Abstract: A probe is configured with a flushing port and an evacuation port to establish a flow path to remove blood from a resected tissue. The probe comprises a balloon configured to expand and contact the resected tissue to compress filaments and improve access to the underlying blood vessels for coagulation with an energy source. An endoscope can be used to view the tissue, and the balloon may comprise a transparent material or a viewing port to allow imaging of the bleeding tissue through the balloon. The probe may have a light source to illuminate the tissue with a beam oriented at an oblique angle to the tissue surface, which can decrease interference from blood and may allow more localized coagulation of the blood vessel.

Abstract: An energy source is offset from an elongate probe axis with an extension. The amount of offset of the energy source can be controlled by varying an amount of offset of the extension. The energy source rotated and translated at the offset distance to resect tissue. In some embodiments, the probe is configured to receive a second treatment probe comprising a second energy source, in which the second energy source is rotated and translated relative to the first treatment probe, which can improve positional accuracy and stability. The energy source and the extension can be coupled to a linkage to offset the energy source, and to translate and rotate the energy source with varying amounts of offset. The linkage can be coupled to a processor and one or more of the energy source moved in accordance with a treatment profile.

Abstract: Disclosed herein is a medical leadless pacemaker delivery system adapted to engage and disengage with leadless pacemakers to allow for the repeated use of the leadless pacemaker delivery system in delivering and implanting multiple leadless pacemakers into a patient heart in a serial or repeated manner. The leadless pacemaker delivery system includes a handle, an attachment mechanism, a torque portion, and a rotation limiter. The handle includes a housing. The attachment mechanism is operably coupled to the housing and configured to actuate between a released state and an engaged state. The torque portion is operably coupled to the housing and rotatable relative to the housing to transition the attachment mechanism between the released and engaged states. The torque portion includes a shaft. The rotation limiter is in sliding engagement with the shaft between a first stop and a second stop. The rotation limiter includes a first helical thread.

Abstract: A device for loading a leadless pacemaker onto a catheter-based delivery system includes a distal portion and a proximal portion. The distal portion includes a retention feature configured to receive the leadless pacemaker. The proximal portion is proximal the distal portion and includes a funneling structure opening toward the retention feature. The distal and proximal portions of the device are configured such that, when a distal end of the catheter-based delivery system is brought towards the proximal portion of the loading device and the leadless pacemaker is retained by the retention feature, the funneling structure guides features of the distal end of the catheter-based delivery system through an opening in an attachment feature located at a proximal end of the leadless pacemaker.

Abstract: A device for loading a leadless pacemaker onto a catheter-based delivery system includes a distal portion and a proximal portion. The distal portion includes a retention feature configured to receive the leadless pacemaker. The proximal portion is proximal the distal portion and includes a funneling structure opening toward the retention feature. The distal and proximal portions of the device are configured such that, when a distal end of the catheter-based delivery system is brought towards the proximal portion of the loading device and the leadless pacemaker is retained by the retention feature, the funneling structure guides features of the distal end of the catheter-based delivery system through an opening in an attachment feature located at a proximal end of the leadless pacemaker.

Abstract: Disclosed herein is a medical leadless pacemaker delivery system adapted to engage and disengage with leadless pacemakers to allow for the repeated use of the leadless pacemaker delivery system in delivering and implanting multiple leadless pacemakers into a patient heart in a serial or repeated manner. The leadless pacemaker delivery system includes a handle, an attachment mechanism, a torque portion, and a rotation limiter. The handle includes a housing. The attachment mechanism is operably coupled to the housing and configured to actuate between a released state and an engaged state. The torque portion is operably coupled to the housing and rotatable relative to the housing to transition the attachment mechanism between the released and engaged states. The torque portion includes a shaft. The rotation limiter is in sliding engagement with the shaft between a first stop and a second stop. The rotation limiter includes a first helical thread.

Abstract: Disclosed herein is a medical tool adapted to engage and disengage with leadless pacemakers to allow for the repeated use of the tool in delivering and implanting multiple leadless pacemakers into a patient heart in a serial or repeated manner. The tool includes a handle, an attachment mechanism, a torque portion, and a rotation limiter. The handle includes a housing. The attachment mechanism is operably coupled to the housing and configured to actuate between a released state and an engaged state. The torque portion is operably coupled to the housing and rotatable relative to the housing to transition the attachment mechanism between the released and engaged states. The torque portion includes a shaft. The rotation limiter is in sliding engagement with the shaft between a first stop and a second stop. The rotation limiter includes a first helical thread. The tool also includes a second helical thread in threaded engagement with the first helical thread and operably coupled to the housing.

Abstract: Disclosed herein is a medical tool adapted to engage and disengage with leadless pacemakers to allow for the repeated use of the tool in delivering and implanting multiple leadless pacemakers into a patient heart in a serial or repeated manner. The tool includes a handle, an attachment mechanism, a torque portion, and a rotation limiter. The handle includes a housing. The attachment mechanism is operably coupled to the housing and configured to actuate between a released state and an engaged state. The torque portion is operably coupled to the housing and rotatable relative to the housing to transition the attachment mechanism between the released and engaged states. The torque portion includes a shaft. The rotation limiter is in sliding engagement with the shaft between a first stop and a second stop. The rotation limiter includes a first helical thread. The tool also includes a second helical thread in threaded engagement with the first helical thread and operably coupled to the housing.

Abstract: A device for loading a leadless pacemaker onto a catheter-based delivery system includes a distal portion and a proximal portion. The distal portion includes a retention feature configured to receive the leadless pacemaker. The proximal portion is proximal the distal portion and includes a funneling structure opening toward the retention feature. The distal and proximal portions of the device are configured such that, when a distal end of the catheter-based delivery system is brought towards the proximal portion of the loading device and the leadless pacemaker is retained by the retention feature, the funneling structure guides features of the distal end of the catheter-based delivery system through an opening in an attachment feature located at a proximal end of the leadless pacemaker.

Abstract: The invention provides surgical devices that provide access to the sub-retinal space using delicate traction to hold the sensory retina to create and maintain a patent sub-retinal space of sufficient size to introduce and perform treatments on the eye. Such treatments may include the introduction of illumination or imaging agents or tools, surgical tools, the infusion of pharmaceutical or biological agents, and the placement of grafts, transplants or implants and the closure of the site through the delivery of a sealant.

Abstract: The invention provides surgical devices that provide access to the sub-retinal space using delicate traction to hold the sensory retina to create and maintain a patent sub-retinal space of sufficient size to introduce and perform treatments on the eye. Such treatments may include the introduction of illumination or imaging agents or tools, surgical tools, the infusion of pharmaceutical or biological agents, and the placement of grafts, transplants or implants and the closure of the site through the delivery of a sealant.

Abstract: Surgical devices are provided for aspiration of the subretinal fluid (SRF) of the eye in a retinal detachment that allows re-apposition of the sensory retina to the underlying RPE. The device is connected to a vacuum source, introduced into the posterior chamber through a sclerostomy port and placed against the detached retinal tissue. The device pulls on and captures the surface of the sensory retina, causing a micro needle to pierce through the tissue. As the sensory retina is captured and held in place by the vacuum, a protected pocket is created and the tissue is prevented from folding onto itself and occluding the micro needle tip.

Abstract: A medical instrument has a set of opposing jaws that can be articulated, both left and right, from centerline. The instrument has a proper bend radius and support for the jaw actuation member and cutter driving member. The bendable support for the drive members comprises tightly wound coil springs. Another embodiment of the invention controls the degree of articulation at the handle of the laparoscopic instrument. A further embodiment of the invention incorporates a locking mechanism to prevent motion of the wrist while the user performs other operations on the device. The locking mechanism also includes an indexing feature with which the user can index and choose the necessary amount of angle between preset angles.