Patent ID: 11839391

Abstract:
A catheter system (100) for treating a treatment site (106) within or adjacent to a vessel wall (108A) of a blood vessel (108) within a body (107) of a patient (109) includes an energy source (124), a catheter fluid (132), and an emitter assembly (129). The energy source (124) generates energy. The emitter assembly (129) includes (i) at least a portion of an energy guide (122A) having a guide distal end (122D) that is selectively positioned near the treatment site (106), (ii) a plasma generator (133), and (iii) an emitter housing (260) that is secured to each of the energy guide (122A) and the plasma generator (133) to maintain a relative position between the guide distal end (122D) of the energy guide (122A) and the plasma generator (133). The energy guide (122A) is configured to receive energy from the energy source (124) and direct the energy toward the plasma generator (133) to generate a plasma bubble (134) in the catheter fluid (132). The plasma generator (133) directs energy from the plasma bubble (134) toward the treatment site (106).