Apparatus for peritoneal dialysis
First Claim
1. A peritoneal dialysis apparatus comprising:
- at least one dialyzer with a membrane dividing a space therein into first and second chambers,a single lumen catheter,a first circuit joining the said first chamber with said catheter,a second circuit,means for preparing dialysis liquid and joined with said second chamber via said second circuit,at least one pump in each of said first and second circuits,supply and outlet ducts,a dialysis filter joined with said supply and outlet ducts and having first and second chambers therein and so placed in said first circuit that with said supply duct and said outlet duct and the first chamber of the dialyzer the first chamber of the dialysis filter forms a closed circuit,a connection duct joining said second chamber of said dialysis filter with said catheter,a first pump placed in said supply duct,a second pump placed in said outlet duct,and a storage vessel joined with same at a point downstream from said second pump.
1 Assignment
0 Petitions
Accused Products
Abstract
A peritoneal dialysis apparatus comprises a single lumen catheter through which in an intermittently operated circuit dialysis liquid is pumped from the peritoneal cavity of a patient and is then moved along in contact with a dialysis membrane, at which not only mass exchange but furthermore the withdrawal of ultrafiltrate is able to take place. On this membrane of the dialyzer a secondary dialysis takes place so that on the other side of the membrane dialysis liquid with an osmotically acting substance is moved in single-pass mode. Preferably the peritoneal dialysis circuit is made up of two dialyzers so placed that the one outlet of the first one is joined with a conventional dialysis apparatus and the outlet of the second dialyzer is joined with the catheter in the patient.
269 Citations
29 Claims
-
1. A peritoneal dialysis apparatus comprising:
-
at least one dialyzer with a membrane dividing a space therein into first and second chambers, a single lumen catheter, a first circuit joining the said first chamber with said catheter, a second circuit, means for preparing dialysis liquid and joined with said second chamber via said second circuit, at least one pump in each of said first and second circuits, supply and outlet ducts, a dialysis filter joined with said supply and outlet ducts and having first and second chambers therein and so placed in said first circuit that with said supply duct and said outlet duct and the first chamber of the dialyzer the first chamber of the dialysis filter forms a closed circuit, a connection duct joining said second chamber of said dialysis filter with said catheter, a first pump placed in said supply duct, a second pump placed in said outlet duct, and a storage vessel joined with same at a point downstream from said second pump. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A peritoneal dialysis apparatus comprising:
-
at least one dialyzer with a membrane dividing a space therein into a first chamber and a second chamber, said first chamber being in a first circuit connected with a single lumen catheter means and a storage means and comprising a means for supplying a dialysis fluid, and said second chamber being connected via a second circuit with a means for preparing said dialysis fluid, said second circuit comprising pump means and a dialysis filter divided by a membrane into a first chamber and a second chamber, said first chamber of said dialysis filter being in said first circuit, and said second chamber of said dialysis filter being connected with said catheter means. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
-
Specification