DE1196815B - Operating table with fixed lower part and transportable bed - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

int. Ui .:

Number:
File number:
Registration date:
Display day:

AOAg

German class: 3Oe -14

St21874IXd / 30e March 21, 1964 15. JuU 1965

The invention relates to the further development of an operating table with a stationary lower part and a transportable one Lying surface with the aim of operation without physical strength, absolute safety when Implementation of the lying area and the expansion of fractional properties.

It is already known to design operating tables with a stationary lower part and a transportable bed surface. However, there are still significant deficiencies that impair universal use.

Modern surgery requires a reclining surface that is divided in many ways, which creates tension and emphasizes the surgical field during the course of the operation and allows relaxation for wound closure. Modern anesthesia serves z. B. raising or lowering the lower extremities for the purpose of circulatory regulation, it calls for the possibility of intraoperative weight control and the like.

All these processes should be remote-controlled and as far as possible without hindering the operation without any effort on the part of the operator and eliminate errors due to human error.

Some of these requirements are met on some known operating tables of conventional design. The combination of the same with a lying surface that can be lifted off and transported from the stationary lower part has so far not led to satisfactory results. You either have to use one multiple subdivided lying surface or their motorized actuation or others important properties such as B. disclosed the possibility of intraoperative fluoroscopy.

In the operating table according to the invention, the motorized actuation of individual lying surface parts compared to known designs, the intraoperative X-ray, fluoroscopic and recording options are improved and operation is made safe, namely by: that apart from the total lying surface, individual lying surface parts are also adjustable by motor and that the servomotors housed in the stationary lower part or the motor-driven gear reduction gears when the transportable lying surface is placed on the lower part automatically with the adjusting means of the Lying surface can be coupled.

An embodiment of the invention is explained in more detail with reference to FIGS. 1 to 11. It shows

F i g. 1 the lying surface raised from the lower part in view with individual, delimited by break lines Sectional views,

Operating table with fixed lower part and transportable bed surface

Applicant:

Stierten-Werke Aktiengesellschaft, Rastatt (Bad.)

Named as inventor:
Erwin Pilz, Rastatt (Bad.)

F i g. 2 the lower part in a view with a schematic gearbox indication in dashed lines,

3 shows the longitudinal sectional view of the transport trolley,

4 shows a detail of the lying surface coupling in section along the plane IH-IIL

F i g. 5 shows a cross section along the plane II-II to,

F i g. 6 is a side view from the right to FIG. 1 in section along plane I-I,

Fi g. 7 is a side view from the right of FIG. 2, Fig. 8 a side view from the right to Fig. 3, ' cut to level IV-IV,

F i g. 9 is a schematic representation of the locking device in the stage of full coverage of the lying surface by the transport trolley, FIG. 10 shows a representation like FIG. 9, but in the Stage of lifting the bed surface from the transport trolley,

11 shows a representation like FIGS. 9 and 10, but in the stage of full coverage of the lying surface by the stationary operating table lower part. From the base plate 1 (Fig. 2 and 7) rotatable about the vertical axis and lockable by means of the lever 2 in any rotational position, the telescopically extendable table column 3 is carried by means of a preferably motorized height adjustment device, not shown. In the head part 4, a central body 5 is rotatably mounted about the longitudinal axis A and carries the swivel heads 6 rotatable about the transverse axis B on both sides. The pivoting movements of the central body 5 for the so-called edge bearing and of the swivel heads 6 for the so-called Trendelenburg inclination are preferably carried out by a motor by means of devices which are not shown and are known per se. In addition to the servomotors already mentioned, the table column 3 has a motor 7 for the motorized adjustment devices on the lying surface.

509 600/5

brings, which drives 8 helical gears 9 in the swivel heads 6 via gears. The circuit of the servomotors happens via a push button switch register 10, which by means of a, preferably with low power fed multi-core cable 11 is connected to the motors or the motor contactors. the The length of the cable introduced on the rotatable lower part is at least dimensioned so that the switching register at any point on the lower part

Letting go of the push button the positioning movement is stopped and because of the safety switch unauthorized and unintentional switching on can be prevented.

The power connection provided by the motor drive in the lower part of the operating table is permitted the arrangement of high and low power connections for surgical instruments and also

For the motorized adjustment of the lying surface parts, a coupling element, shown in the example as a helical gear 17 5, is mounted in the vertical legs 13 b of the angle lever pair 13, which are designed as plug-in pegs the swivel heads 6 comes into engagement.

Via an angular gear 18 (e.g. bevel gear,

can be attached to the lying surface. io helical gear or worm gear) is assigned to each motor two pushbutton buttons lying surface servomotor 7 outgoing actuating movement (the second for the countermovement), which keep the self-locking worm gear 19 and the motor in operation only as long as it is transmitted to 20, which via a suitable coupling 21 is pressed the button. Besides these push-buttons, they can either be engaged or disengaged. There are two more (/ and O) switches, which are used as back plates 15 or leg plates 16 switches and are built into the switch register and are used as safety 15 lying surface parts with a meaning which is motorized via a servomotor switchable servomotor adjust. In the case of the main contactor connected upstream of the main contactor with longitudinal protection, all the divided leg plates are also de-energized or the left or right motor contactors can be made ready for operation. With this switching method, a high 20 21 can move out independently of each other, is achieved in degrees of safety, because simply by using either the right or left clutch

brings into engagement in the angle lever pair 13 on the leg plate side. In the same way, instead of the leg plates, leg shells for gynecological 25 operations or extension bars for bone treatment can be moved.

According to the example shown, a clutch lever 22 moves the clutch 21 by means of a preferably from the end of the back plate, the supply of measuring current cables for the anesthetic coupling device, which comes from the hand lever she. An example of such a socket arrangement, 23, the transmission lever 24, the transmission die can also be made explosion-proof by means of 25 and the outer clutch lever 26, is denoted by 12 and is in dash-dotted lines. The transmission means 25 could be in single aeh lines shown. ster version will be a coupling rod

The lying surface (Fig. 1 and 6) is supported by a 35 but preferably with regard to the counter-angle lever pair 13, the horizontal other adjustable lying surface parts of a multiple leg 13a, the joints for the lying surface divided around the axes C flexible (e.g. as a flexball or and D carry swiveling lying surface parts and flexible push-pull actuation). whose vertical legs 13 b are designed as a plug-in pin for universal use of the operation, the back plates 15 are fitted against the leg swivel heads 6 of the lower part in corresponding bores of the 40 tables. The length plates 16 interchangeable. This feasibility is in the horizontal angle lever leg 13 a ent- F i g. 1 by the plug-in pin 27 with the locking corresponds approximately to the distance between the axes C screws 28, for example, indicated. It is light and D and is therefore roughly the same as the length of the seat. to see that the length of the vertical angle lever leg 13 b 45 likelihood of this lying surface parts by converting is dimensioned so that it changes nothing except the good connection and that only appropriate precautions have to be taken for the coupling remaining at the back plate end. For this purpose, the coupling lever 22 or 26 is arranged in the symmetry plane II between the axes C and D of the lying surface joints and the transmission means 25 on the outer coupling lever 26 is easily detachable.

According to FIG. 4 and S, the bearing 27 of the straight tables can be used with a simple reclining guide 28 of the transmission means 25 that is open at the top. It is readily pre-pressed torsion spring 29 and easily adjustable by hand that in the same way a cover 30 that can be pivoted back even further is closed. The subdivided lying surface, the subdivisions of which are all wheel guide 28, which are adjusted by the pin 30 a against axial things usually by hand, is secured during displacement, can then easily be rend the motorized adjustment to the joints from the storage 27, especially since the outer clutch lever 26 is also limited to the axes C and D , is also open at the top. can. So z. B. the seat plate 14 in two parts After converting the back plate will be the back plate 15 in upper and lower sub-straight guides 28 of the preferably flexible divided over and supplemented by a head plate, the 65 exercise means 25 on both sides in the leg plate not shown by longitudinal - and transverse division into left th, after the plane of symmetry II the first bearings and right or upper and lower leg plates opposite second bearings of the same value. education inserted and fixed in the same way.

with the swivel heads 6 the horizontal angle lever arm a sufficient freedom of inclination giving distance from the angle lever pivot axis B ensures.

In the illustrated embodiment, the lying surface is divided into three parts in the longitudinal direction and consists from the seat plate 14, the back plate 15 and the leg plate 16. These, although also for the practical

The trolley shown in Fig. 3 and 8 has to fulfill several tasks: With the fork-shaped arranged guide rails 31, which are attached to the guide strips 32 (FIG. 7) of the operating table lower part attack and hit, the trolley is centered and held when moving the lying surface. The support columns 33 on which the receiving devices are carried are carried by the guide rails 31 34 for the lying surface to rest firmly or adjustable in height. The execution of two adjacent There is free space in the middle for the use of X-ray equipment during the preliminary examination of the patient outside the operating room is an advantage.

The height adjustability desired for the adjustment to bed heights, ambulance heights and the like the lying surface on the trolley can be equipped with known facilities such. B. hydraulic or be done mechanically. According to the drawing, the hand crank 35 is via a gear 36 moves a threaded spindle 37, which is firmly connected to the receiving device 34 by the Nut 38 causes a raising or lowering. A transmission cross-connection, not shown ensures that the adjustment takes place at the same time on both support columns 33.

The carriage chassis formed from the guide rails 31, the cross member 39 and the longitudinal arm 40 rests on two strong wheels 41, on a swivel castor 42 and has a foldable drawbar 43 provided.

The requirement of the adjustability of the reclining surface parts moved by motor on the lower part also on the trolley is met by the gear shaft 45 provided with a hand crank 44, which can be swiveled against the insertion pin 13 b after moving away from the operating table lower part, the helical gears 46 in the helical gears 17 in Engage the insert pin. This means that all of the described adjustments to the back and leg plates are also possible on the trolley.

In severe operations associated with high blood loss, e.g. B. in heart surgery is a weight control indispensable for the patient, but so far before and after the operation by repositioning of the patient on scales was very difficult, but was impossible during the procedure. In addition the invention is therefore proposed to equip the trolley with a weighing device, which does not cause any difficulties. This means that even during the operation without repositioning, but only with a brief acquisition of the lying surface by the receiving device 34 Weight control on the transport trolley is possible without noticeable disruption of the surgical procedure.

It goes without saying that a lying surface that can be lifted off the lower part of the operating table must be absolutely reliably connected to it as well as to the trolley after it has been moved, and that this safety must also be ensured for the move itself. An essential part of the invention is therefore dedicated to these safety precautions:

A bolt 47 on both angle levers 13 of the bed surface falls after joining with the Lower part in a bolt 48 on the two swivel heads 6 automatically by its weight or supported by spring force. The tightening curve on the bolt 47 is designed to be self-locking, so that the latch cannot release by itself and it is impossible to lift the bed surface without first unlocking it is .. At the same time, a vibration-proof connection is achieved with the bolt 47.

Recorded after being transferred to the trolley the same bolt secures the bolt 49 on the trolley and also here in the described Way. However, the mounting is done here by the pin 50, which is located in bores 51 on the angle lever pair 13 insert.

When repositioning, the latches remain in the respective locking position until the lying surface is fully covered by the receiving part by pins and holes.

The process is shown in FIGS. 9 to 11. In the stage according to FIG. 9 the pin 50 of the trolley rests still in the bore 51 of the lying surface, and the bolt 47 is anchored with the bolt 49. the The lying surface is already ready to be set down above the mounting of the lower part of the operating table. In Fig. 10, the pin 13 & is already fully captured by the bore of the swivel head 6, during the Pin 50 of the receiving device on the carriage is still in the bore 51 of the angle lever 13 plugged. Only the bolt 47 is already disengaged, which is accomplished by the pawl 52 became. The back curve of the pawl 52 came when the lower part of the operating table was raised with the Bolt 53 on the swivel head 6 in contact and was inevitably pivoted to the bolt 47 when driving further, she brought it from the locked position to the unlocked one. At the same time will prevents the bolt 47 from falling into one of the two bolts 48 and 49 as long as they are opposite one another. The lying surface is in the stage of FIG. 11 already lifted from the carriage, the pawl 52 is released and the bolt 47 in the bolt 48 invaded. This creates a firm connection to the lower part of the operating table. When submitting the process is repeated on the car in reverse, with the figures only in the order 11-10-9 are to be considered.

Claims (20)

Patent claims: 1. Operating table with stationary lower part and easily lifted, multi-divided lying surface that can be moved by means of a special transport trolley, characterized in that, in addition to the total lying surface, individual lying surface parts are also included are adjustable by motor and that the servomotors housed in the stationary lower part or the motor-driven gear reduction when the transportable one is put on The lying surface can be automatically coupled to the lower part with the adjusting means of the lying surface. 2. Operating table according to claim 1, characterized in that manually on the trolley Devices to be operated for the adjustment of the otherwise motorized lying surface parts are provided that after the lying surface has been placed on the trolley with the Adjusting means of the lying surface parts can be brought into engagement. 3. Operating table according to claim 1 or 2, characterized in that the lying surface holder (34) on the trolley to a minimum at least two supports (33) rests, which are set up to be adjustable in height by means known per se are. 4. Operating table according to one of claims 1 to 3, characterized in that the transport trolley or whose mattress support is equipped with a weighing device. 5. Operating table according to one of claims 1 to 4, characterized by a lying surface approximately in the longitudinal center laterally supporting angle lever pair (13) which is carried by swivel heads (6) which can be pivoted about a transverse axis (B) on either side of a longitudinal axis (A) pivotable central body (S) are arranged. 6. Operating table according to claim 5, characterized in that in the horizontal basic position of the lying surface, one leg of the angle lever is vertical and the other is approximately horizontal runs und'daß the horizontal leg (13 a) from the vertical (136) in one of the lying surface Sufficient inclination clearance is maintained from the angle lever pivot axis and at its ends has joints for adjustable lying surface parts, which are in one of the usual Seat length corresponding distance from each other are arranged. 7. Operating table according to claim 6, characterized in that the vertical leg (13 ft) of the angle lever pair at its lower end as a plug-in pin for connecting between Lying surface and lower part is formed and that the horizontal leg (13 έ) means for receiving the lying surface on the transport trolley. 8. Operating table according to one of claims 1 to 7, characterized by an automatic Locking device that is used when moving the bed surface from the transport trolley to the Fixed lower part or, conversely, the lying surface on the releasing part is unlocked and then locked on the female part. 9. Operating table according to claim 8, characterized by one on the lifting surface attached bolt (47), which by its weight or by spring force in a locking bolt (48, 49) falls on the stationary lower part or on the trolley and is controlled by a pawl (52) on the trolley prevents the bolt (47) from collapsing by means of a second bolt (53) on the stationary lower part, as long as the locking bolts (48, 49) are on the stationary lower part or on the trolley face. 10. Operating table according to one of the claims 1 to 9, characterized in that when placing the lying surface on the lower part for the adjustment of the lying surface parts Helical gears (17) meshed with counter gears (9) driven by the servomotor (7) in the lower part come. 11. Operating table according to one of claims 1 to 10, characterized in that the adjustable hinged at the ends of the horizontal leg on the angle lever pair (13) Lying surface parts (15, 16) by means of a common one accommodated in the lower part of the operating table Servomotor (7) can be moved and optionally coupled. 12. Operating table according to claim 11, characterized in that the optional adjustment of the lying surface parts by means of a manually operated coupling device from the as Back plate serving lying surface part and preferably coupled from its end will. 13. Operating table according to claim 12, characterized by a flexible actuating element (25) for remote control of the preferably in the middle between the joints the coupling lever (26) attached to the horizontal angle lever arm. 14. Operating table according to claim 12 or 13, characterized by devices for quick detachability of the remote control from the clutch lever and by the per se known interchangeability of the back plates (15) for the leg plates (16). 15. Operating table according to one of claims 11 to 14, characterized in that the leg plates are divided in a manner known per se along the longitudinal axis of the lying surface and by Coupling and coupling can be adjusted independently of each other by means of a motor. 16. Operating table according to one of claims 1 to 15, characterized in that the lower part can be rotated around the vertical axis and can be locked in any rotational position. 17. Operating table according to claim 16, characterized in that the control cable (11) for the switching of the servomotors led out on the rotatable lower part and dimensioned as long is that the switching register is attached to any point on the lying surface can be. 18. Operating table according to one of claims 1 to 17, characterized in that two push-button switches are assigned to each servomotor in the switching register (10). 19. Operating table according to claim 18, characterized by the additional arrangement of a pair of pushbuttons (O, I) in the switch register, by means of which all motor contactors can be switched off or made ready for operation via a main contactor. 20. Operating table according to one of claims 1 to 19, characterized in that Connections for high voltage, low voltage and measuring current are attached to the lower part. Considered publications:
German patent specification No. 1158 663. For this purpose 2 sheets of drawings 509 600/5 7.65 © Bundesdruckerei Berlin