CN112674699A - Fiberoptic bronchoscope respiratory tract washing tube and matching device thereof - Google Patents
Fiberoptic bronchoscope respiratory tract washing tube and matching device thereof Download PDFInfo
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Abstract
A fiberoptic bronchoscope respiratory tract washing tube and a matched device thereof are characterized in that: the washing tube consists of a washing tube (3) inserted into an instrument channel of the endoscope outer tube and a liquid suction tube (1) positioned in the washing tube (3), the washing tube (3) is inserted into the instrument channel of the endoscope outer tube, a washing channel (2) is formed between the washing tube (3) and the liquid suction tube (1), the front end of the liquid suction tube (1) extends out of the washing tube (3), and the outer surface of the front end is of an arc-shaped or conical guide structure so as to guide and spray liquid sprayed out of the washing channel (2) to the wall of an air tube; the rear end of the pipette (1) extends out of the liquid flushing pipe (3) and is communicated with a negative pressure source; the rear end of the liquid flushing pipe (3) is connected with an endoscope locking connector (4) and a liquid injection port (9) which are connected with a Ruhr connector on an endoscope, and the liquid injection port (9) is communicated with a flushing liquid source with pressure. The invention has the advantages of good cleaning effect and repeated use.
Description
Technical Field
The invention relates to a medical instrument, in particular to a surgical instrument for cleaning a respiratory tract, and specifically relates to a fiber bronchoscope respiratory tract washing tube, a fiber bronchoscope thereof and a respiratory tract tip cleaning device based on the fiber bronchoscope.
Background
The bronchoscope is generally used in bronchial examination, sputum suction and cleaning operations, and plays a role in removing sputum emboli and sputum and cleaning the airway of a patient, and the common sputum suction operation mode is to flush water first and then perform liquid suction operation. The flushing mode is that water is directly filled to the front. The flushing and sputum suction share one channel. The traditional method for cleaning the respiratory tract by the fiberbronchoscope has the following clinical pain points: 1) thick or dry sputum adhered to bronchial mucosa is difficult to clean or suck out quickly, so that the ventilation function is seriously affected, and even the life of a patient is threatened; 2) the product structure and the operation performance are not enough to remove inflammatory secretion or foreign matters at the periphery of the respiratory tract; 3) the product design of the traditional fiber bronchoscope only adopts a working mode of flushing and then sucking, can not quickly clean the respiratory tract, has long time consumption and obviously increases the operation risk; 4) when the sputum suction device is operated, water is flushed firstly and then the fluid is sucked, and the flushing and the fluid sucking share one tube cavity, so that the sputum suction pipeline is easily polluted, and potential safety hazards such as suffocation of patients are easily caused. Therefore, the existing product is difficult to thoroughly and quickly clean the sputum adhered to the peripheral bronchus in the deep part, has large operation risk and wastes time and labor relatively. Therefore, the clinical urgent need is to innovate and design a device that can wash and wash respiratory mucosa and inhale phlegm effectively fast to can clear up respiratory peripheral secretion through quick siphon effect. Therefore, the Chinese patent 2021100349436 better solves the problems, and the applicant finds that the washing tube and the pipette used in the patent are both fixed in an endoscopic surgery channel, the outer tube of the endoscope is used as a transfusion channel, the full-angle washing can be realized only by rotating the endoscope due to the limited number of spray holes in the liquid spraying process, the use is inconvenient, simultaneously, the cleaning and the disinfection are inconvenient, the endoscope cannot be reused, and the problem of overhigh surgery cost is solved.
Disclosure of Invention
The invention aims to design a conveniently-replaced fiberbronchoscope respiratory tract washing tube aiming at the problems that the washing range of the existing bronchoscope is limited and the cost of surgical instruments is high due to the fact that the washing tube cannot be replaced, and simultaneously designs a corresponding endoscope structure and a fiberbronchoscope lower respiratory tract washing matching device based on the content.
One of the technical schemes of the invention is as follows:
a fiberoptic bronchoscope respiratory tract washing tube is characterized in that: the fiber bronchoscope is matched with a fiber bronchoscope for use, and consists of a flushing pipe 3 inserted into an instrument channel of an outer endoscope pipe and a pipette 1 positioned in the flushing pipe 3, wherein the flushing pipe 3 is inserted into the instrument channel of the outer endoscope pipe, a flushing channel 2 is formed between the flushing pipe 3 and the pipette 1, the front end of the pipette 1 extends out of the flushing pipe 3, and the outer surface of the front end is of an arc-shaped or conical guide structure so as to guide and spray liquid sprayed out of the flushing channel 2 to the tracheal wall; the back end of the pipette 1 extends out of the liquid flushing pipe 3 and is communicated with a negative pressure source; the rear end of flushing pipe 3 be connected with the scope locking that links to each other with luer connector on the scope and connect 4 and annotate liquid mouth 9, annotate liquid mouth 9 and be used for with the washing liquid source intercommunication of taking pressure, take the washing liquid of pressure to follow and annotate in liquid mouth pours into flushing pipe 3 into, flow to flushing pipe 3's exit end and spout to the trachea inner wall under the effect of circular-arc or the taper guide structure of pipette 1 front end along wash passage 2, wash the sputum of adhesion on the trachea wall from the trachea wall, outside again by pipette 1 suction gas pipe installed in flushing pipe.
The fiber bronchoscope respiratory tract washing tube and the fiber bronchoscope are packaged separately and are placed into an endoscope for use before use.
The back end of the pipette 1 is communicated with a negative pressure source through a suction port 7, and the negative pressure source generates suction to suck out sputum and cleaning solution from the trachea/bronchus.
The rear end of the pipette 1 communicates with the aspiration port 7 through an aspiration chamber 8.
The liquid injection port 9 of the flushing pipe 3 is communicated with the flushing pipe 3 through a liquid storage cavity 8, and the liquid storage cavity 8 is connected with a liquid discharge joint 5 to prevent the damage of human organs caused by overlarge flushing pressure.
The second technical scheme of the invention is as follows:
a fiber bronchoscope based on a fiber bronchoscope respiratory tract washing tube is characterized by comprising an outer tube 21, an operating handle 12 and a fiber bronchoscope respiratory tract washing tube 22, wherein an instrument opening 11 is formed in the operating handle 12, the fiber bronchoscope respiratory tract washing tube 22 is inserted into an instrument channel of the outer tube 21 of the fiber bronchoscope from the instrument opening 11 and is locked on the operating handle 12 through a locking joint 4 on the fiber bronchoscope respiratory tract washing tube 22; an illumination light source 19 and an endoscope lens 20 are attached to a lens mount at the end of the outer tube 21.
The operating handle 12 is provided with an interface 26 for connecting the endoscope lens 20 with the endoscope host 14.
The third technical scheme of the invention is as follows:
the utility model provides a respiratory track washes supporting device based on fiberoptic bronchoscope which characterized by: it includes:
a control host computer 16, which is used for controlling the water injection of the water injection device 17 and the operation of the negative pressure generator of the sputum recovery device 15, so as to timely inject water to the bronchus end for flushing and suck the sputum and the waste water generated by flushing into the sputum recovery device 15;
the water injection device 17 is controlled by the control host 8, the inlet end of the water injection device 17 is communicated with a water source 18 through a pipeline, and the outlet of the water injection device 17 is communicated with the water injection port 9 of the lower respiratory tract washing pipe 22 of the bronchofiberscope through a pipeline;
the sputum recovery device 15 consists of a negative pressure pump and a recovery tank, the negative pressure pump is controlled by a control host computer 16, the negative pressure pump is connected with a negative pressure generation cavity of the recovery tank through a negative pressure pipe, and a liquid inlet of the recovery tank is communicated with a suction port 7 on a lower respiratory tract flushing pipe 22 of the bronchofiberscope through a pipeline;
the fiber bronchoscope 25 comprises an operating handle 12 and a fiber bronchoscope respiratory tract washing tube 22, wherein a thumb wheel 13 and an instrument opening 11 are arranged on the operating handle 12, the thumb wheel 13 is connected with a steel wire, the steel wire is connected with the far end of an outer tube 21, and the full-angle observation of the endoscope lens 20 is realized by controlling the bending deformation of the far end of the endoscope outer tube 21; the fiberbronchoscope airway-washing tube 22 is replaceably installed in the instrument channel of the outer tube 21, and is fixed to the operation handle 13 connected to the outer tube 21 by a luer fitting.
The flushing mode of the flushing pipe 3 in the under-endoscope expiration channel flushing pipe 22 and the pipette 1 and the suction mode are controlled by the control host computer 16, and the working modes comprise three working modes, namely, flushing and suction are carried out simultaneously; secondly, the control host 16 controls the flushing time T for flushing, and the flushing is started to carry out T after the flushing reaches a certain time1Time of attraction, and T is slightly larger than T1Namely T>T1(ii) a And thirdly, the suction after the flushing and the suction after the flushing are respectively carried out.
The endoscope host 14 is connected with a display 23.
The invention has the beneficial effects that:
the invention adopts an integrated flushing and sucking type, the bending device is controlled by holding the handle, the flushing and sucking are divided into different tube cavities, the tube walls are flushed by 360 degrees, the water flow is divergently and directly flushed to the mucosa of the trachea, and the problem that the mucosa can not be flushed by pressurizing to clean the bronchus because the water is directly injected into the airway in the past is solved. Because the flushing and the suction are respectively controlled by the independent channels, different operation modes such as simultaneous flushing and suction, staggered flushing and suction, siphon flushing and suction and the like can be conveniently and flexibly adopted, and the aims of efficiently and quickly cleaning the respiratory tract and effectively cleaning the respiratory tract tip are fulfilled. The operation is time-saving and labor-saving, no secondary sputum pollution is caused, the operation time can be obviously shortened, and the operation risk of clearing bronchoscope respiratory tract inflammatory secretion is reduced.
The pulse type intermittent flushing is controlled by a control host machine 16 (comprising a host machine and software), and the flushing direction is adjustable. The problem of the easy air flue suffocation that arouses of continuous water injection washing is solved, the visual air flue of selecting to wash of being furnished with endoscope head, be furnished with the biopsy pore and can clean in time phlegm embolus patient. The doctor can easily operate the horn mouth (circular arc and conical) shape design of the head to easily clean the narrow and small bronchus of the cavity channel by 360 degrees, and the water flow is annularly sprayed obliquely and can clean sputum on the bronchial wall more thoroughly.
The multifunctional endoscope realizes quick replacement of the flushing pipe, the endoscope main body can be repeatedly used after being disinfected according to the conventional method, and meanwhile, the multifunctional endoscope realizes multiple purposes, can be used for conventional examination and lung cleaning, quickly saves lives of patients suffering from emphysema or lung blockage (such as patients suffering from new coronary pneumonia), and keeps smooth breathing.
The invention can also cause the water flushed into the lung bubbles to lose pressure instantly and enter the pipette quickly by controlling the water injection and suction time, thereby realizing the cleaning of mucus in the alveolus and saving the life of patients with severe pneumonia. The problem that effective lung air bubble mucus cleaning cannot be carried out at present is solved.
The invention is mainly applied to cleaning the lower respiratory tract, can also be applied to cleaning the upper respiratory tract when necessary, and can be also applied to all endoscopes needing to be cleaned in an expanded way.
Drawings
FIG. 1 is a schematic view of the structure of the lower airway irrigation tube of the fiberoptic bronchoscope of the present invention.
Fig. 2 is an enlarged schematic view of the head end of the lower respiratory tract irrigation tube of the bronchofiberscope of the present invention.
Fig. 3 is a cross-sectional view of fig. 1. In the figure 10 is a stopper.
Figure 4 is a schematic view of the structure of the endoscope of the present invention.
Fig. 5 is a schematic view of the inner lens portion structure of the present invention.
FIG. 6 is a schematic view of a bronchofiberscope apparatus for cleaning respiratory tract distal ends according to the present invention.
Fig. 7 is a schematic diagram of the pumping time in the operational mode.
Detailed Description
The invention is further described below with reference to the figures and examples.
The endoscopes in the following examples are generally referred to as fiberoptic bronchoscopes, unless specifically noted otherwise. Those skilled in the art can also apply the fiberbronchoscope of the present invention to other endoscopes.
The first embodiment.
As shown in fig. 1-3.
A fiber bronchoscope respiratory tract washing tube, in particular to a lower respiratory tract washing tube for a fiber bronchoscope, wherein the fiber bronchoscope respiratory tract washing tube and the fiber bronchoscope are separately packaged and then are placed into an endoscope for use before use. The fiber bronchoscope is matched with a fiber bronchoscope for use and comprises a flushing pipe 3 inserted into an instrument channel of an endoscope outer tube and a pipette 1 positioned in the flushing pipe 3, as shown in figure 1, the flushing pipe 3 is inserted into the instrument channel of the endoscope outer tube, a flushing channel 2 is formed between the flushing pipe 3 and the pipette 1, the flushing pipe and the pipette 1 are supported and connected through continuous or intermittent axial support bars, liquid flows from the support bars, the number of the support bars is generally two or three, the front end of the pipette 1 extends out of the flushing pipe 3, and the outer surface of the front end is of an arc-shaped or conical guide structure so as to guide and spray the liquid sprayed out of the flushing channel 2 to the tracheal wall; the back end of the pipette 1 extends out of the liquid flushing pipe 3 and is communicated with a negative pressure source; the rear end of the flushing pipe 3 is connected with an endoscope locking connector 4 and a liquid injection port 9 which are connected with a luer connector on an endoscope, the liquid injection port 9 is used for being communicated with a flushing liquid source with pressure, the flushing liquid with pressure is injected into the flushing pipe 3 from the liquid injection port, flows to the outlet end of the flushing pipe 3 along the flushing channel 2 and is sprayed to the inner wall of the trachea under the action of an arc-shaped or cone-shaped guide structure 24 (figure 2) at the front end of the pipette 1, sputum adhered to the wall of the trachea is flushed away from the wall of the trachea, and then the sputum is sucked out of the trachea through the pipette 1 installed in the flushing pipe. The back end of the pipette 1 is communicated with a negative pressure source through a suction port 7, and the negative pressure source generates suction to suck out sputum and cleaning solution from the trachea/bronchus. The rear end of the pipette 1 communicates with the aspiration port 7 through an aspiration chamber 8. The liquid injection port 9 of the flushing pipe 3 is communicated with the flushing pipe 3 through a liquid storage cavity 8, and the liquid storage cavity 8 is connected with a liquid discharge joint 5 to prevent the damage of human organs caused by overlarge flushing pressure, as shown in figure 1.
Example two.
As shown in fig. 4-5.
A fiber bronchoscope based on a fiber bronchoscope respiratory tract washing tube comprises an outer tube 21, an operating handle 12 and a fiber bronchoscope respiratory tract washing tube 22 (the specific structure is shown in figures 1-3), as shown in figure 4, an instrument opening 11 is arranged on the operating handle 12, the fiber bronchoscope respiratory tract washing tube 22 is inserted into an instrument channel of the outer tube 21 of the fiber bronchoscope from the instrument opening 11, and is locked on the operating handle 12 through a locking joint 4 on the fiber bronchoscope respiratory tract washing tube 22; an illumination light source 19 and an endoscope lens 20 are attached to a lens mount at the end of the outer tube 21. The operating handle 12 is provided with an interface 26 for connecting the endoscope lens 20 with the endoscope host 14. In specific implementation, the structure of the endoscope outer tube 21, the structure of the operation handle 12, and the installation structure of the illumination light source 19 and the endoscope lens 20 on the lens mount are the same as or can be implemented by the prior art, as shown in fig. 5.
Example three.
As shown in fig. 6-7.
A respiratory tract flushing matching device based on a fiber bronchoscope comprises:
a control host computer 16, which is used for controlling the water injection of the water injection device 17 and the operation of the negative pressure generator of the sputum recovery device 15, so as to timely inject water to the bronchus end for flushing and suck the sputum and the waste water generated by flushing into the sputum recovery device 15;
the water injection device 17 is controlled by the control host 8, the inlet end of the water injection device 17 is communicated with a water source 18 through a pipeline, and the outlet of the water injection device 17 is communicated with the water injection port 9 of the lower respiratory tract washing pipe 22 of the bronchofiberscope through a pipeline;
the sputum recovery device 15 consists of a negative pressure pump and a recovery tank, the negative pressure pump is controlled by a control host computer 16, the negative pressure pump is connected with a negative pressure generation cavity of the recovery tank through a negative pressure pipe, and a liquid inlet of the recovery tank is communicated with a suction port 7 on a lower respiratory tract flushing pipe 22 of the bronchofiberscope through a pipeline;
the fiber bronchoscope 25 comprises an operating handle 12 and a fiber bronchoscope respiratory tract washing tube 22, wherein a thumb wheel 13 and an instrument opening 11 are arranged on the operating handle 12, the thumb wheel 13 is connected with a steel wire, the steel wire is connected with the far end of an outer tube 21, and the full-angle observation of the endoscope lens 20 is realized by controlling the bending deformation of the far end of the endoscope outer tube 21; the fiberbronchoscope airway-washing tube 22 is replaceably installed in the instrument channel of the outer tube 21, and is fixed to the operation handle 13 connected to the outer tube 21 by a luer fitting. The endoscope main body 14 is connected with a display 23 as shown in fig. 6.
The endoscope is used for breathing downwardsThe flushing mode of the flushing pipe 3 in the pipeline flushing pipe 22 and the suction mode of the pipette 1 and the suction mode are controlled by the control host computer 16, and the working modes include three working modes, namely, flushing and suction are carried out simultaneously; secondly, the control host 16 controls the flushing time T for flushing, and the flushing is started to carry out T after the flushing reaches a certain time1Time of attraction, and T is slightly larger than T1Namely T>T1(ii) a ③ suction after rinsing and suction before rinsing, respectively, as shown in fig. 7.
In operation, the endoscope host 14 processes images collected by the endoscope lens 20. The endoscope operating handle 12 is held, and the front end of the endoscope outer tube 21 is bent and adjusted by controlling the thumb wheel 13, so that the purpose of probing and diagnosing the bronchus and flushing and sucking sputum is achieved. The sputum suction and flushing are controlled through the control host computer 16, and the suction of the sputum is controlled by pressing the negative pressure suction button on the operating handle to control the pipette 1; the control main machine 16 flushes the liquid flushing pipe 3.
The parts not involved in the present invention are the same as or can be implemented using the prior art.
Claims (10)
1. A fiberoptic bronchoscope respiratory tract washing tube is characterized in that: the fiber bronchoscope is matched with a fiber bronchoscope for use and comprises a liquid flushing pipe (3) inserted into an instrument channel of an endoscope outer tube and a liquid sucking pipe (1) positioned in the liquid flushing pipe (3), wherein the liquid flushing pipe (3) is inserted into the instrument channel of the endoscope outer tube, a flushing channel (2) is formed between the liquid flushing pipe (3) and the liquid sucking pipe (1), the front end of the liquid sucking pipe (1) extends out of the liquid flushing pipe (3), and the outer surface of the front end is of an arc-shaped or conical guide structure so as to guide and spray liquid sprayed out of the flushing channel (2) to the tracheal wall; the rear end of the pipette (1) extends out of the liquid flushing pipe (3) and is communicated with a negative pressure source; the rear end of flushing pipe (3) be connected with scope locking joint (4) and notes liquid mouth (9) that link to each other with luer joint on the scope, it is used for and takes the flush fluid source intercommunication of pressure to annotate liquid mouth (9), take the flush fluid of pressure to pour into in flushing pipe (3) from annotating the liquid mouth, along wash channel (2) flow to the exit end of flushing pipe (3) and spout to tracheal inner wall under the effect of circular-arc or the taper guide structure of pipette (1) front end, wash the sputum of adhesion on tracheal wall from the trachea wall, outside pipette (1) the suction pipe installed in the flushing pipe again.
2. The bronchofiberscope airway lavage tube of claim 1, which is packaged separately from the bronchofiberscope and placed into an endoscope for use before use.
3. The bronchofiberscope airway tube of claim 1, wherein: the rear end of the pipette (1) is communicated with a negative pressure source through a suction port (7), and the negative pressure source generates suction to suck out sputum and cleaning liquid from the trachea/bronchus.
4. The bronchofiberscope airway tube of claim 3, wherein: the back end of the pipette (1) is communicated with the suction port (7) through a pipette cavity (8).
5. The bronchofiberscope airway tube of claim 1, wherein: the liquid injection port (9) of the liquid flushing pipe (3) is communicated with the liquid flushing pipe (3) through a liquid storage cavity (8), and the liquid storage cavity (8) is connected with a liquid discharge joint (5) to prevent the damage of human organs caused by overlarge flushing pressure.
6. A fiberbronchoscope based on the fiberbronchoscope respiratory tract washing tube of claim 1, which is characterized by comprising an outer tube (21), an operating handle (12) and a fiberbronchoscope respiratory tract washing tube (22), wherein the operating handle (12) is provided with an instrument opening (11), the fiberbronchoscope respiratory tract washing tube (22) is inserted into an instrument channel of the outer tube (21) of the fiberbronchoscope from the instrument opening (11), and is locked on the operating handle (12) through a locking joint (4) on the fiberbronchoscope respiratory tract washing tube (22); an illumination light source (19) and an endoscope lens (20) are mounted on a lens mount at the end of the outer tube (21).
7. The fiberoptic bronchoscope according to claim 6, wherein the operation handle (12) is provided with an interface (26) for connecting the endoscope lens (20) with the endoscope main body (14).
8. A respiratory tract irrigation complete set based on the fiberoptic bronchoscope of claim 6, characterized in that: it includes:
the control host (16) is used for controlling the water injection of the water injection device (17) and the work of a negative pressure generator of the sputum recovery device (15) so as to timely inject water to the periphery of the bronchus for flushing and suck the sputum and the waste water generated by flushing into the sputum recovery device (15);
the water injection device (17) is controlled by the control host (8), the inlet end of the water injection device (17) is communicated with a water source (18) through a pipeline, and the outlet of the water injection device is communicated with a water injection port (9) of a lower respiratory tract washing pipe (22) of the bronchofiberscope through a pipeline;
the sputum recovery device (15) consists of a negative pressure pump and a recovery tank, the negative pressure pump is controlled by a control host (16), the negative pressure pump is connected with a negative pressure generation cavity of the recovery tank through a negative pressure pipe, and a liquid inlet of the recovery tank is communicated with a suction port (7) on a lower respiratory tract flushing pipe (22) of the bronchofiberscope through a pipeline;
the fiber bronchoscope (25) comprises an operating handle (12) and a fiber bronchoscope respiratory tract washing tube (22), wherein a thumb wheel (13) and an instrument opening (11) are arranged on the operating handle (12), the thumb wheel (13) is connected with a steel wire, the steel wire is connected with the far end of an outer tube (21), and the full-angle observation of the endoscope lens (20) is realized by controlling the bending deformation of the far end of the endoscope outer tube (21); the fiber bronchoscope respiratory tract washing pipe (22) is replaceably arranged in an instrument channel of the outer pipe (21) and is fixed on an operation handle (13) connected with the outer pipe (21) through a luer connector.
9. The fiber support of claim 8The matched device of the bronchoscope lower respiratory tract washing tube is characterized in that: the flushing mode of a flushing pipe (3) in the expiration pipeline flushing pipe (22) under the endoscope, the pipette (1) and the suction mode are controlled by a control host (16), and the working modes comprise three modes, namely firstly, flushing and simultaneously sucking; secondly, the control host (16) controls the flushing time T for flushing, and the flushing is started to carry out T after the flushing reaches a certain time1Time of attraction, and T is slightly larger than T1Namely T>T1(ii) a And thirdly, the suction after the flushing and the suction after the flushing are respectively carried out.
10. The bronchofiberscope lower respiratory tract irrigation tube kit as claimed in claim 8, wherein: the endoscope host (14) is connected with a display (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110180550.6A CN112674699A (en) | 2021-02-08 | 2021-02-08 | Fiberoptic bronchoscope respiratory tract washing tube and matching device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110180550.6A CN112674699A (en) | 2021-02-08 | 2021-02-08 | Fiberoptic bronchoscope respiratory tract washing tube and matching device thereof |
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| CN112674699A true CN112674699A (en) | 2021-04-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115089091A (en) * | 2022-06-30 | 2022-09-23 | 湖南省华芯医疗器械有限公司 | Suction valve assembly, endoscope handle and endoscope |
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2021
- 2021-02-08 CN CN202110180550.6A patent/CN112674699A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115089091A (en) * | 2022-06-30 | 2022-09-23 | 湖南省华芯医疗器械有限公司 | Suction valve assembly, endoscope handle and endoscope |
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