Patent US62120A successfully refreshed from Google Patents.
US6827701B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid exchange system for controlled and localized irrigation and aspiration
Assignee: Fox Hollow Technologies Inc
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Filing: 2002-07-17
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Granted: 2004-12-07
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Expires: 2022-07-17
Abstract
Abstract The control of fluid introduction into and out of body conduits such as vessels, is of great concern in medicine. As the development of more particular treatments to vessels and organs continues it is apparent that controlled introduction and removal of fluids is necessary. Fluid delivery and removal from such sites, usually referred to as irrigation and aspiration, using fluid exchange devices that control also need to be considerate of potential volume and/or pressure in the vessel or organ are described together with catheter and lumen configurations to achieve the fluid exchange. The devices include several electrically or mechanically controlled embodiments and produce both controlled and localized flow with defined volume exchange ratios for fluid management. The applications in medicine include diagnostic, therapeutic, imaging, and uses for the introduction or removal of concentrations of emboli within body cavities.
Inventors
- 👤 John M. MacMahon
- 👤 Thomas G. Goff
- 👤 Brian K. Courtney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:44
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/64; A61M1/67; A61M1/80; A61M1/81; A61M1/71; A61M1/77; A61M1/774
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
206 words
A mechanical device for creating turbulent fluid exchange within a localized region of the body comprising: a fluid exchange apparatus comprising an irrigation reservoir and irrigation lumen having means for controlled delivery of irrigant fluid from the irrigation reservoir through the irrigation lumen to a target site and an aspiration lumen having means for controlled collection of aspirant fluid, wherein the means for controlled delivery of irrigant fluid and the means for controlled collection of aspirant fluid are mechanically linked to produce simultaneous delivery of irrigant fluid and removal of aspirant fluid, and wherein the fluid exchange apparatus is hand held and is comprised of a trigger actuated to simultaneously exert force on the means for controlled delivery of irrigant fluid and the means for controlled collection of aspiration fluid, and a catheter element comprised of the irrigation or aspiration lumen a both, wherein the irrigation lumen terminates with at least one irrigation port at a distal end of the catheter element and the aspiration lumen terminates with at least one aspiration port, wherein the at least one irrigation port and the at least one aspiration port are oriented to produce turbulent fluid exchange from the simultaneous delivery of irrigant fluid and removal of aspirant fluid.
Claim 2
Dependent Claim
206 words
A mechanical device for creating turbulent fluid exchange within a localized region of the body comprising: a fluid exchange apparatus comprising an irrigation reservoir and irrigation lumen having means for controlled delivery of irrigant fluid from the irrigation reservoir through the irrigation lumen to a target site and an aspiration lumen having means for controlled collection of aspirant fluid, wherein the means for controlled delivery of irrigant fluid and the means for controlled collection of aspirant fluid are mechanically linked to produce simultaneous delivery of irrigant fluid and removal of aspirant fluid, and wherein the fluid exchange apparatus is hand held and is comprised of a trigger actuated to simultaneously exert force on the means for controlled delivery of irrigant fluid and the means for controlled collection of aspiration fluid, and a catheter element comprised of the irrigation or aspiration lumen a both, wherein the irrigation lumen terminates with at least one irrigation port at a distal end of the catheter element and the aspiration lumen terminates with at least one aspiration port, wherein the at least one irrigation port and the at least one aspiration port are oriented to produce turbulent fluid exchange from the simultaneous delivery of irrigant fluid and removal of aspirant fluid.
Claim 3
Dependent Claim
43 words
The mechanical device of claim 1 wherein the means for controlled delivery of irrigant fluid is comprised of a cylinder with a dedicated piston for forcing fluid from the cylinder and is mechanically coupled to the means for controlled collection of aspirant fluid.
Claim 4
Dependent Claim
47 words
The mechanical device of claim 1 wherein the means for controlled collection of aspirant fluid from the target site is comprised of a cylinder with a dedicated piston for drawing fluid into the cylinder and is mechanically coupled to the means for controlled delivery of irrigant fluid.
Claim 5
Dependent Claim
18 words
The mechanical device of claim 2 or 3 wherein the piston cylinder are components of a replaceable syringe.
Claim 6
Dependent Claim
32 words
The mechanical device of claim 3 wherein the trigger is coupled to a handle integrally attached to the cylinder and the dedicated piston of the means for controlled delivery of irrigant fluid.
Claim 7
Dependent Claim
28 words
The mechanical device of claim 5 wherein the trigger and the handle are integrally connected to the cylinder and the dedicated piston for forcing fluid from the cylinder
Claim 8
Dependent Claim
26 words
The mechanical device of claim 1 further comprising an occluding element proximal of the at least one irrigation port and the at least one aspiration port.
Claim 9
Dependent Claim
13 words
The mechanical device of claim 7 wherein the occluding element is a balloon.
Claim 10
Dependent Claim
42 words
The mechanical device of claim 1 wherein the fluid exchange apparatus is further comprised of an irrigation chamber having an inflow line in fluid communication with the irrigation reservoir and wherein the outflow line is in fluid communication with the irrigation lumen.
Claim 11
Dependent Claim
40 words
The mechanical device of claim 1 wherein the fluid exchange apparatus is further comprised of an aspiration chamber having an inflow line in fluid communication with the aspiration lumen and an outflow line in fluid communication with the aspiration reservoir.
Claim 12
Dependent Claim
30 words
The mechanical device of claim 1 wherein the means for controlled collection of aspirant fluid is comprised of at least one one-way valve in fluid communication with the aspiration lumen.
Claim 13
Dependent Claim
36 words
The mechanical devices of claim 1 wherein a fluid volume of the irrigant reservoir and a volume of the aspirant reservoir are predetermined to produce a defined ratio of fluid volume exchange at the target site.
Claim 14
Dependent Claim
13 words
The mechanical device of claim 12 wherein the predetermined ratio is approximately 1:1.
Claim 15
Dependent Claim
16 words
The mechanical device of claim 12 wherein the predetermined ratio is between approximately 1:2 and 2:1.
Claim 16
Dependent Claim
204 words
A mechanical device for creating turbulent fluid exchange within a localized region of the body comprising: a fluid exchange apparatus comprising an irrigation reservoir and irrigation lumen having means for controlled delivery of irrigant fluid from the irrigation reservoir through the irrigation lumen to a target site, comprised of a cylinder with a dedicated piston for forcing fluid from a cylinder and an aspiration lumen having means for controlled collection of aspirant fluid, wherein the means for controlled delivery of irrrigant fluid the means for controlled collection of aspirant fluid are mechanically linked to produces simultaneous delivery of irrigant fluid and removal of aspirant fluid, wherein the fluid exchange apparatus is further comprised of a bigger coupled to a handle integrally attached to the cylinder and the dedicated piston; and a catheter element comprised of the irrigation or aspiration lumen or both, wherein the irrigation lumen terminates with at least one irrigation port at a distal end of the catheter element and the aspiration lumen terminates with at least one aspiration port, wherein the at least one irrigation port and the at least one aspiration port are oriented to produce turbulent fluid exchange from the simultaneous delivery of irrigant fluid and removal aspirant fluid.
Claim 17
Dependent Claim
204 words
A mechanical device for creating turbulent fluid exchange within a localized region of the body comprising: a fluid exchange apparatus comprising an irrigation reservoir and irrigation lumen having means for controlled delivery of irrigant fluid from the irrigation reservoir through the irrigation lumen to a target site, comprised of a cylinder with a dedicated piston for forcing fluid from a cylinder and an aspiration lumen having means for controlled collection of aspirant fluid, wherein the means for controlled delivery of irrrigant fluid the means for controlled collection of aspirant fluid are mechanically linked to produces simultaneous delivery of irrigant fluid and removal of aspirant fluid, wherein the fluid exchange apparatus is further comprised of a bigger coupled to a handle integrally attached to the cylinder and the dedicated piston; and a catheter element comprised of the irrigation or aspiration lumen or both, wherein the irrigation lumen terminates with at least one irrigation port at a distal end of the catheter element and the aspiration lumen terminates with at least one aspiration port, wherein the at least one irrigation port and the at least one aspiration port are oriented to produce turbulent fluid exchange from the simultaneous delivery of irrigant fluid and removal aspirant fluid.
Claim 18
Dependent Claim
47 words
The mechanical device of claim 15 wherein the means for controlled collection of aspirant fluid from the target site is comprised of a cylinder with a dedicated piston for drawing fluid into the cylinder and is mechanically coupled to the means for controlled delivery of irrigant fluid.
Claim 19
Dependent Claim
19 words
The mechanical device of claim 15 wherein the cylinder and the dedicated piston are components of a replaceable syringe.
Claim 20
Dependent Claim
39 words
The mechanical device of claim 15 wherein the device is hand held and the trigger is actuated to simultaneously exert force on the means for controlled delivery of irrigant fluid and the means for controlled collection of aspirant fluid.
Claim 21
Dependent Claim
25 words
The mechanical device of claim 15 further comprising an occluding element proximal of the at least one irrigation and the at least one aspiration port.
Claim 22
Dependent Claim
13 words
The mechanical device of claim 19 wherein the occluding element is a balloon.
Claim 23
Dependent Claim
42 words
The mechanical device of claim 15 wherein the fluid exchange apparatus is further comprised of an irrigation chamber having an inflow line in fluid communication with the irrigation reservoir and wherein the outflow line is in fluid communication with the irrigation lumen.
Claim 24
Dependent Claim
42 words
The mechanical device of claim 15 wherein the fluid exchange apparatus is further comprised of an aspiration chamber having an inflow line in fluid communication with the aspiration lumen and wherein the outflow line is in fluid communication with the aspiration reservoir.
Claim 25
Dependent Claim
31 words
The mechanical device of claim 15 wherein the trigger and the handle are integrally connected to the cylinder and the dedicated piston of the means for controlled delivery of irrigant fluid.
Claim 26
Dependent Claim
30 words
The mechanical device of claim 15 wherein the means for controlled collection of aspirant fluid is comprised of at least one one-way valve in fluid communication with the aspiration lumen.
Claim 27
Dependent Claim
36 words
The mechanical device of claim 15 wherein a fluid volume of the irrigant reservoir and a volume of the aspirant reservoir are predetermined to produce a defined ratio of fluid volume exchange at the target site.
Claim 28
Dependent Claim
13 words
The mechanical device of claim 25 wherein the predetermined ratio is approximately 1:1.
Claim 29
Dependent Claim
16 words
The mechanical device of claim 25 wherein the predetermined ratio is between approximately 1:2 and 2:1.
References Cited (Backward Citations)
US3923065A
Cited
US4457747A
Cited
US4714460A
Cited
US4655746A
Cited
US4902276A
Cited
US4909783A
Cited
US4832028A
Cited
US4794928A
Cited
US4921478A
Cited
US5573504A
Cited
US6258061B1
Cited
US5188592A
Cited
US5318518A
Cited
US5653690A
Cited
US5462529A
Cited
US5827229A
Cited
US5938645A
Cited
US5833650A
Cited
US6022336A
Cited
US6295989B1
Cited
US6135991A
Cited
US6156054A
Cited
US5997562A
Cited
US6007545A
Cited
US6013085A
Cited
US6254563B1
Cited
US5989263A
Cited
WO1999045835A2
Cited
US6206868B1
Cited
US5971990A
Cited
US6231588B1
Cited
US6019772A
Cited
US6235042B1
Cited
US6146370A
Cited
WO2000076390A2
Cited
US6290689B1
Cited
US6488671B1
Cited
US20010039411A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-12-07 | 2008-06-07 | 2008-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-12-07 | 2012-06-07 | 2012-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-12-07 | 2016-06-07 | 2016-12-07 | $7700.00 | Window Closed / Lapsed |