US6010487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety needle apparatus and method
Assignee: SAFEGUARD IV LLC
•
Filing: 1998-06-22
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Granted: 2000-01-04
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Expires: 2018-06-22
Abstract
Abstract Disclosed is a safety catheter that automatically sheaths the needle upon withdrawal of the needle from a patient. The catheter can include a plunger for drawing a vacuum to draw blood or alternatively may delete the plunger and use nearly identical components with the addition of a blocking plug. The catheter also includes a cap/re-cap device that provides additional sheathing of the needle during assembly, shipping, and use of the needle. It also includes raised indicia that serves as a trademark as well as a friction gripping surface. The catheter includes improved catheter hub mounting structure as well as strengthened ribbed areas for grasping during use of the catheter.
Inventors
- 👤 Louis R. DeMichele
- 👤 John L. DeMichele
- 👤 Michael B. McDonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:06
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0612; A61M25/0631; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/3205; A61M5/321; A61M5/322
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
155 words
An improved needle apparatus comprising in combination: a. a first housing having a first end; b. a needle secured to said first housing, extending beyond said first end, and having a point which can be injected into a patient; c. a second housing movably captured with respect to said first housing, said second housing having a first end and an opposite end; and d. a removable cap adapted for engaging said first housing to provide a sheath for said needle, and also adapted for engaging said second housing to provide a sheath for said needle; wherein said first housing and needle are manually movable, with respect to said second housing, between a needle exposing position at which said needle point is outside said second housing, and a needle sheathing position at which said point is withdrawn into said second housing after said needle is fully withdrawn from a patient to prevent an accidental needle stick.
Claim 2
Dependent Claim
155 words
An improved needle apparatus comprising in combination: a. a first housing having a first end; b. a needle secured to said first housing, extending beyond said first end, and having a point which can be injected into a patient; c. a second housing movably captured with respect to said first housing, said second housing having a first end and an opposite end; and d. a removable cap adapted for engaging said first housing to provide a sheath for said needle, and also adapted for engaging said second housing to provide a sheath for said needle; wherein said first housing and needle are manually movable, with respect to said second housing, between a needle exposing position at which said needle point is outside said second housing, and a needle sheathing position at which said point is withdrawn into said second housing after said needle is fully withdrawn from a patient to prevent an accidental needle stick.
Claim 3
Dependent Claim
33 words
The needle apparatus of claim 1, wherein said needle has an axially extending internal passage, and said second housing includes a generally cylindrical internal wall defining a chamber communicating with said internal passage.
Claim 4
Dependent Claim
29 words
The needle apparatus of claim 2, further comprising a plunger disposed within said generally cylindrical internal wall and slidably engaging said generally cylindrical internal wall to define a piston.
Claim 5
Dependent Claim
37 words
The needle apparatus of claim 3, further comprising a plunger rod having a first portion secured to said plunger and a second portion accessible to a user for sliding said plunger within said generally cylindrical internal wall.
Claim 6
Dependent Claim
35 words
The needle apparatus of claim 1, further comprising a catheter, wherein said needle is inserted through said catheter when in said needle exposing position and removed from said catheter when in said needle sheathing position.
Claim 7
Dependent Claim
25 words
The needle apparatus of claim 1, wherein the opposite end of said second housing is disposed within at least a portion of said first housing.
Claim 8
Dependent Claim
30 words
The needle apparatus of claim 1, wherein said cap has a first end adapted for engaging said first housing to provide a sheath for said needle and a second end.
Claim 9
Dependent Claim
35 words
The needle apparatus of claim 1, wherein said cap has a first end and a second end, wherein said second end is adapted for engaging said second housing to provide a sheath for said needle.
Claim 10
Dependent Claim
43 words
The needle apparatus of claim 1, wherein said cap has a first end adapted for engaging said first housing to provide a sheath for said needle and a second end adapted for engaging said second housing to provide a sheath for said needle.
Claim 11
Dependent Claim
12 words
The needle apparatus of claim 1, wherein said cap is one piece.
Claim 12
Dependent Claim
28 words
The needle apparatus of claim 1, wherein at least one of said first and second housings has an exterior portion accessible for grasping and provided with a grip.
Claim 13
Dependent Claim
18 words
The needle apparatus of claim 1, wherein said grip is formed by raised indicia on said exterior portion.
Claim 14
Dependent Claim
202 words
An improved needle apparatus comprising in combination: a. a first housing having a first end; b. a needle having an axially extending internal passage, wherein said needle is secured to said first housing, extends beyond said first end, and has a point which can be injected into a patient; c. a second housing movably captured with respect to said first housing, said second housing having a first end and an opposite end, said second housing including a generally cylindrical internal wall defining a chamber communicating with said internal passage; d. a plunger disposed within said generally cylindrical internal wall and slidably engaging said generally cylindrical internal wall to define a piston; and e. a plunger rod having a first portion secured to said plunger and a second portion accessible to a user for sliding said plunger within said generally cylindrical internal wall; wherein said first housing and needle are manually movable, with respect to said second housing, between a needle exposing position at which said needle point is outside said second housing, and a needle sheathing position at which said point is withdrawn into said second housing after said needle is fully withdrawn from a patient to prevent an accidental needle stick.
Claim 15
Dependent Claim
202 words
An improved needle apparatus comprising in combination: a. a first housing having a first end; b. a needle having an axially extending internal passage, wherein said needle is secured to said first housing, extends beyond said first end, and has a point which can be injected into a patient; c. a second housing movably captured with respect to said first housing, said second housing having a first end and an opposite end, said second housing including a generally cylindrical internal wall defining a chamber communicating with said internal passage; d. a plunger disposed within said generally cylindrical internal wall and slidably engaging said generally cylindrical internal wall to define a piston; and e. a plunger rod having a first portion secured to said plunger and a second portion accessible to a user for sliding said plunger within said generally cylindrical internal wall; wherein said first housing and needle are manually movable, with respect to said second housing, between a needle exposing position at which said needle point is outside said second housing, and a needle sheathing position at which said point is withdrawn into said second housing after said needle is fully withdrawn from a patient to prevent an accidental needle stick.
Claim 16
Dependent Claim
35 words
The needle apparatus of claim 13, further comprising a catheter, wherein said needle is inserted through said catheter when in said needle exposing position and removed from said catheter when in said needle sheathing position.
Claim 17
Dependent Claim
25 words
The needle apparatus of claim 13, wherein the opposite end of said second housing is disposed within at least a portion of said first housing.
Claim 18
Dependent Claim
28 words
The needle apparatus of claim 13, wherein at least one of said first and second housings has an exterior portion accessible for grasping and provided with a grip.
Claim 19
Dependent Claim
18 words
The needle apparatus of claim 16, wherein said grip is formed by raised indicia on said exterior portion.
References Cited (Backward Citations)
US4573975A
Cited
US4778453A
Cited
US4846811A
Cited
US4834718A
Cited
US4944725A
Cited
US4846805A
Cited
US4850996A
Cited
US5088988A
Cited
US4872552A
Cited
US5407431A
Cited
US5474534A
Cited
US5769827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-01-03 | 2003-07-05 | 2004-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-01-03 | 2007-07-05 | 2008-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-01-03 | 2011-07-05 | 2012-01-04 | $7700.00 | Window Closed / Lapsed |