A three-cavity tube positioning pin hole fixture

Abstract

The utility model relates to medical instrument processing technical field, concretely relates to a three cavity pipe positioning pin hole clamp, include: positioning subassembly, three cavity pipe, two cutting knife device and fixed base, wherein, positioning subassembly includes: positioning pipe, two positioning steel wires and clamping assembly, wherein, positioning pipe fixedly set up on fixed base, positioning pipe has the closed limiting end and open insertion end, three cavity pipe is placed in the cavity of positioning pipe through insertion end, and clamping assembly fixedly sets up on the wall surface of insertion end, the side wall of positioning pipe is successively provided with limiting observation port, inflation incision and liquid injection incision from limiting end to insertion end, two cutting knife devices are arranged at corresponding inflation incision and corresponding liquid injection incision respectively, the utility model solves the problem that traditional manual pin hole efficiency is low, and the risk is high, and the quality and production efficiency of three cavity pipe trepanning are improved greatly.

Description

Technical Field

[0001] This utility model relates to the field of medical device processing technology, specifically to a three-lumen tube positioning pin hole clamp. Background Technology

[0002] In the field of medical device manufacturing, the three-lumen tube of a disposable stone retrieval balloon requires precisely positioned side holes to accommodate both fluid injection and inflation. However, existing methods for creating these side holes present numerous problems.

[0003] The traditional method of drilling involves manually holding the three-lumen tube and drilling with a drilling machine under the assistance of a magnifying glass. This method has poor positioning accuracy, is prone to deviation, and may even break the internal cavities, leading to product damage and scrap. Furthermore, dust and debris generated during drilling can easily enter the three-lumen tube, increasing cleaning difficulty. In addition, this operation requires a high level of hand-eye coordination from employees, is difficult to train, and poses significant safety hazards.

[0004] In view of the problems of inaccurate positioning, high product scrap rate, high operation requirements and great safety hazards in the existing technology, this utility model provides a three-lumen tube positioning pin hole fixture to improve the accuracy and safety of three-lumen tube opening and reduce the difficulty of operation. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of the existing technology by providing a three-cavity tube positioning pin hole clamp;

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A three-lumen tube positioning pin hole fixture includes: a positioning assembly, a three-lumen tube, two cutting blade devices, and a fixed base;

[0008] The positioning components include: a positioning tube, two positioning steel wires, and a clamping assembly;

[0009] The positioning tube is fixedly set on the fixed base. The positioning tube has a closed limiting end and an open insertion end. The three-lumen tube is placed in the cavity of the positioning tube through the insertion end. The clamping component is fixedly set on the wall of the insertion end.

[0010] The side wall of the positioning tube has a limit observation port, an inflation incision, and an injection incision sequentially opened from the limiting end to the insertion end;

[0011] Two cutting devices are respectively set at the corresponding inflation incision and the corresponding liquid injection incision;

[0012] The cutting device includes: a cutting positioning cylinder fixedly mounted on a fixed base, a cutting blade slidably mounted in the cutting positioning cylinder, a handle fixedly mounted at the end of the cutting blade away from the cutting positioning cylinder, and a return spring;

[0013] Among them, each cutting edge is aligned with the bottom edge of the corresponding air-filled cut and the liquid-filled cut;

[0014] The return spring is sleeved in the outer wall of the cutter, and the two ends of the return spring are fixedly connected to the cutter positioning cylinder and the handle, respectively.

[0015] The two positioning steel wires are respectively matched with the positions of the injection chamber and the inflation chamber in the three-lumen tube.

[0016] Furthermore, the clamping assembly includes: a connector embedded in the wall of the insertion end, a pair of clamping members, and a protective pad;

[0017] One end of each of the two clamping parts is hinged to the two sides of the connector. One clamping part has a fixing screw at the other end, and the other clamping part has a through hole at the other end. The fixing screw passes through the through hole and is locked in place by a wing nut.

[0018] Furthermore, the protective pad is made of medical-grade silicone, and the inner surface of the protective pad has anti-slip texture.

[0019] Furthermore, the fixed base includes: a base body and two support rods;

[0020] The base body is fixedly set at the bottom of the positioning tube, and the lower ends of the two support rods are fixedly set on the upper surface of the base body. The upper ends of the two support rods are respectively fixedly connected to the side wall of the corresponding cutter positioning cylinder.

[0021] Furthermore, the cutting edge of the blade is U-shaped.

[0022] Furthermore, the outer circumference of the handle is provided with anti-slip knurling.

[0023] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0024] In summary, this utility model achieves precise positioning of the three-lumen tube through the positioning component, makes the hole-opening operation convenient and accurate through the cutting device, realizes automatic reset of the cutting tool through the return spring, ensures the stability of the three-lumen tube through the clamping component, and provides stable support through the fixed base. It solves the problems of low efficiency and high risk of traditional manual pin hole opening, and greatly improves the quality and production efficiency of three-lumen tube hole opening. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the axial side structure of this utility model;

[0026] Figure 2 This is an enlarged structural diagram of region A in this utility model;

[0027] Figure 3This is an enlarged structural diagram of region B in this utility model;

[0028] Figure 4 This is a side view of the structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the axial structure of the cutting device in this utility model;

[0030] Figure 6 This is a schematic diagram of the axial structure of the three-lumen tube in this utility model;

[0031] The reference numerals in the attached figures are:

[0032] 1. Positioning assembly; 11. Positioning tube; 111. Limiting observation port; 112. Inflation inlet; 113. Injection inlet; 13. Positioning wire; 14. Clamping assembly; 141. Connector; 142. Clamping component; 143. Protective pad; 144. Fixing screw; 145. Wing nut; 2. Three-lumen tube; 3. Cutting device; 31. Cutting positioning cylinder; 32. Cutting blade; 321. Blade edge; 33. Handle; 34. Return spring; 4. Fixed base; 41. Base body; 42. Support rod. Detailed Implementation

[0033] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0036] Example

[0037] This embodiment provides a three-lumen tube positioning pin hole fixture, including: positioning component 1, three-lumen tube 2, two cutting blade devices 3, and fixed base 4;

[0038] The positioning component 1 includes a positioning tube 11, two positioning steel wires 13, and a clamping component 14. The positioning tube 11 is fixedly mounted on the fixed base 4 to provide a placement space for the three-lumen tube 2. The positioning tube 11 has a closed limiting end and an open insertion end. The closed limiting end of the positioning tube 11 can limit the insertion depth of the three-lumen tube 2. The three-lumen tube 2 is placed in the lumen of the positioning tube 11 through the insertion end. The clamping component 14 is fixedly mounted on the wall of the insertion end to securely clamp the three-lumen tube 2 and prevent it from moving during the drilling process.

[0039] The side wall of the positioning tube 11 is provided with a limiting observation port 111, an inflation incision 112, and an injection incision 113 in sequence from the limiting end to the insertion end;

[0040] The limit observation port 111 allows the operator to easily observe whether the three-lumen tube 2 has been pushed to the limit end. The inflation cut 112 and the liquid injection cut 113 provide operating space for the cutter 32, respectively corresponding to the positions on the three-lumen tube 2 where inflation holes and liquid injection holes need to be opened.

[0041] Two cutting devices 3 are respectively set at the corresponding inflation incision 112 and the corresponding liquid injection incision 113, for making corresponding holes on the three-lumen tube 2;

[0042] The cutting device 3 includes: a cutting positioning cylinder 31 fixedly mounted on a fixed base 4, a cutting blade 32 slidably mounted in the cutting positioning cylinder 31, a handle 33 fixedly mounted at one end of the cutting blade 32 away from the cutting positioning cylinder 31, and a return spring 34;

[0043] The blade positioning cylinder 31 guides the blade 32, ensuring that the blade 32 moves in a fixed direction; the handle 33 makes it convenient for the operator to hold and push the blade 32.

[0044] Each cutting edge 321 is aligned with the bottom edge of the corresponding air-filling cut 112 and liquid-filling cut 113 to ensure that the cutter 32 can accurately make holes at the corresponding positions on the three-lumen tube 2.

[0045] The return spring 34 is sleeved in the outer wall of the cutter 32, and the two ends of the return spring 34 are fixedly connected to the cutter positioning cylinder 31 and the handle 33 respectively; when the operator releases the handle 33, the return spring 34 can drive the cutter 32 back to the initial position, which is convenient for the next operation.

[0046] The two positioning steel wires 13 are respectively matched with the positions of the liquid injection chamber and the air filling chamber in the three-lumen tube 2. When the positioning tube 11 is inserted into the three-lumen tube 2, the positioning steel wires 13 can guide the three-lumen tube 2 to be correctly positioned, ensuring that the opening position corresponds to the cavity.

[0047] The clamping assembly 14 includes: a connector 141 embedded in the wall of the insertion end, a pair of clamping members 142, and a protective pad 143;

[0048] One end of each of the two clamping members 142 is hinged to both sides of the connector 141 and can rotate around the hinge point. The other end of one clamping member 142 is provided with a fixing screw 144, and the other end of the other clamping member 142 is provided with a through hole. The fixing screw 144 passes through the through hole and is locked by the thread of the wing nut 145. By tightening the wing nut 145, the two clamping members 142 can be brought closer to each other, thereby clamping the three-lumen tube 2.

[0049] The protective pad 143 is made of medical-grade silicone, which is soft and can prevent damage to the three-lumen tube 2 when clamped. The inner surface of the protective pad 143 is provided with anti-slip texture to increase the friction between it and the three-lumen tube 2 and prevent slippage.

[0050] The fixed base 4 includes: a base body 41 and two support rods 42; the base body 41 is fixedly set at the bottom of the positioning tube 11 to provide stable support for the entire device; the lower ends of the two support rods 42 are fixedly set on the upper surface of the base body 41; the upper ends of the two support rods 42 are respectively fixedly connected to the side wall of the corresponding cutter positioning cylinder 31 to further fix the cutter positioning cylinder 31 and enhance the stability of the cutter device 3.

[0051] The cutting edge of the cutter 32 is U-shaped, which makes the edges of the holes regular and meets the usage requirements;

[0052] The outer circumference of the handle 33 is provided with anti-slip knurling to increase the friction when the operator holds it, prevent the hand from slipping, and make it easier to push the cutter 32 with force.

[0053] In use, align the injection chamber and inflation chamber of the three-lumen tube 2 with the two positioning wires 13 respectively, insert it from the insertion end of the positioning tube 11 until the end of the three-lumen tube 2 contacts the limiting end of the positioning tube 11, and confirm that the three-lumen tube 2 is in place through the limiting observation port 111; then operate the clamping assembly 14, rotate the two clamping parts 142 so that the protective pad 143 fits against the outer wall of the three-lumen tube 2, pass the fixing screw 144 through the through hole, tighten the wing nut 145, and firmly clamp the three-lumen tube 2.

[0054] The operator holds the handle 33 and pushes the cutter 32 toward the positioning tube 11. The cutter 32 moves under the guidance of the cutter positioning cylinder 31. The cutting edge 321 opens a corresponding hole in the three-lumen tube 2 through the air inlet 112 or the liquid injection inlet 113. After the hole is opened, the operator releases the handle 33. Under the action of the return spring 34, the cutter 32 returns to its original position. Finally, the operator releases the wing nut 145, opens the clamping part 142, and takes out the processed three-lumen tube 2.

[0055] In summary, this utility model achieves precise positioning of the three-lumen tube through the positioning component, makes the hole-opening operation convenient and accurate through the cutting device, realizes automatic reset of the cutting tool through the return spring, ensures the stability of the three-lumen tube through the clamping component, and provides stable support through the fixed base. It solves the problems of low efficiency and high risk of traditional manual pin hole opening, and greatly improves the quality and production efficiency of three-lumen tube hole opening.

[0056] The above description of this utility model is merely a preferred embodiment of this utility model and does not limit the implementation method and protection scope of this utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of this utility model should be included within the protection scope of this utility model.

Claims

1. A three-lumen tube positioning pin hole clamp, characterized in that, include: Positioning assembly (1), three-lumen tube (2), two-cutting device (3), and fixed base (4); The positioning component (1) includes: a positioning tube (11), two positioning steel wires (13), and a clamping component (14); The positioning tube (11) is fixedly disposed on the (4), the positioning tube (11) has a closed limiting end and an open insertion end, the three-lumen tube (2) is placed in the cavity of the positioning tube (11) through the insertion end, and the clamping assembly (14) is fixedly disposed on the wall surface of the insertion end. The sidewall of the positioning tube (11) is provided with a limiting observation port (111), an inflation incision (112), and an injection incision (113) in sequence from the limiting end to the insertion end; The two cutting devices (3) are respectively disposed at the corresponding inflation incision (112) and the corresponding liquid injection incision (113); The cutting device (3) includes: a cutting positioning cylinder (31) fixedly disposed on the fixed base (4), a cutting blade (32) slidably disposed in the cutting positioning cylinder (31), a handle (33) fixedly disposed at one end of the cutting blade (32) away from the cutting positioning cylinder (31), and a return spring (34); In this case, each cutting edge (321) is aligned with the bottom edge of the corresponding air-filled cut (112) and the liquid-filled cut (113); The return spring (34) is sleeved in the outer wall of the cutter (32), and the two ends of the (34) are respectively fixedly connected to the cutter positioning cylinder (31) and the handle (33); The two positioning wires (13) are respectively matched with the positions of the injection chamber and the air filling chamber in the three-lumen tube (2).

2. The three-lumen tube positioning pin hole fixture according to claim 1, characterized in that, The clamping assembly (14) includes: a connector (141) embedded in the wall of the insertion end, a pair of clamping members (142), and a protective pad (143); One end of each of the two clamping members (142) is hinged to both sides of the connector (141). One clamping member (142) has a fixing screw (144) at the other end, and the other clamping member (142) has a through hole at the other end. The fixing screw (144) passes through the through hole and is threadedly locked by a wing nut (145).

3. A three-lumen tube positioning pin hole fixture according to claim 2, characterized in that, The protective pad (143) is made of medical-grade silicone, and the inner surface of the protective pad (143) has anti-slip texture.

4. A three-lumen tube positioning pin hole fixture according to claim 1, characterized in that, The fixed base (4) includes: a base body (41) and two support rods (42); The base body (41) is fixedly disposed at the bottom of the positioning tube (11), the lower ends of the two support rods (42) are fixedly disposed on the upper surface of the base body (41), and the upper ends of the two support rods (42) are respectively fixedly connected to the side wall of the corresponding cutter positioning cylinder (31).

5. A three-lumen tube positioning pin hole fixture according to claim 1, characterized in that, The cutting edge of the cutter (32) is U-shaped.

6. A three-lumen tube positioning pin hole fixture according to claim 1, characterized in that, The outer circumferential surface of the handle (33) is provided with anti-slip knurling.

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