Catheter device for neurosurgery operation intervention
By cooperating with the telescopic support expansion member and the sheath connection member, vascular dilation is achieved, the dependence on external pump sources in the prior art is solved, the operation convenience and stability of neurosurgery is improved, and the risk of vascular damage is reduced.
Patent Information
- Application Number
- CN202510531730.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2025-07-22
AI Technical Summary
In existing neurosurgery, when vascular stenosis or closure is used, commonly used dilation means require external pump sources to increase operation and maintenance costs and reduce device adaptability.
The intersecting cooperation between the telescopic support expansion member and the sheath connection member is adopted to realize the protrusion and reset of the support expansion member through the contrast fluid delivery catheter, avoiding the connection of the external pump source, and adapting to the inner wall of the blood vessel by using the elastic deformation of the deformed support member.
Simplify the device structure, improve operational convenience and stability, reduce dependence on external equipment, avoid vascular damage, and expand adaptability.
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Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a catheter device for neurosurgical intervention. Background Art
[0002] During neurosurgical operations, it is usually through femoral artery puncture. The catheter ascends along the blood vessel to the target position. By injecting contrast agent, the visualization of blood vessels is achieved, and lesions such as aneurysms, arteriovenous malformations, and vascular stenosis are identified. The lesion location is accurately positioned to provide a factual basis for the planning of the surgical path. However, in the actual contrast process, if there is a situation of vascular stenosis or occlusion, interventional treatment is required, involving vascular dilation. Among the commonly used dilation methods currently, water balloon or inflatable balloon is generally used for dilation, which requires connecting an external pumping component. While increasing the operation and maintenance cost, it also enhances the dependence on operating machinery, greatly reducing the adaptability of the instrument. Summary of the Invention
[0003] In view of the above situation, the present invention provides a catheter device for neurosurgical intervention. Through the interpenetrating cooperation between the telescopic support and dilation component and the sheath connection component, the effective concealment of the support and dilation component is realized in a limited slender and narrow space. When needed, the telescopic support and dilation component is extended for dilation and retracted by pulling the contrast agent transmission catheter, avoiding connecting an external pump source, streamlining the device structure, improving the convenience of operation for medical staff, and enhancing the stability of the device itself.
[0004] The technical solution adopted by the present invention is as follows: The present invention provides a catheter device for neurosurgical intervention, including a telescopic support and dilation component, a sheath connection component, a contrast agent transmission catheter, and a handheld control handle. The telescopic support and dilation component is slidably disposed within the sheath connection component. The handheld control handle is fixedly connected to the bottom of the sheath connection component. The contrast agent transmission catheter penetrates upward through the handheld control handle and the sheath connection component. The telescopic support and dilation component includes a sliding support member, an adsorption support member, and a deformation support component. The deformation support component is fixedly connected between the sliding support member and the adsorption support member.
[0005] Further, the sliding support member includes a dragging bottom ring and connecting short tubes. A plurality of connecting short tubes are fixedly arranged in a circumferential array on the top surface of the dragging bottom ring. Expendable adsorption blocks are fixedly arranged on both sides of the dragging bottom ring. The adsorption support member includes a supporting top ring and wrapping short tubes. A plurality of wrapping short tubes are fixedly arranged in a circumferential array on the bottom surface of the supporting top ring. A wrapping adsorption tube is fixedly arranged on the inner wall of the supporting top ring.
[0006] Preferably, the deformable support member includes a support rod shaft and a wrapping bladder cavity. There are multiple support rod shafts. The upper end of the support rod shaft is fixedly inserted into the wrapping short tube, and the lower end of the support rod shaft is fixedly inserted into the connecting short tube.
[0007] As a further preference of the present invention, the wrapping bladder cavity is wrapped outside the support rod shaft. The support rod shaft is made of nitinol alloy, and the wrapping bladder cavity is made of medical TPE material.
[0008] Furthermore, the outer wall of the wrapping bladder cavity is coated with a hydrophilic coating. The telescopic support and expansion member proposed in the device of the present invention is overall slender, satisfying the function of being hidden in the sheath tube connecting member under normal conditions. While its own structure is simple, through the linkage cooperation with other components, the function of support and expansion is realized.
[0009] Preferably, the sheath tube connecting member includes a sheath tube leading end and an inserted connecting tube part. The inserted connecting tube part is fixedly connected to the lower end of the sheath tube leading end. The telescopic support and expansion member is arranged in the sheath tube leading end. The lower end of the inserted connecting tube part is fixedly connected to the upper end of the hand-held control handle. The sheath tube leading end includes a sliding cavity pipe fitting, an internal connecting spring and a wrapping end piece. The internal connecting spring is fixedly arranged in the sliding cavity pipe fitting, and the wrapping end piece is fixedly arranged at the upper end of the sliding cavity pipe fitting. There is a certain space between the top surface of the wrapping end piece and the sliding cavity pipe fitting in the device of the present invention, satisfying the rotation and movement of the sliding support member above the sliding cavity pipe fitting, enabling the protruding adsorption block to fall into the placement notch for clamping. The top surface of the sliding cavity pipe fitting positions and supports the sliding support member of the telescopic support and expansion member. While the contrast medium transmission catheter is retracted, it assists the deformable support member to present an expansion deformation to expand and support the inner wall of the blood vessel.
[0010] As a further preference of the present invention, the inner wall of the sliding cavity pipe fitting is symmetrically provided with vertical sliding notches. The two walls of the vertical sliding notches are fixedly provided with notch inner adsorption plates. The top surface of the sliding cavity pipe fitting is symmetrically provided with placement notches. The protruding adsorption block slides in the vertical sliding notches. The upper end of the inserted connecting tube part is fixedly connected to the lower end of the sliding cavity pipe fitting. The upper end of the internal connecting spring is fixedly connected to the bottom surface of the dragging bottom ring, and the lower end of the internal connecting spring is fixedly connected to the top surface of the inserted connecting tube part. After the telescopic support and expansion member of the device of the present invention extends out of the sheath tube connecting member along with the contrast medium transmission catheter, by changing the distance between the sliding support member and the adsorption support member, using the elastic deformation of the deformable support member itself, the expansion degree of the deformable support member is changed, avoiding excessive support and causing damage to the inner wall of the blood vessel, with strong adaptability.
[0011] Further, the contrast agent delivery catheter includes a delivery tube body and an energized adsorption tube. A clamping groove is formed on the delivery tube body, and the energized adsorption tube is fixedly arranged at the clamping groove.
[0012] The delivery tube body penetrates upward through the insertion connection tube part, the dragging bottom ring, the supporting top ring and the sliding cavity pipe fitting and then protrudes out through the wrapping end piece.
[0013] Preferably, a built-in battery is fixedly arranged in the handheld control handle. Control button A and control button B are arranged on the handheld control handle, and both control button A and control button B are electrically connected to the built-in battery.
[0014] As a further preference of the present invention, the adsorption plate member in the notch is electrically connected to the built-in battery, the energized adsorption tube is electrically connected to the built-in battery, control button A is signal-connected to the adsorption plate member in the notch, and control button B is signal-connected to the energized adsorption tube.
[0015] The beneficial effects obtained by the present invention with the above structure are as follows: (1) The telescopic support and expansion member proposed in the device of the present invention is overall slender, meeting the function of being hidden in the sheath connection member under normal conditions. While its own structure is simple, through the linkage cooperation with other members, the function of support and expansion is realized.
[0016] (2) There is a certain space between the top surface of the wrapping end piece and the sliding cavity pipe fitting proposed in the device of the present invention, which meets the requirement that the sliding support member rotates and moves above the sliding cavity pipe fitting, enabling the expenditure adsorption block to fall into the placement notch for clamping. The top surface of the sliding cavity pipe fitting positions and supports the sliding support member of the telescopic support and expansion member. While the contrast agent delivery catheter is retracted, it assists the deformable support member to present an expansion deformation to expand and support the inner wall of the blood vessel.
[0017] (3) After the telescopic support and expansion member in the device of the present invention protrudes out of the sheath connection member along with the contrast agent delivery catheter, by changing the distance between the sliding support member and the adsorption support member, and utilizing the elastic deformation of the deformable support member itself, the expansion degree of the deformable support member is changed, avoiding excessive support and causing damage to the inner wall of the blood vessel, with strong adaptability.
[0018] (4) In the device of the present invention, the telescopic support and expansion member for supporting the blood vessel does not necessarily need to be used. When not in use, it can be completely hidden and will not protrude out of the sheath leading end ahead of the delivery tube body, increasing the risk of causing harm to the inner wall of the blood vessel due to the protrusion of the telescopic support and expansion member.
[0019] (5) The support method of the telescopic support expansion member adopts a complete physical structure, rather than the common water balloon or balloon airbag method on the current market. This is to streamline the structure of the support member. Because both the water balloon and the balloon airbag need to be connected to an external pumping member and a water tank or an air tank to achieve the inflation and support of the water bag or the airbag, which not only increases the operation and maintenance costs but also increases the possibility of device failure. By adopting a physical support structure, the dependence on instruments is reduced and the adaptability of this device is improved. Brief Description of the Drawings
[0020] Figure 1 It is an elevation view of a catheter device for neurosurgical intervention proposed by the present invention; Figure 2 It is a front view of a catheter device for neurosurgical intervention proposed by the present invention; Figure 3 is Figure 2 The cross-sectional view along the cutting line A-A in Figure 4 It is a schematic structural view of the telescopic support expansion member proposed by the present invention; Figure 5 It is a schematic structural view of the sheath tube connection member proposed by the present invention; Figure 6 is Figure 5 The partial enlarged view at position I in Figure 7 It is a side view of the sheath tube connection member and the contrast agent transmission catheter proposed by the present invention; Figure 8 is Figure 7 The cross-sectional view along the cutting line B-B in Figure 9 is Figure 8 The partial enlarged view at position II in
[0021] Wherein, 1. Telescopic support expansion member, 2. Sheath tube connection member, 3. Contrast agent transmission catheter, 4. Hand-held control handle, 5. Sliding support member, 6. Adsorption support member, 7. Deformable support member, 8. Sheath tube leading end, 9. Interpenetrating connection pipe part, 10. Transmission pipe body, 11. Electrified adsorption pipe, 12. Built-in battery, 13. Control button A, 14. Control button B, 15. Dragging bottom ring, 16. Connecting short pipe, 17. Expendable adsorption block, 18. Support top ring, 19. Wrapping short pipe, 20. Wrapping adsorption pipe, 21. Support rod shaft, 22. Wrapping capsule cavity, 23. Sliding cavity pipe fitting, 24. Built-in connecting spring, 25. Wrapping end piece, 26. Vertical sliding notch, 27. Adsorption plate in the notch, 28. Placement notch, 29. Engaging notch.
[0022] The accompanying drawings are used to provide a further understanding of the present invention and form a part of the description. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. Detailed Description of the Invention
[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.
[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.
[0025] As Figures 1-9 shown, the present invention provides a catheter device for neurosurgical intervention, including a telescopic support and expansion member 1, a sheath connection member 2, a contrast agent transmission catheter 3, and a handheld control handle 4. The telescopic support and expansion member 1 is slidably disposed within the sheath connection member 2. The handheld control handle 4 is fixedly connected to the bottom of the sheath connection member 2. The contrast agent transmission catheter 3 is inserted upward through the handheld control handle 4 and the sheath connection member 2. The telescopic support and expansion member 1 includes a sliding support member 5, an adsorption support member 6, and a deformation support member 7. The deformation support member 7 is fixedly connected between the sliding support member 5 and the adsorption support member 6.
[0026] The sliding support member 5 includes a dragging bottom ring 15 and connecting short tubes 16. A plurality of connecting short tubes 16 are fixedly arranged in a circumferential array on the top surface of the dragging bottom ring 15. Expenditure adsorption blocks 17 are fixedly arranged on both sides of the dragging bottom ring 15. The adsorption support member 6 includes a support top ring 18 and wrapping short tubes 19. A plurality of wrapping short tubes 19 are fixedly arranged in a circumferential array on the bottom surface of the support top ring 18. A wrapping adsorption tube 20 is fixedly arranged on the inner wall of the support top ring 18.
[0027] The deformation support member 7 includes support rod shafts 21 and wrapping cavity 22. There are a plurality of support rod shafts 21. The upper end portions of the support rod shafts 21 are inserted and fixed into the wrapping short tubes 19, and the lower end portions of the support rod shafts 21 are inserted and fixed into the connecting short tubes 16.
[0028] The wrapping cavity 22 is wrapped around the outside of the support rod shaft 21. The support rod shaft 21 is made of nitinol alloy, the wrapping cavity 22 is made of medical TPE material, and the outer wall of the wrapping cavity 22 is coated with a hydrophilic coating.
[0029] The sheath tube connecting member 2 includes a sheath tube leading end 8 and an inserted connecting tube portion 9. The inserted connecting tube portion 9 is fixedly arranged at the lower end of the sheath tube leading end 8. The telescopic support and expansion member 1 is arranged in the sheath tube leading end 8. The lower end of the inserted connecting tube portion 9 is fixedly connected to the upper end of the hand-held control handle 4. The sheath tube leading end 8 includes a sliding cavity pipe fitting 23, a built-in connecting spring 24, and a wrapping end piece 25. The built-in connecting spring 24 is fixedly arranged in the sliding cavity pipe fitting 23, and the wrapping end piece 25 is fixedly arranged at the upper end of the sliding cavity pipe fitting 23.
[0030] Vertically sliding slots 26 are symmetrically formed on the inner wall of the sliding cavity pipe fitting 23. Slot inner adsorption plates 27 are fixedly arranged on the two walls of the vertically sliding slots 26. Placement slots 28 are symmetrically formed on the top surface of the sliding cavity pipe fitting 23. The protruding adsorption block 17 slides in the vertically sliding slots 26. The upper end of the inserted connecting tube portion 9 is fixedly connected to the lower end of the sliding cavity pipe fitting 23. The upper end of the built-in connecting spring 24 is fixedly connected to the bottom surface of the dragging bottom ring 15, and the lower end of the built-in connecting spring 24 is fixedly connected to the top surface of the inserted connecting tube portion 9.
[0031] The contrast agent transmission catheter 3 includes a transmission tube body 10 and an energized adsorption tube 11. A clamping groove 29 is formed on the transmission tube body 10, and the energized adsorption tube 11 is fixedly arranged at the clamping groove 29. The transmission tube body 10 passes through the inserted connecting tube portion 9, the dragging bottom ring 15, the support top ring 18, and the sliding cavity pipe fitting 23 from bottom to top and then protrudes through the wrapping end piece 25.
[0032] An internal battery 12 is fixedly arranged in the hand-held control handle 4. Control buttons A 13 and control buttons B 14 are arranged on the hand-held control handle 4. Both the control buttons A 13 and the control buttons B 14 are electrically connected to the internal battery 12.
[0033] The slot inner adsorption plate member 27 is electrically connected to the internal battery 12, the energized adsorption tube 11 is electrically connected to the internal battery 12, the control buttons A 13 are signal-connected to the slot inner adsorption plate member 27, and the control buttons B 14 are signal-connected to the energized adsorption tube 11.
[0034] During specific use, the internal battery 12 in the hand-held control handle 4 is in a fully charged state. The control buttons A 13 and the control buttons B 14 are electrically connected to the internal battery 12. The control buttons A 13 are signal-connected to the slot inner adsorption plate 27, and the control buttons B 14 are signal-connected to the energized adsorption tube 11. When the device is turned on, the slot inner adsorption plate 27 is electrically connected to the internal battery 12, and the slot inner adsorption plate 27 is in an adsorption state to adsorb the protruding adsorption block 17 to fix the dragging bottom ring 15.
[0035] After opening the wound, a channel is established by puncture. The operator holds the handheld control handle 4, inserts the sheath tube connecting member 2 into the channel and advances it along the blood vessel to the target position. Then, the transfer tube body 10 of the contrast agent delivery catheter 3 at the tail of the handheld control handle 4 is pushed until the front end of the transfer tube body 10 reaches the designated position, and the contrast agent is delivered.
[0036] During the operation, when the sheath tube connecting member 2 encounters a vascular malformation or vascular stenosis during insertion, the control button B14 is pressed, and the built-in battery 12 stops supplying power to the adsorption plate 27 in the notch. The adsorption plate 27 in the notch stops adsorbing the protruding adsorption block 17. The energized adsorption tube 11 connected to the control button B14 is energized and enters the adsorption state. While the control button B14 is being pressed, the energized adsorption tube 11 remains in the continuous energized adsorption state. When the control button B14 stops being pressed, the energized adsorption tube 11 stops adsorbing. The transfer tube body 10 is pushed forward. When the energized adsorption tube 11 moves to the support top ring 18, it adsorbs and wraps the adsorption tube 20, fixing the positions of the transfer tube body 10 and the adsorption support member 6. The transfer tube body 10 is continuously pushed, driving the telescopic support expansion member 1 to move upward along the leading end 8 of the sheath tube. The protruding adsorption block 17 moves upward along the vertical sliding notch 26 until the adsorption support member 6 and the deformable support member 7 protrude out of the wrapping end member 25. The sliding support member 5 is stuck between the wrapping end member 25 and the top surface of the sliding cavity pipe member 23 due to the protruding adsorption block 17, and the built-in connecting spring 24 is dragged and stretched. The operator can feel an obvious sense of blockage, and the transfer tube body 10 cannot be further pushed. After the operator rotates the transfer tube body 10, the protruding adsorption block 17 rotates above the placement notch 28, and the transfer tube body 10 is released. At this time, under the dragging of the built-in connecting spring 24 on the dragging bottom ring 15, the protruding adsorption block 17 falls back into the placement notch 28, and the top surface of the sliding cavity pipe member 23 plays a role in clamping and fixing the dragging bottom ring 15. If the transfer tube body 10 is retracted, that is, the locking of the protruding adsorption block 17 fails, the operator repeats the rotation operation to ensure that the sliding cavity pipe member 23 effectively locks the sliding support member 5. After determining that the sliding support member 5 is locked, the operator pulls the transfer tube body 10. The adsorption tube 20 with the support top ring 18 moves downward with the energized adsorption tube 11. The support rod shaft 21 expands and unfolds, and the wrapping cavity 22 is deformed by the support of the support rod shaft 21 to expand the blood vessel. The contrast agent is delivered through the transfer tube body 10.
[0037] After the angiography is completed, the operator stops pressing the control button B14. The energized adsorption tube 11 stops adsorbing the adsorption tube 20. The support rod shaft 21 and the wrapping cavity 22 are reset. The adsorption support member 6 slides along the transfer tube body 10, and the operator withdraws the sheath tube connecting member 2.
[0038] The above is the overall working process of the present invention. Just repeat these steps during the next use.
[0039] When the telescopic support expansion member 1 proposed by the device of the present invention needs to be operated, after the telescopic support expansion member 1 is effectively pulled out of the front end of the sheath tube connection member 2 through the manual pulling operation of the operator, it is then manually supported and expanded to support the narrow blood vessel, achieving the technical effect that originally needed to be achieved by a pump body through the physical structure. While ensuring the operation effect, it reduces the operator's dependence on the instrument, expands the use scenario of the device of the present invention, and greatly improves the adaptability of the invention device.
[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.
[0041] The present invention and its implementation manners have been described above. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.
Claims
1. A catheter device for neurosurgical intervention, characterized in that: It includes a telescopic support and expansion member (1), a sheath connection member (2), a contrast medium transmission catheter (3), and a handheld control handle (4). The telescopic support and expansion member (1) is slidably disposed within the sheath connection member (2). The handheld control handle (4) is fixedly connected to the bottom of the sheath connection member (2). The contrast medium transmission catheter (3) is inserted upward through the handheld control handle (4) and the sheath connection member (2). The telescopic support and expansion member (1) includes a sliding support member (5), an adsorption support member (6), and a deformation support member (7). The deformation support member (7) is fixedly connected between the sliding support member (5) and the adsorption support member (6).
2. The catheter device for neurosurgical intervention according to claim 1, wherein: The sliding support member (5) includes a dragging bottom ring (15) and connecting short tubes (16). A plurality of the connecting short tubes (16) are fixedly connected in a circumferential array to the top surface of the dragging bottom ring (15). Expendable adsorption blocks (17) are fixedly connected to both sides of the dragging bottom ring (15). The adsorption support member (6) includes a support top ring (18) and wrapping short tubes (19). A plurality of the wrapping short tubes (19) are fixedly connected in a circumferential array to the bottom surface of the support top ring (18). A wrapping adsorption tube (20) is fixedly connected to the inner wall of the support top ring (18).
3. A catheter device for neurosurgical intervention according to claim 2, characterized in that: The deformation support member (7) includes support rod shafts (21) and a wrapping capsule cavity (22). A plurality of the support rod shafts (21) are provided. The upper end portions of the support rod shafts (21) are inserted and fixed within the wrapping short tubes (19). The lower end portions of the support rod shafts (21) are inserted and fixed within the connecting short tubes (16).
4. A catheter device for neurosurgical intervention according to claim 3, characterized in that: The wrapping capsule cavity (22) is wrapped around the outside of the support rod shafts (21). The support rod shafts (21) are made of nitinol. The wrapping capsule cavity (22) is made of medical TPE material. A hydrophilic coating is applied to the outer wall of the wrapping capsule cavity (22).
5. A catheter device for neurosurgical intervention according to claim 4, characterized in that: The sheath connection member (2) includes a sheath leading end (8) and an insertion connection pipe portion (9). The insertion connection pipe portion (9) is fixedly connected to the lower end portion of the sheath leading end (8). The telescopic support and expansion member (1) is disposed within the sheath leading end (8). The lower end portion of the insertion connection pipe portion (9) is fixedly connected to the upper end portion of the handheld control handle (4). The sheath leading end (8) includes a sliding cavity pipe fitting (23), a built-in connecting spring (24), and a wrapping end piece (25). The built-in connecting spring (24) is fixedly connected within the sliding cavity pipe fitting (23). The wrapping end piece (25) is fixedly connected to the upper end portion of the sliding cavity pipe fitting (23).
6. A catheter device for neurosurgical intervention according to claim 5, characterized in that: The inner wall of the sliding cavity pipe fitting (23) is symmetrically provided with vertical sliding notches (26). Two walls of the vertical sliding notches (26) are fixedly provided with in-notch adsorption plates (27). The top surface of the sliding cavity pipe fitting (23) is symmetrically provided with placement notches (28). The protruding adsorption block (17) slides in the vertical sliding notches (26). The upper end of the inserted connecting pipe part (9) is fixedly connected to the lower end of the sliding cavity pipe fitting (23). The upper end of the built-in connecting spring (24) is fixedly connected to the bottom surface of the dragging bottom ring (15). The lower end of the built-in connecting spring (24) is fixedly connected to the top surface of the inserted connecting pipe part (9).
7. A catheter device for neurosurgical intervention according to claim 6, characterized in that: The contrast agent delivery catheter (3) includes a delivery pipe body (10) and an energized adsorption pipe (11). A clamping groove (29) is formed on the delivery pipe body (10). The energized adsorption pipe (11) is fixedly arranged at the clamping groove (29). The delivery pipe body (10) passes through the inserted connecting pipe part (9), the dragging bottom ring (15), the supporting top ring (18) and the sliding cavity pipe fitting (23) from bottom to top and then extends out through the wrapping end piece (25).
8. A catheter device for neurosurgical intervention according to claim 7, characterized in that: The handheld control handle (4) is internally fixedly provided with a built-in battery (12). The handheld control handle (4) is provided with a control button A (13) and a control button B (14). Both the control button A (13) and the control button B (14) are electrically connected to the built-in battery (12).
9. A catheter device for neurosurgical intervention according to claim 8, characterized in that: The in-notch adsorption plate part (27) is electrically connected to the built-in battery (12). The energized adsorption pipe (11) is electrically connected to the built-in battery (12). The control button A (13) is signal-connected to the in-notch adsorption plate part (27). The control button B (14) is signal-connected to the energized adsorption pipe (11).