摘要:
A vascular closure device (100), comprising: two arms (2,3) each having a distal end, a proximal end (13,16) and in between a coupling portion (12, 15) where the coupling portion (12, 15) is near proximal end (13,16); the coupling portions (12, 15) of both the two arms (2,3) are connected through a pivotal pin (18) to form a pivot point (18A); a spring (50) to exert pressure on distal ends of the two arms (2,3) to keep them in clamped position; and the proximal ends (13,16) of the two arms (2,3) which, when pressed towards each other, cause movement in the distal ends of the two arms (2,3) from the clamped position to unclamped position.
摘要:
Various systems and methods for determining the state of an ultrasonic electromechanical system are disclosed. A control circuit can be configured to monitor the change in resonant frequency of an ultrasonic electromechanical system of the ultrasonic surgical instrument as the ultrasonic blade oscillates and determine the state or change in state of the ultrasonic electromechanical system accordingly. The change in state of the ultrasonic electromechanical system can include, for example, the change in temperature of the system. In some aspects, the control circuit can be configured to modify the operation of the ultrasonic electromechanical system or other operational parameters of the ultrasonic surgical instrument according to the state or change in state of the system.
摘要:
A surgical instrument includes an end effector having a first jaw, a second jaw movable relative to the first jaw to grasp tissue therebetween, an anvil, a staple cartridge comprising staples deployable into the tissue, wherein the staples are deformable by the anvil, and a sensor configured to provide a sensor signal according to a physiological parameter of the tissue. The surgical instrument further includes a control circuit coupled to the sensor, wherein the control circuit is configured to receive the sensor signal, and assess proximity of the sensor to cancerous tissue based on the sensor signal.
摘要:
An end effector for use with a surgical instrument. The end effector includes first and second jaws that are pivotally interconnected and moved between open and closed positions by a firing member. One or both of the jaws are configured with jaw stiffener features that are adapted to permit a user to monitor movement of the firing member during use.
摘要:
An end effector for use with a surgical instrument. The end effector includes first and second jaws that are pivotally coupled to each other for pivotal travel about a pivot axis between open and closed positions by a dynamic clamping assembly that is selectively movable between a starting position and an ending position relative to the first and second jaws. At least a portion of the dynamic clamping assembly extends proximally beyond the pivot axis when in the starting position to facilitate improved jaw apertures.
摘要:
A skin treatment device comprising a skin polishing head to remove skin from a treatment area, a collection bin disposed within the housing and positioned to collect the skin removed by skin polishing head, a conduit disposed adjacent to the skin polishing head and the housing, the conduit being in fluid communication with the collection bin, and a drive mechanism coupled to the skin polishing head, rotation of the drive mechanism simultaneously driving the skin polishing head and creating suction to urge skin removed by the skin polishing head through the conduit and into the collection bin.
摘要:
A needle placement assistance device (10) for assisting in venipuncture or arterial line placement includes a stereo camera (14) configured to acquire stereo images of a target portion of a patient. A needle tracker (16) is configured to track a current position of an associated needle (12). The device also includes at least one electronic processor (20); and a non- transitory storage medium (26) storing data related to one or more of target needle depth, target needle angle, and target needle speed, and instructions readable and executable by the at least one electronic processor to perform a needle placement assistance method (100). The method includes: performing machine vision processing of the stereo images to generate a three- dimensional (3D) map (32) of the target portion; detect a blood vessel in the 3D map of the target portion; determining a target needle position relative to the blood vessel detected by the machine vision processing based on the data related to one or more of target depth, target angle, and target speed; and identifying corrective action to align a current position of the needle with the target needle position.
摘要:
An electrosurgical waveform (500) is to be provided having both radiofrequency (RF) energy and microwave energy components arranged to perform efficient haemostasis in biological tissue. The waveform comprises a first portion (506) primarily of RF electromagnetic energy and a second portion (508) primarily of microwave electromagnetic energy that follows the first portion. The second portion further comprises a plurality of RF pulses (510), wherein the first portion is to transition to the second portion when either a duration (512) of the first portion meets or exceeds a predetermined duration threshold or an impedance determined during the first portion meets or exceeds a predetermined threshold.
摘要:
A surgical system used to determine the presence of a vessel within a region (102) proximate to a working end (104) of a surgical instrument (106) includes at least one light emitter (110) disposed at the working end (104) of the surgical instrument (106), and at least one light sensor (112) disposed at the working end (104) of the surgical instrument (106) and configured to receive light emitted from the at least one light emitter (110) and reflected from the region (102), the at least one light sensor (112) adapted to generate a signal comprising a first pulsatile component and a second non-pulsatile component. The system also includes a controller (114) coupled to the at least one light sensor (112), the controller (114) comprising a splitter (116) to separate the first pulsatile component from the second non-pulsatile component and an analyzer (118) to determine the presence of the vessel within the region (102) proximate to the working end (104) of the surgical instrument (106) based on the first pulsatile component.