Patent US5409004A successfully refreshed from Google Patents.
US5409004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Localization device with radiopaque markings
Assignee: Cook Medical Technologies LLC
•
Filing: 1994-04-06
•
Granted: 1995-04-25
•
Expires: 2014-04-06
Abstract
Abstract The present invention involves the localization of lesion tissue within the breast. A surgical guidewire or needle includes a plurality of visual and radiopaque markers along its axial length so that the position of the lesion tissue may be determined in relation to the markers. In one form, the markers are portions extending from the guidewire or needle. In a second form, the markers are grooves formed in the guidewire or needle. The markers are disposed at predetermined distances of about one centimeter, and are differentiable so that the needle or guidewire serves as a metered marker perceptible in a mammogram or visually during surgery.
Inventors
- 👤 Dale A. Sloan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/58; A61B6/582; A61B6/583; A61B6/50; A61B6/502; A61B90/00; A61B90/39; A61B2090/3904; A61B2090/3908; A61B2090/3937
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
77 words
An apparatus for determining the location of lesions within tissue, said apparatus comprising: an elongated body adapted to be implanted in the tissue; and a plurality of indicia means located at predetermined locations on said elongated body, said indicia means being radiopaque, each one of said indicia means being distinctly perceptible and differentiable from any other of said indicia means, whereby the location of lesions radiographically detected may be determined relative to the axis of said body.
Claim 2
Independent Claim
77 words
An apparatus for determining the location of lesions within tissue, said apparatus comprising: an elongated body adapted to be implanted in the tissue; and a plurality of indicia means located at predetermined locations on said elongated body, said indicia means being radiopaque, each one of said indicia means being distinctly perceptible and differentiable from any other of said indicia means, whereby the location of lesions radiographically detected may be determined relative to the axis of said body.
Claim 3
Dependent Claim
13 words
The apparatus of claim 1 wherein said indicia means are also visually perceptible.
Claim 4
Dependent Claim
18 words
The apparatus of claim 1 wherein said body includes anchor means for embedding said body within the tissue.
Claim 5
Dependent Claim
19 words
The apparatus of claim 3 wherein said anchor means includes a barb located at one end of said body.
Claim 6
Dependent Claim
19 words
The apparatus of claim 3 wherein said anchor means includes a hook located at one end of said body.
Claim 7
Dependent Claim
19 words
The apparatus of claim 1 wherein one of said indicia means comprises a marker portion extending from said body.
Claim 8
Dependent Claim
19 words
The apparatus of claim 1 wherein one of said indicia means comprises a marker groove formed within said body.
Claim 9
Dependent Claim
20 words
The apparatus of claim 1 wherein said plurality of indicia means includes at least two markers which are radiographically differentiable.
Claim 10
Dependent Claim
28 words
The apparatus of claim 8 wherein one of said markers indicates a single unit axial length, and the other of said markers indicates a multiple unit axial length.
Claim 11
Dependent Claim
16 words
The apparatus of claim 1 wherein said predetermined locations are spaced apart by approximately one centimeter.
Claim 12
Independent Claim
131 words
An apparatus for determining the location of lesions within tissue, said apparatus comprising: an elongated body; an anchor portion disposed at one end of said body, said anchor portion adapted to embed said body with the tissue; and a plurality of indicia means located at predetermined, periodic locations on said elongated body, said indicia means being visually perceptible and radiopaque, each one of said indicia means being distinctly perceptible and differentiable from any other of said indicia means, said plurality of indicia means being of sufficient number to extend on said body to outside of the tissue, so that the location of lesions radiographically detected may be determined relative to the axis of said body and the distance of the lesions to the skin of the tissue may thereby be determined.
Claim 13
Independent Claim
131 words
An apparatus for determining the location of lesions within tissue, said apparatus comprising: an elongated body; an anchor portion disposed at one end of said body, said anchor portion adapted to embed said body with the tissue; and a plurality of indicia means located at predetermined, periodic locations on said elongated body, said indicia means being visually perceptible and radiopaque, each one of said indicia means being distinctly perceptible and differentiable from any other of said indicia means, said plurality of indicia means being of sufficient number to extend on said body to outside of the tissue, so that the location of lesions radiographically detected may be determined relative to the axis of said body and the distance of the lesions to the skin of the tissue may thereby be determined.
Claim 14
Dependent Claim
19 words
The apparatus of claim 11 wherein said anchor portion includes a barb located at one end of said body.
Claim 15
Dependent Claim
19 words
The apparatus of claim 11 wherein said anchor portion includes a hook located at one end of said body.
Claim 16
Dependent Claim
19 words
The apparatus of claim 11 wherein one of said indicia means comprises a marker portion extending from said body.
Claim 17
Dependent Claim
19 words
The apparatus of claim 11 wherein one of said indicia means comprises a marker groove formed within said body.
Claim 18
Dependent Claim
20 words
The apparatus of claim 11 wherein said plurality of indicia means includes at least two markers which are radiographically differentiable.
Claim 19
Dependent Claim
28 words
The apparatus of claim 16 wherein one of said markers indicates a single unit axial length, and the other of said markers indicates a multiple unit axial length.
Claim 20
Dependent Claim
16 words
The apparatus of claim 11 wherein said predetermined locations are spaced apart by approximately one centimeter.
Claim 21
Independent Claim
123 words
The method of determining the location of lesion tissue to be removed during surgery, said method comprising the steps of: providing an elongated needle having a hollow axial center; providing a guidewire adapted to traverse the hollow axial center of the needle, the guidewire including a plurality of indicia means disposed along the axial length of the guidewire, each one of said indicia means being distinctly perceptible and differentiable from any other of said indicia means; inserting the needle into the body adjacent to the lesion tissue; depositing the guidewire into the body through the needle; taking a radiogram when the guidewire is within the body; and determining the axial position of the lesion tissue relative to the indicia means on the guidewire.
Claim 22
Independent Claim
123 words
The method of determining the location of lesion tissue to be removed during surgery, said method comprising the steps of: providing an elongated needle having a hollow axial center; providing a guidewire adapted to traverse the hollow axial center of the needle, the guidewire including a plurality of indicia means disposed along the axial length of the guidewire, each one of said indicia means being distinctly perceptible and differentiable from any other of said indicia means; inserting the needle into the body adjacent to the lesion tissue; depositing the guidewire into the body through the needle; taking a radiogram when the guidewire is within the body; and determining the axial position of the lesion tissue relative to the indicia means on the guidewire.
Claim 23
Independent Claim
94 words
A method of determining the location of lesion tissue to be removed during surgery, said method comprising the steps of: providing an elongated needle having a plurality of indicia means disposed along the axial length of the needle, each one of said indicia means being distinctly perceptible and differentiable from any other of said indicia means; inserting the needle into the body adjacent to the lesion tissue; taking a radiogram when the needle is within the body; and determining the axial position of the lesion tissue relative to the indicia means on the needle.
Claim 24
Independent Claim
94 words
A method of determining the location of lesion tissue to be removed during surgery, said method comprising the steps of: providing an elongated needle having a plurality of indicia means disposed along the axial length of the needle, each one of said indicia means being distinctly perceptible and differentiable from any other of said indicia means; inserting the needle into the body adjacent to the lesion tissue; taking a radiogram when the needle is within the body; and determining the axial position of the lesion tissue relative to the indicia means on the needle.
References Cited (Backward Citations)
US2922420A
Cited
US4058114A
Cited
US4582061A
Cited
US4727565A
Cited
US4841967A
Cited
US4691333A
Cited
US4875478A
Cited
US5059197A
Cited
US5078142A
Cited
US5056523A
Cited
US5158084A
Cited
US5142557A
Cited
US5253653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-04-24 | 1998-10-24 | 1999-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-24 | 2002-10-24 | 2003-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-24 | 2006-10-24 | 2007-04-25 | $7700.00 | Window Closed / Lapsed |