Patent US3999126A successfully refreshed from Google Patents.
US5904648A
Expired / Lapsed
US
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Guided endobronchial blocker catheter
Assignee: Cook Medical Technologies LLC
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Filing: 1997-06-18
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Granted: 1999-05-18
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Expires: 2017-06-18
Abstract
Abstract A balloon-tipped, wire-guided double lumen, endobronchial blocker catheter (6) is provided for insertion into the tracheal bronchial tree using a fiberoptic bronchoscope (2). The catheter incorporates a removable wire guide (14), which runs the entire length of the catheter exiting the tip as a small unencased wire loop (12). The small unencased wire loop is positioned around the circumference of a fiberoptic bronchoscope and when advanced along the fiberoptic bronchoscope thereby allows the catheter to navigate the airway using the fiberoptic bronchoscope as a guide or stint allowing the catheter to reach portions of the lung where access is difficult due to sharp bends in the tracheal bronchial tree. A balloon (8) thereof is inflated to provide obstruction of a portion of the lung from ventilation. The long wire guide loop is removable allowing communication of the blocked segment with the proximal end of the catheter.
Inventors
- 👤 George A. Arndt
- 👤 Frank J. Fischer, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:59
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/267; A61B1/2676; A61B1/005; A61B1/0051; A61B1/0055; A61B1/0056; A61M; A61M16/00; A61M16/04; A61M16/0402; A61M16/0404; A61M16/0434; A61M16/0454; A61M16/0459; A61M16/0486; A61M16/0488; A61M25/00; A61M25/10; A61M25/1002
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
112 words
A guided endobronchial blocker catheter (6) comprising an elongated member (7) with first and second lumens (15, 16) therein and with an inflatable blocker balloon (8) disposed about a distal portion (35) of the elongated member, one (16) of the lumens extending to an interior (7) of the balloon in order to accomplish inflation, and a wire (14) including a loop (12) which extends from a distal end of an other (15) of the lumens, whereby a fiberoptic endoscope (2) can be positioned through the loop to a desired site for the blocker balloon, and the catheter can then be guided by the endoscope to the desired inflation site via the loop.
Claim 2
Dependent Claim
112 words
A guided endobronchial blocker catheter (6) comprising an elongated member (7) with first and second lumens (15, 16) therein and with an inflatable blocker balloon (8) disposed about a distal portion (35) of the elongated member, one (16) of the lumens extending to an interior (7) of the balloon in order to accomplish inflation, and a wire (14) including a loop (12) which extends from a distal end of an other (15) of the lumens, whereby a fiberoptic endoscope (2) can be positioned through the loop to a desired site for the blocker balloon, and the catheter can then be guided by the endoscope to the desired inflation site via the loop.
Claim 3
Dependent Claim
33 words
The catheter according to claim 1, wherein the blocker balloon is an elliptical shaped balloon and wherein the endoscope is a fiberoptic bronchoscope incorporating a tip control mechanism to permit visualization and navigation.
Claim 4
Dependent Claim
40 words
The catheter according to claim 1, wherein the loop extends from a distal end (36) of the elongated member, and at least one proximal end (37) of the loop is fixed relative to a proximal end (38) of the catheter.
Claim 5
Dependent Claim
34 words
The catheter according to claim 3, wherein the at least one proximal end is rotatable relative to the elongated member to permit rotation of the loop in order to provide alignment with the endoscope.
Claim 6
Dependent Claim
38 words
The catheter according to claim 3, wherein an other end (33) of the loop extends past the proximal end of the catheter and can be pulled to decrease a size of the loop and pushed to increase it.
Claim 7
Dependent Claim
35 words
The catheter according to claim 5, wherein a clamp (39; 23-25; 27, 29, 30) is provided at the proximal end of the catheter for clamping the other end of the loop in a fixed position.
Claim 8
Dependent Claim
42 words
The catheter according to claim 3, wherein the proximal end of the catheter is provided with a threaded port (20) and both proximal ends (37) of the loop are fixed to a threaded end cap (21) adjustably engageable on the threaded port.
Claim 9
Dependent Claim
40 words
The catheter according to claim 5, wherein the other end (33) of the loop passes through a hole (31) in the end cap, and is engaged by a cam support fixture (23) disposed about the proximal end of the catheter.
Claim 10
Dependent Claim
32 words
The catheter according to claim 5, wherein the other end (33) of the loop passes through a hole (31) in the end cap, and is engaged and fixed by a screw (39).
Claim 11
Dependent Claim
66 words
A guided endobronchial blocker catheter (6) comprising an elongated member (13) with a blocker balloon (8) disposed about a distal end (36) of the elongated member and a lumen (16) in the elongated member for inflating the balloon, wherein the distal end of the elongated member is provided with guidance means (12, 14) for engagement with an endoscope for guiding the catheter in an anatomical passage.
Claim 12
Dependent Claim
66 words
A guided endobronchial blocker catheter (6) comprising an elongated member (13) with a blocker balloon (8) disposed about a distal end (36) of the elongated member and a lumen (16) in the elongated member for inflating the balloon, wherein the distal end of the elongated member is provided with guidance means (12, 14) for engagement with an endoscope for guiding the catheter in an anatomical passage.
Claim 13
Dependent Claim
24 words
The catheter according to claim 10, wherein said guidance means includes a loop (12) extending from a distal end (36) of the elongated member.
Claim 14
Dependent Claim
27 words
The catheter according to claim 11, wherein said elongated member includes an other lumen (15) extending therein for receiving a wire (14) of said guidance means therein.
Claim 15
Dependent Claim
33 words
The catheter according to claim 1, wherein the blocker balloon is an elliptical shaped balloon and wherein the endoscope is a fiberoptic bronchoscope incorporating a tip control mechanism to permit visualization and navigation.
Claim 16
Dependent Claim
40 words
The catheter according to claim 1, wherein the loop extends from a distal end (36) of the elongated member, and at least one proximal end (37) of the loop is fixed relative to a proximal end (38) of the catheter.
Claim 17
Dependent Claim
34 words
The catheter according to claim 14, wherein the at least one proximal end is rotatable relative to the elongated member to permit rotation of the loop in order to provide alignment with the endoscope.
Claim 18
Dependent Claim
38 words
The catheter according to claim 14, wherein an other end (33) of the loop extends past the proximal end of the catheter and can be pulled to decrease a size of the loop and pushed to increase it.
Claim 19
Dependent Claim
35 words
The catheter according to claim 16, wherein a clamp (39; 23-25; 27, 29, 30) is provided at the proximal end of the catheter for clamping the other end of the loop in a fixed position.
Claim 20
Dependent Claim
42 words
The catheter according to claim 14, wherein the proximal end of the catheter is provided with a threaded port (20) and both proximal ends (37) of the loop are fixed to a threaded end cap (21) adjustably engageable on the threaded port.
Claim 21
Dependent Claim
40 words
The catheter according to claim 16, wherein the other end (33) of the loop passes through a hole (31) in the end cap, and is engaged by a cam support fixture (23) disposed about the proximal end of the catheter.
Claim 22
Independent Claim
110 words
A method of catheterizing tubular convoluted anatomical passageways using a flexible fiberoptic endoscope (2) and a flexible loop tipped catheter (6), comprising the steps of: inserting the flexible fiberoptic endoscope through a distal loop (12) of said catheter; inserting the flexible fiberoptic endoscope under direct continuous visualization into said anatomic passageway; using said fiberoptics of said scope to locate and identify the position to catheterize; advancing the catheter along the longitudinal axis of the fiberoptic endoscope using the circumferentially placed loop; and positioning visually the catheter by advancing the loop off the distal end of said fiberoptic bronchoscope and retracting or advancing said catheter into optimal positioning under direct vision.
Claim 23
Independent Claim
110 words
A method of catheterizing tubular convoluted anatomical passageways using a flexible fiberoptic endoscope (2) and a flexible loop tipped catheter (6), comprising the steps of: inserting the flexible fiberoptic endoscope through a distal loop (12) of said catheter; inserting the flexible fiberoptic endoscope under direct continuous visualization into said anatomic passageway; using said fiberoptics of said scope to locate and identify the position to catheterize; advancing the catheter along the longitudinal axis of the fiberoptic endoscope using the circumferentially placed loop; and positioning visually the catheter by advancing the loop off the distal end of said fiberoptic bronchoscope and retracting or advancing said catheter into optimal positioning under direct vision.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-05-17 | 2002-11-16 | 2003-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-05-17 | 2006-11-16 | 2007-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-05-17 | 2010-11-16 | 2011-05-18 | $7700.00 | Window Closed / Lapsed |