US1647862A - Combined dental mouth mirror and water syringe - Google Patents

Description

Nov. 1, 1927.

M. W.'GA1LLARD COMBINED DENTAL MOUTH MIRROR AND WATER SYRINGE Filed Jan. 22, 1927 Patented Nov. 1, 1927.

- were a: if I "MADISON wrnson 'earttann, ,IOF,MOBILE, ALABAMA.

oonuemnn nnnrA mourn Mrnnon AND WATER SYRINGE.

, .Applicatiori filed January 22,1927. Serial No. 162,778.

The present invention relates to improvements 1n-combineddental mouth mirror and *water syringe, andhas for an object toprosyringawherebythe use of both maybe had sinuiltaneously without changing instru- -=ments and withoutithe aid of a dental assistant as isnow necessary. 3 I

A fnrther object of theinvention lies in assistant to directthestream'of water accurately likewlse the syringe used, as well as i the assistants hands are in the dentist s way.

isibeing'cut down by stones or burs. The

"water also"prevents the tooth dust from clogging-the stones or I burs, thereby making 3 ":theoperation'faster an'dlesspainful.

viewftheninvention will be more fullydescribed hereinafter, and will be more par- Figure 4 is a side elevation with parts broken away. a

Figure 5 is atop edge view, and Figure 6 is a cross section taken on the line 6-6 in Figure 2.

Referring more particularly to the draw-' ings 7 designates a cylindrical or tubular handle adapted to receive therein the rubber bag or sack 8 of the syringe, which bag or sack is exposed through the segmental removed portion 9 of the handle. 1 The finproviding an instrument forpouring warm jparts of the-mouth itis impossible for said By the use of the=invention much of the pain is avoided by the elimination ofhe'at" due tolthe water dripping on the tooth which -With.lthe foregoing and other objectshin ticularly pointed out in theclaimsappended gers are admitted through this cut away or removed portion for conipressinp; the each.

The mirror 10, preferably a circular disc m rror lscarrled upon the'shank 11 ailxed in the head 12 which is preferably frusto- "conical-as to its exteriorsurface, is formed with the internal bore 13, with the reduced neck 14 fitting into the end of the hollow handle 7 and with the external flange 15 spaced annularlyfrom the neck 14 and forming therewith a channel to receive'the handle edge-or rim, the flange 15-lying upon the-outside surface of said flange or rim.

The fit may be a tight frictional one enabling the mirror 10 and syringeneedle as a unit to be adjusted about'the axis of the tubular handle, or the head 12 maybe 'sol- *deredor otherwise' fixedly secured in place.

The flange 15 is preferably shorterthan the neckl l. The bore 13 communicates with the interior; of the rubber sack 8 and is also cmadetapermg or frusto-conical at its'outer portion 16 which communicates with the shank 17 of the hollow needle. This shank may extend axially. but is preferably inclined toward therear surface of the mirror 10. The outer terminal portion 18 of the so needle extends at an angleto theneedle shank 17 This terminal portion18lies at a conat an angle, shownfin Figure 3, to'extend 35 substantially diametrically across the back of the mirror.

In other-words the shank 17 and terminal needle end 18 lie at obtuse angles in two intersecting planes.

The plane of the mirror 10 forms an obtuse angle with the axis of the handle, as shown in Figure 4, and this disc mirror 10 as shown in Figure 5 is rotated through an angle about the axis of the handle, whereby itassumes the canted position shown in Figme 6 with respect to the cut away portion in the handle, whereby to enable the thumb or fingers to engage the rubber sack, while the mirror extends at a proper position for viewing the tooth therethrough. The tooth is indicated in dotted lines at 19 in Figure 1 and as having the cavity as indicated at The angles of incidence and reflection are indicated by the broken lines 21 and 22 and the stream of water at 23 showing that, while the cavity 20 is viewed by the dentist,

the stream of water 23 is at the same time directed into the viewed location. By the canted position of the mirror, shown in Figures 5 and 6, the line of sight may be across the handle, so that by twisting the handle the handle itself may be at any time removed from the projected line of vision.

The head 12 carries as a unitary structure the mirror,- needle and syringe sack sothat this unit may be removed from the handle quickly and conveniently.

Note also in Figures 3 and 5that the shank ll and mirror 10 are offset to one side of the axial line which places the mirror surface to better advantage with respect to the handle and enables the handle to be manipulated with less interference to the line of vision.

The needle which lies'back of the mirror is preferably flexible to allow a better flow of water by directing it according to the position the dentist is accustomed to holding the mirror. It also allows right and left handed workers to use it. Anterior and posterior teeth require different angles and the flexible needle takes care of this.

It is obvious that various changes and modifications may be made in the details of construction and design'of the above specifically described embodiment of this invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims.

l Vhat is claimed is 2-- 1. A combined dental mouth mirror and watersyringe comprising a tubular handle having a removed section, a head detachably fitted to one end of said hollow handle, a

compressible syringe sack attached to said head and lying in the hollow handle, a mirror carried by said head, and a needle also carried by said head in communication with the sack and disposed in rear of said mirror,

the plane of said mirror and'axis of said needle being disposed convergently whereby during actual viewing of the target a stream may be directed thereon from said needle.

2. A combined dental mouth mirror and water syringe comprising a hollow handle having a cut away portion, a head having an internal bore, a neck to fit within said handle and a flange to fit on the exterior of said handle, a compressible sack communicating with said bore, carried by said head and fitting within the hollow handle, a needle communicating with said bore and carried by said head, said needle having a shank and a tip portion inclined to said shank, and a mirror carried by said head and twisted at an angle about the axis of said handle.

3. A combined dental mouth mirror and water syringe comprising a hollow handle having a cut out portion, a head removably attached to said handle, a compressible syringe sack carried by said head within the handle, a mirror having a shank attached to said head, the plane of said mirror forming an obtuse angle with the axis of the handle, and said mirror being twisted at an angle about the axis of the handle and also being offset slightly from the axial line of said handle, and a needle carried by said head and having a shank inclined to the axis of the handle toward the rear of said mirror, and a tip portion inclined to the shank in two intersecting planes and said tip portion lying approximately diametrically of said mirror and converging with the mirror surface. Y

4. A combined mirror and syringe comprising a mirror, a syringe needle, and a handle for said mirror and needle, the plane of said mirror and axis of said needle being disposed convergently whereby during actual viewing of the target a stream may be directed on the target from said needle.

MADISON WILSON GAILLARD.

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