CN213309872U

CN213309872U - Optical and acoustic combined probe

Info

Publication number: CN213309872U
Application number: CN202022075946.8U
Authority: CN
Inventors: 李涛; 明良裕; 吴振英
Original assignee: Wuhan Agesi Technology Co ltd
Current assignee: Suzhou Minimally Invasive Argus Medical Technology Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-06-01
Anticipated expiration: 2030-09-21

Abstract

The utility model provides an optics and acoustics combination probe, optics and acoustics combination probe include torsion conduction pipe, substrate, coaxial cable, transducer and fiber lens, the substrate is fixed the one end of torsion conduction pipe, coaxial cable with the transducer is connected, coaxial cable, transducer and fiber lens are located torsion conduction intraduct and pass through the substrate is fixed, the transducer with fiber lens can detect the acoustic signal and the optical signal of same position respectively simultaneously. The utility model discloses an optics and acoustics combination probe can realize detecting the optical signal of the acoustic signal of the interior supersound of blood vessel and optical coherence tomography's formation of image simultaneously to same position through making up blood vessel supersound and optical coherence tomography imaging probe, can exert the advantage that blood vessel supersound pierces through by force and optical coherence tomography imaging resolution ratio is high simultaneously, better carry out disease diagnosis.

Description

Optical and acoustic combined probe

Technical Field

The utility model belongs to the field of medical equipment, specifically, relate to an optics and acoustics combination probe.

Background

Intravascular ultrasound (IVUS) refers to a medical imaging technique using a special catheter with an ultrasound probe connected to the end, in combination with non-invasive ultrasound and invasive catheter techniques. The intravascular ultrasound is to place a miniaturized ultrasonic transducer into a cardiovascular cavity through a cardiac catheter to display the cardiovascular section morphology and/or blood flow graph, and mainly comprises two aspects of an ultrasonic imaging technology and Doppler blood flow measurement. This technique allows ultrasound techniques, such as piezoelectric conduction or ultrasound transducers, to be used to examine the condition of the inner wall of the blood vessel.

Optical Coherence Tomography (OCT) is a high resolution (10 micron) vessel structure imaging technique. In intracardiac OCT (IV-OCT), a catheter is inserted into an artery to acquire a 10 micron resolution profile and three dimensional image, enabling visualization of detailed microstructural features of the arterial vessel wall. Intracardiac OCT has been shown to be able to distinguish various relevant clinical features including the presence of lipids, inflammation, calcification, clotting (thrombus), etc. The information captured in three-dimensional space by OCT can effectively describe the degree and type of vascular lesion, thus being used as important data for guiding interventional therapy. In addition OCT can also be used to image vascular lesions that have not yet caused a thrombus. Treatment of these pre-coronary lesions is a promising concept for improving the incidence and mortality of CAD.

Intravascular ultrasound (IVUS) and Optical Coherence Tomography (OCT) can be used for detection of coronary artery intervention, guidance of stent implantation and assessment of post-operative stent implantation, both of which are long in coronary intervention and play complementary roles. IVUS is superior to OCT in evaluating plaque burden, guidance for left trunk bifurcation lesions, positive or negative reconstruction of vessel walls, perivascular lesions (hematomas, perforations), etc. IVUS is relatively safe and convenient because it is simpler to operate than OCT and does not require the occlusion of proximal coronary blood flow. OCT is the current intravascular imaging technique with the highest resolution, and is superior to IVUS in identification and evaluation of plaque types, intimal injury and thrombosis of blood vessels, stent attachment, intimal coverage evaluation, and the like, but inferior to IVUS in penetrability and unfavorable for adventitial observation.

Disclosure of Invention

The not enough that IVUS and OCT exist to prior art, the utility model aims to solve the problem that an optics and acoustics combination probe is provided, fuses IVUS and OCT probe for intervene in the operation, avoided IVUS's resolution ratio not high enough and OCT depth of penetration shortcoming not big enough, both advantages are complementary, can realize clear formation of image, better disease diagnosis carries out.

The utility model provides a study and acoustics combination probe.

Particularly, the utility model relates to an aspect as follows:

1. the optical and acoustic combined probe is characterized by comprising a torsion conduction tube, a substrate, a coaxial cable, a transducer and a fiber lens, wherein the substrate is fixed at one end of the torsion conduction tube, the coaxial cable is connected with the transducer, the coaxial cable, the transducer and the fiber lens are positioned in the torsion conduction tube and fixed through the substrate, and the transducer and the fiber lens can simultaneously detect acoustic signals and optical signals at the same position respectively.

2. The optical and acoustic combined probe according to item 1, wherein a line connecting the center of the light exit surface of the fiber lens and the center of the transducer is perpendicular to the extending direction of the torsion conductive pipe.

3. The combined optical and acoustic probe of claim 1, wherein the substrate is provided with a light transmitting slot proximate to the fiber lens for transmitting optical signals.

4. The combined optical and acoustic probe of claim 1, wherein the substrate is provided with a sound transmission slot proximate the transducer for transmitting acoustic signals.

5. The combined optical and acoustic probe of item 1, wherein the fiber lens is a cylindrical lens.

6. The combined optical and acoustic probe of claim 5, wherein a lens protective sleeve is disposed outside the fiber lens.

7. The combined optical and acoustic probe of item 6, wherein air is between the fiber lens and the lens protective sheath.

8. The combined optical and acoustic probe according to item 1, wherein the signal wire and the shield wire of the coaxial cable are connected to both end faces of the transducer by conductive adhesives, respectively.

9. The combined optical and acoustic probe of item 1, wherein the torsion conductive tube is a spring.

10. The combined optical and acoustic probe of item 1, wherein the substrate is secured to the torsion conductive tube by welding.

The utility model discloses an optics and acoustics combination probe can realize detecting IVUS's acoustic signal and OCT's optical signal simultaneously to same position through making up IVUS and OCT probe, can exert IVUS simultaneously and pierce through the advantage that strong and OCT resolution ratio is high, better disease diagnosis carries out.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of the combined optical and acoustic probe according to the present invention;

fig. 2 is a schematic perspective view of the combined optical and acoustic probe according to the present invention;

FIG. 3 is a top view of the combined optical and acoustic probe of the present invention;

fig. 4 is a schematic diagram of the acoustic and optical signals of the combined optical and acoustic probe of the present invention.

Reference numerals:

1-torsion conduction tube, 2-substrate, 3-coaxial cable, 4-transducer, 5-fiber lens, 6-lens protective sleeve, 7-light transmission groove and 8-sound transmission groove.

Detailed Description

The present invention will be further described with reference to the following examples, which are intended to be illustrative and explanatory only and are not restrictive of the invention.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. Although methods and materials similar or equivalent to those described herein can be used in experimental or practical applications, the materials and methods are described below. In case of conflict, the present specification, including definitions, will control, and the materials, methods, and examples are illustrative only and not intended to be limiting. The present invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

The utility model provides an optics and acoustics combination probe. As shown in fig. 1-3, the combined optical and acoustic probe includes a torsion conducting tube 1, a substrate 2, a coaxial cable 3, a transducer 4 and a fiber lens 5, the substrate 2 is fixed at one end of the torsion conducting tube 1, the coaxial cable 3 is connected to the transducer 4, the coaxial cable 3, the transducer 4 and the fiber lens 5 are located inside the torsion conducting tube and fixed by the substrate 2, and the transducer 4 and the fiber lens 5 can simultaneously detect an acoustic signal and an optical signal at the same position, respectively.

The torsion conducting tube 1 provides torsion for the combined probe, and may be any conducting tube suitable for medical detection and capable of providing torsion, and in a specific embodiment, the torsion conducting tube 1 is a spring.

The size of the substrate 2 is matched with that of the torsion conduction tube 1 and is used for fixing the transducer 4 and the fiber lens 5, so that the positions of the transducer 4 and the fiber lens 5 in the torsion conduction tube 1 are relatively fixed, and therefore when the torsion conduction tube 1 rotates or moves in a tube cavity, the combined probe can be guaranteed to be capable of simultaneously detecting acoustic signals and optical signals at the same position all the time. The transducer 4 and the fiber lens 5 can be fixed to the substrate 2 by bonding or other feasible methods. The material of the substrate 2 should have a certain hardness and be corrosion resistant, and may be, for example, an alloy, stainless steel, copper, etc. The substrate 2 may be fixed to one end of the torsion conducting tube 1 by any feasible means such as gluing, welding, snapping, etc. In a preferred embodiment, the substrate 2 and the torsion conducting tube 1 are fixed by welding.

Further, as shown in fig. 2, the substrate 2 is further provided with a light transmitting groove 7 for transmitting an optical signal. The light transmitting groove 7 is located close to the fiber lens 5 so that the light emitted from the fiber lens 5 can be transmitted out to the lumen to be detected. The shape and size of the light transmission groove 7 are not limited as long as there is no obstruction to the transmitted optical signal.

Further, as shown in fig. 1 and 3, the substrate 2 is provided with a sound transmission groove 8 for transmitting an acoustic signal. The acoustic slot 8 is located close to the transducer 4 so that acoustic signals can be transmitted between the lumen under test and the transducer 4. The shape and size of the sound transmission groove 8 are not limited as long as there is no obstruction to the transmitted acoustic signal.

The coaxial cable 3 is a coaxial cable used for optical and acoustic detection in the related art, and includes a signal line and a shield line. The transducer 4 is a device for interconversion between electrical and acoustic energy, and ultrasound transducers are used in intravascular ultrasound technology. The coaxial cable 3 and the transducer 4 are used to detect acoustic signals, which in intravascular ultrasound technology are ultrasonic signals. The fiber lens 5 is used for detecting optical signals.

The fiber lens 5 may be a spherical lens or a cylindrical lens. In a preferred embodiment, the fiber lens 5 is a cylindrical lens. When the optical fiber lens 5 is a cylindrical lens, a lens protection sleeve 6 is arranged on the outer side of the cylindrical lens and used for protecting the lens to prevent the lens from being polluted, and air is filled between the optical fiber lens 5 and the lens protection sleeve 6.

The transducer 4 and the fiber lens 5 can simultaneously detect an acoustic signal and an optical signal at the same position, respectively, and the transducer 4 can detect an acoustic signal at a certain position at a certain time, and the fiber lens 5 can detect an optical signal at the same position at the same time. In one embodiment, as shown in fig. 4, a connection line between the center of the light exit surface of the fiber lens 5 and the center of the transducer is perpendicular to the extending direction of the torsion conductive pipe 1. This ensures that the transducer 4 and the fiber lens 5 can simultaneously detect acoustic signals and optical signals at the same position, respectively. Further acoustic and optical signals detected by the combined optical and acoustic probe can be imaged separately for diagnosis.

The coaxial cable 3 and the transducer 4 are connected in such a manner that a signal line and a shield line of the coaxial cable 3 are connected to both end surfaces of the transducer 4 through conductive adhesives, respectively. The two end faces are shown in fig. 1, which are respectively an end face close to the fiber lens 5 and an end face far away from the fiber lens 5.

Specifically, the optical and acoustic combined probe of the present invention can be prepared by the following steps: firstly, the torsion conduction tube 1 and the substrate 2 are welded and fixed, the fiber lens 5 and the coaxial cable 3 are respectively inserted into the tube cavity of the torsion conduction tube 1, and the position of the light emergent surface of the fiber lens 5 is adjusted to be aligned to the light transmitting groove 7 of the substrate 2. The lens protection sleeve 6 is then mounted on the fiber lens 5 and then fixed to the substrate 2 to be stabilized. The coaxial cable 2 is passed through the substrate, the insulating layer is stripped, and the signal line and the shield line are separated. The signal line and the shield line of the coaxial cable 3 are respectively and correspondingly adhered to the conductive layers of the upper surface and the lower surface of the transducer 4 by using conductive adhesive. And then UV glue is used for coating the periphery of the transducer 4 to play the roles of fixing and insulating the signal wire and the shielding wire. The optical and acoustic combined probe of the present invention can be obtained.

The utility model discloses an optics and acoustics combination probe simple structure, ingenious combines the optical probe with the acoustics probe of the interior supersound of blood vessel and the formation of image of optical coherence tomography, can overcome the resolution ratio of the interior supersound of blood vessel not high enough and the optics coherence tomography depth of penetration shortcoming not big enough, realize detecting the acoustics signal of the interior supersound of blood vessel and the optical signal of the formation of image of optical coherence tomography simultaneously to same position, can exert the advantage that the interior supersound of blood vessel pierces through by force and the formation of image resolution ratio of optical coherence tomography is high simultaneously. Thereby providing more accurate detection results and being beneficial to better disease diagnosis.

While embodiments of the present application have been described above in connection with specific embodiments thereof, the present application is not limited to the above-described embodiments and fields of application, which are intended to be illustrative, instructive, and not restrictive. Those skilled in the art, having the benefit of this disclosure, may effect numerous modifications thereto and changes may be made without departing from the scope of the invention as defined by the appended claims.

Claims

1. an optical and acoustic combination probe, is characterized in that, described optical and acoustic combination probe comprises torsion conduction tube, substrate, coaxial cable, transducer and optical fiber lens, and described substrate is fixed on described torsion conduction. One end of the tube, the coaxial cable is connected with the transducer, the coaxial cable, the transducer and the fiber optic lens are located inside the torsion transmission tube and fixed by the substrate, the transducer and the The fiber optic lens can detect the acoustic signal and the optical signal at the same position at the same time.

2 . The combined optical and acoustic probe according to claim 1 , wherein the line connecting the center of the light-emitting surface of the optical fiber lens and the center of the transducer is perpendicular to the extending direction of the torsion tube. 3 .

3 . The optical and acoustic combined probe according to claim 1 , wherein the substrate is provided with a light transmission groove, and the light transmission groove is close to the optical fiber lens for transmitting optical signals. 4 .

4. The optical and acoustic combination probe according to claim 1, wherein the substrate is provided with a sound transmission groove, and the sound transmission groove is close to the transducer for transmitting acoustic signals.

5 . The optical and acoustic combined probe according to claim 1 , wherein the optical fiber lens is a cylindrical lens. 6 .

6 . The optical and acoustic combined probe according to claim 5 , wherein a lens protective cover is provided on the outer side of the optical fiber lens. 7 .

7 . The optical and acoustic combination probe according to claim 6 , wherein air is between the optical fiber lens and the lens protective sleeve. 8 .

8 . The optical and acoustic combined probe according to claim 1 , wherein the signal wire and the shield wire of the coaxial cable are respectively connected to the two end faces of the transducer through conductive glue. 9 .

9 . The optical and acoustic combined probe according to claim 1 , wherein the torsion transmission tube is a spring. 10 .

10 . The optical and acoustic combined probe according to claim 1 , wherein the substrate is fixed to the torsion conduction tube by welding. 11 .