Adjustable laser ablation catheter support

Abstract

The application discloses an adjustable laser ablation catheter support which is installed on a catheter sleeve and used for adjusting the insertion direction of a catheter body when the catheter body is inserted into a body, and comprises a mounting ring block, a plurality of groups of rotating wheel mechanisms arranged on the inner side of the mounting ring block, the rotating wheel mechanism comprising two sliding mounting plates penetrating through the mounting ring block, a rotating shaft rotating between the mounting plates and a rubber wheel arranged in the middle of the rotating shaft and adhering to the outer wall of the catheter body, an elastic assembly used for driving the rubber wheel to extrude the catheter body, and a positioning assembly used for limiting the rotation of the rotating shaft and the rubber wheel. The application is installed on the outside of the catheter sleeve, utilizes the torsional conductivity of the laser ablation catheter or the endoscope tube wall, and adjusts the insertion direction of the catheter or the endoscope tube in the body by matching the friction control of the rubber wheel, so that the longer laser ablation catheter can be inserted into the body from different angles, the fine operation of hands is not needed, and the application is more suitable for beginners of brain tumor operation.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an adjustable laser ablation catheter stent. Background Technology

[0002] Magnetic resonance-guided laser ablation, also known as LITT, is a new brain tumor treatment technique. By using magnetic resonance technology during brain tumor surgery, it is possible to perform hyperthermia on lesions (brain tumors, epileptic lesions, radiation necrosis, etc.). Through appropriate and safe temperature and hyperthermia range, the lesions are precisely eliminated without damaging the normal brain tissue and neurovascular structures surrounding the lesions.

[0003] Laser ablation therapy requires the use of a laser ablation catheter inserted into the lesion through a vein. Generally, an endoscope is used in conjunction with the laser ablation catheter to precisely locate and treat the tumor. However, traditional laser ablation therapy for brain tumors is complicated by the complex structure of the brain and the high cost of using a vascular endoscope within the brain's blood vessels. Furthermore, it requires surgeons to use a high level of manual dexterity to adjust the endoscopic position. For beginners in brain tumor surgery, this often requires extensive surgical experience and is difficult to master. In actual surgery, a great deal of effort is needed to control and adjust the angle of the endoscopic insertion, making the operation inconvenient.

[0004] Therefore, this application proposes an adjustable laser ablation catheter stent to solve the above-mentioned technical problems. Summary of the Invention

[0005] The main objective of this invention is to provide an adjustable laser ablation catheter stent that is mounted on a catheter sheath and can assist in inserting a long laser ablation catheter into the patient's body from different angles without requiring delicate hand manipulation.

[0006] To address the aforementioned technical problems, this invention provides an adjustable laser ablation catheter support, which is mounted on a catheter sleeve and used to adjust the insertion direction of the catheter body during its insertion into the body.

[0007] Furthermore, including:

[0008] The mounting ring block has multiple sets of rotating wheel mechanisms on its inner side. The rotating wheel mechanism includes two mounting plates that slide through the mounting ring block, a rotating shaft that rotates between the mounting plates, and a rubber wheel that is set in the middle of the rotating shaft and fits against the outer wall of the conduit body.

[0009] Elastic components are used to drive the rubber wheel to press against the conduit body;

[0010] Positioning components are used to limit the rotation of the shaft and rubber wheel.

[0011] Furthermore, the elastic component includes a spring groove disposed inside the mounting plate, a limiting connecting plate that slides in the spring groove and connects to the mounting plate, and a compression spring disposed in the spring groove and connects to the limiting connecting plate. The compression spring is used to compress the limiting connecting plate to slide towards the rubber wheel position.

[0012] Furthermore, the positioning component includes a sliding groove disposed within the mounting plate, a gear disposed within the sliding groove and connected to a rotating shaft for synchronous rotation, and a fixing member for controlling the rotation of the gear.

[0013] Furthermore, the fixing member includes a sliding plate that slides vertically within a sliding groove, a plurality of toothed posts disposed on the sliding plate, and a control member for driving the sliding plate to move vertically.

[0014] When the sliding plate is located at the top of the sliding groove, the tooth column and the bottom tooth groove of the gear are engaged.

[0015] Furthermore, the control element is configured as a sliding through-mount plate and a pull rod disposed on the sliding plate.

[0016] Furthermore, it also includes a mounting assembly disposed on the conduit sleeve for connecting the mounting ring block.

[0017] Furthermore, the installation assembly includes a U-shaped clamping plate that is snapped onto the edge of the conduit sleeve and a connecting bracket that connects the mounting ring block to the U-shaped clamping plate.

[0018] Furthermore, the mounting assembly also includes bolts disposed on the U-shaped clamping plate for threaded clamping of the outer wall of the conduit sleeve.

[0019] Furthermore, the outer side of the rubber wheel is provided with friction texture.

[0020] The beneficial effects of this invention are reflected in:

[0021] 1. This invention, by setting an external part on the catheter sleeve, utilizes the torsional conductivity of the laser ablation catheter or endoscope wall, combined with the friction control of the rubber wheel, to adjust the insertion angle of the catheter or endoscope. This allows for adjusting the insertion direction of the catheter or endoscope within the body, assisting in inserting a longer laser ablation catheter into the patient's body from different angles. This ensures that the laser ablation catheter is precisely inserted into the lesion area to perform laser ablation treatment on the tumor, without requiring delicate hand operation, making it more suitable for beginners in brain tumor surgery.

[0022] 2. By setting up an elastic component, the present invention utilizes the sliding of the limiting connecting plate in the spring groove to drive the rubber wheel to move on the inner wall of the mounting ring block, and uses the compression spring to make the rubber wheel continuously press against the catheter or endoscope tube, so that multiple rubber wheels can continuously fit against the outer wall of the catheter or endoscope tube. It is suitable for clamping and controlling the friction of the outer wall when catheters or endoscope tubes of different diameters are inserted into the human body. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0024] Figure 1 This is an overall perspective view of the present invention;

[0025] Figure 2 This is a three-dimensional cross-sectional schematic view of the elastic component of the present invention;

[0026] Figure 3 This is a three-dimensional cross-sectional schematic view of the positioning component of the present invention;

[0027] Figure 4 This is an overall perspective view of the present invention in its installed state;

[0028] Figure 5 A three-dimensional view of a traditional laser ablation catheter inserted into the catheter sleeve.

[0029] In the picture:

[0030] 1. Mounting components; 11. U-shaped clamping plate; 12. Bolt; 13. Connecting bracket; 2. Mounting ring block; 3. Mounting plate; 4. Elastic components; 41. Limiting connecting plate; 42. Spring groove; 43. Compression spring; 5. Rotating shaft; 6. Rubber wheel; 61. Friction texture; 7. Positioning components; 71. Pull rod; 72. Gear; 73. Sliding plate; 74. Tooth column; 75. Sliding groove; 8. Conduit body; 9. Conduit sleeve. Detailed Implementation

[0031] 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 a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. 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.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, in the embodiments of this invention, "multiple" refers to two or more. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0034] For details in the embodiments, please refer to Figures 1 to 5 .

[0035] like Figure 1 , Figure 4 and Figure 5 As shown, the present invention provides an adjustable laser ablation catheter stent, which is installed on the catheter sleeve 9 for adjusting the insertion direction of the catheter body 8 during insertion into the body.

[0036] In laser ablation of brain tumors, such as Figure 5 As shown, the catheter sleeve 9 is typically used to connect to a vein in the human body, and then the catheter body 8 is inserted into the brain tumor lesion site for laser ablation.

[0037] When a traditional laser ablation catheter is inserted into the human body, the insertion angle and direction are usually adjusted by using an endoscope in conjunction with the doctor's high level of hand micro-movements. For beginners in brain tumor surgery, a lot of relevant surgical experience is usually required, so beginners often find it difficult to get started.

[0038] Therefore, placing an adjustable stent outside the laser ablation catheter can greatly improve the utilization rate of brain tumor surgery and make laser tumor ablation more convenient during the procedure.

[0039] Specifically, an adjustable laser ablation catheter stent includes:

[0040] The mounting ring block 2 has multiple sets of rotating wheel mechanisms on its inner side. The rotating wheel mechanism includes two mounting plates 3 that slide through the mounting ring block 2, a rotating shaft 5 that rotates between the mounting plates 3, and a rubber wheel 6 that is set in the middle of the rotating shaft 5 and fits against the outer wall of the guide tube body 8.

[0041] Elastic component 4 is used to drive rubber wheel 6 to press against guide tube body 8;

[0042] Positioning component 7 is used to limit the rotation of the shaft 5 and the rubber wheel 6.

[0043] The rubber wheel 6 has friction grooves 61 on its outer side, which are used to improve the friction of the rubber wheel 6 when it is in contact with the outer wall of the catheter or endoscope tube.

[0044] In practice, by setting an external attachment on the catheter sleeve 9, the torsional conductivity of the laser ablation catheter or endoscope wall, combined with the friction control of the rubber wheel 6, allows for adjustment of the insertion angle of the catheter or endoscope. This enables adjustment of the insertion direction of the catheter or endoscope within the body, assisting in inserting longer laser ablation catheters from different angles within the patient's body. This ensures precise insertion of the laser ablation catheter into the lesion area for laser ablation treatment of the tumor. The positioning component 7 controls the rotation of the rubber wheel 6, thereby controlling the insertion angle of the catheter body 8. This facilitates precise external control of the insertion position of the catheter body 8 during brain tumor surgery, eliminating the need for delicate hand manipulation and making it more suitable for beginners in brain tumor surgery. Simultaneously, the elastic component 4 continuously presses the rubber wheel 6 against the catheter or endoscope, allowing multiple rubber wheels 6 to continuously adhere to the outer wall of the catheter or endoscope. This is suitable for clamping and controlling the friction of the outer wall when catheters or endoscopes of different diameters are inserted into the body.

[0045] like Figure 2 As shown, the elastic component 4 includes a spring groove 42 disposed inside the mounting plate 3, a limiting connecting plate 41 that slides in the spring groove 42 and connects to the mounting plate 3, and a compression spring 43 disposed in the spring groove 42 and connects to the limiting connecting plate 41. The compression spring 43 is used to compress the limiting connecting plate 41 to slide towards the position of the rubber wheel 6.

[0046] In practice, the sliding of the limiting connecting plate 41 in the spring groove 42 can drive the rubber wheel 6 to move on the inner wall of the mounting ring block 2, and the compression spring 43 can make the rubber wheel 6 continuously press the catheter or endoscope tube, so that multiple rubber wheels 6 can continuously fit against the outer wall of the catheter or endoscope tube.

[0047] like Figure 3 As shown, the positioning component 7 includes a sliding groove 75 disposed in the mounting plate 3, a gear 72 disposed in the sliding groove 75 and connected to the rotating shaft 5 for synchronous rotation, and a fixing member for controlling the rotation of the gear 72.

[0048] In practice, the fixing component controls the gear 72 to drive the rubber wheel 6 to be fixed. Since the laser ablation catheter or endoscope tube wall has torsional conductivity, when the catheter or endoscope tube is continuously inserted, the outer wall of the catheter or endoscope tube that is attached to the fixing rubber wheel 6 will be affected by friction, causing the end to bend towards the fixing rubber wheel 6, thereby playing a role in directional adjustment.

[0049] The fixing components include a sliding plate 73 that slides vertically within a sliding groove 75, a plurality of toothed posts 74 disposed on the sliding plate 73, and a control component for driving the sliding plate 73 to move vertically.

[0050] When the sliding plate 73 is located at the top of the sliding groove 75, the toothed column 74 and the bottom tooth groove of the gear 72 are engaged. At this time, the toothed column 74 limits the rotation of the gear 72, thereby driving the rubber wheel 6 to rotate and be fixed on the mounting plate 3.

[0051] Meanwhile, the control component can be a pull rod 71 that slides through the mounting plate 3 and is set on the sliding plate 73. By pulling the pull rod 71 by hand, the sliding plate 73 can be controlled to move up and down in the sliding groove 75, thereby allowing the toothed column 74 and the gear 72 to engage with each other, and completing the rotation and fixation of the rubber wheel 6 on the mounting plate 3.

[0052] It should be noted that the fixing component can be replaced with other mechanical structures that can control the rotation of the limiting rubber wheel 6, and the control component can also be replaced with other mechanical structures that can control the sliding plate 73 to rise and fall within the sliding groove 75.

[0053] like Figure 1 As shown, the adjustable laser ablation catheter support also includes a mounting component 1 disposed on the catheter sleeve 9 for connecting the mounting ring block 2.

[0054] The installation component 1 includes a U-shaped clamping plate 11 that is clamped on the edge of the conduit sleeve 9 and a connecting frame 13 that connects the installation ring block 2 on the U-shaped clamping plate 11. By using the clamping of the U-shaped clamping plate 11 on the edge of the conduit sleeve 9, the connecting frame 13 can drive the installation ring block 2 to be installed and connected on the conduit sleeve 9.

[0055] It should be noted that the U-shaped clamping plate 11 can be set as an elastic structure. The U-shaped groove of the U-shaped clamping plate 11 can be used to elastically clamp the edge of the catheter sleeve 9 for the installation of the catheter support on the catheter sleeve 9.

[0056] In addition, the mounting assembly 1 also includes bolts 12 disposed on the U-shaped clamping plate 11 for threadedly pressing the outer wall of the conduit sleeve 9.

[0057] In practice, the bolt 12 can be screwed in to engage with the U-shaped clamping plate 11 to clamp the edge of the conduit sleeve 9 and install the conduit support on the conduit sleeve 9.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable laser ablation catheter stent, characterized in that, The catheter support is installed on the catheter sleeve (9) for the catheter body (8) to be inserted into the body, and the insertion direction is adjusted during the insertion of the catheter body (8) into the body; The catheter stent includes: The mounting ring block (2) has multiple sets of rotating wheel mechanisms on its inner side. The rotating wheel mechanism includes two mounting plates (3) that slide through the mounting ring block (2), a rotating shaft (5) that rotates between the mounting plates (3), and a rubber wheel (6) that is located in the middle of the rotating shaft (5) and fits against the outer wall of the conduit body (8). The elastic component (4) is used to drive the rubber wheel (6) to press against the conduit body (8); Positioning component (7) is used to limit the rotation of the shaft (5) and the rubber wheel (6); The elastic component (4) includes a spring groove (42) disposed inside the mounting plate (3), a limiting connecting plate (41) that slides in the spring groove (42) and connects to the mounting plate (3), and a compression spring (43) disposed in the spring groove (42) and connects to the limiting connecting plate (41). The compression spring (43) is used to compress the limiting connecting plate (41) to slide towards the rubber wheel (6). The rubber wheel (6) has friction grooves (61) on its outer side.

2. The adjustable laser ablation catheter stent as described in claim 1, characterized in that, The positioning component (7) includes a sliding groove (75) disposed in the mounting plate (3), a gear (72) disposed in the sliding groove (75) and connected to the rotating shaft (5) for synchronous rotation, and a fixing member for controlling the rotation of the gear (72).

3. The adjustable laser ablation catheter stent as described in claim 2, characterized in that, The fixing component includes a sliding plate (73) that slides vertically within a sliding groove (75), a plurality of toothed posts (74) disposed on the sliding plate (73), and a control component for driving the sliding plate (73) to move vertically. When the sliding plate (73) is located at the top of the sliding groove (75), the toothed column (74) and the bottom tooth groove of the gear (72) are engaged.

4. The adjustable laser ablation catheter stent as described in claim 3, characterized in that, The control component is configured as a sliding through mounting plate (3) and a pull rod (71) mounted on the sliding plate (73).

5. The adjustable laser ablation catheter stent as described in claim 1, characterized in that, It also includes an installation component (1) provided on the conduit sleeve (9) for connecting the installation ring block (2).

6. The adjustable laser ablation catheter stent as described in claim 5, characterized in that, The installation assembly (1) includes a U-shaped clamping plate (11) that is clamped on the edge of the conduit sleeve (9) and a connecting frame (13) that is set on the U-shaped clamping plate (11) to connect the installation ring block (2).

7. The adjustable laser ablation catheter stent as described in claim 6, characterized in that, The mounting assembly (1) also includes bolts (12) disposed on the U-shaped clamp (11) for threadedly pressing the outer wall of the conduit sleeve (9).

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