DE10124490B4 - Device for attaching sterile operation aids - Google Patents

Abstract

Device for attaching sterile operating aids (27, 29, 300), wherein
a) the device has at least one in the non-sterile region of the operating table (1) attachable to this holding part (30) and at least one of the holding part (30) by a sterile cover (5) separately arranged sterilizable support member (25; which is connected to the operation aid (27, 29, 300);
b) the holding part (30) and the carrier part (25; 31) are interconnected via a magnetic coupling (301) comprising two separable magnetic or magnetizable coupling parts (24, 26; 30, 31) between which the sterile cover ( 5) is arranged;
c) the magnetic or magnetizable first coupling part (24, 30) associated with the holding part (30) can be arranged as a patient support under the sterile cover (5) on the operating table (1).

Description

The The invention relates to a device for fixing sterile Surgical aids.

at the implementation of operations is especially close to a sterile surgical field respect, think highly of. This is done with the stored in the correct position Patients first disinfected the skin of the part of the body to be operated several times. The remaining part of the patient and the operating table remain unsterile. Following will the patient then - with Exception of the body part to be operated on - covered with sterile surgical drapes. These towels serve as a sterile border, which does not interrupt or sever may be. The sterile cover covers the patient and the patient Operating table usually to the ground.

Special Difficulties in practice, the attachment of surgical aids at the operating table, because a corresponding, the surgical aid holding device partially in the non-sterile area of the operating table as well as partially in the sterile area and it as considered inadmissible is to provide the sterile border with bushings for the device.

In practice has led this that sterile Operation aids, such as retractors, manually from one of the the surgery doctors present must be kept. Sterile holding devices that adhere to the bone have also become known support the patient to be operated on.

From the DE 199 54 497 C1 is a device located in the sterile area for driving a non-sterile field located electrical device for medical Opera tions known. In this case, the device located in the sterile area comprises a magnetic field generating device which acts through a sterile cover on a sensor arranged in the non-sterile region, which in turn is connected to the electrical device.

From the not previously published document DE 199 50 440 A1 a device for attaching surgical aids is known, which comprises a non-sterile portion of the operating table attachable thereto holding part and at least one separately from the holding part by a sterile cover disposable sterilizable support member which is connected to a surgical aid. In this case, the holding part and the support member are interconnected via a magnetic coupling comprising two separable magnetic or magnetizable coupling parts, between which the sterile cover is arranged.

The in non-sterile area holding part preferably comprises a standing on the ground pillar or a clamping device to the detachable firmly fixed to a round the operating table mounting rail. Therefore, before starting the operation must first the holding part can be positioned in a relatively complex manner. The same applies to the operation aids, as a positioning of the operation aids by changing the Location of the carrier part is not provided with respect to the holding part. Rather, after the Positioning of the holding member first, the support member with respect to the holding part be fixed and only then will the respective operation assistance, e.g. by means of stand rods, positioned with respect to the support member. Especially if a holding part several carrier parts are assigned lead these positioning operations to relatively time-consuming operation preparations. There is also e.g. in knee surgery, where the surgical aid is the knee to fix, the danger that due then to be absorbed by the surgical aid body weight unwanted changes in position the surgical aid, e.g. by moving or pivoting the Tripod rods, occur.

Starting from the DE 199 50 440 A1 The invention has for its object to provide a device for attaching sterile surgical aids, in which the holding part in a simple manner to the operating table in the non-sterile region can be arranged and accurate and secure fixing the position of the surgical aid in the sterile field is possible.

These The object is achieved by the subject Characteristics of claim 1 solved. Further, particularly advantageous embodiments of the invention reveal the dependent claims.

The Invention is based essentially on the idea of the holding part and thus also the holding part associated with the first coupling part as a patient rest under the sterile cover on the operating table to arrange.

hereby On the one hand it is achieved that no complex preparation for the fixation of the holding part required are. Either becomes a relatively thin trained holding part Simply put on the operating table or it will be used as a plate in integrated the table.

Since the holding part has relatively large lateral dimensions with respect to the respective carrier part used, a large number of carrier parts can as a rule be assigned to the holding part. In this case, the holding part associated with the first coupling part of a metal plate made of a magnetizable material and the carrier part associated second coupling part consist of at least one permanent magnet whose lateral dimensions can be substantially smaller than those of the first coupling part. In this case, the holding force of the second coupling part can be so small that the corresponding unit can be picked up manually and repositioned repositioned. Furthermore, it is also possible to associate the support part with a plurality of support parts with corresponding second coupling parts consisting of permanent magnets.

at Use of only one carrier part can this in a simple way over moved to the holding part and thus the operation assistance are positioned. The holding part associated with the first coupling part is in this Fall at least in some areas by appropriate electromagnets or switchable permanent magnets magnetizable. After fixation of the support part by switching on the electromagnet or the permanent magnet th is then e.g. in leg surgery, the entire weight of the leg over the Operation aid and the patient rest forming the holding part taken up by the operating table.

Further Details and advantages of the invention will become apparent from the following Based on schematically illustrated figures explained embodiments. Show it:

1 a plan view of an arm table attachment of a surgical table for operation of the hand of a patient with a device according to the invention;

2 the perspective view of a fixing shell for the lower leg of a patient, which is formed by the sterile portion associated with the coupling part of the magnetic coupling of a device according to the invention;

3 and 4 two side views of a lying on an operating table patient whose facing the viewer leg of the in 2 shown fixing shell is supported once in the extended and once in the angled position.

In 1 is with 1 designated an operating table on which for the purpose of the operation of a hand 23 a patient 2 lies. The sterile surgical field is from the underlying non-sterile area through a surgical drape 5 covered.

At the with 24 designated holding part is a first coupling part of a magnetic coupling, which is formed by a magnetizable metal plate. This metal plate 24 can either on the operating table 1 under the surgical drape 5 placed or in the operating table 1 be firmly integrated. A holding part 24 above the surgical drape associated carrier part 25 includes socket-shaped second coupling parts 26 , This consists in this case of one with respect to the dimensions of the metal plate 24 relatively small permanent magnet, on which in turn eg retractors or even holders 27 for fixing the fingers 28 or holder 29 for fixing the hand 23 can be attached. The magnetic holding forces of the socket-shaped coupling parts can be so small that they can be easily picked up by hand and repositioned. As 1 it can be seen on the metal plate 24 also several carrier parts 25 are arranged, in particular as an ensemble a fixation aid for microsurgical procedures, eg in hand surgery represent.

For operations of the arms and legs, the in the 2 - 4 shown, with a pivotable Fixierschale 300 provided magnetic coupling 301 proved to be advantageous. In this case, the first coupling part forms 30 the magnetic coupling 301 a flat magnetic surface in the patient support surface of the operating table 1 integrated or on the operating table 1 is up. The magnetic force of the first coupling part 30 can be activated in whole or in part by an electromagnet, not shown.

At the above the surgical drape 5 located second coupling part 31 is the fixation cup 300 (Operation assistance) for in the 3 and 4 pivotally mounted illustrated foot to be supported. This second coupling part 31 consists of a magnetizable material. In non-magnetized state of the second coupling part 31 can therefore fixation 300 be freely positioned with the foot on the first coupling part. When the electromagnet is switched on, the foot is then fixed in the desired position ( 4 ).

The invention is of course not limited to the embodiments described above. So it can be, for example, in connection with the 2 - 4 described first coupling member instead of an electromagnet and a (switchable) permanent magnet act.

1

operating table

2

patient

5

Surgical drape, sterile cover

23

hand

24

Holding part, Metal plate, first coupling part

25

support part

26

second coupling part

27

Holder, operation Help

28

finger

29

Holder, operation Help

30

first Coupling part, holding part

31

second Coupling part, carrier part

300

Fixierschale, operation Help

301

magnetic coupling

Claims (6)

Device for attaching sterile operation aids ( 27 . 29 ; 300 ), wherein a) the device at least one in the non-sterile area of the operating table ( 1 ) on this attachable holding part ( 30 ) and at least one of the holding part ( 30 ) through a sterile cover ( 5 ) can be arranged separately sterilizable support member ( 25 ; 31 ), which with the surgical aid ( 27 . 29 ; 300 ) connected is; b) the holding part ( 30 ) and the carrier part ( 25 ; 31 ) via a magnetic coupling ( 301 ) are interconnected, the two separable magnetic or magnetizable coupling parts ( 24 . 26 ; 30 . 31 ), between which the sterile cover ( 5 ) is arranged; c) the holding part ( 30 ) associated magnetic or magnetizable first coupling part ( 24 ; 30 ) as a patient support under the sterile cover ( 5 ) on the operating table ( 1 ) can be arranged. Device according to claim 1, wherein the first coupling part ( 24 ; 30 ) of the magnetic coupling in the operating table ( 1 ) is integrable. Apparatus according to claim 1 or 2, wherein the holding part ( 24 ) several carrier parts ( 25 ) assigned. Apparatus according to claim 3, wherein the first coupling part ( 24 ; 30 ) a magnetizable metal plate and the support parts ( 25 ) associated second coupling parts ( 26 ) Are permanent magnets. Device according to claim 1 or 2, wherein the first coupling part ( 24 ) consists of a material which is magnetisable at least in subregions by at least one electromagnet located in the non-sterile area or a switchable permanent magnet located in the non-sterile area. Device according to claim 5, wherein the support part ( 31 ) a pivotable Fixierschale ( 300 ) for receiving an arm or a leg and wherein the support part ( 31 ) associated second Kupplangsteil consists of a magnetizable material.