John J Jacklich

41844904, Jan 22, 1980

Aug 23, 1978

5/935938

John Jacklich - Santa Cruz CA

A61M 100

128236

A precision endodontic syringe is provided of leak-proof construction which is adapted for precise injection of a paste root canal sealer into the apical part of root canal of a tooth as in root canal work.

43625118, Dec 7, 1982

Jul 9, 1981

6/281574

John Jacklich - Santa Cruz CA

A61C 508

433220

A threaded device is provided which can be screwed into the tooth root of a broken tooth to aid in the attachment of a crown or similar prosthesis. The threaded device has a head which is in the shape of a spherical segment of less than a hemisphere which holds a retention ring, a shim, and in some embodiments a coping dish whereby the device of the present invention can be screwed into a threaded hole in the tooth, a dental cement applied thereto and a crown or other prosthesis applied over the head of the bolt and retention ring. In a preferred embodiment of the invention, the retention ring is in the form of a spherical segment which is complementary to the spherical segment of the head to provide a complete spherical head.

47101725, Dec 1, 1987

Nov 24, 1986

6/934434

John Jacklich - Santa Cruz CA
George Mikula - Bozeman MT

A61M 100

604118

A high pressure anesthetic syringe is provided for use in procedures such as intraligamentary anesthesia wherein a high pressure is generated by a drive mechanism to advance a piston rod in a direction to express liquid anesthesia from a glass carpule, wherein a pressure indicating mechanism is provided by including an elongated stem slidably mounted within the piston rod of the syringe and wherein pressure applied to the liquid anesthetic is indicated by relative movement between the elongated stem and the piston rod.

44445601, Apr 24, 1984

May 20, 1983

6/495732

John Jacklich - Santa Cruz CA

A61M 100

604224

A compact anesthetic syringe is provided for injecting a medication under high pressure into a confined space. The instrument is particularly adapted for injecting a medication into the dental periodontal ligament (PDL) and may be used by any dentist without special training.

49116398, Mar 27, 1990

Nov 21, 1985

6/800207

John J. Jacklich - Santa Cruz CA

A61C 502

433102

An improved ultrasonic handpiece adapter for use in root canal procedures is provided in which a fire well is formed in the body of the device. The lower surface of the file well is frusto-conical in shape and receives a file wherein an enlarged file head has a frusto-conical shape at its bottom which seats against the lower surface of the file well when downward pressure is exerted on the file and which floats with respect to the lower surface of the file well when upward pressure is exerted on the file. A clutch mechanism is thereby provided wherein the file blade is in its engaged position during a cutting stroke and wherein the file blade floats during the motion of positioning the blade for the next cutting stroke. A cutting file has the tip of its shank flared so that the shank is prevented from being pulled through the file head. The apparatus may be connected to a conventional source of sub-sonic or ultrasonic power.

46749799, Jun 23, 1987

Nov 21, 1985

6/800206

John J. Jacklich - Santa Cruz CA

A61C 502

433102

An endodontic file is provided for use in root canal procedures. The file has an elongated blade with cutting edges formed on the lower portion thereof and having a shank at its upper portion. A file head is provided having a passageway formed therein which receives the shank of the blade. The end of the shank is flared to prevent the shank from being drawn through the passageway in one direction. By anchoring the file blade in this manner, the use of a low profile handpiece is facilitated for ease of use in a patient's mouth.