U.S. patent number 3,716,054 [Application Number 05/062,860] was granted by the patent office on 1973-02-13 for apparatus for applying medication to teeth and body tissue.
This patent grant is currently assigned to William A. Porter. Invention is credited to James E. Hesse, Frank W. Hindsley, William I. Porter.
United States Patent |
3,716,054 |
Porter , et al. |
February 13, 1973 |
APPARATUS FOR APPLYING MEDICATION TO TEETH AND BODY TISSUE
Abstract
Disclosed is a porous medication impregnated carrier for
applying medication to a patient's teeth or body tissue. Disclosed
also is structure for holding the carrier and connecting it to a
D.C. voltage source, thereby to form apparatus which utilizes a
small electric current to impel the medication into the patient's
teeth or body tissue. The apparatus may be constructed to be
portable, battery powered and for operation by the patient
himself.
Inventors: |
Porter; William I.
(Albuquerque, NM), Hindsley; Frank W. (Albuquerque, NM),
Hesse; James E. (Albuquerque, NM) |
Assignee: |
Porter; William A.
(Albuquerque, NM)
|
Family
ID: |
22045309 |
Appl.
No.: |
05/062,860 |
Filed: |
August 11, 1970 |
Current U.S.
Class: |
604/20 |
Current CPC
Class: |
A61N
1/303 (20130101); A61M 35/006 (20130101); A61M
19/00 (20130101) |
Current International
Class: |
A61F
13/40 (20060101); A61M 19/00 (20060101); A61N
1/30 (20060101); A61m 005/00 () |
Field of
Search: |
;128/172.1,212,404-409,399-403 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Gaudet; Richard A.
Assistant Examiner: Dunne; G. F.
Claims
We claim:
1. Portable apparatus for impelling medication into a user's teeth
or body tissue, comprising:
a body formed of electrically non-conductive material including
narrowing end portions and an intermediate channeled portion;
said end portions having aligned bores, alined extending from the
channeled portion through the outer end of the narrowing
portion;
a tubular terminal in each bore having its outer end terminating
within the bore at the outer end thereof and having a conductive
contact portion at its inner end;
means providing a D.C. voltage source disposed in said channel
portion in contact with the contact portion of each terminal;
a moist medication impregnated carrier fitted within one said
terminal with its inner end contacting the contact portion of the
associated terminal and its outer end extending beyond the outer
end of said terminal for manipulative contact with the teeth or
tissue of a user;
a tubular member of electrically conductive material slidable over
one narrowing end portion into arresting engagement with the other
narrowing portion for enclosing the channeled portion and voltage
source and adapted to be held in the hand of a user during
treatment;
and a conductive insert in conductive connection with said tubular
member and normally held in the other said terminal, whereby a
closed electrical circuit is formed from one to the other pole of
said voltage source for impelling moist medication into a selected
portion of a user's body tissue or teeth during said manipulative
contact.
2. The invention recited in claim 1, wherein said D.C. voltage
source means is a dry cell flashlight type battery.
3. The invention recited in claim 1, wherein said medication
carrier is impregnated with a moist medication which is
electrically conductive and which transfers to a user's body tissue
or teeth upon the flow of electric current therethrough.
4. The invention recited in claim 1, wherein said medication
carrier is impregnated with a moist medication containing
negatively charged fluoride ions and the negative and positive
poles of said D.C. voltage source means are connected to the
respective terminals.
5. Portable apparatus for impelling medication into a user's teeth
or body tissue, comprising:
a body formed of electrically non-conductive material, including
end portions and an intermediate channeled portion joined to the
end portions;
said end portions having bores extending from the channeled portion
through the outer end of the end portion;
a tubular terminal in each bore having its outer end terminating
within the bore at the outer end thereof and having a conductive
contact portion at its inner end;
a dry cell battery disposed in said channel portion with its
opposite electrical poles contacting the contact portions of the
respective terminals;
a carrier impregnated with preselected ions fitted in one said
terminal with an exterior portion adapted to be held against the
tissue or teeth or a user; and
electrical conducting means adapted to be held by a user and
connected to the second said terminal whereby a closed electrical
circuit is formed from one to the other pole of said battery
connected between said terminals for impelling ions into a user's
teeth or tissue whenever said impregnated carrier is held in
contact with the user's teeth or tissue and said second terminal is
electrically connected to the user's body holding said
apparatus,
one of said electrical terminals having a hollow cylindrical
portion and said electrical conducting means including a cover
portion, a plug and a chain, said chain connecting said plug to
said cover portion and said cover portion, chain and plug being
electrically conductive, said plug being insertable in said
terminal whereby to electrically connect said terminal with a
portion of a user's body touching said cover, chain or plug.
6. The invention recited in claim 5, wherein said carrier is
impregnated with charged ions selected from the group consisting of
fluoride ions, chloride ions, iodide ions, bromide ions, zinc ions
and strontium ions.
Description
The present invention relates to apparatus for transferring
medication to teeth or body tissue.
Selected medications are useful for desensitizing teeth and gums;
decolorizing pigmented or tattooed skin areas; removing warts and
moles; and treating lesions, such as cold sores, fever blisters and
canker sores. Such medications may be ionic containing fluoride,
chloride, iodide, bromide, zinc, strontium or other ions; may be
subject to molecular mobility upon the passage of current
therethrough; or may be molecularly mobile without the application
of current. The treatment of body tissue, for example, with such
ionic or molecularly mobile medications has the inherent advantage
that the transfer of the medicaments into the tissue being treated
generally has no adverse effects on the tissue treated, such as
scarring or unwanted tissue discoloration.
In dental applications, for example, it is desirable to apply
positive or negative desensitizing ions, such as strontium or
fluoride ions, to sensitive tooth surfaces. In this manner, tooth
sensitivity may be markedly reduced and even eliminated. The
effectiveness of such treatments has primarily depended upon the
ion activity of the ion concentrations at the time of application
of the ion concentrations to the teeth. One known manner to
increase ion activity, for example in a fluoride concentration, has
been to add moisture to the fluoride concentration. It is important
that the addition of the moisture be at the time of application of
the fluoride concentration to the teeth to be treated since it has
been found that concentrations of fluoride ions which have been
premoistened or premixed in solution show a marked decline in ion
action in those cases where the fluoride ions were not used at the
time of moistening or being placed in solution.
It is, accordingly, an object of the present invention to provide
novel apparatus for applying selected ions to teeth or body tissue
which includes a porous portion for holding ionic medications so
that such medications may be moistened to increase their ion
activity just prior to application to teeth or body tissue to be
treated.
It is, also, an object of the present invention to provide novel
apparatus for applying selected ions to teeth or body tissue which,
while permitting such ions to be moistened to increase their
activity, is characterized by utilizing electromotive force, i.e.,
electric current, to further enhance ion activity.
It is, further, an object of the present invention to provide novel
apparatus, as set forth, for applying selected ions to teeth or
body tissue which is adapted for operation by a patient himself and
thus is suitable for home use.
It is, additionally, an object of the present invention to provide
novel apparatus, as set forth, for applying selected ions to teeth
or body tissue which is characterized by being adapted to receive
an insertable ion impregnated carrier or cartridge.
It is still another object of the present invention to provide
novel apparatus, as set forth, for applying selected ions to teeth
or body tissue which is characterized by being battery powered,
convenient to use, and relatively easy and inexpensive to
manufacture.
It is yet another object of the present invention to provide novel
apparatus for applying selected ions to teeth or body tissue which
utilizes a relatively small electric current for applying the ions
to the teeth or body tissue.
It is also an object of the present invention to provide novel
apparatus for applying selected medications to teeth or body tissue
which is characterized by having structure for receiving and
holding medication impregnated material and which may selectively
employ an electrical means for applying the medications.
Additional objects of the present invention reside in the specific
construction of the exemplary apparatus hereinafter particularly
described in the specification and shown in the several
drawings.
In accomplishing these and other objects, there has been provided
in accordance with the present invention apparatus including a D.C.
power source means, such as a dry cell flashlight type battery.
Structure is included for receiving and holding a porous medication
impregnated material or carrier means so that the impregnated
carrier may be applied to a patient's teeth or body tissue by the
patient himself. The carrier may be impregnated with an ionic
medication containing selected ions and is preferably moistened to
increase ion activity at the time of application to the patient's
teeth or body tissue. First and second terminal means are included
in the apparatus which, respectively, connect the appropriate
battery pole to the impregnated carrier and contacts the other
battery pole. Conducting means are included for connecting the
second terminal to the patient's body so that whenever a patient
applies the medication impregnated material to his teeth or body
tissue a closed electrical circuit is formed. A small electric
current then flows from the first terminal which is in contact with
one battery pole through the impregnated carrier, the patient's
teeth and/or body, and back to the battery through the conducting
means and second terminal. The flow of current through the
impregnated carrier occurs in the case of an ion impregnated
carrier by the repulsion of the ions from the one battery pole into
the patient's teeth being treated. Thus, a novel apparatus is
provided which utilizes an electromotive force, i.e., electric
current, for applying selected medications to teeth body
tissue.
A better understanding of the present invention may be had from the
following detailed description when read in conjunction with the
accompanying drawings, in which:
FIG. 1 is a side sectional view of an apparatus particularly suited
for applying desensitizing ions to teeth or gum tissue in
accordance with the present invention;
FIG. 2 is a side sectional view of the apparatus of FIG. 1 showing
its outer cover portion partially removed;
FIG. 3 is a perspective view of the apparatus of FIG. 1 with its
outer cover portion removed and showing a battery being inserted
therein;
FIG. 4 is a perspective view of the cover portion of the apparatus
of FIG. 1;
FIG. 5 is a side exploded view of an alternate embodiment of
apparatus for applying selected medications to teeth or body tissue
in accordance with the present invention; and
FIG. 6 illustrates the apparatus of FIG. 5 assembled for use in
situ in the hand of a patient.
Referring to the drawings in more detail, there is shown in FIGS.
1-4 a dental apparatus generally designated by the numeral 1. The
apparatus 1 includes a body portion 2 and a cover portion 3, as
shown in FIGS. 3 and 4, respectively. For reasons hereinafter
explained, the body portion 2 is made to be electrically
nonconductive being made of a material such as a nonconductive
plastic while the cover portion 3 is made to be electrically
conductive being made preferably of metal, such as chrome.
The body portion 2 has end means or pieces 4 and 5 connected by
intermediate structure 6. The end pieces 4 and 5 are preferably at
least in part conically shaped to form tips 7 and 8, respectively,
remote from the intermediate structure 6. The intermediate
structure 6 is preferably in the form of a half-cylinder and is
constructed for receiving a standard dry cell flashlight type
battery 9, as shown in FIG. 3. The structure 6 supports the battery
9 so that the battery extends longitudinally between the end pieces
4 and 5.
The metal cover portion 3 is preferably cylindrical and is designed
for fitting around the half-cylindrical structure 6 and a battery 9
therein, thereby to hold the battery 9 in the apparatus 1. The
conical end piece 4 has a disc-like support means 4a formed on its
base 4b. The disc-like support 4a has a diameter slightly smaller
than the diameter of the base 4b so that the cylindrical cover 3
may fit flush against the base 4b of the end piece 4 when slid over
the disc-like support 4a. It is noted that the outer diameter of
the cylindrical cover 3 is made substantially equal to the diameter
of the base 4b so that an essentially smooth interface is formed
between the cover 3 and the end piece 4. The inner diameter of the
cover 3 is slightly larger than the diameter of the disc-like
support 4a so the cover 3 may be slid thereon.
In order to permit the cylindrical cover 3 to be slid onto the
apparatus body 2, the portion of the conical end piece 5 from a
region designated 5a on its surface to its flat base 5b is shaped
to have a cylindrical surface of substantially the same diameter as
the disc-like support 4a. Thereby, since the inside diameter of the
cover 3 is designed to be just large enough to slide over the
disc-like support 4a, the cylindrical cover 3 therefore clears and
may be slid over the cylindrical portion of the end piece 5 in the
manner shown in FIG. 2 until the cover 3 abuts against the base 4b
of the end piece 4. The cover 3 is designed to have a flat end
which is perpendicular to its outer cylindrical surface for
abutting against the base 4b and to have a length which extends
from the base 4b to the region 5a on the end piece 5. The end of
the cover 3 adjacent the region 5a is preferably chamfered to form
a smooth interface with the conical surface of the end piece 5, as
shown in FIG. 1.
Inserted in the plastic end pieces 4 and 5, respectively, are
electrical terminal means 15 and 16. The terminals 15 and 16 are
inserted, respectively, in hollow portions of the end pieces 4, 5
which extend axially from the bases 4b, 5b to the tips 7, 8. The
terminals 15 and 16 are each preferably hollow metal cylinders
having metal contact portions 17 and 18, respectively, formed on
their inner ends for contacting the electrical poles of a battery
supported by the intermediate structure 6. Each of the terminals 15
and 16 are preferably designed not to protrude beyond the tips 7
and 8 of the ends 4 and 5, respectively, when inserted, thereby to
prevent accidental grounding of the terminals 15 and 16. As shown
in FIGS. 1 and 2, the cylindrical portion of the terminal 15
extends from the contact 17 to very near the tip 7. This hollow
cylindrical portion of the terminal 15 provides holding means for a
vehicle or carrier 19, shown in FIG. 1, which is inserted in the
terminal 15. The carrier 19 may be a porous substance, such as
wood, cellulose, paper, man made or natural fibers or compressed
and woven material. The carrier 19 is preferably cylindrically
shaped in the form of a cartridge and is impregnated with selected
ions, such as desensitizing ions. The material or carrier 19 may be
strontium chloride impregnated and it is essential that the
impregnated porous material 19 be inserted so as to firmly contact
the terminal 15 while having its pointed tip 20 protruding from the
tip 7 so that the tip 20 may be applied directly to teeth or gum
tissue to be treated and desensitized. The contact portion 17 of
the terminal 15 extends beyond the surface of the disc-like support
4a so as to be particularly suited for contacting the positive pole
of a conventional dry cell flashlight type battery.
The contact portion 18 of the terminal 16 is preferably embedded in
the base of the end piece 5 and has a metal spring portion 21
connected therewith so as to be specifically suited for contacting
the negative pole of a conventional dry cell flashlight type
battery. The cylindrical portion of the terminal 16 extends from
the contact 18 to near the tip 8 of the end piece 5 and is designed
for receiving a plug 25. The plug 25 is made of a conductive
material, such as a metal, and is long enough so that when inserted
in the tip 8, the plug 25 contacts the cylindrical portion of the
terminal 16. The plug 25 is also attached to one end of a
conductive chain 26. The chain 26 may be made of metallic material
and has its other end connected to the metal cover 3. Thus, a
captive plug arrangement is formed with the plug 25 being
permanently attached to the cover 3 so as to prevent loss and being
electrically connected to the cover 3 by the chain 26 for reasons
hereinafter explained.
To prepare the apparatus 1 for operation, the plug 25 is removed
from the apparatus tip 8 and the cylindrical cover 3 is slid off
the apparatus body 2, as shown in FIG. 2. A standard dry cell
flashlight type battery 9 is inserted in the body structure 6 with
the positive and negative electrical poles of the battery 9
oriented to contact the terminal contacts 17 and 18, respectively,
as shown in FIG. 3. The metal cover 3 is replaced on the body 2 by
sliding it over the end piece 5 to position the cover 3, as shown
in FIG. 1, with its non-chamfered edge abutting the base 4b of the
end piece 4. With the cover 3 positioned on the apparatus body 2,
the plug 25 on the chain 26 is inserted in the tip 8 so that the
metal plug 25 makes electrical contact with the cylindrical portion
of the electrical terminal 16. A cartridge shaped carrier 19
impregnated with desensitizing or other selected ions is next
inserted in the tip 7 so as to be held therein by the cylindrical
portion of the terminal 15 and protrude from the tip 7, as shown in
FIG. 1. For purposes of illustration, a dry strontium chloride
impregnated carrier 19 is inserted in the tip 7. The carrier 19 is
thus impregnated with desensitizing positive strontium ions.
In operation, the apparatus 1 is used as an ionizer to impel the
positively charged strontium ions from the ion-impregnated carrier
or vehicle 19 into a patient's teeth or gums. Prior to applying the
ion-impregnated carrier 19 to the patient, the previously dry
carrier 19 is moistened, for example, by dipping the protruding tip
20 of the porous carrier 19 into a glass of water, thereby to bring
the strontium ions to a peak of activity. No current flows through
the apparatus 1 prior to applying the carrier 19 to the patient's
teeth or gum tissue since no closed electrical circuit is formed in
the apparatus 1 from one electrical pole of the battery 9 to its
other electrical pole. No closed electrical circuit is formed
because the end pieces 4 and 5 and the intermediate body structure
6 are all made of non-conductive plastic, thereby to electrically
isolate the electrical terminals 15 and 16 from each other.
In order for a patient to apply strontium ions to his teeth, the
patient takes the apparatus 1 in his hand by gripping the metal
cover 3 and applies the tip 20 of strontium ion-impregnated carrier
19 protruding from the apparatus tip 7 to his teeth or gum tissue.
Upon contact of the carrier 19 with the patient's teeth or body
tissue, a closed electrical circuit is made through the patient's
teeth and/or body between the positive and negative electrical
poles of the battery 9. The closed electrical circuit through which
current from the battery 9 flows is from the positive pole of the
battery 9 through, sequentially, the terminal contact 17, the
cylindrical portion of the terminal 15, the ion-impregnated porous
carrier 19, the patient's teeth or gum tissue to which the carrier
19 is applied, the patient's body and in particular the patient's
hand gripping the metal cover 3, the conductive cover 3, the
conductive chain 26, the conductive plug 25, the cylindrical
portion of the terminal 16, and the terminal contact 18 with its
associated spring 21 to the negative terminal of the battery 9.
This current which flows through the patient's teeth or gums and
body is a minimal electrical current and provides the electromotive
force for impelling the strontium ions in the carrier 19 into the
patient's teeth or gum tissue.
The positively charged strontium ions in the carrier 19 are
repelled by the positive pole of the battery 9 through the carrier
19 into the portion of the patient's teeth or gums contacting the
carrier 19. It is by this strontium ion flow that current flows
through the porous carrier 19 and desensitizing ions are impelled
into the patient's teeth or gums, thereby to treat and desensitize
the patient's teeth or gum tissue. It is noted that since the
strontium ions are positive that the positive pole of the battery 9
is connected to the carrier 19 through the terminal means 15,
thereby to repel ions into the patient's teeth or gum tissue to be
treated. If it were desirable, however, to impel negative ions,
such as fluoride ions, into a patient's teeth, the apparatus 1 may
be arranged to connect the negative terminal of the battery 9 to
the ion-impregnated porous carrier 19.
Referring now to FIGS. 5 and 6, there is shown therein a simplified
embodiment of apparatus for transferring ions from selected
medications into teeth or body tissue being treated. The apparatus
is generally designated by the numeral 101 and includes
non-conductive end pieces 103 and 103 which are preferably made of
plastic and have hollow axes. Hollow metal inserts 104 and 105,
shown in dotted lines, are mounted in hollow axes of the plastic
end pieces 102 and 103, respectively. The metal inserts 104 and 105
provide terminal means for contacting the terminals of a battery
106. The metal insert 104 protrudes slightly from the inner end of
the end piece 102 for contacting the positive pole of the battery
106 while a metal spring 107 is connected on the inner end of the
end piece 103 with the metal insert 105 for contacting the negative
pole of the battery 106.
A conductive cover portion 108 is shown positioned between the end
pieces 102 and 103 for holding the battery 106. The cover portion
108 is preferably cylindrically shaped, made of chrome and holds
the poles of battery 106 in electrical contact with the terminals
provided by the metal inserts 104 and 105. The ends of the cover
108 and the inner ends 102a and 103a of the end pieces 102 and 103
are arranged to mate in a screw-on relationship with each other so
as to hold the battery 106 in position within the cover 108.
Mounted on the cover 108 is a conductive chain 109. The chain 109
has a conductive plug 110, preferably made of metal, attached to
its end remote from the cover 108. The plug 110 has a rod-like
portion which may be inserted into either of the hollow axes of the
end pieces 102 or 103 to contact, respectively, the metal inserts
104 or 105. Thereby, the interconnected cover 108, chain 109 and
plug 110 may be selectively connected with the positive or negative
poles of the battery 106.
Shown positioned near the end piece 102 in FIG. 5 is a vehicle or
carrier 111 for carrying a selected medication. The carrier 111 is
porous, is preferably made of wood, and is impregnated with a
selected medication carrying the specific ions with which it is
desired to treat the patient's body tissue or teeth. If the
medication carries positive ions, the ion impregnated carrier 111
is inserted in the metal insert 104 mounted in the end piece 102
and the plug 110 is inserted in the metal insert 105 in the end
piece 103. If, on the other hand, the impregnated carrier 111
carries negative ions then the carrier 111 is inserted in the metal
insert 105 and the plug 110 in the metal insert 104.
With the battery 106 in place and the carrier 119 and plug 110
appropriately inserted in the end pieces 102 and 103, the assembled
apparatus 101 is ready for use. A patient then grips the apparatus,
as shown in FIG. 6, in his hand 112. While the medicament carried
by the impregnated carrier 111 may be in a gel or solution form, it
is preferably originally in a dry state in order that its ion
activity does not decline before use. Prior to applying the carrier
111 to his teeth or body tissue to be treated, the patient first
moistens dry medication carried by the porous carrier 111, for
example, by dipping the tip of the carrier 111 into water or other
suitable moistening solution. Once the medication has been
moistened, the ion activity is at its peak and the patient may
apply the tip of the carrier 111 to the selected part of his body
to be treated. Upon contact of the carrier 111 with the patient's
body, a current flows from one pole of the battery 106 through the
porous carrier 111, the patient's body including his hand 112 and
back to the other pole of the battery 106 through the plug 110,
thereby to transfer and transmit the selected ions from the
medication in the carrier 111 into the patient's body tissue or
teeth being treated. This procedure of introducing ionic medication
into the superficial body tissues or teeth surfaces by use of a
direct current is called iontophoresis. The selected ions
introduced may be fluoride, chloride, iodide, bromide, zinc,
strontium, metallic, non-metallic, organic and other ions.
Various modifications may be made in the apparatus 1 and 101 in
accordance with the spirit of the present invention. For example,
instead of using a standard dry cell flashlight type battery, other
conventional D.C. power sources of appropriate voltages may be
employed. These conventional D.C. power sources may be arranged to
be carried by the apparatus 1 and 101 or may be separate therefrom
and electrically connected thereto. Further, other equivalent types
of means may be used for holding the ion-impregnated carrier and
connecting it to a terminal of the D.C. power source. Additionally,
an apparatus in accordance with the present invention may be
electrically connected to a patient's body through means other than
hand contact with the apparatus cover, thereby to permit ions to be
applied to a patient'teeth or body tissue by a third party instead
of the patient himself.
The dry cell battery used in an exemplary apparatus constructed was
9 volts. However, depending on the tissue or teeth to be treated,
it may be desirable to supply more or less direct current than the
current which is supplied by a 9 volt battery. Therefore, a battery
with a higher voltage could be connected into the apparatus through
an ammeter and a current control device, such as a rheostat, in
order to control the direct current flowing from the apparatus. In
connection with the apparatus 1 and 101, it is noted that the
medication impregnated carriers 19 and 111, respectively, could be
inserted in the tip of either end of these apparatus, as
appropriate, according to the polarity of the ions carried by the
carriers 19 and 111. Therefore, to aid a patient in inserting the
carriers 19 and 111 in the correct end of the apparatus 1 and 101,
the tips of the apparatus may be color coded or otherwise marked to
indicate whether they are associated with a positive or negative
battery pole. The carriers 19 and 111 would then also be marked or
colored coded to indicate the end of the apparatus 1 or 101 into
which they should be inserted. Also, a device for switching the
electrical polarity of the tips of the apparatus could be
incorporated in the apparatus in conjunction with the D.C. voltage
source therein. It may also be desirable to incorporate into the
exemplary apparatus vibrator means for selectively vibrating body
tissues while medicament is being transferred thereto from the
apparatus.
Further, it is noted that the apparatus 1 and 101 may be utilized
for applying certain nonionic medications to body tissue, such as
medications that show as appreciable molecular mobility or dipole
movement when influenced by an electrical field or current. Also,
in certain situations it may be desirable to use the porous
carriers 19 and 111 alone, i.e., without an electric current, for
transferring medications to body tissue. The medications may also
be colored with nonactive vegetable dyes so that the amount of
medication used from a carrier may be determined by the color of
the medication carrier, the dye fading as the medication in the
carrier is exhausted. The porous carriers 19 and 111 which serve as
vehicles for carrying the selected medications are normally made of
inexpensive materials, such as wood, so as to be expendable after
use.
Thus, there has been provided a novel apparatus which utilizes
electromotive force, i.e., an electric current, for applying
selected medications to teeth or body tissue. The apparatus may be
portable, battery operated and adapted for home use by a patient
himself. Additionally, the apparatus may be easily and
inexpensively manufactured and constructed for use with insertable
expendable cartridges or carriers impregnated with selected
medicaments.
* * * * *