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A stent crimping device for crimping a stent onto a balloon delivery-catheter of the kind typically used in percutaneous transluminal coronary angioplasty procedures. The device comprises a pair of plates bearing mutually opposed parallel ribs. The ribbed plates move in a direction such that a stepp

A stent crimping device for crimping a stent onto a balloon delivery-catheter of the kind typically used in percutaneous transluminal coronary angioplasty procedures. The device comprises a pair of plates bearing mutually opposed parallel ribs. The ribbed plates move in a direction such that a stepped circular crimp may be rolled onto a stent thereby firmly fixing the stent to a catheter balloon.

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1. An apparatus for crimping a stent on to a catheter, comprising:an upper member including a plurality of downward facing semicircular crimping sectors wherein the sectors are parallel and of predetermined spacing; a lower member including a plurality of upward facing semicircular crimping sectors

1. An apparatus for crimping a stent on to a catheter, comprising:an upper member including a plurality of downward facing semicircular crimping sectors wherein the sectors are parallel and of predetermined spacing; a lower member including a plurality of upward facing semicircular crimping sectors wherein the sectors are parallel and of predetermined spacing; means for configuring the upper and lower members such that the downward and the upward facing crimping sectors are mutually opposed in an axial spaced relationship such that a catheter having a stent disposed about its periphery may be received between the mutually opposed crimping sectors,; and a compression member for maintaining the mutually opposed crimping sectors in a mutually opposite arraignment for receiving the stent and catheter, the compression member being compressible by an externally applied force to move the crimping sectors towards one another to provide a controlled crimping force to crimp the stent onto the outside of the catheter, wherein the compression member has a thickness to maintains, the upper and lower members in a mutually opposite arraignment for receiving the stent and catheter and is compressible to a certain thickness to prevent additional external crimping force to be applied to the stent and catheter.