Rca Inc.

Other

Bioteque America, Inc.

Denteque

Denis P Dorsey

William E Rodda

James D Dorsey

Dalton H Pritchard

Walter E Sepp

Chen-Cheng Kuo

Shih-Mei Wu

Randall G Cohen

Peter D Martelly

An apparatus for dispensing a dental solution is disclosed and includes a dispensing nozzle adapted for attachment to a syringe. The dispensing nozzle has a curved applicator tip with a securely mounted brush that extends beyond the applicator tip to aid in placement of the dental solution. A retainer hub is positioned in the dispensing nozzle to prevent the brush from retracting into or being expelled from the dispensing nozzle during use.

Apparatus for dispensing dental solutions

A pessary for vaginal use that prevents rotation after insertion is disclosed. An oval shape prevents rotation of the pessary once installed and a novel unitary molded structure with different hardnesses of biocompatible material eliminates the use of wire inserts that can become exposed and injure the user while facilitating folding of the pessary during insertion and removal. Further embodiments add an inner membrane to aid in controlling uterine prolapse and a novel raised portion or porch to support the urethra and control incontinence.

Pessary

A pessary for treating uterine prolapse and/or stress urinary incontinence. A first embodiment of the pessary basically comprises a base ring, a sling support, and a sling membrane wall secured together to form an integral unit. The unit is formed of a biocompatible, flexible material, e.g., medical grade silicone, so that it can be collapsed or folded. The base ring is annular member defining a plane. The sling support is an arcuate portion of a ring having a pair of ends secured to the base ring so that the sling support is oriented in a plane extending at an acute angle, e.g., 33 degrees, to the plane of the base ring. The sling membrane is supported between a portion of the base member and a portion of the sling support to forms an arcuate wall of the periphery of the pessary. When the pessary is in place the sling wall presses against the inter-vaginal wall, thereby gently closing the urethra. At the same time the ring base member provides support for the uterus, preventing further migration or prolapse. A second embodiment of the pessary is identical to the first embodiment but includes an additional membrane or wall to provide additional support useful for treating greater degrees of uterine prolapse than the first embodiment.

A medical locking device securely fits onto finger grips of a syringe. The locking device is axially aligned with the syringe along a defined longitudinal axis wherein the syringe receives a plunger. The locking device includes a centrally positioned aperture which receives the shaft of the plunger. A retaining member is positioned around the aperture and receives the finger grips of the syringe by engaging at least three sides of the finger grips. This eliminates shifting of the medical locking device and there are opposed cutting members which are chordally positioned in the aperture. The cutting members taper as fine cutting edges for wedging into the plunger during execution of a locking position. To utilize the device, the user twists the plunger into a locking position so that the cutting members wedge into the plunger. This locking position eliminates and prevents any further plunger movement in either direction along the longitudinal axis.

Medical locking device

A medical device for removing tissue from a body cavity includes a tubular shaped handle securely connected and in communication with an elongated hollow tubular probe. The probe includes a spherical tip and an open area with a notch. The open area includes a cutting edge for removing tissue. The handle has a visual and tactile indicator in the general shape of a raised arrow. The raised indicator is axially aligned with open area of the probe. Accordingly, the user can feel or see the raised indicator and know the exact orientation of the open area when the cutting edge of the device is in the body cavity.

Tissue sampling device with visual and tactile indicator

A radio frequency signal coupler includes first and second conductors formed on an insulating body for coupling signals between respective input and output couplings. A series resonant circuit is formed on the insulating body between the first and second conductors for shunt attenuating interfering signals. The series resonant circuit includes a capacitance part that also functions as a protective spark gap.

Radio frequency signal coupler

A helical resonator comprises an insulating body portion having therein a cavity. In one embodiment, a helical conductor is formed on the inside wall of the cavity and another conductor is formed on the outside of the insulating body. In another embodiment, the helical conductor is formed on the outside of the insulating body and the other conductor is formed on the outside wall of the cavity. In a preferred embodiment, the disclosed helical resonator is formed as an integral part of the body of a signal coupler for coupling an antenna to a tuner and electrically forms a series tuned trap connected between conductors of the signal coupler.

Helical resonator

In a video signal processor for a progressive scanning system, an interlaced composite video signal, repeating at an f.sub.H line rate of approximately 16 KHz, is coupled to a comb filter. Separated luminance and chrominance signals are developed at respective output terminals of the comb filter. The chrominance signal is demodulated to develop color mixture signals. The luminance and color mixture signals are applied to a color matrix for generating a first set of R, G, B color signals, with each signal repeating at the f.sub.H line rate. A time compression circuit is coupled to the output of the color matrix for time compressing the R, G, B color signals to generate a comparable set of three time compressed and processed color signals, with each time compressed signal repeating at a double line rate of 2f.sub.H. The video signal processor is also capable of converting f.sub.H line rate, interlaced R, G, B signals, obtained from an external video source, into double line rate, non-interlaced signals. A switching arrangement is coupled to the color matrix, the external source and the time compression circuit to selectively apply to the time compression circuit, either the R, G, B signals derived from the source of the composite video signal or those directly obtained from the external source.

Video signal processor for progressive scanning

Circuit to apply an offset voltage to be added to a charge storage signal depositing a charge on a radially swept charge storage surface so that the charge storage signal is a minimum at the center of the surface and a maximum at the outer edges of the sweep. This reduces or eliminates the charge integration in the area where the sweep lines converge.

Circuit for elimination of surface charge integration

A video frequency amplifier is biased to provide output signals of a first magnitude. In response to the application of a predetermined control signal, the bias is altered so that output signals are provided of a second, different magnitude. When employed in communications systems of the type in which television images are 'frozen' by a storage tube for subsequent transmission on an individual frame basis by a voice-quality telephone link, for example, and subsequently re-created, the control signal indicates whether the system and its storage tube are to operate either in the 'transmit' or 'receive' mode.

Growing community of inventors

Levittown, PA, United States of America

Denis P Dorsey