Method of forming body fluid purification cassette

Abstract

It is intended to provide a molding method whereby a body fluid purification cassette having a minimized size can be formed at a low cost. A body fluid purification cassette (U1), which is mounted toa body fluid purification apparatus body in a detachable manner, is composed of synthetic resin housings (F1, F2), fundamental elements (R1, 1, PT1) to be enclosed in the housings, selected element(s)(2) that are selected as necessary from among body fluid purification elements such as a dialyzer (2), a plasma exchange module and an immunoadsorption column, and body fluid channels (R1 to R7) connecting the fundamental elements to the selected element(s). The housings (F1, F2) and the body fluid channels (R1 to R7) are molded by the primary molding so that the halved cross section has a definite shape. Then, the halved constructs are integrated together by the secondary molding to give a cassette. In the step of integrating the body fluid channels in the halved constructs via the secondarymolding, the fundamental elements (R1, 1, PT1) and the selected element (2) are liquid-tightly connected to the body fluid channels (R1 to R7).

Description

technical field [0001] The present invention relates to a method for forming a body fluid purification box, which is provided with a bubble detector for detecting air bubbles in the flow path, a pressure detector for detecting the pressure of the body fluid in the flow path, a dialysate supply device, a heater, In the main body of the body fluid purification device such as a thermometer, a conductivity meter, at least one pump rotor of a roller pump, a control device, etc., a body fluid purification box is selectively installed. The basic components composed of pumping tubes; necessary components selected from body fluid purification components such as dialyzers, hemofilters, precision filters, screen filters, plasma exchange components, and immunoadsorption cartridges; the above basic The body fluid flow path connecting the element and the selection element is formed by cooperating with the pump rotor of the body fluid purification device body and the pumping liquid pipe of t...

AI Technical Summary

Problems solved by technology

For example, in order to deal with multiple patients with different diseases, it is necessary to install various multiple body fluid treatment devices, so there is a disadvantage of high cost.

Moreover, for example, although the number of patients requiring blood dialysis and the number of patients requiring blood purification are not necessarily the same, two types of body fluid treatment devices must be installed, that is, the frequency of use is different, and a body fl...

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