EP0893101A2
Expired / Lapsed
EP
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Medical probe device and method
Assignee: Medtronic Vidamed Inc
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Filing: 1993-08-11
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Granted: —
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Expires: 2013-08-11
Abstract
Abstract A medical probe device comprises a catheter (48) having a stylet guide housing (50) with one or more stylet ports (140) in a side wall thereof and a stylet guide (16) for directing a flexible stylet (17) outward through the stylet port and through intervening tissue at a preselected adjustable angle to a target tissue. The total catheter assembly includes a stylet guide lumen (61) communicating with the stylet port and a stylet positioned in said stylet guide lumen for longitudinal movement from the port through intervening tissue to a target tissue. The stylet can be an electrical conductor enclosed within a non-conductive layer (60), the electrical conductor being a radiofrequency electrode. <IMAGE>
Inventors
- 👤 Stuart D. Edwards
- 👤 Ronald G. Lax
- 👤 Ingemar H. Lundquist
- 👤 Hugh R. Sharkey
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 22:51
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/02; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1477; A61B18/1485; A61B18/18; A61B18/1815; A61N1/00; A61N1/02; A61N1/04; A61N1/06; A61N1/40; A61N1/403; A61N5/04; A61N5/045; A61B10/00; A61B10/02; A61B10/0233; A61B10/0241; A61B18/08; A61B18/082; A61B18/1206; A61B18/148; A61B18/20; A61B18/22; A61B18/24; A61B17/00; A61B2017/00017; A61B2017/00022; A61B2017/00084; A61B2017/00092; A61B2017/00106; A61B17/00234; A61B2017/00238; A61B2017/00274; A61B2017/00292; A61B2017/003; A61B2017/00831; A61B2017/00867; A61B17/22; A61B2017/22072; A61B2017/22074; A61B2017/22077; A61B2017/22082; A61B17/24; A61B2017/248; A61B17/28; A61B17/29; A61B2017/2926; A61B2017/2932; A61B2017/2939; A61B17/34; A61B2017/348; A61B2017/3482; A61B2017/3484; A61B2017/3488; A61B2018/00005; A61B2018/00011; A61B2018/00053; A61B2018/00059; A61B2018/00071; A61B2018/00083; A61B2018/00089; A61B2018/00095; A61B2018/00184; A61B2018/00196; A61B2018/00214; A61B2018/0022; A61B2018/00315; A61B2018/00547; A61B2018/00571; A61B2018/00577; A61B2018/00636; A61B2018/00666; A61B2018/00678; A61B2018/00696; A61B2018/00702; A61B2018/00726; A61B2018/00744; A61B2018/0075; A61B2018/00761; A61B2018/00773; A61B2018/00791; A61B2018/00797; A61B2018/00821; A61B2018/00869; A61B2018/00886; A61B2018/0091; A61B2018/00916; A61B2018/0094; A61B2018/00946; A61B2018/00982; A61B2018/1246; A61B2018/1253; A61B2018/126; A61B2018/1273; A61B2018/128; A61B2018/1405; A61B2018/1412; A61B2018/1425; A61B2018/1861; A61B2018/2238; A61B90/00; A61B90/08; A61B2090/0814; A61B90/36; A61B90/361; A61B2090/3614; A61B90/37; A61B2090/378; A61B2090/3782; A61B90/39; A61B2090/3925; A61F; A61F7/00; A61F2007/0054; A61M; A61M25/00; A61M25/0067; A61M25/0082; A61M25/0084; A61M2025/0085; A61M2025/0086; A61M2025/0087; A61M2025/0089; A61M2025/009; A61M2025/0096; A61M25/01; A61M2025/018; A61M25/0068; A61M25/0069; A61M25/008
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
84 words
A medical probe device comprising a catheter having
a control end and a probe end, the probe end including a
stylet guide housing having one or more stylet ports in a
side wall thereof and guide means for directing a flexible
stylet outward through the stylet port and through
intervening tissue to a target tissue, wherein the stylet
comprises an RF electrode, microwave antenna, or cannula
with a tube for fluid supply or aspiration or fiber optic
for viewing, temperature detection or laser treatment.
Claim 2
Dependent Claim
90 words
A medical probe device of Claim 1 comprising a
catheter having a control end and a probe end, the probe end
including a stylet guide housing having at least one stylet
port in a side thereof and stylet guide means for directing
a flexible stylet outward through at least one stylet port
and through intervening tissue to a target tissue, a stylet
positioned in at least one of said stylet guide means, the
stylet comprising an electrical conductor enclosed within a
non-conductive sleeve, the electrical conductor being a
radiofrequency electrode.
Claim 3
Dependent Claim
18 words
A medical probe of claim 2 wherein the electrode is
a tube having an axial lumen extending therethrough.
Claim 4
Dependent Claim
15 words
A medical probe of Claim 2 wherein the electrical
conductor is a highly flexible metal.
Claim 5
Dependent Claim
14 words
A medical probe of Claim 4 wherein the highly
flexible metal is nickel-titanium alloy.
Claim 6
Dependent Claim
30 words
A medical probe of Claim 1 wherein the stylet
guide housing includes two of said stylet ports positioned
approximately in a plane perpendicular to the central axis
of the housing.
Claim 7
Dependent Claim
29 words
A medical probe of Claim 1 including a temperature
sensor means mounted on the stylet guide housing for
indicating the temperature in the tissue adjacent to the
guide housing.
Claim 8
Dependent Claim
33 words
A medical probe of Claim 1 including a
temperature sensor means mounted on the distal end of
the nonconductive sleeve for indicating the temperature
of tissue at the distal end of the sleeve.
Claim 9
Dependent Claim
34 words
A medical probe of Claim 1 wherein the stylet
guide means defines a stylet path from an axial
orientation in the catheter through a curved portion to
a lateral orientation at the stylet port.
Claim 10
Dependent Claim
33 words
A medical probe of Claim 1 in combination with at
least one grounding plate, the grounding plate being
adapted to draw electrical current passing from the
electrodes through target tissue to be ablated.
References Cited (Backward Citations)
No citation records indexed.
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