Conveniently hand held self-contained electronic manometer and pressure modulating device

• US 4,872,483 A
• Filed: 12/31/1987
• Issued: 10/10/1989
• Est. Priority Date: 12/31/1987
• Status: Expired due to Term

• Current Assignee: International Medical Products, Inc. (Guardian Insurance & Financial Services, Inc.)
• Original Assignee: International Medical Products, Inc. (Guardian Insurance & Financial Services, Inc.)
• Inventors: Shah, Nyan S.
• Primary Examiner(s): RIVELL, JOHN A
• Application Number:
  US07/140,121
• Time in Patent Office: 649 Days
• Field of Search: 137/557, 251/367, 73/753, 73/708, 116/266, 116/DIG. 17, 128/207.15, 604/97, 604/99, 604/100
• US Class Current: 137/557
• CPC Class Codes: A61M 16/044 External cuff pressure control or supply, e.g. synchronisation with respiration
• CPC Class Codes: A61M 2016/0027 pressure meter
• CPC Class Codes: Y10T 137/8326 Fluid pressure responsive indicator, recorder or alarm

Abstract

A conveniently hand held self-contained electronic manometer assembly small enough to be held in the palm of one hand comprises a structure having a pressure sensor arranged to be exposed to a site at which there is pressure to be monitored, and an electronic system carried by the structure translates pressure sensed by the sensor into a digital display carried by the structure. The structure may also carry a pressure modulating device such as a digital pump and pressure relief valve or a syringe arrangement.

Claims

1. An electronic manometer assembly for use in monitoring pressure at a site in the body of a patient comprising:

a numerical read-out unit having a size adapted to be conveniently held in the palm of the hand of a user, said numerical read-out unit having an output passage therein;

manually digitally operable pump means contained in said numerical read-out unit in fluid communication with said output passage for generating a pressure head;

delivery means in fluid communication with said output passage and adapted for insertion in a patient for delivering said pressure head from said output passage to said site in said patient said delivery means terminating in an enclosed, inflatable cuff;

electronic pressure transducer means in said numerical read-out unit in fluid communication with said output passage for generating an electrical signal corresponding to the pressure in said cuff of said delivery means;

electronic display means in said numerical read-out unit electrically connected to said transducer means for visually displaying a number corresponding to said electrical signal and thus to said pressure in said cuff of said delivery means; and

power supply means contained within said numerical read-out unit and electronically connected to said electronic pressure transducer means and to said electronic display means for supplying electrical power thereto.

2. An electronic manometer assembly as claimed in claim 1 further comprising:

a one-way check valve disposed in said electronic read-out unit between said manually digitally operable pump means and said output passage which permits delivery of said pressure head from said manually digitally operable pump means through said output passage to said delivery means.

3. An electronic manometer assembly as claimed in claim 1 further comprising:

a manually digitally operable pressure relief valve disposed in said read-out unit in fluid communication with said output passage which, upon actuation, opens said output passage to the atmosphere to permit deflation of said cuff.

4. An electronic manometer assembly as claimed in claim 1 further comprising:

a table attached to an exterior of said numerical read-out unit for converting between pressure measured in centimeters of H₂ O and millimeters of Hg.

5. An electronic manometer assembly for use in monitoring pressure at a site in the body of a patient comprising:

a manifold unit having a passage therein adapted for connection to a manually operable external means for generating a pressure head;

delivery means in fluid communication with said passage in said manifold unit and adapted for insertion in a patient for deliverying said pressure head from said passage to said site in said patient, said delivery means terminating in a enclosed, inflatable cuff;

electronic pressure transducer means in said manifold unit in fluid communication with said passage for generating an electrical signal corresponding to the pressure in said cuff of delivery means;

an electronics unit having an electronic numerical display for visually displaying a number corresponding to said electrical signal from said electronic pressure transducer and thus to said pressure in said cuff of said delivery means;

an electrical power source in said electronical unit; and

means for mechanically and electrically connecting said electronic unit and said manifold unit with said electronic pressure transducer being electrically connected to said power source and to said numerical display means, said electronic unit and said manifold unit, when connected, having a size adapted to be conveniently held in the palm of the hand of a user.

6. An electronic manometer assembly as claimed in claim 5, wherein said passage in said manifold unit is adapted to receive a syringe as said manually operable external means for generating a pressure head.

7. An electronic manometer assembly as claimed in claim 5, wherein said means for mechanically and electrically connecting said manifold unit and said electronic unit comprises a plurality of contact prongs of said electronic pressure transducer means, and a like plurality of receptacles for said prongs in said electronic unit.