Abstract: A syringe or cartridge having a hollow barrel with an open end and a second end suitable for attaching a needle assembly. A master plunger assembly that includes a master plunger and a plunger member is mounted in the barrel for longitudinal movement therein. A slave plunger is mounted in the barrel for longitudinal movement therein, and is located between the master plunger assembly and the second barrel end so as to define two chambers. The first chamber a liquid chamber and is between the slave plunger and the second barrel end, and the second chamber is a pneumatic chamber and is between the slave plunger and the master plunger assembly. The liquid-containing chamber is suitable for containing a liquid to be dispensed from the syringe, and the pneumatic chamber contains a gas such as air.

Abstract: A syringe or cartridge having a hollow barrel with an open end and a second end suitable for attaching a needle assembly. A master plunger assembly that includes a master plunger and a plunger member is mounted in the barrel for longitudinal movement therein. A slave plunger is mounted in the barrel for longitudinal movement therein, and is located between the master plunger assembly and the second barrel end so as to define two chambers. The first chamber a liquid chamber and is between the slave plunger and the second barrel end, and the second chamber is a pneumatic chamber and is between the slave plunger and the master plunger assembly. The liquid-containing chamber is suitable for containing a liquid to be dispensed from the syringe, and the pneumatic chamber contains a gas such as air.

Abstract: A syringe or cartridge having a hollow barrel with an open end and a second end suitable for attaching a needle assembly. A master plunger assembly that includes a master plunger and a plunger member is mounted in the barrel for longitudinal movement therein. A slave plunger is mounted in the barrel for longitudinal movement therein, and is located between the master plunger assembly and the second barrel end so as to define two chambers. The first chamber a liquid chamber and is between the slave plunger and the second barrel end, and the second chamber is a pneumatic chamber and is between the slave plunger and the master plunger assembly. The liquid-containing chamber is suitable for containing a liquid to be dispensed from the syringe, and the pneumatic chamber contains a gas such as air.

Abstract: A surgical mask of the type worn about the nose and face and tied about the head or ears. To the inner surface of the mask, a nasal dilator, in the form of two attachment devices, each with a base upon which two layers of pressure sensitive adhesive is applied using one of the adhesive layers. The mask is pinched in towards the sides of the nose and the adjacent portions of the face to attach the mask to the nose and adjacent portions of the face. When the pinch in forces are removed the mask attempts to return to its initial position and outwardly moves the skin and muscles of the sides of the nose and adjacent face portions to expand the nasal passages of the nose. The attachment devices cover muscles which control the lower valve and the inner valve of the nose and are attached with ⅔ of their area on the nose and ⅓ of their area on the face.

Abstract: A surgical mask adapted to cover the nose, mouth and eyes of the wearer is disclosed. A transparent lens component is positioned to cover the eyes of the user. A light-transmitting filter element being hingably connected to the upper edge of the transparent lens. The filter may be positioned selectively into overlapping relation of the lens to provide a filtering function or folded 180° to remove the filter from overlapping relation of the lens panel. The filter and lens panel are connected such that a degree of relative lateral movement between the components is provided whereby the filter may be moved between overlapping and non-overlapping conditions of the lens without removing the mask from the wearer.

Abstract: A flexible intra-oral bandage and kit thereof including an hydrolyzable powder/water-wettable fiber mixture enclosed in a flexible, water-permeable, non-stick envelope. The envelope is immersed in water or medication so that the liquid is absorbed through the envelope to wet the hydrolyzable powder/water-wettable fiber mixture and form a moldable tacky gel. The envelope is then removed from the gel and the gel is manually molded and placed in a desired location in a patient's oral cavity. The kit can also be used as a drug delivery system to deliver medication to a patient through the oral cavity.

Abstract: A reinforcement pad can be applied to sheets of paper, such as notebook paper. The reinforcement pad generally comprise a ring having a split region. The split region permits placement of the reinforcement ring around an object, such as the ring of a ring binder, without removing the sheet to be repaired or splitting the ring. Preferably, the ring includes an adhesive surface that permits easy mounting to the desired sheet at the damaged area.

Abstract: A reclosable fastener having first members on a first side of the separation of an envelope, package, box or the like caused by the removal of a tear strip. In a first embodiment, a base is connected by a tether to a movable element. A similar base is placed on the other side. When the movable element is caused to engage the second base the tether acts to seal the separation. In a second embodiment, individual non-connected bases are set transverse to the separation. A series of locking members joined to form a band are connected to the other side of the separation by adhesive materials. The band is positioned across the separation to close it and the locking members are joined to the non-connected bases. As many non-connected bases and locking members as needed to close a particular separation can be used.

Abstract: A facial surgical mask of the type worn over the nose, mouth, chin and portions of the wearer's cheeks and held in place by one or more bands extending about the back of the head or about the ears. A first band on the inside surface of the mask attaches to the wearer's nose while a second band counterbalances the first to minimize the forces applied to the wearer's nose.

Abstract: A dental appliance for supporting marking paper within a patient's mouth and for directing a supply of air toward the marking paper, including first means for holding marking paper for insertion into a patient's mouth between opposing tooth surfaces, the first means including jaw members for holding the marking paper and additionally including means for opening the jaw members for releasing the marking paper, and second means operatively coupled to the jaw members for receiving and directing a supply of air toward the marking paper for maintaining the marking paper and the opposing tooth surfaces dry.