US4614187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Needle extractor
Assignee: Individual
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Filing: 1984-04-02
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Granted: 1986-09-30
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Expires: 2004-04-02
Abstract
Abstract A needle extractor is provided for removing elongated surgical needles from within a patient body which comprises a ratchet activated rod member insertable through a cannula and having a hole for grasping and pulling the needle. The cannula is provided with a slim abutting ring to prevent movement of the cannula tip during the extraction process.
Inventors
- 👤 James S. Mulhollan
- 👤 Lionel Starr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:57
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/28; A61B17/29; A61B17/04; A61B17/0469; A61B17/06; A61B17/06161; A61B17/2812; A61B17/2833; A61B2017/2837
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
184 words
A surgical needle extractor for use in extracting elongated surgical needles from a remote, inaccessible location within a patient's body, comprising: means for grasping the tip end of the surgical needle at said remote, inaccessible location comprising a rod member having at least one lateral hole passing through said rod near one end thereof, means for guiding said grasping means to said remote location comprising a cannula extending from an accessible location to said inaccessible location, means for bending and withdrawing said needle from said remote location along said guiding means comprising a ratchet mechanism secured to said cannula to engage said rod member after said tip end of said needle is positioned in said lateral hole, with said lateral hole extending beyond an end of said cannula at said inaccessible location, said engagement of said ratchet mechanism operable to extract said rod member from said cannula and to move said lateral hole to a position immediately adjacent an end of said cannula at said accessible location, and a ring member selectively movably securable to said cannula abuttable against the skin of the patient.
Claim 2
Dependent Claim
184 words
A surgical needle extractor for use in extracting elongated surgical needles from a remote, inaccessible location within a patient's body, comprising: means for grasping the tip end of the surgical needle at said remote, inaccessible location comprising a rod member having at least one lateral hole passing through said rod near one end thereof, means for guiding said grasping means to said remote location comprising a cannula extending from an accessible location to said inaccessible location, means for bending and withdrawing said needle from said remote location along said guiding means comprising a ratchet mechanism secured to said cannula to engage said rod member after said tip end of said needle is positioned in said lateral hole, with said lateral hole extending beyond an end of said cannula at said inaccessible location, said engagement of said ratchet mechanism operable to extract said rod member from said cannula and to move said lateral hole to a position immediately adjacent an end of said cannula at said accessible location, and a ring member selectively movably securable to said cannula abuttable against the skin of the patient.
Claim 3
Dependent Claim
15 words
The device of claim 1 wherein said rod member has two adjacent lateral holes therethrough.
Claim 4
Dependent Claim
150 words
A needle extractor comprising: an elongated cannula member with a first end insertable into a patient's body to a remote, inaccessible location and a second end remaining in an accessible location, a ring member selectively movable securable to said cannula positionable against the skin of the patient, a rod member sized to pass through said cannula and being sufficiently long to extend beyond both ends of said cannula, said rod member having a plurality of equally spaced annular channels formed on an exterior surface thereof and having an end with at least one lateral hole passing therethrough, a ratchet mechanism secured to said cannula to engage with said channels in said rod member to cause withdrawal of said rod member from said cannula and also to cause movement of said hole in said rod member to a position immediately adjacent said second end when said ratchet mechanism is manually operated.
Claim 5
Dependent Claim
150 words
A needle extractor comprising: an elongated cannula member with a first end insertable into a patient's body to a remote, inaccessible location and a second end remaining in an accessible location, a ring member selectively movable securable to said cannula positionable against the skin of the patient, a rod member sized to pass through said cannula and being sufficiently long to extend beyond both ends of said cannula, said rod member having a plurality of equally spaced annular channels formed on an exterior surface thereof and having an end with at least one lateral hole passing therethrough, a ratchet mechanism secured to said cannula to engage with said channels in said rod member to cause withdrawal of said rod member from said cannula and also to cause movement of said hole in said rod member to a position immediately adjacent said second end when said ratchet mechanism is manually operated.
Claim 6
Dependent Claim
14 words
The device of claim 3 wherein said rod member has two holes passing therethrough.
Claim 7
Independent Claim
83 words
A method of extracting an elongated surgical needle from a remote and inaccessible location within a patient's body comprising the steps: establishing visual contact with the area of the tip of the needle, inserting a cannula into the area where the needle tip is located, guiding a needle extractor through said cannula to said remote location, grasping said needle tip with said needle extractor, bending said needle around the end of said cannula, withdrawing said needle extractor and said needle from said cannula.
Claim 8
Independent Claim
83 words
A method of extracting an elongated surgical needle from a remote and inaccessible location within a patient's body comprising the steps: establishing visual contact with the area of the tip of the needle, inserting a cannula into the area where the needle tip is located, guiding a needle extractor through said cannula to said remote location, grasping said needle tip with said needle extractor, bending said needle around the end of said cannula, withdrawing said needle extractor and said needle from said cannula.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-29 | 1990-03-31 | 1990-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-29 | 1994-03-31 | 1994-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-29 | 1998-03-31 | 1998-09-30 | $7700.00 | Window Closed / Lapsed |