System and apparatus for the patient-controlled delivery of...

Details System and apparatus for the patient-controlled delivery of... System and apparatus for the patient-controlled delivery of...

A - Human Necessities

61

M

128/80

A61M 5/00 (2006.01) A61M 5/142 (2006.01) A61M 5/14 (2006.01)

Patent

CA 1303928

SYSTEM AND APPARATUS FOR THE PATIENT-CONTROLLED DELIVERY OF A BENEFICIAL AGENT, AND SET THEREFOR Abstract of the Disclosure An apparatus (60) and system (20) are disclosed for the patient-controlled delivery of an analgesic or other beneficial agent 142, while preventing administration of a toxic quantity of the beneficial agent. The invention permits delivery of fractional doses to a patient in quantities which are directly proportional to the time period since the last dose or fraction thereof was delivered to the patient. In the preferred embodiments the apparatus includes a housing (58) including a casing (88) and a back plate (86), the housing containing a control switch (84) for opening and closing downstream conduit (62) and for depressing a floating plate (100) that thereby compresses a dose reservoir (90) with the beneficial agent (142) therein. A spring (124) biases the control switch (84).

515349

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