Male telescope catheter
First Claim
1. A catheter which is operable between a collapsed configuration for storage and transportation and an expanded configuration for draining fluid from a body via a conduit which extends axially in a longitudinal direction from a proximal end to an opposite distal end, the catheter comprising:
- a proximal section insertable into a urinary channel of the body and movable to form a proximal part of the conduit extending axially between the proximal end and a first transition end of the proximal section, anda distal section, a portion of which is insertable into the urinary channel, the distal section movable separately from the proximal section to form a distal part of the conduit extending axially between a second transition end of the distal section and the distal end,the first transition end being dimensioned to enable its positioning inside a receiving portion of the distal part of the conduit to enable axial movement of the sections relative to each other to operate the catheter between the collapsed configuration and the expanded configuration of the catheter;
wherein the proximal and distal sections comprise cooperating coupling structures to support the catheter in the expanded configuration, the cooperating coupling structures comprising a slot formed in an inner surface of the distal section and a key formed on the proximal section, the key configured to be flexible such that the key is movable in a radial direction to engage with the slot;
wherein the proximal section comprises an outer surface with a first surface portion with a first circumference which first surface portion, in the longitudinal direction, is followed by a second surface portion with a second circumference which is larger than the first circumference;
wherein the second surface portion, in the longitudinal direction is followed by a third surface portion forming a slot and having a third circumference being smaller than the second circumference;
wherein the slot is followed by a fourth surface portion with a fourth circumference being larger than the circumference(s) of the third surface portion;
wherein the key forms a fifth surface portion which protrudes from an inner surface of the distal section; and
wherein a gap is formed between the third surface portion and the fifth surface portion in the expanded configuration and the gap contains a hydrophilic fluid.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a catheter, especially an expandable catheter with a transition between the individual sections allowing insertion of the transition into urethra. In particular the present invention relates to a catheter which is operable between a collapsed configuration for storage and transportation and an expanded configuration for draining fluid from a body via a conduit which extends axially in a longitudinal direction from a proximal end to an opposite distal end, the catheter comprising: a proximal section, adapted to be fully inserted into a urinary channel of the body and forming a proximal part of the conduit which part extends axially between the proximal end and a first transition end of the proximal section, and a distal section, adapted to be at least partially inserted into the urinary channel and forming a distal part of the conduit which part extends axially between a second transition end of the distal section and the distal end, an insertable part of the first transition end being dimensioned to enable its positioning inside a receiving portion of the distal part of the conduit to enable axial movement of the sections relative to each other to operate the catheter between the collapsed configuration and the expanded configuration of the catheter, wherein the sections comprise cooperating coupling structures to support the catheter in the expanded configuration.
27 Citations
29 Claims
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1. A catheter which is operable between a collapsed configuration for storage and transportation and an expanded configuration for draining fluid from a body via a conduit which extends axially in a longitudinal direction from a proximal end to an opposite distal end, the catheter comprising:
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a proximal section insertable into a urinary channel of the body and movable to form a proximal part of the conduit extending axially between the proximal end and a first transition end of the proximal section, and a distal section, a portion of which is insertable into the urinary channel, the distal section movable separately from the proximal section to form a distal part of the conduit extending axially between a second transition end of the distal section and the distal end, the first transition end being dimensioned to enable its positioning inside a receiving portion of the distal part of the conduit to enable axial movement of the sections relative to each other to operate the catheter between the collapsed configuration and the expanded configuration of the catheter; wherein the proximal and distal sections comprise cooperating coupling structures to support the catheter in the expanded configuration, the cooperating coupling structures comprising a slot formed in an inner surface of the distal section and a key formed on the proximal section, the key configured to be flexible such that the key is movable in a radial direction to engage with the slot; wherein the proximal section comprises an outer surface with a first surface portion with a first circumference which first surface portion, in the longitudinal direction, is followed by a second surface portion with a second circumference which is larger than the first circumference; wherein the second surface portion, in the longitudinal direction is followed by a third surface portion forming a slot and having a third circumference being smaller than the second circumference; wherein the slot is followed by a fourth surface portion with a fourth circumference being larger than the circumference(s) of the third surface portion; wherein the key forms a fifth surface portion which protrudes from an inner surface of the distal section; and wherein a gap is formed between the third surface portion and the fifth surface portion in the expanded configuration and the gap contains a hydrophilic fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 28, 29)
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21. An expandable catheter comprising a proximal section that is movable and a distal section that is telescopically movable separately from the proximal section, both sections combining to form a conduit;
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the proximal section comprising an insertion end for insertion into an urethra for draining a fluid into the conduit, the conduit extending towards an opposite transition end, the proximal section having an outer circumference which increases towards the transition end; the distal section comprising a transition end insertable into the urethra for receiving the fluid when the catheter is expanded, the conduit extending toward an opposite guiding end, the distal section having an outer circumference which decreases towards a transition end, the transition end of the proximal section being dimensioned to enable its positioning inside the conduit of the distal section to enable movement of the sections relative to each other; wherein the proximal and distal sections comprise cooperating coupling structures to support the catheter in the expanded configuration, the cooperating coupling structures comprising a slot formed in an inner surface of the distal section and a key formed on the proximal section, the key configured to be flexible such that the key is movable in a radial direction to engage with the slot wherein the proximal section comprises an outer surface with a first surface portion with a first circumference which first surface portion, in the longitudinal direction, is followed by a second surface portion with a second circumference which is larger than the first circumference; wherein the second surface portion, in the longitudinal direction is followed by a third surface portion forming a slot and having a third circumference being smaller than the second circumference; wherein the slot is followed by a fourth surface portion with a fourth circumference being larger than the circumference(s) of the third surface portion; wherein the key forms a fifth surface portion which protrudes from an inner surface of the distal section; and wherein a gap is formed between the third surface portion and the fifth surface portion in the expanded configuration and the gap contains a hydrophilic fluid. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification