Balloon catheter welding and fixing device

Abstract

The utility model discloses a balloon catheter welding fixing device which comprises a base. The balloon catheter welding and fixing device comprises a base, a fixing frame is fixed to the base, a guide rail is fixed to the fixing frame, a plurality of balloon catheter containing grooves are formed in the guide rail, and an upper heating head and a lower heating head are detachably installed on the front side of the fixing frame through connecting plates. The direct radiation of the non-welding part of the balloon catheter is effectively isolated, the air hole is formed in the middle of the fixing frame and located in the middle between the upper heating head and the lower heating head, continuous air blowing is facilitated in the welding process, radiated redundant heat can be rapidly taken away, the influence of the heat on the wall thickness of the balloon is further reduced, and the welding quality of the balloon catheter is improved. Therefore, the uniformity of the wall thickness of the balloon and the stability of a product are ensured, and the problem of non-uniform wall thickness caused by heat radiation of the balloon in the existing hot melting welding technology is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to balloon catheter welding technical field especially relates to a balloon catheter welding fixing device. BACKGROUND

[0002] Balloon catheter is a kind of instrument widely used in medical field, it is mainly composed of catheter and balloon two parts.Catheter is generally slender tubular structure, has good flexibility and operability, can smoothly pass through the blood vessels or other pipeline of human body, is widely used in cardiovascular field, neural vascular field and urinary field, when processing balloon catheter, it needs to be fixed to carry out welding operation.

[0003] The heat fusion welding technology on the market currently exists the problem of significant heat radiation in mold heating welding process, and the heat radiation can affect the uniformity of the wall thickness of balloon, since balloon catheter has very high thickness requirement, any slight thickness unevenness can cause its compliance unqualified, and further affect the overall performance and quality of product, therefore, the existing heat fusion welding technology has obvious deficiency when processing high-precision balloon product. UTILITY MODEL CONTENTS

[0004] To solve the problems in the prior art, the utility model provides a balloon catheter welding fixing device, heat insulation blocks are arranged on the two sides of upper heating head and lower heating head, the direct radiation of balloon catheter in non-welding position is effectively insulated, air holes are formed in the middle of fixing frame, and the air holes are located in the middle between upper heating head and lower heating head, continuous blowing is facilitated during welding process, and the excessive heat radiated can be quickly taken away, the influence of heat on balloon wall thickness is further reduced, so that the uniformity of balloon wall thickness and the stability of product are ensured, and the problem of uneven wall thickness of balloon caused by heat radiation in the existing heat fusion welding technology is solved.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] The utility model provides a kind of balloon catheter welding fixing device, including base;The fixed frame is fixed on the base, the fixed frame is fixed with guide rail, the guide rail is opened with a plurality of balloon catheter placing grooves, the front side of the fixed frame is respectively detachably installed with upper heating head and lower heating head by connecting plate, the upper heating head and lower heating head are symmetrically arranged, the left and right sides of the fixed frame are fixed with ear plate, the bottom side of the ear plate is detachably installed with heat insulation block by fastening bolt, the heat insulation block is located in the two sides of upper heating head and lower heating head, and heat insulation block is connected on guide rail, the middle part of the fixed frame is opened with air hole, the air hole is located in the middle part between upper heating head and lower heating head, by setting heat insulation block in the two sides of upper heating head and lower heating head, the direct radiation of balloon catheter in non-welding position is effectively insulated, and by being opened with air hole in the middle part between upper heating head and lower heating head, it is convenient to carry out continuous blowing during welding, can quickly take away the excess heat radiated, further reduce the influence of heat on balloon wall thickness, so as to ensure the uniformity of balloon wall thickness and the stability of product, solve the problem of uneven wall thickness caused by heat radiation of balloon in existing hot melt welding technology.

[0007] Further, the guide rail is clamped with two left-right symmetrical catheter fixing plates, which facilitates the fixation of the balloon catheter, avoids movement during welding, and improves the use stability.

[0008] Compared with the prior art, the utility model has the beneficial effects that: by setting heat insulation block in the two sides of upper heating head and lower heating head, the direct radiation of balloon catheter in non-welding position is effectively insulated, and by being opened with air hole in the middle part between upper heating head and lower heating head, it is convenient to carry out continuous blowing during welding, can quickly take away the excess heat radiated, further reduce the influence of heat on balloon wall thickness, so as to ensure the uniformity of balloon wall thickness and the stability of product, solve the problem of uneven wall thickness caused by heat radiation of balloon in existing hot melt welding technology, by clamping two left-right symmetrical catheter fixing plates on the guide rail, it is convenient to fix the balloon catheter, avoid movement during welding, and improve the use stability. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is a structural schematic diagram of the utility model.

[0010] Fig. 2 It is a structural schematic diagram of the front side of the utility model.

[0011] In the figure: 1 base, 2 fixed frame, 3 guide rail, 4 balloon catheter placing groove, 5 connecting plate, 6 upper heating head, 7 lower heating head, 8 ear plate, 9 heat insulation block, 10 air hole, 11 catheter fixing plate. DETAILED DESCRIPTION

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0013] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0014] See appendix Figs. 1-2 As shown, a balloon catheter welding and fixing device includes a base 1; a fixing frame 2 is fixed on the base 1, and a guide rail 3 is fixed on the fixing frame 2. Several balloon catheter placement slots 4 are provided on the guide rail 3. An upper heating head 6 and a lower heating head 7 are detachably mounted on the front side of the fixing frame 2 via connecting plates 5. The upper heating head 6 and the lower heating head 7 are symmetrically arranged vertically. Ear plates 8 are fixed on both the left and right sides of the fixing frame 2. Heat insulation blocks 9 are detachably mounted on the bottom side of each ear plate 8 via fastening bolts. The heat insulation blocks 9 are located on both sides of the upper heating head 6 and the lower heating head 7, and are slidably connected to the guide rail 3. An air hole is provided in the middle of the fixing frame 2. 10. The vent 10 is located in the middle between the upper heating head 6 and the lower heating head 7. By setting heat insulation blocks 9 on both sides of the upper heating head 6 and the lower heating head 7, the direct radiation of the balloon catheter in the non-welded part is effectively isolated. By opening the vent 10 in the middle of the fixing frame 2, and the vent 10 is located in the middle between the upper heating head 6 and the lower heating head 7, it is convenient to continuously blow air during the welding process, which can quickly remove the excess heat radiated, further reducing the impact of heat on the balloon wall thickness, thereby ensuring the uniformity of the balloon wall thickness and the stability of the product, and solving the problem of uneven wall thickness caused by heat radiation of the balloon in the existing hot melt welding technology.

[0015] Two symmetrical catheter fixing plates 11 are snapped onto the guide rail 3. By snapping two symmetrical catheter fixing plates 11 onto the guide rail 3, the balloon catheter can be easily fixed, preventing movement during welding and improving the stability of use.

[0016] Working principle: the balloon catheter to be welded is placed in the balloon catheter placing groove 4 of the guide rail 3, and the welding part of the balloon catheter is located in the middle part between the upper heating head 6 and the lower heating head 7, the balloon catheter is heated and welded through the upper heating head 6 and the lower heating head 7, the heat insulation block 9 is arranged on both sides of the upper heating head 6 and the lower heating head 7, which effectively insulates the direct radiation of the balloon catheter in the non-welding part, and the air hole 10 is arranged in the middle part of the fixing frame 2, and the air hole 10 is located in the middle part between the upper heating head 6 and the lower heating head 7, which facilitates continuous blowing during welding, can quickly take away the excess heat radiated, further reduces the influence of heat on the balloon wall thickness, thereby ensuring the uniformity of the balloon wall thickness and the stability of the product, solving the problem of uneven wall thickness of the balloon caused by heat radiation in the existing hot melt welding technology, the balloon catheter placing groove 4 is provided with a plurality of balloon catheter placing grooves, which facilitates welding of multiple groups of balloon catheters at a time, improves the processing efficiency, and the two left-right symmetrical catheter fixing plates 11 are clamped on the guide rail 3, which facilitates fixing the balloon catheter and avoids movement during welding, thereby improving the use stability.

[0017] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model, therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model, and any figure mark in the claims should not be regarded as limiting the involved claims.

[0018] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be combined to form other embodiments that those skilled in the art can understand.

Claims

1. A balloon catheter welding fixture comprising a base, characterized by: The base is fixed with a fixing frame, the fixing frame is fixed with a guide rail, a plurality of balloon catheter placing grooves are formed in the guide rail, the front side of the fixing frame is respectively detachably installed with an upper heating head and a lower heating head through connecting plates, the upper heating head and the lower heating head are symmetrically arranged, the left and right sides of the fixing frame are both fixed with an ear plate, the bottom side of the ear plate is detachably installed with a heat insulation block through a fastening bolt, the heat insulation block is located on the left and right sides of the upper heating head and the lower heating head, and the heat insulation block is slidably connected with the guide rail, and a gas hole is formed in the middle of the fixing frame.

2. The balloon catheter welding fixture of claim 1, wherein: Two left-right symmetrical catheter fixing plates are clamped on the guide rail.

Images