Drainage tube drag hook convenient to assemble
The improved drainage tube hook structure solves the problems of hook slippage and inconvenient adjustment, achieving hook stability and rapid adaptation, thus improving the safety and efficiency of the surgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-04-03
AI Technical Summary
Existing drainage tube retractors, which are easy to assemble, are prone to slipping out of their slots during surgical procedures and are difficult to adjust quickly according to the actual condition of the drainage tube, thus affecting surgical efficiency.
A drainage tube hook with a structure including a mounting plate, hook, movable rod, locking block, spring and bevel gear was designed. By fixing the locking block and the slot and adjusting the bevel gear, the hook can be stabilized and the drainage tube can be quickly clamped, simplifying the operation process.
It improves the safety and efficiency of the surgical procedure, prevents the hook from slipping out and falling, can quickly adapt to drainage tubes of different sizes, and shortens the preparation time for surgical instruments.
Smart Images

Figure CN224070936U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a drainage tube hook that is easy to assemble. Background Technology
[0002] Hepatobiliary surgery involves vital organs such as the liver, gallbladder, and bile ducts. Postoperatively, drainage tubes are often placed to drain bile and exudate, prevent complications such as infection and bile fistula caused by fluid accumulation, and promote wound healing. A drainage tube retractor that is easy to assemble has important application value in hepatobiliary surgery. It can meet the department's needs for precise, rapid, and flexible drainage tube operation, and provide strong support for patients' surgical treatment and postoperative recovery.
[0003] However, existing easy-to-assemble drainage tube hooks have the following disadvantages:
[0004] (1) During the surgical procedure, when the retractor is in working condition, the hook may slip out of the slot and fall off due to shaking, vibration or accidental collision during the operation.
[0005] (2) During the operation, medical staff need to spend extra time to find or replace different sizes of retractors, making it difficult to quickly adjust and put into use according to the actual situation of the drainage tube, which greatly reduces the efficiency of the operation.
[0006] Therefore, this utility model provides a drainage tube hook that is easy to assemble. Utility Model Content
[0007] (a) Technical problems to be solved
[0008] The technical problem solved by the utility model is to provide a drainage tube hook that is highly practical, easy to assemble, and simple in structure through simple operation. This solves the problems mentioned in the background art, such as the hook possibly slipping out of the slot and falling off, and the difficulty in quickly adjusting it according to the actual situation of the drainage tube.
[0009] (II) Technical Solution
[0010] To achieve the above objectives, this utility model provides the following technical solution: a drainage tube hook that is easy to assemble, comprising a mounting plate, a trapezoidal groove on the bottom surface of the mounting plate, a slot on the inner wall of the trapezoidal groove, a hook slidably connected to the inner wall of the trapezoidal groove, a first cavity inside the hook, a movable rod slidably connected to the inner wall of the first cavity, a pressure rod fixedly connected to the surface of the movable rod, one end of the pressure rod extending to the outside of the first cavity, a spring connecting the two movable rods, a locking block fixedly connected to one end of the movable rod, the locking block engaging inside the slot, a rectangular groove on the surface of the hook, a slider slidably connected to the inner wall of the rectangular groove, a second cavity inside the hook, a round rod movably penetrating the inner wall of the second cavity, a first bevel gear fixedly connected to one end of the round rod, a second bevel gear meshing with the surface of the first bevel gear, a threaded rod fixedly connected to the center of the second bevel gear, the surface of the threaded rod threadedly connected to the inside of the slider, and a pressure plate fixedly connected to the surface of the slider.
[0011] Optionally, the other end of the round rod extends to the outside of the hook, and a knob is fixedly connected to the other end of the round rod for easy rotation by medical staff.
[0012] Optionally, a cover plate is installed on one side of the mounting plate, and a handle is fixedly connected to the surface of the cover plate to facilitate medical staff to open the cover plate.
[0013] Optionally, a limiting groove is formed on the inner sidewall of the first cavity, and a limiting block is fixedly connected to one end of the movable rod. The limiting block is slidably connected inside the limiting groove, which facilitates the movement of the movable rod in a specific position.
[0014] Optionally, a Velcro female side is installed on one side of the mounting plate, and a strap is installed on the other side of the mounting plate. One end of the strap is provided with a Velcro female side, which facilitates medical staff to quickly fix the device.
[0015] Optionally, the inner bottom wall of the rectangular groove is provided with a rotating groove, and the threaded rod rotates inside the rotating groove to make the rotation more stable.
[0016] (III) Beneficial Effects
[0017] This utility model provides a drainage tube hook that is easy to assemble, and has the following beneficial effects:
[0018] 1. This easy-to-assemble drainage tube hook, through the setting of a pressure rod, a movable rod, a locking block, a spring, and a hook, allows for easy installation. First, open the cover plate and press the pressure rod to move the movable rod, while simultaneously squeezing the spring. Under the combined action of the pressure rod and the movable rod, the locking block moves. Once the locking block is inside the hook, it can be placed into the trapezoidal groove for further movement. After moving to the appropriate position, release the pressure rod. Under the action of the spring, the locking block engages inside the groove, thus fixing the hook inside the trapezoidal groove. This prevents the hook from slipping out of the groove due to shaking, vibration, or accidental collision during operation, greatly improving the safety of the surgical procedure.
[0019] 2. This easily assembled drainage tube hook, through the arrangement of a round rod, a first bevel gear, a second bevel gear, a threaded rod, a slider, and a pressure plate, clamps the drainage tube. First, turning the knob drives the round rod to rotate. Under the combined action of the first and second bevel gears, the threaded rod rotates, simultaneously moving the threaded slider. Under the combined action of the threaded rod and the slider, the pressure plate moves, thus opening the pressure plate. Then, the drainage tube is inserted, and turning the knob reverse clamps the drainage tube. This device can clamp drainage tubes of different sizes and can be quickly adjusted and put into use according to the actual situation of the drainage tube, shortening the preparation time of surgical instruments and making the entire surgical procedure smoother and more efficient. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the strap structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the hook structure of this utility model;
[0023] Figure 4 This is a schematic diagram of the threaded rod structure of this utility model.
[0024] In the diagram: 1. Mounting plate; 2. Cover plate; 3. Pressure rod; 4. Movable rod; 5. Locking block; 6. Spring; 7. Hook; 8. Round rod; 9. First bevel gear; 10. Second bevel gear; 11. Threaded rod; 12. Slider; 13. Pressure plate; 14. Knob; 15. Handle; 16. Strap. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0026] Please see Figures 1 to 4 This utility model provides a technical solution: a drainage tube hook that is easy to assemble, including a mounting plate 1. The bottom surface of the mounting plate 1 has a trapezoidal groove, and the inner side wall of the trapezoidal groove has a slot. A hook 7 is slidably connected to the inner side wall of the trapezoidal groove. A first cavity is formed inside the hook 7. A movable rod 4 is slidably connected to the inner side wall of the first cavity. A pressure rod 3 is fixedly connected to the surface of the movable rod 4. One end of the pressure rod 3 extends to the outside of the first cavity. A spring 6 is connected between the two movable rods 4. A locking block 5 is fixedly connected to one end of the movable rod 4. The locking block 5 is engaged inside the slot. Through the pressure rod 3, the movable rod 4, and the locking block... 5. The setting of spring 6 and hook 7: When installing the hook, first open cover 2 and press the pressure rod 3 to move the movable rod 4. At the same time, squeeze spring 6. Under the combined action of pressure rod 3 and movable rod 4, the locking block 5 moves. Once the locking block 5 moves into the inside of hook 7, it can be placed into the trapezoidal groove for movement. After moving to the appropriate position, release pressure rod 3. Under the action of spring 6, the locking block 6 engages with the inside of the groove, thus fixing hook 7 inside the trapezoidal groove. This prevents it from slipping out of the groove and falling off due to shaking, vibration, or accidental collision during operation, greatly improving the surgical process. For safety, the hook 7 has a rectangular groove on its surface, and a slider 12 is slidably connected to the inner wall of the rectangular groove. The hook 7 has a second cavity inside, and a round rod 8 extends through the inner wall of the second cavity. One end of the round rod 8 is fixedly connected to a first bevel gear 9, and a second bevel gear 10 meshes with the surface of the first bevel gear 9. A threaded rod 11 is fixedly connected to the center of the second bevel gear 10, and the surface of the threaded rod 11 is threadedly connected to the interior of the slider 12. A pressure plate 13 is fixedly connected to the surface of the slider 12. The hook 7 is designed with the following components: round rod 8, first bevel gear 9, second bevel gear 10, threaded rod 11, slider 12, and pressure plate 13. When clamping the drainage tube, first turn the knob to drive the round rod 8 to rotate. Under the combined action of the first bevel gear 9 and the second bevel gear 10, the threaded rod 11 rotates, which in turn drives the threaded slider 12 to move. Under the combined action of the threaded rod and the slider, the pressure plate moves, which opens the pressure plate. Then, the drainage tube is inserted, and the knob is reversed to clamp the drainage tube. This device can clamp drainage tubes of different sizes and can be quickly adjusted and put into use according to the actual situation of the drainage tube. It can shorten the preparation time of surgical instruments and make the whole surgical process smoother and more efficient.
[0027] The other end of the round rod 8 extends to the outside of the hook 7, and a knob 14 is fixedly connected to the other end of the round rod 8 to facilitate rotation by medical staff;
[0028] A cover plate 2 is installed on one side of the mounting plate 1, and a handle 15 is fixedly connected to the surface of the cover plate 2 to facilitate medical staff to open the cover plate 2.
[0029] A limiting groove is provided on the inner side wall of the first cavity, and a limiting block is fixedly connected to one end of the movable rod 4 to facilitate the movement of the movable rod 4 in a specific position. The limiting block is slidably connected to the inside of the limiting groove.
[0030] One side of the mounting plate 1 is equipped with a Velcro female side, and the other side of the mounting plate 1 is equipped with a strap 16, which makes it easy for medical staff to quickly fix the device. One end of the strap 16 is provided with a Velcro female side.
[0031] The inner bottom wall of the rectangular groove is provided with a rotating groove to make the rotation more stable, and the threaded rod 11 rotates inside the rotating groove.
[0032] In this invention, the working steps of the device are as follows:
[0033] First step: First, open the cover plate 2 and press the pressure rod 3 to move the movable rod 4. At the same time, squeeze the spring 6. Under the combined action of the pressure rod 3 and the movable rod 4, the locking block 5 moves. When the locking block 5 moves into the inside of the hook 7, it can be placed into the trapezoidal groove and moved. When it moves to the appropriate position, the pressure rod 3 can be released. Under the action of the spring 6, the locking block 6 will engage with the inside of the groove, thus fixing the hook 7 inside the trapezoidal groove. This prevents the hook 7 from slipping out of the groove and falling off due to shaking, vibration or accidental collision during operation, greatly improving the safety of the surgical procedure.
[0034] The second step: Then, turn the knob to drive the round rod 8 to rotate. Under the combined action of the first bevel gear 9 and the second bevel gear 10, the threaded rod 11 rotates, which in turn drives the threaded slider 12 to move. Under the combined action of the threaded rod and the slider, the pressure plate moves, thus opening the pressure plate. Then, insert the drainage tube and reverse the knob to clamp the drainage tube. This device can clamp drainage tubes of different sizes and can be quickly adjusted and put into use according to the actual situation of the drainage tube. It can shorten the preparation time of surgical instruments and make the entire surgical process smoother and more efficient.
[0035] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0036] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A drain retractor comprising a mounting plate (1) characterized in that: The bottom surface of the mounting plate (1) is provided with a trapezoidal groove, the inner side wall of the trapezoidal groove is provided with a clamping groove, the inner side wall of the trapezoidal groove is slidably connected with a hook (7), the inside of the hook (7) is provided with a first cavity, the inner side wall of the first cavity is slidably connected with a movable rod (4), the surface of the movable rod (4) is fixedly connected with a pressing rod (3), one end of the pressing rod (3) extends to the outside of the first cavity, the two movable rods (4) are commonly connected with a spring (6), one end of the movable rod (4) is fixedly connected with a clamping block (5), the clamping block (5) is clamped in the clamping groove, the surface of the hook (7) is provided with a rectangular groove, the inner side wall of the rectangular groove is slidably connected with a sliding block (12), the inside of the hook (7) is provided with a second cavity, the inner side wall of the second cavity is movably penetrated by a round rod (8), one end of the round rod (8) is fixedly connected with a first bevel gear (9), the surface of the first bevel gear (9) is engaged with a second bevel gear (10), the center of the second bevel gear (10) is fixedly connected with a threaded rod (11), the surface of the threaded rod (11) is threadedly connected in the inside of the sliding block (12), the surface of the sliding block (12) is fixedly connected with a pressing plate (13).
2. A drain retractor according to claim 1, wherein: The other end of the round rod (8) extends to the outside of the hook (7), and the other end of the round rod (8) is fixedly connected with a knob (14).
3. A drain retractor according to claim 1, wherein: One side of the mounting plate (1) is provided with a cover plate (2), and the surface of the cover plate (2) is fixedly connected with a handle (15).
4. The drain retractor according to claim 1, wherein: The inner side wall of the first cavity is provided with a limiting groove, and one end of the movable rod (4) is fixedly connected with a limiting block.
5. The drain retractor according to claim 1, wherein: One side of the mounting plate (1) is provided with a magic tape female face, and the other side of the mounting plate (1) is provided with a bandage (16), and one end of the bandage (16) is provided with a magic tape male face.
6. A drain retractor according to claim 1, wherein: The inner bottom wall of the rectangular groove is provided with a rotating groove, and the threaded rod (11) rotates in the rotating groove.