Tissue-removing catheter with distal tip

A tissue-removing catheter for removing tissue in a body lumen, the tissue-removing catheter comprising:

• an elongate drive member having an axis and proximal and distal end portions spaced apart from one another along the axis, the elongate drive member being sized and shaped to be received in the body lumen and configured to be rotated about the axis;
• a tissue-removing element operatively coupled to the distal end portion of the elongate drive member, the tissue-removing element being configured to be rotated by the elongate drive member to remove the tissue in the body lumen;
• an inner liner received within a drive coil and defining a liner passage sized and shaped to receive a guidewire therein, the inner liner having proximal and distal end portions;
• a bushing having proximal and distal end portions and a bushing passage extending through the proximal and distal end portions;
• and
• a distal tip extending distally outward from the tissue-removing element, wherein the distal tip has a proximal end portion disposed within the tissue-removing element and a distal end portion spaced distally from the tissue-removing element, the distal tip defining a tip opening extending through the proximal and distal end portions of the distal tip, the tip opening being in communication with the liner passage and configured to receive the guidewire therein,
• wherein the tissue-removing element is rotatable relative to the distal tip,
• wherein the bushing passage is in communication with the liner passage and the tip opening, and is configured to receive the guidewire therein,
• wherein the distal end portion of the inner liner is fixedly coupled to the proximal end portion of the bushing, and
• wherein the distal tip is integrally formed with the bushing such that the distal tip and the bushing are formed as a one-piece structure.