A61B18/082

CATHETER WITH IMPROVED TEMPERATURE RESPONSE
20230225792 · 2023-07-20 ·

A medical probe, consisting of an insertion tube having a distal end configured for insertion into a body of a patient and containing a lumen having an electrical conductor for conveying electrical energy. The probe also has a conductive cap attached to the distal end of the insertion tube and coupled electrically to the electrical conductor, the cap including a side wall having multiple longitudinal bores therein. There are a plurality of thermocouples disposed in respective ones of the longitudinal bores, and an electrically conductive cement at least partially fills the longitudinal bores so as to secure the thermocouples in the bores while making electrically conductive contact between the thermocouples and the conductive cap.

Ablation system with force control

An ablation system comprises: an ablation catheter and a console. The ablation catheter comprises: a shaft including a proximal end, a distal portion and a distal end; an ablation element configured to deliver energy to tissue; and a force maintenance assembly comprising a force maintenance element and configured to control and/or assess contact force between the ablation element and cardiac tissue. The console is configured to operably attach to the ablation catheter and comprises: an energy delivery assembly configured to provide energy to the ablation element. Methods of ablating tissue are also provided.

Wireless pairing of a surgical device with another device within a sterile surgical field based on the usage and situational awareness of devices

A surgical system includes a first surgical device comprising a control circuit. The control circuit is configured to be situationally aware of events occurring within the vicinity of the first surgical device according to data received from a database, a patient monitoring device, or a paired surgical device, or any combination of a database, patient monitoring device, or paired surgical device. The control circuit is configured to be wirelessly paired with a second surgical device according to usage of the first surgical device and the events of which the first surgical device is situationally aware.

Cauterization Device for Sealing Pleural Layers

A cauterization device includes a handpiece configured to be grasped by a user. The handpiece includes a housing, a heat control circuit, and a control switch. A cannula has a cannula lumen, a cannula side wall surrounding the cannula lumen, a cannula proximal end portion, and a cannula distal end. The cannula proximal end portion is coupled to the housing of the handpiece. A stylet has a shaft portion and a distal heat conductive body. The distal heat conductive body is electrically coupled to the heat control circuit. The distal heat conductive body has a first end and a tapered portion that distally terminates at a second end. The shaft portion is located, at least in part, in the cannula lumen. The insulator member is configured to thermally separate the cannula distal end from the distal heat conductive body of the stylet.

APPARATUS AND METHOD PROVIDING A HAND-MOUNTED SURGICAL TOOL
20230210582 · 2023-07-06 ·

A method and apparatus for providing hand-mounted surgical tools is provided. The apparatus includes a housing configured to be mounted to a body of a user. The apparatus also includes an optical source to generate a first optical signal in an absorption spectrum of a biocompatible fluorescing dye (BFD). The apparatus also includes an optical detector to detect a second optical signal in an emission spectrum of the BFD. The apparatus also includes a processor to receive a signal from the optical detector that indicates that the second optical signal was detected by the optical detector. The processor is further configured to cause the apparatus to transmit a signal to a non-visual feedback device to cause the non-visual feedback device to output non-visual feedback to the user that the second optical signal was detected by the optical detector.

SURGICAL PROBE WITH INDEPENDENT ENERGY SOURCES

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.

System for its use in the treatment of vascular stenosis and occlusions
11547475 · 2023-01-10 ·

A system to be used inside a dialysis unit for dilating obstructed blood vessel, comprises a catheter, a device, a remote-control box, supportive components and connection cables. A catheter comprises an elongated portion, a proximal end and a distal end, extended longitudinally. A distal end of a catheter has a convectively heating tip with a heat generating element and an inflatable balloon. A device has a radiofrequency current generator to supply and control a heating process of a heat generating element of a catheter tip. A remote-control box comprises a valve assembly, a heat activation switch and a balloon inflation switch to facilitate a treatment process.

Systems and methods for creating arteriovenous (AV) fistulas

A system for creating an arteriovenous (AV) fistula comprises a vessel access sheath having a hollow interior and an exit port, a side access needle catheter configured to fit within the hollow interior of the sheath, a needle configured to be inserted into a blood vessel through the side access needle catheter, a toggle delivery catheter configured to fit within the hollow interior of the sheath, and a toggle apparatus configured to be delivered into a vessel through the toggle delivery catheter. The toggle apparatus comprises a shaft and a toggle member pivotably attached to a distal end of the shaft. A source of RF energy or resistive heat energy may be provided for application to the toggle member and/or to a heater insert in the toggle delivery catheter, for the purpose of creating the fistula.

Stent using wireless transmitted power and external operating apparatus thereof

A stent device including a stent coated with a photosensitizer, the stent including a pair of electrodes; and a circuit fixed to the stent, the circuit including a light emitting diode, a power receiving means for wirelessly receiving power from the outside, and converting the power to electric power; a second communicating means for receiving a control command from the outside; and a second control means for applying, based on the control command, the electric power to the electrodes causing an electric current to flow through the stent between the electrodes, the flow causing heating of the stent, and for controlling a temperature of the stent to provide hyperthermia therapy to a tumor, the second control means further for applying, based on the control command, the electric power to the light emitting diode to emit a predetermined wavelength of light to the photosensitizer to provide photodynamic therapy to the tumor.

Radiofrequency ablation of tissue within a vertebral body

Methods and systems for modulating intraosseous nerves (e.g., nerves within bone) are provided. For example, the methods and systems described herein may be used to modulate (e.g., denervate, ablate) basivertebral nerves within vertebrae. The modulation of the basivertebral nerves may facilitate treatment of chronic back pain. The modulation may be performed by a neuromodulation device (e.g., an energy delivery device).