A distraction device for abdominal surgery

Abstract

The utility model relates to the technical field of abdominal surgery device, and disclose a kind of abdominal surgery with distraction device, including annular seat, distraction rod, distraction device, slide rail seat, fine adjustment seat;The bottom of annular seat is equipped with support plate, the bottom of support plate is equipped with mounting plate, the both sides of mounting plate bottom are rotatably connected with distraction rod, the center position of the bottom of annular seat is equipped with the helical transmission shaft of vertical direction setting, the side of distraction rod away from helical transmission shaft is equipped with distraction device, the front side between the distraction device of both sides is equipped with slide rail seat.This abdominal surgery with distraction device, by driving motor drives helical transmission shaft rotation, to drive transmission nut moves up and down, the up and down movement of transmission nut further drives distraction rod and the distraction action of distraction device, while cooperating with the movement guide function of slide rail seat, so that the whole distraction process is stable and accurate, so that the device can realize the effective, stable distraction of patient abdominal cavity.

Description

Technical Field

[0001] This utility model relates to the field of abdominal surgical devices, specifically a dissector for abdominal surgery. Background Technology

[0002] An abdominal surgical retractor is a medical device used to open up the abdominal cavity of a patient during abdominal surgery so that the surgeon can perform the surgical procedure.

[0003] Currently, most existing abdominal surgical retraction devices rely on motor-driven mechanisms. While motor-driven devices can provide a certain amount of retraction force to roughly open the abdominal cavity, they fall short in terms of fine-tuning. This is because motor-driven retraction devices often lack precise adjustment mechanisms, making it difficult for surgeons to make accurate and subtle adjustments to the retraction range during surgery, thus affecting the accuracy and safety of the operation. Furthermore, motor-driven retraction methods can easily cause injury to the patient. Due to the relatively large retraction force of the motor and the lack of necessary buffering and adjustment mechanisms, excessive pressure may be applied to the abdominal tissues during retraction, leading to tissue damage, bleeding, and other adverse reactions. Therefore, this invention provides a retraction device for abdominal surgery. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a dissector for abdominal surgery, which has the advantages of stable dissector opening and fine-tuning capability, thus solving the problems of insufficient dissector opening stability and poor fine-tuning capability.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned stable expansion and fine-tuning objectives, this utility model provides the following technical solution:

[0008] An abdominal surgical retraction device includes a ring seat, a retraction rod, a retractor, a slide rail seat, and a fine-tuning seat;

[0009] The bottom of the annular seat is provided with a support plate, the bottom of the support plate is provided with a mounting plate, and the bottom sides of the mounting plate are rotatably connected with a spreading rod. The center of the bottom of the annular seat is provided with a vertically arranged spiral drive shaft. The side of the spreading rod away from the spiral drive shaft is provided with a spreader. The front side between the two spreaders is provided with a slide rail seat, and the top side of the slide rail seat is provided with a fine adjustment seat.

[0010] As a preferred technical solution of this utility model, a motor slot is provided in the middle of the annular seat, and a drive motor is provided inside the motor slot. One end of the bottom of the drive motor is connected to the spiral transmission shaft.

[0011] As a preferred technical solution of this utility model, the spiral drive shaft is provided with a drive nut, and the two sides of the drive nut are provided with multi-stage connecting rods at the connection points with the spreading rod.

[0012] As a preferred embodiment of this utility model, the expander is provided with a fixed plate on the side facing the expander rod, the expander is provided with a head end on the side away from the expander rod, elastic connecting rods are provided on the top and bottom sides of the connection between the head end and the fixed plate, and a guide connecting rod is provided in the middle of the connection between the head end and the fixed plate.

[0013] As a preferred technical solution of this utility model, a slide rail is provided inside the slide rail seat, and sliders are provided on both sides of the slide rail. One end of the slider is connected to the expander, and a connecting column is provided on the top of the slider. The other end of the connecting column is connected to the fine-tuning seat.

[0014] As a preferred technical solution of this utility model, a fine-tuning handle is provided on one side of the fine-tuning seat, and a bidirectional threaded rod is provided inside the fine-tuning seat. One end of the bidirectional threaded rod is connected to the fine-tuning handle, and the connecting posts on both sides are threaded to the two sides of the bottom of the bidirectional threaded rod.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a dissector for abdominal surgery, which has the following advantages:

[0017] This abdominal surgical retraction device uses a drive motor to rotate a helical transmission shaft, which in turn moves a transmission nut up and down. This movement of the transmission nut further drives the retraction rod and retractor. Combined with the guiding function of the slide rail, the entire retraction process is smooth and precise, enabling the device to effectively and stably retract the patient's abdominal cavity. Furthermore, by adjusting the bidirectional threaded rod inside the micro-adjustment seat with the micro-adjustment handle, the retractor can be precisely adjusted along the slide rail. This allows for rapid and accurate adjustment of the retraction range during surgery according to actual needs. In addition, the elastic connecting rod inside the retractor provides necessary cushioning during the retraction process, reducing pressure and discomfort on the patient's abdominal cavity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal spiral drive shaft driving the support rod of this utility model.

[0020] Figure 3 This is a schematic diagram of the slide rail seat and fine-tuning seat of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the expander of this utility model.

[0022] In the diagram: 1. Ring seat; 2. Support plate; 3. Mounting plate; 4. Spreading rod; 5. Screw drive shaft; 6. Spreader; 7. Slide rail seat; 8. Fine-tuning seat; 9. Motor slot; 10. Drive motor; 11. Transmission nut; 12. Multi-stage connecting rod; 13. Fixing plate; 14. Head end; 15. Elastic connecting rod; 16. Guide connecting rod; 17. Slide rail; 18. Slider; 19. Connecting column; 20. Fine-tuning handle; 21. Bidirectional threaded rod. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1-4 ,

[0027] Example 1: A retraction device for abdominal surgery includes an annular seat 1, retraction rods 4, a retractor 6, a slide rail seat 7, and a fine-tuning seat 8. The annular seat 1 serves as the basic support structure for the entire retraction device, used to install and fix other components. A support plate 2 is provided at the bottom of the annular seat 1, which connects the annular seat to the mounting plate and provides stable support. A mounting plate 3 is provided at the bottom of the support plate 2, which is used to fix the retraction device on the operating table or other suitable position. Retraction rods 4 are rotatably connected to both sides of the bottom of the mounting plate 3, and the retraction rods 4 are used to perform the retraction action. The center of the bottom of the annular seat 1 A vertically oriented helical drive shaft 5 is provided at the position. The helical drive shaft 5 is used to drive the transmission nut to move up and down by rotation. A spreader 6 is provided on the side of the spreading rod 4 away from the helical drive shaft 5. The spreader 6 acts directly on the patient's abdominal cavity to achieve the spreading effect. A slide rail seat 7 is provided on the front side between the two spreaders 6. The slide rail seat is used to provide a sliding track for the spreader, so that it can move in a certain direction. A fine adjustment seat 8 is provided on the top side of the slide rail seat 7. The fine adjustment seat 8 is used to realize the fine adjustment function of the spreader. A connecting plate is provided on the top of the fine adjustment seat 8. The connecting plate is used to connect the fine adjustment seat 8 and the mounting plate 3.

[0028] It should be noted that the four corners of the bottom of the ring seat 1 are equipped with support legs, and each support leg is equipped with a telescopic rod at the bottom, allowing doctors or operators to make precise manual adjustments to the support legs according to the height of the operating table, the patient's body size, and the specific needs of the surgery.

[0029] In this embodiment, a motor slot 9 is provided in the middle of the annular seat 1. The motor slot 9 is used to install a drive motor. A drive motor 10 is provided inside the motor slot 9. The drive motor 10 is used to drive the spiral drive shaft to rotate. One end of the bottom of the drive motor 10 is connected to the spiral drive shaft 5.

[0030] In this embodiment, a transmission nut 11 is provided on the screw drive shaft 5. The transmission nut 11 is used to cooperate with the screw drive shaft to realize up and down movement. Multi-stage connecting rods 12 are provided at the connection points between the transmission nut 11 and the support rod 4 on both sides. The ball heads of the multi-stage connecting rods 12 connect the transmission nut 11 and the screw drive shaft 5. The multi-stage connecting rods 12 are used to connect the transmission nut and the support rod to transmit power.

[0031] In this embodiment, a fixing plate 13 is provided on the side of the retractor 6 facing the retractor rod 4. The fixing plate 13 is used to fix one end of the retractor so that it can stably open the abdominal cavity. A head end 14 is provided on the side of the retractor 6 away from the retractor rod 4. The head end 14 directly acts on the abdominal cavity tissue. Elastic connecting rods 15 are provided on the top and bottom sides of the connection between the head end 14 and the fixing plate 13. The elastic connecting rod 15 is a combination of a buffer spring and a guide rod. The elastic connecting rod 15 is used to provide a buffering effect for the retractor and reduce the pressure on the patient's abdominal cavity. A guide connecting rod 16 is provided in the middle of the connection between the head end 14 and the fixing plate 13. A guide groove for placing the guide connecting rod 16 is opened inside the fixing plate 13. The guide connecting rod 16 is used to ensure that the retractor maintains a stable direction of movement during the opening process.

[0032] It should be noted that when the device is in operation, the drive motor 10 starts first, and drives the transmission nut 11 to move up and down through the screw drive shaft 5. The transmission nut 11 transmits power to the spreading rod 4 through the multi-stage connecting rod 12, causing the spreading rod 4 to rotate around the rotating connection point at the bottom of the mounting plate 3, thereby pushing the head end 14 of the spreader 6 towards the patient's abdominal cavity. As the spreading rod 4 rotates, the head end 14 of the spreader 6 gradually spreads open the patient's abdominal cavity. During this process, the elastic connecting rod 15 provides a buffering effect during the spreading process, reducing the pressure and discomfort on the patient's abdominal cavity, and the guide connecting rod 16 ensures that the spreader 6 maintains a stable direction of movement during the spreading process.

[0033] Example 2: It also includes a slide rail 17 inside the slide rail seat 7. Slide blocks 18 are provided on both sides of the slide rail 17. The slide rail 17 is used to provide a sliding path for the slide blocks 18, so that the expander can move along the slide rail. One end of the slide block 18 is connected to the expander 6. The slide block 18 is used to connect the expander and the slide rail, so that the expander can slide smoothly along the slide rail. A connecting post 19 is provided on the top of the slide block 18. The other end of the connecting post 19 is connected to the fine-tuning seat 8. The connecting post 19 is used to connect the slide block and the fine-tuning seat and transmit fine-tuning power.

[0034] In this embodiment, a fine-tuning handle 20 is provided on one side of the fine-tuning seat 8, and a bidirectional threaded rod 21 is provided inside the fine-tuning seat 8. One end of the bidirectional threaded rod 21 is connected to the fine-tuning handle 20. The top end of the connecting column is provided with threads that match the two sides of the bidirectional threaded rod. The connecting columns 19 on both sides are threaded to the two sides of the bottom of the bidirectional threaded rod 21. The fine-tuning handle 20 is used to manually rotate the bidirectional threaded rod to realize the fine-tuning of the spreader. The bidirectional threaded rod 21 drives the connecting column to move by rotation, thereby realizing the fine-tuning function of the spreader. When the bidirectional threaded rod rotates, since the rotation directions of the threads on both sides are different, the connecting columns in the two directions can be driven to move relative to each other.

[0035] It should be noted that when the opening range needs to be fine-tuned, the doctor can rotate the fine-tuning handle 20, which drives the bidirectional threaded rod 21 to rotate. Since the threads on both sides of the bidirectional threaded rod 21 have different directions of rotation, they can drive the connecting columns 19 in the two directions to move relative to each other. The connecting columns 19 drive the expander 6 to slide on the slide rail 17 through the slider 18, thereby realizing the fine-tuning of the opening range.

[0036] The beneficial effects of the above embodiments are as follows:

[0037] This abdominal surgical retraction device uses a drive motor 10 to drive a spiral drive shaft 5 to rotate, which in turn drives a transmission nut 11 to move up and down. The up and down movement of the transmission nut 11 further drives the retraction rod 4 and the retractor 6 to perform the retraction action. At the same time, in conjunction with the moving guide function of the slide rail seat 7, the entire retraction process is smooth and precise, enabling the device to effectively and stably retract the patient's abdominal cavity. Meanwhile, by adjusting the bidirectional threaded rod 21 inside the micro-adjustment seat 8 through the micro-adjustment handle 20, the retractor 6 can be precisely driven to make slight adjustments along the slide rail seat 7, allowing the device to quickly and accurately adjust the retraction range according to actual needs during the operation. In addition, the elastic connecting rod 15 inside the retractor 6 provides necessary buffering during the retraction process, which can reduce pressure and discomfort on the patient's abdominal cavity.

[0038] 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 retraction device for abdominal surgery, comprising a ring seat (1), a retraction rod (4), a retractor (6), a slide rail seat (7), and a fine-tuning seat (8); Its features are: The bottom of the annular seat (1) is provided with a support plate (2), the bottom of the support plate (2) is provided with a mounting plate (3), the bottom of the mounting plate (3) is rotatably connected with a support rod (4), the center of the bottom of the annular seat (1) is provided with a vertically arranged spiral drive shaft (5), the side of the support rod (4) away from the spiral drive shaft (5) is provided with a support device (6), the front side between the two support devices (6) is provided with a slide rail seat (7), and the top side of the slide rail seat (7) is provided with a fine adjustment seat (8).

2. The abdominal surgical retraction device according to claim 1, characterized in that: The annular seat (1) has a motor slot (9) in the middle, and a drive motor (10) is provided inside the motor slot (9). One end of the drive motor (10) is connected to the helical transmission shaft (5).

3. The abdominal surgical retraction device according to claim 1, characterized in that: The helical drive shaft (5) is provided with a drive nut (11), and the drive nut (11) is provided with multi-stage connecting rods (12) at the connection points between its two sides and the support rod (4).

4. The abdominal surgical retraction device according to claim 1, characterized in that: The spreader (6) has a fixed plate (13) on the side facing the spreader rod (4), and a head end (14) on the side away from the spreader rod (4). Elastic connecting rods (15) are provided on the top and bottom sides of the connection between the head end (14) and the fixed plate (13), and a guide connecting rod (16) is provided in the middle of the connection between the head end (14) and the fixed plate (13).

5. The abdominal surgical retraction device according to claim 1, characterized in that: The slide rail seat (7) has a slide rail (17) inside. The slide rail (17) has sliders (18) on both sides. One end of the slider (18) is connected to the spreader (6). The top of the slider (18) is provided with a connecting post (19). The other end of the connecting post (19) is connected to the fine-tuning seat (8).

6. The abdominal surgical retraction device according to claim 5, characterized in that: The fine-tuning seat (8) is provided with a fine-tuning handle (20) on one side, and a bidirectional threaded rod (21) is provided inside the fine-tuning seat (8). One end of the bidirectional threaded rod (21) is connected to the fine-tuning handle (20), and the connecting posts (19) on both sides are threaded to the two sides of the bottom of the bidirectional threaded rod (21).

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