WO2019185971A1 - Chaise d'accouchement multifonctionnelle - Google Patents

Chaise d'accouchement multifonctionnelle Download PDF

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Publication number
WO2019185971A1
WO2019185971A1 PCT/FI2018/050236 FI2018050236W WO2019185971A1 WO 2019185971 A1 WO2019185971 A1 WO 2019185971A1 FI 2018050236 W FI2018050236 W FI 2018050236W WO 2019185971 A1 WO2019185971 A1 WO 2019185971A1
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WO
WIPO (PCT)
Prior art keywords
seat
padding
area
back rest
multifunctional
Prior art date
Application number
PCT/FI2018/050236
Other languages
English (en)
Inventor
Helena PETTERSSON
Elina KEIHÄNEN
Original Assignee
Relaxbirth Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Relaxbirth Oy filed Critical Relaxbirth Oy
Priority to PCT/FI2018/050236 priority Critical patent/WO2019185971A1/fr
Publication of WO2019185971A1 publication Critical patent/WO2019185971A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
    • A61G15/005—Chairs specially adapted for gynaecological purposes, e.g. obstetrical chairs

Definitions

  • the present invention relates to a multifunctional birthing chair used to assist delivery and childbirth in different stages of labor. [0002]
  • a multifunctional birthing chair comprising a seat, a back rest configured to be adjustable so that at least the angle of the back rest in relation to the seat can be changed, and a set of adjustable foot rests configured to provide countersurface for soles of the feet of a person on the seat so that knees of the person are preferably bent to an angle.
  • the seat comprises a top provided with padding, an U-shaped cutout facing away from the back rest, a first area of padding extending over at least the area on the same sides of the seat with the prongs of the U-shape and having a first degree of compressibility, and a second area of padding extending from the bottom of the U-shape towards the back rest, the second area of padding having a second degree of compressibility that is greater than the first degree of compressibility.
  • a multifunctional birthing chair wherein the second area of padding extends from the bottom of the U-shape to the opposite edge of the seat facing the back rest.
  • the second area of padding extends from the bottom of the U-shape partially to the opposite edge of the seat facing the back rest.
  • a multifunctional birthing chair comprising a set of handle bars configured to be adjustable so that the set of handle bars can be set on such a distance from each other that the distance is in minimum the width of the shoulder joints of a person having back against the back rest.
  • a multifunctional birthing chair comprising a set of handle bars configured to be adjustable so that the set of handle bars can be set on vertically on the level of the shoulder joints of a person having back against the back rest.
  • a multifunctional birthing chair comprising a set of foot rest having two separately adjustable pads configured to be adjustable so that a person placed on the seat may set soled of her feet on the pads.
  • a multifunctional birthing chair wherein the back rest is configured to be adjustable from vertical 90° angle in relation to the level of the seat to a minimum of -10° angle in from horizontal level in relation to the level of the seat so that the back rest is set below the seat level.
  • a multifunctional birthing chair wherein the set of handle bars comprise two handles that are preferably closed loops.
  • the ninth aspect of the invention there is provided a multifunctional birthing chair, comprising two side panels attached by jointed fasteners on the sides of the back rest so that the angular position between the back rest and the side panels can be adjusted.
  • the seat for a multifunctional birthing chair comprises a top provided with padding, an U-shaped cutout with a bottom and two prongs extending at the sides of the bottom of the cutout, a first area of padding extending over at least the area on the same sides of the seat with the prongs of the U- shape and having a first degree of compressibility, and a second area of padding extending from the bottom of the U-shape towards the opposite edge of the seat, the second area of padding having a second degree of compressibility that is greater than the first degree of compressibility.
  • a seat wherein the second area of padding extends from the bottom of the cutout of the U- shape to the opposite edge of the seat facing the back rest.
  • a seat for a multifunctional birthing chair wherein the second area of padding extends from the bottom of the U-shape towards the opposite edge of the seat so that at least the opposite edge is covered by the first area of padding.
  • the second area of padding is limited by the first area of padding and the edge of the U-shape.
  • the second area of padding is limited by the first area of padding and the edge of the U-shape and the opposite edge of the seat.
  • FIGURE 1 illustrates a multifunctional birthing chair in accordance with at least some embodiments of the present invention
  • FIGURE 2 illustrates the device of FIGURE 1 in one of its position settings
  • FIGURE 3 illustrates the device of FIGURE 1 from back
  • FIGURE 4 is a perspective view of the device of FIGURE 1;
  • FIGURE 5 illustrates an example of a seat capable of supporting at least some embodiments of the present invention
  • FIGURE 6 depicts one more position setting of the apparatus
  • FIGURE 7 is another view of the setting of FIGURE 6, and
  • FIGURE 8 depicts one further position setting of the apparatus of FIGURE 1.
  • the term“compressibility” is a measure of the relative volume change of a fluid or solid as a response to a pressure (or mean stress) change. The compressibility is greater for soft materials than for harder materials.
  • the adjustable, multifunctional birthing chair can be used to aid all stages of the labor, namely the opening, pushing and afterbirth stages.
  • the mechanical structure of the device can be realized so that the device is excellent aid for the mother and safe, usable instrument for professionals assisting with the childbirth.
  • the embodiments of the invention enable childbirth in an upright vertical position so that gravity and natural female anatomy and biomechanics of the parturient support the natural childbirth in a best possible way.
  • birthing in an upright position allows the parturient to have her pelvis in a favourable position. In this position, the superficial pelvic area muscles can be relaxed, increasing the mobility of the pelvis and simultaneously helping to advance labor.
  • the position of the spine and legs and the possibility to change position of the back or the pelvis can furthermore ease the child’s descent, and is therefore advantageous for the birth process.
  • FIGURE 1 illustrates a multifunctional birthing chair in accordance with at least some embodiments of the present invention.
  • the device is set on undercarriage 1.
  • the undercarriage 1 is in this embodiment is preferably a four pointed star that has wheels 4 at the ends of each point.
  • the device can be easily moved on the wheels.
  • the wheels 4 are preferably lockable.
  • a chassis 2 At the centre of the undercarriage 1 is a chassis 2.
  • the chassis 4 forms a mounting point for some parts of the device and may contain actuators, drivers, batteries and control equipment for providing the movements and adjustments of the apparatus.
  • On the chassis 4 is mounted a seat 3, a back rest 5 and a set of foot rests 6. All these parts are mounted on the top part 7 of the chassis 4.
  • the chassis 4 includes elements for adjusting height of the top part 7 in relation to the undercarriage.
  • the seat 3, back rest 5 and the set of foot rests 6 are mounted on the top part 7, the elevation of all of these parts can be adjusted by controlling the height of the top part 7.
  • the seat 3 should be set comfortably low. This makes settling on and off the seat easy and comfortable.
  • the parturient may have her foot soles comfortable resting on a floor.
  • the seat 3 and all other supporting structures can be raised to a height where the medical personnel assisting in delivery can operate safely and comfortably.
  • the seat 3 and back rest 5 can be adjusted separately.
  • the seat 3 may be fixed to the top part 7. In this way only the height of the seat 3 can be changed. If more adjustability is needed, the distance of the seat 3 from the back rest 7 and the angle of the seat 3 in horizontal direction can be made adjustable.
  • the main direction of adjustment of the back rest 5 is the angular position in relation to the seat 3.
  • the adjustment positions of the back rest 5 are described in more detail below, but in order to obtain possibility to adjust the back rest from fullyupright position to a Trendelenburg position, the back rest should be adjustable from vertical 90° angle in relation to the seat 3 to a -10° angle from the horizontal level, the horizontal level normally being the level of the seat 3, so that the back rest can be set below the seat level.
  • a set of foot rests 6 are mounted on the top part 7.
  • the main function of the set of foot rests is to provide solid support for the feet of the parturient so that she can push the soles of her feet steadily against the set of foot rests during the pushing stage.
  • the set of foot rests comprise two independently adjustable pads 8.
  • the pads 8 are formed of a semi-circular grooved frame 9 and a detachable filler 10 that can be placed in the groove. See figure 4.
  • the surface of the pad 8 is flat and provides solid and steady surface for pushing with a foot.
  • the grooved frame forms a support for calf as in gynaecological examining chairs or tables.
  • the set of foot rests 6 have to be adjustable so that the parturient can set the soles of her feet flatly against the surface of the pad 8.
  • the pads In order to be able to exert any considerable force against the pads 8, the pads have to be adjustable so that the knees of the parturient can form an angle between the femur and tibia. In this position, when the parturient’s feet are firmly planted on an optimally adjusted surface while pushing, she is able to activate her stomach muscles, helping to direct the pushing in an advantageous way.
  • the adjustment of the set of foot rests 6, in this example, the position of the pads 8 can be accomplished in several ways. In the embodiment of the figures, the pads 8 are set on ends of bars 11 by end joints 12.
  • the opposite ends of the bars are mounted on the top part 7 with connecting joints 13 that have two degrees of freedom so that bars can be tilted in sideways in relation to the top part and vertically.
  • the top part 7 has a groove 13 along which the connecting joint can be moved. This construction enables adjusting the distance of the pad 8 from the seat 3, the height of the pad 8 and the angle of the pad 8 at the end of the bar 11.
  • FIGS 6 and 7 show a gynaecological position, wherein the set of foot rests 6 is risen above the level of the seat 3.
  • FIGURE 8 is depicted a Trendelenburg position wherein the set of foot rests is on about the same level as the seat 3.
  • the design of the set of the foot rests 6 may vary.
  • the set may be mounted on the chassis 2 by a T-shaped bar wherein the pads are at the ends of the T.
  • the positions of the pads should be separately adjustable.
  • the set of foot rests is formed of a single elongated rail or bar, but in such case some of the adjustability may be compromised.
  • the back rest 5 is at least angularly adjustably mounted on the top part 7.
  • the back rest is in this example formed of two panels 14 that are set in a slight angle so that they form a V-shape. Since the back rest is slightly grooved at the centre, the form of the back rest aids the parturient to stay on the back rest especially in positions wherein she is lying down on the back rest.
  • On the sides of the back rest 5 are side panels 15 that extend partially along the sides of the back rest 5 from the seat level. The length and width of the side panels 15 may vary.
  • the side panels 15 are joined with the back rest 5 with jointed fasteners 16 that enable adjusting the angle between the back rest 5 and the side panel 15. This function is described in more detail below.
  • the set of handle bars 16 can be turned to the front of the back rest 5 or away from the sides of the back rest 5 as can be seen from FIGURES 2 and 7, for example.
  • the set of handle bars comprise two handle bars that each have an arm 18 that is attached to the rotatable joint 17, a length adjustment unit 19 and a handle loop 20.
  • the angular position of the handle bars can be adjusted by rotating the handle bar on the rotatable joint 17.
  • the length of the handle bar is adjusted by the length adjustment unit 19. This can be a worm screw or a telescopic tube, for example.
  • the handles are herein handle loops 20.
  • the loop is preferably a closed loop and has slightly triangular form for providing straight sections for alternate gripping positions.
  • This type of handle has several benefits.
  • the loop is structurally very strong and solid, providing a secure grip.
  • the loop also enables several gripping positions.
  • the pressure point can be set on the palm, on the root of the thumb or the handle can be gripped firmly by the fingers and palm for a friction grip.
  • the parturient can choose a grip that feels most comfortable and she can change the grip during the childbirth as she wishes.
  • Two separate handles are preferred, but a single handle bar with suitable handles can be contemplated.
  • handles may be used, for example such as used in bicycles and exercise apparatuses.
  • the handles may be formed as open loops.
  • the set of handles should be adjustable so that the handles can be positioned on the height of the shoulders (shoulder joints) and slightly wider than the width of the chest of the parturient so that the handles are in front of the shoulder joints.
  • the distance of the handles from the back rest should be adjustable so that the parturients arms can be bent. This gives a position wherein the highest force can be exerted on the handles and best support for pushing stage can be achieved.
  • other adjustment positions are possible if the parturient feels such position more comfortable.
  • FIGURES 1 - 4 show some positions on which the device can be set.
  • FIGURES 6 and 7 depict a gynaecological lying position, wherein the parturient is lying down on the back rest 5.
  • the side panels 15 can be turned on the side on the same level as the back rest and the set of handle bars 16 can be turned away.
  • a medical professional may give anastaesia or perform diagnostic actions, nursing practises and treatment without hindrance of the handle bars, and with the side panels providing extra surface and support.
  • Figure 8 depicts a setup for Trendelenburg position. In this position the back rest is lowered in an angle below the level of the seat 3.
  • FIGURE 4 illustrates in more detail a seat 3 capable of supporting at least some embodiments of the present invention.
  • the seat has a seat body with an attachment 21 for mounting the seat 3 on the device.
  • the attachment 21 can be positioned to the back of the seat body or below the seat body on the side of the seat that is set towards the back rest 5.
  • On the opposite edge of the attachment 21 is a U-shaped cut-out 22 that has prongs 23 on each side of the cut-out 22.
  • padding On the top of the seat 3 is padding that comprises at least two areas of padding, a first area of padding 24 extending over at least the area on the same sides of the seat 3 with the prongs 23 of the U-shape and having a first degree of compressibility, and a second area of padding 25 extending from the bottom of the U- shape 22 towards the attachment 21 and back rest 5, the second area of padding 25 having a second degree of compressibility that is greater than the first degree of compressibility.
  • the second area of padding 25 extends in this embodiment from the bottom of the U-shape 22 to the opposite edge of the seat 3 facing the back rest 5. Alternatively, the second area of padding may extend only partially towards the opposite edge of the seat.
  • the dimensions of the second area of padding 25 can be contemplated by the dimensions of the bone structure of the pelvis. This structure is composed of iliac bone that has two branches that are joined by sacrum through sacroiliac joints. Sacrum connects to the backbone and at the opposite side of the sacrum is coccyx. The weight of a sitting person is set mainly on ischial tuberosities.
  • the width of the second area of padding is determined so that ischial tuberosities should rest on the first area of padding and the area between them should consist of the second area of padding. As the parturient moves on the seat during the childbirth, the dimensioning is hard to pinpoint exactly. However, the distance of female ischial tuberosities is statistically most likely between 100 - 160 mm. Therefore, the minimum width of the second area of padding can be contemplated to be at minimum 90 mm, preferably 100 mm and in maximum 150 mm.
  • the second area of padding is wedge shaped and narrow from the bottom of the U-shape towards the opposite edge of the seat. This provides better support for the ischial tuberosities and more freedom of movement for sacrum and coccyx.
  • the second area of padding forms a soft support for the sacrum.
  • the padding can be manufactured as one part of single material having variable compressibility.
  • a seat may be made by casting from a suitable polymer, the compressibility of which is adjusted by controlling foaming or by additives, for example.
  • One other possibility is to use two or more separate parts having the prescribed compressibility rate or degree.
  • the embodiments of the invention comprise three main elements that can be combined to various setups. These three elements are the set of handle bars, set of foot rests and the combination of back rest and seat. These elements facilitate the possibility to use the whole body, lower limbs and hands for enhancing the pushing action and aid for directing the pushing power and proving pushing leverage in a most efficient way.
  • the set of handle bars and set of foot rest are adjustable according to the measures of the parturient’s body, which helps to activate the stomach muscles and at the same time facilitates targeting the pushing, hence making the pushing more effective.
  • the structure of the seat enables the parturient to adjust her pelvis to an advantageous pushing position and helps relax the tensed and overactive muscles of the pelvic area by tilting the pelvis backwards. Soft support provided for the sacrum guides the parturient to round up her lower back and enables alteration of the position so that it propagates the birth.
  • Optimal pushing position is achieved when the set of handle bars is adjusted according to the dimensions of the parturient body and designed and positioned so that they enable setting the hands and pushing direction directly forwards in relation to the back rest and the chest of the parturient.
  • the set of foot rests are adjusted accordingly on basis of the dimensions of the parturients body on a correct height and distance so that she can rest the soles of her feet on the pads of the set of foot rests regardless of the tilting angle of the back rest.
  • the angle of the pads can be adjusted so that the pads in relation to the angle of the pelvis form a support against which the parturient can push so that the pressure in the pushing movement is spread evenly over the whole area of the sole.
  • the seat comprises a softened area of padding (second area of padding 25) that is dimensioned to comply with the dimensions of the female pelvis.
  • the softened area is positioned and dimensioned so that it is set between the ischial tuberosities of the iliac bones.
  • This design enables greatest possible freedom of movement of the position of the parturient, her pelvis, sacrum and coccyx regardless of the angle of the back rest and the angle of the parturients pelvis. Because of this design, the sacrum and coccyx have more space to move. There is also less loading for the sacroiliac joints, reducing the pressure for the area.
  • the soft support provided also enables the parturient to round up her lower back and enables alteration of the position so that it propagates the birth.
  • the seat may comprise a top provided with padding, an U- shaped cutout with a bottom and two prongs extending at the sides of the bottom of the cutout , a first area of padding extending over at least the area on the same sides of the seat with the prongs of the U-shape and having a first degree of compressibility, and a second area of padding extending from the bottom of the U-shape towards the opposite edge of the seat, the second area of padding having a second degree of compressibility that is greater than the first degree of compressibility.
  • the second area of padding may extend from the bottom of the U-shape towards the opposite edge of the seat so that at least the opposite edge is covered by the first area of padding. It can be contemplated, that the second area of padding is limited by the first area of padding and the edge of the U-shape or the second area of padding is limited by the first area of padding the edge of the U-shape and the opposite edge of the seat.
  • the embodiments of the invention enable various action related to childbirth, such as anaesthesia.
  • a medical professional assisting the delivery can adjust the device optimally for birth.
  • the medical professional may aid the parturient and the child more easily.
  • After the birth the device can be used for afterbirth procedures such a removal of placenta and sewing.
  • the back rest of the device is adjustable preferably form at least to 90° angle in relation to the level of the seat (completely straight sitting position) to -10° below the seat level (or full lying down position) to so called Trendelenburg position.
  • the device can be set to a so called lithotomy position by the adjustable set of foot rests.
  • the device can be moved easily on wheels.
  • the wheels should be lockable.
  • Seat may be constructed as one or two pieces enabling use in different stages of childbirth.
  • One, fork shaped or having a shape of opening U is formed so that the assisting personnel has a good view of and unrestricted access to the perineum and emerging child.
  • Another part may be set on top of the U-shaped part so that an even flat surface is obtained.
  • One or more parts of the seat can be overlaid or covered or an auxiliary padding may be provided to increase comfort.
  • the inner edge of the U-shape is made deeper or angled in relation to the rest of the seat surface.
  • the second area of padding is softer that rest of the surface area of the seat. This softer area is intented to enable enhanced mobility for sacrum and coccyx, which from the biomechanics and female anatomy point of view has several advantages. This reduces the loading on the sacro-iliaca (SI) joints and helps descent of the child in a birth canal, and finally birth.
  • SI sacro-iliaca
  • the back rest can be made of one piece or several pieces. It can be adjusted to a sitting position, to a half sitting position, to a lying position and to a Trendelenburg position wherein the head of the person is +ffr lower than the pelvis.
  • the back rest may be covered, overlaid or provided with a removable cover for extra comfort.
  • Side panels offer protection and comfort and a possibility to relax in various positions. They can be used as sideboards or transferred to a same level with the back rest so that they function as extensions of the back rest and can be used as a worktop for anastaesia or performing diagnostic actions, nursing practises and treatment. Also these parts can be may be covered, overlaid, or provided with removable extra padding.
  • Seat in combination with the side panels form a seat frame that is highly adjustable and changeable during different phases of the childbirth. They are adjustable in height in combination enabling ergonomic posture and good working height for assisting personnel. Usable in various positions as described above.
  • Set of handle bars The handles enable pushing action in direction to forwards from the parturients chest helping to activate stomach muscles, and at the same time helping the parturient to target her pushing power to advance the childbirth.
  • the set of handle bars is adjustable in multiple directions whereby ergonomic adaptation to the parturients bodily dimensions is assured.
  • the set of handle bars can be turned away when not needed.
  • the set of handle bars are configured to be adjustable so that the set of handle bars can be set on such a distance from each other that the distance is in minimum the width of the shoulder joints of a person having back against the back rest.
  • the set of handle bars is configured to be adjustable so that the set of handle bars can be set on vertically on the level of the shoulder joints of a person having back against the back rest.
  • Set of foot rests The set of foot rests is adjustable in multiple directions whereby ergonomic adaptation to the parturients bodily dimensions is assured.
  • the set of foot rests can be turned aside when not needed or when it is desired to rest the feet on the floor.
  • the rests may function as resting supports or pushing supports or rests in a litotomy position.
  • the pads of the rests may be adapted to different used by using or removing fillers.
  • the set of handle bars, back rest, seat and set of foot rest together provide an embodiment wherein use of pelvis, lower limbs and hands is active enhancing pushing and directing the pushing force.
  • the stomach muscles are activated as well. The combination aids to direct the pushing force in a natural and advantageous way.
  • the invention can be used for providing birthing chairs or other type of apparatuses for aiding childbirth.

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  • Health & Medical Sciences (AREA)
  • Gynecology & Obstetrics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

Selon un aspect donné à titre d'exemple de la présente invention, l'invention concerne une chaise d'accouchement multifonctionnelle, comprenant un siège (3), un dossier (5) configuré pour être réglable de telle sorte qu'au moins l'angle du dossier (5) par rapport au siège (3) peut être changé et un ensemble de repose-pieds (6) réglables conçus pour fournir une contre-surface pour les semelles des pieds d'une personne sur le siège (3) de sorte que les genoux de la personne puissent être pliés selon un angle. Le siège (3) comprend une partie supérieure pourvue d'un rembourrage, une découpe en forme de U (22) faisant face au dossier, une première zone de rembourrage (24) s'étendant sur au moins la zone sur les mêmes côtés du siège avec les broches (23) de la forme en U et ayant un premier degré de compressibilité, et une seconde zone de rembourrage (25) s'étendant depuis le fond de la forme en U vers le dossier (5), la seconde zone de rembourrage (25) ayant un second degré de compressibilité qui est supérieur au premier degré de compressibilité.
PCT/FI2018/050236 2018-03-29 2018-03-29 Chaise d'accouchement multifonctionnelle WO2019185971A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/FI2018/050236 WO2019185971A1 (fr) 2018-03-29 2018-03-29 Chaise d'accouchement multifonctionnelle

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Application Number Priority Date Filing Date Title
PCT/FI2018/050236 WO2019185971A1 (fr) 2018-03-29 2018-03-29 Chaise d'accouchement multifonctionnelle

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WO2019185971A1 true WO2019185971A1 (fr) 2019-10-03

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180062A (en) * 1978-04-10 1979-12-25 James Alberti Portable childbirth chair with electronic monitoring apparatus
GB2169500A (en) * 1984-12-07 1986-07-16 Rocket Of London Ltd Obstetrical chairs
EP0290502B1 (fr) * 1986-11-11 1993-05-19 GARDOSI, Jason Otto Coussin obstetrique
WO2009138548A1 (fr) * 2008-05-16 2009-11-19 Eija Pessinen Dispositif d’aide à l’accouchement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180062A (en) * 1978-04-10 1979-12-25 James Alberti Portable childbirth chair with electronic monitoring apparatus
GB2169500A (en) * 1984-12-07 1986-07-16 Rocket Of London Ltd Obstetrical chairs
EP0290502B1 (fr) * 1986-11-11 1993-05-19 GARDOSI, Jason Otto Coussin obstetrique
WO2009138548A1 (fr) * 2008-05-16 2009-11-19 Eija Pessinen Dispositif d’aide à l’accouchement

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