WO2021207913A1

WO2021207913A1 - Multifunctional visual catheter

Info

Publication number: WO2021207913A1
Application number: PCT/CN2020/084610
Authority: WO
Inventors: 欧宏伟; 吴良信; 王建平; 王川
Original assignee: 深圳市资福医疗技术有限公司
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2021-10-21

Abstract

A multifunctional visual catheter, comprising a photographing cavity channel (101), an auxiliary cavity channel (102), and a light source cavity channel. The photographing cavity channel (101), the auxiliary cavity channel (102), and the light source cavity channel are arranged side by side or in a stacked manner. The photographing cavity channel (101) is used for accommodating a pluggable camera module to capture images of internal body parts. The auxiliary cavity channel (102) is used for sucking out or injecting a fluid substance. The light source cavity channel is used for accommodating a light source module and providing an illumination light source required by the camera module. The multifunctional visual catheter can be used as not only a sputum suction tube and a stomach tube, is low in cost and convenient to operate, relieves the burden on the patient, and reduces environmental pollution.

Description

Multifunctional visual catheter

Technical field

The invention relates to the field of medical equipment, and in particular to a multifunctional visual catheter.

Background technique

The sputum suction tube is a commonly used medical appliance in clinical medicine. Its main body is a hose and a suction device. Since the medical staff cannot directly see the specific position of the sputum in the trachea, the medical staff often need to learn from experience. Forecast, and then use blind insertion of the suction tube to suck sputum. This method is not only time-consuming and labor-intensive, but also not clean enough to suck the sputum. Sometimes it can damage the throat and intratracheal mucosa, causing great pain to the patient. To

For patients with coma and weak sputum expectoration, their coughing and swallowing function declines, resulting in difficulty in expelling sputum. If the sputum is inhaled into the lungs, it is prone to pulmonary infection and even life-threatening. For the discharge of deep sputum, the current clinical solution of sputum suction tube is used; and for patients who are unconscious and unable to swallow, in order to ensure their nutritional needs, To maintain water and electrolyte balance and the application of drugs to promote disease recovery, the current solution of using gastric tube to deliver nutrient solution, the above two solutions have been widely used in the medical field.

Chinese Patent No. 201420135609.5 discloses a visual sputum suction tube, which includes a shooting cavity for shooting and finding the location of sputum and foreign bodies and a suction cavity for expelling sputum and foreign bodies. The end of the shooting cavity is provided with Shooting an image capturing module that finds the location of sputum and foreign objects. The image capturing module transmits image data to a data interface, and then to an external control and display device. However, although the above solution solves the visualization problem, the visual sputum suction tube, as a disposable medical device, will be discarded after use. The discarded part includes the image capture module, data transmission line and data interface, which greatly increases the cost of sputum suction. , Thereby increasing the economic burden of patients.

Therefore, it is necessary to develop a multifunctional visual catheter that can be used as a sputum suction tube or a gastric tube to reduce the burden on patients and reduce environmental pollution.

technical problem

The purpose of the present invention is to develop a multifunctional visual catheter, which can be used as a sputum suction tube or a gastric tube, so as to reduce the burden on patients and reduce environmental pollution.

Technical solutions

The invention provides a multifunctional visual catheter, in particular to a visual catheter used for cleaning foreign bodies such as oral cavity, throat, sputum in the trachea, etc., and used for helping patients who cannot swallow to deliver necessary water and nutrition.

The technical scheme of the present invention is as follows:

A multifunctional visual catheter includes a shooting channel, an auxiliary channel and a light source channel. The arrangement of the shooting channel, auxiliary channel and optical fiber channel is arranged side by side or stacked, wherein:

The shooting cavity is used for accommodating a pluggable camera module, the camera module is isolated from the outside by a transparent cover and a hose, and the image of the body part is taken. The front end of the shooting cavity is sealed by the transparent cover, and the rear of the shooting cavity Pluggable interface is set at the end;

Auxiliary cavity, used to suck out or inject fluid substances;

The light source cavity is used to house the light source module and provide the illumination light source required by the camera module.

Further, the front end of the camera module may also include a rotatable component, which in turn drives the front end of the multifunctional visual catheter to rotate, facilitating the observation or movement of the catheter in different directions.

Further, the visual catheter further includes a transparent cover provided at the front end, and the front end surface of the transparent cover may be a flat surface or a spherical surface.

Further, the transparent cover is made of PMMA or PC material.

Further, the peripheral surface of the front end of the visual catheter is also provided with openings, and the number of the openings is one or more.

Further, the shape of the opening may be any of a circle, a square, or an irregular shape.

Further, the visual catheter is made of silica gel, polyvinyl chloride, polyethylene, and polyurethane.

Further, the cross-sectional shape of the auxiliary cavity can be any of a circle, a crescent shape, and a special shape.

Further, the number of said auxiliary cavities can be one or more.

Further, the cavity of the light source may adopt a groove or a sealing structure.

Further, the shooting channels and auxiliary channels can be arranged in a nested manner.

Beneficial effect

The multifunctional visual catheter of the present invention can be used as a sputum suction tube or a gastric tube, has low cost, is convenient to operate, reduces the burden on patients, and reduces environmental pollution.

Description of the drawings

Figure 1: Schematic diagram of the visual catheter structure.

Figure 2: A schematic cross-sectional view of the front end of the visual catheter.

Figure 3: Schematic diagram of the transparent cover structure.

The serial numbers and corresponding names are:

1: Visual catheter front end; 2: Opening; 3: Fiber groove; 4: Catheter body; 5: Catheter three-point connector; 6: Auxiliary channel extension tube; 7: Auxiliary channel connector; 8: Shooting cavity Road connector; 9: optical fiber; 10: optical fiber light source connector; 101: shooting cavity; 102: auxiliary cavity; 103: transparent cover.

The best mode of the present invention

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not used to limit the present invention.

Please refer to Figure 1 for the structural schematic diagram of the visual catheter of the present invention. The visual catheter consists of a visual catheter front end 1, an opening 2, an optical fiber groove 3, a catheter tube body 4, a catheter three-point joint 5, and an auxiliary lumen extension tube 6. , Auxiliary cavity connector 7, imaging cavity connector 8, optical fiber 9 and optical fiber light source connector 10. The opening 2 is arranged on the circumferential surface of the front end of the catheter body 4 for sucking sputum or injecting fluid substances such as nutrient solution The number and shape of the openings are not limited, for example, it can be round, square or irregular. The visual catheter is composed of a shooting channel 101, an auxiliary channel 102 and an optical fiber channel. The lumens are all flexible tubes, and the visual catheter is made of silica gel, polyvinyl chloride, polyethylene, and polyurethane.

Further refer to the cross-sectional schematic diagram of the front end of the visible catheter in Fig. 2 and the schematic structural diagram of the transparent cover of the visible catheter in Fig. 3. The composition structure includes:

Shooting cavity 101. A transparent cover 103 is installed at the front end of the cavity. The transparent cover 103 can not only ensure the optical requirements of the camera lens for observation and shooting, but also seal the shooting cavity 101, avoiding the camera lens module and body fluids. The risk of cross-contamination caused by contact, so as to achieve the purpose of multiple repeated use without the need to disinfect and clean the shooting lens cable. The shooting cavity 101 is used to house a pluggable camera module and passes through a transparent cover. 103 and the hose are isolated from the outside world, and images of internal parts are taken. Those skilled in the art can understand that the front end of the camera module may further include a rotatable component (not shown in the figure) to drive the front end of the multifunctional visual catheter to rotate, so as to facilitate the observation or movement of the catheter in different directions. The rotating part may be, for example, a miniature bearing or a similarly functional part. A pluggable interface is provided at the rear end of the shooting cavity 101, and the front end of the shooting cavity 101 is sealed by a transparent cover 103, which is made of PMMA or PC material, and the front surface of the transparent cover 103 can be a flat surface or a spherical surface.

The auxiliary cavity 102 is used to suck out body fluids such as sputum or gastric juice, or to inject food, water, and medicine. The front side of the cavity has one or more openings, and the auxiliary cavity connector 7 at the end can be connected to a negative pressure device. For sputum suction, water or drug substances can also be injected through a syringe, and a plug cover is provided at the joint. It is understandable that the cross-sectional shape of the auxiliary cavity 102 may also adopt other suitable shapes such as a circle, a crescent shape, and a special shape, and the number of the auxiliary cavity 102 may be one or more.

The light source cavity, which is mainly composed of the fiber groove 3, is convenient for embedding the optical fiber 9 in the groove so that it is not easy to slide out, and is used to house the optical fiber 9, which provides the light source for the camera lens. It is understandable that the light source cavity can also adopt a circular sealing structure, and the optical fiber 9 penetrates into the front end of the visual catheter through the circular sealing structure. Before actual use, the fiber optic light source connector 10 at the tail of the catheter is connected to an external light source to provide a light source for normal observation of the camera lens at the front end of the catheter.

Those skilled in the art can understand that the arrangement of the shooting channel 101, the auxiliary channel 102, and the optical fiber channel is not limited to the arrangement shown in FIG. 2. For example, the shooting channel 101 and the auxiliary channel 102 can also be arranged The arrangement is arranged in a nested manner. Further, the arrangement of the shooting cavity 101, the auxiliary cavity 102, and the optical fiber cavity may also be the arrangement of three cavities side by side or stacked.

The working process of the visual catheter is as follows:

Before use, insert the visual cable with the miniature camera lens at the front end of the visual catheter 1 through the joint at the end of the photographing cavity 101 into the photographing cavity 101 until it reaches the transparent cover 103 of the visual catheter. When the front end of the camera lens just reaches the front port of the cavity.

When performing a sputum suction operation, connect the auxiliary lumen connector 7 of the catheter to the negative pressure device, and insert the catheter into the throat or trachea of the patient. During the insertion process, the external visual device (not shown in the figure) ) Observe the catheter insertion picture taken by the camera at the front of the catheter on the display screen, adjust the position or depth of the catheter insertion according to the observed situation, and then aspirate the sputum.

When performing gastric tube operation, insert the catheter into the patient’s nasal cavity or oral cavity. During the insertion process, observe the captured picture and adjust while inserting it until the visible catheter reaches a proper position in the stomach. Then, use a syringe to add nutrients and water. Liquids such as drugs or drugs are injected into the auxiliary cavity 102 through the auxiliary cavity connector 7 and flow into the stomach through the cavity. During this process, the situation of the liquid being injected into the stomach can still be observed through the captured images.

When the observation is over, pull out the camera cable from the catheter. Since the camera is not contaminated, there is no need for disinfection, which reduces the workload of medical staff and eliminates costs. The next time you use it, you only need to insert the visual device into the new catheter. That is, as a disposable medical consumable, the visual catheter not only realizes visual operation, but also has low cost.

The multifunctional visual catheter of the present invention can be used as a visual sputum suction tube or a visual gastric tube. When used as a visual sputum suction tube, it is used to clean up sputum and foreign bodies in the oral cavity, throat and trachea ; When used as a visible gastric tube, it is used to inject nutrients, water and drugs into the patient’s stomach.

The above descriptions are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection of the present invention. Within range.

Claims

A multifunctional visual catheter, which is characterized in that it includes a shooting channel, an auxiliary channel and a light source channel, and the arrangement of the shooting channel, auxiliary channel and optical fiber channel is arranged side by side or stacked, wherein:

The shooting cavity is used for accommodating a pluggable camera module, the camera module is isolated from the outside by a transparent cover and a hose, and the image of the body part is taken. The front end of the shooting cavity is sealed by the transparent cover, and the rear of the shooting cavity Pluggable interface is set at the end;

Auxiliary cavity, used to suck out or inject fluid substances;

The light source cavity is used to house the light source module and provide the illumination light source required by the camera module.
The multifunctional visual catheter according to claim 1, wherein the front end of the camera module further comprises a rotatable component, which drives the front end of the multifunctional visual catheter to rotate, facilitating the observation or movement of the catheter in different directions.
The multifunctional visual catheter according to claim 1, wherein the visual catheter further comprises a transparent cover provided at the front end, and the front end surface of the transparent cover can be a flat surface or a spherical surface.
The multifunctional visual catheter of claim 3, wherein the transparent cover is made of PMMA or PC material.
The multifunctional visual catheter according to claim 1, wherein the peripheral surface of the front end of the visual catheter is further provided with openings, and the number of the openings is one or more.
The multifunctional visual catheter according to claim 5, wherein the shape of the opening can be any of a circle, a square, or an irregular shape.
The multifunctional visual catheter of claim 1, wherein the visual catheter is made of silica gel, polyvinyl chloride, polyethylene, or polyurethane.
The multifunctional visual catheter according to claim 1, wherein the cross-sectional shape of the auxiliary lumen can be any one of a circular shape, a crescent shape, and a special shape.
The multifunctional visual catheter according to claim 1, wherein the number of said auxiliary cavities can be one or more.
The multifunctional visual catheter according to claim 1, wherein the light source cavity can adopt a groove or a sealed structure.
The multifunctional visual catheter according to claim 1, wherein the shooting channel and the auxiliary channel can be arranged in a sleeved manner.