Granted Patent B2

US 12,408,968 · App. 17/572,217 · Granted Sep 9, 2025

Inventors: Shawn K. Horner (Woods Cross, UT); Jason L Harris (Lebanon, OH); Frederick Shelton (Hillsboro, OH); Chad S. Frampton (American Fork, UT); Steven D. Andrews (West Jordan, UT); Benjamin J. Danziger (Seattle, WA); Mark D. Glassett (Sandy, UT); Darcy W. Greep (Herriman, UT); Roger Millis (West Jordan, UT); David C. Yates (West Chester, OH)

Assignee: MEGADYNE MEDICAL PRODUCTS, INC.

A61B18/1402A61B2018/00017A61B2018/00702A61B2018/00827A61B2090/034A61B2218/008

Abstract

Claims (25)

1. A filter, comprising:

a filter body;

a front cap associated with a first end of the filter body, the front cap being configured to couple to and receive smoke from a vacuum hose;

a back cap associated with a second end of the filter body, the back cap having a filter exhaust that is sized and shaped to associate with and communicate suction from a smoke evacuation system;

a compressed carbon reservoir disposed within the filter body between the front cap and the back cap; and

a flexible sleeve extending at least partially between the front and back caps and at least partially around the compressed carbon reservoir, the flexible sleeve being biased towards the compressed carbon reservoir to compress the carbon reservoir.

2. The filter of claim 1 , wherein the flexible sleeve extends circumferentially about the compressed carbon reservoir.

3. The filter of claim 2 , wherein the flexible sleeve is configured to compress the compressed carbon reservoir towards a center thereof.

4. The filter of claim 1 , wherein the flexible sleeve extends circumferentially about only a portion of the compressed carbon reservoir.

5. The filter of claim 4 , wherein the flexible sleeve is configured to compress the compressed carbon reservoir towards a side of the filter opposite the flexible sleeve.

6. The filter of claim 1 , further comprising first and second porous dividers disposed at opposing ends of the compressed carbon reservoir.

7. A filter, comprising:

a filter body having a first end and an opposing second end;

a front cap associated with the first end of the filter body, the front cap being configured to couple to and receive smoke from a vacuum hose;

a back cap associated with the second end of the filter body, the back cap having a filter exhaust that is sized and shaped to associate with and communicate suction from a smoke evacuation system;

a compressed carbon reservoir disposed within the filter body between the front cap and the back cap;

a first porous divider disposed between the compressed carbon reservoir and the back cap; and

a second porous divider disposed between the compressed carbon reservoir and the front cap, the second porous divider being formed of a rigid material and being configured to move towards the first porous divider when the volume of the compressed carbon reservoir decreases.

8. The filter of claim 7 , wherein the second porous divider is configured to successively engage a plurality of ridges associated with the interior of the filter body when the volume of the compressed carbon reservoir decreases.

9. The filter of claim 8 , wherein the second porous divider is weighted such that it successively engages the plurality of ridges associated with the interior of the filter body when the volume of the compressed carbon reservoir decreases.

10. The filter of claim 8 , wherein the second porous divider is configured to successively engage the plurality of ridges associated with the interior of the filter body in response to a negative pressure within the compressed carbon reservoir.

11. The filter of claim 7 , further comprising a biasing member configured to move the second porous divider towards the first porous divider when the volume of the compressed carbon reservoir decreases.

12. The filter of claim 11 , wherein the biasing member comprises a flexible member.

13. The filter of claim 12 , wherein the flexible member comprises a spring member that forces the second porous member to maintain contact with carbon particles within the compressed carbon reservoir.

14. The filter of claim 13 , wherein spring member is configured to move the second porous member successively along a plurality of ridges associated with the interior of the filter body when the volume of the compressed carbon reservoir decreases.

Assignments (1)

Continuity (2)

References Cited (290)