EP1498095B1 - Treatment table - Google Patents

Abstract

Patient treatment couch has a headrest for the patient head with an integral drive for adjustment of the headrest vertical position. The headrest and drive can thus be removed from the couch as a single integral unit. An independent claim is included for a method for positioning a patient on a patient support couch.

Description

The present invention relates to a treatment couch for storage of patients.

Such treatment couches basically have a deck plate for the patient and a base supporting the deck plate on a floor, such as in a treatment room. Of course, the deck plate can be upholstered, so it does not necessarily have to be a rigid plate in the narrower sense. Furthermore, the deck plate may of course be multi-part, composed of different plate-like elements.

Such treatment couches are in some cases repeatedly adjustable in order to bring the patient in a suitable position. The invention is based on a treatment couch adjustable in at least two mutually substantially vertical adjustment directions.

In particular, adjustment possibilities along a longitudinal direction of the deck plate, along a horizontal direction transverse thereto and finally along a vertical direction are possible. For the sake of simplicity, the directions will be referred to below as X, Y and Z, where Y stands for the longitudinal direction, X for the horizontal transverse direction substantially perpendicular thereto and Z for vertical.

US 5,013,018 shows a treatment couch which is adjustable in various ways and to which the preamble of claim 1 relates. In particular, there is shown a pivoting movement about a horizontal axis perpendicular to the longitudinal direction and a pivotal movement about a vertical axis. The document states that the pivot axes should be near the center of the patient.

WO 01 72226 A likewise shows a treatment couch which can be adjusted in various ways. FIG. 2 shows a height adjustment about a horizontal axis, which is designated by P. Incidentally, the deck plate of the treatment couch can also translate, in the longitudinal direction.

US 2001/041885 shows a pivoting adjustment movement about a vertical axis. Furthermore, the document mentions a translational shift in the three spatial axes (paragraph 24). Further, Figure 3 A clearly shows that the axis of rotation for the pivoting movement is closer to the head end of the treatment couch than at the foot. The present invention is based on the technical problem of improving a corresponding treatment couch in its adjustment.

The invention is directed to a treatment couch for supporting a patient with a reclining panel for the patient and a base for supporting the recliner panel on a floor, the recliner panel being adjustable relative to the base to adjust the patient's positional position, and the recliner panel for those adjustments about a first axis of rotation, which is parallel to a direction perpendicular to the longitudinal direction, is pivotable, wherein the pivoting movement corresponds to a vertical displacement of one end of the deck plate, and pivotable about a second axis of rotation, which is parallel to a direction perpendicular to the longitudinal direction is where the pivoting movement of a horizontal and perpendicular to the longitudinal direction adjustment of this end corresponds, wherein the second axis of rotation with respect to the longitudinal extent of the deck plate is off-center to the other end of the deck plate, within 30% of the longitudinal extent, characterized in that the first axis of rotation with respect to the longitudinal extent of the deck plate approximately at the other end, within 10% of the longitudinal extent.

The invention is characterized in that at least one of said adjustment options should be solved by a pivoting movement mechanism with a rotation axis. In this case, the axis of rotation should be perpendicular to the longitudinal direction, the so-called "Y-direction", so that in a pivoting movement about a parallel to a vertical "Z-axis" axis of rotation horizontal "X-adjustment" and at one to the horizontal "X-direction" parallel axis of rotation results in a "Z-adjustment".

It has been shown that the conventional linear guides at two, esp. When inventively preferred three adjustment axes lead to a considerable technical effort and thus relatively expensive constructions. I. d. R. are used for the X and the Z-adjustment directions each have multiple drives. In contrast, the X-adjustment and the Z-adjustment can be accomplished relatively easily by a pivoting movement about said axes. In particular, drives can be saved, ie in the case of a manual adjustment corresponding drives with manual operation or otherwise motor drives. It is even possible, though not absolutely necessary, to provide only a single drive for the pivotal movement about a rotation axis. In the case of the invention, by the way, with respect to all axes of rotation, preferably motor drives are preferably included, but treatment couches with hand-operated adjustment possibilities or those with partly motorized and partly manually operated adjustment options are also included.

According to the invention, both the X-adjustment and the Z-adjustment are achieved via a pivoting movement mechanism.

The positioning of the axis of rotation for the Z-adjustment (ie the X-parallel axis of rotation) according to the invention in the region of the foot end of the deck plate. The invention is further based on a positioning of the axis of rotation for the X-adjustment (ie the Z-parallel axis of rotation) from the center of the couch on the side of the foot end, with respect to the Y-longitudinal direction. Thus, in the adjustment already in the middle of the body and even more at the head end as a result of pivotal movement about the axis of rotation reaches considerable lifting heights. Concretely, this means that the X-parallel pivot axis is approximately within 10% of the longitudinal extent with respect to the longitudinal extent of the deck plate from the foot end, the reference amounting to 100% of the total length of the deck plate without the optional optional headrest.

In the same sense, the Z-parallel pivot axis according to the invention is within 30% of the longitudinal extent seen from the foot, particularly preferably within 25% and in the best case within 20%.

In a preferred embodiment, the motor adjustment drive for the Z adjustment can be a motor, for example an electric motor, with a coupling wheel provided on an output shaft and a coupling belt driven by the coupling wheel. The coupling wheel and coupling belt may be, for example, a gear / toothed belt or gear / chain combination. The coupling band carries a driver, which either entrains the adjustable part of the treatment couch or is coupled to the part of the treatment couch which is not moved during the Z adjustment. In the former case, the motor is stationary with respect to the part of the treatment couch which is fixed during the Z-adjustment, in the second-mentioned case it is stationary with respect to the part of the treatment couch covered by the Z-adjustment. In this way, the arcuate adjustment can be realized by a simple rotary drive. For the sake of illustration, reference is made to the exemplary embodiment.

A preferred embodiment of the X-adjustment can be a conventional linear drive, such as a screw or rack and pinion, be, at its two ends, d. H. at a respect to the linear motion stationary and an end moved by the linear movement, hinged. Due to the articulated mounting of the linear linear actuator can be used in the actually arcuate pivoting movement about the rotation axis according to the invention.

Preferably, the treatment table on a headrest for supporting the patient's head, which is adjustable relative to the deck plate. This adjustability can in addition to the already described adjustability of the deck plate in treatments be of interest to the head. However, in the context of this invention is particularly interested in a headrest, which is adjustable in a substantially vertical Z-direction relative to the deck plate, in which a drive for the Z-adjustment of the headrest is installed in the headrest and the headrest together with the drive as a module is detachable from the treatment couch.

The invention thus assumes that an adjustable headrest is present. The drive of this headrest, whether it is a manual drive, such as a hand crank or an adjustment, or a motor, esp. Electric motor, is to be part of the headrest. This means that the headrest is mounted as an independent unit to the treatment table and removable without the drive itself would have to be separated from the headrest. The drive should therefore at most be coupled via signal lines or supply lines to the other treatment couch, for example because it is supplied together with local motors or is controlled by a common control. The connection between the headrest and the treatment bed is therefore limited to static releasable fasteners and lines.

The prior art has instead installed the drive in the treatment couch, for example, as an electric motor which drives a push rod via a spindle gear, which transmits the adjustment movement to the headrest. This has the disadvantage that in the production no separately pre-assembled headrest module can be used, which only needs to be connected by some mounting screws or the like with the treatment table. Furthermore, one can achieve advantages with the solution according to the invention in the maintenance or retrofitting of a treatment table by the headrest can be removed as a complete functional unit and can exchange for another need for repair or updating or modification request against another headrest.

Preferably, the vertical Z-adjustability of the headrest is realized by a pivoting movement, to which only a single drive is required. Esp. may be substantially perpendicular to the vertical Z-direction and also substantially perpendicular to the longitudinal extent of the treatment couch extending Pivot axis may be provided on the treatment couch facing side or in articulation points on the treatment couch.

Also preferred is a rack and pinion drive, in particular in conjunction with the described pivoting movement. For the sake of illustration, reference is made to the exemplary embodiment. A rack and pinion drive is i. d. R. easier and less problematic than, for example, a driven spindle gear or a linear motor. Preferably, the rack drive has a guide for the rack itself, which in turn is rotatable to compensate for the tilt of the rack during the pivotal movement of the headrest. The rack is also preferably hollow and may then serve to guide conduits between the headrest and the treatment couch in a protected manner.

Basically, motor drives of the Z-adjustment of the headrest are preferred in this invention. This applies esp. For electric motor drives. In a further preferred embodiment, these are controlled in a manner adapted to adjusting movements of the treatment couch, so that esp. An automatic tilt compensation of the headrest can be done when the treatment couch or its deck plate is tilted. This tilting movement of the deck plate can u.a. occur because a vertical Z-adjustment of the deck plate by a pivoting movement thereof takes place and the associated pivot axis is remote from the headrest. The automatic tilt compensation then makes it possible to keep constant the angular orientation of the headrest, i. for example, a consistently horizontal position of the headrest. This is particularly advantageous in treatments of the patient's head.

In a further preferred embodiment, the headrest further comprises an X-adjustment relative to the deck plate, and preferably also by a pivoting movement about a now lying parallel to the Z-direction of rotation axis. This adjustment is preferably motorized. Again, it is preferred that the X-adjustment can be done in a (mechanically or motorized) adapted to an X-adjustment of the deck plate manner to obtain a corresponding angle compensation in the headrest in pan-X adjustments of the deck plate. For then the patient's head can be moved in the X-direction without causing an angle error in the area of the patient's head resting on the headrest. However, if this option is omitted, the angle errors that occur are not so great that this would lead to a problem in all applications.

For the technical implementation of the X-adjustment of the headrest by a pivoting motion apply mutatis mutandis to the versions of the Z-adjustment.

If a headrest according to the invention mounted in a modular manner on the treatment couch is adjusted, a risk of jamming can occur. This applies esp. For a pivoting of the distal end of the headrest relative to the treatment table, wherein the upper bed surface of the headrest is moved to the treatment couch. The invention provides in this case to leave sufficient distances, so that esp. The treatment personnel is not subject to any risk of jamming. On the other hand, since an at least substantially continuous lying surface is to be created for the patient, it is preferable to extend an already favorable cushion on the headrest beyond its fixed parts, so that such safety gaps are covered. As an additional measure can be provided to hold the pad on the headrest only via a hook and loop fastener and possibly further detachable by direct removal fasteners, such as centering pins o. Ä. Should a cushioning effect from the pad, this can easily be released from the hook and loop fastener and the possible other fastening means, whereby greater clamping forces can be avoided.

It has already been stated that in the invention the Z-adjustment and the X-adjustment take place via the described pivoting movements. On the other hand, it is preferred according to the invention, the Y-adjustment, so the adjustment in the longitudinal direction, continue to make in a conventional manner via a linear guide. Since the Y-adjustment is not carried out gravitationally parallel, it may be sufficient here to use a single linear drive, such as a spindle drive, and to store the deck plate, moreover, displaceably in the Y direction. Incidentally, in the case of the invention, it is preferable that the Y adjustment movement is stationary with respect to the stationary one Basis takes place and further preferred that the X-adjustment "takes along" the Z-adjustment mechanism, so to speak between the Y-adjustment and the Z-adjustment is interposed. As a result, the X-adjustment can remain free from the effects of gravity and the Z-adjustment can be limited to the movement of comparatively smaller components of the entire treatment couch.

The treatment couch may comprise a support leg, which is entrained in the X-adjustment and is mounted on a with respect to the X-adjustment rotary axis remote part of the treatment table, preferably in the vicinity of the shoulder or head region of the patient. As a result, an improved overall stability can be achieved when extending the X-movement as a result of the support foot.

A preferred field of application for the treatment couch according to the invention lies in components of medical devices for the treatment of the head and in particular of the eye. Furthermore, the invention preferably relates to devices for the treatment of the human body, but can also be used in treatment beds for animals. A particularly preferred area is the laser surgery on the human eye, in which the treated eye can be brought into the correct position for the laser surgery by the treatment couch according to the invention.

Finally, the invention also relates to a method for storing a patient using the described treatment couch. The foregoing and following description of the treatment couch in its device details is to be understood as a disclosure of said method.

Fig. 1

zeigt eine Seitenansicht einer erfindungsgemäßen Behandlungsliege.

Fig. 2

zeigt die Behandlungsliege aus Fig. 1 mit veränderten Verstellpositionen.

Fig. 3

zeigt eine Draufsicht auf die Behandlungsliege aus den Fig. 1 und 2.

Fig. 4

zeigt eine Draufsicht entsprechend Fig. 3 mit verschiedenen Verstellpositionen.

Fig. 5

zeigt eine Schnittdarstellung durch eine Kopfstütze der Behandlungsliege gemäß den Fig. 1 - 4.

Fig. 6

zeigt eine Fig. 5 entsprechende Darstellung eines anderen Ausführungsbeispiels für die Kopfstütze.

Fig. 7

zeigt die Kopfstütze aus Fig. 6 in Explosionsdarstellung.

Fig. 8

zeigt die Kopfstütze aus Fig. 5 in Explosionsdarstellung.

Fig. 9

zeigt die Kopfstütze aus den Fig. 6 und 7 in Seitenansicht mit zwei verschiedenen Verstellpositionen.

Fig. 10

zeigt eine perspektivische Ansicht der Kopfstütze aus den Fig. 6 - 8.

Fig. 11

zeigt eine schematisierte Draufsicht auf ein weiteres Ausführungsbeispiel für eine erfindungsgemäße Behandlungsliege mit einer X-verstellbaren Kopfstütze.

Fig. 12

zeigt eine schematisierte perspektivische Ansicht noch eines weiteren Ausführungsbeispiels für eine erfindungsgemäße Behandlungsliege mit einem Stützfuß.

In the following an embodiment of the invention will be described in further detail, wherein the disclosed individual features may be essential to the invention in other combinations.

Fig. 1

shows a side view of a treatment couch according to the invention.

Fig. 2

shows the treatment table of FIG. 1 with changed adjustment positions.

Fig. 3

shows a plan view of the treatment couch of FIGS. 1 and 2.

Fig. 4

shows a plan view corresponding to FIG. 3 with different adjustment positions.

Fig. 5

shows a sectional view through a headrest of the treatment table according to FIGS. 1-4.

Fig. 6

shows a Fig. 5 corresponding representation of another embodiment of the headrest.

Fig. 7

shows the headrest of Fig. 6 in an exploded view.

Fig. 8

shows the headrest of FIG. 5 in an exploded view.

Fig. 9

shows the headrest of FIGS. 6 and 7 in side view with two different adjustment positions.

Fig. 10

shows a perspective view of the headrest of Figs. 6-8.

Fig. 11

shows a schematic plan view of another embodiment of a treatment couch according to the invention with an X-adjustable headrest.

Fig. 12

shows a schematic perspective view of yet another embodiment of a treatment couch according to the invention with a support foot.

Fig. 1 shows a side view of a treatment table according to the invention, wherein some interesting technical details are shown, which would not be visible from the outside when the housing is closed. In Fig. 1, 1 denotes a deck plate on which a mattress 2 is located and at its right end to a vertical end of the deck plate 1, a headrest 3 is mounted.

The deck plate 1 is mounted in a manner to be explained in more detail on a base 4, which rests on Verstellfüße 5 on a floor 6.

In the base 4 a linear drive with an electric motor 7 and a driven by this spindle lifting rod 8 is fixedly mounted. The spindle lifting rod 8 is mounted on a bracket 9, via which the electric motor 7 and the spindle lifting rod 8 can move a first intermediate plate 10. The first intermediate plate 10 is slidably mounted on a rail 11 running linear guides 12 in Fig. 1 horizontal direction and thus in the longitudinal direction of the deck plate 1. This direction thus corresponds to the Y direction.

The first intermediate plate 10 carries at about 17% -18% of the longitudinal extent on the side of the foot (drawing not to scale) a bearing 13 with in Fig. 1 vertical axis of rotation. About this bearing 13, a second intermediate plate 14 is rotatably supported relative to the first intermediate plate 10 about the vertical axis through the bearing 13. In this case, the second intermediate plate 14 is supported on a running surface 16 of the first intermediate plate 10 via a roller designated 15 and on the other hand connected to a driver 17 which is driven by a toothed belt described in more detail below. The toothed belt runs in a designated 18 in Fig. 1 housing. Thus, the second intermediate plate 14 can be pivoted about the vertical axis passing through the bearing 13, which in the Y-direction spaced from the bearing 13 areas, ie in particular in the headrest 3, an adjustment in a direction perpendicular to the plane, namely the X-direction, corresponds.

At the second intermediate plate 14, a pivot bearing 19 is provided in the foot area (approximately at 7% -8% of the longitudinal extent, drawing not to scale) on which the deck plate 1 is articulated. In the head area, the deck plate 1 is pivotally connected to a Spindelhubstange 20 which is linearly driven by an electric motor 21, which in turn is hinged to a mounting platform of the second intermediate plate 14.

FIG. 2 shows the side view according to FIG. 1 with some deviations with respect to the adjustment positions. The comparison of FIGS. 1 and 2 shows, on the one hand, that, by extending the spindle lifting rod 20 out of the electric motor 21, the deck plate 1 can be pivoted about the rotation axis 19 and thus raised in the head region in the vertical direction, ie in the Z direction.

Further, the comparison of Figs. 1 and 2 shows that by moving the spindle lifting rod 8, here retraction into the electric motor 7, the first intermediate plate 10 and thus also the second intermediate plate 14 and the deck plate 1 can be moved in the Y direction.

Fig. 3 shows a plan view of the treatment table of FIGS. 1 and 2, wherein in particular the mechanism for driving the driver 17 is shown in more detail. An electric motor 22 with lying in the Z direction of rotation axis drives a toothed belt 23, which is guided over four pulleys 24 and is secured to the driver 17. A rotation of the output shaft of the electric motor 22 thus moves the driver 17 in the X direction and thus moves the second intermediate plate 14 relative to the first intermediate plate 10 in the X direction. This movement is illustrated in FIG. 4, wherein an adjustment made in the X direction with the head end according to FIG. 4 at the bottom and in dashed lines an X adjustment effected in the opposite direction are shown in solid lines. For clarity, in Fig. 4, the reference numerals are omitted. The rotation occurs about the axis through the bearing 13. The roller 15, which lies approximately centrally with respect to the X direction under the second intermediate plate 14, remains within the adjustment range shown in Fig. 4 on the over the entire X-width of the first Intermediate plate 10 continuous track rail 16.

The figures also show that the headrest 3 is attached via two levers 25 hinged to the deck plate 1. Fig. 1 and Fig. 2 further show that in the Z direction under the levers 25, a further Spindelhubstange 26 is provided with an electric motor 27. The electric motor 27 is hinged to the headrest 3. Furthermore, the spindle lifting rod 26 is hinged to the deck plate 1. The comparison of Figs. 1 and 2 shows that by retraction and extension of the screw jack 26 in and out of the motor 27, a tilting movement of the headrest 3 about the hinge axis of the lever 25 on the deck plate 1, with in particular an automatic tilt compensation at Z-adjustment of the deck plate 1 can accomplish. This tilt compensation is clearly visible in FIG. In addition, the headrest 3 can of course be tilted in other ways, if desired. The automatic tilt compensation is done by appropriate tuning of the control of the motor 27 to the drive of the motor 21st

Fig. 5 shows the headrest of the treatment couch in detail, in a sectional view seen in the X direction.

The headrest 3 has a holding plate 28, the exact structure of which is even clearer from the following figures and which can be fastened by fastening screws 29 on the treatment couch itself. The holding plate 28 is already shown symbolically in FIGS. 1 to 4, but not numbered.

The fastening screws engage in a metal plate 30 with corresponding threads to relieve the otherwise made of plastic retaining plate 28. They also hold in the holding plate 28 a hinge box 31, in which the already mentioned with reference to FIGS. 1 - 4 and shown there rack 26 is articulated.

As the following figures illustrate in more detail, the actual head shell 32 of the headrest 3 is hinged to the support plate 28 via two joint boxes lying above or below the plane of the drawing with corresponding rocker arms. This head shell 32 consists of an anatomically shaped upper part 33 and an attached housing part 34, in which the already mentioned rack 26 protrudes. In the housing part 34 is arranged below the plane of the electric motor 27, which is already shown in Fig. 1, installed with a well recognizable in Fig. 5 output pinion. Further, a guide 35 is provided which holds and guides the rack 26, but in which it is displaceable. The guide 35 can be pivoted about the axis of the output pinion of the electric motor 27 and thus follow in the movement of the headrest 3 a pivotal movement of the rack 26 about the articulated attachment in the hinge box 31.

The headrest 33 consists essentially of a soft foam pad 36, which is attached via a hook and loop fastener 37 to an upper plate of the housing part 34. To facilitate insertion of this pad 36, not shown centering pins may additionally be provided here.

This plate is, as Fig. 5 shows in the horizontal position of the head rest 33 is slightly spaced from the holding plate 28, so in the direction of the holding plate 28 facing direction does not protrude far beyond the remaining housing part 34 addition. Therefore arises at this point a slot between the housing part 34 and the holding plate 28, which is surmounted by the pad 36. A risk of jamming is not given because this slot is sized so large that operators do not pinch their fingers easily can. Further, the pad 36, which can approach in a downward movement quite strongly to the support plate 28 as shown in Fig. 5, dodge upwards. This follows, on the one hand, from a certain deformability and, on the other hand, is an advantage of the Velcro fastener 37.

Fig. 6 shows an alternative embodiment to Fig. 5, which may be mounted in the same way on a treatment couch according to Figs. 1-4. In the following, only the differences with respect to FIG. 5 will be discussed. On the one hand, a centering pin 38 is shown in Fig. 6, which holds the pad 36 on the upper plate of the housing part 34 of the headrest 32. On the other hand, the electric motor 27 is here replaced by a hand crank drive 39 with a worm gear 40, 41. The gear 41 of the worm gear lies on a common axis with a pinion 27 corresponding to the output gear 27 of FIG. 5 for driving the rack 26th

The hand crank 39 has a fold-out pin for ease of cranking, indicated at 42. It can be seen that the manual drive is part of the headrest 3 in the same way, as applies to the electric motor 27 with the associated drive parts in Fig. 5. Incidentally, there are no fundamental differences from FIG. 5.

Fig. 7 illustrates the headrest 3 of FIG. 6 in an exploded view. It can be seen that the pad 36 has a somewhat semicircular shape and the housing part 34 of the headrest 32 is adapted to this semi-circular shape and holds the pad 36 from the outside. It also recognizes the over the housing part 34 protruding part of the pad 36 and an associated semicircular recess in the support plate 28 into which protrudes this supernatant. In addition to the joint box 31, FIG. 7 shows two further joint boxes, which are designated by 43 and are held by screws 44. These joint boxes 43 carry hinge pins, which are attached to the housing part 34 of the headrest 32 and on the other hand inserted into the recognizable receiving holes of the holding plate 28 and screwed with the screws 44. Incidentally, the fastening screws 29 and 44 also serve for fastening the retaining plate 28 to the rest of the treatment couch in a manner not shown in detail. she are bolted through a plate of the treatment couch through the support plate 28 with the hinge boxes 31 and 43.

Furthermore, FIG. 7 shows in perspective the guide 35 for the toothed rack 26 and the worm gear 40, 41 from FIG. 6.

Finally, it can be seen that the rack 26 is designed as a hollow tube. In a manner not shown 26 electrical lines can be laid in the rack, such as when instead of the manual drive 39 - 42, an electric motor drive 27 is used.

Fig. 8 shows an analogous representation to Fig. 7, but to the embodiment of Fig. 5. Further, in the illustration of Fig. 8 for illustration, the pad 36 is omitted, the Fig. 7 shows. Incidentally, reference is made to the explanations to Figures 5-7.

9 and 10 show a side view of the headrest 3 of FIG. 6 and 7 with a lower and an upper adjustment position and a perspective view of the headrest 3 for a better understanding of Fig. 7. Here, no reference numerals are shown to the pictorial Improve presentation.

In Fig. 9 can be seen esp. That an adjustment with the manual drive 39 - 42 causes the headrest 32 relative to the support plate 28 moves upward and thereby supported on the rack 26 and the hinge box 31. The same applies vice versa for an adjustment down. This can be done in the context of a motorized embodiment adapted to a Z-adjustment of the deck plate 2 of the treatment couch to ensure a constant, for example, horizontal holding the patient's head. This is esp. For the application of the treatment table according to the following explanations of importance.

It can be seen that the rack 26 or, more generally, the length adjustment element of the drive is arranged below the hinges forming the pivot axis. This is advantageous because then smaller length changes due to a Headrest adjustment on the level of the patient's head (in Y-direction) occur and the drive is thus better accessible from below for operation or for removal and installation.

Fig. 11 shows a schematic plan view of another embodiment to illustrate the optional feature of an X-adjustment of the headrest 3. On the deck plate 1 with the Z-parallel axis of rotation 13 for the X-adjustment of the aforementioned holding plate 28 in this case a motor driven rack 46 with motor 45 on one outer side (seen in the X direction) and mounted via a pivot 47 on the opposite outer side. Thus, the holding plate 28 can be adjusted relative to the deck plate 1 about the axis of rotation 47 so that angular errors due to X-adjustments of the deck plate 1 can be compensated for the axis of rotation 13. The Y errors occurring in this example - the axis of rotation 47 is not centered - can in turn be taken into account by an automatic consideration in the Y-adjustment of the deck plate 1, if desired. Incidentally, the X-adjustability of the headrest 3 can of course be beneficial for other reasons.

12 again shows another optional embodiment in which the X-adjustable part of the treatment couch is intercepted on the floor via an adjustable support leg 48. This support leg 48 is shown here only symbolically and can be driven in practice to stand out during adjustment movements from the ground and set up after adjustment for stabilization. Alternatively, the lower end of the support leg 48 may also be provided with a roll rolling on the ground or a sliding surface. The support leg 48 is attached to an end plate, which in turn is connected to the aforementioned intermediate plate 14, which in turn can be pivoted about the axis 13 relative to the base 4.

The illustrated treatment couch is an integral part of a laser surgical unit, not shown in further detail and known per se, for the treatment of ametropia in the human eye. Above the headrest 3, the head of this device is mounted and directs a Z-directional laser beam into the eye, which brought to the treatment couch in the appropriate position must become. X-adjustment allows switching between the two eyes of the patient. The optical adjustment options of the laser device itself must therefore cover only the fine movements of the laser beam in the actual treatment. The positioning of the patient takes place independently of this via the treatment couch. In particular, the X-adjustment can also be used to facilitate the patient's entry.

Claims (14)

1. A treatment berth for supporting a patient comprising
   a berth board (1) for said patient
   and a basis (4) for supporting said berth board (1) on a floor (6),
   said berth board (1) being adjustable relative to said basis (4) in order to position said patient,
   and said berth board (1) being tiltable around a first axis of rotation (19) during these adjustments which axis of rotation is arranged parallel to a direction (X) perpendicular to the longitudinal direction (Y), wherein the tilting movement corresponds to a vertical adjustment (Z) of one end of said berth board, and being tiltable around a second axis of rotation (13) which is parallel to a direction (Z) perpendicular to the longitudinal direction (Y), wherein the tilting movement corresponds to a horizontal and, in relation to the longitudinal direction (Y), perpendicular adjustment (X) of said end,
   wherein said second axis of rotation (13) is arranged out of the midst to the side of the other end of said berth board in relation to the longitudinal extension (Y) of said berth board (1), namely within 30% of said longitudinal extension (Y),
   characterised in that said first axis of rotation (19) is arranged approximately adjacent the other end in relation to the longitudinal extension (Y) of said berth board (1), namely within 10% of the longitudinal extension (Y).
2. The treatment berth according to claim 1 in which said berth board (1) is further adjustable relative to said basis (4) along a direction (Y) parallel to its longitudinal direction.
3. The treatment berth according to one of the preceding claims in which at least one adjustment movement is driven motorically (7, 8, 20, 21, 22).
4. The treatment berth according to claim 3 in which the motor drive for the adjustment movement around the first axis of rotation (19) comprises a linear drive (20, 21) which is mounted on both ends via articulations.
5. The treatment berth according to claim 4 in which the motor drive for the adjustment movement around the second axis of rotation (13) comprises a motorically driven coupling wheel, a coupling belt (23) driven by said coupling wheel, and a driver (17) mounted on said coupling belt.
6. The treatment berth according to one of the preceding claims, comprising a head support (3) on said berth board (1), said head support being adjustable in at least a horizontal direction (X), perpendicular to said longitudinal direction (Y), relative to said berth board (1), wherein an automatic Z inclination compensation device is provided for accomplishing an automatic inclination compensation of said head support (3) by said adjustability of said head support (3) during an adjustment of said berth board (1).
7. The treatment berth according to one of the preceding claims, comprising a head support (3) on said berth board (1), said head support being adjustable in at least a vertical direction (Z), perpendicular to said longitudinal direction (Y), relative to said berth board (1), wherein an automatic X inclination compensation device is provided for accomplishing an automatic inclination compensation of said head support (3) by said adjustability of said head support (3) during an adjustment of said berth board (1).
8. The treatment berth according to claim 6 or 7, wherein a drive (25, 26, 27, 31, 35, 39 - 43, 45, 46) for said adjustment of said head support (3) is mounted in said head support (3), so that said head support (3) can be dismounted as a module from said treatment berth together with said drive (25, 26, 27, 31, 35, 39 - 43, 45, 46).
9. The treatment berth according to one of the preceding claims in which the adjustment movement in said longitudinal direction (Y) is accomplished by an exclusively translatoric linear guide (7-12).
10. The treatment berth according to one of the preceding claims in which a support foot take along with an adjustment movement around the second axis of rotation (13) is provided for supporting said berth board on said floor in case of an extended adjustment, and wherein said adjustment movement around said first axis of rotation (19) does not take along said support foot.
11. A medical device for a treatment in the head region comprising a treatment berth according to one of the preceding claims.
12. The device according to claim 11 for treating the eyes.
13. The device according to claims 11 or 12 comprising a laser surgical device.
14. A method for supporting a patient by a treatment berth of one of the preceding claims in which the body part of the patient to be treated is positioned in an adequate treatment position by tilting a berth board (1) supporting the patient around an axis of rotation (13, 19) perpendicular to said longitudinal direction (Y) of said berth board (1).

Images