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US 6,623,448 B2Granted
Steerable drug delivery device
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorRenee C. Slater
Life of this patent
Estimating the term…
Abstract
A medical apparatus used to deliver a therapeutic substance. The medical apparatus provides a catheter assembly, which includes a translating body assembly and a fixed body assembly mated together in a telescopic configuration to allow the translating body assembly to move relative to the fixed body assembly and facilitate the delivery of the therapeutic substance to a targeted area. The catheter assembly also provides a steering assembly capable of moving the distal portion of the catheter assembly between a first direction and a second direction. A guiding catheter including an anchoring device can be used to secure the catheter assembly in position at the targeted area to facilitate deployment of a needle for delivering the therapeutic substance to the targeted area.
Claims33
A medical implement comprising:
- an outer member having a proximal end, a distal end, and a lumen extending therethrough;
- an inner member having a proximal portion, a distal portion and a needle coupled to said distal portion, said inner member being slidably disposed in said outer member lumen, and said inner member having a plurality of indentations for increasing the flexibility of said distal portion of said inner member;
- and
- a steering assembly coupled to said inner member for steering said needle to a target location.
1 more element
A medical implement comprising:
- a translating body assembly having a substantially flexible distal portion;
- a fixed body assembly configured to be mated with said translating body assembly, said translating body assembly being moveable relative to said fixed body assembly;
- a first steering tendon coupled to said distal portion of said translating body assembly to move said distal portion in a first direction;
- and
- a second steering tendon coupled to said distal portion of said translating body assembly to move said distal portion in a second direction, wherein said first steering tendon is operably engaged with a first puller assembly via a first biasing element and said second steering tendon is operably engaged with a second puller assembly via a second biasing element.
2 more elements
A medical device, comprising:
- an elongated member for inserting in a body lumen;
- a steering tendon coupled at one end to a distal portion of said elongated member to flex said distal portion of said elongated member;
- and
- a pulling assembly coupled to the other end of said steering tendon for applying tension to said steering tendon, said steering tendon being coupled to said pulling assembly by a biasing element.
1 more element
A medical implement for delivering a therapeutic substance to a target area within the human body comprising:
- a catheter body having a proximal end, a distal end, and a lumen extending there between;
- an intraventricular device moveable relative to said catheter body, said intraventricular device including a plurality of indentations for increasing the flexibility of a distal portion of said intraventricular device;
- a injection element in fluid communication with said intraventricular device for delivering a therapeutic substance;
- and an anchoring device positioned proximate to said distal end of said catheter body, said anchoring device configured to maintain said intraventricular device in a stationary position during delivery of said therapeutic substance.
1 more element
A medical implement for delivering a therapeutic substance to a target area within the human body comprising:
- an outer member having a proximal end, a distal end, and a lumen extending therethrough;
- an inner member having a proximal portion and a distal portion, said distal portion of said inner member having a plurality of indentations for increasing the flexibility of said distal portion;
- and
- a needle in fluid communication-with said inner member, said inner member slidably disposed in said outer member between a first position, where said needle is inboard of said outer member lumen, and a second position, where said needle is outboard of said outer member lumen;
- and
- a steering assembly coupled to said distal portion of said inner member for moving said needle between a first direction and a second direction.
3 more elements
A method for delivering a therapeutic substance to a target area within the human body comprising:
- delivering a medical implement to a target location within the human vasculature, said medical implement having an outer member, an inner member disposed in said outer member and a needle in fluid communication with said inner member, said inner member having a distal portion adjacent to said needle, said distal portion of said inner member having a plurality of indentations for increasing the flexibility of said distal portion of said inner member;
- moving said inner member relative to said outer member between a first position, where said needle is within said outer member and a second position, where said needle is outside of said outer member;
- applying a first tension to a first tendon to cause said needle to move in a first direction and/or applying a second tension to a second tendon to cause said needle to move in a second direction;
- and
- causing said needle to penetrate into said target location;
- and
- delivering said therapeutic substance to said target location.
4 more elements
A medical implement comprising:
- an outer member having a proximal end, a distal end, and a lumen extending therethrough;
- an inner member having a proximal portion, a distal portion and a needle coupled to said distal portion, said inner member being slidably disposed in said outer member lumen;
- a steering assembly coupled to said inner member for steering said needle to a target location;
- and
- wherein said inner member comprises a pattern of indentations formed on said distal portion for increasing the flexibility of said inner member.
2 more elements
A medical implement comprising:
- a translating body assembly having a substantially flexible distal portion;
- a fixed body assembly configured.to be mated with said translating body assembly, said translating body assembly,being moveable relative to said fixed body assembly;
- a first steering tendon coupled to said distal portion of said translating body assembly to move said distal portion in a first direction;
- a second steering tendon coupled to said distal portion of said translating body assembly to move said distal portion in a second direction;
- wherein said translating body assembly comprises an inner member having modification to provide said substantially flexible distal portion;
- wherein said inner member comprises a hollow hypotube;
- and
- wherein said modification of said hypotube comprises indentations formed into said hypotube along said substantially flexible distal portion.
5 more elements
A medical implement comprising:
- a translating body assembly having a substantially flexible distal portion;
- a fixed body assembly configured to be mated with said translating body assembly, said translating body assembly being moveable relative to said fixed body assembly;
- a first steering tendon coupled to said distal portion of said translating body assembly to move said distal portion in a first direction;
- a second steering tendon coupled to said distal portion of said translating body assembly to move said distal portion in a second direction;
- wherein said translating body assembly comprises an inner member having modification to provide said substantially flexible distal portion;
- wherein said inner member comprises a hollow hypotube;
- and
- wherein said modification of said;
- hypotube comprises indentations formed into said hypotube, wherein said indentations are variably spaced along said substantially flexible distal portion.
6 more elements
A medical device, comprising:
- an elongated member for inserting in a body lumen, said elongated member comprising a segment having grooves for increasing the flexibility of said segment of said elongated member;
- a steering tendon coupled at one end to said elongated member for flexing said segment of said elongated member;
- and
- a pulling assembly coupled to the other end of said steering tendon for applying tension to said steering tendon.
1 more element
Dependencies are inferred from the claim text.