Bending device for medical drag hook production

By using a cylinder to push an arc-shaped structural block in the bending device for medical hook production, the heated hook is bent and cooled and quenched by spraying cooling water from a nozzle. This solves the problem of insufficient cooling in existing devices and improves the mechanical properties and service life of medical hooks.

CN224168439UActive Publication Date: 2026-04-28XIAMEN RUN DING MINIMALLY INVASIVE SEIKO TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN RUN DING MINIMALLY INVASIVE SEIKO TECH CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing hot bending equipment for medical hook production lacks a cooling structure, making it impossible to directly cool and quench the heated hook after bending.

Method used

A bending device was designed, which includes a cylinder pushing an arc-shaped structural block. The bottom end of the pull rod is heated by a small high-frequency heater. The cylinder pushes the arc-shaped structural block to bend it into a hook shape. Cooling water is sprayed out through a nozzle to cool and quench the formed hook.

Benefits of technology

This technology enables efficient cooling and quenching of medical hooks, ensuring that the bent hook has good mechanical properties and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medical drag hook production, in particular to a bending device for medical drag hook production, which comprises a structural seat, a rod inserting groove is arranged at the top of the structural seat, an arc-shaped groove is arranged on one side of the rod inserting groove, a water tank is arranged inside the structural seat at the bottom of the rod inserting groove, and a cooling component is arranged inside the water tank. The cooling assembly comprises a circular plate fixed in the water tank through bolts, the bottom end of the circular plate is connected with a water inlet pipe through a pipeline, and the top end, located at the top of the circular plate, of the water inlet pipe is connected with a spray head through a threaded groove; a layer plate is fixed to one side of the structural base through bolts, and a small high-frequency heater is arranged at the top of the layer plate. The bottom end of the medical pull rod is heated through the small high-frequency heater, then the air cylinder pushes the arc-shaped structural block to move, the bottom end of the medical pull rod is extruded into a hook shape through the arc-shaped groove, and finally cooling water flows into the water inlet pipe and is sprayed out through the spray head to cool and quench the bottom end of the medical pull rod.
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Description

Technical Field

[0001] This utility model relates to the field of medical hook manufacturing technology, specifically to a bending device for medical hook manufacturing. Background Technology

[0002] Medical retractors are surgical instruments primarily used to retract tissues, expose the surgical area, and facilitate exploration and manipulation. They come in various shapes and sizes, including thyroid retractors, abdominal retractors, skin retractors, etc., and the appropriate retractor can be selected according to the surgical needs.

[0003] Most medical hooks are made of stainless steel. During the production process, a bending device is used to bend the hook. Existing metal bending processes include cold bending and hot bending. Cold bending involves cold forging using hydraulic equipment, while hot bending involves heating the hook with heating equipment and then pressing it with a mold. However, existing hot bending devices for medical hook production lack a cooling structure, so the heated hook cannot be directly cooled with cooling water after bending to achieve the purpose of quenching. Therefore, a bending device for medical hook production is proposed. A cylinder pushes an arc-shaped structural block to press the heated end of the hook, bending it into a curved shape. The solenoid valve is opened to allow cooling water to spray out through the nozzle, directly cooling and quenching the formed hook. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a bending device for the production of medical hooks. A cylinder pushes an arc-shaped structural block to squeeze the heated end of the hook, causing it to bend and form a curved shape. The solenoid valve is opened to allow cooling water to spray out through the nozzle, directly cooling and quenching the formed hook.

[0005] The technical solution adopted by this utility model to solve its technical problem is a bending device for medical hook production, including a structural base, a rod insertion groove is opened on the top of the structural base, an arc-shaped groove is opened on one side of the rod insertion groove, a water tank is opened inside the structural base at the bottom of the rod insertion groove, a cooling component is arranged inside the water tank, the cooling component includes a circular plate fixed to the inside of the water tank by bolts, a water inlet pipe is connected to the bottom end of the circular plate through a pipe, and a nozzle is connected to the top of the circular plate at the top end through a threaded groove;

[0006] A shelf is fixed to one side of the structural base by bolts. A small high-frequency heater is provided on the top of the shelf. A cylinder is installed on the side of the structural base located at the bottom of the shelf by a mounting bracket. The output shaft of the cylinder located inside the structural base is fixed to an arc-shaped structural block by bolts.

[0007] By adopting the above technical solution, a small high-frequency heater heats the bottom end of the medical pull rod, a cylinder pushes the arc-shaped structural block to move, and the bottom end of the medical pull rod is processed into a hook shape through the arc groove. Cooling water flows into the water inlet pipe and is sprayed out through the nozzle to cool and quench the medical pull hook.

[0008] Specifically, a ceramic heat insulation sleeve is fixed to the top of the insert groove via a flange. An arc-shaped limiting groove is provided inside the ceramic heat insulation sleeve, and the heating coil of the small high-frequency heater is engaged inside the ceramic heat insulation sleeve through the arc-shaped limiting groove.

[0009] Specifically, the water inlet pipe is connected to a solenoid valve at one end outside the structural base via a threaded groove, and the circular plate is provided with reserved slots at equal intervals at the top outside the nozzle.

[0010] Specifically, the insertion slot and the water tank are connected.

[0011] Specifically, one side of the structural base is hinged to an inspection door, and one end of the structural base is connected to a drain valve via a pipe.

[0012] Specifically, the bottom ends of the layer are connected to support columns via threaded grooves.

[0013] The beneficial effects of this utility model are:

[0014] (1) The bending device for producing medical hooks described in this utility model bends the bottom end of the medical hook to form a medical hook, and then opens the solenoid valve to allow cooling water to flow into the water inlet pipe. The cooling water that enters the water inlet pipe is sprayed out through the nozzle to cool and quench the formed medical hook.

[0015] (2) The bending device for producing medical hooks described in this utility model, when the medical hook is inserted into the insertion groove from the ceramic heat insulation sleeve, the bottom end of the medical hook is heated by a small high-frequency heater through its heating coil. After heating, the bottom end of the medical hook enters the insertion groove. The cylinder is opened to push the arc-shaped structure block to move. The arc-shaped structure block pushes the bottom end of the medical hook into the arc-shaped groove and squeezes it. The bottom end of the medical hook is formed into a hook shape by the limiting of the arc-shaped groove. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the structural base of this utility model;

[0019] Figure 3 This is a schematic diagram of the cooling component structure of this utility model;

[0020] In the diagram: 1. Structural base; 2. Shelf; 3. Small high-frequency heater; 4. Cylinder; 5. Ceramic heat insulation sleeve; 6. Arc-shaped structural block; 7. Arc-shaped groove; 8. Water tank; 9. Cooling assembly; 901. Circular plate; 902. Water inlet pipe; 903. Solenoid valve; 904. Nozzle; 905. Reserved groove; 10. Drain valve; 11. Arc-shaped limiting groove; 12. Support column; 13. Inspection door; 14. Insertion rod groove. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] A cylinder pushes an arc-shaped structural block to press the heated end of the tie rod, bending it into a curved shape. An open solenoid valve allows cooling water to spray through nozzles, directly cooling and quenching the formed hook. Figure 1-3 As shown, the present invention discloses a bending device for medical hook production, comprising a structural base 1, a rod insertion groove 14 on the top of the structural base 1, an arc-shaped groove 7 on one side of the rod insertion groove 14, a water tank 8 inside the bottom of the rod insertion groove 14 of the structural base 1, a cooling assembly 9 inside the water tank 8, the cooling assembly 9 comprising a circular plate 901 fixed to the inside of the water tank 8 by bolts, a water inlet pipe 902 connected to the bottom end of the circular plate 901 by a pipe, and a nozzle 904 connected to the top end of the water inlet pipe 902 at the top of the circular plate 901 by a threaded groove;

[0023] A shelf 2 is fixed to one side of the structural base 1 by bolts. A small high-frequency heater 3 is provided on the top of the shelf 2. A cylinder 4 is installed on the side of the structural base 1 located at the bottom of the shelf 2 by a mounting bracket. The output shaft of the cylinder 4 located inside the structural base 1 is fixed to an arc-shaped structural block 6 by bolts.

[0024] In use, the small high-frequency heater 3 heats the bottom end of the medical pull rod, the cylinder 4 pushes the arc-shaped structural block 6 to move, and the bottom end of the medical pull rod is processed into a hook shape through the arc-shaped groove 7. Cooling water flows into the water inlet pipe 902 and is sprayed out through the nozzle 904 to cool and quench the medical pull rod.

[0025] For example, such as Figure 1 , Figure 2 As shown, the present invention also includes a ceramic heat insulation sleeve 5 fixed to the top of the top of the insertion groove 14 of the structural base 1 by a flange. An arc-shaped limiting groove 11 is provided inside the ceramic heat insulation sleeve 5, and the heating coil of the small high-frequency heater 3 is engaged inside the ceramic heat insulation sleeve 5 through the arc-shaped limiting groove 11.

[0026] When in use, the heating coil of the small high-frequency heater 3 is located inside the ceramic heat insulation sleeve 5, which can heat the bottom end of the medical hook when it is inserted into the insertion groove 14 from the ceramic heat insulation sleeve 5. The ceramic heat insulation sleeve 5 plays a role in heat insulation.

[0027] For example, such as Figure 2 , Figure 3 As shown, the present invention also includes a solenoid valve 903 connected to one end of the water inlet pipe 902 located outside the structural base 1 via a threaded groove, and a reserved groove 905 equidistantly opened on the top of the circular plate 901 located outside the nozzle 904.

[0028] When in use, the solenoid valve 903 is opened to allow external cooling water to flow into the circular plate 901. The reserved groove 905 ensures that the circular plate 901 will not obstruct the flow of cooling water.

[0029] For example, such as Figure 2 As shown, the present invention also includes a connection between the insertion groove 14 and the water tank 8.

[0030] When in use, the insertion slot 14 and the water tank 8 are connected, so that cooling water can be sprayed into the insertion slot 14 and the used cooling water can fall into the water tank 8.

[0031] For example, such as Figure 1 As shown, the present invention also includes an inspection door 13 hinged to one side of the structural base 1, and a drain valve 10 connected to one end of the structural base 1 via a pipe.

[0032] When in use, the internal parts of the structural base 1 can be cleaned or replaced by opening the inspection door 13, and the drain valve 10 can be opened to drain the used cooling water in the water tank 8.

[0033] For example, such as Figure 1 As shown, the present invention also includes support columns 12 connected to the bottom ends of the layer plate 2 via threaded grooves.

[0034] In use, the support column 12 is used to support the shelf 2.

[0035] When using this utility model, the user connects the device to an external power source using a power cord and connects the solenoid valve 903 to an external water supply device using a water pipe.

[0036] External robotic arms and other tools drive the medical pull rod to be inserted into the insertion groove 14 from the ceramic heat insulation sleeve 5. When the bottom end of the medical pull rod enters the ceramic heat insulation sleeve 5, the bottom end of the medical pull rod is heated by the heating coil of the small high-frequency heater 3.

[0037] Driven by the external robotic arm, the heated bottom end of the medical pull rod enters the insertion groove 14. The cylinder 4 is opened to push the arc-shaped structural block 6 to move. The arc-shaped structural block 6 pushes the bottom end of the medical pull rod into the arc-shaped groove 7 and squeezes it. The limiting effect of the arc-shaped groove 7 causes the bottom end of the medical pull rod to form a hook shape.

[0038] After the bottom end of the medical pull rod is bent, the solenoid valve 903 is opened to allow cooling water to flow into the water inlet pipe 902. The cooling water entering the water inlet pipe 902 is sprayed out through the nozzle 904 to cool and quench the formed medical hook. After cooling and quenching, the external robot arm drives the medical hook to move out of the insertion slot 14. The used cooling water falls into the water tank 8 for collection and is then discharged through the drain valve 10.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bending device for producing medical retractors, characterized in that, The structure includes a structural base (1), the top of which has a rod insertion groove (14), and one side of which has an arc groove (7). The structural base (1) has a water tank (8) located inside the bottom of the rod insertion groove (14). A cooling assembly (9) is provided inside the water tank (8). The cooling assembly (9) includes a circular plate (901) fixed inside the water tank (8) by bolts. The bottom of the circular plate (901) is connected to a water inlet pipe (902) through a pipe. The top of the water inlet pipe (902) is connected to a nozzle (904) through a threaded groove. A shelf (2) is fixed to one side of the structural base (1) by bolts. A small high-frequency heater (3) is provided on the top of the shelf (2). A cylinder (4) is installed on the side of the structural base (1) located at the bottom of the shelf (2) by a mounting bracket. The output shaft of the cylinder (4) located inside the structural base (1) is fixed to an arc-shaped structural block (6) by bolts.

2. The bending device for producing medical hooks according to claim 1, characterized in that, The structural base (1) is located at the top of the insertion groove (14) and is fixed with a ceramic heat insulation sleeve (5) by a flange. The ceramic heat insulation sleeve (5) has an arc-shaped limiting groove (11) inside. The heating coil of the small high-frequency heater (3) is engaged inside the ceramic heat insulation sleeve (5) through the arc-shaped limiting groove (11).

3. The bending device for producing medical retractors according to claim 1, characterized in that, The water inlet pipe (902) is connected to a solenoid valve (903) at one end outside the structural base (1) via a threaded groove. The circular plate (901) is provided with a reserved groove (905) at equal intervals on the top outside the nozzle (904).

4. The bending device for producing medical hooks according to claim 1, characterized in that, The insertion slot (14) and the water tank (8) are connected.

5. A bending device for producing medical hooks according to claim 1, characterized in that, One side of the structural base (1) is hinged to an inspection door (13), and one end of the structural base (1) is connected to a drain valve (10) via a pipe.

6. The bending device for producing medical hooks according to claim 1, characterized in that, The bottom ends of the layer (2) are connected to support columns (12) via threaded grooves.