WO2018058912A1

WO2018058912A1 - Withdrawing-type oct system

Info

Publication number: WO2018058912A1
Application number: PCT/CN2017/076895
Authority: WO
Inventors: 马鸿键; 李佼洋; 陈梓艺; 张俊杰; 孔冠岳; 蔡志岗; 李百灵; 高峻
Original assignee: 广州永士达医疗科技有限责任公司
Priority date: 2016-09-27
Filing date: 2017-03-16
Publication date: 2018-04-05
Also published as: CN207666578U

Abstract

Disclosed is a withdrawing-type OCT (optical coherence tomography) system, comprising an OCT probe, an optical fibre (1), a withdrawing driving device (3), a withdrawing device supporting arm, and a handheld endoscope (2). The withdrawing driving device (3) comprises a withdrawing driving body and a withdrawing driving housing, with the withdrawing driving body being installed in the withdrawing driving housing. The withdrawing driving device (3) is used for driving the OCT probe to move. The withdrawing device supporting arm is used for fixing the withdrawing driving device (3). The handheld endoscope is internally provided with a working channel, and the OCT probe passes through the working channel. By arranging the withdrawing driving device (3) to drive the OCT probe to move in the axial direction, a medical worker can control the amount of movement of the OCT probe more accurately, and by arranging the supporting arm (4), the burden on the arm of the medical worker can be reduced, and the medical efficiency is improved. Moreover, human organs and tissues can be scanned by the probe layer-by-layer, thereby forming information-rich complete images for diagnosis and treatment to effectively achieve medical purposes.

Description

A back pumping OCT system

Technical field

The utility model belongs to the technical field of medical instruments, in particular to a back pumping OCT system.

Background technique

Optical coherence tomography (OCT) is a high-resolution imaging technology developed rapidly in the past decade. It is based on the principle of low-coherence light interference and combined with confocal microscopy to detect different depth layers of biological tissues. The time-delay and echo intensity signals of the backscattered wave echoes of the incident weak coherent light are scanned to obtain a high-resolution microstructure of the sample in two or three dimensions, thereby obtaining a tomographic image of the sample to be measured in vivo. OCT imaging technology eliminates the need for any developer, has no ionization and fluorescence effects, and is more secure than traditional imaging techniques, known as "optical biopsy."

OCT tomography has higher resolution than X-ray imaging, ultrasound imaging and magnetic resonance imaging. The current OCT tomography technology can achieve 10um resolution, which is higher than X-ray and MRI. Two orders of magnitude. High-resolution, non-destructive testing and other advantages make OCT tomography technology widely used in fields such as ophthalmology, dermatology, dentistry and process product testing, and have achieved satisfactory results.

The OCT probe can obtain the pathological information of a certain section of the detected tubular tissue through a circumferential circular scan, but the information displayed by a single section is often limited, which is not conducive to The medical staff accurately determines the type and size of the lesion. In order to improve the diagnosis rate of the lesion, the practical application mainly adopts a method of local three-dimensional reconstruction, that is, a pipeline stereoscopic image composed of multiple sections. To achieve this, the OCT probe is required to move axially along the pipe. The commonly used probe extraction method is to manually adjust the telescopic depth of the OCT probe in the examinee. The manual adjustment method has the following two disadvantages:

First, the amount of displacement of the axial movement of the OCT probe cannot be accurately controlled;

Second, the speed at which the OCT probe moves axially cannot be precisely controlled.

The inability to accurately control the axial displacement means that the patient cannot accurately locate and quantify the size of the lesion in vivo; at the same time, the uncontrollable axial movement speed will bring many errors to the subsequent image calculation, resulting in poor image reconstruction quality. It greatly affects the diagnosis of the actual condition of the patient's lesion by medical personnel.

In addition, although the electric telescopic mechanism can be provided on the handheld endoscope device of the OCT probe to achieve accurate measurement, since the electric telescopic mechanism is directly supported on the handheld endoscope device of the OCT probe, the weight of the electric telescopic mechanism It is entirely borne by the arm of the medical staff. This design ignores the cumulative effect of the weight of the electric telescopic mechanism itself on the body of the medical staff, which brings a large workload to the medical staff, affecting the work efficiency and the accuracy of the diagnosis.

Utility model content

In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a back pumping OCT system which can solve the problem that the medical efficiency is affected by the direct loading of the driving weight onto the arm of the medical staff.

The purpose of the utility model is achieved by the following technical solutions:

A back pumping OCT system comprising an OCT probe, an optical fiber, a back pumping device, a pumping device support arm and a hand-held endoscope, the OCT probe being mounted on one end of the optical fiber, and the other end of the optical fiber being connected to the back pumping device The pumping drive device includes a pumping drive body and a pumping drive housing, the pumping drive body is mounted in the pumping drive housing, and the pumping drive body is configured to drive the OCT probe to move, the pumping The device support arm is used to fix the withdrawal drive device, and the handheld endoscope is provided with a working channel through which the OCT probe passes.

Preferably, the back pumping device support arm is a telescopic arm. It can further solve the technical problem of the setting of the support arm.

Preferably, the back pumping device is filled with a sound absorbing module. It can prevent the technical problem of affecting the scanning accuracy of the OCT probe due to the vibration of the pumping drive.

Preferably, the back pumping drive housing is a hard plastic back pumping drive housing or a lightweight metal back pumping drive housing. It can further solve the technical problem of the material setting of the pumping drive housing.

Preferably, the optical fiber is a single mode optical fiber. It solves the problem of fiber selection.

Preferably, the single-mode optical fiber is provided with a transparent sleeve. It can solve the problem of protecting the fiber.

Preferably, the pumping drive body is a linear motor. It can further solve the technical problem of the setting of the pumping drive body.

Compared with the prior art, the utility model has the following advantages:

The utility model drives the OCT probe along the axial direction of the pipeline by setting a back pumping device The pumping back allows the medical staff to control the movement of the OCT probe more accurately, and by setting the support arm, the burden on the medical staff's arm can be reduced, and the medical efficiency can be improved, and the probe can scan the human organ tissue layer by layer to form a layer. A rich and complete image for diagnosis and treatment for effective medical purposes.

DRAWINGS

1 is a structural view of a back pumping OCT system of the present invention.

Reference numerals: 1, optical fiber; 2, hand-held endoscope; 3, back pumping device; 4, back pumping device support arm.

detailed description

Hereinafter, the present invention will be further described in conjunction with the drawings and specific embodiments:

As shown in FIG. 1 , this embodiment provides a back pumping OCT system including an OCT probe, an optical fiber 1, a pumping drive device 3, a pumping device support arm 4, and a hand-held endoscope 2; The intermediate pumping drive unit 3 can be controlled by a linear motor, but is not limited to a power source of a linear motor, and may have a power source for generating a straight line such as a cylinder and a cylinder.

The OCT probe is mounted on one end of the optical fiber 1, and the other end of the optical fiber 1 is connected to the pumping drive device 3. The pumping drive device 3 is filled with a sound absorbing module; the pumping drive device 3 includes a pumping drive body. And the pumping drive housing is mounted in the pumping drive housing, the back pumping drive housing is a hard plastic back pumping drive housing or a lightweight metal back pumping housing; the pumping drive body 3 Used to drive the OCT probe movement, The pumping device support arm 4 is used for fixing the pumping drive device 3, and the pumping device support arm 4 is a telescopic arm;

The working endoscope 2 is provided with a working channel, and the OCT probe passes through the working channel; the optical fiber 1 is provided with a transparent sleeve, and the optical fiber 1 can be more effectively protected by providing a transparent sleeve, so that the optical fiber 1 It is not easy to be contaminated and prolongs the service life of the device. The transparent sleeve and the single-mode fiber are filled with an oily liquid. The oily liquid has the same or similar refractive index as the outer transparent sleeve, so it does not cause the detection field of view. influences.

The working principle of this embodiment:

When using the OCT probe for detection, the medical staff needs to adjust the position of the probe according to actual needs to detect the part that needs to be detected. Through the pumping drive device 3, the medical staff can precisely control the position of the probe detection, and because of the setting The back pumping device support arm 4, the medical staff's arm does not need to bear the increased force of the pumping drive device 3, so that the medical staff can more stably detect and improve medical efficiency.

Various other changes and modifications may be made by those skilled in the art in light of the above-described technical solutions and concepts, and all such changes and modifications are intended to fall within the scope of the appended claims.

Claims

A back pumping OCT system, comprising: an OCT probe, an optical fiber, a back pumping device, a back pumping device supporting arm and a hand-held endoscope, the OCT probe being mounted on one end of the optical fiber, and the other end of the optical fiber is pumped back The driving device is connected, the pumping driving device comprises a pumping driving body and a pumping driving housing, the pumping driving body is mounted in the pumping driving housing, and the pumping driving body is used for driving the OCT probe to move, the back The pumping device support arm is used for fixing the pumping drive device, and the hand-held endoscope is provided with a working channel through which the OCT probe passes.
The recoil type OCT system of claim 1 wherein said back pumping support arm is a telescoping arm.
The back pumping OCT system of claim 1 wherein said back pumping drive is filled with a sound absorbing module.
The back-extraction OCT system of claim 1 wherein said back pumping drive housing is a rigid plastic back pump drive housing or a lightweight metal back pump drive housing.
The back-extraction OCT system of claim 1 wherein said fiber is a single mode fiber.
The back-extraction OCT system of claim 1 wherein said single mode fiber is provided with a transparent sleeve.
The back pumping OCT system of claim 1 wherein said back pumping drive body is a linear motor.