US 2016/0100841 A1Published application

Surgical instrument

AssigneeCardiomedical GmbH

InventorWolfgang Wiedenbein

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Abstract

A surgical instrument with a parallel gripping and clamping vascular clamp, which is equipped with coupling elements which makes possible a combination of a known detachable operating arrangement and of an actuating tool, in order to keep the access opening in the thorax free of intrusive instruments. With the parallel gripping and clamping operating means of the inventive vascular clamp, the known scissor-like means are dispensed with, and a parallel adjustment of the operating means takes place by means of a lever gear according to the invention. The lever gear is formed from a stationary lever, constructed as a body element, and from several movable levers, consisting of the tension- and pressure element, a push-pull rod, two toggle levers, two pivot arms and two movable branches. The lever gear has nine axes and converts a linear drive movement for adjusting the operating means into a rotationally movable one, whereby the two movable branches are displaceable substantially in a parallel manner towards one another and away from one another.

Claims12

Dependent claims

A surgical instrument as a minimally invasive, continuously gripping and clamping vascular clamp which is suitable for the occluding of tube-shaped organic body parts, the instrument comprising:

a body element,
an operating means with two branches which are able to be actuated relative to one another from a completely open position into a completely closed position, said operating means having a distal end;
a tension and pressure element at the distal end of the operating means;
wherein the movable branches are connected with the body element via a front and rear parallelogram-like articulated connection which have a front and rear articulation axis
wherein the operating means has a proximal end have a coupling arrangement consisting of two retaining jaws for receiving a detachable supply- and removal device which is able to be operated by a surgeon,
wherein the operating means also has an adjusting arrangement in combination with an arresting arrangement,
wherein the adjusting arrangement serves to receive a detachable actuating tool and wherein the actuating tool is operable via the adjusting arrangement in connection with the tension and pressure element for opening and closing the movable branches which are adjustable continuously in a parallel manner with respect to one another,
wherein the vascular clamp comprises a lever gear which consists of a stationary lever, which is constructed as a body element and which has two axially displaceable elements which are arranged along the centre line of the body element and above and below the body element and spaced in a parallel manner by this,
wherein these elements are formed from the tension and pressure element and from a push-pull rod which are securely connected with one another via a connecting element and which consists of six rotationally movable levers, which are formed from the two branches spaced in a parallel manner, two pivot arms and two toggle levers,
wherein the branches are spaced longitudinally and in a parallel manner to the centre line of the body element and connected via the pivot arms and the toggle levers with the body element in a rotationally movable manner at the free end of the body element and perpendicular to the coupling arrangement arranged at the proximal end,
wherein the pivot arm consists of a pair of pivot arms.

8 more elements

A surgical instrument as a minimally invasive, continuously gripping and clamping vascular clamp which is suitable for the occluding of tube-shaped organic body parts, the instrument comprising:

a body element,
an operating means with two branches which are able to be actuated relative to one another from a completely open position into a completely closed position, said operating means having a distal end;
a tension and pressure element at the distal end of the operating means,
wherein the movable branches are connected with the body element via a front and rear parallelogram-like articulated connection which have a front and rear articulation axis,
wherein the operating means has a coupling arrangement at a proximal end consisting of two retaining jaws for receiving a detachable supply and removal device which is able to be operated by a surgeon, and
wherein the operating means also has an adjusting arrangement in combination with an arresting arrangement, wherein the adjusting arrangement serves to receive a detachable actuating tool and
wherein the actuating tool is operable via an adjusting arrangement in connection with a tension and pressure element for opening and closing the movable branches which are adjustable continuously in a parallel manner with respect to one another,
wherein the vascular clamp consists of a one-piece, rod-shaped body element embodied in a straight line, with two free ends which are situated on a straight centre line and of the two branches displaceable in a parallel manner on two circular arcs, which branches are connected via a front pair of pivot arms with the body element and a rear pair of toggle levers, which are connected with the tension and pressure element of the push-pull rod and with the body element.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/874,515Filed 5 Oct 2015
Priority: DE 102014014733.99 Oct 2014
Published: 14 Apr 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

A61B 17/1285
For applying or removing clamps or clips: for minimally invasive surgery
A61B 17/122
For ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord: clamps or clips, e.g. for the umbilical cord
A61B 17/128
For ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord: for applying or removing clamps or clips
A61B 2017/00473
With a releasable handle; with handle and operating part separable: distal part, e.g. tip or head