Bourdon tube curing assistive device

Abstract

The utility model aims to provide a bourdon tube curing assistive device capable of ensuring the connection reliability of a bourdon tube and a blood inflow cage, a vertical plate of a base is provided with a clamping groove for clamping the bourdon tube, a notch tangent line at the top position of the clamping groove is arranged in the vertical direction, the vertical plate beside the clamping groove is provided with a fixing buckle, and the fixing buckle is connected with the bourdon tube. The fixing buckle presses the spring tube in the clamping groove and is attached to the groove wall of the clamping groove. In order to guarantee that the bourdon tube is attached to the groove wall of the clamping groove, a fixing buckle is arranged beside the clamping groove, the bourdon tube is pressed in the clamping groove through the fixing buckle, it is guaranteed that the tube core of the bourdon tube is located in the vertical plane, and the glue curing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of catheter pump manufacturing, in particular to a spring tube solidification auxiliary tool. Background Art

[0002] Various heart diseases, such as heart failure, myocardial infarction, myocardial injury, etc., can cause damage to the ventricle's pumping function. When treating these patients, the main method is to use auxiliary ventricular assist pumping devices, such as catheter pumps. There are left and right catheter pumps. When the catheter pump is deployed on the left side of the heart, the catheter pump pumps blood from the left ventricle of the heart to the aorta; when the catheter pump is deployed on the right side of the heart, the catheter pump pumps blood from the inferior vena cava, bypassing the right atrium and right ventricle, and pumps blood to the pulmonary artery.

[0003] After the spring tube of the catheter pump is connected to the blood inflow cage by gluing, the spring tube needs to be placed vertically and wait for the glue to cure to ensure the curing effect of the connection between the two. Since the spring tube has been preset to a curved shape that is compatible with the human physiological structure during production, if the spring tube is usually placed in a natural posture for curing, it will cause an offset between the spring tube and the blood inflow cage during the curing process, resulting in poor curing effect at the connection between the two, and there is a risk of breakage or falling off at the connection, causing the product to be scrapped. Utility Model Content

[0004] The utility model aims to provide a spring tube solidification auxiliary tool which can ensure the reliability of the connection between the spring tube and the blood inflow cage.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a spring tube curing auxiliary tool, a slot for clamping the spring tube is opened on the vertical plate of the base, the tangent line of the slot at the top of the slot is arranged in the vertical direction, and a fixing buckle is arranged on the vertical plate next to the slot, which presses the spring tube into the slot and fits it with the slot wall.

[0006] The fixing buckle comprises a U-shaped buckle, which is clamped on both sides of the vertical plate with its opening facing downward. A blocking piece is provided on the U-shaped buckle on the same side as the slot, which abuts against the spring tube and presses the inner spring tube against the inner wall of the slot.

[0007] A narrow slit is provided on the side plate of the U-shaped buckle on the same side as the slot, and the baffle is in a U-shape with the opening facing one side of the slot, including an inner plate and an outer plate parallel to each other, and a connecting plate between the inner plate and the outer plate. The connecting plate passes through the narrow slit and is connected to the U-shaped buckle, the inner plate is abutted against the vertical plate, and the outer plate protrudes to the position of the spring tube in the slot and presses the spring tube.

[0008] The projection of the inner plate on the vertical plate is covered by the projection of the outer plate on the vertical plate, and a gap is left between the projection of the inner plate on the vertical plate and the card slot, and the projection of the outer plate on the vertical plate partially or completely covers the card slot.

[0009] In a natural state, the distance between the inner walls on both sides of the U-shaped buckle is gradually reduced from top to bottom.

[0010] The upper part of the vertical plate is a flat plate, and the lower part of the middle upper part is an arc-shaped plate, and the curved shape of the slot arranged on the vertical plate is consistent with the curved shape of the spring tube.

[0011] The vertical plates are arranged in multiple rows at intervals on the base, and multiple groups of card slots and fixing buckles are evenly and spacedly arranged on the vertical plates in each row.

[0012] In the above scheme, the spring tube is placed in the slot. Since the notch tangent at the free end of the slot is arranged in the vertical direction, the angle of the spring tube in this section is limited and is also arranged in the vertical direction. Therefore, the core of the spring tube at this location is parallel to the core of the blood inflow cage, or even co-linear, thereby ensuring the curing effect of the spring tube and the blood inflow cage. In order to ensure that the spring tube fits the slot wall of the slot, a fixing buckle is provided beside the slot. The fixing buckle presses the spring tube in the slot to ensure that the core of the spring tube is located in the vertical plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a schematic diagram of the overall structure of the auxiliary tool;

[0014] Figure 2 for Figure 1 The middle part is an enlarged schematic diagram;

[0015] Figure 3 for Figure 2 Schematic diagram of the structure after removing the baffle;

[0016] Figure 4 for Figure 2 Schematic diagram of the structure after removing the U-shaped buckle;

[0017] Figure 5 A three-dimensional diagram of a fixing buckle;

[0018] Figure 6 This is the front view of the fixing buckle. DETAILED DESCRIPTION

[0019] Combine the following Figure 1-Figure 6 The utility model is further described in detail.

[0020] A spring tube curing aid, wherein a slot 12 for clamping a spring tube is provided on a vertical plate 11 of a base 10, and a notch tangent at the top of the slot 12 is arranged in a vertical direction, and a fixing buckle 20 is provided on the vertical plate 11 beside the slot 12, and the fixing buckle 20 presses the spring tube into the slot 12 and fits with the slot wall of the slot 12. The spring tube is placed in the slot 12, and since the notch tangent at the free end of the slot 12 is arranged in a vertical direction, the angle of the spring tube in this section is limited and is also arranged in a vertical direction, so the core of the spring tube at this location is parallel to the core of the blood inflow cage, or even in the same line, thereby ensuring the curing effect of the spring tube and the blood inflow cage. In order to ensure that the spring tube fits with the slot wall of the slot 12, a fixing buckle 20 is provided beside the slot 12, and the fixing buckle 20 presses the spring tube into the slot 12 to ensure that the core of the spring tube is located in a vertical plane.

[0021] As a preferred solution of the utility model, the fixing buckle 20 includes a U-shaped buckle 21, which is clamped on both sides of the vertical plate 11 with its opening facing downward, and a baffle 22 is provided on the U-shaped buckle 21 on the same side as the slot 12, and the baffle 22 abuts against the spring tube and presses the inner spring tube against the inner wall of the slot 12. When in use, the inner spring tube is first pressed against the inner wall of the slot 12 with the baffle 22, and then the U-shaped buckle 21 is fastened downward from the top of the vertical plate 11 to limit the position of the baffle 22, and the position of the baffle 22 is fixed, that is, the position of the spring tube in the slot 12 is fixed.

[0022] Furthermore, a narrow slit 212 is provided on the side plate 211 of the U-shaped buckle 21 on the same side as the slot 12, and the baffle 22 is U-shaped with its opening facing the side of the slot 12, including an inner plate 221 and an outer plate 222 parallel to each other, and a connecting plate 223 between the inner plate 221 and the outer plate 222, the connecting plate 223 passes through the narrow slit 212 and is connected to the U-shaped buckle 21, the inner plate 221 is abutted against the vertical plate 11, and the outer plate 222 protrudes to the position of the spring tube in the slot 12 and presses the spring tube. When in use, the inner plate 221 of the baffle 22 is close to the vertical plate 11, and the outer plate 222 presses the spring tube. The spacing between the inner plate 221 and the outer plate 222 is set, which can ensure that the spring tube is pressed and fits against the inner wall of the slot without deforming the spring tube. Then the narrow slit 212 of the U-shaped buckle 21 is aligned with the connecting plate 223 and clamped downward on the upper part of the vertical plate 11.

[0023] Furthermore, the projection of the inner plate 221 on the vertical plate 11 is covered by the projection of the outer plate 222 on the vertical plate 11, and a gap is left between the projection of the inner plate 221 on the vertical plate 11 and the card slot 12, and the projection of the outer plate 222 on the vertical plate 11 partially or completely covers the card slot 12. In this way, the inner plate 221 will not contact the edge of the card slot 12, preventing the spring tube from being blocked; at the same time, the outer plate can block the outside of the spring tube and reliably compress the spring tube.

[0024] In a natural state, the distance between the inner walls on both sides of the U-shaped buckle 21 is gradually reduced from top to bottom. In other words, the inner wall of the U-shaped buckle 21 has a certain taper and can be elastically deformed, which ensures fastening while being easy to disassemble.

[0025] In order to reduce damage to blood vessels, namely the heart, the spring tube is designed to be curved and pre-shaped to match the physiological structure of the human body. In order to maintain its predetermined shape, the upper section of the vertical plate 11 is a flat plate, and the lower section is an arc-shaped plate. The curved shape of the slot 12 provided thereon is consistent with the curved shape of the spring tube.

[0026] In order to improve production efficiency, the vertical plates 11 are arranged in multiple rows on the base 10, and multiple groups of slots 12 and fixing buckles 20 are evenly and spaced on each row of vertical plates 11. In this way, multiple spring tubes can be solidified in sequence, greatly improving production efficiency.

Claims

1. A spring tube curing aid, wherein a base (10) has a vertical plate (11) provided with a slot (12) for clamping the spring tube, and a notch tangent line at the top of the slot (12) is arranged in a vertical direction, characterized in that: A fixing buckle (20) is provided on the vertical plate (11) beside the slot (12), and the fixing buckle (20) presses the spring tube into the slot (12) and fits against the slot wall of the slot (12).

2. The spring tube curing aid according to claim 1, characterized in that: The fixing buckle (20) comprises a U-shaped buckle (21), the opening of the U-shaped buckle (21) being clamped on both sides of the vertical plate (11) with the opening facing downward, and a baffle (22) being provided on the U-shaped buckle (21) on the same side as the clamping groove (12), the baffle (22) being in contact with the spring tube and pressing the inner spring tube against the inner wall of the clamping groove (12).

3. The spring tube curing aid according to claim 1, characterized in that: A narrow slit (212) is provided on the side plate (211) of the U-shaped buckle (21) on the same side as the slot (12). The baffle (22) is in a U-shape with its opening facing the side of the slot (12), and comprises an inner plate (221) and an outer plate (222) parallel to each other, and a connecting plate (223) between the inner plate (221) and the outer plate (222). The connecting plate (223) passes through the narrow slit (212) and is connected to the U-shaped buckle (21). The inner plate (221) abuts against the vertical plate (11), and the outer plate (222) protrudes to the position of the spring tube in the slot (12) and presses the spring tube.

4. The spring tube curing aid according to claim 1, characterized in that: The projection of the inner plate (221) on the vertical plate (11) is covered by the projection of the outer plate (222) on the vertical plate (11), and a gap is left between the projection of the inner plate (221) on the vertical plate (11) and the card slot (12), and the projection of the outer plate (222) on the vertical plate (11) partially or completely covers the card slot (12).

5. The spring tube curing aid according to claim 1, characterized in that: In a natural state, the distance between the inner walls on both sides of the U-shaped buckle (21) is gradually reduced from top to bottom.

6. The spring tube curing aid according to claim 1, characterized in that: The upper section of the vertical plate (11) is a flat plate, and the middle and upper section is an arc-shaped plate downward, and the curved shape of the clamping groove (12) provided thereon is consistent with the curved shape of the spring tube.

7. The spring tube curing aid according to claim 1, characterized in that: The vertical plates (11) are arranged in multiple rows at intervals on the base (10), and multiple groups of card slots (12) and fixing buckles (20) are evenly and spaced apart on the vertical plates (11) in each row.

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