CA1309607C - Dental irrigating needle - Google Patents
Dental irrigating needleInfo
- Publication number
- CA1309607C CA1309607C CA000566193A CA566193A CA1309607C CA 1309607 C CA1309607 C CA 1309607C CA 000566193 A CA000566193 A CA 000566193A CA 566193 A CA566193 A CA 566193A CA 1309607 C CA1309607 C CA 1309607C
- Authority
- CA
- Canada
- Prior art keywords
- needle
- cannula
- hub
- irrigating
- nozzle
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
-
- 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
Abstract
A B S T R A C T
There is disclosed a dental irrigating needle comprising a hub adapted to be engaged to a syringe and a cannula which is made of freely bendable metal and having a closed tip. The needle has at least one nozzle orifice defining a spout for a cleansing solution, at the lateral wall of a forward portion of the cannula. This needle is useful for removing reaming chips of dentine and residual organic matter during canal reformation in dental treatment.
There is disclosed a dental irrigating needle comprising a hub adapted to be engaged to a syringe and a cannula which is made of freely bendable metal and having a closed tip. The needle has at least one nozzle orifice defining a spout for a cleansing solution, at the lateral wall of a forward portion of the cannula. This needle is useful for removing reaming chips of dentine and residual organic matter during canal reformation in dental treatment.
Description
DENTAL IRRIGATING NEEDLE
This invention relates to an irrigating needle for removing reaming chips of dentine and residual organic matter in the process of root canal reformation in dental treatment, and has its application in the field of health care.
The dental irrigating needle (hereinafter referred to as an irrigating needle) is engaged to a syringe containing a cleansing soJ.ution in such applications as the irrigating of the canalis radicis dentis which is performed for removing reaming chips of dentine and residual organic matter in the process of root canal reformation. In use, the tip of the needle is applied to the irrigation site and the cleansing solution is spouted from the tip.
The conventional irrigating needle comprising a straight cannula having a nozzle orifice at its tip has proved inconvenient because the handling angle of the syringe must be delicately controlled according to the 'X~
position of the tooth to be treated, the depth of the site to be irrigated, and so on.
To overcome this inconvenience, an irrigating needle comprising a cannula bent at a given angle in a position about 1 cm away from its tip has been deve-loped and used.
However, there is also the problem that when the cleansing solution is spouted directly into the reamed tooth bottom, the reaming chips tend to entex into the tiny gaps in the depth of the root canal and cannot be removed.
To overcome the above disadvantage, an irrigating needle provided with an orifice for spout of the cleansing solution at the lateral wall of a forward portion of the cannula has been developed and put to use.
Of the above-mentioned prior art, the former is not as satis~actory as desired because, although the bent cannula assures a greater ease of use as compared with the straight construction, the fixed bending angle is not sufficient for handling. Furthermore, since this irrigating needle is provided with a nozzle orifice at the tip of the cannula, chips of dentine and other matter cannot be fully removed as mentioned above.
In the latter of the above-mentioned prior art, the cannula of the needle is straight and not bendable so that the above-mentioned inconvenience in usP
remains yet be resolved.
Summary of the Invention Having been accomplished to solve the above problems, this invention provides a dental irrigating needle comprising a hub adapted to be engaged to a syringe and a cannula which is made of freely bendable metal and having a closed tip and at least one nozzle orifice for spout of the cleansing solution at the lateral wall of a forward portion of the cannula.
~ 3 --Brief Description of the Drawin~
Fig. 1 is a longitudinal section view showing the irrigating needle o this invention.
Fig. 2 is a side elevation view showing the needle in use.
Detailed Descr'ption of the Preferred Embodiment This invention is described below with reference to an embodiment thereof as depicted in the accompany-ing drawing.
Fig. 1 is a longitudinal section view showing a irrigating needle of the invention which comprises a hub (1) and a cannula (2). The hub (1) may be the same as that of the conventional needle in size, shape, material and so forth.
lS The cannula (2) is made of freely bendable metal and has an internal passageway (3) ~or the cleansing solution with its forward end closed and a couple of nozzle orifices (4,4) for spouting the cleansing solution at the lateral wall adjacent to the closed tip in longitudinally different positions, one on one side and the other on the diametrically opposlte side.
The freely bendable cannula (2) of the irrigating needle of the invention can be easily provided, for example by annealing a stainless steel tube by the method described in Japanese Utility Model Publication No. 172408/1987. The tip closure of the cannula (2) can be formed by gradual inward bending of the lateral wall o the tip portion of the pre-annealing needle.
On the other hand, the nozzle orifice (4) can be formed by drilling the lateral wall adjacent to the closed tip o the pre~annealinq cannula (2).
Like the conventional irrigating needle, the irrigating needle of this invention is used as engaged to the tip of a syringe containing a cleansing solution such as 10% sodium hypochlorite, 3% hydrogen peroxide and other solutions.
The irrigating needle according to this invention is not limited to the above embodiment but can be provided in an optional design in respect to the length and size of the cannula, the configuration and size of the nozzle orifices, and other details.
There is no particular limitation on the number of available nozzle orifices but the arrangement of 2 or 3 orifices for spout of the cleansing solution in divexse directions contributes to enhanced irrigating effect and is preferable.
Furthermore, the provision of the hub with a marking indicating the direction of the nozzle orifices, such as a dot mark, is further convenient for useO
Since the irrigating needle of this invention is made of freely bendable metal, it can be bent in any desired position and direction at an optional angle according to the site to be irrigated, as shown in solid and dotted lines in Fig. 2, and, moreover, can be easily inserted into a curved root canal. Thus, this irrigating needle is very convenient for use.
Furthermore, when each of plural nozzle orifices fsr the c~eansing solution are provided on different lateral sides, the cleansing solution is spouted in different directions at the same time, so a high irrigating efficiency is obtained.
This invention relates to an irrigating needle for removing reaming chips of dentine and residual organic matter in the process of root canal reformation in dental treatment, and has its application in the field of health care.
The dental irrigating needle (hereinafter referred to as an irrigating needle) is engaged to a syringe containing a cleansing soJ.ution in such applications as the irrigating of the canalis radicis dentis which is performed for removing reaming chips of dentine and residual organic matter in the process of root canal reformation. In use, the tip of the needle is applied to the irrigation site and the cleansing solution is spouted from the tip.
The conventional irrigating needle comprising a straight cannula having a nozzle orifice at its tip has proved inconvenient because the handling angle of the syringe must be delicately controlled according to the 'X~
position of the tooth to be treated, the depth of the site to be irrigated, and so on.
To overcome this inconvenience, an irrigating needle comprising a cannula bent at a given angle in a position about 1 cm away from its tip has been deve-loped and used.
However, there is also the problem that when the cleansing solution is spouted directly into the reamed tooth bottom, the reaming chips tend to entex into the tiny gaps in the depth of the root canal and cannot be removed.
To overcome the above disadvantage, an irrigating needle provided with an orifice for spout of the cleansing solution at the lateral wall of a forward portion of the cannula has been developed and put to use.
Of the above-mentioned prior art, the former is not as satis~actory as desired because, although the bent cannula assures a greater ease of use as compared with the straight construction, the fixed bending angle is not sufficient for handling. Furthermore, since this irrigating needle is provided with a nozzle orifice at the tip of the cannula, chips of dentine and other matter cannot be fully removed as mentioned above.
In the latter of the above-mentioned prior art, the cannula of the needle is straight and not bendable so that the above-mentioned inconvenience in usP
remains yet be resolved.
Summary of the Invention Having been accomplished to solve the above problems, this invention provides a dental irrigating needle comprising a hub adapted to be engaged to a syringe and a cannula which is made of freely bendable metal and having a closed tip and at least one nozzle orifice for spout of the cleansing solution at the lateral wall of a forward portion of the cannula.
~ 3 --Brief Description of the Drawin~
Fig. 1 is a longitudinal section view showing the irrigating needle o this invention.
Fig. 2 is a side elevation view showing the needle in use.
Detailed Descr'ption of the Preferred Embodiment This invention is described below with reference to an embodiment thereof as depicted in the accompany-ing drawing.
Fig. 1 is a longitudinal section view showing a irrigating needle of the invention which comprises a hub (1) and a cannula (2). The hub (1) may be the same as that of the conventional needle in size, shape, material and so forth.
lS The cannula (2) is made of freely bendable metal and has an internal passageway (3) ~or the cleansing solution with its forward end closed and a couple of nozzle orifices (4,4) for spouting the cleansing solution at the lateral wall adjacent to the closed tip in longitudinally different positions, one on one side and the other on the diametrically opposlte side.
The freely bendable cannula (2) of the irrigating needle of the invention can be easily provided, for example by annealing a stainless steel tube by the method described in Japanese Utility Model Publication No. 172408/1987. The tip closure of the cannula (2) can be formed by gradual inward bending of the lateral wall o the tip portion of the pre-annealing needle.
On the other hand, the nozzle orifice (4) can be formed by drilling the lateral wall adjacent to the closed tip o the pre~annealinq cannula (2).
Like the conventional irrigating needle, the irrigating needle of this invention is used as engaged to the tip of a syringe containing a cleansing solution such as 10% sodium hypochlorite, 3% hydrogen peroxide and other solutions.
The irrigating needle according to this invention is not limited to the above embodiment but can be provided in an optional design in respect to the length and size of the cannula, the configuration and size of the nozzle orifices, and other details.
There is no particular limitation on the number of available nozzle orifices but the arrangement of 2 or 3 orifices for spout of the cleansing solution in divexse directions contributes to enhanced irrigating effect and is preferable.
Furthermore, the provision of the hub with a marking indicating the direction of the nozzle orifices, such as a dot mark, is further convenient for useO
Since the irrigating needle of this invention is made of freely bendable metal, it can be bent in any desired position and direction at an optional angle according to the site to be irrigated, as shown in solid and dotted lines in Fig. 2, and, moreover, can be easily inserted into a curved root canal. Thus, this irrigating needle is very convenient for use.
Furthermore, when each of plural nozzle orifices fsr the c~eansing solution are provided on different lateral sides, the cleansing solution is spouted in different directions at the same time, so a high irrigating efficiency is obtained.
Claims (4)
1. A dental irrigation needle comprising:
a hub having means engageable with a syringe;
a cannula having one closed end and another end fitted to the hub, said cannula being formed of a freely bendable annealed stainless steel whereby said cannula may be bent to a desired angle and will maintain the bent angle in the absence of a restoring force; and at least one nozzle orifice formed in a lateral wall of said cannula adjacent said one end, whereby a fluid from a syringe may be discharged through said nozzle orifice.
a hub having means engageable with a syringe;
a cannula having one closed end and another end fitted to the hub, said cannula being formed of a freely bendable annealed stainless steel whereby said cannula may be bent to a desired angle and will maintain the bent angle in the absence of a restoring force; and at least one nozzle orifice formed in a lateral wall of said cannula adjacent said one end, whereby a fluid from a syringe may be discharged through said nozzle orifice.
2. The needle of Claim 1 including at least two of said nozzle orifices, said nozzle orifices being mutually axial and circumferentially spaced along said cannula.
3. The needle of Claim 2 including two diametrically opposed ones of said nozzle orifices.
4. The needle of Claim 1 including a marking on said hub indicating a direction of each of said at least one nozzle orifices.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62111236A JPH0673530B2 (en) | 1987-05-07 | 1987-05-07 | Dental cleaning needle |
| JP111236/87 | 1987-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1309607C true CA1309607C (en) | 1992-11-03 |
Family
ID=14556021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000566193A Expired - Lifetime CA1309607C (en) | 1987-05-07 | 1988-05-06 | Dental irrigating needle |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4993941A (en) |
| EP (1) | EP0290011B1 (en) |
| JP (1) | JPH0673530B2 (en) |
| CA (1) | CA1309607C (en) |
| DE (1) | DE3882424T2 (en) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE462916B (en) * | 1989-10-17 | 1990-09-17 | Tripple L Lab Ab | DEVICE AND PROCEDURE FOR SAMPLING FROM DENTAL POCKETS AND A SAMPLE SUGGESTED |
| US5092854A (en) * | 1989-11-13 | 1992-03-03 | Johnson & Johnson Medical, Inc. | Two-part flexible swivel spray tip for syringe |
| US5297962A (en) * | 1991-05-20 | 1994-03-29 | Air-Brush Ltd. | Dental cleaning device |
| US5127831A (en) * | 1991-06-03 | 1992-07-07 | Bab Itai | Flexible-end irrigation probe |
| US5755572A (en) * | 1992-08-10 | 1998-05-26 | Novadent Ltd. | Oral hygiene irrigator syringe bulb |
| IL102776A (en) * | 1992-08-10 | 1996-09-12 | Novadent Ltd | Oral hygiene irrigator syringe bulb |
| US5662619A (en) * | 1995-11-27 | 1997-09-02 | Zarate; Alfredo R. | Venous dialysis needle |
| US6394996B1 (en) | 1997-01-07 | 2002-05-28 | C. R. Bard, Inc. | System for aspirating and irrigating tract wounds |
| US6048200A (en) * | 1997-09-22 | 2000-04-11 | Martin; Daniel H. | Single use nozzle for dental syringe |
| US6079979A (en) * | 1998-01-28 | 2000-06-27 | Ultradent Products, Inc. | Endonontic irrigator tips and kits |
| US6007335A (en) * | 1998-10-06 | 1999-12-28 | Sheu; Miin-Tchang | Medicine dispenser adapted to administer liquid medicine via a retromolar pad area |
| DE20001584U1 (en) * | 2000-01-29 | 2000-03-23 | Universitaetsklinikum Freiburg | Rinsing cannula for rinsing a root canal of a tooth |
| US6422865B1 (en) * | 2001-01-22 | 2002-07-23 | Ultradent Products, Inc. | Endodontic irrigator tips having cannulas with annealed distal portions and related methods |
| DE10331583B3 (en) * | 2003-07-11 | 2004-07-15 | Ferton Holding S.A. | Nozzle piece for a dental powder stream device has several nozzle openings formed in the casing surface of the front end of a tubular partial length of the nozzle piece |
| DE102005024893B4 (en) * | 2005-02-04 | 2007-09-13 | Karl Dr. Behr | Root canal probe and use of a root canal probe to clean a root canal |
| JP2006271651A (en) * | 2005-03-29 | 2006-10-12 | Matsumoto Shika Univ | Needle component for liquid injection, and production method thereof |
| US20080097347A1 (en) * | 2006-09-22 | 2008-04-24 | Babak Arvanaghi | Bendable needle assembly |
| US20100190133A1 (en) * | 2007-10-30 | 2010-07-29 | Martinez Daniel L | Irrigation and aspiration device |
| SE532467C2 (en) * | 2007-12-27 | 2010-01-26 | Numat As | Implant cleaning tool for cleaning a metallic implant |
| WO2014060985A2 (en) | 2012-10-19 | 2014-04-24 | Produits Dentaires S.A. | Cannula with a closed tip and radial openings |
| AU358472S (en) * | 2014-02-19 | 2014-10-28 | Chiesi Farm Spa | A catheter |
| JP1553633S (en) | 2015-02-13 | 2016-07-11 | ||
| JP6128473B2 (en) * | 2015-11-04 | 2017-05-17 | 正泰 増茂 | Periodontal pocket cleaning device |
| EP3383313B1 (en) | 2015-12-03 | 2019-09-25 | L. Stephen Buchanan | Multi-cannula negative pressure irrigation system |
| EP3278762A1 (en) * | 2016-08-04 | 2018-02-07 | Justus-Liebig-Universität Gießen | Instrument appendage for cleaning of implant surfaces |
| DE102017104618A1 (en) * | 2017-03-06 | 2018-09-06 | Henke-Sass, Wolf Gmbh | Cannula for intraligamentary anesthesia |
| CA3099756A1 (en) | 2018-06-01 | 2019-12-05 | Dentsply Sirona Inc. | Multi port endodontic irrigation needle |
| JP7354234B2 (en) * | 2018-09-26 | 2023-10-02 | メドミクス スウィッツァランド アーゲー | Dispensing outlets, dispensing systems, methods of using dispensing systems, injection molds, and methods of creating dispensing outlets |
| KR102280519B1 (en) * | 2019-03-22 | 2021-07-29 | 비엔엘바이오테크 주식회사 | Ductility improvement method of needle for endodontic instrument and manufacturing method of needle |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2850014A (en) * | 1957-10-22 | 1958-09-02 | Ginsburg Abraham | Hypodermic needle |
| US2922420A (en) * | 1957-11-29 | 1960-01-26 | Sierra Eng Co | Epidural needle |
| US3035351A (en) * | 1960-04-27 | 1962-05-22 | Arnold J Hirsch | Methods of root canal and periodontal therapy |
| US3330268A (en) * | 1963-12-18 | 1967-07-11 | Goldsmith Sidney | Biopsy needle |
| US3439675A (en) * | 1966-06-14 | 1969-04-22 | Becton Dickinson Co | Deformable needle assembly |
| US3525339A (en) * | 1968-05-20 | 1970-08-25 | Becton Dickinson Co | Flexible gas endarterectomy spatula |
| JPS4914471A (en) * | 1972-05-22 | 1974-02-07 | ||
| US3816921A (en) * | 1972-10-30 | 1974-06-18 | O Malmin | Combined endodontic irrigating, injecting and sealing instrument |
| US3890977A (en) * | 1974-03-01 | 1975-06-24 | Bruce C Wilson | Kinetic memory electrodes, catheters and cannulae |
| US3958557A (en) * | 1975-03-10 | 1976-05-25 | Texas Medical Products, Inc. | Coronary artery bypass graft testing device and method |
| US4026025A (en) * | 1975-10-28 | 1977-05-31 | Hunt Roderick S | Dental syringe |
| US4044468A (en) * | 1976-05-03 | 1977-08-30 | Henry Kahn | Handle for cutting and abrading instruments useful in the practice of endodontia |
| US4276880A (en) * | 1978-09-14 | 1981-07-07 | Oscar Malmin | Cannula and process |
| US4236520A (en) * | 1978-12-04 | 1980-12-02 | Anderson Mark L | Fluid drain or injection tube for an animal's udder |
| US4432758A (en) * | 1982-08-30 | 1984-02-21 | Finegold Aaron N | Urethral anesthetic devices |
| SE450929B (en) * | 1983-07-18 | 1987-08-17 | Aco Laekemedel Ab | SET AND DEVICE FOR RINSE OF RESPONSIBLE SAR OR TREATMENT SURFACES |
| JPS62172408A (en) * | 1986-01-24 | 1987-07-29 | Sharp Corp | Method of speed control |
| JPH0630168Y2 (en) * | 1986-04-23 | 1994-08-17 | ヘキストジャパン株式会社 | Nozzle for biological tissue adhesive |
| US4747827A (en) * | 1986-09-25 | 1988-05-31 | Micek Frank C | Nasogastric intubation process |
-
1987
- 1987-05-07 JP JP62111236A patent/JPH0673530B2/en not_active Expired - Lifetime
-
1988
- 1988-04-29 US US07/187,750 patent/US4993941A/en not_active Expired - Lifetime
- 1988-05-04 DE DE88107172T patent/DE3882424T2/en not_active Expired - Lifetime
- 1988-05-04 EP EP88107172A patent/EP0290011B1/en not_active Expired - Lifetime
- 1988-05-06 CA CA000566193A patent/CA1309607C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0290011B1 (en) | 1993-07-21 |
| US4993941A (en) | 1991-02-19 |
| EP0290011A3 (en) | 1990-10-24 |
| DE3882424D1 (en) | 1993-08-26 |
| JPH0673530B2 (en) | 1994-09-21 |
| EP0290011A2 (en) | 1988-11-09 |
| DE3882424T2 (en) | 1993-11-25 |
| JPS63275339A (en) | 1988-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |