Oral cavity auxiliary supporting device for gastroscopy and method thereof

Abstract

The invention discloses an oral cavity auxiliary supporting device and method for gastroscopy and belongs to the technical field of oral cavity supporting.The oral cavity auxiliary supporting device comprises an oral cavity auxiliary supporting mechanism, and a saliva drainage mechanism is assembled on the oral cavity auxiliary supporting mechanism; the oral cavity of a patient is opened through the guide cavity, then the gastroscope penetrates through the guide cavity, the gastroscope guide wheel can guide and limit the gastroscope, the gastroscope is prevented from shaking, the gastroscope can be stably inserted into the stomach of the patient, and the gastroscope guide wheel can be driven to rotate in the gastroscope insertion process; the gastroscope guide wheel can drive the transmission screw to rotate through transmission of the transmission wheel and the transmission belt, the transmission screw drives the first piston to move through the transmission nut, the first piston pushes liquid into the other side of the fixed bottom shell through the conveying pipe, the liquid flow of the conveying pipe is adjusted through the first valve, and therefore the rotating speed of the gastroscope guide wheel can be adjusted. The speed of the gastroscope is further limited, so that constant-speed insertion of the gastroscope can be assisted, and the problems of discomfort and pain to a patient caused by unstable manual operation are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of oral cavity support, and in particular to an oral cavity auxiliary support device for gastroscopy and a method thereof. Background Art

[0002] Gastroscopy is a medical examination method that can directly observe the actual condition of the examined area. It can also perform pathological biopsy and cytological examination on suspected lesions to further clarify the diagnosis. It is the preferred examination method for upper gastrointestinal tract lesions. During the gastroscopy, the patient's mouth needs to be opened so that the endoscope catheter can be better inserted into the stomach, while also preventing the patient from resisting and biting, thereby damaging the examination instrument.

[0003] At present, the common oral support structure in the prior art is generally a simple mouthpiece. During the examination, when the gastroscope is inserted, there is no mechanism to limit the insertion position and speed, which causes the gastroscope to shake easily during insertion. The shaking of the gastroscope will increase the patient's pain and discomfort, and when the insertion is too fast, it is easy to cause great discomfort to the patient. In addition, the user's mouth will usually secrete saliva unconsciously because the mouth is stretched open and the gastroscope is inserted. However, there is no corresponding device for collecting the saliva. At this time, the doctor needs to clear it, which affects the doctor's operation.

[0004] In view of the above problems, the present invention document proposes an oral auxiliary support device and method for gastroscopy. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the common oral support structure in the prior art is generally a simple mouthpiece. When the gastroscope is inserted during the examination, there is no mechanism to limit the insertion position and speed, which causes the gastroscope to shake easily during insertion. The shaking of the gastroscope will increase the patient's pain and discomfort, and when the insertion is too fast, it is easy to cause great discomfort to the patient. Usually, due to the stretching of the mouth and the insertion of the gastroscope, the user's mouth will unconsciously secrete saliva, but there is no corresponding device for collecting saliva. At this time, the doctor needs to clear it, which affects the doctor's operation. Therefore, an oral auxiliary support device and method for gastroscopy examination are proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An oral auxiliary support device for gastroscopy, comprising an oral auxiliary support mechanism, wherein a saliva drainage mechanism is mounted on the oral auxiliary support mechanism;

[0008] The oral auxiliary mechanism includes a wearing component, a gastroscope guide and support component is arranged in the middle of the wearing component, a tongue depressor is connected to the rear of the gastroscope guide and support component, a gastroscope advancing adjustment component is arranged in front of the gastroscope guide and support component, the gastroscope penetrates into the gastroscope guide and support component, and cooperates with the gastroscope advancing adjustment component to adjust the pushing resistance of the gastroscope;

[0009] The saliva drainage mechanism includes a saliva extraction component, the top of the saliva extraction component is connected to a drainage component, one end of the drainage component passes through the gastroscope guide and support component, and the drainage component is arranged on the tongue depressor. The saliva extraction component draws out excess saliva in the oral cavity through the drainage component.

[0010] Preferably, the wearing assembly comprises a fixing belt loop, and two ends of the fixing belt loop are respectively connected to two ends of the tightening belt.

[0011] Preferably, the saliva extraction component comprises a sealing shell, the upper part of the sealing shell is connected with a discharge pipe, and the discharge pipe is provided with a second valve;

[0012] A one-way valve and a narrow-mouth exhaust pipe are arranged below the sealing shell.

[0013] Preferably, a second piston is provided in the sealing shell, an operating rod is fixedly connected below the second piston, the operating rod is provided in a sealing sleeve, the sealing sleeve is installed below the sealing shell, and a control handle is fixedly connected to the bottom end of the operating rod;

[0014] A return spring is fixedly connected to the upper side of the sealing sleeve, and the top end of the return spring is fixedly connected to the second piston.

[0015] Preferably, the drainage assembly comprises a hose, one end of which is connected to an annular tube, the annular tube is installed in the tongue depressor, and a plurality of liquid inlets are arranged on the annular tube, and a plurality of drainage holes are opened on the tongue depressor, and every two liquid inlets are arranged in one drainage hole;

[0016] A plurality of sponge layers are arranged below the tongue depressor.

[0017] Preferably, the gastroscope guiding and supporting assembly comprises a guiding cavity, the guiding cavity is fixedly mounted at the middle of the fixing belt ring, the hose passes through the guiding cavity, and the rear of the guiding cavity is fixedly connected to the tongue depressor.

[0018] Preferably, protective side shells are fixedly connected to both sides of the guide cavity, and two gastroscope guide wheels are provided inside the guide cavity. The two gastroscope guide wheels are rotatably installed in the guide cavity through a rotating shaft pin.

[0019] Preferably, the gastroscope advance adjustment assembly includes a fixed bottom shell, which is fixedly connected to the bottom of the guide cavity. A first piston is arranged in the fixed bottom shell, and a transmission nut is installed in the middle of the first piston. The transmission nut is threadedly connected to the transmission screw, and the transmission screw is rotatably installed on the fixed bottom shell through a bearing. Both ends of the transmission screw and both ends of the rotating shaft pin below are fixedly connected with transmission wheels, and the two transmission wheels are connected by transmission belts. The transmission wheels and the transmission belts are located in the protective side shell.

[0020] Preferably, the left and right sides of the front of the fixed bottom shell are respectively connected to the two ends of the delivery pipe, the delivery pipe is provided with a first valve, and the interior of the fixed bottom shell is provided with liquid.

[0021] A method for using an oral auxiliary support device for gastroscopy, comprising the following steps:

[0022] S1. Before performing gastroscopy on a patient, first push the control handle so that the operating rod drives the second piston to move, so that the second piston moves upward, and the second piston drives the reset spring to deform, then put the tightening belt on the patient's head, and put the rear of the guide cavity into the patient's mouth, and press the tongue of the patient with the tongue depressor, and then insert the gastroscope into the guide cavity;

[0023] S2. During the process of the gastroscope passing through the guide cavity, the gastroscope passes through the gastroscope guide wheel and drives the gastroscope guide wheel to rotate. The gastroscope guide wheel drives the transmission wheel to rotate. Under the driving action of the transmission belt, the two transmission wheels rotate synchronously, the transmission screw rotates, the transmission screw drives the transmission nut to move, the transmission nut drives the first piston to move, and the first piston moves to the left. The first piston presses the liquid inside the fixed bottom shell into the cavity on the right through the delivery tube, and the flow rate of the liquid is controlled by the first valve to adjust the rotation speed of the gastroscope guide wheel, and realize the control of the uniform movement of the gastroscope, so that the gastroscope moves forward at a uniform speed, penetrates into the patient's throat and reaches the patient's stomach, and then the next step of gastroscopy is carried out;

[0024] S3. During the insertion process of the gastroscope, the reset force of the reset spring drives the second piston to reset downward, and because the diameter of the narrow-mouth exhaust pipe is small, the second piston moves slowly, causing the second piston to move downward to generate a negative pressure force, and the saliva produced in the patient's mouth is drawn out through the liquid inlet, so that the saliva passes through the hose into the sealing shell for collection. When discharging, the discharge pipe is opened through the second valve, and the control handle is pushed to make the second piston push the saliva out through the discharge pipe.

[0025] Compared with the prior art, the present invention provides an oral auxiliary support device for gastroscopy and a method thereof, which has the following beneficial effects:

[0026] 1. The oral auxiliary support device and method for gastroscopy use a guide cavity to open the patient's oral cavity, and then the gastroscope passes through the guide cavity, so that the gastroscope guide wheel can guide and limit the gastroscope to prevent the gastroscope from shaking, so that the gastroscope can be stably inserted into the patient's stomach, and the gastroscope insertion process can drive the gastroscope guide wheel to rotate, and the gastroscope guide wheel can drive the transmission screw to rotate through the transmission wheel and the transmission belt, so that the transmission screw drives the first piston to move through the transmission nut, and the first piston pushes the liquid into the other side of the fixed bottom shell through the delivery tube, and adjusts the liquid flow of the delivery tube through the first valve, so that the rotation speed of the gastroscope guide wheel can be adjusted, and the speed of the gastroscope can be further limited, so as to assist the uniform speed insertion of the gastroscope, avoid the problem of unstable manual operation and discomfort and pain caused to the patient.

[0027] 2. The oral auxiliary support device and method for gastroscopy examination, by pushing up the control handle, causes the control handle to drive the operating rod and the second piston to move upward, the second piston drives the reset spring to deform, and then the reset spring recovers and drives the second piston to move downward. Since the diameter of the narrow-mouth exhaust pipe is relatively small, the second piston can slowly exhaust air downward, thereby increasing the reset time of the second piston, so that the second piston can absorb saliva produced in the patient's mouth through negative pressure attraction, and the saliva enters the sealing shell through the liquid inlet and the hose for collection. This method can reduce the patient's discomfort by collecting saliva, and facilitates the timely discharge of saliva. In addition, this method does not require the addition of driving equipment, thereby reducing costs.

[0028] 3. The oral auxiliary support device and method for gastroscopy examination, by wearing a tightening band behind the patient's head, so that the rear of the guide cavity is located in the patient's mouth to support the patient's oral cavity, and then the gastroscope is passed through the guide cavity into the patient's oral cavity, and the gastroscope guide wheel can be driven to rotate during the insertion process of the gastroscope, and the gastroscope guide wheel can drive the transmission screw and the transmission nut through the transmission belt and the transmission wheel, so that the first piston can guide the liquid through the delivery tube to the cavity on the other side of the fixed bottom shell, and the liquid flow can be adjusted by the first valve, so that the insertion speed of the gastroscope can be limited by the gastroscope guide wheel, the uniform speed insertion of the gastroscope can reduce the patient's saliva secretion, and cooperate with the saliva extraction component and the drainage component to draw out excess saliva, thereby greatly reducing the saliva in the patient's mouth, preventing vomiting caused by excessive saliva, and causing discomfort that not only affects the intubation but also easily causes harm to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A three-dimensional view of an oral auxiliary support device for gastroscopy and a method thereof proposed by the present invention;

[0030] Figure 2 A three-dimensional view of a wearing component of an oral auxiliary support device for gastroscopy and a method thereof proposed by the present invention;

[0031] Figure 3This is a view of the connection between the saliva drainage mechanism and the gastroscope guide and support assembly of the oral auxiliary support device for gastroscopy and the method thereof proposed by the present invention;

[0032] Figure 4 A three-dimensional view of a saliva drainage mechanism of an oral auxiliary support device for gastroscopy and a method thereof proposed by the present invention;

[0033] Figure 5 A three-dimensional view of a cross section of a saliva extraction component of an oral auxiliary support device for gastroscopy and a method thereof proposed by the present invention;

[0034] Figure 6 A three-dimensional view of the guide cavity of an oral auxiliary support device and method for gastroscopy proposed by the present invention;

[0035] Figure 7 A three-dimensional view of a gastroscope guide and support assembly of an oral auxiliary support device and method for gastroscopy proposed by the present invention;

[0036] Figure 8 A three-dimensional view of a guide cavity section of an oral auxiliary support device for gastroscopy and a method thereof proposed by the present invention;

[0037] Fig. 9 A three-dimensional view of a transmission screw of an oral auxiliary support device and method for gastroscopy proposed by the present invention;

[0038] Fig.10 The present invention provides a three-dimensional view of the fixed bottom shell section of an oral auxiliary support device for gastroscopy and a method thereof.

[0039] In the figure: 100, oral auxiliary support mechanism; 101, wearing component; 1011, tightening belt; 1012, fixing belt ring; 102, gastroscope guiding and supporting component; 1021, guiding cavity; 1022, protective side shell; 1023, gastroscope guide wheel; 1024, rotating shaft pin; 103, sponge layer; 104, tongue depressor; 105, drainage hole; 106, gastroscope travel adjustment component; 1061, transmission screw; 1062, transmission nut; 1063, first piston; 1064, transmission wheel; 1065, fixed bottom shell; 1066, delivery pipe; 1067, first valve; 1068, transmission belt; 200, saliva drainage mechanism; 201, saliva extraction assembly; 2011, sealing shell; 2012, discharge pipe; 2013, one-way valve; 2014, second valve; 2015, narrow-mouth exhaust pipe; 2016, second piston; 2017, return spring; 2018, operating rod; 2019, control handle; 20110, sealing sleeve; 202, drainage assembly; 2021, hose; 2022, annular tube; 2023, liquid inlet. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] Example 1: Reference Figure 1-3 and Figure 6-10 , an oral auxiliary support device for gastroscopy, comprising an oral auxiliary support mechanism 100, on which a saliva drainage mechanism 200 is mounted;

[0043] The oral auxiliary mechanism includes a wearing component 101, which includes a fixed belt ring 1012. The two ends of the fixed belt ring 1012 are respectively connected to the two ends of the tightening belt 1011. The tightening belt 1011 is elastic, so that the tightening belt 1011 can be worn on the patient's head by tightening, so that the guide cavity 1021 can be positioned by the fixed belt ring 1012, so that the guide cavity 1021 can smoothly open the patient's oral cavity. A gastroscope guide and support component 102 is provided in the middle of the wearing component 101. The gastroscope guide and support component 102 includes a guide cavity 1021, which is fixedly installed in the middle of the fixed belt ring 1012. The hose 2021 passes through the guide cavity 1021, and the rear of the guide cavity 1021 is fixedly connected to the tongue depressor 104 Then, the guide cavity 1021 can open the patient's mouth to prevent the patient from biting the gastroscope, and the interior of the guide cavity 1021 is hollow, so that the gastroscope can smoothly pass through the guide cavity 1021 and enter the patient's mouth. At the same time, after the guide cavity 1021 enters the patient's mouth, the tongue depressor 104 is pressed on the top of the patient's tongue, thereby preventing the tongue movement from affecting the subsequent intubation operation. Both sides of the guide cavity 1021 are fixedly connected with protective side shells 1022, and two gastroscope guide wheels 1023 are arranged inside the guide cavity 1021. The two gastroscope guide wheels 1023 are rotatably installed in the guide cavity 1021 by rotating the shaft pin 1024. The gastroscope guide wheel 1023 can be fixed by rotating the shaft pin 1024, and the gastroscope guide wheel 1023 can be rotated by rotating the shaft pin 1024. 4 rotates smoothly, so that the gastroscope can be smoothly pushed into the guide cavity 1021. The tongue depressor 104 is connected to the rear of the gastroscope guiding and supporting assembly 102. The gastroscope advancing and adjusting assembly 106 is arranged in front of the gastroscope guiding and supporting assembly 102. The gastroscope advancing and adjusting assembly 106 includes a fixed bottom shell 1065, which is fixedly connected to the bottom of the guiding cavity 1021. A first piston 1063 is arranged in the fixed bottom shell 1065. The shapes of the fixed bottom shell 1065 and the first piston 1063 are both rectangular, so that the first piston 1063 can move smoothly in the fixed bottom shell 1065 to prevent the transmission nut 1062 from driving the first piston 1063 to cause the problem of rotation. The middle part of the first piston 1063 is equipped with a transmission nut 1062. The transmission nut 1062 is threadedly connected to the transmission screw 1061. The transmission screw 1061 can maintain stable rotation through the bearing, so that the transmission screw 1061 and the transmission nut 1062 can be stably transmitted. The rotation of the transmission screw 1061 can drive the transmission nut 1062 to move, so that the transmission nut 1062 can drive the first piston 1063 to move, so that the first piston 1063 can transport the liquid to the other side of the cavity of the fixed bottom shell 1065 through the delivery pipe 1066. The transmission screw 1061 is rotatably installed on the fixed bottom shell 1065 through the bearing. Both ends of the transmission screw 1061 and both ends of the rotating shaft pin 1024 below are fixedly connected with the transmission wheels 1064. The two transmission wheels 1064 are connected through the transmission belt 1068.The transmission belt 1068 can realize long-distance power transmission through two transmission wheels 1064, so as to control the rotation of the transmission screw 1061. The transmission wheel 1064 and the transmission belt 1068 are located in the protective side shell 1022. The left and right sides in front of the fixed bottom shell 1065 are respectively connected to the two ends of the delivery tube 1066. The delivery tube 1066 is provided with a first valve 1067. The delivery tube 1066 plays the role of conveying liquid, and the flow rate of the liquid can be controlled by the first valve 1067, thereby adjusting the rotation speed of the gastroscope guide wheel 1023, so that the gastroscope insertion process can maintain a uniform speed. The fixed bottom shell 1065 is provided with liquid inside, and the gastroscope penetrates into the gastroscope guide and support assembly 102, and cooperates with the gastroscope travel adjustment assembly 106 to adjust the pushing resistance of the gastroscope.

[0044] In the present embodiment: the oral cavity of the patient is opened by the guide cavity 1021, and then the gastroscope is passed through the guide cavity 1021, so that the gastroscope guide wheel 1023 can guide and limit the gastroscope to prevent the gastroscope from shaking, so that the gastroscope can be stably inserted into the patient's stomach, and the gastroscope insertion process can drive the gastroscope guide wheel 1023 to rotate, and the gastroscope guide wheel 1023 can drive the transmission screw 1061 to rotate through the transmission wheel 1064 and the transmission belt 1068, so that the transmission screw 1061 drives the first piston 1063 to move through the transmission nut 1062, and the first piston 1063 pushes the liquid into the other side of the fixed bottom shell 1065 through the delivery tube 1066, and adjusts the liquid flow of the delivery tube 1066 through the first valve 1067, so that the rotation speed of the gastroscope guide wheel 1023 can be adjusted, and the speed of the gastroscope can be further limited, thereby assisting the uniform speed insertion of the gastroscope, avoiding the problem of unstable manual operation causing discomfort and pain to the patient.

[0045] Example 2: Reference Figure 4-5A gastroscopy oral auxiliary support device includes a saliva drainage mechanism 200, the saliva drainage mechanism 200 includes a saliva extraction component 201, the saliva extraction component 201 includes a sealing shell 2011, the upper part of the sealing shell 2011 is connected with a discharge pipe 2012, the sealing shell 2011 can collect saliva, and by pushing up an operating rod 2018, a second piston 2016 can discharge saliva through the discharge pipe 2012, a second valve 2014 is provided on the discharge pipe 2012, and the opening and closing of the discharge pipe 2012 can be controlled by the second valve 2014, and a one-way valve 2013 and a narrow-mouth exhaust pipe 2015 are provided below the sealing shell 2011, and the one-way valve 2013 can maintain one-way air intake, so that the second piston 2016 moves upward The one-way valve 2013 can be kept open, so that the second piston 2016 can be quickly pushed to the top of the inner cavity of the sealing shell 2011, and the one-way valve 2013 is kept closed during the downward movement of the second piston 2016 to prevent the second piston 2016 from quickly resetting. Secondly, the narrow-mouth exhaust pipe 2015 can maintain smooth exhaust, and the diameter of the narrow-mouth exhaust pipe 2015 is small, so that the exhaust can be delayed, so that the second piston 2016 slowly resets downward, and the resetting time of the second piston 2016 is increased, so that the second piston 2016 can continuously perform the pumping operation, and the second piston 2016 is provided in the sealing shell 2011, and the lower part of the second piston 2016 is fixedly connected with an operating rod 2018, and the operating rod 2018 is provided on the sealing sleeve 20 110, the operating rod 2018 can be connected to the second piston 2016, so as to facilitate the control of the second piston 2016 in the sealing shell 2011, and the operating rod 2018 can also be kept sealed by the sealing sleeve 20110, the sealing sleeve 20110 is installed below the sealing shell 2011, and the bottom end of the operating rod 2018 is fixedly connected with a control handle 2019, and the control handle 2019 can be used as a force application point to facilitate the control of the movement of the operating rod 2018 and the second piston 2016, and the upper part of the sealing sleeve 20110 is fixedly connected with a reset spring 2017, and the reset force of the reset spring 2017 can drive the second piston 2016 to automatically reset, so that the second piston 2016 can draw out excess saliva in the patient's mouth through negative pressure, and the reset spring 2017 can be used to reset the second piston 2016. The top of the spring 2017 is fixedly connected to the second piston 2016. The top of the saliva extraction component 201 is connected to the drainage component 202. The drainage component 202 includes a hose 2021. One end of the hose 2021 is connected to an annular tube 2022. The annular tube 2022 is installed in the tongue depressor 104, and a plurality of liquid inlets 2023 are provided on the annular tube 2022. The tongue depressor 104 is provided with a plurality of drainage holes 105. The drainage holes 105 can play a role in drainage, so that the patient's saliva can be distributed at the position of the liquid inlet 2023, and then the liquid can be smoothly introduced through the liquid inlet 2023. Every two liquid inlets 2023 are arranged in one drainage hole 105. A plurality of sponge layers 103 are arranged below the tongue depressor 104, and the sponge layers 103 can also absorb saliva.To avoid discomfort to the patient caused by excessive saliva secretion, one end of the drainage component 202 passes through the gastroscope guide and support component 102, and the drainage component 202 is arranged on the tongue depressor 104, and the saliva extraction component 201 draws out excess saliva in the oral cavity through the drainage component 202;

[0046] In this embodiment: by pushing up the control handle 2019, the control handle 2019 drives the operating rod 2018 and the second piston 2016 to move upward, and the second piston 2016 drives the reset spring 2017 to deform, and then the reset spring 2017 recovers and drives the second piston 2016 to move downward. Since the diameter of the narrow-mouth exhaust pipe 2015 is relatively small, the second piston 2016 can slowly exhaust air downward, thereby increasing the reset time of the second piston 2016, so that the second piston 2016 can absorb saliva produced in the patient's mouth through negative pressure attraction, and the saliva enters the sealing shell 2011 through the liquid inlet 2023 and the hose 2021 for collection. This method can reduce the patient's discomfort by collecting saliva, and facilitates the timely discharge of saliva. In addition, this method does not require the addition of driving equipment, thereby reducing costs.

[0047] Example 3: Reference Figure 2 and Figure 8-10 , an oral auxiliary support device for gastroscopy, comprising a wearing component 101, wherein the wearing component 101 comprises a fixing belt ring 1012, and two ends of the fixing belt ring 1012 are respectively connected to two ends of a tightening belt 1011;

[0048] The gastroscope guiding and supporting assembly 102 comprises a guiding cavity 1021, which is fixedly mounted in the middle of the fixing belt ring 1012, through which a hose 2021 passes, and the rear of the guiding cavity 1021 is fixedly connected to the tongue depressor 104, and both sides of the guiding cavity 1021 are fixedly connected to protective side shells 1022, and two gastroscope guide wheels 1023 are arranged inside the guiding cavity 1021, and the two gastroscope guide wheels 1023 are rotatably mounted in the guiding cavity 1021 through a rotating shaft pin 1024;

[0049] The gastroscope advancement adjustment assembly 106 includes a fixed bottom shell 1065, which is fixedly connected to the bottom of the guide cavity 1021. A first piston 1063 is arranged in the fixed bottom shell 1065. A transmission nut 1062 is installed in the middle of the first piston 1063. The transmission nut 1062 is threadedly connected to the transmission screw 1061. The transmission screw 1061 is rotatably installed on the fixed bottom shell 1065 through a bearing. Both ends of the transmission screw 1061 and both ends of the rotating shaft pin 1024 below are fixedly connected with a transmission wheel 1064. The two transmission wheels 1064 are connected by a transmission belt 1068. The transmission wheel 1064 and the transmission belt 1068 are located in the protective side shell 1022. The left and right sides in front of the fixed bottom shell 1065 are respectively connected to the two ends of the delivery pipe 1066. The delivery pipe 1066 is provided with a first valve 1067. Liquid is arranged inside the fixed bottom shell 1065.

[0050] In this embodiment: by wearing the tightening belt 1011 behind the patient's head, the rear of the guide cavity 1021 is located in the patient's mouth to support the patient's oral cavity, and then the gastroscope passes through the guide cavity 1021 into the patient's oral cavity, and the gastroscope guide wheel 1023 can be driven to rotate during the insertion process of the gastroscope, and the gastroscope guide wheel 1023 can drive the transmission screw 1061 and the transmission nut 1062 through the transmission belt 1068 and the transmission wheel 1064, so that the first piston 1063 can guide the liquid through the delivery tube 1066 to the cavity on the other side of the fixed bottom shell 1065, and the liquid flow can be adjusted by the first valve 1067, so that the insertion speed of the gastroscope can be limited by the gastroscope guide wheel 1023, and the uniform speed insertion of the gastroscope can reduce the patient's saliva secretion, and cooperate with the saliva extraction component 201 and the drainage component 202 to draw out excess saliva, thereby greatly reducing the saliva in the patient's mouth, preventing vomiting caused by excessive saliva, and causing discomfort that not only affects the intubation but also easily causes harm to the patient.

[0051] A method for using an oral auxiliary support device for gastroscopy, comprising the following steps:

[0052] S1. Before performing gastroscopy on a patient, first push the control handle 2019 to make the operating rod 2018 drive the second piston 2016 to move, so that the second piston 2016 moves upward, and the second piston 2016 drives the return spring 2017 to deform, then put the tightening belt 1011 on the patient's head, and put the rear of the guide cavity 1021 into the patient's mouth, and the tongue depressor 104 presses the patient's tongue, and then insert the gastroscope into the guide cavity 1021;

[0053] S2. When the gastroscope is inserted into the guide cavity 1021, the gastroscope passes through the gastroscope guide wheel 1023 and drives the gastroscope guide wheel 1023 to rotate. The gastroscope guide wheel 1023 drives the transmission wheel 1064 to rotate. Under the transmission action of the transmission belt 1068, the two transmission wheels 1064 rotate synchronously, so that the transmission screw 1061 rotates, and the transmission screw 1061 drives the transmission nut 1062 to move. The transmission nut 1062 drives the first piston 1063 to move, so that the first piston 1063 moves to the left, and the first piston 1063 presses the liquid inside the fixed bottom shell 1065 into the cavity on the right through the delivery pipe 1066, and the flow rate of the liquid is controlled by the first valve 1067, so as to adjust the rotation speed of the gastroscope guide wheel 1023, and realize the control of the uniform movement of the gastroscope, so that the gastroscope moves forward at a uniform speed, penetrates into the patient's throat and reaches the patient's stomach, and then the next step of gastroscopy is carried out;

[0054] S3. During the insertion of the gastroscope, the reset force of the reset spring 2017 drives the second piston 2016 to reset downward, and due to the small diameter of the narrow-mouthed exhaust pipe 2015, the second piston 2016 moves slowly, causing the second piston 2016 to move downward to generate a negative pressure force, and the saliva produced in the patient's mouth is drawn out through the liquid inlet 2023, so that the saliva passes through the hose 2021 and enters the sealing shell 2011 for collection. When discharging, the discharge pipe 2012 is opened through the second valve 2014, and the control handle 2019 is pushed to make the second piston 2016 push the saliva out through the discharge pipe 2012.

[0055] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An oral auxiliary support device for gastroscopy, comprising an oral auxiliary support mechanism (100), characterized in that: The oral auxiliary support mechanism (100) is equipped with a saliva drainage mechanism (200); The oral auxiliary mechanism comprises a wearing component (101), a gastroscope guiding and supporting component (102) is arranged in the middle of the wearing component (101), a tongue depressor (104) is connected to the rear of the gastroscope guiding and supporting component (102), a gastroscope advancing and adjusting component (106) is arranged in front of the gastroscope guiding and supporting component (102), the gastroscope penetrates into the gastroscope guiding and supporting component (102), and cooperates with the gastroscope advancing and adjusting component (106) to adjust the pushing resistance of the gastroscope; The saliva drainage mechanism (200) comprises a saliva extraction component (201), the upper part of the saliva extraction component (201) is connected to a drainage component (202), one end of the drainage component (202) passes through the gastroscope guide and support component (102), and the drainage component (202) is arranged on a tongue depressor (104), and the saliva extraction component (201) draws out excess saliva in the oral cavity through the drainage component (202).

2. The oral auxiliary support device for gastroscopy according to claim 1, characterized in that: The wearing assembly (101) comprises a fixing belt loop (1012), and two ends of the fixing belt loop (1012) are respectively connected to two ends of the tightening belt (1011).

3. The oral auxiliary support device for gastroscopy according to claim 2, characterized in that: The saliva extraction component (201) comprises a sealing shell (2011), the upper part of the sealing shell (2011) is connected to a discharge pipe (2012), and the discharge pipe (2012) is provided with a second valve (2014); A one-way valve (2013) and a narrow-mouth exhaust pipe (2015) are provided below the sealing shell (2011).

4. The oral auxiliary support device for gastroscopy according to claim 3, characterized in that: A second piston (2016) is provided in the sealing shell (2011), an operating rod (2018) is fixedly connected below the second piston (2016), the operating rod (2018) is provided in a sealing sleeve (20110), the sealing sleeve (20110) is installed below the sealing shell (2011), and a control handle (2019) is fixedly connected to the bottom end of the operating rod (2018); A return spring (2017) is fixedly connected to the top of the sealing sleeve (20110), and the top end of the return spring (2017) is fixedly connected to the second piston (2016).

5. The oral auxiliary support device for gastroscopy according to claim 4, characterized in that: The drainage assembly (202) comprises a hose (2021), one end of the hose (2021) is connected to an annular tube (2022), the annular tube (2022) is installed in the tongue depressor (104), and the annular tube (2022) is provided with a plurality of liquid inlets (2023), the tongue depressor (104) is provided with a plurality of drainage holes (105), and every two liquid inlets (2023) are provided in one drainage hole (105); A plurality of sponge layers (103) are arranged below the tongue depressor (104).

6. The oral auxiliary support device for gastroscopy according to claim 5, characterized in that: The gastroscope guiding and supporting assembly (102) comprises a guiding cavity (1021), wherein the guiding cavity (1021) is fixedly mounted in the middle of the fixing belt ring (1012), the hose (2021) passes through the guiding cavity (1021), and the rear of the guiding cavity (1021) is fixedly connected to the tongue depressor (104).

7. The oral auxiliary support device for gastroscopy according to claim 6, characterized in that: Both sides of the guide cavity (1021) are fixedly connected with protective side shells (1022), and two gastroscope guide wheels (1023) are provided inside the guide cavity (1021). The two gastroscope guide wheels (1023) are rotatably installed in the guide cavity (1021) through a rotating shaft pin (1024).

8. The oral auxiliary support device for gastroscopy according to claim 7, characterized in that: The gastroscope advancement adjustment assembly (106) includes a fixed bottom shell (1065), which is fixedly connected to the bottom of the guide cavity (1021). A first piston (1063) is arranged in the fixed bottom shell (1065). A transmission nut (1062) is installed in the middle of the first piston (1063). The transmission nut (1062) is threadedly connected to the transmission screw (1061). The transmission screw (1061) is rotatably installed on the fixed bottom shell (1065) through a bearing. Both ends of the transmission screw (1061) and both ends of the rotating shaft pin (1024) below are fixedly connected with transmission wheels (1064). The two transmission wheels (1064) are connected by transmission belts (1068). The transmission wheels (1064) and the transmission belts (1068) are located in the protective side shell (1022).

9. The oral auxiliary support device for gastroscopy according to claim 8, characterized in that: The left and right sides in front of the fixed bottom shell (1065) are respectively connected to the two ends of the delivery pipe (1066), and the delivery pipe (1066) is provided with a first valve (1067). Liquid is provided inside the fixed bottom shell (1065).

10. The method for using the oral auxiliary support device for gastroscopy according to claim 9, characterized in that: The following steps are involved: S1. Before performing a gastroscopy on a patient, first push the control handle (219) so that the operating rod (218) drives the second piston (2016) to move, so that the second piston (2016) moves upward, and the second piston (2016) drives the return spring (2017) to deform, then put the tightening belt (1011) on the patient's head, and place the rear of the guide cavity (1021) into the patient's oral cavity, and press the tongue depressor (104) on the patient's tongue, and then insert the gastroscope into the guide cavity (1021); S2. When the gastroscope is inserted into the guide cavity (1021), the gastroscope passes through the gastroscope guide wheel (1023) and drives the gastroscope guide wheel (1023) to rotate. The gastroscope guide wheel (1023) drives the transmission wheel (1064) to rotate. Under the transmission action of the transmission belt (1068), the two transmission wheels (1064) rotate synchronously, causing the transmission screw (1061) to rotate. The transmission screw (1061) drives the transmission nut (1062) to move, and the transmission nut (1062) drives The first piston (1063) moves, causing the first piston (1063) to move to the left, and the first piston (1063) presses the liquid inside the fixed bottom shell (1065) into the cavity on the right through the delivery tube (1066), and the flow rate of the liquid is controlled by the first valve (1067), thereby adjusting the rotation speed of the gastroscope guide wheel (1023) and controlling the uniform movement of the gastroscope, so that the gastroscope moves forward at a uniform speed, penetrates into the patient's throat and reaches the patient's stomach, and then the next step of gastroscopy is performed; S3. During the insertion of the gastroscope, the reset force of the reset spring (2017) drives the second piston (2016) to reset downward, and because the narrow-mouth exhaust pipe (2015) has a small diameter, the second piston (2016) moves slowly, causing the second piston (2016) to move downward to generate a negative pressure force, and the saliva produced in the patient's mouth is drawn out through the liquid inlet (2023), and the saliva passes through the hose (221) into the sealing shell (2011) for collection. When discharging, the discharge pipe (2012) is opened through the second valve (2014), and the control handle (2019) is pushed, so that the second piston (2016) pushes the saliva out through the discharge pipe (2012).

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