DE102011056086A1 - Stand for use in arrangement for holding medical device such as microscope, has stand base, carrier pivotally connected with stand base around axis, and another carrier pivotally connected with former carrier - Google Patents

Abstract

The stand (10) has a stand base (6), a carrier (1) pivotally connected with the stand base around an axis (S1), and another carrier (2) pivotally connected with the former carrier around another axis (S2). A counter balance (W5) is movably arranged on the latter carrier for balancing the moment that is caused around the latter axis by the medical device and the latter carrier in an axial direction of the latter carrier.

Description

The invention relates to a stand for holding at least one medical device, which comprises a stand base for erecting the stand on the ground. Further, the tripod has a first carrier rotatably connected to the stand base about a first axis and a second carrier rotatably connected to the first carrier about a second axis, wherein the medical device can be fastened to the second carrier.

The tripod is used in particular for holding microscopes and, where appropriate, other accessories, for example lighting, during an operation. The two rotatably mounted supports ensure that the microscope can easily be brought to the optimum position for the operation without the need to move the stand itself. By moving the microscope and / or adding or removing other medical devices, the torque acting about the first and second axes changes, so that it is necessary to equalize this torque so that the microscope and the other medical devices remain in their position ,

From the document DE 100 42 272 A1 a tripod assembly is known in which the stand is connected to a boom, which is arranged rotatably about an axis. At one end of this boom, the microscope is attached and at the other end a lamp housing is movably arranged, over which the boom can be balanced. The problem with this tripod arrangement is that the microscope can only be adjusted in a limited area by providing only one support.

From the documents EP 1 915 965 A2 . US 5,528,417 A and US 6,050,530 A Tripods are known in which the microscope is connected via several vertical and a plurality of horizontal support with the stand base. Here, the horizontal and the vertical support are each connected via a plurality of pivot points and corresponding connecting elements, whereby two parallelograms are formed. In the area of the stand base, one or two counterweights are arranged, over which the moment generated by the microscope is compensated. The problem with these known devices is that they are very complex. Furthermore, the counterweights provide only a very limited adjustment, so that when a major change in the moment generated by the microscope and / or other medical devices, the counterweight must be replaced with another.

It is an object of the invention to provide a tripod for holding at least one medical device, by means of which the arrangement of the medical device in different positions is possible in a simple manner.

This object is achieved by a tripod having the features of claim 1. Advantageous developments of the invention are specified in the dependent claims.

According to the invention, a second counterweight for compensating the moment caused by the medical device and the second carrier about the second axis is movably arranged in the axial direction of the second carrier on the second carrier. By this second counterweight can thus be compensated for in a change of the moved by the medical device and the second carrier moment, so that the medical device remains in position and further easy adjustment is possible. Furthermore, according to the invention, a first counterweight is provided on the first carrier for balancing the moment caused by the medical device, the second counterweight, the first carrier and the second carrier about the first axis, said element being movably arranged in the axial direction of the first carrier. Thus, by axially moving the first counterweight, the tripod can also be balanced about the first axis so that the medical device remains in its position.

Overall, it is achieved by providing two counterweights directly to the two carriers that despite the good adjustability by providing two rotatable about two different axes support the tripod can be balanced in a simple manner and is particularly simple. In particular, it is not necessary to form elaborate parallelograms to balance the forces. Furthermore, the medical device can thus be easily moved to different positions, with only a minimum force being required by the two counterweights. Thus, a particularly simple handling of the Statives is possible.

In particular, a microscope and / or further medical devices can be arranged on the stand.

The first counterweight is fixed relative to the first axis, in particular on the first side of the first carrier and the second carrier on one of the first sides with respect to the first axis opposite the second side of the first carrier. Accordingly, preferably also the second counterweight relative to the second axis on a first side of the second carrier fixed, wherein the medical device on one of the first side of the second carrier relative to the second axis opposite the second side of the second carrier can be fastened. It is particularly advantageous if the first counterweight is arranged on a first end region of the carrier and the second carrier on a second end region of the first carrier opposite the first end region. Accordingly, it is advantageous if the second counterweight is arranged on a first end region of the second carrier and the medical device is arranged on a first end region opposite the second end region of the second carrier. As a result, the torque determined by the medical device can be balanced in a simple manner both around the first and the second axis, whereby a particularly simple handling of the statics is provided.

In particular, the first carrier has a first sliding mechanism, with the aid of which the first counterweight is fastened to the first carrier so as to be displaceable in the axial direction of the first carrier. Thus, the first counterweight can be moved easily in the axial direction, so that by the corresponding displacement of the first counterweight, which can be compensated by the first carrier, the second carrier, the second counterweight and the medical device about the first axis caused moment , Accordingly, it is advantageous if the second carrier has a second sliding mechanism, by means of which the second counterweight is slidably mounted on the second carrier in the axial direction of the second carrier. By means of this second sliding mechanism, the second counterweight is simply slidable in the axial direction so that it can be displaced so that the moment produced by the second counterweight compensates for the moment caused by the medical device and the corresponding part of the second carrier.

The first carrier has, in particular, an elongated hole running in the axial direction, on which the first counterweight is mounted in such a way that it can be moved in the axial direction of the oblong hole and selectively fixed at different points of the oblong hole with the aid of a locking mechanism. Further, the second carrier may also have a slot on which the second counterweight is mounted so that it is movable in the axial direction of this slot and fixed by means of a locking mechanism optionally at different points of this slot. The elongated holes are each in particular designed such that their axes coincide with the longitudinal axis of the respective carrier.

Additionally or alternatively, the first and / or the second carrier may also each have a rail extending in the axial direction, on which the corresponding counterweight is mounted such that it can be moved in the axial direction of the rail and with the aid of a locking mechanism optionally at different points of the rail is detectable. By providing a slot and / or a rail in each case a reliable attachment of the respective counterweight is achieved on the carrier while still allowing this counterweight is easily displaced in the axial direction of the respective carrier.

Furthermore, it is advantageous if the distance of the first counterweight to the first axis is less than the distance of the second axis to the first axis and / or the distance of the second counterweight to the second axis is less than the distance of the medical device to the second axis. In particular, the counterweights are dimensioned and secured to the respective carrier such that the corresponding distance to the respective axis, regardless of the position in which the counterweight is axially displaced, is in each case smaller than the distance to the second carrier or to the medical device. This ensures that the largest possible pivoting space is available through the respective carrier, so that the medical device can be moved in a large space.

The first and the second axis preferably run parallel to one another and in particular are directed horizontally.

The first carrier is in particular connected via a monovalent first joint with the base. Here, this first joint is designed such that its degree of freedom allows rotation about the first axis. Furthermore, the second carrier can also be connected to the first carrier via a monovalent second joint, in which case the corresponding degree of freedom of the second joint also makes it possible for the second carrier to be rotatable about the second axis. By providing two such monovalent joints is achieved in particular that the carriers are rotatable about the two axes in a simple manner, but all other degrees of freedom are suppressed and thus secure attachment of the first carrier to the base and the second carrier is carried on the first carrier.

The first carrier is in particular exclusively connected to the base via the first joint and / or the second carrier is connected exclusively via the second joint to the first carrier. This ensures that no costly further carrier are necessary for balancing.

In particular, a holding unit for holding the at least one medical device is arranged on the second carrier. This holding unit is in particular designed such that a microscope and other auxiliary devices, such as lighting, can be attached to it in a simple manner. In particular, the holding unit has fixing units designed to be complementary to fastening elements of the medical devices provided. In this way, the medical devices can be easily and securely attached to the holding unit and thus the second carrier. The holding unit is arranged in particular on the second end region of the second carrier.

Further, it is advantageous if the holding unit is pivotally connected to the second carrier, so that in particular a rotation of the microscope is made possible and thus an easy handling is achieved during the operation.

Another aspect of the invention relates to an assembly comprising a previously described tripod having at least one medical device attached to the second carrier. This medical device is in particular a microscope. Furthermore, preferably also other medical devices may be attached to the second carrier.

Further features and advantages of the invention will become apparent from the following description, which illustrate the invention with reference to embodiments in conjunction with the accompanying figure.

It shows:

1 a schematic representation of a tripod, attached to the tripod microscope and two also attached to the tripod auxiliary devices.

In 1 is a schematic representation of a status 10 for holding a microscope W1 shown. The tripod 10 is used in particular in operating theaters for holding the microscope W1 during the operation, so that the surgeon has free access to the patient to be operated on.

The tripod 10 includes a pedestal 6 , with the help of which the tripod 10 can be set up on the floor. At the base 6 is a first carrier 1 arranged in such a way with the stand 6 is connected, that it is rotatably mounted about a first axis S1. For this purpose, in particular, a hinge, not shown, is provided.

At a second end portion of the first carrier 1 is a second carrier 2 about a second axis S2 rotatably on the first carrier 1 attached. At an end portion of this second carrier 2 is a holding unit 5 arranged on which in turn the microscope W1 is attached. Further, on the microscope W1 and the holding unit 5 attached further auxiliary devices W2, W3, which are preferably also medical devices, such as lighting, is. The holding unit 5 in particular, at the second end region of the second carrier 2 attached so as to be rotatably connected to it, so that the microscope W1 and the other auxiliary devices W2, W3 can be rotated to a desired position.

At the second end portion of the second carrier 2 opposite first end portion of the second carrier 2 is a second sliding mechanism 4 provided on which a second counterweight W5 is attached. With the help of the sliding mechanism 4 For example, the second counterweight W5 may travel along a preset travel in the axial direction of the second carrier 2 be moved, so that by the microscope W1, the auxiliary devices W2, W3, the holding unit 5 and between the second axis S2 and the holding unit 5 located portion of the second carrier generated torque to compensate for the second axis S2. That way the tripod will become 10 Balanced around the second axis S2, so that it remains in the desired, set position and does not turn automatically.

At the second end region opposite the first end region of the first carrier 1 is a first sliding mechanism 3 provided on which a first counterweight W4 is attached, said counterweight W4 by means of the sliding mechanism 3 in the axial direction of the first carrier 1 is adjustable along a preset travel path. By means of this first counterweight W4, a counter-moment to that by the microscope W1, the auxiliary device W2, W3, the holding unit 5 , the second carrier 2 , the second counterweight W5 and that between the first axis S1 and the second carrier 2 located part of the first carrier 1 adjusted torque, so that with the help of the counterweight W4 balancing the Statives 10 around the first axis S1 is possible.

The counterweights W4, W5 are preferably so on the carriers 1 . 2 attached, that they can be easily exchanged for other counterweights.

The sliding mechanisms 3 . 4 , in particular their travel paths, and / or the counterweights W4, W5 are preferably dimensioned such that without replacement of a counterweight W4, W5 the tripod 10 regardless of the selected position of the carrier 1 . 2 and the presence or absence of the microscope W1 and / or the auxiliary device W2, W3 can be balanced.

The sliding mechanisms 3 . 4 preferably each have a rail on which the counterweights W4, W5 are fixed and along which they in the axial direction of the carrier 1 . 2 are displaceable. In particular, locking elements, such as terminals and / or screws are provided with the help of which the respective counterweight W4, W5 can be attached to the corresponding rail.

Alternatively to rails can be in the straps 1 . 2 also each having a slot on which the corresponding counterweight W4, W5 is mounted and along the axis of which it is displaceable, so that over the longitudinal axis of the elongated hole of the adjustment is predetermined, so that the tripod 10 can be balanced in a simple way.

Through the tripod described above 10 It is achieved that it is about the two rotatably arranged carrier 1 . 2 offers a variety of adjustment, so that the position of the microscope W1 can be optimally adjusted. By providing the two counterweights W4, W5 at the two end regions of the carrier 1 . 2 a particularly simple construction is achieved, since only the two carriers 1 . 2 are necessary and no further connection elements are required for balancing. The second carrier 2 is in particular with the first carrier 1 exclusively connected via the joint through which the second axis S2 is formed. Furthermore, also the first carrier 1 preferably exclusively via the joint forming the first axis S1 with the base 6 connected. It is not necessary to provide further connecting elements.

LIST OF REFERENCE NUMBERS

1, 2

carrier

3, 4

sliding mechanism

5

holding unit

6

stand

10

tripod

S1, S2

axis

W1

microscope

W2, W3

auxiliary device

W4, W5

counterweight

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10042272 A1 [0003]
• EP 1915965 A2 [0004]
• US 5528417 A [0004]
• US 6050530 A [0004]

Claims (15)

Tripod for holding at least one medical device, with a stand base ( 6 ), one about a first axis (S1) rotatable with the stand base ( 6 ) associated first carrier ( 1 ) and with a second axis (S2) rotatable with the first carrier ( 1 ) second carrier ( 2 ), wherein on the second carrier ( 2 ) the medical device (W1, W2, W3) is fastened, characterized in that on the second support ( 2 ) a second counterweight (W5) for balancing the by the medical device (W1, W2, W3) and the second carrier (W5) 2 ) about the second axis (S2) caused moment in the axial direction of the second carrier ( 2 ) and that on the first carrier ( 1 ) a first counterweight (W4) for balancing the one by the medical device (W1, W2, W3), the second counterweight (W5), the first carrier ( 1 ) and the second carrier ( 2 ) about the first axis (S1) caused moment in the axial direction of the first carrier ( 1 ) is movably arranged. Tripod ( 10 ) according to claim 1, characterized in that the first counterweight (W4) relative to the first axis (S1) on a first side of the first carrier (W4) 1 ) and the second carrier ( 2 ) on one of the first side with respect to the first axis (S1) opposite the second side of the first carrier ( 1 ) on the first carrier ( 1 ) and / or the second counterweight (W5) with respect to the second axis (S2) on a first side of the second carrier ( 2 ) and the medical device (W1, W2, W3) on one of the first side of the second carrier ( 2 ) relative to the second axis (S2) opposite second side of the second carrier ( 2 ) is attachable. Tripod ( 10 ) according to claim 1 or 2, characterized in that the first counterweight (W4) at a first end region of the first carrier (W4) 1 ) and the second carrier ( 2 ) at a second end region of the first carrier opposite the first end region ( 1 ) is arranged and / or the second counterweight (W5) at a first end portion of the second carrier ( 2 ) and the medical device (W1, W2, W3) is arranged at a second end region of the second carrier (FIG. 2 ) can be arranged. Tripod ( 10 ) according to one of the preceding claims, characterized in that the first carrier ( 1 ) a first sliding mechanism ( 3 ), by means of which the first counterweight (W4) in the axial direction of the first carrier ( 1 ) slidably on the first support ( 1 ), and / or the second support ( 2 ) a second sliding mechanism ( 4 ), by means of which the second counterweight (W5) in the axial direction of the second carrier ( 2 ) slidably on the second carrier ( 2 ) is attached. Tripod ( 10 ) according to one of the preceding claims, characterized in that the first carrier ( 1 ) and / or the second carrier ( 2 ) each have a slot extending in the axial direction, on which the corresponding counterweight (W4, W5) is mounted such that it is movable in the axial direction of the slot and lockable by means of a locking mechanism optionally at different locations of the slot. Tripod ( 10 ) according to one of the preceding claims, characterized in that the first carrier ( 1 ) and / or the second carrier ( 2 ) each have a rail extending in the axial direction, on which the corresponding counterweight (W4, W5) is mounted such that it is movable in the axial direction of the rail and with the aid of a locking mechanism selectively lockable at different locations of the rail. Tripod ( 10 ) according to one of the preceding claims, characterized in that the distance of the first counterweight (W4) to the first axis (S1) is less than the distance of the second axis (S2) to the first axis (S1) and / or the distance of the second counterweight (W5) to the second axis (S2) is less than the distance of the medical device (W1, W2, W3) to the second axis (S2). Tripod ( 10 ) according to one of the preceding claims, characterized in that the first axis (S1) and the second axis (S2) are parallel to each other. Tripod ( 10 ) according to one of the preceding claims, characterized in that the first axis (S1) and / or the second axis (S2) is directed horizontally. Tripod ( 10 ) according to one of the preceding claims, characterized in that the first carrier ( 1 ) via a monovalent first joint with the base ( 6 ) and / or the second carrier ( 2 ) via a monovalent second joint with the first carrier ( 1 ) connected is. Tripod ( 10 ) according to claim 10, characterized in that the first carrier ( 1 ) exclusively via the first joint with the pedestal ( 6 ) and / or the second carrier ( 2 ) exclusively via the second joint with the first carrier ( 1 ) connected is. Tripod ( 10 ) according to one of the preceding claims, characterized in that on the second carrier ( 2 ), especially at the second End portion of the second carrier ( 2 ), a holding unit ( 5 ) is arranged for holding the at least one medical device (W1, W2, W3). Tripod ( 10 ) according to claim 12, characterized in that the holding unit ( 5 ) hinged to the second carrier ( 2 ) connected is. Arrangement, with a tripod ( 10 ) according to one of claims 1 to 13, and with at least one on the second carrier ( 2 ) attached medical device (W1, W2, W3). Arrangement according to claim 14, characterized in that a microscope is provided as a medical device (W1, W2, W3).

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