Self-fixing laparoscopic puncture sheath

Abstract

This invention proposes a self-fixing laparoscopic puncture sheath, belonging to the field of medical devices. It solves the problem of difficulty in fixing laparoscopic puncture sheaths. It includes an elastic sleeve and an elastic pad. The elastic sleeve is located at the front end of the puncture sheath, and the elastic pad is spaced above the elastic sleeve. The elastic pad is slidably connected to the puncture sheath. The elastic sleeve has a conical skirt-like structure, and the elastic pad has a flat structure. The elastic sleeve is located on the muscle tissue side of the incision, and the elastic pad is located on the skin side of the incision. It is mainly used for fixing laparoscopic puncture sheaths.

Description

Technical Field

[0001] This utility model belongs to the field of medical equipment, and in particular relates to a self-fixing laparoscopic puncture sheath. Background Technology

[0002] Currently, the retroperitoneal (or preperitoneal) approach in urology requires an incision to enter the retroperitoneal (or preperitoneal) space, followed by balloon dilation of the space. The appropriate laparoscopic puncture sheath is then inserted, and finally, the incision is sutured to narrow the incision, allowing for the insertion of the last laparoscopic puncture sheath, which is then sutured in place. Because the incision for balloon dilation is usually much longer than the diameter of the laparoscopic puncture sheath, failing to suture the narrowed incision could lead to air leakage and difficulty in securing the laparoscopic puncture sheath. Therefore, suturing the balloon-dilated incision is necessary. However, this method increases the time required to fix the puncture sheath, and some sutures may leak air due to incomplete suturing, affecting the pneumoperitoneum pressure and thus the surgical field of view. Utility Model Content

[0003] In view of this, the present invention aims to propose a self-fixing laparoscopic puncture sheath to solve the problem of difficulty in fixing existing laparoscopic puncture sheaths.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a self-fixing laparoscopic puncture sheath, comprising an elastic sleeve and an elastic pad, wherein the elastic sleeve is disposed at the front end of the puncture sheath, and the elastic pad is spaced above the elastic sleeve, the elastic pad being slidably connected to the puncture sheath, the elastic sleeve having a conical skirt-like structure, the elastic pad having a flat structure, the elastic sleeve being located on the muscle tissue side of the incision, and the elastic pad being located on the skin side of the incision.

[0005] Furthermore, the elastic pad is provided with a buckle, and the puncture sheath is provided with a locking slot, with the buckle engaging with the locking slot.

[0006] Furthermore, the hardness of the elastic pad is greater than that of the elastic sleeve.

[0007] Furthermore, the elasticity of the elastic sleeve is greater than that of the elastic pad.

[0008] Furthermore, the hardness of the bottom outer ring portion of the elastic sleeve is greater than the hardness of the skirt-shaped conical surface portion.

[0009] Furthermore, both the elastic sleeve and the elastic pad are made of rubber or plastic.

[0010] Furthermore, the elastic pad is circular or elliptical.

[0011] Compared with existing technologies, the advantages of this invention are as follows: After inserting the last puncture sheath, the elastic sleeve can seal the muscle tissue side of the incision, while the movable elastic pad presses against the skin side of the incision. This method allows for quick fixation of the puncture sheath to the incision, preventing air leakage. The entire process is simple and convenient, and can be repeated after specimen collection from the incision, significantly reducing the time required to fix the puncture sheath. This invention has a simple structure and ingenious usage, effectively solving the problem of difficult fixation of laparoscopic puncture sheaths without excessively increasing the complexity of the puncture sheath. Attached Figure Description

[0012] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0013] Figure 1 This is a schematic diagram of the main structure of a self-fixing laparoscopic puncture sheath according to the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of a self-fixing laparoscopic puncture sheath according to the present invention.

[0015] Figure 3 This is a schematic diagram showing the usage state of a self-fixing laparoscopic puncture sheath as described in this utility model.

[0016] In the picture:

[0017] 1-Puncture sheath, 2-Elastic sleeve, 3-Elastic pad, 4-Incision. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0019] See Figure 1-2This embodiment describes a self-fixing laparoscopic puncture sheath, comprising an elastic sleeve 2 and an elastic pad 3. The elastic sleeve 2 is disposed at the front end of the puncture sheath 1, and the elastic pad 3 is spaced above the elastic sleeve 2. The elastic pad 3 is slidably connected to the puncture sheath 1, and the elastic pad 3 can be fixed in position to the puncture sheath 1 by elastic connection or mechanical connection. The elastic sleeve 2 has a conical skirt-like structure and is a deformable and elastic structure with a certain tension, which can effectively seal the incision 4 and prevent air leakage. The elastic pad 3 has a flat structure and needs to provide a certain support force for the incision 4. The elastic sleeve 2 is located on the muscle tissue side of the incision 4, and the elastic pad 3 is located on the skin side of the incision 4. The upper and lower sides of the incision 4 are sealed by the elastic pad 3 and the elastic sleeve 2, respectively.

[0020] In this embodiment, the elastic pad 3 is provided with a buckle, and the puncture sheath 1 is provided with a locking slot. The buckle and the locking slot engage with each other. The engagement of the buckle and the locking slot can fix the position of the elastic pad 3 and the puncture sheath 1. Releasing the buckle allows the elastic pad 3 to move up and down.

[0021] In this embodiment, the hardness of the elastic pad 3 is greater than that of the elastic sleeve 2. The greater hardness of the elastic pad 3 is to provide sufficient support and prevent it from slipping out and sinking into the cut 4 due to insufficient hardness.

[0022] In this embodiment, the elastic sleeve 2 has a greater elasticity than the elastic pad 3. The greater elasticity of the elastic sleeve 2 is to provide sufficient tension, thereby better sealing the cut 4 and preventing air leakage. The elasticity of the elastic sleeve 2 is similar to that of a balloon.

[0023] In this embodiment, the hardness of the bottom outer ring portion of the elastic sleeve 2 is greater than the hardness of the skirt-shaped conical surface portion, and the hardness of the outer edge portion of the elastic sleeve 2 is even greater, which can provide better support for the skirt-shaped conical surface portion of the elastic sleeve 2.

[0024] Preferably, both the elastic sleeve 2 and the elastic pad 3 are made of rubber or plastic. The elastic pad 3 is circular or elliptical.

[0025] The usage process of the above-described embodiments is as follows: Figure 3 As shown, the details are as follows:

[0026] When inserting the last puncture sheath 1, first flatten the elastic sleeve 2 to make it fold up and fit snugly against the puncture sheath 1. Then, insert the tip of the puncture sheath 1 into the incision 4, so that the elastic sleeve 2 is positioned on the muscle tissue side of the incision 4. The elastic sleeve 2 will automatically return to its round shape under the action of elasticity. Then, pull up the puncture sheath 1, and the elastic sleeve 2 will become conical and close the incision 4. Finally, move the elastic pad 3 towards the incision 4 so that the elastic pad 3 presses against the skin side of the incision 4. This fixes the puncture sheath 1 to the incision 4 and prevents air leakage. The whole operation is simple and convenient, and can be repeated after the specimen is taken from the incision 4, greatly reducing the time spent fixing the puncture sheath 1.

[0027] The specific embodiments of this utility model disclosed above are merely illustrative of the present utility model. These specific embodiments do not exhaustively describe all details, nor do they limit the utility model to only the described embodiments. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A self-fixing laparoscopic puncture sheath, characterized in that: It includes an elastic sleeve (2) and an elastic pad (3). The elastic sleeve (2) is disposed at the front end of the puncture sheath (1). The elastic pad (3) is disposed at intervals above the elastic sleeve (2). The elastic pad (3) is slidably connected to the puncture sheath (1). The elastic sleeve (2) has a conical skirt-shaped structure. The elastic pad (3) has a flat structure. The elastic sleeve (2) is located on the muscle tissue side of the incision (4). The elastic pad (3) is located on the skin side of the incision (4).

2. The self-fixing laparoscopic puncture sheath according to claim 1, characterized in that: The elastic pad (3) is provided with a buckle, and the puncture sheath (1) is provided with a slot, and the buckle and the slot engage with each other.

3. The self-fixing laparoscopic puncture sheath according to claim 1, characterized in that: The hardness of the elastic pad (3) is greater than that of the elastic sleeve (2).

4. The self-fixing laparoscopic puncture sheath according to claim 1, characterized in that: The elastic sleeve (2) has a greater elasticity than the elastic pad (3).

5. A self-fixing laparoscopic puncture sheath according to claim 1, characterized in that: The hardness of the bottom outer ring portion of the elastic sleeve (2) is greater than the hardness of the skirt-shaped conical surface portion.

6. The self-fixing laparoscopic puncture sheath according to claim 1, characterized in that: Both the elastic sleeve (2) and the elastic pad (3) are made of rubber or plastic.

7. A self-fixing laparoscopic puncture sheath according to claim 1, characterized in that: The elastic pad (3) is circular or elliptical.

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