Needleless injector

Details Needleless injector Needleless injector

1995-05-24

1996-03-26

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604135, A61M 530

Patent

active

055016669

ABSTRACT:
A needleless injector for providing medication provides improved flow rate with a reduced pressure head. The injector includes discharge member having a rounded or sloped jet orifice, a milled valve member, and a check valve, which provide for increased shot velocity, reduced time of the shot and increased flow.

REFERENCES:
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patent: 5024656 (1991-06-01), Gasaway et al.
patent: 5049125 (1991-09-01), Accaries et al.
Mizzy, Inc., Syrijet Mark III brochure (circa 1968).
Mizzy, Inc., Syrijet Mark II brochure (circa 1968).
Mizzy, Inc., Syrijet Mark II product information sheet (circa 1968).
Mizzy, Inc., assembly drawings MJ-1841-B, MJ-1707-C, MJ-1700-G, and SA-6276 (Jan. 1988).
Greenfield, William and Karpinski, Joseph F., Needleless Jet Injection in Comprehensive Pain Control and Applications to Oral Surgery, Anethesia Progress, Jul.-Aug. 1972.
Bennett, C. Richard and Monheim, Leonard M., Production of Local Anesthesia by Jet Injection, Oral Surgery, Oral Medicine, Oral Pathology, vol. 32, No. 4, pp. 526-530, Oct. 1971.
Mott, M. G. and Stevenson, P. A., The Use of the Syrijet to Attain Local Anaethesia in Children with Acute Leukaemia, The British Journal of Clinical Practice, vol. 27, No. 11, Nov. 1973.
Hardison, Lt Col C. D., Application of a Versatile Instrument for Production of Cutaneous Anesthesia Without Needle Penetration of the Skin, JACEP, 1977.
Bennett, Richard C., et al., Studies on Tissue Penetration Characteristics produced by Jet Injection, JADA, vol. 83, Sep. 1971.
Mumford, David M. and Jackson, Pamela L., The Successful Use of Jet Anesthetic Injections with Childhood Lacerations, Clinical Pediatrics, vol. 15, No. 10, Oct. 1976.
Smith Karen A., et al., Jet Injection Anesthesia--a technique for painless bone marrow aspiration, The Journal of Pediatrics, vol. 85, No.5, pp. 731-732, Nov. 1974.
Denne, Jean R., et al., A Survey of Patient Preference for Insulin Jet Injectors Versus Needle and Syringe, The Diabetes Educator, vol. 18, No. 3, May/Jun. 1992.
Bioject Brochure re Biojector.RTM.2000, 1992.

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