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US 2004/0167474 A1Published application
Catheter having a low drag septum
OwnerClement Wan Chye Meng, Cheng Kiat Jin +1inventors
InventorsClement Wan Chye Meng, Cheng Kiat Jin, Tom M. Miner
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Abstract
The catheter and introducer needle assembly of this invention includes a catheter adapter at its proximal end having a hollow septum disposed therein. The septum preferably is hollow to minimize drag as the introducer needle is removed therefrom. If desired a gel or lubricious material may be disposed in the cavity.
Claims20
An intravenous catheter assembly comprising:
- a catheter having a proximal end and a distal end;
- a catheter adapter in fluid communication with the catheter and having a proximal end and a distal end connected to the proximal end of the catheter;
- an introducer needle disposed, at least in part, within the catheter, the introducer needle having a proximal end and a distal end with an opening;
- a needle hub having a proximal end and a distal end connected to the proximal end of needle;
- a septum housing mounted at the proximal end of the catheter adapter, wherein the septum housing includes a proximal end;
- and
- an elastomeric septum having a distal portion and a proximal portion, the elastomeric septum being disposed in the septum housing, distal, at least in part, to the proximal end of the septum housing;
- wherein the proximal end of the septum housing is adapted to prevent the attachment of a medical device to the proximal end of the catheter adapter.
5 more elements
A septum assembly comprising:
- an adapter having a proximal end and a distal end;
- a rigid septum housing mounted at the proximal end of the catheter adapter, wherein the septum housing includes a proximal end;
- and
- an elastomeric septum having a distal portion and a proximal portion, wherein a cavity is located in the septum, extending from the distal portion to the proximal portion and wherein the elastomeric septum is disposed in the septum housing;
- wherein the proximal end of the septum housing abuts at least a portion of a proximal face of the septum to prevent the attachment of a medical device to the proximal end of the catheter adapter.
2 more elements
An assembly comprising:
- a needle having a cross section;
- an adapter having a proximal end and a distal end;
- a septum housing having a fixed shape and fixedly attached to the adapter;
- and
- a septum fixedly disposed in the septum housing and including a septum proximal portion and a septum distal portion;
- wherein the needle has a proximal end and a distal end with an opening, wherein the introducer needle defines a notch therein adjacent to the distal end, and wherein a notch distance is defined as the distance between a proximal end of the notch and a distal end of the opening in the distal end of the introducer needle and wherein the septum has a length greater than the notch distance;
- and
- wherein the proximal end of the septum housing is adapted to prevent the attachment of a medical device to the proximal end of the adapter.
5 more elements
Dependencies are inferred from the claim text.