US20040006358A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intralumenal material removal using a cutting device for differential cutting
Assignee: Boston Scientific Corp
•
Filing: 2003-05-20
•
Granted: —
•
Expires: 2023-05-20
Abstract
Abstract Intralumenal material removal systems are provided using an advanceable and rotatable cutter assembly designed for differential cutting. The intralumenal material removal system includes a cutter assembly positionable in the body cavity of a mammalian subject. One embodiment of the cutter assembly comprises a cutter with blades that are designed and arranged to form an acute blade angle of attack with the matter-to-be-removed. The cutter assembly is axially advanceable by translating the drive shaft and rotatable by rotating the drive shaft. The occlusive material is scraped by the cutter assembly and may be aspirated to remove the material from the body cavity. The cutter assembly may provide aspiration ports positioned between facing surfaces of the blades.
Inventors
- 👤 Edward Wulfman
- 👤 Casey Torrance
- 👤 Brent Nistal
- 👤 Scott Youmans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:04
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320758; A61B17/320725; A61B5/00; A61B5/06; A61B5/061; A61B5/41; A61B5/414; A61B5/415; A61B5/418; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0133; A61M25/0147; A61M39/00; A61M39/02; A61M39/06; A61B17/320016; A61B17/32002; A61B17/34; A61B17/3462; A61B2017/00017; A61B2017/00199; A61B2017/00973; A61B17/22; A61B2017/22038; A61B2017/22049; A61B17/28; A61B17/29; A61B2017/2926; A61B2017/2927; A61B2017/320032; A61B2217/00; A61B2217/002; A61B2217/005; A61B8/00; A61B8/12; A61B8/42; A61B8/4209; A61M2039/062; A61M39/0606
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
74 words
1 . A system to remove matter from a cavity in a body, comprising: a drive shaft that is rotatable; a drive system operably coupled to the drive shaft for rotating the drive shaft; and a cutter assembly coupled to the drive shaft, the cutter assembly having multiple blades to cut the matter by differential cutting, each blade having a leading face positioned to form an acute blade angle of attack with the matter.
Claim 2
Dependent Claim
74 words
1 . A system to remove matter from a cavity in a body, comprising: a drive shaft that is rotatable; a drive system operably coupled to the drive shaft for rotating the drive shaft; and a cutter assembly coupled to the drive shaft, the cutter assembly having multiple blades to cut the matter by differential cutting, each blade having a leading face positioned to form an acute blade angle of attack with the matter.
Claim 3
Dependent Claim
24 words
2 . The system of claim 1 , wherein each blade has a facing surface presented in front of an opposing blade facing surface.
Claim 4
Dependent Claim
39 words
3 . The system of claim 2 , wherein the cutter assembly further comprises at least two ports to remove the matter, each port being defined by the space between at least the facing surfaces of two opposing blades.
Claim 5
Dependent Claim
24 words
4 . The system of claim 1 , wherein the acute blade angle is more than about 30 degrees and less than 90 degrees.
Claim 6
Dependent Claim
27 words
5 . The system of claim 4 , wherein the acute blade angle is greater than or equal to about 45 degrees and less than 90 degrees.
Claim 7
Dependent Claim
19 words
6 . The system of claim 4 , wherein the acute blade angle is less than about 75 degrees.
Claim 8
Dependent Claim
40 words
7 . The system of claim 1 , wherein the cutter assembly comprises a proximal cutter and a distal cutter, at least one of the proximal and distal cutter comprising blades positioned to form an acute blade angle of attack.
Claim 9
Dependent Claim
34 words
8 . The system of claim 1 , wherein the cutter assembly further includes a proximal ring secured to the blades, and wherein the blades protrude beyond the outer diameter of the proximal ring.
Claim 10
Dependent Claim
53 words
9 . The system of claim 1 , wherein the cutter assembly includes a proximal cutter and distal cutter, each cutter having multiple blades to cut the matter by differential cutting and the blades of each cutter having a leading face positioned to form an acute blade angle of attack with the matter.
Claim 11
Dependent Claim
97 words
10 . An assembly to remove matter from a cavity in a body, comprising: multiple blades capable of removing the matter using differential cutting techniques, each blade having a facing surface presented in front of an opposing blade facing surface and each blade positioned to form an acute blade angle of attack; at least two ports to remove the matter, each port being defined by a space formed between at least the facing surfaces of two opposing blades; a conduit in communication with the ports to direct the removed matter away from the site of the matter.
Claim 12
Dependent Claim
97 words
10 . An assembly to remove matter from a cavity in a body, comprising: multiple blades capable of removing the matter using differential cutting techniques, each blade having a facing surface presented in front of an opposing blade facing surface and each blade positioned to form an acute blade angle of attack; at least two ports to remove the matter, each port being defined by a space formed between at least the facing surfaces of two opposing blades; a conduit in communication with the ports to direct the removed matter away from the site of the matter.
Claim 13
Dependent Claim
22 words
11 . The assembly of claim 10 , wherein the blade angle is between about 30 degrees and less than 90 degrees.
Claim 14
Dependent Claim
27 words
12 . The assembly of claim 10 , wherein the acute blade angle is greater than or equal to about 45 degrees and less than 90 degrees.
Claim 15
Dependent Claim
22 words
13 . The assembly of claim 10 , wherein the acute blade angle is less than or equal to about 75 degrees.
Claim 16
Dependent Claim
22 words
12 . The assembly of claim 9 , wherein the blades have a cross-sectional dimension of between about 0.1 to 0.5 mm.
Claim 17
Dependent Claim
71 words
13 . The assembly of claim 9 , further including a distal ring in contact with the blades at the proximal end of the blades and a proximal ring having a proximal ring face in contact with the blades at the proximal end of the blades, the proximal ring being larger than the distal ring, and the ports being defined by the proximal ring face and the opposing blade's facing surfaces.
Claim 18
Dependent Claim
25 words
14 . The assembly of claim 13 , wherein the proximal ring includes an ablation surface having a plurality of micro-flutes to cut the matter.
Claim 19
Dependent Claim
30 words
15 . The assembly of claim 8 , further including a proximal ring secured to the blades, and wherein the blades protrude beyond the outer diameter of the proximal ring.
Claim 20
Dependent Claim
84 words
16 . A method of removing matter from a cavity in a body, comprising: rotating a cutter assembly having circumferential positioned multiple blades, each of the blades having a leading face; as the cutter assembly rotates, sequentially contacting each of the blades with a surface of the matter at a blade contact point, wherein the leading face of the blade forms an acute blade angle of attack; and moving the cutter assembly in the direction of the acute blade angle to scrape the matter.
Claim 21
Dependent Claim
84 words
16 . A method of removing matter from a cavity in a body, comprising: rotating a cutter assembly having circumferential positioned multiple blades, each of the blades having a leading face; as the cutter assembly rotates, sequentially contacting each of the blades with a surface of the matter at a blade contact point, wherein the leading face of the blade forms an acute blade angle of attack; and moving the cutter assembly in the direction of the acute blade angle to scrape the matter.
Claim 22
Dependent Claim
41 words
17 . The method of claim 16 , wherein moving of the cutter assembly along the matter includes moving the cutter assembly along a support surface that contacts the matter and the support surface deforms away from the blade contact point.
Claim 23
Dependent Claim
32 words
18 . The method of claim 16 , wherein the cutter assembly includes at least two ports between the blades and the method further includes aspirating the scraped matter through the ports.
References Cited (Backward Citations)
US3854916A
Cited
US4445509A
Cited
US4679557A
Cited
US4790813A
Cited
US4700705A
Cited
US5282813A
Cited
US5211651A
Cited
US5026384A
Cited
US5171244A
Cited
US5228459A
Cited
US5304181A
Cited
US5122134A
Cited
US5694951A
Cited
US5234451A
Cited
US5404699A
Cited
US5759185A
Cited
US5609602A
Cited
US5681336A
Cited
US5913867A
Cited
US6482217B1
Cited
US6332886B1
Cited
US6126667A
Cited
US6565588B1
Cited
US6818001B2
Cited
US6503261B1
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.