WO2010146109A1

WO2010146109A1 - Radiation protection arrangement

Info

Publication number: WO2010146109A1
Application number: PCT/EP2010/058532
Authority: WO
Inventors: Richard Jeschke
Original assignee: Mavig Gmbh
Priority date: 2009-06-18
Filing date: 2010-06-17
Publication date: 2010-12-23
Also published as: DE102009025380A1

Abstract

The invention relates to a radiation protection arrangement, in particular for attachment to a support rail that is attached to the side of a treatment table. The radiation protection arrangement comprises at least one slat made of a radiation protection material as well as an associated fastening device. The slat is fastened to the fastening device so as to be able to swivel. The fastening device comprises a holder which can be placed on the support rail, and the holder can be fixed to the support rail by means of a locking device.

Description

Radiation protection order

The invention relates to a radiation protection arrangement, in particular for attachment to a carrier rail, which is attached to the side of a treatment table, as a lower body protection. This radiation protection arrangement is particularly suitable for use at an angiographic workstation and serves to protect persons such as the doctor or assistant against radiation, in particular X-ray radiation.

WO 2004/107979 relates to a radiation protection arrangement which can be fastened laterally on a medical examination or treatment table as lower-body protection.

In an export form, this radiation protection arrangement has a plurality of lamellae arranged side by side, which are fastened at one end to a common carrier element. In addition, an upper part is provided, which on the support rail to the

Treatment table is attachable. In this known radiation protection arrangement, the lamellae can consist of a lead rubber mat which, for example, has lead films embedded in PVC. The lead rubber mats are used in wraps, which consist of an easy-to-clean and sterilized fabric. The

Slats are variable in length, in which a lower end is turned up and this end is fixed in this folded position, for example by means of snaps, Velcro or by the use of straps.

DE 1 516 420 describes a radiation protection device with several individual lead rubber flaps, which are pivotally mounted. Each lead rubber flaps is pivotally mounted about an axis perpendicular to it, located above its center of gravity. In one embodiment, a comb-like support is provided, in which pins are present on the extensions, on which the individual lead rubber flaps are pivotally mounted.

DE 1 466 848 describes a radiation protection device in which lead rubber flaps are attached via rotary axes to the side edge of a fluorescent screen carrier. In DE 27 49 826 Al an X-ray shielding device is described in which lead rubber flaps are provided which are mounted with clamps pivotable about axes. In one embodiment, a running rail has a T-shaped inner profile into which holders can be inserted.

DE 30 12 463 C2 shows a radiation protection device in which lead rubber flaps are suspended pivotally on a support. In one embodiment, a support element on comb-like extensions on which the lead rubber flaps are articulated.

DE 297 04 613 Ul describes a radiation protection device in which individual lead rubber flaps can be arranged pivotably on a rail. In one embodiment, a carrier is provided for each lead rubber cloth, which is mounted adjustably in a guide rail. The lead rubber flaps are pivotally mounted on a carrier about a transverse axis. Furthermore, braking means are provided with which it is prevented that the carriers are moved unintentionally within the rail. Alternatively, a catch or a lock can be used for this purpose. In a further embodiment, each lead rubber cloth on an eyelet with a through hole on which the lead rubber flaps is held by a pivot axis.

The invention has for its object to provide a radiation protection device that is easy to install on a treatment table and is adaptable to different needs.

This object is achieved with a radiation protection arrangement according to the patent claims.

The radiation protection arrangement according to the invention is particularly suitable for attachment to a carrier rail, which is attached to the side of a treatment table. In particular, the invention is suitable for attachment to treatment tables having a plurality of plates that can be used in different positions. Treatment tables are known with several plates such as multipart back plates, seat plate, Leg plate and top plate, each of which can be set differently inclined. The radiation protection arrangement according to the invention can be adapted to different positions of the individual plates of a treatment table.

The invention is based on the basic idea of fastening individual lamellae, which have a radiation protection material, to the support rail with an associated fastening device in the desired position. The blade is pivotally mounted on the fastening device about a perpendicular to her, located above its center of gravity axis. For this purpose, the fastening device on a holder which can be placed on the support rail and also has the fastening device on a locking device with which the holder is fixed to the support rail. The invention has the advantage that no custom-made for different holding systems are required, but the existing carrier rail is used on the side of a treatment table. Furthermore, the invention has the advantage that individual slats can be added independently of other slats or removed if necessary. In addition, the invention provides the ability to attach different lengths of lamellae to the support rail as needed. Thus, for example, on a head plate of a treatment table, which is inclined relative to the fuselage panel with respect to the floor upwards, longer lamellae are used, which preferably extend to the floor. On the other hand, in a leg plate, when it is inclined downward as viewed from the back plate, shorter lamellae may be fastened. Alternatively, slats can be used whose length is changeable. Preferably, the length-variable blades shown in WO 2004/107979 A1 cited above can be used.

The invention is explained below with reference to examples and the drawings. Show it:

1 is a perspective view of a treatment table with a preferred embodiment of a radiation protection arrangement according to the present invention, 2 shows a perspective view of a part of a lamella, which is arranged on a carrier rail in a first position,

3 is a perspective view of a part of a blade, which is arranged on a support rail in a second position,

4 shows a partial cross section of a fastening device according to an embodiment of the invention, in which the lamella is arranged in a first position,

5 shows a partial cross section of a fastening device according to an embodiment of the invention, in which the lamella is arranged in a second position and

6 is an exploded view of the fastening device of Figures 4 and 5.

Fig. 1 shows an embodiment of a radiation protection device according to the present invention, which is attached to a treatment table. In detail, a treatment table 1 with a top plate 11, a back plate 13, a seat plate 15 and a leg plate 17 are shown. In such a treatment table, the individual plates are adjustable in their position. On the various plates carrier rails 2 are mounted on each side. On these support rails 2 accessories can be attached, which is needed for a treatment of a patient. In the example shown in FIG. 1, four lamellae 3 are attached to the carrier rail 2 in the region of the back plate 13 and the seat plate 15 by means of fastening devices 4. In the example shown, the slats 3 are the same length, so that depending on the mounting location and the position shown here of the various plates of the treatment table, the lower end of the slats ends at different distances from the floor. To compensate for the different heights, slats of different lengths (not shown) may be used so that the respective lower ends of the slats preferably terminate at a short distance from the floor. As shown in Fig. 1, the adjacent louvers are alternately arranged in a first position and a second position on the fastening device, whereby adjacent lamellae are arranged alternately in a rear or a front position. In detail, the first blade, which is shown on the left in FIG. 1, is arranged in a first position on the fastening device, the second blade is arranged on the fastening device in a second position, the third blade is again in the first position and the fourth blade is again arranged in the second position. In this way, the slats are arranged alternately in a rear position and a front position with respect to the person standing in front of it. The distances between the mounting locations of the respective fastening devices are chosen so that the edges overlap each other along the longitudinal sides of the slats. In this case, the distance is further preferably selected so that the edges of the adjacent lamellae overlap each other and that in each position of the various plates of the treatment table, ie in a horizontal position of all plates of the treatment table. Due to the pivotal mounting of the lamellae on the fastening devices, the lamellae always remain vertically aligned due to their gravitational force and, as can be seen, the degree of overlapping changes when the plates of the treatment table are brought from an inclined position to the horizontal position. Alternatively, first the definition of the position of the treatment table and then the attachment of the slats with the required length. The distance between the first position and the second position, ie in the direction of the pivot axis of the fastening device preferably corresponds to the thickness of the slats. This has the advantage that the overlapping edges of the adjacent lamellae touch in their surface.

As will be explained in more detail below, the fastening device according to the invention has a holder which can be placed on the carrier rails. This has the advantage that each slat can be added individually or independently of the adjacent slats or removed if necessary. In connection with the above-described alternate mounting of the lamellae in a front or a rear position, this has the further advantage that, in particular, the lamella arranged in the rear position can be exchanged, in which the holder and the holder suspended lamella can be pulled up completely without the respective adjacent lamellae, which are arranged in the front position, must be moved. Conversely, in this way, a slat can be inserted into the gap between the support rail and the two adjacent located in the front position slats from top to bottom.

Fig. 2 shows a perspective view of a part of a blade, which is arranged on a carrier rail in a first position. This is shown in detail in FIG. 4 described below. In this case, the lamella 3 is fastened by means of the fastening device 4 on the support rail 2 so that between the support rail and the lamella, a lesser distance than in the second position.

In the second position shown in Fig. 3, the distance between the support rail 2 and the blade 3 is greater than in the first position. As will be described in more detail with reference to FIG. 5, a spacer is inserted between the sipe and the holder of the fastening device.

In this embodiment, the carrier rail 2 has a rectangular cross-section. The two opposite long sides 21 are aligned substantially vertically, i. parallel to the side surface of a treatment table as well as from Fig. 1 can be seen. The lamella 3 extends substantially parallel to the long side 21 of the support rail 2. The lamella 3 has a hole 31 reinforced with an eyelet, which is arranged in the region of the upper end of the lamella and approximately in the middle between the two longitudinal sides of the lamella is. The hole is located above the center of gravity of the blade. This has the advantage that the lamella aligns itself vertically by gravity. The eyelet is preferably made of metal and may preferably be formed as a sailing ring.

In the example shown in Fig. 2, the short side at the upper end of the blade has a bevel on both long sides. Alternatively, only one of the two sides can be chamfered. Other forms of the upper end, such as a rounding of the corners or a semicircular configuration of the upper end of the blade, are also preferred. This chamfer or rounding has the advantage that the upper corners of the slat project at a tilt of the support rail to a lesser extent on the support rail. As a result, the carrier rail on the side of the treatment table for the attending physician is more accessible. Within the slat, a reinforcement may be provided which stabilizes the upper end of the slat. The material for the lamella is any radiation protection material, such as known lead rubber lamellae, but in particular the lamellae described in WO 2004/107979.

As can be seen in particular from FIG. 3, the fastening device 4 has a U-shaped holder 41, which is placed on the carrier rail 2 from above, wherein the two legs of the U-shaped holder describe an interior suitable for receiving the carrier rail , The fastening device 4 also has a screw 42 which extends from the side through the eyelet 31 to the U-shaped holder 41. The further details of the fastening device 4 will be apparent from the description of Figures 3, 4 and 5.

Figure 4 shows a partial cross section of a fastening device according to an embodiment of the invention. Fig. 4 shows in detail schematically the cross section of the support rail 2 and a part of the upper portion of the blade 3. The fastening device 4 consists of a U-shaped holder 41 which is placed on the support rail 2. The U-shaped holder 41 has a first leg 411 and a second leg 415. In the example shown, a threaded hole 412 is provided in the first leg 411 of the U-shaped holder. This threaded hole 412 is located approximately in the middle of the side surface of the leg. In the example shown, the second leg 415 also has a bore 416, which is preferably threaded. Both legs 411 and 415 have in this preferred embodiment on its inner side at the lower end in each case a chamfer. This bevel has the advantage that the U-shaped holder is easier to place on a support rail. Alternatively, only one leg may have such a bevel or no bevel at all. The U-shaped holder 41 has in the example shown The inner surface of the second leg 415 has a coating in the form of a Teflon tape 418. This coating has the advantage that by means of a locking screw which is screwed into the opposite threaded hole, the second leg is pressed with the Teflon tape against the long side 21 of the support rail 2 and thus a stable fixation is achieved.

The fastening device further comprises a screw 42 which serves as a pivot axis. On this screw 42, a rotatable sleeve 43 is arranged, which has a cylindrical portion 431 and at one end a circumferential collar 432 in the example shown. The cylindrical portion 431 of the sleeve 43 projects into the hole or into the eyelet 31 of the lamella 3. Here, the outer diameter of this cylindrical portion 431 is approximately equal to or slightly smaller than the inner diameter of the hole or the eyelet 31st

In the first position of the blade shown in Fig. 4, this is adjacent to the U-shaped holder 41 is arranged. Between the collar 432 of the sleeve 43 and the blade 3, a spacer in the form of a washer 44 is arranged.

Fig. 5 shows the blade in the second position, in which the washer 44 is disposed between the blade 3 and the first leg 411 of the U-shaped holder on the sleeve.

As can be seen in Figures 4 and 5, the width of the spacer, i. This has the advantage already described above that in an arrangement of the slats, as shown in Fig. 1, the surfaces of the overlapping edge portions of adjacent slats touch each other. In this way, even in the overlapping areas for safe radiation protection is provided.

With simultaneous reference to Figures 4, 5 and 6, the screw 42 is explained in more detail. The screw 42 consists essentially of a first threaded portion 421 and a second cylindrical portion 422, a circumferential collar 423 and a second threaded portion 424. The first threaded portion 421 and the cylindrical portion 422 have substantially the same diameter. This diameter corresponds to the inner diameter of the cylindrical portion 431 of the sleeve 43. Furthermore, the thread corresponds to the threaded hole 412 in the first leg 411 of the U-shaped holder. The second threaded portion 424 has a larger diameter than the first threaded portion 421, but a smaller diameter than the collar 423. On the second threaded portion, a handle 45 is screwed, wherein the handle has a hole with a thread 451, which is the thread of the second threaded portion 424 corresponds. The second threaded portion and the handle are preferably firmly glued together.

The material used for the fastening device is preferably metal and / or plastic. In the example shown, the U-shaped holder, the screw and the sleeve are made of metal. The washer is made of plastic, as is the handle.

In the example shown, the screw 42 forms both the pivot axis and the function of the locking screw. Alternatively, separate elements may be provided, e.g. a locking screw which is screwed through the second bore 416 in the second leg 415 of the U-shaped holder. In this case, serving as the pivot axis screw 42 can be screwed into the threaded hole 412 of the first leg 411 without the function of a locking screw.

In the examples shown in the figures, the hole or eyelet 31 is arranged at the upper end of the lamella 3. According to a further embodiment of the invention, the lamella can be formed such that it has a radiation protection upper part and a radiation protection lower part. In this case, the radiation protection shell is extended in relation to the mounting location on the fastening device 4 upwards. The lamella is modified such that the hole or eyelet 31, not as shown in the figures, is arranged at the upper end, but at a distance from the upper end, so that the radiation protection upper part with respect to the mounting location on the support rail 2 upwards protrudes. Alternatively, the radiation protection shell may be a separate part attached to the Slat can be fastened in the region of the upper end. According to a further aspect of the invention, the radiation protection upper part can be fastened separately to the carrier rail with an associated fastening device.

The invention has been described by way of examples. It should be emphasized that individual features, examples and embodiments may be combined with each other as desired and thereby further preferred features, examples and embodiments may be formed which fall within the scope defined by the following claims.

Claims

claims

Radiation protection assembly, in particular for attachment to a support rail, which is attached to the side of a treatment table, with at least one blade, which has a radiation protection material, and an associated fastening device to which the blade is pivotally mounted, wherein the fastening device is a holder on the support rail is placed and has a locking device with which the holder is fixable to the support rail.

2. Radiation protection arrangement according to claim 1, wherein the holder is U-shaped and has two legs which describe an interior, which is suitable for receiving at least a portion of the support rail, wherein preferably the support rail has a rectangular cross-section with two long sides and the legs of the U-shaped holder facing the long sides.

3. Radiation protection arrangement according to claim 2, wherein the U-shaped holder has a threaded hole on at least one of the two legs and the locking device has a locking screw which projects through the threaded hole in the interior, whereby the holder after placement on the support rail by means of the locking screw can be fixed to the support rail.

4. Radiation protection arrangement according to one of the preceding claims with a pivot axis which is arranged on the holder and extending from the holder to the outside, wherein the blade is pivotally suspended from the pivot axis.

5. Radiation protection arrangement according to claim 4, wherein the lamella in an upper region, preferably at an upper end, at least one hole, on which the lamella is pivotally mounted on the pivot axis, wherein the hole preferably with an eyelet or a sail ring, preferably made Metal, reinforced.

6. Radiation protection arrangement according to claim 5, wherein the pivot axis preferably has a screw with a rotatable sleeve disposed thereon and wherein the screw is screwed into a threaded bore on the holder.

7. Radiation protection arrangement according to claim 6, wherein the screw in the threaded hole on one of the two legs of the U-fδrmigen holder can be screwed and simultaneously fulfills the function of the pivot axis and the locking screw.

8. A radiation protection assembly according to claim 7 with a washer which is preferably rotatably mounted on the screw or the sleeve, wherein the washer is attachable in one of two positions, in a first position in which the washer between the blade and the U-shaped Holder is arranged and in a second position, in which the washer between the screw head and the blade is arranged.

9. Radiation protection arrangement according to one of the preceding claims, wherein on at least one inside of the U-shaped holder, preferably on the inside, which faces the threaded hole for the locking screw, a coating, or a tape, preferably a Teflon tape is applied.

10. Radiation protection arrangement according to one of the preceding claims, wherein the lamella has a substantially rectangular shape with two long sides and two short sides, wherein the short side at least partially bevelled at the upper end of the lamella at least one of the two long sides and / or rounded is.

11. Radiation protection arrangement according to one of the preceding claims, wherein two or more lamellae are pivotally mounted with a respective associated fastening device on the support rail such that the adjacent lamellae overlap each other along the long sides.

12. Radiation protection arrangement according to claim 11, wherein adjacent lamellae are arranged with the respectively associated fastening device such that adjacent lamellae are alternately arranged in a first position and a second position on the fastening device, whereby adjacent lamellae arranged alternately in a rear or a forward position are arranged.

13. Radiation protection arrangement according to one of the preceding claims, wherein the lamella is variable in length, preferably by turning over the lower end and attaching the folded end of the lamella.

14. Radiation protection arrangement according to one of the preceding claims, wherein the lamella is formed such that it has a radiation protection top and a radiation protection base, wherein the radiation protection shell is extended with respect to the mounting location on the fastening device at the top.

15. Radiation protection arrangement according to claim 14, wherein the radiation protection upper part is a separate part which can be fastened to the lamella in the region of the upper end.

16. Radiation protection arrangement according to claim 14, wherein the radiation protection upper part is fastened with an associated fastening device on the support rail.