Stomach content extraction device

Abstract

The invention provides a stomach content extraction device, and belongs to the technical field of stomach content extraction. Comprising a mounting base, a rotating support is mounted on one side of the mounting base in a damping mode, a negative pressure aspirator is mounted at one end of the rotating support, a negative pressure collecting barrel is connected to one end of the negative pressure aspirator, a nasogastric tube is connected to the top end of the negative pressure collecting barrel in a penetrating mode, and a mounting base is mounted at the top end of the mounting base; a supporting assembly is arranged, the supporting assembly is installed at one end of the installation base, and the supporting assembly is used for conducting auxiliary supporting on the head and the neck of a patient; and the positioning assembly is mounted at the top end of the rotating bracket. By arranging the supporting assembly, the head of an unconscious patient is supported in an auxiliary mode, the situation that medical workers manually support the head of the unconscious patient for a long time, and consequently the hand fatigue is caused is avoided, the situation that the intubation efficiency and precision are reduced due to the hand fatigue of the medical workers is avoided, and the operation convenience is improved when the medical workers insert nasogastric tubes into the unconscious patient.

Description

Technical Field

[0001] The invention relates to the technical field of gastric content extraction, and in particular to a gastric content extraction device. Background Art

[0002] The gastric content extraction device is a combination of instruments used to obtain gastric content samples from the stomach. By extracting gastric contents for analysis, it can clarify key information such as the type and dosage of poisons ingested by the patient or determine whether the patient has a disease related to abnormal gastric acid secretion. Generally, a gastric tube is inserted into the stomach through the nasal cavity or oral cavity. After confirming that the gastric tube is in the correct position in the stomach, the syringe is tightly connected to the end of the gastric tube, and the syringe piston is slowly pulled manually to use the negative pressure formed inside the syringe to draw the gastric contents into the syringe through the gastric tube.

[0003] However, when the existing gastric content extraction device is used to extract gastric contents from a comatose patient, since the patient is in a comatose state, when inserting a nasogastric tube into the nasal cavity of the comatose patient, the medical staff needs to manually lift the head of the comatose patient to bring the patient's lower jaw close to the chest. Inserting the nasogastric tube takes a certain amount of time, and the medical staff manually holding the patient's head for a long time may easily cause soreness in the medical staff's hands and affect the intubation efficiency. At the same time, when the medical staff holds the patient's head, it is inconvenient to intubate the patient's nasal cavity with one hand. Therefore, the present application provides a gastric content extraction device to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a gastric content extraction device to solve the problem that medical staff manually hold the patient's head for a long time, which easily causes soreness in the hands of the medical staff and affects the intubation efficiency. At the same time, when the medical staff holds the patient's head, it is inconvenient to intubate the patient's nasal cavity with one hand.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A gastric content extraction device comprises a mounting base, a rotating bracket is dampedly mounted on one side of the mounting base, a negative pressure suction device is mounted on one end of the rotating bracket, a negative pressure suction device is connected to a negative pressure collection bucket at one end, a nasogastric tube is connected to the top of the negative pressure collection bucket, and a mounting seat is mounted on the top of the mounting base;

[0007] A support assembly, wherein one end of the mounting base is provided with a support assembly, and the support assembly is used to provide auxiliary support for the patient's head and neck;

[0008] A positioning component is installed on the top of the rotating bracket, and the positioning component is used to position the nasogastric tube;

[0009] A cleaning component, wherein one end of the positioning component is provided with a cleaning component, and the cleaning component is used to clean the surface of the nasogastric tube;

[0010] The positioning component is located at one side of the supporting component, and the cleaning component is located at one side of the positioning component.

[0011] Optionally, the supporting assembly includes a rotating disk 1, which is installed on one side of the bottom end of the mounting base. The top of the rotating disk 1 is connected to a screw rod 1, the top of the screw rod is threadedly sleeved with a threaded base 1, the outer surface of the threaded base 1 is sleeved with a limiting rod, and the limiting rod is installed on the inner wall of the opening at the top of the mounting base.

[0012] Optionally, a connecting rod is installed at the top of the threaded base, one end of the connecting rod is connected to an arc-shaped guard plate, one side of the bottom end of the arc-shaped guard plate is connected to the mounting seat, a rubber pad is installed at the top of the arc-shaped guard plate, the number of the rubber pads is set to two groups, the two groups of rubber pads are symmetrically installed at the top of the arc-shaped guard plate, and the material of the rubber pad is set to nitrile rubber.

[0013] Optionally, the positioning assembly includes a mounting base plate, the mounting base plate is mounted on the top of the rotating bracket, and the cross-section of the rotating bracket is designed to be a circular structure.

[0014] Optionally, positioning pins are installed on the top of the mounting base plate, and the number of the positioning pins is set to multiple groups. The multiple groups of positioning pins are installed at equal angles on the top of the mounting base plate. The outer surface of the positioning pins is sleeved with an arc track, and the number of the arc tracks is set to two groups. The two groups of arc tracks are arranged in a "cross" shape, and the top end surface of one group of the two groups of arc tracks contacts the bottom end surface of the other group of arc tracks.

[0015] Optionally, a rubber gasket is installed on one end surface of the two groups of arc tracks, and the material of the rubber gasket is set to nitrile rubber. A sliding seat is nested between the two groups of arc tracks, and a universal ball is connected to the bottom end of the sliding seat, and a positioning hole is installed at the bottom end of the universal ball.

[0016] Optionally, a turntable 2 is installed at the edge of the mounting base, one end of the turntable 2 is connected to a screw rod 2, the outer surface of the screw rod 2 is sleeved with a threaded base 2, a clamping block is installed at the top of the threaded base 2, and the inner wall of the clamping block is in contact with the surface of the rubber gasket.

[0017] Optionally, the cleaning assembly includes a mounting rod, the mounting rod is mounted on one end of one group of arc tracks, a protective shell is sleeved on the middle part of the mounting rod, and an arc groove is penetrated on the surface of one end of the protective shell.

[0018] Optionally, a guide wheel is installed on one side of the mounting rod, and the number of the guide wheels is set to two groups, both groups of guide wheels are installed on the top of one side of the mounting rod, and the inner walls of the two groups of guide wheels are in contact with the nasogastric tube.

[0019] Optionally, a guide ring is installed on the inner wall of the protective shell, a cleaning ring is sleeved on the outer surface of the guide ring, the inner wall of the cleaning ring contacts the surface of the nasogastric tube, a collecting box is nested on the inner wall of the bottom end of the protective shell, and a counterweight is installed on the bottom end of the protective shell.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] In the above scheme, by setting a support component, the rotation cooperation between the rotating disk 1 and the screw rod 1 is utilized to realize the sliding lifting effect of the threaded base 1, and at the same time, in cooperation with the connection effect of the connecting rod 1, the lifting and lowering of one side of the bottom end of the arc-shaped guard plate is realized through the threaded base 1, and through the change of the position state of the arc-shaped guard plate, two groups of rubber pads are arranged on the top of the arc-shaped guard plate, and the oil resistance and good chemical stability of nitrile rubber are utilized to assist in supporting the head of the comatose patient, thereby avoiding hand fatigue caused by medical staff manually holding the head of the comatose patient for a long time, thereby avoiding the reduction of intubation efficiency and accuracy caused by hand fatigue of the medical staff, improving the operation convenience of medical staff when inserting nasogastric tubes into comatose patients, and further improving the insertion efficiency of nasogastric tubes into comatose patients.

[0022] By setting a positioning component, utilizing the rotational cooperation between the two sets of arc tracks and the direction-changing effect between the sliding seat and the universal ball, a positioning effect can be achieved at the port of the nasogastric tube when the nasogastric tube is inserted into the patient's nasal cavity. Medical staff can adjust the insertion angle and insertion direction of the nasogastric tube in both directions through the cooperation between the two sets of arc tracks when inserting the nasogastric tube according to the actual situation of the patient's nasal cavity, thereby improving the operational efficiency during the insertion of the nasogastric tube. At the same time, when the nasogastric tube is inserted, the rotational cooperation between the second turntable, the second screw and the second threaded base is utilized, and the friction force when the block and the rubber gasket collide is utilized to achieve a limiting effect on the two sets of arc tracks, thereby ensuring the stability of the nasogastric tube when it is inserted into the patient's stomach and aspirating the gastric contents.

[0023] By setting up a cleaning component, when the nasogastric tube is inserted into the patient's nasal cavity, the nasogastric tube is guided and transported by two sets of guide wheels to avoid entanglement of the rear end of the nasogastric tube that is not inserted into the patient's nasal cavity, thereby reducing the entanglement of the nasogastric tube during insertion and affecting the insertion efficiency of the nasogastric tube. At the same time, by setting gravity coordination between the protective shell, the collecting box and the counterweight block, when one set of arc tracks is rotated and positioned, the weight of the counterweight block itself and the gravity factor are used to keep the collecting box in a vertical downward state at all times. At the same time, when the nasogastric tube is pulled out, the gastric juice and residues adhered to the surface of the nasogastric tube are intercepted by the cleaning ring, and the surface of the nasogastric tube is preliminarily cleaned. At the same time, with the collection box, the intercepted gastric juice and residues can fall into the collection box under the action of gravity, thereby avoiding the gastric juice and residues from falling outside the collection box, thereby reducing the possibility of secondary contamination of the gastric juice. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0025] Figure 1 This is a schematic diagram of the structure of the gastric content extraction device of the present invention;

[0026] Figure 2 It is a schematic diagram of the rear view structure of the gastric content extraction device of the present invention;

[0027] Figure 3 This is a schematic diagram of the support assembly structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the arc-shaped guard plate and the rubber pad of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the positioning component of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of some components of the positioning component of the present invention;

[0031] Figure 7 For the present invention Figure 6 A magnified view of middle;

[0032] Figure 8 It is a schematic diagram of a partial cross-sectional structure of a positioning component of the present invention;

[0033] Fig. 9 This is a schematic diagram of the cleaning component structure of the present invention;

[0034] Fig.10 It is a schematic diagram of the structure of some components of the cleaning component of the present invention.

[0035] Reference numerals:

[0036] 1. Mounting base; 2. Rotating bracket; 3. Negative pressure suction device; 4. Negative pressure collection barrel; 5. Nasogastric tube; 6. Mounting seat; 7. Support assembly; 71. Rotating disk 1; 72. Screw 1; 73. Threaded base 1; 74. Limit rod; 75. Connecting rod 1; 76. Arc guard plate; 77. Rubber pad; 8. Positioning assembly; 81. Mounting base; 82. Positioning pin; 83. Arc track; 84. Rubber gasket; 85. Sliding seat; 86. Universal ball; 87. Positioning hole; 88. Turntable 2; 89. Screw 2; 810. Threaded base 2; 811. Block; 9. Cleaning assembly; 91. Mounting rod; 92. Protective shell; 93. Arc groove; 94. Guide wheel; 95. Guide ring; 96. Cleaning ring; 97. Collection box; 98. Counterweight.

[0037] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0038] The following is a detailed description of a gastric content extraction device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0039] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0040] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0041] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0042] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0043] like Figures 1 to 10 As shown, an embodiment of the present invention provides a gastric content extraction device, including a mounting base 1, a rotating bracket 2 is damped and installed on one side of the mounting base 1, a negative pressure aspirator 3 is installed on one end of the rotating bracket 2, one end of the negative pressure aspirator 3 is connected to a negative pressure collecting barrel 4, a nasogastric tube 5 is connected to the top of the negative pressure collecting barrel 4, a mounting seat 6 is installed on the top of the mounting base 1, a support assembly 7 is installed on one end of the mounting base 1, the support assembly 7 is used to assist the patient's head and neck, a positioning assembly 8 is installed on the top of the rotating bracket 2, the positioning assembly 8 is used to position the nasogastric tube 5, a cleaning assembly 9 is installed on one end of the positioning assembly 8, the cleaning assembly 9 is used to clean the surface of the nasogastric tube 5, the positioning assembly 8 is located on one side of the support assembly 7, and the cleaning assembly 9 is located on one side of the positioning assembly 8.

[0044] By setting the support component 7 and arranging two groups of rubber pads 77 on the top of the arc-shaped guard plate 76, the oil resistance and good chemical stability of nitrile rubber are utilized to provide auxiliary support for the head of the comatose patient, thereby avoiding hand fatigue caused by the medical staff manually holding the head of the comatose patient for a long time, thereby avoiding the reduction of intubation efficiency and accuracy caused by hand fatigue of the medical staff. By setting the positioning component 8 and the cooperation between the two groups of arc-shaped tracks 83, the insertion angle and insertion direction of the nasogastric tube 5 are adjusted in both directions to ensure the stability of the nasogastric tube 5 when it is inserted into the patient's stomach and the stomach contents are sucked. By setting the cleaning component 9, the gastric juice and residues adhered to the surface of the nasogastric tube 5 are intercepted by the cleaning ring 96, and the surface of the nasogastric tube 5 is preliminarily cleaned. At the same time, in cooperation with the collecting box 97, the intercepted gastric juice and residues can fall into the collecting box 97 under the action of gravity, thereby avoiding the gastric juice and residues from falling outside the collecting box 97, thereby reducing the possibility of secondary contamination of the gastric juice.

[0045] like Figure 3 to Figure 4 As shown, the support assembly 7 includes a rotating disk 71, which is mounted on one side of the bottom end of the mounting base 1, a screw 72 is connected to the top of the rotating disk 71, a threaded sleeve is provided with a threaded base 73 on the top of the screw 72, a limiting rod 74 is sleeved on the outer surface of the threaded base 73, and the limiting rod 74 is mounted on the inner wall of the top opening of the mounting base 1, a connecting rod 75 is installed on the top of the threaded base 73, one end of the connecting rod 75 is connected to an arc-shaped guard plate 76, one side of the bottom end of the arc-shaped guard plate 76 is connected to the mounting seat 6, a rubber pad 77 is installed on the top of the arc-shaped guard plate 76, the number of the rubber pads 77 is set to two groups, the two groups of rubber pads 77 are symmetrically installed on the top of the arc-shaped guard plate 76, and the material of the rubber pad 77 is set to nitrile rubber.

[0046] The medical staff first places the unconscious patient's head on the top of the rubber pad 77, and then the medical staff rotates the rotating disk 71. The rotating disk 71 drives the screw rod 72 to rotate synchronously. Under the rotation action of the screw rod 72, the threaded base 73 threadedly sleeved on the top of the screw rod 72 slides upward along the direction of the limit rod 74. The sliding of the threaded base 73 drives one end of the connecting rod 75 to slide upward synchronously. At the same time, the sliding of one end of the connecting rod 75 drives one end of the arc guard plate 76 to slide upward synchronously through the connection action of the connecting rod 75, so that one side of the bottom end of the arc guard plate 76 rotates and rises around the mounting seat 6. The rotation of the arc guard plate 76 drives the rubber pad 77 to rotate and rise synchronously, and the patient's head is supported and lifted by the two groups of rubber pads 77, so as to achieve the auxiliary support effect on the head of the comatose patient. When the patient's head is lifted, the medical staff tilts the patient's head to one side of the body.

[0047] By setting the rotational cooperation between the rotating disk 71 and the screw rod 72, the sliding lifting effect of the threaded base 73 is realized, and the lifting and lowering of the bottom end of the arc-shaped guard plate 76 is realized through the threaded base 73. By changing the position state of the arc-shaped guard plate 76, the head of the comatose patient is auxiliary supported, thereby avoiding hand fatigue caused by medical staff manually holding the head of the comatose patient for a long time, thereby avoiding the reduction of intubation efficiency and accuracy caused by hand fatigue of the medical staff.

[0048] like Figures 5 to 8 As shown, the positioning assembly 8 includes a mounting base plate 81, which is mounted on the top of the rotating bracket 2. The cross-section of the rotating bracket 2 is designed to be a circular structure. A positioning pin 82 is installed on the top of the mounting base plate 81. The number of the positioning pins 82 is set to multiple groups. The multiple groups of positioning pins 82 are installed on the top of the mounting base plate 81 at equal angles. The outer surface of the positioning pin 82 is sleeved with an arc track 83. The number of the arc track 83 is set to two groups. The two groups of arc tracks 83 are arranged in a "cross" shape. The top surface of one group of the arc tracks 83 of the two groups of arc tracks 83 is aligned with the bottom of the other group of arc tracks 83. The end surfaces are in contact with each other, and a rubber gasket 84 is installed on one end surface of the two sets of arc tracks 83. The material of the rubber gasket 84 is set to nitrile rubber. A sliding seat 85 is nested and installed between the two sets of arc tracks 83. The bottom end of the sliding seat 85 is connected to a universal ball 86, and the bottom end of the universal ball 86 is installed with a positioning hole 87. A turntable 88 is installed at the edge of the mounting base 81, and one end of the turntable 88 is connected to a screw 89. The outer surface of the screw 89 is sleeved with a threaded base 810. A block 811 is installed on the top of the threaded base 810, and the inner wall of the block 811 is in contact with the surface of the rubber gasket 84.

[0049] Subsequently, the medical staff rotates the rotating bracket 2, and while the rotating bracket 2 rotates, it drives the negative pressure suction device 3, the negative pressure collection bucket 4 and the positioning assembly 8 to rotate synchronously, and makes the positioning assembly 8 located at the top of the patient's nasal cavity. The medical staff inserts the nasogastric tube 5 in sequence and passes it through the guide wheel 94, the cleaning ring 96 and the positioning hole 87. At the same time, when inserting the nasogastric tube 5, the nasogastric tube 5 is guided by two sets of guide wheels 94 to avoid entanglement of the rear end of the nasogastric tube 5 that is not inserted into the patient's nasal cavity.

[0050] Then, the sliding seat 85 is pushed to drive one group of arc tracks 83 to slide along the arc direction of the other group of arc tracks 83, so that one group of arc tracks 83 rotates on the top of the mounting base plate 81. While the sliding seat 85 slides, it drives the universal ball 86 and the positioning hole 87 at the bottom to slide synchronously, and drives the port of the nasogastric tube 5 to move synchronously through the positioning hole 87, so that the nasogastric tube 5 is close to the nasal cavity side of the comatose patient.

[0051] Similarly, the sliding seat 85 drives the other set of arc-shaped tracks 83 to slide along the arc direction of one set of arc-shaped tracks 83, so that the other set of arc-shaped tracks 83 rotates at the top of the mounting base plate 81. When the sliding seat 85 slides, it drives the universal ball 86 and the positioning hole 87 at the bottom to slide synchronously, and drives the port of the nasogastric tube 5 to move synchronously through the positioning hole 87. Through the rotational cooperation between the two sets of arc-shaped tracks 83, the sliding seat 85 drives the universal ball 86 and the positioning hole 87 to change their positions, thereby achieving the positioning insertion effect of the nasogastric tube 5.

[0052] The medical staff pushes the sliding seat 85 to adjust the insertion angle of the nasogastric tube 5 in real time when the nasogastric tube 5 is inserted into the patient's nasal cavity. At the same time, the medical staff inserts the nasogastric tube 5 into the patient's nasal cavity through a tool, and then inserts the nasogastric tube 5 into the patient's stomach through the patient's nasal cavity, thereby completing the insertion of the nasogastric tube 5.

[0053] The medical staff rotates the turntable 88, and the rotation of the turntable 88 drives the screw 89 to rotate synchronously. Under the rotation of the screw 89, the threaded base 810 with a threaded sleeve on the outer surface of the screw 89 slides along the direction of the threaded base 810. The sliding of the threaded base 810 drives the block 811 to slide synchronously. The block 811 slides and approaches and presses the rubber gasket 84 on the surface of one end of the arc track 83. Under the action of the friction force and the resistance force between the contact surface of the rubber gasket 84 and the block 811, the adjusted positions of the two sets of arc tracks 83 are limited to prevent the two sets of arc tracks 83 from continuing to rotate and causing the insertion position of the nasogastric tube 5 to change.

[0054] By providing two sets of arc tracks 83, utilizing the rotational coordination between the two sets of arc tracks 83, and cooperating with the direction-changing effect between the sliding seat 85 and the universal ball 86, when the nasogastric tube 5 is inserted into the patient's nasal cavity, the positioning effect at the port of the nasogastric tube 5 is achieved, thereby improving the operational efficiency when inserting the nasogastric tube 5. At the same time, when the nasogastric tube 5 is inserted, the friction force when the block 811 and the rubber gasket 84 collide with each other is utilized to achieve a limiting effect on the two sets of arc tracks 83.

[0055] like Figures 9 and 10 As shown, the cleaning assembly 9 includes a mounting rod 91, which is mounted at one end of one group of arc tracks 83. A protective shell 92 is sleeved on the middle part of the mounting rod 91, and an arc groove 93 is penetrated on the surface of one end of the protective shell 92. A guide wheel 94 is mounted on one side of the mounting rod 91. The number of guide wheels 94 is set to two groups. Both groups of guide wheels 94 are mounted on the top of one side of the mounting rod 91. The inner walls of the two groups of guide wheels 94 are in contact with the nasogastric tube 5. A guide ring 95 is mounted on the inner wall of the protective shell 92. A cleaning ring 96 is sleeved on the outer surface of the guide ring 95. The inner wall of the cleaning ring 96 is in contact with the surface of the nasogastric tube 5. A collecting box 97 is nested on the inner wall of the bottom end of the protective shell 92, and a counterweight block 98 is mounted on the bottom end of the protective shell 92.

[0056] Subsequently, the medical staff activates the negative pressure suction device 3 , which extracts the contents of the patient's stomach through the nasogastric tube 5 under the action of negative pressure, and collects the extracted stomach contents in a centralized manner through the negative pressure collection barrel 4 .

[0057] When one set of arc tracks 83 rotates, the arc tracks 83 drive the mounting rods 91 to rotate synchronously. The mounting rods 91 rotate along with the arc tracks 83 and drive the protective shell 92 and the counterweight 98 to rotate synchronously. Under the action of the weight of the counterweight 98 and gravity, the counterweight 98 drives the protective shell 92 to rotate on the surface of the mounting rods 91. The counterweight 98 keeps the protective shell 92 in a vertical downward position.

[0058] When the negative pressure suction device 3 finishes extracting the patient's gastric contents, the medical staff removes the nasogastric tube 5 from the patient's nasal cavity and moves the port of the nasogastric tube 5 away from the patient's stomach. When the nasogastric tube 5 completely leaves the patient's nasal cavity, the medical staff continues to pull the nasogastric tube 5. When the nasogastric tube 5 passes through the cleaning ring 96, the gastric juice and residues adhered to the surface of the nasogastric tube 5 are intercepted under the contact action of the cleaning ring 96, and dripped under the action of gravity. The dripping gastric juice and residues enter the collection box 97 under the action of gravity, and the gastric juice and residues collected in the collection box 97 are subsequently centrally processed.

[0059] By setting the guide wheels 94, when the nasogastric tube 5 is inserted into the patient's nasal cavity, the nasogastric tube 5 is guided and transported by two groups of guide wheels 94 to avoid entanglement in the rear end of the nasogastric tube 5 that is not inserted into the patient's nasal cavity. At the same time, by setting the gravity coordination among the protective shell 92, the collecting box 97 and the counterweight block 98, when the nasogastric tube 5 is pulled out, the gastric juice and residues adhered to the surface of the nasogastric tube 5 are intercepted by the cleaning ring 96, and the surface of the nasogastric tube 5 is preliminarily cleaned.

[0060] The working principle of the technical solution provided by the present invention is as follows:

[0061] The medical staff first places the unconscious patient's head on the top of the rubber pad 77, and then the medical staff rotates the rotating disk 71. The rotating disk 71 drives the screw rod 72 to rotate synchronously. Under the rotation action of the screw rod 72, the threaded base 73 threadedly sleeved on the top of the screw rod 72 slides upward along the direction of the limit rod 74. The sliding of the threaded base 73 drives one end of the connecting rod 75 to slide upward synchronously. At the same time, the sliding of one end of the connecting rod 75 drives one end of the arc guard plate 76 to slide upward synchronously through the connection action of the connecting rod 75, so that one side of the bottom end of the arc guard plate 76 rotates and rises around the mounting seat 6. The rotation of the arc guard plate 76 drives the rubber pad 77 to rotate and rise synchronously, and the patient's head is supported and lifted by the two groups of rubber pads 77, so as to achieve the auxiliary support effect on the head of the comatose patient. When the patient's head is lifted, the medical staff tilts the patient's head to one side of the body.

[0062] Subsequently, the medical staff rotates the rotating bracket 2, and while the rotating bracket 2 rotates, it drives the negative pressure suction device 3, the negative pressure collection bucket 4 and the positioning assembly 8 to rotate synchronously, and makes the positioning assembly 8 located at the top of the patient's nasal cavity. The medical staff inserts the nasogastric tube 5 in sequence and passes it through the guide wheel 94, the cleaning ring 96 and the positioning hole 87. At the same time, when inserting the nasogastric tube 5, the nasogastric tube 5 is guided by two sets of guide wheels 94 to avoid entanglement of the rear end of the nasogastric tube 5 that is not inserted into the patient's nasal cavity.

[0063] Then, the sliding seat 85 is pushed to drive one group of arc tracks 83 to slide along the arc direction of the other group of arc tracks 83, so that one group of arc tracks 83 rotates on the top of the mounting base plate 81. While the sliding seat 85 slides, it drives the universal ball 86 and the positioning hole 87 at the bottom to slide synchronously, and drives the port of the nasogastric tube 5 to move synchronously through the positioning hole 87, so that the nasogastric tube 5 is close to the nasal cavity side of the comatose patient.

[0064] Similarly, the sliding seat 85 drives the other set of arc-shaped tracks 83 to slide along the arc direction of one set of arc-shaped tracks 83, so that the other set of arc-shaped tracks 83 rotates at the top of the mounting base plate 81. When the sliding seat 85 slides, it drives the universal ball 86 and the positioning hole 87 at the bottom to slide synchronously, and drives the port of the nasogastric tube 5 to move synchronously through the positioning hole 87. Through the rotational cooperation between the two sets of arc-shaped tracks 83, the sliding seat 85 drives the universal ball 86 and the positioning hole 87 to change their positions, thereby achieving the positioning insertion effect of the nasogastric tube 5.

[0065] The medical staff pushes the sliding seat 85 to adjust the insertion angle of the nasogastric tube 5 in real time when the nasogastric tube 5 is inserted into the patient's nasal cavity. At the same time, the medical staff inserts the nasogastric tube 5 into the patient's nasal cavity through a tool, and then inserts the nasogastric tube 5 into the patient's stomach through the patient's nasal cavity, thereby completing the insertion of the nasogastric tube 5.

[0066] The medical staff rotates the turntable 88, and the rotation of the turntable 88 drives the screw 89 to rotate synchronously. Under the rotation of the screw 89, the threaded base 810 with a threaded sleeve on the outer surface of the screw 89 slides along the direction of the threaded base 810. The sliding of the threaded base 810 drives the block 811 to slide synchronously. The block 811 slides and approaches and presses the rubber gasket 84 on the surface of one end of the arc track 83. Under the action of the friction force and the resistance force between the contact surface of the rubber gasket 84 and the block 811, the adjusted positions of the two sets of arc tracks 83 are limited to prevent the two sets of arc tracks 83 from continuing to rotate and causing the insertion position of the nasogastric tube 5 to change.

[0067] Subsequently, the medical staff activates the negative pressure suction device 3 , which extracts the contents of the patient's stomach through the nasogastric tube 5 under the action of negative pressure, and collects the extracted stomach contents in a centralized manner through the negative pressure collection barrel 4 .

[0068] When one set of arc tracks 83 rotates, the arc tracks 83 drive the mounting rods 91 to rotate synchronously. The mounting rods 91 rotate along with the arc tracks 83 and drive the protective shell 92 and the counterweight 98 to rotate synchronously. Under the action of the weight of the counterweight 98 and gravity, the counterweight 98 drives the protective shell 92 to rotate on the surface of the mounting rods 91. The counterweight 98 keeps the protective shell 92 in a vertical downward position.

[0069] When the negative pressure suction device 3 finishes extracting the patient's gastric contents, the medical staff removes the nasogastric tube 5 from the patient's nasal cavity and moves the port of the nasogastric tube 5 away from the patient's stomach. When the nasogastric tube 5 completely leaves the patient's nasal cavity, the medical staff continues to pull the nasogastric tube 5. When the nasogastric tube 5 passes through the cleaning ring 96, the gastric juice and residues adhered to the surface of the nasogastric tube 5 are intercepted under the contact action of the cleaning ring 96, and dripped under the action of gravity. The dripping gastric juice and residues enter the collection box 97 under the action of gravity, and the gastric juice and residues collected in the collection box 97 are subsequently centrally processed.

[0070] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0071] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A gastric content extraction device, characterized in that: It includes a mounting base, a rotating bracket is damped and mounted on one side of the mounting base, a negative pressure suction device is mounted on one end of the rotating bracket, a negative pressure suction device is connected to a negative pressure collection bucket at one end, a nasogastric tube is connected to the top of the negative pressure collection bucket, and a mounting seat is mounted on the top of the mounting base; Also included is a support assembly, one end of the mounting base is equipped with a support assembly, and the support assembly is used to provide auxiliary support for the patient's head; A positioning component is installed on the top of the rotating bracket, and the positioning component is used to position the nasogastric tube; A cleaning component, wherein one end of the positioning component is provided with a cleaning component, and the cleaning component is used to clean the surface of the nasogastric tube; The positioning component is located at one side of the supporting component, and the cleaning component is located at one side of the positioning component.

2. The gastric content extraction device according to claim 1, characterized in that: The support assembly includes a rotating disk 1, which is installed on one side of the bottom end of the mounting base. A screw rod 1 is connected to the top of the rotating disk 1. A threaded base 1 is threadedly sleeved on the top end of the screw rod. A limiting rod is sleeved on the outer surface of the threaded base 1, and the limiting rod is installed on the inner wall of the opening at the top end of the mounting base.

3. The gastric content extraction device according to claim 2, characterized in that: A connecting rod is installed at the top of the threaded base, and one end of the connecting rod is connected to an arc-shaped guard plate. One side of the bottom end of the arc-shaped guard plate is connected to the mounting seat, and a rubber pad is installed at the top of the arc-shaped guard plate. The number of the rubber pads is set to two groups, and the two groups of rubber pads are symmetrically installed at the top of the arc-shaped guard plate. The material of the rubber pad is set to nitrile rubber.

4. The gastric content extraction device according to claim 3, characterized in that: The positioning assembly includes a mounting base plate, and the mounting base plate is mounted on the top of the rotating bracket. The cross section of the rotating bracket is designed to be a circular structure.

5. The gastric content extraction device according to claim 4, characterized in that: A locating pin is installed at the top of the mounting base plate, and the number of the locating pins is set to multiple groups. The multiple groups of locating pins are installed at the top of the mounting base plate at equal angles. An arc track is sleeved on the outer surface of the locating pin. The number of the arc track is set to two groups. The two groups of arc tracks are arranged in a "cross" shape. The top end surface of one group of the two groups of arc tracks contacts the bottom end surface of the other group of arc tracks.

6. The gastric content extraction device according to claim 5, characterized in that: A rubber gasket is installed on one end surface of the two groups of arc tracks, and the material of the rubber gasket is set to nitrile rubber. A sliding seat is nested between the two groups of arc tracks, and a universal ball is connected to the bottom end of the sliding seat, and a positioning hole is installed at the bottom end of the universal ball.

7. The gastric content extraction device according to claim 6, characterized in that: A turntable 2 is installed at the edge of the installation base plate, one end of the turntable 2 is connected to a screw rod 2, the outer surface of the screw rod 2 is sleeved with a threaded base 2, a clamping block is installed on the top of the threaded base 2, and the inner wall of the clamping block is in contact with the surface of the rubber gasket.

8. The gastric content extraction device according to claim 7, characterized in that: The cleaning assembly comprises a mounting rod, which is mounted at one end of one group of arc tracks. A protective shell is sleeved on the middle part of the mounting rod, and an arc groove is penetrated on the surface of one end of the protective shell.

9. The gastric content extraction device according to claim 8, characterized in that: A guide wheel is installed on one side of the mounting rod. The number of the guide wheels is set to two groups. The two groups of guide wheels are installed on the top of one side of the mounting rod. The inner walls of the two groups of guide wheels are in contact with the nasogastric tube.

10. The gastric content extraction device according to claim 9, characterized in that: A guide ring is installed on the inner wall of the protective shell, a cleaning ring is sleeved on the outer surface of the guide ring, the inner wall of the cleaning ring contacts the surface of the nasogastric tube, a collecting box is nested on the inner wall of the bottom end of the protective shell, and a counterweight is installed on the bottom end of the protective shell.

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