Patent EP0547358A2 successfully refreshed from Google Patents.
EP0547358A2
Expired / Lapsed
EP
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Device for controlling the inflation of a balloon catheter
Assignee: CARDIO-SEARCH Ltd
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Filing: 1992-11-05
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Granted: —
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Expires: 2012-11-05
Abstract
Abstract A device for controlling the inflation of a balloon catheter includes a variable volume chamber and an actuator to expel air from the chamber. Movement of the actuator is inhibited by a releasable latch to prevent unintentional inflation of the catheter. An adjustable abutment limits movement of the actuator after the latch is released to prevent overinflation of the balloon.
Inventors
- 👤 Geoffrey A. Hewitt
- 👤 Andrew K. Rath
- 👤 Keith Mcquarrie
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 16:45
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0463; A61M16/0434; A61M16/044; A61M16/0486; A61M25/00; A61M25/10; A61M25/1018; A61M25/10181; A61M25/10182; A61M25/10183
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
107 words
A device to control the inflation of a balloon catheter comprising; a variable volume chamber having an outlet for connection to a lumen of a balloon catheter, an actuator movable relative to the chamber to vary the volume of the chamber and expel air therefrom to inflate said balloon, a releasable latch operable to inhibit movement of the actuator relative to the chamber; and an abutment to limit movement of the actuator upon release of the latch to thereby limit the volume of air expelled from the chamber to inflate the catheter, said abutment being adjustable relative to the actuator to vary the volume of air expelled.
Claim 2
Independent Claim
107 words
A device to control the inflation of a balloon catheter comprising; a variable volume chamber having an outlet for connection to a lumen of a balloon catheter, an actuator movable relative to the chamber to vary the volume of the chamber and expel air therefrom to inflate said balloon, a releasable latch operable to inhibit movement of the actuator relative to the chamber; and an abutment to limit movement of the actuator upon release of the latch to thereby limit the volume of air expelled from the chamber to inflate the catheter, said abutment being adjustable relative to the actuator to vary the volume of air expelled.
Claim 3
Dependent Claim
22 words
A device according to claim 1 including a passage for connection to a further lumen of the catheter to apply suction thereto.
Claim 4
Dependent Claim
30 words
A device according to claim 2 including a vent connected to the passage to allow air to flow to the passage and prevent suction being generated in said further lumen.
Claim 5
Dependent Claim
36 words
A device according to claim 3 wherein said chamber is formed by a flexible bellows located within a frame and said actuator is movable relative to the frame to engage the bladder and expel air therefrom.
Claim 6
Dependent Claim
24 words
A device according to claim 4 wherein said latch is movably mounted on said frame and engages said actuator to inhibit relative movement therebetween.
Claim 7
Dependent Claim
43 words
A device according to claim 5 wherein said actuator is mounted for pivotal movement relative to the frame and said abutment is movable toward and away from the pivot axis to vary the limit of movement of the actuator relative to the frame.
Claim 8
Dependent Claim
14 words
A device according to claim 6 wherein the vent is formed in the frame.
Claim 9
Dependent Claim
47 words
A device according to claim 4 including a tubular spacer located adjacent to said frame with said catheter passing therethrough, said spacer being adapted to extend to a tube into which said catheter is to be inserted to limit movement of the frame relative to the tube.
Claim 10
Dependent Claim
41 words
A device according to claim 8 wherein said spacer is adjustable in length and has axially spaced indicia thereon correlated to the length of the catheter and tube to indicate the limit of movement of the frame relative to the tube.
Claim 11
Dependent Claim
26 words
A device according to claim 9 wherein said spacer is formed from a soft plastics material that may be readily cut to adjust the length thereof.
Claim 12
Dependent Claim
29 words
A device according to claim 4 wherein said frame is formed as an open loop configured to fit within a hand and said bellows is located within said loop.
Claim 13
Dependent Claim
31 words
A device according to claim 11 wherein said actuator includes a pair of rigid wings disposed on opposite sides of said frame and movable toward one another to engage said bladder.
Claim 14
Dependent Claim
27 words
A device according to claim 12 wherein said latch is mounted on said frame and is engageable with each of said wings to prevent relative movement therebetween.
Claim 15
Dependent Claim
45 words
A device according to claim 13 wherein said wings are pivotally interconnected toward one end of said frame and said abutment is movable on the frame toward and away from said one end to vary the angular disposition at which said wings engage said abutment.
Claim 16
Dependent Claim
42 words
A device according to claim 14 wherein each wing is pivotally mounted to opposite ends of a spacer located within said frame and said bladder includes a nipple projecting outwardly from the bladder and through said spacer for connection to said catheter.
Claim 17
Dependent Claim
16 words
A device according to claim 15 wherein said nipple projects to one side of said frame.
Claim 18
Dependent Claim
17 words
A device according to claim 16 wherein said passageway extends beneath said frame and is secured thereto.
Claim 19
Dependent Claim
20 words
A device according to claim 13 wherein said latch is biased to a position in which it engages said wings.
Claim 20
Independent Claim
70 words
A method of wiping the inner wall of a tube comprising the steps of inserting into the tube in a deflated condition a balloon catheter, inhibiting inflation of the catheter until a predetermined location has been attained, subsequently inflating said catheter to engage said inner wall with a force to permit relative movement between the wall and the catheter and withdrawing said catheter from said tube while inhibiting further inflation.
Claim 21
Independent Claim
70 words
A method of wiping the inner wall of a tube comprising the steps of inserting into the tube in a deflated condition a balloon catheter, inhibiting inflation of the catheter until a predetermined location has been attained, subsequently inflating said catheter to engage said inner wall with a force to permit relative movement between the wall and the catheter and withdrawing said catheter from said tube while inhibiting further inflation.
Claim 22
Dependent Claim
28 words
A method according to claim 19 including the step of selectively applying suction to the interior of said tube in advance of said catheter as it is withdrawn.
Claim 23
Dependent Claim
36 words
A method according to claim 19 including the step of limiting relative movement between said tube and said catheter by a positive stop during insertion to ensure that said catheter does not extend beyond said tube.
Claim 24
Dependent Claim
19 words
A method according to claim 19 including the step of providing radial vanes adjacent the balloon of the catheter.
Claim 25
Dependent Claim
17 words
A method according to claim 19 including the step of providing an absorbent covering for said balloon.
Claim 26
Dependent Claim
26 words
A balloon catheter for insertion into a tube having a plurality of radially extending vanes adjacent the balloon to locate radially the catheter within the tube.
Claim 27
Dependent Claim
26 words
A balloon catheter for insertion into a tube having a plurality of radially extending vanes adjacent the balloon to locate radially the catheter within the tube.
Claim 28
Dependent Claim
10 words
A balloon catheter having an absorbent coating on said balloon.
Claim 29
Dependent Claim
10 words
A balloon catheter having an absorbent coating on said balloon.
References Cited (Backward Citations)
No citation records indexed.
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