• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Dental fixation for dental prostheses comprising an elastic fixation element with shape memory (5) fixed to the dental prosthesis, whereby activation of the elastic fixation element with shape memory (5) by means of an external activating agent, occurs a change of geometry of said elastic fixing element with shape memory (5) which in turn produces a retention of the dental prosthesis to the dental implant (1), where the retention of the dental prosthesis to the dental implant (1) is maintained until a new external activating/deactivating agent produces a deactivation of the elastic fixing element with shape memory (5), said elastic fixing element with shape memory (5) modifying its geometry, releasing the dental prosthesis for its extraction from the mouth of the user. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2567484A2
    申请号:ES201431555
    申请日:2014-10-22
    公开日:2016-04-22
    发明作者:Rubén URZAINQUI BERISTAIN
    申请人:Createch Medical SL；
    IPC主号:
    专利说明:

    DESCRIPTION
    Dental fixation
    Object of the invention
    The present invention relates to a dental fixation for dental prostheses, configured from an intelligent material with memory so as to allow a firm attachment of the prosthesis to the dental implant, while allowing a simple placement and removal.

    It has application in the industry dedicated to the manufacture and implantation of dental prostheses. 10

    Technical problem to be solved and Background of the invention

    Currently, dentures are classified into two main groups: fixed prostheses and removable prostheses. fifteen

    Fixed prostheses are obtained by fixing screws or dental cement, so that the patient cannot remove it and it is only the doctor or dentist who can do it.
     twenty
    On the contrary, the removable prostheses are fixed by anchors, so that the patient can remove the prosthesis.

    The fixed prosthesis has the advantage of being more like natural teeth (which are not removable), but it has the great disadvantage of its limited hygiene. 25

    On the other hand, the removable prosthesis has the advantage of allowing perfect access for oral hygiene and cleaning of the prosthesis, but it has the disadvantage of producing in the patient some sensation of mobility and instability of the prosthesis, with the consequent lack of comfort that implies. 30

    The use of anchors in the field of implant-supported dentures, relative to removable prostheses installed on fixed implants, has been very frequent in recent years, being used to retain the prosthesis to the implant in a removable (removable) way. 35

    The implant is fixed to the patient's bone by osteo-integration, acting as the artificial support on which the mechanism that integrates the dental prosthesis to be inserted is fixed.

    The usual anchor consists of three parts: a threaded male component; a female component, and; a retentive element with some mechanical elasticity.

    In the current state of the art there are different types of anchorage with several retentive forms, where the most common are the following:
     10
    - Spherical shape: metallic anchor of ball-type maco and hemispherical female of Teflon or similar;

    - Cylindrical shape: metal anchor of cylindrical type male and cylindrical female "horse type"; fifteen

    - Toroidal shape: metal anchor of male toroid type and female in the same way, "locator type".

    All these types of anchorage are based on the elasticity of the retention element. 20 Plastic or metallic materials are often used, but always with an elastic capacity to change their geometry and return to it. Geometries and designs that favor the development of the elastic capacity of the retentive element are usually used. Minimum thicknesses that favor said elastic function are also used. 25

    However, the anchors that are currently available do not solve the great inconvenience of removable prostheses in general, and it is the feeling of discomfort and mobility that cause the user of the prosthesis.
     30
    The anchors that are currently available provide reduced stability to the prosthesis and sometimes they are not even able to properly retain the prosthesis.

    The dental fixation described below offers an adequate solution to the aforementioned problems and not resolved in the current state of the art.

    Description of the invention

    The object of the present invention is based on a dental fixation for dental prostheses, whose configuration and design allow the fixation between the prosthesis and the implant by means of the use of an intelligent material with shape memory. 5

    Said intelligent material with shape memory allows to preserve the shape of said material in at least two different configurations or geometries (being able to speak of "double shape memory").
     10
    The aforementioned intelligent material modifies its geometry only by the action of an external activating agent such as cold, heat, an applied electrical voltage, a beam of light or others. By modifying its geometry, it performs a mechanical locking function of the dental prosthesis to the implant.
     fifteen
    Said blocking is typically performed with the intermediation of other elements of the dental fixation, typically at least one female element where said intelligent material is inserted and a male element.

    According to a preferred embodiment of the invention, the female element is fixed to the dental prosthesis and the male element is anchored to the dental implant, typically through a screw.

    The dental fixation for dental prostheses that is presented, comprises a dental implant that is permanently inserted into the jaw bone of a dental prosthesis user.

    The dental fixation comprises an elastic fixation element with shape memory (composed of said intelligent material with shape memory) fixed to the dental prosthesis. 30

    The activation of the elastic fixing element with shape memory, carried out by means of an external activating / deactivating agent, produces any combination of the following effects:
     35
    or a change of geometry of said elastic fixing element with shape memory;

    or a hardening of said elastic fixing element with shape memory;

    or an increase in the pressure exerted by said elastic fixation element 5 with shape memory on the dental fixation;

    The activation of said elastic fixation element with shape memory produces a retention of the dental prosthesis to the dental implant.
     10
    The deactivation of the elastic fixing element with shape memory, carried out by means of an external activating / deactivating agent, produces any combination of the following effects:

    or a change of geometry of said elastic fixing element with shape memory;

    or a softening of said elastic fixing element with shape memory;
     twenty
    or a decrease in the pressure exerted by said elastic fixation element with shape memory on the dental fixation;

    The deactivation of said elastic fixation element with shape memory results in the release of the dental prosthesis with respect to the dental implant, allowing the removal of the dental prosthesis from the user's mouth.

    In this way, by means of the action of an external activating / deactivating agent, the dental prosthesis is retained to the dental implant until a new external activating / deactivating agent produces a deactivation of the elastic fixation element 30 with shape memory, releasing the dental prosthesis. for its extraction from the user's mouth.

    As already mentioned, the dental fixation preferably comprises a female element that houses inside the elastic fixation element with shape memory, where said female element adheres to the dental prosthesis
    by interlocking, by friction by means of a rough surface, or by adhesives (including cementing, resin or other methods).

    The female element comprises, according to a possible embodiment, holes that expose part of the elastic fixing element with shape memory, 5 to allow the activation of said elastic fixing element with shape memory by direct contact with an agent external trigger

    Likewise, as already mentioned, the dental fixation preferably comprises at least one male element that is fixed to the dental implant, where the retention of the dental prosthesis to the dental implant is caused by retention of the elastic fixation element with memory in a counter said female element and male element.

    In turn, the retention of said male element to the dental implant is typically carried out by means of a screw inserted inside a hole made internally in the male element, and screwed to the implant. Said screw is preferably of the self-tapping or self-tightening type, so that it allows the anchoring of the male element to practically any type of implant fixedly inserted in the jaw of a dental prosthesis user.
     twenty
    According to a possible embodiment of the dental fixation, the male element comprises a perimeter recess in which the elastic fixation element with shape memory is inserted after activation.

    According to a possible embodiment of the dental fixation, the elastic fixation element 25 with shape memory comprises a truncated ring-shaped geometry whose length covers approximately three quarters of a turn.

    The shape memory elastic fixing element typically comprises a straight section whose geometry comprises an internal angle with penetrating edge 30 towards the inside of the dental fixation. Said edge, after activation of the elastic fixing element with shape memory, penetrates into the perimeter recess of the male element (in those embodiments in which the male element comprises said perimeter recess).
     35
    Alternatively, the shape memory elastic fixing element may comprise a toroidal geometry with a circular, rectangular, straight section,
    square or other (or combination of the above), and penetrating into said perimeter recess of the male element.

    Said female element comprises, according to one of its possible embodiments, an internal annular recess in which the elastic fixing element 5 with shape memory is positioned, in the embodiment in which said elastic fixing element with shape memory It comprises an annular geometry.

    Alternatively, according to another possible embodiment of the present dental fixation for dental prostheses, the elastic memory element with shape memory 10 comprises a disk-shaped geometry with a lower cylindrical projection, wherein said cylindrical projection comprises at least one groove which it goes through diametrically.

    In this embodiment, the elastic fixing element with shape memory and disk-shaped memory 15 is inserted into the bottom of the female element and its cylindrical projection is inserted into a hole of the male element.

    According to a possible embodiment, the external activating / deactivating agent activates / deactivates the elastic fixation element with shape memory from the outside of the dental fixation, either by physically contacting said dental fixation from the outside, or creating a field that interacts from the outside with the elastic fixing element with shape memory.

    The external activating / deactivating agent comprises means selected from any combination of:

    or a magnetic field;

    or an electric field; 30

    or an electromagnetic field;

    or at least one contact terminal, at a certain temperature, which allows the activation / deactivation of the elastic fixing element with shape memory by heat transmission;

    or at least one contact terminal, at a certain electrical voltage, which allows the activation / deactivation of the elastic fixing element with shape memory by electrical contact;
     5
    or at least one light source, which produces the activation / deactivation of the elastic fixing element with shape memory by lighting said elastic fixing element with shape memory.

    Brief description of figures 10
    As part of the explanation of the embodiment of the invention, a series of figures are included, the explanation of which is as follows:

    Figure 1: Shows a sectional view of a first embodiment of the dental fixation. fifteen

    Figure 2: Shows a sectioned perspective (according to section AA indicated in figure 1), of the first embodiment of the dental fixation.

    Figure 3: Shows a sectional view of a second embodiment of the dental fixation.

    Figure 4: Shows an exploded perspective view of the second embodiment of the dental fixation.
     25
    Detailed description

    The present invention relates, as already mentioned above, to a dental fixation for dental prostheses.
     30
    The elements that make up the dental fixation are: an implant (1), a male fixing element (2), a screw (4) for anchoring the male element (2) to the implant (1), a female element (3) of fixation of the prosthesis, and an elastic fixation element with shape memory (5).
     35
    Said elements are common to the two proposed embodiments, shown in Figures 1 to 4. Both embodiments differ in the geometry of the elements that comprise them, and in the way of actuating the elastic fixing element with memory of shape (5).
     5
    Figures 1 and 2 show the first proposed embodiment of the invention. It is observed that the male element (2) is fixed to the implant (1) by means of a screw (4) that is inserted into a hole made inside said male element (2).

    On the other hand, the female element (3) hugs and plugs superiorly to the male element 10 (2). Inserted in an internal annular recess of the female element (3), which coincides with a corresponding external annular prominence of said female element (3), is located the elastic fixing element with shape memory (5).

    According to the first proposed embodiment, the female element (3) comprises two orifices (6) made on the external annular prominence, which are through to the internal annular recess, so that they bring into contact the elastic fixing element with memory shape (5) with the outside of the dental fixation.

    The elastic fixing element with shape memory (5) comprises a geometry 20 in the form of a truncated ring, approximately three quarters of a turn in length, and is positioned inside the internal annular recess of the female element (3) in such a way that the holes (6) do not coincide with the truncation zone of said elastic fixing element with shape memory (5).
     25
    The geometry of the section of said elastic fixing element with shape memory (5) comprises an internal perimeter angle with penetrating edge towards the inside of the dental fixation, said angle coinciding with the angle of a perimeter recess practiced on the outside of the element male (2).
     30
    According to the second proposed embodiment of the dental fixation, shown in Figures 3 and 4, it is observed that the elastic fixation element with shape memory (5) has a disk shape with a cylindrical projection on its lower face, said projection cylindrical comprising at least one groove that goes through it diametrically.
     35
    In this second embodiment, the female element (3) does not comprise external annular prominence or internal annular recess. On the contrary, the element of
    elastic fixation with shape memory (5) is inserted internally at the bottom of the female element (3).

    When said female element (3) plugs superiorly to the male element (2), the grooved cylindrical projection of the elastic fixing element with shape memory (5) 5 is inserted into a hole of the male element (2).

    The operation of the elastic fastener of the invention is explained below.

    The elastic fixing element with shape memory (5) has the property of modifying its geometry in the presence of an external activating agent, which can be an electromagnetic field, a difference of electric potential applied between two points of the fixing element elastic with shape memory (5), a physical contact with a material at a temperature that causes the activation and modification of the geometry of the elastic fixing element with shape memory 15 (5), an electronic circuit embedded and custom designed , which causes the activation and modification of the geometry of the elastic fixing element with shape memory (5) before an external electrical contact or the presence of an external electrical or electromagnetic field, etc.
     twenty
    The elastic fixing element with shape memory (5) allows to maintain the shape of said element in at least two different configurations or geometries (being able to speak of "double shape memory"), modifying its geometry only after the activation / deactivation of said elastic fixing element with shape memory (5) by means of an external activation agent. 25

    In the first proposed embodiment of the dental fixation, the activation and deactivation of the elastic fixation element with shape memory (5) occurs through the holes (6) of the female element (3).
     30
    According to a preferred embodiment of said first embodiment, an electric potential difference is applied between two electrical terminals that come into contact with the elastic fixing element with shape memory (5), respectively through each of said holes (6). The deactivation of the elastic fixing element with shape memory (5) is preferably produced by the application of said terminals with a polarity opposite to that caused by their activation.

    According to a first alternative embodiment of said first embodiment, an electric or electromagnetic field is applied by means of two terminals that approach or come into contact with the elastic fixing element with shape memory (5), respectively through said holes (6). The deactivation of the elastic fixation element with shape memory (5) is preferably produced by applying said terminals with a polarity opposite to that caused by their activation.

    According to a second alternative embodiment of said first embodiment of the dental fixation, the activation of the elastic fixation element with shape memory (5) 10 is produced by contact with said elastic fixation element with shape memory (5), through at least one of said holes (6), of at least one terminal at a certain temperature other than the temperature at which the elastic fixing element with shape memory (5) is located. In this case, the deactivation of the elastic fixing element with shape memory (5) proceeds in the same manner as for its activation.

    According to a third alternative embodiment of the first embodiment of the dental fixation, the female element (3) does not comprise the mentioned holes (6) in its external annular prominence, so that the activation / deactivation of the elastic fixing element with shape memory (5) is produced without direct contact of the external activation agent with said elastic fixing element with shape memory (5). In this case, the external activation agent may be an electric or electromagnetic field applied in the vicinity of the female element (3), or at least one terminal in contact with the female element (3), said terminal being at a temperature or determined electrical voltage, said temperature or electrical voltage being transmitted to the elastic fixing element with shape memory (5) through the female element (3).

    When the elastic fixing element with shape memory (5) is activated, 30 modifies its geometry permanently until it is deactivated, reducing its internal diameter and adjusting to the male element (2), imprisoning it, while remaining inserted in the internal annular recess of the female element (3).

    Alternatively to what was mentioned in the previous paragraph, it is possible that the elastic fixing element with shape memory (5) is inserted without play between the female element (3) and the male element (2), from the beginning, already in its deactivation state. In this case, after activation of the fixing element
    elastic with shape memory (5), the modification of the geometry of said elastic fixing element with shape memory (5) does not occur, because the relative arrangement of the different elements does not allow such geometry modification. Therefore, the activation of the elastic fixing element with shape memory produces an increase in the pressure on the male element (2) and the female element 5 (3), due to the tendency to modify its geometry of the elastic fixing element with shape memory (5), modification which, as mentioned, is prevented by the geometric arrangement without relative clearance between the male element (2), the elastic fixing element with shape memory (5) and the female element ( 3). The mentioned increase in pressure exerted by the elastic fixation element 10 with shape memory (5) causes the retention of the female element (3) to the male element (2) of the dental fixation.

    Since said female element (3) is in turn inserted in the dental prosthesis, said prosthesis is gripped through a rough or knurled outer surface 15 of the female element (3), the male element (2) and the female element ( 3) they are retained from each other by means of the elastic fixation element with shape memory (5) when the activation of said elastic fixation element with shape memory (5) occurs, therefore the dental prosthesis is well fixed to the implant (1).
     twenty
    In the second embodiment of the dental fixation shown in Figures 3 and 4, the elastic fixation element with shape memory (5) does not offer any contact surface with the outside of the dental fixation.

    Therefore, the elastic fixing element with shape memory (5) is preferably activated by the application of an electric or electromagnetic field, and is deactivated by the application of another electric or electromagnetic field of polarity contrary to the field that causes its activation .

    However, also in the second dental embodiment, the elastic fixing element with shape memory (5) could offer at least one contact surface with the outside (not shown in Figures 3 and 4), through holes in the female element (3), as in the first embodiment proposed for dental fixation.
     35
    As already mentioned, the activation and deactivation of the elastic fixation element with shape memory (5) in any of the two proposed embodiments of the dental fixation, can be produced by an electronic circuit
    embedded in said elastic fixing element with shape memory (5), a circuit that would be activated by electrical contact with external terminals, or by application of an electric or electromagnetic field.

    Likewise, it is also possible to activate the elastic fixing element with shape memory (5) by applying light radiation in any spectrum, be it white light, ultraviolet light, etc.

    In the second embodiment of the dental fixation, when the activation of the elastic fixation element with shape memory (5) occurs, it modifies its geometry, such that the grooved cylindrical projection presses against the surface of the male element (2), the female element (3) being retained against the male element (2), such that the prosthesis, which is held against the female element (3) by the rough or knurled surface of said female element (3) , is in turn retained to the male element (2) and consequently, to the implant (1). fifteen

    Alternatively, as mentioned for the first embodiment proposed for dental fixation, it is possible that in this second embodiment the elastic fixation element with shape memory (5) is inserted without play between the element female (3) and the male element (2), from the beginning. 20 In this case, the modification of the geometry of the elastic fixing element with shape memory (5) is prevented by said geometric arrangement without clearance, relative between the male element (2), the elastic fixing element with shape memory ( 5) and the female element (3). Therefore, the activation of the elastic fixing element with shape memory (5) causes an increase in pressure thereof on the male element (2) and the female element (3), due to its tendency to modify its geometry ( modification which, as we have explained, does not occur in the case of this relative provision without clearance). Said increase in pressure produced after the activation of the elastic fixing element with shape memory (5) allows the retention of the female element (3) to the male element (2) and, therefore, the correct fixation of the prosthesis.

    In the cases mentioned in which the elastic fixing element with shape memory (5) is inserted without play between the female element (3) and the male element (2), the elastic fixing element with shape memory (5) changes its consistency 35 after activation, going from being softer to being harder. On the contrary, the deactivation of the elastic fixation element with shape memory (5) causes a change in its consistency, going from being harder to being softer.
    权利要求:
    Claims (1)
    [1]
    CLAIMS 1. Dental fixation for dental prostheses comprising a dental implant (1) that is permanently inserted into the jaw bone of a dental prosthesis user, characterized by comprising an elastic fixation element with shape memory (5) fixed to the configured dental prosthesis to retain the dental prosthesis to the dental implant (1) when activated by an external activating / deactivating agent, and to release the dental prosthesis with respect to the dental implant (1) when deactivated by an external activating / deactivating agent, allowing extraction of the dental prosthesis 10 of the user's mouth, where the activation / deactivation of the elastic fixation element with memory shape (5) by means of an external activating / deactivating agent produces any combination of: o a change in geometry of said elastic fixation element with memory shape (5); or a hardening / softening of said elastic fixing element with memory shape (5); 20 or an increase / decrease in the pressure exerted by said elastic fixation element with shape memory (5) on the dental fixation. 252. Dental fixation according to claim 1, characterized by comprising a female element (3), where said female element (3) adheres to the dental prosthesis by interlocking, by friction by means of a rough surface or by means of adhesives. 303 Dental fixation according to claim 2, characterized in that the female element (3) houses the elastic fixation element inside with shape memory (5).Dental fixation according to claim 3, characterized in that the female element (3) comprises holes (6) that expose part of the elastic fixation element with shape memory (5), to allow the activation of said fixation element elastic shape memory (5) by direct contact with an external activating agent. 55. Dental fixation according to claim 1, characterized by comprising a male element (2) that is fixed to the dental implant (1). 6. Dental fixation according to the Claims 3 and 5, characterized in that the retention of the dental prosthesis to the dental implant (1) is produced by retention of the elastic fixation element with shape memory (5), housed inside the female element (3), against said male element (2) and said female element (3). 157. Dental fixation according to claim 6, characterized in that the male element (2) comprises a perimeter recess where the elastic fixation element with memory is inserted. ia shape (5) after activation. 8. Dental fixation according to claim 1, characterized in that the elastic fixation element with shape memory (5) comprises a truncated ring-shaped geometry whose length spans approximately three-quarters of a turn. Dental fixation according to claim 7, characterized in that the elastic fixation element with shape memory (5) comprises a straight section whose gageometry comprises an internal angle with a penetrating edge inside the perimeter recess where said elastic fixation element with memory of shape (5) after activation 3010. Dental fixation according to claim 7, characterized in that the elastic fixation element with shape memory (5) comprises a penetrating toroidal geometry inside the perimeter recess where said fixation element is inserted shape memory elastic (5) and a straight section whose geometry is selected from: 35ocircular; or rectangular; 5 combination of the foregoing. 11. Dental fixation according to claims 3 and 8, characterized in that the female element (3) comprises an internal annular recess in which the shape memory elastic fixation element (5) is positioned. 1012 Dental fixation according to claim 1, characterized in that the elastic shape memory fixation element (5) comprises a disk-shaped geometry with a lower cylindrical projection, wherein said cylindrical projection comprises at least one groove that passes diametrically through it. Dental fixture according to claims 6 and 12, characterized in that the elastic shape memory fixture (5) is inserted into the bottom of the female element (3) and its cylindrical projection is inserted into a hole in the male element (2). 2014. Dental fixation according to claim 5, characterized by comprising a screw (4) of the self-tapping type that fixes the male element (2) to the dental implant (1). 2515. dental tooth according to claim 1, characterized in that the external activating / deactivating agent activates / deactivates the elastic shape memory fixation element (5) from outside the dental fixation. 16. dental fixation according to claim 1, characterized in that the External activating / deactivating agent comprises means selected from any combination of:oa magnetic field; oan electric field; oan electromagnetic field; 5o at least one contact terminal, at a certain temperature, which allows the activation / deactivation of the elastic fixing element with shape memory (5) by heat transmission; 10o at least one contact terminal, at a given electrical voltage, which allows the activation / deactivation of the elastic fixing element with shape memory (5) by electrical contact; or at least one light source, which produces the activation / deactivation of the elastic fixing element with shape memory (5) by illumination of said elastic fixing element with shape memory (5).
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    同族专利:
    公开号 | 公开日
    EP3011928A1|2016-04-27|
    ES2567484R1|2016-10-14|
    ES2567484B1|2017-07-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP4369491B2|2007-03-08|2009-11-18|正雄 金子|Dental prosthesis maintenance device|
    KR100884614B1|2007-05-28|2009-02-23|이규호|Implant for Dentistry|
    US8047844B2|2009-07-16|2011-11-01|Rodo Medical, Inc.|Dental rentention systems|
    KR101401793B1|2013-04-26|2014-05-29|김형우|Dental implant|FR3053884A1|2016-06-10|2018-01-19|Claude Bes|DEVICE FOR RETENTIVELY AND REMOVABLY CONNECTING A DENTAL PROSTHESIS TO IMPLANTS OR FALSE LEGS|
    FR3083078A1|2019-07-02|2020-01-03|Claude Segura|DEVICE FOR RETENTIVE AND REMOVABLE CONNECTION OF A DENTAL PROSTHESIS TO IMPLANTS OR ABUTMENTS|
    法律状态:
    2015-11-30| PC2A| Transfer of patent|Owner name: CREATECH MEDICAL, S.L. Effective date: 20151124 |
    2017-07-24| FG2A| Definitive protection|Ref document number: 2567484 Country of ref document: ES Kind code of ref document: B1 Effective date: 20170724 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201431555A|ES2567484B1|2014-10-22|2014-10-22|DENTAL FIXATION|ES201431555A| ES2567484B1|2014-10-22|2014-10-22|DENTAL FIXATION|
    EP15190824.1A| EP3011928A1|2014-10-22|2015-10-21|Dental fixation device|
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