Multimodal surgical gas delivery system for laparoscopic surgical procedures

• US 9,375,539 B2
• Filed: 09/20/2011
• Issued: 06/28/2016
• Est. Priority Date: 09/08/2006
• 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:
  US13/237,628
• Publication Number:
  US 20120150101A1
• Time in Patent Office: 1,743 Days
• Field of Search: 604/23, 604/24, 604/26
• 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

The subject multimodal surgical gas delivery system configured to couple to one or more surgical devices providing access into a patient body cavity includes a computer-controlled control unit configured and adapted to provide at least one of the following modes of operation. A first mode of operation for providing a pressurized insufflation fluid from an insufflation gas source into a surgical device for providing and maintaining sealable access to the body cavity in a surgical device. A second mode of operation for performing smoke evacuation in a filter element from insufflation fluid caused to recycle through the multimodal system from the body cavity via a surgical device. A third mode of operation for providing insufflation fluid from the insufflation gas source into the body cavity for creating and maintaining insufflation of the body cavity.

Claims

1. A multimodal surgical gas delivery system configured for use with one or more trocars providing access into a patient'"'"'s body cavity, the system comprising:

a control unit having a pump with a supply conduit and a return conduit, an insufflation subunit with an insufflation conduit, and a diverting valve having a plurality of defined operating positions and connected to each of the supply conduit, the return conduit and the insufflation conduit for controlling gas flow through the gas delivery system based upon a user selected operating mode, and wherein the control unit has multiple user selectable operating modes including;

i) a recirculation mode wherein the diverting valve is positioned to facilitate the delivery of pressurized gas from the pump, through the supply conduit, to a trocar of the one or more trocars, to create and maintain a pressure barrier therein which inhibits a loss of insufflation gas from the patient'"'"'s body cavity through the trocar of the one or more trocars, wherein depressurized gas from the pressure barrier created in the trocar returns to the pump through the return conduit;

ii) a smoke evacuation mode wherein the diverting valve is positioned to facilitate the removal of smoke from the insufflation gas within the patient'"'"'s body cavity to improve visibility within the patient'"'"'s body cavity; and

iii) an insufflation mode wherein the diverting valve is positioned to facilitate the delivery of insufflation gas into the patient'"'"'s body cavity from the insufflation subunit, through the insufflation conduit, to create and maintain a pneumoperitoneum,

wherein the control unit is configured to permit a user to select an operating mode either individually or combined with another operating mode.

2. The multimodal surgical gas delivery system as recited in claim 1, wherein the control unit includes a control panel to permit the user to select an operating mode either individually or combined with another operating mode.

3. The multimodal surgical gas delivery system as recited in claim 1, wherein the control panel is configured to permit the user to selectively adjust operation parameters of each of the operating modes.

4. The multimodal surgical gas delivery system as recited in claim 1, wherein the control unit includes a pressure sensor for sensing abdominal pressure through the insufflation conduit.

5. The multimodal surgical gas delivery system as recited in claim 1, wherein the control unit includes a back-pressure control valve in communication with the supply conduit and the return conduit configured to respond to a supply conduit pressure exceeding a set pressure by directing gas from the supply conduit to the return conduit.

6. The multimodal surgical gas delivery system as recited in claim 1, further comprising a filter element configured to filter gas returning to the pump through the return conduit.

7. The multimodal surgical gas delivery system as recited in claim 1, further comprising a filter element configured to filter gas delivered by the pump through the supply conduit.

8. The multimodal surgical gas delivery system as recited in claim 1, further comprising a filter element configured to filter gas delivered from the insufflation subunit through the insufflation conduit.