An energy-based surgical system includes a light beam source and a probe. The light beam source is configured to selectively provide a beam of light. The probe defines a channel about a longitudinal axis thereof and a side opening near a distal end thereof. The channel is operatively connected to the light beam source and is configured to transmit the beam of light from the side opening. The beam of light is configured to detect the presence of a nerve within targeted tissue. The probe may further be configured apply treatment energy to tissue to treat tissue.

Disclosed herein are optical assemblies having thin, low profile shapes. These optical assemblies may be used with fiber coupled lasers and other light sources, including high power sources, to irradiate tissue at a wavelength suitable for inducing ablation or coagulation to a target depth, denaturation, thermal modification of a tissue, and/or preferential injury to a target tissue structure. Example optical assemblies can produce substantially uniform illumination patterns that are useful for treating superficial tissue, including the internal or luminal (e.g., esophageal) tissue. Some examples may have capability for cooling superficial tissue or skin, such as a detachable, reusable heat sink for active cooling without consumables, fluid pumps, or other cooling equipment.

The present disclosure is directed towards a medical instrument. The medical instrument includes a housing and an end effector assembly operably connected to the housing. The end effector assembly includes first and second jaw members each having a tissue contacting surface, at least one of the first and second jaw members movable between a first, spaced-apart position and a second proximate position, wherein in the second position, the jaw members cooperate to define a cavity configured to receive tissue between the jaw members. The end effector also includes at least one light-emitting element coupled to at least one of the first and second jaw members, the at least one light-emitting element adapted to deliver light energy to tissue grasped between the first and second jaw members to treat the tissue.

A medical system may include: a medical device including an elongate shaft configured to access a treatment site within a patient and a handle coupled to a proximal end of the elongate shaft; a laser device including an elongate tubular member configured for insertion through a working lumen of the medical device, the elongate tubular member including a cooling channel and a laser fiber extending distally within the cooling channel; and a fluid management system including an inflow pump configured to pump fluid from a first fluid supply source through the elongate shaft to the treatment site, a cooling pump configured to pump fluid from a second fluid supply source through the cooling channel, and a controller configured to control the inflow pump and the cooling pump.

A steerable laser probe may include a handle, and inner bore of the handle, an actuation structure of the handle, a housing tube, and an optic fiber disposed within the inner bore of the handle and the housing tube. The housing tube may include a first housing tube portion having a first stiffness and a second housing tube portion having a second stiffness. The second stiffness may be greater than the first stiffness. A surgeon may aim the steerable laser probe by varying a rotational position of the handle and an amount of compression of the actuation structure.

The present disclosure is directed towards a medical instrument. The medical instrument includes a housing and an end effector assembly operably connected to the housing. The end effector assembly includes first and second jaw members each having a tissue contacting surface, at least one of the first and second jaw members movable between a first, spaced-apart position and a second proximate position, wherein in the second position, the jaw members cooperate to define a cavity configured to receive tissue between the jaw members. The end effector also includes at least one light-emitting element coupled to at least one of the first and second jaw members, the at least one light-emitting element adapted to deliver light energy to tissue grasped between the first and second jaw members to treat the tissue.

Systems and method relate to administering phototherapy. A device includes a hollow structure having at least a first open end. The hollow structure includes a rotatable member, one or more coherent light generators, and, for each coherent light generator, one or more lenses or mirrors optically connected to the coherent light generator and configured to alter at least one aspect of a beam of coherent light. The device further includes a processing circuit including a processor and a memory storing instructions. The instructions, when executed by the processor, cause the processor to accept an input from an operator and generate one or more beams of coherent light according to a plurality of settings configured to produce a therapeutic effect at a targeted treatment site. Additionally, the rotatable member is configured to be rotated to direct the one or more beams of coherent light to the targeted treatment site.

The present disclosure is directed towards a medical instrument. The medical instrument includes a housing and an end effector assembly operably connected to the housing. The end effector assembly includes first and second jaw members each having a tissue contacting surface, at least one of the first and second jaw members movable between a first, spaced-apart position and a second proximate position, wherein in the second position, the jaw members cooperate to define a cavity configured to receive tissue between the jaw members. The end effector also includes at least one light-emitting element coupled to at least one of the first and second jaw members, the at least one light-emitting element adapted to deliver light energy to tissue grasped between the first and second jaw members to treat the tissue.

A medical system may include: a medical device including an elongate shaft configured to access a treatment site within a patient and a handle coupled to a proximal end of the elongate shaft; a laser device including an elongate tubular member configured for insertion through a working lumen of the medical device, the elongate tubular member including a cooling channel and a laser fiber extending distally within the cooling channel; and a fluid management system including an inflow pump configured to pump fluid from a first fluid supply source through the elongate shaft to the treatment site, a cooling pump configured to pump fluid from a second fluid supply source through the cooling channel, and a controller configured to control the inflow pump and the cooling pump.

A catheter system (100) for treating a treatment site (106) includes an energy source (124), a balloon (104), an energy guide (122A), an inflation conduit (140) and a pressure sensor assembly (142). The balloon (104) is positionable substantially adjacent to the treatment site (106). The balloon (104) has a balloon wall (130) that defines a balloon interior (146) that receives a balloon fluid (132). The energy source (124) generates energy that is received by the energy guide (122A) so that the energy guide (122A) can guide the light energy into the balloon interior (146). The inflation conduit (140) is in fluid communication with the balloon interior (146). The inflation conduit (140) is configured to convey the balloon fluid (132) into the balloon interior (146). The pressure sensor assembly (142) is configured to sense a balloon pressure of the balloon fluid (132) within the balloon interior (146). The pressure sensor assembly (142) is in fluid communication with the balloon interior (146) and the inflation conduit (140).