WO2018091506A1

WO2018091506A1 - Scan body for a laboratory analog system

Info

Publication number: WO2018091506A1
Application number: PCT/EP2017/079279
Authority: WO
Inventors: Curd Gadau
Original assignee: Curd Gadau
Priority date: 2016-11-18
Filing date: 2017-11-15
Publication date: 2018-05-24
Also published as: DE102016122201B4; DE102016122201A1

Abstract

The present invention relates to a scan body (100) for a laboratory analog system, comprising a cylindrical pin portion (107) which comprises an outer guide groove (101) for insertion of the scan body (100) into a cylindrical part (105) in the accurate orientation.

Description

SCANNER FOR A LABORATORY ANALOG SYSTEM

The present invention relates to a scanbody for

Determination of positioning and orientation of a

Dental implant in an impression model.

A laboratory analogue system serves for the spatial simulation of a connection and position of a dental implant in one

Impression model, such as a plaster or

Plastic model. It is important that the spatial conditions within a molded dentition are reproduced as accurately as possible. To the positioning and

To determine the orientation of a dental implant scanbodies are used. By means of optical scanning processes, the scan body is exactly three-dimensional in the impression model

detectable.

It is the object of the present invention to provide a

To facilitate positioning of a scanbody in an impression model.

This technical problem is solved by objects according to the independent claims. Advantageous embodiments are the subject of the dependent claims, the description and the figures.

According to a first aspect, this object is achieved by a

Scanbody solved for a laboratory analogue system, with a

cylindrical pin portion having an outside

Guide groove for orientation correct insertion of

Scanbörpers comprises in a sleeve. Through the guide groove, the scanbody can quickly and easily in the

provided position in the sleeve used in the molding model and fixed. In an advantageous embodiment of the scanbody, the guide groove extends in the longitudinal direction of the

Stick portion. As a result, for example, the technical advantage is achieved that the scanbody is guided in the longitudinal direction when inserted into the sleeve.

In a further advantageous embodiment of the

Scanbörpers the pin portion comprises a projecting ring portion for supporting on the sleeve. As a result, for example, the technical advantage is achieved that an exact positioning of the scanbody occurs.

In a further advantageous embodiment of the

Scanbörpers, the guide has a rectangular profile. As a result, for example, the technical advantage is achieved that the scanbody is guided with little play in the direction of movement.

In a further advantageous embodiment of the

Scank bodies the guide groove at the end of a semi-circular profile. As a result, for example, the technical advantage is achieved that in conjunction with the cylindrical

Guide section a large and stable contact surface. In a further advantageous embodiment of the

Scanbörpers the Scanbörper comprises a locking device for locking the Scankörpers on an inner side of the sleeve.

As a result, for example, the technical advantage is achieved that an unintentional release of the scanbody is prevented and this is held in an end position.

In a further advantageous embodiment of the

Scanbörpers the latching device comprises a spring portion which is movable in the radial direction of the pin portion. As a result, the technical advantage is achieved, for example, that the scanbody engages in a simple manner in the sleeve.

In a further advantageous embodiment of the

Scanbörpers the scanbody comprises a securing element for blocking a radial movement of the spring portion. As a result, for example, the technical advantage is achieved that the scanbody can be fixed in the sleeve. In a further advantageous embodiment of the

Scanbörpers the scanbody includes a thread for screwing the fuse element. As a result, for example, the technical advantage is achieved that the scanbody in a simple manner by means of a rotational movement of the

Fix and release securing element.

In a further advantageous embodiment of the

Scanbörpers is the spring portion in one piece

Pin section formed. As a result, for example, the technical advantage is achieved that a production of

Scank body is simplified.

In a further advantageous embodiment of the

Scanbörpers the spring portion comprises a latching projection for engaging behind an inwardly projecting projection in the interior of the sleeve. As a result, for example, the technical advantage is achieved that the spring portion during the sliding of the

Locking projection is fixed over the projection of the sleeve. In a further advantageous embodiment of the

Scanbörpers the latch comprises a second

A spring portion disposed on an opposite side of the pin portion to the first spring portion. As a result, for example, the technical advantage is achieved that a two-sided and symmetrical fixation of the scanbody is achieved.

In a further advantageous embodiment of the

Scanbörpers, the scanbody at an insertion tip on a ring portion with a smaller Außendurmesser than in the central region of the Scankörpers. This will

For example, the technical advantage achieved that the

Scanbörper can slide over an inwardly projecting projection at the bottom of the sleeve.

In a further advantageous embodiment of the

Scanbörpers includes the Scanbörper a ceramic coating. As a result, for example, the technical advantage is achieved that reflections on the scanbody during optical scanning are prevented.

In a further advantageous embodiment of the

Scanbörpers the scanbody has a cross section

triangular head up. As a result, for example, the

technical advantage achieved that the orientation of the

Scanbörpers can be detected easily.

According to a second aspect, this object is achieved by

Laboratory analog system solved, with a scanbody, which has a cylindrical pin portion with an outside

Guide groove for orientation correct insertion of

Scanbörpers comprises in a sleeve; and a sleeve having an inwardly projecting guide portion for guiding the

Scanbörpers along the guide groove. This allows the same technical advantages as achieved by the scanbody according to the first aspect.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below. Show it:

Fig. 1 perspective views of a scanbody;

FIG. 2 is a side view of the scanbody; FIG.

Fig. 3 is a side cross-sectional view and a

Bottom view ;

4 shows a side view of the scanbody in connection with a sleeve; and

Fig. 5 shows a further side view of the scanbody in

Connection with the sleeve.

1 shows perspective views of a scanbody 100. The scanbody 100 is part of a laboratory analogue system and serves for the spatial simulation of a connection and a position of a dental implant in an impression model, such as a gypsum or plastic model. For this purpose, the scanbody 100 used is scanned in conjunction with the gypsum or plastic model by means of optical methods. By these methods, the spatial conditions of the impression model can be transferred to a digital data set.

In order to prevent reflections during optical scanning, the scan body 100 is coated with a non-reflective material, such as a plasma ceramic coating on aluminum (AL 6081.5083 or 7075) or titanium (3.7165 Ti-6A1-4V). By coating with this material can be a uniform and small layer thickness

reach, which changes the dimensions of the scanbody 100 as little as possible. Furthermore, the coating can also be based on a white anodization or by means of a Teflon-based paint can be performed. The scanbody 100 is made of plastic and has, for example, a diameter of 3.5 mm and a height of 24 mm. At the bottom, the scanbody 100 includes a

Locking device 113 for locking the scarf body 100 on an inner side of a sleeve. When inserting the scanbody 100 into the sleeve, the latching device 113 engages and holds the scanbody 100 in its end position. As a result, the scanbody 100 is fixed in the sleeve.

The scanbody 100 comprises a triangular head 103, which indicates the orientation of the scanbody 100. The head 103 is at the top of a cylindrical one

Pin portion 107 arranged.

In the center of the cylindrical pin portion 107, an outwardly projecting annular portion 109 is formed, which is present in the end position after insertion at the upper edge of the sleeve. The scanbody 100 can with different

Diameters are designed and used to replace scanbodies from other manufacturers.

FIG. 2 shows a side view of the scarf body 100. In order to enable an orientation-correct insertion of the scanbody 100 into a sleeve, the scanbody 100 comprises an in

In the longitudinal direction extending guide groove 101. An inwardly projecting guide portion of the sleeve slides during insertion within the guide groove 101 to this at the end of

Guide groove 101 strikes. The guide groove 101 has a rectangular cross-section profile. In general, however, the guide groove 101 may also have other profiles.

At the upper end of the guide groove 101, a half-round profile 111 is formed as a stop, to which when inserting the scanbody 100, the inner guide portion of the sleeve 105 abuts.

This results in connection with the cylindrical

Guide section a large and stable contact surface. Fig. 3 shows a side cross-sectional view and a

Bottom view of the Scankörpers 100. The spring portions 115 of the latching device 113 are formed as spring arms and in the radial direction of the pin portion 107 resiliently inwardly movable. This allows the spring portions 115 during

Inserting the scanbody 100 in the sleeve are pressed elastically inwards.

The spring sections 115 hold the scanbody 100 in the sleeve and, in the end position of the scanbody 100, engage in the sleeve behind a circumferential and inwardly projecting projection. The spring portions 115 are an integral part of the pin portion 107 and are integrally formed in the

Pin portion 107 formed. Laterally, the guide groove 101 can be seen.

The pin portion 107 includes a lower side

cylindrical recess 131, in which a securing element can be arranged, that the radial movement of the

Spring sections 115 prevents. Thus, the scanbody 100 can be fixed in the sleeve.

FIG. 4 shows a side view of the scanbody 100 in FIG

Connection with the sleeve 105 in a laboratory analog system 200. The sleeve 105 is used for anchoring in a molding model and comprises an inwardly projecting, cylindrical

Guide portion 117. Inside the sleeve 105 is

cylindrical cavity formed in the cylindrical

Pin portion 107 of the scanbody 100 is inserted. In this cavity, the pin-shaped guide portion 117 protrudes, which is inserted through a radially from the outside Molded body is formed. The sleeve 105 comprises an opening 133 through which the inserted molding used to form the

Guide portion 117 projects into the interior of the sleeve 105. The molded body forming the guide portion 117 is located at the upper end of the guide groove 101.

The guide groove 101 guides the scanbody 100 to the

Guide portion 117 when inserted into the sleeve 105. The guide portion 117 is disposed in that half of the sleeve 105, which includes an insertion opening for the scanbody 100. As a result, the scanbody 100 can already be turned into the correct orientation when it is still in a far-out position. The sleeve 105 is poured into an impression model of the denture and anchored in this. The sleeve 105 is formed of metal and has, for example, an inner diameter of 3 mm, an outer diameter of 4 mm and a height of 10 mm. Inside the sleeve 105, the circumferential and inwardly projecting projection 121 is arranged with a V-profile, on which the spring sections 115 engage, so that the scanbody 100 engages in the end position. After the production of the molding model with the sleeve 105 of the scanbody 100 is inserted coaxially into the cavity of the sleeve 105 and by means of a

Locking screw 125 fixed.

A rotation of the scraper body 100 used is prevented by the guide portion 117, which projects into the guide groove 101. If the scanbody 100 is first inserted from above in an unintended orientation, the

Guide portion 117 inside the sleeve 105 at the

Lower edge of the scanbody 100 at. An insertion of the

Scanbörpers 100 in an orientation in which the Guide portion 117 is not located in the guide groove 101, is thus not possible.

Only when the scan body 100 is rotated such that the guide groove 101 is in accordance with the inner guide portion 117 of the sleeve 105, a further insertion of the scanbody 100 is made possible. This ensures that the scanbody 100 is always in the correct orientation in the end position. As a result, the scanbody 100 can initially reach a certain depth

be introduced. After a subsequent turning of the

Scanbörpers 100 in the intended position, the

Slide the scanbody deeper into the sleeve 105. In the lower region of the scanbody 100, a ring portion 119 having a smaller outer diameter than in the central region of the scanbody 100 is arranged. By the

Ring portion 119 with a smaller outer diameter, the scanbody 100 in the lower region during insertion partially over the circumferential and inwardly projecting projection 121 in the interior of the sleeve 105 to slide, for engaging the

Spring sections 115 is used.

The guide groove 101 extends through the ring portion 119, so that upon rotation of the scanbody 100 along the

Bottom edge is created a haptic perception for the user when the guide portion 117 within the

Guide groove 101 is located. The sleeve 105 is anchored in the impression model of the denture, such as a plaster or plastic model. For this purpose, the cylindrical sleeve 105 at the

Outside a rhombic profiling 129 with depressions into which the gypsum penetrates. As a result, the sleeve 105 anchored firmly and against rotation in the molding model or be attached. In addition, the sleeve 105 may include one or more flats, which also prevent twisting of the sleeve 105 in the molding model. FIG. 5 shows a further side view of the scanbody 100 in conjunction with the sleeve 105. The guide groove 101 of FIG

Scanbörpers 100 has a length which corresponds to at least half the height of the sleeve 105.

The scanbody 100 is located in the interior of the sleeve 105 in the end position, in which the outwardly standing annular portion 109 of the scanbody 100 bears against the sleeve 105. By the

Ring section 109, the scanbody 100 is additionally supported in its end position within the sleeve 105 at the upper edge of the sleeve 105.

The locking screw 125 as a securing element is screwed into a thread 127 in the opening 133, so that a release of the scanbody 100 from the sleeve 105 is prevented. The spring portions 115 abut on the locking screw 125. A radial movement of the spring portions 115 can by

Screwing the locking screw 125 can be prevented. After unscrewing the locking screw 125, the spring portions 115 can move radially, so that the scanbody 100 can be solved again.

The spring portions 115 each include a protruding locking projection 123 which slides on insertion over the circumferential and inwardly projecting projection 121 of the sleeve 105 and then snaps behind the projection 121.

All in connection with individual embodiments of

Invention explained and shown features can in

different combination in the invention Be provided subject to simultaneously realize their beneficial effects.

The scope of the present invention is given by the claims and is not limited by the features illustrated in the specification or shown in the figures

limited.

LIST OF REFERENCE NUMBERS

100 scanbodies

101 guide groove

103 head

105 sleeve

107 pin section

109 ring section

111 Semicircular profile

113 latching device

115 spring section

117 guiding section

119 ring section

121 advantage

123 locking projection

125 Safety element / safety screw

127 thread

129 profiling

131 recess

133 opening

Claims

A scanbody (100) for a laboratory analog system, comprising: a cylindrical pin portion (107) including an outside guide groove (101) for orientably inserting the scanbody (100) into a sleeve (105).

2. Scanbörper (100) according to claim 1, wherein the

Guide groove (101) in the longitudinal direction of the pin portion (107).

3. Scanbörper (100) according to any one of the preceding claims, wherein the pin portion (107) has a protruding

Ring portion (109) for supporting on the sleeve (105).

4. Scanbörper (100) according to any one of the preceding claims, wherein the guide groove (101) has a rectangular profile.

5. Scanbörper (100) according to any one of the preceding claims, wherein the guide groove (101) at the end of a semi-circular profile (111).

6. Scanbörper (100) according to any one of the preceding claims, wherein the Scanbörper (100) comprises a latching means (113) for engaging the Scankörpers (100) on an inner side of the sleeve (105).

7. Scanbörper (100) according to claim 6, wherein the

Locking means (113) comprises a spring portion (115) which is movable in the radial direction of the pin portion (107).

8. scanbody (100) according to claim 7, wherein the scanbody (100) comprises a securing element (125) for blocking a radial movement of the spring portion (115).

9. Scanbörper (100) according to claim 8, wherein the scanbody (100) has a thread (127) for screwing in the

Secured element (125). 10. Scanbörper (100) according to any one of claims 7 to 9, wherein the spring portion (115) is integrally formed in the pin portion (107).

11. Scanbörper (100) according to any one of claims 7 to 10, wherein spring portion (115) has a latching projection (123) for

Behind engaging an inwardly projecting projection (121) in the interior of the sleeve (105).

12. Scanbörper (100) according to any one of claims 7 to 11, wherein the latching device (113) has a second spring portion

(115) disposed on an opposite side of the pin portion (107) to the first spring portion (115). 13. Scanbörper (100) according to any one of the preceding claims, wherein the scanbody (100) at an insertion tip a ring portion (119) with a smaller

Outside diameter than in the central region of the scanbody (100).

14. scanbody (100) according to any one of the preceding claims, wherein the scanbody (100) comprises a ceramic coating. 15. Laboratory analogue system (200), with: a scanbody (100) having a cylindrical

Pin portion (107) having an outside guide groove (101) for orientation correct insertion of the scanbody (100) into a sleeve (105); and a sleeve (105) having an inwardly projecting

Guide portion (117) for guiding the scanbody (100) along the guide groove (101).