Patent US5972012A successfully refreshed from Google Patents.
US5972012A
Expired / Lapsed
US
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Cutting apparatus having articulable tip
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1998-02-19
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Granted: 1999-10-26
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Expires: 2018-02-19
Abstract
Abstract Apparatus and methods for intraoperatively performing surgery to create transmural channels in tissue, for example, as in transmyocardial revascularization, are provided using apparatus having an end region containing a mechanical cutting head and means for articulating the end-region to access hard-to-reach portions of the anatomy. The handpiece is coupled by a disposable cable to a controller that houses a vacuum pump and mechanisms for driving the cutting head. The cutting head is adapted to cooperate with the vacuum pump to evacuate tissue severed during the channel forming process.
Inventors
- 👤 John H. Ream
- 👤 Vahid Saadat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:14
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B17/32002; A61B17/3205; A61B17/3207; A61B17/320758; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/148; A61B17/34; A61B17/3478; A61B18/1492; A61B2017/00017; A61B2017/00022; A61B2017/00026; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2017/00292; A61B2017/003; A61B2017/00367; A61B2017/00398; A61B2017/00681; A61B2017/00685; A61B2017/00694; A61B2017/00703; A61B17/22; A61B2017/22072; A61B2017/22074; A61B2017/22077; A61B17/28; A61B17/29; A61B2017/2926; A61B2017/2927; A61B17/30; A61B2017/306; A61B2017/308; A61B2017/320028; A61B17/320068; A61B2017/320084; A61B17/3417; A61B17/3421; A61B2017/3445; A61B2017/348; A61B2017/3482; A61B2017/3484; A61B2017/3488; A61B2018/00053; A61B2018/00184; A61B2018/00196; A61B2018/00202; A61B2018/00208; A61B2018/00214; A61B2018/00267; A61B2018/00273; A61B2018/00279; A61B2018/00291; A61B2018/00315; A61B2018/00345; A61B2018/00351; A61B2018/00392; A61B2018/00636; A61B2018/00696; A61B2018/00738; A61B2018/00761; A61B2018/00773; A61B2018/00839; A61B2018/0091; A61B2018/00916; A61B18/1206; A61B2018/124; A61B2018/1405; A61B2018/1435; A61B2018/1437; A61B18/18; A61B18/1815; A61B2018/1861; A61B90/00; A61B90/06; A61B2090/064; A61B90/36; A61B90/37; A61B2090/378; A61B2090/3782; A61B2090/3784; A61B2218/00; A61B2218/001; A61B2218/002; A61B2218/007; A61B34/00; A61B34/20
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
123 words
Apparatus for use with a first vacuum source to form a channel in tissue, the apparatus comprising: a handpiece having: a body, a shaft coupled to the body, the shaft having a lumen, a longitudinal axis and an articulation region; a cutting head having a bore coupled to the first vacuum source, a first position wherein the cutting head extends from within the lumen to form a channel in the tissue, tissue severed by the cutting head being aspirated through the bore by the first vacuum source, and a second position wherein the cutting head is retracted within the lumen; and means for articulating the articulation region to dispose the cutting head at an angle relative to the longitudinal axis of the shaft.
Claim 2
Dependent Claim
123 words
Apparatus for use with a first vacuum source to form a channel in tissue, the apparatus comprising: a handpiece having: a body, a shaft coupled to the body, the shaft having a lumen, a longitudinal axis and an articulation region; a cutting head having a bore coupled to the first vacuum source, a first position wherein the cutting head extends from within the lumen to form a channel in the tissue, tissue severed by the cutting head being aspirated through the bore by the first vacuum source, and a second position wherein the cutting head is retracted within the lumen; and means for articulating the articulation region to dispose the cutting head at an angle relative to the longitudinal axis of the shaft.
Claim 3
Dependent Claim
40 words
The apparatus as defined in claim 1 wherein the apparatus further comprises: a controller housing a linear motor; and a cable coupling the linear motor to the cutting head to move the cutting head between the first and second positions.
Claim 4
Dependent Claim
17 words
The apparatus as defined in claim 1 wherein the first vacuum source is housed within the controller.
Claim 5
Dependent Claim
30 words
The apparatus as defined in claim 1 further comprising a rotary motor disposed within the controller and coupled by the cable to the cutting head to rotate the cutting head.
Claim 6
Dependent Claim
26 words
The apparatus as defined in claim 4 wherein the handpiece further comprises a control panel having buttons that cause activation of the linear and rotary motors.
Claim 7
Dependent Claim
39 words
The apparatus as defined in claim 4 wherein the cable comprises a drive cable and the apparatus further comprises a coupling that transmits rotary motion and longitudinal motion from the rotary and linear motors, respectively, to the drive cable.
Claim 8
Dependent Claim
46 words
The apparatus as defined in claim 6 wherein the handpiece further comprises a spool coupled between the drive cable and the cutting head, the spool including struts defining apertures that permit tissue aspirated through the bore of the cutting head to pass to a tissue filter.
Claim 9
Dependent Claim
31 words
The apparatus as defined in claim 1 wherein the cutting head, in the first position, also experiences motion selected from the group consisting of reciprocatory motion, angular motion or vibrational motion.
Claim 10
Dependent Claim
23 words
The apparatus as defined in claim 1 wherein the apparatus further comprises means for stabilizing the cutting head in contact with the tissue.
Claim 11
Dependent Claim
33 words
The apparatus as defined in claim 9 wherein the means for stabilizing comprises a suction cup disposed on the shaft near the cutting head and means for inducing suction through the suction cup.
Claim 12
Dependent Claim
56 words
The apparatus as defined in claim 10 wherein the first vacuum source provides a first level of suction to the cutting head and the means for inducing suction through the suction cup comprises a second vacuum source that provides a second level of suction, the second level of suction lower than the first level of suction.
Claim 13
Dependent Claim
16 words
The apparatus as defined in claim 1 wherein the handpiece is discarded after a single use.
Claim 14
Dependent Claim
52 words
The apparatus as defined in claim 1 wherein the handpiece further comprises a drive tube coupled between the drive cable and the cutting head, the drive tube comprising: a rigid proximal portion; a rigid distal portion; and a flexible drive coupling disposed between the rigid proximal portion and the rigid distal portion.
Claim 15
Dependent Claim
22 words
The apparatus as defined in claim 1 further comprising means for advancing the cutting head at high speed in a distal direction.
Claim 16
Dependent Claim
25 words
The apparatus as defined in claim 1 further comprising means, disposed on the shaft, for viewing the cutting head when the articulation region is articulated.
Claim 17
Dependent Claim
139 words
Apparatus for forming a channel in tissue, the apparatus comprising: a controller housing a linear motor and a first vacuum source; a handpiece comprising: a body, a shaft coupled to the body, the shaft having a lumen, a longitudinal axis, and an articulation region; a cutting head having a bore coupled to the first vacuum source, a first position wherein the cutting head extends from within the lumen to form a channel in the tissue, tissue severed by the cutting head being aspirated through the bore by the first vacuum source, and a second position wherein the cutting head is retracted within the lumen; and means for articulating the articulation region; and a cable coupling the linear motor and vacuum source, the linear motor causing the cutting head to move the cutting head between the first and second positions.
Claim 18
Dependent Claim
139 words
Apparatus for forming a channel in tissue, the apparatus comprising: a controller housing a linear motor and a first vacuum source; a handpiece comprising: a body, a shaft coupled to the body, the shaft having a lumen, a longitudinal axis, and an articulation region; a cutting head having a bore coupled to the first vacuum source, a first position wherein the cutting head extends from within the lumen to form a channel in the tissue, tissue severed by the cutting head being aspirated through the bore by the first vacuum source, and a second position wherein the cutting head is retracted within the lumen; and means for articulating the articulation region; and a cable coupling the linear motor and vacuum source, the linear motor causing the cutting head to move the cutting head between the first and second positions.
Claim 19
Dependent Claim
30 words
The apparatus as defined in claim 16 further comprising a rotary motor housed within the controller and coupled by the cable to the cutting head to rotate the cutting head.
Claim 20
Dependent Claim
39 words
The apparatus as defined in claim 17 wherein the cable comprises a drive cable and the apparatus further comprises a coupling that transmits rotary motion and longitudinal motion from the rotary and linear motors, respectively, to the drive cable.
Claim 21
Dependent Claim
46 words
The apparatus as defined in claim 18 wherein the handpiece further comprises a spool coupled between the drive cable and the cutting head, the spool including struts defining apertures that permit tissue aspirated through the bore of the cutting head to pass to a tissue filter.
Claim 22
Dependent Claim
31 words
The apparatus as defined in claim 16 wherein the cutting head, in the first position, also experiences motion selected from the group consisting of reciprocatory motion, angular motion or vibrational motion.
Claim 23
Dependent Claim
20 words
The apparatus as defined in claim 16 further comprising means for stabilizing the cutting head in contact with the tissue.
Claim 24
Dependent Claim
40 words
The apparatus as defined in claim 21 wherein the means for stabilizing comprises a suction cup disposed on the shaft near the cutting head and a second vacuum source housed in the controller that induces suction through the suction cup.
Claim 25
Dependent Claim
18 words
The apparatus as defined in claim 16 wherein the handpiece and cable are discarded after a single use.
Claim 26
Dependent Claim
52 words
The apparatus as defined in claim 18 wherein the handpiece further comprises a drive tube coupled between the drive cable and the cutting head, the drive tube comprising: a rigid proximal portion; a rigid distal portion; and a flexible drive coupling disposed between the rigid proximal portion and the rigid distal portion.
Claim 27
Dependent Claim
22 words
The apparatus as defined in claim 16 further comprising means for advancing the cutting head at high speed in a distal direction.
Claim 28
Dependent Claim
25 words
The apparatus as defined in claim 16 further comprising means, disposed on the shaft, for viewing the cutting head when the articulation region is articulated.
References Cited (Backward Citations)
US4788975A
Cited
US4788975B1
Cited
US5403334A
Cited
US5125924A
Cited
US5125926A
Cited
US5242460A
Cited
US5389096A
Cited
US5380316A
Cited
US5607421A
Cited
US5358472A
Cited
US5358485A
Cited
US5613972A
Cited
US5601586A
Cited
US5429144A
Cited
US5488958A
Cited
US5383884A
Cited
US5520634A
Cited
US5575772A
Cited
US5336237A
Cited
US5575787A
Cited
US5492119A
Cited
US5601573A
Cited
US5569284A
Cited
US5601588A
Cited
US5562694A
Cited
US5591159A
Cited
US5611803A
Cited
US5575293A
Cited
US5609621A
Cited
WO1997010753A1
Cited
US5569178A
Cited
US5662671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-10-25 | 2003-04-26 | 2003-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-10-25 | 2007-04-26 | 2007-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-10-25 | 2011-04-26 | 2011-10-26 | $7700.00 | Window Closed / Lapsed |