A surgical instrument for coupling to a robotic surgical assembly configured to transfer rotational forces to the surgical instrument is provided. The surgical instrument includes an elongated shaft, an end effector coupled to a distal end of the elongated shaft, and a drive assembly operatively coupled to the end effector. The drive assembly includes one or more cables connected to the end effector. Movement of the one or more cables actuates a movement of the end effector. The one or more cables may be coated with parylene.

The present invention relates to a gynecological device (1) comprising a body part (2) having a vacuum chamber (3), a rod unit (4) with a distal end, a proximal end, and a channel (41) extending between the distal end and the proximal end, a cervix head (5) arranged at the distal end of the rod unit (4), and a sealing mechanism (6) configured to switch between an ambient state and a vacuum state. The rod unit (4) extends to the vacuum chamber (3) of the body part (2) such that the proximal end of the rod unit (4) is located in the vacuum chamber (3) of the body part (2). The cervix head (5) is configured to engage a section of a cervix from a vaginal side. When in the ambient state of the sealing mechanism (6), the vacuum chamber (3) of the body part (2) is sealed and the channel (41) of the rod unit (4) is open to an exterior (7) of the gynecological device (1). In the vacuum state of the sealing mechanism (6), the channel (41) of the rod unit (4) is open to the vacuum chamber (3) of the body part (2) and sealed to the exterior (7) of the gynecological device (1).

In some examples, an aspiration system a catheter and a fluid flow sensor. The fluid flow sensor includes a fluid inlet, a fluid outlet, and a flow oscillator. The fluid inlet is configured to receive fluid from the catheter. The flow oscillator configured to oscillate flow of the fluid through the fluid flow sensor to generate flow-induced vibrations. The fluid outlet is configured to discharge the fluid.

A system includes a medical device and a charging device. A sterile barrier may be interposed between the medical device and the charging device. The medical device includes an integral power source and an active element. The charging device is configured to charge the integral power source. The charging device may charge the integral power source through direct contact between features of the charging device and features the medical device. The charging device may alternatively charge the integral power source wirelessly, such as through inductive coupling. The medical device may include conductive prongs that are retained by the charging device. The charging device may physically couple with the medical device via magnets. The medical device and the charging device may be provided together in a sterile package as a kit. The kit may also include a reclamation bag to facilitate reclamation of electrical components.

A sterile interface module for coupling an electromechanical robotic surgical instrument to a robotic surgical assembly is provided. The surgical instrument includes an end effector and is configured to be actuated by the robotic surgical assembly. The sterile interface module includes a body member and a drive assembly. The body member is configured to selectively couple the surgical instrument to the robotic surgical assembly. The body member is formed of a dielectric material. The drive assembly is supported within the body member and is configured to transmit rotational forces from the robotic surgical assembly to the surgical instrument to actuate the surgical instrument to enable the surgical instrument to perform a function.

An ultrasonic device may include an electromechanical ultrasonic system defined by a predetermined resonant frequency, the electromechanical ultrasonic system further including an ultrasonic transducer coupled to an ultrasonic blade. A method of delivering energy to the ultrasonic device may include measuring a complex impedance of the ultrasonic blade coupled to the ultrasonic transducer, comparing the measured complex impedance to stored values of complex impedance patterns associated with ultrasonic blade functions, and applying, an algorithm to control a power output to the ultrasonic transducer based on the comparison. The method may further include delivering energy to the ultrasonic device based on a state or condition of an end effector, in which the state or condition of the end effector corresponds to a state of only sealing a tissue or of spot coagulating the tissue.

A sheathed blade assembly for minimizing or preventing contact between the moving interior blade and the exterior sheath. The assembly includes an exterior sheath having a first portion and second portion with an inner lumen therebetween, an interior blade movable within the inner lumen of the exterior sheath, a first pocket within a first surface of the interior blade, and a first ball bearing within the first pocket. The first ball bearing creates a clearance amount between the first surface of the interior blade and the first portion of the exterior sheath. The assembly may also include a second pocket within a second surface of the interior blade for a second ball bearing. The second ball bearing creates a clearance amount between the second surface of the interior blade and the second portion of the exterior sheath. The second pocket is in a staggered configuration relative to the first pocket.

A generator, ultrasonic device, and method for controlling a temperature of an ultrasonic blade are disclosed. A control circuit coupled to a memory determines an actual resonant frequency of an ultrasonic electromechanical system comprising an ultrasonic transducer coupled to an ultrasonic blade by an ultrasonic waveguide. The actual resonant frequency is correlated to an actual temperature of the ultrasonic blade. The control circuit retrieves from the memory a reference resonant frequency of the ultrasonic electromechanical system. The reference resonant frequency is correlated to a reference temperature of the ultrasonic blade. The control circuit then infers the temperature of the ultrasonic blade based on the difference between the actual resonant frequency and the reference resonant frequency. The control circuit controls the temperature of the ultrasonic blade based on the inferred temperature

Various aspects of a generator, ultrasonic device, and method for estimating and controlling a state of an end effector of an ultrasonic device are disclosed. The ultrasonic device includes an electromechanical ultrasonic system defined by a predetermined resonant frequency, including an ultrasonic transducer coupled to an ultrasonic blade. A control circuit measures a complex impedance of an ultrasonic transducer, wherein the complex impedance is defined as $Z_g\left(t\right)=\frac{V_g\left(t\right)}{I_g\left(t\right)}.$
The control circuit receives a complex impedance measurement data point and compares the complex impedance measurement data point to a data point in a reference complex impedance characteristic pattern. The control circuit then classifies the complex impedance measurement data point based on a result of the comparison analysis and assigns a state or condition of the end effector based on the result of the comparison analysis. The control circuit estimates the state of the end effector of the ultrasonic device and controls the state of the end effector of the ultrasonic device based on the estimated state.

A generator, ultrasonic device, and method for controlling a temperature of an ultrasonic blade are disclosed. A control circuit coupled to a memory determines an actual resonant frequency of an ultrasonic electromechanical system comprising an ultrasonic transducer coupled to an ultrasonic blade by an ultrasonic waveguide. The actual resonant frequency is correlated to an actual temperature of the ultrasonic blade. The control circuit retrieves from the memory a reference resonant frequency of the ultrasonic electromechanical system. The reference resonant frequency is correlated to a reference temperature of the ultrasonic blade. The control circuit then infers the temperature of the ultrasonic blade based on the difference between the actual resonant frequency and the reference resonant frequency. The control circuit controls the temperature of the ultrasonic blade based on the inferred temperature