Aesculap AG

Tuttlingen, Germany

Aesculap AG

Tuttlingen, Germany

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The invention relates to a medical referencing device for a medical navigation system (10), by means of which medical navigation system a motion of a body part (16), in particular of the thigh (16), can be tracked in space by means of the referencing device (18; 100; 120; 130) attached to said body part. According to the invention, in order to provide such a referencing device by means of which position data of the body part can be obtained in a manner that is gentle on the patient, the referencing device comprises a fastening apparatus (20) for non-invasively fastening the referencing device (18; 100; 120; 130) to the body part (16) and by means of a referencing body (38), which extends in a planar manner and can be elastically elongated in at least one direction (34, 36) of the extent and which can be adapted in the shape of said referencing body to the contour of the body part (16) and has a marking region (50; 102; 122; 132), which comprises or forms a pattern (54; 136), wherein the referencing body (38) is designed in such a way that the pattern (54; 136) is undeformed or substantially undeformed at least in some sections when the body part (16) is moved, and wherein, at least in some sections, the pattern (54) can be used by the navigation system (10) as a reference for tracking the body part (16) in space. The invention further relates to a medical navigation system and to a method for tracking a medical referencing device in space by means of a navigation system.


Patent
Aesculap AG | Date: 2017-03-08

The present invention relates to a jaw (1) for a surgical tubular shaft instrument, comprising a supporting component (10), a first arm (100) and a second arm (200), the first arm (100) and/or the second arm (200) each having one link element (120, 220). The arms (100, 200) are held by the supporting component (10) in the axial direction. A cam carrier element (300) is axially movable relative to the supporting component (10) and carries at least two cams (321, 322, 323; 331, 332, 333). Each link element (120, 220) is designed to be in contact with at least two cams (321, 322; 331, 332) when there is a relative axial movement between the supporting component (10) and the cam carrier element (300), said cams being provided on the cam carrier element (300), and is further designed to slide off said cams to effect an opening or closing of the jaw (1).


The invention relates to a medical shaft-type instrument (1) comprising an instrument head (3) having a jaw part for applying clamps (8) by means of two jaw-part legs (9, 10) which are moveable in a scissors-like way, wherein the instrument head (3) can be connected via an instrument shaft (4) having an outer tube (5) to an instrument handle (2) inter alia for actuating the jaw part, and comprising a clip magazine (7), in which a retaining rail (12) is fixed for storing a plurality of clamps (8) at a predetermined storage position distance to each other according to the storage principle, wherein all clamps (8) can each be moved forward by one mounting position in the direction of the distal end of the instrument shaft (4) by means of a reciprocating transport and entraining rail (16) within the scope of a single delivery stroke, and of these clamps, the clamp (8) lying closest to the instrument head (3) can be transported by means of a tongue (13) into the jaw part between the jaw-part legs (9, 10), wherein the retaining rail (12) has a support plate or bridge (55) which extends in the distal direction and covers a jaw part region of the one jaw-part leg (9) on the side facing the other jaw-part leg (10) such that a tipping over of an advanced or advanceable clamp (8) on the one jaw-part leg is prevented.


Patent
Aesculap AG | Date: 2017-03-08

The invention relates to a surgical clip (1) for a surgical clip applicator, said surgical clip having at least one pair of clip arms (2a, 2b, 2c, 2d), wherein each clip arm (2a, 2b, 2c, 2d) has a distal end (3a, 3b, 3c, 3d) and a proximal end (4a, 4b, 4c, 4d). The two clip arms (2a, 2b, 2c, 2d) of a pair of clip arms are connected to each other at the proximal ends (4a, 4b) of said clip arms and form a clip throat (5). A tangent angle () between a tangent (T) to a neutral fiber (6) of a clip arm (2a, 2b, 2c, 2d) and a perpendicular (101) to a longitudinal axis (100) of the clip (1) increases over the entire length (l) of the clip arm (2a, 2b) substantially continuously. The invention further relates to production methods for surgical clips.


Patent
Aesculap AG | Date: 2017-04-12

What is proposed to improve a medical system, in particular for implantation into a knee joint endoprosthesis, comprising at least one medical referencing unit, the position of which in space is detectable using a surgical navigation system, which referencing unit comprises at least one surgical marker element, which is arranged or embodied on a carrier element and which is detectable by a detection device of the surgical navigation system, which at least one referencing unit comprises a main body which carries the support element, in such a way that the use thereof is simplified is that the main body has at least one patient-individual bone attachment face which faces away from the main body and deviates from a spherical surface portion and deviates from a plane surface and which is formed in a manner corresponding to a bone surface of the patient.


Patent
Aesculap AG | Date: 2017-01-11

The invention relates to a surgical handheld instrument (1) for grasping an object, comprising: two lever elements (2), each of them with a grip portion (3) and a jaw portion (4), a lever joint (5) which connects the two lever elements rotatably to each other between their grip portion and branch portion, wherein each of the two grip portions is adjoined by a respective spring portion (6) for connecting the two grip portions, such that the two lever elements (2) are held resiliently in an open position. To create an easily manageable, elegant and releasable connection for spring ends on surgical instruments, the handheld instrument comprises a hinge pin (9) fixedly connected thereto at a free end (7) of one spring portion and a bearing eye (10) fixedly connected to said handheld instrument at a free end (7) of the other spring portion, wherein the bearing eye has a longitudinal slit (11) for radial insertion of the hinge pin (9) into the bearing eye (10).


Patent
Aesculap AG | Date: 2017-02-14

A polyaxial pedicle screw includes a screwed shaft section for anchoring the pedicle screw in a vertebra, on one axial end of which a shaft head is configured which is coupled in a rotating and/or pivoting manner as well as in a tensile-force transmitting manner to a receiving sleeve for a longitudinal support. The receiving sleeve has a fastening means for selective positional fastening of the receiving sleeve with respect to the shaft section, the fastening means at least consisting of an inlay/pin mounted in the receiving sleeve and acting on the shaft head, and a locking element acting on the inlay/pin. The inlay/pin is configured with attachment points or engagement elements, which are not covered or overlapped by the locking element, for the provisional introduction of a compressive force on the inlay/pin parallel to the locking element.


Patent
Aesculap AG | Date: 2017-05-03

An electrosurgical instrument is disclosed having a jaw part composed of instrument branches which are movable towards each other and on each mutually facing side of which one or more electrode surfaces are arranged/formed, wherein the movement of the instrument branches relative to each other can be limited by at least one proximal spacer acting on proximal end portions of the instrument branches, at least one medial spacer acting on a medial portion, and at least one distal spacer acting on distal end portions of the instrument branches. According to the invention, the proximal and/or the distal spacer are made of electrically non-conductive material and the at least one medial spacer is composed of at least one electrode made of an electrically conductive material and connected electrically conductively to the electrode. Furthermore, the at least one medial spacer interacts with a local insulation component made of a non-conductive material, which insulation component is arranged in an electrically insulating manner on at least one opposite electrode.


Patent
Aesculap AG | Date: 2017-04-17

The invention relates to a surgical retractor, particularly for the retraction of a separated sternum, with a holding device and two spreader arms, wherein the spreader arms are mounted with one end on the holding device, at a distance from each other that is adjustable in a spreading plane, and at least two retaining elements for retention of bone material, for example of the separated sternum, are arranged on each of the spreader arms. To develop this retractor for sternotomy in such a way as to permit gentler opening of the separated sternum, it is proposed that at least one of the retaining elements is mounted such that its position can be modified in the retraction direction with respect to that end of the spreader arm mounted on the holding device.


Patent
Aesculap AG | Date: 2017-08-02

The invention relates to a disposable surgical instrument which, in accordance with the principle of a modular system, has the following elements: an instrument grip, preferably a pistol grip, which forms a receiving housing, in which instrument grip a separate handle such as an actuating lever is mounted in the manner of a rocker on an articulation point on the handle side; and a shaft-mounted tool, consisting of a shaft comprising at least two relatively axially movable bar or rod components and an instrument head having patient engagement elements which can be actuated by the two relatively axially movable bar or rod components, of which a bar or rod component is fixed at the proximal end thereof to the instrument handle and the other, movable bar or rod component has on the shaft side an articulation point on which the handle is directly articulated in such a way that a manually actuated rocker movement of the handle about the articulation point on the handle side is transformed directly into an axial movement of the other bar or rod component on the articulation point on the shaft side.

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