[특허]Methods and devices for targeted injection of microspheres

Methods and devices for targeted injection of microspheres 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-031/00 A61M-025/01 A61B-019/00 A61B-017/00 A61B-017/12 A61M-025/00 A61M-025/04 A61N-005/10 A61B-006/00 A61B-006/03
출원번호	US-0387551 (2010-07-28)
등록번호	US-9149605 (2015-10-06)
국제출원번호	PCT/US2010/043552 (2010-07-28)
§371/§102 date	20120409 (20120409)
국제공개번호	WO2011/014562 (2011-02-03)
발명자 / 주소	Kleinstreuer, Clement
출원인 / 주소	Kleinstreuer, Clement
대리인 / 주소	Jenkins, Wilson, Taylor & Hunt, P.A.
인용정보	피인용 횟수 : 0 인용 특허 : 34

초록 ▼

A “Smart Micro-catheter” (SMC) system comprising a device for controlled particle release and drug delivery into a blood vessel, hepatic artery or any patho-physiological target is disclosed. Methods of using the micro-catheter system for optimal targeted delivery of therapeutic microspheres compris

대표청구항 ▼

1. A method of delivering an active agent to a target area of a body of a subject in need thereof, comprising: providing a smart micro-catheter (SMC) system for directing into a blood vessel of the subject a controlled stream comprising an active agent, wherein the SMC system comprises a SMC device with an adaptive nozzle inserted in the blood vessel; andregulating a release position of the controlled stream from the SMC system to release the active agent in a predetermined manner such that they are delivered to the target area of the body of the subject,wherein the SMC system comprises: (a) a source of active agent;(b) an injection system in flow communication with the source of active agent; and(c) a SMC device in flow communication with the injection system, comprising: (i) a tube having an inlet at one end, an outlet at an opposing end, and a wall joining the inlet and the outlet;(ii) an adaptive nozzle positioned within the blood vessel and having a nozzle inlet engaged with the tube outlet and a nozzle tip outlet distal to the tube outlet, wherein the nozzle tip outlet and the nozzle inlet are in flow communication and adapted for passage of a stream comprising an active agent therebetween; and(iii) one or more actuators operationally linked to the adaptive nozzle, wherein the one or more actuators can position the nozzle tip outlet and thereby regulate the stream release from the SMC device,wherein the catheter is manually operated to achieve the desired axial position and electro-mechanically operated to achieve the desired radial position, and wherein the catheter further comprises two stent rings with adjustable tripod struts and SMA-wires, folded in the nozzle area, which are deployed by electric current to position the nozzle plus nozzle tip according to the predetermined coordinates via a feedback control loop based on position sensor signals and a subject-specific microprocessor program. 2. A method of delivering an active agent to a target area of a body of a subject in need thereof, comprising: providing a smart micro-catheter (SMC) system for directing into a blood vessel of the subject a controlled stream comprising an active agent, wherein the SMC system comprises a SMC device with an adaptive nozzle inserted in the blood vessel; andregulating a release position of the controlled stream from the SMC system to release the active agent in a predetermined manner such that they are delivered to the target area of the body of the subject,wherein the SMC system comprises: (a) a source of active agent;(b) an injection system in flow communication with the source of active agent; and(c) a SMC device in flow communication with the injection system, comprising: (i) a tube having an inlet at one end, an outlet at an opposing end, and a wall joining the inlet and the outlet;(ii) an adaptive nozzle positioned within the blood vessel and having a nozzle inlet engaged with the tube outlet and a nozzle tip outlet distal to the tube outlet, wherein the nozzle tip outlet and the nozzle inlet are in flow communication and adapted for passage of a stream comprising an active agent therebetween; and(iii) one or more actuators operationally linked to the adaptive nozzle,wherein the one or more actuators can position the nozzle tip outlet and thereby regulate the stream release from the SMC device,wherein the one or more actuators comprise an active material, andwherein the SMC device further comprises a stent ring with adjustable tripod legs and SMA-wires, folded in the nozzle area, which are deployed by electric current to position the nozzle and nozzle tip and wherein the one or more actuators include two actuators antagonistic to each other allowing two way motion of the tripod leg.

이 특허에 인용된 특허 (34)

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Sladek David T., Dry drug particle delivery system and method for ventilator circuits.
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McKinnon Robert J. ; Dickerson Brian E. ; Taccini Thomas L., Electronic monitoring medication apparatus and method.
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Gonda,Igor; Rubsamen,Reid M.; Farr,Stephen J., Inhaled insulin dosage control delivery enhanced by controlling total inhaled volume.
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A62	인명구조; 소방(사다리 E06C)
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Methods and devices for targeted injection of microspheres 원문보기

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Methods and devices for targeted injection of microspheres 원문보기

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