Endoscope trocar external fixing device

By designing an external fixation device consisting of a transparent silicone base and a cylindrical sleeve, the problem of trocar dislodgement or slippage during laparoscopic surgery was solved, achieving stable fixation of the trocar, reducing air leakage and collateral damage, and improving surgical efficiency and safety.

CN223715686UActive Publication Date: 2025-12-26张胜初
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Patent Information

Application Number
CN202520213590.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2025-12-26
Estimated Expiration
2035-02-11

AI Technical Summary

Technical Problem

During laparoscopic surgery, the trocar is prone to dislodging or sliding out of the body, causing interruption of the surgical channel, increasing the difficulty and time of operation, and affecting the efficiency and safety of the surgery.

Method used

An external fixation device comprising a transparent silicone base and a cylindrical sleeve was designed. The transparent silicone base is adhered to the skin by an adhesive layer, and the inner diameter of the cylindrical sleeve matches the size of the trocar to prevent the trocar from coming out or sliding, providing a stable operating space.

Benefits of technology

It effectively fixes the trocar, reduces air leakage and local collateral damage, improves surgical efficiency and safety, and simplifies the operation process.

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Abstract

The utility model discloses an endoscope trocar external fixing device which comprises a transparent silica gel base plate, a round hole is dug in the middle of the transparent silica gel base plate in a penetrating mode, an equal-diameter cylindrical sleeve is directly connected into the round hole, a trocar matched with the round hole in inner diameter can pass through the round hole, and the bottom side face of the transparent silica gel base plate is coated with an adhesive layer. And the adhesive layer can be directly adhered and fixed with the skin. The inner diameter of the cylindrical sleeve corresponds to the size of trocar and has a certain length, so that the situation that the trocar is not firmly fixed, is easy to fall off or is too deep due to the fact that skin subcutaneous tissue is too thin can be avoided, and the situation that a trocar hole incision on the body surface is too large (air leakage and large trocar activity) or too small (the trocar implantation difficulty is increased) is avoided. Inconvenience or tissue damage around a trocar hole incision caused by insufficient implantation depth and limited surgical operation activity can be overcome in the prior art.
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Description

TECHNICAL FIELD

[0001] The utility model relates to endoscope technical field, concretely is an endoscope trocar external fixing device. BACKGROUND

[0002] Endoscopic surgery is one of the most commonly used surgical methods in the clinic, and endoscopic technology has developed to the present, a part of endoscopic surgery is through separating the tissue gap or potential body cavity to form an artificial cavity for endoscopic surgery, such as: thyroid, breast and kidney endoscopic surgery. The placement and fixation of trocar in this kind of artificial cavity are important links that affect the progress of surgery and a difficult point in surgery. Trocar is the channel for observing endoscope and surgical instrument placement and operation during endoscopic surgery. During endoscopic surgery, a trocar hole incision is first made on the body surface, then the trocar is placed through the trocar hole, and then the surgery is operated through the trocar in the patient's natural body cavity or the artificial cavity formed after separation. Among them, carbon dioxide is injected into the cavity or the cavity is suspended outside the cavity, supported inside the cavity, etc. to maintain the stability of the cavity space.

[0003] During the operation, the trocar may be out of the body, slide into the cavity, etc. due to reasons such as skin laxity, subcutaneous tissue being too thin, trocar hole being too large, endoscope and instrument being in and out, and operation range being too large, etc., which leads to interruption of the surgical channel, increases the operation difficulty of the surgeon, or the operation is interrupted, thereby leading to prolonged operation time, affecting operation efficiency, and increasing operation risk. SUMMARY

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical scheme:

[0006] An endoscopic trocar external fixing device, comprising a transparent silicone base plate, a circular hole is drilled through the middle position of the transparent silicone base plate, a cylindrical sleeve pipe with the same diameter is directly connected in the circular hole, the circular hole can pass through a sleeve pipe needle matched with its inner diameter, the bottom side of the transparent silicone base plate is coated with an adhesive layer, and the adhesive layer can be directly pasted and fixed with the skin.

[0007] As a preferred scheme of the trocar external fixation device of the utility model, the cylindrical sleeve inner diameter size matches the diameter size of the round hole.

[0008] As a preferred scheme of the trocar external fixation device of the utility model, the cylindrical sleeve inner diameter size matches the diameter size of the round hole.

[0009] As a preferred scheme of the trocar external fixation device of the utility model, the cylindrical sleeve inner diameter size matches the diameter size of the round hole.

[0010] Compared with the prior art, the utility model has the beneficial effect that the cylindrical sleeve inner diameter corresponds to the size of trocar and has a certain length, can avoid that the trocar is not fixed firmly due to the skin subcutaneous tissue being too thin, is easy to fall off or is too deep, and avoids the inconvenience or the tissue damage around the trocar hole caused by the trocar hole incision being too large (air leakage, large trocar activity) or too small (difficulty of placing the trocar increases, insufficient depth of placing the trocar, operation activity is limited).

[0011] The transparent silica gel base plate is pasted with the skin through the adhesive layer at the bottom, can effectively fix and assist the trocar fixation, reduces the slipping of the trocar to the cavity and to the outside of the cavity, simultaneously, avoids air leakage to the outside of the body through the trocar hole during the operation, the transparent base plate facilitates the observation of the skin flap around the trocar hole, reduces the occurrence of local secondary damage, and is convenient for the timely treatment of the secondary damage. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme of the utility model embodiment, the utility model will be described in detail below in combination with the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor. Wherein:

[0013] Fig. 1 It is the whole structure schematic diagram of the trocar fixing device of the utility model;

[0014] Fig. 2 It is the separation structure schematic diagram of the trocar fixing device of the utility model. DETAILED DESCRIPTION

[0015] In order to make the above purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below in combination with the drawings.

[0016] Secondly, the utility model in combination with the schematic diagram is described in detail, in the detailed description of the utility model embodiment, for the convenience of explanation, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of the utility model protection here. In addition, the three-dimensional spatial dimension of length, width and depth should be included in actual production.

[0017] In order to make the purpose, technical scheme and advantage of the utility model more clear, the embodiment of the utility model will be further described in detail below in combination with the drawings.

[0018] Figs. 1-2 The whole structure schematic diagram of one embodiment of the utility model is shown, please refer to Figs. 1-2 The trocar fixing device of the embodiment includes a transparent silica gel base plate 5, a circular hole 3 is drilled through the middle position of the transparent silica gel base plate 5, a cylindrical sleeve 4 with the same diameter is directly connected in the circular hole 3, the circular hole 3 can pass through the trocar matched with the inner diameter, the bottom side of the transparent silica gel base plate is coated with an adhesive layer, and the adhesive layer can be directly pasted and fixed with the skin. The inner diameter size of the cylindrical sleeve 4 is matched with the diameter size of the circular hole 3. The inner diameter size of the cylindrical sleeve 4 is two specifications of 10 mm and 15 mm, and the length is all 30 mm specifications. The diameter of the transparent silica gel base plate 5 is 30 mm specifications. When pasting, attention should be paid to ensure that the circular hole 3 is opposite to the trocar hole incision on the skin, and the trocar external fixing device with two different specifications of 10 mm and 15 mm is selected according to the length of the trocar hole incision.

[0019] Working principle: the trocar hole incision position is selected in the operation, and 5 mm and 10 mm incisions are made according to the operation needs, the trocar external fixing device with the appropriate specification is selected according to the size of the trocar used in the operation, the adhesive layer surface of the device is torn off the bottom surface of the anti-sticking paper, the transparent base plate is flattened, the circular hole is opposite to the trocar hole incision, the transparent base plate on the outside of the circular hole is pasted on the patient's body surface through the adhesive layer, and the trocar hole incision is exposed in the middle of the circular hole; the trocar with the appropriate size is selected and inserted through the cylindrical sleeve, and then enters the patient's subcutaneous tissue through the cylindrical sleeve, the circular hole and the trocar hole incision on the skin, separates to form an artificial cavity, and maintains a stable endoscopic operation space through the air passage on the trocar by inputting CO2 gas or suspension, so as to facilitate the next step of the operation. The trocar external fixing device is pasted and fixed on the skin through the adhesive layer at the bottom of the transparent base plate, and then the trocar is auxiliary fixed through the cylindrical sleeve, so as to prevent the trocar from slipping out or slipping into the cavity, so as to facilitate the trocar to pass in and out of the operation cavity, and complete the operation.

[0020] Although the utility model has been described above with reference to the embodiments, various modifications can be made thereto, and equivalent replacements can be made to the components thereof, without departing from the scope of the utility model. In particular, as long as there is no structural conflict, each feature in the embodiments disclosed by the utility model can be combined with each other in any manner, and the combinations are not exhaustively described in the specification merely for the purpose of omitting the length and saving the resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An external trocar fixation device for endoscopes, characterized in that: The utility model provides a transparent silica gel bottom dish (5), the middle position of transparent silica gel bottom dish (5) is throughly carved with round hole (3), the round hole (3) is directly connected with the cylindrical sleeve (4) of equal diameter, the round hole (3) can pass through the sleeve needle matched with its inner diameter, the bottom side of transparent silica gel bottom dish is coated with adhesive layer, and the adhesive layer can be directly pasted and fixed with skin.

2. An endoscope trocar external fixation device according to claim 1, characterized in that, The cylindrical sleeve (4) inner diameter size matches the diameter size of the round hole (3).

3. An external fixation device for a laparoscopic trocar according to claim 1, wherein The cylindrical sleeve (4) inner diameter size is respectively 10mm and 15mm two specifications, and the length is all 30mm specification.

4. The trocar outer fixation device of claim 1, wherein, The transparent silica gel bottom dish (5) diameter is 30mm specification.