Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Needle core biopsy device










Image Number 3 for United States Patent #5817033.

A needle biopsy device has a suction source, an inner cannula, and an outer cannula. The inner cannula has a biopsy reservoir formed proximate the distal end thereof and also has a lumen formed therein. The lumen provides fluid communication from the suction source to the biopsy reservoir. The outer cannula is slidably disposed about the inner cannula and has a cutter formed at the distal end thereof. The outer cannula has a distal position wherein it substantially covers the biopsy reservoir and has a proximate position wherein the biopsy reservoir is substantially exposed. An actuating mechanism moves the outer cannula from the distal position to the proximate position thereof, facilitates the application of suction from the suction source to the biopsy reservoir and moves the outer cannula from the proximate position to the distal position thereof. Moving the outer cannula from the distal position to the proximate position thereof and creating suction that the biopsy reservoir causes a tissue sample to be pulled into the biopsy reservoir. Moving the outer cannula from the proximal position to the distal position thereof causes the cutter to cut the tissue sample from surrounding tissue and also captures the tissue sample within the biopsy reservoir.








 
 
  Recently Added Patents
Luminous stick
Balancing the loads of servers in a server farm based on an angle between two vectors
Cylindrical hair band
Robot and method for milking a cow by this robot
Method of measuring interference
Tagged joint compound and method of identification
Phase frequency detector circuit
  Randomly Featured Patents
Semiconductor device
Test for oxidative stress using cell suspensions
Absorbent microbiocidal fabric and process for making same
Cable anchorage
Sewage disposal plant
Feeder for bales of feed material
Certain pyrido-pyrimidines for treating mammalian and avian infections
Circuit arrangement for processing, transmitting, and acoustically reproducing digitized audio-frequency signals
Silicon carbide crystal ingot, silicon carbide crystal wafer, and method for fabricating silicon carbide crystal ingot
Antimicrobial articles made from nitrile or natural rubber