Filter interface for multimodal surgical gas delivery system

• US 9,067,030 B2
• Filed: 04/15/2013
• Issued: 06/30/2015
• Est. Priority Date: 09/20/2010
• Status: Active Grant

• Current Assignee: Surgiquest, Inc. (Jefferies Financial Group, Inc.)
• Original Assignee: Surgiquest, Inc. (Jefferies Financial Group, Inc.)
• Inventors: Stearns, Ralph, Feldman, Dennis, Tang, Raymond Yue-Sing
• Primary Examiner(s): HAYMAN, IMANI N
• Application Number:
  US13/862,851
• Publication Number:
  US 20130231606A1
• Time in Patent Office: 806 Days
• Field of Search: 604/21, 604/24, 604/26, 604/27, 604/164.01, 604/167.01, 604/65, 604/67
• US Class Current: 1/1
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/3474 Insufflating needles, e.g. Veress needles
• CPC Class Codes: A61B 2017/00221 with wireless transmission of data, e.g. by infrared radiation or radiowaves
• CPC Class Codes: A61B 2017/00225 Systems for controlling multiple different instruments, e.g. microsurgical systems
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 2218/008 for smoke evacuation
• CPC Class Codes: A61B 90/98 using electromagnetic means, e.g. transponders
• CPC Class Codes: A61M 1/74 Suction control underwater drainage A61M1/61
• 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 13/006 with gas recirculation
• CPC Class Codes: A61M 2205/123 with incorporated reservoirs
• CPC Class Codes: A61M 2205/125 with incorporated filters
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/276 preventing unwanted use
• CPC Class Codes: A61M 2205/33 Controlling, regulating or measuring
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 2205/3379 Masses, volumes, levels of fluids in reservoirs, flow rates
• CPC Class Codes: A61M 2205/3382 Upper level detectors
• CPC Class Codes: A61M 2205/70 with testing or calibration facilities
• CPC Class Codes: A61M 2205/75 : with filters
• CPC Class Codes: B01D 46/0008 : Two or more filter elements not fluidly connected positioned in the same housing
• CPC Class Codes: B01D 46/4254 : Allowing or improving visual supervision, e.g. lamps, transparent parts, windows

Abstract

A surgical gas delivery system is disclosed that includes a device housing supporting a control unit and a filter interface having a seat for receiving a filter cartridge, the filter cartridge having a filter housing defining an interior reservoir, wherein sensors are coupled to the control unit for sensing a level of liquid within the reservoir of the filter cartridge to prevent contamination of the device, and wherein a set of blocking valves are provided in the device housing for interacting with the filter cartridge when it is received in the filter interface to control flow through suction and pressure lines of the device, and wherein the control unit is adapted to recognize a characteristic of the filter cartridge received in the filter interface.

Claims

1. A surgical gas delivery system comprising:

a) a device housing supporting a computer-controlled control unit and a filter interface having a filter cartridge receiving seat;

b) a filter cartridge having a filter housing defining an interior reservoir, a pair of optical prisms formed integral with the housing and located within the reservoir for sensing a level of liquid within the reservoir, wherein the pair of optical prisms includes a first prism defining a first set point level and a second prism defining a second set point; and

c) a pair of sensors coupled to the control unit for sensing a level of liquid wherein the reservoir of the filter cartridge to prevent fluid contamination of the device housing, wherein an outer surface of the filter housing located proximate the location of the optical prisms is in optical communication with the pair of sensors when the filter cartridge is received by and seated within the filter cartridge receiving seat of the filter interface.

2. The surgical gas delivery system as recited in claim 1, wherein the pair of sensors includes a first sensor adapted and configured to detect a first liquid level within the reservoir and a second sensor adapted and configured to detect a second liquid level within the reservoir.

3. The surgical gas delivery system as recited in claim 2, wherein each sensor of the pair of sensors is a reflective sensor with an integrated infrared emitter and photodiode.

4. The surgical gas delivery system as recited in claim 1, wherein the control unit is adapted and configured to provide a warning indicating that a liquid level within the reservoir has reached the first set point level.

5. The surgical gas delivery system as recited in claim 1, wherein the control unit is adapted and configured to shut down a compressor within the device housing when a liquid level within the reservoir has reached the second set point level.