Balloon catheter welding tool and welding device

Abstract

The utility model relates to a balloon catheter welding tool and device. The balloon catheter welding tool and device comprise a driving component, a transmission component, a rotary carrying component and a jacking component. The rotary carrying part comprises two sets of synchronous rotating rollers, a linkage shaft is connected between the two sets of synchronous rotating rollers, and the driving part is connected with one set of synchronous rotating rollers through the transmission part. The welding portion of the balloon catheter is placed between the synchronous rollers, and the jacking component is used for jacking the welding portion subjected to hot air welding to be separated from a hot air welding area. According to the balloon catheter welding tool and the welding device, the uniformity of the connection strength of the welding portion of the balloon catheter outer tube and the hypotube can be guaranteed, and the character of a product is improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a balloon catheter welding tool and a welding device. Background Art

[0002] The structure of balloon dilatation catheter products generally consists of a balloon, an inner tube, an outer tube, a hypotube and a catheter seat.

[0003] In existing balloon catheter products, the parts where the outer tube and the hypotube are connected are generally welded using a hot air welding machine, which is equipped with an air outlet mold. The welding operation steps are to insert the distal end of the hypotube into the outer tube hole by 15mm, and put a heat shrink tube on the welding position. After debugging the welding machine parameters, place the welding position on the air outlet mold, hold the two ends of the welding position with both hands and rotate quickly, and remove it after fixing the welding time.

[0004] When the rapid rotation is controlled by both hands, the welding position is easily offset, the rotation speed is uncontrollable and the rotation speed of both hands is easily inconsistent, resulting in uneven welding strength of the welding points, which seriously affects the performance of the balloon catheter product. Utility Model Content

[0005] The purpose of the present application is to provide a balloon catheter welding tool and a welding device, which can ensure the uniformity of the connection strength of the welding part between the outer tube of the balloon catheter and the sea wave tube, and improve the properties of the product.

[0006] In order to achieve the above-mentioned object, in a first aspect, the utility model provides a balloon catheter welding tool, comprising: a driving component, a transmission component, a rotating supporting component and a lifting component;

[0007] The rotating supporting component comprises two groups of synchronous rollers, a linkage shaft is connected between the two groups of synchronous rollers, and the driving component is connected to one group of the synchronous rollers through the transmission component;

[0008] The welding part of the balloon catheter is placed between the synchronous rollers, and the lifting component is used to lift the welding part after hot air welding to leave the hot air welding area.

[0009] In an optional embodiment, each group of synchronous rollers includes two rotating circular rollers that are arranged in parallel and have the same height, and the rotating circular rollers are installed on a supporting bracket. The two rotating circular rollers have the same size and both ends are flush.

[0010] In an optional embodiment, each group of the synchronous rollers includes a driving roller and a driven roller, respectively, the driving rollers and the driven rollers in the two groups of the synchronous rollers are facing each other front to back, and the linkage shaft is simultaneously connected to the two driving rollers.

[0011] In an optional embodiment, a synchronous belt is arranged between the two rotating circular rollers, and a belt groove for accommodating the synchronous belt is arranged on the outer surface of each rotating circular roller, and the synchronous belt and the belt groove are arranged on both sides of the rotating circular roller.

[0012] In an optional embodiment, the transmission component includes a transmission gear, which includes a driving gear and a driven gear that mesh with each other, and the driven gear is installed at the end of the linkage shaft. The driving component includes a driving shaft, and the driving gear is installed at the end of the driving shaft.

[0013] In an optional embodiment, the supporting bracket includes a bracket and a side plate for mounting the rotating supporting component, the side plates are arranged on both axial sides of the synchronous roller, and an avoidance gap for the balloon catheter to pass through is provided in the middle of the side plate.

[0014] In an optional embodiment, each group of rotating circular rollers is gap-matched, and the avoidance gap is located opposite to the gap between the rotating circular rollers.

[0015] In an optional embodiment, the lifting component is installed between the rotating supporting components and is arranged corresponding to each group of the synchronous rollers, and the lifting component is installed on the side of the supporting bracket.

[0016] In an optional embodiment, the lifting component includes a cylinder, the cylinder includes a vertically arranged telescopic rod, the top end of the telescopic rod is connected to a bearing support for receiving the balloon catheter, the bearing support includes an arc-shaped bent plate, and the arc-shaped bent plate extends along the axial direction of the synchronous roller.

[0017] In a second aspect, the utility model provides a balloon catheter welding device, comprising a hot air welding machine and a balloon catheter welding tool as described in any one of the aforementioned embodiments, wherein the air outlet of the hot air welding machine corresponds to the area between two groups of synchronous rollers.

[0018] By setting up a rotating supporting component and the two sets of synchronous rollers it includes, combined with placing the welding part of the balloon catheter between two different sets of rollers, the connecting part between the outer tube of the balloon catheter and the sea wave tube can be hot-air welded while the balloon catheter is supported and rotated.

[0019] This arrangement effectively avoids the operational deviation caused by manual rotation of both hands. By placing the two sides of the balloon catheter on two sets of synchronous rollers respectively and combining the linkage shafts connected between the two sets of synchronous rollers, the two sets of synchronous rollers can be rotated at the same speed. Furthermore, the balloon catheter parts mounted on the synchronous rollers on both sides also keep synchronous rotation, thereby achieving the overall synchronous rotation of the balloon catheter as a whole, and further, achieving the overall synchronous rotation of the balloon catheters on both sides of the welding part, so as to achieve the technical purpose of improving the welding operation.

[0020] After hot air welding is completed, the welding part of the balloon catheter after hot air welding can be lifted up by a lifting component, and then separated from the hot air welding area, so as to facilitate the unloading of the balloon catheter on the welding tooling after welding is completed.

[0021] The balloon catheter welding tooling in the utility model mainly rotates the rotating supporting component under the drive of the driving component and the transmission component, and is combined with a linkage shaft connecting the two groups of synchronous rollers, and the driving component is connected to one of the synchronous rollers through the transmission component, so that the two groups of synchronous rollers can be kept rotating synchronously at the same speed.

[0022] During the welding operation, by placing the welding part of the balloon catheter in the gap space of the synchronous rollers and placing the two sides of the joint of the hypotube and the outer tube on two sets of synchronous rollers respectively, the balloon catheter parts on both sides of the welding part can be rotated at the same speed, and the welding parts can be hot-air welded under the action of the hot-air welding machine, thus avoiding the operational deviation caused by manual rotation to a great extent and fundamentally ensuring the uniformity of the welding strength of the welding points.

[0023] By placing the welding part of the balloon catheter between the synchronous rollers and making the hot air outlet of the hot air welding machine correspond to the gap area between the synchronous rollers, the welding part of the balloon catheter can be hot-air welded.

[0024] After hot air welding is completed, the welding part is lifted by the lifting component, so that the joint part of the outer tube and the hypotube is lifted and separated from the hot air welding area, which is convenient for unloading and taking of the product.

[0025] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a schematic diagram of the structure of the balloon catheter welding tooling in this application;

[0028] Figure 2 It is a side view structural schematic diagram of the rotating supporting component in this application;

[0029] Figure 3 It is a structural schematic diagram of a balloon catheter welding device;

[0030] Figure 4 It is a structural schematic diagram of the jacking component.

[0031] icon:

[0032] 1-driving motor; 11-driving shaft;

[0033] 2-transmission component; 21-driving gear; 22-driven gear;

[0034] 3-rotating supporting component; 31-supporting bracket; 32-synchronous roller; 33-rotating round roller; 33a-active roller; 33b-driven roller; 34-synchronous belt; 35-bracket; 36-side plate; 37-avoidance gap;

[0035] 4-Linkage axis;

[0036] 5-lifting component; 51-cylinder; 52-telescopic rod; 53-carrying bracket;

[0037] 6-Hot air welding machine;

[0038] 7- Air pump. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0041] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] See also Figure 1 The overall structure of the balloon catheter welding tooling is combined with Figure 2 as well as Figure 3 The balloon catheter welding tool in the present application is mainly used to improve the welding conditions of the balloon catheter. By making the balloon catheters on both sides of the welding part rotate synchronously in the same direction, the insertion part can be evenly rotated under the premise that the distal end of the sea wave tube is inserted into the proximal end of the outer tube, driven by the synchronous rotation of the balloon catheters on both sides of it, so as to enhance the uniformity of the welding strength.

[0043] Combination Figure 1 The balloon catheter welding tooling in the utility model has a main structure including: a driving component, a transmission component 2, a rotating supporting component 3 and a lifting component 5.

[0044] The rotating supporting component 3 is specifically used to support the balloon catheter parts on both sides of the welding part, and drive the balloon catheters on both sides of the welding part to rotate synchronously.

[0045] The driving component is mainly used to provide power for the rotating supporting component 3 to rotate. The transmission component 2 specifically transmits the power torque output by the driving component to the rotating supporting component 3. The lifting component 5 lifts the welding part after the welding part is welded, separates it from the hot air welding area, and takes the welded balloon catheter to complete the welding operation of the balloon catheter.

[0046] The balloon catheter is supported by the rotating support component 3. Specifically, the rotating support component 3 includes two groups of synchronous rollers 32. By connecting the linkage shaft 4 between the synchronous rollers 32, the two groups of synchronous rollers 32 can rotate at the same speed.

[0047] More specifically, among the two groups of synchronous rollers 32, one group of synchronous rollers 32 is connected to the transmission component 2, and combined with the driving rotation of the driving component, it drives the group of synchronous rollers 32 to rotate, and then combined with the linkage shaft 4, the two groups of synchronous rollers 32 rotate synchronously in the same direction.

[0048] When hot air welding the welding part of the balloon catheter, the balloon catheters on both sides of the insertion part, that is, the welding part, are placed in the gap between each group of synchronous rollers 32, and the welding part is suspended in the gap area between the two groups of synchronous rollers 32. In combination, the air outlet of the hot air welding machine 6 blows hot air toward the welding part, so that the welding part is heat-sealed while rotating.

[0049] After the heat sealing welding is completed, the lifting component 5 is used to lift the welding part after hot air welding, so that the welding part is separated from the hot air welding area and lifted, which is beneficial to the unloading of the balloon catheter after welding and the subsequent installation of the balloon catheter to be welded.

[0050] In one specific embodiment, each group of synchronous rollers 32 includes two rotating circular rollers 33 arranged in parallel and at the same height. Each pair of rotating circular rollers 33 are clearance-matched, so that the balloon catheter can be supported in the gap between the two rotating circular rollers 33 and can facilitate the rotation of its non-welded portion in the gap.

[0051] The rotating roller 33 is specifically installed on the supporting bracket 31, and the supporting bracket 31 constitutes a supporting and mounting mechanism for the rotating roller 33. The two rotating rollers 33 have the same size, including the same diameter and length, and the two ends of the two rotating rollers 33 in each group of synchronous rollers 32 are arranged flush, which can form a relatively stable balloon catheter loading gap and facilitate the installation of the rotating roller 33 on the supporting bracket 31.

[0052] With respect to the setting of two groups of synchronous rollers 32 , the hypotube portion can be placed on one side of the synchronous rollers 32 , and the outer tube portion can be placed on the other side of the synchronous rollers 32 , thereby achieving the technical effect of the two groups of synchronous rollers 32 synchronously carrying the balloon catheter.

[0053] In this embodiment, each group of synchronous rollers 32 includes a driving roller 33a and a driven roller 33b, respectively. The driving rollers 33a and the driven rollers 33b in the two groups of synchronous rollers 32 are facing each other front to back, and the front to back direction corresponds to the axial mounting of the balloon catheter on the synchronous rollers 32.

[0054] The linkage shaft 4 is connected to two active rollers 33a at the same time, so that the active rollers 33a in the two groups of synchronous rollers 32 can rotate synchronously, and at the same time, the driven rollers 33b in each group of synchronous rollers 32 can be driven to rotate synchronously.

[0055] From the perspective of the synchronous rotation of the two rotating round rollers 33 in each group of synchronous rollers 32 in the same direction, a synchronous belt 34 is arranged between the two rotating round rollers 33 in each group of synchronous rollers 32, so that the active roller 33a in each group of synchronous rollers 32 can drive the driven roller 33b to rotate under the cooperation relationship between the above-mentioned active roller 33a and the driven roller 33b.

[0056] Furthermore, based on the connection of the linkage shaft 4 to the active rollers 33 a in the two sets of synchronous rollers 32 , all the rotating rollers 33 can be kept rotating synchronously in the same direction through the synchronous belt 34 under the drive of the driving component and the transmission component 2 .

[0057] The outer surface of each rotating roller 33 is provided with a belt groove for accommodating a synchronous belt 34, and the synchronous belt 34 and the belt groove are provided on both sides of the rotating roller 33. In other words, two sets of synchronous belts 34 are respectively provided between two rotating rollers 33 in each set of synchronous rollers 32, and are provided on both sides of the axial direction of the rotating roller 33, so as to maintain the reliability of synchronous rotation.

[0058] In another specific embodiment, from the perspective of transmission, the transmission assembly includes a transmission gear, which includes a driving gear 21 and a driven gear 22 that mesh with each other. The driven gear 22 is installed at the end of the linkage shaft 4. Preferably, the driven gear 22 is installed at the end of the linkage shaft 4 facing the transmission component 2. The driving component includes a driving motor 1, and a driving shaft 11 is connected to the driving motor 1. The driving gear 21 is installed at the end of the driving shaft 11. Preferably, the driving gear 21 is installed at the end of the driving shaft 11 facing the transmission component 2 to ensure that the output rotational torque of the driving motor 1 is effectively and reliably transmitted.

[0059] The supporting bracket 31 includes a bracket 35 and a side plate 36 for carrying and installing the rotating supporting component 3. The side plates 36 are arranged on both sides of the axial direction of the synchronous roller 32. The linkage shaft 4 is inserted or plugged into the side plates 36, and bearings are installed at the insertion or plugging position, so that the linkage shaft 4 can rotate relative to the supporting bracket 31 and the active roller 33a can be installed on the linkage shaft 4.

[0060] The driven roller 33b is rotatably mounted on the supporting bracket 31 via a driven shaft. Both ends of the driven shaft are plugged into the side plates 36, and bearings are installed at the plug-in positions so that the driven shaft can rotate relative to the supporting bracket 31, ensuring the synchronous rotation of the two rotating rollers 33 in the same direction in each group. The setting of the synchronous belt 34 can enable the two rotating rollers 33 to maintain the same clockwise or counterclockwise rotation. Combined with the linked synchronous rotation of all four rotating rollers 33 in the same direction, the balloon catheter carried on the axial gap of the rotating roller 33 can be rotated.

[0061] Based on the placement of the balloon catheter in the gap between the rotating rollers 33, an avoidance gap 37 for the balloon catheter to pass through is provided in the middle of the side plate 36, and the avoidance gap 37 is opposite to the gap between the rotating rollers 33, which can facilitate the placement and removal of the balloon catheter on the rotating supporting component 3.

[0062] During the specific operation, the balloon catheter can be inserted from the avoidance gap 37 on the supporting bracket 31 on one side and extended toward the other set of rotating circular rollers 33, so that the insertion part of the outer tube of the balloon catheter and the sea wave tube is correspondingly placed between the two sets of synchronous rollers 32; the balloon catheters on both sides of the welding part can also be made to pass through the avoidance gap 37 to both sides respectively, which can also achieve the technical purpose of placing the balloon catheter.

[0063] The lifting component 5 is installed between the rotating supporting components 3, preferably, it is arranged between two groups of synchronous rollers 32, and the lifting component 5 includes two, the two lifting components 5 are respectively arranged corresponding to each group of synchronous rollers 32, and the lifting component 5 is installed on the side of the supporting bracket 31. Preferably, the lifting component 5 is installed on the opposite sides of the two supporting brackets 31, which is conducive to lifting the welding part of this part.

[0064] See also Figure 4 The lifting component 5 includes a cylinder 51, and the cylinder 51 includes a vertically arranged telescopic rod 52. The top of the telescopic rod 52 is connected to a bearing support 53 for receiving the balloon catheter. The bearing support 53 includes an arc-shaped bent plate, which is bent in the width direction and extends in a straight line in the length direction. Furthermore, the length direction of the arc-shaped bent plate extends along the axial direction of the synchronous roller 32, which can conform to the axial installation of the balloon catheter, and is conducive to the lifting of the welding part.

[0065] Combination Figure 3 The utility model also provides a balloon catheter welding device, including a hot air welding machine 6 and the balloon catheter welding tooling described above. The air outlet of the hot air welding machine 6 is correspondingly arranged in the area between the two groups of synchronous rollers 32, and hot air welding can be performed on the welding parts placed in the axial gap area between the two groups of synchronous rollers 32.

[0066] The balloon catheter welding device in the utility model also includes a control unit. The cylinder 51 is connected to the air pump 7 through an air pipe. The air pump 7, the hot air welding machine 6 and the drive motor 1 are electrically connected to the control unit respectively. During the specific operation process, the control unit can control the operation rhythm.

[0067] In specific operation, the parameters of the hot air welding machine 6 are set, the joint part of the product outer tube and the hypotube is adjusted, placed between the two sets of synchronous rollers 32, and the rotating motor is turned on. The driving motor 1 drives the active roller 33a of the right synchronous roller 32 and the left synchronous roller 32 in the figure to start rotating through the transmission gear. The active roller 33a and the driven roller 33b are connected by a synchronous belt 34, that is, the driven roller 33b is driven to rotate in the same direction as the active roller 33a, driving the balloon catheter to rotate.

[0068] The hot air welding machine 6 is used to heat-seal the welding parts while rotating. After the welding is completed, the control unit controls the air pump 7 to operate, and then controls the cylinder 51 to lift the balloon catheter, and finally completes the welding operation of the balloon catheter.

[0069] It should be noted that, in the absence of conflict, the features in the embodiments of this application may be combined with each other.

[0070] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A balloon catheter welding tool, characterized in that: include: Driving parts, transmission parts, rotating supporting parts and lifting parts; The rotating supporting component comprises two groups of synchronous rollers, a linkage shaft is connected between the two groups of synchronous rollers, and the driving component is connected to one group of the synchronous rollers through the transmission component; The welding part of the balloon catheter is placed between the synchronous rollers, and the lifting component is used to lift the welding part after hot air welding to leave the hot air welding area.

2. The balloon catheter welding tool according to claim 1, characterized in that: Each group of synchronous rollers includes two rotating circular rollers which are arranged in parallel and have the same height. The rotating circular rollers are installed on a supporting bracket. The two rotating circular rollers have the same size and both ends are flush.

3. The balloon catheter welding tool according to claim 2, characterized in that: Each group of synchronous rollers comprises a driving roller and a driven roller respectively. The driving rollers and the driven rollers in the two groups of synchronous rollers are facing each other front and back, and the linkage shaft is connected to the two driving rollers at the same time.

4. The balloon catheter welding tool according to claim 2, characterized in that: A synchronous belt is arranged between the two rotating rollers, and a belt groove for accommodating the synchronous belt is arranged on the outer surface of each rotating roller, and the synchronous belt and the belt groove are arranged on both sides of the rotating roller.

5. The balloon catheter welding tool according to claim 1, characterized in that: The transmission component includes a transmission gear, and the transmission gear includes a driving gear and a driven gear that mesh with each other. The driven gear is installed at the end of the linkage shaft. The driving component includes a driving shaft, and the driving gear is installed at the end of the driving shaft.

6. The balloon catheter welding tool according to claim 2, characterized in that: The supporting bracket includes a bracket and a side plate for mounting the rotating supporting component. The side plates are arranged on both axial sides of the synchronous roller, and an avoidance gap for the balloon catheter to pass through is arranged in the middle of the side plates.

7. The balloon catheter welding tool according to claim 6, characterized in that: Each group of rotating circular rollers is gap-matched, and the avoidance gap is opposite to the gap between the rotating circular rollers.

8. The balloon catheter welding tool according to claim 2, characterized in that: The lifting component is installed between the rotating supporting components and is arranged corresponding to each group of the synchronous rollers. The lifting component is installed on the side of the supporting bracket.

9. The balloon catheter welding tool according to claim 2, characterized in that: The lifting component includes a cylinder, and the cylinder includes a vertically arranged telescopic rod. The top end of the telescopic rod is connected to a bearing bracket for receiving the balloon catheter. The bearing bracket includes an arc-shaped bent plate, and the arc-shaped bent plate extends along the axial direction of the synchronous roller.

10. A balloon catheter welding device, characterized in that: It comprises a hot air welding machine and a balloon catheter welding tool as described in any one of claims 1 to 9, wherein the air outlet of the hot air welding machine corresponds to the area between two groups of synchronous rollers.

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