| 摘要 |
The template of this invention includes a flexible sheet with indicia thereon to identify the proper sites and instruction of the proper method of insertion of a cannulated needle to drain a distended human knee bursa, A cannulated needle is used for draining the bursa which includes a rigid needle and a flexible cannula through which the rigid needle is inserted to be attached to a hypodermic syringe. The cannula has a plurality of apertures on its leading end which facilitate drainage by reducing the chance of clogging or blocking of the opening of the cannula.
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