Resources Contact Us Home
Surgical trocar

Image Number 4 for United States Patent #5342382.

A safety trocar is provided which includes a spring-loaded shield that shields the cutting tip of the obturator after the obturator penetrates tissue. The distal end of the shield is hemispheric in profile and contains slides within cutting tip. The rounded distal end enables the shield to spring forward to shield the cutting tip as soon as the tip perforates the tissue. In other embodiments, positive mechanical means effect shielding. Alternately, the obturator tip is retractable into the cannula or shield, by use of mechanical means such as a spring mechanism.

  Recently Added Patents
Systems and methods for sorting particles
Method and apparatus for using virtual machine technology for managing parallel communicating applications
Network fault detection
Semiconductor memory device, method of controlling read preamble signal thereof, and data transmission method
Unified feedback frame for supporting a plurality of feedback modes and a multiple-input multiple-output (MIMO) communication system using the unified feedback frame
Method of making a low-Rdson vertical power MOSFET device
Signal judgment method, signal judgment apparatus, program, and signal judgment system
  Randomly Featured Patents
Race track section for toy vehicles
Sound-proof wall made of FRP, and method of producing the same
Preview mode
Orthodontic pliers
Apparatus and mounting shell having retaining tongues formed by cuts
Tubeless tire valve stem inserter
Handle for a computer joystick
Apparatus and method for detecting non-alignment of a magnetic head with respect to a recording track on a record medium
SONOS memory device having side gate stacks and method of manufacturing the same
Method and apparatus for grouping mobile nodes in extended wireless LAN