JPS5914858A - Artificial dialyser - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an artificial kidney that completely eliminates the need for a large amount of dialysis fluid, and furthermore achieves miniaturization, light weight, and compactness, and makes the current artificial kidney portable or implantable. Concerning the creation of a dialysis machine.

In recent years, the development of Japanese industry has been remarkable, with research and development in the medical field being the most active and intensifying. Cutting-edge technologies such as CT scans and medical robots (ME) that make full use of electro and mechatronics are now being developed. I don't know where to stop.

However, while this is said to be a disadvantage due to the spectacular competition between cutting-edge technologies such as computer diagnostic equipment, it is now clear that end-of-the-line medical equipment is lagging behind, and countermeasures are becoming an urgent need.

As is well known, the number of patients with such kidney disease is said to be increasing year by year, and is being given preferential treatment, as it is not only chronic patients, but also patients suffering from acute symptoms after surgery, acute drug poisoning, etc.

Normally, kidneys with decreased function use dialysate with finely adjusted salts to circulate blood through the space of the dialysis membrane to remove waste substances and purify the blood, but a large amount of dialysate is required. Therefore, they generally require complex and large auxiliary equipment.

For this reason, patients need to go to the hospital two or three times a week or be hospitalized for treatment for about five hours each time, which is a tremendous amount of work for the sick person, and the problem is that it may hinder their ability to return to society. The financial and physical harm caused by this is an immeasurable loss when you take into account the time loss and round-trip taxi fares, and the negative impact on National Health Insurance funds. As the number of children increases, it has become a major social problem.

In view of these many reasons, the present invention solves the disadvantages at once, and also makes it inexpensive, small, light and compact, and the method of use is simple, making it portable. To provide a portable artificial dialysis machine that can be embedded in a part of the body and is fully compatible with the present invention.

An embodiment of the present invention that achieves the above object will be described with reference to the drawings.

As shown in FIG. 1, a net 6 is attached to the outlet part 5,
Trendy case 1 having a blood inflow lower and an outflow port 8
Inside, a fiber-type highly water-repellent membrane 2 made of capillary tubes is disposed close to the inlet side and a dialysis membrane 3 to the outlet side,
The present invention is constructed by filling the voids with a gel-like substance 4 having hydrophilic properties and a crosslinked structure.

Next, the operation of the portable artificial dialysis machine constructed as described above will be explained.

When performing hemodialysis, blood introduced from the inflow lower at the lower end of the container case 1 is first filtered by the fiber-type high water-repellent membrane 2 as shown in the figure, and then the cross-linked structure 17,
Impurities are adsorbed and decomposed in the gel-like substance 4 in which enzymes and adsorbents have been diffused in advance, and further reabsorbed by the dialysis membrane 3, and only the reliably purified blood is sent out from the outlet 8. This invention has an excellent property that it can be achieved by an extremely simple operation.3 In other words, the present invention uses a reversal flow system in which blood flows in a room under its own surface pressure flow. The purpose is to get as close as possible to related liver functions, and gel-like substances with fresh water properties and crosslinking properties allow water to pass through easily, but do not allow impurities to be removed from the sun. It has the property of being able to separate only contaminated water without passing through the fine net 6, and furthermore, allowing enzymes, adsorbents, etc. to be dispersed and fixed in the space.

First, ultrafiltration with high water removal → decomposition and removal of impurities by the gel layer used as the reaction layer, and generation by reaction → reabsorption by the dialysis membrane. The present invention has a structural mechanism very similar to that of a live kidney, and by eliminating the need for dialysate, it has been successfully made compact and portable, and can be provided at a low price. It can produce unknown effects.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the present invention, with arrows representing blood flow. FIG. 2 shows a cross-sectional view taken along the line A--A in FIG. 1. l-container case, 2-7 eyebar type water removal membrane, 3-dialysis membrane, 4-gel-like substance, 5-exhaust part, 6-net, 7-inlet, 8-outlet, 9-enclosure, l〇-Blood tube. Chin 2 Diagram Armpit 1 Diagram 9

Claims (1)

[Claims] In a dialysis machine with a trendy configuration that has a blood inlet and outlet, and a drainage part as one chamber, a fiber-type high water-repellent membrane is placed on the blood inlet side, and a dialysis membrane is placed close to the same outlet side. An artificial dialysis machine is characterized in that it is formed by filling the voids with a gel-like substance, and that dialysis purification can be achieved between the inflow port and the outflow port by the flow pressure of blood.