CT-guided percutaneous puncture body surface locator

Abstract

The invention discloses a CT guided percutaneous puncture body surface locator, which comprises a dual-layer fixed mount, wherein a plurality of lower layer metal location wires, which are equally spaced, are arranged on the lower layer of the dual-layer fixed mount; crawler-type fixed strips are fixedly arranged on both sides of the upper layer of the dual-layer fixed mount; upper layer metal location wires, which are identical to the lower layer metal location wires in quantity and are in correspondence to the lower layer metal location wires one by one, are arranged between the crawler-type fixed strips on two sides; sliding blocks are arranged on both the upper layer metal location wires and the lower layer metal location wires; the bottoms of the crawler-type fixed strips are of gear-shaped structures; angle regulating wheels are arranged at four ends of a mount body of the dual-layer fixed mount; a main body structure of each angle regulating wheel is a gear; and the gears can be mutually matched with continuous single toothed structures at the bottoms of the crawler-type fixed strips. The body surface locator disclosed by the invention is simple and skillful in structure, relatively simple in structural setting and easy for material preparation and manufacturing; and the body surface locator, with popularization and application, can bring about convenience to medical personnel, relieve pain of patients and reduce puncture risks.

Description

technical field [0001] The invention relates to a body surface locator for percutaneous puncture guided by CT, which belongs to the field of medical auxiliary equipment. Background technique [0002] At present, in the clinical treatment of tumors, CT-guided percutaneous biopsy is a simple and less invasive technique, which has been widely used clinically and can provide reliable histocytological evidence for the qualitative diagnosis of tumors. For CT-guided percutaneous biopsy, the best puncture point and puncture angle must first be located and selected. If the puncture point and puncture angle are improperly selected, it is easy to cause repeated needle insertion, which can easily lead to various complications, such as infection. , bleeding, etc., can lead to the death of the patient in severe cases, resulting in very serious and irreversible consequences. [0003] There are mainly two types of body surface locators currently used in hospitals: a simple body surface loc...

AI Technical Summary

Problems solved by technology

For CT-guided percutaneous biopsy, the best puncture point and puncture angle must first be located and selected. If the puncture point and puncture angle are improperly selected, it is easy to cause repeated needle insertion, which can easily lead to various complications, such as infection. , bleeding, etc., can lead to death in severe cases, resulting in very serious and irreversible consequences

[0003] There are mainly two types of body surface locators currently used in hospitals: a simple body surface locator, which can flexibly select the positioning point, but the needle insertion angle is mainly controlled by the doctor's own experience and technology, and the stability and accuracy are very high. The other is a high-end laser three-dimensional positioning system, which has high stability and accuracy, but is expensive and cumbersome to operate, which brings a heavy burden to patients and is difficult to promote and apply on a large scale.

[0004] The current CT puncture positioner is usually a single-layer positioning device, the positioning is not accurate enough, and the normal tissue around the lesion may be damaged when the medical staff punctures the skin

Patent No. CN201220305313.4 discloses a three-dimensional double-layer CT-guided puncture positioning frame, which has many defects in the application process: it can only be used for single-layer puncture positioning; when positioning, it is necessary to mark the puncture point with a pen, and the positioning is not accurate enough ;The upper positioning guide wire is fixed by adhesive tape, which is not fixed firmly and is not easy to replace

Patent No. CN104783830 A discloses a three-dimensional double-layer CT-guided puncture positioning frame. body, which can realize multi-layer puncture positioning; only need to move the slider of the corresponding color when positioning, and the positioning is simple and accurate; although the positioning frame provided by the invention can realize multi-layer puncture, the structural setting is relatively cumbersome, and the positioning guide wire on each layer There are 5 different color sliders, and the settings do not allow angled punctures, which are more frequent in clinical use

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