CN212906758U

CN212906758U - Arteriovenous internal fistula anastomosis operation trainer

Info

Publication number: CN212906758U
Application number: CN202022289034.0U
Authority: CN
Inventors: 佘康; 张宪生
Original assignee: Peking University First Hospital
Current assignee: Peking University First Hospital
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-04-06
Anticipated expiration: 2030-10-14

Abstract

The utility model relates to a medical science anatomical model technical field, concretely relates to arteriovenous internal fistula anastomosis operation trainer. The utility model discloses a arteriovenous internal fistula anastomosis operation trainer, include: the blood vessel simulator comprises an installation layer, a simulated blood vessel and a fixing piece, wherein a first groove for training is formed in the upper surface of the installation layer; the simulated blood vessel is arranged on the mounting layer through the fixing piece and penetrates through the first groove. Through setting up first recess, make the hand have abundant activity space when training, the training of being convenient for, and the simulation blood vessel passes first recess, makes the utility model discloses a sound arteries and veins internal fistula anastomosis operation training device is close the clinical condition of blood vessel anastomosis, and training is effectual, for the traditional method of adopting training animal training, the utility model provides an installation layer, simulation blood vessel and mounting cost are lower, and can not use, clean health by no limit. When the installation layer, or the simulated blood vessel, or the fixing piece is damaged, the installation layer can be replaced.

Description

Arteriovenous internal fistula anastomosis operation trainer

Technical Field

The utility model relates to a medical science anatomical model technical field, concretely relates to arteriovenous internal fistula anastomosis operation trainer.

Background

Vascular anastomosis is one of the basic techniques of surgery and is also the core step of vascular surgery. Most vascular surgical procedures require vascular anastomosis, and the technique requires long-term practice and a long learning curve.

An internal arteriovenous fistula operation is a special operation of vascular surgery, and the core step of the operation is to anastomose a thin artery and a vein of a human body together, usually to anastomose one end of the vein to the side wall of the artery. Traditional internal arteriovenous fistula operation is generally anastomosed the exercise with experimental animals, and this kind of training side sense of reality is strong, has fine training effect, but experimental animals are with high costs, and is not sanitary enough moreover.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a sound arteries and veins internal fistula operation trainer that coincide to solve among the prior art sound arteries and veins internal fistula operation and coincide the exercise with the training animal, training is with high costs, and unhygienic defect.

The technical scheme of the utility model is that:

an arteriovenous internal fistula anastomosis operation trainer, includes: the blood vessel simulator comprises an installation layer, a simulated blood vessel and a fixing piece, wherein a first groove for training is formed in the upper surface of the installation layer; the simulated blood vessel is arranged on the mounting layer through the fixing piece and penetrates through the first groove.

Preferably, the mounting layer comprises a first layer and a second layer, the first layer is arranged above the second layer, and the first layer is made of simulated elastic materials.

Preferably, the second layer is made of a plastic material.

Preferably, simulating a blood vessel comprises: a first blood vessel and a second blood vessel, the first blood vessel being used for simulating an artery and having a diameter of 1-3 mm and a wall thickness of 0.1-0.3 mm; the second blood vessel is used for simulating veins, and has a diameter of 2-4 mm and a wall thickness of 0.1-0.3 mm;

preferably, the fixation member passes through the first layer, the simulated blood vessel, and the second layer in this order.

Preferably, a second groove is formed in the groove wall of the first groove, and the end part of the blood vessel is arranged in the second groove.

Preferably, the first recess is oval and the second recess is trapezoidal or rod-shaped.

Preferably, the first layer is provided with an opening, and the opening and the second layer form a first groove.

Preferably, the second groove is provided on the first layer or the second layer.

Preferably, the training device for arteriovenous internal fistula anastomosis further comprises a box body, wherein the box body comprises a base and a cover body, the mounting layer is arranged in the base, and the edge part of the mounting layer is flush with the edge of the base.

The utility model discloses technical scheme has following advantage:

1. the utility model discloses a arteriovenous internal fistula anastomosis operation trainer, include: the blood vessel simulator comprises an installation layer, a simulated blood vessel and a fixing piece, wherein a first groove for training is formed in the upper surface of the installation layer; the simulated blood vessel is arranged on the mounting layer through the fixing piece and penetrates through the first groove.

Through setting up first recess, make the hand have abundant activity space when training, the training of being convenient for, and the simulation blood vessel passes first recess, makes the utility model discloses a sound arteries and veins internal fistula anastomosis operation training device is close the clinical condition of blood vessel anastomosis, and training is effectual, for the traditional method of adopting training animal training, the utility model provides an installation layer, simulation blood vessel and mounting cost are lower, and can not use, clean health by no limit. When the installation layer, or the simulated blood vessel, or the fixing piece is damaged, the installation layer can be replaced.

2. The utility model discloses a sound internal fistula training device that coincide, the mounting layer includes first layer and second floor, and the second floor top is located to the first layer, and the first layer adopts emulation elastic material to make, and the mounting passes first layer, simulation blood vessel and second floor in proper order.

Through setting up the installation layer to two-layer, on the one hand, because first layer contacts with the staff when the training, adopts emulation elastic material, makes the utility model discloses a sound arteries and veins internal fistula anastomosis training device is closer to the clinical condition of blood vessel anastomosis, and on the other hand, the second floor adopts plastic material to make, not only can play the effect of supporting the fixed needle, and can adopt the material that the relative emulation elastic material price is lower to make, makes the utility model discloses a sound arteries and veins internal fistula anastomosis training device not only has good performance, and manufacturing cost is lower.

3. The utility model discloses a arteriovenous internal fistula anastomosis operation trainer has seted up the second recess on the cell wall of first recess, and in the second recess was located to vascular tip, first recess was oval, and the second recess is trapezoidal. Set up first recess into the ellipse to make this device more be close the vascular anastomosis clinical situation, set up the second recess into trapezoidal or rod shape, simulate blood vessel can fully move about when training, make the practitioner adapt to the arteriovenous internal fistula anastomosis clinical situation better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the arteriovenous internal fistula anastomosis surgical training device of the utility model;

FIG. 2 is a schematic structural view of the backside of the first layer shown in FIG. 1;

fig. 3 is a schematic structural view of a cross-sectional view of the device shown in fig. 1.

Description of reference numerals:

1-a first groove; 2-mimic blood vessels; 3-a first layer; 4-a second layer; 5-a fixing piece; 6-first blood vessel; 7-the second blood vessel; 8-a second groove; 9-base.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The embodiment provides an internal arteriovenous fistula anastomosis surgery trainer, is suitable for training internal arteriovenous fistula operation, as shown in fig. 1-3, includes: the blood vessel simulator comprises an installation layer, a simulated blood vessel 2 and a fixing piece 5, wherein the upper surface of the installation layer is provided with a first groove 1 for training; the simulated blood vessel 2 is arranged on the mounting layer through the fixing piece 5 and penetrates through the first groove 1.

Through setting up first recess 1, make the hand have abundant activity space when training, the training of being convenient for, and simulation blood vessel 2 passes first recess 1, makes the utility model discloses a sound vein internal fistula anastomosis operation training device is close the clinical condition of blood vessel anastomosis, and training is effectual, for the traditional method of adopting training animal training, the utility model provides a mounting layer, simulation blood vessel 2 and mounting 5 cost are lower, and can use clean health not for the limit. When the installation layer, or the simulated blood vessel 2, or the fixing piece 5 is damaged, the installation layer can be replaced.

The mounting layer comprises a first layer 3 and a second layer 4, the first layer 3 is arranged above the second layer 4, the first layer 3 is made of simulation elastic materials, the simulation elastic materials are silica gel, and the simulation elastic materials are integrally molded.

Through setting up the installation layer to two-layer, on the one hand, because first layer 3 contacts with the staff when the training, adopts emulation elastic material, makes the utility model discloses a sound arteries and veins internal fistula operation trainer that coincide more is close the clinical condition of vascular anastomosis, on the other hand, second floor 4 adopts plastic material to make, and plastic material in this embodiment can be sponge, timber, rubber, foam etc to when training, the second floor takes place to warp when dragging simulation blood vessel 2, and then influences the training effect. But also can play the effect of supporting the fixed needle, and adopt the lower material of relative emulation elastic material price to make, make the utility model discloses a training device for arteriovenous internal fistula anastomosis not only has good performance, and manufacturing cost is lower.

As an alternative embodiment, the mounting layer may be of unitary construction.

Wherein, the simulated blood vessel 2 comprises: a first blood vessel 6 and a second blood vessel 7, the first blood vessel 6 being used to simulate an artery and having a diameter of 1-3 mm and a wall thickness of 0.1-0.3 mm; the second blood vessel 7 is used for simulating veins, the diameter of the second blood vessel is 2-4 mm, the wall thickness of the second blood vessel is 0.1-0.3 mm, and the first blood vessel 6 and the second blood vessel 7 are soft rubber tubes.

The fixing member 5 sequentially passes through the first layer 3, the simulated blood vessel 2 and the second layer 4, the fixing member 5 in this embodiment is a pin, and it should be noted that the fixing member 5 may also be a screw or other article capable of penetrating through the installation layer and the simulated blood vessel 2.

Second recess 8 has been seted up on the cell wall of first recess 1, second recess 8 is located to vascular tip, wherein, first recess 1 is oval, so that this device more is close the clinical condition of vascular anastomosis, second recess 8 is trapezoidal or rod shape, the both ends of first blood vessel 6 are passed through mounting 5 and are installed in rod shape recess, the both ends of second blood vessel 7 are passed through mounting 5 and are installed in trapezoidal recess, the internal arteriovenous fistula operation is usually anastomosed the lateral wall of artery with the one end of vein on, therefore the activity degree of vein is compared in the artery greatly, install the both ends of second blood vessel 7 in trapezoidal recess, second blood vessel 7 can fully move about when training, first blood vessel 6 remains stable, make the practitioner adapt to the internal arteriovenous fistula clinical condition that anastomoses better.

An opening is formed in the first layer 3, a first groove 1 is formed by the opening and the second layer 4, and a second groove 8 is formed in the first layer 3.

As an alternative embodiment, the second grooves 8 are provided in the second layer 4.

As a second alternative embodiment, a third groove is included, arranged vertically opposite to the second groove 8, said second groove 8 being provided on the first layer 3 and the second groove 8 being provided on the second layer 4.

The training device for the arteriovenous internal fistula anastomosis operation further comprises a box body, wherein the box body comprises a base 9 and a cover body, the base 9 is used for protecting and accommodating the installation layer in the installation layer is arranged on the base 9, the size of the installation layer is matched with the first layer 3 and the second layer 4, the edge part of the installation layer is flush with the edge of the base 9, and the edge part of the base 9 interferes with the anastomosis training when the training is carried out.

As an alternative embodiment, the casing may not be provided, and the first layer 3 and the second layer 4 may be fixed by the fixing member 5 or by other means, for example, a clip may be used to fix the first layer 3 and the second layer 4.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides an arteriovenous internal fistula anastomosis operation trainer which characterized in that includes:

the upper surface of the mounting layer is provided with a first groove (1) for training;

simulated blood vessel (2) and mounting (5), simulated blood vessel (2) pass through mounting (5) are located on the installation layer, and pass through first recess (1).

2. An arteriovenous internal fistula anastomosis training device according to claim 1, wherein the mounting layer comprises a first layer (3) and a second layer (4), the first layer (3) being provided above the second layer (4), the first layer (3) being made of a simulated elastic material.

3. The arteriovenous internal fistula anastomosis training device of claim 2, wherein the second layer (4) is made of a plastic material.

4. The arteriovenous internal fistula anastomosis training device of claim 2, wherein the simulated vessel (2) comprises:

a first blood vessel (6) for simulating an artery, having a diameter of 1-3 mm and a wall thickness of 0.1-0.3 mm;

a second blood vessel (7) for simulating a vein, having a diameter of 2-4 mm and a wall thickness of 0.1-0.3 mm.

5. An arteriovenous internal fistula anastomosis training device according to claim 2, characterized in that the fixing member (5) passes through the first layer (3), the simulated vessel (2) and the second layer (4) in this order.

6. The arteriovenous internal fistula anastomosis training device according to any one of claims 2 to 5, wherein a second groove (8) is formed in the wall of the first groove (1), and the end of the simulated vessel (2) is arranged in the second groove (8).

7. The arteriovenous internal fistula anastomosis training device of claim 6, wherein the first groove (1) is oval and the second groove (8) is trapezoidal or rod-shaped.

8. An arteriovenous internal fistula anastomosis training device according to claim 6, characterized in that the first layer (3) is provided with an opening which forms the first recess (1) with the second layer (4).

9. An arteriovenous internal fistula anastomosis training device according to claim 8, characterized in that the second recess (8) is provided on the first layer (3) or the second layer (4).

10. The arteriovenous internal fistula anastomosis training device according to claim 1, further comprising a box body, wherein the box body comprises a base (9) and a cover body, the mounting layer is arranged in the base (9), and the edge part of the mounting layer is flush with the edge of the base (9).