US20060079774A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave biopsy probe
Assignee: Agilent Technologies Inc
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Filing: 2004-10-08
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Granted: —
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Expires: 2024-10-08
Abstract
Abstract A biopsy probe includes an impedance probe slidably disposed within a biopsy needle.
Inventors
- 👤 Wendell Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:07
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/05; A61B5/053; A61B5/0538; A61B10/00; A61B10/0041; A61B10/02; A61B10/0233; A61B5/0507; A61B10/04; A61B2010/045; A61B2560/00; A61B2560/02; A61B2560/0223; A61B2560/0228
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
19 words
1 . A biopsy probe comprising: a biopsy needle, and an impedance probe slidably disposed within the biopsy needle.
Claim 2
Dependent Claim
19 words
1 . A biopsy probe comprising: a biopsy needle, and an impedance probe slidably disposed within the biopsy needle.
Claim 3
Dependent Claim
30 words
2 . The biopsy probe of claim 1 wherein the impedance probe is a coaxial cable having a center conductor end and an outer conductor end comprising a biocompatible metal.
Claim 4
Dependent Claim
29 words
3 . The biopsy probe of claim 1 wherein the impedance probe is a coaxial cable having a center conductor end and an outer conductor end plated with nickel.
Claim 5
Dependent Claim
28 words
4 . The biopsy probe of claim 1 wherein the impedance probe has a low-loss dielectric material disposed between a metal outer conductor and a metal center conductor.
Claim 6
Dependent Claim
44 words
5 . The biopsy probe of claim 1 wherein the impedance probe has a thinned outer conductor portion; a thinned center conductor portion; and a dielectric sealant disposed between the thinned outer conductor portion and the thinned center conductor portion of the impedance probe.
Claim 7
Dependent Claim
49 words
6 . The biopsy probe of claim 5 wherein the dielectric sealant has a first thermal expansion coefficient and the thinned outer conductor portion has a second thermal expansion coefficient, a difference between the first thermal expansion coefficient and the second thermal expansion coefficient being less than 5 ppm.
Claim 8
Dependent Claim
14 words
7 . The biopsy probe of claim 5 wherein the dielectric sealant comprises epoxy.
Claim 9
Dependent Claim
23 words
8 . The biopsy probe of claim 5 further comprising a groove in the thinned outer conductor portion filled with the dielectric sealant.
Claim 10
Dependent Claim
22 words
9 . The biopsy probe of claim 1 wherein an outer diameter of the impedance probe is not greater than 0.79 mm.
Claim 11
Dependent Claim
20 words
10 . The biopsy probe of claim 9 wherein the biopsy needle is not larger than an 18 gauge needle.
Claim 12
Dependent Claim
52 words
11 . The biopsy probe of claim 1 further comprising: a handle; a probe head; a carriage movably coupled to the probe head having a clamp configured to removably secure the biopsy needle to the carriage; and a first microwave port configured to removably secure the impedance probe to the probe head.
Claim 13
Dependent Claim
20 words
12 . The biopsy probe of claim 11 further comprising a second microwave port having a microwave test cable interface.
Claim 14
Dependent Claim
20 words
13 . The biopsy probe of claim 11 further comprising an electronic calibration module in the automated biopsy impedance probe.
Claim 15
Dependent Claim
35 words
14 . The biopsy probe of claim 11 further comprising an electronic motor coupled to the carriage and to the probe head capable of extending and retracting the carriage with respect to the probe head.
Claim 16
Dependent Claim
42 words
15 . The biopsy probe of claim 11 wherein the electric motor is a linear stepper motor configured to automatically retract the carriage a selected distance so as to expose a selected amount of the impedance probe extending from the biopsy needle.
Claim 17
Dependent Claim
36 words
16 . The biopsy probe of claim 15 wherein a tip of the impedance probe extends about 2 mm to about 5 mm beyond a cutting point of the biopsy needle when the carriage is retracted.
Claim 18
Dependent Claim
35 words
17 . The biopsy probe of claim 15 wherein the linear stepper motor is configured to automatically extend the biopsy needle from a retracted position so as to cover a tip of the impedance probe.
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