Adjustable laparoscopic surgery skin retraction device

Abstract

The application discloses an adjustable skin pulling device for laparoscopic surgery and relates to the technical field of medical auxiliary devices. The device comprises a skin-pasting main body, a non-woven fabric layer and a strong adhesive layer. The strong adhesive layer is pasted to the lower surface of the non-woven fabric layer. The non-woven fabric layer and the strong adhesive layer are both provided with an omphalos hole, a ring-shaped incision hole and a longitudinal incision hole. A pulling line is connected to the strong adhesive layer. The end of the pulling line away from the strong adhesive layer is connected to a pulling ring. The device can realize skin pulling without suture, puncture or clamping during surgery, avoid postoperative complications such as scarring and skin damage bleeding, and reduce surgical trauma.

Description

Technical Field

[0001] This invention relates to the field of medical assistive device technology, and in particular to an adjustable skin traction device for laparoscopic surgery. Background Technology

[0002] With the development of minimally invasive surgical techniques, laparoscopic surgery has become a widely used surgical method in clinical surgery due to its advantages such as less trauma, faster recovery, and better aesthetics. The key to the success of laparoscopic surgery lies in the establishment of the first puncture port, which directly affects the safety and efficiency of subsequent surgical access. Currently, clinicians often use the following methods to pull the abdominal skin and subcutaneous tissue when establishing the first puncture port: One common method is to suture the skin and part of the subcutaneous tissue on both sides of the incision with silk sutures, then use curved forceps to clamp the silk sutures, wrap them around several times, and pull upwards. The sutures are then removed after the puncture is completed. Although this method provides a certain pulling force, it requires suturing the skin, which is an invasive procedure, easily leaving suture scars postoperatively, and the process is cumbersome and increases surgical time. Another method is to clamp the abdominal wall tissue with two large towel forceps, pull upwards, and then perform the puncture. Although this method is relatively simple to operate, the clamping force of the towel clamp on the skin and subcutaneous tissue is concentrated, which can easily cause local skin damage, bruising or bleeding, and the clamping site often requires an additional incision, which affects the appearance.

[0003] In addition, in clinical practice, some surgeons and assistants work together, using towel clamps to clamp the skin and subcutaneous tissue on both sides of the umbilicus, and then manually pull the tissue to perform the puncture. This method requires a high degree of cooperation from the assistant, and slippage or instability can easily occur during the pulling process, affecting the accuracy and safety of the puncture. To address these issues, some improvements have been made, such as a skin retractor for assisting in establishing the first puncture site in laparoscopic surgery (patent number: 201721712010.3). This retractor uses a hook structure to pull the skin, but it still requires puncturing the skin or hooking the tissue, which is an invasive procedure. Improper operation may still lead to complications such as skin damage and bleeding.

[0004] In summary, the existing skin traction tools used for establishing the first puncture in laparoscopic surgery generally have the following shortcomings: they require invasive procedures such as suturing, puncturing, or clamping the skin, which can easily leave scars after surgery; the instruments have poor stability during the traction process and are prone to slippage, affecting the success rate of puncture; and they cannot flexibly adjust the traction force and angle according to the patient's body shape, skin tension, and surgical needs, thus limiting their applicability. Summary of the Invention

[0005] The main objective of this invention is to provide an adjustable skin traction device for laparoscopic surgery, which can effectively solve the problems of existing skin traction tools that require invasive operations such as suturing, puncturing or clamping the skin, resulting in postoperative scarring; poor stability and easy slippage during the lifting process, affecting the success rate of puncture; and the inability to flexibly adjust the traction force and angle according to the patient's body shape, skin tension and surgical needs, thus limiting applicability.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An adjustable laparoscopic surgical skin traction device includes an adhesive body that adheres to the skin. The adhesive body comprises a non-woven fabric layer and a strong adhesive layer. The strong adhesive layer is adhered to the lower surface of the non-woven fabric layer. Both the non-woven fabric layer and the strong adhesive layer have vertically penetrating umbilicus, an annular incision hole, and a longitudinal incision hole. A lifting wire is connected to the strong adhesive layer, and a lifting ring is connected to the end of the lifting wire away from the strong adhesive layer. By pre-setting the umbilicus, annular incision hole, and longitudinal incision hole on the adhesive body, the surgical puncture site can be precisely matched, avoiding secondary adjustments during surgery and improving operational convenience. The cooperation of the lifting wire and the lifting ring disperses the upward lifting force into a traction force along the skin surface, effectively reducing local stress concentration and lowering the risk of skin damage.

[0007] Preferably, a release paper is adhered to the lower surface of the strong adhesive layer, and the release paper covers the lower surface of the strong adhesive layer. The release paper keeps the strong adhesive layer clean and sticky before use, ensuring a tight fit with the skin during adhesion and improving the reliability of the fixation.

[0008] Preferably, an adhesive strip is fixedly connected to the edge of the strong adhesive layer, and the adhesive strip is fixedly connected to the upper surface of the strong adhesive layer, with the free end of the adhesive strip extending to the outer side of the nonwoven fabric layer. By pulling the adhesive strip, the strong adhesive layer can be easily separated from the skin, avoiding pulling pain or damage to the skin during removal and improving safety.

[0009] Preferably, there are multiple lifting lines distributed in a radial pattern. One end of each lifting line is embedded or fixed inside or on the upper surface of the strong adhesive layer, and the other ends of the multiple lifting lines converge and are fixedly connected to the lifting ring. The radially distributed lifting lines can evenly transmit the lifting force throughout the entire strong adhesive layer, preventing excessive force at a single point from causing the adhesive to curl or detach, thus enhancing lifting stability.

[0010] Preferably, the umbilicus is located at the axis between the nonwoven fabric layer and the strong adhesive layer, and the plurality of annular incision holes and the plurality of longitudinal incision holes are evenly distributed on both sides of the umbilicus. This layout allows the device to be adapted to both annular and longitudinal incision surgical approaches, expanding its clinical applicability and reducing the frequency of intraoperative instrument changes.

[0011] Preferably, the annular incision hole is an arc-shaped hole or a waist-shaped hole extending circumferentially, and the longitudinal incision hole is an elongated hole extending radially. The arc-shaped hole or waist-shaped hole facilitates arc-shaped incisions around the umbilicus, while the elongated hole is suitable for longitudinal abdominal incisions. The combination of the two can accommodate multiple puncture paths and improve surgical flexibility.

[0012] Preferably, the strong adhesive layer is made of polyurethane material. Polyurethane material has both good adhesion and breathability, and can adhere to the skin for a long time without easily causing allergies or discomfort, ensuring the durability of the adhesion during the procedure.

[0013] Preferably, the nonwoven fabric layer, the strong adhesive layer, the lifting ring, the lifting line, and the de-adhesive tape are integrally molded. This integral molding structure prevents relative displacement or detachment of the components during use, improving the overall reliability and operational consistency.

[0014] Preferably, the lifting ring is a flexible ring structure woven from multiple fibers. The flexible ring structure facilitates the hooking of instruments during surgery or the lifting by hand, while reducing wear on the operating instruments and lowering the risk of accidental pressure caused by the rigid ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention provides an adjustable laparoscopic surgical skin traction device. By setting an adhesive body that adheres to the skin, and pre-setting an umbilicus, an annular incision hole, and a longitudinal incision hole on the adhesive body, skin traction can be completed during surgery without invasive operations such as suturing, puncture, or clamping of the skin. This avoids postoperative complications such as scarring and skin damage bleeding, and reduces surgical trauma.

[0016] 2. This invention provides an adjustable laparoscopic surgical skin traction device, which uses multiple radially distributed lifting lines to evenly distribute the tension on the lifting ring to the entire strong adhesive layer, avoiding excessive force at a single point that could cause the adhesive to lift or fall off. At the same time, the lifting ring can flexibly adjust the traction angle and force, effectively improving the traction stability and puncture safety during the operation.

[0017] 3. This invention provides an adjustable laparoscopic surgical skin traction device. By integrating the umbilicus, annular incision hole, and longitudinal incision hole on the adhesive body and optimizing their distribution and shape, the same device can be used for multiple surgical approaches such as periumbilical arc incision and abdominal longitudinal incision, reducing the frequency of instrument changes during surgery and expanding the scope of clinical application. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic diagram of the lifting ring and lifting line structure of the present invention; Figure 3 This is a schematic diagram of the release paper structure of the present invention; Figure 4 This is a schematic diagram of the nonwoven fabric layer structure of the present invention.

[0019] In the diagram: 1. Non-woven fabric layer; 11. Lifting ring; 12. Umbilical opening; 14. Circular incision hole; 13. Longitudinal incision hole; 15. Adhesive strip; 2. Strong adhesive layer; 21. Lifting line; 22. Release paper. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] An adjustable laparoscopic surgical skin traction device includes an adhesive body that adheres to the skin. The adhesive body includes a non-woven fabric layer 1 and a strong adhesive layer 2. The strong adhesive layer 2 is adhered to the lower surface of the non-woven fabric layer 1. Both the non-woven fabric layer 1 and the strong adhesive layer 2 have a vertically penetrating umbilical hole 12, an annular incision hole 14, and a longitudinal incision hole 13. A lifting wire 21 is connected to the strong adhesive layer 2, and a lifting ring 11 is connected to the end of the lifting wire 21 away from the strong adhesive layer 2.

[0022] Specifically, the nonwoven layer 1 is made of medical-grade breathable nonwoven fabric, which has flexibility and tensile strength; the strong adhesive layer 2 is made of medical polyurethane gel material, and the continuous adhesion time is not less than 24 hours; the umbilical opening 12 is used to expose the patient's umbilicus; the annular incision opening 14 is an arc-shaped opening extending circumferentially; the longitudinal incision opening 13 is an elongated opening extending radially; the annular incision opening 14 and the longitudinal incision opening 13 are distributed on both sides of the umbilical opening 12.

[0023] like Figure 1 As shown, release paper 22 is pasted on the lower surface of the strong adhesive layer 2, and the release paper 22 covers the lower surface of the strong adhesive layer 2. Adhesive strip 15 is fixedly connected to the edge of the strong adhesive layer 2 and is fixedly connected to the upper surface of the strong adhesive layer 2. The free end of adhesive strip 15 extends to the outside of the nonwoven fabric layer 1.

[0024] Specifically, the release paper 22 is a single-sided silicone-coated release paper, which is easy to completely remove before use. The adhesive tape 15 is a non-woven fabric substrate, one end of which is fixed to the upper surface of the strong adhesive layer 2 by hot pressing or ultrasonic welding, and the other end extends freely beyond the edge of the non-woven fabric layer 1, which is easy to hold with fingers.

[0025] like Figure 1 and Figure 2As shown, there are multiple lifting lines 21, which are distributed in a radiating manner. One end of each lifting line 21 is embedded or fixed inside or on the upper surface of the strong adhesive layer 2. The other ends of the multiple lifting lines 21 converge and are fixedly connected to the lifting ring 11, which is a flexible ring structure woven from multiple fibers.

[0026] Specifically, the lifting cord 21 is made of medical-grade polyester fiber braided thread with a tensile strength of not less than 50N. The lifting cord 21 is evenly distributed radially. One end of each lifting cord 21 is embedded into the strong adhesive layer 2 by hot pressing or injection molding, with an embedding depth of not less than 1 / 2 of the thickness of the strong adhesive layer 2, or it is fixed to the upper surface of the strong adhesive layer 2 by medical adhesive. The other ends of multiple lifting cords 21 converge at the same point and are fixedly connected to the lifting ring 11 by injection molding or braiding. The lifting ring 11 is a flexible ring structure woven from multiple strands of polyester fiber with a tensile strength of not less than 100N.

[0027] like Figure 2 As shown, the umbilical opening 12 is located at the axis of the nonwoven fabric layer 1 and the strong adhesive layer 2. Multiple annular incision holes 14 and multiple longitudinal incision holes 13 are evenly distributed on both sides of the umbilical opening 12. The annular incision holes 14 are arc-shaped holes or waist-shaped holes extending circumferentially, and the longitudinal incision holes 13 are elongated holes extending radially.

[0028] Specifically, the edges of both the annular incision hole 14 and the longitudinal incision hole 13 are set as non-adhesive areas, which is achieved by coating the edges of the incision holes with silicone oil or setting a non-adhesive isolation layer, to prevent the edges of the incision holes from adhering excessively to the skin during the operation and affecting the operation.

[0029] like Figures 1 to 4 As shown, the nonwoven fabric layer 1, the strong adhesive layer 2, the lifting ring 11, the lifting line 21, and the adhesive strip 15 are integrally molded structures, and the strong adhesive layer 2 is made of polyurethane material.

[0030] Specifically, the one-piece molding structure is achieved through injection molding, which involves placing the non-woven fabric layer 1 in an injection mold and injecting polyurethane material to form a strong adhesive layer 2. Simultaneously, during the molding process of the strong adhesive layer 2, one end of the lifting wire 21 is embedded therein, and the other end of the lifting wire 21 is fixed to the pre-made lifting ring 11 by heat melting or weaving. The adhesive tape 15 is integrally connected to the strong adhesive layer 2 during the molding process. This one-piece molding structure ensures that the components do not shift or detach during use.

[0031] The working principle of this adjustable laparoscopic surgical skin traction device will be explained in detail below.

[0032] like Figure 1-4As shown, when using it, first select the appropriate size of the traction device according to the patient's body type, abdominal skin tension, and different surgical methods such as laparoscopic cholecystectomy and appendectomy. If the patient's umbilicus is deeply recessed or the skin is obviously loose, a model with a larger area of ​​strong adhesive layer 2 and a denser distribution of lifting lines 21 can be preferred to enhance the adhesion and lifting uniformity. Remove the release paper 22 covering the lower surface of the strong adhesive layer 2. When pasting, the ambient temperature should be controlled between 20 and 30°C. If the patient's skin surface has oil or sweat, it should be cleaned with 75% medical alcohol swabs and dried before pasting to ensure the initial adhesion between the strong adhesive layer 2 and the skin. Place the pasted body through the strong adhesive layer 2. Layer 2 is adhered to the patient's abdominal skin. During adhesion, the umbilical opening 12 is aligned with the patient's navel, and the area around the umbilical opening 12 is gently pressed. Then, the non-woven fabric layer 1 is smoothed from the center to the edge, ensuring that there are no air bubbles or wrinkles between the strong adhesive layer 2 and the skin. In particular, the area where the lifting thread 21 is embedded should be fully adhered. According to the surgical approach requirements, the circular incision hole 14 or the longitudinal incision hole 13 is aligned with the preset circular incision position or longitudinal incision position, respectively, with the non-woven fabric layer 1 facing upwards and the strong adhesive layer 2 tightly adhered to the skin. After adhesion, the surgeon or assistant uses a hemostat, towel clamp, or needle holder to hook the lifting ring 11 and pull it vertically upwards, obliquely, or horizontally according to the direction of the puncture needle entry. The skin traction angle can be flexibly adjusted. During the procedure, the maximum lifting force on the lifting ring 11 should not exceed 50N. The lifting angle can be adjusted within the vertical range of 0° to 45°. During adjustment, the lifting thread 21 should be kept taut to avoid the edge of the strong adhesion layer 2 lifting due to instantaneous impact. The lifting ring 11 drives the lifting thread 21, and the multiple lifting threads 21 distributed in a radiating pattern evenly distribute the traction force throughout the strong adhesion layer 2, avoiding excessive force at a single point that could cause the adhesive to lift or fall off. The surgeon can gradually adjust the skin tension by controlling the lifting height and force of the lifting ring 11 to adapt to the skin tension requirements of different puncture paths. If the surgery uses the periumbilical approach... With an arc-shaped incision, the surgeon can cut the skin and subcutaneous tissue along the circular incision hole 14. The shape of the hole matches the arc-shaped incision path, facilitating instrument entry. If a longitudinal abdominal incision is used, the operation can be performed along the longitudinal incision hole 13. The positional relationship between each incision hole and the umbilicus 12 is fixed, which can assist in positioning during the operation and reduce repeated adjustments. After the operation, one hand gently presses the skin around the device, and the other hand holds the free end of the adhesive tape 15 and slowly pulls it horizontally with the skin surface to gradually separate the strong adhesive layer 2 from the skin. If it is found that the local adhesion is too tight, the edge of the adhesive can be moistened with medical alcohol or paraffin oil to reduce the adhesion before tearing it off to avoid mechanical damage to the skin. Remove the entire device.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable laparoscopic surgical skin traction device, comprising an adhesive body that adheres to the skin, characterized in that: The adhesive body includes a non-woven fabric layer (1) and a strong adhesive layer (2). The strong adhesive layer (2) is adhered to the lower surface of the non-woven fabric layer (1). Both the non-woven fabric layer (1) and the strong adhesive layer (2) are provided with an through hole (12), an annular incision hole (14) and a longitudinal incision hole (13). A lifting line (21) is connected to the strong adhesive layer (2). A lifting ring (11) is connected to one end of the lifting line (21) away from the strong adhesive layer (2).

2. The adjustable laparoscopic surgical skin traction device according to claim 1, characterized in that: Release paper (22) is pasted on the lower surface of the strong adhesive layer (2), and the release paper (22) covers the lower surface of the strong adhesive layer (2).

3. The adjustable laparoscopic surgical skin traction device according to claim 1, characterized in that: The edge of the strong adhesive layer (2) is fixedly connected with a de-adhesive tape (15), the de-adhesive tape (15) is fixedly connected to the upper surface of the strong adhesive layer (2), and the free end of the de-adhesive tape (15) extends to the outside of the nonwoven fabric layer (1).

4. The adjustable laparoscopic surgical skin traction device according to claim 1, characterized in that: The lifting lines (21) are multiple, and the multiple lifting lines (21) are distributed in a scattered manner. One end of each lifting line (21) is embedded or fixed inside or on the upper surface of the strong adhesive layer (2). The other ends of the multiple lifting lines (21) converge and are fixedly connected to the lifting ring (11).

5. The adjustable laparoscopic surgical skin traction device according to claim 1, characterized in that: The umbilicus (12) is located at the axis of the nonwoven fabric layer (1) and the strong adhesive layer (2), and the multiple annular incision holes (14) and the multiple longitudinal incision holes (13) are evenly distributed on both sides of the umbilicus (12).

6. The adjustable laparoscopic surgical skin traction device according to claim 1, characterized in that: The annular cut hole (14) is an arc-shaped hole or waist-shaped hole extending circumferentially, and the longitudinal cut hole (13) is an elongated hole extending radially.

7. The adjustable laparoscopic surgical skin traction device according to claim 1, characterized in that: The strong adhesive layer (2) is made of polyurethane material.

8. An adjustable laparoscopic surgical skin traction device according to claim 3, characterized in that: The nonwoven fabric layer (1), the strong adhesive layer (2), the lifting ring (11), the lifting line (21), and the de-adhesive tape (15) are integrally formed.

9. An adjustable laparoscopic surgical skin traction device according to claim 1, characterized in that: The lifting ring (11) is a flexible ring structure woven from multiple fibers.

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