Guide pipe side hole punching machine

Abstract

The utility model relates to the field of medical instrument production equipment, in particular to a catheter side hole punching machine which comprises a positioning assembly and a punching assembly, the positioning assembly comprises a positioning fixing seat, a positioning driving element and a positioning needle, and the positioning driving element drives the positioning needle to move on the positioning fixing seat in a limiting mode. The punching assembly comprises a punching driving element, a punching needle and a lifting seat, the punching needle and the lifting seat are arranged up and down, the punching driving element drives the punching needle to be close to or away from the lifting seat, the positioning needle, the punching needle and the lifting seat are located on the same longitudinal plane, and a positioning hole is formed in the end, close to the punching needle, of the positioning needle. The positioning needle is inserted into the catheter, when the punching needle punches the side face of the catheter, the situation that the two layers of the catheter are punched due to the fact that the catheter is pressed into the two layers can be avoided, the lifting base can position the tail end of the catheter, accurate insertion of the positioning needle is facilitated, the success rate of punching side holes in the catheter is increased, and the yield of products is increased.

Description

Technical Field

[0001] The utility model relates to the field of medical device production equipment, in particular to medical catheter processing equipment. Background Art

[0002] In the prior art, regarding the production process technology for drilling side holes in medical catheters, as in the Chinese utility model with the authorization announcement number CN201823164U, the method of drilling holes in the catheter is to use a perforating needle to pierce holes on the surface of the catheter. However, since the material of the catheter is a flexible material, when the needle pierces the catheter downward, if the force is too small, no hole can be pierced; if the force is too large, the catheter will be directly pressed into two layers and it is easy to pierce through the upper and lower layers of the catheter, directly affecting the product quality and the qualified rate of the product.

[0003] The technical problem to be solved by this application is: how to improve the success rate of drilling side holes in the catheter. Content of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a side hole drilling machine for catheters.

[0005] The technical solution adopted by the utility model is: a side hole drilling machine for catheters, including a positioning assembly and a drilling assembly. The positioning assembly includes a positioning fixed seat, a positioning driving element, and a positioning needle. The positioning driving element drives the positioning needle to move in a limited way on the positioning fixed seat. The drilling assembly includes a drilling driving element, a drilling needle, and a lifting seat. The drilling needle and the lifting seat are arranged up and down. The drilling driving element drives the drilling needle to approach or move away from the lifting seat. The positioning needle, the drilling needle, and the lifting seat are in the same longitudinal plane. A positioning hole is provided at one end of the positioning needle close to the drilling needle.

[0006] In some embodiments, the aperture of the positioning hole is not less than the diameter of the positioning needle.

[0007] In some embodiments, the drilling assembly includes a lifting driving element, and the lifting driving element drives the lifting seat to move up and down.

[0008] In some embodiments, it includes a clamping assembly. The positioning assembly, the drilling assembly, and the clamping assembly are arranged in a straight line. The clamping assembly includes a clamping upper seat, an upper seat driving element, a clamping lower seat, and a lower seat driving element. The upper seat driving source drives the clamping upper seat to move up and down. The lower seat driving element drives the clamping lower seat to move up and down. The clamping upper seat and the clamping lower seat cooperate to complete the clamping of the catheter.

[0009] In some embodiments, a clamping upper half hole is provided on one side of the clamping upper seat close to the clamping lower seat, and a clamping lower half hole is provided on one side of the clamping lower seat close to the clamping upper seat. When the clamping upper seat and the clamping lower seat clamp the catheter, the clamping upper half hole and the clamping lower half hole are respectively on the same axis as the positioning needle.

[0010] In some embodiments, the number of positioning holes and punching needles is correspondingly set, and multiple positioning holes or punching needles are distributed along the axial direction of the positioning needle.

[0011] The beneficial effects of the present utility model are as follows:

[0012] By inserting a positioning needle into the catheter, when the punching needle punches the side of the catheter, it can avoid pressing the catheter into two layers and piercing through the two layers of the catheter. The lifting seat can position the position of the end of the catheter, facilitating the accurate insertion of the positioning needle. The present utility model can improve the success rate of punching side holes in the catheter and the yield rate of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is Figure 1 an enlarged schematic diagram of the structure of label A;

[0015] Figure 3 is a schematic diagram of the structure of the positioning needle;

[0016] The labels in the figure correspond to the names as follows: 1, machine base; 2, positioning assembly; 3, punching assembly; 4, clamping assembly; 21, positioning fixed seat; 22, positioning sliding seat; 23, positioning driving element; 24, positioning needle; 25, positioning hole; 31, punching driving element; 32, punching needle; 33, lifting seat; 34, lifting driving element; 41, clamping upper seat; 42, upper seat driving element; 43, clamping lower seat; 44, lower seat driving element. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figure 1 , the present utility model provides a technical solution: a catheter side hole punching machine, including a machine base 1, a positioning assembly 2, a punching assembly 3, and a clamping assembly 4. The positioning assembly 2, the punching assembly 3, and the clamping assembly 4 are arranged in a straight line on the machine base 1. The punching assembly 3 is arranged between the positioning assembly 2 and the clamping assembly 4.

[0019] Please refer to Figures 1-3, the positioning component 2 includes a positioning fixed seat 21, a positioning sliding seat 22, a positioning driving element 23 and a positioning needle 24. The positioning fixed seat 21 is fixedly connected to the machine base 1. The positioning fixed seat 21 is fixedly provided with a positioning slider, and the positioning sliding seat 22 is fixedly provided with a positioning slide rail that matches the shape of the positioning slider. The positioning sliding seat 22 is limited to slide on the positioning fixed seat 21 through the positioning slider and the positioning slide rail. The positioning driving element 23 is a pneumatic cylinder or an electric cylinder with a linear motion at the output end. The fixed end of the positioning driving element 23 is fixedly connected to the positioning fixed seat 21, and the output end is fixedly connected to the positioning sliding seat 22. The positioning needle 24 is fixedly arranged on the positioning sliding seat 22. Therefore, the positioning driving element 23 drives the positioning needle 24 to move through the positioning sliding seat 22. In order to further accurately measure the moving stroke of the positioning sliding seat 22, the positioning fixed seat 21 is provided with a displacement sensor.

[0020] Please refer to Figure 1 and Figure 2 , the punching component 3 includes a punching driving element 31, a punching needle 32, a lifting seat 33 and a lifting driving element 34. Both the punching driving element 31 and the lifting driving element 34 are pneumatic cylinders or electric cylinders with linear motion at the output end. The fixed end of the punching driving element 31 is fixedly connected to the machine base 1, and the output end is fixedly connected to the punching needle 32. The number of punching needles 32 is set according to actual needs. If the number of punching needles 32 is more than 1, the punching needles 32 are distributed along the axial direction of the positioning needle 24. The lifting seat 33 is arranged directly below the punching needle 32. The fixed end of the lifting driving element 34 is fixedly connected to the machine base 1, and the output end is fixedly connected to the lifting seat 33. The punching needle 32 is arranged above the positioning needle 24, and the lifting seat 33 is arranged below the positioning needle 24. The punching needle 32, the positioning needle 24 and the lifting seat 33 are in the same vertical plane. When the punching needle 32 performs punching, the punching needle 32, the positioning needle 24 and the lifting seat 33 are on the same straight line. One end of the positioning needle 24 close to the punching component 3 is provided with a positioning hole 25. The number of positioning holes 25 corresponds to the number of punching needles 32. If there are more than 1 positioning holes 25, the positioning holes 25 are distributed along the axial direction of the positioning needle 24, and the diameter of the positioning hole 25 is not less than the diameter of the positioning needle 24. Since the material of the catheter is soft, if the head end of the catheter has no other object for support or positioning, the head end of the catheter will drop down. The purpose of the lifting seat 33 is on the one hand to lift the head end of the catheter to ensure that the positioning needle 24 can enter the catheter, and on the other hand to support the positioning needle 24 and the catheter when the punching needle 32 punches the catheter, reducing the force on the positioning needle 24.

[0021] Please refer to Figure 1, the clamping assembly 4 includes a clamping upper seat 41, an upper seat driving element 42, a clamping lower seat 43 and a lower seat driving element 44. Both the upper seat driving element 42 and the lower seat driving element 44 are pneumatic cylinders or electric cylinders with linear motion at the output end. The fixed end of the upper seat driving element 42 is fixedly connected to the machine base 1, and the output end is fixedly connected to the clamping upper seat 41. The fixed end of the lower seat driving element 44 is fixedly connected to the machine base 1, and the output end is fixedly connected to the clamping lower seat 43. The clamping upper seat 41 and the clamping lower seat 43 are arranged vertically. On the side of the clamping upper seat 41 close to the clamping lower seat 43, there is a clamping upper half hole, and on the side of the clamping lower seat 43 close to the clamping upper seat 41, there is a clamping lower half hole. The clamping upper seat 41 and the clamping lower seat 43 clamp the catheter through the clamping upper half hole and the clamping lower half hole. When the clamping upper seat 41 and the clamping lower seat 43 clamp the catheter, the clamping upper half hole and the clamping lower half hole are respectively on the same axis as the positioning pin 24.

[0022] The working principle and usage process of the present utility model: When the catheter is transferred to this device, the clamping assembly 4 clamps the catheter. At this time, the positioning pin 24 is in the preset position. The lifting seat 33 rises, jacks up the end of the catheter, so that the end of the catheter is on the same axis as the positioning pin 24. The positioning pin 24 extends from the preset position and inserts into the catheter. The punching needle 32 moves downward, and the punching needle 32 passes through the outer wall of the catheter and enters the positioning hole 25. After the punching operation is completed, the punching needle 32 retracts, the positioning pin 24 retracts, the lifting seat 33 retracts, the clamping upper seat 41 and the clamping lower seat 43 retract, and the catheter is transferred to the next process.

[0023] Finally, it should be noted that the above are only preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Side hole drilling machine for catheter, characterized in that, The invention comprises a positioning assembly (2) and a punching assembly (3), wherein the positioning assembly (2) comprises a positioning fixing seat (21), a positioning driving element (23) and a positioning needle (24), wherein the positioning driving element (23) drives the positioning needle (24) to move to the upper limit position on the positioning fixing seat (21), and the punching assembly (3) comprises a punching driving element (31), a punching needle (32) and a lifting seat (33), wherein the punching needle (32) and the lifting seat (33) are arranged up and down, and the punching driving element (31) drives the punching needle (32) to approach or move away from the lifting seat (33), wherein the positioning needle (24), the punching needle (32) and the lifting seat (33) are located on the same longitudinal plane, and a positioning hole (25) is provided at one end of the positioning needle (24) close to the punching needle (32).

2. The catheter side hole punching machine according to claim 1, characterized in that, The diameter of the positioning hole (25) is not less than the diameter of the positioning needle (24).

3. The catheter side hole punching machine according to claim 1, characterized in that, The punching assembly (3) comprises a lifting drive element (34), and the lifting drive element (34) drives the lifting seat (33) to rise and fall.

4. The catheter side hole drilling machine according to claim 1, wherein, The invention comprises a clamping assembly (4), wherein the positioning assembly (2), the punching assembly (3) and the clamping assembly (4) are arranged along a straight line, and the clamping assembly (4) comprises a clamping upper seat (41), an upper seat driving element (42), a clamping lower seat (43) and a lower seat driving element (44). The upper seat driving source drives the clamping upper seat (41) to rise and fall, and the lower seat driving element (44) drives the clamping lower seat (43) to rise and fall. The clamping upper seat (41) and the clamping lower seat (43) cooperate to complete the clamping of the catheter.

5. The catheter side hole punching machine according to claim 4, characterized in that, The clamping upper seat (41) is provided with a clamping upper half hole on one side close to the clamping lower seat (43), and the clamping lower seat (43) is provided with a clamping lower half hole on one side close to the clamping upper seat (41). When the clamping upper seat (41) and the clamping lower seat (43) clamp the catheter, the clamping upper half hole and the clamping lower half hole are respectively on the same axis as the positioning needle (24).

6. The side hole drilling machine for a catheter according to claim 1, characterized in that The number of the positioning holes (25) and the punching needles (32) is set correspondingly, and the plurality of positioning holes (25) or punching needles (32) are distributed axially along the positioning needle (24).

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