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Infusion method and device with microflow

An infusion device and micro-flow technology, which is applied in the field of equipment, can solve problems such as difficult, unavailable, and difficult, and achieve the effect of simple structure, low strength requirements, and blood drug concentration control

Inactive Publication Date: 2005-10-12
汤志斌
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Problems solved by technology

However, it is very difficult to make the liquid flow out continuously at a substantially constant flow rate due to the compressibility of the gas, especially in the case of micro flow rate.
[0005] In the treatment of diabetes with insulin, and in some treatments using analgesics, in addition to the continuous input of the liquid medicine into the human body or on the human body with a substantially constant micro-flow rate, sometimes it is necessary to make the liquid medicine Can be infused in a short period of time with a large dose, the above two technical solutions do not have such a function

Method used

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Embodiment Construction

[0038] An embodiment of the micro-flow infusion device of the present invention is an insulin infusion pump that can be used by diabetics, and it can also be used to infuse analgesics; for its structure, please refer to figure 1 . The casing of the micro-flow infusion device is composed of a pump body 1 and a pump cover 2 buckled on the pump body 1 .

[0039] The pump body 1 is in the shape of an oblate box with an open top surface, made of hard transparent plastic material; its inner cavity 11 is used to receive a crushable liquid storage bag 6, and the bottom wall 12 of the inner cavity 11 is in contact with the liquid storage bag 6 is in contact with the flat bottom surface, and the side wall of the inner cavity 11 has a conduit hole 13 for the conduit 61 of the liquid storage bag 6 to lead out; the side wall of the inner cavity 11 has an internal thread 14 near the opening for connecting the pump cover 2. The side wall of the pump body 1 is provided with 100 positioning ...

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Abstract

A microflow perfusion method and its apparatus feature that a hydroscopic expending body in the casing is used to apply a force to a liquid storage bag for pressing it, and the expanding rate of said hydroscopic expending body and in turn the perfusion rate of liquid storage bag can be controlled by the water-sucking tube which has a selective diameter of its internal channel. After said diameter of internal channel, the flow of perfusion is constant.

Description

Technical field [0001] The invention relates to a device for infusing a medium into or onto a human body, especially a device for pressure infusion of medicinal liquid. Background technique [0002] In the medical field, many medicinal liquids need to be continuously infused into or onto the human body. In order to enable the liquid medicine to be infused with a substantially constant flow rate, an effective measure is to use pressure infusion. The pressure infusion pump driven by electric machinery and the pressure infusion pump driven by electric machinery controlled by microprocessor are developing rapidly and their functions are becoming more and more perfect. However, this type of pressure infusion pump is complex in structure and expensive, and is difficult to be popularized widely. Again because weight, volume are bigger, also need to be equipped with power supply, be not easy to carry and use when the patient moves freely. [0003] In order to solve the above-ment...

Claims

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Application Information

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IPC IPC(8): A61M5/142
Inventor 汤志斌
Owner 汤志斌
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