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Imaging catheter and imaging device

An imaging catheter and imaging lens technology, applied in the field of medical devices, can solve problems such as low efficiency and complicated operation, and achieve the effects of simple operation, small cross-sectional area, and shortened operation time

Active Publication Date: 2021-10-01
HARBIN MEDICAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, the application provides an imaging catheter and an imaging device, which are used to solve the problem that in the prior art, in order to obtain more image information, it is necessary to add additional signal channels or replace catheters with different imaging methods Image acquisition, complex operation and low efficiency

Method used

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  • Imaging catheter and imaging device
  • Imaging catheter and imaging device
  • Imaging catheter and imaging device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] see figure 1 , image 3 as well as Figure 4 , an imaging catheter 100 provided in this embodiment is applied to an imaging device, and the imaging device is used for endoscopic imaging.

[0047] The imaging catheter 100 provided in this embodiment includes a sleeve assembly 110 and an optical probe 120. The optical probe 120 is arranged in the sleeve assembly 110, that is to say, the sleeve assembly 110 is the carrier of the optical probe 120. When in use, the sleeve assembly 110 is used to deliver the optical probe 120 to the tissue or lesion to be scanned.

[0048] One end of the sleeve assembly 110 is provided with a joint 111, and the joint 111 is used for connecting with the OCT host. The other end of the sleeve assembly 110 is a free end, and the end surface is made of light-transmitting material.

[0049] Please refer to figure 1 , image 3 as well as Figure 4 Furthermore, a channel cavity 118 is also provided in the sleeve assembly 110 , and the channel...

Embodiment 2

[0077] see figure 1 and figure 2 , an imaging catheter 100 provided in this embodiment is applied to an OCT imaging device for endoscopic imaging. This embodiment is an improvement made on the technical basis of the above-mentioned embodiment 1. Compared with the above-mentioned embodiment 1, the difference lies in:

[0078] In this embodiment, the cannula assembly 110 further includes a single-track guide wire lumen 115 for the guide wire 115 a to pass through, and the single-track guide wire lumen 115 extends along the length direction of the cannula assembly 110 . Wherein, both ends of the monorail guide wire chamber 115 along the length direction are open ends, so that the guide wire 115a passes through the monorail guide wire chamber 115 .

[0079] Further, the single-track guide wire lumen 115 is a single-track design parallel to the channel lumen 118 , instead of the existing rapid exchange design, so as to satisfy the forward imaging scanning of the imaging catheter...

Embodiment 3

[0082] see figure 1 , Figure 4 , Figure 5 as well as Figure 6 , an imaging catheter 100 provided in this embodiment is applied to an OCT imaging device for endoscopic imaging. This embodiment is an improvement made on the technical basis of the above-mentioned embodiment 1 or embodiment 2. Compared with the above-mentioned embodiment 1 or embodiment 2, the difference lies in:

[0083] Please refer to Figure 4 and Figure 5 In this embodiment, the side scanning lens group 1231 includes a spacer lens 1231a and a self-focusing lens 1231b arranged in sequence along the beam propagation direction. It should be noted that the beam described here is the beam emitted by the OCT host. That is to say, the spacer lens 1231a is disposed on the light-incoming side of the self-focusing lens 1231b away from the filling gap 1233 . Wherein, one end of the spacer lens 1231a is fixedly connected to the optical fiber 122, and the other end of the spacer lens 1231a is fixedly connected t...

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Abstract

The invention provides an imaging catheter and an imaging device, and relates to the field of medical instruments. The imaging catheter comprises a sleeve assembly and an optical probe. A connector is arranged at one end of the sleeve assembly, and a channel cavity is formed in the sleeve assembly in the length direction. The optical probe comprises an imaging lens assembly and an optical fiber, the imaging lens assembly is movably arranged in the channel cavity, the optical fiber penetrates through the channel cavity, and the optical fiber is connected with the imaging lens assembly and the connector; the imaging lens assembly comprises a lateral scanning lens group and a forward scanning lens group, the lateral scanning lens group is connected with the optical fiber, the forward scanning lens group is located on the side, away from the optical fiber, of the lateral scanning lens group, and a filling gap communicated with the channel cavity is formed between the forward scanning lens group and the lateral scanning lens group; and the filling gap can be filled with a light-transmitting medium so that a light beam can enter the forward scanning lens group through the lateral scanning lens group. After the imaging catheter is connected with OCT host, lateral and forward imaging scanning can be selectively completed, so that more image information is provided, and the efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an imaging catheter and an imaging device. Background technique [0002] Optical coherence tomography (OCT) is an endoscopic imaging technique, in which endoscopic imaging uses a catheter to collect images, and the imaging method can be lateral helical scanning to image the tissue on the side wall of the catheter; This is a forward scan that images the tissue at the tip of the catheter. [0003] Therefore, in order to obtain more image information during endoscopic imaging, it is necessary to add an additional signal channel or replace a catheter with a different imaging mode for image acquisition, which is complex in operation and low in efficiency. Contents of the invention [0004] In order to overcome the deficiencies in the prior art, the application provides an imaging catheter and an imaging device, which are used to solve the problem that in the prior art, ...

Claims

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Application Information

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IPC IPC(8): A61B1/00A61B1/04A61B1/07
CPCA61B1/00096A61B1/0008A61B1/00183A61B1/043A61B1/07
Inventor 于波康维贾海波候静波代建南邢磊徐晨阳
Owner HARBIN MEDICAL UNIVERSITY
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