Gastrointestinal decompression device

Abstract

The present invention relates to the technical field of medical equipment, and specifically to a gastrointestinal decompression device, comprising a suction cylinder, wherein a central axis extending in an up-down direction is provided inside the suction cylinder, a rotating frame is rotatably provided on the central axis, a plurality of diaphragms are provided on the rotating frame, the diaphragms divide the suction cylinder into a plurality of storage chambers, the storage chambers are used to store gastric contents, the diaphragms can shrink in the up-down direction, a sliding plate is provided at the bottom of the suction cylinder, a tension spring is connected between the sliding plate and the bottom of the suction cylinder, the sliding plate can slide up and down along the rotating frame, the lower end of the diaphragm is connected to the sliding plate, the sliding plate can rotate along the central axis to drive the rotating frame to rotate, and the sliding plate can move up and down relative to the rotating frame, so that negative pressure is formed in the plurality of storage chambers and the gastric contents are sucked in sequence, so that the gastric contents sucked in different time periods are separated in their respective storage chambers to avoid mixing.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a gastrointestinal decompression device. Background Art

[0002] Gastrointestinal decompression is a method of inserting a gastric tube from the oral or nasal cavity, connecting a disposable gastrointestinal decompression device, and drawing the gastric contents out of the patient's body under the action of negative pressure and siphon principle. This method can suck out the gas or liquid in the gastrointestinal tract, reduce the pressure in the gastrointestinal tract, reduce the degree of gastrointestinal distension, improve the blood circulation of the gastrointestinal wall, and promote the healing of stomach wounds and the recovery of function.

[0003] The gastrointestinal decompression device in the prior art is only provided with one storage chamber, so that the gastric contents extracted in different time periods are mixed together, so that the doctor cannot accurately judge the composition of the gastric contents in each time period, which is not conducive to the judgment of the condition. Summary of the invention

[0004] Based on this, it is necessary to provide a gastrointestinal decompression device to address the technical problem that the current gastrointestinal decompression device is not conducive to the diagnosis of the disease.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A gastrointestinal decompression device comprises a suction cylinder, wherein a gastric tube is connected to the top of the suction cylinder, and the gastric tube is used to extend into the stomach of a human body, wherein the interior of the suction cylinder is provided with a central axis extending in an up-and-down direction, and a rotating frame is rotatably provided on the central axis, and a plurality of diaphragms are provided on the rotating frame, and the diaphragms are evenly distributed in the circumference of the central axis, and the diaphragms divide the suction cylinder into a plurality of storage cavities, and the storage cavities are used to store gastric contents, and the diaphragms can shrink in the up-and-down directions, and a sliding plate is provided at the bottom of the suction cylinder, and a tension spring is connected between the sliding plate and the bottom of the suction cylinder, and the tension spring has a tendency to move the sliding plate downward, and the lower end of the diaphragm is connected to the sliding plate, and the sliding plate can rotate along the central axis to drive the rotating frame to rotate, and the sliding plate can move up and down relative to the rotating frame, so that negative pressure is formed in the plurality of storage cavities and the gastric contents are sucked in sequence.

[0007] Furthermore, the rotating frame includes a central tube, which is coaxially rotatably arranged on the central axis, and a plurality of storage tubes are fixedly arranged on the top of the central tube, and the storage tubes extend in the radial direction of the central tube and are evenly distributed along the circumference of the central tube, and a reel is coaxially arranged inside the storage tube, and both ends of the reel are connected to the storage tube through a coil spring, and the end of the diaphragm away from the sliding plate is fixedly connected to the reel.

[0008] Furthermore, a sealing rod is fixedly provided at one end of the storage cylinder away from the center cylinder, and the sealing rod extends in the up and down directions. The sealing rod is sealingly slidably matched with the inner wall of the suction cylinder. Along the radial direction of the center cylinder, one side of the diaphragm is sealingly slidably matched with the center cylinder, and the other side is sealingly slidably matched with the sealing rod.

[0009] Furthermore, a slide rail extending in the up-down direction is provided on one side of the sealing rod close to the central tube, and slide grooves are provided around the sliding plate, and the slide grooves are slidably matched with the slide rails.

[0010] Furthermore, a spiral groove is provided on the central axis, and the sliding plate has a central hole. The sliding plate can slide up and down along the central tube through the central hole. A sliding block is provided on the inner circumference of the central hole. The sliding block can slide along the spiral groove. An avoidance groove extending up and down is provided on the central tube, and the sliding block can pass through the avoidance groove and enter the spiral groove.

[0011] Furthermore, the bottom of the tension spring is fixedly connected to the bottom of the suction cylinder, and the top of the tension spring is rotatably connected to the sliding plate.

[0012] Furthermore, an opening is provided above the suction cylinder, and a pressure relief piece is provided in the opening, and the pressure relief piece includes a sealing cover and a pressure relief spring piece. The sealing cover is located on the outer circumferential surface of the suction cylinder, and the pressure relief spring piece is elastically clamped in the opening. A connecting rod is connected between the sealing cover and the pressure relief spring piece, and the sealing rod can press the pressure relief spring piece during rotation, thereby opening the opening, and further connecting the storage chamber that has completed suction with the outside world.

[0013] Furthermore, each of the sealing rods is provided with a pressure relief chamber extending in the up-and-down direction, and the pressure relief chamber corresponds to and is connected with the storage chamber one by one. A baffle is provided in the pressure relief chamber, and an annular connecting port is provided on the baffle. A wind shield is provided on the baffle, and a sliding rod is provided on the upper side of the wind shield. The sliding rod is arranged on the baffle through a spring. When the storage chamber is under negative pressure, the wind shield closes the annular connecting port, and when the storage chamber is under normal pressure, the wind shield opens the annular connecting port.

[0014] Furthermore, an annular through groove is provided on the bottom surface of the suction cylinder, and the annular through groove is used for a person's hand to extend into so as to rotate the sliding plate.

[0015] Furthermore, a liquid inlet and a plurality of pressure-stabilizing valves are provided on the top of the suction cylinder, the liquid inlet is connected to the gastric tube, the pressure-stabilizing valve keeps the negative pressure in the storage cavity at a set value, and the liquid inlet and the plurality of pressure-stabilizing valves are evenly distributed around the central axis.

[0016] The beneficial effects of the present invention are:

[0017] When the gastrointestinal decompression device provided by the present invention is used, the sliding plate is first made to slide upward along the central axis, so that the sliding plate drives the diaphragm to contract until the gas in each storage cavity is gradually squeezed out, and then the sliding plate is released. The sliding plate moves downward along the central axis under the action of the tension spring, so that the volume of each storage cavity is increased to form a negative pressure. Since the sliding plate drives the rotating frame to rotate while moving downward, the rotation of the rotating frame drives the storage cavities to rotate, so that multiple storage cavities can use negative pressure to suck gastric contents in turn, so that the gastric contents sucked in different time periods are separated in their respective storage cavities, and the gastric contents in different time periods are prevented from mixing.

[0018] Secondly, the negative pressure of each storage chamber is close to the same, so that the suction force of the gastric contents is consistent, ensuring the suction effect of the gastric contents at different time periods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a gastrointestinal decompression device provided by an embodiment of the present invention;

[0020] Figure 2 An explosion diagram of a gastrointestinal decompression device provided by an embodiment of the present invention;

[0021] Figure 3 A schematic side view of a gastrointestinal decompression device provided by one embodiment of the present invention;

[0022] Figure 4 for Figure 3 Middle AA section view;

[0023] Figure 5 for Figure 3 Middle BB section view;

[0024] Figure 6 for Figure 3 Middle CC section view;

[0025] Figure 7 for Figure 4 A magnified view of the structure at D in the middle;

[0026] Figure 8 for Figure 5 Enlarged view of the structure at E in the middle;

[0027] Fig. 9 for Figure 6 Enlarged view of the structure at F in the middle.

[0028] Among them: 100, gastric tube; 200, suction cylinder; 201, pressure-stabilizing valve; 202, central axis; 2021, sealing cover; 2022, pressure-releasing spring; 203, annular groove; 204, liquid inlet; 205, exhaust port; 300, rotating frame; 301, storage cylinder; 302, sealing rod; 3021, wind shield; 3022, spring; 3023, one-way air inlet valve; 3024, annular connecting port; 3025, through hole; 3026, slide rail; 303, central cylinder; 3031, avoidance groove; 304, diaphragm; 305, reel; 400, sliding plate; 401, tension spring; 402, slide groove; 403, fixed plate. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is 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 to the present invention.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] like Figures 1 to 9As shown, a gastrointestinal decompression device provided by an embodiment of the present invention includes a suction cylinder 200, a stomach tube 100 is connected to the upper part of the suction cylinder 200, and the stomach tube 100 is used to extend into the stomach of a human body. A central axis 202 extending in the up-down direction is provided inside the suction cylinder 200, and a rotating frame 300 is rotatably provided on the central axis 202. A plurality of diaphragms 304 are provided on the rotating frame 300. The diaphragms 304 are evenly distributed around the circumference of the central axis 202. The diaphragms 304 divide the suction cylinder 200 into a plurality of storage cavities, and the storage cavities are used to store gastric gas. The diaphragm 304 can shrink in the up and down directions, a sliding plate 400 is provided at the bottom of the suction cylinder 200, and a tension spring 401 is connected between the sliding plate 400 and the bottom of the suction cylinder 200, and the tension spring 401 has a tendency to move the sliding plate 400 downward, and the lower end of the diaphragm 304 is connected to the sliding plate 400, and the sliding plate 400 can rotate along the central axis 202 to drive the rotating frame 300 to rotate, and the sliding plate 400 can move up and down relative to the rotating frame 300, so that multiple storage chambers form negative pressure and suck the gastric contents in turn.

[0033] Specifically, four diaphragms 304 are provided to form four storage chambers. The lower end of the diaphragm 304 is connected to the fixing plate 403 by bolts, and the fixing plate 403 is fixedly connected to the sliding plate 400. The diaphragm 304 is made of plastic material.

[0034] In one embodiment, the rotating frame 300 includes a central tube 303, which is coaxially rotatably arranged on the central axis 202. A plurality of storage tubes 301 are fixedly arranged on the top of the central tube 303. The storage tubes 301 extend in the radial direction of the central tube 303 and are evenly distributed along the circumference of the central tube 303. A reel 305 is coaxially arranged inside the storage tube 301. Both ends of the reel 305 are connected to the storage tube 301 through a coil spring, and the end of the diaphragm 304 away from the sliding plate 400 is fixedly connected to the reel 305.

[0035] In one embodiment, a sealing rod 302 is fixedly provided at one end of the storage cylinder 301 away from the central cylinder 303, and the sealing rod 302 extends in the up-down direction. The sealing rod 302 is in sealing and sliding cooperation with the inner wall of the suction cylinder 200. Along the radial direction of the central cylinder 303, one side of the diaphragm 304 is in sealing and sliding cooperation with the central cylinder 303, and the other side is in sealing and sliding cooperation with the sealing rod 302. Specifically, a sealing groove (not shown in the figure) is provided on the outer peripheral surface of the central cylinder 303 and the inner side surface of the sealing rod 302, so that the diaphragm 304 is sealingly slidable in the sealing groove.

[0036] In one embodiment, a slide rail 3026 extending in the up-down direction is provided on one side of the sealing rod 302 close to the central tube 303 , and a slide groove 402 is provided around the sliding plate 400 , and the slide groove 402 is slidably matched with the slide rail 3026 .

[0037] In one embodiment, a spiral groove is provided on the central shaft 202, and the sliding plate 400 has a central hole. The sliding plate 400 can slide up and down along the central tube 303 through the central hole. A slider (not shown in the figure) is provided on the inner circumference of the central hole. The slider can slide along the spiral groove. The central tube 303 is provided with an avoidance groove 3031 extending up and down, and the slider can pass through the avoidance groove 3031 and enter the spiral groove.

[0038] In one embodiment, the bottom of the tension spring 401 is fixedly connected to the bottom of the suction cylinder 200 , and the top of the tension spring 401 is rotatably connected to the sliding plate 400 .

[0039] In one embodiment, an opening is provided above the suction cylinder 200, and a pressure relief piece is provided in the opening, and the pressure relief piece includes a sealing cover 2021 and a pressure relief spring piece 2022. The sealing cover 2021 is located on the outer circumferential surface of the suction cylinder 200, and the pressure relief spring piece 2022 is elastically clamped in the opening. A connecting rod is connected between the sealing cover 2021 and the pressure relief spring piece 2022, and the sealing rod 302 can press the pressure relief spring piece 2022 during the rotation process, so that the opening is opened, and the storage cavity after the suction is completed is connected to the outside world.

[0040] In one embodiment, each of the sealing rods 302 is provided with a pressure relief chamber extending in the up-down direction, and the pressure relief chamber corresponds to and communicates with the storage chamber through a through hole 3025. A baffle is provided in the pressure relief chamber, and an annular communication port 3024 is provided on the baffle. A windshield 3021 is provided on the baffle, and a sliding bar is provided on the upper side of the windshield 3021. The sliding bar is arranged on the baffle through a spring 3022. When the storage chamber is under negative pressure, the windshield 3021 closes the annular communication port 3024, and when the storage chamber is under normal pressure, the windshield 3021 opens the annular communication port 3024. A one-way air inlet valve 3023 is also provided in the pressure relief chamber, and the one-way air inlet valve 3023 only allows gas to enter the storage chamber, while preventing the liquid in the storage chamber from flowing out.

[0041] In one embodiment, the bottom surface of the suction cylinder 200 is provided with an annular groove 203, and the annular groove 203 is used for a human hand to extend into and rotate the sliding plate 400. Specifically, a toggle block or a friction structure can be provided at the bottom of the sliding plate 400 to facilitate the human hand to rotate the sliding plate 400.

[0042] In one embodiment, a liquid inlet 204 and a plurality of pressure-stabilizing valves 201 are provided at the top of the suction cylinder 200, and the liquid inlet 204 is connected to the gastric tube 100. The pressure-stabilizing valve 201 keeps the negative pressure in the storage cavity at a set value. The set value may be -5 Pa, or close to -5 Pa. Three pressure-stabilizing valves 201 are provided, and the pressure-stabilizing valves 201 and the liquid inlet 204 are evenly distributed around the central axis 202. An exhaust port 205 is also provided at the top of the suction cylinder 200, and the exhaust port 205 is used to discharge the gas inside the storage cavity.

[0043] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows:

[0044] In the initial state, the sliding plate 400 is located at the bottom of the suction cylinder 200 under the action of the tension spring 401, and the stomach tube 100 is in a closed state using a clamp. A person reaches into the annular groove 203 at the bottom of the suction cylinder 200 and rotates the sliding plate 400, so that the slider of the sliding plate 400 slides along the spiral groove of the central axis 202, so that the sliding plate 400 rotates counterclockwise (from top to bottom) and moves upward at the same time, and the sliding plate 400 rotates counterclockwise to drive the rotating frame 300 to rotate counterclockwise, so that the four storage chambers also rotate counterclockwise, and the upward movement of the sliding plate 400 drives the diaphragm 304 to be rolled up by the reel 305, so that the volume of the four storage chambers gradually decreases until the gas in the four storage chambers is discharged through the exhaust port 205, and then the cover on the exhaust port 205 is covered to close the exhaust port 205, and the volume in the storage chamber is reduced to a minimum. Then release the sliding plate 400, which will move downward and rotate clockwise under the action of the tension spring 401. The sliding plate 400 moves downward and drives the diaphragm 304 to extend downward, so that the volume of the four storage chambers gradually increases to form a negative pressure. The negative pressures of the four storage chambers are close to the same, and the four storage chambers rotate clockwise at the same time. Set the first storage chamber to be connected to the liquid inlet 204, and the second storage chamber, the third storage chamber, and the fourth storage chamber are respectively connected in the counterclockwise direction. Then open the gastric tube 100, and the gastric contents will first enter the first storage chamber under the action of the negative pressure, so that the pressure in the first storage chamber gradually increases, and the negative pressures of the second storage chamber, the third storage chamber, and the fourth storage chamber are maintained at the set value under the action of the pressure regulating valve 201.

[0045] When the sealing rod 302 shared by the first storage chamber and the second storage chamber rotates to the position of contacting the pressure release spring sheet 2022, the pressure release spring sheet 2022 will be squeezed to make the sealing cover 2021 open the opening on the suction cylinder 200, thereby connecting the first storage chamber after suction with the outside world, and then the first storage chamber becomes a normal pressure state. As the sliding plate 400 rotates clockwise, the second storage chamber, the third storage chamber and the fourth storage chamber are filled with gastric contents in turn and become a normal pressure state. Since the negative pressure of each storage chamber is basically the same, the suction force of the gastric contents is close.

[0046] In the above process, when the first storage chamber, the second storage chamber, the third storage chamber, and the fourth storage chamber are all in a negative pressure state, the windshield 3021 in the pressure relief chamber in each sealing rod 302 closes the annular communication port 3024 under the action of the negative pressure, so that the first storage chamber, the second storage chamber, the third storage chamber, and the fourth storage chamber are kept in a negative pressure state. When the first storage chamber, the second storage chamber, the third storage chamber, and the fourth storage chamber are successively filled with stomach contents and are no longer in a negative pressure state, the windshield 3021 in the pressure relief chamber in each sealing rod 302 opens the annular communication port 3024 under the action of the spring 3022, so that each storage chamber is kept in a normal pressure state. In this way, when the sliding plate 400 continues to rotate clockwise and move downward, the storage chamber that has been filled with stomach contents can still maintain a normal pressure state.

[0047] After the first storage cavity is filled with gastric contents, if there is no need to continue extracting gastric contents, the gastric tube 100 can be closed and the sliding plate 400 can be pressed to prevent it from moving downward. If the gastric contents need to be extracted again after a certain period of time, the gastric tube 100 can be opened and the sliding plate 400 can be loosened to allow it to continue moving downward and rotate clockwise, so that gastric contents in different time periods can be extracted to avoid mixing of gastric contents in different time periods.

[0048] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A gastrointestinal decompression device, characterized in that: The invention comprises a suction cylinder, wherein a gastric tube is connected to the top of the suction cylinder, wherein the gastric tube is used to extend into the stomach of a human body, wherein a central axis extending in the up-down direction is provided inside the suction cylinder, wherein a rotating frame is rotatably provided on the central axis, wherein a plurality of diaphragms are provided on the rotating frame, wherein the diaphragms are evenly distributed in the circumference of the central axis, wherein the diaphragms divide the suction cylinder into a plurality of storage cavities, wherein the storage cavities are used to store stomach contents, wherein the diaphragms can shrink in the up-down direction, wherein a sliding plate is provided at the bottom of the suction cylinder, wherein a tension spring is connected between the sliding plate and the bottom of the suction cylinder, wherein the tension spring has a tendency to move the sliding plate downward, and wherein the diaphragms The lower end is connected to the sliding plate, and the sliding plate can rotate along the central axis to drive the rotating frame to rotate. At the same time, the sliding plate can move up and down relative to the rotating frame, so that multiple storage chambers form negative pressure and suck the gastric contents in turn. The rotating frame includes a central tube, and the central tube is coaxially rotatably arranged on the central axis. A plurality of storage tubes are fixedly arranged on the top of the central tube, and the storage tubes extend along the radial direction of the central tube and are evenly distributed along the circumference of the central tube. A reel is coaxially arranged in the storage tube, and both ends of the reel are connected to the storage tube through a coil spring, and the end of the diaphragm away from the sliding plate is fixedly connected to the reel.

2. The gastrointestinal decompression device according to claim 1, characterized in that: A sealing rod is fixedly provided at one end of the storage cylinder away from the center cylinder. The sealing rod extends in the up and down directions. The sealing rod is sealingly slidably matched with the inner wall of the suction cylinder. Along the radial direction of the center cylinder, one side of the diaphragm is sealingly matched with the center cylinder, and the other side is sealingly matched with the sealing rod.

3. The gastrointestinal decompression device according to claim 2, characterized in that: A slide rail extending in the up-down direction is arranged on one side of the sealing rod close to the central tube, and slide grooves are arranged around the sliding plate, and the slide grooves are slidably matched with the slide rails.

4. The gastrointestinal decompression device according to claim 3, characterized in that: The central axis is provided with a spiral groove, and the sliding plate has a central hole. The sliding plate can slide up and down along the central tube through the central hole. A sliding block is provided on the inner circumference of the central hole. The sliding block can slide along the spiral groove. The central tube is provided with an avoidance groove extending up and down, and the sliding block can pass through the avoidance groove and enter the spiral groove.

5. The gastrointestinal decompression device according to claim 1, characterized in that: The bottom of the tension spring is fixedly connected to the bottom of the suction cylinder, and the top of the tension spring is rotatably connected to the sliding plate.

6. The gastrointestinal decompression device according to claim 2, characterized in that: An opening is provided above the suction cylinder, and a pressure relief piece is provided in the opening. The pressure relief piece includes a sealing cover and a pressure relief spring. The sealing cover is located on the outer circumferential surface of the suction cylinder, and the pressure relief spring is elastically clamped in the opening. A connecting rod is connected between the sealing cover and the pressure relief spring. The sealing rod can press the pressure relief spring during rotation, thereby opening the opening, and further connecting the storage chamber that has been sucked to the outside world.

7. The gastrointestinal decompression device according to claim 6, characterized in that: Each of the sealing rods is provided with a pressure relief chamber extending in the up-and-down direction, and the pressure relief chamber corresponds to and is connected with the storage chamber one by one. A baffle is provided in the pressure relief chamber, and an annular connecting port is provided on the baffle. A wind shield is provided on the baffle, and a sliding rod is provided on the upper side of the wind shield, and the sliding rod is arranged on the baffle through a spring. When the storage chamber is under negative pressure, the wind shield closes the annular connecting port, and when the storage chamber is under normal pressure, the wind shield opens the annular connecting port.

8. The gastrointestinal decompression device according to claim 1, characterized in that: An annular through groove is provided on the bottom surface of the suction cylinder, and the annular through groove is used for a person's hand to extend into so as to rotate the sliding plate.

9. The gastrointestinal decompression device according to claim 1, characterized in that: A liquid inlet and a plurality of pressure-stabilizing valves are provided on the top of the suction cylinder. The liquid inlet is connected to the stomach tube. The pressure-stabilizing valve keeps the negative pressure in the storage cavity at a set value. The liquid inlet and the plurality of pressure-stabilizing valves are evenly distributed around the central axis.

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