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Peritoneal dialysis apparatus

  • US 4,240,408 A
  • Filed: 12/04/1978
  • Issued: 12/23/1980
  • Est. Priority Date: 12/10/1977
  • Status: Expired due to Term
First Claim
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1. A method for the periodic rinsing of the abdominal cavity of a patient, comprising the following steps:

  • (a) supporting a filling vessel (4) and a discharge vessel (11) at opposite ends of a comparing balancing means;

    (b) operatively connecting both vessels through first and second valves (5,

         8) to said abdominal cavity;

    (c) filling said filling vessel while said first valve is closed;

    (c) opening the first valve (5) for emptying the filling vessel (4) through said first valve (5) into said abdominal cavity;

    (e) closing the first valve (5), opening the second valve (8) and draining the abdominal cavity into said discharge vessel (11) while simultaneously refilling said filling vessel (4);

    (f) closing the second valve (8) in response to a balanced condition as sensed from said comparing balancing means when the filling vessel and the discharge vessel hold the same quantity of liquid;

    (g) continuing the draining into a measuring vessel; and

    (h) emptying the discharge vessel, wherein said measuring vessel provides a measure for any liquid excess being drained from said cavity in addition to the liquid supplied through said filling vessel.

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