Pain comforter system

• US 5,423,748 A
• Filed: 08/16/1993
• Issued: 06/13/1995
• Est. Priority Date: 08/16/1993
• Status: Expired due to Fees

• Current Assignee: Dominic Uhala
• Original Assignee: Dominic Uhala
• Inventors: Uhala, Dominic
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): Bockelman, Mark
• Application Number:
  US08/106,520
• Time in Patent Office: 666 Days
• Field of Search: 604/50, 604/65, 604/66, 604/67, 128/DIG. 13, 128/DIG. 6
• US Class Current: 604/67
• CPC Class Codes: A61M 2005/1405 Patient controlled analgesia [PCA]
• CPC Class Codes: A61M 2230/50 Temperature
• CPC Class Codes: A61M 5/16836 by sensing tissue properties at the infusion site, e.g. for detecting infiltration detecting tissue temperature for diagnostic purposes A61M39/0247
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: Y10S 128/13 Infusion monitoring

Abstract

A pain comforter system for providing pain relieving medication to a patient at a rate which is variable as a function of changes in conditions, this system comprising a line for feeding medication from a source to the patient; a pump to feed the medication; means to sense the conditions of the patient and the medication; and a controller coupled to the sensors adapted to energize and de-energize the pump as a result of the sensed conditions.

Claims

1. A pain comforter system for providing pain relieving medication to a patient at a rate prescribed by a physician and monitored by a computer center but variable by changes in patient temperature and medication concentration, the system comprising, in combination:

a housing containing a supply of medication and removably positionable on a patient'"'"'s appendage;

a line coupled to the housing and the supply of medication at one end and a needle insertable into a patient at the other end;

a perfusion pump within the housing in the line downstream from the supply to feed the medication from the supply to the needle and a flow regulator within the housing in the line downstream from the perfusion pump for sensing the concentration of the medication fed by the pump;

a computer center within the housing coupled to the temperature sensor and flow regulator to monitor the patient temperature and medication concentration, the temperature sensor also coupled to the pump to provide an output for activating and inactivating the pump as a function of the initial setting of the computer center as well as the input from the temperature sensor for feeding fluid to the needle through the flow regulator;

a display coupling the computer center to indicate the sensed conditions of patient temperature and medication concentration;

a power circuit coupled to the computer center under the control of the patient to energize and de-energize the system, the power circuit including an on/off switch, a battery and a power indicator lamp; and

straps attached to the housing and coupling the entire system to an appendage of the patient with the temperature sensor in contact with the patient'"'"'s skin and the needle inserted into the patient'"'"'s skin.