Apparatus and methods for tissue anchoring of medical devices
First Claim
1. An apparatus for tissue anchoring of an elongate medical device body, the apparatus comprising:
- a retention member including a tubular sidewall that extends from a first end of the retention member to a second end of the retention member and defines a lumen of the retention member, the lumen extending along a longitudinal axis of the apparatus from a first opening thereof to a second opening thereof, and the retention member being transformable along the longitudinal axis from a first, gripping state to a second, open state, and vice versa, the first state being that at which the lumen has a first diameter and the first and second ends of the tubular sidewall are spaced apart by a first distance, and the second state being that at which the lumen has a second diameter and the first and second ends of the tubular sidewall are spaced apart by a second distance, the first diameter being smaller than the second diameter, and the first distance being greater than the second distance;
an elastic member secured between the first and second ends of the retention member, the elastic member being spring biased to push the first and second ends apart from one another, thereby holding the retention member in the first, gripping state;
a pair of force interface members, a first of the pair of interface members being coupled to the retention member in proximity to the first end thereof, a second of the pair of interface members being coupled to the retention member in proximity to the second end thereof, and the interface members being configured to receive opposing forces that compress the elastic member, against the spring bias thereof, and thereby transform the retention member to the second, open state; and
a flexible tissue fixation member directed outward from the retention member, when the retention member is in the first, gripping state;
wherein the apparatus is positionable along a length of the medical device body when the retention member is in the second, open state, and grips the medical device body when the retention member is in the first, gripping state.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus for tissue anchoring of a medical device includes a retention member and an elastic member secured between ends of the retention member. The retention member, being transformable along a longitudinal axis of the apparatus, is held by a spring bias of the elastic member in a first, gripping state; and, when opposing forces compress the elastic member, the retention member is transformed to a second, open state. In the first state, a lumen defined by a sidewall of the retention member has a diameter to forms a interference fit around a body of the device, and the ends of the retention member are spaced apart by a first distance; in the second state, the ends are spaced closer together than in the first state, and the diameter of the lumen is enlarged to allow movement of the apparatus along a length of the device body.
20 Citations
26 Claims
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1. An apparatus for tissue anchoring of an elongate medical device body, the apparatus comprising:
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a retention member including a tubular sidewall that extends from a first end of the retention member to a second end of the retention member and defines a lumen of the retention member, the lumen extending along a longitudinal axis of the apparatus from a first opening thereof to a second opening thereof, and the retention member being transformable along the longitudinal axis from a first, gripping state to a second, open state, and vice versa, the first state being that at which the lumen has a first diameter and the first and second ends of the tubular sidewall are spaced apart by a first distance, and the second state being that at which the lumen has a second diameter and the first and second ends of the tubular sidewall are spaced apart by a second distance, the first diameter being smaller than the second diameter, and the first distance being greater than the second distance; an elastic member secured between the first and second ends of the retention member, the elastic member being spring biased to push the first and second ends apart from one another, thereby holding the retention member in the first, gripping state; a pair of force interface members, a first of the pair of interface members being coupled to the retention member in proximity to the first end thereof, a second of the pair of interface members being coupled to the retention member in proximity to the second end thereof, and the interface members being configured to receive opposing forces that compress the elastic member, against the spring bias thereof, and thereby transform the retention member to the second, open state; and a flexible tissue fixation member directed outward from the retention member, when the retention member is in the first, gripping state; wherein the apparatus is positionable along a length of the medical device body when the retention member is in the second, open state, and grips the medical device body when the retention member is in the first, gripping state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A kit comprising an apparatus for tissue anchoring of an elongate medical device body, and an associated tool configured to engage with the apparatus and thereby facilitate positioning of the apparatus along a length of the device body, and wherein the apparatus comprises:
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a retention member including a tubular sidewall that extends from a first end of the retention member to a second end of the retention member and defines a lumen of the retention member, the lumen extending along a longitudinal axis of the apparatus from a first opening thereof to a second opening thereof, and the retention member being transformable along the longitudinal axis from a first, gripping state to a second, open state, and vice versa, the first state being that at which the lumen has a first diameter and the first and second ends of the tubular sidewall are spaced apart by a first distance, and the second state being that at which the lumen has a second diameter and the first and second ends of the tubular sidewall are spaced apart by a second distance, the first diameter being smaller than the second diameter, and the first distance being greater than the second distance; an elastic member secured between the first and second ends of the retention member, the elastic member being spring biased to push the first and second ends apart from one another, thereby holding the retention member in the first, gripping state; a pair of force interface members, a first of the pair of interface members being coupled to the retention member in proximity to the first end thereof, a second of the pair of interface members being coupled to the retention member in proximity to the second end thereof, and the interface members being configured to receive opposing forces that compress the elastic member, against the spring bias thereof, and thereby transform the retention member to the second, open state; and a flexible tissue fixation member directed outward from the retention member, when the retention member is in the first, gripping state; wherein, when the tool engages the apparatus force interface members, the apparatus, with the retention member thereof in the second, open state, is positionable along the length of the device body; and when the tool is released from engagement with the apparatus force interface members, the apparatus, with the retention member thereof in the first, gripping state, grips the medical device body. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for securing an anchoring apparatus around an elongate body of a medical device, the method comprising:
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providing the anchoring apparatus, the anchoring apparatus comprising; a retention member including a tubular sidewall that extends from a first end of the retention member to a second end of the retention member and defines a lumen of the retention member, the lumen extending along a longitudinal axis of the apparatus from a first opening thereof to a second opening thereof, and the retention member being transformable along the longitudinal axis from a first, gripping state to a second, open state, and vice versa, the first state being that at which the lumen has a first diameter and the first and second ends of the tubular sidewall are spaced apart by a first distance, and the second state being that at which the lumen has a second diameter and the first and second ends of the tubular sidewall are spaced apart by a second distance, the first diameter being smaller than the second diameter, and the first distance being greater than the second distance, an elastic member secured between the first and second ends of the retention member, the elastic member being spring biased to push the first and second ends apart from one another, thereby holding the retention member in the first, gripping state, a pair of force interface members, a first of the pair of interface members being coupled to the retention member in proximity to the first end thereof, a second of the pair of interface members being coupled to the retention member in proximity to the second end thereof, and the interface members being configured to receive opposing forces that compress the elastic member, against the spring bias thereof, and thereby transform the retention member to the second, open state, and a flexible tissue fixation member directed outward from the retention member, when the retention member is in the first, gripping state, wherein the apparatus is positionable along a length of the medical device body when the retention member is in the second, open state, and grips the medical device body when the retention member is in the first, gripping state; applying opposing forces to compress the elastic member of the apparatus against a spring bias of the elastic member and thereby transform the retention member from the first state to the second state; inserting the body of the device through the lumen of the apparatus while applying the opposing forces; and releasing the opposing forces to allow the retention member to transform back to the first state, at which the retention member grips the device body. - View Dependent Claims (22, 23, 24)
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25. An apparatus for tissue anchoring of an elongate medical device body, the apparatus comprising:
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a retention member including a tubular sidewall that extends from a first end of the retention member to a second end of the retention member and defines a lumen of the retention member, the lumen extending along a longitudinal axis of the apparatus from a first opening thereof to a second opening thereof, and the retention member being transformable along the longitudinal axis from a first, gripping state to a second, open state, and vice versa, the first state being that at which the lumen has a first diameter and the first and second ends of the tubular sidewall are spaced apart by a first distance, and the second state being that at which the lumen has a second diameter and the first and second ends of the tubular sidewall are spaced apart by a second distance, the first diameter being smaller than the second diameter, and the first distance being greater than the second distance; an elastic member secured between the first and second ends of the retention member, the elastic member being spring biased to push the first and second ends apart from one another, thereby holding the retention member in the first, gripping state; a pair of force interface members, a first of the pair of interface members being coupled to the retention member in proximity to the first end thereof, a second of the pair of interface members being coupled to the retention member in proximity to the second end thereof, and the interface members being configured to receive opposing forces that compress the elastic member, against the spring bias thereof, and thereby transform the retention member to the second, open state; and a tissue fixation member directed outward from the retention member, when the retention member is in the first, gripping state;
wherein the apparatus is positionable along a length of the medical device body when the retention member is in the second, open state, and grips the medical device body when the retention member is in the first, gripping state;an outer sheath extending between the force interface members and around the elastic member; a deployment member extending alongside the outer sheath and being free to slide relative to the sheath, and wherein; the deployment member includes an end secured to the first force interface member and an outward protruding ramp member spaced apart, along the longitudinal axis, from the secured end; and the tissue fixation member comprises a deployable tine or barb element, the tine or barb element including a fixed end and a free end, the fixed end coupled to the second force interface member, and the free end configured to engage with the ramp member of the deployment member; and when the opposing forces that compress the elastic member are released, the ramp member of the deployment member forces the free end of the tine or barb element outward from the longitudinal axis to engage tissue.
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26. A kit comprising an apparatus for tissue anchoring of an elongate medical device body, and an associated tool configured to engage with the apparatus and thereby facilitate positioning of the apparatus along a length of the device body, and wherein the apparatus comprises:
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a retention member including a tubular sidewall that extends from a first end of the retention member to a second end of the retention member and defines a lumen of the retention member, the lumen extending along a longitudinal axis of the apparatus from a first opening thereof to a second opening thereof, and the retention member being transformable along the longitudinal axis from a first, gripping state to a second, open state, and vice versa, the first state being that at which the lumen has a first diameter and the first and second ends of the tubular sidewall are spaced apart by a first distance, and the second state being that at which the lumen has a second diameter and the first and second ends of the tubular sidewall are spaced apart by a second distance, the first diameter being smaller than the second diameter, and the first distance being greater than the second distance; an elastic member secured between the first and second ends of the retention member, the elastic member being spring biased to push the first and second ends apart from one another, thereby holding the retention member in the first, gripping state; a pair of force interface members, a first of the pair of interface members being coupled to the retention member in proximity to the first end thereof, a second of the pair of interface members being coupled to the retention member in proximity to the second end thereof, and the interface members being configured to receive opposing forces that compress the elastic member, against the spring bias thereof, and thereby transform the retention member to the second, open state; and a tissue fixation member directed outward from the retention member, when the retention member is in the first, gripping state; wherein, when the tool engages the apparatus force interface members, the apparatus, with the retention member thereof in the second, open state, is positionable along the length of the device body; and when the tool is released from engagement with the apparatus force interface members, the apparatus, with the retention member thereof in the first, gripping state, grips the medical device body; wherein the apparatus further comprises an outer sheath extending between the apparatus force interface members and around the apparatus elastic member; the apparatus further comprises a deployment member extending alongside the outer sheath of the apparatus and being free to slide relative to the sheath; the deployment member includes an end secured to the first force interface member of the apparatus and an outward protruding ramp member spaced apart, along the longitudinal axis of the apparatus, from the secured end; the tissue fixation member of the apparatus comprises a deployable tine or barb element, the tine or barb element including a fixed end and a free end, the fixed end coupled to the second force interface member of the apparatus, and the free end configured to engage with the ramp member of the deployment member; and when the opposing forces that compress the elastic member of the apparatus are released, the ramp member of the deployment member forces the free end of the tine or barb element outward from the longitudinal axis to engage tissue.
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Specification