Patent US4736844A successfully refreshed from Google Patents.
US4736844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container for the disposal of sharps
Assignee: Nuffield Nursing Homes Trust
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Filing: 1987-08-07
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Granted: 1988-04-12
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Expires: 2007-08-07
Abstract
Abstract A device for enabling the safe disposal of contaminated used disposable blades, needles, and other sharps resulting from surgery or medical treatment comprises a container (1) having two compartments, a first, closed compartment (2) including a slot (16) and a re-entrant wall portion (12) and a second compartment (3) including a hinged lid (4). Means (8, 9) are provided inside the second compartment (3) securely to hold used needles (22, 23, 24) and a catch (7) is provided to hold the lid (4) of the second compartment (3) closed. The slot (16) and re-entrant wall portion (12) enable a used blade to be inserted into the slot (16) with the re-entrant wall portion accommodating a handle upon which the used blade is mounted and a disarming unit (14, 15) is located adjacent the slot (16) and re-entrant wall portion (12) to remove the blade from the handle. At least part of the wall (10) of the first compartment (2) is transparent to enable the contents of the first compartment (2) to be inspected and counted.
Inventors
- 👤 Stephen D. Scott
- 👤 June M. Redstone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:36
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3209; A61B17/3211; A61B17/3217; A61B50/00; A61B50/30; A61B50/36; A61B50/362; A61B50/31; A61B2050/311; A61B90/00; A61B90/08; A61B2090/0804
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
144 words
A device for enabling the safe disposal of contaminated used disposable blades, needles and other sharps said device comprising a container, means defining first and second compartments in said container, said first compartment being closed and including means defining an entry slot, a re-entrant wall portion to enable a used blade, which is mounted on a handle, to be inserted into said slot with said re-entrant wall portion accommodating said handle, a disarming unit adjacent said slot and said re-entrant wall portion for removing said blade from said handle, and a transparent wall portion to enable the contents of said first closed compartment to be inspected and counted, and said second compartment including a lid, means hinging said lid to said compartment, means inside said second compartment securely to hold used needles, and catch means to hold said lid of said second compartment closed.
Claim 2
Independent Claim
144 words
A device for enabling the safe disposal of contaminated used disposable blades, needles and other sharps said device comprising a container, means defining first and second compartments in said container, said first compartment being closed and including means defining an entry slot, a re-entrant wall portion to enable a used blade, which is mounted on a handle, to be inserted into said slot with said re-entrant wall portion accommodating said handle, a disarming unit adjacent said slot and said re-entrant wall portion for removing said blade from said handle, and a transparent wall portion to enable the contents of said first closed compartment to be inspected and counted, and said second compartment including a lid, means hinging said lid to said compartment, means inside said second compartment securely to hold used needles, and catch means to hold said lid of said second compartment closed.
Claim 3
Dependent Claim
82 words
A device as claimed in claim 1, in which said disarming unit includes a detent for engaging a heel portion of said blade to lift said blade away from a key on said handle and hold said blade in position in said slot whilst said handle is pulled away from said blade until said key on said handle is aligned with an enlarged portion of a key hole in said blade to enable said key to be removed from said key hole.
Claim 4
Dependent Claim
87 words
A device as claimed in claim 2, in which said detent further comprises opposed projections which define said slot of said first compartment, one of said projections being arranged to engage said heel of said blade when said blade is inserted into said slot to bend said heel to lift said blade over said key of said handle, and the other of said projections being arranged to engage said heel of said blade to prevent said blade being withdrawn from said slot as said handle is withdrawn.
Claim 5
Dependent Claim
22 words
A device as claimed in claim 1 or claim 2, in which said second compartment includes means defining an adhesive surface therein.
Claim 6
Dependent Claim
40 words
A device as claimed in claim 1 or claim 2, in which said means for securely holding said needles includes at least one strip of foamed plastics material and means fixing said strip to the inside of said second compartment.
Claim 7
Dependent Claim
56 words
A device as claimed in claim 1 or claim 2, in which said lid of said second compartment is resilient and in which said catch means includes means defining an inclined ramp surface, means defining a first abutment surface on said lid and means defining a second abutment surface on the bottom of said second compartment.
Claim 8
Dependent Claim
35 words
A device as claimed in claim 1 or claim 2, in which the outside surface of said lid and the bottom of said second compartment include adhesive strips and a peel-off backing on said strips.
Claim 9
Dependent Claim
44 words
A device as claimed in claim 1 or claim 2, in which means forming part of said lid covers said slot of said first compartment when said lid is closed whereby used blades are prevented from escaping from said first compartment through said slot.
References Cited (Backward Citations)
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US4637513A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-12 | 1991-10-12 | 1992-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-12 | 1995-10-12 | 1996-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-12 | 1999-10-12 | 2000-04-12 | $7700.00 | Window Closed / Lapsed |