Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
135 words
WHAT WE CLAIM IS :- 1. A bulb catheter which comprises two tubes, one slidable axially inside the other, and a tubular bulb disposed around the inner tube and adapted to be pressurised with a liquid or gaseous medium and whose internal space communicates with the space between the outer tube and the inner tube, the bulb being sealingly attached at one end to the inner tube and sealingly attached at the other end of the outer tube, so as to seal the space between the outer tube and the inner tube against the surrounding medium, the two tubes being pressure-resistant; the tubular bulb exhibiting in its non-inflatcd state a smooth unwrinkled tubular external form for facilitating passage of the catheter along a blood vessel, the tubular nature of the bulb being maintained on inflation.
Claim 2
Dependent Claim
31 words
A bulb catheter according to Claim 1, wherein the bulb can be stretched by relative sliding of the tubes one inside the other, and is reinforced by means of a fabric.
Claim 3
Dependent Claim
15 words
A bulb catheter according to Claim 2, wherein the fabric is composed of synthetic fibres.
Claim 4
Dependent Claim
21 words
A bulb catheter according to Claim 2 or 3, wherein filaments of the reinforcement fabric extend along helices of opposite senses.
Claim 5
Dependent Claim
24 words
A bulb catheter according to any preceding claim, wherein the tubes can be fixed in different relative positions by means of a locking device.
Claim 6
Dependent Claim
27 words
A bulb catheter according to any preceding claim, wherein the front portion thereof is curved so that it can be selec- tively introduced into a lateral artery.
Claim 7
Dependent Claim
17 words
A bulb catheter substantially as herein described with reference to and as shown in the accompanying drawings.
Claim 8
Dependent Claim
33 words
An assembly which comprises a catheter according to any preceding claim, a T-piece communicating with the space between the outer tube and the inner tube, and a pressure gauge connected to the Tpiece.
Claim 9
Dependent Claim
45 words
An assembly which comprises a catheter according to any one of claims 1 to 7, a T-piece communicating with the space between the outer tube and the inner tube, and an automatic valve connected to the T-piece for regulating the pressure of the pressurising fluid.
Claim 10
Dependent Claim
25 words
An assembly which comprises a bulb catheter, substantially as herein described with reference to and as shown in the Fig. 1 of the accompanying drawings.