A new abdominal cavity retractor
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SIR RUN RUN HOSPITAL NANJING MEDICAL UNIV
- Filing Date
- 2025-02-25
- Publication Date
- 2026-08-07
AI Technical Summary
[0004]本实用新型要解决的技术问题是:现有技术中存在牵开器两臂不能调节的缺点,为此我们提出一种新型腹腔拉钩
[0012] In this invention, the existing abdominal retractor body has two arms of fixed length that cannot be adjusted. The length can be adjusted by adjusting the plate to achieve better exposure of the surgical field. The operator turns the handle to drive the connecting block to rotate, which causes the gear to drive the adjusting plate to move, making it easier to adjust the position of the adjusting plate during the operation.
Smart Images

Figure CN224598188U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of abdominal retractor technology, and in particular to a novel abdominal retractor. Background Technology
[0002] Retractors, also known as retractors, are used to retract tissues and expose the surgical area for easier exploration and operation. They can be divided into handheld retractors and automatic retractors, and come in various shapes and sizes. The appropriate retractor can be selected according to the needs of the surgery.
[0003] Because abdominal surgery involves various types of incisions and surgical procedures, the requirements for surgical field exposure and tissue retraction also vary. However, traditional fixed-length abdominal retractors cannot be adaptively adjusted according to the actual situation of the surgical incision, resulting in a limited surgical field and narrow operating space. This not only increases the difficulty of the surgery but may also affect the accuracy and safety of the surgery. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that the two arms of the retractor cannot be adjusted. To address this, we propose a new type of abdominal retractor.
[0005] To achieve the above objectives, this application adopts the following technical solution: a novel abdominal retractor, comprising an abdominal retractor body, the top of which is provided with three adjustment grooves, an adjustment plate slidably connected inside the adjustment grooves, a rotating rod rotatably connected inside the adjustment grooves, a gear fixedly connected to the outer diameter of the rotating rod, a connecting block fixedly connected to the front end of the rotating rod, a handle attached to the front end of the connecting block, and several teeth grooves provided on the side of the adjustment plate near the gear, the surface of the gear meshing with the teeth grooves.
[0006] Preferably, both ends of the adjustment groove are provided with sliding grooves, and both ends of the adjustment plate are fixedly connected with sliders, the surface of the sliders being slidably connected to the inside of the sliding grooves.
[0007] Preferably, the rear end of the abdominal retractor body is provided with a control groove, a control block is slidably connected inside the control groove, a through groove is provided inside the control groove on the side near the adjustment plate, an insert is fixedly connected to one side of the control block, and a number of slots are provided on the side of the adjustment plate near the control block.
[0008] Preferably, the size of the insert is adapted to the size of the slot, and the surface of the insert is slidably connected to the interior of the slot.
[0009] Preferably, a storage spring is fixedly connected to the front end of the control block, and the front end of the storage spring is fixedly connected to the inside of the control slot.
[0010] Preferably, guide grooves are provided at both ends of the control groove, and guide blocks are fixedly connected to both ends of the control block, with the surface of the guide block slidingly connected to the interior of the guide groove.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] In this invention, the existing abdominal retractor body has two arms of fixed length that cannot be adjusted. The length can be adjusted by adjusting the plate to achieve better exposure of the surgical field. The operator turns the handle to drive the connecting block to rotate, which causes the gear to drive the adjusting plate to move, making it easier to adjust the position of the adjusting plate during the operation. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0014] Figure 2 This is a partial cross-sectional view of the present invention.
[0015] Figure 3 This is a partial cross-sectional view of the abdominal retractor body of this utility model;
[0016] Figure 4 This is a schematic diagram of the internal structure of the adjusting groove of this utility model;
[0017] Figure 5 This is a schematic diagram of the transverse cross-sectional structure of the abdominal retractor body of this utility model.
[0018] Legend: 1. Abdominal retractor body; 2. Adjustment groove; 3. Adjustment plate; 4. Connecting block; 5. Rotary handle; 6. Gear; 7. Rotary rod; 8. Tooth pattern; 9. Slide groove; 10. Sliding block; 11. Control groove; 12. Control block; 13. Through groove; 14. Insert block; 15. Slot; 16. Storage spring; 17. Guide groove; 18. Guide block. Detailed Implementation
[0019] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.
[0020] Reference Figure 1 - Figure 4As shown, this utility model provides a technical solution: a novel abdominal retractor, including an abdominal retractor body 1. The top of the abdominal retractor body 1 has three adjustment grooves 2. An adjustment plate 3 is slidably connected inside the adjustment grooves 2. A rotating rod 7 is rotatably connected inside the adjustment grooves 2. A gear 6 is fixedly connected to the outer diameter of the rotating rod 7. A connecting block 4 is fixedly connected to the front end of the rotating rod 7. A handle 5 is attached to the front end of the connecting block 4. Several teeth 8 are provided on the side of the adjustment plate 3 near the gear 6. The surface of the gear 6 meshes with the teeth 8. The existing abdominal retractor body 1 has two arms of fixed length that cannot be adjusted. The length can be adjusted by the adjustment plate 3 to achieve better exposure of the surgical field. The operator rotates the handle 5 to rotate the connecting block 4, causing the gear 6 to move the adjustment plate 3, making it easier to adjust the position of the adjustment plate 3 during surgery.
[0021] Reference Figure 1 - Figure 4 As shown in this embodiment: both ends of the adjusting groove 2 are provided with sliding grooves 9, and both ends of the adjusting plate 3 are fixedly connected with sliders 10. The surface of the sliders 10 is slidably connected to the inside of the sliding groove 9. When the operator moves the adjusting plate 3, the adjusting plate 3 drives the sliders 10 to move inside the sliding groove 9. Through the above settings, the positioning and stable support of the component are achieved. In addition, it can absorb the vibration caused by improper operation or external impact, thereby protecting the internal precision components from damage.
[0022] Reference Figure 1 - Figure 5 As shown in this embodiment: a control groove 11 is provided at the rear end of the abdominal retractor body 1, a control block 12 is slidably connected inside the control groove 11, a through groove 13 is provided inside the control groove 11 near the adjustment plate 3, an insert block 14 is fixedly connected to one side of the control block 12, and several slots 15 are provided on the side of the adjustment plate 3 near the control block 12. When the operator pushes the control block 12 into the control groove 11, the control block 12 drives the insert block 14 to be limited, and the insert block 14 is released from the limitation between the insert block 14 and the slot 15. At the same time, the limitation of the adjustment plate 3 is also released. Through the above settings, the operator can fix the position of the adjustment plate 3.
[0023] Reference Figure 1 - Figure 5 As shown in this embodiment: the size of the insert 14 is adapted to the size of the slot 15, and the surface of the insert 14 is slidably connected to the interior of the slot 15. By adapting the size of the insert 14 to the size of the slot 15, the surface and interior of the insert 14 and the slot 15 are connected by sliding fit. The precise matching of the sizes ensures seamless connection between the two, effectively transmitting force and motion. This design improves mechanical performance while reducing wear and energy loss.
[0024] Reference Figure 1 - Figure 5 As shown in this embodiment: a storage spring 16 is fixedly connected to the front end of the control block 12. The front end of the storage spring 16 is fixedly connected to the inside of the control groove 11. When the operator pushes the control block 12 into the control groove 11, the control block 12 compresses the storage spring 16 to store force, and at the same time, it causes the insertion block 14 to release the limit between itself and the slot 15. After the operator adjusts the appropriate position of the adjustment plate 3, the control block 12 is released. Under the action of the rebound force of the storage spring 16, the insertion block 14 is quickly inserted into the slot 15 for fixing.
[0025] Reference Figure 1 - Figure 5 As shown in this embodiment: guide grooves 17 are provided at both ends of the control groove 11, and guide blocks 18 are fixedly connected to both ends of the control block 12. The surface of the guide block 18 is slidably connected to the inside of the guide groove 17, which realizes the effective utilization of the internal space of the control groove 11, while ensuring the tight fit between the control block 12 and the guide block 18, thereby improving the stability of the overall structure and the flexibility of operation. In addition, the sliding fit design between the guide groove 17 and the guide block 18 can also reduce friction, extend the service life of the equipment, and reduce maintenance costs to a certain extent.
[0026] Working Principle: The existing abdominal retractor body 1 has fixed-length arms that cannot be adjusted. The length can be adjusted via the adjustment plate 3 to better expose the surgical field. The operator rotates the handle 5, causing the connecting block 4 to rotate, which in turn causes the gear 6 to move the adjustment plate 3, facilitating intraoperative adjustment of its position. As the operator moves the adjustment plate 3, it moves the slider 10 within the groove 9. This design achieves component positioning and stable support, and also absorbs vibrations caused by improper operation or external impacts, protecting internal precision components from damage. The operator pushes the control block 12 into the control groove 11, causing the insertion block 14 to be limited and released from its position relative to the slot 15. Simultaneously, the adjustment plate 3 is also released from its position. This design allows the operator to fix the position of the adjustment plate 3, thanks to the matching size of the insertion block 14 and the slot 15. The surface and interior of the insert block 14 and the slot 15 are connected by a sliding fit. The precise matching of dimensions ensures a seamless connection between the two, effectively transmitting force and motion. This design improves mechanical performance while reducing wear and energy loss. The operator pushes the control block 12 into the control slot 11. The control block 12 compresses the storage spring 16 to store force, while simultaneously releasing the limit between the insert block 14 and the slot 15. After the operator adjusts the appropriate position of the adjustment plate 3, the control block 12 is released. Under the action of the rebound force of the storage spring 16, the insert block 14 is quickly inserted into the slot 15 for fixation. This achieves effective utilization of the internal space of the control slot 11, while ensuring a tight fit between the control block 12 and the guide block 18, thereby improving the stability of the overall structure and the flexibility of operation. In addition, the sliding fit design between the guide slot 17 and the guide block 18 can also reduce friction, extend the service life of the equipment, and reduce maintenance costs to a certain extent.
[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel abdominal retractor, comprising an abdominal retractor body (1), characterized in that: The top of the abdominal retractor body (1) is provided with three adjustment grooves (2). An adjustment plate (3) is slidably connected inside the adjustment groove (2). A rotating rod (7) is rotatably connected inside the adjustment groove (2). A gear (6) is fixedly connected to the outer diameter of the rotating rod (7). A connecting block (4) is fixedly connected to the front end of the rotating rod (7). A handle (5) is attached to the front end of the connecting block (4). Several teeth (8) are provided on the side of the adjustment plate (3) near the gear (6). The surface of the gear (6) meshes with the teeth (8).
2. The novel abdominal retractor according to claim 1, characterized in that: The adjustment groove (2) has sliding grooves (9) at both ends, and the adjustment plate (3) has sliders (10) fixedly connected to both ends. The surface of the sliders (10) is slidably connected to the inside of the sliding grooves (9).
3. The novel abdominal retractor according to claim 1, characterized in that: The abdominal retractor body (1) has a control groove (11) at its rear end. A control block (12) is slidably connected inside the control groove (11). A through groove (13) is provided inside the control groove (11) on the side near the adjustment plate (3). An insert block (14) is fixedly connected to one side of the control block (12). Several slots (15) are provided on the side of the adjustment plate (3) near the control block (12).
4. The novel abdominal retractor according to claim 3, characterized in that: The size of the insert (14) is adapted to the size of the slot (15), and the surface of the insert (14) is slidably connected to the interior of the slot (15).
5. A novel abdominal retractor according to claim 3, characterized in that: The front end of the control block (12) is fixedly connected to a storage spring (16), and the front end of the storage spring (16) is fixedly connected to the inside of the control groove (11).
6. A novel abdominal retractor according to claim 3, characterized in that: The control groove (11) has guide grooves (17) at both ends, and the control block (12) has guide blocks (18) fixedly connected to both ends. The surface of the guide block (18) is slidably connected to the inside of the guide groove (17).