US6007481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument for the penetration of body tissue with cutting and viewing of body structure
Assignee: Individual
•
Filing: 1995-07-10
•
Granted: 1999-12-28
•
Expires: 2015-07-10
Abstract
Abstract An instrument is described for the penetration of body tissue with a hollow shaft, the point of which is formed as a conical, beveled, or tapered window. An optic with a lighting unit is brought to the point through the hollow shaft. The optic ends at an axial distance behind the summit of the point. An advancing element having a cutting edge extends along the point. The instrument can be inserted while viewing the structure to be penetrated. In so doing, the structure adjacent the point can be observed over substantially the entire surface area thereof. Preferably, a second optic is run to the summit of the point, which in addition enables improved observation of the area lying directly in front of the point.
Inventors
- 👤 Siegfried Riek
- 👤 Karl-Heinz Bachmann
- 👤 Thomas Gaiselmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:50
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/34; A61B17/3417; A61B1/00; A61B1/00163; A61B1/00165; A61B1/313; A61B1/3132; A61B2017/3454; A61B2017/3458; A61B90/00; A61B90/30; A61B2090/306; A61B90/36; A61B90/361; A61B2090/3614
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
107 words
An instrument for the penetration of body tissue comprising: a rigid shaft having a distal end, a tissue contacting element at the distal end of said shaft shaped to enlarge an opening in body tissue as the tissue contacting element and said shaft are advanced, said tissue contacting element having a distal end, and at least part of said tissue contacting element being transparent to permit viewing of body tissue therethrough, and an advancing element at said tissue contacting element, said advancing element having a cutting edge to penetrate the body tissue and extending from adjacent the distal end of said tissue contacting element towards said shaft.
Claim 2
Dependent Claim
107 words
An instrument for the penetration of body tissue comprising: a rigid shaft having a distal end, a tissue contacting element at the distal end of said shaft shaped to enlarge an opening in body tissue as the tissue contacting element and said shaft are advanced, said tissue contacting element having a distal end, and at least part of said tissue contacting element being transparent to permit viewing of body tissue therethrough, and an advancing element at said tissue contacting element, said advancing element having a cutting edge to penetrate the body tissue and extending from adjacent the distal end of said tissue contacting element towards said shaft.
Claim 3
Dependent Claim
74 words
The instrument of claim 1, said tissue contacting element being of greater transverse dimension adjacent said distal end of said rigid shaft and of lesser transverse dimension at parts thereof more remote from said distal end of said rigid shaft, said cutting edge extending from outwardly of a part of said tissue contacting element having a greater transverse dimension to outwardly of a part of said tissue contacting element having a lesser transverse dimension.
Claim 4
Dependent Claim
21 words
The instrument of claim 2, wherein said transparent part of said tissue contacting element is positioned at the distal end thereof.
Claim 5
Dependent Claim
11 words
The instrument of claim 2, said tissue contacting element being truncated.
Claim 6
Dependent Claim
33 words
The instrument of claim 2, wherein said tissue contacting element has a surface which is without an opening or openings of sufficient size to permit flow of a substantial amount of fluid therethrough.
Claim 7
Dependent Claim
19 words
The instrument of claim 2, wherein the transparent part of said tissue contacting element extends circumferentially through substantially 360°.
Claim 8
Dependent Claim
19 words
The instrument of claim 2, said advancing element not extending beyond said distal end of said tissue contacting element.
Claim 9
Dependent Claim
22 words
The instrument of claim 2, wherein said cutting element has a proximal end spaced from the distal end of said elongated shaft.
Claim 10
Dependent Claim
15 words
The instrument of claim 2, said cutting edge lying outwardly of said tissue contacting element.
Claim 11
Dependent Claim
19 words
The instrument of claim 2, wherein said tissue contacting element is in the form of a right circular cone.
Claim 12
Dependent Claim
148 words
An instrument for the penetration of body tissue comprising: a rigid elongated shaft having a distal end, a tissue contacting element at the distal end of said shaft shaped to penetrate body tissue to enlarge an opening therein as the tissue contacting element and said shaft are advanced, said tissue contacting element having a distal end, and said tissue contacting element being substantially entirely transparent to permit viewing of body tissue therethrough, an advancing element at said tissue contacting element, said advancing element having a cutting edge lying outwardly of said tissue contacting element and extending from adjacent to the distal end thereof towards said shaft, said tissue contacting element having a proximal end at and adjacent to the distal end of said shaft, said proximal end of said tissue contacting element being of substantially the same lateral size and shape as the distal end of said shaft.
Claim 13
Dependent Claim
148 words
An instrument for the penetration of body tissue comprising: a rigid elongated shaft having a distal end, a tissue contacting element at the distal end of said shaft shaped to penetrate body tissue to enlarge an opening therein as the tissue contacting element and said shaft are advanced, said tissue contacting element having a distal end, and said tissue contacting element being substantially entirely transparent to permit viewing of body tissue therethrough, an advancing element at said tissue contacting element, said advancing element having a cutting edge lying outwardly of said tissue contacting element and extending from adjacent to the distal end thereof towards said shaft, said tissue contacting element having a proximal end at and adjacent to the distal end of said shaft, said proximal end of said tissue contacting element being of substantially the same lateral size and shape as the distal end of said shaft.
Claim 14
Dependent Claim
19 words
The instrument of claim 11, said advancing element not extending beyond said distal end of said tissue contacting element.
Claim 15
Dependent Claim
143 words
An instrument for penetration of body tissue comprising: an elongated shaft having a longitudinal axis and a distal end, a window at the distal end of said shaft, said window having a longitudinal axis and a distal end portion spaced from said distal end of said shaft, at least the distal end portion of said window being transparent, said window having a surface configuration substantially symmetrical about the longitudinal axis thereof, said longitudinal axis of said window being in alignment with the longitudinal axis of said shaft, and at least one cutting element having a cutting edge to penetrate the body tissue and extending from adjacent the distal end portion of said window towards said shaft, whereby light may be transmitted through the transparent portion of said window and said cutting element will effect the advance of said instrument into said body tissue.
Claim 16
Dependent Claim
143 words
An instrument for penetration of body tissue comprising: an elongated shaft having a longitudinal axis and a distal end, a window at the distal end of said shaft, said window having a longitudinal axis and a distal end portion spaced from said distal end of said shaft, at least the distal end portion of said window being transparent, said window having a surface configuration substantially symmetrical about the longitudinal axis thereof, said longitudinal axis of said window being in alignment with the longitudinal axis of said shaft, and at least one cutting element having a cutting edge to penetrate the body tissue and extending from adjacent the distal end portion of said window towards said shaft, whereby light may be transmitted through the transparent portion of said window and said cutting element will effect the advance of said instrument into said body tissue.
Claim 17
Dependent Claim
40 words
The instrument of claim 13, said window having a proximal end adjacent the distal end of said shaft, said proximal end of said window being of substantially the same lateral size and shape as the distal end of said shaft.
Claim 18
Dependent Claim
13 words
The instrument of claim 13, said cutting edge being outwardly of said window.
Claim 19
Dependent Claim
11 words
The instrument of claim 13, wherein said elongated shaft is rigid.
Claim 20
Dependent Claim
12 words
The instrument of claim 13, wherein said window is substantially entirely transparent.
Claim 21
Dependent Claim
38 words
The instrument of claim 13, wherein said window is of generally tapering configuration from its proximal end to its distal end, and converging to at least one real or virtual point at or adjacent the distal end thereof.
Claim 22
Dependent Claim
10 words
The instrument of claim 13, wherein said window is conical.
Claim 23
Dependent Claim
18 words
The instrument of claim 19, wherein said conical window is in the form of a right circular cone.
Claim 24
Dependent Claim
39 words
The instrument of claim 13, said window having a greater lateral extent at the proximal end thereof than at the distal end thereof, and having at least one surface extending from the proximal end to the distal end thereof.
Claim 25
Dependent Claim
14 words
The instrument of claim 13, wherein said surface is a single, generally conical surface.
Claim 26
Dependent Claim
31 words
The instrument of claim 13, wherein said window has a surface which is without an opening or openings of sufficient size to permit flow of a substantial amount of fluid therethrough.
Claim 27
Dependent Claim
23 words
The instrument of claim 13, wherein said cutting element has a proximal end spaced from of the distal end of said elongated shaft.
Claim 28
Dependent Claim
170 words
An instrument for penetration of body tissue comprising: a rigid elongated shaft having a longitudinal axis and a distal end, a transparent window at the distal end of said shaft, said window having a longitudinal axis and a distal end portion spaced from said distal end of said shaft, said transparent window having a surface configuration substantially symmetrical about the longitudinal axis thereof, said longitudinal axis of said transparent window being in alignment with the longitudinal axis of said shaft, at least one cutting element having a cutting edge to penetrate the body tissue and extending from adjacent the distal end of said transparent window towards said shaft, said window having a proximal end at and adjacent to the distal end of said shaft, said proximal end of said window being of substantially the same lateral size and shape as the distal end of said shaft, whereby light may be transmitted through said transparent window and said cutting element will effect the advance of said instrument into said body tissue.
Claim 29
Dependent Claim
170 words
An instrument for penetration of body tissue comprising: a rigid elongated shaft having a longitudinal axis and a distal end, a transparent window at the distal end of said shaft, said window having a longitudinal axis and a distal end portion spaced from said distal end of said shaft, said transparent window having a surface configuration substantially symmetrical about the longitudinal axis thereof, said longitudinal axis of said transparent window being in alignment with the longitudinal axis of said shaft, at least one cutting element having a cutting edge to penetrate the body tissue and extending from adjacent the distal end of said transparent window towards said shaft, said window having a proximal end at and adjacent to the distal end of said shaft, said proximal end of said window being of substantially the same lateral size and shape as the distal end of said shaft, whereby light may be transmitted through said transparent window and said cutting element will effect the advance of said instrument into said body tissue.
References Cited (Backward Citations)
US207932A
Cited
US1147408A
Cited
US2699770A
Cited
US2932294A
Cited
US3224320A
Cited
US3357433A
Cited
FR1370580A
Cited
US3437747A
Cited
US3459189A
Cited
US3556085A
Cited
US3613684A
Cited
US3653338A
Cited
DE2218901A1
Cited
US3870036A
Cited
US3961621A
Cited
DE2538758A1
Cited
US4112932A
Cited
US4269192A
Cited
US4319563A
Cited
US4191191A
Cited
US4222375A
Cited
DE2929233A1
Cited
US4299230A
Cited
US4356826A
Cited
US4248214A
Cited
DE2922239A1
Cited
US4254762A
Cited
US4311138A
Cited
SU942730A1
Cited
US4535773A
Cited
US4498902A
Cited
US4567882A
Cited
US4537593A
Cited
EP0135364A2
Cited
US4601710A
Cited
US4601710B1
Cited
US4895431A
Cited
US4901142A
Cited
EP0312787A1
Cited
US5066288A
Cited
US5057082A
Cited
EP0369937A1
Cited
EP0369936A1
Cited
US4972827A
Cited
DE4020956A1
Cited
US5147376A
Cited
US5104388A
Cited
US5159920A
Cited
DE4133073A1
Cited
US5271380A
Cited
US5431151A
Cited
US5250068A
Cited
US5098388A
Cited
US5163941A
Cited
US5269316A
Cited
US5290276A
Cited
US5256149A
Cited
US5246425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-12-27 | 2003-06-28 | 2003-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-12-27 | 2007-06-28 | 2007-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-12-27 | 2011-06-28 | 2011-12-28 | $7700.00 | Window Closed / Lapsed |