EP1824437A1 - Dispositif pour guider la jambe pendant une operation de la hanche, notamment lors de l'implantation d'une endoprothese - Google Patents

Dispositif pour guider la jambe pendant une operation de la hanche, notamment lors de l'implantation d'une endoprothese

Info

Publication number
EP1824437A1
EP1824437A1 EP05803333A EP05803333A EP1824437A1 EP 1824437 A1 EP1824437 A1 EP 1824437A1 EP 05803333 A EP05803333 A EP 05803333A EP 05803333 A EP05803333 A EP 05803333A EP 1824437 A1 EP1824437 A1 EP 1824437A1
Authority
EP
European Patent Office
Prior art keywords
leg
rail
leg guide
piston
guide according
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP05803333A
Other languages
German (de)
English (en)
Other versions
EP1824437B1 (fr
Inventor
Michael Memminger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PL05803333T priority Critical patent/PL1824437T3/pl
Publication of EP1824437A1 publication Critical patent/EP1824437A1/fr
Application granted granted Critical
Publication of EP1824437B1 publication Critical patent/EP1824437B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/0036—Orthopaedic operating tables
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/30—General characteristics of devices characterised by sensor means
    • A61G2203/42—General characteristics of devices characterised by sensor means for inclination

Definitions

  • the invention relates to an additional device for an operating table for carrying out a H
  • Hip prosthesis operations or hip operations or prosthetic implantations are performed with increasing frequency in order to replace worn hip joints with a prosthesis during the life of a patient.
  • This prosthesis is also referred to as an artificial hip joint, hip joint prosthesis or total hip endoprosthesis.
  • the method comprises firstly replacing the pelvic natural socket and then replacing the femoral head with the prosthetic portion of the femoral bone with the attached artificial head.
  • the most modern methods of hip surgery are minimally invasive, der ⁇ form that a surgical cut to reach the Gelenk ⁇ area, only 6 cm to 10 cm long and without separation of muscle or tendon tissue instead 5 can take place, so that in principle the patient can leave the same day.
  • the leg extension device is a device for exerting a longitudinal pull on the leg and for bringing the leg into certain positions (so that the operation can be carried out more easily).
  • the hip operation proceeds in several steps which are to be distinguished from one another. First, the skin incision is set and subsequently the socket is produced. puts.
  • the patient's leg is moved in a well-defined manner to allow the surgeon access to the hip head and / or femoral neck; this precisely defined movement comprises, firstly, a lowering of the leg, the leg remaining in a plane parallel to the sagittal plane of the body, secondly a rotation of the foot by about 90 ° outwards, and thirdly, attraction or adduction of the leg, then in that it is turned into an area behind the patient. Only after these movements of the leg, which is held all the time under a mechanical tension, a further work on the proximal thigh bone is possible. After replacing the condyle, the movements are performed in reverse order and sutured the wound.
  • Another disadvantage is that a lowering of the leg can not be driven away arbitrarily far down, because the foot of the patient otherwise strikes the floor.
  • One Higher-displacement of the patient is not possible because it would leave the area of an optimal operating height.
  • a device of the manufacturer Maquet is known.
  • This is a device which holds both legs of the patient and provides an adjustable tensile force on the legs of the patient via the foot ends adjustable at a distance to the trunk.
  • This device (bed) has the following disadvantages: Either the lowering of one leg is only possible stepwise in alternation with a continuous readjustment of the tension, or a completely new trauma bed must be purchased, which is expensive.
  • US Pat. No. 4,802,464 describes a pulling device for operating tables and orthopedic operating devices, which are essentially made on the lower limbs of a patient under the control of a device with a radiogenic source.
  • a device with sufficiently movable arms for applying a tensile stress is proposed, wherein the control device can be used to provide a free space.
  • the arms are articulated to the device, the joints being located near the hip joints of the patient, and pulling forces being applied to the ends of the arms by pulling devices engaged with the patient's feet.
  • the invention proposes a device for guiding a leg in a hip operation according to claim 1. Further advantages, aspects and details of the invention will become apparent from the dependent claims of the description and the drawings.
  • the invention proposes a leg guide, in particular for hip surgery, comprising a splint which contains a circular arc-like guide and is rotatable about an axis of rotation perpendicular to the circular arc-shaped guide and a leg support which is displaceably mounted on the splint.
  • the rail is longitudinally adjustable in the direction of the axis of rotation.
  • the leg guide comprises a chassis, with a holder for a socket for receiving a piston-like element displaceable in the socket and carrying the rail at its free end.
  • the Ver ⁇ sliding direction of the piston-like element is substantially parallel to the axis of rotation. According to a further aspect of the invention, the Ver ⁇ sliding direction of the piston-like element is aligned with the Dreh ⁇ axis.
  • the leg guide includes a displacement device which is designed for a defined displacement of the piston-like element and thus also the rail in the direction of the axis of rotation.
  • the piston-like element may be mounted on rolling elements against at least one inner side of the bushing
  • the piston-like element can be locked in the socket.
  • the sliding device Ver ⁇ is operated by rotating a spindle, which spindle is arranged parallel to the axis of rotation or in alignment with the axis of rotation and is freely rotatably mounted in the open side of the opposite side of the sleeve and in the piston-like element is mounted so that a rotation of the spindle causes a displacement of the piston-like element parallel to the axis of rotation or along the Dreh ⁇ axis.
  • a head member rotatably mounted about the axis of rotation and carrying the rail is provided.
  • the rail is attached to the head element of the piston-like element.
  • the rail is attached to the head member of the piston-like member by means of support members.
  • the head element can be set in relation to a rotation about the axis of rotation.
  • the piston-like element is firmly connected to the rail.
  • the piston-like element is substantially freely slidable and rotatably mounted in the female socket.
  • the piston-like element is provided with an external thread.
  • an actuating element is provided with an internal thread which fits onto the external thread of the piston-like element and can be actuated with a handle device.
  • the actuating element is mounted on an end of the piston-like element, which is arranged opposite to the end bearing the rail, wherein the bush carrying the piston-like element is arranged in the middle.
  • a rotation of the actuating element causes a displacement of the piston-like element with respect to the female socket.
  • the piston-like element is lockable in the female socket.
  • the receiving bush has a plurality of bores along a circumference perpendicular to the displacement direction.
  • the piston-like element in the female socket is locked against rotation about the axis by having a longitudinal groove extending over its substantially entire length into which a pin or screw passes via one of the bores is inserted or screwed.
  • the rail at a height h, which substantially the height of the
  • Fulcrum corresponds to a first circular arc
  • the rail is height adjustable to allow the surgeon an individual operating height
  • the leg guide is provided with lockable rollers so that it can be displaced on a floor.
  • the leg guide comprises a foot fastening device, which comprises: a sole plate for laying a sole of a foot, at least one fastening device attached to the sole plate, with which the foot is firmly engaged with the sole plate , and a hollow spar / spar which is mounted vertically to the sole plate.
  • the hollow spar is mounted on the opposite side of the heel of the foot.
  • the leg bracket is longitudinally adjustable and the two ends thereof are pivotable relative to each other in the longitudinal axis.
  • the leg support includes: a slider at a first end of the leg support, a foot attachment device at the other end of the leg support, and a device mounted therebetween for pivoting against each other and adjusting a distance between the slider and the foot fastening device.
  • the two ends of the leg support are pivotable relative to each other by at least 90 °.
  • the leg support further comprises: a slider, to which a shaft is fastened, which is connected via a hinge to an inner spar, and a hollow spar, which accommodates the inner spar and arretierbax, which is attached to the foot.
  • Be ⁇ fastening device is mounted or at least one spar on which the foot-fastening device is ver ⁇ pushed.
  • the slider supporting the leg support is received by the rail and slidable and lockable along the same.
  • the foot fastening device is attached to the end of the leg support opposite the slider.
  • the axes of the joint are locked together.
  • the multi-axis joint includes a ball joint or a cardan joint or two disks rotatable against each other.
  • the axes of the universal joint are formed by two bolts, which are arranged perpendicular to one another and can be locked by means of levers.
  • the hinge is formed of a head seated on the shaft which is adapted to rotatably support a disc-shaped end of the inner spar so that the inner spar is rotatable relative to the shaft on the common axis.
  • the joint can be locked by means of a screw.
  • the height h of the rotation axis from the bottom is 85 cm ⁇ h ⁇ 130 cm, with the following preferably being 95 cm ⁇ h ⁇ 120 cm.
  • the following applies for the first radius of curvature: 90 cm ⁇ r ⁇ 260 cm, with the following preferably: 100 cm ⁇ r ⁇ 190 cm, more preferably 120 cm ⁇ r ⁇ 160 cm, more preferably r 130 cm applies.
  • the slider supporting the leg support is provided with rolling elements.
  • the leg support is displaceably mounted on the rail in a second rail arranged perpendicular thereto.
  • the leg support bearing slider is designed in such a way that it carries a further guide rail, which is arranged at an angle of 90 ° to the first guide rail and which slidably receives the socket facing the end of the shaft ,
  • the shaft has a thread on the shaft surface in a region on the end facing the rail part.
  • a fastening part with a correspondingly fitting internal thread which is operatively engaged with the thread of the shaft, is rotatably mounted on the shaft.
  • the fastening part has handle devices and projections.
  • the slide accommodated in the rail can be locked in that the fastening part on the thread of the shaft is rotated in the direction of the rail until the shaft is firmly engaged with the rail.
  • the fastening part has four or six handle devices.
  • an orthopedic table arrangement for hip operations, comprising an operating table with means for the horizontal sacral fixation of a patient on one end of the table and a leg guide, wherein the distance of the leg from the guide rail is adjustable.
  • the operating table is arranged immovable to the leg guide.
  • the leg guide is immovable to the operating table due to its own weight.
  • the leg guide due to a screw connection to the floor is unavoidable to the operating table.
  • the leg guide is fixedly engaged with the operating table by a latching device.
  • the latching device is fixedly connected to the leg guide at one end and has a clamp at the other end which firmly engages a pillar of the operating table by means of a stirrup.
  • the operating table has a height h 'from the bottom, for which applies: 80 cm ⁇ h' ⁇ 130 cm, wherein preferably: 90 cm ⁇ h ' ⁇ 120 cm, more preferably that the Height h of the axis of rotation is substantially equal to the height h ' 1 of the hip joint.
  • a control device for hip surgery comprising an operating table and a leg guide, further comprising at least one sensor for detecting a tension on the leg of the patient as well as suitably attached and suitably coupled to the sensor positioning motors for the automatic Procedure of the leg in an operative position.
  • the control device for hip surgery includes: at least two servomotors on the multi-axis joint for pivoting the foot, a servomotor on the slider for sliding Ver ⁇ leghalterung along the rail and a servomotor on the head element for rotation of the Rail, at least one tension sensor at least on the foot mounting device, a program memory, a data memory for storing setpoints for a temporal course of a tensile stress and measured values, a device for receiving an external Speicher ⁇ medium or a network connection and a controller which, on the basis of instructions stored in the program memory, compares voltages with the setpoints and makes a ent-speaking control of the servomotors.
  • the arcuate Beinfuehrung can be replaced by a straight rail when sensors and actuators maintain a certain set tension
  • Figure 1 is a preferred embodiment of the invention seen from the side;
  • FIG. 2 shows a detail of the arrangement of the invention, the tear accommodated in the rail sliding member in a ⁇ execution in a perspective Auf ⁇ ;
  • FIG. 3 shows a detail of the arrangement of the sliding element received in the rail in an alternative embodiment
  • FIG. 4 shows a leg guide in an alternative embodiment, in which the required tension is applied to the leg by means of an actuating element
  • Figure 5 shows a leg guide in a schematic representation in side view of Figure 4;
  • FIG. 6 shows a detail of the embodiment according to FIG. 4 in a schematic illustration in a front view
  • FIG. Figure 7 shows a detail in an embodiment according to the invention, which is provided with a universal joint
  • Figure 8 shows a detail in an embodiment according to the invention, which is provided with an alternatively removable ⁇ led joint
  • Figure 9 shows a detail in an embodiment according to the invention, in which a lock the
  • FIG. 10 shows a fastening part used according to the invention
  • FIG. 11 shows an orthopedic table arrangement for hip operations with a latching device
  • Figure 12 is a schematically illustrated control device according to the invention for hip surgery.
  • FIG. 1 shows an embodiment of a leg guide according to the invention, in particular for use in a hip operation, shown schematically.
  • the leg guide 57 in particular for hip surgery, comprises a rail 31 which is rotatable about an arcuate guide and about a rotation axis 71 running perpendicular to the arcuate guide and a leg support 75 on the rail 31 is slidably mounted. More preferably, the circular arc-like guide extends along the entire extent of the rail. Due to this arrangement, an axis of rotation of the movement in the body of the patient instead of outside, whereby a Movement of the leg for the operation can be ge leads easily; this is in contrast to the prior art, where the fulcrum of movement is outside the patient's body, which requires constant readjustment during movement.
  • the rail is longitudinally adjustable in the direction of the axis of rotation and adjustable in height relative to the ground.
  • the leg guide 57 includes a chassis 55 with a support for a bushing 45 for receiving a displaceable in the sleeve piston-like element 41, which carries at its free end the rail.
  • the direction of displacement of the piston-like element 41 is substantially parallel to the axis of rotation 71.
  • the direction of displacement of the piston-like element 41 is aligned with the axis of rotation 71.
  • the leg guide comprises a displacement device 43, 47, 49, which is designed for a defined displacement of the piston-like element 41 and thus also the rail 31 in the direction of the axis of rotation 71.
  • the piston-like element 41 may be mounted on rolling elements 73 against at least one inside of the bushing.
  • rolling elements suitably supported balls are used.
  • Rollers which run on roller rails mounted inside the bushing 45 are also preferably used.
  • the piston-like element 41 is locked in the bush 45.
  • the displacement device 43, 47, 49 is used for this purpose.
  • the displacement device 43, 47, 49 is actuated by turning a spindle 47, which spindle is parallel to the rotation axis 71 or in alignment with the rotation axis.
  • Axis is arranged and is freely rotatably mounted in the open side of the opposite side of the sleeve and is mounted in the piston-like element 41 so that rotation of the spindle causes a displacement of the piston-like element parallel to the axis of rotation or along the Dreh ⁇ axis.
  • the spindle is preferably rotated by means of a handwheel or lever.
  • the spindle is freely rotatably supported in a Achsbuchse 47 of the bushing 45 and the end of the spindle in a threaded portion 43 of the piston-like element 41 was added.
  • the spindle drive is mounted in a different height from the height of the axis of rotation.
  • a rotatably mounted about the axis of rotation, the rail bearing, head member 37 is mounted. Further preferably, the head element can be locked by a screw device or plug device 39.
  • the rail 31 is attached to the head element 37 of the piston-like element.
  • the rail 31 is attached to the head member 37 of the piston-like member 41 by means of support members 33, 35.
  • support members 33, 35 Preferably, two struts 33, 35 are used as support elements.
  • the rail is mounted on a disc-like spacer directly on the head element.
  • the head member 37 is lockable with respect to rotation about the rotation axis 71.
  • the piston-like element 46 is fixedly connected to the rail 31c, for example as a continuous one
  • the piston-like element 46 is displaceable and rotatably supported essentially freely in the receiving bushing 45c and is provided with an external thread.
  • An actuation Element 48 is provided with a matching to the external thread of the piston-like element internal thread and operable with a handle device 50.
  • the actuating element is mounted on one end of the piston-like element 46, which is arranged opposite the end carrying the rail 31c, the bushing 45c carrying the piston-like element being arranged in the middle.
  • a rotation of the actuating element 48 causes a displacement of the piston-like element 46 with respect to the receiving bush 45c.
  • the mode of operation here is the same as in the case of mutually engaged screw and threaded nut: When the screw is rotated, its relative position to the threaded nut changes in an axial direction. To make the structure as simple as possible, is dispensed with an abutment point here.
  • a Schmidt ⁇ bearing point is not even erfoderlich here, because the required reaction force to prevent the fastener together with piston-like element can move freely back and forth, by the leg of the patient, be ⁇ or by the train led by the leg train ⁇ voltage is applied.
  • the force applied by the leg of the patient is sufficiently large to provide a sufficiently firm hold.
  • the piston-like member 46 is lockable in the female socket 45c.
  • the female socket 45c has a plurality of holes 42 along a circumference taken perpendicular to the direction of displacement.
  • the piston-like member 46 is lockable in the female sleeve 45c against rotation about the axis 71c so as to have a longitudinal groove extending over substantially its entire length into which a pin or screw is inserted or threaded over one of the bores 42 ,
  • On the column 55c is the socket 45c in the alternative Implementation appropriate.
  • This bushing has a smooth, unthreaded inner diameter such that the externally threaded piston-like member 46 is free to rotate and translate within the bushing.
  • the displacement is achieved by the actuating element 48, which is provided with a matching to the external thread of the piston-like element internal thread and with a handle device 50 is actuated.
  • the operation is the same as in the threaded nut-screw connection, in which a rotation of the screw causes a movement relative to the threaded nut in the axial direction.
  • Actuation of the fastener by turning it clockwise from the side opposite the patient causes the piston-like member to be moved away from the patient, thereby building up tension in the leg.
  • the rail 31 c is rotatable about the axis 71 c, wherein a lock by the combination of the present in the piston-like element 46 groove with the screw or the pin 44 is achieved with the through holes 42.
  • the through holes 42 are arranged at appropriate intervals, thus enabling the locking of the rail against rotation in a plurality of positions.
  • Figure 5 shows this engagement in a side view: the fact that the pin or screw passes through the socket 45d up to a groove depth 4Od in the piston-like element 46d, unintentional rotation of the piston-like element 46d and thus unintentional rotation of the Rail 31d prevented.
  • FIG. 6 shows this again in a front view: the piston-like element 46e has a groove with a groove depth 4Oe; the possible positions of the piston-like element and thus of the rail (not shown here) are defined by the arrangement of the through-holes 42e.
  • the rail 31 includes at a height h, which corresponds substantially to the height of the axis of rotation 71, a first nik ⁇ arcuate area with a first radius of curvature r and in a height deviating from the height h a second circular area with a second radius of curvature r 'contains where r> r '.
  • the areas of different radii of curvature are continuously merged so that the movement of the slider along the rail is smooth and without abrupt changes.
  • the slider is designed so that it runs smoothly along the guide rail.
  • it is formed with rolling elements, such as balls.
  • sliding within a rail guide is preferably carried out.
  • the rail is preferably designed in a U-profile, within which the slider slides along the guide rail.
  • the slider can be locked on the rail 31.
  • a kind of gear may be mounted on the slider or rail; turning a lever with a wheel shifts the slider up or down on the rail.
  • the leg guide according to the invention may be provided with lockable rollers 53, so that it is displaceable on a floor.
  • the rollers attached to the base plate 51 of the chassis 55 in one embodiment are replaceable by ground-engaging elements such as screws or the like, to provide high weight leg guidance in a particular embodiment holders.
  • the leg guide 57 of the present invention includes a foot fastening device 9, wherein the foot fastening device includes: a sole plate for laying a sole of a foot 7, at least one fastening device attached to the sole plate, with which the foot firmly engages the sole plate is brought, as well as a hollow spar 11 (or at least 1 spar), which is mounted perpendicular to the sole plate.
  • the sole plate is provided with straps, so that the foot 7 of the patient P is firmly attached to the sole plate and thus to the leg guide 57 after attachment, as with sandals.
  • the foot-fastening device 7, 9 is formed like a shoe.
  • the hollow spar 11 (or spar) is mounted on the opposite side of the heel of the foot. In this way it is ensured that the pivoting of the leg holder 75 leads to a pivoting of the leg 5, wherein both pivot axes are aligned with each other.
  • the leg holder 75 is longitudinally adjustable and the two ends thereof are pivotable relative to each other in the longitudinal axis. Furthermore, the leg support 75 includes: a slider 29; 29a; 29b at a first end of the Bein ⁇ bracket, a foot-fastening device 9 at the other end of the leg support and a device mounted therebetween for pivoting against each other and adjusting a distance between the slider and the foot-fastening device.
  • a sliding element 29a in a rail 31a is shown in FIG. 2:
  • the cross section of the rail has a U-shape with inwardly bent ends, so that the slider can not fall out.
  • the slider on mounted balls so that sliding is facilitated.
  • the two ends of the leg bracket 75 are pivotable relative to each other by at least 90 °.
  • the leg support 75 includes: a slider 29; 29a; 29b, to which a shaft 27 is attached, which is connected via a hinge 17 with an inner spar 13, and a the inner spar displaceable and lockable receiving hollow spar 11 which is attached to the foot-fastening device 9.
  • the sliding piece 29 carrying the leg support 75 is received by the rail and displaceable and lockable along the same.
  • the foot mounting device 9 is attached at the opposite end of the slider 29 leg support 75. The axes of the joint 17 can be locked together.
  • a hollow handle and inner spar for setting a well-defined distance between the rail and leg bracket can also be used at least 2 spars, which can be moved parallel to each other via a transition piece or in another variant, the leg bracket can be displaced directly on a (or more senior) spar ,
  • the joint 17 includes a ball joint or 2 against each other rotatable discs or a universal joint.
  • the axes of the universal joint 17 by two mutually perpendicular, lockable by levers 19f, bolts or screws are formed.
  • Figure 7 shows a detail of the embodiment formed with a universal joint 17f.
  • the two axes of the universal joint l ⁇ f and 18f so at the protruding ends with threaded nuts in engagement that with the aid of two levers 19f the universal joint for both Schwenk ⁇ directions is firmly locked.
  • the hinge 17g is formed by a head 18 seated on the shaft 27g, formed so as to rotatably support a disc-shaped end of the inner spar 13g, so that the inner spar 13g is rotatable relative to the shaft 27g on the common axis 72, as illustrated in FIG.
  • the dimensions of the leg guide result from the anatomical conditions of humans, the fixed dimensions being independent of individual characteristics; Rather, a standard patient is assumed for the fixed dimensions - the individual adaptation is achieved in each case by actuation of the described joints and rails.
  • For the height h of the axis of rotation 71 from the bottom is: 85 cm ⁇ h ⁇ 130 cm, wherein preferably applies: 95 cm ⁇ h ⁇ 120 cm.
  • the following applies for the first radius of curvature: 90 cm ⁇ r ⁇ 260 cm, whereby the following preferably applies: 100 cm ⁇ r ⁇ 190 cm, more preferably 120 cm ⁇ r ⁇ 160 cm, more preferably r 130 cm.
  • the leg support 75 bearing slider 29a is provided with rolling elements.
  • the rolling elements can be designed as balls surrounded by ring springs in grooves of the slider balls to facilitate sliding.
  • An example of this is shown in FIG. 9:
  • the slider 29h accommodated in the rail 31h has balls 141 on the inner friction surfaces with the slide rail, which are each in a bushing of elastic material 143 are received, which is fitted in each case in a AufEnglishung 145 of the slider.
  • the leg support is displaceably mounted on the rail in a second rail arranged perpendicular thereto.
  • the leg holder 75 bearing slider 29b is designed in such a way that it carries a further guide rail 77, which is arranged at an angle of 90 ° to the first guide rail and which slidably receives the sleeve 45 zuge ⁇ facing end of the shaft 27.
  • FIG. 3 illustrates this arrangement.
  • the rail 31b receives the slider 29b so as to be slidable in the directions 23b and 25b.
  • the slider 29b includes a second guide rail 77 arranged at an angle of 90 ° to the rail 31b.
  • a support piece 79 is slidably received, to which the end of the leg holder 75 facing the bushing 45 is fastened. In this way, in addition to the sliding on the rail 31 predetermined movement by 90 ° rotated movement is possible. This can be advantageous for a fine adjustment of the leg position and position.
  • the shaft 27h has a thread on the shaft surface in a region on the end facing the rail part 31h.
  • a fixing member 91 rotatably mounted with a corresponding mating internal thread, which is operatively engaged with the thread of the shaft.
  • the fastening part 91 has handle devices 93 and projections 95.
  • the slider 29h accommodated in the rail 31h can be locked in that the fastening part 91 on the thread of the shaft 27h is rotated in the direction of the rail 31h until the shaft firmly locks with the rail due to static friction of the projections 95 against the rail Rail 31h is. This is illustrated in FIG.
  • the shank 27h on the end of the leg support closest to the rail 31h, the shank 27h has a thread on the outer surface in a suitable area, so that the fastening part can be rotated on the screw like a threaded nut. If the fastening part is rotated clockwise, it gradually approaches the slide rail until the protrusions 95 no longer permit further rotation due to the static friction. Thus, the movement of sliding of the sliding element is then prevented.
  • the attachment part 91i has four or six handle devices 93i. This is illustrated in FIG. 10 in a side view and a front view, wherein only one embodiment with four handle devices is shown here. The handle devices are for ease of use of the attachment part.
  • the fastening part is locked on the rail by a kind of clamping jaw, which is pressed by springs against the rail.
  • an orthopedic table assembly 57, 59 is provided for hip surgery, comprising an operating table 59 with means 61 for horizontal sacral fixation of a patient P on one end of the table and a leg guide 57, wherein by means of the leg support 75, the distance of the leg 5 of the guide rail 31 is adjustable.
  • the operating table 59 of the orthopedic table arrangement is arranged immovably to the leg guide 57.
  • the leg guide is immovable to the operating table due to its own weight or due to a screw connection to the floor.
  • the latching device 161 is fixedly connected at one end to the leg guide and has at the other end a clamp 163 which firmly fixes a column of the operating table by means of a stirrup 165.
  • the operating table 59 of the orthopedic table arrangement has a height h 'from the bottom, for which applies: 80 cm ⁇ h' ⁇ 130 cm, wherein preferably: 90 cm ⁇ h 1 ⁇ 120 cm, more preferably that the height h the axis of rotation is substantially equal to the height h ' 1 of the hip joint 1, 3.
  • the embodiments of the invention allow a comparison with the prior art simplified execution of a hip operation.
  • a movement of body parts of the patient erfoderlich lowering the leg, swinging the foot and adduction of the leg
  • a movement of body parts of the patient erfoderlich lowering the leg, swinging the foot and adduction of the leg
  • a movement of body parts of the patient erfoderlich lowering the leg, swinging the foot and adduction of the leg
  • only each simple sliding or pivoting movements are required so that a considerable Ver ⁇ simplification of the handle and thus a quick operation even with less practiced operating personnel is possible.
  • the movement of the three steps is carried out automatically by a Steue ⁇ tion, which includes: actuators with angle sensors, sensor for detecting a tensile stress in the foot-fastening device, Program memory for the control of the Moto ren with reference to the recorded measured values, ⁇ memory for the specification of a time and angle-dependent desired curve for the tensile stress.
  • a control device for hip surgery comprising an operating table 59 and a leg guide 57, further comprising at least one sensor for detecting a tension on the leg of the patient as well as suitably mounted and suitably coupled to the sensor actuators for the automatic movement of the leg in an operating position.
  • the hip operation control device includes: at least two servomotors 111, 113 on the multi-axis hinge 17 for pivoting the foot 7, a servomotor 115 on the slider 29 for sliding the leg support 75 along the rail, and a servomotor 117 on the head element 37 for a rotation of the rail 31, at least one tension sensor 119 at least at the foot mounting device, a program memory 123, a data memory 125 for storing desired values for a time course of a tensile stress and ge measured values, a device for receiving an external storage medium 127th or a network connection 129, as well as a controller 121, which compares measured values of tensile stresses with the desired values on the basis of instructions stored in the program memory 123 and carries out a corresponding activation of the actuators 111, 113, 115, 117.

Abstract

L'invention concerne un dispositif de guidage de jambe (57) destiné notamment à des opérations de la hanche et comprenant un rail (31) qui contient une glissière en forme d'arc de cercle et qui peut tourner autour d'un axe de rotation (71) perpendiculaire à la glissière en forme d'arc de cercle. Le dispositif de guidage selon l'invention comprend également un dispositif de maintien (75) de la jambe qui est logé déplaçable sur le rail (31).
EP05803333.3A 2004-11-10 2005-11-09 Dispositif pour guider la jambe pendant une operation de la hanche, notamment lors de l'implantation d'une endoprothese Not-in-force EP1824437B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05803333T PL1824437T3 (pl) 2004-11-10 2005-11-09 Urządzenie do prowadzenia nogi podczas operacji biodra, zwłaszcza przy wszczepianiu endoprotezy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004054332A DE102004054332A1 (de) 2004-11-10 2004-11-10 Beinführung, insbesondere für die Verwendung bei einer Hüftoperation
PCT/EP2005/055836 WO2006051077A1 (fr) 2004-11-10 2005-11-09 Dispositif pour guider la jambe pendant une operation de la hanche, notamment lors de l'implantation d'une endoprothese

Publications (2)

Publication Number Publication Date
EP1824437A1 true EP1824437A1 (fr) 2007-08-29
EP1824437B1 EP1824437B1 (fr) 2013-07-03

Family

ID=35871046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05803333.3A Not-in-force EP1824437B1 (fr) 2004-11-10 2005-11-09 Dispositif pour guider la jambe pendant une operation de la hanche, notamment lors de l'implantation d'une endoprothese

Country Status (9)

Country Link
US (1) US7762975B2 (fr)
EP (1) EP1824437B1 (fr)
AU (1) AU2005303825B2 (fr)
CA (1) CA2587824C (fr)
DE (1) DE102004054332A1 (fr)
DK (1) DK1824437T3 (fr)
ES (1) ES2429535T3 (fr)
PL (1) PL1824437T3 (fr)
WO (1) WO2006051077A1 (fr)

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JP5267943B2 (ja) * 2009-03-30 2013-08-21 日本電気株式会社 ＰＣＩ−Ｅｘｐｒｅｓｓ通信システム、及びＰＣＩ−Ｅｘｐｒｅｓｓ通信方法
EP2498732B1 (fr) * 2009-11-12 2017-12-06 Tony Rocklin Dispositif et procédés de traction de hanche
US9814648B2 (en) 2009-11-12 2017-11-14 Tony Rocklin Hip traction device, system, and methods
US8986228B2 (en) * 2011-09-19 2015-03-24 Trimanus Medical, Inc. Method and apparatus for monitoring surgical traction
US10206842B2 (en) 2012-01-26 2019-02-19 American Sterilizer Company Medical table with leg support
US9498397B2 (en) 2012-04-16 2016-11-22 Allen Medical Systems, Inc. Dual column surgical support system
EP3089673A4 (fr) * 2014-01-03 2018-01-10 Innovative Orthopedic Technologies, IOT, AG Dispositifs et méthodes pour le guidage et l'application d'une force de traction à la jambe d'un patient pendant une opération chirurgicale
WO2016197142A1 (fr) 2015-06-05 2016-12-08 The Regents Of The University Of Colorado, A Body Corporate Table chirurgicale et accessoires pour faciliter une arthroscopie de hanche
CN105478533A (zh) * 2016-01-28 2016-04-13 宁波信泰机械有限公司 一种汽车后门上饰条矫形机构
CA3052654A1 (fr) 2017-02-06 2018-08-09 Stryker Corp. Procede et appareil permettant de supporter et de stabiliser un patient pendant une hyper-extension de la hanche
AU2018214673A1 (en) 2017-02-06 2019-08-29 Stryker Corp. Anatomical gripping system for gripping the leg and foot of a patient when effecting hip distraction and/or when effecting leg positioning
CA3052793A1 (fr) 2017-02-06 2018-08-09 Stryker Corp. Cadre de distraction pour effectuer une distraction de la hanche
USD878836S1 (en) 2017-08-17 2020-03-24 Stryker Corp. Table extender
CN108195573B (zh) * 2017-12-25 2024-04-16 珠海安维特工程检测有限公司 一种拉力试验装置及方法
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Also Published As

Publication number Publication date
AU2005303825A1 (en) 2006-05-18
CA2587824C (fr) 2012-04-17
ES2429535T3 (es) 2013-11-15
EP1824437B1 (fr) 2013-07-03
DE102004054332A1 (de) 2006-05-11
PL1824437T3 (pl) 2013-12-31
US20080214976A1 (en) 2008-09-04
CA2587824A1 (fr) 2006-05-18
US7762975B2 (en) 2010-07-27
AU2005303825B2 (en) 2011-10-20
DK1824437T3 (da) 2013-10-07
WO2006051077A1 (fr) 2006-05-18

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