Telescopic micro catheter clamping device

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a telescopic micro catheter clamping device which comprises a first sliding rail. The two first sliding rails are symmetrically arranged; first sliding seats are slidably connected into the first sliding rails, and a second sliding rail is fixedly connected between the two first sliding seats. A clamping assembly is arranged in the second sliding rail. By means of the structural design that the micro-catheter is fixed through the clamping assembly, and meanwhile, the position of the first sliding base in the first sliding rail and the position of the clamping assembly in the second sliding rail are adjusted, the functions that the micro-catheter can be clamped and fixed, and meanwhile the position of the micro-catheter can be adjusted are achieved; the problem that after the micro-catheter moves or slips, friction is possibly generated between the micro-catheter and surrounding tissues or blood vessels, the catheter is damaged to different degrees, and the operation is affected is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, in particular to a retractable micro-catheter clamping device. Background Art

[0002] A retractable microcatheter is a medical device that is often used during interventional surgery or diagnosis, especially in blood vessels, nerves or other body plumbing systems. This microcatheter is retractable, which means it can be expanded or contracted as needed to adapt to different application scenarios. The main uses of retractable microcatheters are angiography, used for angiography in the vascular system to help doctors observe the structure and blood flow of blood vessels, for drug therapy delivery, through the microcatheter to deliver drugs directly to specific blood vessels or tissues, to improve drug effects and reduce side effects, and for embolization therapy, in the case of blood vessel rupture or abnormal vascular dilation, the microcatheter is used to deliver embolic substances to seal the blood vessels.

[0003] During surgery using a microcatheter, the microcatheter may move or slip. Once the microcatheter moves or slips, it may rub against surrounding tissues or blood vessels, causing varying degrees of damage to the catheter and affecting the surgery.

[0004] To this end, the utility model provides a retractable micro-catheter clamping device. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the utility model to solve its technical problem is: a retractable microcatheter clamping device described in the utility model comprises a first sliding rail; two first sliding rails are symmetrically arranged; a first sliding seat is slidably connected inside the first sliding rail, and a second sliding rail is fixedly connected between the two first sliding seats; a clamping assembly is arranged inside the second sliding rail; the position of the clamping assembly can be adjusted by sliding the clamping assembly inside the second sliding rail, thereby making it more convenient to adjust the position of the microcatheter.

[0007] Preferably, the clamping assembly includes a second sliding seat; the second sliding seat is slidably connected to the internal position of the second sliding rail; a support rod is fixedly connected to the top of the second sliding seat; a fixed frame is fixedly connected to the top of the support rod; a tube pressing plate is slidably connected to the inside of the fixed frame; a spring is fixedly connected between the top of the tube pressing plate and the inner side wall of the fixed frame; a fixing groove is provided between the fixed frame and the tube pressing plate; a first locking block is slidably connected to the inside of the second sliding seat; a spring is fixedly connected between the side wall of the first locking block and the inner side wall of the second sliding seat; a pressing block is fixedly connected to the top of the first locking block; so that the position of the second sliding seat is more stable after adjustment.

[0008] Preferably, a driving motor is fixedly connected to the side wall of the first sliding seat; a threaded rod is fixedly connected to the output end of the driving motor; the threads on the surface of the threaded rod are symmetrically arranged along the center line of the threaded rod; the first sliding seat is internally slidably connected to two second locking blocks, and the two second locking blocks are symmetrically arranged inside the first sliding seat along the center line of the threaded rod; the second locking block is threadedly connected to the threaded rod; the position of the first sliding seat can be made more stable after adjustment, so that the clamping effect of the microcatheter is better.

[0009] Preferably, a guide rod is fixedly connected to the inside of the first sliding seat; the guide rod is arranged parallel to the threaded rod; the second locking block is slidably connected to the guide rod; the second locking block is less likely to tilt during the sliding process, making the sliding of the second locking block more stable.

[0010] Preferably, a positioning block is fixedly connected to the threaded rod; the positioning block is rotatably connected to an inner position of the first sliding seat; this can reduce the chance of tilting of the threaded rod during rotation, making the rotation of the threaded rod more stable.

[0011] Preferably, a plurality of positioning blocks are provided between the first sliding seat and the positioning block; the side walls of the positioning blocks are in contact with the side walls of the anti-wear balls; this makes the friction between the first sliding seat and the positioning blocks smaller, thereby reducing the wear between the first sliding seat and the positioning blocks.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The retractable microcatheter clamping device described in the utility model fixes the microcatheter through the clamping assembly, and at the same time adjusts the position of the first sliding seat inside the first sliding rail and the internal position of the clamping assembly of the second sliding rail. The structural design realizes the function of clamping and fixing the microcatheter and adjusting the position of the microcatheter, and effectively solves the problem that when the microcatheter moves or slips, it may rub against the surrounding tissues or blood vessels, causing the catheter to be damaged to varying degrees, thereby affecting the operation.

[0014] 2. The retractable microcatheter clamping device described in the utility model can lift the tube pressing plate when the microcatheter needs to be clamped and fixed, and then place the microcatheter in the internal position of the fixing groove. The tube pressing plate is then pushed and fixed by a spring, thereby realizing the function of fixing the microcatheter and making the microcatheter more stable when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the second sliding rail in the utility model;

[0018] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0019] Figure 4 It is a cross-sectional view of the support rod in the utility model;

[0020] Figure 5 It is a partial structural schematic diagram of the threaded rod in the utility model.

[0021] In the figure: 1. first sliding rail; 2. first sliding seat; 3. second sliding rail; 4. second sliding seat; 5. support rod; 6. fixed frame; 7. tube pressing plate; 8. fixed groove; 9. first locking block; 10. pressing block; 11. driving motor; 12. threaded rod; 13. second locking block; 14. guide rod; 15. positioning block; 16. anti-wear ball. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Specific examples are given below.

[0024] like Figure 1 to Figure 2As shown, a retractable microcatheter clamping device described in an embodiment of the utility model comprises a first sliding rail 1; two first sliding rails 1 are symmetrically arranged; a first sliding seat 2 is slidably connected inside the first sliding rail 1, and a second sliding rail 3 is fixedly connected between the two first sliding seats 2; a clamping assembly is arranged inside the second sliding rail 3; during operation, when the microcatheter needs to be clamped, the first sliding rail 1 can be fixed at the boundary position of the operating bed, and then the first sliding seat 2 is inserted into the inside of the first sliding rail 1, so that the second sliding rail 3 is erected at the position corresponding to the top of the patient, and then the microcatheter can be clamped by the clamping assembly, making the use of the microcatheter more convenient, and after the microcatheter is clamped, the position of the clamping assembly can be adjusted by sliding the clamping assembly inside the second sliding rail 3, thereby making the position adjustment of the microcatheter more convenient.

[0025] like Figure 2 and Figure 4 As shown, the clamping assembly includes a second sliding seat 4; the second sliding seat 4 is slidably connected to the inner position of the second sliding rail 3; a support rod 5 is fixedly connected to the top of the second sliding seat 4; a fixed frame 6 is fixedly connected to the top of the support rod 5; a tube pressing plate 7 is slidably connected inside the fixed frame 6; a spring is fixedly connected between the top of the tube pressing plate 7 and the inner side wall of the fixed frame 6; a fixing groove 8 is provided between the fixed frame 6 and the tube pressing plate 7; a first locking block 9 is slidably connected inside the second sliding seat 4; a spring is fixedly connected between the side wall of the first locking block 9 and the inner side wall of the second sliding seat 4; a pressing block 10 is fixedly connected to the top of the first locking block 9; during work, when it is necessary to clamp the microcatheter When fixing, the tube pressing plate 7 can be lifted and the microcatheter can be placed in the internal position of the fixing groove 8. The tube pressing plate 7 can then be pushed by the spring to fix the microcatheter. At the same time, when the position of the second sliding seat 4 needs to be adjusted, the two pressing blocks 10 can be pressed at the same time to retract the first locking block 9 into the interior of the second sliding seat 4, so that the first locking block 9 can be separated from the side wall of the second sliding rail 3. When the position of the second sliding seat 4 is adjusted, the pressing block 10 can be loosened to allow the spring to push the first locking block 9, so that the side wall of the first locking block 9 is squeezed against the side wall of the second sliding rail 3, and the second sliding seat 4 can be fixed, making the second sliding seat 4 more stable after the position adjustment is completed.

[0026] like Figure 3 and Figure 5As shown, a driving motor 11 is fixedly connected to the side wall of the first sliding seat 2; a threaded rod 12 is fixedly connected to the output end of the driving motor 11; the threads on the surface of the threaded rod 12 are symmetrically arranged along the center line of the threaded rod 12; two second locking blocks 13 are slidably connected to the inside of the first sliding seat 2, and the two second locking blocks 13 are symmetrically arranged inside the first sliding seat 2 along the center line of the threaded rod 12; the second locking block 13 is threadedly connected to the threaded rod 12; during operation, when the position of the first sliding seat 2 is adjusted, the driving motor 11 can be controlled to drive the threaded rod 12 to rotate, so that the second locking block 13 cooperates with the thread of the threaded rod 12, and then the second locking block 13 moves to the outside of the first sliding seat 2, so that the second locking block 13 can be squeezed with the side wall of the first sliding rail 1, so that the first sliding seat 2 can be fixed, so that the position of the first sliding seat 2 can be made more stable after adjustment, so that the clamping effect of the microcatheter is better.

[0027] like Figures 2 to 3 As shown, a guide rod 14 is fixedly connected to the inside of the first sliding seat 2; the guide rod 14 is arranged parallel to the threaded rod 12; the second locking block 13 is slidably connected to the guide rod 14; during operation, when the second locking block 13 slides inside the first sliding seat 2, the sliding of the second locking block 13 is restricted by the guide rod 14, which can make the second locking block 13 less likely to tilt during the sliding process, making the sliding of the second locking block 13 more stable.

[0028] like Figure 5 As shown, a positioning block 15 is fixedly connected to the threaded rod 12; the positioning block 15 is rotatably connected to the internal position of the first sliding seat 2; during operation, when the threaded rod 12 rotates inside the first sliding seat 2, the rotation of the positioning block 15 is restricted by the first sliding seat 2, so that the threaded rod 12 is less likely to tilt during the rotation process, making the rotation of the threaded rod 12 more stable.

[0029] like Figure 5 As shown, a plurality of positioning blocks 15 are provided between the first sliding seat 2 and the positioning block 15; the side walls of the positioning blocks 15 are in contact with the side walls of the anti-wear balls 16; during operation, when the positioning blocks 15 rotate inside the first sliding seat 2, by providing the anti-wear balls 16 between the first sliding seat 2 and the positioning blocks 15, the sliding friction between the first sliding seat 2 and the positioning blocks 15 can be converted into rolling friction, so that the friction force between the first sliding seat 2 and the positioning blocks 15 is smaller, thereby reducing the wear between the first sliding seat 2 and the positioning blocks 15.

[0030] During operation, when the microcatheter needs to be clamped, the first sliding rail 1 can be fixed at the boundary position of the operating bed, and then the first sliding seat 2 can be inserted into the inside of the first sliding rail 1, so that the second sliding rail 3 is set up at the position corresponding to the top of the patient. Then, the microcatheter can be clamped by the clamping assembly, making the use of the microcatheter more convenient. After the microcatheter is clamped, the position of the clamping assembly can be adjusted by sliding the clamping assembly inside the second sliding rail 3, thereby making it more convenient to adjust the position of the microcatheter.

[0031] When the microcatheter needs to be clamped and fixed, the tube pressing plate 7 can be lifted and the microcatheter can be placed in the internal position of the fixing groove 8. The tube pressing plate 7 can then be pushed by the spring to fix the microcatheter. At the same time, when the position of the second sliding seat 4 needs to be adjusted, the two pressing blocks 10 can be pressed at the same time to retract the first locking block 9 into the second sliding seat 4, so that the first locking block 9 can be separated from the side wall of the second sliding rail 3. When the position of the second sliding seat 4 is adjusted, the pressing block 10 can be loosened to allow the spring to push the first locking block 9, so that the side wall of the first locking block 9 is squeezed against the side wall of the second sliding rail 3, and the second sliding seat 4 can be fixed, making the second sliding seat 4 more stable after the position adjustment is completed.

[0032] When the position of the first sliding seat 2 is adjusted, the driving motor 11 can be controlled to drive the threaded rod 12 to rotate, so that the second locking block 13 cooperates with the thread of the threaded rod 12, and then the second locking block 13 moves to the outside of the first sliding seat 2, so that the second locking block 13 can be squeezed against the side wall of the first sliding rail 1, and the first sliding seat 2 can be fixed, so that the first sliding seat 2 can be made more stable after the position adjustment is completed, so that the clamping effect of the microcatheter is better.

[0033] When the second locking block 13 slides inside the first sliding seat 2, the sliding of the second locking block 13 is limited by the guide rod 14, so that the second locking block 13 is less likely to tilt during the sliding process, making the sliding of the second locking block 13 more stable.

[0034] When the threaded rod 12 rotates inside the first sliding seat 2, the first sliding seat 2 limits the rotation of the positioning block 15, so that the threaded rod 12 is less likely to tilt during the rotation, making the rotation of the threaded rod 12 more stable.

[0035] When the positioning block 15 rotates inside the first sliding seat 2, by arranging the anti-wear ball 16 between the first sliding seat 2 and the positioning block 15, the sliding friction between the first sliding seat 2 and the positioning block 15 can be changed into rolling friction, so that the friction force between the first sliding seat 2 and the positioning block 15 is smaller, thereby reducing the wear between the first sliding seat 2 and the positioning block 15.

[0036] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A retractable microcatheter clamping device, characterized in that: The invention comprises a first sliding rail (1); two first sliding rails (1) are symmetrically arranged; a first sliding seat (2) is slidably connected inside the first sliding rail (1), and a second sliding rail (3) is fixedly connected between the two first sliding seats (2); a clamping assembly is arranged inside the second sliding rail (3).

2. A retractable micro-catheter clamping device according to claim 1, characterized in that: The clamping assembly comprises a second sliding seat (4); the second sliding seat (4) is slidably connected to an inner position of the second sliding rail (3); a support rod (5) is fixedly connected to the top of the second sliding seat (4); a fixed frame (6) is fixedly connected to the top of the support rod (5); a tube pressing plate (7) is slidably connected inside the fixed frame (6); a spring is fixedly connected between the top of the tube pressing plate (7) and the inner side wall of the fixed frame (6); a fixing groove (8) is provided between the fixed frame (6) and the tube pressing plate (7); a first locking block (9) is slidably connected inside the second sliding seat (4); a spring is fixedly connected between the side wall of the first locking block (9) and the inner side wall of the second sliding seat (4); a pressing block (10) is fixedly connected to the top of the first locking block (9).

3. A retractable micro-catheter clamping device according to claim 2, characterized in that: A driving motor (11) is fixedly connected to the side wall of the first sliding seat (2); a threaded rod (12) is fixedly connected to the output end of the driving motor (11); the threads on the surface of the threaded rod (12) are symmetrically arranged along the center line of the threaded rod (12); two second locking blocks (13) are slidably connected inside the first sliding seat (2), and the two second locking blocks (13) are symmetrically arranged inside the first sliding seat (2) along the center line of the threaded rod (12); the second locking block (13) is threadedly connected to the threaded rod (12).

4. The retractable micro-catheter clamping device according to claim 3, characterized in that: A guide rod (14) is fixedly connected inside the first sliding seat (2); the guide rod (14) is arranged parallel to the threaded rod (12); and the second locking block (13) is slidably connected to the guide rod (14).

5. The retractable micro-catheter clamping device according to claim 4, characterized in that: A positioning block (15) is fixedly connected to the threaded rod (12); the positioning block (15) is rotatably connected to an inner position of the first sliding seat (2).

6. The retractable micro-catheter clamping device according to claim 5, characterized in that: A plurality of positioning blocks (15) are provided between the first sliding seat (2) and the positioning block (15); the side walls of the positioning blocks (15) are in contact with the side walls of the anti-wear balls (16).

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