Patent
Contraction status assessment
TLDR
In this paper, a parameter processor calculates a contraction status parameter value based on the at least one sensor signal, which represents an elongation of the ventricle following onset of ventricular activation during a cardiac cycle.Abstract:
An implantable medical device receives at least one sensor signal representing inter-movement between a basal region of a heart ventricle and a ventricle apex during at least a portion of a systolic phase of a cardiac cycle. A parameter processor calculates a contraction status parameter value based on the at least one sensor signal. This contraction status parameter value represents an elongation of the ventricle following onset of ventricular activation during a cardiac cycle. The contraction status parameter value is stored in a memory as a diagnostic parameter representing a current contraction status of a subject's heart.read more
Citations
More filters
Patent
Systems for adjusting end effector parameters based on perioperative information
TL;DR: In this article, a surgical system includes a surgical instrument, an end-effector, a control circuit, and a sensor configured to transmit a sensor signal indicative of a closure parameter of the end effector.
Patent
Controlling a surgical instrument according to sensed closure parameters
TL;DR: In this article, a control circuit is configured to determine a value of the tissue compression parameter via the sensor as the jaws transition from the open configuration to the closed configuration, which causes the motor to increase a time to transition the jaws to a closed configuration according to whether the value of tissue compression parameters is above a first threshold, and provide feedback when the value is below a second threshold.
Patent
Surgical instruments comprising a biased shifting mechanism
TL;DR: In this paper, a shiftable transmission for a surgical instrument comprising of a shift-able transmission is described, which comprises a mechanism for assuring that the transmission is in one of a plurality of predefined configurations.
Patent
Surgical instrument systems comprising feedback mechanisms
TL;DR: In this article, a handle assembly consisting of an actuation trigger and a curved cylinder surrounding it is described, and the curved cylinder comprises an electroactive polymer, which is responsive to the actuation force and provides feedback to a user.
Patent
Surgical clip applier configured to store clips in a stored state
Michael J. Stokes,Frederick E. Shelton,Chester O. Baxter,Jason L. Harris,John E. Brady,Matthew T. Kuhn,Jeffery D. Bruns,Alexander R. Cuti,Andrew C. Deck +8 more
TL;DR: Surgical clip appliers are disclosed comprising a plurality of clips which are stored in a compressed state as mentioned in this paper, when a stored clip is moved into the crimping chamber of the surgical clip applier, the clip can assume a configuration which is different than its stored configuration before it is crimped.
References
More filters
Patent
Methods and systems for measuring cardiac parameters
Mark Zdeblick,Joseph M. Ruggio +1 more
TL;DR: In this article, the authors present methods and systems for measurement of various cardiac parameters, which generally involve causing a change in volume and/or pressure in a heart chamber, measuring the change, and calculating at least one cardiac parameter based on the change.
Patent
Pacing methods and devices using feedback controlled timing
TL;DR: In this paper, a first stimulation signal is applied to a first region of a heart of the patient at a first time and a second stimulation signal applied to another region of the heart at a second time to provide biventricular synchronization stimulation.