Mixed-gas insufflation system

• US 7,938,793 B2
• Filed: 07/08/2009
• Issued: 05/10/2011
• Est. Priority Date: 04/24/2003
• Status: Active Grant

• Current Assignee: Northgate Technologies Incorporated
• Original Assignee: Northgate Technologies Incorporated
• Inventors: Mantell, Robert R.
• Primary Examiner(s): Mendez; Manuel A
• Application Number:
  US12/499,649
• Publication Number:
  US 20090270794A1
• Time in Patent Office: 671 Days
• Field of Search: 12820312-20329, 604 23- 26
• US Class Current: 604/26
• CPC Class Codes: A61M 13/00 Insufflators for therapeutic or disinfectant purposes , i.e. devices for blowing a gas, powder or vapour into the body hand-held units in which gas flow is produced by muscular energy at the moment of use B05B11/062
• CPC Class Codes: A61M 13/003 Blowing gases other than for carrying powders, e.g. for inflating, dilating or rinsing
• CPC Class Codes: A61M 2016/102 Measuring a parameter of the content of the delivered gas
• CPC Class Codes: A61M 2016/1025 the O2 concentration
• CPC Class Codes: A61M 2016/103 the CO2 concentration
• CPC Class Codes: A61M 2202/0007 introduced into the body
• CPC Class Codes: A61M 2202/0208 Oxygen
• CPC Class Codes: A61M 2202/0225 Carbon oxides, e.g. Carbon dioxide
• CPC Class Codes: A61M 2202/025 Helium
• CPC Class Codes: A61M 2202/0275 Nitric oxide [NO]
• CPC Class Codes: A61M 2205/17 with redundant control systems
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/3344 Measuring or controlling pressure at the body treatment site
• CPC Class Codes: A61M 2205/3355 Controlling downstream pump pressure
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/75 with filters
• CPC Class Codes: A61M 2206/14 Static flow deviators in tubes disturbing laminar flow in tubes, e.g. archimedes screws

Abstract

A mixed-gas insufflation system for mixing insufflation gases includes a gas supply providing at least two sources of insufflation gas and a mixer system. The mixer system includes a chamber having at least two inlets and at least one outlet. The at least two inlets of the chamber are in fluid communication with the gas supply. The mixer system mixes the at least two sources of insufflation gas.

Claims

1. A mixed-gas insufflator, comprising:

a housing having at least two inlets for receiving sources of gas;

a tubing system in fluid communication with each inlet;

a mixing chamber internal to the housing and having at least two inlets and at least one outlet, wherein the at least two mixing chamber inlets are in fluid communication with the tubing system and the at least one mixing chamber outlet for providing a gas mixture for introduction into a cavity; and

wherein all gases to be mixed and used to insufflate the cavity pass through the mixing chamber, and wherein the tubing system further comprises a first sensor for sensing whether a predetermined supply of the gas mixture is present and a second sensor for identifying gases comprising the gas mixture to be associated with the tubing system.

2. The mixed-gas insufflator of claim 1, wherein the chamber further comprises at least one baffle.

3. The mixed-gas insufflator of claim 1, wherein the chamber further comprises a plate having a plurality of holes.

4. The mixed-gas insufflator of claim 1, wherein the mixing chamber further comprises a fan.

5. The mixed-gas insufflator of claim 1, wherein the at least two sources of gas are pressurized.

6. The mixed-gas insufflator of claim 1, wherein the at least two sources of gas include oxygen.