Means for taking blood samples for the diagnosis of bodily functions
First Claim
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.
3 Assignments
0 Petitions
Accused Products
Abstract
For diagnosing bodily functions of a patient by analyzing individual, samples several blood samples are taken from the patient automatically in sequence at predetermined time intervals, collected together separately from one another, retained until the completion of all the samples, and then analyzed. The blood samples are fed into a single collecting container one after another in time sequence with the aid of a control valve and are held separated from one another by the introduction of a separating medium between them or they are fed individually in sequence into separate containers. An anti-coagulant prevents the blood samples coagulating before analysis, and so the patient can wear the apparatus for taking the blood samples and can move about and behave normally throughout the sampling sequence.
102 Citations
15 Claims
- 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.
Specification