DE102009052838A1 - Container i.e. revolver tray, for keeping e.g. Transgingival screw that is screwed in jaw bone in patient, during reconstructive surgery in orthodontics area, has recesses whose paths possess same distance to points, during superimposition - Google Patents

Abstract

The container has form recesses provided in a base (TB) and arranged in a circular path around a central point of the base, where screws (S) are inserted in the form recesses. Another form recesses are provided around a central point of a cover (TD). The base and cover are made of transparent or lucent material. The circular paths of the form recesses of the base and the cover possess same distance to the central points of the base and the cover, during superimposition of the central points of the base and cover.

Description

The invention relates to a container (tray) which for storing screws which are screwed into the bone, preferably in the human jaw. The invention serves the purpose of simplification, clarity, ergonomics and error prevention in dealing with the container and the screws.

In orthodontics, the main therapeutic goal is the targeted and controlled movement of teeth. Such a translational or rotational movement of a tooth is only possible by a force is applied to the tooth to the appropriate extent, which can move this against the jaw. This force is then applied over suitable fixing means over comparatively long periods of time on the respective tooth, until it assumes the desired positioning and / or orientation in the oral cavity. However, a suitable support of the force-exerting element in the oral cavity is necessary for targeted application of a tooth with such a suitably chosen force, for example via brackets, wires, rubbers or other suitable force-exerting elements.

Usually, such a support of the force-applying elements is made on a further tooth, for example, two suitably positioned teeth are connected to each other via a clamping element, which is then biased to train. However, such an approach has the disadvantage that it conceptually two teeth are applied symmetrically with forces, but this is actually intended and desired only for one of the teeth. The targeted repositioning of the one tooth is thus inevitably associated with an undesirable or only conditionally acceptable change in position of the other tooth.

In order to counteract this, an anchoring via one-piece temporary screws, the so-called orthodontic anchoring screws, can also be carried out, which are temporarily introduced into the jawbone and removed again after the tooth has been displaced. In contrast to dental implant materials, which are designed for a permanent integration in the jawbone and the longest possible stable ingrowth, anchoring screws of this kind must therefore be introduced in such a way that a later removal from the bone remains possible. In contrast, when using such anchoring screws but necessarily to be noted that during the active therapy phase, ie during the actual application of force of the desired forces in the tooth requiring treatment, a reliable and resilient fit of the respective, provided as counterpoint anchoring screw is essential.

For supporting prostheses or for securing and / or supporting other aids, screws are used which are preferably screwed into the bone in the jawbone and protrude through the skin or mucous membrane in order to fix them to them or to use them as an abutment for support ,

In reconstructive surgery, after bone fractures or bone segment transplantation, screws are used to fix these bone segments. For stabilization also plates, usually made of titanium or a titanium alloy are used, which are fastened by screws to the bone. These screws are commonly referred to as Osseosyntheseschrauben.

Screws that are screwed into the bone in their application have special storage conditions before screwing into the bone to ensure sterility. With dental implants, these are individually packaged and sterilized by the manufacturer under the purest conditions. This means that each individual implant is in a separate individual packaging and is usually only opened during the operation in order to insert it directly into the bone, usually screw it in.

Such a process is particularly necessary if a surface-roughening treatment was carried out as a whole or only partially with the implant or the screw to be introduced into the bone. The rougher a surface is the greater the risk that impurities accumulate on it that are difficult or impossible to remove. Therefore implants that have been heavily roughened are packaged sterile and immediately screwed into the bone after opening the package. If the implants remain free of a roughening process or if only a small degree of roughening is carried out, sterile packaging can be dispensed with by the manufacturer. Such implants or screws can be sent to the practitioner without sterilization. The dentist takes over the sterilization and possibly also a previous cleaning of the implants or screws. With orthodontic mini implants, Transgingivalschrauben and Ossteosyntheseschrauben a sterile dispatch of screws from the manufacturer to the practitioner is rarely practiced. Usually, these are packaged cleanly by the manufacturer, but first sterilized by the attending physician. Since it is usually delivered in unclean packaging, usually has to be cleaned before.

Partially the screws are also welded in sterile hoses. Sterile hoses initially consist of two foils / paper foils welded together in such a way that they form a tube structure. One of the slides is translucent to see what is in it. The other film is permeable to water vapor. Both films are not bacteria permeable. In this tube can be introduced to be sterilized objects. After both ends of the tube are welded, the inside of the tube can be sterilized with steam in a sterilizer.

In most cases, the screws are unpacked at the attending physician and incorporated or sorted into a specially designed and reusable (re-sterilizable) packaging or housing. In these cases, the tool needed for screwing is often stored. These cases are called trays. The and show two possible versions of trays in which the screws sorted and can be stored with and without tools or accessories. These trays are sealed in a sterile tube before treatment (before screwing the screws into the bone) and then sterilized. Before screwing in, the screws are picked up from the tray using a special driver. It is important that the screws can not fall off the driver due to their gravity or forces due to their own mass and movements of the insertion instrument by the dentist.

shows a Trayboden (TB) in which several mold cavities are present. It is a screwdriver compartment (SDF), a tweezer compartment (PF), an empty compartment (LF) for other utensils and a plurality of screw compartments (SF) which are shown in the section enlargement AA of the area A and partially filled with screws (S). screwing 1 (EDI-1) and 2 (EDI-2) are housed in the designated Formausnehmungen. The Tray Lid (TD) can be moved in the Tray Lid Guide (TDF) to protect the items stored in the tray from falling out.

shows another tray version with a tray bottom (TB), a screwdriver compartment (SDF), screw compartments (SF) and a tray lid guide (TDF).

shows a screw that is intended for orthodontic applications. It usually consists of a threaded area (GB) which is screwed into the jawbone, a screw shaft (S-Sch) which is usually unthreaded and acting as a mucous membrane protruding link between the threaded portion (GB) and the molded screw head (SK). The screw head usually has a more or less pronounced screw plate (ST), an undercut (HS-1) and a screw ring (SKr). The design of the screw heads is usually the attachment of elements for moving the teeth. The geometry of the screw heads may also differ from the shape shown here. Examples of this would be rake or spherical designs of the screw head (SK).

The screws described above are usually handled manually with a passive screwing tool (eg screwdriver ) or via a screwdriver (also called a blade ), which can be either from an active insertion tool (eg motor-driven contra-angle handpiece or other motor-driven insertion instrument) or a passive insertion tool (eg screwdriver ) introduced into the bone.

shows a screwdriver. Usually, a handle (GR) is rotatably mounted on the hand turn, via which the torque is applied for screwing. The torque is transmitted via a usually interchangeable Eindrehinstrumentenschaft (EIS) to the formed on the front portion of the blade insert (SE) which rotates to the einzudrehenden screw has a locking mechanism usually us on the screw head engages. If the insertion instrument shaft (EIS) with the integrally formed screw insert is detachable and consequently connected via a detachable connection to the rest of the screwdriver, the component consisting of the insertion instrument shaft (EIS) and the screw insert (SE) is also referred to as a blade.

shows a Eindrehinstrument which is commonly referred to as a blade and consists of a Eindrehinstrumentenschaft (EIS), a screw insert (SE) and a coupling or an elbow connector (WSA) and this to another Eindrehinstrument, in this case to an H & W elbow.

In the literature and practice, two different variants are described in the process of screwing.

Version 1:

Screwing the screws into a preformed into the bone mold cavity, preferably a bore. For this purpose, a screw is required, which has based on the thread in the bone either a self-cutting and or self-forming properties.

Variant 2:

Direct screwing of the screw into the bone without prior action on the bone. For this type of insertion of screws into the bone, it is useful in the design of the screw in addition to the properties described in variant 1 additionally integrate a self-drilling property.

Before screwing the screws into the bone, the screw must be mounted on the driving tool / driver. The Eindrehinstruments have at one end a receptacle for the screw, which have a rotary locking against the screw. These ratchets are executed on the instrument side as a die and or patrix. In a particularly advantageous embodiment, the plugged screw has an inhibiting and or blocking effect against the falling off of the screw from the screwing instrument. This hamper should be easily separable after screwing in the screw.

Practitioners who often screw screws into patients' bones usually have several insertion instruments in order to avoid having to re-sterilize the insertion tools between two patients. This means that while one or more screwdriving tools are contaminated by screwing in one or more screws on the same patient, at least one unused and ready-to-use sterilized material is still present. Consequently, it may be useful for reasons of cost and use to keep the tools separate from the screws and to sterilize them separately.

Some manufacturers have different types of screws. The screws often differ in the design of the screw head, the design of the thread, in the length of the screw, in the diameter of the screw. To better identify the practitioner, which screw it is usually colored by anodizing. However, the number of easily distinguishable colors is limited. The differences in the design of the screw head are usually easily recognizable. Further labeling by means of anodization can be further information about z. B. give the thread length. It becomes difficult if a differentiation in the diameter and or the thread design is to take place. On the are opposite the threaded area (GB) of two and different thread types shown. shows two different thread ranges (GB-1 and GB-2). Are screws with different screw head design, different thread design, different screw length and different screw diameter in one on the and If the tray is sorted, the dentist may not be able to determine exactly which screw type it is, even by detecting the screw head and coloring. When designing a tray, it would be advantageous to see how the threaded area, the length and the diameter are designed.

The on the and illustrated trays have in their application further disadvantages. Due to their size, the practitioner makes screw removal difficult. The size and the weight mean that the tray stands on a table, a shelf or something similar during the removal of the screws. The screw removal can only take place when the screwdriver axis is aligned approximately with the screw axis. Consequently, the dentist must bring the screwdriver axis in the orthogonal to the shelf when removing. This can be very cumbersome to the treatment. It would be better if the practitioner had a smaller and more handy tray which he could take in one hand and with the other hand the screwdriver (or with another Eindrehinstrument) could reach around the axis of the screw and the axis of Endrehwerkzeugs very easy in a run can bring to facilitate picking up the screw. From an ergonomic point of view, this brings with it many advantages and may possibly lead to a lack of posture and resulting postural damage.

However, if the tray is so small that it can easily grasp it with one hand, there is a risk that due to an awkward movement, the screws from the tray omitted. However, this only happens if the lid of the tray releases more than one screw at a time for removal. If only one screw is released the time in which a screw can be omitted is very small. When gripping the tray and the screw removal, the practitioner usually focuses on this process. If the tray has to be put away again, its concentration is usually already one step further. It would therefore be advantageous if the tray is provided with a lid which allows the removal of only one screw. When treating a patient, a practitioner often has to do several things at the same time and usually has too few hands for this. His assistant can relieve him in this regard often but not in all cases, since a third or fourth hand also requires space that is not always available in the patient. Consequently, it is advantageous if instruments are operated with one hand. In a particularly advantageous variant, the practitioner should be able to grip the tray with only one hand and with one finger of the same hand among all available in the tray Select the screws he wants to screw. It should continue to give a state of the tray in which no screw is removable, in which he accesses it conveniently and in which he can bring it back with one hand, this state is defined as a closed state.

The invention is based on the object a tray to be made, in which both all screw heads and all threaded portions of all screws are directly visible, it is tangible and operable with one hand, in the "closed state" no screw can be removed and open state only one to avoid accidentally falling out of other screws.

The object is achieved by the screws which are introduced into the tray at approximately the same distance from a center and the lid of the tray is rotatably mounted approximately in this center, the lid due to its design or due to at least one Mold recess with appropriate positioning allows the removal of a maximum of one screw. It is favorable if the distance difference of the screws to the center which advantageously also the pivot point of the lid is at most the distance itself, advantageously less than 10 mm and in the optimum not available. The same distance as possible is important so that the screws are positioned on a circular path running around the center. This simplifies the realization that a maximum of one screw can be removed by means of a mold recess in the lid, but all screws can be removed one after the other within a rotation of the lid by 360 °. This means that the web around the center on which the screws are positioned and the path which forms the mold recess for screw removal at least have a common radius.

To optimize the ergonomic properties of the lid has in the positions in which a screw is removable, a sort of grid to find the position of a haptic signal easier and to make it difficult to unintentionally change the position of the lid. Moreover, it is advantageous that even in the closed state, a screening exists in a particularly advantageous variant has a stronger locking and thus sends a better haptic signal for better detection to the operator.

The tray in which the screws are inserted is advantageously made of a material which is either at least partially transparent or transparent or in which corresponding mold recesses are introduced which allow a free view of at least one threaded portion of the screw. It is particularly advantageous if the free view of the threaded areas of the screw can be orthogonal to the screw axis ( ). The circular arrangement of the screws around a center avoids the danger that one screw obscures or limits the view of another screw and thus the likelihood of confusion when removing a screw is greatly minimized.

In order to increase the number of screws placed in the tray, it is possible to increase the number of lanes around the center on which the screws are placed. and each show a Trayboden (TB) with two lanes. One of the 9 screw compartments on the outer circular path 1 is marked with SF-KB-1 and another (SF-KB-2) on the inner circular path 2. Although there is the danger of shading with the result that the screw thread areas no longer are recognizable, but the advantage that the practitioner can occupy each individual lane with only one screw type and thus can make a further discernible distinction. To remove the screws on the different tracks, it is necessary that the Formausnehmung or the Formausnehmungen when turning the lid all tracks are occupied by screws crossed. To avoid that more than just a screw in a position of the lid can be removed, it must be given that a straight line, which moves away from the center of this, either a maximum of one screw cuts or a maximum of a mold recess of the lid which for removal is provided by screws. The more screws are present in a tray, the more important is a grid of the lid. This means that only the combinations of the tray bottom of with the tray lid off and the tray floor of with the tray lid of at every rotational position of the tray lid allows the removal of only one screw. The other two combines of Traydeckel and Trayboden (TB with TD and TB with TD ) allow the simultaneous removal of two screws.

shows a Traydeckel with two Formausnehmungen (FA-SE-1 and FA-SE-2) which can be connected via a straight line with the center (ZT).

shows a Traydeckel with two Formausnehmungen (FA-SE-1 and FA-SE-2) where these can not be connected via a straight line with the center (ZT). A straight line can only be the center (ZT) with one or the other Formausnehmung which is provided for screw removal connect.

On the is a variant in the exploded view to see. The design is also referred to below as Revolvertray. The illustrated screws can be inserted in the provided screw compartments (SF) of the Tray Floor (TB). The tray lid (TD) which can be stored in and around its center (ZT) and is preferably transparent or transparent prevents falling out of the screws in the assembled and closed state and is held in position by the retaining nut (HM) and the tray bottom (TB) and is stored on the retaining nut (HM). The balls (KG) and springs (FE) can be inserted from below into the tray floor. The balls (KG) and springs (FE) are held in position by the washer (US), the cylinder head screw (ZKS), the tray bottom and the tray cover in the assembled state. The cylinder head bolt (ZKS) and the retaining nut (HM) are braced against each other. The springs (FE) and the balls (KG) build with spherical Formausnehmungen in the bottom of the tray lid, which at the on are not recognizable view, a screening on. This means that it comes de certain rotational positions of the lid for snapping and thus to a spring-related, force-dependent positive connection between Trayboden, Traydeckel and the balls. The recess for removing screws (FA-SE) in the tray cover (TD) enables the removal of screws if the tray cover (TD) rotates accordingly. The user can gain an insight into the threaded areas of the screws via the form-cut recess (FA-ES).

shows an assembly view of the revolver tray of without the tray lid (TD). In this embodiment, the retaining nut forms the center around which the screws position and around which the tray cover, not shown here, can rotate.

shows the Revolvertray from the and in which due to the in Formed recesses shown (FA-ES) the different threads of a screw are visible and thus can be between the two screw differences.

Due to the fact that the lid is not removable without tools and there is no risk of misplacement of the lid. A thorough cleaning is nothing contrary to the use of tools.

The circular arrangement of the screws around a center gives the further advantage that the screws can be arranged very space-saving and clear.

LIST OF REFERENCE NUMBERS

• A

  Area with holes / inserts / compartments for screws

  AA

  Magnification of A

  S

  screw

  SF

  screw trade

  TDF

  Traydeckelführung

  EDI 1

  Driver-1 in tray for EDI-1

  EDI-2

  Driver-2 in compartment for EDI-2

  LF

  Empty compartment for more utensils

  TD

  tray lid

  TB

  Trayboden

  SDF

  screwdriver specialist

  PF

  tweezers specialist

  GB

  threaded portion

  S-Sch

  screw shaft

  SK

  screw head

  SKr

  screw circle

  ST

  helical Disk

  HS-1

  Undercut 1

  SE

  screw insertion

  ICE CREAM

  Eindrehinstrumentenschaft

  HDS

  Hand turning piece

  GR

  grip

  WSA

  Angle connection

  GB-1

  Threaded areas 1

  GB-2

  Threaded areas 2

  HM

  retaining nut

  TD

  tray lid

  TB

  Trayboden

  KG

  Bullet

  FE

  feather

  U-S

  washer

  ZKS

  Cylinderhead screw

  CHAMFER

  Mold recess in the tray lid (TD) for screw removal

  FA-ES

  Mold recess in the tray bottom for improved visibility

  ZT

  center

  FA-SE-1

  Mold recess for screw removal-1

  FA-SE-2

  Mold recess for screw removal-2

  SF-KB-1

  Screw compartment on circular path 1 around the center (ZT)

  SF-KB-1

  Screw compartment on circular path 2 around the center (ZT)

pictures

• , Tray with detail enlargement
• , tray
• , screwdriver
• , elbow
• , Screw a threaded area
• , Screw with two different thread areas
• , Exploded view of the revolver tray
• , Overview drawing of the revolver tray
• , Side view of a revolver tray with the view on two different screws
• , Floor with two tracks of screw compartments for inserting the screws, whereby the center and two screw compartments of a web can be connected by a straight line
• , Floor with two tracks for inserting the screws, the center can be connected with only one Formausnehmungen to remove the screws over a straight line
• , Lid with two tracks for removing the screws, whereby the center and the two Formausnehmungen can be connected to remove the screws via a straight line
• , Cover with two tracks for removing the screws, whereby the center and the two Formausnehmungen for removing the screws can not be connected by a straight line

Claims (8)

A container consisting of at least a bottom part and a lid part, wherein in the bottom part Formausnehmungen are present, which are arranged in a circle in at least one circulating path around a center of the bottom part, in which screws can be introduced, for screwing into the bone, preferably the human Bone are provided, wherein in the cover part at least one mold cavity around the center is present, which is characterized in that in the superimposition of the named centers of the bottom part and the cover part, the circular paths of the mold recesses in both parts at about the same distance from the respective Own center. A container according to claim 1 wherein the bottom part is made of a transparent or transparent material. A container according to any one of the preceding claims, wherein in the bottom part mold recesses are provided, which are positioned so that they allow a clear view of the threaded portions of the screws. A container according to any one of the preceding claims, wherein the lid member is rotatably mounted about its own center and about the center of the bottom part. A container according to one of the preceding claims, wherein the cover part in fixedly defined angular positions has a latching with respect to the bottom part. A container according to one of the preceding claims, wherein the mold recess of the lid part is positioned at each latching position on a mold recess of the bottom part. A container according to one of the preceding claims, wherein the lid part has at least one latching position which is characterized in that the mold recess of the lid part is not positioned over a mold recess of the bottom part. A container according to any one of the preceding claims, wherein the lid member is made of a transparent or transparent material.

Images