US5139486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dilator/introducer for percutaneous gastrostomy
Assignee: MOSS TUBES Inc
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Filing: 1991-01-02
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Granted: 1992-08-18
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Expires: 2011-01-02
Abstract
Abstract An improved dilator/introducer used to facilitate the placement of a catheter within an internal area of a body. The introducer portion of the device has a tapered and bevelled forward end. The dilator portion of the device has a longitudinally extending slot located proximate its rearward end to provide a side exit point for a "J"-wire. Optionally, a plug also having a slot can be received within the rearward end of the dilator to provide an enlarged, smooth surface area that can receive pressure from the palm area of the inserter's hand.
Inventors
- 👤 Gerald Moss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:26
CPC Classifications
A; A61; A61J; A61J15/00; A61J15/0015; A61J15/0023; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0662; A61J15/0003; A61J15/0007
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
124 words
A dilator/introducer for facilitating the placement of a catheter within a body, said dilator/introducer comprising: a needle shaped introducer having a forward end, a rearward end, a throughbore extending between said forward and rearward ends and wherein said forward end is tapered; and a needle shaped dilator sized to be received within said introducer and having a forward tapered end, a rearward end, an exterior surface, a throughbore extending between said forward and rearward ends and a longitudinally extending slot means located proximate said rearward end and extending between said exterior surface and a rear portion of said dilator throughbore wherein when a wire is located within said dilator throughbore, a portion of said wire can exit from said throughbore via said slot means.
Claim 2
Dependent Claim
124 words
A dilator/introducer for facilitating the placement of a catheter within a body, said dilator/introducer comprising: a needle shaped introducer having a forward end, a rearward end, a throughbore extending between said forward and rearward ends and wherein said forward end is tapered; and a needle shaped dilator sized to be received within said introducer and having a forward tapered end, a rearward end, an exterior surface, a throughbore extending between said forward and rearward ends and a longitudinally extending slot means located proximate said rearward end and extending between said exterior surface and a rear portion of said dilator throughbore wherein when a wire is located within said dilator throughbore, a portion of said wire can exit from said throughbore via said slot means.
Claim 3
Dependent Claim
18 words
The dilator/introducer of claim 1 further comprising a stopper member attached to the rearward end of the dilator.
Claim 4
Dependent Claim
45 words
The dilator/introducer of claim 2 wherein the stopper member is a plug that has a forward end of a first diameter and a rearward end of a second diameter and wherein said first diameter is substantially equal to an interior diameter of the dilator throughbore.
Claim 5
Dependent Claim
29 words
The dilator/introducer of claim 3 wherein the diameter of the rearward end of said plug is at least equal to the diameter of the rearward end of said dilator.
Claim 6
Dependent Claim
59 words
The dilator/introducer of claim 2 wherein said stopper member comprises a longitudinal slot that extends the length of said member wherein said slot of said member can be aligned with the dilator slot means and thereby allow a wire exiting from said dilator slot means to be moved rearwardly and exit from a rear face of said stopper member.
Claim 7
Dependent Claim
115 words
A dilator/introducer for facilitating the placement of a catheter within a body, said dilator/introducer comprising: a tubular introducer having a forward end, a rearward end, and a throughbore extending between said forward and rearward ends; and a needle shaped dilator sized to be received within said introducer and having a forward tapered end, a rearward end, an exterior surface, a throughbore extending between said forward and rearward ends and a longitudinally extending slot located proximate said rearward end and extending between said exterior surface and a rear portion of said dilator throughbore wherein when a wire is located within said dilator throughbore, a portion of said wire can exit from said throughbore via said slot.
Claim 8
Dependent Claim
115 words
A dilator/introducer for facilitating the placement of a catheter within a body, said dilator/introducer comprising: a tubular introducer having a forward end, a rearward end, and a throughbore extending between said forward and rearward ends; and a needle shaped dilator sized to be received within said introducer and having a forward tapered end, a rearward end, an exterior surface, a throughbore extending between said forward and rearward ends and a longitudinally extending slot located proximate said rearward end and extending between said exterior surface and a rear portion of said dilator throughbore wherein when a wire is located within said dilator throughbore, a portion of said wire can exit from said throughbore via said slot.
Claim 9
Dependent Claim
18 words
The dilator/introducer of claim 6 further comprising a stopper member attached to a rear portion of said dilator.
Claim 10
Dependent Claim
44 words
The dilator/introducer of claim 7 wherein the stopper member is a plug that has a forward end of a first diameter and a rearward end of a second diameter wherein said first diameter is substantially equal to an interior diameter of the dilator throughbore.
Claim 11
Dependent Claim
29 words
The plug of claim 8 wherein the diameter of the rearward end of said plug is at least equal to the diameter of the rearward end of said dilator.
Claim 12
Dependent Claim
56 words
The dilator/introducer of claim 7 wherein said stopper member further comprises a longitudinal slot that extends the length of said member wherein said member slot can be aligned with the dilator slot and thereby allow a wire exiting from said dilator slot to be moved rearwardly and exit from a rear face of said stopper member.
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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) | 1995-08-18 | 1996-02-17 | 1996-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-18 | 2000-02-17 | 2000-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-18 | 2004-02-17 | 2004-08-18 | $7700.00 | Window Closed / Lapsed |