Holes
Tip Geometries
Click above for:
Bullet Nose
Pencil Point
Bias or Single Grind
Lancet
Back Bevel
Touhy Tip
Modified Touhy Tip
Crowne Point
Swaged End
Huber
Holes
Click above for:
Ground Notch
EDM Holes
Punched/Back Eye
Drilled/Ground Holes
Angled Notch
Laser Slot
Other Treatments
Click above for:
Echogenic Tips
Etch Mark
Depth Marks
Notched Stylets
Bent Shaft
Coiled Tubing
Bumps or Indents
Special Coating
Ground Notch is a notched hole or vent which is ground through the wall of a cannula. It is used to direct the flow. It is specified by the notch depth, notch position, notch radius and notch width.
EDM Holes: "Electrical Discharge Machining" holes are created by burning a specific geometric shape into the cannulae. The number, location and style of any hole can be specified to suit your particular application.
Punched Holes have a portion of the cannula wall removed to create an opening or vent, usually designed to have flow on both sides of the needle and reduce the potential for vessel damage. Also called Back Eyes, Punched Holes are used in AV Fistula needles..
Drilled/Ground Holes are used in closed tip cannula as well as in other applications where an orifice is desired. The hole dimensions are specified by position and size. Holes can be designed with a cutting edge to be used, for example, to cut tissue, or with a smooth transition to prevent catching or coring. Design criteria include: radius, depth, width and length, all of which can be specified to suit your particular application.
Angled Notches are customized cuts to create cutting surface areas or smooth transitions. These can be designed to cut tissue or prevent catching.
Laser Slots are specially shaped holes with tight tolerances which are created with a laser. A multitude of hole shapes and sizes are available.
