06425887 is referenced by 294 patents and cites 3 patents.

A needle assembly (

70

) comprising an infusion needle (

11

) that includes a plurality of needle cannulae (

13

) made of a superelastic material such as nitinol. The needle cannulae are cold-worked or heat annealed to produce preformed bends (

16

) that can be straightened with in passageway (

21

) of a coaxial outer cannula (

12

) for introduction into the body of a patient. Upon deployment from the outer cannula, the needle cannulae substantially return to their preformed configurations for the introduction or extraction of materials at areas lateral to the entry path of the needle assembly. The plurality of needle cannulae (

13

) can be variably arranged or configured for their distal tip portions to attain a desired infusion pattern such as an umbrella shaped array (

75

), and/or be staggered axially.

Title
Multi-directional needle medical device
Application Number
9/668067
Publication Number
6425887 (B1)
Application Date
September 22, 2000
Publication Date
July 30, 2002
Inventor
Edward J Morris
Bloomington
IN, US
James Frederick McGuckin
Radnor
PA, US
Agent
Richard J Godlewski
US
Assignee
Cook Incorporated
IN, US
IPC
A61M 5/32
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