Other

Stryker Corporation

Telectronics Pacing Systems, Inc.

International Medical, Inc.

Daniel E Cooper

Brian Fouts

Dean J MacCarter

Reid S Cover

Michael D Baycura

Donald E Dick

Ronald E Hileman

Charles M Patnoi

Robert D Zellers

Roger Hassell

Don Hopper

An arrangement for surgery including a hub and a cannula assembly connected thereto. The cannula assembly defines a first fully enclosed chamber extending substantially along a length of the cannula assembly, with the first fully enclosed chamber being coextensive with a head central passage of the hub such that a first tool is configured to extend through the hub and the first fully enclosed chamber. The cannula assembly defining a second fully enclosed chamber that extends along only a portion of the length of the cannula assembly and spaced from the hub. The second fully enclosed chamber having an entrance and an exit being spaced from the hub for allowing a second surgical tool to extend through the second fully enclosed chamber without also passing through the hub or the first fully enclosed chamber. The first fully enclosed chamber and the second fully enclosed chamber being substantially parallel.

Cannula arrangement for minimally invasive surgery

An access and positioning arrangement for use during an endoscopic surgical procedure in which a pair of surgical tools are utilized, such as an endoscopic imaging device for providing an image of the surgical site and a surgical instrument for manipulating tissue at the surgical site. The arrangement includes a housing for positioning over a surgical portal defined in the patient through which the surgical site is accessed, which housing defines first and second channels which receive the respective surgical tools so that the tools can be maintained in a fixed orientation relative to one another within the surgical site and so that the tools can be readily positioned in the correct positions relative to one another at the surgical site.

Arrangement for minimal access surgery

A blind for concealing an individual includes an annular support, a curtain, a first securing means, and a second securing means. The curtain is suspended from the support for surrounding the individual. The first securing means secures a rear of the support to an upright object, and the second securing means secures a front of the support to the upright object at a height higher than the first securing means such that the support is suspended from the upright object in a generally horizontal position.

Blind

Method and apparatus are described for a soft tissue fixation device for being biased between a soft tissue graft and an interference screw in a bone tunnel. The device has a contoured body portion having an inner surface and an outer surface. A plurality of spikes protrude from the outer surface of the body portion, the spikes extending perpendicular to the longitudinal axis of the body portion and parallel to each other. The distal ends of the spikes define a flat plane. A pin axially extends from the body portion for receiving a portion of the graft.

Soft tissue fixation device

A rate responsive pacemaker senses an instantaneous metabolic indicative parameter such as minute volume and monitors this parameter over an extended time period of 30 days. A corresponding cumulative rate control parameter is generated. The cumulative rate parameter is converted into a metabolic pulsing rate for generating pulses in accordance with a set of physical activity parameters.

Rate-responsive pacemaker with automatic rate response factor selection

An electronic pacemaker generating pacing signals includes both a metabolic rate responsive sensor monitoring a physiological parameter and an activity rate responsive sensor monitoring movement of a patient's body during exercise. The measurements from each of the sensors are used to develop a corresponding rate signal and the two signals are combined to generate a dual sensor rate used to determine the timing of the pacing signals. The physiological parameter may be for example minute volume variation while the body movement may be monitored for example by using an accelerometer. The activity rate responsive sensor output is preferably used as an indication of a transition of a level of exercise, when a faster change in the pacing rate is desirable.

Dual sensor rate responsive pacemaker

A rate responsive pacemaker measures a metabolic demand parameter of a patient. The metabolic demand parameter is converted to a corresponding metabolic indicated rate which determines the pulse rate of the pacer. The converting is based on a profile dependent on the predicted anaerobic threshold level of the patient, as well as his or her age and physical fitness.

Rate-responsive pacemaker with anaerobic threshold adaptation and method

A method and apparatus for processing and displaying ECG waveforms and the like is comprised of a playback circuit to demodulate FM and digital signals for transcription on an endless paper loop in a series of straight lines or traces. A paper loop drive unit is capable of handling and advancing the endless loop continuously past one or more scribing pens which are offset in succession to produce a predetermined number of traces in parallel rows across the length of the loop with time segment markings closely correlated with the information recorded.

Method and apparatus for processing and displaying data in compressed

A scan converter storage surface is divided into image spaces corresponding to different points in the heart cycle. Ultrasound echoes from heart structures are plotted in the image spaces by means of special x, y sweeps which are offset to the image spaces by timing circuitry. Separate delay and spacing counters allow the first image to be stored at one interval after detection of the ECG R-wave and successive images to be stored at a another uniform interval. An ECG trace is stored in the first image space with cursors indicating the selected image timing. The scan converter is read out to a TV display. During image build-up, the read and write modes alternate. If desired, the TV sweeps to the scan converter may be attenuated and offset to display a single stored image. Images displayed in sequence provide animation. A self test circuit substitutes a fake ECG and writes bars in the scan converter image spaces using TV sweeps for the scan sweeps. The timing circuitry for the normal images gates the video for the bars. All of the timing for the system is derived from a TV composite sync signal and the patient's ECG current.

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Dallas, TX, United States of America

Daniel E Cooper