US5490841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety sheath device
Assignee: Individual
•
Filing: 1994-07-29
•
Granted: 1996-02-13
•
Expires: 2014-07-29
Abstract
Abstract A needle protection device is disclosed having an elongate housing with a longitudinal needle entrance portion defined between two housing side walls. At least one hinged door member is provided extending across the entrance portion to enclose the needle within the housing. In one embodiment the housing has a trap door attached by a resilient living hinge to one side wall and extending across the entrance portion to engage a door stop on the opposite side wall, so that the door is able to rotate about the hinge toward the first side wall to allow the needle to enter the housing, but is limited by the door stop in the degree of rotation away from the first side wall, thereby preventing a needle within the housing from exiting through the entrance portion. In alternative embodiments the door may extend less than the entire length of the housing and/or a needle engaging member, such as a needle engaging hook, may be provided to engage and retain the needle within the housing.
Inventors
- 👤 Robert M. Landis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:11
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/3205; A61M5/321; A61M5/3216; A61M2005/3217; A61M5/3202; Y; Y10; Y10S; Y10S128/00; Y10S128/917; Y10S128/919
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
84 words
In a needle protection device having an elongated housing pivotal to enclose a needle, the housing including a longitudinal slot for receiving a needle therethrough as the housing is pivoted to enclose the needle, the improvement comprising at least one elongated door member hingedly attached to the housing and extending across the longitudinal slot over substantially the entire length of the longitudinal slot, the door member being biased to close the longitudinal slot after a needle has entered the housing through the longitudinal slot.
Claim 2
Dependent Claim
84 words
In a needle protection device having an elongated housing pivotal to enclose a needle, the housing including a longitudinal slot for receiving a needle therethrough as the housing is pivoted to enclose the needle, the improvement comprising at least one elongated door member hingedly attached to the housing and extending across the longitudinal slot over substantially the entire length of the longitudinal slot, the door member being biased to close the longitudinal slot after a needle has entered the housing through the longitudinal slot.
Claim 3
Dependent Claim
45 words
The needle protection device of claim 1 wherein the elongate door member comprises a trap door extending from a first side wall of the housing to a second side wall of the housing, the trap door abutting a door stop on the second side wall.
Claim 4
Dependent Claim
37 words
The needle protection device of claim 1 wherein the at least one elongate door member comprises a pair of elongate doors each extending from a side wall of the housing, the doors overlapping to close the housing.
Claim 5
Dependent Claim
22 words
The needle protection device of claim 1 wherein the elongate door member is attached to the housing by a resilient living hinge.
Claim 6
Dependent Claim
77 words
A surgical sharp protection device comprising: an elongate housing having a first end hingedly associated with the base of a surgical sharp, the housing having a rear wall portion, first and second side wall portions defining an elongate surgical sharp entrance slot therebetween extending away from the base of the surgical sharp, and at least one door member hingedly attached to at least one side wall and extending across substantially the entire length of the entrance slot.
Claim 7
Dependent Claim
77 words
A surgical sharp protection device comprising: an elongate housing having a first end hingedly associated with the base of a surgical sharp, the housing having a rear wall portion, first and second side wall portions defining an elongate surgical sharp entrance slot therebetween extending away from the base of the surgical sharp, and at least one door member hingedly attached to at least one side wall and extending across substantially the entire length of the entrance slot.
Claim 8
Dependent Claim
35 words
The device of claim 5 wherein the at least one door member comprises a trap door attached by a resilient door hinge member to the first side wall and extending adjacent the second side wall.
Claim 9
Dependent Claim
14 words
The device of claim 6 wherein the resilient door hinge is a living hinge.
Claim 10
Dependent Claim
16 words
The device of claim 6 wherein the housing, trap door and resilient hinge are integrally molded.
Claim 11
Dependent Claim
14 words
The device of claim 6 wherein the second side wall includes a door stop.
Claim 12
Dependent Claim
38 words
The device of claim 9 wherein the trap door is rotatable about the door hinge toward the first side wall, the door stop limiting rotation of the door about the door hinge away from the first side wall.
Claim 13
Dependent Claim
13 words
The device of claim 5 wherein the surgical sharp is a surgical needle.
Claim 14
Dependent Claim
15 words
The device of claim 5 wherein the housing further includes a needle engaging hook member.
Claim 15
Dependent Claim
32 words
The device of claim 5 wherein the at least one door member comprises a pair of doors, each door hingedly attached by a resilient door hinge to one of the side walls.
Claim 16
Dependent Claim
84 words
In combination: a surgical needle attached to a needle base; an elongated housing having a first proximal end adapted to be hingedly associated with the needle base, the elongate housing extending distally away from the needle base and having side walls defining an elongate entrance slot to receive the needle therethrough as the housing is pivoted relative to the needle base, the housing including at least one door member extending across at least the distal portion of the entrance slot adjacent the needle tip.
Claim 17
Dependent Claim
84 words
In combination: a surgical needle attached to a needle base; an elongated housing having a first proximal end adapted to be hingedly associated with the needle base, the elongate housing extending distally away from the needle base and having side walls defining an elongate entrance slot to receive the needle therethrough as the housing is pivoted relative to the needle base, the housing including at least one door member extending across at least the distal portion of the entrance slot adjacent the needle tip.
Claim 18
Dependent Claim
30 words
The combination of claim 14 wherein the housing is hingedly rotatable into alignment with the needle, the needle entering the housing through the elongate entrance slot past the door member.
Claim 19
Dependent Claim
35 words
The combination of claim 14 wherein the at least one door member comprises a trap door attached by a resilient door hinge member to the first side wall and extending adjacent the second side wall.
Claim 20
Dependent Claim
14 words
The combination of claim 16 wherein the resilient door hinge is a living hinge.
Claim 21
Dependent Claim
15 words
The combination of claim 16 wherein housing, trap door and resilient hinge are integrally molded.
Claim 22
Dependent Claim
14 words
The combination of claim 16 wherein the second side wall includes a door stop.
Claim 23
Dependent Claim
38 words
The combination of claim 19 wherein the trap door is rotatable about the door hinge toward the first side wall, the door stop limiting rotation of the door about the door hinge away from the first side wall.
Claim 24
Dependent Claim
80 words
The combination of claim 20 wherein the needle enters the housing through the door as the housing is rotated into alignment with the needle, the needle contacting the door and urging the door toward the first side wall about the door hinge, the door being biased toward contact with the door stop to thereafter prevent the needle from leaving the housing after the needle has entered the housing through the slot and the door is biased toward the door stop.
Claim 25
Dependent Claim
15 words
The combination of claim 14 wherein the housing further includes a needle engaging hook member.
Claim 26
Dependent Claim
32 words
The combination of claim 14 wherein the at least one door member comprises a pair of doors, each door hingedly attached by a resilient door hinge to one of the side walls.
Claim 27
Dependent Claim
21 words
The combination of claim 14 wherein the elongate housing is hingedly attached to a luer fitting engagable with a needle hub.
Claim 28
Dependent Claim
16 words
The combination of claim 14 wherein the elongate housing is hingedly attached to a needle hub.
Claim 29
Dependent Claim
15 words
The combination of claim 14 wherein the elongate housing is hingedly attached to a syringe.
Claim 30
Dependent Claim
15 words
The combination of claim 14 wherein the elongate housing is hingedly attached to a vacutainer.
Claim 31
Dependent Claim
22 words
The combination of claim 14 wherein the elongate entrance portion is tapered to urge the needle toward the center of the housing.
Claim 32
Independent Claim
112 words
A method of reducing the likelihood of contact with a needle or matter thereon, comprising: providing a needle protection device having an elongated housing pivotal to enclose a needle, the housing including a longitudinal slot to receive the needle therethrough and at least one elongate door member extending over substantially the entire length of the slot hingedly attached to the housing and biased to close the slot; rotating the housing into alignment with the needle so that the needle enters the housing through the longitudinal slot past the door member, the door member resiliently closing the slot to contain the needle within the housing after the needle has passed the door member.
Claim 33
Independent Claim
112 words
A method of reducing the likelihood of contact with a needle or matter thereon, comprising: providing a needle protection device having an elongated housing pivotal to enclose a needle, the housing including a longitudinal slot to receive the needle therethrough and at least one elongate door member extending over substantially the entire length of the slot hingedly attached to the housing and biased to close the slot; rotating the housing into alignment with the needle so that the needle enters the housing through the longitudinal slot past the door member, the door member resiliently closing the slot to contain the needle within the housing after the needle has passed the door member.
Claim 34
Independent Claim
137 words
A method of reducing the likelihood of contact with a needle or matter thereon, comprising: providing a surgical needle attached to a needle base with an elongate housing having a first end adapted to be hingedly associated with the needle base, the elongate housing extending distally away from the needle base and having first and second side walls defining an elongate needle entrance slot, the housing including at least one door member hingedly attached to the first side wall and extending across at least a portion of the entrance slot; rotating the housing into alignment with the needle so that the needle enters the housing through the entrance slot past the door member, the door member resiliently closing at least the distal portion of the entrance slot to enclose at least the tip portion of the needle.
Claim 35
Independent Claim
137 words
A method of reducing the likelihood of contact with a needle or matter thereon, comprising: providing a surgical needle attached to a needle base with an elongate housing having a first end adapted to be hingedly associated with the needle base, the elongate housing extending distally away from the needle base and having first and second side walls defining an elongate needle entrance slot, the housing including at least one door member hingedly attached to the first side wall and extending across at least a portion of the entrance slot; rotating the housing into alignment with the needle so that the needle enters the housing through the entrance slot past the door member, the door member resiliently closing at least the distal portion of the entrance slot to enclose at least the tip portion of the needle.
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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) | 1999-02-12 | 1999-08-14 | 2000-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-12 | 2003-08-14 | 2004-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-12 | 2007-08-14 | 2008-02-13 | $7700.00 | Window Closed / Lapsed |