Device for inserting an insertion member, or a soft member, into body tissue
First Claim
1. A device for inserting at least one insertion member having a puncturing tip into tissue of a patient and for affixing the at least one insertion member to the patient'"'"'s skin, the device comprising:
- a housing having at least one contact face for affixing the device onto the patient'"'"'s skin;
an insertion arrangement movably arranged within the housing comprising the at least one insertion member to be inserted into the tissue and a holder element fixedly connected with at least a part of the at least one insertion member which is intended to remain for a long period inside the tissue; and
a drive arranged within the housing for effecting an insertion movement of the insertion arrangement from a first position, in which the puncturing tip of the at least one insertion member is pulled back relative to the contact face, into a second position, in which the puncturing tip of the at least one insertion member protrudes beyond the contact face, so that the at least one insertion member is inserted into the tissue when the device is placed with its contact face on the patient during the insertion movement of the insertion arrangement, the insertion movement being a linear movement along an axis perpendicular to a plane formed by the at least one contact face,wherein the contact face is formed by a base plate affixed so that, after the insertion movement has been performed, the base plate detaches from the housing and wherein the holder element of the insertion arrangement is coupled to the base plate when the insertion arrangement by the insertion movement is brought into the second position,wherein in an initial position, the insertion arrangement is oriented substantially parallel to said plane formed by the at least one contact face and before the insertion movement can be performed is pivoted from the initial position into a first position, in which the insertion arrangement is oriented substantially perpendicular to said plane formed by the at least one contact face, by tilting a drive unit housing, the tilting being effected by a pivot formed at a drive unit housing travelling in a guide slot of a first housing element;
wherein the at least one insertion member of the insertion arrangement comprises at least one soft member for insertion into the tissue and at least one guiding member for temporarily stiffening the at least one soft member during insertion into the tissue, wherein the guiding member forms the puncturing tip for puncturing the skin when inserting the at least one insertion member into the tissue, wherein the holder element is fixedly connected with the at least one soft member and wherein, after the insertion movement of the insertion arrangement the at least one soft member is coupled to the base plate by the holder element, the at least one guiding member is coupled to the housing so that, when the housing is removed from the base plate, the at least one guiding member is retained in the housing and is removed with the housing; and
wherein the drive further effects, after the insertion movement of the insertion arrangement, a retracting movement of the at least one guiding member from the second position into a third position, in which the puncturing tip of the at least one guiding member is pulled back relative to the contact face, so that, when the at least one soft member is held in the second position by the holder element coupled to the base plate, the at least one guiding member is separated from the at least one soft member.
3 Assignments
0 Petitions
Accused Products
Abstract
A soft cannula is inserted into tissue and affixed to skin. A cannula arrangement moves within a housing and provides the soft cannula and a guiding needle extending through the cannula to temporarily stiffen it. A drive effects an insertion movement of the cannula arrangement from a first position, where a puncturing tip is pulled back relative to a face of the housing, into a second position, where the puncturing tip protrudes beyond the face, and automatically effects a retracting movement of the guiding needle into a third position, where the puncturing tip is pulled back relative to the face. The face is formed by a base plate affixed to the housing so that when the cannula arrangement is in the second position, the face detaches from the housing. A holder element is connected to the soft cannula and couples to the base plate in the cannula arrangement'"'"'s second position.
11 Citations
24 Claims
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1. A device for inserting at least one insertion member having a puncturing tip into tissue of a patient and for affixing the at least one insertion member to the patient'"'"'s skin, the device comprising:
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a housing having at least one contact face for affixing the device onto the patient'"'"'s skin; an insertion arrangement movably arranged within the housing comprising the at least one insertion member to be inserted into the tissue and a holder element fixedly connected with at least a part of the at least one insertion member which is intended to remain for a long period inside the tissue; and a drive arranged within the housing for effecting an insertion movement of the insertion arrangement from a first position, in which the puncturing tip of the at least one insertion member is pulled back relative to the contact face, into a second position, in which the puncturing tip of the at least one insertion member protrudes beyond the contact face, so that the at least one insertion member is inserted into the tissue when the device is placed with its contact face on the patient during the insertion movement of the insertion arrangement, the insertion movement being a linear movement along an axis perpendicular to a plane formed by the at least one contact face, wherein the contact face is formed by a base plate affixed so that, after the insertion movement has been performed, the base plate detaches from the housing and wherein the holder element of the insertion arrangement is coupled to the base plate when the insertion arrangement by the insertion movement is brought into the second position, wherein in an initial position, the insertion arrangement is oriented substantially parallel to said plane formed by the at least one contact face and before the insertion movement can be performed is pivoted from the initial position into a first position, in which the insertion arrangement is oriented substantially perpendicular to said plane formed by the at least one contact face, by tilting a drive unit housing, the tilting being effected by a pivot formed at a drive unit housing travelling in a guide slot of a first housing element; wherein the at least one insertion member of the insertion arrangement comprises at least one soft member for insertion into the tissue and at least one guiding member for temporarily stiffening the at least one soft member during insertion into the tissue, wherein the guiding member forms the puncturing tip for puncturing the skin when inserting the at least one insertion member into the tissue, wherein the holder element is fixedly connected with the at least one soft member and wherein, after the insertion movement of the insertion arrangement the at least one soft member is coupled to the base plate by the holder element, the at least one guiding member is coupled to the housing so that, when the housing is removed from the base plate, the at least one guiding member is retained in the housing and is removed with the housing; and wherein the drive further effects, after the insertion movement of the insertion arrangement, a retracting movement of the at least one guiding member from the second position into a third position, in which the puncturing tip of the at least one guiding member is pulled back relative to the contact face, so that, when the at least one soft member is held in the second position by the holder element coupled to the base plate, the at least one guiding member is separated from the at least one soft member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 20)
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12. A device for inserting a soft member into a body tissue of a patient, the device comprising:
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a housing having at least one contact face for placing the device onto the skin of the patient; an insertion arrangement movably arranged within the housing comprising the soft member to be inserted into the tissue and a guiding member for temporarily stiffening the soft member during introduction into the tissue, wherein the guiding member forms a puncturing tip for puncturing the skin when inserting the stiffened soft member with the guiding member into the tissue; and a drive for effecting an insertion movement of the insertion arrangement from a first position into a second position, wherein in the first position, the insertion arrangement is oriented substantially perpendicular to a plane formed by the at least one contact face and insertion movement is a linear movement along an axis perpendicular to the plane, and the puncturing tip is pulled back relative to the contact face in the first position and protrudes beyond the contact face in the second position, so that, when during the insertion movement the device is placed with its contact face on the body of a patient, the soft member together with the guiding member is inserted into the tissue of the body of the patient and for effecting, after the insertion movement of the insertion arrangement, a retracting movement of the guiding member from the second position into a third position, in which its puncturing tip is pulled back relative to the contact face, so that, when the soft member is held in the second position, the guiding member is separated from the soft member, wherein, after the insertion movement of the insertion arrangement has been performed, the retraction movement of the guiding member is automatically performed, and wherein in an initial position, the insertion arrangement is oriented substantially parallel to said plane formed by the at least one contact face and, before the insertion movement can be performed, must be pivoted from the initial position into the first position, by tilting a drive unit housing, the tilting being effected by a pivot formed at a drive unit housing traveling in a guiding slot of a first housing element. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24)
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Specification