CN115554166A - Front fixed type visual stomach tube device - Google Patents

Abstract

The invention relates to a front fixing type visual stomach tube device, which comprises a stomach tube main body, a visual unit and a fixing unit, wherein the fixing unit comprises a fixing piece, a rotating part and a fixing groove, the rotating part is arranged on the visual unit, the fixing piece is connected to the rotating part, the fixing groove extends inwards from the surface of the inner tube wall, when the visual unit is inserted into a channel, the fixing piece is opened and clamped in the fixing groove to complete the fixing between the visual unit and the stomach tube main body, and when the fixing piece is in a closed state, the visual unit can be taken out from the rear part of the stomach tube main body.

Description

Front fixed visual gastric tube device

technical field

The invention relates to the field of medical devices, in particular to a front fixed visible gastric tube device. .

Background technique

In some departments, such as gastroenterology, medical staff need to use gastric tubes to extract gastric juice from patients, and can also use gastric tubes to inject liquid into patients' stomachs to provide patients with necessary food and nutrition. The gastric tube is inserted through the nostril, passes through the pharynx, and reaches the stomach through the esophagus. During this process, due to the short distance between the esophagus and the airway, the gastric tube may be inserted into the airway by mistake, causing unnecessary damage to the patient. Therefore, when performing intubation, a visual unit is added for observation, which solves the problem of selection of the esophagus and airway, and avoids the possibility that the stomach tube may be inserted into the airway by mistake.

The traditional flexible gastric tube and the relatively hard visual unit cannot be well stabilized. Therefore, although the traditional visual gastric tube solves the problem of visualization during intubation, the gap between the visual unit and the gastric tube There is movement between the visual unit and the gastric tube, which cannot be fixed well between the visual unit and the gastric tube, so that when the gastric tube enters the patient's body, due to the shaking of the visual unit, there is a situation where the visual is not clear, resulting in unclear vision The situation affects the operation of medical staff. Therefore, the whole process of the gastric tube entering the body from the patient's nasal cavity is unpredictable, depending on the operating experience of the operator, this undoubtedly adds a lot of danger to the whole operation process, and brings physical and mental pain to the patient. Doubly disturbed.

Furthermore, if the visual unit is used, the initial fixed state must be guaranteed, and after the stomach tube is inserted to the designated position, the function of the visual unit has been completed, and the visual unit must be removed for the next step of the surgical operation. Therefore, a series of surgical operations need to be performed in a compact gastric tube, and a gastric tube device that can provide a clear view and ensure access to a predetermined surgical position is needed.

Contents of the invention

An advantage of the present invention is that it provides a front-fixed visible gastric tube device, which utilizes a fixing unit to fix the end of the gastric tube and a visual unit to ensure that see clearly.

Another advantage of the present invention is that it provides a front fixed visible gastric tube device, the visual unit of the front fixed visible gastric tube device enters the front end of a main body gastric tube, when the front fixed visible gastric tube device After placing the fixed visible gastric tube device into the patient's stomach, the visual unit can be taken out from the rear of the main gastric tube.

Another advantage of the present invention is that it provides a front-fixed visible gastric tube device, which controls the opening and closing state of the fixing part through a fixing part pulling wire, and the operation is quick convenient.

Another advantage of the present invention is that it provides a front-fixed visible gastric tube device. The front-fixed visible gastric tube device drives the elastic The element retracts, accomplishing the open and closed states of the fixture.

Another advantage of the present invention is that it provides a pre-fixed visible gastric tube device, which controls the bending of the front end of the gastric tube main body through the gastric tube traction wire, which is convenient The front fixed visible gastric tube device enters the patient's stomach.

Another advantage of the present invention is that it provides a front-fixed visible gastric tube device, which includes a visual unit, so as to prevent the front-fixed visible gastric tube device from After entering the patient's nasal cavity, it strays into the patient's airway, causing injury.

Another advantage of the present invention is that it provides a front-fixed visible gastric tube device, the fixing unit of the front-fixed visible gastric tube device includes a rotating part, and the rotating part is connected to the fixing part and the optical fiber sleeve, so that the fixing member is conveniently fixed in the fixing groove.

Another advantage of the present invention is to provide a front-fixed visual gastric tube device, which limits the visual assembly to the end of the gastric tube to maintain a stable field of view and ensure the smoothness of the operation. After the operation is carried out smoothly, the pre-fixed visual gastric tube device is inserted into the patient's pharynx and can enter the predetermined surgical position of the stomach by virtue of the visual component.

Another advantage of the present invention is to provide a front-fixed visible gastric tube device. The front-fixed visible gastric tube device can fix the visual component from the front end to the front end of the gastric tube main body. When the stomach is in the stomach, the front-mounted visible gastric tube device will not easily fall off the visible component and the main body of the gastric tube, reducing the risk of surgery.

Another advantage of the present invention is to provide a front-fixed visible gastric tube device, which can take out the visible component from the rear end, which is convenient for the patient to pass through the main body of the gastric tube. The stomach cleans the gastric juice or supplies and administers the nutrient solution.

Another advantage of the present invention is to provide a front-fixed visible gastric tube device, which cooperates with the visible component and the structure of the gastric tube main body to achieve active bending, so as to Reduce the pain experienced by patients during the operation, and more accurately enter the predetermined operation position.

Another advantage of the present invention is to provide a front-fixed visible gastric tube device, which can make greater use of the radial area, reduce unnecessary channel design, and expand the area for subsequent cleaning. The passage of gastric juice to prevent blockage.

Another advantage of the present invention is to provide a front-fixed visual gastric tube device, the state switching of the front-fixed visible gastric tube device is simple, and the visual component can be fixed on the fixed device without complicated operations. The transition from the state of the gastroscope main body to the state in which the visual component and the gastroscope main body are separated from each other.

Another advantage of the present invention is to provide a pre-fixed visual gastric tube device, which can observe the patient's pathological tissue during operation, and according to the tissue and visual The position of the components can be moved to focus, making the transmitted image clearer.

Other advantages and features of the present invention will be fully manifested by the following detailed description and can be realized by the combination of means and means particularly pointed out in the appended claims.

According to another aspect of the present invention, the present invention further provides a pre-fixed visible gastric tube device, the pre-fixed visible gastric tube device includes:

a stomach tube body, the stomach tube body includes an inner tube wall and has a channel, the channel runs through the stomach tube body;

a visual unit adapted to be plugged into the channel; and

A fixing unit, the fixing unit includes a fixing part, a rotating part and a fixing groove, the rotating part is arranged on the visible unit, the fixing part is connected to the rotating part, and the fixing groove The wall surface of the inner pipe is recessed and extended inwardly, and when the visual unit is plugged into the channel, the fixing member is opened and engaged with the fixing groove.

According to an embodiment of the present invention, wherein the visual unit includes a visible optical fiber and a fiber sleeve, the visible optical fiber is arranged inside the optical fiber sleeve, and the fixing member is connected to the optical fiber sleeve Tube.

According to an embodiment of the present invention, the front fixed visible gastric tube device further includes an operating handle, the operating handle is connected to the end of the main body of the gastric tube, and the operating handle includes a gastric tube pulling wire, A control part and a casing, one end of the gastric tube pulling wire is connected to the top end of the gastric tube main body, and the other end is connected to the control part, and the control part is arranged on the surface of the casing.

According to an embodiment of the present invention, the fixing unit further includes a fixing member pulling wire and a control unit, the control unit is arranged on the optical fiber sleeve, and one end of the fixing member pulling wire is connected to the rotating part, the other end is connected to the control unit, and the pulling wire of the fixing part is suitable for driving the rotating part to rotate.

According to an embodiment of the present invention, the fixing unit further includes an elastic element, one end of the elastic element is connected to the rotating part, and the other end is connected to the optical fiber sleeve of the visual unit.

According to an embodiment of the present invention, the fixing unit further includes a limiting portion, the limiting portion is arranged at the top of the fixing groove, and the limiting portion is adapted to be engaged with the fixing member.

According to another aspect of the present invention, the present invention further provides a pre-fixed visible gastric tube device, the pre-fixed visible gastric tube device includes:

a stomach tube body, the stomach tube body includes an inner tube wall and has a channel, the channel runs through the stomach tube body;

a visual unit adapted to be plugged into the channel; and

A fixing unit, the fixing unit includes a fixing part, a rotating part and a fixing groove, the rotating part is arranged on the visible unit, the fixing part extends from the inner tube wall surface, the The fixing groove extends inwardly from the peripheral surface of the rotating part.

According to another aspect of the present invention, the present invention further provides a pre-fixed visible gastric tube device, the pre-fixed visible gastric tube device includes:

A gastric tube main body, the gastric tube main body includes a main gastric tube and has a limiting groove;

a working channel, the working channel runs through the main gastric tube;

a viewable assembly positioned within the working channel; and

A limiting component, the limiting component is connected to the visual component, the front fixed visual gastric tube device has a spliced state, the limiting component is engaged in the limiting groove, the The visual component is located in the working channel, and the visual component is fixed on the front end of the main gastric tube to observe the insertion situation. The front fixed visual gastric tube device has a separated state, and the visible components, the limiting component leaves the working channel.

According to an embodiment of the present invention, wherein the working channel includes a first channel and a second channel, the first channel is located at the front end of the second channel, and the first channel and the second channel are simultaneously Shaft arrangement, the limiting groove is located between the first channel and the second channel, the limiting component includes a limiting member and has a mounting hole, the limiting member passes through the mounting hole is mounted on the viewable component.

According to an embodiment of the present invention, the limiting member includes an elastic unit and an extension unit, the rear end of the extension unit is connected to the visual component, and the front end is connected to the visual unit through the elastic unit , during the splicing process of the front-fixed visible gastric tube device, the front end of the extension unit is close to the visible component; The unit is away from the visible unit and abuts against the top wall of the limiting slot.

According to an embodiment of the present invention, wherein the limiting component includes a limiting member and a mounting member, the limiting member is installed on the visual component through the installing member, and the limiting member includes a An extension unit, the extension unit is adapted to be engaged with the limiting slot.

According to an embodiment of the present invention, the limiting member includes an airbag, the airbag includes an inflatable part and a vent part, the inflatable part is arranged on the peripheral side of the visible component, and the vent part communicates with The expansion part, the ventilation part is suitable for collecting and venting gas into the expansion part, and when the splicing of the front fixed visible gastric tube device is completed, the expansion part is against the main gastric tube inner wall.

According to an embodiment of the present invention, wherein the main gastric tube includes an inner ring and an outer ring, the inner ring and the outer ring are coaxially connected, the inner ring is located inside the outer ring, the The front end surface of the inner ring is located behind the front end surface of the outer ring.

According to an embodiment of the present invention, wherein the inner ring includes a first inner ring tube and a second inner ring tube, the first inner ring tube and the second inner ring tube are arranged at intervals, and the limit The position grooves are respectively located on the front end surfaces of the first inner ring pipe and the second inner ring pipe, and the working channel includes a first channel and a second channel, and the first channel and the second channel are respectively Arranged on both sides of the first inner ring pipe and the second inner ring pipe, the extension unit is adapted to pass through the first passage and the second passage.

According to an embodiment of the present invention, wherein the inner ring is distributed in a stepped shape, the limiting grooves are respectively located on the front faces of the steps, the working channel includes a main channel and an auxiliary channel, and the main channel is suitable for passing through As for the visible component, the auxiliary channel is connected to the inner ring, and the extension unit is adapted to pass through the auxiliary channel.

Further objects and advantages of the invention will fully appear from an understanding of the ensuing description and accompanying drawings.

These and other objects, features and advantages of the present invention are fully realized by the following detailed description, drawings and claims.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a front fixed visible gastric tube device according to the first preferred embodiment of the present invention.

Fig. 2A is the first schematic diagram of the pre-installation process of a pre-fixed visible gastric tube device according to the first preferred embodiment of the present invention.

Fig. 2B is the second schematic diagram of the pre-installation process of a pre-fixed visible gastric tube device according to the first preferred embodiment of the present invention.

Fig. 2C is the third schematic diagram of the pre-installation process of a pre-fixed visible gastric tube device according to the first preferred embodiment of the present invention.

Fig. 2D is the fourth schematic diagram of the pre-installation process of a pre-fixed visible gastric tube device according to the first preferred embodiment of the present invention.

Fig. 3 is a schematic diagram of the overall structure of a front fixed visible gastric tube device according to a second preferred embodiment of the present invention.

Fig. 4A is the first schematic diagram of the pre-installation process of a pre-fixed visible gastric tube device according to the second preferred embodiment of the present invention.

Fig. 4B is the second schematic diagram of the pre-installation process of a pre-fixed visible gastric tube device according to the second preferred embodiment of the present invention.

Fig. 4C is the third schematic diagram of the pre-installation process of a pre-fixed visible gastric tube device according to the second preferred embodiment of the present invention.

Fig. 5 is a schematic diagram of the overall structure of a front fixed visible gastric tube device according to a third preferred embodiment of the present invention.

Fig. 6A is the first schematic diagram of the pre-installation process of a pre-fixed visible gastric tube device according to the third preferred embodiment of the present invention.

Fig. 6B is the second schematic diagram of the pre-installation process of a pre-fixed visible gastric tube device according to the third preferred embodiment of the present invention.

Fig. 7 is an overall schematic diagram of a front fixed visible gastric tube device according to another preferred embodiment of the present invention.

Fig. 8A is the first schematic diagram of the pre-installation process of the pre-fixed visible gastric tube device according to the preferred embodiment of the present invention.

Fig. 8B is the second schematic diagram of the pre-installation process of the pre-fixed visible gastric tube device according to the preferred embodiment of the present invention.

Fig. 8C is the third schematic diagram of the pre-installation process of the pre-fixed visible gastric tube device according to the preferred embodiment of the present invention.

Fig. 8D is the fourth schematic diagram of the pre-installation process of the pre-fixed visible gastric tube device according to the preferred embodiment of the present invention.

Fig. 9 is an overall schematic diagram of a front fixed visible gastric tube device according to another preferred embodiment of the present invention.

Fig. 10 is a partially enlarged view of the front fixed visible gastric tube device according to the preferred embodiment of the present invention.

Fig. 11 is an overall schematic diagram of a front fixed visible gastric tube device according to another preferred embodiment of the present invention.

Fig. 12A is the first schematic diagram of the pre-installation process of the pre-fixed visible gastric tube device according to the preferred embodiment of the present invention.

Fig. 12B is the second schematic diagram of the pre-installation process of the pre-fixed visible gastric tube device according to the preferred embodiment of the present invention.

Fig. 13 is an overall schematic diagram of a front fixed visible gastric tube device according to another preferred embodiment of the present invention.

Fig. 14 is a partially enlarged view of the front fixed visible gastric tube device according to the preferred embodiment of the present invention.

detailed description

The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

Those skilled in the art should understand that in the disclosure of the present invention, the terms "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, so the above terms should not be construed as limiting the present invention.

It can be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element The quantity can be multiple, and the term "a" cannot be understood as a limitation on the quantity.

Embodiment one:

As shown in FIGS. 1 to 2D , a pre-fixed visible gastric tube device according to a preferred embodiment of the present invention is illustrated. The front-mounted visible gastric tube device 1 is suitable for extracting gastric juice from the patient, and can also use the gastric tube to inject liquid into the patient's stomach to provide the patient with necessary food and nutrition.

For the convenience of description, in the embodiment of the present invention, the part inserted into the patient's nasal cavity during the use of the front fixed visible gastric tube device 1 is used as the part of the front fixed visible gastric tube device 1 . The outer side, the side part opposite to the outer side of the front-mounted visible gastric tube device 1 is its inner side.

The front fixed visible gastric tube device 1 includes a gastric tube main body 10, a visual unit 20, a fixing unit 30 and an operating handle 40. The gastric tube main body 10 has a channel 11, and the channel 11 From the outer end of the gastric tube main body 10 , it is recessed and extends inwardly, passing through the gastric tube main body 10, the visual unit 20 is suitable for being inserted into the channel 11, and the fixing unit 30 is arranged on the The visual unit 20 is used to fix the visual unit 20 to the gastric tube main body 10 , the operating handle 40 is connected to the end of the gastric tube main body 10 , and the operating handle 40 is used.

That is to say, when the medical personnel use the front-mounted visible gastric tube device 1, they first insert the visual unit 20 into the channel 11 of the gastric tube main body 10 outside the patient's body, and pass The fixing unit 30 fixes the visual unit 20 to the gastric tube main body 10, so that the front-mounted visual gastric tube device 1 does not pass through the nasal cavity of the patient into the esophagus and then reaches the stomach. Because of the relative movement between the visualization unit 20 and the gastric tube main body 10, the situation of unclear visualization may occur, thereby reducing the risk during the treatment.

The stomach tube main body 10 further includes an inner tube wall 12 and has a stomach tube mouth 13, the inner tube wall 12 is arranged inside the stomach tube main body 10, in other words, the channel 11 passes through the stomach The outer end surface of the tube main body 10 extends inwardly, the inner tube wall 12 is formed inside the gastric tube main body 10, the gastric tube mouth 13 is arranged on the outer end surface of the gastric tube main body 10, and the gastric tube main body 10 The nozzle 13 communicates with the passage 11, and the gastric tube main body 10 is suitable for being inserted into the nasal cavity of the patient, enters the esophagus, and then reaches the stomach, and extracts gastric juice through the passage 11 and the gastric nozzle 13. The tube injects fluid into the patient's stomach to provide the patient with the necessary food and nutrients.

It is worth mentioning that, in this preferred embodiment, the visualization unit 20 preferably adopts a visible optical fiber to facilitate the entry and exit of the visualization unit 20 through the channel 11 of the gastric tube main body 10 . The visualization unit 20 includes a visible optical fiber 21 and a fiber optic guide 22, the optical fiber guide 22 is sheathed outside the visible optical fiber 21, preventing the visible optical fiber 21 from directly contacting the gastric tube main body 10. Contact, during the process of the visible optical fiber 21 going in and out, will cause damage to the gastric tube main body 10 .

What is more worth mentioning is that when the optical fiber sleeve 22 is sheathed outside the visible optical fiber 21, the end of the visible optical fiber 21 is not contained by the optical fiber sleeve 22. When the visual unit 20 is inserted into the channel 11 of the gastric tube main body 10, the end of the visual optical fiber 21 protrudes slightly from the gastric tube mouth 13 of the gastric tube main body 10, so that the front After the fixed visible gastric tube device 1 enters the patient's nasal cavity, it can have a clear view and is convenient for medical staff to operate.

The fixing unit 30 includes a fixing part 31, a rotating part 32 and a fixing part pulling wire 33. The fixing part 31 is arranged at the front end of the optical fiber ferrule 22. In other words, the fixing part 31 is pulled from the The front part of the fiber optic ferrule 22 extends outward at a predetermined angle, and the rotating part 32 is arranged at the end of the fixing part 31, that is to say, the fixing part 31 is rotatably rotated by the rotating part 32. Connected to the optical fiber sleeve 22, the fixing member pulling wire 33 is connected to the rotating part 32, and the medical personnel control the rotation angle of the fixing member 31 by controlling the fixing member pulling wire 33, and then The relative volume between the visualization unit 20 and the gastric tube main body 10 can be controlled to complete the entry and removal of the visualization unit 20 .

Specifically, there is a certain angle between the fixing member 31 and the fiber optic ferrule 22, that is, when the fixing member 31 is in the unfolded state, the angle between the fixing member 31 and the fiber optic ferrule 22 They are connected at a predetermined angle. When the fixing member 31 is in the closed state, the fixing member 31 and the optical fiber sleeve 22 are in a bonded state. Further, the opening and closing states of the fixing member 31, medical care Personnel can control the rotating part 32 by controlling the pulling wire 33 of the fixing part, and then control the opening and closing state of the fixing part 31 , so that the visual unit 20 can be easily entered and taken out. When the fixing member 31 is in the closed state, the fixing member 31 can be taken out from the channel 11 of the gastric tube main body 10, and when the fixing member 31 is in the open state, the fixing member 31 is taken out It is fixedly engaged with the gastric tube main body 10 .

Further, the fixing unit 30 further includes a control unit 34, the control unit 34 is arranged at the tail of the fiber optic guide 22, one end of the fixing member pulling wire 33 is connected to the rotating part 32, and the other end is connected to the The control unit 34, that is to say, the medical staff can rotate the rotating part 32 through the control unit 34, and then realize the opening and closing state of the fixing member 31, and realize the entry of the visual unit 20 and take out.

It is worth mentioning that the gastric tube main body 10 further has a fixing groove 301, which is arranged on the inner top end of the gastric tube main body 10, and further, the fixing groove 301 extends from the gastric tube main body The upper part of the inner pipe wall 12 of the 10 extends inwardly and concavely.

What is more worth mentioning is that when the front-mounted visible gastric tube device 1 needs to be used, the medical personnel control the fixing member to pull the wire 33 to make the rotating part 32 rotate, thereby making the fixing A piece 31 fits on the optical fiber sleeve 22, and the fixing piece 31 is in a closed state. The fixing piece 31 is inserted from the stomach tube opening 13 of the gastric tube main body 10, and when the fixing piece 31 reaches the When the fixing groove 301 of the gastric tube main body 10 is described, the medical personnel control the pulling wire 33 of the fixing part, so that the fixing part 31 rotates and is in an open state to achieve the purpose of fixing, so that the front fixing type can be seen During the process of the gastric tube device 1 entering the patient's nasal cavity and reaching the stomach, the entry situation of the pre-fixed visible gastric tube device 1 can be observed through the visual unit 20 .

The fixing unit 30 further includes a limiting part 3011, the limiting part 3011 is arranged on the top of the fixing groove 301, so that when the visual unit 20 enters the channel 11 of the gastric tube main body 10 Since the fixing groove 301 extends inwardly from the upper part of the inner tube wall 12 of the gastric tube main body 10, when the fixing member 31 is in the open state, the limiting part 3011 and the fixing The top ends of the parts 31 resist each other, so that the limiting part 3011 can engage and limit the fixing part 31, so as to achieve the purpose of fixing the visual unit 20 and the gastric tube main body 10, so that the medical staff can The relative movement between the visualization unit 20 and the gastric tube main body 10 will not cause unclear visualization and affect the patient's treatment.

Furthermore, in this preferred embodiment, the number of the fixing parts 31 is preferably set to three, and the three fixing parts 31 are evenly distributed on the upper part of the optical fiber guide 22, that is to say, The angle between the two fixing pieces 31 is 120 degrees. Those skilled in the art should understand that the number of the fixing elements 31 is not a limitation of the present invention.

It is worth mentioning that, in this preferred embodiment, the fixing groove 301 is preferably set to extend inwardly around the upper part of the inner tube wall 12 of the gastric tube main body 10, so that the visible unit When 20 enters the gastric tube main body 10 , the fixing member 31 can be easily engaged and fixed with the limiting portion 3011 of the fixing groove 301 . In another preferred embodiment, the number of the fixing grooves 301 can also be set to be consistent with the number of the fixing pieces 31 . In other words, in this preferred embodiment, the number of the fixing slots 301 is one, and the area of the fixing slots 301 is larger. In other preferred embodiments, the number of the fixing slots 301 can be equal to The number of the fixing parts 31 is the same, so that each of the fixing parts 31 can be engaged and fixed with the corresponding fixing groove 301 to achieve the effect of stabilizing the visual unit 20 and the gastric tube main body 10 . Those skilled in the art should understand that the number of the fixing slots 301 is not a limitation of the present invention.

The operating handle 40 has a pulling channel 41, an instrument channel 42 and includes a gastric tube pulling wire 43, a control member 44 and a housing 45, and one end of the gastric tube pulling wire 43 is connected to the gastric tube One side and the other end of the inner pipe wall 12 of the main body 10 are connected to the control member 44 , and the control member 44 is arranged on the surface of the housing 45 . That is to say, medical personnel can control the bending of the end of the gastric tube main body 10 through the control member 44 . When the front-mounted visible gastric tube device 1 enters the patient's nasal cavity, since the passage from the patient's nasal cavity to his stomach is not a straight line, the front-mounted visible gastric tube device 1 is required. Ability to bend to gain access.

The traction channel 41 extends inwardly from the surface of the casing 45 so as to communicate with the channel 11 of the gastric tube main body 10 , and the traction channel 41 is adapted to provide an installation channel for the gastric tube traction wire 43 . The instrument channel 42 extends inwardly from the bottom surface of the casing 45 so as to communicate with the channel 11 of the gastric tube main body 10 , and the instrument channel 42 provides a channel for removing the visualization unit 20 . That is to say, in this preferred embodiment, the visualization unit 20 enters from the gastric tube opening 13 at the front end of the gastric tube main body 10, when the front fixed visual gastric tube device 1 enters the patient After the stomach, the visualization unit 20 needs to be taken out, and the instrument channel 42 provides a channel for taking out the visualization unit 20 . Further, since the traction channel 41 only needs to provide an installation channel for the gastric tube traction wire 43, the inner diameter of the traction channel 41 is preferably set to be much smaller than the inner diameter of the instrument channel 42, so as to reduce The overall volume of the front fixed gastric tube device 1 can be seen.

The following exemplarily introduces the use process of the pre-fixed visible gastric tube device 1 in this preferred embodiment.

Before the front-mounted visible gastric tube device 1 enters the patient's nasal cavity, the medical personnel need to operate the control unit 34 so that the fixing member 31 is in a closed state, that is, the fixing member is attached to the The fiber optic catheter 22 reduces the lateral volume of the visualization unit 20 so as to facilitate access to the channel 11 of the gastric tube main body 10 .

After the visual unit 20 enters the channel 11 of the gastric tube main body 10, and when the fixing member 31 reaches the fixing groove 301, the medical personnel need to operate the control unit 34 to make the fixing The member 31 is opened, so that the fixing unit 30 can be engaged with the fixing groove 301 . Further, the fixing part 31 is in an open state, and the volume of the fixing unit 30 is increased, so that the fixing part 31 can be engaged with the limiting part 3011 of the fixing groove 301 to fix the position. The purpose of the visualization unit 20 and the gastric tube main body 10 .

Then insert the front-mounted visible gastric tube device 1 into the patient's nasal cavity. Since the passage from the patient's nasal cavity to his stomach is not a straight line, the front-mounted visible gastric tube device 1 is required. The entrance can only be achieved by bending, and the medical staff controls the bending of the head of the gastric tube main body 10 by manipulating the gastric tube pulling wire 43 , and enters the stomach through the patient's nasal cavity. At the same time, the medical staff can observe the insertion of the front-mounted visible gastric tube device 1 through the visualization unit 20, especially in the selection of the esophagus and airway, which can avoid the insertion of the front-mounted visible gastric tube device. 1 Insert into the airway.

After the front-mounted visible gastric tube device 1 enters the patient's stomach, the medical staff closes the fixing part 31 through the control unit 34 and is in a closed state, which reduces the volume of the visible unit 20 , so that the visual unit 20 is taken out from the instrument channel 42 .

Embodiment two:

As shown in Fig. 3 to Fig. 4C, a pre-fixed visible gastric tube device provided by the second preferred embodiment of the present invention is illustrated. The pre-fixed visible gastric tube device in this preferred embodiment is implemented as a modification of the above-mentioned first preferred embodiment. In the above-mentioned first preferred embodiment, the fixing member 31 is adapted to be engaged and fixed with the fixing groove 301 of the gastric tube main body 10, and the opening and closing states of the fixing member 31 are determined by the fixing In this preferred embodiment, the opening and closing states of the fixing member 31 can be achieved by pressing against the inner tube wall 12 of the gastric tube main body 10 accomplish.

Specifically, in this preferred embodiment, the fixing unit 30 further includes an elastic element 35, one end of the elastic element 35 is connected to the rotating part 32, and the other end is connected to the said visible unit 20. Fiber optic sleeve 22, that is to say, when the visualization unit 20 enters the channel 11 of the stomach tube body 10, the fixing member 31 is in an open state, when the visualization unit 20 enters the After the channel 11 of the gastric tube main body 10, the fixing member 31 is squeezed by the inner tube wall 12 of the gastric tube main body 10, so that the elastic element 35 is squeezed and at the same time drives the rotation part 32 rotates so that the fixing part 31 is in a closed state. The upper part of the pipe wall 12 is concavely extended inwardly.

Therefore, the diameter of the fixing groove 301 is larger than the diameter of the channel 11, so when the fixing member 31 reaches the fixing groove 301 of the gastric tube main body 10, it will not be squeezed, and the elastic element 35 will not be squeezed. , the fixing member 31 is in an open state. The fixing member 31 engages with the limiting portion 3011 located in the fixing slot 301 .

Further, the elastic element 35 has a certain elastic strength, that is to say, when the fixing member 31 is in the open state inside the fixing groove 301, the fixing member is not in a fully opened state, so that the fixing The member 31 has a certain strength to support the extrusion of the inner tube wall 12 of the gastric tube main body 10, so that the fixing unit 20 is more firmly fixed on the front end of the inner tube wall 12 of the gastric tube main body 10 .

After the front fixed visible gastric tube device 1 enters the patient's stomach, the medical personnel only need to pull out the visible unit 20 backward. Since the longitudinal distance of the fixing groove 301 is relatively short, when the visual unit 20 is pulled out backward, the elastic element 35 is squeezed again, so that the fixing member 31 is in a closed state, so that the movable The viewing unit 20 can be easily taken out from the instrument channel 42, so that the front end can be entered and the rear end can be taken out.

Further, when the fixing member 31 engages and stops at the limiting part 3011 of the fixing groove 301, the visual unit 20 and the gastric tube main body 10 are firmly connected, so that the front fixing type can When the gastric tube device 1 enters the patient's body, the relative positional relationship between the relatively hard visible optical fiber 21 and the flexible gastric tube main body 10 will not cause unclear visibility. That is to say, the visual unit 20 can enter from the front end of the gastric tube main body 10, and the fixing part 31 is opened after entering, and through the mutual engagement between the fixing part 31 and the fixing groove 301, Complete the fix. When the front-mounted visible gastric tube device 1 enters the patient's stomach, the fixing member 31 is closed, so that the visual unit 20 can be easily taken out from the rear of the gastric tube main body 10 , and the operation is convenient.

Embodiment three:

Figures 5 to 6B illustrate a front-mounted visible gastric tube device provided by a third preferred embodiment of the present invention. The pre-fixed visible gastric tube device in this preferred embodiment is implemented as a modification of the above-mentioned first preferred embodiment.

In the above-mentioned first preferred embodiment, the fixing groove 301 is inwardly recessed from the upper part of the inner tube wall 12 of the gastric tube main body 10, and the fixing member 31 is outward from the surface of the optical fiber catheter 22. extend at a predetermined angle, so that the fixing member 31 can interfere with the limiting portion 3011 of the fixing groove 301 in the open state, so as to achieve the purpose of fixing the visual unit 20 and the gastric tube main body 10 so that when the pre-fixed visible gastric tube device 1 enters the patient's body, it will not be caused by the relative positional relationship between the relatively hard visible optical fiber 21 and the flexible gastric tube main body 10 Unclear situation.

In this preferred embodiment, the fixing groove 301A is arranged on the visual unit 20A, and the fixing member 31A is arranged on the inner tube wall 12A of the gastric tube main body 10A. Specifically, the fixing member 31A extends outward from the upper surface of the inner tube wall 12A of the gastric tube main body 10A. The rotating part 32 is arranged on the optical fiber guide tube 22A, and the fixing groove 301A extends inwardly from the surface of the rotating part 32A, and the rotating part 32A is arranged in an annular shape, that is, when the After the visual unit 20A enters the channel 11A of the gastric tube main body 10A, the fixing part 31A is adapted to be engaged by the rotating part 32A, so that the visual unit 20A and the gastric tube main body 10A are engaged with each other The visual unit 20A is fixed so that the front fixed visible gastric tube device 1 can be clearly seen after entering the patient's body.

The visual unit 20A enters the channel 11A of the gastric tube main body 10A from the front end of the gastric tube main body 10A. When the visual unit 20A reaches the fixed unit 30A, the rotating part 32A is The fiber optic sleeve 22A protrudes, and the fixing part 31A is engaged by the rotating part 32A. When the front-mounted visible gastric tube device 1 enters the patient's stomach, the medical staff can rotate the adjustable The viewing unit 20A, so that the fixing groove 301A and the fixing member 31A overlap in the longitudinal direction, so that the fixing member 31A can pass through the fixing groove 301A, so that the viewing unit 20A can be separated from the gastric tube main body 10A out of the channel 11A.

It is worth mentioning that, in this preferred embodiment, the number of the fixing groove 301A and the fixing piece 31A is preferably set to two, so as to facilitate the correspondence between the fixing groove 301A and the fixing piece 31A , to facilitate the removal of the visual unit 20A from the rear of the gastric tube main body 10A. Those skilled in the art should understand that the number of the fixing slots 301A and the fixing pieces 31A is not a limitation of the present invention.

As shown in the figure, a front fixed visible gastric tube device according to a preferred embodiment of the present invention is schematically illustrated. The front fixed visible gastric tube device is used for gastroenterology surgery. The front fixed visible gastric tube device includes a gastric tube main body 910 and a visual component 930 . The visual assembly 930 is detachably installed on the gastric tube main body 910 . Specifically, when the front fixed visible gastric tube device is outside the patient, the gastric tube main body 910 and the visual component 930 are separated from each other. The visual component 930 is installed on the gastric tube main body 910 to ensure that the visual component 930 and the gastric tube main body are 910 are fixedly connected to each other. When the front-fixed visual gastric tube device reaches a predetermined operation position, the visual component 930 can be separated from the gastric tube main body 910 . That is to say, the operator can take out the visual assembly 930 and leave the gastric tube main body 910 to provide a follow-up operation channel in the patient's body.

It is worth mentioning that since the patient's esophagus and nasal cavity have fixed widths, the radial width of the pre-fixed visible gastric tube device is limited. The visual component 930 is preferably detachably installed on the gastric tube main body 910, so as to obtain a larger channel when cleaning the gastric juice during the subsequent surgical operation, so as to prevent the occurrence of the pre-fixed visual gastric tube device. of the jam.

For ease of description, the insertion direction of the front-mounted visible gastric tube device is defined as the front, and the reverse direction is defined as the rear.

In the first preferred embodiment of the present invention, the stomach tube body 910 includes a main stomach tube 911 and a plurality of traction ropes. The main gastric tube 911 is used as an installation body, and the traction rope is installed on the main gastric tube 911 . The main gastric tube 911 also includes a plurality of snake-bone components, and the snake-bone components are coaxially superimposed on each other. The snake member provides bi-directional bending, and the snake member is connected to the traction rope. Specifically, the traction rope runs through and is distributed on both sides of the snake bone member. More specifically, the tops of the traction ropes on both sides are fixedly connected to the serpentine member at the top. In this way, when the traction rope on the left side is tightened, the snake bone component can bend to the left; when the traction rope on the right side is tightened, the snake bone component can bend to the right.

Thus, the snake bone member cooperates with the traction rope to realize the active bending of the main gastric tube 911 . The front fixed visible gastric tube device also includes an operating component 920 connected to the main gastric tube 911 , in other words, the operating component 920 is located behind the main gastric tube 911 end. Specifically, the operation component 920 includes a control part 921 and a grip part 922 , the control part 921 is connected to the traction rope, that is, the traction rope is located at the front end of the control part 921 . The control member 921 is adapted to control the traction ropes on both sides, so as to realize the left and right bending of the snake bone member. The gripping part 922 provides the operator with a gripping body, and the control part 921 is installed on the gripping part 922 so as to facilitate the operator to control and realize the left and right bending of the snake bone member.

It is worth mentioning that, by operating the traction rope to pull the snake bone member to realize the left and right bending of the main gastric tube 911, and then cooperate with the visual assembly 930, the front fixed visible gastric tube device During the insertion process, it can be actively bent at a predetermined position. According to the specific structure of the patient's nasal cavity, as well as the selection of the throat, esophagus and trachea, the front end of the front fixed visible gastric tube device can be satisfied by the operator's active operation. The selection of the insertion position can avoid damage to the mucous membrane of the inner wall of the throat of the patient, pharyngeal ulcer, and suffocation induced by misoperation, which reduces the operation risk and improves the patient's surgical experience.

The visual assembly 930 optionally adopts a fiberscope and an electronic mirror. The visual assembly 930 has a front end and a rear end, and the visual assembly 930 penetrates through the gastric tube main body 910 . The front end is suitable for providing a surgical field of view, and the rear end is suitable for being connected to an image display device, that is to say, the front end plays a visual role, and the rear end plays a transmission role, through which the image display device detects vision is projected.

The front fixed visible gastric tube device has a working channel 980 , and the working channel 980 runs through the gastric tube main body 910 . Specifically, the working channel 980 extends backward from the front end of the main gastric tube 911 and runs through it. The working channel 980 is suitable for receiving the visual assembly 930 , that is, the visual assembly 930 is suitable for being placed in the working channel 980 . Specifically, in the unassembled state of the front fixed visual gastric tube device, the visual component 930 is not located in the working channel. When the pre-fixed visual gastric tube device is assembled but not inserted into the patient's body, the visual component 930 is located inside the working channel 980, and the front end of the visual component 930 is fixed to the gastric tube The front end of the main body 910 , in other words, the visual component 930 is fixed in the working channel 980 .

It is worth mentioning that the front-mounted visible gastric tube device also includes a limiting component 940, which is set on the visible component 930, in other words, the limiting The assembly 940 is engaged with the gastric tube main body 910 . The limiting component 940 provides a fixed connection of the visual component 930 to the gastric tube main body 910 . Specifically, the working channel 980 also includes a first channel 981 and a second channel 982 . The first channel 981 communicates with the second channel 982 , and the first channel 981 is located at the front end of the second channel 982 . The first channel 981 and the second channel 982 are preferably coaxial to ensure that the visual assembly 930 enters the working channel 980 smoothly.

What is more worth mentioning is that the gastric tube main body 910 has a limiting groove 913, and the limiting groove 913 is located inside the main gastric tube 911, specifically, the limiting groove 913 is located in the first channel 981 and the connection of the second channel 982. In other words, the front end of the limiting groove 913 communicates with the first channel 981 , and the rear end communicates with the second channel 982 . The limiting component 940 is adapted to engage with the limiting groove 913 . The limiting component 940 is sleeved on the viewing component 930 . The limiting component 940 is adapted to pass through the first channel 981 and the second channel 982, and the limiting component 940 is adapted to be limited by the limiting groove 913, so as to realize the front end of the visible component 930 It is fixed on the main body 910 of the gastric tube.

The limiting component 940 includes a limiting component 942 and has a mounting hole, the mounting hole is located in the limiting component 942 . The mounting hole allows the visual assembly 930 to pass through. That is to say, the limiting member 942 is sleeved on the visual component 930 through the installation hole. The limiting member 942 further includes a plurality of elastic units 9421 and a plurality of extension units 9422 , and the extension units 9422 are foldably connected to the visual component 930 . The elastic unit 9421 is connected to the extension unit 9422 to maintain two states of the extension unit 9422 . Specifically, the elastic unit 9421 has elasticity, so that the extension unit 9422 is stretched to be close to the visual component 930 . When the elastic unit 9421 is fully expanded, the extension units 9422 are far away from the visual component 930 . In other words, the extension unit 9422 opens in an umbrella shape.

Specifically, the limiting component 940 is located at the front end of the viewing component 930 . When the front-mounted visible gastric tube device is assembled, the rear end of the visible component 930 enters the working channel 980 first, passes through the first channel 981 and the limiting groove 913 to the The rear end of the second channel 982 . The limiting component 940 is optionally umbrella-shaped in this embodiment, and when the limiting component 940 enters the first channel 981, the extension unit 9422 is squeezed by the inner wall of the first channel 981 Press, so that the elastic unit 9421 is compressed, and the extension units 9422 are close to the visual component 930. At this time, the limiting component 940 is sleeved on the visual component 930 to become a slender conical.

The limiting assembly 940 continues to move backward, and when the front end of the extension unit 421 reaches the limiting groove 913, the extending unit 421 expands toward the inner wall of the limiting groove 913, so that the elastic unit 9421 Being stretched, the extension units 421 are away from the visual component 930 from each other. At this time, the top of the extension unit 421 abuts against the top wall of the limiting groove 913 . At this time, the extension unit 421 has a maximum expansion range. That is to say, at this time, the limiting component 940 is limited by the limiting groove 913 . In other words, the visual component 930 is fixedly connected to the gastric tube main body 910 through the limiting component 940 , and keeps the front end level with or higher than the front end surface of the main gastric tube 911 . The limiting component 940 is engaged with the limiting groove 913 to keep the relative position of the visual component 930 in the working channel 980 unchanged, so that the visual field obtained by the visual component 930 is the clearest. At this time, the splicing state of the front-fixed visible gastric tube device is completed, and the front-fixed visible gastric tube device can be inserted to a predetermined operation position by means of the visual assembly 930 .

Then, when the front-mounted visible gastric tube device reaches a predetermined position, the function of the visual component 930 has been realized, and the visual component 930 and the gastric tube main body 910 need to be separated from each other. The limiting assembly 940 continues to move backward until the rear end of the extension unit 9422 touches the rear end surface of the limiting groove 913 . At this time, the extension unit 9422 is pressed by the second channel 982 , and the extension units 9422 approach the visual component 930 . The elastic unit 9421 is compressed. The limiting component 940 recovers to be an elongated conical shape. At this time, the limiting assembly 940 can be taken out from the working channel 980 smoothly. The working channel 980 is connected to the patient's stomach and the outside world for the next operation.

In the second preferred embodiment of the present invention, the main change from the above embodiment is the main gastric tube 911 . The main gastric tube 911 includes an inner ring 9111A and an outer ring 9112A, and the inner ring 9111A is located inside the outer ring 9112A. That is to say, the outer ring 9112A is wrapped around the inner ring 9111A. In other words, the inner ring 9111A and the outer ring 9112A are coaxially arranged.

In particular, the inner ring 9111A further includes a first inner ring tube 91111A and a second inner ring tube 91112A. The first inner ring tube 91111A and the second inner ring tube 91112A are mirror-symmetrical along the central axis of the working channel 980 . That is to say, the first inner ring pipe 91111A and the second inner ring pipe 91112A are arranged at intervals. In other words, the first inner ring tube 91111A and the second inner ring tube 91112A together form a circular ring with notches on both sides.

In this embodiment, the working channel 980 includes a first channel 981A and a second channel 982A, and the first channel 981A and the second channel 982A are notches of the above-mentioned circular ring. That is to say, the first passage 981A and the second passage 982A are distributed on both sides of the first inner ring pipe 91111A and the second inner ring pipe 91112A. The first channel 981A and the second channel 982A communicate with the front end and the rear end of the front-mounted visible gastric tube device, that is to say, the first channel 981A and the second channel 982A run through the The main gastric tube 911. The working channel 980 also includes a main channel 983A, the main channel 983A is adapted to pass through the visual component 930 , that is, the main channel 983A and the visual component 930 are coaxial.

It is worth mentioning that, in this embodiment, the limiting component 940 includes a limiting component 942A and a mounting part, and the limiting component 942A is mounted on the visual component 930 through the mounting component. The limiting member 942A includes an extension unit 9422A, and the extension unit 9422A is disposed outside the visual component 930 . In order to maintain the symmetry and aesthetics of the front fixed visible gastric tube device, the number of the extension units 9422A is preferably two, and the actual number of the extension units 9422A is not limited by the present invention. The extension units 9422A are respectively distributed on both sides of the visual component 930 .

What is more worth mentioning is that the gastric tube main body 910 has a limiting groove 913A, and the limiting groove 913A is respectively provided in the first inner ring tube 91111A and the second inner ring tube 91112A. The extension unit 9422A is adapted to be engaged with the limiting slot 913A. The extension unit 9422A is adapted to pass through the first channel 981A and the second channel 982A. When the front-mounted visible gastric tube device is spliced, the visual component 930 enters from the front end of the main gastric tube 911, passes through the main channel 983A to the extension unit 9422A and is limited by the blocked by slot 913A. At this moment, the extension unit 9422A is limited by the limiting groove 913A, so that the visual component 930 cannot pass through the working channel 980 , and only the visual component 930 is kept inside the working channel 980 . At this time, the splicing state of the pre-fixed visible gastric tube device is completed, the front end of the visible component 930 is located at the front end of the main gastric tube 911, and the front end of the visible component 930 is kept due to the The arrangement is stable based on the engaging relationship between the limiting component 940 and the limiting groove 913A. The pre-fixed visible gastric tube device in the spliced state can be smoothly passed into the patient's body, and the front end of the main gastric tube 911 can be sent to the predetermined operation position by virtue of the clearly observed visible component 930 . During this process, only a forward force is applied, so that the extension unit 9422A is always located inside the limiting groove 913A.

Then, by operating the viewing assembly 930 at the rear end, the viewing assembly 930 is pushed forward by a small distance so that the extension unit 9422A breaks away from the limiting groove 913A, and rotates to 90 degrees in any direction, Such that the extension units 9422A distributed on both sides are respectively located in the first channel 981A and the second channel 982A. At this time, by operating the rear end of the visual component 930 to move the extension unit 9422A along the first channel 981A and the second channel 982A, the visible component connected to the limiting component 940A can be smoothly Viewing component 930A is delineated. That is to say, at this moment, the visible component 930 and the limiting component 940 are separated from the gastric tube main body 910 . At this time, the space of the main channel 983A is released to communicate with the front end and the rear end of the main gastric tube 911 as a channel for drug administration, nutrient solution supply, and gastric juice cleaning for subsequent operations.

In particular, in this embodiment, the line connecting the limiting grooves 913A distributed on both sides is perpendicular to the line connecting the first channel 981A and the second channel 982A distributed on both sides. That is to say, the limiting groove 913A, the first passage 981A and the second passage 982A are arranged in a cross arrangement. Seen from the radial direction, the center of the main passage 983A is the axis, and the angle formed by the center of the limiting groove 913A to the centers of the first passage 981A and the second passage 982A is 90°.

It is worth mentioning that the visible component 930 has a certain distance from the outer ring 9112A, and the front end of the inner ring 9111A has a certain distance from the front end of the outer ring 9112A. Specifically, the plane where the front end of the inner ring 9111A is located is located behind the plane where the front end of the outer ring 9112A is located. When the operator operates the rear end of the visual assembly 930, the extension unit 9422A is always located inside the outer ring, specifically, the extension unit 9422A is always against the inner wall of the outer ring 9112A. The distance between the front end of the inner ring 9111A and the front end of the outer ring 9112A is such that the extension unit 9422A cannot be separated from the outer ring 9112A, and the extension unit 9422A is always located in the outer ring 9112A. In this way, it can be ensured that the extension unit does not change its position in the horizontal direction, so as to pass through the first channel 981A and the second channel 982A smoothly. This facilitates the smooth removal of the visible component 930 and the limiting component 940 .

In the third preferred embodiment of the present invention, the main change from the above embodiment is the limiting component 940 . The limiting component 940 includes a limiting member 942B and has a mounting hole, and the limiting member 942B is optionally ring-shaped and sleeved on the visual component 930 . Specifically, the limiting member 942B is sleeved on the visual component 930 through the installation hole. The limiting member 942B is located at the front end of the viewing component 930 .

The limiting member 942B is specifically an airbag 9423B in this embodiment, and the airbag 9423B includes an inflatable part 94231B and a vent part 94232B, and the vent part 94232B is located on the peripheral side of the visual component 930, so The ventilation part 94232B communicates with the inflation part 94231B, and the inflation part 94231B has two states, one is an uninflated state, and the other is an uninflated state. Specifically, when the ventilation part 94232B does not provide gas to the inflation part 94231B, the inflation part 94231B is in a flattened shape, and at this time, the airbag 9423B is sleeved on the front end of the visual component 930 . The airbag 9423B is a heterosexual airbag. At this time, the airbag 9423B and the visual component 930 can move freely in the working channel 980 smoothly. That is to say, the visual component 930 cannot be fixed on the gastric tube main body 910 .

When the ventilation part 94232B supplies gas to the inflation part 94231B, the inflation part 94231B is in an expanded state, and the inflation part 94231B expands outward. Specifically, the visual assembly 930 is placed in the working channel 980, and when the front end of the visual assembly 930 is located at the front end of the main gastric tube 911, the ventilation part 94232B is ventilated to the inflation part 94231B . The originally collapsed expansion part 94231B increases in volume and presses against the inner wall of the main gastric tube 911 . That is to say, the inflated portion 94231B is in the shape of a circular column, and the outer surface of the inflated portion 94231B is against the inner wall of the main gastric tube 911 . At this moment, the splicing state of the front fixed visible gastric tube device has been completed. In other words, the visual component 930 is firmly connected to the gastric tube main body 910 through the balloon 9423B.

The pre-fixed visible gastric tube device in the spliced state is inserted into a predetermined operation position. The air filled in the inflation portion 94231B is drawn away through the ventilation portion 94232B, so that the inflation portion 94231B returns to a collapsed state. At this time, since the radial diameter of the visible assembly 930 is smaller than the inner diameter of the main gastric tube 911 . The visual assembly 930 and the airbag 9423B can be taken out smoothly along the working channel 980, keeping the working channel 980 connected to the patient's stomach and the outside world for subsequent surgical operations.

In the fourth preferred embodiment of the present invention, the main change from the above embodiments is the main gastric tube 911, which includes an inner ring 9111C and an outer ring 9112C. The outer ring 9112C is located outside the inner ring 9111C. In this embodiment, the radial projection of the inner ring 9111C is a circular ring with a gap. In the axial direction, the front end surface of the inner ring 9111C is arranged in steps. However, there is a predetermined distance from the frontmost surface of the inner ring 9111C to the front end surface of the outer ring 9112C. That is, the inner ring 9111C is surrounded by the outer ring 9112C.

The working channel 980 runs through the main gastric tube 911, and further, the working channel 980 is located inside the inner ring 9111C. The working channel 980 includes a main channel 983C and a secondary channel 984C, the main channel 983C is coaxial with the inner ring 9111C and the outer ring 9112C. The auxiliary channel 984C is the aforementioned notch. That is to say, the radial projections of the auxiliary channel 984C and the inner ring 9111C together form a complete circle. The main channel 983C is adapted to allow the viewing assembly 930 to pass through. An extension unit 9422C is disposed at the front end of the visual component 930 . The extension unit 9422C is fixedly connected to the visual component 930 . The extension unit 9422C is adapted to pass through the auxiliary channel 984C. Each step-shaped front end surface of the inner ring 9111C is also provided with a limiting groove 913C, and the limiting groove 913C is suitable for engaging the extension unit 9422C, that is to say, the extension unit 9422C is suitable for being used by the limited by the limiting groove 913C.

Specifically, when the front-mounted visible gastric tube device is spliced, the visible component 930 is restricted by the extension unit 9422C by the limiting groove 913C, so that the visible component 930 The smooth fixing of the front end of the 930 ensures a clear view. And, due to the design of the stepped front surface of the inner ring 9111C, the extension unit 9422C can be engaged with the limiting groove 913C on different stepped surfaces. That is to say, the front end of the visual assembly 930 can be raised and lowered relative to the main gastric tube 911 . During operation, sometimes the front end of the visual component 930 is too close or too far away from the tissue in the body, so that the image obtained by the image projection device connected to the visual component 930 is blurred. Due to the design of the stepped surface, the operator can adjust the rear end of the visible component 930 to drive the extension unit 9422C at the front end of the visible component 930 to engage with the limiting slots on different stepped surfaces 913C. The front surface of the visual component 930 can change the focus distance of the observed object according to the observation situation, so that the transmitted image is clearer.

Then, when there is no need to perform observation tasks, the pre-fixed visible gastric tube device is inserted into a predetermined operation position. The viewing component 930 and the limiting component 940 need to be separated from the gastric tube main body 910 . The visual component 930 is separated from the gastric tube main body 910 because the extension unit 9422C passes along the auxiliary channel 984C. After the visual assembly 930 is separated from the gastric tube main body 910 , the main channel 983C communicates with the front end and the rear end of the main gastric tube 911 . That is to say, at this time, the gastric tube main body 910 is connected to the inside and outside of the patient, and the operator can perform the next operation.

Those skilled in the art should understand that the embodiments of the present invention shown in the foregoing description and drawings are only examples, and do not limit the present invention. The objects of the present invention have been fully and effectively accomplished. The functions and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention may have any deformation or modification without departing from the principles.

Claims (15)

1. A visual stomach tube device of leading fixed type, its characterized in that includes:

a gastric tube body including an inner tube wall and having a passageway extending through the gastric tube body;

the visual unit is suitable for being plugged into the channel; and

the fixing unit comprises a fixing part, a rotating part and a fixing groove, the rotating part is arranged on the visual unit, the fixing part is connected to the rotating part, the fixing groove extends inwards from the surface of the inner pipe wall in a concave mode, and when the visual unit is connected to the channel in an inserted mode, the fixing part is opened and clamped in the fixing groove.

2. The frontal fixation type visible gastric tube device according to claim 1, wherein said visible unit comprises a visible optical fiber and a fiber optic cannula, said visible optical fiber being disposed inside said fiber optic cannula, said fixation member being connected to said fiber optic cannula.

3. The pre-anchor visible gastric tube device of claim 1, further comprising an operating handle attached to the distal end of the gastric tube body, the operating handle comprising a gastric tube pull line attached at one end to the top end of the gastric tube body and at another end to the control, and a housing, the control being disposed on the housing surface.

4. The frontal fixation type visible gastric tube device according to claim 2, wherein the fixation unit further comprises a fixation member traction wire and a control unit, the control unit being disposed at the optical fiber sleeve, the fixation member traction wire having one end connected to the rotating portion and the other end connected to the control unit, the fixation member traction wire being adapted to rotate the rotating portion.

5. The frontal fixation type visible gastric tube device according to claim 4, wherein said fixation unit further comprises an elastic element having one end connected to said rotation portion and the other end connected to said fiber optic cannula of said visible unit.

6. The frontal fixation type visible stomach tube device according to claim 1, wherein said fixation unit further comprises a stopper portion disposed at the top end of said fixation groove, said stopper portion being adapted to be snap-coupled with said fixation member.

7. A visual stomach tube device of leading fixed type, its characterized in that includes:

a gastric tube body including an inner tube wall and having a passageway extending through the gastric tube body;

the visual unit is suitable for being plugged into the channel; and

and the fixing unit comprises a fixing part, a rotating part and a fixing groove, the rotating part is arranged on the visual unit, the fixing part extends from the surface of the inner pipe wall, and the fixing groove extends inwards from the surface of the rotating part in a concave mode.

8. A visual stomach tube device of leading fixed type, its characterized in that includes:

the stomach tube body comprises a main stomach tube and a limiting groove;

a working channel, said working channel extending through said main gastric tube;

a visual component located within the working channel; and

a spacing subassembly, spacing subassembly connect in visual subassembly, the visual stomach tube device of leading fixed type has a concatenation state, spacing subassembly block in the spacing groove, visual subassembly is located in the working channel, visual subassembly is fixed in the front end of main stomach tube is in order to observe the condition of inserting, the visual stomach tube device of leading fixed type has a separation state, visual subassembly spacing subassembly leaves the working channel.

9. The pre-fixed visible gastric tube device of claim 8, wherein said working channel comprises a first channel and a second channel, said first channel being located at a front end of said second channel, said first channel and said second channel being coaxially arranged, said limiting groove being located between said first channel and said second channel, said limiting assembly comprising a limiting member and having a mounting hole, said limiting member being mounted to said visible assembly through said mounting hole.

10. The pre-fixed visible gastric tube device of claim 9, wherein said stopper comprises an elastic unit and an extension unit, said extension unit having a rear end connected to said visible component and a front end connected to said visible unit through said elastic unit, said extension unit having a front end adjacent to said visible component during splicing of said pre-fixed visible gastric tube device; the visual stomach tube device of leading fixed type concatenation completion state, the extension unit keep away from in visual unit and support against in the roof of spacing groove.

11. The pre-fixed visible gastric tube device of claim 8, wherein the limiting assembly comprises a limiting member and a mounting member, the limiting member being mounted to the visible assembly via the mounting member, the limiting member comprising an extension unit, the extension unit being adapted to engage with the limiting groove.

12. The pre-mount gastric tube device according to claim 11, wherein the stopper comprises a balloon, the balloon comprises an expansion portion and a vent portion, the expansion portion is disposed around the visual component, the vent portion is connected to the expansion portion, the vent portion is adapted to receive and vent gas to the expansion portion, and the expansion portion abuts against the inner wall of the main gastric tube when the pre-mount gastric tube device is in the assembled state.

13. The advanced fixed visible gastric tube device of claim 11, wherein said main gastric tube comprises an inner ring and an outer ring, said inner ring and said outer ring being coaxially connected, said inner ring being located inside said outer ring, the front end surface of said inner ring being located on the rear side of the front end surface of said outer ring.

14. The frontal fixation type visible stomach tube device according to claim 13, wherein said inner ring comprises a first inner collar and a second inner collar, said first inner collar and said second inner collar are arranged at intervals, said limiting groove is respectively located at front end surfaces of said first inner collar and said second inner collar, said working channel comprises a first channel and a second channel, said first channel and said second channel are respectively arranged at both sides of said first inner collar and said second inner collar, said extension unit is adapted to pass through said first channel and said second channel.

15. The advanced fixed viewing gastric tube device according to claim 13, wherein said inner ring is stepped, said limiting grooves are respectively located on the front end surface of the step, said working channel comprises a main channel and an auxiliary channel, said main channel is adapted to pass through said viewing assembly, said auxiliary channel is communicated with said inner ring, and said extension unit is adapted to pass through said auxiliary channel.

Images