Smoke evacuation system

• US 20050000196A1
• Filed: 07/03/2003
• Published: 01/06/2005
• Est. Priority Date: 07/03/2003
• Status: Abandoned Application

• Current Assignee: JLJ Medical Devices International LLC
• Original Assignee: JLJ Medical Devices International LLC
• Inventors: Schultz, Leonard S.
• Application Number:
  US10/612,862
• Publication Number:
  US 20050000196A1
• Time in Patent Office: Days
• US Class Current: 55/385.200
• CPC Class Codes: A61B 18/00 Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body eye surgery A61F9/007; ear surgery A61F11/00
• CPC Class Codes: A61B 2218/008 for smoke evacuation

Abstract

A smoke evacuating system for use during surgical procedures, particularly minimally invasive procedures involving the use of a laser or cautery at a surgical site having an associated higher than ambient pressure, wherein the system includes a filter with a site side and an outlet side and a fluid conduit extending between the surgical site and the filter. The filter includes a filter media and a housing substantially surrounding the filter media with a space between the filter media and the housing to collect condensed vapor. The filter exhibits low resistance or a low pressure drop and resists fluid flow, whereby the higher than ambient pressure is not substantially diminished and generates a fluid flow in the fluid flow path tending to carry smoke to and through the filter.

Claims

1. A system for removing vapors and particles from a pressurized surgical cavity, the system comprising:

a fluid pathway including an intake end and a return end, both ends being in fluid communication with a pressurized surgical site;

a flow generating device in fluid communication with the fluid pathway and located between the intake end and the return end;

a filter in fluid communication with the fluid pathway and located between the intake end and the return end,

wherein the flow generating device generates a flow rate through the system of approximately 0.2 to approximately 4.5 liters per minute for a fluid comprising insufflation gases.

2. The system of claim 1, wherein the flow rate creates a minimal total system pressure loss.

3. The system of claim 1, the flow rate is approximately 2.5 to approximately 4.0 liters per minute.

4. The system of claim 3, wherein the flow rate creates a minimal total system pressure loss.

5. The system of claim 1, wherein the flow generating device is sterile prior to use and disposable.

6. The system of claim 1, wherein the filter includes a water trap.

7. The system of claim 1 further comprising a valve adapted to control the fluid flow.

8. The filter of claim 1 further comprising an odor removing media.

9. The filter of claim 1 further comprising a particulate removing media.

10. The system of claim 1, wherein the flow generating device is battery powered.

11. The system of claim 1, wherein the generated flow is substantially steady.

12. The system of claim 1, wherein the flow generating device and the filter are capable of undergoing sterilization.

13. The system of claim 1, wherein the system is capable of undergoing sterilization.

14. The system of claim 1, the flow generating device is incapable of generating a spark.

15. The system of claim 1, wherein the system is disposable.

16. The system of claim 1, wherein the system is operable without being coupled to any device remote from the location of its use.

17. The system of claim 1, wherein the flow generating device comprises a positive displacement pump.