WO2008114243A1 - Medical apparatus for administering heat treatments particularly usefeul in dental root canal treatments - Google Patents

Medical apparatus for administering heat treatments particularly usefeul in dental root canal treatments Download PDF

Info

Publication number
WO2008114243A1
WO2008114243A1 PCT/IL2008/000333 IL2008000333W WO2008114243A1 WO 2008114243 A1 WO2008114243 A1 WO 2008114243A1 IL 2008000333 W IL2008000333 W IL 2008000333W WO 2008114243 A1 WO2008114243 A1 WO 2008114243A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
pulse generator
heat treatment
body tissue
electrical
Prior art date
Application number
PCT/IL2008/000333
Other languages
French (fr)
Inventor
Arik Becker
Original Assignee
Medicn.R.G. Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medicn.R.G. Ltd. filed Critical Medicn.R.G. Ltd.
Publication of WO2008114243A1 publication Critical patent/WO2008114243A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/40—Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00022—Sensing or detecting at the treatment site
    • A61B2017/00084—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00696—Controlled or regulated parameters
    • A61B2018/00702—Power or energy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00773—Sensed parameters
    • A61B2018/00791—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0813—Accessories designed for easy sterilising, i.e. re-usable

Definitions

  • the present invention relates to medical apparatus and methods for administering heat treatments to a preselected body tissue.
  • the invention is particularly useful in administering a dental root canal treatment, and is therefore described below with respect to such application, but it will be appreciated that the invention could also be advantageously used in many other applications.
  • a broad object of the present invention is to provide medical apparatus and methods for administering a predetermined heat treatment to a selected body tissue in a manner which protects the body tissue from excessive heating.
  • a more particular object of the present invention is to provide a dental apparatus and method particularly useful for the heat treatment of teeth root canals.
  • medical apparatus for administering a predetermined heat treatment to a preselected body tissue, comprising: an electrode for contacting the body tissue to receive the heat treatment; and a pulse generator electrically connected to the electrode for applying thereto an electrical pulse of sufficient energy for administering the heat treatment when the electrode is in contact with the body tissue; characterized in that the apparatus further comprises a heat— sensitive device which automatically interrupts the electrical connection upon the application to the electrode of sufficient energy by the pulse generator to administer the predetermined heat treatment, and to thereby protect the body tissue from excessive heating.
  • the heat- sensitive device is an electrical fuse constructed integrally with the electrode.
  • the electrode is in the form of an electrode unit including an exposed electrically-conductive section at one end for contacting the body tissue, an electrical connector plug at the opposite end for insertion into a socket in the pulse generator, and the electrical fuse between the electrically— conductive section and the connector plug.
  • the electrical fuse, and its electrical connections to the electrically-conductive section and connector plug, are covered by an insulating jacket to permit manually handling the electrode unit.
  • the apparatus includes a plurality of such electrode units having fuses of different values selectively insertable into the socket of the pulse generator according to the respective heat treatment to be administered.
  • a handpiece connectable to a pulse generator for administering a predetermined medical heat treatment to a preselected body tissue
  • the handpiece comprising: an electrode electrically connectable to the pulse generator and having a section constructed for engaging the body tissue to which the heat treatment is to be administered; and a heat-sensitive device which automatically interrupts the electrical connection of the electrode to the pulse generator upon the application to the electrode of sufficient energy by the pulse generator to administer the predetermined heat treatment, and to thereby protect the body tissue from excessive heating.
  • a method of administering a predetermined heat treatment to a preselected body tissue comprising: contacting the body tissue with an electrode connected to a pulse generator; while the electrode is in contact with the body tissue, activating the pulse generator to apply to the electrode an electrical pulse of sufficient energy to administer the predetermined heat treatment; and automatically interrupting, by a heat-sensitive fuse in the electrical connection from the pulse generator to the electrode, the electrical connection to the electrode upon the application thereto of sufficient electrical energy from the pulse generator to administer the predetermined heat treatment, to thereby protect the body tissue from excessive heating.
  • the invention provides a number of advantages when used for administering predetermined heat treatments to preselected body tissues, such as the dental root canal treatment briefly described above.
  • the invention better assures that sufficient energy will be applied to the electrode to administer the predetermined heat treatment in a manner which protects the body tissue from excessive heating.
  • each electrode unit used in the heat treatment would be sterilized and precisely formed for the respective root canal, it precludes the possibility of reusing an electrode unit which may have become infected or deformed from a prior use.
  • Fig. 1 illustrates one form of medical apparatus constructed in accordance with the present invention for administering a predetermined heat treatment to a preselected body tissue, in this case a root canal treatment as described in the above- cited US Patent 6,482,008;
  • Fig. 2 is a sectional view of the dental handpiece in the apparatus of Fig. 1;
  • Fig. 3 is an enlarged sectional view of the socket end of the dental handpiece of Fig. 2, particularly illustrating the electrode unit receivable within the handpiece for insertion into the tooth root canal;
  • Fig. 4 is a view corresponding to that of Fig. 3, but more particularly illustrating the construction of the electrode unit;
  • Fig. 5 illustrates a plurality of electrode units having fuses of different values which may be included in a kit and which are selectively insertable into the socket of the handpiece according to respective heat treatment to be administered.
  • the present invention relates to apparatus and methods for administering predetermined heat treatments to a preselected body tissue in a manner to protect the body tissue from excessive heating.
  • the invention is described below with respect to the dental apparatus and method for administering heat treatments to root canals in teeth, as described in the above-cited US Patent 6,482,008, the contents of which are expressly incorporated herein by reference.
  • the apparatus illustrated in Fig. 1 includes a pulse generated, generally designated 10, constituted of a housing 20 which includes the electrical power supply and electronic circuitry for generating high frequency electrical pulses, and a handpiece 30 carrying an electrode unit 40 for applying the high frequency electrical pulses to the interior of the tooth root canal being treated.
  • housing 20 includes an electrical output line 21 connected to handpiece 30 for applying the high frequency electrical pulses to the electrode unit 40.
  • housing unit 20 includes another line 22 connected to a lip clip 23 to be clipped to the lip of the subject receiving the treatment, and a further line 24 connected to a bare handlebar 25 to be gripped by the person receiving the treatment, all as described more particularly in the above-cited US Patent 6,482,008.
  • electrode unit 40 is inserted into the root canal of a tooth being treated for contacting body tissue within the root canal to receive the high frequency electrical pulse from the pulse generator.
  • the present invention relates particularly to the dental handpiece 30, and more particularly to the construction of the electrode unit 40.
  • electrode unit 40 and the respective part of handpiece 30 for receiving it is more particularly illustrated in Figs. 2-4.
  • handpiece 30 is made of insulating material and of a configuration for convenient grasping by the dentist. It includes a push-button 31 depressible by the dentist when the high frequency pulse is to be applied to the patient after the electrode unit 40 has been inserted into the root canal of the tooth being treated. Push-button 31 is connected by electrical conductor 32 to the output line 21 of pulse generator unit 20, and by electrical conductor 33 to an electrical contact 34 (Figs. 3 and 4) within socket 35 to receive the electrode unit 40.
  • electrode unit 40 includes an electrical connector plug 41 at one end for insertion into socket 35 of handpiece 30 to make electrical contact with contact 34 of the handpiece, and an exposed electrically- conductive electrode 42 at the opposite end for insertion into the tooth root canal. Electrode unit 40 further includes an electrical fuse 43 connecting electrode 42 to connector plug 41. It further includes an insulating jacket 44 covering fuse 43, together with electrical connections to electrode 42 and connector plug 41, to facilitate manual handling of the electrode unit.
  • the angle between electrode 42 and connector plug 41 is an obtuse angle, preferably about 110°, to facilitate manipulation of electrode 42 by the dentist.
  • Fuse 43 is designed to have a value to automatically interrupt the electrical connection from connector plug 41 to the electrode 42 when sufficient energy has been supplied by the pulse generator to the electrode to produce the desired heat treatment, and thereby to protect the body tissue from excessive heating.
  • housing unit 20 of the pulse generator 10 includes manually-selectable controls which enable the operator to select different values of electrical energy to be supplied to the electrode, according to the nature of the heat treatment to be applied, and particularly according to the type of tooth to be treated.
  • the dentist would therefore be supplied with a plurality of electrode units 40, e.g., in a kit form as shown in Fig. 5, each having fuses of different values and selectively insertable into the socket 35 of handpiece 30, according to the respective heat treatment to be administered, thereby not only better protecting the patient from excessive heating, but also better assuring that a previously— used electrode unit, which may have become infected or deformed in one use, will not be re-used.
  • the dentist would first determine the heat treatment to be applied, and would then select the appropriate electrode unit 40 and insert it into socket 35 of the handpiece 30, according to the selected heat treatment. Since the value of the fuse 43 in the selected electrode unit would correspond to the heat treatment to be applied, the fuse would automatically interrupt the application of electrical energy to electrode 42 as soon as the predetermined amount of electrical energy has been supplied to the electrode, thereby protecting the patient from excessive heating, as well as from a re— use of an electrode unit which may have become infected or deformed by a prior use.
  • each electrode unit 40 would be marked according to the value of its respective fuse 43 appropriate for the respective heat treatment to be applied.

Abstract

Medical apparatus for administering a predetermined heat treatment to a preselected body tissue includes an electrode unit for contacting the body tissue to receive the treatment, a pulse generator for applying an electrical pulse of sufficient energy for administering the heat treatment, and a heat-sensitive device which automatically interrupts the electrical connection upon the application of sufficient energy to administer the predetermined heat treatment to thereby protect the body tissue from excessive heating and from re-use of an infected or deformed electrode unit.

Description

MEDICAL APPARATUS FOR ADMINISTERING HEAT TREATMENTS PARTICULARLY USEFEUL IN
DENTAL ROOT CANAL TREATMENTS
FIELD AND BACKGROUND OF THE INVENTION
The present invention relates to medical apparatus and methods for administering heat treatments to a preselected body tissue. The invention is particularly useful in administering a dental root canal treatment, and is therefore described below with respect to such application, but it will be appreciated that the invention could also be advantageously used in many other applications.
Many medical treatments involve the application of heat to a preselected body tissue. One example of such a medical treatment involves the application of heat to the root canal of a patient's tooth, as described for example in US Patent 6,482,008. This patent describes a method and apparatus for devitalizing a root canal of a tooth by electrical pulses of high frequency and power values preselected according to the type of tooth being treated. As described in that patent, the electrical pulses disintegrate the vascular nerve matter, coagulate the part of the vascular bundle that is not destroyed, and sterilize or disinfect the root canal. The electrical pulse is applied by a needle-type electrode introduced into the root canal, and the electrical energy applied can be preselected by depressing the appropriate button for the type of tooth, e.g., incisor, canine, premolar or molar.
In such a root canal heat treatment, it is necessary to supply sufficient electrical energy to the electrode to produce the desired heat treatment, but it is critical that no more be applied so as to protect the body tissue from excess heating. Similar problems are involved in other medical heat treatments, for example in ablation treatments to remove selected tissue, in electrocutting treatments, etc.
OBJECTS AND BRIEF SUMMARY OF THE PRESENT INVENTION
A broad object of the present invention is to provide medical apparatus and methods for administering a predetermined heat treatment to a selected body tissue in a manner which protects the body tissue from excessive heating. A more particular object of the present invention is to provide a dental apparatus and method particularly useful for the heat treatment of teeth root canals. According to one aspect of the present invention, there is provided medical apparatus for administering a predetermined heat treatment to a preselected body tissue, comprising: an electrode for contacting the body tissue to receive the heat treatment; and a pulse generator electrically connected to the electrode for applying thereto an electrical pulse of sufficient energy for administering the heat treatment when the electrode is in contact with the body tissue; characterized in that the apparatus further comprises a heat— sensitive device which automatically interrupts the electrical connection upon the application to the electrode of sufficient energy by the pulse generator to administer the predetermined heat treatment, and to thereby protect the body tissue from excessive heating.
According to further features in the described preferred embodiment, the heat- sensitive device is an electrical fuse constructed integrally with the electrode. More particularly, the electrode is in the form of an electrode unit including an exposed electrically-conductive section at one end for contacting the body tissue, an electrical connector plug at the opposite end for insertion into a socket in the pulse generator, and the electrical fuse between the electrically— conductive section and the connector plug. The electrical fuse, and its electrical connections to the electrically-conductive section and connector plug, are covered by an insulating jacket to permit manually handling the electrode unit. Preferably, the apparatus includes a plurality of such electrode units having fuses of different values selectively insertable into the socket of the pulse generator according to the respective heat treatment to be administered.
According to another aspect of the present invention, there is provided a handpiece connectable to a pulse generator for administering a predetermined medical heat treatment to a preselected body tissue, the handpiece comprising: an electrode electrically connectable to the pulse generator and having a section constructed for engaging the body tissue to which the heat treatment is to be administered; and a heat-sensitive device which automatically interrupts the electrical connection of the electrode to the pulse generator upon the application to the electrode of sufficient energy by the pulse generator to administer the predetermined heat treatment, and to thereby protect the body tissue from excessive heating.
According to yet a further aspect of the present invention, there is provided a method of administering a predetermined heat treatment to a preselected body tissue, comprising: contacting the body tissue with an electrode connected to a pulse generator; while the electrode is in contact with the body tissue, activating the pulse generator to apply to the electrode an electrical pulse of sufficient energy to administer the predetermined heat treatment; and automatically interrupting, by a heat-sensitive fuse in the electrical connection from the pulse generator to the electrode, the electrical connection to the electrode upon the application thereto of sufficient electrical energy from the pulse generator to administer the predetermined heat treatment, to thereby protect the body tissue from excessive heating.
As will be described more particularly below, the invention provides a number of advantages when used for administering predetermined heat treatments to preselected body tissues, such as the dental root canal treatment briefly described above. Thus, the invention better assures that sufficient energy will be applied to the electrode to administer the predetermined heat treatment in a manner which protects the body tissue from excessive heating. In addition, since each electrode unit used in the heat treatment would be sterilized and precisely formed for the respective root canal, it precludes the possibility of reusing an electrode unit which may have become infected or deformed from a prior use.
Further features and advantages of the invention will be apparent from the description below.
BRIEF DESCRIPTION OF THE DRAWINGS The invention is herein described, by way of example only, with reference to the accompanying drawings, wherein:
Fig. 1 illustrates one form of medical apparatus constructed in accordance with the present invention for administering a predetermined heat treatment to a preselected body tissue, in this case a root canal treatment as described in the above- cited US Patent 6,482,008;
Fig. 2 is a sectional view of the dental handpiece in the apparatus of Fig. 1; Fig. 3 is an enlarged sectional view of the socket end of the dental handpiece of Fig. 2, particularly illustrating the electrode unit receivable within the handpiece for insertion into the tooth root canal; Fig. 4 is a view corresponding to that of Fig. 3, but more particularly illustrating the construction of the electrode unit; and Fig. 5 illustrates a plurality of electrode units having fuses of different values which may be included in a kit and which are selectively insertable into the socket of the handpiece according to respective heat treatment to be administered.
It is to be understood that the foregoing drawings, and the description below, are provided primarily for purposes of facilitating understanding the conceptual aspects of the invention and possible embodiments thereof, including what is presently considered to be a preferred embodiment. In the interest of clarity and brevity, no attempt is made to provide more details than necessary to enable one skilled in the art, using routine skill and design, to understand and practice the described invention. It is to be further understood that the embodiments described are for purposes of example only, and that the invention is capable of being embodied in other forms and applications than described herein.
DESCRIPTION OF A PREFERRED EMBODIMENT
As indicated earlier, the present invention relates to apparatus and methods for administering predetermined heat treatments to a preselected body tissue in a manner to protect the body tissue from excessive heating. For purposes of example, the invention is described below with respect to the dental apparatus and method for administering heat treatments to root canals in teeth, as described in the above-cited US Patent 6,482,008, the contents of which are expressly incorporated herein by reference.
The apparatus illustrated in Fig. 1 includes a pulse generated, generally designated 10, constituted of a housing 20 which includes the electrical power supply and electronic circuitry for generating high frequency electrical pulses, and a handpiece 30 carrying an electrode unit 40 for applying the high frequency electrical pulses to the interior of the tooth root canal being treated. Thus, as shown in Fig. 1, housing 20 includes an electrical output line 21 connected to handpiece 30 for applying the high frequency electrical pulses to the electrode unit 40. In addition, housing unit 20 includes another line 22 connected to a lip clip 23 to be clipped to the lip of the subject receiving the treatment, and a further line 24 connected to a bare handlebar 25 to be gripped by the person receiving the treatment, all as described more particularly in the above-cited US Patent 6,482,008.
As described in that patent, electrode unit 40 is inserted into the root canal of a tooth being treated for contacting body tissue within the root canal to receive the high frequency electrical pulse from the pulse generator. The present invention relates particularly to the dental handpiece 30, and more particularly to the construction of the electrode unit 40.
The construction of electrode unit 40 and the respective part of handpiece 30 for receiving it is more particularly illustrated in Figs. 2-4.
Thus, as shown in Fig. 2, handpiece 30 is made of insulating material and of a configuration for convenient grasping by the dentist. It includes a push-button 31 depressible by the dentist when the high frequency pulse is to be applied to the patient after the electrode unit 40 has been inserted into the root canal of the tooth being treated. Push-button 31 is connected by electrical conductor 32 to the output line 21 of pulse generator unit 20, and by electrical conductor 33 to an electrical contact 34 (Figs. 3 and 4) within socket 35 to receive the electrode unit 40.
As shown more particularly in Figs. 3 and 4, electrode unit 40 includes an electrical connector plug 41 at one end for insertion into socket 35 of handpiece 30 to make electrical contact with contact 34 of the handpiece, and an exposed electrically- conductive electrode 42 at the opposite end for insertion into the tooth root canal. Electrode unit 40 further includes an electrical fuse 43 connecting electrode 42 to connector plug 41. It further includes an insulating jacket 44 covering fuse 43, together with electrical connections to electrode 42 and connector plug 41, to facilitate manual handling of the electrode unit. The angle between electrode 42 and connector plug 41 is an obtuse angle, preferably about 110°, to facilitate manipulation of electrode 42 by the dentist.
Fuse 43 is designed to have a value to automatically interrupt the electrical connection from connector plug 41 to the electrode 42 when sufficient energy has been supplied by the pulse generator to the electrode to produce the desired heat treatment, and thereby to protect the body tissue from excessive heating.
As described in the above-cited US Patent 5,482,008, housing unit 20 of the pulse generator 10 includes manually-selectable controls which enable the operator to select different values of electrical energy to be supplied to the electrode, according to the nature of the heat treatment to be applied, and particularly according to the type of tooth to be treated. The dentist would therefore be supplied with a plurality of electrode units 40, e.g., in a kit form as shown in Fig. 5, each having fuses of different values and selectively insertable into the socket 35 of handpiece 30, according to the respective heat treatment to be administered, thereby not only better protecting the patient from excessive heating, but also better assuring that a previously— used electrode unit, which may have become infected or deformed in one use, will not be re-used.
Thus, in using the apparatus illustrated in the drawings, the dentist would first determine the heat treatment to be applied, and would then select the appropriate electrode unit 40 and insert it into socket 35 of the handpiece 30, according to the selected heat treatment. Since the value of the fuse 43 in the selected electrode unit would correspond to the heat treatment to be applied, the fuse would automatically interrupt the application of electrical energy to electrode 42 as soon as the predetermined amount of electrical energy has been supplied to the electrode, thereby protecting the patient from excessive heating, as well as from a re— use of an electrode unit which may have become infected or deformed by a prior use. Preferably, each electrode unit 40 would be marked according to the value of its respective fuse 43 appropriate for the respective heat treatment to be applied. While the invention has been described with respect to one preferred embodiment, it will be appreciated that this is set forth merely for purposes of example, and that the invention may advantageously be used with other interrupting devices, and in many other applications requiring the administration of a predetermined heat treatment to a predetermined body tissue in a manner which provides protection against over-heating, or re-use of an electrode unit infected or deformed by a prior use.

Claims

What is claimed is:
1. Medical apparatus for administering a predetermined heat treatment to a preselected body tissue, comprising: an electrode for contacting the body tissue to receive said heat treatment; and a pulse generator electrically connected to said electrode for applying thereto an electrical pulse of sufficient energy for administering said heat treatment when said electrode is in contact with said body tissue; characterized in that said apparatus further comprises an interrupting device which automatically interrupts said electrical connection upon the application to said electrode of sufficient energy by the pulse generator to administer said predetermined heat treatment, and to thereby protect the body tissue from excessive heating.
2. The apparatus according to Claim 1, wherein said interrupting device is a heat— sensitive electrical fuse.
3. The apparatus according to Claim 2, wherein said electrode is constructed as an electrode unit integrally formed with said electrical fuse.
4. The apparatus according to Claim 3, wherein said electrode unit includes an exposed electrically-conductive section at one end for contacting the body tissue, an electrical connector plug at the opposite end for insertion into a socket electrically connected to said pulse generator, and said electrical fuse between said electrically- conductive section and said connector plug.
5. The apparatus according to Claim 4, wherein said electrical fuse and its electrical connections to said electrically-conductive section and said connector plug are covered by an insulating jacket to permit manually handling the electrode unit.
6. The apparatus according to Claim 5, wherein the axes of said electrically- conductive section of said electrode unit and said connector plug are at an obtuse angle to each other.
7. The apparatus according to Claim 5, wherein said pulse generator further includes a handpiece formed with said socket for receiving the connector plug of the electrode unit.
8. The apparatus according to Claim 7, wherein said electrode unit is designed for insertion into the root canal of a subject for administering a predetermined heat treatment thereto.
9. The apparatus according to Claim 7, wherein said handpiece further includes a manual switch for manually connecting said electrode unit to said pulse generator.
10. The apparatus according to Claim 4, wherein said apparatus comprises a plurality of said electrode units having fuses of different values, which electrode units are selectively insertable into said socket of the pulse generator according to the respective heat treatment to be administered.
11. A handpiece electrically connectable to a pulse generator for administering a predetermined medical heat treatment to a preselected body tissue, said handpiece comprising: an electrode electrically connectable to said pulse generator and having a section constructed for engaging the body tissue to which the heat treatment is to be administered; and an interrupting device which automatically interrupts the electrical connection of the electrode to the pulse generator upon the application to said electrode of sufficient energy by the pulse generator to administer said predetermined heat treatment, and to thereby protect the body tissue from excessive heating.
12. The handpiece according to Claim 11, wherein said interrupting device is a heat-sensitive electrical fuse.
13. The handpiece according to Claim 12, wherein said electrode is constructed as an electrode unit integrally formed with said electrical fuse.
14. The handpiece according to Claim 13, wherein said electrode unit includes said conductive section at one end for contacting the body tissue, an electrical connector plug at the opposite end for insertion into a socket electrically connectable to said pulse generator, and said electrical fuse between said conductive section and said connector plug.
15. The handpiece according to Claim 14, wherein said electrical fuse and its electrical connections to said conductive section and connector plug are covered by an insulating jacket to permit manually handling the electrode unit.
16. The handpiece according to Claim 15, wherein the axes of said electrically-conductive section of the electrode unit and said connector plug are at an obtuse angle to each other.
17. The handpiece according to Claim 13, wherein said electrode unit is designed for insertion into the root canal of a subject for administering a predetermined heat treatment thereto.
18. The handpiece according to Claim 13, wherein said handpiece further includes a manual switch for manually connecting said electrode unit to said pulse generator.
19. A method of administering a predetermined heat treatment to a preselected body tissue, comprising: contacting the body tissue with an electrode connected to a pulse generator; while the electrode is in contact with the body tissue, activating the pulse generator to apply to the electrode an electrical pulse of sufficient energy to administer said predetermined heat treatment; and automatically interrupting, by a heat-sensitive fuse in the electrical connection from the pulse generator to the electrode, the electrical connection to the electrode upon the application thereto of sufficient electrical energy from the pulse generator to administer the predetermined heat treatment, to thereby protect the body tissue from excessive heating.
20. The method according to Claim 19, wherein said heat-sensitive fuse is integrally formed with the electrode, and said electrode is constructed for insertion into the root canal of a tooth of a patient to be disinfected, said electrical energy supplied by the pulse generator to the electrode being sufficient to disinfect said root canal.
PCT/IL2008/000333 2007-03-19 2008-03-11 Medical apparatus for administering heat treatments particularly usefeul in dental root canal treatments WO2008114243A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US90705707P 2007-03-19 2007-03-19
US60/907,057 2007-03-19

Publications (1)

Publication Number Publication Date
WO2008114243A1 true WO2008114243A1 (en) 2008-09-25

Family

ID=39651355

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2008/000333 WO2008114243A1 (en) 2007-03-19 2008-03-11 Medical apparatus for administering heat treatments particularly usefeul in dental root canal treatments

Country Status (1)

Country Link
WO (1) WO2008114243A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010052717A1 (en) * 2008-11-05 2010-05-14 Medicn.R.G. Ltd. Device and method for dental cavity treatment
ITMI20091429A1 (en) * 2009-08-06 2011-02-07 Enos Gmbh PROBE FOR ENDODONTICS SUITABLE FOR THE USE OF DISPOSABLE AGHIFORMS ELECTRODES

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6179824B1 (en) * 1993-05-10 2001-01-30 Arthrocare Corporation System and methods for electrosurgical restenosis of body lumens
EP1174093A1 (en) * 1993-05-10 2002-01-23 Arthrocare Corporation Methods and apparatus for electrosurgical cutting
US20020058232A1 (en) * 2000-09-22 2002-05-16 Weiss Ervin I. Method for root canal treatment: technique, tools and materials for mobilizing medicaments and cements into dentinal tubules
WO2003005898A1 (en) * 2001-07-11 2003-01-23 Aaken Labs Medical electrode for preventing the passage of harmful current to a patient
WO2006059067A1 (en) * 2004-12-03 2006-06-08 Gyrus Medical Limited An electrosurgical generator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6179824B1 (en) * 1993-05-10 2001-01-30 Arthrocare Corporation System and methods for electrosurgical restenosis of body lumens
EP1174093A1 (en) * 1993-05-10 2002-01-23 Arthrocare Corporation Methods and apparatus for electrosurgical cutting
US20020058232A1 (en) * 2000-09-22 2002-05-16 Weiss Ervin I. Method for root canal treatment: technique, tools and materials for mobilizing medicaments and cements into dentinal tubules
WO2003005898A1 (en) * 2001-07-11 2003-01-23 Aaken Labs Medical electrode for preventing the passage of harmful current to a patient
WO2006059067A1 (en) * 2004-12-03 2006-06-08 Gyrus Medical Limited An electrosurgical generator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010052717A1 (en) * 2008-11-05 2010-05-14 Medicn.R.G. Ltd. Device and method for dental cavity treatment
US9629691B2 (en) 2008-11-05 2017-04-25 Medic N.R.G. Ltd. Root canal treatment
US11090486B2 (en) 2008-11-05 2021-08-17 Mdt Micro Diamond Technologies Ltd Root canal treatment
ITMI20091429A1 (en) * 2009-08-06 2011-02-07 Enos Gmbh PROBE FOR ENDODONTICS SUITABLE FOR THE USE OF DISPOSABLE AGHIFORMS ELECTRODES

Similar Documents

Publication Publication Date Title
IL133124A (en) Implantable device for electrostimulation and/or monitoring of endoabdominal cavity tissue
US6319007B1 (en) Vital pulp therapy
JP4041165B2 (en) Device that deactivates teeth using high-frequency current
US7204703B1 (en) Epicardial pacer extension cable system
US6644972B1 (en) Endodontic obturator with removable carrier and method of use thereof
JP2001517974A (en) Bipolar electrosurgical treatment device
US11103696B2 (en) Device for electrical stimulation of peridontal complex and surrounding tissue
US8221417B2 (en) Disposable electro-surgical cover elements and electro-surgical instrument
US20090047618A1 (en) Handset and Optical Tip for Photosynthesis
CN106794041B (en) Electrical connector for electrosurgical devices
US4886075A (en) Thermoelectric ion generator for endodontic therapy
WO2001054602A3 (en) Electrosurgical wire knife
WO2008114243A1 (en) Medical apparatus for administering heat treatments particularly usefeul in dental root canal treatments
WO2020123732A2 (en) Device for electrical stimulation of peridontal complex and surrounding tissue
JP4469015B1 (en) Alveolar bone regeneration device
CN113412096B (en) Novel systems and methods for accelerating dental implant healing
KR100317420B1 (en) Gutta percha point-cutting apparatus
JP3152831U (en) Electric therapy device
JP4103101B2 (en) Defibrillation electrode and defibrillation system
EP3081261A1 (en) Intra-oral element for application of energy delivery treatments in jawbone, gums or other tissues inside the mouth
EP3069678A1 (en) Handheld rf or ultrasonic device
RU2667958C1 (en) Method for treating periodontal diseases and an electrode for its implementation
US20230132044A1 (en) Galvanic Electrolysis Unit for Hair Follicle Ablation
US20220062628A1 (en) Method of using an alveolar bone regeneration device
JP2004321273A (en) Therapy equipment and therapy tool used for the same

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08719958

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08719958

Country of ref document: EP

Kind code of ref document: A1