A processing tool for fixing the shape of the distal end of a medical catheter balloon

Abstract

The utility model discloses a kind of processing frock for medical catheter balloon distal end shape point glue fixing, it is related to medical instrument production technical field, including upper positioning member and lower positioning member;Detachable connecting piece is provided between the upper positioning member and lower positioning member, and upper positioning member and lower positioning member are used to centrally position catheter balloon assembly, and a plurality of first linear grooves for positioning net basket supporting arm are distributed equidistantly on the upper positioning member.The utility model centrally positions catheter balloon assembly by upper positioning member and lower positioning member, and rely on the first linear groove that is evenly distributed in circumference to make multiple net basket supporting arms evenly separate, so it can guarantee that the distal end of multiple net basket supporting arms evenly encircles the distal end distribution of catheter balloon assembly, to facilitate guarantee the effect after bonding, ensure the use effect in operation.

Description

Technical Field

[0001] This utility model relates to the field of medical device manufacturing technology, and in particular to a processing tool for fixing the shape of the distal end of a medical catheter balloon with adhesive. Background Technology

[0002] In interventional treatment applications, interventional medical devices are receiving increasing attention and are gradually being widely promoted and applied. The distal part of the device is the front working part of the entire interventional medical device. During operation, the distal part is delivered to the patient's location through the channels established in the body, along with the catheter, via blood vessels, respiratory tract, digestive tract, or other natural cavities of the body, such as the common basket catheter interventional device.

[0003] Existing basket catheter interventional devices include a catheter balloon assembly and a basket. The basket is made of metal wire made of shape memory materials such as nickel-titanium alloy and consists of multiple arms. During assembly and installation, since the proximal ends of the different arms of the basket are connected together, they can be directly wound around the proximal end of the catheter balloon assembly. The distal ends of the basket arms are generally fixed by adhesive bonding using a metal post at the tip.

[0004] However, when applying adhesive to the distal end of the existing catheter balloon assembly to attach the basket arm, it is not easy to evenly separate the basket arm, resulting in an uneven distribution of the basket arm. This causes the distal shape of the interventional device to not adapt well to different lesion sites, which not only affects the efficiency of the operation, but also causes pain for the patient, increases the risk, and wastes the whole tooling when it is replaced. Utility Model Content

[0005] The purpose of this utility model is to provide a processing tool for fixing the shape of the distal end of a medical catheter balloon with adhesive, so as to solve the technical problem in the prior art that it is not easy to evenly separate the basket support arms when bonding the distal end of the catheter balloon assembly, resulting in poor assembly effect and affecting use.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution: A processing tool for fixing the distal shape of a medical catheter balloon with adhesive, comprising an upper positioning component and a lower positioning component; A detachable connector is provided between the upper positioning component and the lower positioning component, and the upper positioning component and the lower positioning component are used to center the catheter balloon assembly. The upper positioning component has a plurality of first straight grooves distributed circumferentially at equal intervals for positioning the net basket support arm.

[0007] Preferably, the upper positioning member includes an upper positioning block, and a first circular groove for positioning the catheter balloon assembly is centrally formed on the side of the upper positioning block near the lower positioning member. A plurality of first straight grooves are circumferentially equidistantly distributed on the side of the upper positioning block near the lower positioning member, and each first straight groove extends to the inner center of the first circular groove. A first through hole communicating with the first circular groove is also formed at the center of the upper positioning block.

[0008] Preferably, the lower positioning member includes a lower positioning block, and the lower positioning block has a second circular groove for positioning the proximal end of the catheter balloon assembly centered on the side near the upper positioning member, and a second through hole communicating with the second circular groove is formed at the center of the lower positioning block.

[0009] Preferably, the lower positioning block has a plurality of second straight grooves equidistantly spaced on one side of the lower positioning member, and the second straight grooves are aligned with the first straight grooves. Each second straight groove extends to the center of the interior of the second circular groove.

[0010] Preferably, a narrow groove communicating with the second circular groove is provided on one side of the lower positioning block.

[0011] Preferably, the outer wall of the lower positioning block is provided with a V-shaped opening that communicates with the narrow groove.

[0012] Preferably, the detachable connector includes multiple connecting rods, and the upper and lower positioning members are provided with multiple circumferential holes near their edges, with each end of the connecting rod inserted into the corresponding hole.

[0013] Preferably, the tooling further includes a support mechanism for supporting the upper positioning component and the lower positioning component. The support mechanism includes a support base plate and a support rod. The support rod is vertically fixedly connected to the support base plate. The upper positioning component and the lower positioning component are arranged in parallel above the support base plate, and both the upper positioning component and the lower positioning component are connected to the support rod.

[0014] Preferably, both the upper and lower positioning members have through holes on one side, and the support rod passes vertically through the through holes of the upper and lower positioning members in sequence. Both the upper and lower positioning members can slide along the support rod, and both the upper and lower positioning members are also provided with locking mechanisms.

[0015] Preferably, the locking mechanism includes a fastening bolt, and each of the upper and lower positioning members has a threaded through hole communicating with the corresponding through hole on one side, and the threaded through hole is configured to cooperate with the fastening bolt.

[0016] The beneficial effects of this utility model are: 1. This utility model uses the upper and lower positioning components to centrally position the catheter balloon assembly, and relies on the circumferentially evenly distributed first straight grooves to evenly separate multiple basket arms. This ensures that the distal ends of the multiple basket arms are evenly distributed around the distal end of the catheter balloon assembly, thereby facilitating the adhesion effect and ensuring the effectiveness of use during the operation.

[0017] 2. The detachable connecting part between the upper positioning part and the lower positioning part of this utility model is a connecting rod of different sizes that can be detached and replaced, which makes it convenient to select the corresponding size based on the size specifications of the catheter balloon assembly, thereby making it easy to change the distance between the upper positioning part and the lower positioning part, and to adapt to various catheter balloon assemblies of different sizes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the upper positioning component in this utility model; Figure 3 This is a structural schematic diagram of the lower positioning component in this utility model; Figure 4 This is a schematic diagram showing the balloon catheter assembly in this utility model assembled between the upper and lower positioning components.

[0019] Explanation of reference numerals in the attached figures: 1. Upper positioning component; 11. Upper positioning block; 12. First circular groove; 13. First straight groove; 14. First through hole; 2. Lower positioning component; 21. Lower positioning block; 22. Second circular groove; 23. Second straight groove; 24. Second through hole; 25. Narrow groove; 3. Support base plate; 4. Support rod; 5. Fastening bolt; 6. Connecting rod; 7. Insertion hole; 8. Through hole; 9. Threaded through hole; 10. Catheter balloon assembly; 101. Balloon body; 102. Balloon catheter; 103. Net basket support arm. Detailed Implementation

[0020] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0021] like Figures 1-4As shown, a processing tool for dispensing and fixing the distal shape of a medical catheter balloon is used to position and connect the distal end of the basket arm 103 of the catheter balloon assembly 10. Here, the catheter balloon assembly 10 includes a balloon body 101 and a balloon catheter 102. The balloon catheter 102 is already connected to the balloon body 101. At this point, the processed catheter balloon assembly 10 has been connected to the proximal end of the basket arm 103. The proximal end of the basket arm 103 is a single unit, pre-wound to the proximal end of the catheter balloon assembly 10 and fixed by locking devices such as a sleeve. The distal end of the basket arm 103 is separate, therefore, it is necessary to determine how to position and connect the distal end of the basket arm 103 to the distal end of the catheter balloon assembly 10. The process ensures that the basket arms 103 are evenly distributed around the distal end of the catheter balloon assembly 10. The processing tooling includes an upper positioning component 1 and a lower positioning component 2, with a detachable connector between the upper positioning component 1 and the lower positioning component 2. The upper positioning component 1 and the lower positioning component 2 are used to center and position the catheter balloon assembly 10. The upper positioning component 1 has a plurality of first straight grooves 13 circumferentially distributed at equal intervals for positioning the basket arms 103. That is, the number of first straight grooves 13 corresponds to the number of basket arms 103. By circumferentially distributing the straight grooves at equal intervals, it can be ensured that the distal ends of each basket arm 103 are circumferentially evenly separated. Then, the distal ends of the basket arms 103 are bonded to the distal ends of the catheter balloon assembly 10, ensuring that the basket arms 103 are evenly distributed.

[0022] In some specific implementation plans, such as Figure 2 As shown, the upper positioning component 1 includes an upper positioning block 11. A first circular groove 12 for positioning the distal end of the catheter balloon assembly 10 is centrally located on the side of the upper positioning block 11 near the lower positioning component 2. A plurality of first straight grooves 13 are circumferentially distributed at equal intervals on the side of the upper positioning block 11 near the lower positioning component 2, and each first straight groove 13 extends to the center of the interior of the first circular groove 12. A first through hole 14 communicating with the first circular groove 12 is also provided at the center of the upper positioning block 11. The first through hole 14 facilitates the insertion of the distal end of the catheter balloon assembly 10. The distributed first straight grooves 13 facilitate the even placement of the basket support arm 103, ensuring that the distal ends of the basket support arm 103 are evenly separated and can be inserted into the first circular groove 12 to be bonded to the distal end connection position of the catheter balloon assembly 10.

[0023] In some specific implementation plans, such as Figure 3 As shown, the lower positioning component 2 includes a lower positioning block 21, and a second circular groove 22 for positioning the proximal end of the catheter balloon assembly 10 is centrally located on the side of the lower positioning block 21 near the upper positioning component 1. A second through hole 24 communicating with the second circular groove 22 is provided at the center of the lower positioning block 21. The second circular groove 22 and the first circular groove 12 cooperate to effectively position the catheter balloon assembly 10 at the center of the entire tooling, and the second through hole 24 facilitates the insertion of the proximal end of the catheter balloon assembly 10.

[0024] It should be noted that the upper positioning block 11 and the lower positioning block 21 are designed with corresponding shapes according to actual needs, such as cubes or cross shapes.

[0025] In some specific implementation plans, such as Figure 3 As shown, the lower positioning block 21 has multiple second straight grooves 23 equidistantly spaced on one side near the upper positioning member 1, and the second straight grooves 23 are aligned with the first straight grooves 13. Each second straight groove 23 extends to the center of the second circular groove 22. When the catheter balloon assembly 10 is installed into the upper positioning block 11 and the lower positioning block 21, each basket support arm 103 is first embedded in each second straight groove 23, and then the distal end of each basket support arm 103 is bent and embedded in the corresponding first straight groove 13, and then the bonding process is performed.

[0026] In some specific implementation plans, such as Figure 3 As shown, since the catheter balloon assembly 10 processed by this tooling has been connected to the proximal end of the basket support arm 103, the electrodes have been installed on the basket, and the corresponding wire harnesses have also been connected, in order to avoid the wire harnesses affecting the bonding work, a narrow groove 25 communicating with the second circular groove 22 is provided on one side of the lower positioning block 21. The narrow groove 25 facilitates the gathering and locking of the wire harnesses, preventing them from scattering outside and affecting the bonding work.

[0027] In some specific implementation plans, such as Figure 3 As shown, a V-shaped opening is provided on the outer wall of the lower positioning block 21, which communicates with the narrow groove 25. The V-shaped opening facilitates the guidance of the wire harness to gather and be inserted into the narrow groove 25.

[0028] In some specific implementation plans, combined with Figures 1 to 3 As shown, the detachable connector includes multiple connecting rods 6, preferably four connecting rods 6. The upper positioning member 1 and the lower positioning member 2 are provided with multiple insertion holes 7 circumferentially near their edges. The two ends of each connecting rod 6 are inserted into the corresponding insertion hole 7. The connecting rods 6 have multiple length specifications, which can be selected according to the size of the catheter balloon assembly 10, and then assembled to maintain a suitable distance between the upper positioning member 1 and the lower positioning member 2.

[0029] In some specific implementation plans, such as Figure 1 As shown, the tooling also includes a support mechanism for supporting the upper positioning component 1 and the lower positioning component 2. The support mechanism includes a support base plate 3 and a support rod 4. The support rod 4 is vertically fixed to the support base plate 3. The upper positioning component 1 and the lower positioning component 2 are arranged in parallel above the support base plate 3, and both the upper positioning component 1 and the lower positioning component 2 are connected to the support rod 4.

[0030] The specific connection method is as follows: both the upper positioning component 1 and the lower positioning component 2 have through holes 8 on one side. The support rod 4 passes through the through holes 8 of the upper positioning component 1 and the lower positioning component 2 vertically in sequence. Both the upper positioning component 1 and the lower positioning component 2 can slide along the support rod 4. Both the upper positioning component 1 and the lower positioning component 2 are also equipped with locking mechanisms.

[0031] In some specific implementations, the locking mechanism includes a fastening bolt 5. Both the upper positioning member 1 and the lower positioning member 2 have threaded through holes 9 on one side that communicate with the corresponding through holes 8. Specifically, the threaded through holes 9 can be machined laterally on the side where the upper positioning block 11 and the lower positioning block 21 are aligned with each other. The threaded through holes 9 are set to cooperate with the fastening bolt 5. After the upper positioning member 1 and the lower positioning member 2 are assembled on the support rod 4, a fastening bolt 5 is first screwed into the threaded through hole 9 of the lower positioning member 2 and pressed against the support rod 4 to keep the lower positioning member 2 fixed. Then, the connecting rod 6 is inserted into each of the insertion holes 7 on the lower positioning member 2. Then, the catheter balloon assembly 10 is placed. Finally, the upper positioning member 1 is assembled onto the connecting rod 6 through the insertion holes 7.

[0032] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios: First, apply glue to the corresponding position at the distal end of the catheter balloon assembly 10, and place the catheter balloon assembly 10 into the second circular groove 22 of the lower positioning member 2, with the distal end of the catheter balloon assembly 10 facing upwards. The lower part of the balloon catheter 102 passes through the second through hole 24, while the wire harness is gathered and stored in the narrow groove 25. Then, according to the size of the catheter balloon assembly 10, select a suitable length of connecting rod 6 and insert it into the various insertion holes 7 on the lower positioning block 21. Then, assemble the upper positioning block 11 to the top of the connecting rod 6, so that the first circular groove 1 on the upper positioning block 11... Together with the second circular groove 22 on the lower positioning block 21, the catheter balloon assembly 10 is centered and positioned, and the basket arms 103 distributed on the catheter balloon assembly 10 are respectively placed into the uniformly distributed first straight grooves 13. At the same time, the second straight groove 23 on the lower positioning block 21 can assist in the placement, thereby ensuring that the basket arms 103 are evenly separated and consistent. Since the first straight groove 13 extends to the first circular groove 12, it is convenient for the distal end of the basket arm 103 to be attached to the distal end of the catheter balloon assembly 10.

[0033] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A processing tool for applying adhesive to fix the distal end of a medical catheter balloon, characterized in that, It includes an upper positioning component (1) and a lower positioning component (2); A detachable connector is provided between the upper positioning member (1) and the lower positioning member (2), and the upper positioning member (1) and the lower positioning member (2) are used to center the catheter balloon assembly (10). The upper positioning member (1) has a plurality of first straight grooves (13) equidistantly distributed in the circumferential direction for positioning the basket support arm (103).

2. The processing fixture for fixing the distal shape of a medical catheter balloon with adhesive as described in claim 1, characterized in that, The upper positioning member (1) includes an upper positioning block (11). The upper positioning block (11) has a first circular groove (12) for positioning the catheter balloon assembly (10) centered on the side near the lower positioning member (2). A plurality of first straight grooves (13) are circumferentially distributed on the side of the upper positioning block (11) near the lower positioning member (2), and each first straight groove (13) extends to the center of the first circular groove (12). The center of the upper positioning block (11) also has a first through hole (14) communicating with the first circular groove (12).

3. The processing fixture for fixing the distal shape of a medical catheter balloon with adhesive as described in claim 1, characterized in that, The lower positioning component (2) includes a lower positioning block (21), and a second circular groove (22) for positioning the proximal end of the catheter balloon assembly (10) is provided on the side of the lower positioning block (21) near the upper positioning component (1). A second through hole (24) communicating with the second circular groove (22) is provided at the center of the lower positioning block (21).

4. The processing fixture for fixing the distal shape of a medical catheter balloon with adhesive as described in claim 3, characterized in that, The lower positioning block (21) has a plurality of second straight grooves (23) equidistantly spaced on one side near the upper positioning member (1), and the second straight grooves (23) are aligned with the first straight grooves (13). Each second straight groove (23) extends to the center of the interior of the second circular groove (22).

5. The processing fixture for fixing the distal shape of a medical catheter balloon with adhesive as described in claim 3, characterized in that, The lower positioning block (21) has a narrow groove (25) on one side that communicates with the second circular groove (22).

6. The processing fixture for fixing the distal shape of a medical catheter balloon with adhesive as described in claim 5, characterized in that, The lower positioning block (21) has a V-shaped opening on its outer wall that communicates with the narrow groove (25).

7. The processing fixture for fixing the distal shape of a medical catheter balloon with adhesive as described in claim 1, characterized in that, The detachable connector includes multiple connecting rods (6). The upper positioning member (1) and the lower positioning member (2) are provided with multiple circumferential holes (7) near the edge. The two ends of each connecting rod (6) are respectively inserted into the corresponding puncture hole (7).

8. The processing fixture for fixing the distal shape of a medical catheter balloon with adhesive as described in claim 1, characterized in that, It also includes a support mechanism for supporting the upper positioning member (1) and the lower positioning member (2). The support mechanism includes a support base plate (3) and a support rod (4). The support rod (4) is vertically fixed on the support base plate (3). The upper positioning member (1) and the lower positioning member (2) are arranged in parallel above the support base plate (3) in sequence, and both the upper positioning member (1) and the lower positioning member (2) are connected to the support rod (4).

9. The processing fixture for fixing the distal shape of a medical catheter balloon with adhesive as described in claim 8, characterized in that, Both the upper positioning member (1) and the lower positioning member (2) have through holes (8) on one side. The support rod (4) passes through the through holes (8) of the upper positioning member (1) and the lower positioning member (2) vertically in sequence. Both the upper positioning member (1) and the lower positioning member (2) can slide along the support rod (4). Both the upper positioning member (1) and the lower positioning member (2) are also provided with locking mechanisms.

10. The processing fixture for fixing the distal shape of a medical catheter balloon with adhesive as described in claim 9, characterized in that, The locking mechanism includes a fastening bolt (5). The upper positioning member (1) and the lower positioning member (2) are provided with threaded through holes (9) on one side that communicate with the corresponding through holes (8). The threaded through holes (9) are configured to cooperate with the fastening bolt (5).

Images