CN114521862A

CN114521862A - Novel combined type superfine bronchoscope

Info

Publication number: CN114521862A
Application number: CN202210246759.2A
Authority: CN
Inventors: 柯明耀; 张美华
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-05-24

Abstract

The invention discloses a novel combined type superfine bronchoscope, which comprises a fiber optic scope and a sheath tube component, wherein the fiber optic scope is provided with a first optical fiber and a second optical fiber; the fiber optic scope comprises a fiber optic scope body, an observation ocular, a light guide joint, a tube fixing seat, an insertion tube, an optical fiber outer tube, an optical fiber inner tube, a light source optical fiber, an image transmission optical fiber and an imaging objective lens, wherein a sheath tube component comprises a snake bone controller and a sheath tube.

Description

Novel combined type superfine bronchoscope

Technical Field

The invention relates to the technical field of bronchoscopes, in particular to a novel combined type superfine bronchoscope.

Background

Peripheral lesions of the lung, especially pulmonary nodules, are of diverse causes and are the main manifestation of early lung cancer and localized lung infection. With the popularization of CT physical examination and clinical examination, more and more cases of lung peripheral lesions are discovered. Taking a sample of a lesion part through non-surgical biopsy for pathological cell or etiology examination is a main means for determining the lung peripheral focus, and has great clinical value and social benefit.

The bronchoscopy biopsy is a main non-operative biopsy method, and the diagnosis positive rate of the bronchoscopy biopsy to the lung peripheral lesion is obviously improved along with the progress of the guided bronchoscopy technology, and the current guided bronchoscopy technology comprises a thin/superfine bronchoscope, radial ultrasound, EBUS-GS, virtual or electromagnetic navigation, CBCT and the like.

Wherein, the thin/superfine bronchoscope can reach peripheral bronchus and can combine radial ultrasound, EBUS-GS and carry out various biopsy material taking, thereby having great clinical application value. However, the current thin/superfine bronchoscopes still have the types which can be used for taking materials by biopsy, the outer diameters of the types are not thin enough and are all more than 2.8mm, and the superfine bronchoscopes with the outer diameters smaller than 2.8mm do not have biopsy channels and cannot be used for taking materials by biopsy.

In view of the high incidence of the lung peripheral lesion and the importance of definite etiology, in order to improve the accuracy of bronchoscope biopsy material taking and the positive diagnosis rate, a novel superfine bronchoscope which has a large enough passage, is convenient for ultrasonic exploration and biopsy material taking, has a thinner outer diameter and can reach a farther and thinner airway at the periphery needs to be researched.

In view of the above, the present inventors have made extensive studies and research on the various defects and inconveniences caused by the incomplete structural design of the bronchoscope, and have developed and designed the present invention.

Disclosure of Invention

The invention aims to provide a novel combined type superfine bronchoscope with a large channel and a thin outer diameter.

In order to achieve the above purpose, the solution of the invention is:

a novel combined type superfine bronchoscope comprises a fiberscope and a sheath tube component; the fiber optic comprises an optic body, an observation eyepiece, a light guide joint and a tube fixing seat, wherein the observation eyepiece and the tube fixing seat are respectively arranged at two ends of the optic body, and the light guide joint is arranged on the side wall of the optic body; one end of the insertion pipe is installed on the pipe fixing seat, the other end of the insertion pipe is a free end, and the outer diameter of the insertion pipe is 0.78 mm; the optical fiber outer tube is inserted into the insertion tube, and one end of the optical fiber outer tube facing the optical lens body is connected to the light guide connector; the optical fiber inner tube is inserted into the optical fiber outer tube, and one end of the optical fiber inner tube facing the optical lens body is connected to the observation eyepiece; the light source optical fiber is matched between the optical fiber outer tube and the optical fiber inner tube, and one end of the light source optical fiber facing the optical lens body is connected to the light guide joint; the image transmission optical fiber is matched in the optical fiber inner tube, and one end of the image transmission optical fiber facing the optical lens body is connected to the observation ocular lens; the imaging objective lens is matched at the tail end of the optical fiber inner tube and is connected with the image transmission optical fiber; the snake bone controller is provided with an optical lens joint, an instrument joint and a sheath tube inlet channel, and the optical lens joint and the instrument joint are communicated with the sheath tube inlet channel; one end of the sheath tube is connected to the snake bone controller and communicated with the sheath tube entrance channel, the other end of the sheath tube is a free end, the outer diameter of the sheath tube is 2mm, and the inner diameter of the sheath tube is 1.5 mm; still be equipped with snake bone control rod and controller main part on the snake bone controller, install crooked snake bone on the sheath pipe, the snake bone control rod passes through the controller main part and is connected with crooked snake bone to through crooked snake bone control sheath pipe.

The light source optical fiber is composed of a plurality of bundles of optical fibers, and the bundles of optical fibers are tightly arranged along the inner periphery of the optical fiber outer tube.

The light guide connector comprises a connector shell, one end of the connector shell is arranged on the optical lens body, and the other end of the connector shell is provided with a connector connected with the light source equipment; the upper connecting seat is arranged in the connector shell, and a funnel light-gathering hole communicated with the connector is arranged in the upper connecting seat; and the lower connecting seat is arranged in the connector shell and is positioned below the upper connecting seat, a conical wire collecting hole is arranged in the lower connecting seat, one end of the conical wire collecting hole, which is small in aperture, is arranged opposite to one end of the funnel wire collecting hole, and the light source optical fiber is connected to the lower connecting seat.

One end of the optical lens body is provided with an ocular channel and a lens groove positioned at the end part of the ocular channel; the observation ocular comprises an ocular mounting seat, the ocular mounting seat is fixed in the optical lens body, and the image transmission optical fiber is connected to the ocular mounting seat; one end of the eyepiece main body is arranged on the eyepiece mounting seat and positioned at the front end of the image transmission optical fiber, and the other end of the eyepiece main body extends into the eyepiece channel; a protective lens fitted within the lens groove; and the eye shade is screwed at one end of the lens body of the lens and tightly presses and fixes the protective lens in the lens groove.

Under the action of the snake bone controller and the bent snake bone, the front end of the sheath tube is bent by 60 degrees.

The sheath pipe access way is funnel-shaped, the less one end in sheath pipe access way aperture is towards the sheath pipe.

The invention has the following beneficial effects:

1. because the combined superfine bronchoscope comprises the fiber optic scope and the sheath tube component, and the light source optical fiber, the image transmission optical fiber and the imaging objective lens are all arranged in the insertion tube of the fiber optic scope, the sheath tube in the sheath tube component does not need to be provided with the equipment, and only the bent snake bone is arranged, so that the sheath tube has the imaging function of the bronchoscope, the sheath tube can have the superfine diameter with the outer diameter of 2mm and can reach an airway with the periphery farther and thinner, the front end of the sheath tube is easier to approach or reach the focus part on the periphery of the lung, and can also have a large passageway with the inner diameter of 1.5mm, thereby being convenient for ultrasonic exploration and material taking biopsy;

2. because the fiber optic lens of the invention has the insertion tube with the superfine diameter of 0.78mm, the light source optical fiber, the image transmission optical fiber and the imaging objective lens, the fiber optic lens of the invention has the advantages of superfine outer diameter, good brightness and good definition; moreover, the fiber optic endoscope can observe the far-end bronchus and the pathological changes thereof through a severely-narrow airway lumen; in addition, the percutaneous puncture coaxial needle can be inserted to directly observe the pulmonary peripheral lesion and the pulmonary tissue, and the percutaneous clamp examination and the brush examination can be conducted under the guidance; in addition, the visceral parietal pleura lesion and the internal structure of the large lung vacuole can be observed by inserting the fine puncture needle, so the invention also has the advantage of wide application range;

3. because the snake bone controller in the sheath tube component is provided with the instrument connector which is communicated with the sheath tube through the sheath tube inlet channel, the instrument connector can be used for inserting sampling tools such as biopsy forceps, brushes, needle suction needles and the like to carry out sampling operations in various modes; the device can also be used for connecting a negative pressure suction and inflation device, and the definition of the fiberoptic lens is recovered through suction or gas injection, so that peripheral bronchus and pathological changes of the lung can be observed conveniently; therefore, the invention also has the advantages of multiple functions and convenient use.

Drawings

FIG. 1 is a schematic diagram of a fiber optic mirror according to a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of a fiberoptic mirror in accordance with a preferred embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of an insertion tube in accordance with a preferred embodiment of the present invention;

FIG. 4 is a schematic structural view of a sheath assembly according to a preferred embodiment of the present invention;

FIG. 5 is a cross-sectional view of the sheath assembly in accordance with the preferred embodiment of the present invention;

fig. 6 is a cross-sectional view of a sheath in a preferred embodiment of the invention.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Referring to fig. 1 to 6, a preferred embodiment of a novel combined type micro-bronchoscope of the present invention comprises a fiberscope 1 and a sheath assembly 2; the fiber optic 1 comprises an optic body 10, an observation eyepiece 11, a light guide joint 12 and a tube fixing seat 13, wherein the observation eyepiece 11 and the tube fixing seat 13 are respectively arranged at two ends of the optic body 10, and the light guide joint 12 is arranged on the side wall of the optic body 10; one end of the insertion tube 14 is installed on the tube fixing seat 13, the other end of the insertion tube 14 is a free end, and the outer diameter of the insertion tube 14 is 0.78 mm; an optical fiber outer tube 15, the optical fiber outer tube 15 being inserted into the insertion tube 14, and one end thereof facing the optical lens body 10 being connected to the light guide joint 12; an optical fiber inner tube 16 inserted in the optical fiber outer tube 15, one end of which facing the optical lens body 10 is connected to the observation eyepiece 11; a light source optical fiber 17, the light source optical fiber 17 being fitted between the optical fiber outer tube 15 and the optical fiber inner tube 16, and one end thereof facing the optical lens body 10 being connected to the light guide joint 12; the image transmission optical fiber 18 is matched in the optical fiber inner tube 16, and one end of the image transmission optical fiber 18 facing the optical lens body 10 is connected to the observation ocular lens 11; the imaging objective lens 19 is matched at the tail end of the optical fiber inner tube 16 and is connected with the image transmission optical fiber 18; the sheath component 2 comprises a snake bone controller 20, the snake bone controller 20 is provided with an optical lens joint 21, an instrument joint 22 and a sheath entering channel 23, and the optical lens joint 21 and the instrument joint 22 are communicated with the sheath entering channel 23; one end of the sheath 24 is connected to the snake bone controller 20 and communicated with the sheath entrance channel 23, the other end is a free end, the outer diameter of the sheath 24 is 2mm, and the inner diameter of the sheath 24 is 1.5 mm; wherein, the snake bone controller 20 is also provided with a snake bone control rod 25 and a controller main body 26, the sheath 24 is provided with a bending snake bone 27, the snake bone control rod 25 is connected with the bending snake bone 27 through the controller main body 26, thereby controlling the sheath 24 through the bending snake bone 27.

When in use, the light guide joint 12 of the fiber optic mirror 1 is connected to light source equipment, and the light source equipment is used for providing a light source for the fiber optic mirror 1; the observation eyepiece 11 of the fiberoptic lens 1 is connected to the imaging device, so that the image collected by the imaging objective lens 19 can be transmitted to the imaging device through the observation eyepiece 11, processed and amplified by the imaging device, and then displayed through the display.

Because the external diameter of the sheath 24 in the sheath component 2 is 2mm, and the internal diameter is 1.5mm, the external diameter of the insertion tube 14 in the fiberscope 1 is 0.78 mm; therefore, the insertion tube 14 in the fiberscope 1 can be inserted into the sheath tube 24 through the optical lens joint 21 of the snake bone controller 20 in the sheath tube assembly 2, and the front end of the insertion tube 14 is flush with the front end of the sheath tube 24, i.e. the front end of the fiberscope 1 is flush with the front end of the sheath tube 24; then, the patient is directly inserted through the nose under the guidance of a navigation bronchoscope, or is inserted through a bronchoscope with a forceps channel larger than 2.2 mm; when the front end of the sheath 24 is blocked by secretion or tube wall, the instrument connector 22 can be connected with a negative pressure suction and inflation device, the definition of the fiberoptic scope 1 is restored through suction or air injection, and peripheral bronchus and lesion of the lung can be observed conveniently; when the front end of the sheath 24 approaches or enters the lung peripheral focus, the fiberscope 1 is withdrawn; then, a radial ultrasonic probe with the diameter of 1.4mm can be inserted through the instrument connector 22 on the snake bone controller 20 in the sheath tube component 2 to probe the lung peripheral focus; after the focus is detected, the radial ultrasonic probe is withdrawn, the instrument connector 22 is inserted into a biopsy forceps, a brush, a needle suction needle and other material taking tools for taking materials in various modes, and the taken sample is used for pathological examination, pathogenic examination and the like.

The fiber optic mirror 1 of the present invention may also have the following applications: because the outer diameter of the insertion tube 14 in the fiberscope 1 is 0.78mm, the fiberscope 1 of the present invention can observe the distal bronchus and the lesion thereof through a severely narrowed airway lumen; in addition, the percutaneous puncture coaxial needle can be inserted to directly observe the pulmonary peripheral lesion and the pulmonary tissue, and the percutaneous clamp examination and the brush examination can be conducted under the guidance; in addition, the visceral parietal pleura lesion and the internal structure of the large lung vacuole can be observed by inserting the needle through a fine puncture needle.

The invention is characterized in that the invention has the following beneficial effects:

1. because the invention is a combined superfine bronchoscope, including fiber optic scope 1 and sheath tube assembly 2 two parts, and light source fiber 17, image-transmitting fiber 18 and imaging objective 19 are all set up in the insertion tube 14 of the fiber optic scope 1, make the sheath tube 24 in the sheath tube assembly 2 not need to mount the above-mentioned apparatus, only mount the crooked snake bone 27, so, the invention is while having bronchoscope imaging function at the same time, the sheath tube 24 of the invention can make the external diameter 2mm superfine diameter, can reach the farther thinner air flue of periphery, the front end of sheath tube 24 is apt to approach or reach the focus position of lung periphery, can have 1.5mm large channel of internal diameter at the same time, facilitate the ultrasonic exploration and biopsy and draw materials;

2. because the fiber optic lens 1 of the invention has the insertion tube 14 with 0.78mm superfine diameter, the light source optical fiber 17, the image transmission optical fiber 18 and the imaging objective lens 19, the fiber optic lens 1 of the invention has the advantages of superfine outer diameter, good brightness and good definition; in addition, the fiberoptic scope 1 can observe the far-end bronchus and the pathological changes thereof through the severely-narrow airway lumen; in addition, the percutaneous puncture coaxial needle can be inserted to directly observe the pulmonary peripheral lesion and the pulmonary tissue, and the percutaneous clamp examination and the brush examination can be conducted under the guidance; in addition, the visceral parietal pleura lesion and the internal structure of the large lung vacuole can be observed by inserting the fine puncture needle, so the invention also has the advantage of wide application range;

3. because the snake bone controller 20 in the sheath tube component 2 is provided with the instrument connector 22, the instrument connector 22 is communicated with the sheath tube 24 through the sheath tube inlet channel 23, and the instrument connector 22 can be used for inserting sampling tools such as biopsy forceps, brushes, needle suction needles and the like to carry out sampling operations in various modes; the device can also be used for connecting a negative pressure suction and inflation device, and the definition of the fiberoptic scope 1 is recovered through suction or gas injection, so that peripheral bronchus of the lung and pathological changes can be conveniently observed; therefore, the invention also has the advantages of multiple functions and convenient use.

The light source fiber 17 is composed of a plurality of bundles of optical fibers closely arranged along the inner circumference of the fiber outer tube 15. The multiple bundles of optical fibers are closely arranged along the inner periphery of the optical fiber outer tube 15, so that the brightness of light can be improved, and the light illumination is uniform.

The light guide connector 12 comprises a connector housing 121, one end of the connector housing 121 is mounted on the optical lens body 10, and the other end is provided with a connector connected with a light source device; the upper connecting seat 122 is arranged in the connector shell 121, and a funnel light-gathering hole 1221 communicated with the connector is arranged in the upper connecting seat 122; and the lower connecting seat 123 is arranged in the connector shell 121 and is positioned below the upper connecting seat 122, a conical line concentrating hole 1231 is arranged in the lower connecting seat 123, the conical line concentrating hole 1231 and one end with a small aperture in the funnel light concentrating hole 1221 are oppositely arranged, and the light source optical fiber 17 is connected to the lower connecting seat 123.

Through being equipped with toper line concentration hole 1231, conveniently gather together multi-beam optic fibre, and funnel light gathering hole 1221 also can gather together light source equipment's light, and the counterpoint of aperture one end in rethread toper line concentration hole 1231 and the funnel light gathering hole 1221 can guarantee light source equipment's light and effectively transmit.

One end of the optical lens body 10 is provided with an eyepiece channel 101 and a lens groove 102 positioned at the end of the eyepiece channel 101; the observation eyepiece 11 comprises an eyepiece mounting seat 111, the eyepiece mounting seat 111 is fixed in the optical lens body 10, and the image transmission optical fiber 18 is connected to the eyepiece mounting seat 111; an eyepiece main body 112, one end of the eyepiece main body 112 is installed on the eyepiece installing seat 111 and is positioned at the front end of the image transmission optical fiber 18, and the other end extends into the eyepiece channel 101; a protective lens 113, the protective lens 113 fitting within the lens groove 102; and an eyeshade 114, wherein the eyeshade 114 is screwed on one end of the optical lens body 10 and presses and fixes the protective lens 113 in the lens groove 102.

When in use, a user can directly observe the imaging condition of the fiberoptic lens 1 through the observation eyepiece 11 by naked eyes; the eyeshade 114 can shield the external interference light, thereby facilitating the observation of the user; the protective lens 113 can protect the glasses of the user.

The sheath 24 is bent at an angle of 60 degrees at the tip end of the sheath 24 by the snake bone controller 20 and the bent snake bone 27. Because the sheath 24 of the invention is provided with the bending snake bone 27, the bending angle of the front end of the sheath 24 can be adjusted under the control of the snake bone controller 20, and under the action of the snake bone controller 20 and the bending snake bone 27, the front end of the sheath 24 can reach a larger bending angle of 60 degrees, thereby ensuring that the sheath 24 can be inserted into different bronchial branches, and having the advantage of convenient use.

The sheath entry passage 23 is funnel-shaped, and the smaller end of the sheath entry passage 23 faces the sheath 24. The funnel-shaped sheath tube entrance channel 23 is beneficial to the insertion of tools such as the fiberscope 1, the radial ultrasonic probe, the biopsy forceps, the hair brush, the needle suction needle and the like, and has the advantage of convenient use.

The foregoing description of specific exemplary embodiments of the invention has been presented for the purposes of illustration and description and is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as may be appropriate to those skilled in the art without departing from the scope of the invention.

Claims

1. A novel combined superfine bronchoscope is characterized in that: the combined superfine bronchoscope comprises a fiber optic scope and a sheath tube component; wherein the fiber optic mirror comprises

The device comprises a light mirror body, an observation eyepiece, a light guide joint and a tube fixing seat, wherein the observation eyepiece and the tube fixing seat are respectively arranged at two ends of the light mirror body;

one end of the insertion pipe is installed on the pipe fixing seat, the other end of the insertion pipe is a free end, and the outer diameter of the insertion pipe is 0.78 mm;

the optical fiber outer tube is inserted into the insertion tube, and one end of the optical fiber outer tube facing the optical lens body is connected to the light guide connector;

the optical fiber inner tube is inserted into the optical fiber outer tube, and one end of the optical fiber inner tube facing the optical lens body is connected to the observation eyepiece;

the light source optical fiber is matched between the optical fiber outer tube and the optical fiber inner tube, and one end of the light source optical fiber facing the optical lens body is connected to the light guide joint;

the image transmission optical fiber is matched in the optical fiber inner tube, and one end of the image transmission optical fiber facing the optical lens body is connected to the observation ocular lens;

the imaging objective lens is matched at the tail end of the optical fiber inner tube and is connected with the image transmission optical fiber;

wherein the sheath assembly comprises

The snake bone controller is provided with an optical lens joint, an instrument joint and a sheath tube inlet channel, and the optical lens joint and the instrument joint are communicated with the sheath tube inlet channel;

one end of the sheath is connected to the snake bone controller and communicated with the sheath entry channel, the other end of the sheath is a free end, the outer diameter of the sheath is 2mm, and the inner diameter of the sheath is 1.5 mm;

still be equipped with snake bone control rod and controller main part on the snake bone controller, install crooked snake bone on the sheath pipe, the snake bone control rod passes through the controller main part and is connected with crooked snake bone to through crooked snake bone control sheath pipe.

2. The novel combined ultra-fine bronchoscope of claim 1, wherein: the light source optical fiber consists of a plurality of bundles of optical fibers which are tightly arranged along the inner circumference of the optical fiber outer tube.

3. The novel combined ultra-fine bronchoscope of claim 2, wherein: the light guide connector comprises

One end of the joint shell is arranged on the optical lens body, and the other end of the joint shell is provided with a connector connected with the light source equipment;

the upper connecting seat is arranged in the connector shell, and a funnel light-gathering hole communicated with the connector is arranged in the upper connecting seat;

and the lower connecting seat is arranged in the connector shell and is positioned below the upper connecting seat, a conical wire collecting hole is arranged in the lower connecting seat, one end of the conical wire collecting hole, which is small in aperture, is arranged opposite to one end of the funnel wire collecting hole, and the light source optical fiber is connected to the lower connecting seat.

4. The novel combined ultra-fine bronchoscope of claim 1, wherein: one end of the optical lens body is provided with an ocular channel and a lens groove positioned at the end part of the ocular channel; the observation eyepiece comprises

The eyepiece mounting seat is fixed in the optical lens body, and the image transmission optical fiber is connected to the eyepiece mounting seat;

one end of the eyepiece main body is arranged on the eyepiece mounting seat and positioned at the front end of the image transmission optical fiber, and the other end of the eyepiece main body extends into the eyepiece channel;

a protective lens fitted within the lens groove;

and the eye shade is screwed at one end of the lens body of the lens and tightly presses and fixes the protective lens in the lens groove.

5. The novel combined ultra-fine bronchoscope of claim 1, wherein: under the action of the snake bone controller and the bent snake bone, the front end of the sheath tube is bent by 60 degrees.

6. The novel combined ultra-fine bronchoscope of claim 1, wherein: the sheath pipe access way is funnel-shaped, the less one end in sheath pipe access way aperture is towards the sheath pipe.