A TEP Gap Space Creation Device and Its Usage Method

Abstract

The present invention discloses a TEP gap space creation device and its usage method, which relates to the technical field of medical auxiliary instruments. The device includes a hollow transparent tube body. The front end of the transparent tube body is formed into a wedge shape, and a conductive metal wire is transversely installed at the wedge-shaped front end. The rear end of the transparent tube body is enlarged, and a rubber ring is attached to the inner wall of the rear end of the transparent tube body along the circumference. An electrode post connected to the conductive metal wire is provided on the outer wall of the rear end of the transparent tube body. The TEP gap space creation device provided by the present invention can be sleeved outside the laparoscope during use to protect the lens from being worn. For the device provided by the present invention, its front end is provided with an electrode composed of conductive metal, which can electrocoagulate the capillaries encountered during the advancement to avoid bleeding, thereby solving the technical problem that the laparoscope lens directly contacts the tissue during the existing mirror pushing process, resulting in blurred vision.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary devices, and particularly relates to a TEP gap space creation device and a using method thereof. Background Art

[0002] Abdominal external hernia is one of the most common diseases in abdominal surgery, among which the incidence of inguinal hernia is the highest. Inguinal hernia refers to the hernia formed by the protrusion of abdominal viscera through the defect in the inguinal region to the body surface, commonly known as "hernia". Inguinal hernia is a common and frequently-occurring disease in general surgery. The treatment of abdominal external hernia requires surgical repair to be cured. At present, the surgery is divided into open surgical repair and laparoscopic surgical repair. Compared with the traditional surgery, laparoscopic surgery has relatively less trauma, less postoperative pain, and faster postoperative recovery. It is very popular among patients, especially with small postoperative scars and meeting the aesthetic requirements, and young patients are more willing to accept it. Minimally invasive surgery is the general trend and pursuit goal of the development of surgery.

[0003] At present, laparoscopic hernia repair surgery is divided into: intraperitoneal repair and totally extraperitoneal hernia repair. Totally extraperitoneal laparoscopic hernia repair surgery includes laparoscopic totally extraperitoneal inguinal hernia repair (abbreviation: TEP) and laparoscopic totally extraperitoneal abdominal wall hernia repair (abbreviation: TES). Among them, totally extraperitoneal repair requires creating a gap space for surgical operation.

[0004] With the continuous update of the concepts of fast-track rehabilitation and minimally invasive surgery, laparoscopic inguinal hernia repair is applied more and more widely, and patients have less trauma and can recover to their daily work faster. And laparoscopic totally extraperitoneal hernia repair (TEP) has become one of the standard surgical procedures for the treatment of adult inguinal hernia. Therefore, successfully establishing the preperitoneal space is the key to the success or failure of this surgery.

[0005] At present, a balloon separator can be used to expand the preperitoneal space for establishing the preperitoneal space, but the cost is relatively high. At present, finger separation or mirror pushing method is commonly used in China to establish the preperitoneal space, but these two methods have high technical requirements and are prone to cause extraperitoneal bleeding and peritoneal rupture, resulting in surgical failure. The space created by finger separation is limited, and the operator often switches to the mirror pushing method to continue establishing the working space. In this method, the laparoscope lens advances forward along the posterior sheath of the rectus abdominis muscle. During the mirror pushing process, the laparoscope lens directly contacts the tissue, and the tissue fluid and capillary bleeding easily cause the field of view to be blurred and unable to distinguish the anatomical layers, and then it is easy to enter the wrong layer or damage the blood vessels and bleed or tear the peritoneum. Summary of the Invention

[0006] The present invention provides a TEP gap space creation device and a using method thereof to solve the technical problem that the laparoscope lens directly contacts the tissue during the existing mirror pushing process, resulting in a blurred field of view.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0008] A TEP gap space creation device, comprising a hollow transparent tube body, the front end of the transparent tube body is set in a wedge shape, and a conductive metal wire is transversely installed at the front end of the wedge shape; the rear end of the transparent tube body is enlarged, and a rubber ring is attached to the inner wall of the rear end of the transparent tube body along the circumferential direction, and an electrode post for connecting the conductive metal wire is arranged on the outer wall of the rear end of the transparent tube body.

[0009] Preferably, the conductive metal wire extends inside the transparent tube body to the electrode post and is connected to the electrode post, avoiding external leakage of the wire and keeping the outside of the device smooth.

[0010] Preferably, there are two convex corners protruding forward on the left and right at the front end of the wedge-shaped part of the transparent tube body, facilitating the device to penetrate into the tissue; the edges of the convex corners are set in an arc shape to avoid sharp damage to the tissue.

[0011] Preferably, the front edge of the wedge-shaped part of the transparent tube body is set in an arc shape to avoid sharp damage to the tissue.

[0012] Preferably, the maximum diameter of the transparent tube body does not exceed 12 mm, and the length is 25 - 31 cm, meeting the size requirements of the corresponding endoscope and facilitating insertion into a laparoscopic trocar (Hopkins second-generation technology endoscope).

[0013] Furthermore, the upper surface of the wedge-shaped part of the transparent tube body is in an arc concave surface, and the pushing surface is processed into an arc shape to increase the smoothness of the field of view.

[0014] Even further, the positions of the wedge-shaped part of the transparent tube body near the front edge and near the rear edge both protrude upward, forming a groove between the protrusion and the concave surface, so that the tissue fluid gathers in the groove, avoiding the main field of view being blocked and further increasing the smoothness of the field of view.

[0015] Even further, the wedge-shaped surface of the transparent tube body is coated with a waterproof and oil-proof coating to avoid water and grease on the tissue affecting the operating field of view during the operation.

[0016] The usage method of the TEP gap space creation device is as follows: Before performing TEP, the rear end of the transparent tube body is sleeved outside the laparoscopic lens, and then the treatment is carried out according to the conventional TEP.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The TEP gap space creation device provided by the present invention can be sleeved outside the laparoscope during use, protecting the lens from being worn;

[0019] 2. The device provided by the present invention has an electrode made of conductive metal at its front end, which can electrocoagulate capillaries encountered during propulsion to avoid bleeding, thus solving the technical problem that the laparoscopic lens directly contacts tissues during the existing mirror propulsion process, resulting in blurred vision.

[0020] 3. The head of the device provided by the present invention is wedge-shaped, which is conducive to tissue separation.

[0021] 4. The device provided by the present invention has a simple structure and low cost. Because of its simplicity, economy and effectiveness, it can be made into a disposable product, which better meets the medical aseptic requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the TEP space creation device provided for Example 1;

[0023] Figure 2 Cross-sectional schematic diagram of the conductive metal wire in the TEP space creation device provided for Example 1;

[0024] Figure 3 Schematic diagram of the TEP space creation device provided for Example 2;

[0025] Figure 4 Schematic diagram of the TEP space creation device provided for Example 3;

[0026] Figure 5 Schematic diagram of the connection relationship between the TEP space creation device and the laparoscope. The arrow direction in the figure is the moving direction of the TEP space creation device and the laparoscope during installation.

[0027] Among them, the names corresponding to the reference marks in the drawings are: 1. Wedge-shaped arc surface; 2. Conductive metal wire; 21. Conducting wire; 22. Insulating skin; 3. Electrode column; 4. Convex angle; 5. Front protrusion; 6. Rear protrusion; 7. Lens. DETAILED DESCRIPTION OF THE INVENTION

[0028] The present invention will be further described below with reference to the drawings and embodiments. The implementation manners of the present invention include but are not limited to the following embodiments.

[0029] Example 1

[0030] As Figure 1As shown in the figure, this embodiment provides a TEP gap space creation device, which includes a hollow transparent tube body. The front end of the transparent tube body is set in a wedge shape. The upper surface of the wedge shape is set as a downward concave wedge-shaped arc surface 1, and the pushing surface is subjected to an arc treatment to increase the smoothness of the field of view. And a conductive metal wire 2 is transversely installed at the front end of the wedge shape. The rear end of the transparent tube body bulges and is slightly trumpet-shaped to form a connection space with the laparoscope. And a rubber ring is pasted along the circumference on the inner wall of the rear end of the transparent tube body, so that the friction between the laparoscope and the transparent tube body is increased to avoid slipping and falling off during the operation. Two electrode posts 3 for connecting the conductive metal wire are arranged on the outer wall of the rear end of the transparent tube body.

[0031] As a preferred solution, the conductive metal wire extends inside the transparent tube body to the electrode post and is connected to the electrode post to avoid external leakage of the wire and keep the outside of the device smooth. Regarding the setting of the conductive metal wire, as Figure 2 shown, the processing method in this embodiment is to half-cut the insulating skin 22 of the part of the conductive metal wire located at the front edge of the wedge shape at the front end of the transparent tube body, so that the side of the wire 21 in contact with the tissue in front is exposed, and the parts connecting the transparent tube body and the bottom surface are insulated and protected to prevent damage to the bottom peritoneum. The two ends of the conductive metal wire are drilled into the transparent tube body through the holes on the transparent tube body, and then extend backward to the electrode post, and then the holes are drilled to connect the metal wire with the corresponding electrode post 3. Of course, this embodiment is only a preferred example, and the present invention is not limited to this processing solution.

[0032] As a preferred solution, the front edge of the wedge-shaped part of the transparent tube body is set in an arc shape, that is, all edges are subjected to blunt treatment to avoid sharp damage to tissues.

[0033] As a preferred solution, the wedge-shaped surface of the transparent tube body is coated with a waterproof and oil-proof coating to avoid the influence of water and grease on the tissue during the operation on the operation field of view.

[0034] Embodiment 2

[0035] As Figure 3 shown, on the basis of Embodiment 1, this embodiment is provided with two convex corners 4 protruding forward on the left and right at the front end of the wedge-shaped part. When entering the narrow tissue, one convex corner 4 picks up the tissue to facilitate the overall entry of the device. The edge of the convex corner 4 is set in an arc shape to avoid sharp damage to tissues.

[0036] Embodiment 3

[0037] As Figure 4As shown in the figure, on the basis of Embodiment 1, the wedge-shaped parts of the transparent tube body bulge upward near the front edge and near the rear edge, forming a front bulge 5 and a rear bulge 6. Grooves are formed between the front bulge 5 and the rear bulge 6 and the wedge-shaped arc surface 1, so that during the mirror pushing process, the tissue fluid in contact with it gathers in the grooves, avoiding the occlusion of the main visual field part and further increasing the smoothness of the visual field.

[0038] As Figure 5 shown, it is a schematic diagram of the connection relationship between the TEP gap space creation device provided in any one of Embodiments 1 to 3 and the laparoscope. When in use, the TEP gap space creation device and the laparoscope lens 7 are brought closer in the direction of the arrow and then sleeved. A large frictional force is formed between the outer wall of the laparoscope and the rubber ring on the inner wall of the TEP gap space creation device, and then the installation is completed. After installation, its use process is as follows:

[0039] Step S1: Incise the skin and the anterior sheath of the rectus abdominis muscle to enter the retromuscular space of the rectus abdominis muscle, and place the laparoscope puncture sheath.

[0040] Step S2: Sleeve the device of the present invention outside the laparoscope lens, enter the surgical field through the puncture sheath, and push forward and to both sides along the posterior sheath of the rectus abdominis muscle under direct vision of the laparoscope. When encountering capillaries, the front-end electrode of the device can be used for electrocoagulation hemostasis, and gradually separate the loose space to create a space.

[0041] The TEP gap space creation device provided in any one of Embodiments 1 to 3 is made of transparent medical plastic material and is installed and sleeved outside the laparoscope lens to correctly establish the preperitoneal space anatomical space under the monitoring of the laparoscope. The creation process is carried out under visual conditions, effectively avoiding going wrong in the layers, damaging blood vessels and bleeding, or puncturing the peritoneum. In order to facilitate the device to be placed into the laparoscope puncture device (with a diameter of about 12 mm), the maximum transverse diameter of the whole device does not exceed 11 mm. Electrocoagulation hemostasis avoids blurred vision, is beneficial to the operation of young doctors, shortens the operation time, improves the operation safety, improves the patient's cure rate, and the method is simple and easy to operate, stable in operation, and suitable for clinical application and promotion.

[0042] The above embodiments are only one of the preferred embodiments of the present invention and should not be used to limit the protection scope of the present invention. Any meaningless changes or touch-ups made on the main design concept and spirit of the present invention, as long as the technical problems solved are still the same as those of the present invention, should be included in the protection scope of the present invention.

Claims

1. A TEP gap space creating device, characterized in that: It includes a hollow transparent tube body. The front end of the transparent tube body is set in a wedge shape, and a conductive metal wire is transversely installed at the front end of the wedge shape. The front edge of the wedge-shaped part of the transparent tube body is set in an arc shape. There are two convex corners protruding forward on the left and right at the front end of the wedge-shaped part of the transparent tube body, and the edges of the convex corners are set in an arc shape. The rear end of the transparent tube body is enlarged, and a rubber ring is pasted along the circumference on the inner wall of the rear end of the transparent tube body. An electrode post for connecting the conductive metal wire is provided on the outer wall of the rear end of the transparent tube body.

2. The TEP gap space creating device according to claim 1, characterized in that: The conductive metal wire extends inside the transparent tube body to the electrode post and is connected to the electrode post.

3. The TEP gap space creating device according to claim 1, wherein: The maximum diameter of the transparent tube body does not exceed 12 mm, and the length is 25 - 31 cm.

4. The TEP gap space creating device according to any one of claims 1 to 3, characterized in that: The upper surface of the wedge-shaped part of the transparent tube body is an arc-shaped concave surface.

5. The TEP gap space creating device according to claim 4, wherein: Both the position near the front edge and the position near the rear edge of the wedge-shaped part of the transparent tube body bulge upward.

6. The TEP gap space creating device according to claim 4, wherein: The wedge-shaped surface of the transparent tube body is coated with a waterproof and oil-proof coating.

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