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Means for taking blood samples for the diagnosis of bodily functions

  • US 4,657,027 A
  • Filed: 01/24/1985
  • Issued: 04/14/1987
  • Est. Priority Date: 02/04/1984
  • Status: Expired due to Fees
First Claim
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1. A blood sampling means for automatically taking blood samples from a patient and separately storing the blood samples for subsequent analysis, said blood sampling means comprising a catheter for permanent connection to a patient throughout a preselected time period, a flexible pipe means connected to said catheter, a reservoir of inert separating fluid and/or anti-coagulent fluid adapted to be connected to said pipe means, a pump operably connected to said pipe means to withdraw blood samples from said patient through said catheter and fluid from said reservoir and to pump said blood samples and fluid through said pipe means, said pipe means including a flexible container tube for receiving and storing said blood samples and fluid, drum means for mounting said flexible container tube in a coil-configuration, valve means for connecting said fluid container tube alternately to said catheter and to said reservoir for flowing blood samples and portions of said fluid into said fluid container tube, and control means for switching said pump on and off and for operating said valve means to automatically take a plurality of blood samples from said patient at spaced intervals during said time period in accordance with a predetermined programme.

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