Device for coronary intervention

Abstract

The present invention relates to the technical field of medical devices, and discloses a device for coronary intervention therapy, including a shaper. A through hole for a guide wire to pass through is provided on the shaper. A chamber is provided inside the shaper, and the through hole communicates with the chamber. A bidirectional screw is rotatably connected to the shaper. The two ends of the bidirectional screw are respectively threadedly connected with a first arc-shaped block and a second arc-shaped block. Vertical grooves are provided at both ends of the first arc-shaped block, and vertical blocks are provided at both ends of the second arc-shaped block. The distance between the two vertical blocks is smaller than the distance between the two ends of the first arc-shaped block, and the vertical blocks are slidably connected to the vertical grooves. This solution mainly solves the problem of poor positioning effect of the existing shaper on the guide wire.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a device for coronary intervention therapy. Background Art

[0002] To maintain their normal life activities, all tissues and organs of the human body require the heart to beat continuously to ensure blood circulation. As a muscular power organ for pumping blood, the heart itself also needs sufficient nutrition and energy. The vascular system that supplies nutrition to the heart is the coronary artery and vein, also known as the coronary circulation. Coronary guidewires play a very important role in the treatment process. Most of the traditional coronary intervention guidewire tip shapers cannot be conveniently positioned according to the diameter of the coronary guidewire. Therefore, for the needs of coronary guidewires of different sizes, two or more types of shapers need to be prepared, which increases the investment cost and is difficult to meet the usage requirements.

[0003] To solve the above problems, Chinese Patent No. CN216571139U discloses a coronary intervention guidewire tip shaper, which includes a shaper main body. A cavity is provided inside the shaper main body. By setting a brake motor, a driving gear, a driven gear, a lead screw, a limit block, a lifting plate, a spring cylinder, a spring, a limit rod and a positioning plate, when using this device, first insert the coronary intervention guidewire into the insertion hole, and then the brake motor starts to work. Through the transmission of the driving gear and the driven gear, the lead screw is driven to rotate, and then the limit block drives the lifting plate to move upward. At this time, the spring cylinder drives the positioning plate to rise, completing the positioning of the coronary intervention guidewire. This design can realize the positioning and shaping of coronary intervention guidewires of various specifications and models.

[0004] The following problems exist during the actual use of the above patent: The guidewire is pressed and positioned by the positioning plate, but the contact between the positioning plate and the guidewire is a line contact, resulting in a small frictional force between the two. Under the action of external forces, the guidewire will displace or rotate, resulting in poor positioning effect of the guidewire, and thus affecting the treatment effect. Summary of the Invention

[0005] The present invention aims to provide a device for coronary intervention therapy to solve the problem of poor positioning effect of the existing shaper on the guidewire.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: A device for coronary intervention therapy includes a shaper. A through hole for the guidewire to pass through is provided on the shaper. A chamber is provided inside the shaper, and the through hole communicates with the chamber. A bidirectional screw is rotatably connected to the shaper. The two ends of the bidirectional screw are respectively threadedly connected with a first arc-shaped block and a second arc-shaped block. Vertical grooves are provided at both ends of the first arc-shaped block, and vertical blocks are provided at both ends of the second arc-shaped block. The distance between the two vertical blocks is smaller than the distance between the two ends of the first arc-shaped block, and the vertical blocks are slidably connected with the vertical grooves.

[0007] The principle and advantages of this solution are as follows:

[0008] 1. In this solution, the guide wire can be clamped and positioned by the approach of the first arc-shaped block and the second arc-shaped block. Compared with the prior art, the contact area with the guide wire is increased by the contact of the first arc-shaped block and the second arc-shaped block with the guide wire, thereby increasing the friction force and strengthening the positioning effect of the guide wire, avoiding the displacement or rotation of the guide wire, that is, ensuring the treatment effect.

[0009] 2. In this solution, the vertical block slides in the vertical groove, which can play a guiding role in the movement of the first arc-shaped block and the second arc-shaped block, so that the approach of the two will not deviate, ensuring the accuracy of the guide wire positioning.

[0010] Furthermore, a movable block is provided at the bottom of the second arc-shaped block. Both sides of the top of the movable block are provided with top grooves. Inclined grooves are provided in the top grooves. A slider is slidably connected in the inclined grooves. A top block is provided on the slider. The top block can move horizontally and vertically in the top groove; both ends of the second arc-shaped block are provided with side grooves. The distance between the two side grooves is smaller than the distance between the two vertical blocks. Elastic blocks are provided in the side grooves. The elastic blocks are located on the movement track of the top block; an adjusting mechanism for adjusting the distance between the two top blocks as the two vertical blocks move is also included.

[0011] Through the above settings, during the upward movement of the second arc-shaped block, the two vertical blocks also move upward. The adjusting mechanism drives the distance between the two top blocks to decrease, that is, the two top blocks approach.

[0012] The top block moves along the path of the inclined groove through the slider, so that the top block moves upward. The top block extends into the side groove and acts on the elastic block, causing the elastic block to bulge towards the direction of the guide wire; the second arc-shaped block continues to move upward, causing the elastic block to abut against the guide wire, that is, using the two elastic blocks to clamp the guide wire from the horizontal direction, further strengthening the positioning effect of the guide wire.

[0013] The guide wire can be positioned vertically by clamping the guide wire with the first arc-shaped block and the second arc-shaped block, and the two elastic blocks can position the guide wire from the horizontal direction, thereby effectively avoiding the displacement or rotation of the guide wire.

[0014] Since the elastic block has elasticity and can undergo a certain deformation, it can be applied to guide wires of different sizes.

[0015] Furthermore, the adjusting mechanism includes wall grooves opened on both sides of the side wall of the movable block. Wall blocks are slidably connected in the wall grooves. A first spring is provided between the wall blocks and the wall grooves. The movement directions of the two wall blocks are opposite; the wall grooves are communicated with the top grooves. A guiding groove is vertically provided on the top of the wall block. The top block is slidably connected with the guiding groove; an adjusting part for intermittently squeezing the distance between the two wall blocks as the two vertical blocks move is also included.

[0016] Through the above arrangement, during the upward movement of the two vertical blocks, the two wall blocks can be brought closer through the adjustment part, and the wall blocks drive the top blocks to move synchronously, so that the two top blocks are close to each other; during the movement of the top blocks, the top blocks are moved along the path of the inclined groove through the slider, that is, the top blocks will also move upward.

[0017] Furthermore, the adjustment part includes a rotating shaft rotatably connected to both sides of the chamber, a cam coaxially connected to the rotating shaft and abutting against the wall block, and the cam can rotate in the wall groove; and also includes an adjustment unit that drives the two rotating shafts to rotate when the two vertical blocks move.

[0018] With the above arrangement, when the two vertical blocks move upward, the two shafts are driven to rotate by the adjusting unit, and the shafts drive the cams to rotate, so that the protrusions of the cams squeeze the wall blocks to move in the wall grooves, that is, the two wall blocks are close to each other.

[0019] Furthermore, the adjustment unit includes a circular shaft rotatably connected to both sides of the chamber, a rack fixed to the vertical block, and a worm coaxially connected to the rotating shaft. A gear and a worm wheel are coaxially connected to the circular shaft, the gear is meshed with the rack, and the worm wheel is meshed with the worm.

[0020] Through the above arrangement, when the two vertical blocks move upward, the vertical blocks drive the rack to move upward, the rack meshes with the gear to drive the circular shaft to rotate, the circular shaft drives the worm wheel to rotate, the worm wheel meshes with the worm to drive the worm to rotate, and the worm drives the rotating shaft to rotate.

[0021] Furthermore, a stop groove is provided on the wall groove; side grooves are provided on both sides of the side wall of the shaper, the side grooves are communicated with the chamber, a stop rod is slidably connected in the side groove, a second spring is provided between the stop rod and the chamber, the stop rod is abutted against the movable block, and the stop rod and the stop groove are slidably matched.

[0022] Through the above arrangement, during the upward movement of the second arc block, the movable block moves upward, and at the same time, during the approach of the two wall blocks, the wall block moves along the path of the wall groove, so that the wall block and the stop groove are staggered, that is, the stop groove is connected with the wall groove, the chamber, and the side groove, so that the stop rod slides into the stop groove under the action of the second spring, thereby achieving the stopping of the movable block, and then achieving the stopping of the second arc block, that is, achieving the stopping of the bidirectional screw, further enhancing the positioning effect of the first arc block and the second arc block, and also enhancing the positioning effect of the guide wire.

[0023] Furthermore, the distance between the stop groove and the side of the wall groove away from the second arc-shaped block is equal to the thickness of the cam.

[0024] With the above settings, since the distance between the stop groove and the side of the wall groove away from the second arc-shaped block is equal to the thickness of the cam, that is, the distance between the stop groove and the lower side wall of the wall groove is equal to the thickness of the cam. Therefore, after the stop rod slides into the stop groove, the distance between the stop rod and the lower side wall of the wall groove is equal to the thickness of the cam, that is, the cam is clamped by the stop rod and the lower side wall of the wall groove to prevent the cam from rotating. Furthermore, the second arc-shaped block is stopped by the round shaft, worm, rotating shaft, gear, rack, and vertical block, that is, the bidirectional screw is stopped, further strengthening the positioning effect on the first arc-shaped block and the second arc-shaped block, and also strengthening the positioning effect on the guide wire.

[0025] Furthermore, a handle is provided on the bidirectional screw.

[0026] With the above settings, driving the bidirectional screw to rotate through the handle is more conducive to the operation of the staff. Description of the Drawings

[0027] Figure 1 It is a schematic structural diagram of an embodiment of the device for coronary intervention treatment of the present invention;

[0028] Figure 2 It is Figure 1 the front view of

[0029] Figure 3 It is Figure 2 a partial cross-sectional view in the main viewing direction. Specific Embodiments

[0030] The following is a more detailed description through specific embodiments:

[0031] The reference numerals in the accompanying drawings of the specification include: shaper 10, through hole 11, chamber 12, bidirectional screw 20, first arc-shaped block 21, second arc-shaped block 22, auxiliary groove 23, auxiliary block 24, vertical groove 25, vertical block 26, handle 27, movable block 30, top groove 31, inclined groove 32, top block 33, side groove 34, elastic block 35, wall groove 40, wall block 41, first spring 42, guide groove 43, rotating shaft 44, cam 45, round shaft 50, rack 51, worm 52, gear 53, worm gear 54, stop groove 60, stop rod 61, guide wire 70.

[0032] Embodiment

[0033] Basically as shown in the attached Figure 1 and attached Figure 2 and attached Figure 3As shown: The device for coronary intervention includes a shaper 10, and a through hole 11 for a guide wire 70 to pass through is formed on the shaper 10. A chamber 12 is formed inside the shaper 10, and the through hole 11 communicates with the chamber 12; A bidirectional screw 20 is rotatably connected to the shaper 10, the bidirectional screw 20 is perpendicular to the shaper 10, and a handle 27 is fixedly connected to the bidirectional screw 20. The two ends of the bidirectional screw 20 are respectively threadedly connected with a first arc-shaped block 21 and a second arc-shaped block 22. The first arc-shaped block 21 and the second arc-shaped block 22 are respectively located on the upper and lower sides of the through hole 11, and the first arc-shaped block 21 is located above the second arc-shaped block 22; Auxiliary grooves 23 are vertically formed on both the upper and lower sides inside the chamber 12, and auxiliary blocks 24 are slidably connected inside the auxiliary grooves 23. One auxiliary block 24 is fixedly connected to the first arc-shaped block 21, and the other auxiliary block 24 is fixedly connected to the second arc-shaped block 22. Vertical grooves 25 are formed at both ends of the first arc-shaped block 21, vertical blocks 26 are fixedly connected to both ends of the second arc-shaped block 22, the distance between the two vertical blocks 26 is smaller than the distance between both ends of the first arc-shaped block 21, and the vertical blocks 26 are slidably connected with the vertical grooves 25.

[0034] A movable block 30 is fixedly connected to the bottom of the second arc-shaped block 22. Top grooves 31 are formed on both sides of the top of the movable block 30, and inclined grooves 32 are formed inside the top grooves 31. The distance between the two inclined grooves 32 gradually increases from top to bottom. Sliders are slidably connected inside the inclined grooves 32, and a top block 33 is fixedly connected to the sliders. The top block 33 can move horizontally and vertically inside the top grooves 31; Side grooves 34 are formed at both ends of the second arc-shaped block 22, the distance between the two side grooves 34 is smaller than the distance between the two vertical blocks 26, and elastic blocks 35 are fixedly connected inside the side grooves 34. The elastic blocks 35 are rubber blocks, and the elastic blocks 35 are located on the movement trajectory of the top block 33.

[0035] It also includes an adjusting mechanism for adjusting the distance between the two top blocks 33 as the two vertical blocks 26 move. The adjusting mechanism includes wall grooves 40 formed on both sides of the side wall of the movable block 30. Wall blocks 41 are slidably connected inside the wall grooves 40, and a first spring 42 is fixedly connected between the wall blocks 41 and the wall grooves 40. The movement directions of the two wall blocks 41 are opposite; The wall grooves 40 communicate with the top grooves 31. A guiding groove 43 is vertically formed on the top of the wall block 41, and the top block 33 is slidably connected with the guiding groove 43; It also includes an adjusting part for intermittently squeezing the distance between the two wall blocks 41 as the two vertical blocks 26 move. The adjusting part includes rotating shafts 44 rotatably connected to both sides inside the chamber 12. The rotating directions of the two rotating shafts 44 are opposite, and cams 45 that abut against the wall blocks 41 are coaxially connected to the rotating shafts 44. The cams 45 can rotate inside the wall grooves 40; It also includes an adjusting unit for driving the two rotating shafts 44 to rotate as the two vertical blocks 26 move. The adjusting unit includes round shafts 50 rotatably connected to both sides inside the chamber 12, racks 51 fixedly connected to the vertical blocks 26, worms 52 coaxially connected to the rotating shafts 44, gears 53 and worm wheels 54 coaxially connected to the round shafts 50. The gears 53 are meshed with the racks 51, the worm wheels 54 are meshed with the worms 52, and the worms 52 are rotatably connected to the chamber 12.

[0036] A stop groove 60 is formed in the wall groove 40; side grooves are formed on both sides of the side wall of the shaper 10, the side grooves communicate with the chamber 12, a stop rod 61 is slidably connected in the side grooves, a second spring is fixedly connected between the stop rod 61 and the chamber 12, the stop rod 61 abuts against the movable block 30, the stop rod 61 is slidably matched with the stop groove 60, and the second spring is in a compressed state in the initial state. The distance between the stop groove 60 and the side of the wall groove 40 away from the second arc-shaped block 22 is equal to the thickness of the cam 45.

[0037] The specific implementation process is as follows:

[0038] During use, the guide wire 70 is passed through the through hole 11 so that the guide wire 70 is located between the first arc-shaped block 21 and the second arc-shaped block 22.

[0039] The bidirectional screw 20 is rotated by driving the handle 27, so that the first arc-shaped block 21 and the second arc-shaped block 22 move vertically, that is, the first arc-shaped block 21 and the second arc-shaped block 22 approach each other. When both the first arc-shaped block 21 and the second arc-shaped block 22 abut against the guide wire 70, the bidirectional screw 20 stops rotating, so as to realize the stop of the first arc-shaped block 21 and the second arc-shaped block 22, that is, the guide wire 70 is clamped from the vertical direction by using the first arc-shaped block 21 and the second arc-shaped block 22; the contact area with the guide wire 70 is increased by the contact between the first arc-shaped block 21 and the second arc-shaped block 22 and the guide wire 70, that is, the friction force is increased, and further the positioning effect on the guide wire 70 is strengthened.

[0040] During the upward movement of the second arc-shaped block 22, the second arc-shaped block 22 drives the vertical block 26 to move upward, the vertical block 26 drives the rack 51 to move upward, the rack 51 meshes with the gear 53 to drive the round shaft 50 to rotate, the round shaft 50 drives the worm wheel 54 to rotate, the worm wheel 54 meshes with the worm 52 to drive the worm 52 to rotate, the worm 52 drives the rotating shaft 44 to rotate, the rotating shaft 44 drives the cam 45 to rotate, so that the convex part of the cam 45 squeezes the wall block 41 to move in the wall groove 40, that is, the two wall blocks 41 approach each other, and the first spring 42 is compressed; during the movement of the wall block 41, the wall block 41 drives the top block 33 to move synchronously, so that the top block 33 moves along the path of the inclined groove 32 through the slider, that is, the top block 33 will also move upward, so that the top block 33 extends into the side groove 34 and acts on the elastic block 35, so that the elastic block 35 bulges towards the direction of the guide wire 70; the second arc-shaped block 22 continues to move upward. When the second arc-shaped block 22 stops, the elastic block 35 abuts against the guide wire 70, that is, the guide wire 70 is clamped from the horizontal direction by using the two elastic blocks 35, further strengthening the positioning effect on the guide wire 70; and, the displacement or rotation of the guide wire 70 can be avoided by positioning the guide wire 70 in the vertical direction and the horizontal direction; in addition, since the elastic block 35 has elasticity and can undergo a certain deformation, it can be applied to guide wires 70 of different sizes.

[0041] During the upward movement of the second arc-shaped block 22, the movable block 30 moves upward. At the same time, during the approach of the two wall blocks 41, the wall blocks 41 move along the path of the wall groove 40. When the second arc-shaped block 22 stops, the wall block 41 is misaligned with the stop groove 60, that is, the stop groove 60 communicates with the wall groove 40, the chamber 12, and the side groove, so that the stop rod 61 slides into the stop groove 60 under the action of the second spring, thereby realizing the stop of the movable block 30, and further realizing the stop of the second arc-shaped block 22, that is, realizing the stop of the bidirectional screw 20, further strengthening the positioning effect on the first arc-shaped block 21 and the second arc-shaped block 22, and also strengthening the positioning effect on the guide wire 70.

[0042] Since the distance between the stop groove 60 and the side of the wall groove 40 away from the second arc-shaped block 22 is equal to the thickness of the cam 45, that is, the distance between the stop groove 60 and the lower side wall of the wall groove 40 is equal to the thickness of the cam 45. Therefore, after the stop rod 61 slides into the stop groove 60, the distance between the stop rod 61 and the lower side wall of the wall groove 40 is equal to the thickness of the cam 45, that is, the cam 45 is clamped by the stop rod 61 and the lower side wall of the wall groove 40 to prevent the cam 45 from rotating. Furthermore, the second arc-shaped block 22 is stopped through the round shaft 50, the worm 52, the rotating shaft 44, the gear 53, the rack 51, and the vertical block 26, that is, the stop of the bidirectional screw 20 is realized, further strengthening the positioning effect on the first arc-shaped block 21 and the second arc-shaped block 22, and also strengthening the positioning effect on the guide wire 70.

[0043] The above are only embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. A device for coronary interventional treatment, comprising a shaper, the shaper being provided with a through hole for a guide wire to pass through, characterized in that: A chamber is provided in the shaper, and the through hole is connected to the chamber; a bidirectional screw is rotatably connected to the shaper, and the two ends of the bidirectional screw are respectively threadedly connected with the first arc block and the second arc block, both ends of the first arc block are provided with vertical grooves, and both ends of the second arc block are provided with vertical blocks, the spacing between the two vertical blocks is smaller than the spacing between the two ends of the first arc block, and the vertical blocks are slidably connected to the vertical grooves; a movable block is provided at the bottom of the second arc block, and top grooves are provided on both sides of the top of the movable block, and an inclined groove is provided in the top groove, and a slider is slidably connected in the inclined groove, and a top block is provided on the slider, and the top block can move horizontally and vertically in the top groove; both ends of the second arc block are provided with side grooves, and the spacing between the two side grooves is smaller than the spacing between the two vertical blocks, and an elastic block is provided in the side groove, and the elastic block is located on the movement trajectory of the top block; it also includes an adjustment mechanism for adjusting the spacing between the two top blocks as the two vertical blocks move.

2. The device for coronary interventional treatment according to claim 1, characterized in that: The adjusting mechanism includes wall grooves provided on both sides of the side walls of the movable block, wall blocks are slidably connected in the wall grooves, a first spring is provided between the wall block and the wall grooves, and the movement directions of the two wall blocks are opposite; the wall grooves are connected to the top grooves, a guide groove is vertically provided on the top of the wall block, and the top block is slidably connected to the guide grooves; and also includes an adjusting part that intermittently squeezes the distance between the two wall blocks as the two vertical blocks move.

3. The device for coronary interventional treatment according to claim 2, characterized in that: The adjusting part comprises a rotating shaft rotatably connected to both sides of the chamber, a cam coaxially connected to the rotating shaft and abutting against the wall block, and the cam can rotate in the wall groove; and also comprises an adjusting unit which drives the two rotating shafts to rotate when the two vertical blocks move.

4. The device for coronary interventional treatment according to claim 3, characterized in that: The adjusting unit comprises a circular shaft rotatably connected to both sides of the chamber, a rack fixed to the vertical block, and a worm coaxially connected to the rotating shaft. A gear and a worm wheel are coaxially connected to the circular shaft. The gear meshes with the rack, and the worm wheel meshes with the worm.

5. The device for coronary interventional treatment according to claim 4, characterized in that: A stop groove is provided on the wall groove; side grooves are provided on both sides of the side wall of the shaper, the side grooves are communicated with the chamber, a stop rod is slidably connected in the side groove, a second spring is provided between the stop rod and the chamber, the stop rod is abutted against the movable block, and the stop rod and the stop groove are slidably matched.

6. The device for coronary interventional treatment according to claim 5, characterized in that: The distance between the stop groove and the side of the wall groove away from the second arc-shaped block is equal to the thickness of the cam.

7. The device for coronary interventional treatment according to claim 6, characterized in that: The bidirectional screw rod is provided with a handle.

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