David G Jamison

US Patent:

6863068, Mar 8, 2005

Filed:

Jul 25, 2002

Appl. No.:

10/202952

Inventors:

David Thomas Jamison - Quakertown PA, US
Mark J. Maritch - Bethlehem PA, US

Assignee:

Draeger Medical, Inc. - Telford PA

International Classification:

A61M016/00

US Classification:

12820423, 12820421, 12820523

Abstract:

A ventilation sound detection system includes an audible display that emits a series of sounds based upon information provided by a ventilator. In particular, there are two different sound patterns emitted by the system. One sound represents inspiration and the other sound represents expiration. The inspiration sound is enunciated when monitored breathing pressure crosses a threshold level, thereby communicating to an anesthesiologist/clinician that a significant pressure has been developed in the breathing circuit (e. g. , a proper inspiration breath has been taken by the patient). The exhalation sound is enunciated when the rising edge of a valid CObreath has been returned to the breathing circuit (e. g. , a proper exhalation breath has been made). Accordingly, the system provides the anesthesiologist/clinician with a new way of verifying that the patient is being properly ventilated.

US Patent:

20100175695, Jul 15, 2010

Filed:

Jan 12, 2009

Appl. No.:

12/352480

Inventors:

David T. Jamison - Quakertown PA, US

Assignee:

MINDRAY DS USA, INC. - Mahwah NJ

International Classification:

A61M 16/12

US Classification:

12820314

Abstract:

An anesthesia system includes a main output and an auxiliary output. The main output and the auxiliary output are configured to operate independently of each other. The main output may provide a first mixture of gases and an anesthetic agent to a patient. The auxiliary output may provide a second mixture of gases to the patient. A user may selectively mix oxygen and at least one other gas such that the second mixture of gases is provided to the auxiliary output at a desired flow rate and such that the second mixture of gases includes a desired oxygen percentage level. The second mixture of gases provided through the auxiliary output is prevented from flowing back into the anesthesia system to reduce or prevent contamination of the gases provided through the main output.