A medical interventional device

Abstract

The application discloses a medical intervention device and relates to the technical field of interventional medical devices, which comprises a main blood vessel sample, a hand-held rod and a guide wire sample. The right side of the main blood vessel sample is provided with a precise rotating assembly. The precise rotating assembly comprises a rotating cylinder. The inside of the rotating cylinder is rotationally connected to the side wall of the hand-held rod. The arrangement of the precise rotating assembly can avoid the situation that a traditional medical staff directly pinches the tail end of the guide wire sample to rotate. Thus, the situation that the diameter of the guide wire sample is very small and the medical staff cannot accurately rotate the guide wire sample by hand is avoided. The medical staff needs to repeatedly rotate back and forth when the guide wire sample needs to turn, which is reduced. The precise rotation of the rotating cylinder enables the guide wire sample to also accurately rotate by five degrees each time. The medical staff can rotate according to the developing position of the tip of the guide wire sample in the image.

Description

Technical Field

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

[0002] In interventional medical techniques, guidewires, as thin metal wires made of materials such as nickel-titanium alloys and stainless steel, possess both rigidity and flexibility. Their core value lies in providing "path guidance" and "support positioning" for interventional devices such as catheters and stents. This is because natural cavities in the human body, such as blood vessels, bile ducts, and ureters, often have tortuous, narrow, or branching structures. Directly pushing instruments can easily lead to directional deviations, excessive resistance, or failure to reach the target location, or even cause tissue damage. Guidewires, due to their maneuverability (such as end shaping and torque transmission), can traverse complex paths first, and their diameter is usually much smaller than that of catheters, allowing them to reach the lesion site (such as vascular stenosis or tumor-feeding vessels) before the catheter. After confirming the location using fluoroscopic imaging (such as DSA), the guidewire can then be used to guide the device. Guidewires guide subsequent instruments, avoiding blind contact with normal tissue and reducing the risk of bleeding and perforation. Their physical properties (such as hardness, coating, and tip shape) can be customized according to the characteristics of the lesion to meet different treatment needs. Guidewires have a wide range of applications, covering cardiovascular interventional procedures (such as PCI for coronary heart disease, electrophysiological examination of arrhythmias, and stent treatment for peripheral vascular diseases), neurointerventional procedures (such as cerebral aneurysm embolization and thrombectomy for acute ischemic stroke), non-vascular interventional procedures (such as ERCP in gastroenterology, ureteroscopy in urology, and local drug infusion in oncology), as well as other scenarios such as dialysis access establishment and congenital heart disease closure. They are the key instruments for "threading the needle" in interventional procedures.

[0003] Chinese patent publication number CN221932828U discloses "a medical interventional device," which includes a guide plate disposed along the length of a guidewire. The rear edge of the guide plate is connected to the front end of the guidewire, and the two surfaces of the guide plate are a first guide surface and a second guide surface, respectively. An adjustment component is used to control the bending of the guide plate toward the first guide surface or the second guide surface. The pressure difference generated between the first guide surface and the second guide surface can cause the front end of the guidewire to bend. The bent portion of the front end of the guidewire allows the guidewire to enter a branch vessel from the main vessel, thereby ensuring the accuracy and safety of guiding the guidewire.

[0004] Similarly, comparing existing technologies and the aforementioned guidewire guiding devices, firstly, when medical personnel manually rotate the thin guidewire, due to its small diameter, it is difficult to uniformly control the gripping force of the fingers. Even slight force can lead to over-rotation, resulting in deviation from the preset path or requiring adjustment. Secondly, from the perspective of operational efficiency and reducing medical personnel fatigue, traditional manual guidewire rotation requires repeated fine-tuning of finger pressure and rotation amplitude to achieve the desired turn. This often involves multiple "trial-and-error" cycles to get the guidewire to turn as expected, not only prolonging the surgical procedure time but also requiring prolonged micromanagement, which can easily lead to finger muscle tension and fingertip fatigue, thus increasing the probability of operational errors. Thirdly, from the perspective of surgical safety and patient prognosis, the limited contact area between the fingers and the guidewire tip during traditional manual guidewire rotation makes it prone to sudden deviation of the guidewire tip due to slight hand tremors or slippage. In complex lesions such as vascular stenosis and calcification, such sudden deviation can cause endothelial abrasion, increasing the risk of thrombosis or vascular perforation.

[0005] Therefore, a medical intervention device is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a medical interventional device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a medical interventional device, including a main blood vessel example, a hand grip, and a guidewire example. A precision rotation assembly is provided on the right side of the main blood vessel example. The precision rotation assembly includes a rotating cylinder. The inside of the rotating cylinder is rotatably connected to the side wall of the hand grip. Multiple arc-shaped gears are fixedly connected to the inner side of the rotating cylinder. The multiple arc-shaped gears are arranged in a circular array with the center of the rotating cylinder as a reference. The number of multiple arc-shaped gears is set to seventy-two. The degree between each adjacent arc-shaped gear and the center of the rotating cylinder is five degrees. Two notches are provided on the hand grip. A rotating rod is rotatably connected inside each notch. A rotating arc-shaped block is fixedly connected to the outside of each rotating rod. A spring is fixedly connected inside each notch.

[0008] Each of the rotating arc blocks is fixedly connected to the side of the spring away from the grip bar. The outer arc surface of the rotating arc block is opposite in direction to the outer arc surface of each arc gear. The rotating arc block meshes with the gap between each two adjacent arc gears.

[0009] Furthermore, the side wall of the rotating cylinder is provided with an adapter guide assembly, which includes a first ring rotatably connected to the side wall of the rotating cylinder. A first connecting post is fixedly connected to the side wall of the rotating cylinder. A rotating rectangular block one is rotatably connected to the end of the first connecting post away from the rotating cylinder. A fixed rectangular block is fixedly connected to the outer side of the first ring. A rotating rectangular block two is rotatably connected to the side of the fixed rectangular block away from the rotating cylinder. A threaded rod is rotatably connected through the interior of the rotating rectangular block one. A handle is fixedly connected to the end of the threaded rod near the rotating rectangular block one.

[0010] Furthermore, the adapter guide assembly also includes three rotating pillars, each of which is rotatably connected to the side wall of the rotating cylinder. A connecting rod is fixedly connected to the outer side of each rotating pillar. A second ring is fixedly connected to the side of the first ring away from the rotating cylinder. Three second connecting pillars are rotatably connected through the interior of the second ring. A rectangular sliding sleeve is fixedly connected to the end of each second connecting pillar near the first ring. A fixed circular block is fixedly connected to the end of each connecting rod away from the rotating pillar. The fixed circular block is made of rubber.

[0011] Furthermore, the main blood vessel example is provided with secondary blood vessel example one and secondary blood vessel example two on the side away from the rotating cylinder, and the guidewire example is provided with a contrast marker inside the end away from the rotating cylinder.

[0012] Furthermore, the first connecting column is eccentrically arranged with the center of the rotating cylinder as a reference, and the outer side of the threaded rod is threadedly connected to the rotating rectangular block.

[0013] Furthermore, the three rotating columns are arranged in a circular array with the center of the rotating cylinder as a reference, and the three second connecting columns are arranged in a circular array with the center of the second ring as a reference.

[0014] Furthermore, each of the connecting rods is internally slidably adapted to the rectangular sliding sleeve.

[0015] Furthermore, both the accessory blood vessel example two and the accessory blood vessel example one are located on the movement path of the guidewire example.

[0016] Furthermore, the end of the guidewire example furthest from the main blood vessel example is located between the first and second rings, and the end of the guidewire example furthest from the main blood vessel example is located on the movement path of the three fixed circular blocks.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The precise rotation component design eliminates the need for medical personnel to manually rotate the guidewire sample by hand, a method common in traditional methods. This avoids the difficulty of precisely rotating the guidewire sample by hand due to its small diameter. It also reduces the need for repeated back-and-forth rotations when a turn is required. The precise rotation of the rotating cylinder allows the guidewire sample to rotate precisely by five degrees each time. Medical personnel can directly calculate the required turning angle based on the imaging position of the guidewire tip (e.g., a 30-degree turn requires only six operations). This design eliminates the need for repeated trial and error, significantly reducing ineffective procedures and shortening the time required for critical surgical steps. It also avoids fatigue caused by prolonged fine motor exertion in the hands, allowing medical staff to focus more on image observation and path determination, thus improving the overall smoothness of the surgical procedure. Furthermore, the design prevents the rotating cylinder from reversing and the fixed circular block from contacting the guidewire sample by rotating the arc block, eliminating the impact of hand tremors on the rotation of the guidewire sample. The uniform rotation of five degrees each time allows the tip of the guidewire sample to change direction smoothly, making the turning process of conforming to the main blood vessel sample gentler, reducing friction and impact on the endothelium of the main blood vessel sample, and lowering the probability of intraoperative complications.

[0019] By adapting the guide component and the precision rotation component to each other, it can first adapt to the resistance of guidewire samples with different radii. Thus, when medical staff hold the lever and push it forward, the resistance of the three fixed blocks can avoid the situation where the contact area between the fingers and the guidewire sample is too small and the gripping force is difficult to distribute evenly. This reduces the occurrence of guidewire sample deviation caused by finger tremors. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a three-dimensional schematic diagram of the relationship between accessory blood vessel example one and accessory blood vessel example two of the present invention;

[0022] Figure 3 This is a three-dimensional schematic diagram of the rotating cylinder and arc gear structure of the present invention;

[0023] Figure 4 This is a cross-sectional schematic diagram of the hand grip structure of the present invention;

[0024] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 6 This is a three-dimensional schematic diagram of the structure of the adaptive guide component for this invention;

[0026] Figure 7 This is a three-dimensional schematic diagram of the positional relationship between the handle and the rotating column of the present invention;

[0027] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point B;

[0028] Figure 9 This is a cross-sectional schematic diagram of the second ring structure of the present invention;

[0029] Figure 10 This is a three-dimensional schematic diagram of the relationship between the second ring, the second connecting post, and the rectangular sliding sleeve of the present invention;

[0030] Figure 11 This is a three-dimensional schematic diagram of the guidewire example and the imaging marker structure of the present invention.

[0031] The labels in the diagram represent:

[0032] 1. Example of a main blood vessel; 101. Example of a secondary blood vessel (1); 102. Example of a secondary blood vessel (2);

[0033] 2. Precision rotation assembly; 201. Hand grip; 202. Rotating cylinder; 203. Arc gear; 204. Notch; 205. Rotating rod; 206. Rotating arc block; 207. Spring;

[0034] 3. Adaptive guide components; 301. First ring; 302. First connecting post; 303. Rotating rectangular block one; 304. Fixed rectangular block; 305. Rotating rectangular block two; 306. Threaded rod; 307. Handle; 308. Rotating post; 309. Connecting rod; 310. Second ring; 311. Second connecting post; 312. Rectangular sliding sleeve; 313. Fixed circular block.

[0035] 4. Guide wire example;

[0036] 5. Developable markers. Detailed Implementation

[0037] 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0038] Please see Figures 1 to 11This invention provides an embodiment of a medical interventional device, including a main blood vessel example 1, a handgrip 201, and a guidewire example 4. A precision rotation component 2 is provided on the right side of the main blood vessel example 1. The precision rotation component 2 includes a rotating cylinder 202, which is rotatably connected to the side wall of the handgrip 201. Multiple arc-shaped gears 203 are fixedly connected to the inner side of the rotating cylinder 202. The multiple arc-shaped gears 203 are arranged in a circular array with the center of the rotating cylinder 202 as a reference. The number of multiple arc-shaped gears 203 is set to seventy-two. The degree between each adjacent arc-shaped gear 203 and the center of the rotating cylinder 202 is five degrees. Two notches 204 are provided on the handgrip 201. A rotating rod 205 is rotatably connected inside each notch 204. A rotating arc-shaped block 206 is fixedly connected to the outer side of each rotating rod 205. A spring 207 is fixedly connected inside each notch 204.

[0039] Each rotating arc block 206 is fixedly connected to the side of the spring 207 away from the handle 201. The outer arc surface of the rotating arc block 206 is opposite in direction to the outer arc surface of each arc gear 203. The gap between the rotating arc block 206 and each two adjacent arc gears 203 meshes with each other.

[0040] The side wall of the rotating cylinder 202 is provided with an adapter guide assembly 3, which includes a first ring 301 rotatably connected to the side wall of the rotating cylinder 202. A first connecting post 302 is fixedly connected to the side wall of the rotating cylinder 202. The first connecting post 302 is eccentrically arranged with the center of the rotating cylinder 202 as a reference. A rotating rectangular block 303 is rotatably connected to the end of the first connecting post 302 away from the rotating cylinder 202. A fixed rectangular block 304 is fixedly connected to the outer side of the first ring 301. A rotating rectangular block 205 is rotatably connected to the side away from the rotating cylinder 202. A threaded rod 306 is rotatably connected through the interior of the rotating rectangular block 1 303. The outer side of the threaded rod 306 is threadedly connected to the rotating rectangular block 2 305. A handle 307 is fixedly connected to the end of the threaded rod 306 near the rotating rectangular block 1 303. A circular limiting piece is provided on the side of the threaded rod 306 near the handle 307 and the rotating rectangular block 1 303, so that the threaded rod 306 can only rotate and cannot produce horizontal or vertical displacement.

[0041] The adapter guide assembly 3 also includes three rotating pillars 308, each rotating pillar 308 being rotatably connected to the side wall of the rotating cylinder 202. The three rotating pillars 308 are arranged in a circular array with the center of the rotating cylinder 202 as a reference. A connecting rod 309 is fixedly connected to the outer side of each rotating pillar 308. A second ring 310 is fixedly connected to the side of the first ring 301 away from the rotating cylinder 202. Three second connecting pillars 311 are rotatably connected through the inside of the second ring 310. The three second connecting pillars 311 are arranged in a circular array with the center of the second ring 310 as a reference. A rectangular sliding sleeve 312 is fixedly connected to the end of each second connecting pillar 311 near the first ring 301. Each connecting rod 309 slides and adapts to the inside of the rectangular sliding sleeve 312. A fixing block 313 is fixedly connected to the end of each connecting rod 309 away from the rotating pillar 308. The fixing block 313 is made of rubber.

[0042] On the side of the main blood vessel example 1 away from the rotating cylinder 202, there are accessory blood vessels example 1 101 and accessory blood vessel example 2 102. The guidewire example 4 is divided into a tip and a tail. The tip of the guidewire example 4 has good flexibility, while the tail of the guidewire example 4 is more rigid and can stably transmit the rotational force applied by the medical staff. This is existing technology and will not be described in detail. The end of the guidewire example 4 away from the rotating cylinder 202 is provided with a contrast marker 5. The contrast marker 5 is made of high-density metal material, which allows doctors to track it in real time through imaging equipment. The position, course, and tip state of guidewire example 4 ensure its precise advancement within the human body cavity, avoiding deviation from the target path. Meanwhile, the imaging marker 5 is a prior art device, so it will not be described in detail. Accessory vessel example 2 102 and accessory vessel example 1 101 are both located on the movement path of guidewire example 4. The end of guidewire example 4 away from main vessel example 1 is located between the first ring 301 and the second ring 310, and the end of guidewire example 4 away from main vessel example 1 is located on the movement path of the three fixed blocks 313.

[0043] The working principle of the above implementation is as follows:

[0044] The initialization steps are as follows:

[0045] Spring 207 is not compressed, and each rotating arc block 206 is located between each two adjacent arc gears 203. Therefore, the inner plane of the rotating arc block 206 abuts against the inner plane of one of the arc gears 203. Medical personnel perform the necessary disinfection and protection work before the operation, and the medical personnel now place the tail end of guide wire example 4 between the first ring 301 and the second ring 310.

[0046] The operation steps are as follows:

[0047] The steps for adapting to bootloader component 3 are as follows:

[0048] refer to Figure 6 - Figure 10 The medical staff first grips the handle 201 with one hand, preventing it from rotating due to the gripping force. Then, the medical staff places their other hand on the handle 307 and begins to rotate the handle 307 counterclockwise. The handle 307 drives the threaded rod 306 to rotate counterclockwise, placing it inside the rotating rectangular block 303*. Simultaneously, the threaded rod 306 causes the rotating rectangular block 305 to move away from the rotating rectangular block 303* along its threads. Therefore, the rotating rectangular block 305 pulls the fixed rectangular block 304, causing the fixed rectangular block 304 to move away from the first connecting post 302. Because the fixed rectangular block... Block 304 is subjected to the force of rotating rectangular block 2 305, thereby fixing rectangular block 304 and driving the first ring 301 to rotate on the rotating cylinder 202. Therefore, fixed rectangular block 304 presents an arc-shaped movement, which is accompanied by the counterclockwise arc-shaped movement of fixed rectangular block 304, thereby preventing rotating rectangular block 2 305 from jamming. Rotating rectangular block 2 305 also needs to rotate clockwise with the connection between fixed rectangular block 304 and rotating rectangular block 2 305 as the axis. Therefore, threaded rod 306 will also present a counterclockwise swing with the first connecting post 302 as the reference. Thus, rotating rectangular block 1 303 also rotates counterclockwise at the connection between rotating rectangular block 1 303 and threaded rod 306. Therefore, when medical personnel turn handle 307, they do not need to suppress the counterclockwise upward swinging tendency of handle 307.

[0049] As described above, when the first ring 301 rotates counterclockwise, it drives the second ring 310 to rotate counterclockwise as well. Consequently, the second ring 310 drives the second connecting post 311 to rotate counterclockwise as well. The second connecting post 311 then drives the rectangular sliding sleeve 312 to rotate counterclockwise. Therefore, the rectangular sliding sleeve 312 pushes the connecting rod 309 to swing around the axis of the rotating post 308 towards the center of the second ring 310 through its inner wall. Thus, the connecting rod 309 slides inside the rectangular sliding sleeve 312. As a result, all three connecting rods 309 drive the fixed blocks 313 to move towards the center of the second ring 310. Therefore, the three fixed blocks 313 move towards the guide wire example 4 and abut against the guide wire example 4.

[0050] The working steps of the precision rotation component 2 are as follows:

[0051] like Figure 3 - Figure 5As described above, when the guidewire example 4 is pressed against the three fixed blocks 313, the operator still holds the handle 201, but no longer holds the handle 307. The three fixed blocks 313 remain pressed against the guidewire example 4. The operator first inserts the tip of the guidewire example 4 into the main blood vessel example 1. Simultaneously, the operator slowly pushes the guidewire example 4 through the handle 201. Along with the movement of the guidewire example 4, the guidewire example 4 causes the contrast marker 5 to move synchronously. The contrast marker 5 allows the doctor to track the position, course, and tip status of the guidewire example 4 in real time using imaging equipment, assisting medical personnel in ensuring precise advancement of the guidewire example 4 within the body cavity and avoiding... Similarly, when the guidewire example 4 moves to the positions of accessory blood vessel example 1 101 and accessory blood vessel example 2 102, the staff needs to start turning the rotating cylinder 202 clockwise. At this time, the rotating cylinder 202 drives the arc gear 203 to rotate clockwise. Therefore, the outer arc surface 2 of the arc gear 203 begins to slide continuously over the outer arc surface 1 of the rotating arc block 206. Similarly, the rotating arc block 206 continuously compresses the spring 207. When the outer arc surface 2 of the arc gear 203 no longer abuts the outer arc surface 1 of the rotating arc block 206, if the medical staff stops turning the rotating arc block 206 clockwise, the spring 207 pushes the rotating arc block 206 to rotate counterclockwise around the rotating rod 205 through elastic expansion force, thereby... The outer arc surface 203 of the arc gear 203 continuously slides over the outer arc surface 1 of the rotating arc block 206. The inner plane 2 of the rotating arc block 206 continuously rotates clockwise and counterclockwise, constantly contacting the inner plane 1 of the arc gear 203, producing a "clicking" sound. When the medical staff stops rotating the arc block 206 clockwise, the arc block 206 remains stuck between two adjacent arc gears 203. The end of the rotating arc block 206 away from the arc gear 203 contacts the bottom of the inner cavity of the notch 204, thus preventing the rotating cylinder 202 from flipping. When there are seventy-two arc gears 203, each "clicking" sound indicates that the rotating cylinder 202 has rotated five degrees clockwise. Therefore, relying on... The imaging marker 5 tracks the status of the guidewire example 4 in real time through the imaging equipment. At this time, the staff moves the rotating cylinder 202, which drives the guidewire example 4 to rotate clockwise. The tip of the guidewire example 4 has good flexibility, while the tail end near the rotating cylinder 202 is more rigid, which can stably transmit the rotational force applied by the medical staff. When the medical staff rotates the rotating cylinder 202 outside the body, the core wire with strong rigidity at the tail end of the guidewire example 4 will efficiently transmit the rotational torque to the tip of the guidewire example 4. Because the tip is highly flexible and pre-shaped, it will rotate around its own axis under the action of torque. Its pre-bent tip will fit the inner wall of the guidewire example 4 like a "steering wheel", thereby changing the direction. This is the existing technology and will not be described in detail.

[0052] The precise rotation component 2 avoids the need for medical personnel to manually rotate the guidewire example 4, which is difficult due to its small diameter. This reduces the need for repeated back-and-forth rotation when the guidewire example 4 needs to turn. The precise rotation of the rotating cylinder 202 allows the guidewire example 4 to rotate precisely by five degrees each time. Medical personnel can directly calculate the required turning angle based on the imaging position of the guidewire example 4 tip; for example, a 30-degree turn requires only six operations. Repeated attempts are required, significantly reducing ineffective operations and shortening the time spent on key surgical steps. At the same time, it avoids fatigue caused by prolonged fine force exertion of the hands, allowing medical staff to focus more on image observation and path judgment, improving the overall smoothness of the surgical operation. Furthermore, by rotating the arc block 206 to prevent the rotating cylinder 202 from reversing and the fixed circular block 313 from contacting the guidewire example 4, the influence of hand tremors on the rotation of the guidewire example 4 is eliminated. The uniform rotation of five degrees each time allows the tip of the guidewire example 4 to change direction smoothly, making the turning process of conforming to the main blood vessel example 1 more gentle, reducing friction and impact on the endothelium of the main blood vessel example 1, and reducing the probability of intraoperative complications.

[0053] By adapting the guide component 3 and the precision rotation component 2 to each other, the system can adapt to the contact of guide wires of different radii 4. When medical staff advance the lever 201, the contact of the three fixed blocks 313 can prevent the contact area between the fingers and the guide wire from being too small and the gripping force from being difficult to distribute evenly. This reduces the occurrence of guide wire deviation caused by finger tremors.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A medical interventional device, comprising a main blood vessel (1), a hand grip (201), and a guidewire (4), characterized in that: A precision rotation assembly (2) is provided on the right side of the main blood vessel example (1). The precision rotation assembly (2) includes a rotating cylinder (202). The inside of the rotating cylinder (202) is rotatably connected to the side wall of the hand grip (201). Multiple arc gears (203) are fixedly connected to the inside of the rotating cylinder (202). The multiple arc gears (203) are arranged in a circular array with the center of the rotating cylinder (202) as a reference. The number of multiple arc gears (203) is set to seventy-two. The degree between each adjacent arc gear (203) and the center of the rotating cylinder (202) is five degrees. Two notches (204) are opened on the hand grip (201). A rotating rod (205) is rotatably connected inside each notch (204). A rotating arc block (206) is fixedly connected to the outside of each rotating rod (205). A spring (207) is fixedly connected inside each notch (204). Each of the rotating arc blocks (206) is divided into an outer arc surface one and an inner plane two, and each of the arc gears (203) is divided into an outer arc surface two and an inner plane two. Each of the rotating arc blocks (206) is fixedly connected to the side of the spring (207) away from the hand grip (201). The outer arc surface one of the rotating arc block (206) is opposite in direction to the outer arc surface two of each arc gear (203). The gap between the rotating arc block (206) and each of the two adjacent arc gears (203) meshes with each other.

2. The medical interventional device according to claim 1, characterized in that: The rotating cylinder (202) has an adapter guide assembly (3) on its side wall. The adapter guide assembly (3) includes a first ring (301), which is rotatably connected to the side wall of the rotating cylinder (202). A first connecting post (302) is fixedly connected to the side wall of the rotating cylinder (202). A rotating rectangular block (303) is rotatably connected to the end of the first connecting post (302) away from the rotating cylinder (202). A fixed rectangular block (304) is fixedly connected to the outside of the first ring (301). A rotating rectangular block (305) is rotatably connected to the side of the fixed rectangular block (304) away from the rotating cylinder (202). A threaded rod (306) is rotatably connected through the inside of the rotating rectangular block (303). A handle (307) is fixedly connected to the end of the threaded rod (306) near the rotating rectangular block (303).

3. The medical interventional device according to claim 2, characterized in that: The adapter guide assembly (3) also includes three rotating columns (308), each of which is rotatably connected to the side wall of the rotating cylinder (202). A connecting rod (309) is fixedly connected to the outer side of each of the rotating columns (308). A second ring (310) is fixedly connected to the side of the first ring (301) away from the rotating cylinder (202). Three second connecting columns (311) are rotatably connected through the interior of the second ring (310). A rectangular sliding sleeve (312) is fixedly connected to the end of each second connecting column (311) near the first ring (301). A fixed circular block (313) is fixedly connected to the end of each connecting rod (309) away from the rotating column (308). The fixed circular block (313) is made of rubber.

4. The medical interventional device according to claim 1, characterized in that: The main blood vessel example (1) has accessory blood vessel example one (101) and accessory blood vessel example two (102) on the side away from the rotating cylinder (202), and the guidewire example (4) has a contrast marker (5) inside the end away from the rotating cylinder (202).

5. A medical interventional device according to claim 2, characterized in that: The first connecting column (302) is arranged eccentrically with the center of the rotating cylinder (202) as a reference, and the outer side of the threaded rod (306) is threadedly connected to the rotating rectangular block (305).

6. A medical interventional device according to claim 3, characterized in that: The three rotating columns (308) are arranged in a circular array with the center of the rotating cylinder (202) as the reference, and the three second connecting columns (311) are arranged in a circular array with the center of the second ring (310) as the reference.

7. A medical interventional device according to claim 3, characterized in that: Each of the connecting rods (309) is internally slidably fitted with a rectangular sliding sleeve (312).

8. A medical interventional device according to claim 4, characterized in that: Both accessory blood vessel example two (102) and accessory blood vessel example one (101) are located on the movement path of guidewire example (4).

9. A medical interventional device according to claim 3, characterized in that: The end of the guidewire example (4) away from the main blood vessel example (1) is located between the first ring (301) and the second ring (310), and the end of the guidewire example (4) away from the main blood vessel example (1) is located on the movement path of the three fixed blocks (313).

Images