Drag hook for neck shaping

Abstract

The drag hook comprises an arc-shaped hook part, a connecting part is arranged at the rear end of the hook part, the connecting part is provided with a handle forming a sickle shape with the hook part, a light guide channel and a catheter channel which extend from the rear end to the front end are formed in the hook part, a light guide pipe is arranged in the light guide channel in a sealed mode, and the light guide pipe is connected with the hook part. A catheter for medicine injection is arranged in the catheter channel in a sealed mode, and a one-way valve structure communicated from inside to outside is arranged at the front end of the catheter. The device comprises an arc-shaped hook part, a connecting part is arranged at the rear end of the hook part, a sickle-shaped handle is assembled on the connecting part, an operator holds the handle and enables the hook part to stretch into the subcutaneous part through a neck skin incision of a patient, the arc-shaped hook part can be matched with the neck radian of the patient more easily, and the cervical latissimus deep layer and the fascia layer of the patient can be conveniently and effectively lifted.

Description

Technical Field

[0001] This invention relates to a pull hook, and more particularly to a pull hook for neck shaping, belonging to the field of medical device technology. Background Technology

[0002] Neck contouring surgery refers to surgically addressing issues such as "tire neck," sagging skin, double chin, and blurred jawline to improve neck appearance, resulting in a firmer, more youthful, and aesthetically pleasing neck. This procedure involves incising the neck skin and manipulating the deep platysma muscle and fascia. Currently, traditional instruments like right-angle retractors are commonly used in neck contouring surgery. These retractors are inserted subcutaneously through the neck incision to retract the deep platysma muscle and fascia. However, using right-angle retractors has several drawbacks: firstly, the right angle shape of the retractor does not match the natural curvature of the neck, and forced traction can easily lead to tissue damage, and the platysma muscle is not adequately exposed; secondly, deep illumination during surgery relies on external shadowless lamps, which are easily obstructed by the surgeon's head and hands, resulting in unclear vision and affecting the accuracy and safety of the procedure. Therefore, there is an urgent need for a specialized retractor that provides deep illumination and is compatible with the neck's anatomical structure. Summary of the Invention

[0003] The purpose of this invention is to provide a pull hook for neck shaping to solve the problem that pull hooks for neck shaping in the prior art do not match the curvature of the neck.

[0004] To solve the above problems, the pull hook for neck shaping involved in this invention adopts the following technical solution: A pull hook for neck shaping includes an arc-shaped hook part, a connecting part is provided at the rear end of the hook part, the connecting part is equipped with a handle that forms a sickle shape with the hook part, a light guide channel and a conduit channel extending from the rear end to the front end are opened in the hook part, a light guide tube is sealed in the light guide channel, a conduit for drug injection is sealed in the conduit channel, and a one-way valve structure that conducts from the inside to the outside is provided at the front end of the conduit.

[0005] The rear end of the light guide channel has a large cross-section, and an extended light guide tube is also provided at the rear end of the light guide channel. A side opening communicating with the rear end of the light guide channel is also provided on the hook part, and the end of the extended light guide tube extends out from the side opening.

[0006] The hook portion is further provided with an extended light guide blind hole at the rear. A side opening communicating with the extended light guide blind hole is also provided on the hook portion. An extended light guide tube is inserted into the extended light guide blind hole, and the end of the extended light guide tube extends out from the side opening.

[0007] The hook portion is flat.

[0008] The length of the hook is 100-140mm.

[0009] The central angle corresponding to the arc of the hook is 120-140 degrees.

[0010] The width of the hook is 10-14mm, and the thickness of the hook is 1.5-2.5mm.

[0011] The distance between the side opening and the rear end of the hook is 50-60mm.

[0012] The connecting part is assembled with the threaded hole at the end of the handle via its external thread.

[0013] The one-way valve structure includes an elastic septum plate disposed at the end of the conduit. The septum plate has a Y-shaped or cross-shaped opening and is a convex spherical shape.

[0014] The present invention includes an arc-shaped hook, with a connecting part at the rear end of the hook. The connecting part is equipped with a handle that forms a sickle shape with the hook. The operator holds the handle and inserts the hook into the subcutaneous tissue through an incision in the patient's neck skin. The arc-shaped hook is easier to match the curvature of the patient's neck, which facilitates effective lifting of the deep platysma muscle and fascia layer of the patient.

[0015] The hook portion of this invention has a light guide channel and a conduit channel extending from the rear end to the front end, and a light guide tube is sealed within the light guide channel. The light guide tube illuminates the inside of the incision, making it easier for the operator to see deep within the incision.

[0016] The hook portion of this invention has a light guide channel and a conduit channel extending from the rear end to the front end. A drug-injection conduit is sealed within the conduit channel, and the front end of the conduit has a one-way valve structure that flows from the inside out. The one-way valve structure prevents blood and other substances from entering the conduit from the incision and allows medication to enter the incision from the conduit. Anti-inflammatory medication can be delivered deep into the incision through the conduit, preventing incision infection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below: Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the catheter in the diagram; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 for Figure 1 A schematic diagram of the hook part in the middle; Figure 5This is a schematic diagram of the hook part in Example 2.

[0018] The diagram is labeled as follows: 1. Hook, 2. Connecting part, 3. Handle, 4. Light guide channel, 5. Conduit channel, 6. Light guide tube, 7. Conduit, 8. One-way valve structure, 9. Extended light guide tube, 10. Side opening, 11. Sealing plate, 12. Extended light guide blind hole. Detailed Implementation

[0019] To make the technical objectives, technical solutions, and beneficial effects of the present invention clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention; that is, the described embodiments are merely some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Example 1 A specific embodiment of the pull hook for neck shaping involved in this invention is as follows: Figures 1-4 As shown, it has an arc-shaped hook 1 for extending subcutaneously through a neck incision to pull the deep platysma muscle and fascia layer. A connecting part 2 is located at the rear end of the hook 1 and is welded to the hook 1. The connecting part 2 is fitted with a sickle-shaped handle 3, which is used by the operator to grip and manipulate the hook 1 for surgery. A light guide channel 4 and a catheter channel 5 extend from the rear end to the front end of the hook 1. A light guide tube 6 is sealed within the light guide channel 4 and extends into the incision along with the hook 1. The light guide tube 6 illuminates the surgical field to achieve shadowless illumination, allowing the operator to clearly see the inside of the incision. A drug delivery catheter 7 is sealed within the catheter channel 5. The front end of the catheter 7 has a one-way valve structure 8 that flows from the inside out, allowing medication to be delivered into the incision. The "rear end" refers to the end of the hook 1 where the connecting part 2 is located, and the "front end" refers to the end of the hook 1 furthest from the connecting part 2.

[0021] During use, an incision is first made on the patient's neck skin. The operator then holds handle 3 and manipulates hook 1 through handle 3, inserting hook 1 into the incision. The operator then uses the illumination of light guide tube 6 to observe the inside of the incision, locating the deep platysma muscle and fascia layer to be pulled or lifted. Hook 1 is then pulled upwards to pull or lift the deep platysma muscle and fascia layer. Simultaneously, anti-inflammatory drugs and other medications are delivered deep into the incision through catheter 7 to prevent infection.

[0022] Specifically, the rear end of the light guide channel 4 has a large cross-section, and an extended light guide tube 9 is also provided at the rear end of the light guide channel 4. A side opening 10 communicating with the rear end of the light guide channel 4 is also provided on the hook part 1, and the end of the extended light guide tube 9 extends out from the side opening 10. It can be understood that the rear end of the light guide channel 4 has a large diameter, which can simultaneously accommodate the light guide tube 6 and the extended light guide tube 9. The extended light guide tube 9 extends into the rear end of the light guide channel 4, and its end extends out of the hook part 1 through the side opening 10. The extended light guide tube 9 is used to provide illumination to the opening of the cut.

[0023] Specifically, hook 1 is flat. The flat shape makes it easier for hook 1 to be inserted into the incision and allows hook 1 to have more room to move within the incision, making it easier to pull or lift the deep platysma muscle and fascia layer through hook 1.

[0024] Specifically, the length of hook 1 is 120mm. If hook 1 is too long, it will be difficult to maneuver; if it is too short, the length of hook 1 that extends into the incision will be too short, resulting in a smaller contact area with the platysma muscle and fascia layer. This length ensures that hook 1 can be maneuvered freely while allowing it to extend into the incision at a more appropriate length, facilitating a larger range of traction or lifting of the deep platysma muscle and fascia layer.

[0025] Specifically, the central angle corresponding to the curvature of hook 1 is 130 degrees. This angle allows hook 1 to better conform to the patient's neck curve, enabling safe and effective lifting and exposure of the platysma muscle layer.

[0026] Specifically, the hook 1 has a width of 12mm and a thickness of 2.0mm, and is made of medical-grade stainless steel plate. This width facilitates the insertion of the hook 1 into the incision and allows for traction or lifting of the deep platysma muscle and fascia layer. The 2.0mm thick medical-grade steel plate makes the hook 1 structurally stable and less prone to deformation under external forces.

[0027] Specifically, the distance between the side opening 10 and the rear end of the hook 1 is 55 mm. When the hook 1 is inserted into the incision for surgery, the side opening 10 is located at the opening of the incision. This distance allows the rear end of the hook 1 to extend 55 mm outside the incision, which facilitates the operator's observation of the dynamics of the hook 1 during the operation and also facilitates the operator's manipulation of the hook 1 during the operation, thereby traction or lifting of the deep platysma muscle and fascia layer.

[0028] Specifically, the connecting part 2 is assembled with the threaded hole at the end of the handle 3 via its external thread. This makes the handle 3 and the hook part 1 detachable, allowing for easy replacement if one of them is damaged.

[0029] Specifically, the one-way valve structure 8 includes an elastic septum 11 disposed at the end of the catheter 7. The septum 11 has a cross-shaped opening and is a convex spherical shape. The convex spherical shape makes it easy to open the cross-shaped opening on the septum 11 from the inside out, but difficult to open from the outside in. The medication inside the catheter 7 can push open the cross-shaped opening from the inside of the septum 11 and enter the incision. When blood or other fluids in the incision push against the septum 11 from the outside, the cross-shaped opening will be closed, thus preventing it from entering the catheter 7.

[0030] Example 2 like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that an extended light guide blind hole 12 is also provided at the rear of the hook part 1, and a side opening 10 communicating with the extended light guide blind hole 12 is also provided on the hook part 1. An extended light guide tube 9 is inserted into the extended light guide blind hole 12, and the end of the extended light guide tube 9 extends out of the hook part 1 from the side opening 10, thereby providing illumination to the cut.

[0031] In the above embodiments, the hook is flat, which is an optimized technical solution. In other embodiments, the hook can also be other arc-shaped forms.

[0032] In the above embodiment, the length of the hook is 120mm, which is an optimized technical solution. In other embodiments, the length of the hook can also be selected from a value between 100-140mm.

[0033] In the above embodiment, the central angle corresponding to the arc of the hook is 130 degrees, which is an optimized technical solution. In other embodiments, the angle of the central angle corresponding to the arc of the hook can also be selected from a value between 120 and 140 degrees.

[0034] In the above embodiment, the width of the hook is 12mm and the thickness of the hook is 2.0mm. This is an optimized technical solution. In other embodiments, the width of the hook can also be selected from 10-14mm and the thickness of the hook can also be selected from 1.5-2.5mm.

[0035] In the above embodiment, the distance between the side opening and the rear end of the hook is 55mm, which is an optimized technical solution. In other embodiments, the distance between the side opening and the rear end of the hook can also be selected from a value between 50-60mm.

[0036] In the above embodiments, the connecting part is assembled with the threaded hole at the end of the handle through its external thread. In other embodiments, the connecting part can also be riveted to the handle by rivets.

[0037] In the above embodiments, the one-way valve structure includes an elastic septum plate disposed at the end of the conduit. The septum plate has a cross-shaped opening and the septum plate 11 is a convex spherical shape. In other embodiments, a Y-shaped opening may also be provided on the septum plate 11.

[0038] In use, the tip of this product is inserted into the body through the surgical incision. The tip is guided to the area beneath the tissue requiring traction, such as muscle, fascia, blood vessels, or nerve bundles. It directly illuminates the dark or blind areas behind the retracted tissue. The surgeon can dynamically adjust the angle and depth of the retractor as needed, and the illumination spot moves accordingly, achieving a "point-and-shoot" effect. No assistant is needed to hold a special endoscope or repeatedly adjust the independent light source; the surgeon can independently perform traction and illumination, improving surgical efficiency.

[0039] The light guide channel contains a light guide tube. The light guide tube starts from the end of the handle and extends inwards, running through the entire retractor body and finally reaching the end of the hook. A 55mm exposed light guide tube section emerges from the side wall of the hook, becoming the exposed light guide tube. The purpose of this is to refract light onto the surgical area as needed according to the surgical requirements. The distance between the end of the light source and the end of the retractor is 65mm.

[0040] Finally, it should be noted that the above embodiments are only for illustration and not for limiting the technical solutions of the present invention. Any equivalent substitutions, modifications or partial substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A pull hook for neck shaping, characterized in that, It includes an arc-shaped hook, a connecting part at the rear end of the hook, a handle forming a sickle shape with the hook, a light guide channel and a conduit channel extending from the rear end to the front end inside the hook, a light guide tube sealed inside the light guide channel, a conduit for drug injection sealed inside the conduit channel, and a one-way valve structure that flows from the inside to the outside at the front end of the conduit.

2. The pull hook for neck shaping according to claim 1, characterized in that, The rear end of the light guide channel has a large cross-section, and an extended light guide tube is also provided at the rear end of the light guide channel. A side opening communicating with the rear end of the light guide channel is also provided on the hook part, and the end of the extended light guide tube extends out from the side opening.

3. The pull hook for neck shaping according to claim 1, characterized in that, The hook portion is further provided with an extended light guide blind hole at the rear. A side opening communicating with the extended light guide blind hole is also provided on the hook portion. An extended light guide tube is inserted into the extended light guide blind hole, and the end of the extended light guide tube extends out from the side opening.

4. The pull hook for neck shaping according to claim 1, 2, or 3, characterized in that, The hook portion is flat.

5. The pull hook for neck shaping according to claim 4, characterized in that, The length of the hook is 100-140mm.

6. The pull hook for neck shaping according to claim 5, characterized in that, The central angle corresponding to the arc of the hook is 120-140 degrees.

7. The pull hook for neck shaping according to claim 6, characterized in that, The width of the hook is 10-14mm, and the thickness of the hook is 1.5-2.5mm.

8. The pull hook for neck shaping according to claim 7, characterized in that, The distance between the side opening and the rear end of the hook is 50-60mm.

9. The pull hook for neck shaping according to claim 8, characterized in that, The connecting part is assembled with the threaded hole at the end of the handle via its external thread.

10. The pull hook for neck shaping according to claim 1, characterized in that, The one-way valve structure includes an elastic septum plate disposed at the end of the conduit. The septum plate has a Y-shaped or cross-shaped opening and is a convex spherical shape.

Images