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Syringe device with resistive ridges and methods of use

  • US 20040054332A1
  • Filed: 09/18/2002
  • Published: 03/18/2004
  • Est. Priority Date: 09/18/2002
  • Status: Active Grant
First Claim
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1. A syringe device comprising a hollow cylindrical member having an inner wall, a sealing gasket disposed within said cylindrical member, a plunger connected to said sealing gasket, said plunger implemented to drive said sealing gasket substantially axially within said cylindrical member, at least one ridge formed on said inner wall, said at least one ridge providing a change in resistance to said substantially axial movement of said sealing gasket within said cylindrical member.

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