Anesthetic laryngoscope with manual controlled oxygen ejection means

• US 6,106,458 A
• Filed: 11/04/1998
• Issued: 08/22/2000
• Est. Priority Date: 05/06/1996
• Status: Expired due to Fees

• Current Assignee: Da Ha
• Original Assignee: Da Ha
• Inventors: Ha, Da
• Primary Examiner(s): Peffley, Michael
• Assistant Examiner(s): BLAISE, BRADFORD CHRISTOPHER
• Application Number:
  US09/180,174
• Time in Patent Office: 657 Days
• Field of Search: 600/120, 600/131, 600/185, 600/187, 600/190, 600/193, 600/194, 600/196, 600/197, 600/199, 600/237
• US Class Current: 600/187
• CPC Class Codes: A61B 1/00068 Valve switch arrangements
• CPC Class Codes: A61B 1/00091 Nozzles
• CPC Class Codes: A61B 1/015 Control of fluid supply or evacuation
• CPC Class Codes: A61B 1/0684 using light emitting diodes [LED]
• CPC Class Codes: A61B 1/267 for the respiratory tract, e.g. laryngoscopes, bronchoscopes

Abstract

An anesthetic laryngoscope for manual oxygen jet-ventilation, including a handle with a handle housing having a lower end, a first oxygen supply tube, and a battery container mounted in the handle housing. A blade having an observation light and a second oxygen supply tube mounted thereon is mounted on the lower end of the handle means. The first oxygen supply tube is connected to the second oxygen supply tube, and a manual oxygen on/off valve is provided on one of the first and second oxygen supply tubes. Preferably, the manual oxygen on/off valve is a manually controlled two-position, two-way valve to enable generation of a pulsing supply of oxygen through an ejector nozzle at the end of the second oxygen supply tube.

Claims

1. An anesthetic laryngoscope for manual oxygen jet-ventilation, comprising:

handle means including a handle housing having a lower end, a first oxygen supply tube, and a battery container mounted in said handle housing; and

blade means on the lower end of said handle means and having an observation light and a second oxygen supply tube mounted thereon;

wherein said first oxygen supply tube is connected to said second oxygen supply tube, and a manual oxygen on/off valve is provided on one of said first and second oxygen supply tubes.

2. The anesthetic laryngoscope of claim 1, wherein said manual oxygen on/off valve is provided on said first oxygen supply tube.

3. The anesthetic laryngoscope of claim 1, wherein said manual oxygen on/off valve provided on one of said first and second oxygen supply tubes is a manually controlled two-position, two-way valve.

4. The anesthetic laryngoscope of claim 1, wherein said second oxygen supply tube provided on said blade means has a diameter in the range of from about 1 mm to 2 mm, and including an ejector nozzle on said second oxygen supply tube for ejecting oxygen flow, said ejector nozzle being slightly converged and positioned in a range of about 1 mm to about 2.5 cm away from a tip of said blade means, said ejector nozzle having a diameter in a range of from about 0.6 mm to 0.8 mm.

5. The anesthetic laryngoscope of claim 2, including guiding means for positioning said manual oxygen on/off valve in a transverse direction, said guiding means being provided on an outer wall of said battery container.