Syringe delivery system for dispensing a dental composite or other highly viscous material
First Claim
1. A syringe delivery system for dispensing a viscous material through a syringe opening comprising:
- a syringe barrel having a delivery opening;
a plunger including a threaded shaft that threadably engages said syringe barrel for selective dispensing of a viscous material through the delivery opening; and
a plunger gripping member in gripping communication with said plunger that includes means for sealing said threaded shaft of said plunger so as to prevent contamination by foreign matter.
1 Assignment
0 Petitions
Accused Products
Abstract
A syringe delivery system for dispensing a highly viscous material through a syringe delivery opening. The system includes a syringe barrel having a delivery opening, a plunger including a threaded shaft that threadably engages the syringe barrel for selectively dispensing a viscous material through the delivery opening, and a plunger gripping member in griping communication with the plunger that includes means for sealing the threaded shaft of the plunger so as to prevent contamination by foreign matter. According to one embodiment, a sheath may be included that covers the threaded shaft of the plunger so as to hide the plunger beneath the sheath. The sheath provides a sealed environment for the threaded shaft so as to prevent entrance or contamination by foreign matter.
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Citations
20 Claims
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1. A syringe delivery system for dispensing a viscous material through a syringe opening comprising:
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a syringe barrel having a delivery opening;
a plunger including a threaded shaft that threadably engages said syringe barrel for selective dispensing of a viscous material through the delivery opening; and
a plunger gripping member in gripping communication with said plunger that includes means for sealing said threaded shaft of said plunger so as to prevent contamination by foreign matter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A syringe delivery system for dispensing a viscous material through a syringe opening comprising:
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a syringe barrel having a delivery opening;
a plunger including a threaded shaft that threadably engages said syringe barrel for selective dispensing of a viscous material through the delivery opening; and
a plunger gripping member in gripping communication with said plunger that includes a sheath that covers said threaded shaft of said plunger so as to shield said plunger beneath the sheath;
wherein said sheath provides a sealed environment for said threaded shaft so as to prevent entrance or contamination by foreign matter.
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19. A method of using a syringe delivery system comprising:
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providing a syringe delivery system comprising;
a syringe barrel having a delivery opening;
a plunger including a threaded shaft that threadably engages said syringe barrel for selective dispensing of a viscous material through the delivery opening; and
a plunger gripping member in gripping communication with said plunger that includes a sheath that covers said threaded shaft of said plunger so as to hide said plunger beneath the sheath;
wherein said sheath provides a sealed environment for said threaded shaft so as to prevent entrance or contamination by foreign matter;
manipulating the syringe barrel of said syringe delivery system so as to selectively dispense a viscous material through the delivery opening of said syringe delivery system; and
cleaning the syringe barrel and sheath of syringe delivery system. - View Dependent Claims (20)
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Specification