52 results about "Dental syringe" patented technology

A method, system, device and an artificial tooth is disclosed for simulating both pain and anesthesia in a model of jaws. The tooth is equipped with sensors and connected to a data processing unit, memory unit and audiovisual display unit. The system is for teaching and practicing in the field of dentistry according to which removing artificial tooth or artificial bone substances by a dental drill, generates signals of pseudo pain with different intensities. Signals are fed to the data processing unit which simulates perception of the simulated pain and accordingly to said audio-visual display unit which simulates reaction to the different intensities of generated pseudo pain signals by playing different sounds which are stored in said memory unit. Furthermore, the system is able to simulate anesthesia by generating block signals as a result of applying different anesthetic techniques by means of a dental syringe connected to the system.

A dental syringe (10) has a needle (11) affixed to a carpule holder (12), which carpule holder (12) is affixed to a power drive unit (13). A harpoon (20) is provided to affix the drive unit to the carpule plunger (32). The harpoon (20) is made of stainless steel or other hard, corrosion resistant, sterilizable, material. Harpoon 20 has a unique barb geometry and hardened, knife-like, edges (21). The syringe (10) may operate to divide the delivery of anesthesia into two phases. According to the method, during the first about 10 seconds of the injection, anesthetic is delivered at an extremely slow rate to maximize patient comfort. The injection rate then automatically increases to the preprogrammed rate associated with the injection type selected.

Conversion assemblies enable an air/water dental syringe adapted for connection to an existing tip such as an autoclavable tip to instead receive disposable tip. A conversion kit includes a cap subassembly with a cap body having a distal opening into which the disposable tip is inserted, and an adapter subassembly having a proximal end configured for connection to the syringe body and a distal end configured for coupling to the cap subassembly. The adapter subassembly includes one or more components with cut-outs, grooves or channels to direct air and water from the syringe body to the air-carrying channels and water-carrying tube of the disposable tip through the cap subassembly. To accommodate a wide variety of syringe styles, the adapter subassembly may include a proximal receptacle to receive a stem on the syringe; a proximal stem insertable into the syringe; one or more proximal air- or water-carrying tubes insertable into the syringe; or a threaded connection to the syringe body.

A dental syringe tip system for attachment to a dental syringe. The dental syringe tip system can include components such as an outer core, an inner core, and a carrier which can be combined in a multitude of combinations to achieve different fluid flow characteristics, such as discharge pressure and discharge pattern, through the dental syringe tip. The outer core and inner core can have passages designed to modify fluid flow characteristics. In addition, the outer core and inner core can have additional connectors for receiving fluids from sources other than a dental syringe. Some or all of the components can be separate to be assembled by a manufacturer or an end-user. Assembly of multiple components can be facilitated by retention features located on the components.

A decorative dental tip is provided for a dental syringe. The decorative dental tip includes a molded, outer surface portraying an object selected to alleviate an anxiety of a patient. The dental tip further includes a molded, inner lumen in fluid communication with a dental syringe.

A small dental syringe has a spring biased plunger and a split, adjustable thumb receiving member. The dimensions of the syringe result in a shorter, over-all, distance a user must spread his/her thumb from the fingers gripping the syringe for aspirating.

A two-part needle for a dental syringe in which the first part of the needle is attached to the syringe and has a larger cross0section than the other part, which is malleable, can be increased while the first part has a chamber for housing a cartridge with thermoplastic material therein that is caused to flow through the needle and into the dental cavity.

A composite material is provided which, while having an unusually high filler content may be extruded from a dental syringe and remains easily adaptable in the dental cavity. When materials of the present invention are cured, dental restorations are provided which have unusually high surface hardness and yield strength, as well as a low volume shrinkage on curing. This is achieved by use of a mixture of filler particles with a specific size, size range, and size relationship. Such a combination of properties makes the material of the present invention particularly useful for restoring cavities in posterior teeth.

Syringe tips for use with dental syringes, connectors for connecting syringe tips to a dental syringe, and combinations thereof are described. In one embodiment, a syringe tip has an elastic inner tube with a flexible proximal portion extending proximally beyond a shoulder of an outer tube. An elongate fluid passageway extending from an entrance at the proximal end of the inner tube's flexible proximal portion to an exit at the distal end of the inner tube. The outer tube defines at least a portion of at least one additional elongate fluid passageway. In another embodiment, a syringe tip as described above is provided in combination with a connector that includes a tubular shaped portion adapted to be received within the fluid passageway of the inner tube and wherein the distal end of the tubular shaped member includes fingers adapted to radially expand the inner tube over the tubular shaped member.

A dental syringe (10) has a needle (11) affixed to a carpule holder (12), which carpule holder (12) is affixed to a power drive unit (13). A harpoon (20) is provided to affix the drive unit to the carpule plunger (32). The harpoon (20) is made of stainless steel or other hard, corrosion resistant, sterilizable, material. Harpoon 20 has a unique barb geometry and hardened, knife-like, edges (21). The syringe (10) may operate to divide the delivery of anesthesia into two phases. According to the method, during the first about 10 seconds of the injection, anesthetic is delivered at an extremely slow rate to maximize patient comfort. The injection rate then automatically increases to the preprogrammed rate associated with the injection type selected.

A dental syringe tip system for attachment to a dental syringe. The dental syringe tip system can include components such as an outer core, an inner core, and a carrier which can be combined in a multitude of combinations to achieve different fluid flow characteristics, such as discharge pressure and discharge pattern, through the dental syringe tip. The outer core and inner core can have passages designed to modify fluid flow characteristics. In addition, the outer core and inner core can have additional connectors for receiving fluids from sources other than a dental syringe. Some or all of the components can be separate to be assembled by a manufacturer or an end-user. Assembly of multiple components can be facilitated by retention features located on the components.

A dental syringe (10) has a needle (11) affixed to a carpule holder (12), which carpule holder (12) is affixed to a power drive unit (13). A harpoon (20) is provided to affix the drive unit to the carpule plunger (32). The harpoon (20) is made of stainless steel or other hard, corrosion resistant, sterilizable, material. Harpoon (20) has a unique barb geometry and hardened, knife-like, edges (21). The syringe (10) may operate to divide the delivery of anesthesia into two phases. According to the method, during the first about 10 seconds of the injection, anesthetic is delivered at an extremely slow rate to maximize patient comfort. The injection rate then automatically increases to the preprogrammed rate associated with the injection type selected.

A safe needle separator for a dental syringe includes: a basket having an internal storage space with an open top; a fixing shaft vertically disposed on a bottom inside the basket; and a rotary plate rotatably disposed on an upper end of the fixing shaft and having a holding hole in which a needle head of a dental syringe is inserted and fixed so that when a user holds a dental syringe and turns the rotary plate clockwise with a needle head fixed in the holding hole, the needle head thread-fastened counterclockwise to the dental syringe is separated from the dental syringe and dropped into the storage space.

Dental syringe (1) comprising: a supply cord (2) connecting it to a dental unit, a housing (3), a nozzle (4), a couple of valves supplying and stopping water and air, and heating elements (20, 26) for the supplied fluids, switchable on by a ring nut (10), wherein the heating systems are contained inside housing (3) and comprising means (21, 22, 27, 28, 29) for fluids temperature control, capable of keeping said fluids warm even when syringe (1) is at rest, and in that the water heating system comprises a heat exchanger (13) and at least a heating element (20), a temperature sensor (21) at the heat exchanger, a temperature sensor (22) at the exit from the heat exchanger (13), and a microprocessor (29).

Provided is an anesthetic solution-filled cartridge-type electric dental syringe, wherein the plunger has been shortened but the plunger can nevertheless be extended to the distance necessary to evacuate the anesthetic solution from the cartridge. The syringe comprises: an extension tube (11) into which a plunger (5) is movably inserted, the extension tube being movably disposed in the through hole (14) of a support block (13) and having racks (15, 15) formed in the side surface thereof that are coordinated with the racks (9) of the plunger; and a means for the plunger to draw the extension tube to engage the racks (15, 15) of the extension tube with a pinion (21) when the plunger reaches the middle of the distance corresponding to the anesthetic solution accommodation length of the cartridge. By the engagement of the racks of the extension tube with the pinion, the plunger moves together with the extension tube for the remainder of the distance corresponding to the anesthetic solution accommodation length of the cartridge.

A device or arrangement for a carpule for a dental syringe permits the harpoon on the distal end of the plunger rod to engage the rubber or rubber-like plug or piston of the carpule, but blocks the piston from being pulled out the open proximal end of the tubular glass body of the carpule. A preferred version has an apertured cap that fits onto the proximal end of the carpule, a retaining neck ring that fits onto the penetrable seal at the proximal end of the carpule, and a bar connecting them. The bar also serves as a grip to assist in handling the carpule.

A cartridge syringe system includes a syringe (5). The syringe has a tip-ward direction and a ring-ward direction. The syringe (5) has a syringe body (9) and an actuator ring (7). A shaft (10) slidably mounts the actuator ring (7) to the syringe body (9), with a harpoon (11) at a tip-ward end of the shaft (10). The syringe body (9) has a spiral mount external to the syringe body (9) for removably mounting a sheath (20) to the syringe body (9), on a cooperating internal spiral sheath mount. The syringe body (9) and the sheath have similar openings. The sheath opening can be rotated to coincide with the syringe body opening, for inserting a needle assembly into the syringe body, or for removing the needle assembly. The sheath opening can be rotated to obstruct the syringe body opening, for retaining the needle assembly in the syringe body.

The invention discloses an ensiform needle positioning stasis removal therapy. The therapy includes the following steps: S1, detecting with a sonar light wave detector and determining the location ofstasis, S2, according to a detection report, comprehensively assessing physical condition, and pulse, heart rate, blood pressure and glucose states, measuring blood pressure, blood sugar and heart rate, conducting the next step if no symptoms of myocardial infarction and stenocardia exist; S3, determining the operation position in an operating room, shaving the skin, repositioning with a marker, performing routine disinfection first with iodine and then performing deiodination with alcohol, extracting saline and galidocaine with a dental syringe, and performing local infiltrating anesthesia onthe positioning point; S4, turning on a negative pressure stasis removal and decondensation machine, taking a sterilized ensiform need and pricking at each positioning point once, then aligning a negative pressure port of the decondensation machine exactly above the needle hole, compacting, and starting the negative pressure decondensation and stasis removal function; S5, performing the routine disinfection again after stasis removal, applying aseptic gauze, sticking an adhesive tape, and therefore completing the treatment. The ensiform needle positioning stasis removal therapy has the advantages of simple structure, obvious effect and high patient experience.