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US4940157A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of treating medical wastes and containers to be used for the treatment method

Assignee: Individual
•
Filing: 1989-04-12
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Granted: 1990-07-10
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Expires: 2009-04-12
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Abstract

Abstract A method of safely treating medical wastes such as syringe needles, absorbent tissue and bandages, wherein all the steps of treatment from throwing medical wastes into the container to the final disposal are identified by the appearance of the container. There is also provided a disposable container that can be safely used with the method. A container according to the invention comprises a lid section provided with a certain amount of elastic filler material between an inner lid and a top lid, a pair of input ports provided on the lid section for throwing medical wastes therethrough and a pair of semi-circular rotary lids for opening and closing the input ports, wherein the input ports are provided with a larger opening and a smaller opening which is in communication with the larger opening and so dimensioned to come into engagement with the tip of a syringe so that the needle is removed from the syringe by pulling up the latter from the opening.

Inventors

  • 👤 Jitsuo Inagaki

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 07:49
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/3205; A61B; A61B50/00; A61B50/30; A61B50/36; A61B2050/005; A61B2050/0051; A61B2050/0054; Y; Y10; Y10S; Y10S220/00; Y10S220/908

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 122 words
An article for treatment of medical wastes comprising a container having an opening, a lid section including a certain amount of elastic filler material between an inner lid and a top lid and rigidly fitted into the opening of the container, a pair of input ports provided on said lid section for disposing medical wastes therethrough and a pair of rotary lids for opening and closing said input ports, wherein said input ports are provided with a larger opening and a smaller opening which is in communication with the larger opening and so dimensioned to come into engagement with a needle of a syringe so that the needle can be removed from the syringe by pulling up the syringe from the opening.
Claim 2
Dependent Claim 122 words
An article for treatment of medical wastes comprising a container having an opening, a lid section including a certain amount of elastic filler material between an inner lid and a top lid and rigidly fitted into the opening of the container, a pair of input ports provided on said lid section for disposing medical wastes therethrough and a pair of rotary lids for opening and closing said input ports, wherein said input ports are provided with a larger opening and a smaller opening which is in communication with the larger opening and so dimensioned to come into engagement with a needle of a syringe so that the needle can be removed from the syringe by pulling up the syringe from the opening.
Claim 3
Dependent Claim 47 words
An article for treating medical wastes according to claim 1, wherein the inner lid includes a port and a downward cylindrical projection is formed about the port on said inner lid to prevent liquid content in said container from flowing out even when the container is toppled.
Claim 4
Dependent Claim 20 words
An article for treating medical wastes according to claim 1, further including a middle lid adjacent to the inner lid.
Claim 5
Dependent Claim 28 words
An article for treating medical wastes according to claim 3, wherein one port is formed in a middle lid and one port is formed in the top lid.
Claim 6
Dependent Claim 23 words
An article for treating medical wastes according to claim 3 wherein said rotary lids are between said middle lid and said top lid.
Claim 7
Dependent Claim 32 words
An article for treating medical wastes according to claim 3, wherein the peripheries of the inner lid, the middle lid and the top lid are secured to the opening of the container.
Claim 8
Dependent Claim 32 words
An article for treating medical wastes according to claim 6, wherein the peripheries of the inner lid, the middle lid and the top lid are rolled about the opening of the container.
Claim 9
Dependent Claim 27 words
An article for treating medical wastes according to claim 3, wherein the inner lid has a central projection which projects through a bore in said rotary lids.
Claim 10
Dependent Claim 28 words
An article for treating medical wastes according to claim 8, wherein said top lid has a central projection over and secured to the projection of the inner lid.
Claim 11
Dependent Claim 33 words
An article for treating medical wastes according to claim 9, wherein said top lid has a curved slit and each rotary lid has a strip projecting through the slit in the top lid.
Claim 12
Dependent Claim 29 words
An article for treating medical wastes according to claim 10, wherein the middle lid includes a stopper and each rotary lid abuts spring means in contact with the stopper.
Claim 13
Dependent Claim 23 words
An article for treating medical wastes according to claim 11, wherein one strip includes a connector for releasably securing the two strips together.
Claim 14
Dependent Claim 29 words
An article for treating medical wastes according to claim 14, wherein the middle lid includes a stopper and each rotary lid abuts spring means in contact with the stopper.
Claim 15
Dependent Claim 33 words
An article for treating medical wastes according to claim 14, wherein said top lid has a curved slit and each rotary lid has a strip projecting through the slit in the top lid.
Claim 16
Dependent Claim 29 words
An article for treating medical wastes according to claim 14, wherein the middle lid includes a stopper and each rotary lid abuts spring means in contact with the stopper.
Claim 17
Dependent Claim 23 words
An article for treating medical wastes according to claim 14, wherein one strip includes a connector for releasably securing the two strips together.
Claim 18
Dependent Claim 15 words
An article for treating medical wastes according to claim 16, wherein the connector is U-shaped.
Claim 19
Dependent Claim 25 words
An article for treating medical wastes according to claim 1, wherein the container has a circular ridge on an interior surface opposed to the opening.

References Cited (Backward Citations)

US1152286A Cited
US3164286A Cited
US3860111A Cited
US4141461A Cited
US4466538A Cited
US4667821A Cited
US4657139A Cited
US4802579A Cited
US4807344A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-07-09 1994-01-08 1994-07-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-07-09 1998-01-08 1998-07-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-07-09 2002-01-08 2002-07-10 $7700.00 Window Closed / Lapsed

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