DE102016122279A1 - medical instrument - Google Patents

Abstract

In a medical instrument having a first leg (2) and a second leg (3), the first leg (2) and the second leg (3) to be connected to each other via a latching mechanism (4).

Description

Technical area

The invention relates to a medical instrument according to the preamble of claim 1.

State of the art

Such medical instruments are already known and used in various forms and configurations. Only by way of example is on the DE 10 2014 110 883 A1 referenced, in which a handle of a medical instrument is disclosed. A pivotably mounted handle lever can be locked in at least one pivotal position relative to the handle in at least one direction. The locking mechanism can be switched on, off and optionally temporarily off.

The disadvantage here is that a stepwise adjustment of the locking mechanism is not possible. Although the latching mechanism can be switched on and off, it can only be latched in one direction when it is switched on.

Object of the invention

The object of the present invention is to overcome the disadvantages of the prior art. In particular, a medical instrument is to be provided which enables more flexible handling, in particular of a latching mechanism. At the same time, the medical instrument should be simple, inexpensive to produce and easy to clean.

Solution of the task

To achieve the object, the features according to claim 1.

Advantageous embodiments are described in the subclaims.

The medical instrument has a first leg and a second leg. Furthermore, the medical instrument is provided with a latching mechanism which can be locked in preferably three stages.

The latching mechanism has a rail which is pivotally attached thereto via a hinge on an inner surface of the second leg. Inner surface is present, the surface of the second leg, which faces the first leg.

The rail is further movable in a recess of a sliding element. At one end, the sliding element is connected via a bolt with a push button. The push button in turn is arranged pressed on an outer side of the first leg. Outer side is the surface of the first leg, which faces away from the second leg.

The push button has in its interior a blind hole in which a spring is mounted. At one end, the spring thus abuts against a closed end of the blind bore, on its side opposite the blind hole, the spring presses against a locking ball, which in turn can be brought into operative connection with internal teeth in the first limb.

In a middle position of the detent mechanism, i. in a so-called neutral position, the rail is moved in the recess in the slider element such that edges of the recess extend parallel to edges of the rail sliding in it. The Rastierkugel is located approximately in the middle of the internal teeth in the first leg. The spring has a bias. A tilting of the edges and thus a locking of the locking mechanism or the medical instrument does not take place.

In an inner position of the latching mechanism, the rail is moved in the recess in the sliding element such that the edges of the recess no longer run parallel to the edges of the rail sliding in it, but tilt the edges. This was done by pressing the sliding element or the associated push button against the train of spring in the direction of the outer surface of the first leg. The Rastierkugel is located on the internal teeth in a direction away from the rail direction shifted upward. The rail or the latching mechanism and thus the medical instrument is locked against opening.

In an external position of the latching mechanism, the rail is moved in the recess in the sliding element in such a way that the edges of the recess no longer run parallel to the edges of the rail sliding in it, but the edges and tilt, but this time the opposite edge ends the edges are affected compared to the inner position. This was done by pressing the sliding element or the associated push button again against the train of spring in the direction of the outer surface of the first leg. The Rastierkugel is located on the internal teeth in a direction facing the rail shifted downwards. The rail or the latching mechanism and thus the medical instrument is locked against closure.

In the present embodiment, the latching mechanism is preferably arranged on the outer surface of the first leg above the rail. Above this means here in the direction of a joint facing side of the rail over which the two legs are rotatably mounted. The rail is arranged on the inner surface of the second leg. Of course, should be encompassed by the present invention, that the locking mechanism below the rail, that is arranged on the side facing away from the joint of the rail. Furthermore, it is conceivable to arrange the latching mechanism on an inner surface of the first leg or on an inner or outer surface of the second leg. The rail would then be arranged correspondingly on an inner surface of the first leg.

Furthermore, the rail may be formed like a wave, since some users feel the desire to "feel" the detent during use.

The medical instrument has the advantage that the requirement has been met to make the locking mechanism lockable in both directions, but also to allow a position in which no locking action of the locking mechanism is deployed (center position / neutral position).

Another advantage is that significantly reduced by the present locking mechanism or the absence of ratchet teeth or the like sharp elements damaging the gloves of the user and sometimes even turned off.

list of figures

• 1 eine Seitenansicht eines erfindungsgemässen medizinischen Instrumentes mit Rastmechanismus in einer Mittelstellung;
• 2 eine Seitenansicht des Instrumentes in 1 mit dem Rastmechanismus in einer Innenstellung;
• 3 eine Seitenansicht des Instrumentes in 1 mit dem Rastmechanismus in einer Ausserstellung.

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings; these show in:

• 1 a side view of an inventive medical instrument with locking mechanism in a middle position;
• 2 a side view of the instrument in 1 with the locking mechanism in an inner position;
• 3 a side view of the instrument in 1 with the locking mechanism in an exception.

embodiment

In the 1 to 3 is a medical instrument 1 shown. The medical instrument 1 has a first leg 2 and a second leg 3 on. Further, the medical instrument 1 with a locking mechanism 4 provided, which can be locked in preferably three stages.

The locking mechanism 4 has a rail 5 on which a swivel joint 6 on an inner surface 7 of the second leg 3 is pivotally mounted on this. palm 7 In this case, the area of the second leg is 3 which is the first leg 2 is facing.

The rail 5 is still in a recess 8th a sliding element 9 traversable. One is the sliding element 9 over a bolt 10 with a push button 11 connected. The push button 11 turn is on an outside 12 of the first thigh 2 arranged depressibly. outside 12 is the area of the first leg 1 which of the second leg 3 turned away.

The push button 11 has in its interior a blind hole 13 on, in which a spring 14 is stored. At one end lies the spring 14 thus at a closed end of the blind hole 13 on, on her the blind hole 13 opposite side presses the spring 14 against a Rastierkugel 15 , which in turn with an internal toothing 16 in the first leg 2 can be brought into operative connection.

In a middle position of the locking mechanism 4 according to 1 in a so-called neutral position, is the rail 5 such in the recess 8th in the slider element 9 proceed that edges 17 the recess 8th parallel to edges 18 the rail sliding in it 5 run. The Rastierkugel 15 is located approximately in the middle of the internal toothing 16 in the first leg 2 , The feather 14 has a bias. A tilting of the edges 17 and 18 and thus a locking of the locking mechanism 4 or the medical instrument 1 does not take place.

In an inner position of the locking mechanism 4 according to 2 is the rail 5 such in the recess 8th in the sliding element 9 proceed that the edges 17 the recess 8th no longer parallel to the edges 18 the rail sliding in it 5 but the edges are lost 17 and 18 tilt. This was done by pressing the sliding element 9 or the associated push button 11 against the train of the spring 14 in the direction of the outer surface 12 of the first thigh 2 , The Rastierkugel 15 located on the internal toothing 16 in one of the rail 5 shifted away upward direction. The rail 5 or the locking mechanism 4 and with it the medical instrument 1 is locked against opening.

In an external position of the locking mechanism 4 according to 3 is the rail 5 such in the recess 8th in the sliding element 9 proceed that the edges 17 the recess 8th again not parallel to the edges 18 the rail sliding in it 5 but the edges are lost 17 and 18 but this time, the opposite edges are the edges 17 and 18 compared with the inner position affected. This was done by pressing the sliding element 9 or the associated push button 11 again against the train of the spring 14 in the direction of the outer surface 12 of the first thigh 2 , The Rastierkugel 15 located on the internal toothing 16 in one of the rails 5 facing downward direction. The rail 5 or the locking mechanism 4 and with it the medical instrument 1 is locked against closure.

Although only a / a few preferred embodiments of the invention have been described and illustrated, it will be obvious that one skilled in the art can add numerous modifications without departing from the spirit and scope of the invention.

LIST OF REFERENCE NUMBERS

1

Medical instrument

2

leg

3

leg

4

detent mechanism

5

rail

6

joint

7

palm

8th

recess

9

sliding element

10

bolt

11

push-button

12

outer surface

13

Blind hole

14

feather

15

Rastierkugel

16

internal gearing

17

edge

18

edge

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 102014110883 A1 [0002]

Claims (4)

Medical instrument having a first leg (2) and a second leg (3), characterized in that the first leg (2) and the second leg (3) via a latching mechanism (4) are interconnected. Medical instrument after Claim 1 , characterized in that the latching mechanism (4) has a sliding element (9) which can be brought into operative connection with a rail (5). Medical instrument after Claim 1 or 2 , characterized in that the latching mechanism (4) has a push button (11). Medical instrument according to one of the preceding claims, characterized in that the latching mechanism (4) has a Rastierkugel (15) which can be brought into operative connection with an internal toothing (16).

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