US 10,245,109 B2 · Stereotactic surgical instrument

Abstract

A stereotactic surgical instrument for use in stereotactical therapy and surgery and a coupling mechanism for such an instrument is disclosed. The stereotactic surgical instrument includes a semi-circular arc part and a head frame. The head frame is arranged for fixation to a head of a patient by pins or screws. The arc part includes coupling members shaped as rings arranged at a fixed distance from each other for attaching and locking the arc part to the head frame. The head frame includes support members formed as rings for receiving corresponding coupling members. Each coupling member includes a pivotable clamp element arranged to partly surround a respective support member circumferentially when the arc part is coupled to the head frame. The coupling members include locking elements arranged to receive a tip portion of the respective clamp element and adjustable locking knobs for tightening and locking respective coupling member to respective support member.

Claims20

Dependent claims

A stereotactic surgical instrument comprising:

a semi-circular arc defined by first and second ends configured to be positioned on opposite sides of a patient;
and
a head frame configured to encompass a head of the patient,
wherein the head frame is arranged for fixation to the head of the patient by pins or screws,
wherein the first and second ends of the arc comprise coupling members shaped as rings for attaching and locking the arc directly to the head frame,
wherein the head frame comprises support members formed as rings for receiving corresponding coupling members,
wherein each coupling member includes a pivotable clamp element arranged to partly surround a respective support member circumferentially when the arc is coupled to the head frame, and
wherein the coupling members include locking elements arranged to receive a tip portion of the respective clamp element and adjustable locking knobs for tightening and locking a respective coupling member to a respective support member, such that the arc is pivotally fixed to the head frame and can be pivoted in an arc manner to adjust a rotational angle of the arc, where the coupling members enable adjusting and locking of the rotational angle of the arc.

5 more elements

A coupling mechanism for coupling or attaching a semi-circular arc rigidly to a head frame of a stereotactic surgical instrument for use in stereotactic surgery, wherein the head frame is arranged for fixation to a head of a patient by means of pins or screws and is configured to encompass the head of the patient,

wherein the semi-circular arc is defined by first and second ends configured to be positioned on opposite sides of the patient,
wherein the first and second ends of the arc comprise coupling members shaped as rings for locking the arc directly to the head frame,
wherein the head frame comprises support members formed as rings for receiving corresponding coupling members, wherein each coupling member includes a pivotable clamp element arranged to partly surround a respective support member circumferentially when the arc is coupled to the head frame, and
wherein the coupling members include locking elements arranged to receive a tip portion of the respective clamp element and adjustable locking knobs for tightening and locking a respective coupling member to a respective support member, such that the arc is pivotally fixed to the head frame and can be pivoted in an arc manner to adjust a rotational angle of the arc, where the coupling members enable adjusting and locking of the rotational angle of the arc.

1 more element

Dependencies are inferred from the claim text.

Stereotactic surgical instrument

Life of this patent

Stereotactic surgical instrument

Life of this patent

Abstract

Claims20