A digestive nursing gastrointestinal decompression device

Abstract

The application provides a digestive nursing gastrointestinal decompression device and relates to the technical field of digestive nursing devices. The device comprises a liquid pumping mechanism, a gastric juice suction cavity is formed in the inner part of the cylinder of the liquid pumping mechanism, a first docking channel and a second docking channel are arranged at the bottom of the cylinder and are connected with the gastric juice suction cavity, a piston body is arranged in the gastric juice suction cavity, an installation cavity is arranged in the inner part of the piston body, a suction control mechanism is arranged in the installation cavity and can block or open the bottom of the installation cavity; when the suction force of the negative pressure environment formed by the gastric juice suction cavity is less than a threshold value, the suction control mechanism blocks the bottom of the installation cavity; when the suction force of the negative pressure environment formed by the gastric juice suction cavity is greater than or equal to the threshold value, the suction control mechanism opens the bottom of the installation cavity, and external gas enters the gastric juice suction cavity from the bottom of the installation cavity. The device uses the piston movement principle to pump gastric juice by the liquid pumping mechanism, and when the negative pressure formed by the negative pressure environment of the gastric juice suction cavity is too large, the suction control mechanism can automatically adjust the pressure in the gastric juice suction cavity.

Description

Technical Field

[0001] This invention relates to the field of digestive care equipment technology, and more particularly to a digestive care gastrointestinal decompression device. Background Technology

[0002] In clinical gastrointestinal surgery and postoperative care, gastrointestinal decompression devices are widely used key equipment. Their core function is to effectively remove fluid and gas from the patient's abdominal cavity through negative pressure suction.

[0003] Currently used gastrointestinal decompression devices have a simple structure. They use negative pressure to suction out fluid from the patient's abdominal cavity. However, once the fluid is temporarily removed, the device continues to suction, which over time can damage the abdominal cavity and increase pain. Furthermore, existing devices cannot adaptively adjust the negative pressure; excessively high pressure can lead to overstretching and damage to local tissues, significantly increasing pain and the risk of potential complications. Summary of the Invention

[0004] This invention provides a digestive care gastrointestinal decompression device. Existing technologies have the problem that they cannot adaptively adjust the size of the negative pressure. Excessive negative pressure can easily lead to excessive stretching and damage of local tissues, significantly increasing the patient's pain and the risk of potential complications.

[0005] To address the aforementioned problems, the present invention provides the following technical solution:

[0006] A digestive care gastrointestinal decompression device includes a liquid extraction mechanism, which includes a cylinder with a gastric juice suction cavity inside. The bottom of the cylinder has a first docking channel and a second docking channel communicating with the gastric juice suction cavity. A piston is installed inside the gastric juice suction cavity, and an installation cavity is provided inside the piston. A suction control mechanism for sealing or releasing the bottom of the installation cavity is installed in the installation cavity.

[0007] When the suction force creating the negative pressure environment in the gastric juice suction cavity is less than a threshold, the suction control mechanism seals the bottom of the mounting cavity; when the suction force creating the negative pressure environment in the gastric juice suction cavity is greater than or equal to the threshold, the suction control mechanism releases the bottom of the mounting cavity, allowing external gas to enter the gastric juice suction cavity from the bottom of the mounting cavity. Preferably, the top of the piston body is connected to one end of the piston rod, and the other end of the piston rod extends outward from the end of the cylinder body.

[0008] Preferably, the mounting cavity further includes a first gas flow hole located at the bottom of the piston rod and a figure-eight conical cavity located inside the piston body.

[0009] Preferably, the end of the cylinder has a component through hole, and the piston rod is inserted into the component through hole.

[0010] Preferably, the suction control mechanism includes a threaded sleeve installed at the end of the piston rod, the threaded sleeve being internally threaded to a threaded rod, the lower part of the threaded rod being located within the mounting cavity, the bottom of the threaded rod being rotatably connected to one end of a helical spring assembly, the other end of the helical spring assembly being connected to a conical movable valve, the conical movable valve being able to block or release the bottom of the mounting cavity.

[0011] Preferably, the helical spring assembly includes a helical spring, with its two ends connected to an upper limit plate and a lower limit plate, respectively. The lower limit plate is connected to one end of a longitudinal connecting rod, and the other end of the longitudinal connecting rod is connected to the conical movable valve.

[0012] Preferably, the outer diameter of the upper limit plate is adapted to the inner diameter of the mounting cavity, and a gas flow groove is provided on the outer circumference of the upper limit plate; the outer diameter of the lower limit plate is adapted to the inner diameter of the mounting cavity, and a gas flow groove is provided on the outer circumference of both the upper and lower limit plates; a second gas flow hole is provided on the threaded sleeve.

[0013] Preferably, the digestive care gastrointestinal decompression device further includes a gastric juice buffer mechanism, which includes a housing with a liquid buffer chamber inside. The top and bottom of the housing are provided with a third docking channel and a fourth docking channel communicating with the liquid buffer chamber. An elastic air membrane is installed inside the liquid buffer chamber, and the inner cavity of the elastic air membrane is connected to the third docking channel and the fourth docking channel.

[0014] Preferably, the top of the shell is provided with an insertion interface, which is inserted into the bottom of the cylinder, and the first docking channel is connected to the third docking channel.

[0015] Preferably, a first liquid check valve and a second liquid check valve are installed in the first docking channel and the second docking channel, respectively.

[0016] The above technical solution has at least the following advantages compared with the existing technology:

[0017] The above-described digestive care gastrointestinal decompression device of the present invention extracts gastric juice using a piston-like motion principle through a suction mechanism. This structure is simple, easy to operate, and requires only a mechanical mechanism. When the negative pressure created by the suction cavity of the gastric juice becomes too high, the suction control mechanism, using its own mechanical structure, adaptively adjusts the pressure within the suction cavity, preventing local tissue damage caused by excessive suction, reducing patient pain and the risk of potential complications. The structure is ingenious and requires no electrical equipment. The elastic air membrane of the gastric juice buffer mechanism adaptively adjusts the flow rate of the gastric juice based on its elastic contraction and expansion characteristics. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the digestive care gastrointestinal decompression device of the present invention. Figure 1 ;

[0020] Figure 2 This is a cross-sectional view of the digestive care and gastrointestinal decompression device of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the digestive care gastrointestinal decompression device of the present invention. Figure 2 ;

[0022] Figure 4 This is a cross-sectional view of the fluid extraction mechanism of the digestive care gastrointestinal decompression device of the present invention.

[0023] Figure 5 This is a schematic diagram of the suction control mechanism of the digestive care gastrointestinal decompression device of the present invention. Figure 1 ;

[0024] Figure 6 This is a schematic diagram of the suction control mechanism of the digestive care gastrointestinal decompression device of the present invention. Figure 2 ;

[0025] Figure 7 This is a schematic diagram of the gastric juice buffer mechanism of the digestive care gastrointestinal decompression device of the present invention.

[0026] Figure 8 This is a cross-sectional view of the gastric juice buffer mechanism of the digestive care gastrointestinal decompression device of the present invention.

[0027] The annotations in the attached figures are explained as follows:

[0028] 1. Liquid suction mechanism; 11. Cylinder; 12. Gastric fluid suction cavity; 13. Gastric fluid reserved cavity; 14. Component perforation; 15. Piston body; 16. Figure-eight conical cavity; 17. Gas flow hole No. 1; 18. Mounting cavity; 19. Piston rod; 110. Docking channel No. 1; 111. Docking channel No. 2; 112. Liquid check valve No. 1; 113. Liquid check valve No. 2;

[0029] 2. Suction control mechanism; 21. Threaded sleeve; 22. Internal threaded hole; 23. Threaded rod; 24. Rotating cap; 25. Upper limit plate; 26. Rotating shaft; 27. Lower limit plate; 28. Helical spring; 29. ​​Gas flow groove; 210. Longitudinal connecting rod; 211. Conical movable valve; 212. Second gas flow hole;

[0030] 3. Gastric fluid buffer mechanism; 31. Housing; 32. Liquid buffer chamber; 33. No. 3 docking channel; 34. No. 4 docking channel; 35. Annular embedded groove; 36. Elastic air membrane; 37. Insertion interface. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an,” “a,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising,” “including,” or “including,” and similar terms mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. The terms “connected,” “linked,” or “connected,” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0033] It should be noted that the terms "up", "down", "left", "right", "front", and "back" used in this invention are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0034] Example 1

[0035] like Figures 3-6 As shown, this embodiment provides a gastrointestinal decompression device for digestive care, including a liquid extraction mechanism 1 and a suction control mechanism 2. The liquid extraction mechanism 1 includes a cylinder 11, with a gastric juice suction cavity 12 inside the cylinder 11. The bottom of the cylinder 11 has a first docking channel 110 and a second docking channel 111 connecting the gastric juice suction cavity 12. A piston 15 is installed inside the gastric juice suction cavity 12, and an installation cavity 18 is provided inside the piston 15. The suction control mechanism 2 is installed in the installation cavity 18 to seal or release the bottom of the installation cavity 18. When the suction force of the gastric juice suction cavity 12 to form a negative pressure environment is less than a threshold, the suction control mechanism 2 seals the bottom of the installation cavity 18. When the suction force of the gastric juice suction cavity 12 to form a negative pressure environment is greater than or equal to the threshold, the suction control mechanism 2 releases the bottom of the installation cavity 18, and external gas enters the gastric juice suction cavity 12 from the bottom of the installation cavity 18.

[0036] like Figures 2-4 As shown, in this embodiment, the top of the piston body 15 is connected to one end of the piston rod 19, and the other end of the piston rod 19 extends outward from the end of the cylinder 11. Specifically, the end of the cylinder 11 has a component through hole 14, and the piston rod 19 is inserted into the component through hole 14. The mounting cavity 18 also includes a first gas flow hole 17 located at the bottom of the piston rod 19 and a figure-eight conical cavity 16 located inside the piston body 15.

[0037] In this embodiment, a first liquid check valve 112 and a second liquid check valve 113 are respectively installed in the first docking channel 110 and the second docking channel 111. Specifically, the first liquid check valve 112 is configured to allow gastric juice from the first docking channel 110 to enter the gastric juice suction cavity 12, while gastric juice from the gastric juice suction cavity 12 cannot enter the first docking channel 110; the second liquid check valve 113 is configured to allow gastric juice from the gastric juice suction cavity 12 to enter the second docking channel 111, while gastric juice from the second docking channel 111 cannot enter the gastric juice suction cavity 12.

[0038] like Figure 2 , Figure 5 and Figure 6As shown, the suction control mechanism 2 includes a threaded sleeve 21 installed at the end of the piston rod 19, with a threaded rod 23 internally threadedly connected to the threaded sleeve 21. Specifically, the threaded sleeve 21 has an internal threaded hole 22, and the threaded rod 23 is threadedly connected to the internal threaded hole 22. The lower part of the threaded rod 23 is located in the mounting cavity 18, and the bottom of the threaded rod 23 is rotatably connected to one end of the helical spring 28 assembly. The other end of the helical spring 28 assembly is connected to a conical movable valve 211, which can block or release the bottom of the mounting cavity 18. Further, the helical spring 28 assembly includes a helical spring 28, with both ends of the helical spring 28 connected to an upper limit plate 25 and a lower limit plate 27, respectively. The lower limit plate 27 is connected to one end of a longitudinal connecting rod 210, and the other end of the longitudinal connecting rod 210 is connected to the conical movable valve 211. Specifically, the outer diameter of the upper limit plate 25 is adapted to the inner diameter of the mounting cavity 18, and a gas flow groove 29 is provided on the outer circumference of the upper limit plate 25; the outer diameter of the lower limit plate 27 is adapted to the inner diameter of the mounting cavity 18, and a gas flow groove 29 is provided on the outer circumference of the upper limit plate 25 and the lower limit plate 27; a second gas flow hole 212 is provided on the threaded sleeve 21.

[0039] In this embodiment, the bottom of the threaded rod 23 is provided with a rotating shaft 26, which is connected to the upper limit plate 25 via a bearing. Specifically, the top of the upper limit plate 25 has a bearing mounting groove, in which the outer ring of the bearing is installed, and the rotating shaft 26 is installed in the inner ring of the bearing. More specifically, the end of the threaded rod 23 is provided with a rotating cap 24. By turning the rotating cap 24, the threaded rod 23 moves up and down while rotating. The up and down movement of the threaded rod 23 drives the upper limit plate 25 to move up and down, thereby adjusting the position of the lower limit plate 27. This causes the lower limit plate 27 and the conical movable valve 211 to move up and down, and the conical movable valve 211 to block the figure-eight conical cavity 16.

[0040] In this embodiment, the suction control mechanism 2, when the negative pressure formed by the negative pressure environment of the gastric juice suction cavity 12 is too large, the force of the negative pressure overcomes the elastic force of the coil spring 28, causing the conical movable valve 211 to move downward. A gap is created between the conical movable valve 211 and the figure-eight conical cavity 16, allowing external gas to enter the gastric juice suction cavity 12 through the second gas flow hole 212, the mounting cavity 18, the gas flow groove 29, and the gap between the conical movable valve 211 and the figure-eight conical cavity 16, thus reducing the negative pressure formed by the negative pressure environment of the gastric juice suction cavity 12. This embodiment, through the suction control mechanism 2, a purely mechanical mechanism, dynamically adjusts the negative pressure formed by the negative pressure environment of the gastric juice suction cavity 12 to avoid the problem of excessive negative pressure.

[0041] The device operation process in this embodiment is as follows:

[0042] The first docking channel 110 connects to the suction tube for the patient's gastric fluid, and the second docking channel 111 connects to the collection bottle. Pulling the piston rod 19 upwards causes the piston body 15 to move upwards within the gastric fluid suction cavity 12, increasing the space within the cavity and decreasing the pressure. The gastric fluid then enters the gastric fluid reserved cavity 13 via the first docking channel 110 and the first liquid check valve 112. Pressing the piston rod 19 downwards causes the piston body 15 to move downwards within the gastric fluid suction cavity 12, forcing the gastric fluid into the collection bottle via the second docking channel 111 and the second liquid check valve 113.

[0043] When the negative pressure created by the negative pressure environment of the gastric juice aspiration cavity 12 is too large, the suction control mechanism 2 adaptively adjusts the pressure of the gastric juice aspiration cavity 12.

[0044] Example 2

[0045] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, based on Embodiment 1, this embodiment provides a gastrointestinal decompression device for digestive care. The device also includes a gastric juice buffer mechanism 3, which includes a housing 31. The housing 31 has a liquid buffer chamber 32. The top and bottom of the housing 31 have a third docking channel 33 and a fourth docking channel 34 communicating with the liquid buffer chamber 32. An elastic air membrane 36 is installed in the liquid buffer chamber 32, and the inner cavity of the elastic air membrane 36 communicates with the third docking channel 33 and the fourth docking channel 34. Specifically, the top of the housing 31 has an insertion interface 37, which is inserted into the bottom of the cylinder 11. The first docking channel 110 communicates with the third docking channel 33. More specifically, the liquid buffer chamber 32 has an annular embedding groove 35, and the elastic air membrane 36 is embedded in the annular embedding groove 35.

[0046] In this embodiment, the device draws gastric fluid into the suction mechanism 1 through a negative pressure environment created within the suction mechanism 1, via the fourth docking channel 34, the inner cavity of the elastic air membrane 36, and the third docking channel 33. During this process, if the suction force generated by the negative pressure environment is too strong, the elastic air membrane 36 contracts according to its elasticity, reducing the inner cavity of the elastic air membrane 36 and decreasing the flow rate of the gastric fluid, making the extraction of gastric fluid from the stomach more gentle. Conversely, if the suction force generated by the negative pressure environment is too weak, the elastic air membrane 36 expands according to its elasticity, increasing the inner cavity of the elastic air membrane 36 and increasing the flow rate of the gastric fluid, making the extraction of gastric fluid from the stomach more intense. This embodiment's device, through the gastric fluid buffer mechanism 3, dynamically adjusts the flow rate of the gastric fluid when the suction force generated by the negative pressure environment is too strong or too weak, alleviating the discomfort caused to the patient's stomach by excessively rapid gastric fluid extraction.

[0047] The device operation process in this embodiment is as follows:

[0048] The fourth docking channel 34 connects to the suction tube for the patient's gastric fluid, the third docking channel 33 connects to the first docking channel 110, and the second docking channel 111 connects to the collection bottle. Pulling the piston rod 19 upwards causes the piston body 15 to move upwards within the gastric fluid suction cavity 12, increasing the space within the cavity and decreasing the pressure. The gastric fluid then flows through the fourth docking channel 34, the inner cavity of the elastic air membrane 36, the third docking channel 33, the first docking channel 110, and the first liquid check valve 112 into the gastric fluid reserved cavity 13. Pressing the piston rod 19 downwards causes the piston body 15 to move downwards within the gastric fluid suction cavity 12, forcing the gastric fluid into the collection bottle through the second docking channel 111 and the second liquid check valve 113.

[0049] When the negative pressure created by the negative pressure environment of the gastric juice aspiration cavity 12 is too large, the suction control mechanism 2 adaptively adjusts the pressure of the gastric juice aspiration cavity 12. When the suction generated by the negative pressure environment is too large, the elastic air film 36 of the gastric juice buffer mechanism 3 adaptively adjusts the flow rate of the gastric juice according to its own elastic contraction and expansion characteristics.

[0050] The gastrointestinal decompression device for digestive care of the present invention uses a suction mechanism 1 to extract gastric juice through a piston motion principle. This structure is simple and easy to operate, requiring only a mechanical mechanism. When the negative pressure environment in the suction cavity 12 becomes too high, the suction control mechanism 2, using its own mechanical structure, adaptively adjusts the pressure within the suction cavity 12, preventing local tissue damage caused by excessive suction, reducing patient pain and the risk of potential complications. The structure is ingenious and requires no electrical equipment. The elastic air membrane 36 of the gastric juice buffer mechanism 3 adaptively adjusts the flow rate of gastric juice based on its elastic contraction and expansion characteristics.

[0051] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A digestive care gastrointestinal decompression device, comprising: The device comprises a suction mechanism, which comprises a cylinder body, an internal part of the cylinder body is provided with a gastric juice suction cavity, a bottom of the cylinder body is provided with a first docking channel and a second docking channel, which are communicated with the gastric juice suction cavity, a piston body is installed in the gastric juice suction cavity, an internal part of the piston body is provided with an installation cavity, and a suction control mechanism is installed in the installation cavity, which can block or open the bottom of the installation cavity. When the suction force of the negative pressure environment formed by the gastric juice suction cavity is less than a threshold value, the suction control mechanism blocks the bottom of the installation cavity; when the suction force of the negative pressure environment formed by the gastric juice suction cavity is greater than or equal to the threshold value, the suction control mechanism opens the bottom of the installation cavity, and external gas enters the gastric juice suction cavity from the bottom of the installation cavity. An end of the piston rod is connected to a top of the piston body, and the other end of the piston rod extends out of an end of the cylinder body. The suction control mechanism comprises a threaded sleeve installed at an end of the piston rod, a threaded rod is threadedly connected in the threaded sleeve, a lower part of the threaded rod is located in the installation cavity, a bottom of the threaded rod is rotationally connected to one end of a helical spring assembly, the other end of the helical spring assembly is connected to a conical movable valve, and the conical movable valve can block or open the bottom of the installation cavity. The helical spring assembly comprises a helical spring, two ends of the helical spring are respectively connected to an upper limiting disc and a lower limiting disc, the lower limiting disc is connected to one end of a longitudinal connecting rod, and the other end of the longitudinal connecting rod is connected to the conical movable valve. An outer diameter of the upper limiting disc is matched with an inner diameter of the installation cavity, and a circumferential outer side of the upper limiting disc is provided with a gas flow groove; an outer diameter of the lower limiting disc is matched with the inner diameter of the installation cavity, and circumferential outer sides of the upper limiting disc and the lower limiting disc are provided with gas flow grooves; and a second gas flow hole is arranged on the threaded sleeve.

2. The digestive care gastrointestinal decompression device of claim 1, wherein, The installation cavity further comprises a first gas flow hole located at a bottom of the piston rod and an eight-shaped conical cavity located in an internal part of the piston body.

3. The digestive care gastrointestinal decompression device of claim 1, wherein, An end of the cylinder body is provided with a component through hole, and the piston rod is inserted into the component through hole.

4. The digestive care gastrointestinal decompression device of claim 1, wherein, The device further comprises a gastric juice buffering mechanism, which comprises a shell, a liquid buffering cavity is arranged in the shell, a top and a bottom of the shell are provided with a third docking channel and a fourth docking channel, which are communicated with the liquid buffering cavity, and an elastic air film is installed in the liquid buffering cavity, and an internal cavity of the elastic air film is communicated with the third docking channel and the fourth docking channel.

5. The digestive care gastrointestinal decompression device of claim 4, wherein, A plug-in port is arranged at the top of the shell, the plug-in port is plugged into the bottom of the cylinder body, and the first docking channel is communicated with the third docking channel.

6. The digestive care gastrointestinal decompression device of claim 1, wherein, A first liquid check valve and a second liquid check valve are respectively installed in the first docking channel and the second docking channel.

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