Catheter head for subcutaneous administration of an active substance
First Claim
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1. A catheter head comprising:
- a cannula housing having a cavity extending therethrough defining an internal surface and a first passage in communication with the cavity, the cannula housing further including a second passage for receiving a piercing needle;
a cannula extending from the cavity, the cannula having a flange extending radially therefrom;
a retaining body secured within the cavity and in cooperation with the internal surface to locate the flange within the cavity;
a needle holder comprising a guide sleeve axially surrounding a connecting needle; and
a guide extending from the cannula housing and cooperating with the guide sleeve to position the connecting needle into the passage;
wherein the piercing needle may be inserted through the passage in the cannula housing when the needle holder is secured to the cannula housing.
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Abstract
The present invention provides a catheter head including a cannula housing, a needle holder connectable to the cannula housing and a guide sleeve associated with the needle holder for positioning and guiding a connecting needle, and for being narrowly slide-guided over a portion of said cannula housing.
281 Citations
14 Claims
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1. A catheter head comprising:
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a cannula housing having a cavity extending therethrough defining an internal surface and a first passage in communication with the cavity, the cannula housing further including a second passage for receiving a piercing needle;
a cannula extending from the cavity, the cannula having a flange extending radially therefrom;
a retaining body secured within the cavity and in cooperation with the internal surface to locate the flange within the cavity;
a needle holder comprising a guide sleeve axially surrounding a connecting needle; and
a guide extending from the cannula housing and cooperating with the guide sleeve to position the connecting needle into the passage;
wherein the piercing needle may be inserted through the passage in the cannula housing when the needle holder is secured to the cannula housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification