US4874384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Needle safety guard
Assignee: TRI-GAMMA Inc
•
Filing: 1987-07-13
•
Granted: 1989-10-17
•
Expires: 2007-07-13
Abstract
Abstract A medical needle guard device is disclosed characterized by use of a pair of telescoping tubular sleeves mountable upon the hub of conventional medical needles by plural clip inserts positionable within one of the tubular sleeves. The plural clips may be specifically formed in differing configurations and positioned at differing axial positions along the length of one of the tubular sleeves to permit the medical needle guard to be retrofitted onto differing medical needle hubs.
Inventors
- 👤 Chris E. Nunez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:31
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/3205; A61M5/321; A61M5/3243; Y; Y10; Y10S; Y10S128/00; Y10S128/917; Y10S128/919
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
152 words
A protective apparatus mountable to the hub of a medical needle for guarding a needle element projecting from the hub, the apparatus comprising: a tubular guard sized to receive therein a needle element of a medical needle and at least a portion of a hub of the medical needle and axially positionable upon the length of said needle element to extend over and to guard a tip of the needle element; a first and second clip spaced axially along the tubular guard and the hub which first and second clip are inserted into a slotted aperture formed in the tubular guard, the first clip, spaced from the needle element in a proximal direction along the hub, for frictionally engaging the hub to retain the tubular guard thereupon; the second clip, spaced closer to the needle element along the hub than the first clip, for stabilizing the tubular guard coaxially about the hub.
Claim 2
Dependent Claim
152 words
A protective apparatus mountable to the hub of a medical needle for guarding a needle element projecting from the hub, the apparatus comprising: a tubular guard sized to receive therein a needle element of a medical needle and at least a portion of a hub of the medical needle and axially positionable upon the length of said needle element to extend over and to guard a tip of the needle element; a first and second clip spaced axially along the tubular guard and the hub which first and second clip are inserted into a slotted aperture formed in the tubular guard, the first clip, spaced from the needle element in a proximal direction along the hub, for frictionally engaging the hub to retain the tubular guard thereupon; the second clip, spaced closer to the needle element along the hub than the first clip, for stabilizing the tubular guard coaxially about the hub.
Claim 3
Dependent Claim
53 words
The medical needle protective apparatus according to claim 1 wherein the first clip comprises: an apertured clip encircling the hub and presenting projecting teeth angularly disposed to frictionally engage the hub; an apertured clip encircling the hub and presenting projecting tabs disposed to abut the hub to stabilize the tubular guard coaxially thereabout.
Claim 4
Independent Claim
160 words
A method of fitting a guard onto a medical needle comprising: mounting plural inserts within an end region of a first tubular sleeve, which inserts constrict the internal diameter of the sleeve; sliding the end region of the first tubular sleeve and its inserts axially in a first direction onto a hub of a medical needle until at least one of the plural inserts frictionally engages the hub sufficiently to permanently mount the first tubular sleeve positioned thereupon; attaching a second tubular sleeve to the first tubular sleeve's distal end region for axially reciprocally sliding relative to the first tubular sleeve; defining a plurality of attachment points axially along the end region of the first tubular sleeve; wherein said defining of plurality points additionally comprises: creating a pllurality of slotted apertures axially along the end region of the first tubular sleeves; wherein the mounting of plural inserts comprises mounting plural inserts into respective ones of the plurality of slotted apertures.
Claim 5
Independent Claim
160 words
A method of fitting a guard onto a medical needle comprising: mounting plural inserts within an end region of a first tubular sleeve, which inserts constrict the internal diameter of the sleeve; sliding the end region of the first tubular sleeve and its inserts axially in a first direction onto a hub of a medical needle until at least one of the plural inserts frictionally engages the hub sufficiently to permanently mount the first tubular sleeve positioned thereupon; attaching a second tubular sleeve to the first tubular sleeve's distal end region for axially reciprocally sliding relative to the first tubular sleeve; defining a plurality of attachment points axially along the end region of the first tubular sleeve; wherein said defining of plurality points additionally comprises: creating a pllurality of slotted apertures axially along the end region of the first tubular sleeves; wherein the mounting of plural inserts comprises mounting plural inserts into respective ones of the plurality of slotted apertures.
Claim 6
Independent Claim
146 words
A method of fitting a guard onto a medical needle comprising: mounting plural inserts within an end region of a first tubular sleeve which inserts constrict the internal diameter of the sleeve; sliding the end region of the first tubular sleeve and its inserts axially in a first direction onto a hub of a medical needle until at least one of the plural inserts frictionally engages the hub sufficiently to permanently mount the first tubular sleeve positioned thereupon; attaching a second tubular sleeve to the first tubular sleeve's distal end region for axially reciprocally sliding relative to the first tubular sleeve; forming plural inserts substantially in the shape of an internal tooth lock washer; wherein the teeth of the plural inserts constrict the internal diameter of the first tubular sleeve; wherein at least one of the plural inserts frictionally engages the hub at its internal teeth.
Claim 7
Independent Claim
146 words
A method of fitting a guard onto a medical needle comprising: mounting plural inserts within an end region of a first tubular sleeve which inserts constrict the internal diameter of the sleeve; sliding the end region of the first tubular sleeve and its inserts axially in a first direction onto a hub of a medical needle until at least one of the plural inserts frictionally engages the hub sufficiently to permanently mount the first tubular sleeve positioned thereupon; attaching a second tubular sleeve to the first tubular sleeve's distal end region for axially reciprocally sliding relative to the first tubular sleeve; forming plural inserts substantially in the shape of an internal tooth lock washer; wherein the teeth of the plural inserts constrict the internal diameter of the first tubular sleeve; wherein at least one of the plural inserts frictionally engages the hub at its internal teeth.
Claim 8
Independent Claim
102 words
An apparatus capable of being mounted to a hub of a medical needle in order to guard the tip of the medical needle, the apparatus comprising: a first tubular sleeve; engagement means, retained and carried by the first tubular sleeve, for frictionally engaging a hub of the medical needle in order to mount the first tubular sleeve coaxially thereupon; and a second tubular sleeve sliding from the first tubular sleeve to a sufficient extention so as to guard a tip of the medical needle, said engagement means comprising a clip insert formed substantially in the shape of an internal tooth lock washer.
Claim 9
Independent Claim
102 words
An apparatus capable of being mounted to a hub of a medical needle in order to guard the tip of the medical needle, the apparatus comprising: a first tubular sleeve; engagement means, retained and carried by the first tubular sleeve, for frictionally engaging a hub of the medical needle in order to mount the first tubular sleeve coaxially thereupon; and a second tubular sleeve sliding from the first tubular sleeve to a sufficient extention so as to guard a tip of the medical needle, said engagement means comprising a clip insert formed substantially in the shape of an internal tooth lock washer.
Claim 10
Dependent Claim
27 words
The apparatus according to claim 5 wherein the engagement means comprises teeth formed on the clip insert sized to frictionally engage the hub of the medical needle.
References Cited (Backward Citations)
GB123520A
Cited
US1373669A
Cited
US2592744A
Cited
US2571653A
Cited
US2894509A
Cited
US2847996A
Cited
US2847995A
Cited
US2888923A
Cited
US3306290A
Cited
US3306291A
Cited
US3356089A
Cited
US3485239A
Cited
US3809095A
Cited
US3780734A
Cited
US3884230A
Cited
US3890971A
Cited
US3889673A
Cited
US3905375A
Cited
US4139009A
Cited
US4232669A
Cited
US4266543A
Cited
US4373526A
Cited
US4273123A
Cited
US4266544A
Cited
US4392859A
Cited
US4356822A
Cited
US4425120A
Cited
US4507117A
Cited
US4507117B1
Cited
US4573976A
Cited
US4664259A
Cited
US4676783A
Cited
US4659330A
Cited
US4702739A
Cited
US4631057A
Cited
US4643199A
Cited
US4675005A
Cited
US4723943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-16 | 1993-04-17 | 1993-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-16 | 1997-04-17 | 1997-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-16 | 2001-04-17 | 2001-10-17 | $7700.00 | Window Closed / Lapsed |