US20100137921A1 - Fixation pin - Google Patents
Fixation pin Download PDFInfo
- Publication number
- US20100137921A1 US20100137921A1 US12/627,270 US62727009A US2010137921A1 US 20100137921 A1 US20100137921 A1 US 20100137921A1 US 62727009 A US62727009 A US 62727009A US 2010137921 A1 US2010137921 A1 US 2010137921A1
- Authority
- US
- United States
- Prior art keywords
- fixation pin
- rod
- head
- drill template
- pin according
- 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.)
- Abandoned
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0089—Implanting tools or instruments
- A61C8/009—Implanting tools or instruments for selecting the right implanting element, e.g. templates
-
- 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
- A61B90/90—Identification means for patients or instruments, e.g. tags
- A61B90/92—Identification means for patients or instruments, e.g. tags coded with colour
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/08—Machine parts specially adapted for dentistry
- A61C1/082—Positioning or guiding, e.g. of drills
- A61C1/084—Positioning or guiding, e.g. of drills of implanting tools
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0089—Implanting tools or instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C2201/00—Material properties
- A61C2201/002—Material properties using colour effect, e.g. for identification purposes
Abstract
Fixation pin (1) for fixing a dental drill template. The fixation pin (1) has a head (5) having a bearing surface (10) that is intended to bear at least partially on the drill template, or a sleeve provided in the drill template. The fixation pin (1) has a rod (15) having a shape of an essentially circular cylinder and which extends from the bearing surface (10) at an essentially right angle. The rod (15) is intended to be inserted into the drill template or the sleeve provided in the drill template.
Description
- The present invention relates to a fixation pin for a dental template, to a set including the fixation pin and to its use for fixing a dental drill template.
- In dentistry it is well known to replace either missing teeth or carious teeth where the progress of caries is such that they cannot be fixed in another, less invasive way. Said missing teeth are usually replaced by an endosseous implant with an artificial supra-structure. While quite a lot research has been done to improve the dental implants themselves, tools and devices which aid in planning the implantation and during the surgical intervention have long been neglected. However in recent years such aiding devices have become more and more important.
- For instance, the drilling of the hole necessary for the endosseous part of the dental implant has been simplified. While at the beginning the drilling of the hole was purely dependent on the skill of the individual surgeon, there are now drill templates which are adapted to the anatomy of the individual patient and which serve to achieve a precise drilling of the hole. The drill template is manufactured after a prior check of the anatomy of the patient's jaw bone. Such a check helps to define the optimal position of the necessary bore hole(s). Once this positional information has been obtained and incorporated into the drill template by means of bore holes, the drill template is used by the surgeon to provide an optimal guiding of the drill thereby achieving the desired axis and dimensions of the hole(s). The drilling of the holes is a crucial step for a successful implantation, since it is hardly possible to correct wrongly positioned bore holes. Even slight corrections, e.g. of the drill axis, further diminish jaw bone mass and are thus difficult to correct. Although it is of utmost importance that drill templates are kept exactly in position once they have been placed on the jaw or the gum of a patient, there are no special means to keep the drill template in place during its use.
- The problem addressed by the present invention is to provide an article and method for temporarily fixing a drill template in position while the drill template is used.
- A fixation pin for fixing a dental drill template, according to one embodiment of the invention, has a head with a bearing surface that is intended to bear at least partially on a drill template, or a drill sleeve provided in a drill template. The fixation pin further has a rod having a shape of an essentially circular cylinder and which extends from the bearing surface of the head at an essentially right angle, whereby said rod is intended to be inserted into the drill template or the drill sleeve provided in the drill template.
- The fixation pin provides for a fast and reliable fixation of a drill template and is easy to handle. Since the rod of the fixation pin does not have a screw thread, there is no screwing requirement. On the contrary, the essentially cylindrical shape of the rod can be easily inserted into the drill template, or the drill sleeve provided in the drill template, and ensures a fast and detachable fixation of the drill template. In contrast, multiple insertions of a rod having a screw thread is likely to damage the bore hole and thus hamper the subsequent insertion of a dental implant such that the implantation is unsuccessful because of poor osseointegration of the implant. The fixation pin in various embodiments of the invention may also serve as a temporary cap of the bore hole and prevent the intrusion of blood, bone debris and other unwanted particles or liquids (e.g. saliva of the patient). This is particularly advantageous if several holes have to be drilled. Further, the bearing surface of the head of the fixation pin may provide a physical stop limiting the depth the fixation pin may be inserted into drill template (or drill sleeve provided in the drill template), thereby also limiting the depth by which the fixation pin extends into the bore hole that has been drilled into the jaw bone.
- In a further embodiment, the head of the fixation pin has a shape of an essentially circular cylinder.
- In another embodiment, the head has a circumventing indentation, which circumventing indentation preferably has a concave shape. The circumventing indentation provides for a good grip. The good grip avoids unintentional slipping and/or dropping of the fixation pin by the operator.
- In a further embodiment of the fixation pin, the rod has a first portion which extends from the bearing surface of the head. The rod has, subsequent to the first portion, a second portion, said second portion having a diameter which is smaller than the diameter of the first portion. The second portion is attached to the first portion of the rod.
- The axis of the first portion and the second portion of the rod are preferably coaxial.
- In a further preferred embodiment, the first portion of the rod is connected to the second portion of the rod by an intervening third portion which has a conical shape.
- In another embodiment, the fixation pin is made of one single piece. Being made of one piece the manufacturing of the fixation pin is simplified and its mechanical stability is further improved.
- In a further embodiment, the fixation pin is made of a material which is selected from the group consisting of hard plastics, stainless steel, titanium and titanium alloys.
- In a preferred embodiment, the fixation pin is made of titanium or a titanium alloy. Titanium has a very good stability and is biologically inert, that is to say, it has an excellent biocompatibility.
- In a further embodiment, the fixation pin is made of stainless steel. Stainless steel shows a very good stability and is biologically inert. Stainless steel is readily available and is inexpensive.
- In another embodiment, the fixation pin further includes an aspiration security. The aspiration security prevents unwanted aspiration of the fixation pin by the patient. Such an unwanted aspiration may be harmful for the patient and cause injury.
- In a preferred embodiment, the aspiration security is a string that is attached to the head of the fixation pin. For instance, a dental floss may be bound around the head of the fixation pin, more precisely, around the circumventing indentation.
- While the fixation pin is inserted in the drill template (or a sleeve provided in the drill template) in a patient's mouth, the end of the string which is opposite to the one attached to the fixation pin may be temporarily fixed outside the mouth of the patient. It may also be simply held by hand.
- The present invention also relates to a set that includes at least one fixation pin. Preferably, the set comprises more than one fixation pin, whereby at least some of the fixation pins differ in their diameter. Differing in their diameter means that the fixation pins have either different diameters in the second portion of the rod and the same diameter in the first portion, or they differ in the diameter of the first portion and the diameter of the second portion is the same. In another alternative the fixation pins in the set differ both in the diameter of the first portion of the rod and in the second portion of the rod.
- The present invention also relates to a method of using a fixation pin for fixing a drill template. The fixation pin provides for a simple and secure fixation of a drill template in the patient's mouth. Its use is particularly advantageous for fixing drill templates which have at least two bore holes.
- A fixation pin according to the present invention will be explained in more detail in the following text with reference to exemplary embodiments, which are illustrated in the drawings and in which, schematically:
-
FIG. 1 shows a first embodiment of a fixation pin in a longitudinal section; -
FIG. 2 shows a second embodiment of a fixation pin in a profile view; -
FIG. 3 shows the fixation pin according toFIG. 2 in a perspective view; -
FIG. 4 shows a further embodiment of a fixation pin in a profile view; and -
FIG. 5 shows the fixation pin according toFIG. 4 in a perspective view. -
FIG. 1 shows a first embodiment of a fixation pin according to the present invention, in a longitudinal section. The fixation pin 1 has ahead 5 which has a bearingsurface 10. From the bearing surface 10 arod 15 extends at an essentially right angle. Therod 15 has a shape of an essentially circular cylinder and its diameter is constant throughout the length of the rod. Therod 15 is arranged in the centre of the bearingsurface 10. -
FIG. 2 shows another preferred embodiment of a fixation pin according to the invention. Thefixation pin 2 has ahead 45 having a shape of an essentially circular cylinder. From the bearingsurface 40 of thehead 45 extends arod 55 that also has a shape of an essentially circular cylinder. Thehead 45 and therod 55 are coaxially arranged and have acommon axis 20. Further, thehead 45 has a circumventingindentation 25 having a concave shape. Thehead 45 also carries a mark in the form of a coloured, circumventingband 30. The coloured circumventing band serves as a colour code for distinguishing different sets of fixation pins. The colour code may, for instance, refer to the diameter of the bore hole. Since different dental implants require bore holes of different diameters, fixation pins with a portion intended to be inserted into the bore hole that meet this diameter requirement, are also needed. The colour code allows for an easy distinction of the different fixation pins. In addition, the rod carries two height marks 35, 36 indicating different heights or distances. These marks provide visible stop marks that allow the surgeon to insert the fixation pin to a certain depth into the drill template (or the drill sleeve provided in the drill template) and into the bore hole. The maximum depth that a fixation pin can be inserted is limited by the bearingsurface 40 of thehead 45 of the fixation pin, thereby providing a physical stop. -
FIG. 3 shows thefixation pin 2 ofFIG. 2 in a perspective view. Thefixation pin 2 has ahead 45 having a circumventingindentation 25 of an essentially concave shape. In theconcave indentation 25, thecoloured circumventing band 30 is shown. Arod 55 extends in a coaxial direction from thehead 45. The rod carries height marks 35, 36 of which only one 36 can be seen. -
FIG. 4 shows a further embodiment of a fixation pin. Thefixation pin 3 has ahead 65 having a bearingsurface 60 from which arod 95 coaxially extends in a direction of thecommon axis 20. Thehead 65 has a circumventingindentation 75 with acoloured circumventing band 70. Therod 95 has afirst portion 96 extending from the bearingsurface 60 and asecond portion 97 that has a smaller diameter than the diameter of thefirst portion 96. Thefirst portion 96 of therod 95 is connected to thesecond portion 97 by an interveningthird portion 98, which third portion has a conical shape. The height marks 85, 86 are arranged on thefirst portion 96 of therod 95. -
FIG. 5 shows the fixation pin ofFIG. 4 in a perspective view. Thefixation pin 3 hashead 65 having circumventingindentation 75 andcoloured circumventing band 70. From bearing surface 60 (which cannot be seen in this view) of the head 65 arod 95 extends at an essentially right angle. Therod 95 has threedifferent portions first portion 96 extends from the bearing surface of thehead 65, thesecond portion 97 of therod 95 is connected to thefirst portion 96 by an interveningportion 98 having a conical shape. Thesecond portion 97 has a diameter that is smaller than the diameter of thefirst portion 96. The interveningportion 98 has two end faces with different diameters. The end face of the interveningportion 98 with the smaller diameter adjoins thesecond portion 97 of therod 95, whereas the end face of the interveningportion 98 having the greater diameter adjoins thefirst portion 96 of therod 95.
Claims (14)
1. Fixation pin for fixing a dental drill template, the fixation pin comprising a head having a bearing surface intended to bear at least partially on the drill template or a sleeve provided in the drill template, and a rod having a shape of an essentially circular cylinder and extending from the bearing surface of the head at an essentially right angle, the rod intended to be inserted into the drill template or the sleeve provided in the drill template.
2. Fixation pin according to claim 1 , wherein the head has a shape of an essentially circular cylinder.
3. Fixation pin according to claim 1 , wherein the head has a circumventing indentation.
4. Fixation pin according to claim 3 , wherein the circumventing indentation has a concave shape.
5. Fixation pin according to claim 1 , wherein the rod has a first portion extending from the bearing surface of the head, and a subsequent second portion, wherein the second portion has a diameter which is smaller than the diameter of the first portion.
6. Fixation pin according to claim 5 , wherein the first portion of the rod is connected to the second portion by an intervening third portion, said third portion having a conical shape.
7. Fixation pin according to claim 1 , wherein the fixation pin is made of one single piece.
8. Fixation pin according to claim 1 , wherein the fixation pin is made of a material selected from the group consisting of hard plastics, stainless steel, titanium and titanium alloys.
9. Fixation pin according to claim 8 , wherein the fixation pin is made of a material selected from the group consisting of titanium and titanium alloys.
10. Fixation pin according to claim 8 , wherein the fixation pin is made of stainless steel.
11. Fixation pin according to claim 1 , wherein the fixation pin further comprises an aspiration security.
12. Fixation pin according to claim 11 , wherein the aspiration security is a string attached to the head of the fixation pin.
13. A set comprising at least one fixation pin according to claim 1 .
14. A method comprising use of the fixation pin according to claim 1 for fixing a dental drill template while drilling a hole in a patient's jaw bone.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/617,327 US20150150656A1 (en) | 2008-12-01 | 2015-02-09 | Fixation pin |
US15/446,945 US10376342B2 (en) | 2008-12-01 | 2017-03-01 | Fixation pin |
US16/453,205 US11419706B2 (en) | 2008-12-01 | 2019-06-26 | Fixation pin |
US17/736,621 US11730573B2 (en) | 2008-12-01 | 2022-05-04 | Fixation pin |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EPEP08020837 | 2008-12-01 | ||
EP08020837.4A EP2191785B1 (en) | 2008-12-01 | 2008-12-01 | Fixation pin |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/617,327 Continuation US20150150656A1 (en) | 2008-12-01 | 2015-02-09 | Fixation pin |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100137921A1 true US20100137921A1 (en) | 2010-06-03 |
Family
ID=40600298
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/627,270 Abandoned US20100137921A1 (en) | 2008-12-01 | 2009-11-30 | Fixation pin |
US14/617,327 Abandoned US20150150656A1 (en) | 2008-12-01 | 2015-02-09 | Fixation pin |
US15/446,945 Active US10376342B2 (en) | 2008-12-01 | 2017-03-01 | Fixation pin |
US16/453,205 Active 2030-11-04 US11419706B2 (en) | 2008-12-01 | 2019-06-26 | Fixation pin |
US17/736,621 Active US11730573B2 (en) | 2008-12-01 | 2022-05-04 | Fixation pin |
Family Applications After (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/617,327 Abandoned US20150150656A1 (en) | 2008-12-01 | 2015-02-09 | Fixation pin |
US15/446,945 Active US10376342B2 (en) | 2008-12-01 | 2017-03-01 | Fixation pin |
US16/453,205 Active 2030-11-04 US11419706B2 (en) | 2008-12-01 | 2019-06-26 | Fixation pin |
US17/736,621 Active US11730573B2 (en) | 2008-12-01 | 2022-05-04 | Fixation pin |
Country Status (6)
Country | Link |
---|---|
US (5) | US20100137921A1 (en) |
EP (1) | EP2191785B1 (en) |
JP (2) | JP2010125322A (en) |
AU (1) | AU2009236017A1 (en) |
CA (1) | CA2685796A1 (en) |
ES (1) | ES2423032T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010052231A1 (en) * | 2010-11-24 | 2012-05-24 | Normed Medizin-Technik Gmbh | Medical implant |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4971401B2 (en) * | 2009-07-17 | 2012-07-11 | 株式会社アイキャット | Guide fixing pin |
WO2011037206A1 (en) * | 2009-09-24 | 2011-03-31 | 株式会社アイキャット | Guide affixing pin and method for performing implant surgery using same |
KR101841747B1 (en) * | 2017-12-22 | 2018-03-23 | 왕제원 | Check-direction pin and guide tab drill kit for implanting a fixture of implant |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5030092A (en) * | 1990-10-02 | 1991-07-09 | Cokeley Ricky R | Method and apparatus for temporary attachment of a safety line to dental restorations and appliances |
US5672178A (en) * | 1996-01-05 | 1997-09-30 | Petersen; Thomas D. | Fixation pin |
US20020137003A1 (en) * | 2001-03-20 | 2002-09-26 | Knapp John G. | Method and instrumentation for attaching dentures |
US20040259051A1 (en) * | 2001-12-28 | 2004-12-23 | Nobel Biocare Ab | Arrangement and device for using a template to form holes for implants in bone, preferably jaw bone |
US20060223029A1 (en) * | 2005-03-30 | 2006-10-05 | Uzi Berger | Method and system for fixing removable dentures |
WO2008009080A1 (en) * | 2006-07-20 | 2008-01-24 | De Clerck Rene | Drill jig for positioning dental implants |
US20080057475A1 (en) * | 2004-06-08 | 2008-03-06 | Johan Feith | Zirconium Oxide-Based Dental Implant And Method For Producing Said Dental Implant |
US20080071382A1 (en) * | 2004-01-19 | 2008-03-20 | University Of South Australia | Bioactive Coating of Biomedical Implants |
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US20080118892A1 (en) * | 2006-11-22 | 2008-05-22 | Curtis Adams | Dental implant |
EP1994909A1 (en) * | 2007-05-21 | 2008-11-26 | Straumann Holding AG | Try-in implant |
EP1994907B1 (en) * | 2007-05-21 | 2010-10-13 | Straumann Holding AG | Try-in implant |
-
2008
- 2008-12-01 EP EP08020837.4A patent/EP2191785B1/en not_active Revoked
- 2008-12-01 ES ES08020837T patent/ES2423032T3/en active Active
-
2009
- 2009-11-04 JP JP2009252956A patent/JP2010125322A/en active Pending
- 2009-11-06 AU AU2009236017A patent/AU2009236017A1/en not_active Abandoned
- 2009-11-18 CA CA2685796A patent/CA2685796A1/en not_active Abandoned
- 2009-11-30 US US12/627,270 patent/US20100137921A1/en not_active Abandoned
-
2015
- 2015-01-23 JP JP2015011306A patent/JP6450946B2/en active Active
- 2015-02-09 US US14/617,327 patent/US20150150656A1/en not_active Abandoned
-
2017
- 2017-03-01 US US15/446,945 patent/US10376342B2/en active Active
-
2019
- 2019-06-26 US US16/453,205 patent/US11419706B2/en active Active
-
2022
- 2022-05-04 US US17/736,621 patent/US11730573B2/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US5030092A (en) * | 1990-10-02 | 1991-07-09 | Cokeley Ricky R | Method and apparatus for temporary attachment of a safety line to dental restorations and appliances |
US5672178A (en) * | 1996-01-05 | 1997-09-30 | Petersen; Thomas D. | Fixation pin |
US20020137003A1 (en) * | 2001-03-20 | 2002-09-26 | Knapp John G. | Method and instrumentation for attaching dentures |
US20040259051A1 (en) * | 2001-12-28 | 2004-12-23 | Nobel Biocare Ab | Arrangement and device for using a template to form holes for implants in bone, preferably jaw bone |
US20080071382A1 (en) * | 2004-01-19 | 2008-03-20 | University Of South Australia | Bioactive Coating of Biomedical Implants |
US20080057475A1 (en) * | 2004-06-08 | 2008-03-06 | Johan Feith | Zirconium Oxide-Based Dental Implant And Method For Producing Said Dental Implant |
US20060223029A1 (en) * | 2005-03-30 | 2006-10-05 | Uzi Berger | Method and system for fixing removable dentures |
WO2008009080A1 (en) * | 2006-07-20 | 2008-01-24 | De Clerck Rene | Drill jig for positioning dental implants |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010052231A1 (en) * | 2010-11-24 | 2012-05-24 | Normed Medizin-Technik Gmbh | Medical implant |
EP2457530A1 (en) | 2010-11-24 | 2012-05-30 | NORMED Medizin-Technik GmbH | Medical implant |
Also Published As
Publication number | Publication date |
---|---|
US11730573B2 (en) | 2023-08-22 |
US20170231725A1 (en) | 2017-08-17 |
JP6450946B2 (en) | 2019-01-16 |
EP2191785B1 (en) | 2013-05-22 |
CA2685796A1 (en) | 2010-06-01 |
US10376342B2 (en) | 2019-08-13 |
AU2009236017A1 (en) | 2010-06-17 |
EP2191785A1 (en) | 2010-06-02 |
JP2010125322A (en) | 2010-06-10 |
JP2015097801A (en) | 2015-05-28 |
US20190314120A1 (en) | 2019-10-17 |
US20220304779A1 (en) | 2022-09-29 |
ES2423032T3 (en) | 2013-09-17 |
US11419706B2 (en) | 2022-08-23 |
US20150150656A1 (en) | 2015-06-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: STRAUMANN HOLDING AG,SWITZERLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SUTER, EDMUND;KUHNE, STEFFEN;STREFF, PATRICK;REEL/FRAME:023587/0464 Effective date: 20091117 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |