Portable pressure transducer, pneumotach for use therewith, and associated methods
First Claim
1. An airway adapter, comprising:
- a first housing having a first end configured to be coupled to a respiratory conduit and a second end configured to be coupled to the respiratory conduit;
a primary conduit defined in the first housing and including a flow restricting portion, wherein the primary conduit includes an inlet at the first end of the first housing and an outlet at the second end of the first housing;
a first pressure port defined in a sidewall of the first housing between the first end and the second end, wherein the first pressure port is in fluid communication with the primary conduit on a first side of the flow restricting portion;
a second pressure port defined in the sidewall of the first housing, wherein the second pressure port is in fluid communication with the primary conduit on a second side of the flow restricting portion; and
a pressure transducer coupling portion disposed on the first housing and configured to selectively and removably engage a second housing of a pressure transducer.
2 Assignments
0 Petitions
Accused Products
Abstract
A system for sensing respiratory pressure includes a portable pressure transducer configured to be carried by or proximate to a respiratory conduit, such as a breathing circuit or a nasal canula. The portable pressure transducer may removably couple with a pneumotach, in the form of an airway adapter, disposed along the respiratory conduit. The pneumotach may include two pressure ports positioned at opposite sides of an obstruction, which partially blocks flow through a primary conduit of the pneumotach. Corresponding sample conduits of the portable pressure transducer removably couple with the pressure ports. The pressure ports may have sealing elements which are configured to seal against piercing members of the sample conduits upon introduction of the piercing members therethrough. Upon removal of the piercing members, the sealing elements substantially reseal. Methods for using the system are also disclosed.
28 Citations
15 Claims
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1. An airway adapter, comprising:
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a first housing having a first end configured to be coupled to a respiratory conduit and a second end configured to be coupled to the respiratory conduit; a primary conduit defined in the first housing and including a flow restricting portion, wherein the primary conduit includes an inlet at the first end of the first housing and an outlet at the second end of the first housing; a first pressure port defined in a sidewall of the first housing between the first end and the second end, wherein the first pressure port is in fluid communication with the primary conduit on a first side of the flow restricting portion; a second pressure port defined in the sidewall of the first housing, wherein the second pressure port is in fluid communication with the primary conduit on a second side of the flow restricting portion; and a pressure transducer coupling portion disposed on the first housing and configured to selectively and removably engage a second housing of a pressure transducer. - View Dependent Claims (2, 3, 4, 5)
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6. A pressure transducer comprising:
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(a) a transducer housing; (b) a coupling portion disposed on the transducer housing and configured to selectively and removably attach to a pneumotach housing; (c) a first pressure sensor disposed in the transducer housing, wherein the first pressure sensor outputs a signal indicative of a pressure monitored by the pressure sensor; (d) a first sample conduit that includes (1) a first portion disposed in the transducer housing and coupled to the first pressure sensor and (2) a second portion adapted to cooperate with a first pressure port on a pneumotach responsive to the transducer housing being coupled to such a pneumotach housing; and (e) a second sample conduit that includes (1) a first portion disposed in the transducer housing and coupled to the first pressure sensor and (2) a second portion adapted to cooperate with a second pressure port on a pneumotach responsive to the transducer housing being coupled to such a pneumotach housing. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. An airway adapter comprising:
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a first housing having a first end configured to be coupled to a respiratory conduit and a second end configured to be coupled to the respiratory conduit; a primary conduit defined in the first housing and including a flow restricting portion; a first pressure port defined in the first housing in fluid communication with the primary conduit on a first side of the flow restricting portion; a second pressure port defined in the first housing in fluid communication with the primary conduit on a second side of the flow restricting portion; and a pressure transducer coupling portion disposed on the first housing and configured to selectively and removably engage a second housing of a pressure transducer, wherein the pressure transducer coupling portion defines a seating element that properly orients a complementarily configured transducer responsive to the transducer being coupled to the airway adapter.
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Specification