Abstract: A needle-less device for the parenteral administration of a medicament is disclosed. The medicament has the shape of one end of a toothpick. It is placed in the bore of a barrel with the barrel having the shape of a nosecone at one end. A plunger is inserted into the other end of the bore. The plunger forces the medicament through the skin and into the subcutaneous layer of the patient without the need for penetration of the skin by a needle.

Abstract: A fluid applicator 10 used to prepare a surgical site on a patient's skin is disclosed, which irrigates a surgical site and simultaneously collects excess irrigation fluids from the surgical site and returns the collected fluids to a fluid reservoir. Applicator 10 includes a disposable fluid reservoir 10 and a reusable motor assembly 50. Fluid reservoir 20 includes a sponge 48. Motor assembly 50 includes a motor 70 and a reciprocating diaphragm 80. Motor assembly 50 is connected to the open end of fluid reservoir 20 to enclose and seal a quantity of prep solution inside the fluid reservoir. Motor 70 reciprocates diaphragm 80 back and forth within fluid reservoir 20. The forward stroke of diaphragm 80 causes a positive pressure inside fluid reservoir 20, which displaces the irrigation fluid through a one way valve 30 and a spray nozzle 34 onto the surgical site. Excess irrigation fluid is absorbed by sponge 48 as applicator 10 is moved over the surgical site.

Abstract: A disposable barrel dental impression syringe having a rotatable malleable needle cannula. A disposable barrel is fitted with a malleable needle cannula that is seated to permit easy rotation thereof. A handle is threaded onto the open end of the barrel. A plunger is fitted through the handle and barrel forming a syringe for the extrusion of dental impression material. The needle cannula is positioned within the discharge end of the barrel in such a way to permit easy rotation, yet prevent pushing or pulling the needle cannula through the discharge end of the barrel. This permits exact positioning of the needle cannula for placement of dental impression material. Additionally, only the barrel portion of the syringe being disposable, the precision and feel of a high quality impression syringe is maintained.

Abstract: A syringe device having a barrel enclosing a first chamber therein containing coaxially aligned primary and secondary plungers. A connectable mixing and delivery tip encloses a second chamber therein and is connected to the barrel by a coupling. A slidable valve having an aperture therethrough to allow passage of air into and out of the secondchamber is disposed between the two chambers. The primary plunger is slidable out one end of the syringe for the selective application of pressure into the syringe barrel. As the primary plunger is urged down into the syringe barrel, air is forced around the secondary plunger and through the valve aperture into the second chamber wherein the substances contained therein are mixed by turbulent aeration. Continued application of pressure on the primary plunger drives the secondary plunger into the slidable valve to plug the aperture in the valve thereby ceasing the agitation of the contents in the second chamber.

Abstract: An apparatus for applying coatings to various surface types. The apparatus includes a dispenser for holding a quantity of the coating material and a delivery tip having adjustable bristles at one end. The bristles are slidably secured in a spiral passageway formed by a helical ridge inside the delivery tip, thereby allowing the coating material to be continuously applied without the need to stop the procedure and rewet the applicator. The applicator permits accurate control of the amount of coating material applied to the surface. In this way, the surface receives neither an excessive nor an insufficient amount of the coating material. Moreover, the bristles may be pushed in to permit the coating material to be applied to a small, irregular surface, such as pits and fissures, or pulled out to permit the bristles to fan out for application to broad surface areas.

Abstract: A splash shield for containing contaminated fluids from a wound and a method of use are disclosed. The shield is a transparent dome-shaped body made from a plastic film. The shield can be pierced by a sharp medical instrument, such as a hypodermic syringe or scalpel, and the wound cleansing or draining operation takes place under the shield as it is held against the patient. The shield is deformed by hand to conform to the wound site. The shield can also be hand held above and spaced from the wound site while the cleansing or draining operation takes place, to intercept and provide protection from splashed or squirted fluids. The shield is provided in single use, disposable form.

Abstract: An apparatus for applying dental bonding agents to tooth surfaces. The apparatus includes a syringe-type dispenser for holding a quantity of bonding agent and an applicator tip having short bristles at one end. The applicator tip is curved to accommodate access to tooth surfaces undergoing restorative dental procedures. The short bristles are in communication with the syringe-type dispenser, thereby allowing the bonding agent to be continuously applied to the tooth surfaces without the need to stop the procedure and rewet the applicator in a bonding agent source. The syringe-type applicator permits accurate control over the amount of bonding agent applied to the tooth surface. In this way, the tooth surface receives neither an excessive nor an insufficient amount of the bonding agent. Moreover, the short bristles permit the bonding agent to be applied to the tooth surface without damaging the fragile crystalline structure produced during acid etching.

Abstract: For free-hand use by a dentist, there is provided a cylinder containing tooth filling material urged out of the cylinder by spring pressure, sometimes augmented by thumb pressure against the end of a piston rod in the cylinder. Flow of the material out of the cylinder through a removable and replaceable flexible curved nozzle is under control of a valve located to be readily manipulated between open and closed positions by the same hand of the dentist. Preferably the filling material is in a discrete capsule containing enough filling material for several teeth and easily placed in and removed from the cylinder.

Abstract: A liquid reinfusion bag system is provided for collecting blood from a surgical site and/or reinfusing the collected blood into the patient. The system includes a flexible bag having an external frame with locking elements to retain the bag in extended position during the time the bag is being filled, the locking elements being displaceable to permit the bag to collapse during the reinfusion process.

Abstract: This invention concerns a disposable single dose syringe type applicator in the form of an elongated body that comprises two integrally joined sections which can be separated by breaking. One section is a tubular barrel section which constitutes a medicament reservoir having two openings. The other section is a rod-like section, which constitutes a plunger, which, by reason of being integrally joined to the barrel section seals one opening of the reservoir. The reservoir section is prefilled with a medicament. At the other opening end of the medicament reservoir, through which it is prefilled with medicament, there is arranged an easily removable sealing means. After separation, the plunger section slidably fits into the reservoir in such a way that essentially the whole medicament content of the reservoir is ejected therefrom when the plunger is inserted into the reservoir.

Abstract: An applicator for dispensing metered amounts of medicaments in stick formulations is comprised of a hollow tube and a piston mounted to slidingly move within the tube. A finger operable base is rotatably mounted at one end of the tube and is mechanically linked by a screw member to the piston to urge the piston towards the other end of the tube. A depressible thumb piece is associated with the rotatable base. An extension or post is associated with the thumb piece to extend inward of the tube and to register with a race formed inside the tube. The race has a series of detents with which the extension may register upon rotation of the base. Registration between the extension and the detents signals certain increments of rotation or prevents further rotation of the base. The thumb piece is depressed inward to bring the extension out of registration with the detents.

Abstract: Apparatus for the delivery of light-curable composite dental filling material comprises a tubular composite reservoir, plunger and slider. The slider is free to move longitudinally along the reservoir but is matingly mounted to facets on the outside surface of the reservoir to prevent angular movement of the slider relative to the reservoir. The plunger consists of a shaft threaded to mate with the threaded inside diameter of the composite reservoir. The plunger also has a disk integrally formed to end of the shaft at one end and a male front piece at the other. The male front piece mates with a female fitting of a separate composite extrusion element.

Abstract: A device for delivering an irrigant and/or a medicament fluid to the gingival sulcus comprises an elongated handle member terminating in a flexible tip portion provided with aperture(s), the tip being connected to a fluid reservoir via a conduit and operable to discharge the fluid through the apertures only on the application of pressure to the reservoir and/or opening of a normally closed valve or apertures in the tip by flexing the tip, e.g., by pressing same against a tooth. In preferred embodiments, the handle is tubular, the distal end portion thereof comprising the fluid reservoir.

Abstract: An applicator for impressing brands or medicaments on animals has a handle mounted for movement towards or from an applicator pad containing a liquid chamber communicating with a base, a part of which, having the configuration of the area over which liquid is to be applied to an animal, is liquid-permeable. A liquid container, which may serve as the handle, leads to the liquid chamber by way of a valve mechanism such that each movement of the handle towards the applicator pad as the pad base is pressed on an animal introduces to the liquid chamber liquid under pressure which is expelled through the liquid-permeable part of the applicator pad base.

Abstract: A medicament applicator having a rigid, curved delivery tube provides controlled diffusion of medicament, as well as rigidity for burnishing of tissue and removal of coagulated blood, and maneuverability for reaching desired points of application within the mouth or within an incision. The tube is curved to a pre-determined shape, and has a small amount of padding at the delivery end. Diffusion of the medicament is controlled by a pressure-applied delivery system utilizing a syringe-plunger, a syringe-capsule-plunger, a squeeze bulb or similar device. Release of the pressure-applied delivery system immediately stops the flow of medicament.

Abstract: A syringe containing a lyophilized mixture of an absorbable gelatin powder and aminocaproic acid is prepared by mixing the gelatin powder, aminocaproic acid and water to form a slurry, introducing an aliquot of the slurry into a syringe and freeze-drying the slurry in the syringe.

Abstract: A dental syringe and a method of packaging and dispensing a dental material wherein the package containing the dental material comprises a cartridge containing a bulk supply of dental material, and which cartridge is constructed so as to function as a syringe for effecting the extrusion of the dental material therefrom as may be needed in a dental restorative procedure. The cartridge comprises an elongated tubular barrel having an open end portion and a forward discharging orifice portion through which the material is extruded. A displaceable piston seals the rear end of the barrel to confine the dental material within the barrel, and which cartridge can be readily attached to a handle and associated plunger to complete a syringe assembly. The plunger is also provided with a device for relieving the back pressure imparted to the cartridge piston during an extruding operation to prohibit any unwanted drooling of the material therefrom.

Abstract: This instrument is for relieving a pinched muscle on the spine of a patient, and it consists primarily of a glass bell member for placement on the injured area adjacent to the spine. It further includes a sleeve secured to the bell, which receives a threaded rod and a rubber ball, which serve as piston and rod means, for creating a suction, to relieve pain in the injured area. The rod further includes nuts and a removable clamp, for adjustment of the instrument.