Cryoablation needle holding tube device

Abstract

The utility model relates to the technical field of medical instrument manufacturing, in particular to a cryoablation needle pipe holding device which comprises a pipe contracting mechanism, the pipe contracting mechanism comprises a machine head, a pipe contracting chuck, a seat stand, a driving rod and a fixing table, the machine head, the seat stand and the fixing table are fixedly connected in sequence, and a main body part of the pipe contracting chuck is fixedly installed in the machine head. A pipe shrinkage chuck positioning hole in clearance fit with a heat preservation outer pipe is formed in the center of a main body part of the pipe shrinkage chuck, an elastic pipe shrinkage chuck outer claw capable of being compressed towards the center is arranged on the inner side of the main body of the pipe shrinkage chuck, and the driving rod is installed in the fixing table in a linear moving mode in the center direction of the pipe shrinkage chuck. A driving rod driving device is arranged in the seat stand, a driving rod head is fixedly connected to the end, facing the pipe contracting chuck, of the driving rod, and the end of the driving rod head is arranged to be in a cylinder shape matched with an outer claw of the pipe contracting chuck. According to the cryoablation needle holding device, the quality and efficiency of contraction processing of the end opening of the outer heat preservation pipe are improved, and meanwhile the labor cost and the time cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical device manufacturing, and particularly relates to a freezing ablation needle pipe holding device. Background Art

[0002] In modern medical technology, as an advanced precise treatment solution, the freezing ablation needle has been widely used in the treatment of various diseases due to its significant advantages such as high treatment accuracy, small damage to patients, and fast postoperative recovery. To ensure that the freezing ablation needle can effectively maintain its cold quantity during the treatment process, reduce heat loss, and improve the treatment effect, a heat insulation device is usually arranged inside the freezing ablation needle. This heat insulation device is usually composed of an outer heat insulation pipe and an inner heat insulation pipe, and there is a certain space between the two. This design aims to utilize the vacuum environment to reduce the thermal conductivity, thereby improving the heat insulation effect.

[0003] However, in the process of implementing this heat insulation structure, the diameters at both ends of the outer heat insulation pipe need to be shrunk to a certain extent for vacuum welding to ensure the tightness of the space. This step is crucial for ensuring the heat insulation performance of the freezing ablation needle. However, due to the small size and high precision requirements of the outer heat insulation pipe, the shrinkage processing of its ports becomes a challenging task. Traditional processing methods often rely on manual operation, which is not only inefficient but also difficult to ensure processing accuracy and consistency.

[0004] In view of the above problems, there is an urgent need in the market for a device that can efficiently and accurately perform the shrinkage processing of the ports of the outer heat insulation pipe. Content of the Utility Model

[0005] In order to solve the above problems, the utility model provides a freezing ablation needle pipe holding device, which improves the quality and efficiency of the shrinkage processing of the ports of the outer heat insulation pipe, and saves labor and time costs at the same time.

[0006] The technical solution of the utility model is as follows:

[0007] A freezing ablation needle pipe holding device includes a pipe shrinking mechanism. The pipe shrinking mechanism includes a machine head, a pipe shrinking chuck, a base, a driving rod, and a fixing table. The machine head, the base, and the fixing table are fixedly connected in sequence. The main part of the pipe shrinking chuck is fixedly installed in the machine head. A pipe shrinking chuck positioning hole that is in clearance fit with the outer heat insulation pipe is arranged at the center of the main part of the pipe shrinking chuck. An elastic pipe shrinking chuck outer claw that can be compressed towards the center is arranged on the inner side of the main part of the pipe shrinking chuck. The driving rod is installed in the fixing table so as to linearly move along the central direction of the pipe shrinking chuck. A driving rod driving device is arranged in the base. A driving rod head is fixedly connected to the end of the driving rod facing the pipe shrinking chuck. The end of the driving rod head is arranged in a cylindrical shape that cooperates with the pipe shrinking chuck outer claw.

[0008] A pipe shrinking chuck limiting groove is provided on the outer periphery of the main body part of the pipe shrinking chuck, and a chuck head limiting piece that cooperates with the pipe shrinking chuck limiting groove is provided in the installation hole of the chuck head for installing the pipe shrinking chuck.

[0009] The driving rod driving device includes a servo motor, a gear and a rack. The rack is fixedly connected to the driving rod. The servo motor is fixed on the base, and a gear meshing with the rack is fixedly connected to the output shaft of the servo motor.

[0010] A base chuck groove is provided at the end of the base where it fits with the fixed table, and a matching boss is provided at the position of the fixed table corresponding to the base chuck groove.

[0011] A base hole is provided on the base, and the driving rod passes through the base hole.

[0012] A gear groove for accommodating the gear is provided inside the base.

[0013] A fixed rear seat is fixedly connected to the outer end of the fixed table, and a spring is provided between the outer end of the driving rod and the fixed rear seat.

[0014] A fixed rod for installing the spring is provided on the fixed rear seat, and the spring is sleeved on the fixed rod.

[0015] The cryoablation needle pipe holding device further includes a cloud platform for fixing the heat preservation outer pipe. The cloud platform includes a cloud platform adjusting rod, a cloud platform flat plate, a cloud platform base and a cloud platform pushing rod. A cloud platform chuck groove for fixing the heat preservation outer pipe is provided on the cloud platform flat plate. Bevel gears meshing with each other are respectively connected to the bottoms of the cloud platform adjusting rod and the cloud platform flat plate. There are two convex blocks at the lower end of the cloud platform flat plate, and there are two sliding grooves on the cloud platform base that cooperate with the convex blocks.

[0016] The cryoablation needle pipe holding device further includes a console, and the console is communicatively connected to the servo motor.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. A cryoablation needle pipe holding device disclosed by the present utility model. Through the designed pipe shrinking mechanism and the cooperation of the driving rod and the pipe shrinking chuck, precise shrinking processing of the port of the outer heat preservation pipe is achieved; the elastic outer claws of the pipe shrinking chuck inside the pipe shrinking chuck can compress towards the center and cooperate with the cylindrical end of the driving rod head, ensuring the accuracy and consistency of the shrinking process; this design solves the problems of low efficiency and insufficient processing accuracy caused by relying on manual operation in the traditional method, and improves the quality and efficiency of the shrinking processing of the port of the outer heat preservation pipe.

[0019] 2. A freezing ablation needle tube clamping device disclosed by the present utility model has a compact overall structure and is easy to operate. Through the communication connection between the control console and the servo motor, automatic control is achieved, and there is no need for manual direct operation of the tube shrinking process, thus saving manpower. At the same time, the design of the pan-tilt makes the fixation and adjustment of the thermal insulation outer tube more convenient, further improving the operation convenience.

[0020] 3. A freezing ablation needle tube clamping device disclosed by the present utility model drives the movement of the driving rod through a servo motor driving a gear, realizing the automation of the entire shrinking process. This design not only improves work efficiency but also shortens the processing time, making the entire production process more efficient and rapid.

[0021] 4. A freezing ablation needle tube clamping device disclosed by the present utility model has a flexible design for the tube shrinking chuck, which can be replaced according to different models of thermal insulation outer tubes. This feature enables the device to be widely used in the production of freezing ablation needle thermal insulation devices with different specifications and models, improving the applicability and flexibility of the device.

[0022] 5. A freezing ablation needle tube clamping device disclosed by the present utility model has the cooperative transmission of the servo motor with the gear and the rack, ensuring the accuracy and stability of the movement of the driving rod. This design not only improves the accuracy of the tube clamping process but also guarantees the dimensional consistency and airtightness of the port of the outer thermal insulation tube after shrinking, thereby improving the thermal insulation performance of the freezing ablation needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the detailed description of the preferred embodiments below, the solutions and advantages of the present application will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model.

[0024] In the drawings:

[0025] Figure 1 is a schematic diagram of the overall composition of a freezing ablation needle tube clamping device according to an embodiment of the present utility model;

[0026] Figure 2 is a schematic diagram of the control screen of the control console of a freezing ablation needle tube clamping device according to an embodiment of the present utility model;

[0027] Figure 3 is a schematic diagram of the system setting screen of the control console of a freezing ablation needle tube clamping device according to an embodiment of the present utility model;

[0028] Figure 4 is a top view of the pan-tilt of a freezing ablation needle tube clamping device according to an embodiment of the present utility model;

[0029] Figure 5 Cross-sectional view of the cloud platform of a freezing ablation needle tube holding device according to an embodiment of the present invention;

[0030] Figure 6 Cross-sectional view of the cooperation between the cloud platform of a freezing ablation needle tube holding device and a tube shrinking mechanism according to an embodiment of the present invention;

[0031] Figure 7 Three-dimensional explosion schematic diagram of the tube shrinking mechanism of a freezing ablation needle tube holding device according to an embodiment of the present invention;

[0032] Figure 8 Schematic cross-sectional structure diagram of the tube shrinking mechanism of a freezing ablation needle tube holding device according to an embodiment of the present invention;

[0033] Figure 9 Stereo structure diagram of the base of the tube shrinking mechanism of a freezing ablation needle tube holding device according to an embodiment of the present invention;

[0034] Figure 10 Internal transmission schematic diagram of the tube shrinking mechanism of a freezing ablation needle tube holding device according to an embodiment of the present invention;

[0035] Figure 11 Force schematic diagram of the outer claws of the tube shrinking chuck of the tube shrinking mechanism of a freezing ablation needle tube holding device according to an embodiment of the present invention;

[0036] The components represented by the reference numerals in the figure are:

[0037] The present invention: 1. Tube shrinking mechanism, 11. Machine head, 111. Machine head limit piece, 12. Tube shrinking chuck, 121. Tube shrinking chuck limit groove, 122. Outer claws of the tube shrinking chuck, 123. Tube shrinking chuck positioning hole, 13. Base, 131. Base card slot, 132. Gear groove, 133. Base hole, 14. Servo motor, 15. Gear, 16. Rack, 17. Driving rod, 171. Driving rod head, 18. Fixed platform, 19. Spring, 110. Fixed rear seat, 1101. Fixed rod, 2. Cloud platform, 21. Cloud platform adjusting rod, 22. Cloud platform flat plate, 221. Cloud platform card slot, 222. Protrusion, 23. Cloud platform base, 231. Cloud platform sliding groove, 24. Cloud platform pushing rod, 3. Control console, 4. Thermal insulation outer tube. Detailed implementation manners

[0038] As Figure 1 shown, the freezing ablation needle tube holding device mainly consists of a tube shrinking mechanism 1, a cloud platform 2 and a control console 3.

[0039] As Figure 2As shown, on the main screen page, the model number of the pipe shrinking machine is displayed. For example, for the pipe shrinking machine (13), the target position and the current position are displayed on the lower side. By setting the target position, the current position during the pipe clamping process can be monitored in real time, such as Figure 3 As shown, after entering the system settings, manual operation can be selected, and the target position, the number of uses can be adjusted, and the speed and the indentation time can also be adjusted.

[0040] Such as Figure 7 and Figure 8 As shown, the pipe shrinking mechanism 1 is the core part of the cryoablation needle pipe holding device, and includes components such as a machine head 11, a pipe shrinking chuck 12, a base 13, a servo motor 14, a gear 15, a rack 16, a drive rod 17, a fixed table 18, a spring 19, and a fixed rear seat 110, etc.

[0041] The machine head 11 is used to install the pipe shrinking chuck 12 and is fixedly connected to the base 13 by bolts.

[0042] The pipe shrinking chuck 12 has a pipe shrinking chuck positioning hole 123 and a pipe shrinking chuck outer claw 122. The pipe shrinking chuck positioning hole 123 has a clearance fit with the thermal insulation outer pipe 4, and the pipe shrinking chuck outer claw 122 can be compressed towards the center for clamping and reducing the pipe orifice diameter of the thermal insulation outer pipe 4. The outer periphery of the main body part of the pipe shrinking chuck 12 is also provided with a pipe shrinking chuck limiting groove 121, which cooperates with the machine head limiting piece 111 inside the machine head 11 to limit the axial position of the pipe shrinking chuck 12.

[0043] The base 13 is used to install the servo motor 14 and the gear 15, and is also fixedly connected to the fixed table 18 by bolts. As Figure 9 shown, a gear groove 132 is provided inside the base 13 to provide a movement space for the gear 15, the base hole 133 limits the radial displacement of the drive rod 17, and the base clamping groove 131 cooperates with the boss on the fixed table 18 for positioning.

[0044] The servo motor 14 is fixed on the base 13 and drives the gear 15 to rotate through the output shaft.

[0045] The gear 15 and the rack 16 are meshed. When the gear 15 rotates, it drives the rack 16 to do a linear motion, such as Figure 10 shown.

[0046] One end of the drive rod 17 is fixedly connected to the rack 16 by bolts, and the other end presses against the outside of the pipe shrinking chuck outer claw 122 through the drive rod head 171. The drive rod 17 moves linearly along the central direction of the pipe shrinking chuck 12 inside the fixed table 18.

[0047] The fixed table 18 is fixedly connected to the fixed rear seat 110 by bolts and together supports other components of the pipe shrinking mechanism. A fixed rod 1101 is provided on the fixed rear seat 110 for installing the spring 19 and restricting its radial displacement.

[0048] The spring 19 is sleeved on the fixed rod 1101, with one end supporting the driving rod 17 and the other end being stuck in the hole of the fixed rod 1101. When the driving rod 17 moves backward, the spring 19 provides a certain thrust to prevent it from disengaging from the rack 16.

[0049] like Figures 4 to 6 As shown, the platform 2 is used to fix the heat-insulating outer tube 4 and adjust its position so as to align with the tube shrinking mechanism 1. The platform 2 includes a platform adjustment rod 21, a platform plate 22, a platform base 23 and a platform push rod 24 and other components.

[0050] The pan-tilt adjustment rod 21 and the pan-tilt plate 22 are connected by mutually meshing bevel gears 25 , and the pan-tilt plate 22 can be controlled to move linearly up and down by rotating the pan-tilt adjustment rod 21 .

[0051] The pan-tilt slot 221 is arranged on the pan-tilt plate 22 and is used to fix the heat-insulating outer tube 4 .

[0052] The pan head base 23 is provided with a slide groove 231 which cooperates with the protrusion 222 at the lower end of the pan head plate 22. When the pan head push rod 24 moves forward, the protrusion 222 moves along the slide groove 231, thereby adjusting the front and rear position of the pan head plate 22.

[0053] The console 3 is a control device of the device, and is connected to the servo motor 14. The screen of the console 3 displays the target position and current position during the clamping process, and the clamping process can be monitored in real time by setting the target position. At the same time, the console 3 also provides a system setting function, which can select the manual operation mode and adjust the target position, number of uses, speed and retraction time.

[0054] When in use, one end of the heat-insulating outer tube 4 is fixed in the pan head slot 221 , and the height and front-to-back position of the pan head 2 are adjusted to make the pan head slot 221 coaxial with the shrink tube chuck positioning hole 123 .

[0055] Start the program of the control console 3, pass the heat-insulating outer tube 4 through the positioning hole 123 of the tube-shrinking chuck, and pass the part to be clamped through the outer claw 122 of the tube-shrinking chuck.

[0056] The servo motor 14 is started, driving the gear 15 to rotate. The gear 15 meshes with the rack 16, driving the rack 16 and the driving rod 17 to make linear motion. At this time, the inner side of the driving rod head 171 presses against the outer side of the outer claw 122 of the shrinking chuck, so that the outer claw 122 of the shrinking chuck is compressed toward the center, thereby reducing the diameter of the tube opening at one end of the insulation outer tube 4. At this time, the force received by the outer claw 122 of the shrinking chuck is as follows: Figure 11 As shown, the component force F of F drive causes the dormitory pipe clamp to move inward, thereby reducing the diameter of the pipe opening at one end of the outer insulation pipe 4, thereby achieving the purpose of the dormitory pipe.

[0057] When the set target position is reached, the servo motor 14 stops rotating, and the drive rod 17 moves backward. At this time, the spring 19 provides a certain thrust to prevent the drive rod 17 from disengaging from the rack 16.

[0058] After the pipe shrinking is completed, the program of the console 3 is closed, and the processed thermal insulation outer pipe 4 is removed for the next operation.

[0059] This cryoablation needle pipe holding device improves the quality and efficiency of the shrinkage processing of the outer thermal insulation pipe port, and at the same time saves labor and time costs.

Claims

1. A cryoablation needle holding tube device, characterized in that, It includes a pipe shrinking mechanism (1), and the pipe shrinking mechanism (1) includes a machine head (11), a pipe shrinking chuck (12), a base table (13), a driving rod (17) and a fixed table (18). The machine head (11), the base table (13) and the fixed table (18) are fixedly connected in sequence. The main body part of the pipe shrinking chuck (12) is fixedly installed in the machine head (11). A pipe shrinking chuck positioning hole (123) that has a clearance fit with the thermal insulation outer pipe (4) is provided at the center of the main body part of the pipe shrinking chuck (12). Elastic pipe shrinking chuck outer claws (122) that can be compressed towards the center are provided on the inner side of the main body of the pipe shrinking chuck (12). The driving rod (17) is installed in the fixed table (18) so as to linearly move along the central direction of the pipe shrinking chuck (12). A driving rod driving device is provided in the base table (13). A driving rod head (171) is fixedly connected to one end of the driving rod (17) facing the pipe shrinking chuck (12). The end of the driving rod head (171) is set to be a cylindrical shape that cooperates with the pipe shrinking chuck outer claws (122).

2. The cryoablation needle holding tube device according to claim 1, wherein, A pipe shrinking chuck limiting groove (121) is provided on the outer periphery of the main body part of the pipe shrinking chuck (12). A machine head limiting piece (111) that cooperates with the pipe shrinking chuck limiting groove (121) is provided in the installation hole of the machine head (11) for installing the pipe shrinking chuck (12).

3. The cryoablation needle holding tube device according to claim 1, wherein, The driving rod driving device includes a servo motor (14), a gear (15) and a rack (16). The rack (16) is fixedly connected to the driving rod (17). The servo motor (14) is fixed on the base table (13). A gear (15) that meshes with the rack (16) is fixedly connected to the output shaft of the servo motor (14).

4. The cryoablation needle holding tube device according to claim 1, characterized in that, A base table clamping groove (131) is provided at the end of the base table (13) that fits with the fixed table (18). A matching convex platform is provided at the position of the fixed table (18) corresponding to the base table clamping groove (131).

5. The cryoablation needle holding tube device according to claim 4, characterized in that, A base table hole (133) is provided on the base table (13). The driving rod (17) passes through the base table hole (133).

6. The cryoablation needle holding tube device according to claim 4 or 5, characterized in that, A gear groove (132) for accommodating the gear (15) is provided in the base table (13).

7. A cryoablation needle holding tube device according to claim 1, wherein, A fixed rear seat (110) is fixedly connected to the outer end of the fixed table (18). A spring (19) is provided between the outer end of the driving rod (17) and the fixed rear seat (110).

8. The cryoablation needle holding tube device according to claim 7, characterized in that, A fixing rod (1101) for installing the spring (19) is provided on the fixed rear seat (110). The spring (19) is sleeved on the fixing rod (1101).

9. A cryoablation needle holding tube device according to claim 1, wherein, It also includes a cloud platform (2) for fixing the thermal insulation outer pipe (4). The cloud platform (2) includes a cloud platform adjusting rod (21), a cloud platform flat plate (22), a cloud platform base (23) and a cloud platform pushing rod (24). A cloud platform clamping groove (221) for fixing the thermal insulation outer pipe (4) is provided on the cloud platform flat plate (22). Bevel gears (25) that mesh with each other are respectively connected to the bottoms of the cloud platform adjusting rod (21) and the cloud platform flat plate (22). There are two convex blocks (222) at the lower end of the cloud platform flat plate (22). There are two sliding grooves (231) on the cloud platform base (23) that cooperate with the convex blocks (222).

10. The cryoablation needle holding tube device according to claim 1, characterized in that, It also includes a control console (3), and the control console (3) is communicatively connected to the servo motor (14).

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