Respiratory flow sensor
First Claim
Patent Images
1. A respiratory flow sensor, comprising:
- a tubular housing; and
a measuring insert formed of a high-temperature plastic that can be inserted into said tubular housing, said measuring insert having at least one hot wire, said measuring insert being fastened replaceably in said tubular housing via a snap connection.
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Abstract
An improved respiratory flow sensor with a tubular housing (1) in the form of a venturi tube and with a measuring insert (5) that can be inserted into same with at least one hot wire (2, 3). The tube and insert are components of long durability which can be autoclaved and consequently reused. The measuring insert (5) is replaceable fastened in the housing (1) by means of a snap connection and is formed of a high-temperature plastic that can be autoclaved by use of hot steam.
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Citations
13 Claims
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1. A respiratory flow sensor, comprising:
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a tubular housing; and
a measuring insert formed of a high-temperature plastic that can be inserted into said tubular housing, said measuring insert having at least one hot wire, said measuring insert being fastened replaceably in said tubular housing via a snap connection. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A respiratory flow sensor, comprising a tubular housing and a measuring insert that can be inserted into said tubular housing with at least one the hot wire wherein the measuring insert is replaceably fastened in the housing by means of a snap connection, the measuring insert being formed of one of the materials polysulfone (PSU), polyphenyl sulfone (PPSU) or polyamide.
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8. A method of using a respiratory flow sensor, the method comprising the steps of:
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providing a tubular housing; and
providing a measuring insert formed of a high-temperature plastic, said measuring insert having at least one hot wire;
inserting the measuring insert into said tubular housing;
fastening the measuring insert replaceably in the tubular housing via a snap connection; and
connecting the respiratory flow sensor to a respirator or anesthesia apparatus. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification