Double-end drag hook

Abstract

The utility model relates to a double-end draw hook, which belongs to the technical field of medical instruments and comprises a handheld part, a first draw hook part and a second draw hook part are respectively arranged at two ends of the handheld part, the first draw hook part comprises a first U-shaped draw hook head, a first groove is arranged on the first U-shaped draw hook head, and the first groove is arranged along a U-shaped profile path of the first U-shaped draw hook head. An opening of the first groove is formed towards the peripheral side; the second draw hook part comprises a second U-shaped draw hook head, a second groove is formed in the second U-shaped draw hook head, the second groove is formed along the U-shaped outline path of the second U-shaped draw hook head, and an opening of the second groove is formed towards the peripheral side; wherein the size of the first U-shaped retractor head is larger than that of the second U-shaped retractor head, and the size of the first groove is larger than that of the second groove. According to the utility model, soft tissue wounds can be reduced, incision healing is facilitated, postoperative scars are reduced, and a better cosmetic effect can be obtained; and meanwhile, the device can be suitable for flap traction operations with different thicknesses and different traction depths, and is suitable for deep cavity construction operations.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a double-head retractor. Background Art

[0002] At present, laparoscopic thyroid surgery requires a cavity to be created through an incision on the body surface and the skin to be retracted. Traditional retraction often uses straight vascular clamps or Alice clamps, which can easily cause damage to soft tissues. In addition, the two ends of the skin incision cannot expose the subcutaneous tissue at the separation angle because the opening angle formed is small.

[0003] In the prior art, for example, there is a surgical retractor with a publication number of CN217366169U, which includes a retractor arm, one end of which is connected to a single-head retractor, and the other end of which is connected to a double-head retractor; the double-head retractor includes two "V"-shaped pull rods, the converging ends of the two pull rods are connected to the retractor arm, and the open ends of the two pull rods are respectively connected to a hook body, and the hook body is in a smooth arc shape. In this surgical retractor, the double-head retractor can effectively open a triangular space at the wound to facilitate surgical suturing operations, and the single-head retractor is easy to hold; the hook body of the double-head retractor is smooth, which can reduce damage to animal muscles and skin during surgery. However, when the above-mentioned surgical retractor is used, since the double-head retractor has a "V"-shaped pull rod, when the double-head retractor is applied to the two ends of the skin incision, its contact surface with the skin incision is too small, and the subcutaneous tissue of the skin at the separation angle cannot be effectively exposed during the pulling process, and it is also easy to cause the end of the incision to tear. Utility Model Content

[0004] In order to solve the problem in the prior art that the double-headed retractor cannot effectively expose the subcutaneous tissue of the skin at the separation angle, the utility model provides a double-headed retractor, which can effectively expose the subcutaneous tissue of the skin at the separation angle and reduce the tearing phenomenon at the end of the incision.

[0005] It adopts the following technical solutions:

[0006] A double-headed hook, comprising a hand-held portion, with a first hook portion and a second hook portion respectively disposed at both ends of the hand-held portion, wherein the first hook portion comprises a first U-shaped hook head, and a first groove is disposed on the first U-shaped hook head, the first groove is disposed along a U-shaped profile path of the first U-shaped hook head, and an opening of the first groove is disposed toward the outer peripheral side;

[0007] The second hook portion includes a second U-shaped hook head, on which a second groove is provided, the second groove is arranged along the U-shaped contour path of the second U-shaped hook head, and the opening of the second groove is arranged toward the outer peripheral side;

[0008] Among them, the size of the first U-shaped hook head is larger than that of the second U-shaped hook head, and the size of the first groove is larger than that of the second groove.

[0009] Furthermore, the first groove is a U-shaped groove, and groove walls on both sides are arranged in parallel.

[0010] Furthermore, the opening size of the first U-shaped hook head gradually increases from the rear end to the front end.

[0011] Furthermore, the handle is a long plate-like structure, and the first and second hook parts are respectively located on the upper and lower sides of the handle; the wall body where the lower side groove wall of the first groove is located is integrally connected to the handle, and the wall body where the upper side groove wall of the second groove is located is integrally connected to the handle.

[0012] Furthermore, a limiting plate is integrally connected to the wall body where the upper groove wall of the first groove is located. The limiting plate is axially arranged along the handle and extends inwardly toward the handle, and the lower surface of the limiting plate is coplanar with the upper groove wall of the first groove.

[0013] Furthermore, the second groove is an arc-shaped groove.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The first and second grooves are arranged correspondingly according to the contour paths of the first and second U-shaped retractor heads, so that they have an overall arc shape. The arc contact surfaces of the first and second grooves are used to clamp and pull soft tissues such as skin, without sharp injuries caused by tools such as clamps, thereby reducing soft tissue trauma and tearing at the end of the incision, facilitating incision healing, reducing postoperative scars, and achieving better cosmetic effects.

[0016] By arranging the first and second retractor parts at both ends of the hand-held part, and the size of the first U-shaped retractor head is larger than the size of the second U-shaped retractor head, and the size of the first groove is larger than the size of the second groove, the corresponding first and second retractor parts can be selected according to the size and depth of the skin incision, so that the double-headed retractor can adapt to skin flap traction surgery with different thicknesses and different pulling depths, and is very practical for deep cavity creation surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a double-headed draw hook according to an embodiment of the utility model;

[0018] Figure 2 yes Figure 1 A schematic diagram of a top view structure of a double-headed retractor;

[0019] Figure 3 yes Figure 2 Schematic diagram of the structure in the A direction.

[0020] Explanation of the reference numerals: 1. Hand-held portion; 2. First hook portion; 21. First U-shaped hook head; 22. First groove; 23. Limiting plate; 3. Second hook portion; 31. Second U-shaped hook head; 32. Second groove. DETAILED DESCRIPTION

[0021] In order to make the present invention more clearly understood, a double-headed hook of the present invention is further described below in conjunction with the accompanying drawings. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] like Figures 1 to 3 As shown, a double-headed hook includes a hand-held portion 1, with a first hook portion 2 and a second hook portion 3 connected at both ends of the hand-held portion. The first hook portion 2 includes a first U-shaped hook head 21, and the opening of the first U-shaped hook head 21 faces outward, that is, away from the hand-held portion 1. A first groove 22 is provided on the first U-shaped hook head 21, and the first groove 22 is arranged along the path of the U-shaped contour of the first U-shaped hook head 21, so that the whole has an arc shape, and the opening of the first groove 22 is arranged outward. Here, the first groove 22 opening outward means Figure 2 The first groove 22 opens toward the upper and lower sides and toward the handle 1. The second hook portion 3 includes a second U-shaped hook head 31, and a second groove 32 is provided outside the second U-shaped hook head 31, and the opening of the second groove 32 faces outward, which is completely opposite to the opening direction of the first groove 22. The second groove 32 is arranged along the U-shaped contour path of the second U-shaped hook head 31, so that the whole has an arc shape, and the opening of the second groove 32 is arranged outward. Here, the second groove 32 opening outward means Figure 2 The second groove 32 opens toward the upper and lower sides and faces the hand-held part 1 .

[0023] The size of the first U-shaped hook head 21 is larger than that of the second U-shaped hook head 31, and the size of the first groove 22 is larger than that of the second groove 32. The first groove 22 is used to clamp larger and deeper skin incisions, and the second groove 32 is used to clamp smaller and shallower skin incisions. In addition, the inner walls of the first and second grooves are both smooth to prevent them from causing damage in the process of clamping skin tissue. In this embodiment, the first and second hook parts can be stamped and formed by medical-grade stainless steel sheets, or can be injection-molded by general medical-grade hard engineering plastics.

[0024] In some embodiments, the opening size of the first U-shaped hook head 21 gradually increases from the tail end to the front end, and the angle thereof can be selected between 10° and 30°. The first groove 22 is a U-shaped groove having groove walls parallel to both sides and an arc-shaped groove bottom connected to the groove walls. The second groove 32 is preferably an arc-shaped groove, that is, its groove cross section is a semicircular arc.

[0025] In some embodiments, the handle 1 is preferably a long strip-shaped structure, and the first and second hook portions are respectively located on the upper and lower sides of the handle 1. Specifically, the wall body where the lower groove wall of the first groove 22 is located is integrally connected to the end of the handle 1, and the wall body where the upper groove wall of the second groove 32 is located is integrally connected to the other end of the handle 1.

[0026] In some embodiments, a limiting plate 23 is integrally connected to the wall body where the upper groove wall of the first groove 22 is located. The limiting plate 23 is axially arranged along the hand-held portion 1 and extends inwardly toward the hand-held portion 1. The limiting plate 23 is crescent-shaped as a whole, and its lower surface is coplanar with the upper groove wall of the first groove 22 to increase the clamping depth of the skin tissue.

[0027] When the device is in use, the first and second grooves are arranged according to the contour path of the U-shaped retractor head where they are located, so that they have an arc shape as a whole, and the arc contact surface of the first and second grooves is used to clamp and pull the skin and other soft tissues, without sharp damage by tools such as clamps, etc., reducing soft tissue trauma and tearing at the end of the incision, which is conducive to incision healing, less postoperative scars, and can obtain better cosmetic effects. In addition, the corresponding first and second retractor parts can be selected according to the size and depth of the skin incision, so that the double-head retractor can adapt to skin flap traction surgery with different thicknesses and different pulling depths, which is very practical for deep cavity surgery.

[0028] The above embodiments of the utility model are merely examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the utility model still belong to the protection scope of the utility model.

Claims

1. A double-ended hook, comprising a hand-held portion (1), wherein the first hook portion (2) and the second hook portion (3) are respectively disposed at two ends of the hand-held portion (1), wherein: The first hook portion (2) comprises a first U-shaped hook head (21), a first groove (22) being provided on the first U-shaped hook head (21), the first groove (22) being arranged along the U-shaped profile path of the first U-shaped hook head (21), and the opening of the first groove (22) being arranged towards the outer peripheral side; The second hook portion (3) comprises a second U-shaped hook head (31), a second groove (32) being provided on the second U-shaped hook head (31), the second groove (32) being arranged along the U-shaped contour path of the second U-shaped hook head (31), and the opening of the second groove (32) being arranged towards the outer peripheral side; The size of the first U-shaped hook head (21) is larger than that of the second U-shaped hook head (31), and the size of the first groove (22) is larger than that of the second groove (32).

2. A double-ended retractor according to claim 1, characterized in that: The first groove (22) is a U-shaped groove, and groove walls on both sides are arranged in parallel.

3. A double-ended retractor according to claim 2, characterized in that: The opening size of the first U-shaped hook head (21) gradually increases from the rear end to the front end.

4. A double-ended retractor according to claim 1 or 3, characterized in that: The hand-held portion (1) is a long strip-shaped structure, and the first and second hook portions are respectively located on the upper and lower sides of the hand-held portion (1); the wall body where the lower groove wall of the first groove (22) is located is integrally connected to the hand-held portion (1), and the wall body where the upper groove wall of the second groove (32) is located is integrally connected to the hand-held portion (1).

5. A double-ended retractor according to claim 4, characterized in that: A limiting plate (23) is also integrally connected to the wall body where the upper groove wall of the first groove (22) is located. The limiting plate (23) is arranged along the axial direction of the hand-held portion (1) and extends inwardly toward the hand-held portion (1). The lower surface of the limiting plate (23) is coplanar with the upper groove wall of the first groove (22).

6. The double-ended retractor according to claim 1, characterized in that: The second groove (32) is an arc-shaped groove.

Images