36results about "Instrument probes" patented technology

The invention discloses a plasma tissue dissociation knife, and relates to the technical field of medical instruments. In order to solve the problems that when an existing endoscopic surgery relates to a plurality of instruments, the instruments need to be frequently switched for surgical operation, and the surgical efficiency is reduced, the following technical scheme is provided: the endoscopic surgical instrument comprises a tool bit, a tool bar, a handle and a cable which are connected in sequence; the cutter head comprises a blade telescopic assembly arranged on the head portion, an endoscope guide tube and a cutter head telescopic control mechanism are arranged in the handle, and the cutter head telescopic control mechanism drives a blade in the blade telescopic assembly to stretch out and draw back through a transmission piece. The positive cable extends to the tool bit to be connected with the blade telescopic assembly, the negative steel pipe is connected with the negative cable, and double-frequency emitter cutting is formed at the blade; the suction channel arranged in the cutter bar is used for flushing the surgical field and sucking turbid liquid in the operation. Compared with a traditional cold instrument, cutting efficiency, bleeding amount control, clear surgical field, cutter bar size optimization, cutting flexibility, sealing performance, operation convenience and the like are remarkably improved.

The invention discloses a self-cleaning type radio frequency tool bit, and particularly relates to the field of radio frequency tool bits, the self-cleaning type radio frequency tool bit comprises a handle, a pipeline assembly connected to the front end of the handle and a tool bit assembly mounted at the front end of the pipeline assembly, an outer pipe rotating around the front end of the tool bit assembly is mounted at the front end of the tool bit assembly, and a rotating cleaning piece is mounted in the outer pipe; the pipeline assembly and the inner pipe are sleeved with a protection pipe, a channel is reserved between the protection pipe and the pipeline assembly and between the protection pipe and the outer pipe, and a connecting piece driving the outer pipe to rotate at the front end of the tool bit assembly is installed in the channel. The rotating outer tube and the cleaning piece are matched with the cleaning channel to clean and wash diseased tissues and attachments adhered to the front end of the radio frequency tool bit, the excitation state of the radio frequency tool bit in the operation process is guaranteed, the operation time is shortened, the infection risk is reduced, and smooth operation is guaranteed.

1. A cryotherapy system comprising: an elongated device having a body, a proximal end, and a distal end, the elongated device configured to be disposed within a hollow organ, the elongated device including a cryopathway fluidly connecting a cryopathic source with the distal end of the device, the cryopathway configured to enable flow of cryopathic fluid into the hollow organ, an optical assembly within the body configured to visualize a field of view between the device distal end and a target site within the hollow organ, the irrigation path including at least one irrigation opening at the device distal end, the irrigation path configured to connect a irrigation fluid source with the at least one irrigation opening and release irrigation fluid within the hollow organ, and at least one flow reducer in the irrigation path configured to narrow an internal lumen through which the irrigation fluid flows.

The application discloses a multifunctional surgical dissector, which comprises a hollow shell, an electrode knife head, a PCB board, a high-frequency electrotome conductive sheet, an ultrasonic input conductive sheet, an ultrasonic output conductive sheet, a function switching knob and an ultrasonic transducer. The function switching knob is rotated to control the conduction route. When the function switching knob is rotated to the high-frequency electrotome conductive sheet and the ultrasonic input conductive sheet and the ultrasonic output conductive sheet are all conducted, the electrode knife head can have high-efficiency cutting of the high-frequency electrotome, and can significantly reduce tissue adhesion and thermal damage by using the vibration characteristics of the ultrasonic surgical knife, thereby improving the operation efficiency. When the function switching knob is rotated to only connect the high-frequency electrotome conductive sheet, the device can be used as a high-frequency electrotome alone. When the function switching knob is rotated to only connect the ultrasonic input conductive sheet and the ultrasonic output conductive sheet, the device can be used as an ultrasonic surgical knife alone, so that the device has multiple functions and is suitable for various surgical environments.

A method for determining the recovery ability of at least one mechanism of a surgical instrument includes establishing communication with the surgical instrument, assisting the operation of the surgical instrument during a procedure, acquiring data related to the surgical instrument, evaluating the data acquired in relation to the surgical instrument to determine a digital evaluation of the impact on the performance of at least one mechanism of the surgical instrument, and determining the recovery ability of at least one mechanism of the surgical instrument based on the digital evaluation.

The invention discloses an electric incision knife device for a digestive tract endoscopic surgical instrument control system, which comprises a surgical actuator which is positioned at the far end of the electric incision knife device and comprises a flexible arm and an incision knife arranged in the middle of the flexible arm in a penetrating manner; the driving part is located at the near end of the electric incision knife device and comprises a bottom plate, a flexible arm driving assembly and an electrode driving assembly, and the flexible arm driving assembly and the electrode driving assembly are arranged on the bottom plate; the switching part is connected between the driving part and the conduction part; the conduction part is connected between the operation actuator and the switching part and is arranged to be a nested multi-cavity tube; according to the electric incision knife device, manual control of a doctor is replaced with electric control, the movement of the incision knife is more flexible, the range is wider, and the surgical operation precision and operation efficiency are improved.

A robotic catheter system including a first drive mechanism configured to interact with an elongated medical device to cause the elongated medical device to move along its longitudinal axis. A controller provides a signal to a motor to move the first wiping surface toward the longitudinal axis when the elongated device is being withdrawn from a patient.

The invention relates to a plasma probe with improved ignition behavior. The plasma probe (10) of the invention comprises a fluid line (14) which is preferably configured as a hose and an electrode (17) arranged therein, the tip (20) of the electrode (17) being located near the outlet opening (16). The electrode (17) comprises a surface section (21) of a hydrophobic configuration. Alternatively, additional elements of the plasma probe (10), in particular near the outlet opening (16), can be provided with a hydrophobic surface. Due to the persistence of the discharge base point obtained, such a probe comprises a significantly improved ignition readiness and an improved stability.

A surgical instrument includes an end effector transitionable between deactivation and activation, the end effector configured to transmit energy to tissue, and a proximal body attached to the end effector. The proximal body includes an electrical component that can assist the end effector, a first shield, and a second shield that can be coupled with the first shield to cooperatively define a hollow interior that houses the electrical component. The proximal body also includes a first restriction feature and a second restriction feature associated with the first shield and the second shield, respectively. The first restriction feature and the second restriction feature may be coupled together to cooperatively align the first shroud and the second shroud. The first restraining feature and the second restraining feature are selectively disengageable to allow the first shroud and the second shroud to be discoupled from each other and to expose the electrical component within the hollow interior.

A surgical instrument with insulating grips is described. The grips can include internal metal frames that are arranged to limit electrical conductivity within the grips and to other components that attach to a grip, such as a ratchet. The internal metal frames can be constructed of multiple internal portions, spatially separated from one another to interrupt electrical conductivity between the internal portions, but coated with an insulating overmold to provide mechanical coupling between the portions. An internal metal frame can also include a notch, cut-out, or other region partially surrounded by the structure of the internal metal frame, which can be coated with an insulating overmold to define a region of the grip that does not have an internal metal frame therein but which can include an attachment point for mechanically coupling other components while limiting electrical coupling between the metal frame and the other components.

The present invention relates to the field of medical devices, and in particular to a minimally invasive radiofrequency ablation puncture stand for peripheral nerves of a knee joint, comprising a guide needle column and a guide needle sleeve penetrating and embedded in the end of the guide needle column, the lower end of the guide needle column is symmetrically connected with two tube shafts, the ends of the two tube shafts are coaxially fitted with a bearing plate, the bearing plate is connected to the tube shaft, the two bearing plates are symmetrically arranged, the guide needle sleeve corresponds to between the two bearing plates, an iodine storage tank is arranged above the guide needle column, the iodine storage tank is connected to the tube shaft, a plurality of bearing grooves are provided in an annular array on the outer surface of the bearing plate, the inside of the bearing groove is tightly plugged with disinfection cotton, and an adjusting member is installed at the rear end of the guide needle column. The present invention improves the convenience of use and meets the need for disinfection of the puncture needle at the same time.

A surgical instrument includes an end effector and a controller. The end effector includes a first jaw, a second jaw, and an electrode associated with the first jaw. The first jaw and the second jaw can move between an open position and a clamped position in order to grasp tissue. Further, the electrode emits a therapeutic energy cycle to seal the grasped tissue. The controller can measure an impedance parameter associated with the end effector and compare the measured impedance parameter with an upper predetermined threshold. Further the controller can generate a cleaning instruction or alter an energy delivery algorithm of the RF therapeutic energy cycle if the measured impedance parameter is greater than the upper predetermined threshold.