US7780645B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of delivering embolic particles to an aneurysm
Assignee: Codman and Shurtleff Inc
•
Filing: 2005-10-26
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Granted: 2010-08-24
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Expires: 2025-10-26
Abstract
Abstract A method of delivering embolic particles to an aneurysm includes inserting a delivery catheter into the vasculature of a patient and directing the distal end of the delivery catheter to a pre-selected deployment site. Embolic particles are loaded into the delivery catheter, and hydraulic pressure is applied to move the embolic particles through the delivery catheter. The hydraulic pressure is adjusted to control the velocity of the embolic particles and to reduce jetting.
Inventors
- 👤 Donald K. Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:18
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12109; A61B17/12113; A61B17/12118; A61B17/12131; A61B17/12181; A61B17/12186; A61B17/1219; A61B2017/00535; A61B2017/00539; A61B2017/00831; A61B2017/00898; A61B2017/1205
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
112 words
A method of deploying embolic particles within a patient, comprising: inserting a delivery catheter having a proximal end portion and a distal end portion into the vasculature of a patient; directing the distal end of the delivery catheter to a pre-selected site within the vasculature; loading embolic particles into the delivery catheter; applying hydraulic pressure to the embolic particles to move the embolic particles through the delivery catheter and out of the distal end of the delivery catheter into the preselected site; monitoring a velocity of the embolic particles; monitoring the hydraulic pressure being applied to the embolic particles; and adjusting the hydraulic pressure to control the velocity of the embolic particles.
Claim 2
Independent Claim
112 words
A method of deploying embolic particles within a patient, comprising: inserting a delivery catheter having a proximal end portion and a distal end portion into the vasculature of a patient; directing the distal end of the delivery catheter to a pre-selected site within the vasculature; loading embolic particles into the delivery catheter; applying hydraulic pressure to the embolic particles to move the embolic particles through the delivery catheter and out of the distal end of the delivery catheter into the preselected site; monitoring a velocity of the embolic particles; monitoring the hydraulic pressure being applied to the embolic particles; and adjusting the hydraulic pressure to control the velocity of the embolic particles.
Claim 3
Dependent Claim
24 words
The method according to claim 1 wherein the inserting of the embolic particles comprises compressing expandable embolic particles to fit within the delivery catheter.
Claim 4
Dependent Claim
28 words
The method according to claim 1 wherein applying hydraulic pressure comprises activating a fluid filled syringe connected to the delivery catheter to infuse fluid into the delivery catheter.
Claim 5
Dependent Claim
22 words
The method according to claim 3 wherein the adjusting of hydraulic pressure comprises employing the fluid filled syringe to adjust hydraulic pressure.
Claim 6
Dependent Claim
20 words
The method according to claim 1 wherein the monitoring of the velocity of the embolic particles comprises employing fluoroscopy techniques.
Claim 7
Dependent Claim
17 words
The method according to claim 1 wherein the monitoring of hydraulic pressure comprises using a pressure gauge.
Claim 8
Dependent Claim
25 words
The method according to claim 1 further comprising rapidly releasing hydraulic pressure from the delivery catheter if the hydraulic pressure exceeds a selected threshold pressure.
Claim 9
Dependent Claim
27 words
The method according to claim 1 further comprising rapidly releasing hydraulic pressure from the delivery catheter upon exiting of a last embolic particle from the delivery catheter.
Claim 10
Dependent Claim
26 words
The method according to claim 1 wherein the adjusting of the hydraulic pressure comprises incrementally lowering hydraulic pressure after each embolic particle exits the delivery catheter.
Claim 11
Dependent Claim
32 words
The method according to claim 1 wherein the adjusting of the hydraulic pressure comprises adjusting the hydraulic pressure so that each embolic particle exits the delivery catheter at substantially the same velocity.
Claim 12
Independent Claim
169 words
A method of deploying expandable embolic particles within the vasculature of a patient, comprising: inserting a delivery catheter having a proximal end portion and a distal end portion into the vasculature of a patient; directing the distal end of the catheter to a preselected site within the vasculature; loading a plurality of expandable embolic particles into an introducer having a proximal end portion and a distal end portion; attaching a fluid injector to the proximal end portion of the introducer; attaching the distal end of the introducer to the proximal end portion of the delivery catheter; applying hydraulic pressure to the embolic particles by injecting fluid from the fluid injector into the introducer so that the embolic particles move from the introducer into the delivery catheter and out of the distal end of the delivery catheter into the pre-selected site; monitoring a velocity of the embolic particles; monitoring the hydraulic pressure applied to the embolic particles; and adjusting the hydraulic pressure to control the velocity of the embolic particles.
Claim 13
Independent Claim
169 words
A method of deploying expandable embolic particles within the vasculature of a patient, comprising: inserting a delivery catheter having a proximal end portion and a distal end portion into the vasculature of a patient; directing the distal end of the catheter to a preselected site within the vasculature; loading a plurality of expandable embolic particles into an introducer having a proximal end portion and a distal end portion; attaching a fluid injector to the proximal end portion of the introducer; attaching the distal end of the introducer to the proximal end portion of the delivery catheter; applying hydraulic pressure to the embolic particles by injecting fluid from the fluid injector into the introducer so that the embolic particles move from the introducer into the delivery catheter and out of the distal end of the delivery catheter into the pre-selected site; monitoring a velocity of the embolic particles; monitoring the hydraulic pressure applied to the embolic particles; and adjusting the hydraulic pressure to control the velocity of the embolic particles.
Claim 14
Dependent Claim
16 words
The method according to claim 11 wherein attaching a fluid injector comprises attaching a fluid-filled syringe.
Claim 15
Dependent Claim
22 words
The method according to claim 12 wherein the adjusting of hydraulic pressure comprises employing the fluid filled syringe to adjust hydraulic pressure.
Claim 16
Dependent Claim
20 words
The method according to claim 11 wherein the monitoring of the velocity of the embolic particles comprises employing fluoroscopy techniques.
Claim 17
Dependent Claim
17 words
The method according to claim 11 wherein the monitoring of hydraulic pressure comprises using a pressure gauge.
Claim 18
Dependent Claim
25 words
The method according to claim 11 further comprising rapidly releasing hydraulic pressure from the delivery catheter if the hydraulic pressure exceeds a selected threshold pressure.
Claim 19
Dependent Claim
27 words
The method according to claim 11 further comprising rapidly releasing hydraulic pressure from the delivery catheter upon exiting of a last embolic particle from the delivery catheter.
Claim 20
Dependent Claim
26 words
The method according to claim 11 wherein the adjusting of the hydraulic pressure comprises incrementally lowering hydraulic pressure after each embolic particle exits the delivery catheter.
Claim 21
Dependent Claim
32 words
The method according to claim 11 wherein the adjusting of the hydraulic pressure comprises adjusting the hydraulic pressure so that each embolic particle exits the delivery catheter at substantially the same velocity.
References Cited (Backward Citations)
USRE31272E
Cited
US5947977A
Cited
US7011672B2
Cited
US6024754A
Cited
US6017977A
Cited
US5830178A
Cited
US6689089B1
Cited
US6565551B1
Cited
US6315709B1
Cited
US6645167B1
Cited
US6602261B2
Cited
US20030223956A1
Cited
US6530934B1
Cited
US20080103479A1
Cited
US20050085769A1
Cited
US20030185896A1
Cited
US20040076582A1
Cited
US20040101564A1
Cited
US20040167385A1
Cited
US20070150045A1
Cited
US20040225286A1
Cited
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