Medical devices with lockable legs

Abstract

The invention relates to a medical device (1, 2) comprising at least two legs (3a, 3b) pivoting relative to each other in a pivoting plane (S) and at least Lockable in one pivot direction and in at least one pivot position, the legs (3a, 3b) have locking portions (4a, 4b) adapted for locking engagement with each other, wherein the locking portions (4a, 4b) offset relative to each other perpendicular to said pivot plane (S) by an offset (V) such that when said legs (3a, 3b) pivot in said pivot plane (S), Said locking parts pass each other transversely in said pivot plane (S) without entering into locking engagement with each other, and said medical devices (1, 2) are configured in such a way that said locking parts (4a, The locking engagement of 4b) is achieved only by applying a lateral force to at least one of said legs (3a, 3b) perpendicular to said pivot plane (S), while eliminating said lateral offset (V).

Description

technical field [0001] The present invention relates to a medical or surgical instrument, preferably of the pliers, scissors and / or tweezers type, such as a surgical needle holder or (surgical) forceps, having at least two legs adapted to rotate in a pivot plane The legs pivot toward each other and are lockable in at least one pivot direction and in at least one pivot position, the legs having locking portions adapted for locking engagement with each other. Background technique [0002] Medical or surgical instruments are often required to lock their instrument parts relative to each other in the form of pivoting legs in order to also (temporarily) fix the distal active part having e.g. bifurcations, cutting blades, tweezers tips Wait. [0003] As an example of a medical / surgical instrument and to illustrate the problem at hand, a surgical needle holder is exemplified in the following. [0004] A surgical needle holder is a medical working device by which the needle is hel...

AI Technical Summary

Problems solved by technology

In order to prevent the clamping jaws from being locked in place, the surgical surgeon must press the two legs apart perpendicular to the pivot plane with great force and must remain in said position for a considerable time, which may lead to the surgical surgeon's Painful pressure (compressed nerve) in the hand or fingers that can lead to numbness and loss of feeling that lasts for several days

[0013] Said design also leads to a limited surgical procedure, especially due to the increased fatigue of the operating surgeon

Moreover, the tactile sensation is strongly limited by the required force expenditure during the guidance and use of the needle and thread

Furthermore, it leads to low user-friendliness, sub-optimal ergonomics and further restrictions on the user

In the absence of any locking forceps or with self-locking forceps, there is also increased fatigue of the operating surgeon and loss of tactile sensation due to the required force expenditure

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