摘要:
A dynamic mixer head has a connecting cover, a rotor and a housing. The connecting cover has a rotor opening. The rotor has a first rotor axle mounted in the rotor opening and a mixing rotor connected with the first rotor axle. The mixing rotor has multiple vaned inner rotors with quarter-circle shaped multiple vanes and a vaned front rotor opposite to a second rotor axle of the mixing rotor with multiple vanes complementary to the multiple vanes of the multiple vaned inner rotors. The housing mounted to the connecting cover has at least two grooves disposed on the circular partition. Each of the at least two grooves has a spacer along each of the at least two grooves. The dynamic mixer head can enhance the mixing effect of two different component substances during rotation.
摘要:
A dental towel has at least four edges, a straight tear line and a surrounding band. One of the edges is oriented edge that is oriented forward a patient. The straight tear line is parallels the oriented edge, is near the oriented edge and has two ends and a length shorter than a length of the oriented edge. One of the ends is formed on an adjacent edge that is adjacent to the oriented edge. The surrounding band is mounted between the straight tear line and the oriented edge, surrounds conveniently a patient's neck and has an adhesive member sticking on the dental towel. The dental towel can be torn to obtain the surrounding band with a desired length to fit patient's neck. Thus, the dental towel can be positioned in front of patient's chest to prevent water or other agents from spraying to contaminate patient's clothes and neck.
摘要:
A mixer includes a mixer housing provided with two annular skirts respectively extending downward to form a receiving space for communicating with an interior of the tubular housing, a mixer element having a helix extending into the tubular housing, and a mixer inlet portion with a connection plate having two top openings selectively communicating with the two openings such that components received inside the two tubes are able to be selectively forced into the interior of the tubular housing for dispensing.
摘要:
A portable mixer for medication and/or dental impression material includes a gear assembly and an upper lid. The gear assembly comprises a helical gear with a bidirectional bearing, a clutch shell with a unidirectional bearing meshing with the helical gear, a spring positioned between the helical gear and the clutch shell, two pinions respectively positioned beside the clutch shell and the helical gear, and a shifting shaft mounted transversely through each of the two pinions, the helical gear, the bidirectional bearing, the spring, the unidirectional bearing, and the clutch shell. The upper lid comprises a fastener and a switch cover co-acted with the fastener and detachably contacting the helical gear and the clutch shell.
摘要:
A dental impression tray has a base and a relator. The base has a biting portion and a handle. The biting portion is curved. The handle is formed on the biting portion and has an arc hole that is defined through the handle to receive impression material. The relator has a vertical bar and a horizontal bar. The relator is mounted in the arc hole and is fastened in the arc hole by impression material. The horizontal bar connects perpendicularly to the vertical bar. Therefore, the impression of the teeth to be crowned or veneered as well as the relation between the impression and the patient's face are obtained simultaneously.
摘要:
A separating ring having a body being a resilient bent open ring and having two bent side bars having distal ends and wedge legs formed respectively on the distal ends, the wedge legs being spearheaded and fit easily between adjacent teeth to allow dental operations to be carried out easily and without the need for wedges.
摘要:
A mixer includes a mixer housing provided with two annular skirts respectively extending downward to form a receiving space for communicating with an interior of the tubular housing, a mixer element having a helix extending into the tubular housing, and a mixer inlet portion with a connection plate having two top openings selectively communicating with the two openings such that components received inside the two tubes are able to be selectively forced into the interior of the tubular housing for dispensing.
摘要:
A mixing device having a body, a pusher, an abutter and a mixer is provided. The body is tubular and has a fore end, a rear end and multiple chambers. Each chamber has a fore opening, a rear opening and a cap sealing the fore opening. The cap protrudes forwardly and has an outer surface and a top. The pusher has multiple rods respectively inserted in the chambers from the rear openings. The abutter has multiple tubes for respectively breaking the caps through to communicate with the chambers and each having a blunt end. The mixer is tubular and has an outlet, a connector and a mixing shaft mounted therein. The connector is connected to the fore end of the body and communicates with the tubes of the abutter. The cap may be easily injection-molded and agents may be filled directly into the chambers to ensure reliable operation.
摘要:
A dental impression tray has a base and a relator. The base has a biting portion and a handle. The biting portion is curved. The handle is formed on the biting portion and has an arc hole that is defined through the handle to receive impression material. The relator has a vertical bar and a horizontal bar. The relator is mounted in the arc hole and is fastened in the arc hole by impression material. The horizontal bar connects perpendicularly to the vertical bar. Therefore, the impression of the teeth to be crowned or veneered as well as the relation between the impression and the patient's face are obtained simultaneously.