Catheter with dissolvable tip
First Claim
1. A catheter to be introduced into an internal organ in a body either percutaneously or through a body orifice where it can contact bodily fluids, said catheter comprising:
- a flexible tubular member having an inner lumen;
a rigid solid tip having an inner face and a distal end, said tip being disposed in said lumen, said tip being formed entirely of a molded polymeric material that is slippery when wet, soluble in said bodily fluids and able to absorb radiographic media injected into said tubular member whereby to render said tip radio-opaque;
a narrow passageway disposed in said tip, said passageway extending from said inner face to the distal end of said tip, said passageway being adapted to receive a guide wire for the insertion of said catheter into an internal organ.
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Accused Products
Abstract
The catheter of the present invention is adapted to be introduced into an internal organ in a body either percutaneously or through a body orifice for drainage of that organ where it can contact bodily fluids. The catheter includes a flexible tubular member that has an inner lumen and a rigid solid tip disposed at the end of the inner lumen. The tip is formed of a material that is slippery when wet, soluble in the bodily fluids and capable of absorbing radiographic fluids that are injected into inner lumen for identification of the location by X-rays. A narrow passageway is disposed in the tip and extends from the inner lumen to the distal end of the tip. The passageway is adapted to receive a guide wire for insertion of the catheter into an internal organ.
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Citations
27 Claims
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1. A catheter to be introduced into an internal organ in a body either percutaneously or through a body orifice where it can contact bodily fluids, said catheter comprising:
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a flexible tubular member having an inner lumen; a rigid solid tip having an inner face and a distal end, said tip being disposed in said lumen, said tip being formed entirely of a molded polymeric material that is slippery when wet, soluble in said bodily fluids and able to absorb radiographic media injected into said tubular member whereby to render said tip radio-opaque; a narrow passageway disposed in said tip, said passageway extending from said inner face to the distal end of said tip, said passageway being adapted to receive a guide wire for the insertion of said catheter into an internal organ. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A catheter to be introduced into an internal organ in a body either percutaneously or through a body orifice where it can contact bodily fluids, said catheter comprising:
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a flexible tubular member having an inner lumen; a rigid solid tip having an inner face and a distal end, said tip being disposed at said lumen, said tip being formed entirely of a molded polymeric material that is slippery when wet, soluble in said bodily fluids and able to absorb radiographic media injected into said tubular member whereby to render said tip radio-opaque, said tip being a unitary body, said tip having an external portion shaped in a generally conical configuration and an internal portion having a generally cylindrical configuration, said internal portion being arranged to be disposed in said lumen, said internal portion extending coaxially from the base of said external portion and being disposed within said tubular member; a narrow passageway disposed in said tip, said passageway extending from said inner face to the distal end of said tip, said passageway adaptable to receive a guide wire for the insertion of said catheter into an internal organ. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification