Suspended positioning support for iabp balloon catheter

Abstract

The invention belongs to the technical field of balloon catheter stents, and particularly relates to an iabp balloon catheter suspended positioning stent which comprises a slide way, the slide way is of a concave structure with an upward opening, a locking assembly is arranged at the opening, a plurality of steel rods are distributed in the slide way in an array mode in the axial direction, the steel rods are rotationally connected with the slide way, and silicon rubber cases are fixed to the outer sides of the steel rods. Annular grooves are formed in the middles of the outer sides of the silicon rubber cases, the edges of the annular grooves have radians, swing arms and clamping bases are arranged outside the sliding ways, the clamping bases comprise concave bases and vertical rods fixedly connected with the concave bases, the two ends of the swing arms are hinged to the upper ends of the vertical rods and the lower surfaces of the sliding ways respectively, and first locking bolts are installed at the hinged positions of the vertical rods and the swing arms in a penetrating mode. Flange rings are fixed in the middles of the lower surfaces of the slideways. The guide steel wire and the balloon can be supported and limited from the two sides, sliding friction is converted into rolling friction, and the damage effect on an anticoagulant coating in the balloon positioning and penetrating process is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of balloon catheter stents, and in particular relates to an IABP balloon catheter suspended positioning stent. Background Art

[0002] Intra-aortic balloon pump (IABP) involves inserting a guide wire and balloon into the artery and extending it to the thoracic aorta. The end of the guide wire is usually located on the leg. The length of the guide wire can be adjusted according to the patient's height. When inserted into the artery, it needs to be suspended in the air and kept as straight as possible. A stent can be used for auxiliary support.

[0003] After the patient is anesthetized on the bed, space is left on one side of the bed for medical staff, and a cantilever can be installed on the other side. One end of the cantilever extends above the opening of the patient's artery to insert the guide wire, and several C-shaped clips are suspended and fixed. These C-shaped clips are distributed in a straight line, pointing to the opening of the artery to insert the guide wire.

[0004] When supporting the guide wire in mid-air, several C-shaped clips with their openings facing downward are selected to support and guide the guide wire. After the guide wire is inserted, it is locked with Velcro. A balloon is fixed at the end of the guide wire, and the surface of the balloon is coated with an anticoagulant coating. After contacting the C-shaped clip, scratches are generated due to sliding friction, so that the positioning and insertion of the balloon directly damages the anticoagulant coating. For this reason, we propose an IABP balloon catheter suspended positioning bracket.

[0005] Invention content

[0006] The purpose of the present invention is to provide an IABP balloon catheter suspended positioning bracket, which can support the guide wire and the balloon and limit it from both sides, convert sliding friction into rolling friction, and reduce the damage to the anticoagulant coating during the balloon positioning and penetration process.

[0007] The technical solution adopted by the present invention is as follows:

[0008] The invention discloses an IABP balloon catheter suspended positioning bracket, comprising a slideway, wherein the slideway is a concave structure with an opening facing upward and a locking assembly is arranged at the opening, a plurality of steel rods are distributed in an axial array inside the slideway, the steel rods are rotatably connected to the slideway, a silicone sleeve is fixed on the outer side of the steel rod, an annular groove is arranged in the middle of the outer side of the silicone sleeve, and the edge of the annular groove has an arc, when preparing for puncture, the slideway opening is facing upward, one end is tilted to align with the arterial puncture hole, and the slideway is fixed on the side of the bed away from the medical staff by supporting measures, so that the guide wire and the balloon slide from the upper opening of the slideway along the annular groove of the silicone sleeve, the annular groove can support the guide wire and the balloon and limit them from both sides, and then slide out from the lower opening of the slideway until they penetrate into the artery, the steel rod and the silicone sleeve can rotate freely in the slideway, converting the sliding friction into the rolling friction, reducing the damage to the anticoagulant coating during the positioning and penetration of the balloon, and reducing the scratches on the anticoagulant coating.

[0009] A swing arm and a holder are arranged outside the slide, and the holder includes a concave seat and a vertical rod fixedly connected to the concave seat, and two ends of the swing arm are respectively hinged to the upper end of the vertical rod and the lower surface of the slide, and the opening of the holder clamps the edge of the bed, supporting the swing arm to be suspended horizontally, driving the slide to be suspended above the arterial puncture position, and there is no need to hold the slide by hand.

[0010] The hinge of the vertical rod and the swing arm is penetrated by a first locking bolt. Tightening the nut of the first locking bolt can lock the hinge of the vertical rod and the swing arm to prevent the vertical rod and the swing arm from moving relative to each other. Conversely, loosening the nut of the first locking bolt can release the locking state. The swing arm can be manually pushed to rotate a certain angle around the hinge point with the vertical rod, which can drive the slide to change its height, and finally the hinge of the vertical rod and the swing arm can be locked.

[0011] A flange ring is fixed in the middle of the lower surface of the slideway. After the swing arm is connected to the flange ring, it can be quickly aligned with the middle of the slideway without adjusting the center.

[0012] A second locking bolt is inserted into the circular hole of the flange ring, and the second locking bolt is threadedly connected to the swing arm. The second locking bolt is tightened to push the flange ring close to the swing arm and lock it under the action of friction. Conversely, the second locking bolt is loosened to release the locking effect. The slideway and the flange ring can be rotated around the second locking bolt to change the angle of the slideway toward the arterial puncture hole, thereby increasing the degree of freedom of the suspended positioning bracket.

[0013] The locking assembly includes a pressing plate inserted at the opening of the slide, and a plurality of nylon ropes are fixed at intervals on the upper surface of the pressing plate. The two ends of the nylon ropes extend downward over the two sides of the slide respectively. After the puncture is completed, the pressing plate can be inserted into the opening of the slide, and the two ends of the nylon ropes are passed around the two sides of the slide respectively, and then tied from the bottom of the slide. In this way, the pressing plate is pulled downward to cooperate with the silicone sleeve to compress the guide wire for locking, thereby reducing the amplitude of advancement or retreat along the artery.

[0014] The technical effects achieved by the present invention are:

[0015] The invention provides an IABP balloon catheter suspended positioning bracket. When preparing for puncture, the slideway opening is facing upwards, one end is tilted and aligned with the arterial puncture hole, and the bracket is fixed on the side of the bed away from medical staff by means of supporting measures. In this way, the guide wire and the balloon slide from the upper opening of the slideway along the annular groove of the silicone sleeve. The annular groove can support the guide wire and the balloon and limit them from both sides, and then the balloon slides out from the lower opening of the slideway until it penetrates the artery. The steel rod and the silicone sleeve can rotate freely in the slideway, converting sliding friction into rolling friction, thereby reducing the damage to the anticoagulant coating during the positioning and penetration process of the balloon and reducing scratches on the anticoagulant coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a front view of an IABP balloon catheter suspended positioning stent of the present invention;

[0017] Figure 2 is a front view of the slideway of the present invention;

[0018] Figure 3 is a top view of the steel rod of the present invention;

[0019] Figure 4 It is a side view of the swing arm of the present invention.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Slide; 2. Steel rod; 3. Silicone sleeve; 4. Annular groove; 5. Swing arm; 6. Base; 7. First locking bolt; 8. Flange ring; 9. Second locking bolt; 10. Pressure plate; 11. Nylon rope. DETAILED DESCRIPTION

[0022] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0023] like Figure 1-4 As shown, an IABP balloon catheter suspended positioning bracket comprises a slideway 1, which is a concave structure with an opening facing upward and a locking component is arranged at the opening. A plurality of steel rods 2 are arranged in an axial array inside the slideway 1. Both the steel rods 2 and the slideway 1 can be made of medical grade stainless steel. The steel rods 2 and the slideway 1 are rotatably connected. A silicone sleeve 3 is fixed on the outside of the steel rod 2. The silicone sleeve 3 can be made of medical grade silicone. An annular groove 4 is arranged in the middle of the outside of the silicone sleeve 3. The edges of the annular groove 4 are curved. The entire bracket is disinfected before surgery. When preparing for puncture, the slideway 1 is opened. The opening is facing upward, and one end is tilted to align with the arterial puncture hole, and is fixed on the side of the bed away from the medical staff by supporting measures, so that the guide wire and the balloon slide from the upper opening of the slide 1 along the annular groove 4 of the silicone sleeve 3, and the annular groove 4 can support the guide wire and the balloon and limit them from both sides, and then slide out from the lower opening of the slide 1, which is convenient for suspended positioning and guiding until they penetrate into the artery. The steel rod 2 and the silicone sleeve 3 can rotate freely in the slide 1, converting sliding friction into rolling friction, reducing the damage to the anticoagulant coating during the positioning and penetration of the balloon, and reducing scratches on the anticoagulant coating.

[0024] like Figure 1 , Figure 2 and Figure 3As shown, the width of the silicone sleeve 3 is greater than the width of the balloon, and the size of the opening of the annular groove 4 is smaller than the diameter of the balloon. In this way, after the guide wire and the balloon partially fall into the annular groove 4, they are centered on the silicone sleeve 3, and after being centered, the guide wire and the balloon maintain a sufficient safety distance from the inner wall of the slideway 1.

[0025] like Figure 1 , Figure 2 and Figure 4 As shown, a swing arm 5 and a holder 6 are provided on the outside of the slide 1. The holder 6 includes a concave seat and a vertical rod fixedly connected to the concave seat. Both ends of the swing arm 5 are hinged to the upper end of the vertical rod and the lower surface of the slide 1 respectively. The opening of the holder 6 clamps the edge of the bed, supporting the swing arm 5 to be suspended horizontally, driving the slide 1 to be suspended above the arterial puncture position, and there is no need to hold the slide 1 by hand.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, a first locking bolt 7 is installed through the hinge of the vertical rod and the swing arm 5. Tightening the nut of the first locking bolt 7 can lock the hinge of the vertical rod and the swing arm 5 to prevent the vertical rod and the swing arm 5 from moving relative to each other. Conversely, loosening the nut of the first locking bolt 7 can release the locking state. The swing arm 5 can be pushed by hand to rotate a certain angle around the hinge point with the vertical rod, which can drive the slide 1 to change its height, and finally the hinge of the vertical rod and the swing arm 5 is locked.

[0027] like Figure 1 and Figure 2 As shown, a flange ring 8 is fixed in the middle of the lower surface of the slide 1. After the swing arm 5 is connected to the flange ring 8, it can be quickly aligned with the middle of the slide 1 without adjustment to the center, and can support the slide 1 at the center of gravity.

[0028] like Figure 1 , Figure 2 and Figure 4 As shown, a second locking bolt 9 is inserted into the circular hole of the flange ring 8, and the second locking bolt 9 is threadedly connected to the swing arm 5. The second locking bolt 9 is used as one of the ways to connect the flange ring 8 to the swing arm 5. Tightening the second locking bolt 9 pushes the flange ring 8 close to the swing arm 5 and locks it under the action of friction. Conversely, loosening the second locking bolt 9 releases the locking effect. The slideway 1 and the flange ring 8 can be rotated around the second locking bolt 9 to change the angle of the slideway 1 toward the arterial puncture hole, thereby increasing the degree of freedom of the suspended positioning bracket.

[0029] like Figure 1 and Figure 2As shown, the locking assembly includes a pressing plate 10 inserted at the opening of the slide 1. The pressing plate 10 can be made of medical gold plastic material with a frosted surface. A number of nylon ropes 11 are fixed at intervals on the upper surface of the pressing plate 10. The two ends of the nylon ropes 11 extend downward over the two sides of the slide 1 respectively. After the puncture is completed, the pressing plate 10 can be inserted into the opening of the slide 1, and the two ends of these nylon ropes 11 are respectively passed around the two sides of the slide 1, and then tied from the bottom of the slide 1. In this way, the pressing plate 10 is pulled downward to cooperate with the silicone sleeve 3 to compress the guide wire for locking, thereby reducing the amplitude of advancing or retreating along the artery, making it convenient for the guide wire to drive the balloon to stay at the specified position of the artery.

[0030] The working principle of the present invention is: when preparing for puncture, the opening of the slide 1 is facing upward, one end is tilted and aligned with the arterial puncture hole, and it is fixed on the side of the bed away from the medical staff by supporting measures, so that the guide wire and the balloon slide from the upper opening of the slide 1 along the annular groove 4 of the silicone sleeve 3. The annular groove 4 can support the guide wire and the balloon and limit them from both sides, and then slide out from the lower opening of the slide 1 until they penetrate into the artery. The steel rod 2 and the silicone sleeve 3 can rotate freely in the slide 1, converting sliding friction into rolling friction, reducing the damage to the anticoagulant coating during the positioning and penetration of the balloon, and reducing scratches on the anticoagulant coating.

[0031] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. An IABP balloon catheter suspended positioning stent, characterized in that: The invention comprises a slideway (1), wherein the slideway (1) is a concave structure with an opening facing upward and a locking assembly is arranged at the opening, wherein a plurality of steel rods (2) are arranged in an axial array inside the slideway (1), wherein the steel rods (2) are rotatably connected to the slideway (1), wherein a silicone sleeve (3) is fixed to the outside of the steel rods (2), and an annular groove (4) is arranged in the middle of the outside of the silicone sleeve (3), and the edge of the annular groove (4) is curved.

2. The IABP balloon catheter suspended positioning stent according to claim 1, characterized in that: The slideway (1) is provided with a swing arm (5) and a holder (6) outside. The holder (6) comprises a concave seat and a vertical rod fixedly connected to the concave seat. The two ends of the swing arm (5) are respectively hinged to the upper end of the vertical rod and the lower surface of the slideway (1).

3. The IABP balloon catheter suspended positioning stent according to claim 2, characterized in that: A first locking bolt (7) is installed through the hinged joint between the vertical rod and the swing arm (5).

4. The IABP balloon catheter suspended positioning stent according to claim 2, characterized in that: A flange ring (8) is fixed in the middle of the lower surface of the slideway (1).

5. The IABP balloon catheter suspended positioning stent according to claim 4, characterized in that: A second locking bolt (9) is inserted into the circular hole of the flange ring (8), and the second locking bolt (9) is threadedly connected to the swing arm (5).

6. The IABP balloon catheter suspended positioning stent according to claim 1, characterized in that: The locking assembly comprises a pressure plate (10) inserted at the opening of the slideway (1), a plurality of nylon ropes (11) are fixed at intervals on the upper surface of the pressure plate (10), and two ends of the nylon ropes (11) respectively extend downward over two sides of the slideway (1).

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