Abstract: A dental syringe and disposable capsule for use therewith wherein the disposable capsule includes a body portion formed with a laterally extending collar having a groove therein connected to one end and having a discharge nozzle connected at the other end of the capsule body portion. A displaceable plug seals the material within the cartridge. The syringe includes a plastic barrel having a bore extending therethrough for receiving a reciprocating plunger slidably supported therein. Connected to the barrel adjacent one end is a handle extending normal thereto with a lever pivotally connected relative thereto for engaging the end of the plunger for effecting the displacement of the plunger when the lever is actuated. Connected to the front end of the plastic barrel is a cartridge holder formed as a metal part having a rear portion and a forwardly extending seat portion. The rear portion is embedded into the material of the plastic barrel with the seat portion extending forwardly of the front end of the barrel.

Abstract: A dental cartridge for dispensing a dental material having a body portion made of a material transparent to at least a portion of the visible light spectrum and opaque to the actinic light of the dental material contained therein. Also, a dental cartridge having a body portion formed from a toroidal segment and a coaxial nozzle attached thereto. The dental cartridges are used in a dental syringe for application of the dental material to a patient. Several embodiments provide various discharge end configurations, including hemispherical, conical frustum, and flat. Additionally, dosing indicia are placed on the body portion of the dental cartridge, permitting the dentist to fill the dental cartridge with a predetermined volume of dental material. A specially configured piston having an appendage thereon is used in combination with the dental cartridge for extruding substantially all of the costly dental material therein.

Abstract: A dental tray for counting, storing, shipping and dispensing cartridges that includes a plurality of integrally formed wells for securely holding and sealing a dental cartridge which are placed horizontally within the wells in a manner whereby the discharge nozzle of the cartridge is positioned so that it abuts a portion of the well for sealing it from contamination and which the tray may be formed of opaque or color material which will block curing rays when light activated material is placed within the dental cartridges. Each cartridge is individually retained within its respective well by a snap or friction fit. A sliding or rotating cover is provided which is spaced slightly above the cartridges so as to prevent unintentional dislodgement of the cartridge from its well or seat.

Abstract: A dental capsule for mixing a cement powder with an activating liquid having a frangible seal. The frangible seal is placed between a nozzle and the body portion of a capsule preventing unmixed cement from entering the nozzle. The nozzle has a circumferential groove facilitating positioning thereof. A vent formed in the body of the capsule prevents premature rupturing of the frangible seal upon insertion of the plug. A second and third embodiment use a two-part plug for dispensing activating liquid to the cement powder contained within the body of the capsule.

Abstract: A dental cartridge for dispensing a dental material having a body portion made of a material transparent to at least a portion of the visible light spectrum and opaque to the actinic light of the dental material contained therein. Also, a dental cartridge having a body portion formed from a toroidal segment and a coaxial nozzle attached thereto. The dental cartridges arae used in a dental syringe for application of the dental material to a patient. Several embodiments provide various discharge end configurations, including hemispherical, conical frustum, and flat. Additionally, dosing indicia are placed on the body portion of the dental cartridge, permitting the dentist to fill the dental cartridge with a predetermined volume of dental material. A specially configured piston having an appendage thereon is used in combination with the dental cartridge for extruding substantially all of the costly dental material therein.

Abstract: A disposable dental brush for applying various dental materials onto a tooth in thin even, coatings, e.g. etchants, sealants, bonding agents, tints, opaquers, varnishes and the like that includes an elongated straight handle having a tuft of bristles connected to one end thereof. The elongated handle is constructed so as to allow the portion thereof adjacent to the brush end to be readily bent so as to angularly dispose the brush end relative to the longitudinal axis of the handle. The arrangement is such that the brush can be used either as a straight brush or an angularly bent brush to reach difficult areas of the mouth or teeth. Also, the brush is made of inexpensive plastic material so as to render it readily expendable or disposable after each use.

Abstract: This disclosure is directed to a dental syringe having a capsule holder and a plunger for accurately and precisely placing a viscous or low viscosity composite resin dental restorative material from a capsule directly into a tooth. The improvement resides in a plunger having an ejector tip which is maintained under a positive bias that is intended to retract when a resistance exceeding a predetermined amount is met during an ejecting procedure so as to prevent any build-up of pressure within the capsule containing the material to be dispensed that may tend to distort or rupture the capsule. In the case of a low viscosity resin, the plunger having an ejector tip maintained under a positive bias that is intended to retract when the speed of ejection exceeds that of a predetermined rate, so as to prevent sudden and excessive extrusion of material from the capsule.

Abstract: A manual extruder or syringe having a longitudinal slot therein adjacent the full circumference front end for receiving the nozzle of a cartridge. A barrel of a syringe having a front end and a breach opening adjacent thereto for receiving a cartridge of the type having an angularly disposed nozzle and rear flange. The slot in the front end is only wide enough to receive the width of the nozzle and prevents the body portion of the cartridge from passing therethrough. The body portion can then easily be slid along the barrel into the front end to be held by the flange against a substantially full circumference shoulder. The front end can be made very rigid, and the shoulder extending substantially the full circumference of the front end securely holds the cartridge preventing any possibility of unintentional separation from the syringe. In one embodiment, a notch is also provided to permit the cartridge to be inserted with the nozzle pointing upward.

Abstract: A dental cartridge for dispensing a dental material having a body portion made of a material transparent to at least a portion of the visible light spectrum and opaque to the actinic light of the dental material contained therein. Also, a dental cartridge having a body portion formed from a toroidal segment and a coaxial nozzle attached thereto. The dental cartridges are used in a dental syringe for application of the dental material to a patient. Several embodiments provide various discharge end configurations, including hemispherical, conical frustum, and flat. Additionally, dosing indicia are placed on the body portion of the dental cartridge, permitting the dentist to fill the dental cartridge with a predetermined volume of dental material. A specially configured piston having an appendage thereon is used in combination with the dental cartridge for extruding substantially all of the costly dental material therein.

Abstract: A dental tray having depressions therein for holding a bottle of dental material upside down and having wells of distinctive shape and configuration. An inexpensive disposable tray is disclosed for use in preparing single or multiple component bonding liquids and sealants. Multiple depressions configured to hold a bottle having a cap with a shoulder upside down are formed within the tray so the dentist can readily dispense the single or multiple component bonding liquids and sealants. Distinctively shaped wells are positioned in line with the depressions holding the bottle upside down preventing confusion between the multi-part dispensed bonding liquids and sealants. A finger indentation in the side opposite the depressions is provided to facilitate holding the lightweight tray during mixing or use, as well as to further provide a divided fuel to the tray preventing confusion between the dispensed component parts of the multiple component bonding liquids and sealants.

Abstract: A dental syringe and disposable capsule for dispensing a dental material wherein the capsule includes a reservoir portion containing a predetermined amount of material to be dispensed, and which reservoir is connected in communication with a discharge tip. Connected to the end of the tip and projecting therethrough is a needle cannula through which the material is ejected. A displaceable piston, which seals the material within the reservoir portion, is provided to force the material through the cannula when displaced within the reservoir portion. The arrangement is such that the cannula connection within the tip end permits the cannula to be rotatably mounted relative to the tip while maintaining a seal between the tip and the cannula.

Abstract: A disposable dental brush for applying various dental materials onto a tooth in thin, even coatings, e.g. etchants, sealants, bonding agents, tints, opaquers, varnishes and the like that includes an elongated straight handle having a tuft of bristles connected to one end thereof. The elongated handle is constructed so as to allow the portion thereof adjacent to the brush end relative to the longitudinal axis of to be readily bent so as to angularly dispose the brush end the handle. The arrangement is such that the brush can be used either as a straight brush or an angularly bent brush to reach difficult areas of the mouth or teeth. Also, the brush is made of inexpensive plastic material so as to render it readily expendible or disposable after each use.

Abstract: A vascular dilating device for performing a coronary angioplasty procedure that includes a tubular barrel defining a reservoir for containing a supply of actuating fluid and having a plunger and connected piston reciprocially disposed within the reservoir. The outlet of the reservoir is connected to a valve assembly having an outlet to which a balloon catheter is connected. The valve assembly includes a control valve and a unidirectional valve which are co-operatively associated for directing fluid from the reservoir to the balloon catheter in one direction only when the control valve is disposed in a balloon inflating position and the handle is actuated to advance the plunger. A by-pass is also provided in the valve assembly to reverse the fluid flow from the balloon catheter to the reservoir when the control valve is disposed in a second or balloon deflating position.