Spirometer and anenometer apparatus

• US 3,924,611 A
• Filed: 05/10/1974
• Issued: 12/09/1975
• Est. Priority Date: 04/06/1973
• Status: Expired due to Term

• Current Assignee: Jury Petrovich Galitsky
• Original Assignee: Jury Petrovich Galitsky
• Inventors: Galitsky, Jury Petrovich
• Primary Examiner(s): Howell, Kyle L.
• Application Number:
  US05/469,028
• Time in Patent Office: 578 Days
• Field of Search: 128/2.08,2.07 73/23R,231R
• US Class Current: 600/539
• CPC Class Codes: A61B 5/09 using an element rotated by the flow toys actuated by air current A63H33/40

Abstract

A spirometer and anemometer apparatus provided with a first chamber for measuring the respiratory rate in communication with a second chamber for measuring the volumes of consumed air. The chamber for measuring the respiratory rate has an inlet opening, an inspiratory valve and an aneroid meter operably connected to an indicating or registering instrument. The chamber for measuring the volume of consumed air has an expiratory valve, an additional or second inspiratory valve and an impeller which is operably connected to an indicating or registering instrument. Mounted in the inlet opening of the chamber for measuring the respiratory rate is an air intake means communicating with an air draw-off pipe, the outlet end of the pipe faces the impeller so that an air jet provided from the air draw-off pipe damps the impeller.

Claims

1. A spirometer and anenometer apparatus comprising wall means providing a first chamber for measuring the respiratory rate;

said first chamber having an inlet opening in its wall means and an opening providing communication between the first chamber and the atmosphere;

an inspiratory valve accommodated in said opening providing communication between said first chamber and the atmosphere;

an aneroid respiratory rate meter in movable connection with said first chamber;

a registering instrument in movable connection with said aneroid respiratory rate meter;

wall means providinig a second chamber for measuring the volume of consumed air;

means providing communication between said first and second chambers;

said second chamber having an outlet opening in its wall means and an opening providing communication between said second chamber and the atmosphere;

an expiratory valve mounted in said outlet opening;

a second inspiratory valve mounted in said opening providing communication between said second chamber and the atmosphere;

a rotatable impeller mounted in said second chamber so that it faces said means providing communication between said first and second chambers and rotated by an air jet flowing from said chamber to said second chamber through said means providing communication between said first and second chambers;

a second registering instrument in movable connection with said impeller to register circular motions of said impeller during exhalation;

means mounted in said inlet opening of said first chamber, said means including a central opening for admitting a portion of the air coming to said inlet opening into said first chamber and a duct surrounding said central opening; and

a draw-off pipe having first and second ends;

said first end being connected with said duct and said second end turned to said impeller so that the air jet passing from said second end exerts a damping action upon said impeller.

2. The spirometer and anemometer apparatus according to claim 1, wherein said second inspiratory valve is provided with an adjusting iris diaphragm.

3. The spirometer and anemometer apparatus according to claim 1 wherein said air draw off pipe is provided with an adjusting throttle.

4. The spirometer and anemometer apparatus according to claim 2, wherein said air draw-off pipe is provided with an adjusting throttle.