Patent US2154449A successfully refreshed from Google Patents.
EP0249338A2
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EP
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Retroperfusion catheter
Assignee: CR Bard Inc
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Filing: 1987-05-12
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Granted: —
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Expires: 2007-05-12
Abstract
Abstract A retroperfusion catheter includes a catheter body (10) and a retroperfusion balloon (16) at the distal end (14) of the body (10). The catheter also includes means (68) to monitor the pressure at a location distally of the balloon as well as to infuse liquids and medicants downstream of the balloon rapidly and independently of the retroperfusion procedure. The catheter body (10) also has electrode means (64, 66) proximally of the balloon to sense ECG activity directly within the blood vessel as well as to provide a means by which emergency pacing may be stimulated. The catheter construction includes an inner core (46) formed from a soft flexible tube which is surrounded by an overbraid (48) which lends rigidity and torqability for the catheter, the overbraid being surrounded, in turn, by an outer jacket (50). The distal region (24) of the catheter is bent to define a curve which facilitates steering of the catheter as it is advanced through the patient's vascular system.
Inventors
- 👤 Kenneth Alan Spector
- 👤 Stephen Jack Herman
- 👤 Joseph Anthony Levendusky
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-22 23:32
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/68; A61B5/6846; A61B5/6847; A61B5/6852; A61B5/6853; A61B5/24; A61B5/25; A61B5/279; A61B5/28; A61B5/283; A61M; A61M1/00; A61M1/36; A61M1/3613; A61M25/00; A61M25/0043; A61M25/005; A61M25/10; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056; A61M25/1002; A61M2025/1004; A61M2025/1043; A61M2025/1052; A61M2025/1095
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
99 words
A retroperfusion catheter comprising: an elongated catheter body having a proximal end and a distal end, the body having a central lumen extending from its proximal end to its distal end, the lumen terminating at its distal end at a distal outlet port; a ballon mounted to the distal end of the body, the balloon being in communication with the central lumen whereby the balloon may be inflated and deflated in response to changes in pressure within the central lumen; and means for monitoring the pressure at a location distally of the balloon independently of operation of the balloon.
Claim 2
Dependent Claim
99 words
A retroperfusion catheter comprising: an elongated catheter body having a proximal end and a distal end, the body having a central lumen extending from its proximal end to its distal end, the lumen terminating at its distal end at a distal outlet port; a ballon mounted to the distal end of the body, the balloon being in communication with the central lumen whereby the balloon may be inflated and deflated in response to changes in pressure within the central lumen; and means for monitoring the pressure at a location distally of the balloon independently of operation of the balloon.
Claim 3
Dependent Claim
49 words
A retroperfusion catheter as defined in claim 1 wherein said means for monitoring pressure comprises: a secondary lumen formed through and along the catheter body, the secondary lumen having an outlet port distally of the balloon, the secondary lumen having an inlet at the proximal region of the catheter.
Claim 4
Dependent Claim
39 words
A retroperfusion catheter as defined in claim 2 further comprising: the catheter body being formed from an inner elongated tubular core having the main lumen formed therethrough; and the second lumen being formed through the wall of the core.
Claim 5
Dependent Claim
27 words
A retroperfusion catheter as defined in claim 3 further comprising: a wire overbraid formed about the inner core; and an outer jacket formed about the wire overbraid.
Claim 6
Dependent Claim
40 words
A catheter as defined in claim 4 further comprising: a furcation formed on the catheter, the furcation having a side leg in communication with the secondary lumen; and a proximal fitting attached to the proximal end of the catheter body.
Claim 7
Dependent Claim
44 words
A catheter as defined in claim 4 further comprising: the wire overbraid and outer jacket terminating short of the distal end of the tubular core thereby to define a distally protruding segment of the tubular core; said balloon being mounted on the distal segment.
Claim 8
Dependent Claim
50 words
A retroperfusion catheter as defined in claim 6 further comprising: said inner core being formed from a relatively soft, flexible material whereby the distal segment of the catheter is relatively soft and flexible thereby to present a relatively atraumatic tip as the catheter is advanced in a patient's vascular system.
Claim 9
Dependent Claim
18 words
A retroperfusion catheter as defined in claim 6 further comprising: the distal region of the catheter being curved.
Claim 10
Dependent Claim
30 words
A retroperfusion catheter as defined in claim 1 further comprising: means carried by the catheter body for monitoring electrical activity of the blood vessel in which the balloon is placed.
Claim 11
Dependent Claim
69 words
A retroperfusion catheter as defined in claim 9 wherein the electrical means comprises: a pair of spaced electrodes on the catheter body proximally of the balloon; and electrical conductor means extending through the catheter body and being connected to the electrodes at their distal ends, the proximal ends of the conductor being connected to leads extending out of the catheter body at the proximal region of the catheter body.
Claim 12
Dependent Claim
35 words
A catheter as defined in claim 10 wherein the electrodes are located so that at least one of the electrodes may be located within the coronary sinus when the balloon is in the coronary sinus.
Claim 13
Dependent Claim
55 words
A retroperfusion catheter as defined in claim 10 further comprising: a catheter body being formed from an inner elongated tubular core having the main lumen formed therethrough: the secondary lumen being formed through the wall of the core; a wire overbraid formed about the inner core; and an outer jacket formed about the wire overbraid.
Claim 14
Dependent Claim
25 words
A retroperfusion catheter as defined in claim 12 further comprising: said electrically conductor means being formed integrally with and defining strands of the wire overbraid.
Claim 15
Dependent Claim
21 words
A retroperfusion catheter as defined in claim 12 further comprising: said electrically conductor means being wrapped helically about the wire overbraid.
Claim 16
Dependent Claim
32 words
A retroperfusion catheter as defined in claim 12 further comprising: means defining longitudinally extending grooves in the outer surface of the inner core, said electrical conductor means being disposed within the grooves.
Claim 17
Dependent Claim
62 words
A retroperfusion catheter comprising: an elongated catheter body having a lumen extending therethrough and a retroperfusion balloon at its distal end, the lumen being in communication with the interior of the balloon, the lumen terminating in a distal outlet tip; and electrode means carried by the catheter body for monitoring electrical activity of the blood vessel in which the balloon is placed.
Claim 18
Dependent Claim
62 words
A retroperfusion catheter comprising: an elongated catheter body having a lumen extending therethrough and a retroperfusion balloon at its distal end, the lumen being in communication with the interior of the balloon, the lumen terminating in a distal outlet tip; and electrode means carried by the catheter body for monitoring electrical activity of the blood vessel in which the balloon is placed.
Claim 19
Independent Claim
68 words
A method for performing retroperfusion comprising: placing a retroperfusion catheter in a selected location of a patient's venous system and performing a retroperfusion procedure; selectively performing at least one of the steps of monitoring the pressure in the blood vessel sensing electrical activity of the blood vessel, applying a pacing pulse to the blood vessel and infusion of liquids into the blood vessel independently of the retroperfusion procedure.
Claim 20
Independent Claim
68 words
A method for performing retroperfusion comprising: placing a retroperfusion catheter in a selected location of a patient's venous system and performing a retroperfusion procedure; selectively performing at least one of the steps of monitoring the pressure in the blood vessel sensing electrical activity of the blood vessel, applying a pacing pulse to the blood vessel and infusion of liquids into the blood vessel independently of the retroperfusion procedure.
Claim 21
Dependent Claim
33 words
A method for performing retroperfusion as defined in claim 17 further comprising: performing at least said steps of monitoring the pressure in the blood vessel and sensing electrical activity of the blood vessel.
References Cited (Backward Citations)
No citation records indexed.
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