Catheter head with closeable seal element
First Claim
1. A catheter head for medical and pharmaceutical applications, comprising a base body which can be positioned on organic tissue, and a connecting body which serves as fluid connector for the base body and has a fluid channel for forming the fluid connector, the base body and the connecting body detachably connectable, the base body comprising:
- a) a housing,b) a cannula protruding from the housing and serving for insertion into the tissue,c) a seal element held by the housing and having a connector face on which or via which the fluid channel of the connecting body can be placed in fluidic communication with the cannula, andd) a closure element supported by the housing having a closure surface complementary to the connector face of said seal element and movable relative to the seal element wherein, in a closure position, the closure element is in a proximal position relative to the seal element and seals the connector face of the seal element such that the closure surface covers the seal element connector face and, in an open position, is in a distal position relative to the seal element and opens the fluid channel of the connecting body.
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Accused Products
Abstract
A catheter head for medical and pharmaceutical applications, including a base body which may be positioned on organic tissue and a connecting body, serving as fluid connector for the base body, which has a fluid channel to form the fluid connection. The base body and the connecting body are detachably connected to each other and the base body includes: a) a housing b) a cannula, extending from the housing for introduction into the tissue, c) a seal element, retained by the housing, which has a connector face on which or by means of which the fluid channel of the connecting body may be hydraulically connected to the cannula, and d) a closing element, mounted on the housing which may be displaced relative to the sealing element and seals the sealing face of the sealing element in a closed position and opens the connecting body for the fluid channel in an open position.
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Citations
31 Claims
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1. A catheter head for medical and pharmaceutical applications, comprising a base body which can be positioned on organic tissue, and a connecting body which serves as fluid connector for the base body and has a fluid channel for forming the fluid connector, the base body and the connecting body detachably connectable, the base body comprising:
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a) a housing, b) a cannula protruding from the housing and serving for insertion into the tissue, c) a seal element held by the housing and having a connector face on which or via which the fluid channel of the connecting body can be placed in fluidic communication with the cannula, and d) a closure element supported by the housing having a closure surface complementary to the connector face of said seal element and movable relative to the seal element wherein, in a closure position, the closure element is in a proximal position relative to the seal element and seals the connector face of the seal element such that the closure surface covers the seal element connector face and, in an open position, is in a distal position relative to the seal element and opens the fluid channel of the connecting body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 29)
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20. A catheter head comprising a base body and a connecting body which serves as fluid connector for the base body and has a fluid channel for forming the fluid connector, the base body and the connecting body detachably connectable, the base body comprising:
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a) a housing; b) a cannula protruding from the housing; c) a seal associated with the housing and having a connector face for operably coupling to the fluid channel whereby the fluid channel is placed in fluidic communication with the cannula; and d) a closure supported by the housing having a substantially planar covering surface and movable relative to the seal wherein, in a closure position, the closure is in a proximal position relative to the seal and covers the connector face of the seal element via the substantially planar covering surface and, in an open position, is in a distal position relative to the seal andopens the fluid channel of the connecting body. - View Dependent Claims (21, 22, 23)
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24. A catheter head for medical and pharmaceutical applications for forming fluidic communication between a connecting body and organic tissue comprising:
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a housing; a fluid channel comprising; a cannula protruding from the housing for insertion into the tissue; and a seal element held by the housing and having a connector face on which or via which the connecting body can be placed in fluidic communication with the cannula; and a substantially planar closure element independent from said fluid channel and supported by the housing, said substantially planar closure element movable relative to said seal element and having an open position and a sealed position relative to the seal element, wherein in a sealed position, the substantially planar closure element is in a proximal position relative to the seal element and covers the connector face of the seal element and, in an open position, is in a distal position relative to the seal element and opens the fluid channel of the connecting body. - View Dependent Claims (25, 26, 27, 28)
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30. A catheter head for medical and pharmaceutical applications, comprising a base body which can be positioned on organic tissue, and a connecting body which serves as fluid connector for the base body and has a fluid channel for forming the fluid connector, the base body and the connecting body detachably connectable, the base body comprising:
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a) a housing, b) a cannula protruding from the housing and serving for insertion into the tissue, c) a seal element held by the housing and having a connector face on which or via which the fluid channel of the connecting body can be placed in fluidic communication with the cannula, and d) a closure element supported by the housing, wherein the closure element comprises a raised area on an underside directed toward the connector face of the seal element and, when said closure element covers said seal element in a closure position, a pressing force is created between the raised area and the connector face sufficient to hold the closure element in the closure position.
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31. A catheter head for medical and pharmaceutical applications, comprising a base body which can be positioned on organic tissue, and a connecting body which serves as fluid connector for the base body and has a fluid channel for forming the fluid connector, the base body and the connecting body being able to be connected to one another in a detachable manner, the base body comprising:
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a) a housing; b) a cannula protruding from the housing and serving for insertion into the tissue; c) a seal element for the cannula which is held by the housing and which has a connector face opposite the cannula on which or via which the fluid channel of the connecting body can be placed in fluid communication with the cannula; and d) a closure element which is supported by the housing, is configured as a cover for the seal element and is linearly displaceable parallel to the seal element, the closure element, in a closure position, sealing off the connector face of the seal element and, in an open position, opening the connector face of the seal element for the fluid channel of the connecting body.
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Specification