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Infant incubator with air curtain

  • US 4,936,824 A
  • Filed: 05/15/1987
  • Issued: 06/26/1990
  • Est. Priority Date: 05/15/1987
  • Status: Expired due to Term
First Claim
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1. An infant incubator having a front and a rear for containing an infant comprising:

  • a base section having an infant support adapted to underlie and support an infant;

    a hood mounted to said base section and having double walls, spaced apart, covering the infant;

    said hood forming a continuous flow path between said double walls for circulating air from the front of said incubator to the rear of said incubator around the sides of the infant;

    means to mount said hood to said base section to allow opening and closing of said hood to access the infant contained within said hood;

    heating and ducting means in said base section, said heating and ducting means having an outlet at the front of said incubator for introducing heated air into the flow path formed by said double walls of said hood and having an inlet at the rear of said incubator for receiving air after circulating through said flow path, said heating and ducting means further including a blower to force said heated air from said outlet into said flow path at a positive pressure and to induce said air from said flow path through said inlet at a negative pressure;

    a double wall access door in said hood having an open position affording access to the patient and a closed position wherein said access door receives the heated air from said heating and ducting outlet to pass through said double walls to form a part of the flow path for the heated air;

    said access door being pivotally mounted to said base section about a point offset to said outlet to become removed from the normal flow path of heated air from said outlet when said access door is in its open position such that the flow path continues from said outlet under positive pressure across the opening occupied by said door in its closed position and induced into the flow path in said double wall hood to form an air curtain thereacross and then continues along the flow path formed by said double wall hood.

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