Antibacterial interventional medical device

Abstract

The application discloses an antibacterial interventional medical instrument and relates to the technical field of medical instruments. The antibacterial interventional medical instrument comprises a handle shell, the outer side of the handle shell is provided with an antibacterial coating, and the bottom of the handle shell is provided with a puncture needle body; and a protective cover is assembled on the outer side of the handle shell through the inner wall of the protective cover being provided with threads. The antibacterial interventional medical instrument adopts the protective cover sleeved on the outer side of the puncture needle body to protect the puncture needle body, and when the puncture needle body needs to be used, the puncture needle body can be quickly stretched out from the protective cover by pushing the operating block one, cooperating with the fixed bin, the spring one, the sliding block, the fixed groove one, the spring two, the extrusion block one, the rotating shaft, the cover plate, the hydraulic bin one, the operating block one, the arc-shaped rod and the stress plate. At this time, the protective cover is not separated from the device, the antibacterial effect of the device is improved, and the device is more convenient to use.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an antibacterial interventional medical device. Background Technology

[0002] Antimicrobial interventional medical devices are those designed and manufactured with the addition or integration of antimicrobial materials or coatings to reduce or prevent infections caused by bacteria, fungi, and other microorganisms. Interventional medical devices, such as catheters, stents, guidewires, and artificial joints, are commonly used in diagnostic and therapeutic procedures. During these procedures, they come into contact with the patient's tissues and fluids, making them potential vectors for bacterial infection. Therefore, the research and application of antimicrobial interventional medical devices play a crucial role in reducing hospital-acquired infections and improving patient treatment outcomes.

[0003] Chinese Patent CN117462188B, authorized and published on March 29, 2024, discloses an interventional medical device, which includes a handle housing, a catheter extending distally from the handle housing, an actuating element extending through the catheter, an actuation controller, and an actuator. The actuating element has a proximal portion and a distal portion. The actuation controller includes a first control member, a second control member, and a buffer member located between the first control member and the second control member. The first control member is coupled to the handle housing, and the proximal portion of the actuating element is engaged with the second control member.

[0004] The aforementioned application documents describe an overload protection mechanism to prevent overload from damaging tissues or the interventional medical device. However, when the device is in use, the catheter extending from the handle housing to the distal end is directly exposed to the outside, resulting in poor antibacterial effect. When using a corresponding threaded protective sleeve, the protective sleeve is easily lost because it separates from the device after being removed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an antibacterial interventional medical device, solving the problems mentioned in the background section. To achieve the above objectives, this invention provides the following technical solution: an antibacterial interventional medical device, comprising:

[0006] The handle housing has an antibacterial coating on its outer side, and the bottom of the handle housing is fitted with a puncture needle body;

[0007] A protective cover, the inner wall of which is threaded onto the outer side of the handle housing, and a puncture needle passage groove is provided at the bottom of the protective cover;

[0008] A fixing chamber is fixedly connected to the outer side of the protective cover. A sliding block is connected to the inner wall of the fixing chamber via a spring. A through-hole fixing groove is formed inside the sliding block. A squeezing block is connected to the inner wall of the fixing groove via a spring. A through-hole rotating shaft is rotatably connected to the bottom of the protective cover. A transmission component is assembled between the squeezing block and the rotating shaft. A cover plate is fixedly connected to the bottom of the rotating shaft. An auxiliary anti-slip component is assembled inside the handle housing to prevent slippage. A disinfection component for disinfecting the puncture needle body is assembled inside the protective cover. With this device design, the puncture needle body can be quickly extended from inside the protective cover without the cover separating from the device, improving the antibacterial effect and making the device easier to use.

[0009] Preferably, the transmission component includes a hydraulic chamber 1 mounted on the outside of the protective cover. One end of the hydraulic chamber 1 is slidably connected to an operating block 1 via a piston. The other end of the hydraulic chamber 1 is slidably connected to an arc-shaped rod via a piston. A force-bearing plate is fixedly connected to the side of the rotating shaft. A through fixing groove 2 is opened inside the sliding block. A compression block 2 is connected to the inner wall of the fixing groove 2 via a spring 3. An operating block 2 is fixedly connected to the side of the compression block 2.

[0010] Preferably, when the device is not in use, the cover plate is located at the bottom of the puncture needle passage groove and is in a closed state of the puncture needle passage groove.

[0011] Preferably, the operating block is located on the side of the extrusion block and is fixed to the extrusion block.

[0012] Preferably, the force-bearing plate is located on the side of the arc-shaped rod and is fixed to the arc-shaped rod.

[0013] Preferably, the auxiliary anti-slip component includes anti-slip pads mounted on both sides of the handle housing, a hydraulic chamber two mounted on the side of the protective cover, a transmission rod one slidably connected to one side of the hydraulic chamber two via a piston, a hose mounted on the other side of the hydraulic chamber two, a through hydraulic chamber three mounted inside the handle housing, a limiting block slidably connected to the top of the hydraulic chamber three via a piston, a fixing plate fixedly connected to the inner wall of the handle housing, and a top block connected to the side of the fixing plate via a spring four. By using the auxiliary anti-slip component, an additional force is applied to the anti-slip pads, and at this time, the user's hand is gripping the handle housing, thereby increasing the friction between the anti-slip pads and the hand, further reducing the possibility of the device accidentally falling.

[0014] Preferably, the transmission rod is located on the side of the operating block and is fixed to the operating block.

[0015] Preferably, the bottom of the top block has a groove, and when the auxiliary anti-slip component is not activated, the limiting block is located in the groove.

[0016] Preferably, the disinfection assembly includes a hydraulic chamber four, and a transmission rod two is slidably connected to the side of the hydraulic chamber four via a piston. One end of the transmission rod two is fitted with a spring five, and the other end is fitted with a cleaning plate coated with medical alcohol. The use of this disinfection assembly further improves the antibacterial effect of the puncture needle body.

[0017] Preferably, the fourth hydraulic chamber is located on the side of the first hydraulic chamber and is connected to the first hydraulic chamber.

[0018] This invention provides an antibacterial interventional medical device. It has the following beneficial effects:

[0019] (1) This antibacterial interventional medical device protects the puncture needle body by using a protective cover that covers the outside of the puncture needle body. When the puncture needle body needs to be used, the puncture needle body can be quickly extended from the protective cover by pushing the operating block one, which works in conjunction with the fixing chamber, spring one, sliding block, fixing groove one, spring two, squeezing block one, rotating shaft, cover plate, hydraulic chamber one, operating block one, arc rod and force plate. At this time, the protective cover is not separated from the device, which improves the antibacterial effect of the device and makes the device easier to use.

[0020] (2) When the operating block moves to the side, the transmission rod moves to the side. In conjunction with the hydraulic chamber 2, hose, hydraulic chamber 3, limiting block, fixing plate, spring 4 and top block, an additional force is applied to the anti-slip pad. At this time, the user's hand is in a state of gripping the handle housing, thereby increasing the friction between the anti-slip pad and the hand and further reducing the possibility of the device being accidentally dropped.

[0021] (3) When the oil in the hydraulic chamber 1 is squeezed and moves, some of the oil flows into the hydraulic chamber 4 connected to it, which drives the transmission rod 2 to move to the side, so that the transmission rod 2 drives the cleaning plate to move. At this time, the cleaning plate moves to the side position of the puncture needle body. When the puncture needle body is extended, the cleaning plate can rotate and coat the puncture needle body with the movement of the protective cover, which further improves the antibacterial effect of the puncture needle body. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of some parts of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of the present invention;

[0024] Figure 3 This is a three-dimensional structural diagram of some parts of the present invention;

[0025] Figure 4 This is a three-dimensional structural diagram of some parts of the present invention;

[0026] Figure 5 This is a three-dimensional structural diagram of the auxiliary anti-slip component of the present invention;

[0027] Figure 6 This is a three-dimensional structural diagram of some parts of the auxiliary anti-slip component of the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the disinfection component of the present invention;

[0029] Figure 8 This is a three-dimensional structural diagram of some parts of the disinfection component of the present invention.

[0030] In the picture:

[0031] 100. Handle housing; 200. Puncture needle body; 300. Protective cover; 400. Puncture needle passage groove; 501. Fixing chamber; 502. Spring 1; 503. Sliding block; 504. Fixing groove 1; 505. Spring 2; 506. Compression block 1; 507. Rotating shaft; 508. Cover plate; 509. Hydraulic chamber 1; 510. Operating block 1; 511. Arc rod; 512. Force plate; 513. Fixing groove 2; 514. Spring 3; 515. Compression block 2; 516. Operating block 2;

[0032] 600. Auxiliary anti-slip components; 601. Hydraulic chamber two; 602. Transmission rod one; 603. Hoses; 604. Hydraulic chamber three; 605. Limiting block; 606. Fixing plate; 607. Spring four; 608. Top block; 609. Anti-slip mat;

[0033] 700. Disinfection component; 701. Hydraulic chamber four; 702. Transmission rod two; 703. Spring five; 704. Cleaning plate. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Example 1, please refer to Figures 1-4 An antibacterial interventional medical device, comprising:

[0036] The handle housing 100 has an antibacterial coating on its outer side, and the bottom of the handle housing 100 is fitted with a puncture needle body 200.

[0037] The protective cover 300 has its inner wall threaded onto the outer side of the handle housing 100, and the bottom of the protective cover 300 has a puncture needle passage groove 400.

[0038] A fixed chamber 501 is fixedly connected to the outer side of the protective cover 300. A sliding block 503 is connected to the inner wall of the fixed chamber 501 by a spring 502. A through fixed groove 504 is opened inside the sliding block 503. A pressing block 506 is connected to the inner wall of the fixed groove 504 by a spring 505. A through rotating shaft 507 is rotatably connected to the bottom of the protective cover 300. A transmission component for transmission is assembled between the pressing block 506 and the rotating shaft 507. The transmission component includes a hydraulic chamber 509 assembled on the outer side of the protective cover 300. An operating block 510 is slidably connected to one end of the hydraulic chamber 509 by a piston. The operating block 510 is located on the side of the pressing block 506 and is fixed to the pressing block 506. When the operating block 510 is manually pushed towards the side closest to the hydraulic chamber 509, the operating block 510 moves the pressing block 506, which is fixedly connected to it, to the side. This causes the pressing block 506 to compress the spring 505 and move into the fixing groove 504. Because the bottom of the pressing block 506 is inclined, the pressing block 506 moves while simultaneously causing the sliding block 503 to move downward. At this time, the sliding block 503 stretches the spring 502 and moves downward a certain distance, and the pressing block 506 moves downward with the operation. When block 510 moves to its limit distance, the squeezing block 506 is exactly located at the bottom notch of the fixed groove 504, causing the sliding block 503 to lose the restriction of the squeezing block 506 and reset under the action of the spring 502, thereby locking the squeezing block 506 at the notch of the fixed groove 504. Similarly, the operating block 510, which is fixedly connected to the squeezing block 506, is restricted to the state after the movement. As the operating block 510 moves, the oil in the hydraulic chamber 509, which is slidably connected to it through the piston, can be squeezed.

[0039] The other end of the hydraulic chamber 509 is slidably connected to an arc-shaped rod 511 via a piston. A force-bearing plate 512 is fixedly connected to the side of the rotating shaft 507. The force-bearing plate 512 is located on the side of the arc-shaped rod 511 and is fixed to the arc-shaped rod 511. When the oil in the hydraulic chamber 509 is compressed, it moves towards the side closer to the arc-shaped rod 511, causing the rod to move. This causes the rod to rotate the force plate 512, which is fixedly connected to it. The force plate 512 then rotates the shaft 507, which is fixedly connected to it. The shaft 507 then rotates the cover plate 508, which is fixedly connected to it. This opens the puncture needle through the groove 400, which was originally closed by the cover plate 508. Then, by rotating the protective cover 300, it moves towards the handle housing 100, allowing the puncture needle body 200, which is mounted at the bottom of the handle housing 100, to pass through the puncture needle through the groove 400 and extend from the protective cover 300. In this way, the puncture needle body 200 can be quickly extended from the protective cover 300 without separating from the device. This improves the antibacterial effect of the device and makes it easier to use.

[0040] The sliding block 503 has a through fixed groove 513 inside. The inner wall of the fixed groove 513 is connected to the compression block 515 by a spring 514. The side of the compression block 515 is fixedly connected to the operating block 516. The bottom of the rotating shaft 507 is fixedly connected to the cover plate 508. When the device is not in use, the cover plate 508 is located at the bottom of the puncture needle passage groove 400 and is in a closed state. After using the device, to reset it, rotate the protective cover 300 in the opposite direction to retract the puncture needle body 200 back into the protective cover 300. Then, manually move the second operating block 516 to the side to move the second squeezing block 515, which is fixedly connected to the second operating block 516, to the side. At this time, the second squeezing block 515 compresses the third spring 514 and moves into the second fixing groove 513. The bottom of the second squeezing block 515 is in an inclined state, which can drive the sliding block 503 to move downward. As the sliding block 503 moves downward, the first squeezing block 506 can move out of the bottom notch in the first fixing groove 504. The first squeezing block 506 is no longer restricted by the notch and can be reset under the action of the second spring 505, so that the cover plate 508 is reset and the puncture needle passage groove 400 is resealed. Then, release the second operating block 516 so that the second operating block 516 and the second squeezing block 515 are reset under the action of the third spring 514, so as to facilitate the next use of the device.

[0041] In use, manually push the operating block 510 towards the side closest to the hydraulic chamber 509. The operating block 510 then moves the compression block 506, which is fixedly connected to it, to the side. This causes the compression block 506 to compress the spring 505 and move into the fixing groove 504. Because the bottom of the compression block 506 is inclined, its movement causes the sliding block 503 to move downwards. The sliding block 503 then stretches the spring 502 and moves downwards a certain distance. When the compression block 506 reaches its maximum distance with the operating block 510, it is precisely positioned at the bottom notch of the fixing groove 504, allowing the sliding block to... When the moving block 503 is no longer restrained by the pressing block 506, it resets under the action of the spring 502, thereby locking the pressing block 506 into the notch of the fixing groove 504. Similarly, the operating block 510, which is fixedly connected to the pressing block 506, is restricted to its moved state. As the operating block 510 moves, it can squeeze the oil in the hydraulic chamber 509, which is slidably connected to it via a piston, causing the oil to move towards the side closer to the arc-shaped rod 511. This causes the arc-shaped rod 511 to move, which in turn causes the force plate 512, which is fixedly connected to it, to rotate. The force plate 512 then causes the rotating shaft 507, which is fixedly connected to it, to rotate, causing the rotating shaft 507 to... The cover plate 508, which is fixedly connected to it, is rotated to open the puncture needle through the groove 400, which was originally closed by the cover plate 508. Then, by rotating the protective cover 300, the protective cover 300 moves towards the handle housing 100 while rotating, thereby allowing the puncture needle body 200, which is assembled at the bottom of the handle housing 100, to pass through the puncture needle through the groove 400 and extend out from the protective cover 300. After the device is used, in order to reset the device, the puncture needle body 200 is retracted into the protective cover 300 by rotating the protective cover 300 in the opposite direction. Then, by manually moving the second operating block 516 to the side, the second compression block 516, which is fixedly connected to the second operating block 516, is driven. 15 moves to the side. At this time, the second extrusion block 515 compresses the third spring 514 and moves into the second fixing groove 513. The bottom of the second extrusion block 515 is tilted, which can drive the sliding block 503 to move downward. As the sliding block 503 moves downward, the first extrusion block 506 can move out of the bottom notch in the first fixing groove 504. The first extrusion block 506 is no longer restricted by the notch and can be reset under the action of the second spring 505, so that the cover plate 508 can be reset and the puncture needle passage groove 400 can be resealed. Then, the second operation block 516 is released, so that the second operation block 516 and the second extrusion block 515 can be reset under the action of the third spring 514.

[0042] Example 2, please refer to Figures 1-6Based on Embodiment 1, the handle housing 100 is equipped with an auxiliary anti-slip component 600 to prevent slippage. The auxiliary anti-slip component 600 includes anti-slip pads 609 mounted on both sides of the handle housing 100. A hydraulic chamber 2 601 is mounted on the side of the protective cover 300. A transmission rod 1 602 is slidably connected to one side of the hydraulic chamber 2 601 via a piston. The transmission rod 1 602 is located on the side of the operating block 1 510 and is fixed to the operating block 1 510. A hose 603 is mounted on the other side of the hydraulic chamber 2 601. When the operating block 510 moves to the side, it drives the transmission rod 602, which is fixedly connected to it, to move to the side. Since the hydraulic chamber 601 and the transmission rod 602 are connected by a piston, the oil in the hydraulic chamber 601 is drawn out by the transmission rod 602 as the transmission rod moves, and the pressure in the hydraulic chamber 601 decreases accordingly. This causes the oil in the hose 603 connected to the hydraulic chamber 601 to flow into the hydraulic chamber 601.

[0043] The handle housing 100 is equipped with a through hydraulic chamber 3 604. The top of the hydraulic chamber 3 604 is slidably connected to a limiting block 605 via a piston. The inner wall of the handle housing 100 is fixedly connected to a fixing plate 606. The side of the fixing plate 606 is connected to a top block 608 via a spring 4 607. The bottom of the top block 608 has a groove. When the auxiliary anti-slip component 600 is not activated, the limiting block 605 is located in the groove. When the oil in the hose 603 flows into the hydraulic chamber 2 601, and the other end of the hose 603 is connected to the hydraulic chamber 3 604, the oil in the hydraulic chamber 3 604 flows into the hose 603, thereby causing the limiting block 605, which is slidably connected to the hydraulic chamber 3 604 via a piston, to move downward. The limiting block 605 then moves out of the bottom groove of the top block 608, thereby removing the restriction on the top block 608. Under the action of the spring 4 607, the top block 608 moves to the side, applying an additional force to the anti-slip pad 609. At this time, the user's hand is gripping the handle housing 100, thereby increasing the friction between the anti-slip pad 609 and the hand, further reducing the possibility of the device being accidentally dropped.

[0044] In use, based on Embodiment 1, when the operating block 510 moves to the side, it drives the transmission rod 602, which is fixedly connected to it, to move to the side. Since the hydraulic chamber 601 and the transmission rod 602 are connected by a piston, the oil in the hydraulic chamber 601 is drawn away by the transmission rod 602 as it moves, reducing the pressure inside the hydraulic chamber 601. This causes the oil in the hose 603, which is connected to the hydraulic chamber 601, to flow into the hydraulic chamber 601. The other end of the hose 603 is connected to the hydraulic... When the hydraulic chamber 604 is connected, the oil in the hydraulic chamber 604 flows into the hose 603, which in turn moves the limiting block 605, which is connected to the hydraulic chamber 604 via a piston, downward. The limiting block 605 then moves out of the bottom groove of the top block 608, thereby removing the restriction on the top block 608. Under the action of the spring 607, the top block 608 moves to the side, applying an additional force to the anti-slip pad 609. At this time, the user's hand is gripping the handle housing 100, thereby increasing the friction between the anti-slip pad 609 and the hand.

[0045] Example 3, please refer to Figures 1-8 Based on Embodiments 1 and 2, the protective cover 300 is equipped with a disinfection component 700 for disinfecting the puncture needle body 200. The disinfection component 700 includes a hydraulic chamber 4 701, which is located on the side of hydraulic chamber 1 509 and communicates with it. A transmission rod 2 702 is slidably connected to the side of hydraulic chamber 4 701 via a piston. When the oil in hydraulic chamber 1 509 is squeezed and moves, some of the oil flows into hydraulic chamber 4 701, causing the oil originally stored in hydraulic chamber 4 701 to move due to the squeeze. The oil then moves towards the side closer to transmission rod 2 702, driving transmission rod 2 702, which is slidably connected to hydraulic chamber 4 701 via a piston, to move to the side.

[0046] One end of the transmission rod 702 is equipped with a spring 703, and the other end is equipped with a cleaning plate 704 coated with medical alcohol. When the transmission rod 702 moves to the side, it causes the cleaning plate 704, which is fixedly connected to it and coated with medical alcohol, to move as well. At this time, the cleaning plate 704 moves to the side of the puncture needle body 200. When the puncture needle body 200 is extended, the cleaning plate 704 can rotate and coat the puncture needle body 200 along with the movement of the protective cover 300, further improving the antibacterial effect of the puncture needle body 200.

[0047] In use, based on Embodiment 1 and Embodiment 2, when the oil in hydraulic chamber 1 509 is squeezed and moves, some of the oil flows into hydraulic chamber 4 701 connected to it. This causes the oil originally stored in hydraulic chamber 4 701 to move due to the squeeze, and the oil moves towards the side closer to transmission rod 2 702. This drives transmission rod 2 702, which is slidably connected to hydraulic chamber 4 701 via a piston, to move to the side. This causes transmission rod 2 702 to move the cleaning plate 704, which is fixedly connected to it and has its surface coated with medical alcohol. At this time, the cleaning plate 704 with its surface coated with medical alcohol moves to the side position of the puncture needle body 200. When the puncture needle body 200 is extended, the cleaning plate 704 can rotate and coat the puncture needle body 200 as the protective cover 300 moves.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An antibacterial interventional medical device, characterized in that, include: The handle housing has an antibacterial coating on its outer side, and the bottom of the handle housing is fitted with a puncture needle body; A protective cover, the inner wall of which is threaded onto the outer side of the handle housing, and a puncture needle passage groove is provided at the bottom of the protective cover; A fixing chamber is fixedly connected to the outer side of the protective cover. A sliding block is connected to the inner wall of the fixing chamber via a spring. A through fixing groove is opened inside the sliding block. A squeezing block is connected to the inner wall of the fixing groove via a spring. A through rotating shaft is rotatably connected to the bottom of the protective cover. A transmission component for transmission is assembled between the squeezing block and the rotating shaft. A cover plate is fixedly connected to the bottom of the rotating shaft. An auxiliary anti-slip component for preventing slippage is assembled inside the handle housing. A disinfection component for disinfecting the puncture needle body is assembled inside the protective cover. The transmission component includes a hydraulic chamber 1 mounted on the outside of the protective cover. One end of the hydraulic chamber 1 is slidably connected to an operating block 1 via a piston. The other end of the hydraulic chamber 1 is slidably connected to an arc-shaped rod via a piston. A force-bearing plate is fixedly connected to the side of the rotating shaft. A through-hole fixing groove 2 is opened inside the sliding block. A compression block 2 is connected to the inner wall of the fixing groove 2 via a spring 3. An operating block 2 is fixedly connected to the side of the compression block 2. The auxiliary anti-slip assembly includes anti-slip pads mounted on both sides of the handle housing. A hydraulic chamber two is mounted on the side of the protective cover. A transmission rod one is slidably connected to one side of the hydraulic chamber two via a piston. A hose is mounted on the other side of the hydraulic chamber two. A through hydraulic chamber three is mounted inside the handle housing. A limiting block is slidably connected to the top of the hydraulic chamber three via a piston. A fixing plate is fixedly connected to the inner wall of the handle housing. A top block is connected to the side of the fixing plate via a spring four. The transmission rod one is located on the side of the operating block one and is fixed to the operating block one.

2. The antibacterial interventional medical device according to claim 1, characterized in that: When the device is not in use, the cover plate is located at the bottom of the puncture needle passage groove and is in a closed state.

3. The antibacterial interventional medical device according to claim 1, characterized in that: The first operating block is located on the side of the first extrusion block and is fixed to the first extrusion block.

4. The antibacterial interventional medical device according to claim 1, characterized in that: The force-bearing plate is located on the side of the arc-shaped rod and is fixed to the arc-shaped rod.

5. The antibacterial interventional medical device according to claim 1, characterized in that: The bottom of the top block has a groove, and when the auxiliary anti-slip component is not activated, the limiting block is located in the groove.

6. The antibacterial interventional medical device according to claim 1, characterized in that: The disinfection assembly includes a hydraulic chamber four, and a transmission rod two is slidably connected to the side of the hydraulic chamber four via a piston. One end of the transmission rod two is equipped with a spring five, and the other end of the transmission rod two is equipped with a cleaning plate with a surface coated with medical alcohol.

7. An antibacterial interventional medical device according to claim 6, characterized in that: The fourth hydraulic chamber is located on the side of the first hydraulic chamber and is connected to the first hydraulic chamber.

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