Methods of making an interventional medical device useful in performing treatment under magnetic resonance imaging

A method of making a medical device useful in procedures performed under magnetic resonance imaging, said method comprising:

• selecting a first material to form an interventional medical device;
• selecting a second material to form a marker to be included in a portion of the interventional medical device, the second material comprising a magnetically susceptible material that is different from the first material;
• incorporating the second material into a portion of the first material;
• forming the first and second materials into a desired structure to form the interventional medical device;
• wherein the first material comprises a ribbon having a lengthwise axis;
• further comprising rolling the ribbon along the lengthwise axis to form a c-shaped intermediate member having opposing portions and a longitudinal void disposed between the opposing portions;
• wherein the step of incorporating the second material into a portion of the first material comprises disposing the second material into the longitudinal void;
• wherein the second material comprises a wire;
• further comprising a step of melting the wire.

A method of making a medical device useful in procedures performed under magnetic resonance imaging, said method comprising:

• selecting a first material to form an interventional medical device;
• selecting a second material to form a marker to be included in a portion of the interventional medical device, the second material comprising a magnetically susceptible material that is different from the first material;
• incorporating the second material into a portion of the first material;
• and
• forming the first and second materials into a desired structure to form the interventional medical device;
• wherein the first material comprises a ribbon having a lengthwise axis;
• further comprising rolling the ribbon along the lengthwise axis to form a c-shaped intermediate member having opposing portions and a longitudinal void disposed between the opposing portions;
• wherein the step of incorporating the second material into a portion of the first material comprises disposing the second material into the longitudinal void;
• wherein the second material comprises a wire;
• further comprising a step of melting the wire;
• wherein the steps of melting the wire and incorporating the second material into a portion of the first material are performed sequentially.

A method of making a medical device useful in procedures performed under magnetic resonance imaging, said method comprising:

• selecting a first material to form an interventional medical device;
• selecting a second material to form a marker to be included in a portion of the interventional medical device, the second material comprising a magnetically susceptible material that is different from the first material;
• incorporating the second material into a portion of the first material;
• and
• forming the first and second materials into a desired structure to form the interventional medical device;
• wherein the first material comprises a ribbon having a lengthwise axis;
• further comprising rolling the ribbon along the lengthwise axis to form a c-shaped intermediate member having opposing portions and a longitudinal void disposed between the opposing portions;
• wherein the step of incorporating the second material into a portion of the first material comprises disposing the second material into the longitudinal void;
• wherein the second material comprises a wire;
• further comprising a step of melting the wire;
• wherein the steps of melting the wire and incorporating the second material into a portion of the first material are performed simultaneously.