Surgical positioning device

Abstract

The invention provides a surgical positioning device. The device comprises: a bracket arm fixer, wherein the bracket arm fixer comprises a bracket arm mounting fixing hole and a puncture drainage needle sleeve, the bracket arm mounting fixing hole is used for mounting and fixing the bracket arm fixer on a bracket arm of an operation positioning frame, and the puncture drainage needle sleeve is used for enabling a puncture drainage needle to pass through and restraining the puncture drainage needle to move in the length direction so as to implement puncture drainage; a tracker mounting table which is arranged on the bracket arm fixer, wherein the direction of the tracker mounting table is adjustable; a tracker which is mounted on the tracker mounting table, wherein the angle of the trackerchanges along with the change of the direction of the tracker mounting table; an azimuth sensor which is arranged on the tracker mounting table, wherein the azimuth sensor is used for acquiring angleinformation of the tracker; and a displacement sensor which is arranged on the bracket arm fixer corresponding to the puncture drainage needle, wherein the displacement sensor is used for acquiring displacement information of the puncture drainage needle.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a surgical positioning device. Background technique [0002] In medical practice, it is often necessary to perform puncture and drainage of lesions in solid organs or tissues, such as hematoma or abscess. Because the tissue cannot be seen through, some auxiliary methods are generally used clinically to improve the puncture accuracy. Common auxiliary methods include: 1. Estimating the puncture direction and depth based on imaging data and body surface markers. The advantage is that it is convenient and simple. 2. Intraoperative B-ultrasound positioning has the advantages of real-time guidance and reliable accuracy, but the disadvantage is that it requires a sterile sleeve, the operation is complicated and easy to contaminate, and the B-ultrasound probe is bulky, and the operating space under skull drilling or laparoscopy is limited. 3. The three-dimensional navigation s...

AI Technical Summary

Problems solved by technology

The common auxiliary methods are: 1. Estimate the puncture direction and depth based on imaging data and body surface landmarks. The advantage is that it is convenient and simple. The disadvantage is that the puncture point often drifts due to the baseline difference between preoperative and intraoperative

2. Intraoperative B-ultrasound positioning has the advantages of real-time guidance and reliable accuracy. The disadvantage is that a sterile cover is required, the operation is complicated and easy to be polluted, and the B-ultrasound probe is large in size, and the operating space is limited under skull drilling or laparoscopy.

3. The three-dimensional navigation system is accurate and reliable. The disadvantage is that it needs to wear a frame before surgery, CT or MR scan and plan, which requires high equipment and personnel and is expensive.

[0003] The current 3D navigation system still has navigation aids to block the surgical scene, and its positioning frame contains two trackers: the first tracker locates the direction of the channel, and the second tracker is used to track the depth information in real time. However, the first tracker and the channel position The relationship between them is fixed, and the angle of the first tracker cannot be adjusted during the operation. Defects such as depth information must be obtained through special modifications to the existing puncture and drainage devices, which will affect the smooth implementation of the operation and increase additional work and costs. Not universal

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