Catheter device
First Claim
1. A device for protecting a needle in medico-technical equipment, both before and after use of such equipment, comprising an elongate tubular sheath (4) having a normally open anterior end (6) and a posterior end (8), said sheath having at least one slot extending in the longitudinal direction of said sheath, a pointed needle (18) arranged in said sheath (4) between a first, retracted end position where said needle is enclosed within said sheath and a second, extended end position where said needle extends outwardly through said normally open anterior end, a catheter (26) initially supported by the needle (18) in said first position, said catheter having a hub, and an attachment ( 16, 16'"'"') affixed to said needle, said attachment having a wing extending outwardly through said at least one slot in said sheath for manually displacing the needle (18) between said first and said second end positions, a sealing means (30, 30'"'"') located intermediate said attachment means and said hub of said catheter and detachably connected to said attachment (16, 16'"'"') and said catheter hub is detachably connected to said sealing means, said needle being movable between said first position to said second position by manipulation of said attachment by a user, whereby said sealing means (30, 30'"'"') during displacement of the needle (18) from said first, retracted end position to said second, extended end position is moved within said sheath in a direction towards the anterior end (6) of the sheath (4) and seats in a position sealing the normally open anterior end of said sheath, and means to fix said sealing means in said sealing position for substantial sealing of the anterior end (6) of the sheath (4), said catheter hub adapted to be manually detached from said sealing means in said sealing position to allow removal of said medico-technical equipment from said catheter.
1 Assignment
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Accused Products
Abstract
A device comprises an elongate, tubular sheath (4) having an anterior and a posterior end (6; 8), a pointed needle (18) arranged in the sheath (4) for displacement between a first and a second end position, a catheter (26) initially supported by the needle (18), and an attachment for displacing the needle (18) between the first and the second end position. The novelty of the invention resides in that the sealing means for sealing the anterior, initially open end (6) of the sheath (4) is detachably connected to the attachment, that the sealing means further is detachably connected to the catheter (26), that the sealing means, during the displacement of the needle (18) from the first to the second end position, is moved towards the anterior end (6) of the sheath (4) to a sealing position, and that the sealing means is fixed in the sealing position for substantial sealing of the anterior end (6) of the sheath (4).
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Citations
16 Claims
- 1. A device for protecting a needle in medico-technical equipment, both before and after use of such equipment, comprising an elongate tubular sheath (4) having a normally open anterior end (6) and a posterior end (8), said sheath having at least one slot extending in the longitudinal direction of said sheath, a pointed needle (18) arranged in said sheath (4) between a first, retracted end position where said needle is enclosed within said sheath and a second, extended end position where said needle extends outwardly through said normally open anterior end, a catheter (26) initially supported by the needle (18) in said first position, said catheter having a hub, and an attachment ( 16, 16'"'"') affixed to said needle, said attachment having a wing extending outwardly through said at least one slot in said sheath for manually displacing the needle (18) between said first and said second end positions, a sealing means (30, 30'"'"') located intermediate said attachment means and said hub of said catheter and detachably connected to said attachment (16, 16'"'"') and said catheter hub is detachably connected to said sealing means, said needle being movable between said first position to said second position by manipulation of said attachment by a user, whereby said sealing means (30, 30'"'"') during displacement of the needle (18) from said first, retracted end position to said second, extended end position is moved within said sheath in a direction towards the anterior end (6) of the sheath (4) and seats in a position sealing the normally open anterior end of said sheath, and means to fix said sealing means in said sealing position for substantial sealing of the anterior end (6) of the sheath (4), said catheter hub adapted to be manually detached from said sealing means in said sealing position to allow removal of said medico-technical equipment from said catheter.
Specification