Apparatus for exfoliating and collecting diagnostic material from inner walls of hollow viscera

• US 2,701,559 A
• Filed: 08/02/1951
• Issued: 02/08/1955
• Est. Priority Date: 08/02/1951
• Status: Expired due to Term

• Current Assignee: William A. Cooper
• Original Assignee: William A. Cooper
• Inventors: Cooper, William A.
• Application Number:
  US03/239,907
• Time in Patent Office: 1,286 Days
• US Class Current: 600/569
• CPC Class Codes: A61B 10/02 Instruments for taking cell samples or for biopsy A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48
• CPC Class Codes: A61B 2010/0216 Sampling brushes
• CPC Class Codes: A61B 2017/320004 abrasive
• CPC Class Codes: A61M 2025/1084 having features for increasing the shape stability, the reproducibility or for limiting expansion, e.g. containments, wrapped around fibres, yarns or strands
• CPC Class Codes: A61M 2025/1086 having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves
• CPC Class Codes: A61M 29/02 Dilators made of swellable material balloon catheters for angioplasty A61M25/104

Claims