Micro-catheter auxiliary implantation cutting device

Abstract

The utility model belongs to the field of neurology treatment micro-catheters, and particularly relates to a micro-catheter auxiliary implanting and cutting device which comprises a grip, an adjusting rotating wheel is rotatably mounted in the grip, a connecting pipe is fixedly connected to the rear side of the grip, a sleeve shell is fixedly connected to the front side of the grip, and a handle is fixedly connected to the sleeve shell. A miniature catheter body is embedded in the sleeve shell, an indwelling pipe is arranged on the outer side of the sleeve shell, a through hole is formed in the inner wall of the indwelling pipe, a hanging ring is fixedly connected to the inner wall of the indwelling pipe, a transmission rod is rotatably installed on the inner wall of the hanging ring, and a connecting piece is in threaded fit with the surface of the transmission rod. The inner wall of the indwelling pipe is fixedly connected with a limiting block; the rotary knob controls the transmission rod to rotate in the hanging ring, the connecting piece in threaded fit with the surface of the transmission rod slides on the top face of the supporting rod and the inner side of the indwelling pipe, the blade is extruded through transmission of the connecting rod, the blade slides on the inner side of the limiting block, and the miniature catheter body is cut off.

Description

Technical Field

[0001] This utility model relates to the field of microcatheters for neurological treatment, specifically a microcatheter-assisted implantation and cutting device. Background Technology

[0002] A microcatheter is a medical device, usually made of plastic or metal, with a very small diameter, typically only a few millimeters. Microcatheters are primarily used for medical examinations and treatments, and can be used in surgery for navigation, sampling, drug injection, and guiding implants. A microcatheter typically consists of three parts: the catheter body, the catheter tip, and the connector.

[0003] In the clinical treatment of neurology, microcatheters are sometimes used for treatment. After the treatment is completed, because they are difficult to remove, doctors have to leave them in the patient's blood vessels, or leave them completely in place. Therefore, microcatheter-assisted implantation and cutting devices are needed.

[0004] Existing microcatheter-assisted implantation cutting devices are not easy to achieve a stable cutting effect, which may lead to unstable cutting effect and reduce the stability of the device.

[0005] Therefore, a microcatheter-assisted implantation and cutting device is proposed to address the above problems. Utility Model Content

[0006] To address the problems in the existing technology, this utility model proposes a microcatheter-assisted implantation and cutting device.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The microcatheter-assisted implantation and cutting device of this utility model includes a handle, an adjusting wheel rotatably installed inside the handle, a connecting tube fixedly connected to the rear side of the handle, a shell fixedly connected to the front side of the handle, a microcatheter body embedded inside the shell, an indwelling tube provided on the outer side of the shell, a through hole opened in the inner wall of the indwelling tube, a lifting ring fixedly connected to the inner wall of the indwelling tube, a transmission rod rotatably installed on the inner wall of the lifting ring, a connecting piece threaded on the surface of the transmission rod, a limit block fixedly connected to the inner wall of the indwelling tube, and a blade slidably installed on the inner side of the limit block.

[0008] Preferably, the indwelling tube is fixedly connected to a mounting plate on its side, and there are two mounting plates, which are symmetrically distributed on both sides of the indwelling tube.

[0009] Preferably, a knob is fixedly connected to one end of the transmission rod, and a support rod is rotatably connected to the other end of the transmission rod.

[0010] Preferably, the two sides of the support rod are fixedly connected to the inner wall of the indwelling tube, and the top of the support rod is slidably connected to the bottom surface of the connector.

[0011] Preferably, one end of a connecting rod is rotatably connected to one side of the connector, and the other end of the connecting rod is rotatably connected to the top of the blade.

[0012] Preferably, the size of the through hole matches the size of the microcatheter body.

[0013] The advantages of this utility model are:

[0014] This invention controls the rotation of the transmission rod inside the lifting ring by a knob, causing the threaded connector on the surface of the transmission rod to slide on the top surface of the support rod and inside the indwelling tube. Through the transmission of the connecting rod, the blade is squeezed, causing the blade to slide inside the limiting block and cut off the main body of the micro-catheter. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main view structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the casing structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the indwelling tube structure of this utility model;

[0019] Figure 4 This utility model Figure 3 A magnified structural diagram at point A.

[0020] In the diagram: 1. Handle; 2. Adjusting wheel; 3. Connecting tube; 4. Housing; 5. Miniature catheter body; 6. Indwelling tube; 7. Mounting plate; 8. Through hole; 9. Lifting ring; 10. Transmission rod; 11. Knob; 12. Support rod; 13. Limiting block; 14. Blade; 15. Connector; 16. Connecting rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figures 1-4 As shown, a microcatheter-assisted implantation and cutting device includes a handle 1, an adjusting wheel 2 rotatably mounted inside the handle 1, a connecting tube 3 fixedly connected to the rear side of the handle 1, a housing 4 fixedly connected to the front side of the handle 1, a microcatheter body 5 embedded inside the housing 4, an indwelling tube 6 provided on the outer side of the housing 4, a through hole 8 opened on the inner wall of the indwelling tube 6, a lifting ring 9 fixedly connected to the inner wall of the indwelling tube 6, a transmission rod 10 rotatably mounted on the inner wall of the lifting ring 9, a connecting piece 15 threadedly fitted on the surface of the transmission rod 10, a limiting block 13 fixedly connected to the inner wall of the indwelling tube 6, and a blade 14 slidably mounted on the inner side of the limiting block 13.

[0023] Furthermore, two mounting plates 7 are fixedly connected to the side of the indwelling tube 6, and the mounting plates 7 are symmetrically distributed on both sides of the indwelling tube 6.

[0024] During operation, the structure of having two mounting plates 7 symmetrically distributed on both sides of the indwelling tube 6 facilitates the application of adhesive tape through the mounting plates 7 to fix the indwelling tube 6 to the surface of the patient's skin.

[0025] Furthermore, a knob 11 is fixedly connected to one end of the transmission rod 10, and a support rod 12 is rotatably connected to the other end of the transmission rod 10;

[0026] During operation, the support rod 12 is rotatably connected to the other end of the transmission rod 10. The support rod 12 provides support for the transmission rod 10, thereby improving the stability of the transmission rod 10 during movement.

[0027] Furthermore, the two sides of the support rod 12 are fixedly connected to the inner wall of the indwelling tube 6, and the top of the support rod 12 is slidably connected to the bottom surface of the connector 15.

[0028] During operation, the support rod 12 is fixedly connected to the inner wall of the indwelling tube 6 on both sides, and the top of the support rod 12 is slidably connected to the bottom surface of the connector 15. The support rod 12 provides a limiting support effect for the connector 15, which improves the stability of the connector 15 during movement.

[0029] Furthermore, one end of the connecting rod 16 is rotatably connected to one side of the connector 15, and the other end of the connecting rod 16 is rotatably connected to the top end of the blade 14;

[0030] During operation, the structural design of the connecting rod 16, which rotates to connect the connecting piece 15 and the blade 14 respectively, allows the device to change the position of the blade 14 by adjusting the position of the connecting rod 16.

[0031] Furthermore, the size of the through hole 8 matches the size of the microcatheter body 5;

[0032] During operation, the structural design, which matches the size of the through hole 8 with the size of the microcatheter body 5, improves the sealing performance of the microcatheter body 5 during installation.

[0033] Working principle: First, an indwelling tube 6 is pre-embedded in the patient's body. The sheath 4 and the microcatheter body 5 are inserted into the indwelling tube 6. The microcatheter body 5 passes through the inside of the through hole 8 to treat the patient. When it is necessary to cut the microcatheter body 5, the transmission rod 10 is rotated inside the lifting ring 9 by the knob 11. The threaded connector 15 on the surface of the transmission rod 10 slides on the top surface of the support rod 12 and inside the indwelling tube 6. Through the transmission of the connecting rod 16, the blade 14 is squeezed, causing the blade 14 to slide inside the limiting block 13 and cut the microcatheter body 5.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A microcatheter-assisted implantation cutting device, comprising a handle (1), characterized in that: An adjusting wheel (2) is rotatably installed inside the handle (1). A connecting tube (3) is fixedly connected to the rear side of the handle (1). A housing (4) is fixedly connected to the front side of the handle (1). A micro-catheter body (5) is embedded inside the housing (4). An indwelling tube (6) is provided on the outer side of the housing (4). A through hole (8) is opened on the inner wall of the indwelling tube (6). A lifting ring (9) is fixedly connected to the inner wall of the indwelling tube (6). A transmission rod (10) is rotatably installed on the inner wall of the lifting ring (9). A connecting piece (15) is threaded on the surface of the transmission rod (10). A limit block (13) is fixedly connected to the inner wall of the indwelling tube (6). A blade (14) is slidably installed on the inner side of the limit block (13).

2. The microcatheter-assisted implantation and cutting device according to claim 1, characterized in that: The indwelling tube (6) is fixedly connected to a mounting plate (7) on its side. There are two mounting plates (7), which are symmetrically distributed on both sides of the indwelling tube (6).

3. The microcatheter-assisted implantation and cutting device according to claim 1, characterized in that: A knob (11) is fixedly connected to one end of the transmission rod (10), and a support rod (12) is rotatably connected to the other end of the transmission rod (10).

4. The microcatheter-assisted implantation and cutting device according to claim 3, characterized in that: The two sides of the support rod (12) are fixedly connected to the inner wall of the indwelling tube (6), and the top of the support rod (12) is slidably connected to the bottom surface of the connector (15).

5. The microcatheter-assisted implantation and cutting device according to claim 1, characterized in that: One side of the connector (15) is rotatably connected to one end of the connecting rod (16), and the other end of the connecting rod (16) is rotatably connected to the top of the blade (14).

6. The microcatheter-assisted implantation and cutting device according to claim 1, characterized in that: The size of the through hole (8) matches the size of the microcatheter body (5).

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