole to the inside of the outer tube, the limiting plate and the sealing ring both slide to the inside of the outer tube, and the sealing ring is fixed to the inside of the outer tube by the limiting plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention provides an intracranial support catheter assembly in which both the outlet and inlet components can be separated from the guide component. The length of the guide component can be cut as needed. After cutting, the outlet and inlet components protect the cut-off point of the guide component, thereby preventing the intracranial support catheter assembly from scratching intracranial nerves and improving the flexibility of use. 2. By separating the support strip with an elastic metal wire, the support force of the guide component is reduced, which improves the safety of the guide component when inserted into the cranium. After insertion, the elastic metal wire is inserted into the support strip to support the guide component. Without affecting the support force of the guide component, damage to intracranial tissues is reduced, which is beneficial to the postoperative recovery of interventional surgery. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an intracranial support catheter assembly; Figure 2 This is a split view of an intracranial support catheter assembly; Figure 3 A perspective view of a flow guide in an intracranial support catheter assembly; Figure 4 A perspective view of a fluid outlet component in an intracranial support catheter assembly; Figure 5 This is a schematic diagram of the fluid inlet component in an intracranial support catheter assembly; Figure 6 An intracranial support catheter assembly Figure 3 A schematic diagram of the structure of part A.

[0016] In the diagram: 1. Flow guiding component; 2. Liquid outlet component; 3. Liquid inlet component; 4. Conduit; 5. Support bar; 6. Support ring; 7. Elastic metal wire; 8. Outer tube; 9. Inner tube; 10. Fixing plate; 11. First sealing sleeve; 12. First connector; 13. Arc-shaped head; 14. Second sealing sleeve; 15. Second connector; 16. Internal thread; 17. First external thread; 18. Second external thread; 19. Sliding hole; 20. Spring; 21. Pressure block; 22. Limiting plate; 23. Sealing ring; 24. Adhesive layer; 25. Rotary hole. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-6In this embodiment of the invention, an intracranial support catheter assembly includes a flow guiding component 1, a fluid outlet component 2, and a fluid inlet component 3. The fluid outlet component 2 is located at one end of the flow guiding component 1, and the fluid inlet component 3 is located at the other end of the flow guiding component 1. The flow guiding component 1 includes a catheter 4, with a support strip 5 disposed on the inner side of the catheter 4 and a support ring 6 disposed on the outer side of the support strip 5. An elastic metal wire 7 is disposed inside the support strip 5. The fluid outlet component 2 includes an outer tube 8, with an inner tube 9 disposed at one end of the outer tube 8, and a [missing information - likely a device or component] disposed on the rear side of the inner tube 9. The fixed plate 10 and the outer tube 8 are provided with a first sealing sleeve 11 at one end. A first connector 12 is provided on the inner side of the first sealing sleeve 11. The liquid inlet component 3 includes an arc-shaped head 13. A second sealing sleeve 14 is provided on one side of the arc-shaped head 13. A second connector 15 is provided on the inner side of the second sealing sleeve 14. The first sealing sleeve 11 slides on the outer side of the flow guide component 1, the first connector 12 rotates on the inner side of the support bar 5, the second sealing sleeve 14 slides on the outer side of the flow guide component 1, and the second connector 15 rotates on the inner side of the support bar 5. At the inner side of the support bar 5, the elastic metal wire 7 slides within the support bar 5. One end of the inner tube 9 rotates to the inner position of the outer tube 8. The arc-shaped head 13 is connected to one end of the flow guide member 1 through the second connector 15. The other end of the flow guide member 1 is connected to one end of the outer tube 8 through the first connector 12. The other end of the outer tube 8 is connected to one end of the inner tube 9. First, the flow guide member 1 is cut to the required length. The cross-section of the flow guide member 1 is cleaned and disinfected. At the same time, the liquid outlet member 2 and the liquid inlet member 3 are cleaned. Disinfect, remove the elastic metal wire 7 from inside the support strip 5, fix the second connector 15 to the inside of the support strip 5, and clip the second sealing sleeve 14 to the outside of the catheter 4. Insert the guide member 1 into the intracranial tissue through the inlet member 3. Then, slide the elastic metal wire 7 into the inside of the support strip 5 to support the guide member 1. Fix the first connector 12 to the inside of the support strip 5, clip the first sealing sleeve 11 to the outside of the catheter 4, rotate the inner tube 9 inside the outer tube 8, adjust the angle of the fixing plate 10, and fix the fixing plate 10 to the affected area.

[0019] exist Figure 2 , 3In sections 4, 5, and 6: the inner side of the support bar 5 is provided with an internal thread 16, the outer side of the first connector 12 is provided with a first external thread 17, and the outer side of the second connector 15 is provided with a second external thread 18. A sliding hole 19 is opened inside the support bar 5. The first external thread 17 rotates to the inner position of the internal thread 16. The first connector 12 is fixed to the inner position of the support bar 5 via the internal thread 16 and the first external thread 17. The second external thread 18 rotates to the inner position of the internal thread 16. The second connector 15 is fixed to the inner position of the support bar 5 via the internal thread 16 and the first external thread 17. The elastic metal wire 7 is located in the sliding hole 19. At the internal position, the elastic metal wire 7 slides through the sliding hole 19 to the internal position of the support bar 5. The elastic metal wire 7 is pulled out from the sliding hole 19. The second external thread 18 rotates inside the internal thread 16 to fix the second connector 15 to the inside of the support bar 5. The second sealing sleeve 14 is snapped onto the outside of the catheter 4. The flow guide 1 is inserted into the intracranial tissue through the liquid inlet component 3. Then, the elastic metal wire 7 slides through the sliding hole 19 to the inside of the support bar 5 to support the flow guide 1. The first external thread 17 rotates into the inside of the internal thread 16 to fix the first connector 12 to the inside of the support bar 5. The first sealing sleeve 11 is snapped onto the outside of the catheter 4.

[0020] exist Figure 4 In the middle section: A spring 20 is installed at one end of the inner tube 8, and a pressure block 21 is installed on one side of the spring 20. A limit plate 22 is installed at one end of the inner tube 9 inside the outer tube 8, and a sealing ring 23 is installed on one side of the limit plate 22. An adhesive layer 24 is installed on the rear side of the fixing plate 10. A rotating hole 25 is opened on one side of the outer tube 8, and the inner tube 9 is located inside the rotating hole 25. The inner tube 9 slides inside the outer tube 8 through the rotating hole 25. The limit plate 22 and the sealing ring 23 both slide inside the outer tube 8. The sealing ring 23 is fixed to the inner side of the outer tube 8 through the limit plate 22. The inner tube 9 rotates inside the outer tube 8 through the rotating hole 25 to adjust the angle of the fixing plate 10. The fixing plate 10 is fixed to the affected area through the adhesive layer 24. The spring 20 rebounds and pushes the pressure block 21. The pressure block 21 pushes the limit plate 22. The limit plate 22 seals the connection between the outer tube 8 and the inner tube 9 through the sealing ring 23.

[0021] The working principle of this invention is as follows: First, the guide member 1 is cut to the required length, and the cross-section of the guide member 1 is cleaned and disinfected. At the same time, the liquid outlet member 2 and the liquid inlet member 3 are disinfected. The elastic metal wire 7 inside the sliding hole 19 is pulled out. The second external thread 18 rotates inside the internal thread 16, and the second connector 15 is fixed to the inside of the support bar 5. The second sealing sleeve 14 is snapped onto the outside of the catheter 4. The guide member 1 is inserted into the intracranial tissue through the liquid inlet member 3. Then, the elastic metal wire 7 is slid through the sliding hole 19 to... The inside of the support bar 5 supports the flow guide 1. The first external thread 17 is turned into the inside of the internal thread 16 to fix the first connector 12 to the inside of the support bar 5. The first sealing sleeve 11 is snapped onto the outside of the catheter 4. The inner tube 9 rotates inside the outer tube 8 through the rotating hole 25 to adjust the angle of the fixing plate 10. The fixing plate 10 is fixed to the affected area through the adhesive layer 24. The spring 20 rebounds and pushes the pressure block 21. The pressure block 21 pushes the limiting plate 22. The limiting plate 22 seals the connection between the outer tube 8 and the inner tube 9 through the sealing ring 23.

[0022] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An intracranial support catheter assembly, comprising a flow guiding member (1), an outlet member (2), and an inlet member (3), wherein the outlet member (2) is located at one end of the flow guiding member (1), and the inlet member (3) is located at the other end of the flow guiding member (1), characterized in that, The flow guiding component (1) includes a conduit (4), a support strip (5) is provided on the inner side of the conduit (4), a support ring (6) is provided on the outer side of the support strip (5), and an elastic metal wire (7) is provided inside the support strip (5). The liquid outlet component (2) includes an outer tube (8), an inner tube (9) is provided at one end of the outer tube (8), a fixing plate (10) is provided on the rear side of the inner tube (9), a first sealing sleeve (11) is provided at the other end of the outer tube (8), a first connector (12) is provided on the inner side of the first sealing sleeve (11), and an inlet component (3) includes an arc-shaped head (13), a second sealing sleeve (14) is provided on one side of the arc-shaped head (13), and a second connector (15) is provided on the inner side of the second sealing sleeve (14). The inner side of the support bar (5) is provided with an internal thread (16), the outer side of the first connector (12) is provided with a first external thread (17), the outer side of the second connector (15) is provided with a second external thread (18), and the inside of the support bar (5) is provided with a sliding hole (19). A spring (20) is provided at one end of the inner tube (8), and a pressure block (21) is provided on one side of the spring (20). A limit plate (22) is provided at one end of the inner tube (9) located inside the outer tube (8). A sealing ring (23) is provided on one side of the limit plate (22). An adhesive layer (24) is provided on the rear side of the fixing plate (10). A rotating hole (25) is opened on one side of the outer tube (8). The elastic metal wire (7) slides inside the support bar (5), and one end of the inner tube (9) rotates inside the outer tube (8); The first external thread (17) rotates to the inner position of the internal thread (16), the first connector (12) is fixed to the inner position of the support bar (5) through the internal thread (16) and the first external thread (17), the second external thread (18) rotates to the inner position of the internal thread (16), the second connector (15) is fixed to the inner position of the support bar (5) through the internal thread (16) and the first external thread (17), the elastic metal wire (7) is located inside the sliding hole (19), and the elastic metal wire (7) slides inside the support bar (5) through the sliding hole (19); The inner tube (9) is located inside the rotating hole (25). The inner tube (9) slides through the rotating hole (25) inside the outer tube (8). The limiting plate (22) and the sealing ring (23) both slide inside the outer tube (8). The sealing ring (23) is fixed inside the outer tube (8) by the limiting plate (22).

2. The intracranial support catheter assembly according to claim 1, characterized in that, The first sealing sleeve (11) slides on the outer side of the flow guide member (1), and the first connector (12) rotates on the inner side of the support bar (5).

3. The intracranial support catheter assembly according to claim 1, characterized in that, The second sealing sleeve (14) slides on the outer side of the flow guide member (1), and the second connector (15) rotates on the inner side of the support bar (5).

4. The intracranial support catheter assembly according to claim 1, characterized in that, The arc-shaped head (13) is connected to one end of the flow guide member (1) through the second connector (15), and the other end of the flow guide member (1) is connected to one end of the outer tube (8) through the first connector (12). The other end of the outer tube (8) is connected to one end of the inner tube (9).

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