Drag hook special for operation
By designing a connecting conversion head and an arc-shaped retractor head on the surgical retractor, the problems of smoke and fluid removal and tissue slippage during surgery are solved, achieving a clear surgical field and a stable operating space.
Patent Information
- Application Number
- CN202422775792.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-11-14
AI Technical Summary
Existing surgical retractors cannot effectively remove smoke and fluids generated during surgery, and tissues are prone to falling off the retractors, affecting the surgical field of vision and operation.
A hook with a connecting adapter is designed. The adapter has a socket for connecting a smoking tube and a liquid suction or rinsing tube. It is connected to the suction and exhaust port through a connecting pipe to realize the removal and absorption of smoke and liquid. At the same time, an arc structure is added to the design of the hook head to prevent tissue from slipping.
It effectively removes smoke and absorbs fluids during surgery, keeps the surgical field clear, prevents tissue slippage, and provides a stable operating space.
Smart Images

Figure CN223695923U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to surgical instruments. Background Technology
[0002] Surgical retractors, also known as retractors, are used to retract skin, subcutaneous tissue, muscles, and fascia to expose the surgical area, facilitating exploration and manipulation. However, during surgery, energy instruments such as electrocautery or ultrasonic scalpels are used to ablate tissue, producing smoke that obstructs vision and requires smoke extraction. Additionally, some fluids are generated during surgery, requiring suction and rinsing. Existing surgical retractors lack these functions. Furthermore, during use, skin, subcutaneous tissue, muscles, and fascia can easily fall off the retractor, affecting the procedure. Summary of the Invention
[0003] The purpose of this invention is to provide a surgical retractor that can vent smoke, absorb liquid, and rinse.
[0004] The technical solution of this utility model is: a surgical retractor, including a connecting arm, a horizontal arm, a straight arm, and a pulling arm. The connecting arm, the horizontal arm, the straight arm, and the pulling arm are connected to each other to form a hook shape. A connecting arm hole is opened in the connecting arm, a connecting adapter is opened in the straight arm, an insertion hole is opened in the connecting adapter, and a suction and exhaust port is opened in the pulling arm. The insertion hole and the suction and exhaust port are connected through a connecting pipe.
[0005] There are two adapter heads on the straight arm.
[0006] The aforementioned adapter is located on the inner side of the straight arm.
[0007] The cross-section of the connecting adapter is trapezoidal.
[0008] The suction and discharge ports are located on the side of the tension arm.
[0009] The suction and discharge ports are located on the bottom surface of the tension arm.
[0010] There are three suction and discharge ports.
[0011] There is an upward-curved hook head at the front end of the pull arm.
[0012] This invention has the following technical effects: During the operation, the pulling arm of the surgical hook is inserted under the skin flap through the incision and connected to the surgical support frame through the connecting arm hole. The flap muscle tissue is pulled upward, providing operating space for the operation. There is a connecting conversion head on the straight arm of the surgical hook. The connecting conversion head has a socket. There can be two connecting conversion heads. One socket is used to insert a smoking tube to remove the smoke generated in the surgical space during the tissue ablation process of energy instruments such as electrocautery or ultrasonic scalpel, ensuring a clear surgical field. The other socket is used to insert a suction or irrigation tube for suction and postoperative irrigation of the surgical cavity. The front end of the pulling arm has an upward arc-shaped hook head to prevent tissue from slipping off the hook. Attached Figure Description
[0013] Figure 1 This is the front view of this utility model.
[0014] Figure 2 This is a cross-sectional view of the present invention.
[0015] Figure 3 yes Figure 1 The left view.
[0016] Figure 4 yes Figure 1 A bottom view. Detailed Implementation
[0017] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a surgical retractor includes a connecting arm 1, a horizontal arm 2, a straight arm 3, and a pulling arm 4. The connecting arm 1, the horizontal arm 2, the straight arm 3, and the pulling arm 4 are connected to each other to form a hook shape. The connecting arm 1 has a connecting arm hole 1.1. The straight arm 3 has a connecting adapter 5 with an insertion hole 5.1. The pulling arm 4 has a suction / extraction port 4.1. The insertion hole 5.1 and the suction / extraction port 4.1 are connected by a connecting pipe 6.
[0018] There are two connecting adapters 5 on the straight arm 3.
[0019] The connecting adapter 5 is located on the inner side of the straight arm 3.
[0020] The cross-section of the aforementioned connector 5 is trapezoidal.
[0021] The suction and discharge port 4.1 is located on the side of the tension arm 4.
[0022] The suction and discharge port 4.1 is located on the bottom surface of the tension arm 4.
[0023] There are 3 suction and discharge ports 4.1.
[0024] There is an upward-curved hook head 7 at the front end of the pull arm 4.
[0025] How to use this utility model:
[0026] 1. Make an incision in the skin and separate the skin flaps;
[0027] 2. Insert the lifting arm 4 of the surgical retractor under the skin flap through the incision, and connect it to the surgical support frame through the connecting arm hole 1.1 of the connecting arm 1. Pull the skin flap muscle tissue upward to provide operating space for the operation; the arc-shaped retractor head 7 can prevent the tissue from slipping off the retractor.
[0028] 3. There can be two connection adapters: one connects to the suction device to eliminate the smoke generated in the surgical space during the tissue ablation process of energy instruments such as electrocautery or ultrasonic scalpel, ensuring a clear surgical field; the other connects to the infusion set for aspiration and postoperative irrigation of the surgical cavity.
Claims
1. A surgical retractor, characterized in that: It includes a connecting arm (1), a horizontal arm (2), a straight arm (3), and a tension arm (4). The connecting arm (1), the horizontal arm (2), the straight arm (3), and the tension arm (4) are connected to each other to form a hook shape. A connecting arm hole (1.1) is opened on the connecting arm (1). A connecting adapter (5) is on the straight arm (3). A socket (5.1) is opened on the connecting adapter (5). A suction and discharge port (4.1) is opened on the tension arm (4). The socket (5.1) and the suction and discharge port (4.1) are connected through a connecting pipe (6).
2. The surgical retractor according to claim 1, characterized in that: There are two connecting adapters (5) on the straight arm (3).
3. The surgical retractor according to claim 1, characterized in that: The connecting adapter (5) is on the inner side of the straight arm (3).
4. A surgical retractor according to claim 1, 2 or 3, characterized in that: The cross-section of the connecting adapter (5) is trapezoidal.
5. A surgical retractor according to claim 1, characterized in that: The suction and discharge port (4.1) is located on the side of the tension arm (4).
6. The surgical retractor according to claim 1, characterized in that: The suction and discharge port (4.1) is located on the bottom surface of the tension arm (4).
7. A surgical retractor according to claim 1, characterized in that: There are 3 suction and discharge ports (4.1).
8. A surgical retractor according to claim 1, characterized in that: There is an upward-curved hook head (7) at the front end of the pull arm (4).