CN113171051A - Miniature endoscopic imaging probe - Google Patents

Abstract

The invention discloses a miniature endoscopic imaging probe, which comprises a shell, wherein two ends of the shell are open, a reflection module for imaging is arranged in the shell, a transmission module for receiving and guiding out information is arranged at the output end of the reflection module, a gradient module for converting information is arranged between the receiving module and the reflection module, and a light supplementing module is arranged on one side of the shell, which is close to the reflection module. This technical scheme passes to the information that the reflection module was observed after gathering the module set that multiple functions is different to the acceptance terminal, for medical personnel provide the window of observing the treatment, timely cures patient's disease, prevents that patient's state of an illness from diffusing, influences patient's healthy. When in actual use, the casing and the part of setting in the casing send into patient's focus district through the esophagus, enter into patient's focus district back when the casing, each part of setting in the casing carries out work under medical personnel's control, arrives and transmits the various problem perceptions in patient's focus district to the external world, supplies the doctor to observe.

Description

Miniature endoscopic imaging probe

Technical Field

The invention relates to the field of medical auxiliary instruments, in particular to a miniature endoscopic imaging probe.

Background

Optical Coherence Tomography (OCT) has the technical advantages of high resolution and high imaging speed, and can provide three-dimensional structural information of biological tissues, and the technical characteristics of non-contact and non-invasive property make the OCT more suitable for endoscopic imaging. The Volume Laser Endoscope (VLE) is a second generation optical coherence tomography (oct) device, and can generate cross-sectional images of the gastrointestinal tract lumen with high resolution and wide field of view. It also requires the use of endoscopic imaging equipment.

Barrett's Esophagus (BE) refers to a pathological manifestation replaced by columnar epithelium metaplastic from normal stratified squamous epithelium of lower esophageal segment, and is also a precancerous lesion of Esophageal Adenocarcinoma (EAC), and diagnosis of the disorder depends mainly on endoscopy. The method for sending the endoscope into the human body by utilizing the micro equipment in the prior art realizes the three-dimensional imaging of the internal organs of the human body, and well solves the technical problems of detection delay, large error and the like in the traditional endoscopy.

However, in the prior art, a micro imaging probe of an endoscopic imaging system irradiates signal light onto a tissue and collects backscattered light from the tissue within a certain depth. Adopt this kind of equipment can not be fine observe the timely transmission of information to the external world of gathering with the endoscope, can not provide good observation for the doctor, then can not quick judgement patient's state of an illness, and current endoscope can only observe the local of esophagus focal zone, and the observation surface is narrow, can not observe the particular case of other positions of esophagus, leads to doctor's judgement possible error then, influences patient's treatment then.

Disclosure of Invention

The present invention is directed to overcome the problems of the background art mentioned above, and provides a miniature endoscopic imaging probe, which avoids the problem that the current endoscope cannot truly reflect the specific condition of the focal region of the patient during observation.

The purpose of the invention is mainly realized by the following technical scheme:

the utility model provides an imaging probe is peeped in to miniature, includes the casing, and the both ends of casing are all opened, are equipped with the reflection module that is used for the video picture in the casing, and the output of reflection module is equipped with the transmission module that is used for accepting and deriving the message, accepts the gradient module that is equipped with conversion information between module and the reflection module, and one side that the casing is close to the reflection module is equipped with the light filling module.

The micro imaging probe of the existing endoscopic imaging system firstly irradiates signal light on tissues and then collects backscattered light from the tissues in a certain depth. Adopt this kind of equipment can not be fine observe the timely transmission of information to the external world of gathering with the endoscope, the structure at its visual angle leads to the observation face narrow, can not provide good observation for the doctor, the doctor need remove other positions many times and just can realize detecting, actually increased working strength, and too much picture conversion causes visual fatigue easily, causes the picture to leak and sees, then can not quick judgement patient's the state of an illness, need carry out a lot of observations, a little careless then lead to doctor's judgement probably to be wrong, then influence patient's treatment. The miniature endoscopic imaging probe designed by the scheme can well solve the problem, greatly expands the visual angle of a single picture, enables a doctor to stay on the picture to observe a large-area esophagus position, comprises the whole esophagus focal region and other esophagus positions, enables the doctor to have enough time, enough observation area and enough information to judge, does not need to repeatedly convert the picture to waste time and energy, and enables the patient to be treated accurately.

Furthermore, the reflection module comprises a reflection micro prism and two fixing snap rings, the reflection micro prism is detachably arranged at the end part of the shell through the two fixing snap rings, and part of the reflection micro prism protrudes out of the end part of the shell.

Further, the gradient module includes a plurality of gradient index lens, and a plurality of gradient index lens all can be dismantled and set up in the casing.

Further, the transmission module comprises an optical fiber and a protection tube, the optical fiber is connected with the output end of the gradient refractive index lens, the protection tube is sleeved on the optical fiber, the local part of the shell is embedded into the protection tube, and a limiting part used for preventing the protection tube from being separated from the shell is arranged on the outer wall of the shell.

Furthermore, the shell is formed by splicing two pipelines, and a rotating assembly used for adjusting the relative positions of the two pipelines is arranged at the joint of the two pipelines.

Further, the runner assembly includes two driving motor, loading board, worm and gear, bear frame and arbitrary one the inner wall connection of pipeline, bear and be equipped with two branch pieces on bearing the relative lateral wall of another pipeline, the worm rotates and sets up two between the branch piece, it is equipped with the mounting bracket to rotate on the branch piece, the gear rotates and sets up on the mounting bracket, just the gear with the worm meshing, be equipped with branch in the pivot of gear, be equipped with the connecting plate on the branch, the connecting plate with another the pipe connection, two the driving motor sets up and all sets up on the loading board, arbitrary one driving motor's output with the mounting bracket is connected, another driving motor's output with the pivot of worm is connected.

Furthermore, the locating part includes bellows and first spacing ring and second spacing ring, and the arbitrary one end and the casing of bellows are connected, and the other end and the protection tube of bellows are connected, first spacing ring with the end connection of casing, the second spacing ring with the protection tube is connected.

Furthermore, a plurality of buffer springs are arranged between the first limiting ring and the second limiting ring.

In conclusion, compared with the prior art, the invention has the following beneficial effects:

the utility model provides an imaging probe is peeped in to miniature, includes the casing, and the both ends of casing are all opened, are equipped with the reflection module that is used for the video picture in the casing, and the output of reflection module is equipped with the transmission module that is used for accepting and deriving the message, accepts the gradient module that is equipped with conversion information between module and the reflection module, and one side that the casing is close to the reflection module is equipped with the light filling module. This technical scheme passes to the information that the reflection module was observed after gathering the module set that multiple functions is different and accepts the terminal, for medical personnel provide the window of observing the treatment, timely cures patient's disease, prevents that patient's state of an illness from diffusing, influences patient's healthy.

When in actual use, casing and the reflection module of setting in the casing, transmit the module, accept module, gradient module and light filling module and send into patient's focus district through the esophagus, enter into patient's focus district back when the casing, each part that sets up in the casing carries out work under medical personnel's control, arrives patient's focus district's various problem perceptions, timely transmission to the external world, supplies the doctor to observe. Reflection module, transmission module, accept module, gradient module and light filling module and place in the casing, guaranteed that this device is in the esophagus center when the formation of image. The reflection module, the transmission module, the receiving module, the gradient module and the light supplementing module are sealed in the shell, so that the shell can be prevented from carrying a large amount of bacteria to influence the continuous use of the next user when the shell reaches a focus area through the esophagus of a patient. In actual use, the device is small in size, can adapt to balloon catheters passing through different guide wires, and greatly reduces the cost and complexity of the device in use.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a front sectional view of the present invention.

Fig. 2 is a schematic sectional view showing a partial structure of the front view structure of the present invention.

Fig. 3 is a schematic structural view of a rotating assembly according to the present invention.

The names corresponding to the reference numbers in the drawings are as follows:

1. a reflective microprism; 2. a housing; 3. a connecting plate; 4. a mounting frame; 5. a drive motor; 6. a protective sleeve; 7. protecting the tube; 8. a second stop collar; 9. a first limit ring; 10. a bellows; 11. a buffer spring; 12. a carrier plate; 13. a worm; 14. supporting a piece; 15. a strut; 16. a gear; 17. a gradient index lens; 18. an optical fiber.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the preferred embodiments of the present invention is given with reference to the accompanying examples and drawings, and the exemplary embodiments and descriptions thereof are only for explaining the present invention and are not to be construed as limiting the present invention.

Example (b):

as shown in fig. 1-3, a micro endoscopic imaging probe comprises a housing 2, both ends of the housing 2 are open, a reflection module for displaying images is arranged in the housing 2, a transmission module for receiving and guiding out information is arranged at an output end of the reflection module, a gradient module for converting information is arranged between the reception module and the reflection module, and a light supplementing module is arranged on one side of the housing 2 close to the reflection module. This technical scheme passes to the information that the reflection module was observed after gathering the module set that multiple functions is different to the acceptance terminal, for medical personnel provide the window of observing the treatment, timely cures patient's disease, prevents that patient's state of an illness from diffusing, influences patient's healthy.

When in actual use, casing 2 and the reflection module of setting in casing 2, transmit the module, accept module, gradient module and light filling module and send into patient's focus district through the esophagus, enter into patient's focus district back when casing 2, each part that sets up in casing 2 carries out work under medical personnel's control, arrives patient's focus district's various problem perceptions, timely transmission to the external world, supplies the doctor to observe. Reflection module, transmission module, accept module, gradient module and light filling module and place in casing 2, guaranteed that this device is in the esophagus center when the formation of image. Reflection module, transmission module, accept module, gradient module and light filling module and seal and can avoid casing 2 to reach the focal region through patient's esophagus in casing 2, carry a large amount of bacterium to influence next user's continuation and use. In actual use, the device is small in size, can adapt to balloon catheters passing through different guide wires, and greatly reduces the cost and complexity of the device in use.

Preferably, the diameter of the guide wire inside the balloon catheter aimed by the invention is 0.9mm, the balloon catheter can allow 1300nm signal light to pass through with small loss, and stable balloon internal air pressure is provided.

Preferably, the light filling subassembly includes 6 LED lamps, and 6 LED lamps equidistance set up the tip at casing 2. And it is close to the reflective microprisms 1.

In some embodiments of the present invention, the reflection module comprises a reflection microprism 1 and two fixing snap rings, the reflection microprism 1 is detachably disposed at an end of the housing 2 through the two fixing snap rings, and a part of the reflection microprism 1 protrudes from the end of the housing 2. Two fixed snap rings can fix reflection micro prism 1 in casing 2, prevent that reflection micro prism 1 from rocking or removing in casing 2 and influencing reflection micro prism 1's real refraction effect.

Preferably, the outer wall of each fixed clamping ring is provided with an external thread, the inner wall of the passenger is provided with an internal thread matched with the external thread, each fixed clamping ring is provided with a magnetic pole, and the relative positions of the two fixed clamping rings can be adjusted by using a special tool.

Preferably, the fixing snap rings have an inner diameter of 0.6mm, an outer diameter of 0.8mm, and a length of 1.5mm, and the two fixing snap rings can fix the reflective microprism 1 in the housing 2.

Preferably, the reflective micro-prism 1 is a right-angle prism, the length of the right-angle side is 0.5mm, and the reflective inclined plane is plated with an aluminum film and can reflect the signal light at an angle of 90 degrees.

In some embodiments of the present invention, the gradient module comprises a plurality of gradient index lenses 17, and each of the plurality of gradient index lenses 17 is detachably disposed in the housing 2. The gradient module can transmit the signal transmitted by the reflection micro prism 1 to the next stage transmission module after being converged by a plurality of gradient refractive index lenses 17. Namely, the arranged gradient refractive index lenses 17 can focus the reflecting micro-prisms 1 clearly and transmit the focused reflecting micro-prisms.

Preferably, each gradient index lens 17 is also removably secured by two securing clasps.

Preferably, the distance between the exit end face of the single-mode fiber 18 and the gradient index lens 17 in the present invention is 0.75mm, and the distance between the two gradient index lenses 17 is 0.3 mm.

Preferably, the gradient index lens 17 of the present invention has an outer diameter of 0.5mm, can be adapted to the size of the inner diameter of the balloon catheter guidewire, and also leaves a certain assembly redundancy; the gradient index lens 17 can converge light with wavelength of 1300-1550nm, and light beams can be converged to different degrees by adjusting the distance between the two gradient index lenses 17; the gradient index lens 17 of (1.7) mm in length, and the front and rear surfaces are perpendicular to the optical axis.

In some embodiments of the present invention, the transmission module includes an optical fiber 18 and a protective tube 7, the optical fiber 18 is connected to the output end of the gradient index lens 17, the protective tube 7 is sleeved on the optical fiber 18, and a part of the housing 2 is embedded in the protective tube 7, and a limiting member for preventing the protective tube 7 from being separated from the housing 2 is disposed on the outer wall of the housing 2.

Preferably, in the present invention, the air gap between the exit end surface of the optical fiber 18 and the gradient index lens 17 is 0.75mm, and the air gap between the two gradient index lenses 17 is 0.3 mm. The reflective microprisms 1 are adhesively attached to the rear surface of the gradient index lens 17 and have a size of 0.5mm, and when glued, ensure that the right angle surface of the glue is perpendicular to the optical axis and the center should be aligned with the center of the gradient index lens 176.

During actual observation, probe light with the wavelength of 1300nm is accessed through the single-mode optical fiber 18 and enters the terminal optical imaging probe part of the endoscopic OCT system after being emitted, the probe light enters the first surface of the first gradient refractive index lens 17 after passing through an air gap of 0.75mm, and the first gradient refractive index lens 17 can firstly converge the light emitted from the single-mode optical fiber 18; the light emitted from the first gradient index lens 17 passes through an air gap of 0.3mm and enters the second gradient index lens 17, and the gradient index lens 17 can perform secondary convergence on the converged light to generate a working distance of 9.44 mm; the rear surface of the second gradient index lens 17 is directly connected to the right-angled surface of the end-reflecting microprism so that the twice-focused light reaching the desired working distance is reflected in a 90 ° direction.

In some embodiments of the present invention, the housing 2 is formed by splicing two pipes, and a rotating assembly for adjusting the relative positions of the two pipes is arranged at the joint of the two pipes. The housing 2 can have a moving space by splicing two pipes through the housing 2 even if the reflective microprism 1 has a larger observation space. A better view of the focal zone of the patient is obtained.

In some embodiments of the invention, the rotating assembly comprises two drive motors 5, a carrier plate 12, a worm 13 and a gear 16, the bearing frame is connected with the inner wall of any one of the pipelines, two supporting pieces 14 are arranged on the side wall of the bearing frame opposite to the other pipeline, the worm 13 is rotatably arranged between the two support pieces 14, the support pieces 14 are rotatably provided with a mounting rack 4, the gear 16 is rotatably arranged on the mounting rack 4, the gear 16 is meshed with the worm 13, a support rod 15 is arranged on a rotating shaft of the gear 16, be equipped with connecting plate 3 on branch 15, connecting plate 3 and another the pipe connection, two driving motor 5 sets up and all sets up on the loading board 12, arbitrary one driving motor 5's output with mounting bracket 4 is connected, another driving motor 5's output with worm 13's pivot is connected. When in actual use, medical personnel carry out outage circular telegram control to two driving motor 5 through external power, then control the motion of worm 13 and mounting bracket 4, realize then that the pipeline that is equipped with reflection microprism 1 is similar spherical circular motion relatively with another pipeline, then observe and transmit the various problems in focus district to the external world, make the judgement when supplying the doctor to treat.

Preferably, a protective sleeve 6 is provided between the two pipes to increase the tightness between the pipes. Prevent that liquid from getting into the pipeline and influencing the use accuracy of this device.

In some embodiments of the present invention, the limiting member comprises a corrugated tube 10, and a first limiting ring 9 and a second limiting ring 8, wherein any end of the corrugated tube 10 is connected to the housing 2, the other end of the corrugated tube 10 is connected to the protecting tube 7, the first limiting ring 9 is connected to the end of the housing 2, and the second limiting ring 8 is connected to the protecting tube 7. The bellows 10 is provided to extend the length of the protection tube 7 and the housing 2, and to seal the joint between the housing 2 and the protection tube 7. The first limit ring 9 and the second limit ring 8 can prevent the protection tube 7 from falling off and contacting the shell 2, and the using effect of the device is affected.

In some embodiments of the present invention, a plurality of buffer springs 11 are disposed between the first position-limiting ring 9 and the second position-limiting ring 8. Through be equipped with a plurality of buffer spring 11 between first spacing ring 9 and second spacing ring 8 and can increase the life of this device, but also can prevent long-term pulling bellows 10 from causing the long-term tired work of bellows 10 to lead to then the sealed effect of this device not good, influence the life of this device.

The above embodiments are merely exemplary embodiments of the present invention, and it should be understood that the present invention is not limited to the above embodiments, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (8)

1. The utility model provides a miniature imaging probe of peeping, its characterized in that, includes casing (2), the both ends of casing (2) are all opened, be equipped with the reflection module that is used for the video picture in casing (2), the output of reflection module is equipped with the transmission module that is used for accepting and deriving the message, accept the module with be equipped with the gradient module of conversion information between the reflection module, casing (2) are close to one side of reflection module is equipped with the light filling module.

2. The micro-endoscopic imaging probe according to claim 1, wherein the reflection module comprises a reflection micro-prism (1) and two fixing snap rings, the reflection micro-prism (1) is detachably disposed at the end of the housing (2) through the two fixing snap rings, and part of the reflection micro-prism protrudes from the end of the housing (2).

3. The miniature endoscopic imaging probe according to claim 1, wherein said gradient module comprises a plurality of gradient index lenses (17), said plurality of gradient index lenses (17) being removably disposed within said housing (2).

4. The micro-endoscopic imaging probe according to claim 3, wherein the transmission module comprises an optical fiber (18) and a protection tube (7), the optical fiber (18) is connected with the output end of the gradient index lens (17), the protection tube (7) is sleeved on the optical fiber (18), a part of the housing (2) is embedded in the protection tube (7), and a limit member for preventing the protection tube (7) from being separated from the housing (2) is arranged on the outer wall of the housing (2).

5. The miniature endoscopic imaging probe according to claim 1, wherein said housing (2) is formed by splicing two tubes, and a rotating assembly for adjusting the relative positions of the two tubes is provided at the junction of the two tubes.

6. The endoscopic micro imaging probe according to claim 5, wherein the rotating assembly comprises two driving motors (5), a carrying plate (12), a worm (13) and a gear (16), the carrying plate is connected to an inner wall of any one of the pipes, two supporting pieces (14) are provided on a side wall of the carrying plate opposite to the other pipe, the worm (13) is rotatably disposed between the two supporting pieces (14), a mounting frame (4) is rotatably disposed on the supporting pieces (14), the gear (16) is rotatably disposed on the mounting frame (4), the gear (16) is engaged with the worm (13), a supporting rod (15) is provided on a rotating shaft of the gear (16), a connecting plate (3) is provided on the supporting rod (15), the connecting plate (3) is connected to the other pipe, the two driving motors (5) are disposed on the carrying plate (12), the output end of any one of the driving motors (5) is connected with the mounting rack (4), and the output end of the other one of the driving motors (5) is connected with the rotating shaft of the worm (13).

7. The miniature endoscopic imaging probe according to claim 4, wherein said stop member comprises a bellows (10) and a first stop ring (9) and a second stop ring (8), wherein either end of the bellows (10) is connected to the housing (2), the other end of the bellows (10) is connected to the protective tube (7), the first stop ring (9) is connected to an end of the housing (2), and the second stop ring (8) is connected to the protective tube (7).

8. The miniature endoscopic imaging probe according to claim 7, wherein a plurality of buffer springs (11) are provided between the first stop collar (9) and the second stop collar (8).

Images