US6136014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Percutaneous tissue removal device
Assignee: Covidien LP
•
Filing: 1998-09-01
•
Granted: 2000-10-24
•
Expires: 2018-09-01
Abstract
Abstract This is a device for percutaneous tissue sampling or excision. In particular, it uses a rotating cutter which produces a helically cut, discrete tissue mass that is removable through a comparatively much smaller access member. The tissue mass is easily reconstructed to its original form and orientation once taken from the body for further study.
Inventors
- 👤 D. Laksen Sirimanne
- 👤 Douglas S. Sutton
- 👤 Natalie V. Fawzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:59
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0233; A61B10/0266; A61B17/00; A61B17/28; A61B17/29; A61B17/32; A61B17/320016; A61B17/32002; A61B17/3205; A61B17/32056; A61B17/34; A61B2017/00681; A61B2017/00685; A61B2017/00831; A61B2017/00867; A61B2017/32004; A61B17/320068; A61B2017/320069; A61B2017/320082; A61B90/00; A61B90/39
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
194 words
A tissue removal assembly, comprising: a.) a tubular tissue removal member having a wall, a distal diameter, a proximal end, a distal end, and a longitudinal axis extending between said proximal end and said distal end; an open, distally located tissue entry opening; a relatively more proximal, tissue exit port; and a tissue removal passageway extending between said tissue entry opening and said tissue exit port; b.) a cutting member having a generally rounded "J" shape, a generally square "J" shape, or an "L" shape, said cutting member being rotatable with respect to said tubular tissue removal member in a diameter greater than the tubular tissue removal member distal diameter, extendible beyond said distally located tissue entry opening, and having a cutting surface, where upon rotation of said cutting member and extension of said cutting member distally beyond said tissue entry opening within a tissue region, said cutting surface cuts a discrete tissue mass having an overall diameter measured generally orthogonal to the tubular tissue removal member axis which is greater than said tubular tissue removal member distal diameter and which discrete tissue mass is in a configuration removable through said tissue entry opening.
Claim 2
Dependent Claim
194 words
A tissue removal assembly, comprising: a.) a tubular tissue removal member having a wall, a distal diameter, a proximal end, a distal end, and a longitudinal axis extending between said proximal end and said distal end; an open, distally located tissue entry opening; a relatively more proximal, tissue exit port; and a tissue removal passageway extending between said tissue entry opening and said tissue exit port; b.) a cutting member having a generally rounded "J" shape, a generally square "J" shape, or an "L" shape, said cutting member being rotatable with respect to said tubular tissue removal member in a diameter greater than the tubular tissue removal member distal diameter, extendible beyond said distally located tissue entry opening, and having a cutting surface, where upon rotation of said cutting member and extension of said cutting member distally beyond said tissue entry opening within a tissue region, said cutting surface cuts a discrete tissue mass having an overall diameter measured generally orthogonal to the tubular tissue removal member axis which is greater than said tubular tissue removal member distal diameter and which discrete tissue mass is in a configuration removable through said tissue entry opening.
Claim 3
Dependent Claim
23 words
The tissue removal assembly of claim 1 wherein said cutting surface is configured to cut a radial, helical path through discrete tissue mass.
Claim 4
Dependent Claim
24 words
The tissue removal assembly of claim 1 wherein said cutting member is manually manipulatable from the proximal end of said tubular tissue removal member.
Claim 5
Dependent Claim
25 words
The tissue removal assembly of claim 1 wherein said cutting member has an axis of rotation and a distal extention along said axis of rotation.
Claim 6
Dependent Claim
16 words
The tissue removal assembly of claim 1 wherein said cutting member is at least partially radio-opaque.
Claim 7
Dependent Claim
16 words
The tissue removal assembly of claim 4 wherein said cutting member is at least partially radio-opaque.
Claim 8
Dependent Claim
18 words
The tissue removal assembly of claim 4 wherein said cutting member distal extension is at least partially radio-opaque.
Claim 9
Dependent Claim
16 words
The tissue removal assembly of claim 1 wherein said cutting member is a wire cutting member.
Claim 10
Dependent Claim
16 words
The tissue removal assembly of claim 1 wherein said cutting member is a ribbon cutting member.
Claim 11
Dependent Claim
34 words
The tissue removal assembly of claim 1 wherein said cutting member comprises a material selected from the group consisting of titanium, nickel, stainless steel, cobalt, tantalum, and nickel and mixture and alloys of thereof.
Claim 12
Dependent Claim
15 words
The tissue removal assembly of claim 1 wherein said cutting member comprises titanium and nickel.
Claim 13
Dependent Claim
24 words
The tissue removal assembly of claim 1 wherein said cutting member is an RF cutter utilizing radio-frequency energy to cut said discrete tissue mass.
Claim 14
Dependent Claim
26 words
The tissue removal assembly of claim 12 further comprising an RF source connected to said cutting member which is suitable for cutting said discrete tissue mass.
Claim 15
Dependent Claim
15 words
The tissue removal assembly of claim 1 wherein said cutting member is a mechanical blade.
Claim 16
Dependent Claim
15 words
The tissue removal assembly of claim 14 wherein said mechanical blade cutting member is vibrated.
Claim 17
Dependent Claim
21 words
The tissue removal assembly of claim 1 wherein said cutting member is an RF cutter having a sharp mechanical cutting surface.
Claim 18
Dependent Claim
26 words
The tissue removal assembly of claim 1 wherein said cutting member is an ultrasound cutter utilizing high frequency audio energy to cut said discrete tissue mass.
Claim 19
Dependent Claim
26 words
The tissue removal assembly of claim 17 further comprising an ultrasound source connected to said cutting member which is suitable for cutting said discrete tissue mass.
Claim 20
Dependent Claim
70 words
The tissue removal assembly of claim 1 wherein said tubular tissue removal member further includes a shaft passageway exterior to said tissue removal passageway and generally parallel to said tubular tissue removal member longitudinal axis and said cutting member includes a shaft extending between said cutting surface and said tubular tissue removal member proximal end and is slideable within and rotatable within said shaft passageway to advance said cutting surface.
Claim 21
Dependent Claim
70 words
The tissue removal assembly of claim 1 wherein said tubular tissue removal member further includes a shaft passageway interior to said tissue removal passageway and generally parallel to said tubular tissue removal member longitudinal axis and said cutting member includes a shaft extending between said cutting surface and said tubular tissue removal member proximal end and is slideable within and rotatable within said shaft passageway to advance said cutting surface.
Claim 22
Dependent Claim
27 words
The tissue removal assembly of claim 1 further comprising a pick locatable within said tissue removal passageway which pick is configured for removing said discrete tissue mass.
Claim 23
Dependent Claim
30 words
The tissue removal assembly of claim 1 further comprising a manipulatable grasping tool locatable within said tissue removal passageway which grasping tool is configured for removing said discrete tissue mass.
Claim 24
Dependent Claim
25 words
The tissue removal assembly of claim 22 wherein said manipulatable grasping tool comprises a pair of opposing jaws suitable for grasping said discrete tissue mass.
Claim 25
Dependent Claim
23 words
The tissue removal assembly of claim 22 wherein said manipulatable grasping tool comprises a grasping braid suitable for grasping said discrete tissue mass.
Claim 26
Dependent Claim
30 words
The tissue removal assembly of claim 1 further comprising a manipulatable suction tool locatable within said tissue removal passageway which suction tool is configured for removing said discrete tissue mass.
Claim 27
Dependent Claim
19 words
The tissue removal assembly of claim 1 further comprising a trocar sized to fit within said tissue removal passageway.
Claim 28
Dependent Claim
32 words
The tissue removal assembly of claim 26 wherein said trocar includes a leading cutting edge and a slot in said leading cutting edge and said cutting surface fits in said trocar slot.
Claim 29
Dependent Claim
18 words
The tissue removal assembly of claim 26 wherein said trocar is extendible distally though said tissue entry opening.
Claim 30
Dependent Claim
23 words
The tissue removal assembly of claim 1 wherein said tissue entry opening is open along the axis of said tubular tissue removal member.
Claim 31
Dependent Claim
25 words
The tissue removal assembly of claim 1 wherein said tissue entry opening is open generally perpendicular to the axis of said tubular tissue removal member.
Claim 32
Dependent Claim
34 words
The tissue removal assembly of claim 1 further comprising a rotatable auger situated within said tubular tissue removal member for moving excised tissue along said tubular tissue removal member to said tissue exit port.
Claim 33
Dependent Claim
301 words
A procedure for removing tissue from a selected internal tissue region, comprising the steps of: introducing a tissue removal assembly to a region adjacent a selected internal tissue region, said tissue removal assembly comprising: a.) a tubular tissue removal member having a wall, a distal diameter, a proximal end, a distal end and a longitudinal axis extending between said proximal end and said distal end; an open, distally located tissue entry opening; a relatively more proximal, tissue exit port; and a tissue removal passageway extending between said tissue entry opening and said tissue exit port, b.) a cutting member having a generally rounded "J" shape, a generally square "J" shape, or an "L" shape, said cutting member being rotatable with respect to said tubular tissue removal member in a diameter greater than the tubular tissue removal member distal diameter, extendible beyond said distally located tissue entry opening, and having a cutting surface, where upon rotation of said cutting member and extension of said cutting member distally beyond said tissue entry opening within said tissue region, said cutting surface cuts a discrete tissue mass having an over all diameter measured generally orthogonal to the tubular tissue removal member axis which is greater than said tubular tissue removal member distal diameter and which discrete tissue mass is in a configuration removable through said tissue entry opening, rotating said cutting member and said cutting surface to form a discrete tissue mass having an overall diameter measured generally orthogonal to the tubular tissue removal member axis which is greater than said tubular tissue removal member distal diameter and which discrete tissue mass is in a configuration removable through said tissue entry opening, and removing said discrete tissue mass through said tissue entry opening, through said tissue removal passageway, and out through said tissue exit port.
Claim 34
Dependent Claim
301 words
A procedure for removing tissue from a selected internal tissue region, comprising the steps of: introducing a tissue removal assembly to a region adjacent a selected internal tissue region, said tissue removal assembly comprising: a.) a tubular tissue removal member having a wall, a distal diameter, a proximal end, a distal end and a longitudinal axis extending between said proximal end and said distal end; an open, distally located tissue entry opening; a relatively more proximal, tissue exit port; and a tissue removal passageway extending between said tissue entry opening and said tissue exit port, b.) a cutting member having a generally rounded "J" shape, a generally square "J" shape, or an "L" shape, said cutting member being rotatable with respect to said tubular tissue removal member in a diameter greater than the tubular tissue removal member distal diameter, extendible beyond said distally located tissue entry opening, and having a cutting surface, where upon rotation of said cutting member and extension of said cutting member distally beyond said tissue entry opening within said tissue region, said cutting surface cuts a discrete tissue mass having an over all diameter measured generally orthogonal to the tubular tissue removal member axis which is greater than said tubular tissue removal member distal diameter and which discrete tissue mass is in a configuration removable through said tissue entry opening, rotating said cutting member and said cutting surface to form a discrete tissue mass having an overall diameter measured generally orthogonal to the tubular tissue removal member axis which is greater than said tubular tissue removal member distal diameter and which discrete tissue mass is in a configuration removable through said tissue entry opening, and removing said discrete tissue mass through said tissue entry opening, through said tissue removal passageway, and out through said tissue exit port.
Claim 35
Dependent Claim
21 words
The procedure of claim 32 wherein the cutting member is rotated to form a helical cut in said discrete tissue mass.
Claim 36
Dependent Claim
23 words
The procedure of claim 32 wherein said cutting member has an axis of rotation and a distal extension along said axis of rotation.
Claim 37
Dependent Claim
14 words
The procedure of claim 32 wherein said cutting member is at least partially radio-opaque.
Claim 38
Dependent Claim
14 words
The procedure of claim 32 wherein said cutting member is a wire cutting member.
Claim 39
Dependent Claim
32 words
The procedure of claim 32 wherein said cutting member comprises a material selected from the group consisting of titanium, nickel, stainless steel, cobalt, tantalum, and nickel and mixture and alloys of thereof.
Claim 40
Dependent Claim
13 words
The procedure of claim 37 wherein said cutting member comprises titanium and nickel.
Claim 41
Dependent Claim
51 words
The procedure of claim 32 wherein said cutting member is an RF cutter utilizing radio-frequency energy to cut said discrete tissue mass and wherein said step of rotating said cutting member and said cutting surface to form a discrete tissue mass includes the imposition of radio-frequency energy to effectuate said cutting.
Claim 42
Dependent Claim
13 words
The procedure of claim 32 wherein said cutting member is a mechanical blade.
Claim 43
Dependent Claim
13 words
The procedure of claim 40 wherein said mechanical blade cutting member is vibrated.
Claim 44
Dependent Claim
22 words
The procedure of claim 32 wherein said cutting member is a is an RF cutter having a sharp with mechanical cutting surface.
Claim 45
Dependent Claim
37 words
The procedure of claim 32 wherein said cutting member is an ultrasound cutter utilizing high frequency audio energy to cut said discrete tissue mass and further including the step of applying ultrasound energy to said cutting member.
Claim 46
Dependent Claim
30 words
The procedure of claim 32 wherein said trocar includes a leading cutting edge and a slot in said leading cutting edge and said cutting surface fits in said trocar slot.
Claim 47
Dependent Claim
49 words
The procedure of claim 32 wherein said tissue removal assembly further comprises a rotatable auger situated within said tubular tissue removal member for moving excised tissue along said tubular tissue removal member to said tissue exit port and wherein said procedure includes rotating said auger to remove excised tissue.
Claim 48
Dependent Claim
24 words
The procedure of claim 45 further comprising the step of reconstituting the excised tissue to the form as found prior to the cutting step.
References Cited (Backward Citations)
US34056A
Cited
US1995725A
Cited
US3174851A
Cited
US3351463A
Cited
US3753700A
Cited
US3989038A
Cited
US4116198A
Cited
US4311143A
Cited
US4362160A
Cited
US4493320A
Cited
US4643187A
Cited
US4657018A
Cited
US4811733A
Cited
US4718419A
Cited
US4699154A
Cited
US4921479A
Cited
US4944308A
Cited
US4953558A
Cited
US5254105A
Cited
US4935025A
Cited
US4905691A
Cited
US5064424A
Cited
USRE34056E
Cited
US5078716A
Cited
US5080660A
Cited
US5209749A
Cited
US5201756A
Cited
US5100423A
Cited
US5353804A
Cited
US5197484A
Cited
US5111828A
Cited
US5171255A
Cited
US5085659A
Cited
US5158545A
Cited
US5183464A
Cited
US5741271A
Cited
US5759187A
Cited
US5217458A
Cited
US5593406A
Cited
US5480397A
Cited
US5496314A
Cited
US5312417A
Cited
US5431676A
Cited
US5417697A
Cited
US5437665A
Cited
US5823971A
Cited
US5505728A
Cited
US5526822A
Cited
US5775333A
Cited
US5454790A
Cited
US5527332A
Cited
US5578030A
Cited
US5743906A
Cited
US5611798A
Cited
US5795308A
Cited
US5569244A
Cited
US5647867A
Cited
US5782775A
Cited
US5707359A
Cited
US5709697A
Cited
US5769086A
Cited
US5733283A
Cited
US5882316A
Cited
US5782840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-10-24 | 2004-04-24 | 2004-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-10-24 | 2008-04-24 | 2008-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-10-24 | 2012-04-24 | 2012-10-24 | $7700.00 | Window Closed / Lapsed |