EP0604803A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Multi purpose perfusion cannula
Assignee: Individual
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Filing: 1993-12-10
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Granted: —
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Expires: 2013-12-10
Abstract
Abstract A cannula is provided particularly for use in connection with aortic perfusion. In its simplest form, it comprises a perfusion cannula with a main channel which is fluidly connected at one end to an intra-aortic portion of the cannula and, at the other end, is fluidly connected to the aortic perfusion line of a cardiopulmonary bypass. A first side port is adapted for fluid connection to an extra-aortic pump or to an intra-aortic balloon pump. The other end of the first port is in fluid connection with the intra-aortic portion of the cannula. This arrangement permits the insertion of the intra-aortic balloon pump through the first port, into the intra-aortic portion of the cannula, and beyond into the descending aorta. A blood pressure port is fluidly connected to a blood pressure monitoring tube said tube is located within the intra-aortic portion and extends therein to a pressure point upstream of the distal end of the portion. The other end of the tube is adapted for connection to a blood pressure measuring or monitoring device.
Inventors
- 👤 Shlomo Gabbay
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 15:27
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1011; A61M1/00; A61M1/36; A61M1/3621; A61M1/3653; A61M1/3659; A61M60/00; A61M60/10; A61M60/122; A61M60/126; A61M60/135; A61M60/139; A61M60/152; A61M60/20; A61M60/295; A61M60/30; A61M60/31; A61M60/40; A61M60/465; A61M60/489; A61M60/495; A61M60/50; A61M60/508; A61M60/515; A61M60/531; A61M60/562; A61M60/80; A61M60/855; A61M60/861; A61M60/865; A61M2210/00; A61M2210/12; A61M2210/127; A61M2230/00; A61M2230/30; A61M60/802; A61M60/833
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
124 words
A perfusion cannula for insertion into an artery, a main channel fluidly connected to an intra-aortic portion of said cannula, said main channel adapted for fluid connection to an aortic perfusion line of a cardiopulmonary bypass, said portion having a proximal end adjacent said main channel and a distal end remote from said main channel, a first side port adapted for fluid connection to an intra-aortic balloon pump at a remote end and in fluid connection with said portion at a near end, a blood pressure port fluidly connected to a blood pressure monitoring tube, said tube being within said portion and extending to a pressure point upstream of said distal end, said tube being adapted for connection to a blood pressure monitoring device.
Claim 2
Dependent Claim
25 words
The cannula of Claim 1 comprising a locator ring on said cannula surrounding said cannula to indicate proper location of said cannula in said artery.
Claim 3
Dependent Claim
51 words
The cannula of Claim 1 or Claim 2 comprising an inflatable occlusive balloon surrounding at least a part of said portion, said first port fluidly connected to said occlusive balloon and adapted for connection to an extra-aortic pump and to a control device for said intra-aortic pump or said extra-aortic pump.
Claim 4
Dependent Claim
29 words
The cannula of any of claims 1 to 3 wherein there is a girdle surrounding a part of said artery, said cannula extending through said girdle into said artery.
Claim 5
Dependent Claim
15 words
The cannula of Claim 4 wherein said girdle is a substantially rectangular strip of material.
Claim 6
Dependent Claim
38 words
The cannula of Claim 4 or 5 wherein said girdle comprises a first layer, a second layer, and a silicone patch therebetween, thereby to seal an opening in said artery caused by withdrawal of a monitoring element therefrom.
Claim 7
Dependent Claim
11 words
The cannula of Claim 6 wherein said element monitors blood pressure.
Claim 8
Dependent Claim
85 words
The cannula of any of the proceeding claims wherein said artery comprises an ascending aorta, a descending aorta, and an aortic arch therebetween, a non-occlusive balloon surrounding said portion at or adjacent said distal end and in said descending aorta, said occlusive balloon being adjacent said proximal end, said portion carrying perfused blood extending through said non-occlusive balloon to an exit at or adjacent its distal terminus, whereby said blood passes through said exit in a direction substantially parallel to walls of said descending aorta.
Claim 9
Dependent Claim
46 words
The cannula of any of the proceeding claims comprising a plug in said first side port at an end remote from said near end, said plug having a one-way valve therein adapted to prevent flow away from said near end permit flow toward said near end.
Claim 10
Dependent Claim
16 words
The cannula of Claim 9 wherein said valve permits entry of an intra-aortic balloon catheter therethrough.
Claim 11
Dependent Claim
12 words
The cannula of Claim 9 wherein said fluid is an aqueous saline.
Claim 12
Dependent Claim
57 words
A girdle for use with the cannula of any of the Claims 1 to 11 surrounding and reinforcing an artery comprising a substantially rectangular strip of material, said girdle having a pair of relatively narrow elongated fastening ties, one at either end of said strip, to wrap said girdle around said artery and secure it in place.
Claim 13
Dependent Claim
31 words
The girdle of Claim 12 wherein there is a slit adjacent one end of said strip, one of said ties extending through said slit and tied to another of said ties.
Claim 14
Dependent Claim
21 words
The girdle of Claim 12 or Claim 13 comprising a hole through said strip for a passage of a cannula therethrough.
Claim 15
Dependent Claim
86 words
A trocar for use with the cannula of any of claims 1 to 11 comprising a hollow flexible tube within said cannula, a flexible guide wire in said tube, a head at an inner end of said trocar, said head ending in a point adapted for insertion into said artery, said head having at least one hole adapted to allow blood and/or air to flow therethrough toward an outer end of said cannula between said wire and said plug, whereby air is removed from said artery.
References Cited (Backward Citations)
No citation records indexed.
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