CN219267132U - A laparoscopic purse-string suture practice mold for medical teaching - Google Patents

Abstract

A laparoscopic purse-string suture practice mold for medical teaching, which belongs to the technical field of medical teaching aids, includes a hose and several convex posts arranged on the flexible pipe, and the convex posts are distributed at intervals along the axial direction of the flexible pipe. The flexible pipe includes a tube outer wall, a tube middle layer and a tube inner wall connected in sequence, the surface areas of the tube outer wall, the tube middle layer and the tube inner wall are the same and completely overlapped, and the convex post is arranged on the tube outer wall , the material of the hose is silicone gel, and the hardness of the outer wall of the tube, the middle layer of the tube and the inner wall of the tube decrease in order. The utility model solves the technical problems of the existing medical teaching models such as single type, very hard or too soft texture, lack of tools suitable for purse suture practice, and the like.

Description

A laparoscopic purse-string suture practice mold for medical teaching

technical field

The utility model relates to the technical field of medical teaching aids, in particular to a laparoscopic purse suture practice mold for medical teaching.

Background technique

With the development of medical technology, laparoscopic technology has become the preferred treatment method for most surgical operations. Purse string suture can be applied to embedding of appendix stump, subtotal gastrectomy stump embedding, prostatectomy bladder neck suture, hemorrhoid mucosa circumcision, etc. The purse string suture requires the needle to be sutured circularly around the central point, wrapping the central stump while tying the knot, and embedding while tying the knot. This suture technique is widely used clinically. During the suture process, the direction of the needle holder needs to be changed, which is difficult to train and requires several clinical trainings to be able to operate proficiently.

It takes a long time for clinicians to gradually transition from medical students to surgeons who are proficient in surgery. In the past, due to the lack of suitable surgical models, the learning curve for surgeons was extremely long. However, the traditional medical teaching models are of a single type and are usually too hard or too soft to be used as practical exercises. In view of this situation, this design specially researches a simple and practical purse-string suture practice model for laparoscopic training courses. The suture effect is close to the actual human tissue, and the practice on the mold can achieve the effect similar to the real human purse-string suture.

Utility model content

The purpose of the utility model is to provide a laparoscopic purse suture practice mold for medical teaching to solve the technical problems of the existing medical teaching models such as single type, very hard or too soft texture, and lack of tools suitable for purse suture practice.

In order to achieve the above object, the utility model provides the following technical solutions:

A laparoscopic purse string suture practice mold for medical teaching, comprising a flexible tube and a number of protruding posts arranged on the flexible tube, the protruding posts are distributed at intervals along the axial direction of the flexible tube, and the flexible tube includes sequentially connected The outer wall of the tube, the middle layer of the tube, and the inner wall of the tube, the outer wall of the tube, the middle layer of the tube, and the adjacent surfaces of the inner wall of the tube have the same area and completely overlap, the boss is arranged on the outer wall of the tube, the The hose is made of silicone gel, and the hardness of the outer wall of the tube, the middle layer of the tube and the inner wall of the tube decrease in order.

Optionally, the densities of the outer wall of the tube, the middle layer of the tube and the inner wall of the tube decrease in sequence, and the densities are all greater than 1 g/cm ³ .

Optionally, the hose is made of opaque silicone gel, and the outer wall of the tube, the middle layer of the tube, and the inner wall of the tube have the same or different colors.

Optionally, the distance between adjacent protrusions is greater than or equal to 12 cm.

Optionally, the protrusion is cylindrical, and the material of the protrusion is the same as that of the outer wall of the tube.

Optionally, the outer wall of the tube has a smooth surface, and the length of the protrusion is greater than 5 mm.

Optionally, the outer wall of the tube, the middle layer of the tube and the inner wall of the tube are sequentially combined to form an integrated structure without gaps between them.

Optionally, part of the surface of the outer wall of the tube is coated with an adhesive layer, and the adhesive layer is covered with release paper.

Optionally, both the thickness of the outer wall of the tube and the thickness of the inner wall of the tube are greater than or equal to the thickness of the middle layer of the tube.

Optionally, marking points are provided on the outer wall of the tube between adjacent bosses.

Compared with the prior art, the beneficial effect of the utility model is: by setting the material hardness of the outer wall of the tube, the middle layer of the tube, and the inner wall of the tube to be different, the appearance, color, toughness, and activity of the practice mold highly simulate the physical properties of human tissue. The trait is an ideal medical teaching model, which is not only of great significance to the development of specialized training courses for surgical residents, but also plays a role in promoting and promoting the shortening of the surgical learning curve for clinicians; it is simple to make, and its shape roughly conforms to the actual human tissue It is suitable for students to simulate laparoscopic purse string suture, which is helpful for the accumulation and learning of clinical operations. You can cut a section for practice. There is an adhesive layer on the outer surface of the hose, which is easy to fix and convenient for practice. The outer wall of the tube, the middle layer of the tube and the inner wall of the tube are sequentially combined to form an integrated structure, which has better integrity. Cut a section of hose You can do two exercises.

Description of drawings

Fig. 1 is a schematic structural view of a purse-string suture practice mold under a laparoscope for medical teaching according to an embodiment of the present invention;

Fig. 2 is a suture effect diagram of a laparoscopic purse-string suture practice mold for medical teaching according to an embodiment of the present invention.

Reference signs: 1. Outer wall of the tube; 2. Middle layer of the tube; 3. Inner wall of the tube; 5. Protruding post.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In order to better understand the purpose, structure and function of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, a purse-string suture practice mold for medical teaching under the endoscope of the present utility model includes a hollow hose with open ends and a number of bosses arranged on the hose, and the bosses are used for Simulate the stump of human tissue, the number of convex columns depends on the length of the hose, the longer the hose, the more convex columns, the convex columns are distributed along the axial direction of the hose, and there is a certain distance between the convex columns arranged in a straight line. The distance between adjacent convex columns is greater than or equal to 12cm, leaving a certain space for cutting the hose section and subsequent suturing practice. The hose includes the outer wall of the tube, the middle layer of the tube and the inner wall of the tube connected in sequence. The surface area of the middle layer and the inner wall of the tube are the same and completely overlapped, the convex column is arranged on the outer wall of the tube, the material of the hose is preferably silicone gel, and the hardness of the outer wall of the tube, the middle layer of the tube and the inner wall of the tube decrease in order. The density of the outer wall of the tube, the middle layer of the tube and the inner wall of the tube decrease in turn, and the density is greater than 1g/cm ³ . For example, the density of the outer wall of the tube is 1.12g/cm ³ , the density of the middle layer of the tube is 1.07g/cm ³ It is 1.02g/cm ³ .

The material of the hose is opaque silicone gel. The outer wall of the tube, the middle layer of the tube and the inner wall of the tube are the same or different in color, preferably a three-layer structure of different colors. The color of the outer wall of the tube is close to the skin color of the human body, the middle layer of the tube is white, and the inner wall of the tube The color is pale pink.

The convex column is cylindrical. Preferably, the cylindrical convex column is perpendicular to the outer wall of the tube. The material of the convex column is the same as that of the outer wall of the tube. Both the hose and the convex column of the practice mold can be made by 3D printing, and injection molding can also be used. Or extrusion molding process.

The surface of the outer wall of the hose is smooth, the length of the boss is greater than 5mm, the diameter of the cylindrical boss is 3mm, and the length of the boss is preferably 10mm.

The outer diameter of the flexible pipe is preferably 5cm, the thickness of the flexible pipe wall is preferably about 2.5mm, the thickness of the outer wall of the pipe and the thickness of the inner wall of the pipe are greater than or equal to the thickness of the middle layer of the pipe, for example, wherein the thickness of the outer wall of the pipe is 1.0mm, The thickness of the middle layer of the tube is 0.5 mm, and the thickness of the inner wall of the tube is 1.0 mm. The outer wall of the tube, the middle layer of the tube and the inner wall of the tube are sequentially combined to form an integrated structure without gaps between them.

Part of the surface of the outer wall of the tube is coated with an adhesive layer. The surface of the outer wall of the tube without convex posts can have an adhesive layer. The adhesive layer is covered with a release paper. After cutting a section of hose, it can be pasted during operation. Secure this practice mold for easy purse-string suture practice.

In order to indicate the appropriate cutting position when cutting the hose section, there are marking points on the outer wall of the pipe between adjacent convex posts. The color of the marking point is different from the color of the outer wall of the pipe. The marking point can be a section of colored For the straight line segment, the marking point is preferably set at the middle point between adjacent protrusions.

The utility model provides a method for using the purse suture practice mold under the endoscope for medical teaching. For the practice mold without the viscose layer, first cut a section of hose from the practice mold according to a suitable length, such as 12cm long hose section, then fix the edge and bottom of the hose section with clips (the practice mold with adhesive layer only needs to remove the release paper), put it into the existing known laparoscopic simulation training device, Cut off a part of the convex column at a position about 5mm away from the outer wall surface of the tube, and the height of the remaining convex column should not exceed 5mm; under the guidance of the existing known analog endoscopic machine, the needle holder clamps 3-0 Suture the seromuscular layer on the tube wall around 1cm away from the convex post with absorbable suture or common medical suture, about 5~6 stitches to complete the purse string suture, tie the purse string suture to half tight, and use a needle holder Lift the two ends of the silk thread with the tool, press the separating forceps into the purse with the remaining boss, completely tighten the purse suture, and complete the knotting and embedding.

The above has schematically described the utility model and its implementation, which is not restrictive, and what is shown in the drawings is only one of the implementation of the utility model, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by it, without departing from the purpose of the utility model, without creatively designing a structural method and embodiment similar to the technical solution, all should belong to the utility model protected range.

Claims (10)

1. The utility model provides a medical science teaching is with pouch stitching exercise mould under scope, its characterized in that, include the hose and locate a plurality of posts on the hose, the post is followed hose axial interval distribution, the hose is including the outer wall of pipe, pipe intermediate level and the intraductal wall that connect gradually, the outer wall of pipe the intermediate level with the area on the adjacent surface of intraductal wall is the same and overlap completely, the post is located on the outer wall of pipe, the material of hose is silica gel, the outer wall of pipe the intermediate level with the hardness of intraductal wall reduces in proper order.

2. The endoscopic purse string suture practice mold for medical teaching according to claim 1, wherein the densities of the outer tube wall, the intermediate tube layer and the inner tube wall are sequentially reduced and each have a density of more than 1g/cm ³ 。

3. The endoscopic purse string suture practice mold for medical teaching according to claim 1, wherein the hose is made of opaque silica gel, and the outer wall of the tube, the intermediate layer of the tube and the inner wall of the tube are the same or different in color.

4. The endoscopy purse-string suture practice mold of claim 1, wherein the spacing distance between adjacent posts is greater than or equal to 12cm.

5. The endoscopic purse string suture practice mold for medical teaching according to claim 4, wherein the convex column is cylindrical, and the convex column is made of the same material as the outer wall of the tube.

6. The endoscopic purse string suture practice mold for medical teaching according to claim 1, wherein the outer wall surface of the tube is smooth, and the length of the protruding column is greater than 5mm.

7. An endoscopic purse string suture practice mold for medical teaching according to any one of claims 1 to 6, wherein the outer tube wall, the intermediate tube layer and the inner tube wall are sequentially joined together to form an integral structure without gaps therebetween.

8. A medical teaching endoscopic purse string exercise mold according to any one of claims 1 to 6, wherein part of the surface of the outer wall of the tube is coated with an adhesive layer, said adhesive layer being covered with release paper.

9. An endoscopic purse string suture practice mold for medical teaching according to any one of claims 1 to 6, wherein the thickness of the outer tube wall and the thickness of the inner tube wall are both greater than or equal to the thickness of the intermediate tube layer.

10. A medical teaching endoscopic purse-string suture practice mould according to any one of claims 1 to 6, wherein marker points are provided on the outer wall of the tube between adjacent said studs.

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