Balloon catheter weighing assembly

Abstract

The utility model relates to a balloon catheter weighing assembly. The balloon catheter weighing assembly comprises a weighing disc and a weighing cylinder which are arranged in a split mode. The weighing cylinder comprises a bearing sinking table used for placing a far-end assembly or the weighing disc in a lap joint mode, the weighing disc comprises an insertion boss, and the insertion boss and the bearing sinking table are oppositely arranged so that the weighing disc can be inserted into the weighing cylinder in a matched mode; the weighing disc comprises a bearing through hole located in the center, the weighing disc is provided with a containing groove used for allowing a guide pipe to be wound and placed, and the containing groove is spirally wound on the disc face of the weighing disc. According to the utility model, products such as catheters can be conveniently weighed, the catheters or balloons can be independently weighed, the risk of structural damage of the products can be avoided, and convenient weighing operation is facilitated.

Description

Technical Field

[0001] This application relates to the field of medical device auxiliary tooling technology, and more specifically, to a balloon catheter weighing assembly. Background Technology

[0002] With the increasing number of catheter-related products, performance testing of various aspects of different products is becoming more and more important, as it directly relates to product quality and safe and effective use.

[0003] In particular, when it comes to the quality of different structural components or the quality of drug adhesion on distal components, these are essential factors that need to be understood during performance testing. Therefore, it is necessary to know the actual weight of catheter products when conducting certain inspections and tests.

[0004] The existing tubing is too long to be weighed directly. The product needs to be folded multiple times before being weighed on a balance. The folding process can easily damage the product structure. Once the product is damaged, it becomes unusable and must be scrapped, resulting in serious waste. Utility Model Content

[0005] The purpose of this application is to provide a balloon catheter weighing component that can conveniently weigh catheter products, independently weigh catheters or balloons, avoid the risk of structural damage to the products, and facilitate convenient weighing operations.

[0006] To achieve the above objectives, this utility model provides a balloon catheter weighing assembly, including a separately configured weighing pan and a weighing cylinder;

[0007] The weighing cylinder includes a receiving platform for placing a remote component or the weighing pan together. The weighing pan includes an insertion boss, which is disposed opposite to the receiving platform so that the weighing pan can be inserted into the weighing cylinder.

[0008] The weighing pan includes a central bearing through hole and a receiving groove for placing a guide tube, the receiving groove being spirally coiled on the surface of the weighing pan.

[0009] In an optional embodiment, the receiving groove includes a recessed groove structure disposed radially outside the bearing through hole, and the receiving groove is formed on the top plate surface of the weighing pan.

[0010] In an optional embodiment, the receiving groove includes a closed end and an open end, the closed end being disposed radially outside the bearing through hole, and the open end being formed on the outer edge of the weighing pan.

[0011] In an optional embodiment, a conduit pressing component is also included. The conduit pressing component is separately disposed from the weighing pan and can be pressed onto the weighing pan to press and fix the conduit placed on the weighing pan.

[0012] In an optional embodiment, the catheter pressing component includes a pressing ring with an integral structure and a plurality of pressing claws connected to the outer edge of the pressing ring. The inner hole of the pressing ring has the same diameter as the bearing through hole and is positioned opposite to it. Each pressing claw is provided with a pressing groove that corresponds vertically to the receiving groove.

[0013] In an optional embodiment, a plurality of press-fit ring positioning posts are evenly distributed circumferentially on the bottom wall of the press-fit ring, and a press-fit claw positioning post is respectively provided on the bottom wall of the end of each press-fit claw.

[0014] The bearing through hole has multiple press-fit ring positioning holes evenly distributed on its radial outer circumference, and the receiving groove has multiple press-fit claw positioning holes evenly distributed on its radial outer circumference.

[0015] The positioning post of the pressing ring is inserted into the positioning hole of the pressing ring, and the positioning post of the pressing claw is inserted into the positioning hole of the pressing claw.

[0016] In an optional embodiment, the insertion boss protrudes from the bottom wall of the weighing pan, and the outline shape of the insertion boss is adapted to the outline shape of the receiving platform, so that the weighing pan can be placed on the weighing cylinder.

[0017] In an optional embodiment, the bearing through hole extends through the thickness of both the weighing plate and the insertion boss.

[0018] In an optional embodiment, the weighing cylinder includes a hollow weighing cylinder body and a base sealing plate located at the bottom of the weighing cylinder body, and the receiving platform is disposed at the top of the weighing cylinder body.

[0019] In an optional embodiment, the depth of the receiving platform is the same as the height of the insertion boss;

[0020] The weighing cylinder includes an internal receiving channel, the inner diameter of which is the same as the inner diameter of the bearing through hole.

[0021] The balloon catheter weighing component of this invention can conveniently and flexibly weigh balloon catheter products. It can weigh the catheter component or the distal balloon component independently. During use, the weighing component with the split structure can be used alone or as a whole after the split structure is assembled, which enhances the flexibility of the weighing operation.

[0022] During the weighing process, the distal component can be placed and supported by the weighing component, and the catheter component can be coiled and contained. This avoids mechanical handling of the balloon catheter product component during the weighing process, reduces the risk of structural damage to the product component, and improves the convenience of the weighing operation.

[0023] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the balloon catheter weighing assembly of this application;

[0026] Figure 2 for Figure 1 A schematic diagram of the side view structure;

[0027] Figure 3 for Figure 2 A schematic diagram of the AA-direction cross-section structure;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the weighing pan;

[0029] Figure 5 This is a side view of the weighing pan.

[0030] Figure 6 for Figure 5 Schematic diagram of the CC-direction cross-section structure;

[0031] Figure 7 This is a schematic diagram of the three-dimensional structure of the weighing cylinder;

[0032] Figure 8 This is a side view of the weighing cylinder.

[0033] Figure 9 for Figure 8 Schematic diagram of the BB-direction cross-section structure;

[0034] Figure 10 This is a schematic diagram of the conduit press fitting.

[0035] icon:

[0036] 1-Weighing pan; 11-Insertion boss; 12-Bearing through hole; 13-Receiving groove; 13a-Closed end; 13b-Open end; 14-Pressure ring positioning hole; 15-Pressure claw positioning hole;

[0037] 2-Weighing cylinder; 21-Receiving platform; 22-Weighing cylinder body; 23-Base sealing plate; 24-Accommodation channel;

[0038] 3-Pressing component for conduit; 31-Pressing ring; 31a-Pressing ring positioning post; 32-Pressing claw; 32a-Pressing claw positioning post; 33-Pressing groove. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0040] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for 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 application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0041] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] The balloon catheter weighing component in this application is mainly used for weighing different components of balloon catheter products. By setting up necessary weighing structures, the weighing requirements of structural components are met with minimal risk of breakage, while minimizing the need for folding or other mechanical processing of the structural components. At the same time, the weighing components can be flexibly selected or combined, improving the convenience and flexibility of operation.

[0043] See Figure 1 , combined Figures 2-3 and combination Figures 4-10The balloon catheter weighing assembly provided by this utility model has a main structure including a weighing pan 1 and a weighing cylinder 2 that are set separately.

[0044] The separate weighing pan 1 and weighing cylinder 2 can be used to weigh the conduit and distal components respectively.

[0045] The weighing cylinder 2 includes a receiving platform 21 for placing the remote component or the weighing pan 1 together. The weighing pan 1 includes an insertion boss 11, which is arranged opposite to the receiving platform 21 so that the weighing pan 1 can be inserted into the weighing cylinder 2.

[0046] The weighing pan 1 includes a central bearing through hole 12, and a receiving groove 13 is provided on the weighing pan 1 for placing the guide tube. The receiving groove 13 is spirally coiled on the surface of the weighing pan 1.

[0047] The weighing pan 1 can be placed on the weighing cylinder 2 by overlapping the receiving platform 21 set on the weighing cylinder 2. By combining the insertion boss 11 set on the weighing pan 1 and the receiving platform 21 set on the weighing cylinder 2, the weighing pan 1 can be inserted and fitted on the weighing cylinder 2, thereby enabling the overall application of the weighing component.

[0048] When used independently or as part of a weighing assembly, the weighing pan 1 can be used to weigh the conduit assembly and / or the distal assembly. The conduit assembly and the distal assembly can be weighed simultaneously by placing them on the weighing pan 1. This allows for the weighing of the conduit assembly and the distal assembly simultaneously when the weighing pan 1 is used independently or when the weighing assembly is used as a whole.

[0049] Alternatively, the conduit assembly or the distal assembly can be placed separately on the weighing pan 1 for independent use of the weighing pan 1 or for individual weighing measurements of different components when the weighing assembly is used as a whole.

[0050] When used independently, the weighing cylinder 2 can be used to weigh remote components. The remote components can be placed on the receiving platform 21 with their tip facing upwards for weighing and measuring the remote components.

[0051] Regardless of the method used, the mass of each component must be obtained by weighing to obtain the total mass, and then by subtracting the mass of the weighing component itself.

[0052] The weighing pan 1 includes a centrally located support through hole 12 for supporting the distal component. The distal component can be placed on the support through hole 12 with its tip facing upward. A receiving groove 13 is provided on the surface of the weighing pan 1 for the placement of the conduit. By spirally winding the conduit on the surface of the weighing pan 1 using the receiving groove 13, the conduit can be coiled and placed in the receiving groove 13, thereby avoiding folding of the conduit and reducing the breakage rate of the conduit assembly.

[0053] In one specific embodiment, the receiving groove 13 includes a recessed groove structure disposed radially outside the bearing through hole 12. Through the recessed groove structure, the conduit can be coiled and placed in the receiving groove 13 to meet the weight-bearing state of the conduit coiling and reduce the structural damage to the conduit caused by folding.

[0054] The receiving groove 13 is opened on the top plate surface of the weighing pan 1, which facilitates the spiraling and winding operation on the weighing pan 1, and also facilitates the placement and removal of the guide tube.

[0055] By placing the receiving groove 13 on the radial outside of the bearing through hole 12, it does not affect the independent placement of the catheter assembly and the distal assembly on the weighing pan 1, thus meeting the requirement of weighing different structural components of the balloon catheter simultaneously.

[0056] From the angle of coiling and winding the conduit, the receiving groove 13 includes a closed end 13a and an open end 13b. The closed end 13a is located on the radial outer side of the bearing through hole 12, and one end of the conduit can be coiled starting from the closed end 13a. At the same time, the open end 13b is opened on the outer edge of the weighing pan 1, and the other end of the conduit can be thrown out from the open end 13b.

[0057] The receiving groove 13 of the settling groove structure can limit and accommodate the guide tube to a certain extent. The side wall of the guide tube is closely fitted with the groove wall of the receiving groove 13, which can maintain the reliability of the guide tube's coiled state.

[0058] In order to ensure the stability of the placement and installation of the conduit, this utility model also includes a conduit pressing component 3 for pressing the conduit cap onto the receiving groove 13. The conduit pressing component 3 is also a separate structure relative to the weighing pan 1, and can be pressed onto the top plate surface of the weighing pan 1 for pressing and fixing the conduit placed on the weighing pan 1.

[0059] In terms of specific composition, the catheter pressing component 3 includes a pressing ring 31 with an integral structure and multiple pressing claws 32 connected to the outer edge of the pressing ring 31. In order to enable the distal component to be placed on the pressing plate after the catheter pressing component 3 is placed on the weighing plate 1, the inner hole of the pressing ring 31 has the same diameter as the bearing through hole 12 and is positioned opposite each other. From this perspective, it does not affect the placement of the catheter component and the distal component on the weighing plate 1. After the catheter pressing component 3 presses the catheter, the distal component can be placed facing upwards in the inner hole of the pressing ring 31.

[0060] Meanwhile, based on the limited accommodation of the conduit in the receiving groove 13, the parts of the conduit that are not in contact with the receiving groove 13 can be pressed and fixed by the conduit pressing component 3.

[0061] Furthermore, in order to prevent the pressing claws 32 from damaging the conduit during pressing, each pressing claw 32 is provided with a pressing groove 33 that corresponds vertically to the receiving groove 13. It should be noted that the receiving groove 13 of the sinkhole structure on the weighing pan 1 is specifically an arc-shaped groove structure, and the pressing groove 33 on the pressing claw 32 is also an arc-shaped groove structure. Based on the spiral winding structure of the receiving groove 13, the pressing groove 33 is also specifically a curved arc segment with a short length. After the conduit pressing component 3 is fastened on the weighing pan 1, the pressing groove 33 and the receiving groove 13 can form a relatively closed circular space, ensuring that the conduit is limited without being directly flattened.

[0062] In order to improve the installation effect of the positioning buckle cover, multiple pressing ring positioning posts 31a are evenly distributed on the bottom wall of the pressing ring 31 in the circumferential direction, and pressing claw positioning posts 32a are respectively provided on the bottom wall of the end of each pressing claw 32.

[0063] Multiple press-fit ring positioning holes 14 are evenly distributed on the radial outer circumference of the bearing through hole 12, and multiple press-fit claw positioning holes 15 are evenly distributed on the radial outer circumference of the receiving groove 13.

[0064] The positioning post 31a of the pressing ring is inserted into the positioning hole 14 of the pressing ring, and the positioning post 32a of the pressing claw is inserted into the positioning hole 15 of the pressing claw.

[0065] The plug-in boss 11 protrudes from the bottom wall of the weighing pan 1. When the weighing pan 1 is used alone, the plug-in boss 11 located at the bottom can be placed on the balance, and the guide tube can be placed in the receiving groove 13 and then fixed by the guide tube pressing part 3. At the same time, the remote component can be placed in the inner hole of the pressing ring 31.

[0066] Furthermore, to facilitate the assembly of the weighing pan 1 and the weighing cylinder 2 into a complete weighing component structure, the outline shape of the insertion boss 11 is adapted to the outline shape of the receiving platform 21, so that the weighing pan 1 can be placed on the weighing cylinder 2. At the same time, by placing the above-mentioned different structural components on the weighing pan 1, the overall weighing application of the assembled weighing component can be completed.

[0067] Furthermore, the depth of the receiving platform 21 is the same as the height of the insertion boss 11, which enables the bottom wall of the weighing pan 1 to be flush with the top wall of the weighing cylinder 2 after assembly, maintaining an effective and complete fit between the two.

[0068] As mentioned above, the remote component can be placed through the bearing through hole 12. The bearing through hole 12 is fully connected in the thickness direction of the symmetrical disk 1 and the insertion boss 11, which can ensure that the bearing through hole 12 has sufficient depth so that at least a part of the bottom of the remote component can extend into the bearing through hole 12, thus ensuring the stability of the remote component.

[0069] In another specific embodiment, the weighing cylinder 2 includes a hollow weighing cylinder body 22 and a base sealing plate 23 located at the bottom of the weighing cylinder body 22. The base sealing plate 23 provides stable support when the weighing cylinder 2 is placed on the balance. The weighing cylinder body 22 is intended to allow at least a portion of the bottom of the distal component to extend into it. Preferably, the receiving platform 21 is located at the top of the weighing cylinder body 22. The weighing cylinder body 22 includes an internal receiving channel 24, the inner diameter of which is the same as the inner diameter of the bearing through hole 12 on the weighing pan 1.

[0070] With this configuration, the remote component can be placed vertically on the step of the receiving platform 21, and at least a portion of it can extend into the receiving channel 24 inside the weighing cylinder 22, ensuring placement stability. Simultaneously, the fitting relationship between the receiving platform 21 and the insertion boss 11 allows the bearing through hole 12 and the receiving channel 24 to form a relatively continuous channel, facilitating stable installation of the remote component whether the weighing pan 1 is used alone or in a combined assembly.

[0071] In the use of the balloon catheter weighing component of this utility model, only the catheter components such as the thiopancreatography tube can be weighed, or only the distal components of the product such as the balloon can be weighed.

[0072] After placing the different structural components of the balloon catheter, they are weighed on a balance. The weight of each component is then subtracted from the weight of the components themselves. This process is simple and easy to perform, while ensuring the integrity of the product.

[0073] It can also help measure the weight of the drug on the drug-eluting balloon catheter. After placing the distal component with the attached drug, with the drug-eluting balloon facing upwards, the weight of the drug on the balloon is obtained by subtracting the weight of the bare balloon.

[0074] It should be noted that the number of spiral turns in the receiving groove 13 and the depth of the sinking structure need to be considered comprehensively. The number of spiral turns is related to whether the product will deform after being coiled. If there are too many turns and they are relatively dense, the smaller the diameter of the weighing pan 1, the greater the risk of bending and deformation of the product, which will affect its use.

[0075] If the number of circles is too small and relatively sparse, the larger the diameter of weighing pan 1, the more likely it is to affect the placement on the balance, which is not conducive to weighing.

[0076] When setting it up, the number of turns needs to be determined based on the model of the suitable balance, the common length of the tubing, and without affecting the appearance of the product. The depth of the receiving groove 13 is determined based on the maximum outer diameter of the product to ensure that the tubing product can be embedded in the receiving groove 13.

[0077] The effective length of the general conduit is about 130-150cm. The diameter of the weighing pan 1 can be selected as 10-12cm, the number of turns can be set to 4-5 turns, and the groove depth can be set to 3-4mm to ensure that the product can be completely embedded in the tooling and is limited and fixed by the conduit pressing part 3.

[0078] When weighing the distal component of the spraying device, the sprayed distal component can be placed on the balloon catheter weighing assembly with the medicated balloon facing upwards. Weigh it, and subtract the weight of the bare balloon to get the weight of the medicated material on the balloon. This can help measure the distribution of the medicated material on each medicated balloon.

[0079] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0080] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A balloon catheter weighing assembly, characterized in that, This includes a separate weighing pan and a weighing cylinder; The weighing cylinder includes a receiving platform for placing a remote component or the weighing pan together. The weighing pan includes an insertion boss, which is disposed opposite to the receiving platform so that the weighing pan can be inserted into the weighing cylinder. The weighing pan includes a central bearing through hole and a receiving groove for placing a guide tube, the receiving groove being spirally coiled on the surface of the weighing pan.

2. The balloon catheter weighing assembly according to claim 1, characterized in that, The receiving groove includes a recessed groove structure disposed radially outside the bearing through hole, and the receiving groove is formed on the top plate surface of the weighing pan.

3. The balloon catheter weighing assembly according to claim 1, characterized in that, The receiving groove includes a closed end and an open end. The closed end is located radially outside the bearing through hole, and the open end is located on the outer edge of the weighing pan.

4. The balloon catheter weighing assembly according to claim 1, characterized in that, It also includes a conduit pressing component, which is separately disposed from the weighing pan and can be pressed onto the weighing pan to press and fix the conduit placed on the weighing pan.

5. The balloon catheter weighing assembly according to claim 4, characterized in that, The catheter pressing component includes a pressing ring with an integral structure and multiple pressing claws connected to the outer edge of the pressing ring. The inner hole of the pressing ring has the same diameter as the bearing through hole and is positioned opposite each other. Each pressing claw is provided with a pressing groove that corresponds to the receiving groove vertically.

6. The balloon catheter weighing assembly according to claim 5, characterized in that, The bottom wall of the pressing ring is circumferentially distributed with multiple pressing ring positioning posts, and each pressing claw is provided with a pressing claw positioning post on the bottom wall of its end. The bearing through hole has multiple press-fit ring positioning holes evenly distributed on its radial outer circumference, and the receiving groove has multiple press-fit claw positioning holes evenly distributed on its radial outer circumference. The positioning post of the pressing ring is inserted into the positioning hole of the pressing ring, and the positioning post of the pressing claw is inserted into the positioning hole of the pressing claw.

7. The balloon catheter weighing assembly according to claim 4, characterized in that, The insertion boss protrudes from the bottom wall of the weighing pan, and the outline shape of the insertion boss is adapted to the outline shape of the receiving platform, so that the weighing pan can be placed on the weighing cylinder.

8. The balloon catheter weighing assembly according to claim 4, characterized in that, The bearing through hole extends through the thickness of both the weighing plate and the insertion boss.

9. The balloon catheter weighing assembly according to claim 4, characterized in that, The weighing cylinder includes a hollow weighing cylinder body and a base sealing plate located at the bottom of the weighing cylinder body, and the receiving platform is located at the top of the weighing cylinder body.

10. The balloon catheter weighing assembly according to claim 9, characterized in that, The depth of the receiving platform is the same as the height of the insertion boss; The weighing cylinder includes an internal receiving channel, the inner diameter of which is the same as the inner diameter of the bearing through hole.

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