Flexible syringe needle

Details Flexible syringe needle Flexible syringe needle

1998-10-26

2000-12-19

Kennedy, Sharon

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604264, 604525, A61M 532

Patent

active

061622028

ABSTRACT:
A flexible irrigation syringe tip with a "Luer Lock" or other type of connector commonly used in medical tubing includes a flexible needle. The needle shaft is preferably made of a material which is bendable but which returns to its original shape, such as silicone, polypropylene or other flexible metal alloys and has an open or a closed tip. The tip may be flat or rounded. The hollow shaft of the flexible syringe itself is parallel sided with at least one hole in it to allow the irrigation solution to flush the canal when inserted. Preferably, to insure backflowing of the fluid from the tip area of the syringe needle backwards up the tooth canal, the at least one hole is a lateral side port, which lateral port causes the exiting of fluid in a direction transverse to the longitudinal axis of flexible syringe needle. The shaft may have at least one fluid diverter, such as a flute or groove to help direct the debris up and out of the tooth. This flute or groove may be straight or spiraled. The shaft may also have at least one hatch marking or inscription to show length from tip towards the hub interface of the flexible syringe needle with the connector to the handle. The flexible irrigator syringe needle may be alternatively attached to a precision microprocessor fluid dispensing device to limit the pressure and temperature of application and the amount of fluid therethrough.

REFERENCES:
patent: 3884230 (1975-05-01), Wulff
patent: 4018222 (1977-04-01), McAleer et al.
patent: 4026025 (1977-05-01), Hunt
patent: 4274555 (1981-06-01), Sneider
patent: 4431426 (1984-02-01), Groshong et al.
patent: 4512769 (1985-04-01), Kozam et al.
patent: 4702260 (1987-10-01), Wang
patent: 4735619 (1988-04-01), Sperry et al.
patent: 5127831 (1992-07-01), Bab
patent: 5544651 (1996-08-01), Wilk
patent: 5910133 (1999-06-01), Gould

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