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Publication numberUS1498267 A
Publication typeGrant
Publication dateJun 17, 1924
Filing dateAug 27, 1921
Priority dateAug 27, 1921
Publication numberUS 1498267 A, US 1498267A, US-A-1498267, US1498267 A, US1498267A
InventorsHachman Elmer E
Original AssigneeHachman Elmer E
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Syringe and guard
US 1498267 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)


Filed Aug. 27. 1921 Elkton/mgl Patented June 17, 19245 UNITED STATES maar ELMER E. HACHMAN, F IBATJCLIIVJORJ]J MARYLAND.


Application filed August 27,1921. serial No. 496,149.

To all whom t may concern.'

Be it known that I, ELMER E. HACHMAN, a citizen of the United States of America, re- Y siding in the city of Baltimore, State of Maryland, have invented certain new and useful Improvements in Syringes and Guards, of which the following is a kspecification.

The present invention relates to a combination tongue and cheek guard and syringe,

for use in the practice of dentistry. Its purpose being the protection of the tongue and cheek from injury during an operation and at the same time to act as a syringe, by injecting in the cavity or vicinity of the tooth being operatedl upon an antiseptic or local anesthetic. Y

In dental operations of all characters it is important that the dentist should have suliicient light and space in the vicinity of the affected tooth or gum and particularly to be free to work with the necessary instruments without injury to the surrounding parts such as the cheek or tongue. During such operations it is frequently necessary to immedi-y ately syringe the parts for antiseptic purposes, to cleanse the parts thoroughly, for the immediate comfort of the patient. It can be fully appreciated that the dentist can obtain a better view of the yparts being worked upon when they are syringed and free from the'grindings, blood or other foreign accumulations that are a natural consequence to dental operations.

The guard and syringe is at all times in the hands of the dentist and completely under his control, making it possible to adapt it to any position necessary for the comfortand-protection of the patient. This 40 condition is very favorable to the operator in that it permits a free use ofthe necessary instruments without danger to the patient of wounding the cheek, tongue or surrounding tissue, i. e.-the dentist while holding the guard in one hand and his operating tool or drill in the other, he can at all times follow up the course of his instrument, therebyreducingto a minimum any danger of injuryy to `the patient.

In diiiicult operations and particularly with nervous patients it is frequently necessary for 'the dentist to require an assistant to constantly` syringe and ycleanse the parts during the operation also to prevent the cotton packing or absorbent material from working out of position. ,The present inven tion is designed to render such ,an assistant unnecessary under any circumstances where such services are needed. The dentist can readily prevent the moving of the packing bykeeping vthe lower or'upper' edges of the guard pressed upon the packing. The surrounding parts are at thesame time fully protected from being injured or cut by the instrument, and the syringe can ybein constant use duringthe whole of the operation without necessitating the stopping ofk the work to reach for a syringe. With s uch use of the invention the patient vcan immediately eject from his mouth all objectionable matter as soon as the dentist has removed his drill. This does away with the unpleasant condition of retainingsuchy matter in the mouth until the operator canlay aside his drill and preparea syringe to clean the parts with andA assist the patient to eject the grindings from his mouth. Y

The-device is also of great comfort to thev f patient whether being used for lthe uppery or lower portion of the jaw, in that the tongue `is not harnessed or lined in a par-r ticular position in an effort to protect it, as in a large number of such devices, but is free to move without danger of being injured.- This. free movement of thetongue permits the patient to swallow or gulp when so inclined during an operation, preventing the usual gagging sensa tion as is caused by a fixed instrument or guard `in the mouth.

The device is also of great use in protecting the tongue and cheek from injury kwhen long and continuous grinding of the teeth is necessary, such as the grinding down vof ya tooth for a crown yor cap and bridge abutmentsgy In the accompanying drawings I have illustrated a tongue guard and syringe emn 'bodying the various features ofmy invenarm terminating .in a second spoon shaped cooling liquid simultaneously on both sides member, the seid erin `and spoon shaped of a grinding tool substantially as described. 10 members forming a recess, the said recess Signed by me at Baltimore, Maryland,

having u plurality of nozzles pointing in this 22nd day of August, 1921.

u direction towards euch other from opt ELMER E. HAGHMAN posite sides of the recess, and their streams Witnesses: coming substantially in juxtaposition to WILLiAM F. LUBKING,

each other Yfor the purpose of directing a GRACE RUNGE.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2831480 *Oct 31, 1956Apr 22, 1958Francis MilanoCheek and tongue retractor
US4232660 *Mar 26, 1979Nov 11, 1980Coles Robert LWinged irrigating surgical retractor
US5147298 *Apr 3, 1991Sep 15, 1992National Research Development CorporationFeeding apparatus
US6939134 *Jun 21, 2003Sep 6, 2005Ez Retractor, Inc.Cheek, lip and tongue shield
US6951567May 17, 2002Oct 4, 2005Bernardo LevitTongue treating device
US7670141Jul 7, 2006Mar 2, 2010Water Pik, Inc.Oral irrigator
US8113832Dec 11, 2006Feb 14, 2012Water Pik, Inc.Hand held oral irrigator
US8403665Feb 22, 2010Mar 26, 2013Water Pik, Inc.Oral irrigator
US8408483Apr 2, 2013Water Pik, Inc.Adjustable flow regulator for dental water jet
US8641649Jun 25, 2010Feb 4, 2014Water Pik, Inc.Pump for dental water jet
US8801667Jul 10, 2012Aug 12, 2014Water Pik, Inc.Pump for powered irrigator for sinus cavity rinse
US8808209Jun 25, 2010Aug 19, 2014Water Pik, Inc.Dental water jet irrigator handle
US8808245Jul 10, 2012Aug 19, 2014Water Pik, Inc.Powered irrigator for sinus cavity rinse with detachable reservoir
US8888727Jun 25, 2010Nov 18, 2014Water Pik, Inc.Vibration damping for dental water jet
US9050157Dec 29, 2010Jun 9, 2015Water Pik, Inc.Dental water jet with storage container reservoir cover
US9061096Dec 16, 2010Jun 23, 2015Water Pik, Inc.Powered irrigator for sinus cavity rinse
US20040259055 *Jun 21, 2003Dec 23, 2004Ronald SherryCheek, Lip and Tongue Shield
USD731640Sep 12, 2013Jun 9, 2015Water Pik, Inc.Reservoir for a water flosser
U.S. Classification433/89, 600/242, 604/212
International ClassificationA61C17/02, A61C17/00
Cooperative ClassificationA61C17/02
European ClassificationA61C17/02