High flow manifold

Patent metadata

Field	Value
Publication number	US-10758649-B2
Application number	US-201715467307-A
Country	US
Kind code	B2
Filing date	Mar 23, 2017
Priority date	Mar 23, 2017
Publication date	Sep 1, 2020
Grant date	Sep 1, 2020

Abstract

Implementations described herein include a system for guiding medical waste fluid into a medical waste collection canister. The system includes a manifold and a filter. The manifold includes a top surface and a sidewall extending from the top surface in a first direction. The top surface and the sidewall define an interior chamber of the manifold. The top surface includes an inlet port and a vacuum port disposed therein. The inlet port connects to a source of medical waste fluid and the vacuum port connects to a vacuum source. The manifold can be formed from a first polymer. A filter is positioned within the interior chamber of the manifold and immediately upstream of the vacuum port so as to filter air flowing into the vacuum port. The filter extends away from the top surface of the manifold in the first direction and the filter is formed from a second polymer. The filter is fused to a surface of the interior chamber of the manifold or to a peripheral surface of the vacuum port so as to form a fused interface, and not merely a press fit connection.

First claim

What is claimed is:

1. A system for guiding medical waste fluid into a medical waste collection canister, the system comprising:
a manifold comprising a top surface and a sidewall extending from the top surface in a first direction, the top surface and the sidewall defining an interior chamber of the manifold, wherein:
the top surface comprises an inlet port, a filter socket and a vacuum port disposed therein,
the inlet port is configured to connect to a source of medical waste fluid,
the vacuum port is configured to connect to a vacuum source, and
the manifold is formed from a first polymer;

a filter positioned within the interior chamber of the manifold and immediately upstream of the vacuum port so as to filter air flowing into the vacuum port, wherein the filter comprises:
a top filter surface positioned proximate the top surface of the manifold within the filter socket;
a filter body connected to and extending away from the top surface of the manifold in the first direction alongside a surface of the socket; and
a bottom filter surface connected to the filter body and positioned outside of the filter socket within the interior chamber such that the filter body directly faces the sidewall of the manifold and is exposed to the interior chamber;
wherein the filter is formed from a second polymer;

wherein the filter is fused to a surface of the interior chamber of the manifold or a peripheral surface of the vacuum port so as to form a fused interface within the filter socket, and not merely a press fit connection.

2. The system of claim 1 , wherein the fused interface comprises a chemical bond between the first polymer and the second polymer.

3. The system of claim 1 , wherein the fused interface is formed by melting portions of the filter and the manifold.

4. The system of claim 1 , wherein the fused interface is formed by spin welding, ultrasonic welding, hot plate welding, laser welding, or radio frequency welding.

5. The system of claim 1 , wherein the fused interface is formed by spin welding the filter to the manifold, spin welding comprising rapid rotation of the filter and the manifold with respect to each other, so as to melt and chemically bond the first polymer and the second polymer.

6. The system of claim 1 , wherein the inlet port extends from the top surface of the manifold in the first direction a distance greater than the filter extends from the top surface of the manifold in the first direction.

7. The system of claim 1 , wherein the fused interface comprises a hermetic interface.

8. The system of claim 1 , wherein the first polymer or the second polymer is a thermoplastic polymer.

9. The system of claim 8 , wherein the first polymer or the second polymer comprises polyethylene.

10. The system of claim 9 , wherein the first polymer and the second polymer comprise polyethylene.

11. The system of claim 1 , wherein the filter is a hygroscopic filter.

12. The system of claim 1 , wherein the manifold and the filter are monolithic.

13. The system of claim 1 , wherein a fused interface of the filter and peripheral surface of the vacuum port is circular.

14. The system of claim 1 , wherein the manifold further comprises a first tab extending radially outward from a circumferential edge of the manifold.

15. The system of claim 14 , wherein the manifold further comprises a second tab extending radially outward from the circumferential edge of the manifold, wherein the first tab and the second tab are spaced apart along the circumferential edge of the manifold.

16. The system of claim 15 , wherein the first tab and the second tab comprise a bayonet mount.

17. The system of claim 1 , wherein the inlet port further comprises a plurality of inlet ports.

18. The system of claim 1 , wherein the inlet port or the vacuum port further comprises a cap removably securable thereto.

19. The system of claim 18 , wherein the cap is coupled to the manifold via a tether.

20. A system for guiding medical waste fluid into a medical waste collection canister, the system comprising:
a manifold comprising:
a top wall having an exterior surface and an interior surface;
a sidewall extending from the interior surface, the top wall and the sidewall defining an interior chamber of the manifold;
an inlet port located on the exterior surface configured to fluidly connect a source of medical waste to the interior chamber;
a filter socket located on the interior surface; and
a vacuum port located on the exterior surface opposite the socket and configured to fluidly connect a source of medical waste fluid to the interior chamber;

a filter positioned in the socket within the interior chamber so as to be positioned to filter air flowing into the vacuum port; and
a fused interface between the top wall and the filter wherein the filter is fused to a surface of the interior chamber of the manifold or a peripheral surface of the vacuum port so as to form a fused interface, and not merely a press fit connection;
wherein the manifold, the filter and the fused interface are monolithic to form a unitary structure that comprises a uniform composition throughout such that the fused interface is not different than the manifold and the filter.

21. The system of claim 20 , wherein the socket comprises a flange extending away from the interior surface.

22. The system of claim 20 wherein the filter comprises:
a bottom wall; and
a cylindrical side body extending from the bottom wall and into the socket;
wherein the bottom wall, the cylindrical side body and the interior surface of the top wall form a filter chamber.

23. The system of claim 20 , further comprising a manifold cap releasably coupled to a free end of the sidewall.

24. The system of claim 20 , wherein the filter and the socket are circular.

25. The system of claim 20 , wherein the filter and the manifold are fabricated from polyethylene and the fused interface comprises inter-diffused polymer chains of polyethylene.

26. The system of claim 20 , wherein the filter is a hygroscopic filter and the manifold is fabricated from a polymer.

27. The system of claim 20 , wherein the inlet port includes a passage that extends through the interior chamber.

28. The system of claim 1 , wherein the top filter surface abuts the top surface of the manifold such that the fused interface is proximate the top filter surface and spaced from the bottom filter surface.

29. The system of claim 1 , wherein the filter is of a uniform composition throughout.

30. The system of claim 1 , further comprising a spinning tool configured to receive and circumscribe the bottom filter surface of the filter to facilitate fusing of the top filter surface.

31. The system of claim 20 , wherein the filter comprises:
a top filter surface positioned proximate the top surface of the manifold within the filter socket;
a filter body connected to and extending away from the top surface of the filter in the first direction alongside a surface of the socket; and
a bottom filter surface connected to the filter body and positioned outside of the filter socket within the interior chamber such that the filter body directly faces the sidewall of the manifold and is exposed to the interior chamber.

Assignees

• Zimmer Inc

Inventors

• Smith Larry C
• Boles David J

Classifications

• A61M1/60

  Containers for suction drainage, adapted to be used with an external suction source (containers not adapted for subjection to vacuum A61M1/69) · CPC title

• A61M1/784 Primary

  by filtering, sterilising or disinfecting the exhaust air, e.g. swellable filter valves · CPC title

• B01D46/88

  Replacing filter elements · CPC title

• A61M2205/7536

  allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes · CPC title

• B01D46/0005

  Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence) · CPC title