A clamping movement assisting device suitable for guidewire catheters of various sizes

Abstract

The present invention relates to a clamping movement auxiliary device suitable for guidewire catheters of various sizes, comprising a longitudinal movement control component, a longitudinal movement component, a transverse movement component and a transverse movement control component. The output end of the longitudinal movement control component is connected to the longitudinal movement component and drives the longitudinal movement component to move longitudinally. A transverse movement component is provided on one side of the longitudinal movement component. After the longitudinal movement component moves longitudinally, the longitudinal movement component contacts or separates from the transverse movement component. A guidewire / catheter is passed between the longitudinal movement component and the transverse movement component. The output end of the transverse movement control component is connected to the transverse movement component and drives the transverse movement component to move forward and backward in the transverse direction. After the guidewire / catheter is clamped by the longitudinal movement component and the transverse movement component, it moves forward or backward with the transverse movement component through friction. The present invention can not only quickly realize the replacement of guidewire catheters, but also realize the movement and clamping of guidewire catheters of different sizes, thereby improving efficiency and having strong operability.

Description

[Technical field]

[0001] The present invention relates to the technical field of vascular intervention surgery, in particular to a clamping movement assisting device suitable for guidewire catheters of various sizes. [Background Technology]

[0002] Vascular interventional surgery has developed rapidly in recent years. Compared to traditional surgery, it offers significant advantages, including less invasiveness, increased safety, precise and effective treatment, and faster postoperative recovery. Vascular interventional surgery involves a procedure in which a physician, guided by imaging equipment, introduces precision instruments such as catheters and guidewires to the site of a lesion for treatment.

[0003] Vascular interventional surgery has significant drawbacks: 1. Prolonged operation reduces the surgeon's precision in guidewire and catheter manipulation, increasing the risk of surgical accidents. 2. Without the assistance of other devices, vascular interventional surgery relies entirely on the surgeon's experience in guidewire / catheter manipulation, significantly reducing surgical efficiency. 3. Because the surgery is performed under imaging equipment, the surgeon is exposed to X-rays for extended periods. Although the surgeon wears a protective suit, its coverage is limited and can cause significant harm. Furthermore, the suit is bulky, reducing the surgeon's operational flexibility.

[0004] The surgical method of operating the guidewire catheter with the help of auxiliary devices can greatly improve the accuracy and stability of the surgical operation, while reducing the dependence on the doctor's experience and reducing the chance of intraoperative accidents. [Summary of the invention]

[0005] The purpose of the present invention is to solve the above-mentioned shortcomings and provide a clamping movement assisting device suitable for guidewire catheters of various sizes. It can not only quickly replace the guidewire catheter, but also move and clamp guidewire catheters of different sizes, thereby improving efficiency and enhancing operability.

[0006] In order to achieve the above-mentioned purpose, a clamping movement auxiliary device suitable for guidewire catheters of various sizes is designed, including a longitudinal motion control component 1, a longitudinal motion component 2, a transverse motion component 3, a square support seat 4, a guidewire / catheter 5 and a transverse motion control component 6. The longitudinal motion control component 1 and the transverse motion control component 6 are both installed on the square support seat 4. The output end of the longitudinal motion control component 1 is connected to the longitudinal motion component 2, and drives the longitudinal motion component 2 to move longitudinally. A transverse motion component 3 is provided on one side of the longitudinal motion component 2. After the longitudinal motion component 2 moves longitudinally, it contacts or separates from the transverse motion component 3. A guidewire / catheter 5 is passed between the longitudinal motion component 2 and the transverse motion component 3. The output end of the transverse motion control component 6 is connected to the transverse motion component 3, and drives the transverse motion component 3 to move forward and backward in the transverse direction. After the guidewire / catheter 5 is clamped by the longitudinal motion component 2 and the transverse motion component 3, it moves forward or backward with the transverse motion component 3 due to friction.

[0007] Preferably, the longitudinal motion assembly 2 includes a moving shaft 26, a spring 22, a gear transmission assembly 23, a cam 24, a longitudinal fixing member 25 and a longitudinal fixing member mounting seat 27. The moving shaft 26 is arranged longitudinally, and the moving shaft 26 is sleeved with a longitudinal fixing member mounting seat 27. One end of the moving shaft 26 is sleeved with a spring 22, and the spring 22 is arranged between the longitudinal fixing member mounting seat 27 and the square support seat 4, and the two ends are respectively mounted and fixed on the square support seat 4 and the longitudinal fixing member mounting seat 27. The longitudinal fixing member 25 is installed on the top of the longitudinal fixing member mounting seat 27. The output end of the longitudinal motion control component 1 is connected to the gear transmission component 23, and controls the rotation of the gear transmission component 23. The output end of the gear transmission component 23 is connected to the cam 24, and drives the cam 24 to rotate. The cam 24 is connected to the longitudinal fixing member mounting seat 27. The longitudinal fixing member 25 on the longitudinal fixing member mounting seat 27 moves longitudinally through the spring 22 and the cam 24. The transverse movement fixing member 33 of the transverse motion component 3 is arranged on one side of the longitudinal fixing member 25. After the longitudinal fixing member 25 moves longitudinally, it contacts or separates from the transverse movement fixing member 33.

[0008] Preferably, the movable shaft 26 is fixed on the square support seat 4, and the longitudinal fixing member mounting seat 27 can be slidably mounted on the movable shaft 26. The longitudinal fixing member mounting seat 27 moves longitudinally under the drive of the spring 22 or the cam 24, so that the longitudinal fixing member 25 contacts or separates from the transverse movable fixing member 33.

[0009] Preferably, the longitudinal fixing piece 25 is fixed to the longitudinal fixing piece mounting seat 27 by threaded installation, and the square support seat 4 is provided with a waist hole extending in the longitudinal direction. The bottom of the longitudinal fixing piece 25 is passed through the waist hole and moves in the longitudinal direction through the waist hole and the movable shaft 26.

[0010] Preferably, the gear transmission assembly 23 includes a bevel gear 1 and a bevel gear 2 that are perpendicular to each other, the bevel gear 1 is connected to the output end of the longitudinal motion control assembly 1, the bevel gear 1 is meshed with the bevel gear 2, the bevel gear 2 is fixed on the cam 24, and drives the cam 24 to rotate around its own axis, and the upper and lower surfaces of the cam 24 are in contact with the square support seat 4 and the longitudinal fixing member mounting seat 27 respectively.

[0011] Preferably, a guide wire / catheter guide shaft 6 is provided on both the front and rear sides of the longitudinal motion component 2, and the guide wire / catheter guide shaft 6 is installed on the square support seat 4. A guide wire / catheter 5 is passed through the guide wire / catheter guide shaft 6, and the guide wire / catheter 5 is passed between the longitudinal fixing member 25 and the transverse moving fixing member 33.

[0012] Preferably, the lateral movement component 3 includes a lateral movement screw 31, a screw sleeve 32, a lateral movement fixing piece 33 and a screw fixing seat 34. The lateral movement screw 31 is installed on the screw fixing seat 34 through a bushing. The screw fixing seat 34 is fixed on the square support seat 4. The lateral movement screw 31 is connected to the output end of the lateral motion control component 6 and rotates under the drive of the lateral motion control component 6. The screw sleeve 32 is screwed onto the lateral movement screw 31 through a thread and moves back and forth along the lateral movement screw 31. The lateral movement fixing piece 33 is installed on the screw sleeve 32 and moves back and forth with the screw sleeve 32. After the guide wire / catheter 5 is clamped by the longitudinal fixing piece 25 and the lateral movement fixing piece 33, it moves forward or backward with the lateral movement fixing piece 33 due to friction.

[0013] Preferably, a rectangular through hole extending in the front-to-back direction is provided on the square support seat 4 , and the top of the transverse movable fixing member 33 is passed through the rectangular through hole and moves forward and backward along the rectangular through hole.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] (1) The present invention can not only quickly replace the guidewire catheter, but also move and clamp the guidewire catheter, thereby improving efficiency and enhancing operability;

[0016] (2) The present invention can achieve the clamping and forward (backward) control of guidewires / catheters of different sizes, which can meet the use requirements of vascular interventional surgery;

[0017] (3) The present invention can realize wire feeding, and the guide wire or catheter can move forward and backward, simulating the manual twisting operation to the greatest extent;

[0018] (4) The present invention can simultaneously activate the longitudinal motion control assembly and the lateral motion control assembly, driving the bevel gear and the screw to move without interfering with each other, and the operation is very reliable;

[0019] (5) The present invention is applicable to the guidewire / catheter control mechanism for vascular intervention surgery. It has a simple structure, a high degree of integration, a small size, is easy to install and process, and is worthy of promotion and application. [Brief Description of the Drawings]

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 is an exploded view of the present invention;

[0022] Figure 3 It is a schematic structural diagram of the longitudinal moving assembly of the present invention;

[0023] Figure 4 It is a schematic structural diagram of the lateral movement assembly of the present invention;

[0024] Figure 5 This is a schematic diagram of the installation of a guidewire catheter of the present invention;

[0025] Figure 6 This is a schematic diagram of the movement of the guidewire catheter of the present invention Figure 1 ;

[0026] Figure 7 This is a schematic diagram of the movement of the guidewire catheter of the present invention Figure 2 ;

[0027] In the figure: 1, longitudinal motion control assembly 2, longitudinal motion assembly 21, rotating bushing 22, spring 23, gear transmission assembly 24, cam 25, longitudinal fixing member 26, movable shaft 27, longitudinal fixing member mounting seat 3, lateral motion assembly 31, lateral moving screw 32, screw sleeve 33, lateral moving fixing member 34, screw fixing seat 4, square support seat 5, guide wire / catheter 6, lateral motion control assembly. [Specific implementation method]

[0028] As attached Figure 1 and attached Figure 2As shown, the present invention provides a clamping motion assisting device for guidewire catheters of various sizes that has a simple structure and can automatically control the clamping and advancement (retreat) of the guidewire / catheter. The clamping motion assisting device includes a longitudinal motion control component 1, a longitudinal motion component 2, a transverse motion component 3, a square support seat 4, a guidewire / catheter 5 and a transverse motion control component 6. The longitudinal motion control component 1 and the transverse motion control component 6 are both installed on the square support seat 4. The output end of the longitudinal motion control component 1 is connected to the longitudinal motion component 2 and drives the longitudinal motion component 2 to move longitudinally. A transverse motion component 3 is provided on one side of the longitudinal motion component 2. After the longitudinal motion component 2 moves longitudinally, it contacts or separates from the transverse motion component 3. A guidewire / catheter 5 is passed between the longitudinal motion component 2 and the transverse motion component 3. The output end of the transverse motion control component 6 is connected to the transverse motion component 3 and drives the transverse motion component 3 to move forward and backward in the transverse direction. After the guidewire / catheter 5 is clamped by the longitudinal motion component 2 and the transverse motion component 3, it moves forward or backward with the transverse motion component 3 due to friction.

[0029] As attached Figure 3 As shown, the longitudinal motion assembly 2 includes a pair of moving shafts 26, a pair of springs 22, a gear transmission assembly 23, a cam 24, three longitudinal fixing members 25 and a longitudinal fixing member mounting seat 27. The moving shaft 26 is arranged longitudinally, and the moving shaft 26 is sleeved with a longitudinal fixing member mounting seat 27. One end of the moving shaft 26 is sleeved with a spring 22, which is arranged between the longitudinal fixing member mounting seat 27 and the square support seat 4, and the two ends are respectively mounted and fixed on the square support seat 4 and the longitudinal fixing member mounting seat 27. A longitudinal fixing member is installed on the top of the longitudinal fixing member mounting seat 27. 25. The output end of the longitudinal motion control component 1 is connected to the gear transmission component 23 and controls the rotation of the gear transmission component 23. The output end of the gear transmission component 23 is connected to the cam 24 and drives the cam 24 to rotate. The cam 24 is connected to the longitudinal fixing member mounting seat 27. The longitudinal fixing member 25 on the longitudinal fixing member mounting seat 27 moves longitudinally through the spring 22 and the cam 24. The transverse moving fixing member 33 of the transverse motion component 3 is provided on one side of the longitudinal fixing member 25. After the longitudinal fixing member 25 moves longitudinally, it contacts or separates from the transverse moving fixing member 33.

[0030] The movable shaft 26 is fixed to the square support seat 4, and the longitudinal fixing member mounting seat 27 is slidably mounted on the movable shaft 26. The longitudinal fixing member mounting seat 27 moves longitudinally under the drive of the spring 22 or the cam 24, so that the longitudinal fixing member 25 contacts or separates from the transverse movable fixing member 33. For example: The longitudinal fixing member 25 is fixed to the longitudinal fixing member mounting seat 27 by threaded mounting. The square support seat 4 is provided with a waist hole extending in the longitudinal direction. The bottom of the longitudinal fixing member 25 passes through the waist hole and moves longitudinally through the waist hole and the movable shaft 26. The gear transmission assembly 23 includes a mutually perpendicular bevel gear 1 and a bevel gear 2. The bevel gear 1 is connected to the output end of the longitudinal motion control assembly 1. The bevel gear 1 is meshed with the bevel gear 2. The bevel gear 2 is fixed to the cam 24 and drives the cam 24 to rotate around its own axis. The upper and lower surfaces of the cam 24 are respectively in contact with the square support seat 4 and the longitudinal fixing member mounting seat 27. A guide wire / catheter guide shaft 6 is provided on both the front and rear sides of the longitudinal motion component 2. The guide wire / catheter guide shaft 6 is installed on the square support seat 4. A guide wire / catheter 5 is passed through the guide wire / catheter guide shaft 6. The guide wire / catheter 5 passes between the longitudinal fixing member 25 and the transverse moving fixing member 33.

[0031] As attached Figure 4 As shown, the transverse movement assembly 3 includes a transverse movement screw rod 31, a screw rod sleeve 32, a transverse movement fixing piece 33 and a screw rod fixing piece 34. The transverse movement screw rod 31 is installed on the screw rod fixing piece 34 through a bushing. The screw rod fixing piece 34 is fixed on the square support seat 4. The transverse movement screw rod 31 is connected to the output end of the transverse motion control assembly 6 and rotates under the drive of the transverse motion control assembly 6. The screw rod sleeve 32 is screwed on the transverse movement screw rod 31 through a thread and moves back and forth along the transverse movement screw rod 31. The transverse movement fixing piece 33 is installed on the screw rod sleeve 32 and moves back and forth along with the screw rod sleeve 32. After the guide wire / catheter 5 is clamped by the longitudinal fixing piece 25 and the transverse movement fixing piece 33, it moves forward or backward along with the transverse movement fixing piece 33 by friction; a rectangular through hole extending in the front and back direction is opened on the square support seat 4, and the top of the transverse movement fixing piece 33 is passed through the rectangular through hole and moves back and forth along the rectangular through hole.

[0032] The present invention will be further described below in conjunction with specific embodiments:

[0033] Example 1: Rapidly realize the installation, replacement, and clamping and fixing of guidewires or catheters of different sizes:

[0034] As attached Figure 5As shown, spring 22 is mounted and fixed to the square support base 4 and the longitudinal fixing member mounting base 27. The movable shaft 26 is fixed and restrained to the square support base 4 and the longitudinal fixing member mounting base 27 via threads and through-holes. The longitudinal fixing member 25 is threadedly fixed to the longitudinal fixing member mounting base 27 and moves longitudinally via a waist hole in the square support base 4 and the movable shaft 26. The cam 24 is connected to the gear transmission assembly 23 and the square support base 4 via its own mounting shaft and can rotate about its own axis. The longitudinal motion control assembly 1 controls the rotation of the gear transmission assembly 23, which in turn drives the cam 24 clockwise. The longitudinal fixing member 25 is driven upward to a predetermined position by the spring 22, cam 24, and the longitudinal fixing member mounting base 27, and is fully separated from the transverse movable fixing member 33. At this point, the spring 22 is free, and the upper and lower surfaces of the cam 24 are in constant contact with the square support base 4 and the longitudinal fixing member mounting base 27, respectively. The gap between the longitudinal fixing member 25 and the transverse movable fixing member 33 can be precisely controlled by a motor. Now, pass the guidewire or catheter through the guidewire / catheter guide shaft 6. Depending on the diameter of the guidewire / catheter, the motor controls the gear assembly 23 and cam 24 to rotate counterclockwise. The longitudinal fixture 25 moves downward to the set position, and the guidewire / catheter is now pressed against the longitudinal fixture 25 and the transverse fixture 33. The spring 22 is now in tension, and the cam 24 remains in contact with the square support 4 and the longitudinal fixture mounting 27. Repeating these steps allows installation and replacement of the guidewire / catheter.

[0035] Example 2: Achieving forward movement of guidewires / catheters of different sizes:

[0036] As attached Figure 6 As shown, the transverse movement screw 31 is mounted on a screw holder 34 via a bushing. The screw holder 34 is threadedly connected to the square support 4. The transverse movement fixture 33 is connected to the transverse movement screw 31 via a screw sleeve 32. The square support 4 has a rectangular through-hole, allowing the transverse movement fixture 33 to move left and right within it. After the guidewire / catheter is clamped by the longitudinal fixture 25 and the transverse movement fixture 33, the transverse movement control assembly 6 is controlled to rotate the transverse movement screw 31 clockwise, causing the transverse movement fixture 33 to move forward. Friction simultaneously moves the guidewire / catheter forward. After moving a predetermined distance, the longitudinal movement control assembly 1 controls the cam 24 to move clockwise, causing the longitudinal fixture 25 to move upward to its maximum position. Simultaneously, the transverse movement control assembly 6 controls the transverse movement screw 31 to rotate counterclockwise, causing the transverse movement fixture 33 to move backward and return to its initial position. The entire process can be broken down into clamping, forward movement, release, and backward reset. Repeating this cycle achieves forward movement of the guidewire / catheter.

[0037] Example 3: Realizing the backward movement of guidewires / catheters of different sizes:

[0038] As attached Figure 7 As shown, after the guide wire / catheter is clamped by the longitudinal fixing member 25 and the transverse moving fixing member 33, the transverse motion control component 6 is controlled to drive the transverse moving screw 31 to rotate counterclockwise, and the transverse moving fixing member 33 moves backward. Due to friction, the guide wire / catheter moves backward at the same time. After moving a preset distance, the longitudinal moving control component 1 controls the cam 24 to move clockwise, and the longitudinal fixing member 25 moves upward to the maximum position. At the same time, the transverse motion control component 6 controls the transverse moving screw 31 to rotate clockwise, and the transverse moving fixing member 33 moves forward to return to the initial position. The whole set of actions can be decomposed into clamping, moving backward, releasing, and moving forward to reset. Repeating the cycle can achieve the backward movement of the guide wire / catheter.

[0039] Therefore, the present invention can realize wire feeding, and the guide wire or conduit can move forward and backward, simulating the manual twisting operation to the greatest extent. At the same time, the longitudinal motion control component 1 and the lateral motion control component 6 are activated to drive the bevel gear and the lead screw to move without interfering with each other.

[0040] The present invention is not limited to the above-mentioned embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A gripping and movement assisting device suitable for guidewire catheters of various sizes, characterized by: The invention comprises a longitudinal motion control component (1), a longitudinal motion component (2), a transverse motion component (3), a square support seat (4), a guide wire / catheter (5) and a transverse motion control component (6), wherein the longitudinal motion control component (1) and the transverse motion control component (6) are both mounted on the square support seat (4), the output end of the longitudinal motion control component (1) is connected to the longitudinal motion component (2) and drives the longitudinal motion component (2) to move longitudinally, a transverse motion component (3) is provided on one side of the longitudinal motion component (2), and the longitudinal motion component (2) contacts or separates from the transverse motion component (3) after moving longitudinally, and the longitudinal motion component (2) and the transverse motion component (3) are in a state of contact or separation with each other. A guide wire / catheter (5) is provided interspersed therewith, and the output end of the lateral motion control component (6) is connected to the lateral motion component (3) and drives the lateral motion component (3) to move forward and backward in the lateral direction. After the guide wire / catheter (5) is clamped by the longitudinal motion component (2) and the lateral motion component (3), it moves forward or backward with the lateral motion component (3) through friction. The longitudinal motion component (2) includes a moving shaft (26), a spring (22), a gear transmission component (23), a cam (24), a longitudinal fixing member (25) and a longitudinal fixing member mounting seat (27). The moving shaft (26) is arranged in the longitudinal direction, and the longitudinal fixing member mounting seat (27) is mounted on the moving shaft (26). One end of the movable shaft (26) is sleeved with a spring (22), the spring (22) is arranged between the longitudinal fixing member mounting seat (27) and the square support seat (4), and the two ends are respectively mounted and fixed on the square support seat (4) and the longitudinal fixing member mounting seat (27), the top of the longitudinal fixing member mounting seat (27) is mounted with a longitudinal fixing member (25), the output end of the longitudinal motion control component (1) is connected to the gear transmission component (23), and controls the gear transmission component (23) to rotate, the output end of the gear transmission component (23) is connected to the cam (24), and drives the cam (24) to rotate, the cam (24) is connected to the longitudinal fixing member mounting seat (27), and the longitudinal fixing member is fixed to the square support seat (4). The longitudinal fixing member (25) on the mounting seat (27) moves longitudinally by means of a spring (22) and a cam (24); the transverse moving fixing member (33) of the transverse motion assembly (3) is provided on one side of the longitudinal fixing member (25); the longitudinal fixing member (25) contacts or separates from the transverse moving fixing member (33) after moving longitudinally; the moving shaft (26) is fixed on the square support seat (4); the longitudinal fixing member mounting seat (27) is slidably mounted on the moving shaft (26); the longitudinal fixing member mounting seat (27) moves longitudinally under the drive of the spring (22) or the cam (24), so that the longitudinal fixing member (25) contacts or separates from the transverse moving fixing member (33);The longitudinal fixing member (25) is fixed to the longitudinal fixing member mounting seat (27) by threaded installation. The square support seat (4) is provided with a waist hole extending in the longitudinal direction. The bottom of the longitudinal fixing member (25) passes through the waist hole and moves in the longitudinal direction through the waist hole and the moving shaft (26); the transverse motion component (3) includes a transverse moving screw (31), a screw sleeve (32), a transverse moving fixing member (33) and a screw fixing seat (34). The transverse moving screw (31) is installed on the screw fixing seat (34) through a bushing. The screw fixing seat (34) is fixed to the square support seat (4 ), the transverse moving screw (31) is connected to the output end of the transverse motion control component (6) and rotates under the drive of the transverse motion control component (6), the screw sleeve (32) is screwed onto the transverse moving screw (31) through a thread and moves forward and backward along the transverse moving screw (31), the transverse moving fixed member (33) is installed on the screw sleeve (32) and moves forward and backward with the screw sleeve (32), and the guide wire / catheter (5) is clamped by the longitudinal fixed member (25) and the transverse moving fixed member (33), and moves forward or backward with the transverse moving fixed member (33) through friction.; 2. The gripping motion assisting device according to claim 1, wherein: The gear transmission assembly (23) comprises a bevel gear 1 and a bevel gear 2 which are perpendicular to each other, the bevel gear 1 being connected to the output end of the longitudinal motion control assembly (1), the bevel gear 1 being meshed with the bevel gear 2, the bevel gear 2 being fixed on the cam (24) and driving the cam (24) to rotate around its own axis, and the upper and lower surfaces of the cam (24) being in contact with the square support seat (4) and the longitudinal fixing member mounting seat (27) respectively.

3. The gripping motion assisting device according to claim 1, wherein: A guide wire / catheter guide shaft is provided on both the front and rear sides of the longitudinal motion component (2), and the guide wire / catheter guide shaft is mounted on a square support seat (4). A guide wire / catheter (5) is passed through the guide wire / catheter guide shaft, and the guide wire / catheter (5) is passed between the longitudinal fixing member (25) and the transverse movement fixing member (33).

4. The gripping motion assisting device according to claim 1, wherein: The square support seat (4) is provided with a rectangular through hole extending in the front-to-back direction. The top of the transverse movable fixing member (33) is passed through the rectangular through hole and moves forward and backward along the rectangular through hole.

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