EP3449888A1 - Head support for a surgical table - Google Patents

Abstract

The invention relates to a headrest for operating tables with an arcuate support element (2) for supporting an occiput of a patient and having a first and a second holding element (4,5) for lateral contact with the head of the patient, wherein the two holding elements (4,5) relative to the support element (2) are pivotable, wherein at least one fastening band (19,20) for connecting the front end portions of the two holding elements (4,5) and for abutment on the front head portion of the patient is provided.

It is provided that the first and the second holding element (4,5) in each case about a first or second axis of rotation (6,7) are pivoted individually pivotable on the support element (2), wherein the Verschwenkweg each holding element (4,5) in pivoted position of the same by each one on the outside of the support element (2) arranged end stop (8.9) is limited.

Description

The invention relates to a headrest for operating tables with an arcuate support member for supporting an occiput of a patient and with a first and a second holding element for lateral contact with the head of the patient, wherein the two holding elements relative to the support element are pivotable, wherein at least one fastening band for connecting the front end portions of the two holding elements and is intended to rest on the front head region of the patient.

Especially in operations in the shoulder area, a patient is placed supine on an operating table. For secure support of the head, a head restraint is attached to the operating table by means of which a secure fixation of the head is made during surgery to ensure that the surgery can take place with the least possible risk to the patient.

Out EP 2 724 701 B1 is a headrest with the features of the preamble of claim 1 is known. This headrest has a first holding element mounted around a first axis of rotation for enclosing a first side of a head of a patient which can be received in a receiving area of the headrest and a second holding element mounted about a second axis of rotation for enclosing a second side of the head of the patient, wherein the first holding element and the second holding element in a coupling region with the aid of at least one coupling element are coupled to each other such that upon rotation of one of the holding elements, the coupling element also rotates the other holding element. It is between the coupling area and the receiving area a fixedly arranged support member for supporting the recorded in the receiving area head provided. The coupling element preferably consists of a gear transmission, ie, both holding elements each have a gear segment, wherein both gear segments are engaged with each other. This design of the headrest a fairly simple operation for adjusting the holding elements is possible, since only one holding element must be operated and the other holding element is synchronously and uniformly pivoted by the coupling element.

However, the structure of the headrest is relatively expensive due to the integrated gear in this gear and requires a not inconsiderable space. In addition, both retaining elements can be operated only simultaneously and synchronously, so that an exact adaptation to the respective head shape is difficult or impossible, especially if the head of the patient is not exactly in the middle of the receiving area.

The object of the invention is to provide a headrest for operating tables, which is simple in construction, easy to use and adaptable to the respective head storage situation and the respective head shape.

This object is achieved in that the first and the second holding element are each pivoted about a first or second axis of rotation individually pivotable on the support element, wherein the Verschwenkweg each holding element in the pivoted position of the same is limited by one arranged on the outside of the support element end stop ,

The headrest is thus simple, since the two holding elements are individually articulated on the support element and no coupling gear is provided. Since each retaining element can be pivoted individually, an exact adaptation to the head shape or head mounting position is possible, ie both retaining elements can be pivoted individually far to abut each on the respective side of the head of the patient. In maximum swung out Location are both holding elements respectively on the end stop of the support element, so that they are in approximately horizontal position and serve the holding elements in this position as a safe support surface for an anesthetist during the induction of anesthesia or other activities. In this case, the head of the patient is held securely in this position due to the arcuate design of the support element. By simple individual pivoting of the holding elements and connection of the end portions of the two holding elements with at least one fastening band then a secure helmet-like support of the head of the patient is guaranteed in the headrest before the operation begins.

In a preferred embodiment, it is provided that the respective stop surface of the respective end stop from the adjacent outer edge of the support element is further spaced than the respective axis of rotation. This arrangement of the end stops ensures that lie in the pivoted position of the two holding elements this approximately horizontal position on the end stop.

In a particularly preferred embodiment, it is provided that on the outer side of each holding element in each case a displaceable slider is arranged, which is designed so that it does not protrude between a first end position, in which it the support member facing edge of the holding element, and a second end position is displaceable, in which it bears against the stop surface of the associated end stop. By this slider on the respective holding element, the operation of the headrest can be much easier. For this purpose, the respective holding element is first pivoted into a vertical position and the slider over the edge of the holding element also moved to the associated end stop until it bears against the stop surface of the end stop. As a result, the respective holding element is secured by the voltage applied to the associated end stop slider against accidental folding down out of the vertical position, it can then be pivoted only further inward against the side of the patient's head.

It is preferably provided that the slider is guided on the holding element. For this purpose, the slider may on the back have guide pins which engage in guides on Halteelemnt.

Preferably, it is also provided that the sliding piece has a slot in which a locking screw engages. By tightening the locking screw, the slider can be locked in the respective position, usually in one of the two end positions.

In a further embodiment, it is provided that two fastening straps are provided, wherein the first fastening strap surrounds the forehead of the patient and the second fastening strap encloses the chin of the patient. This ensures a nearly helmet-like protection of the head.

It is advantageously provided that the respective fastening strap is formed variable in length and additionally or alternatively consists of an elastic material. These two embodiments ensure a direct contact of the two holding elements on the head sides of the patient as well as a secure abutment in the chin region of the patient.

• Fig. 1 eine perspektivische Darstellung einer Kopfstütze in geschlossener Lage,
• Fig. 2 eine Draufsicht auf die Kopfstütze in maximal aufgeschwenkter Lage,
• Fig. 3 eine Seitenansicht der Kopfstütze in geschlossener Lage und
• Fig. 4 einen Schnitt gemäß Linie A-A in Fig. 3.

The invention is explained in more detail below with reference to the drawing, for example. This shows in

• Fig. 1 a perspective view of a headrest in a closed position,
• Fig. 2 a top view of the headrest in maximum pivoted position,
• Fig. 3 a side view of the headrest in a closed position and
• Fig. 4 a section along line AA in Fig. 3 ,

A headrest for operating tables is generally designated 1. This headrest 1 initially has an arcuate support element 2, which serves to support an occiput of a patient. This support element 2 has on its rear side a fastening element 3 for fastening a retaining arm, not shown, of an operating table.

In addition to the arcuate support element 2, the headrest 1 has a first holding element 4 and a second holding element 5. Each of these two holding elements 4, 5 serves for lateral abutment on one side of a head of a patient. Both holding elements 4, 5 are hinged relative to the support member 2 pivotally. In this case, the first holding element 4 is articulated about a first axis of rotation 6 in a first edge region of the support element 2 and the second holding element 5 about a second axis of rotation 7 in the second edge region of the support element individually pivotable on the support element 2.

The Verschwenkweg each holding element 4, 5 in a pivoted position ( Fig. 2 ) is in each case bounded by an end stop 8, 9 arranged on the outside of the support element 2. These two end stops 8, 9 may be screwed to the support member 2, for example. Corresponding fastening screws are designated by 10. The respective abutment surface 8a, 9a of the respective end stop 8, 9 is further spaced from the adjacent outer edge 2a or 2b of the support element 2 than the respective axis of rotation 6, 7. The exact distance of the respective stop surface 8a, 9a from the associated outer edge 2a, 2b of the support element 2 determines the maximum pivotability of the holding elements 4, 5 in swung-out position. Preferably, the end stops 8, 9 are arranged so that the holding elements 4 and 5 are in the pivoted position approximately in a horizontal position. This position is in Fig. 2 shown. In this maximally pivoted-out position of the two holding elements 4, 5, each holding element 4, 5 can serve as a support surface for an anesthetist or the like before the actual beginning of an operation.

On the outside of each retaining element 4, 5 is in each case a displaceable slider 11, 12, which is designed such that it is displaceable between a first end position, in which it does not project beyond the edge of the retaining element 4, 5 facing the support element 2, and a second end position, in which it bears against the abutment surface 8a, 9a the associated end stop 8, 9 is applied. The first end position is in Fig. 4 left for the retaining element 4 and the second end position is in Fig. 4 shown right for the second holding element 5. The slider 11, 12 is guided on the holding element 4, 5 respectively. For this purpose, the slider 11, 12 on the back have guide pins which engage in guides on the retaining element, which is not shown in the drawing.

The respective slider 11, 12 has a slot 13, 14, in which a locking screw 15, 16 engages. This locking screw 15, 16 is screwed into a corresponding bore 17, 18 with internal thread in the holding element 4, 5.

The headrest 1 also preferably has two fastening straps, namely a first fastening strap 19 for enclosing the forehead of the patient and a second fastening strap 20 for enclosing the chin of the patient. Both straps 19, 20 are preferably variable in length and alternatively or additionally formed elastically.

Both the arcuate support element 2 and the two holding elements 4 and 5 and possibly the fastening straps 19, 20 are each provided on the inside of the patient facing the head with suitable pads 21, 22, 23, 24 and 25.

Before starting an operation, in particular a shoulder operation, the patient is placed in a supine position on an operating table, not shown, in such a way that his head or back of the head is on the arcuate support element 2. In this situation, the two holding elements 4 and 5 are fully swung open, ie in the position according to Fig. 2 , so arranged approximately horizontally. In this position of the headrest, the patient may be assisted by an anesthetist For example, be intubated, which can be supported on one of the two holding elements 4 or 5. The head is already securely held in the arcuate support element 2.

Following this, the two holding elements 4 and 5 are pivoted vertically upwards and the two sliders 11 and 12 are moved after loosening the fastening screws 17 and 18 down until they abut respectively on the stop surface 8a, 9a of the end stop 8 and 9 respectively , This ensures that the two holding elements 4, 5 can not unintentionally fold down again before the final fixation of the headrest 1 on the head of the patient. Finally, the two fastening straps 19 and 20 are closed and tightened. In this case, the two holding elements 4 and 5 can pivot further inward until it touches the respective head side of the patient.

The farther the sliders 11, 12 are pushed down onto the abutment surfaces 8a, 9a, the support elements 4, 5 incline more and more in the direction of the support element 2, so that the headrest 1 becomes ever narrower.

To solve the headrest 1 is reversed procedure: First, the straps 10 and 20 and the mounting screws 17 and 18 are released and then the sliders 11, 12 are pushed up into the first end position and locked there by screwing the Befetigungsschrauben17 and 18. The holding elements 4 and 5 are thereby released and can be pivoted (opened) in the second end position.

The two end stops 8, 9 may also be an integral part of the arcuate support element 2, so be molded. The support element can also be divided symmetrically into two halves in the region of the fastening element 3 and held together by the fastening element 3.

List of reference numbers :

1

headrest

2

support element

2a, 2b

Supporting element outer edge

3

fastener

4, 5

retaining element

6

first axis of rotation

7

second axis of rotation

8, 9

end stop

8a, 9a

stop surface

10

fixing screw

11, 12

slide

13, 14

Long hole

15, 16

locking screw

17, 18

drilling

19, 20

fixing tape

21 - 25

pad

Claims (8)

Headrest for operating tables with an arcuate support element (2) for supporting an occiput of a patient and with a first and a second holding element (4,5) for lateral contact with the head of the patient, wherein the two holding elements (4,5) with respect to the support element ( 2) are pivotable, wherein at least one fastening band (19, 20) is provided for connecting the front-side end regions of the two retaining elements (4, 5) and for bearing against the front head region of the patient,
characterized,
in that the first and the second holding element (4, 5) are articulated individually pivotable about a first or second axis of rotation (6, 7) on the support element (2), wherein the pivotal path of each holding element (4, 5) in the pivoted-on position thereof is through each one on the outside of the support element (2) arranged end stop (8,9) is limited. Headrest according to claim 1,
characterized,
that the respective stop surface (8a, 9a) of the respective end stop (8,9) from the adjacent outer edge (2a, 2b) of the supporting element (2) is spaced further than the respective axis of rotation (6,7). Headrest according to claim 2,
characterized,
that on the outer side of each holding element (4.5) in each case a displaceable slide (11,12) is arranged, which is formed so that between a first end position in which it (the side facing the support element (2) edge of the retaining element 4 , 5) is not projected, and a second end position is displaceable, in which it rests against the stop surface (8a, 9a) of the associated end stop (8,9). Headrest according to claim 3,
characterized,
that the slider (11,12) is guided on the holding element (4.5). Headrest according to claim 4,
characterized,
in that the sliding piece (11, 12) has a slot (13, 14) in which a locking screw (15, 16) engages. Headrest according to one of claims 1 to 5,
characterized,
in that two fastening straps (19, 20) are provided, wherein the first fastening strap (19) encloses the forehead of the patient and the second fastening strap (20) encloses the chin of the patient. Headrest according to one of claims 1 to 6,
characterized,
that the respective fastening band (19, 20) is variable in length. Headrest according to one of claims 1 to 7,
characterized,
that the respective fastening band (19, 20) consists of an elastic material.

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