WO2008034899A1

WO2008034899A1 - Mattress for supporting a patient on an operating table

Info

Publication number: WO2008034899A1
Application number: PCT/EP2007/060055
Authority: WO
Inventors: Ulrich Wyslucha; Siegfried RÖDER; Wolfram Heckmann; Hans-Christian Wenner
Original assignee: Maquet Gmbh & Co Kg
Priority date: 2006-09-22
Filing date: 2007-09-21
Publication date: 2008-03-27
Also published as: DE102006044871B3

Abstract

The invention relates to a mattress (10) for supporting a patient (56) on an operating table (52), the mattress having a vacuum chamber (11), which comprises a moldable particle filling (18) and can be hardened by evacuation. The vacuum chamber (11) extends only over part of the mattress (10). The remaining part of the mattress (10) provides a supporting area for the patient.

Description

Mattress for storing a patient on an operating table

The invention relates to a mattress for storing a patient on an operating table, having a vacuum chamber containing a moldable particle filling and curable by evacuation.

On the table surface of a surgical table is usually a cushion, for example, consists of a foam and on which the patient is stored. The pad has the function to store the patient comfortably and without damage. In particular, the pad must ensure that the patient does not suffer pressure ulcers in the form of pressure sores or pressure ulcers, even during prolonged operations as a result of prolonged lying.

For patient storage vacuum mattresses are also known, which were initially used primarily in emergency care, for example as mattresses for ambulances. For this purpose, for example, on DE Referred to 2805327 and DE 2827589. Meanwhile, vacuum mattresses also find application in surgery.

A vacuum mattress has an air-impermeable enclosure which contains a loose particle filling, for example in the form of beads made of polystyrene particle foam. In the unevacitated state, the vacuum mattress is soft and moldable. It can thus be molded to the body of the patient. After molding, the vacuum mattress is evacuated via a vented vent. Due to the vacuum created in the vacuum mattress, the beads are pressed firmly against each other. This will make the vacuum mattress hard. By embedding in the hard vacuum mattress, the patient is immobilized.

As a result of the anatomical Anformung to the body of the patient, the pressure exerted by the vacuum mattress surface pressure on the patient is very low. The risk of decubitus is thus minimized. In addition, the patient is stable stored by positive locking.

However, the use of vacuum mattresses of the type described above for patient support on operating tables also has disadvantages.

Thus, the anti-decubitus shaping of the patient requires skill and experience on the part of the storage personnel. For example, the vacuum mattress must first of all be smoothed out as homogeneously as possible so that the wrapping of the vacuum mattress under the patient does not form wrinkles which could lead to decubitus. Such folds are hardly recognizable by the storage personnel. The reburial of the patient from the operating table back to the transport or hospital bed is made difficult by such a vacuum mattress. Since the vacuum mattress is positively molded to the body of the patient, even after venting the vacuum mattress, it causes difficulty in pulling the patient out of his embedding into the vacuum mattress into the transportation bed or bedside.

This is even more so when motor Umbettvorrichtungen be used. These can hardly be operated in such a way that they optimally act on them, adapted to the individual embedding of the patient. In addition, it should be noted that the vacuum mattress due to their deformability has no fixed predetermined thickness. Accordingly, the measured from the floor of the operating room from the storage height on which the lying on the vacuum mattress patient is not well defined. This also makes the relocation by means of motorized Umbett devices that are often designed so that they can approach only a fixed storage height.

Problems also occur when a vacuum mattress is used in an operating table whose table surface is adjustable within wide limits. Nowadays operating tables are in use, the table surfaces can be tilted as a whole or in segments by up to 80 ° about a table longitudinal axis or a table transverse axis.

At such extreme inclination, strong downhill forces act on the patient. These downdraft forces pull the patient out of his impression in the vacuum mattress. Thus, in a first phase, the bones begin to swim in the skin and fat sheath of the relaxed patient. So there is a relative movement between the nodes and the skin and fat of the patient. In a second phase, the downhill forces overcome the positive locking and the patient slips out of the impression. In this phase, there is a relative movement between the skin of the patient and the vacuum mattress. In both phases, the anatomy of the patient and the impression, ie the uneven relief and relief of the evacuated hard vacuum mattress, no longer fit together.

The mattress relief, which provides for horizontal storage of the patient in an advantageous manner for a very low surface pressure, therefore causes a strong surface pressure at strongly inclined storage, which far exceeds the surface pressure caused by conventional upholstery. The use of known vacuum mattresses together with operating tables that can be adjusted in a wide range thus entails the risk that the patient suffers a decubitus ulcer.

From EP 0 439 808 B1, a device for transporting patients is known, which contains an inherently stiff or stiffenable support for supporting the patient on its surface. With the support a vacuum chamber is firmly connected, which contains a moldable particle filling and is curable by evacuation. The vacuum chamber is arranged along the longitudinal central axis of the support.

In CH 676 924 A5 a mattress for storing a patient on an operating table is known, which has a vacuum chamber containing a moldable particle filling and is curable by evacuation. The vacuum chamber extends over the entire mattress except for an area in the head part in which an opening is formed, on which the patient comes to rest with his mouth and nose. In DE 43 04 518 Al a device for patient transport is described, which has a vacuum chamber with a curable by evacuation particle filling. The vacuum chamber consists of a central, the bearing surface forming portion and two lateral portions which are hinged to the central portion.

The object of the invention is to provide a mattress according to the preamble of claim 1 for storing a patient on an operating table, which allows stable and decubitus avoiding storage even when the operating table is highly inclined.

The invention solves this problem by the characterizing part of claim 1.

The invention takes advantage of a vacuum mattress and avoids its disadvantages. In particular, it creates the prerequisite for combining the advantages of a positive storage with those of a permanently elastic padded storage. The part of the mattress over which the vacuum chamber extends can be used for targeted, positive-locking storage of certain body parts, for example of body parts in which the operation target area is located. For example, the vacuum chamber may be arranged on the mattress in such a way that it positively supports only the shoulder region of the patient during head surgery. The rest of the mattress forms a storage area on which the rest of the body rests. This remaining part of the mattress can be used for a different type of patient positioning, in particular for a permanently elastic, non-positive padded storage. If the operating table is strongly inclined, a strong surface pressure only occurs at those points where the body rests positively against the evacuated and thus hard vacuum chamber. The occurring surface pressure can be further minimized by the fact that the vacuum chamber is arranged in the mattress so that the body in an inclined position with its weight does not press directly, but for example only tangentially to the vacuum chamber. In the remaining part of the mattress, in which the vacuum chamber is not formed, occurs in consequence of the lack of positive engagement even with a highly inclined operating table, only a comparatively low surface pressure. If necessary, additional securing means, such. As padded straps or side supports, are provided on the operating table to prevent slipping of the patient from the operating table.

Compared to a conventional vacuum mattress, the mattress according to the invention also has the advantage that the patient can be easily transferred from the operating table in the transport or hospital bed. Thus, the body of the patient is not embedded in a form-fitting manner in its entirety, as is the case with a conventional vacuum mattress. The one - usually larger - part of the body, which is mounted on the bearing surface of the mattress without positive locking, can be relatively easily move over the mattress surface and thus surround it. This also facilitates the use of motorized Umbett devices. In particular, a fixedly defined height is predetermined by the bearing surface of the mattress, which can be approached automatically by means of motorized Umbettvorrichtungen.

A vacuum mattress containing a moldable particulate filling places special demands on the storage personnel in terms of handling concerns. For example, the vacuum mattress must be placed on the operating table without wrinkles, smoothed and finally molded onto the patient's body. Since, in the mattress according to the invention, the part which is particularly difficult to handle in this sense, namely the vacuum chamber, is kept comparatively small, the mattress makes the work easier for the storage personnel. Handling errors, such as the formation of wrinkles or so-called film hinges, are thus avoided.

Also, the mattress does not wear as fast as a conventional vacuum mattress because it contains only a relatively small amount of particulate filling which is particularly susceptible to wear by being rubbed by the applied load and negative pressure generated.

Since the vacuum chamber extends in an edge region of the mattress, the peripheral body parts can be formed with the vacuum chamber and positively stabilized, while the central part of the body rests on the bearing surface of the mattress.

In a particular embodiment, the vacuum chamber comprises two elongate chambers, which are formed along two mutually opposite mattress edges. The remainder of the mattress forms a central mattress section connecting the two chambers. The two elongate chambers can be formed, for example, on the two longitudinal sides of the mattress and thus stabilize the arms and / or the legs or the entire body side of the patient. If the table surface of the operating table is pivoted about an axis perpendicular to these two elongate chambers, the resulting downhill forces act in the direction of the longitudinal extent of the chamber, ie, substantially tangential. An increase in the Surface pressure, which brings with it the risk of decubitus, is largely avoided in this configuration.

In a particular embodiment, the two elongated chambers each have at their one end an inwardly curved chamber portion. These chamber sections are facing each other and suitable, for example, to store only the shoulder region of the patient without the head and neck region in a form-fitting manner.

The vacuum chamber may further comprise a further elongated chamber formed along a mattress edge perpendicular to the two said mattress edges. This further elongated chamber can be used, for example, for the form-fitting mounting of both the shoulder region of the head and neck region.

In this case, the chambers may be connected together to form a U-shaped vacuum chamber. Such a one-piece design of the vacuum chamber has manufacturing advantages.

Alternatively, the chambers may also be formed separately from each other. Under certain circumstances, this makes possible an even more precise molding onto the patient's body while at the same time minimizing the mattress part formed by the vacuum chamber.

In another embodiment, the vacuum chamber comprises two further chambers, which are formed along two mutually opposite mattress edges which are perpendicular to said mattress edges. In this case, the patient's body can be molded from all sides and be positively stabilized. The body hull lies on the storage surface of the mattress, which is enclosed by the four chambers.

If the chambers are connected to a circulating vacuum chamber, the latter is particularly easy to manufacture.

If the chambers are formed separately from one another in an alternative embodiment, this in turn favors a precise shaping of the patient's body while at the same time minimizing the mattress part formed by the vacuum chamber.

The chambers forming the vacuum chamber can each have their own valve for evacuation. In this embodiment, it is possible to selectively cure one or more of the chambers by evacuation, while the remaining chambers are not evacuated and thereby remain soft. The mattress thus formed can be flexibly adapted to different operating constellations.

In an alternative embodiment, the chambers forming the vacuum chamber have a common valve for evacuation, which simplifies the construction of the mattress and thus reduces the manufacturing costs.

In an advantageous development, the chambers, which are formed separately from one another, are connected to one another via air lines, which run through an edge region of the middle mattress section. Since the patient is usually stored so that its center of gravity rests centrally on the middle mattress section, this arrangement of the air ducts ensures that the center of gravity is not on the air lines and pushes them off. In a particular embodiment of the bearing surface of the mattress forming part of a film-like carrier material. The thus formed mattress is advantageously used together with an operating table, on the table surface, a bearing pad is arranged. The mattress is placed on the storage cushion. By the film-like, ie the thin design of the carrier material ensures that the height of the table surface does not change even after attaching the mattress. In addition, the foil-like carrier material can be arranged on the bearing pad in a particularly simple and wrinkle-free manner. The elastic support of the patient takes place in this case by the bearing pad, which is part of the operating table. The foil-like carrier material of the mattress serves merely to attach the mattress to the bearing pad.

In a preferred embodiment, the carrier material consists of polyvinyl chloride, which is particularly hard-wearing and easy to process. Alternatively, the carrier material consists of a textile material.

Preferably, the carrier material has a thickness in a range of about 0.2 to 2 mm. This ensures that the height at which the patient is on the operating table essentially does not change as a result of the attachment of the mattress to the bearing cushion of the operating table. As mentioned above, this is particularly advantageous with regard to the use of motorized Umbettvorrichtungen. In addition, the thin design of the substrate ensures accurate molding of the body.

In a further embodiment, the vacuum chamber has an airtight envelope, which consists of the same material as the carrier material. This not only simplifies the construction of the mattress, but also facilitates handling, eg. As the cleaning, since the same material-dependent detergent can be used for both the vacuum chamber and the rest of the mattress.

In an alternative embodiment, the part of the mattress forming the bearing surface comprises a pad. This embodiment represents a combination of a form-fitting bearing element in the form of the vacuum chamber and a permanently elastic bearing element in the form of the pad. The positive bearing element is characterized in particular in horizontal or slightly inclined storage of the patient in that it produces only a small surface pressure and the patient Stably supported by the positive locking. The permanently elastic bearing element is very comfortable for the patient and adapts continuously to the anatomy of the patient. This is especially true when the patient is stored at a high angle of inclination. The thus formed mattress thus combines in an integral version of the advantages of a positive storage and a permanently elastic storage.

The mattress described above can be placed directly on the table surface of the operating table, without the latter being provided with a cushion.

Preferably, the pad is formed of a foam. A foam has the desired permanent elasticity, thus ensuring that the pad gently adjusts to the patient's body at each tilt of the operating table. In a particular embodiment, the pad is an integral foam pad. Such integral foam pad is relatively dimensionally stable. It is particularly easy to produce desired shapes and structures.

In an alternative embodiment, the pad consists of a cover material with a foam core inserted therein. This two-part structure of the pad allows, for example, to replace the cover material after damage or contamination, without having to replace the foam core at the same time.

Advantageously, the foam core is multi-layered. This increases the durability and durability of the pad.

The airtight enclosure of the vacuum chamber is in an advantageous embodiment of the same material as the reference material. This facilitates the production of the mattress.

In a further embodiment, at least one preferably flat stabilizing element is arranged on the outside of the vacuum chamber, for example integrated in the envelope of the vacuum chamber. This stabilizing element facilitates the handling of the mattress considerably. It can be brought into abutment against the vacuum chamber from the outside, after the patient has been shaped. This can be avoided that the operator presses with their hands from the outside on the vacuum chamber and thus possibly runs the risk of affecting the already achieved impression. In addition, the vacuum chamber is stabilized by this element in particular when the body exerts a strong force on the vacuum chamber in an inclined position. Preferably, the chambers forming the vacuum chamber each have on their outside an elongated plastic stabilizing plate which extends along the respective chamber. Such a stabilization plate is inexpensive to manufacture. If supports are attached to the operating table, which support the chambers of the mattress in the evacuated state on the outside, the stabilizing plates ensure a more favorable pressure distribution on the supports. In addition, the stabilization plates in this case facilitate the handling of the mattress, since they can be easily applied to the supports of the operating table.

Preferably, the vacuum chamber is hinged in the non-evacuated state on the bearing surface. This means that the vacuum chamber is placed in the non-evacuated state on that part of the body of the patient, which is to be stored in a form-fitting manner. In addition, the vacuum chamber in the unevacitated state may hang from the operating table. It is then below the storage area on which the patient lies. This facilitates the transfer of the patient.

The chambers are, for example, about 100 mm to 300 mm wide. These dimensions usually allow a good molding of the chambers to the peripheral body parts of the patient.

In a particular embodiment, the elongated chambers are shorter than the edge regions of the mattress in which they are formed. This embodiment is particularly suitable if, for example, only the upper body of the patient should be stored dimensionally stable. The particle filling consists for example of polystyrene particle foam. Such a foam is relatively wear-resistant and easy and inexpensive to manufacture.

Preferably, the mattress is permeable to X-rays.

The invention further provides an operating table system with an operating table having an adjustable table surface. The operating table system further comprises a mattress of the type described above that can be placed on the table surface.

If a bearing pad is arranged on the table surface of the operating table, a mattress according to the invention is preferably placed on the bearing pad, the part of which forming the bearing surface consisting of a film-like carrier material. In this case, the mattress can be combined with a conventional operating table with integrated bearing pad.

Preferably, the operating table has at least one support, which supports the vacuum chamber of the mattress in the evacuated state on the outside. This support absorbs the force exerted by the patient's body, in particular when tilted on the vacuum chamber. The support also has the function to secure the patient against slipping. The invention will be described below in various embodiments with reference to the figures. Show:

1 to 4 are perspective views of a first embodiment of the mattress according to the invention in various modifications,

5 is a cross-sectional view of the mattress according to the first embodiment,

6 is a cross-sectional view of a mattress according to the invention according to a second embodiment,

Fig. 7 is a cross-sectional view of a mattress according to the invention according to a third embodiment, and

Figs. 8 to 12 are schematic diagrams showing operating table systems according to the invention

FIG. 1 shows a perspective view of a mattress 10 according to a first embodiment of the invention. In Figure 5, the mattress 10 is shown in a schematic cross-sectional view.

The mattress 10 has a two-part vacuum chamber 11, which consists of two elongate chambers 12 extending along two mutually opposite mattress edges. The two chambers 12 are interconnected by a central mattress section 14. The middle mattress section 14 forms a storage area on which the patient is placed. As is apparent from Figure 1, the vacuum chamber 11 formed from the two chambers 12 extends only over part of the mattress 10, while the remaining - in this embodiment larger - part is formed by the middle mattress section 14. The dimensions of the chambers 12 and the middle mattress section 14 are adapted to the body size of the patient. Thus, the width of the middle mattress section 14 corresponds approximately to the body width of the patient. The bearing surface formed by the central mattress section 14 is therefore suitable for receiving substantially the entire body of the patient. The two chambers 12 are dimensioned so that they can be molded laterally to the body of the patient, ie to the arms and / or legs.

The chambers 12 each have an airtight envelope 16 containing a loose and moldable particle filling 18 (see Figure 5). The particle filling 18 consists of a plurality of beads, which are made for example of polystyrene particle foam. Each of the chambers 12 also has a vent port with a valve 20. In this embodiment, the respective valve 20 is located at one of the two end faces of the respective chamber 12. At the valves 20, a suction device, not shown, connected to the in the chambers 12th is sucked in air.

In order to store the patient stable and free of damage, it is placed on the bearing surface formed by the central mattress section 14. Subsequently, the two elongated chambers 12 are pressed from the sides to the body of the patient. As a result, the particle filling 18 of the respective chamber 12 adapts to the body shape of the patient. If the two chambers 12 are precisely adapted to the patient, then the air is sucked out of the chambers 12 via the valves 20. As a result, the beads forming the particle filling 18 are pressed against each other, and the chambers 12 become hard.

After evacuation of the chambers 12, the patient's body, which lies substantially on the central mattress section 14, is stabilized from the sides by the chambers 12. By the chambers 12 fit accurately on the body of the patient, the pressure exerted on the patient surface pressure is low.

Each of the chambers 11 has on its outer side an elongated stabilizing plate 21, which consist for example of plastic. By the stabilizing plates 21, the chambers 12 are stabilized in the longitudinal direction. They are also suitable for resting against supports attached to the operating table.

In the figures 2 to 4 modifications of the first embodiment shown in Figure 1 are shown. In the following, only those features are described by which these modifications differ from the embodiment shown in FIG.

In the mattress 10 of Figure 2, the vacuum chamber 11 is U-shaped. It extends along the two lateral edges and along the upper edge. Since the vacuum chamber 11 is integrally formed, a single valve 24 is sufficient to evacuate the vacuum chamber 11. The valve 24 is arranged on the end face of one of the two leg sections of the U-shaped vacuum chamber 11. With the mattress 10 according to FIG. 2, the patient's body can be shaped not only from the sides but also, for example, from above through the vacuum chamber 11, so that in particular the shoulder regions can also be stabilized.

FIG. 3 shows a modification in which the vacuum chamber 11 is formed from two elongate chambers 26, each of which has an inwardly bent chamber section 28 at one end. The two chamber portions 28 face each other and may be used to mold the shoulder regions of the patient. The upper end of the middle mattress section 14 in FIG. 3 terminates with the inner edges of the two curved chamber sections 28, so that the area between the two chamber sections 28 is kept clear of the mattress section 14. In this modified embodiment, the positive storage extends only over the shoulder areas, but not also over the head and neck area of the patient.

Since in the mattress of Figure 3, the vacuum chamber 11 is formed in two parts, in turn, the two valves 20 for separate evacuation of the chambers 26 are provided.

FIG. 4 shows a modification in which the vacuum chamber 11 is formed circumferentially, ie extends over the entire circumference of the mattress 10. Since the vacuum chamber 11 is integrally formed, only a single valve 32 is provided for evacuating the vacuum chamber 30. This is located in this modified embodiment on a side surface of the vacuum chamber eleventh The modifications shown in FIGS. 2 and 4 can furthermore be modified so that the respective vacuum chamber 11 is designed in several parts. For example, in the case of the mattress 10 shown in FIG. 2, the U-shaped vacuum chamber 11 can be replaced by a three-part vacuum chamber in which the two leg sections and the section connecting the leg sections are each formed by a separate chamber. Accordingly, the vacuum chamber 11 of the mattress 10 shown in Figure 4 can be replaced by a four-part vacuum chamber in which each of the four sides is formed by a separate chamber.

In the first embodiment shown in FIGS. 1 to 4, the middle mattress section 14, which forms the bearing surface of the mattress 10, is made of a film-like carrier material, as shown in FIG. 5. This substrate is so thin that, when the mattress 10 is placed on or under a bearing pad of a surgical table, the patient's bearing height is practically unchanged. For example, the thickness of the support material is in a range of 0.2 to 2 mm.

The mattress 10 according to the first embodiment is thus suitable for use with an operating table which itself has a bearing pad for permanently elastic bearing of the patient. The middle mattress section 14 has no permanently elastic bearing function due to its foil-like design.

If the vacuum chamber 11 of the mattress 10 is formed from a plurality of separate chambers, it is necessary to provide a separate valve for each of these chambers via which the chamber can be evacuated. Corresponding embodiments are shown by way of example in FIGS. 1 and 3. Alternatively, the individual chambers also be interconnected via air lines. A corresponding second embodiment is shown in the cross-sectional view of Figure 6.

The second embodiment shown there is identical to the embodiment shown in Figure 5, except that the chambers forming the vacuum chamber 11 are interconnected via an air line 40 shown in dashed lines. The air duct 40 extends within the central mattress section 14. Preferably, the air duct 40 is arranged in an edge region of the middle mattress section 14, that is to say outside that region on which the body center of gravity normally rests. This prevents the air duct 40 from being pressed by the weight of the patient.

While in the first embodiment shown in FIG. 5 the middle mattress section 14 is designed as a single layer, in the embodiment shown in FIG. 6 the middle mattress section 14 has a two-layered construction. The air duct 40 is arranged between the two layers of the mattress section 14.

FIG. 7 shows a third embodiment of the mattress 10 in a cross-sectional view.

In the embodiment shown in Figure 7, the film-like central portion 14 is replaced by a pad 44 forming the bearing surface. The pad 44 forms a permanently elastic bearing element. The mattress 10 according to FIG. 7 is placed directly on the table surface of the operating table so that the latter does not have to have its own bearing pad. The pad 44 is, for example, an integral foam pad or a pad, which consists of a reference material with a preferably multi-layered foam core inserted therein. In the latter embodiment, the envelope of the vacuum chamber 11 and the cover material of the pad 44 are preferably made of the same material.

The embodiment shown in Figure 7, except for the formation of the middle mattress section as a permanently elastic pad 44, be combined with the embodiments described above and their modifications.

In the figures 8 to 12 operating table systems are shown which illustrate typical applications of the mattress according to the invention.

FIG. 8 is a schematic representation of an operating table system 50 comprising an operating table 52 and the mattress 10 according to the invention.

The operating table 52 has a table surface 54 on which a bearing pad 60 is arranged. The mattress 10 corresponds in the application shown in Figure 8, for example, the embodiment shown in Figure 5 or 6, in which the middle mattress section 14 consists of a film-like carrier material. The mattress 10 is arranged here between the table surface 54 and the bearing pad 60 of the operating table 52. However, it may also be on the bearing pad 60. The vacuum chamber 11 of the mattress 10 is formed in this case according to the embodiment of Figure 1 by the two elongated chambers 12, which, however, in contrast to Figure 1 does not over the entire edge regions the mattress 10, but only over part of these edge regions.

In Figure 8, the chambers 12 are still or again in the unevacitated state according to the situation before or after surgery. In particular, the operating table 54 is oriented horizontally, i. not inclined. The designated 56 patient is lying on the bearing pad 60th

In the operating table system 50 shown in FIG. 9, the table surface 54 of the operating table 52 is strongly inclined. The mattress 10 here corresponds to the embodiments shown in Figure 3, wherein the chambers 26 in turn each extend over only a part of the longitudinal edge of the mattress 10. In Figure 9, the vacuum chamber 11 is integrally formed on the upper body of the patient 56. In this case, the chambers 26 abut substantially against the arms, while the curved chamber sections 28 contact the shoulder regions of the patient 56.

FIGS. 10 and 11 show how the mattress 10 cooperates with securing elements attached to the operating table 52.

In Figure 10, the bearing pad 60 is shown, which lies on the table surface 54. The mattress 10, which is formed according to one of the embodiments shown in Figures 1 to 6, is located with its film-like middle mattress section 14 on the bearing pad 60 of the operating table 52. The vacuum chamber 11 is laterally formed on the body of the patient 56. On the operating table 54, supports 62 are attached, which abut the stabilization plates 21 and support the vacuum chamber 11 from the side.

In the operating table system 50 shown in FIG. 11, the film-like mattress section 14 is arranged between the table surface 54 and the bearing pad 60 of the operating table 54.

Instead of or in addition to the posts 62, a body strap may be attached to the operating table 52, which is guided around the vacuum chamber 11 and the patient 56 and secures the latter. In this case, the body belt 64 bears against the vacuum chamber 11.

FIG. 12 shows the operating table system according to FIG. 11 in a state in which the supports 62 or the body belt have been removed and the chambers forming the vacuum chamber 11 hang laterally from the operating table 52. In this condition, the patient may be placed on the operating table system before operation or rebound from the surgery to the transport or bedside postoperatively.

Claims

claims

A mattress (10) for storing a patient (56) on an operating table (52), having a vacuum chamber (11) containing a moldable particulate filling (18) and curable by evacuation, characterized in that the vacuum chamber (11) outside the storage area for the patient (56) at least partially in the edge region of the mattress (10) is formed.

2. Mattress (10) according to claim 1, characterized in that the vacuum chamber (11) comprises two elongated chambers (12) which are formed along two mutually opposite mattress edges, and the remaining part of the mattress (10) has a central mattress section (14 ) forms as a bearing surface, which connects the two chambers (12) with each other.

3. Mattress (10) according to claim 2, characterized in that the two elongated chambers (26) each have at their one end an inwardly curved chamber portion (28).

4. mattress (10) according to claim 3, characterized in that the vacuum chamber (11) further comprises a further elongated chamber which is formed along a mattress edge lying perpendicular to the two said mattress edges.

5. mattress (10) according to claim 4, characterized in that the chambers are interconnected to form a U-shaped vacuum chamber (11).

6. mattress (10) according to claim 4, characterized in that the chambers are formed separately from each other.

7. Mattress (10) according to claim 2, characterized in that the vacuum chamber (11) further comprises two further chambers which are formed along two mutually opposite mattress edges which are perpendicular to said mattress edges.

8. Mattress (10) according to claim 7, characterized in that the chambers are connected to each other to a circulating vacuum chamber (11).

9. mattress (10) according to claim 7, characterized in that the chambers are formed separately from each other.

10. Mattress (10) according to any one of claims 2 to 9, characterized in that the chambers each have their own valve (20) for evacuation.

11. Mattress (10) according to any one of claims 2 to 9, characterized in that the chambers have a common valve (24, 32) for evacuation.

12. mattress (10) according to claim 11, characterized in that the chambers formed separately from each other via an air line (40) are interconnected, which extends through an edge region of the middle mattress section.

13. Mattress (10) according to one of the preceding claims, characterized in that the bearing surface forming part (14) of the mattress (10) consists of a film-like carrier material.

14. Mattress (10) according to claim 13, characterized in that the carrier material consists of polyvinyl chloride.

15. Mattress (10) according to claim 13, characterized in that the carrier material consists of a textile material.

16. Mattress (10) according to any one of claims 13 to 15, characterized in that the carrier material has a thickness in a range of about 0.2 to 2 mm.

17. A mattress (10) according to any one of claims 13 to 16, characterized in that the vacuum chamber (11) has an airtight envelope (16) which consists of the same material as the carrier material.

18. Mattress (10) according to any one of claims 1 to 12, characterized in that the bearing surface forming part of the mattress (10) comprises a pad (44).

19. Mattress (10) according to claim 18, characterized in that the pad (44) is formed from a foam.

20. Mattress (10) according to claim 19, characterized in that the pad (44) is an integral foam pad.

21. Mattress (10) according to claim 19, characterized in that the pad (44) consists of a cover material with a foam core inserted therein.

22. Mattress (10) according to claim 21, characterized in that the foam core is formed in multiple layers.

23. Mattress (10) according to claim 21 or 22, characterized in that the vacuum chamber (11) has an airtight envelope, which consists of the same material as the reference material.

24. Mattress (10) according to one of the preceding claims, characterized in that on the outside of the vacuum chamber (11) at least one stabilizing element (21) is arranged.

25. Mattress (10) according to claim 24, characterized in that the vacuum chamber (11) forming chambers each have on their outer side an elongated stabilizing plate (21) made of plastic, which extends along the respective chamber.

26. Mattress (10) according to any one of the preceding claims, characterized in that the vacuum chamber (11) in the non-evacuated state on the bearing surface is hinged.

27. mattress (10) according to any one of claims 2 to 26, characterized in that the chambers are about 100 mm to 300 mm wide.

A mattress (10) according to any one of claims 2 to 27, characterized in that the elongate chambers are shorter than the edge regions of the mattress (10) in which they are formed.

29. Mattress (10) according to one of the preceding claims, characterized in that the particle filling (18) consists of polystyrene particle foam.

30. Mattress (10) according to one of the preceding claims, characterized in that it is permeable to X-rays.

31. An operating table system (50) with an operating table (52) which has an adjustable table surface (54), characterized by a mattress (10) which can be attached to the table surface (54) according to one of the preceding claims.

32. The operating table system (50) according to claim 31, characterized in that a bearing pad (60) is arranged on the table surface (54) and the mattress (10) according to any one of claims 13 to 17 on the bearing pad (60) or with its bearing surface forming part between the table surface (54) and the bearing pad (60) is arranged.

33. The operating table system (50) according to claim 31 or 32, characterized in that the operating table (52) has at least one support (62) which supports the vacuum chamber (11) of the mattress (10) in the evacuated state on the outside thereof.