Skin retractor device

Abstract

The utility model relates to a skin retractor device, and belongs to the technical field of medical instruments. The device comprises a handheld part (1), one end of the handheld part (1) is provided with a drag hook part (2), the drag hook part (2) comprises a supporting plate (21), the lower side of the supporting plate (21) is provided with a group of drag hooks (22) which are integrally distributed in an arc (3) shape, the openings of the arc (3) distributed by the group of drag hooks (22) are arranged outwards, and the hook head of each drag hook (22) is arranged towards the peripheral side. Due to the fact that the whole drag hook is arranged in the arc shape, the drag hook can well make contact with skin tissue in the skin retraction process and is consistent with a skin incision in shape after traction, the skin tissue at the traction action position is evenly stressed, the tissue at the traction action position is not prone to being damaged, in general, the device is convenient to use, and damage to the skin tissue at the incision position can be reduced.

Description

Technical Field

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

[0002] Retractors are commonly used in surgical operations to assist in exposing the surgical field, such as pulling tissue to complete the operation. Retractors of different shapes and characteristics are required in different surgical operations to achieve satisfactory results. For example, in laparoscopic thyroid surgery, a small incision needs to be made on the skin, and then the subcutaneous tissue is separated. When separating the subcutaneous tissue, the separation of the subcutaneous tissue at both ends of the incision is difficult. The traditional method uses conventional straight vascular clamps or Alice clamps for pulling, which will cause damage to the soft tissue. At the same time, pulling the skin is inconvenient, the lateral space of the tissue at the end of the incision is not exposed enough, and the space far below the skin cannot be separated at this point, resulting in low efficiency.

[0003] In the prior art, for example, a skin stealth separation hook assembly for surface surgery with publication number CN103393441A includes a first hook and a second hook, the hook teeth of the first hook and the second hook are in the shape of sharp claws, and the first hook and the second hook are used together during surgery. This sharp claw-shaped structure is conducive to the hook not easily slipping off the skin edge when hooking the skin edge for pulling, so that a pulling force along the tangential direction can be applied to the skin edge to stretch the skin, which can reduce the risk of accidental injury to the skin during surgery. In particular, good tissue resistance to traction is conducive to the electric knife cutting in layers to reduce the risk of accidental injury. At the same time, the hook can be extended to the vicinity of the operation area to pull the tissue, which can provide a more satisfactory operation surface to complete the operation smoothly.

[0004] Although the retractor can effectively pull the skin apart to reduce damage, this retractor structure still has some shortcomings: since the retractors are all located in the same straight line, when the skin is pulled, the retractors located at the two ends exert greater pressure, which can easily damage the skin; in addition, the hook teeth with sharp claws can also easily cause sharp damage to the skin. Utility Model Content

[0005] In order to solve the deficiencies of the prior art, the utility model provides a skin retractor device.

[0006] It adopts the following technical solutions:

[0007] A skin retractor device comprises a hand-held portion, one end of which is provided with a retractor portion, wherein the retractor portion comprises a support plate, a group of retractors distributed in an arc shape as a whole are provided on the lower side of the support plate, the arc openings of the group of retractors are arranged outwardly, and the hook head of each retractor is arranged toward the outer peripheral side.

[0008] Furthermore, the retractor comprises a first retractor and a second retractor, the first retractor is symmetrically arranged with respect to the axis of the hand-held part, and the second retractor is located on the axis of the hand-held part.

[0009] Furthermore, the support plate is a U-shaped plate with an opening on one side, and the opening of the support plate is arranged axially outwardly along the handle portion.

[0010] Furthermore, the first and second retractor hooks are both arc hooks with rounded corners, and the arc hooks have blunt ends.

[0011] Furthermore, the draw hook is integrally connected to the support plate with a smooth transition.

[0012] Furthermore, the hand-held portion includes a handle portion and a coaxially integrally connected support rod, and the support rod is connected to the hook portion.

[0013] Furthermore, the hand-held portion and the hook portion are detachably connected by thread through a threaded hole and a screw rod.

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

[0015] By arranging the retractor in an arc shape, the retractor can be well in contact with the skin tissue during the skin retraction process, which is consistent with the shape of the skin incision after the retraction. The skin tissue at the retraction site is evenly stressed and is not easily damaged.

[0016] By setting the support plate as a U-shaped plate with one side open, observation can be made through the opening during the pulling process;

[0017] By setting the arc hook with rounded corners, the rounded blunt end of the hook is not easy to damage the skin and other tissues during the pulling process;

[0018] By providing a detachable threaded structure, retractor parts of different sizes and models can be replaced according to surgical requirements, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a skin retractor device according to an embodiment of the utility model;

[0020] Figure 2 yes Figure 1 The structural diagram of the middle A direction;

[0021] Figure 3 It is a schematic diagram of the longitudinal cross-section structure of a skin retractor device of the utility model;

[0022] Figure 4 It is a schematic diagram of the connection structure between the support rod and the hook part in the embodiment of the utility model.

[0023] Explanation of the reference numerals: 1. hand-held portion; 11. handle portion; 12. support rod; 13. threaded hole; 2. hook portion; 21. support plate; 22. hook; 221. first hook; 222. second hook; 23. screw rod; 3. arc. DETAILED DESCRIPTION

[0024] In order to make the present invention more clearly understood, a skin retractor device 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.

[0025] like Figures 1 to 3 As shown, a skin hook device comprises a handheld part 1, the handheld part 1 has a handle part 11 and a support rod 12 connected in a coaxial integral manner, and a hook part 2 is connected to the end of the support rod 12. The hook part 2 comprises a support plate 21, and the support plate 21 is a plate body with an opening on one side, preferably a U-shaped plate. The central axis of the support plate 21 coincides with the axis of the handheld part 1, and the support plate 21 is opened outward. A group of hooks 22 are arranged on the support plate 21. Among them, the hooks 22 include a first hook 221 and a second hook 222, the first hooks 221 are symmetrically arranged with respect to the axis of the handheld part 1, the number of the first hooks 221 on each side is three, the second hooks 222 are located on the axis of the handheld part, the first hooks 221 are distributed along the length direction of the handheld part 1, and the second hooks 222 are located at one end of the length direction of the group of first hooks 221 and close to the handheld part 1, and the group of hooks 22 are distributed in the shape of an arc 3 as a whole. Since the support plate 21 in this embodiment is a U-shaped plate, the contour line of the U-shaped plate can be adapted to the line of the arc 3, that is, the first hook 221 is located on both sides of the support plate 21, the second hook 222 is located on the arc bottom edge of the support plate 21, and the first and second hooks are both located on the lower side of the support plate 21, and the hook heads are both arranged toward the outer peripheral side of the support plate 21, from Figure 1 From the diagram, the first hook 221 faces outwards and in the width direction of the device, and the second hook 222 faces in the direction of the handheld portion 1 .

[0026] from Figure 3 It can be seen that the arc 3 where the first and second retractors are located is a parabola, the hook head of the second retractor 222 is located at the vertex of the parabola, and the first retractor 221 is located on the lines on both sides of the vertex. Of course, the arc 3 can also be a circular arc, a curve similar to a sharp angle, etc., so that each retractor is in uniform contact with the pulling part during the pulling process.

[0027] Preferably, the first and second retractors are arc hooks with rounded corners and blunt ends. They can be formed by bending slats, for example, each of the first and second retractors has a semicircular slat with a width of 3 mm and a thickness of 2 mm, and the larger side of the retractor is used to contact the skin incision. In this embodiment, the first and second retractors are connected to the support plate 21 in an integrated smooth transition. The retractor portion 2 can be made of medical stainless steel, and the first and second retractors are bent and formed by a stamping process. Of course, the retractor portion 2 can also be formed by integral injection molding of hard medical-grade engineering plastics or other methods.

[0028] In some embodiments, considering the applicability of the present hook device, such as Figure 4 As shown, a threaded hole 13 may be provided at the end of the support rod 12, and a screw 23 is provided on the support plate 21 of the hook portion 2. The threaded hole 13 and the screw 23 form a detachable fit, and the hook portion 2 of different sizes can be replaced according to different surgical needs. Of course, the specific screw hole and the main body to which the screw is attached are interchangeable. In addition, the support rod 12 can also be a telescopic rod.

[0029] When the device is in use, the subcutaneous tissue at the skin incision is first preliminarily separated with a tool such as a stripping forceps to provide space for the hook portion 2 of the device to be inserted. Then, the device is manually held and the hook portion 2 is inserted into one side of the skin incision so that the hook 22 is stuck and fits the skin tissue at the incision. Then, the handle portion 11 is gripped and the device is pulled along the axis of the handle portion 11 to pull the incision skin apart. The same method is used to pull the incision skin apart on the other side of the skin incision.

[0030] During this process, since the retractor 22 is arranged in an arc shape as a whole, each retractor 22 can be in good contact with the skin tissue during the skin retraction process, and the overall distribution shape of the retractor 22 is consistent with the shape of the skin incision after traction, so that the skin tissue at the traction point is evenly stressed and not easily damaged. At the same time, during the traction process, the rounded blunt end of the retractor 22 is not easy to damage the skin and other tissues.

[0031] 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 skin retractor device, comprising a hand-held portion (1), one end of the hand-held portion (1) being provided with a retractor portion (2), characterized in that: The hook portion (2) comprises a support plate (21), and a group of hooks (22) distributed in the shape of an arc (3) are provided on the lower side of the support plate (21), the arc (3) on which the group of hooks (22) are distributed has an opening facing outwards, and the hook head of each hook (22) is arranged toward the outer peripheral side.

2. A skin retractor device according to claim 1, characterized in that: The pull hook (22) comprises a first pull hook (221) and a second pull hook (222); the first pull hook (221) is symmetrically arranged about the axis of the hand-held portion (1); and the second pull hook (222) is located on the axis of the hand-held portion (1).

3. A skin retractor device according to claim 2, characterized in that: The support plate (21) is a U-shaped plate with an opening on one side, and the opening of the support plate (21) is arranged axially outwardly along the handheld portion (1).

4. A skin retractor device according to claim 3, characterized in that: The first and second retractor hooks are both arc hooks with rounded corners and blunt ends.

5. A skin retractor device according to claim 1, characterized in that: The draw hook (22) is integrally connected to the support plate (21) in a smooth transition manner.

6. A skin retractor device according to claim 1, characterized in that: The handheld portion (1) comprises a handle portion (11) and a coaxially integrally connected support rod (12), and the support rod (12) is connected to the hook portion (2).

7. A skin retractor device according to claim 1, characterized in that: The hand-held portion (1) and the hook portion (2) are detachably connected by thread through a threaded hole (13) and a screw rod (23).

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