Filter interface for multimodal surgical gas delivery system

• US 9,950,127 B2
• Filed: 03/31/2015
• Issued: 04/24/2018
• 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 Y.
• Primary Examiner(s): HAYMAN, IMANI N
• Application Number:
  US14/674,835
• Publication Number:
  US 20150202391A1
• Time in Patent Office: 1,120 Days
• 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 device configured for insufflation and smoke evacuation through a gas sealed trocar having a recirculation chamber therein, the device comprising:

a device housing communicating with a patient'"'"'s abdominal cavity through a gas circuit that includes a recirculation chamber of a gas sealed trocar and a compressor for circulating gas to and from the recirculation chamber of the trocar, the device housing supporting a computer-controlled control unit having an oxygen gas sensor for monitoring oxygen gas concentration in the gas circuit, wherein the oxygen gas concentration in the recirculation chamber of the trocar is in direct correlation to carbon dioxide gas concentration within the patient'"'"'s abdominal cavity, wherein the control unit maintains the carbon dioxide gas concentration in the abdominal cavity within a predetermined range based on the oxygen gas concentration in the recirculation chamber of the trocar, and increases an insufflation flow rate to the abdominal cavity through the trocar if the carbon dioxide gas concentration in the abdominal cavity falls below a predetermined level as a result of leakage, by controlling the operation of the compressor, and wherein the insufflation flow rate will not be lower than a smoke evacuation level, wherein the gas circuit that includes the recirculation chamber includes a pressure line and a suction line connected by the compressor for circulating gas, wherein the oxygen gas sensor is in the gas circuit downstream of where the suction line connects through a filter interface and filter cartridge to the recirculation chamber and/or wherein the oxygen gas sensor is in the gas circuit upstream of where the pressure line connects through the filter interface and filter cartridge to the recirculation chamber.

2. A surgical gas delivery device configured for insufflation and smoke evacuation through a gas sealed trocar having a recirculation chamber therein, the device comprising:

a device housing communicating with a patient'"'"'s abdominal cavity through a gas circuit that includes a recirculation chamber of a gas sealed trocar and a compressor for circulating gas to and from the recirculation chamber of the trocar, the device housing supporting a gas composition unit having an oxygen gas sensor for monitoring oxygen gas concentration in the recirculation chamber of the trocar and a flow regulator communicating with the compressor for controlling an insufflation flow rate to the patient'"'"'s abdominal cavity through the trocar based upon the oxygen gas concentration in the recirculation chamber of the trocar, wherein the insufflation flow rate will not be lower than a selected smoke evacuation level, wherein the gas circuit that includes the recirculation chamber includes a pressure line and a suction line connected by the compressor for circulating gas, wherein the oxygen gas sensor is in the gas circuit downstream of where the suction line connects through a filter interface and filter cartridge to the recirculation chamber and/or wherein the oxygen gas sensor is in the gas circuit upstream of where the pressure line connects through the filter interface and filter cartridge to the recirculation chamber.

3. A surgical gas delivery device configured for insufflation and smoke evacuation through a gas sealed trocar having a recirculation chamber therein, the device comprising:

a device housing communicating with a patient'"'"'s abdominal cavity through a gas circuit that includes a recirculation chamber of a gas sealed trocar and a compressor for circulating gas to and from the recirculation chamber of the trocar, the device housing supporting a computer-controlled control unit having an oxygen gas sensor for monitoring oxygen gas concentration in the gas circuit, wherein the oxygen gas concentration in the recirculation chamber of the trocar is in direct correlation to carbon dioxide gas concentration within the patient'"'"'s abdominal cavity, wherein the control unit maintains the carbon dioxide gas concentration in the abdominal cavity within a predetermined range based on the oxygen gas concentration in the recirculation chamber of the trocar, and increases an insufflation flow rate to the abdominal cavity through the trocar if the carbon dioxide gas concentration in the abdominal cavity falls below a predetermined level as a result of leakage, by controlling the operation of the compressor, and wherein the insufflation flow rate will not be lower than a smoke evacuation level, wherein the gas circuit that includes the recirculation chamber is a first gas circuit, and further comprising a second gas circuit operatively connected to the control unit for insufflating the abdominal cavity, wherein the control unit is operatively connected to the first and second gas circuits to control the insufflation flow rate in the second gas circuit based on oxygen gas concentration in the first gas circuit as monitored by the oxygen gas sensor.

4. A surgical gas delivery device configured for insufflation and smoke evacuation through a gas sealed trocar having a recirculation chamber therein, the device comprising:

a device housing communicating with a patient'"'"'s abdominal cavity through a gas circuit that includes a recirculation chamber of a gas sealed trocar and a compressor for circulating gas to and from the recirculation chamber of the trocar, the device housing supporting a gas composition unit having an oxygen gas sensor for monitoring oxygen gas concentration in the recirculation chamber of the trocar and a flow regulator communicating with the compressor for controlling an insufflation flow rate to the patient'"'"'s abdominal cavity through the trocar based upon the oxygen gas concentration in the recirculation chamber of the trocar, wherein the insufflation flow rate will not be lower than a selected smoke evacuation level, wherein the gas circuit that includes the recirculation chamber is a first gas circuit, and further comprising a second gas circuit operatively connected to a control unit for insufflating the abdominal cavity, wherein the control unit is operatively connected to the first and second gas circuits to control the insufflation flow rate in the second gas circuit based on oxygen gas concentration in the first gas circuit as monitored by the oxygen gas sensor.