Airtight negative pressure type high-capacity blood circulation device for vein model

A large-capacity, negative-pressure technology, applied in the field of medical teaching models, can solve the problems of inconsistency, inability to complete exercises, and low degree of simulation, and achieve the effect of good venous filling and simulated increase in blood volume

Active Publication Date: 2016-09-28
张大新
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Problems solved by technology

The principle is simple and the degree of simulation is low, it cannot match the actual clinical operatio

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  • Airtight negative pressure type high-capacity blood circulation device for vein model

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[0010] The structure of the present invention is further described below in conjunction with the accompanying drawings of the specification.

[0011] Refer to the figure, this device contains 3 parts, the vein model vascular network 2 (elastic hose), the elastic working bag 4 (made of elastic rubber) and the plasma tank 8 (made of hard plastic). One-way valves 5 and 3 are installed at the outlet and inlet of the elastic working bag 4. When only the elastic working bag 4 is pressurized, the pressure inside the bag increases, the one-way valve 3 and the damping valve 6 are opened, and the one-way valve 5 is closed. The simulated plasma flows into the venous vascular network 2 through the output tube 10, and then flows into the plasma through the return tube 1 Storage tank 8. When the pressure on the elastic working bladder 4 is released, the negative pressure in the elastic working bladder 4 increases, which simulates the flow of plasma from the plasma storage tank 8 into the elas...

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Abstract

The invention discloses an airtight negative pressure type high-capacity blood circulation device for a vein model, belongs to medical teaching models, and particularly relates to a blood circulation dynamic device for a venous puncture teaching model. A closed plasma storage tank is connected with an inlet of an elastic work bag, an outlet of the elastic work bag is connected with a vein model vascular net, an outlet of the vein model vascular net is connected to the plasma storage tank through a plasma return pipe, a drain pipe is connected to one side of the return pipe, the outlet and inlet of the elastic work bag are each provided with a one-way valve, and a one-way damper valve is installed at the position where the vein model vascular net is connected with the plasma storage tank. The device is connected with a vein model at the corresponding position to form a high-simulation model with venous blood circulation, and practice similar to clinical venous infusion can be provided for practitioners.

Description

Technical field [0001] The invention belongs to a medical teaching model, and in particular relates to a blood circulation motive device for a teaching model of venipuncture. Background technique [0002] Many of the current venipuncture teaching uses animals, and its teaching costs are high, and it is usually difficult for students to get hands-on practice opportunities. In order to solve this problem, Chinese patent literature discloses some puncture models such as simulated training arms and simulated palms. Most of these training models have the structure of a simulated vein under the silicone skin, and the simulated vein model is connected to an external plasma sac. The height of the suspension of the plasma sac fills the blood vessels with plasma under the action of gravity. The principle is simple and the degree of simulation is low, and it cannot be consistent with the actual clinical operation, and cannot complete the practice of the entire infusion process. It has grea...

Claims

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Application Information

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IPC IPC(8): G09B23/28
CPCG09B23/28
Inventor 张大新
Owner 张大新
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