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Fluid-balancing liquid-supplying device and its application

A liquid balance and liquid supply technology, applied in blood filtration, suction devices, dialysis systems, etc., can solve the problems of unbalanced replacement fluid, potential safety hazards of balanced liquid supply devices, etc., to maintain weight stability, avoid medical accidents, and save production costs. Effect

Active Publication Date: 2008-12-24
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The balanced liquid supply related structure adopted by the existing hemodialysis / filtration equipment is mainly to install liquid pumps at the end of the dialyzer or filter respectively, and the two liquid pumps work separately and independently under the control of the control device to ensure that the replacement fluid enters and exits the dialysis The balance of the filter or filter; if there is a deviation in the in-out volume of the replacement fluid, the in-out volume can be rebalanced by adjusting the working speed of the two liquid pumps through the control device; this balance liquid supply device can realize the balance adjustment of the replacement fluid, But there are also obvious disadvantages: since two pumps are respectively set up to carry out the balanced delivery of the replacement fluid, and these two pumps operate independently, so to ensure the delivery balance, the control device needs to have better control accuracy, which will affect the equipment. Higher requirements are put forward; more importantly, if one of the two pumps has a problem and stops working, while the other continues to run to deliver the replacement fluid, the replacement fluid will be unbalanced and serious medical accidents will occur, so this kind of There are obvious safety hazards in the balanced liquid supply device

Method used

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  • Fluid-balancing liquid-supplying device and its application
  • Fluid-balancing liquid-supplying device and its application
  • Fluid-balancing liquid-supplying device and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0025] figure 1 Shows the specific structure of the hemofiltration device using the present invention, by figure 1 It can be seen that the hemofiltration device includes a blood circuit and a balanced liquid supply circuit. The blood circuit is composed of a blood pump 1, a heparin pump 2, an arterial jug 3, a dialyzer 4, a venous jug 5, a choke clamp 6, an air detector 7 and other components; the balanced liquid supply circuit includes a balance scale 8, The eccentric wheel structure adjustment part 9, the synchronous double-tube pump 10, the replacement liquid bag 11 and the waste liquid bag 12 are hung on the balance scale 8 together, and the replacement liquid bag 11 passes through the replacement liquid connecting pipe 13 through the eccentric wheel structure adjustment part After 9, it is connected to a channel of the synchronous double-tube pump 10, and then connected to the arterial jug 3 through this channel. The wheel structure regulator 9 is then connected with th...

Embodiment 2

[0028] image 3 Shows the specific structure of the hemofiltration device using another structure of the liquid balance liquid supply device, by image 3 It can be seen that the hemodialysis equipment includes a blood circuit and a balanced liquid supply circuit, which are the same as those in Embodiment 1 except for the following features: wherein the delivery regulator is a solenoid valve pipe clamp structure regulator 18, specifically structured as Figure 4 Shown, comprise movable suction block 18-1, spring 18-2, electromagnet 18-3, pressure tube plate 18-4, pressure tube device body 18-5, connecting shaft 18-6, control circuit (not shown in the figure Out), the electromagnet 18-3 and the pressure tube body 18-5 are fixedly arranged, the movable suction block 18-1 is connected to one end of the connecting shaft 18-6 passing through the electromagnet, and the other end of the connecting shaft 18-6 One end passes through the tube crimping body 18-5 and is fixedly connected...

Embodiment 3

[0031] Figure 5 It shows the specific structure of using the liquid balance liquid supply device in combination with the hemodialysis machine, which is the same as Embodiment 1 except the following features: the liquid balance liquid supply device and the dialysate circuit of the hemodialysis machine (abbreviated as "waterway") ) 19, connected to each other, mainly connecting the waste liquid connecting pipe 14 between the dialyzer 4 and the waterway connection of the hemodialysis machine, the waste liquid connecting pipe 14 draws the waste liquid back to the balance scale 8, and connects the blood The water circuit of the dialysis machine is equipped with an ultrafiltration pump (not shown in the figure), and the ultrafiltration pump can be used to perform ultrafiltration from the blood circuit to realize the ultrafiltration function of removing excess water from the human body.

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Abstract

A liquid-balanced liquid supply apparatus for blood dialysis and blood filter is composed of the balancing scales, the displacing liquid container and waste liquid container on said balancing scales, a synchronous dual-pipe pump as the liquid conveying unit communicated to said both container respectively via tubes, and the conveying regulator connected to said liquid conveying unit.

Description

technical field [0001] The invention relates to continuous arteriovenous hemodialysis / filtration equipment, in particular to a liquid balance liquid supply device and its application. Background technique [0002] Continuous arterial-venous hemodialysis / filtration is a blood purification therapy that continuously replaces damaged kidney function, and it is a treatment method to achieve hemofiltration on the basis of hemodialysis. [0003] Hemodialysis treatment is to pass blood through a dialyzer made of semipermeable membranes that can only allow small molecule substances (such as electrolytes, small molecule nephrotoxins, etc.), so that the blood is on one side of the membrane, and the replacement fluid is on the other side of the membrane. On the other side, the solutions on both sides go through diffusion and osmosis, that is, the solute permeates from the side with high concentration to the side with low concentration, allowing medium and small molecular toxins in the b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/14A61M1/34A61M1/00
Inventor 尹良红云大信
Owner JINAN UNIVERSITY
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