EP0612237B1 - Parturition bed - Google Patents

Abstract

A parturition bed having a lying surface (1) transversely divided into two mutually adjustable parts has a main supporting part (2) and a leg supporting part (3) that may be adjusted from a common lying plane into planes approximately parallel to the lying plane located at different heights with respect to each other. The leg supporting part (3) can be moved when it is in a lowered position in relation to the main supporting part (3) can be moved when it is in a lowered position in relation to the main supporting part (2) in the longitudinal direction of the parturition bed into a free space located below the main supporting part (2), at least in the pelvis supporting area of the latter. In order to allow the parturient to take any desired position, including a vertical position, during childbirth, while ensuring easy access to the doctor and midwife, the main supporting part (2) is supported on an overhanging beam (6) with relation to a main stay (5) arranged at the head end of the main supporting part (2) and supported on the floor (4), and can be lifted into a higher position and lowered back again by an adusting mechanism (8, 9, 11, 12, 13).

Description

The invention relates to a birthing bed with a lying surface which is divided into two mutually adjustable parts, etc. a main bearing part supporting the upper body and the pelvis of the parturient and a leg supporting part supporting the legs, the main bearing part and the leg bearing part being mutually adjustable from a common lying plane located at a predetermined height in planes located at different heights and approximately parallel to the lying plane, u. between by lowering and lifting the leg support part by means of an adjustment mechanism, and the leg support part being displaceable in the position in the longitudinal direction of the birth bed under the main support part, in a position lower than the main support part, into a space provided at least in the pelvic region below the main support part.

Simple birthing beds are known for example from US-A-4,615,058, EP-A-0 136 419, US-A-4,682,376 and DE-GM - 88 06419.

From US-A-2,832,655 a childbirth bed of the type described in the opening paragraph is known, in which the leg support part can be lowered to just below the main support part and can be inserted in the lowered position under the main support part, so that the childbirth bed can be used as a gynecological chair. A very similar bed is known from AU-A - 8 326 375.

However, all of these known beds or childbirth beds only allow the childbearing woman to assume lying or half-sitting positions.

According to the knowledge gained again, movement during the birth process as well as an upright birth result in various medical advantages and the possibility of more conscious experience for the expectant parents.

Up until now, improvisation on the floor with sticks and mattresses was necessary for such an upright delivery and the integration of the partner. The doctor and midwife had to adopt difficult postures in order to be able to lead a birth in positions other than lying down.

The invention has for its object to provide a birthing bed that meets the new demands of natural obstetrics, including upright birth, where the woman can determine her position yourself and the partner with good accessibility for the doctor treating in an upright posture or the midwife is integrated. Furthermore, it should be possible to convert it quickly into an operating table for any medical interventions that may be necessary.

This object is achieved in that the main bearing part is supported on a bracket projecting from a main support arranged at the head end region of the main bearing part and can be raised and lowered again from a predetermined lying height into a higher position by means of an adjustment mechanism, independently of the leg bearing part.

In the older, but post-published EP-A-0 491 165 a childbirth bed is described, in which a main bearing part and a leg bearing part can also be adjusted in height relative to one another, but the leg bearing part can only be pushed under the main bearing part in a completely lowered position. The leg support part can only be fixed at a certain height, so it cannot assume any intermediate height positions between its uppermost position and its lowest position. It is therefore hardly possible for the woman giving birth to take a squatting position, and even if so, this squatting position can only be taken up near the floor, so that the doctor or midwife must adopt a stooped posture during all of her manipulations.

In the semi-lowered position, which would allow a crouching position in a slightly higher position, the leg support part cannot be inserted under the main support part, since a height adjustment device for the main support part, which is designed as a column, would be in the way in the pelvic region of the main support part. This makes access to the leg support part protruding forward very difficult - the doctor or midwife has to bend over the protruding front end of the leg support part.

In contrast, the inventive arrangement of the main support at the head end area of the main bearing part below it creates a free space, so that the leg bearing part can be inserted at any height position under the main bearing part.

The birthing bed according to the invention offers the possibility of creating two levels with a level difference, which enables both the sitting posture for the woman giving birth and the squatting position on the lower level, alone or supported on the legs of the partner sitting on the upper level. This difference in level is of the order of 50 cm. It is important here that the leg support part can be partially inserted under the main support part, so that there is good access from the front.

In order to offer the most versatile possible adjustment, the main bearing part and the leg bearing part can preferably be continuously raised and lowered.

An expedient space-saving construction is characterized in that the main bearing part can be raised and tilted with respect to the carrier rigidly arranged on the rigid main support, the leg bearing part advantageously being able to be brought in a lowered position under the carrier carrying the main bearing part.

To achieve an inclined position of the parturient, the main bearing part can advantageously be adjusted to different inclinations by means of the adjustment mechanism.

In order to be able to use the birthing bed also as a gynecological chair, according to a preferred embodiment the main bearing part has a back and a pelvic plate, which are connected to one another in an articulated manner and can be brought individually into different inclinations.

In order to ensure a clear assignment of the leg support part to the main support part, a guide rail is advantageously arranged on the main support in the direction of the cantilever and supporting the main support part, along which the leg support part can be moved.

A further preferred embodiment is characterized in that the leg support part can be removed completely from the main support part, the leg support part being supported by means of swivel arms on a separate support frame provided independently of the main support of the main support part.

To facilitate the sitting and squatting position, the leg support part is advantageously equipped at its end facing the main storage part with a convexly projecting, preferably semicircular part, which engages in a concave indentation arranged opposite one another on the main storage part, with the main storage and leg storage part located at the same height.

A universal usability of the birthing bed is particularly given when a plug-in back is provided, which can be plugged on both at the head end of the main bearing part, preferably at the level of the support supporting the main bearing part, and at the foot end of the leg bearing part, and when handle supports and / or leg supports are also provided , the can be attached either to the main bearing part and / or to the leg bearing part.

In order to ensure the mutual position of the leg support part with respect to the main support part or to fix the leg support part with respect to the main support part, the leg support part can advantageously be connected to the guide rail by means of brake shoes engaging the guide rail and guided on the guide rail by means of guide rollers, the guide rail preferably being used as an energy supply line, preferably as Current conductor, is designed to supply the adjustment mechanism of the leg support part.

Independent movement of the leg support part is advantageously ensured in that the leg support part is supported on the foundation by means of support rollers mounted on its support frame, the support rollers of the leg support part advantageously being designed as fixable steering rollers.

In order to ensure an infinitely variable adjustment option, both the main bearing part and the leg bearing part are expediently each equipped with their own electrically operated hydraulic unit.

A structurally simple construction, which enables both the lifting and lowering and inclinability of the main bearing part, is characterized in that the main bearing part has a frame which can be raised and lowered with respect to the carrier and which is arranged with a head end as well as at the opposite end The toggle lever is articulated to the carrier, wherein on each of the toggle levers a hydraulic cylinder articulated on the one hand on the knee and on the other hand on the carrier or on the frame acts.

The invention is explained in more detail below using an exemplary embodiment shown in the drawing, FIGS. 1 and 2 each showing a side view of a birthing bed once in the lying position (FIG. 1) and once with the maximum adjustable Illustrate the height difference between the main bearing part and the leg bearing part in a schematic representation. Fig. 3 is a plan view of the birthing bed, Fig. 4 shows a section taken along the line IV-IV of Fig. 1. 5, 6 and 7 each show schematic side views of the birthing bed, with FIGS. 5A to 5F showing the birthing bed in different positions, but with the main bearing part and the leg bearing part located at the same height. 6A to 6D illustrate positions of the birthing bed with the main support member and the leg support member at different altitudes, and Figs. 7A to 7D show the separate use of either only the main support member or the main support member and the leg support member. The Fig. 5 , 6 and 7 show in an analogous representation to FIGS. 5, 6 and 7 the application in practice.

The birthing bed according to the invention has a lying surface 1, which is formed by two parts which are adjustable relative to one another, etc. of a main bearing part 2, on which a childbearing woman lying on the lying surface 1 can support the upper body and the pelvis, and a leg bearing part 3, on which the legs can be supported.

The main bearing part 2 is supported on a support 6 which projects from a main support 5 fastened to the foundation 4. The main support 5 itself is firmly anchored to the foundation 4 with anchoring means 7. On the projecting carrier 6, which, as can be seen from FIG. 4, has two mutually parallel and spaced apart support arms 6 ', 6'', two toggle levers 8, 9 are articulated with one end each. The other end of the toggle levers 8, 9 is connected in an articulated manner to a frame 10 which can be raised and lowered relative to the carrier 6. On each of the toggle levers 8, 9, a hydraulic cylinder 12, 13 articulated on the one hand on the knee 11 and on the other hand on the support 6 is articulated, by the actuation of which the frame 10 can be raised and lowered continuously relative to the support 6, as shown in particular in FIGS. 1 and 2 can be seen. If the hydraulic cylinders 12, 13 are acted on unevenly, it is possible to face the frame 10 to let the carrier 6 assume an inclined position continuously, cf. e.g. Fig. 7C.

On the frame 10, a back plate 14 and a pelvic plate 15, which are articulated at 16 and are also articulated on the frame 10, are supported. Two further hydraulic cylinders 17, 18 allow both the pivoting of the back plate 14 and the pelvic plate 15 relative to one another and also relative to the frame 10 (cf. FIGS. 5B, 5D). The back 14 and pelvic plate 15 serve to receive a foam mattress 19 with a plastic cover.

The actuators for the main bearing part 2 are supplied with power via a power supply line 20 which opens into the main support 5. An electrically operated hydraulic unit 21, with which the hydraulic cylinders are supplied, is arranged in the main support 5 in a space-saving manner. The main support 5 is covered on all sides and provided with a revision door 22 in order to enable good access to the hydraulic unit 21.

Independently of the main bearing part 2, the leg bearing part 3 is supported on its own support frame 23. This support frame 23, which is also covered on all sides like the main support 5, can be moved on the foundation 4 by means of support rollers 24 designed as fixable steering rollers. In order to ensure an unambiguous assignment of the leg support part to the main support part and coupling to it, a guide rail 25, which is directed from the main support 5 of the main support part 2 parallel to the support 6 and is arranged near the floor, projects towards the free end of the support 6 and is the support frame 23 of the leg support part 3 guided on the guide rail 25 by means of guide rollers 26. Brake shoes 27, preferably hydraulically operated, serve to fix the leg support part 3 in a certain position along the guide rail 25.

The guide rail 25 also receives an energy supply line for supplying an adjustment mechanism of the leg support part 3, preferably the guide rail itself is designed as a low-voltage conductor for supplying an electrically operated hydraulic unit 28 accommodated in the support frame 23 of the leg support part 3.

A plate 31 surrounded by a rigid frame 30 can be raised and lowered on the support frame 23 by means of two articulated and mutually parallel swivel arms 29, the swivel arms 29 being adjustable by means of a hydraulic cylinder 32. The plate 31 serves to receive a foam mattress 33 with a plastic cover.

As can be seen from FIGS. 1 and 2, the mattress 33 of the leg support part 3 can be raised and lowered continuously in the horizontal position with the aid of the swivel arms 29.

As can be seen from FIG. 3, the leg support part 3 has, at its end directed towards the main support part 2, a convexly projecting semicircular part 34, which in an indentation 35 arranged opposite to the main support part 2 with the main support 2 and leg support part 3 at the same height engages so that a closed lying surface 1 is present despite this indentation. A backrest 36 is both at the head end of the main storage part 2, etc. at the level of the cantilever beam 6, as well as at the foot end of the leg support part 3, etc. into the liftable and lowerable plate 31 or its frame 30, can be inserted. As a result, the plug-in back 36, when it is attached to the leg support part (cf. FIG. 5C), can be raised and lowered with its mattress 33. Handle supports 37 and leg supports 38 can be attached either to the main bearing part 2 and / or to the leg bearing part 3.

A linkage 39 for suspending a handle 40 can be mounted on the main support 5 at the head end of the main bearing part 2. The linkage protrudes approximately to over the front half (the pelvic plate 15) of the main bearing part and projects so high that a high position below the linkage 39 can be taken.

Fig. 5A:

Die Gebärende kann eine Liege-Position einnehmen.

Fig. 5B:

Die Gebärende kann mit halb aufgerichtetem Oberkörper liegen.

Fig. 5C:

Die Gebärende kann während der Geburt eine knieende Position, aufgestützt auf den Händen oder den Unterarmen, Gesicht der Rückenplatte 14 zugewandt, einnehmen. Medizinische Vorteile: Vermeidung des Vena Cava Kompressionssyndroms, Optimierung der Geburtsachse, besserer Dammschutz, weniger Druck auf den Damm, weniger Episiotomien sind notwendig, Schmerzerleichterung vor allem in der Übergangsperiode, Erweiterung des Geburtskanales, vorteilhaft bei Schulterdystokoien ... Die Stecklehne 36 ist am Fußende des Beinlagerungsteiles 3 eingesteckt und dient als Rückenlehne. Dadurch kann sie sich nach der Geburt, vor der Abnabelung des Kindes, zurücksetzen, ohne sich umdrehen zu müssen, was höchstmögliche Sauberkeit ermöglicht.

Fig. 5D:

Die Gebärende kann eine Beckenhochlage einnehmen. Die halbkreisförmig konkave Einbuchtung 35 der Matratze 19 im Beckenbereich ermöglicht Freiraum für das Becken und guten Zugang für Arzt und Hebamme.

Fig. 5E:

Beinstützen 38 sind befestigt.

Fig. 5F:

Leicht gepolsterte Handgriffstützen 37 können sowohl am Hauptlagerungsteil 2 für die Hände (vgl. Fig. 5F) sowie am Beinlagerungsteil 3 für die Beine (vgl. Fig. 6A) befestigt werden.

Fig. 6A:

Die Gebärende kann eine halbsitzende Position bei schräg gestellter Rückenplatte 14 und geringem Niveauunterschied zwischen Hauptlagerungs- 2 und Beinlagerungsteil 3 des Gebärbettes einnehmen.

Fig. 6B:

Die Gebärende kann auf dem Hauptlagerungsteil 2 des Gebärbettes mit aufgestellter Rückenplatte 14 sitzen und ihre Beine auf den abgesenkten Beinlagerungsteil 3 des Gebärbettes stellen. Durch Verschieben des Beinlagerungsteiles 3 teilweise unter den Hauptlagerungsteil 2 ist eine sehr gute Zugänglichkeit für den Arzt bzw. die Hebamme gegeben, und diese können in aufrechter Körperhaltung arbeiten. Die halbkreisförmig konkave Einbuchtung der Matratze des Hauptlagerungsteiles 2 erlaubt Freiraum für das Becken. Medizinische Vorteile: besonders günstig für die Austreibungsperiode, die Schwerkraft wirkt mit, weniger Kraft erforderlich, der Kopf schlüpft in der Wehenpause nicht zurück, rascherer Geburtsfortschritt, der Damm ist weniger gefährdet.

Fig. 6C:

Die Gebärende kann auf dem abgesenkten Beinlagerungsteil 3 des Gebärbettes hocken und sich am Hauptlagerungsteil 2 anlehnen, wobei sie sich mit ihren Ellenbogen auf der Matratze 19 des Hauptlagerungsteiles 2 abstützen und an den Handgriffstützen 37 festhalten kann. Durch die Verschiebbarkeit des Beinlagerungsteiles entlang der Führungssschiene kann die optimale individuelle Distanz zwischen Hebamme und Gebärender eingestellt werden. Durch die Höhenverstellbarkeit des Beinlagerungsteiles kann auf die Größe der Gebärenden individuell Rücksicht genommen werden.
Medizinische Vorteile: besonders günstig für die Austreibungsperiode, Erdung durch festes Abstützen der Füße, Schwerkraft wirkt mit, weniger Kraftaufwand erforderlich, Optimierung der Geburtsachse, Kyphoisierung der Wirbelsäule, vermehrte Lungenkapazität, Entspannung des Beckenbodens, Schmerzerleichterung, Erweiterung des Beckenausganges um 1,5 cm, der Damm ist weniger in Gefahr, guter Dammschutz ist möglich, da guter Zugang für Arzt und Hebamme gewährleistet ist, rascherer Geburtsfortschritt, weniger sekundäre Wehenschwächen, das Kind findet leichter den vorteilhaftesten Weg des geringeren Widerstandes, bessere Sauerstoffversorgung für das Kind, der Kopf schlüpft in der Wehenpause nicht zurück, guter Zugang für Arzt und Hebamme, ...

Fig. 6D:

Die Gebärende kann auf dem Beinlagerungsteil 3 des Gebärbettes hocken und sich an den Beinen eines auf dem Hauptlagerungsteil 2 sitzenden Partners abstützen. Medizinische Vorteile: wie Fig. 6C, außerdem Integration des Mannes, aus dem Zuseher wird ein Mitwirkender, die Gebärende fühlt sich geborgener, dadurch entspannter, was einen besseren Geburtsfortschritt fördert.

Fig. 7A:

Den Beinlagerungsteil 3 abgesenkt und unter den Hauptlagerungsteil 2 geschoben kann das Gebärbett einfach und höchst platzsparend in einen gynäkologischen Stuhl verwandelt werden. Sind die Beinstützen 38 montiert, ist die optimale Position für etwaig notwendige Eingriffe, wie die Versorgung der Episiotomie, die Manualhilfe bei Beckenendlage, Forzeps- oder Vakuumextraktionen, geschaffen.

Fig. 7B:

Der Beinlagerungsteil 3 ist abgekoppelt und gesondert vom Hauptlagerungsteil 2 als Ablage zu verwenden.

Fig. 7G:

Für den Fall eines Nabelschnurvorfalles ist die Möglichkeit einer Schräglage für die Gebärende gegeben.

Fig. 7D:

Die Gebärende kann am Hauptlagerungsteil 2 sitzen oder hocken und sich dabei an dem von oben abgehängten Haltegriff 40 anhalten. Medizinische Vorteile: die hängende Position des Beckens zählt zu den vorteilhaftesten. Siehe 6C.

The function of the birthing bed is explained in more detail below with reference to FIGS. 5A to 7D, FIG. 5 A to 7 D each show the parturition bed in representations analogous to FIGS. 5A to 7D with the parturient:

5A:

The woman giving birth can assume a lying position.

5B:

The woman giving birth can lie with her upper body half-erect.

5C:

The woman giving birth can assume a kneeling position, supported on the hands or forearms, facing the back plate 14 during the birth. Medical benefits: avoidance of the vena cava compression syndrome, optimization of the birth axis, better perineum protection, less pressure on the perineum, fewer episiotomies are necessary, pain relief especially in the transitional period, widening of the birth canal, advantageous for shoulder dystocoia ... The plug-in backrest 36 is at the foot end the leg support part 3 inserted and serves as a backrest. This allows her to sit back after giving birth, before the child is cordoned off, without having to turn around, which enables the highest possible cleanliness.

5D:

The woman giving birth can take up a pelvis. The semicircular concave indentation 35 of the mattress 19 in the pelvic area allows free space for the pelvis and good access for the doctor and midwife.

Fig. 5E:

Leg supports 38 are attached.

5F:

Lightly padded handle supports 37 can be attached to both the main bearing part 2 for the hands (see FIG. 5F) and the leg bearing part 3 for the legs (see FIG. 6A).

6A:

The woman giving birth can be a half-seated position with the back plate 14 inclined and small Take the level difference between the main bed 2 and leg bed part 3 of the birthing bed.

6B:

The woman giving birth can sit on the main bearing part 2 of the childbearing bed with the back plate 14 raised and place her legs on the lowered leg bearing part 3 of the childbearing bed. By moving the leg support part 3 partially under the main support part 2 there is very good accessibility for the doctor or the midwife, and they can work in an upright posture. The semicircular concave indentation of the mattress of the main storage part 2 allows space for the pool. Medical benefits: particularly favorable for the expulsion period, gravity is involved, less force is required, the head does not slip back during labor, the birth progresses faster, the perineum is less at risk.

6C:

The woman giving birth can crouch on the lowered leg support part 3 of the childbirth bed and lean against the main support part 2, whereby her elbows can rest on the mattress 19 of the main support part 2 and hold on to the handle supports 37. Because the leg support can be moved along the guide rail, the optimal individual distance between midwife and childbearing can be set. Due to the height adjustment of the leg support part, the size of the parturient can be taken into account individually.
Medical benefits: particularly favorable for the expulsion period, grounding by firm support of the feet, gravity acts with, less effort required, optimization of the birth axis, kyphoization of the spine, increased lung capacity, relaxation of the pelvic floor, pain relief, expansion of the pelvic exit around 1.5 cm, the perineum is less at risk, good perineum protection is possible because good access is guaranteed for doctor and midwife, faster birth progress, less secondary contractions, the child finds the most advantageous way of lower resistance more easily, better oxygen supply for the child Child, the head does not slip back during the break, good access for doctor and midwife, ...

6D:

The woman giving birth can crouch on the leg support part 3 of the childbirth bed and be supported on the legs of a partner sitting on the main support part 2. Medical advantages: like Fig. 6C, also integration of the man, the viewer becomes a contributor, the woman giving birth feels more secure, thereby more relaxed, which promotes better birth progress.

7A:

The leg support part 3 lowered and pushed under the main support part 2, the birthing bed can be easily and very space-saving converted into a gynecological chair. If the leg supports 38 are mounted, the optimal position for any necessary interventions, such as the care of the episiotomy, the manual aid in the breech end position, forzeps or vacuum extractions, is created.

7B:

The leg support part 3 is uncoupled and can be used separately from the main support part 2 as a storage.

Fig. 7G:

In the event of an umbilical cord incident, there is the possibility of an inclined position for the woman giving birth.

7D:

The woman giving birth can sit or crouch on the main bearing part 2 and hold on to the handle 40 suspended from above. Medical advantages: the hanging position of the pelvis is one of the most advantageous. See 6C.

Claims (18)

1. Parturition bed with a lying surface (1) transversely divided into two mutually adjustable parts i.e., a main supporting part (2) providing support for the pelvis and upper part of the body of the parturient, and a leg supporting part (3) providing support for her legs, wherein both the main supporting part (2) and the leg supporting part (3) are adjustable relative to each other from a common lying plane located at a predetermined specified height in planes approximately parallel to this lying plane and at varying heights i.e., an adjustment mechanism (29, 32) allows the leg supporting part (3) to be lowered and raised, and wherein the leg supporting part (3) when it is in a lowered position relative to the main supporting part (2) is displaceable in the longitudinal direction of the parturition bed into the free space below the main supporting part (2), at least into the pelvis supporting portion of the latter,
   characterized in that the main supporting part (2) is supported on a carrier (6) cantilevering from a main stay (5) arranged on the head end of the main supporting part (2) and is liftable from the specified lying level into a higher position, and lowerable back again by means of an adjustment mechanism (8, 9, 11, 12, 13) independently of the leg supporting part (3).
2. A parturition bed according to claim 1, characterized in that the main supporting part (2) and the leg supporting part (3) can be lifted and lowered continuously.
3. A parturition bed according to claim 2, characterized in that the main supporting part (2) can be lifted, lowered and inclined relative to the carrier (6) arranged rigidly on the rigid main stay (5).
4. A parturition bed according to claim 2 or 3, characterized in that when in a lowered position, the leg supporting part (3) can be brought below the carrier (6) supporting the main supporting part (2).
5. A parturition bed according to one or several of claims 1 to 4, characterized in that the main supporting part (2) can be inclined at various angles by means of the adjustment mechanism (8, 9, 11, 12, 13).
6. A parturition bed according to one or several of claims 1 to 5, characterized in that the main supporting part (2) comprises a back section (14) and pelvis section (15) which are jointed to each other and can be inclined independently at different angles.
7. A parturition bed according to one or several of claims 2 to 6, characterized in that a guide rail (25) along which the leg supporting part (3) can be moved is arranged at the main stay (5) in such a way as to point towards the cantilevering carrier (6) supporting the main supporting part (2).
8. A parturition bed according to one or several of claims 1 to 7, characterized in that the leg supporting part (3) is completely detachable from the main supporting part (2), the leg supporting part (3) being supported on a separate supporting structure (23) provided independent of the main stay (5) of the main supporting part (2) by means of swivel arms (29).
9. A parturition bed according to one or several of claims 1 to 8, characterized in that the one end of the leg supporting part (3) that faces the main supporting part (2) is provided with a preferably semicircular part (34) that projects convexly and locks with a concave indentation (35) arranged in a matching counterposition on the main supporting part (2), whenever the main supporting part (2) and the leg supporting part (3) are at the same height.
10. A parturition bed according to one or several of claims 1 to 9, characterized in that a rest (36) is provided that is attachable at the head of the main supporting part (2), preferably at the height of the carrier (6) supporting the main supporting part (2), and/or at the foot of the leg supporting part (3).
11. A parturition bed according to one or several of claims 1 to 10, characterized in that combined hand grips and supports (37) and/or leg supports (38) are provided.
12. A parturition bed according to claim 7, characterized in that the leg supporting part (3) is connectible with the guide rail (25) by means of brake shoes (27) acting on the guide rail (25) and is guided on the guide rail (25) by means of guide rollers (26).
13. A parturition bed according to claim 8, characterized in that the leg supporting part (3) is supported on the foundation (4) by means of supporting rollers (24) bearing-mounted on its supporting structure (23).
14. A parturition bed according to claim 13, characterized in that the supporting rollers (24) of the leg supporting part (3) are in the form of lockable castors.
15. A parturition bed according to one or several of claims 1 to 14, characterized in that both the main supporting part (2) and the leg supporting part (3) are each provided with a separate electrically operated hydraulic aggregate (21, 28).
16. A parturition bed according to claim 2, characterized in that the main supporting part (2) is provided with a frame (10) that is liftable and lowerable with respect to the carrier (6), the said frame being jointed to the carrier (6) by means of one toggle lever (8, 9) arranged at its head and one at the opposing end respectively, with one hydraulic cylinder that is linked to the bend (11) on the one hand and to the carrier (6) or the frame on the other hand applying at each of the toggle levers (8, 9).
17. A parturition bed according to claim 7, characterized in that the guide rail (25) is in the form of an energy supply line, preferably a current conductor, for supplying the adjustment mechanism (29, 32) of the leg supporting part (3).
18. A parturition bed according to one or several of claims 1 to 17, characterized in that a rod linkage (39) is provided which optionally can be attached to the head of the main supporting part (2) and is provided with a strap (40).

Images