US5470308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical probe with biopsy stylet
Assignee: Medtronic Vidamed Inc
•
Filing: 1993-11-19
•
Granted: 1995-11-28
•
Expires: 2013-11-19
Abstract
Abstract A medical probe apparatus comprising a catheter having a stylet guide housing with at least one stylet port in a side thereof and a stylet guide for directing a flexible stylet outward through at least one stylet port and through intervening tissue to targeted tissues. The stylet guide has a biopsy sample device or other tissue manifesting device at the distal end thereof to gather tissue or perform other operations at the point of the desired tissue such as emitting electromagnetic energy as ablative power to target tissues;. One embodiment of the biopsy sample stylet includes a hollow core sampler including a biopsy needle apparatus for gathering sample tissue. The hollow core sampler has a sharpened end for facilitating the penetration into and gathering of the sample tissue. A second embodiment of the biopsy sample stylet includes a harpoon-like sample stylet when the sharp tip thereof allows for easy entry into the target tissue. The sharpened barbed side opening allows for certain desired tissue to be sampled to be drawn into the side opening for individual cell gathering or complete sample excise or gathering of the desired tissue. The third embodiment is a clam shell or alligator type biopsy jaw device whereby the sharpened biopsy tip thereof allows a tissue sample to be clipped or cut upon activation of the stylet jaws. Still another embodiment comprises a biopsy knife device in conjunction with an electromagnetic emitter for selective tissue sampling or electromagnetic heat ablation, or both, of selected tissue.
Inventors
- 👤 Stuart D. Edwards
- 👤 Ronald G. Lax
- 👤 Hugh R. Sharkey
- 👤 Ingemar H. Lundquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:55
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B10/00; A61B10/02; A61B10/0233; A61B10/0266; A61B10/0275; A61B10/06; A61B18/04; A61B18/12; A61B18/14; A61B18/1477; A61B18/1485; A61B18/1815; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/06; A61N1/40; A61N1/403; A61N5/00; A61N5/02; A61N5/04; A61N5/045; A61B10/0241; A61B18/08; A61B18/082; A61B18/1402; A61B18/1442; A61B18/148; A61B18/20; A61B18/22; A61B18/24; A61B17/00; A61B2017/00017; A61B2017/00022; A61B2017/00084; A61B2017/00092; A61B2017/00101; A61B2017/00106; A61B2017/00115; A61B2017/00119; A61B2017/00123; A61B2017/00137; A61B2017/00154; A61B2017/00181; A61B2017/00194; 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; A61B2018/00041; A61B2018/00053; A61B2018/00059; A61B2018/00071; A61B2018/00083; A61B2018/00089; A61B2018/00095; A61B2018/00101; 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; A61B2018/00761; A61B2018/00773; A61B2018/00791; A61B2018/00797; A61B2018/00821; A61B2018/00886; A61B2018/0091; A61B2018/00916; A61B2018/0094; A61B2018/00946; A61B2018/00982; A61B18/1206; A61B2018/1246; A61B2018/1253; A61B2018/126; A61B2018/1273; A61B2018/128; A61B2018/1405; A61B2018/1412; A61B2018/1425; A61B2018/2238; A61B90/00; A61B90/08; A61B2090/0814; A61B90/36; A61B90/361; A61B2090/3614; A61B90/37; A61B2090/378; A61B2090/3782; A61B2090/3786; A61B90/39; A61B2090/3925; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007; 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; A61M3/00; A61M3/02; A61M3/0279
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
80 words
A medical probe comprising a catheter having at least two stylet ports toward the distal end thereof, at least two flexible stylets disposed within the catheter and having sharp distal tips for puncturing tissue, means for advancing the stylets outward through the stylet ports and through intervening tissue to target tissue, means for energizing the stylets to apply ablating power to the target tissue, and means carried by the stylets for cutting and collecting a sample of the target tissue.
Claim 2
Dependent Claim
80 words
A medical probe comprising a catheter having at least two stylet ports toward the distal end thereof, at least two flexible stylets disposed within the catheter and having sharp distal tips for puncturing tissue, means for advancing the stylets outward through the stylet ports and through intervening tissue to target tissue, means for energizing the stylets to apply ablating power to the target tissue, and means carried by the stylets for cutting and collecting a sample of the target tissue.
Claim 3
Dependent Claim
25 words
The medical probe of claim 1 including non-conductive sleeves movable longitudinally of the stylets to expose selected portions of the stylets to the target tissue.
Claim 4
Dependent Claim
78 words
A medical probe apparatus comprising a catheter having a stylet port toward the distal end thereof, a flexible stylet disposed within the catheter and having a sharp distal tip for puncturing tissue, means for advancing the stylet outward through the stylet port and through intervening tissue to target tissue, means for energizing the stylet to apply ablating power to the target tissue, and means carried by the stylet for cutting and collecting a sample of the target tissue.
Claim 5
Dependent Claim
78 words
A medical probe apparatus comprising a catheter having a stylet port toward the distal end thereof, a flexible stylet disposed within the catheter and having a sharp distal tip for puncturing tissue, means for advancing the stylet outward through the stylet port and through intervening tissue to target tissue, means for energizing the stylet to apply ablating power to the target tissue, and means carried by the stylet for cutting and collecting a sample of the target tissue.
Claim 6
Dependent Claim
24 words
The medical probe apparatus of claim 3 wherein the means for energizing the stylet includes means for applying microwave energy to the target tissue.
Claim 7
Dependent Claim
38 words
The medical probe apparatus of claim 3 wherein the stylet is enclosed within a non-conductive sleeve, the stylet and sleeve being movable longitudinally of each other to expose a selected portion of the stylet in the target tissue.
Claim 8
Dependent Claim
68 words
A medical probe apparatus comprising a catheter having a stylet port toward the distal end thereof, a flexible stylet disposed within the catheter and having a sharp distal end for puncturing tissue, means for advancing the stylet outward through the stylet port and through intervening tissue to target tissue, and means near the distal end of the stylet for cutting and collecting a sample of the target tissue.
Claim 9
Dependent Claim
68 words
A medical probe apparatus comprising a catheter having a stylet port toward the distal end thereof, a flexible stylet disposed within the catheter and having a sharp distal end for puncturing tissue, means for advancing the stylet outward through the stylet port and through intervening tissue to target tissue, and means near the distal end of the stylet for cutting and collecting a sample of the target tissue.
Claim 10
Dependent Claim
34 words
The medical probe apparatus of claim 6 wherein the means for cutting and collecting a sample of the target tissue includes a cutting edge which faces away from the distal end of the stylet.
Claim 11
Dependent Claim
55 words
The medical probe apparatus of claim 7 further including a sleeve which surrounds the stylet and is longitudinally extensible and retractable relative to the stylet, the sleeve having a sharpened distal end which cooperates with the cutting edge of the stylet in cutting the target tissue as the stylet is retracted relative to the sleeve.
Claim 12
Dependent Claim
24 words
The medical probe apparatus of claim 7 wherein the means for cutting and collecting a sample of the target tissue comprises a biopsy needle.
Claim 13
Dependent Claim
27 words
The medical probe apparatus of claim 7 wherein the means for cutting and collecting a sample of the target tissue comprises a clam shell or jaw stylet.
Claim 14
Dependent Claim
34 words
The medical probe apparatus of claim 3 wherein the means for cutting and collecting a sample of the target tissue includes a cutting edge which faces rearwardly from the distal end of the stylet.
Claim 15
Dependent Claim
24 words
The medical probe apparatus of claim 11 wherein the means for cutting and collecting a sample of the target tissue comprises a biopsy needle.
Claim 16
Dependent Claim
34 words
The medical probe apparatus of claim 1 wherein the means for cutting and collecting a sample of the target tissue includes a cutting edge which faces rearwardly from the distal end of the stylet.
Claim 17
Dependent Claim
28 words
The medical probe apparatus of claim 11 wherein the means for cutting and collecting a sample of the target tissue comprises a clam shell or alligator tooth apparatus.
Claim 18
Dependent Claim
25 words
The medical probe apparatus of claim 11 wherein the means for cutting and collecting a sample of the target tissue comprises a core sampling apparatus.
Claim 19
Dependent Claim
39 words
The medical probe apparatus of claim 11 wherein the means for cutting and collecting a sample of the target tissue comprises a hollow tube having a sharpened end for facilitating penetration into the tissue and collection of the sample.
Claim 20
Dependent Claim
81 words
The medical probe apparatus of claim 7 wherein the stylet is enclosed within an insulating sleeve which is longitudinally movable relative to the stylet to expose a selected portion of the stylet to the target tissue, and the stylet comprises a hollow tube having an aperture along the lateral side thereof toward the distal end of said tube, together with means for applying a negative pressure to the hollow tube to draw a tissue sample into the tube through the aperture.
Claim 21
Dependent Claim
51 words
The medical apparatus claim 17 wherein the cutting edge is positioned at one end of the aperture, and the insulating sleeve has a sharpened tip end which cooperates with the cutting edge of the tube to cut the sample from the target tissue as the tube is withdrawn into the sleeve.
Claim 22
Dependent Claim
27 words
The medical probe apparatus of claim 7 wherein means for cutting and collecting a sample of the target tissue comprises a clam shell or alligator tooth apparatus.
Claim 23
Dependent Claim
88 words
The medical probe apparatus of claim 7 wherein the stylet is enclosed within an insulating sleeve, the stylet and the sleeve being movable longitudinally of each other to expose a selected portion of the stylet surface, the means for cutting and collecting a sample of the target tissue comprises a clam shell or alligator tooth biopsy device which is opened when [deployed by the longitudinal movement of the stylus is extended longitudinally relative to the sleeve and closed when the stylet is withdrawn relative to the insulating sleeve.
Claim 24
Dependent Claim
64 words
The medical probe apparatus of claim 7 wherein the stylet is enclosed within an insulating sleeve, the stylet and the sleeve being movable longitudinally of each other to expose a selected portion of the stylet, and the means for cutting and collecting a sample of the target tissue comprises a hollow tube having a sharp, barbed distal end for cutting and gathering the sample.
Claim 25
Dependent Claim
22 words
The medical probe apparatus of claim 17 further including means for energizing the stylet to apply ablating power to the target tissue.
Claim 26
Dependent Claim
45 words
The medical probe apparatus of claim 22 including an antenna wire curled around the insulating sleeve from the proximal end to the distal end of said sleeve, and electromagnetic antenna means coupled to the antenna wire and capable of being deployed from the insulating sleeve.
References Cited (Backward Citations)
US32066A
Cited
US1950788A
Cited
US1879249A
Cited
US1968997A
Cited
US2022065A
Cited
US2047535A
Cited
US2008526A
Cited
US2118631A
Cited
US2710000A
Cited
US3230957A
Cited
US3339542A
Cited
US3556079A
Cited
US3682162A
Cited
US3598108A
Cited
US3595239A
Cited
US3840016A
Cited
US3884237A
Cited
US3835842A
Cited
US3850175A
Cited
US3924628A
Cited
US3828780A
Cited
US3939840A
Cited
US3942530A
Cited
US3991770A
Cited
US4011872A
Cited
US3858577A
Cited
US3948270A
Cited
US4119102A
Cited
US4121592A
Cited
US4137920A
Cited
US4312364A
Cited
US4136566A
Cited
US4154246A
Cited
US4228809A
Cited
US4224929A
Cited
DE2848484C2
Cited
US4204549A
Cited
US4237898A
Cited
DE2941060C2
Cited
US4311154A
Cited
US4402311A
Cited
US4295467A
Cited
US4448198A
Cited
US4267828A
Cited
US4311145A
Cited
US4307720A
Cited
US4375220A
Cited
US4411266A
Cited
US4565200A
Cited
US4805616A
Cited
US4562838A
Cited
US4452236A
Cited
US4397314A
Cited
DE3247793C2
Cited
US4568329A
Cited
US4470407A
Cited
US4494539A
Cited
DE3218314C2
Cited
US4405314A
Cited
US4676258A
Cited
US4774949A
Cited
US4672962A
Cited
US4601296A
Cited
US4798215A
Cited
US4612940A
Cited
US4682596A
Cited
US4781186A
Cited
US4552554A
Cited
US4697595A
Cited
US4706681A
Cited
US4800899A
Cited
US4580551A
Cited
US4817601A
Cited
US4594074A
Cited
US4660560A
Cited
US4658836A
Cited
US4669475A
Cited
US4681122A
Cited
US4785829A
Cited
US4818954A
Cited
US4776086A
Cited
US5057106A
Cited
US4700716A
Cited
US4822333A
Cited
US4813429A
Cited
US4823812A
Cited
US4709698A
Cited
US4949706A
Cited
US4872458A
Cited
US4753223A
Cited
US4940064A
Cited
US4893623A
Cited
US4946449A
Cited
US4719914A
Cited
US4765331A
Cited
US5003991A
Cited
US4823791A
Cited
US4905667A
Cited
US4943290A
Cited
US4906230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-11-27 | 1999-05-29 | 1999-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-11-27 | 2003-05-29 | 2003-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-11-27 | 2007-05-29 | 2007-11-28 | $7700.00 | Window Closed / Lapsed |