公开(公告)号：WO2004064645A1

公开(公告)日：2004-08-05

申请号：PCT/US2004/000439

申请日：2004-01-09

Applicant: MEDTRONIC, INC.

Inventor： JAHNS, Scott, E. ,  BONNER, Mathew, D. ,  OEHME, Gary, S. ,  KEOGH, James, R.

IPC: A61B17/00

CPC classification number: A61B17/3478 ,  A61B17/00234 ,  A61B17/205 ,  A61B2017/00247 ,  A61B2017/00876 ,  A61B2017/2936 ,  A61B2017/2943 ,  A61B2017/306 ,  A61B2018/00392 ,  A61B2090/034 ,  A61M5/32 ,  A61M2025/0086 ,  A61M2025/0087

Abstract: Apparatus and methods for injecting biological agents into tissue. Devices are provided having elongate shafts and distal injection heads for transversely driving needles into tissue and injecting medical agents into the tissue through the needles. A longitudinal force directed along the shaft can be translated to a needle driving force transverse to the shaft. Some devices provide controllably variable needle penetration depth. Devices include mechanical needle drivers utilizing four link pantographs, rack and pinions, and drive yokes for driving a first needle bearing body toward a second tissue contacting body. Other devices include inflatable members for driving and retracting needles. Still other devices include magnets for biasing the needles in extended and/or retracted positions. The invention includes minimally invasive methods for epicardially injecting cardiocyte precursor cells into infarct myocardial tissue.

Abstract translation: 将生物制剂注入组织的装置和方法。 设备具有细长的轴和远端注射头，用于将针横向驱动到组织中，并通过针将药剂注射到组织中。 沿着轴引导的纵向力可以平移到与轴垂直的针驱动力​​。 一些装置提供可控的可变针穿透深度。 设备包括利用四个连杆缩放仪，齿条和小齿轮的机械针驱动器和用于将第一滚针轴承体朝向第二组织接触体驱动的驱动轭。 其他装置包括用于驱动和缩回针的可充气构件。 还有其它装置包括用于在延伸和/或缩回位置偏置针的磁体。 本发明包括用心外膜将心脏细胞前体细胞注入梗死心肌组织的微创方法。