CN108634996B

CN108634996B - Zeroing operation method for laser-assisted angle system under CT guidance

Info

Publication number: CN108634996B
Application number: CN201810818176.6A
Authority: CN
Inventors: 倪建明; 张追阳; 唐平; 陆银春
Original assignee: Wuxi No 2 Peoples Hospital
Current assignee: Wuxi No 2 Peoples Hospital
Priority date: 2018-07-24
Filing date: 2018-07-24
Publication date: 2023-06-23
Anticipated expiration: 2038-07-24
Also published as: CN108634996A

Abstract

The utility model discloses a zeroing operation method for a laser auxiliary angle system under CT guidance, which comprises a laser projector, a rotary dial, a horizontal sliding rail and a base, wherein the rotary dial is vertically and movably arranged on the horizontal sliding rail, the laser projector is coaxially arranged in the rotary dial, and the horizontal sliding rail is fixed on the base provided with a horizontal regulator. The laser auxiliary angle selection system and the zeroing setting method thereof for CT guidance have the advantages of simple structure, flexible use and high accuracy, and greatly improve the working efficiency of medical staff.

Description

Zeroing operation method for laser-assisted angle system under CT guidance

Technical Field

The utility model relates to the field of medical auxiliary equipment and using methods thereof, in particular to a zeroing operation method for a laser auxiliary angle system under CT guidance.

Background

Lung cancer is the most common malignancy, and lung is also the site of most metastasis. Because of the lack of specificity in imaging lung tumors, percutaneous lung biopsy under CT guidance remains one of the important diagnostic tools, especially for peripheral tumors, the obtained samples can also be used for gene detection to guide targeted therapies. The percutaneous lung puncture technology is also the technical foundation for Hookwire wire positioning, tumor particle implantation treatment and other treatments before the television thoracoscopy of the lung nodules. Unlike ultrasound real-time guidance, freehand puncture is very time consuming, especially when the lesion is small or deep.

To improve lancing accuracy and efficiency, many students have developed a variety of auxiliary lancing systems: from low cost simple needle holding devices to complex electromechanical systems such as robotic puncture systems, electromagnetic or laser navigation systems, etc., that need to be integrated into the CT scanning hardware and communicate with the system software. In addition to the high price of these systems, the systems disinfect and complex image registration, further complicating the surgical procedure. In addition, the laser navigation system also needs to install a fixed track on the ceiling of the CT room, the requirement of changing the machine room structure is difficult to be accepted by a hospital manager, and the laser positioning device installed on the scanning frame also faces similar problems.

Disclosure of Invention

The utility model aims to overcome the existing defects and provide the laser auxiliary angle selection system and the zeroing method thereof, which have the advantages of simple structure, flexible use and accurate positioning and are used for CT guidance. In order to solve the problems, the utility model adopts the following technical scheme:

the utility model provides a laser auxiliary angle system for under CT guide, includes laser projector, rotatory calibrated scale, horizontal slide rail and base, rotatory calibrated scale is perpendicular, movably places on horizontal slide rail, laser projector is coaxial to be set up in rotatory calibrated scale, horizontal slide rail is fixed on the base that is equipped with the level regulator.

Further, the laser projector is driven by a battery.

Further, the laser projector can project a sector light curtain composed of a plurality of dense red or green laser beams with the wavelength of 400-700 nm.

Further, the zeroing operation method for the laser auxiliary angle system under the guidance of CT is characterized by comprising the following steps:

(1) The laser angle selection system is arranged at the far end of the CT scanning bed, and the horizontal sliding rail is adjusted to be horizontal by adjusting the height of the base, so that a light curtain or a light wall with a preset angle can be projected to the direction of the frame of the CT scanning bed;

(2) Adjusting the light curtain or the light wall to be vertical to zero degrees, and displaying the rotary dial at the zero degrees;

(3) Turning on a CT laser positioning lamp, and displaying a CT laser projection positioning line on a CT scanning bed frame;

(4) And moving the laser projector along the horizontal slide rail to enable the laser line projected by the laser projector to completely coincide with the longitudinal positioning laser line projected by the CT laser positioning lamp.

The utility model has the technical effects that:

the laser auxiliary angle selection system and the zeroing setting method thereof for CT guidance have the advantages of simple structure, flexible use and high accuracy, and greatly improve the working efficiency of medical staff.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a schematic view of a projected linear light curtain in accordance with the present utility model;

FIG. 4 is a diagram showing the laser line position projected into a CT scanner gantry and the laser line position projected by a CT laser positioning lamp in accordance with the present utility model;

fig. 5 is a schematic diagram of the projected laser line after zero correction according to the present utility model.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

As shown in fig. 1-2, a laser-assisted angle selection system for CT guidance comprises a laser projector 1, a rotary dial 2, a horizontal slide rail 3 and a base 4, wherein the rotary dial 2 is vertically and movably placed on the horizontal slide rail 3, the laser projector 1 is coaxially arranged in the rotary dial 2, and the horizontal slide rail 3 is fixed on the base 4 provided with a horizontal regulator. The laser projector 1 is driven by a battery. The laser projector 1 can project a sector light curtain composed of a plurality of dense laser beams with the wavelength of 400-700 nm.

The laser auxiliary angle selection system for CT guidance also comprises a zeroing method thereof, and the method comprises the following steps:

(1) The laser angle selection system is arranged at the far end of the CT scanning bed, and the horizontal sliding rail 3 is adjusted to be horizontal by adjusting the height of the base 4, so that a light curtain or a light wall 5 (shown in figure 3) with a preset angle can be projected towards the frame direction of the CT scanning bed;

(2) Adjusting the light curtain or wall 5 to a vertical zero degree, at which time the rotary dial 2 is shown as zero degree;

(3) Turning on a CT laser positioning lamp, and displaying a CT laser projection positioning line 6 (shown in figure 4) on a CT scanning bed frame;

(4) The laser projector 1 is moved along the horizontal slide rail 3 so that the laser line 7 projected by the laser projector completely coincides with the longitudinal positioning laser line 8 projected by the CT laser positioning lamp (as shown in fig. 5).

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The zeroing operation method for the laser auxiliary angle system under the guidance of CT comprises a laser projector, a rotary dial, a horizontal sliding rail and a base, wherein the rotary dial is vertically and movably arranged on the horizontal sliding rail, the laser projector is coaxially arranged in the rotary dial, projects a sector light curtain or a light wall consisting of a plurality of red or green dense laser beams with the wavelength of 400-700nm, the horizontal sliding rail is fixed on the base provided with a horizontal regulator, the laser projector is driven by a battery, the light curtain or the light wall is vertical to the rotary dial, and when the laser auxiliary angle system is directly opposite to and arranged at the far end of a CT scanning bed, and the zeroing operation method is characterized by comprising the following steps:

(1) The laser auxiliary angle system is opposite to and placed at the far end of the CT scanning bed, and the horizontal sliding rail is adjusted to be horizontal by adjusting the height of the base, so that a light curtain or a light wall with a preset angle is projected to the direction of the CT scanning bed frame;

(4) And moving the laser projector along the horizontal slide rail to enable the projected light curtain or light wall to completely coincide with the longitudinal positioning laser line projected by the CT laser positioning lamp.