Gastrointestinal decompression equipment for digestive nursing

Abstract

The invention provides gastrointestinal decompression equipment for digestive nursing, and relates to the technical field of digestive nursing equipment. Comprising a liquid extraction mechanism, a gastric juice suction cavity is formed in a barrel of the liquid extraction mechanism, a first butt joint channel and a second butt joint channel which are communicated with the gastric juice suction cavity are formed in the bottom of the barrel, a piston body is installed in the gastric juice suction cavity, and an installation cavity is formed in the piston body; a suction control mechanism for blocking or releasing the bottom of the mounting cavity is mounted in the mounting cavity; the suction force for forming the negative pressure environment of the gastric juice suction cavity is smaller than a threshold value, and the suction force control mechanism blocks the bottom of the mounting cavity; when the suction force of the gastric juice suction cavity for forming the negative pressure environment is larger than or equal to the threshold value, the suction force control mechanism loosens the bottom of the mounting cavity, and external air enters the gastric juice suction cavity from the bottom of the mounting cavity. According to the device, gastric juice is extracted through the juice extraction mechanism according to the piston motion principle, and when the negative pressure formed by the negative pressure environment of the gastric juice suction cavity is too large, the suction force control mechanism adjusts the pressure intensity in the gastric juice suction cavity in a self-adaptive mode.

Description

Technical Field

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

[0002] In clinical gastrointestinal surgery and postoperative care, the gastrointestinal decompression device is a widely used key device. Its core function is to effectively remove the fluid and gas in the patient's abdominal cavity through negative pressure suction.

[0003] Currently, commonly used gastrointestinal decompression devices have a simple structure. They use negative pressure suction to remove fluid from the patient's abdominal cavity. Once the fluid is temporarily removed, the negative pressure suction function of the gastrointestinal decompression device continues to suction the patient's abdominal cavity. Over time, this negative pressure suction damages the patient's abdominal cavity and increases the pain of treatment. Existing gastrointestinal decompression devices cannot adaptively adjust the negative pressure. Sustained excessive negative pressure can easily lead to excessive stretching and damage of local tissues, significantly increasing the patient's pain and potential risk of complications. Summary of the Invention

[0004] The present invention provides a digestion care and gastrointestinal decompression device. The existing technology has the problem of being unable to adaptively adjust the size of the negative pressure. Continuous excessive negative pressure can easily lead to excessive traction and damage of local tissues, significantly increasing the patient's pain and potential risk of complications.

[0005] In order to solve the above-mentioned invention problems, the technical solutions provided by the present invention are as follows: A digestive care and gastrointestinal decompression device includes a liquid extraction mechanism, the liquid extraction mechanism including a cylinder, a gastric fluid suction cavity defined within the cylinder, a first docking channel and a second docking channel connected to the gastric fluid suction cavity defined at the bottom of the cylinder, a piston installed within the gastric fluid suction cavity, an installation cavity defined within the piston, and a suction control mechanism installed within the installation cavity for blocking or releasing the bottom of the installation cavity; When the suction force forming the negative pressure environment of the gastric fluid absorption cavity is less than a threshold value, the suction control mechanism blocks the bottom of the installation cavity; when the suction force forming the negative pressure environment of the gastric fluid absorption cavity is greater than or equal to the threshold value, the suction control mechanism releases the bottom of the installation cavity, allowing external air to enter the gastric fluid absorption cavity from the bottom of the installation cavity. Preferably, the top of the piston body is connected to one end of a piston rod, and the other end of the piston rod extends outward from the end of the cylindrical body.

[0006] Preferably, the installation cavity further includes a No. 1 gas flow hole located at the bottom of the piston rod and an eight-shaped conical cavity located inside the piston body.

[0007] Preferably, a component through-hole is formed at the end of the cylinder, and the piston rod is inserted into the component through-hole.

[0008] Preferably, the suction control mechanism includes a threaded sleeve installed at the end of the piston rod, the threaded sleeve is threadedly connected to a threaded rod, the lower part of the threaded rod is located in the installation cavity, the bottom of the screw rod is rotatably connected to one end of a coil spring assembly, and the other end of the coil spring assembly is connected to a conical movable valve, and the conical movable valve is able to block or release the bottom of the installation cavity.

[0009] Preferably, the coil spring assembly includes a coil spring, both ends of which are respectively connected to an upper limit plate and a lower limit plate, 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.

[0010] 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 the upper limit plate and the lower limit plate; a No. 2 gas flow hole is provided on the threaded sleeve.

[0011] Preferably, the digestion care and gastrointestinal decompression equipment also includes a gastric juice cache mechanism, which includes a shell, a liquid cache cavity is provided in the shell, and the top and bottom of the shell are provided with a No. 3 docking channel and a No. 4 docking channel connected to the liquid cache cavity. An elastic air membrane is installed in the liquid cache cavity, and the inner cavity of the elastic air membrane is connected to the No. 3 docking channel and the No. 4 docking channel.

[0012] Preferably, a plug interface is provided on the top of the shell, the plug interface is plugged into the bottom of the cylinder, and the No. 1 docking channel is connected to the No. 3 docking channel.

[0013] Preferably, a No. 1 liquid one-way valve and a No. 2 liquid one-way valve are installed in the No. 1 docking channel and the No. 2 docking channel respectively.

[0014] Compared with the prior art, the above technical solution has at least the following beneficial effects: The above scheme, the digestive care gastrointestinal decompression equipment of the present invention, extracts gastric juice through the liquid extraction mechanism using the piston motion principle. The structure is simple, easy to operate, and can be completed only with a mechanical mechanism. When the negative pressure formed by the negative pressure environment of the gastric fluid suction cavity is too large, the suction control mechanism uses its own mechanical structure to achieve adaptive adjustment of the pressure of the gastric fluid suction cavity, avoiding local tissue damage caused by excessive suction, reducing the patient's pain and potential complications. The structure is ingenious and does not require electrical equipment. The elastic air membrane of the gastric fluid buffer mechanism adaptively adjusts the flow rate of the gastric fluid according to its own elastic contraction and expansion characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the structure of the digestive care gastrointestinal decompression device of the present invention. Figure 1 ; Figure 2 A cutaway view of the digestive care and gastrointestinal decompression device of the present invention; Figure 3 This is a schematic diagram of the structure of the digestive care gastrointestinal decompression device of the present invention. Figure 2 ; Figure 4 A cutaway view of the liquid extraction mechanism of the digestive care and gastrointestinal decompression device of the present invention; Figure 5 This is a schematic diagram of the structure of the suction control mechanism of the digestive care gastrointestinal decompression device of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the structure of the suction control mechanism of the digestive care gastrointestinal decompression device of the present invention. Figure 2 ; Figure 7 This is a schematic structural diagram of the gastric juice buffer mechanism of the digestive care and gastrointestinal decompression device of the present invention; Figure 8 This is a cutaway view of the gastric juice buffer mechanism of the digestive care and gastrointestinal decompression device of the present invention.

[0017] The accompanying drawings are described as follows: 1. Liquid extraction mechanism; 11. Cylinder; 12. Gastric fluid suction cavity; 13. Gastric fluid reserve cavity; 14. Component perforation; 15. Piston body; 16. Figure-eight tapered 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. 2. Suction control mechanism; 21. Threaded sleeve; 22. Internally threaded hole; 23. Threaded rod; 24. Rotating cap; 25. Upper limit plate; 26. Rotating shaft; 27. Lower limit plate; 28. Coil spring; 29. ​​Gas flow groove; 210. Longitudinal connecting rod; 211. Conical movable valve; 212. Gas flow hole No. 2; 3. Gastric juice buffer mechanism; 31. Shell; 32. Liquid buffer chamber; 33. Docking channel No. 3; 34. Docking channel No. 4; 35. Annular embedding groove; 36. Elastic air membrane; 37. Plug interface. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meaning understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one", "an" or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0020] It should be noted that the terms "up", "down", "left", "right", "front" and "back" used in the present invention are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0021] Example 1

[0022] 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, a gastric fluid suction cavity 12 is opened inside the cylinder 11, and a docking channel No. 110 and a docking channel No. 2 111 connected to the gastric fluid suction cavity 12 are provided at the bottom of the cylinder 11. A piston body 15 is installed in the gastric fluid suction cavity 12, and an installation cavity 18 is provided inside the piston body 15. A suction control mechanism 2 is installed in the installation cavity 18 for blocking or releasing the bottom of the installation cavity 18; the suction force for forming a negative pressure environment in the gastric fluid suction cavity 12 is less than a threshold value, and the suction control mechanism 2 blocks the bottom of the installation cavity 18; the suction force for forming a negative pressure environment in the gastric fluid suction cavity 12 is greater than or equal to the threshold value, the suction control mechanism 2 releases the bottom of the installation cavity 18, and external gas enters the gastric fluid suction cavity 12 from the bottom of the installation cavity 18.

[0023] like Figures 2-4As shown, the top of the piston body 15 in this embodiment is connected to one end of a piston rod 19, the other end of which extends outward from the end of the cylinder body 11. Specifically, a component through-hole 14 is formed at the end of the cylinder body 11, into which the piston rod 19 is inserted. The mounting cavity 18 also includes a gas flow hole 17 at the bottom of the piston rod 19 and an eight-shaped tapered cavity 16 within the piston body 15.

[0024] In this embodiment, a first liquid one-way valve 112 and a second liquid one-way valve 113 are installed in the first docking channel 110 and the second docking channel 111, respectively. Specifically, the arrangement of the first liquid one-way valve 112 allows gastric juice in the first docking channel 110 to enter the gastric juice inhalation cavity 12, while gastric juice in the gastric juice inhalation cavity 12 cannot enter the first docking channel 110; the arrangement of the second liquid one-way valve 113 allows gastric juice in the gastric juice inhalation cavity 12 to enter the second docking channel 111, while gastric juice in the second docking channel 111 cannot enter the gastric juice inhalation cavity 12.

[0025] like Figure 2 、 Figure 5 and Figure 6 As shown, the suction control mechanism 2 includes a threaded sleeve 21 mounted at the end of the piston rod 19. The threaded sleeve 21 is internally threadedly connected to a threaded rod 23. Specifically, an internally threaded hole 22 is defined within the threaded sleeve 21, and the threaded rod 23 is threadedly connected to the internally threaded hole 22. The lower portion of the threaded rod 23 is located within the mounting cavity 18. The bottom of the threaded rod 23 is rotatably connected to one end of a coil spring 28 assembly. The other end of the coil spring 28 assembly is connected to a conical movable valve 211, which is capable of blocking or releasing the bottom of the mounting cavity 18. Furthermore, the coil spring 28 assembly includes a coil spring 28, the ends of which are respectively connected to an upper limit plate 25 and a lower limit plate 27. 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 No. 2 gas flow hole 212 is provided on the threaded sleeve 21.

[0026] In this embodiment, a rotating shaft 26 is provided at the bottom of the threaded rod 23. This shaft 26 is connected to the upper limit plate 25 via a bearing. Specifically, the upper limit plate 25 has a bearing mounting slot at the top, into which the outer ring of the bearing is mounted, and the rotating shaft 26 is mounted within the inner ring of the bearing. More specifically, a rotating cap 24 is provided at the end of the threaded rod 23. Twisting the rotating cap 24 causes the threaded rod 23 to move up and down while rotating. This upward and downward movement of the threaded rod 23 drives the upper limit plate 25 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, sealing the figure-eight tapered cavity 16.

[0027] In the suction control mechanism 2 of this embodiment, when the negative pressure generated by the negative pressure environment of the gastric fluid suction cavity 12 is too great, the force generated by the negative pressure overcomes the elastic force of the coil spring 28, causing the conical movable valve 211 to move downward, creating a gap between the conical movable valve 211 and the figure-eight conical cavity 16. External gas enters the gastric fluid 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, thereby reducing the negative pressure generated by the negative pressure environment of the gastric fluid suction cavity 12. The suction control mechanism 2 of this embodiment, a purely mechanical mechanism, dynamically adjusts the negative pressure generated by the negative pressure environment of the gastric fluid suction cavity 12 to avoid the problem of excessive negative pressure generated by the negative pressure environment of the gastric fluid suction cavity 12.

[0028] The working process of the device in this embodiment is as follows: Docking channel No. 110 connects to the patient's gastric fluid suction tube, and docking channel No. 211 connects to the collection bottle. Pulling piston rod 19 upward causes piston body 15 to move upward within gastric fluid suction cavity 12, increasing the space within gastric fluid suction cavity 12 and reducing the pressure within gastric fluid suction cavity 12. Gastric fluid then flows through docking channel No. 110 and liquid one-way valve No. 112 into gastric fluid reserve cavity 13. Pressing piston rod 19 downward causes piston body 15 to move downward within gastric fluid suction cavity 12, forcing gastric fluid through docking channel No. 211 and liquid one-way valve No. 213 into the collection bottle.

[0029] When the negative pressure environment of the gastric fluid suction cavity 12 is too large, the suction control mechanism 2 adaptively adjusts the pressure of the gastric fluid suction cavity 12 .

[0030] Example 2

[0031] like Figure 1 、 Figure 2 、 Figure 7 and Figure 8As shown, based on the first embodiment, 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. A liquid buffer chamber 32 is provided in the housing 31. The top and bottom of the housing 31 are provided with a third docking channel 33 and a fourth docking channel 34 that communicate 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 is connected to the third docking channel 33 and the fourth docking channel 34. Specifically, a plug-in port 37 is provided at the top of the housing 31, and the plug-in port 37 is plugged into the bottom of the cylinder 11, so that the first docking channel 110 is connected to the third docking channel 33. More specifically, an annular embedding groove 35 is provided in the liquid buffer chamber 32, and the elastic air membrane 36 is embedded and installed in the annular embedding groove 35.

[0032] When the device of this embodiment extracts gastric fluid, the negative pressure environment created in the extraction mechanism 1 draws gastric fluid into the extraction mechanism 1 through the fourth docking channel 34, the inner cavity of the elastic air membrane 36, and the third docking channel 33. During this process, when the suction force generated by the negative pressure environment is too strong, the elastic air membrane 36 contracts due to its own elastic characteristics, the inner cavity channel of the elastic air membrane 36 becomes smaller, and the flow rate of gastric fluid decreases, making the extraction process of gastric fluid from the stomach more relaxed. When the suction force generated by the negative pressure environment is too weak, the elastic air membrane 36 expands due to its own elastic characteristics, the inner cavity channel of the elastic air membrane 36 becomes larger, and the flow rate of gastric fluid increases, making the extraction process of gastric fluid from the stomach more severe. The device of this embodiment dynamically adjusts the flow rate of gastric fluid through the gastric fluid buffer mechanism 3 when the suction force generated by the negative pressure environment is too strong or too weak, thereby alleviating the patient's stomach discomfort caused by excessive gastric fluid extraction.

[0033] The working process of the device in this embodiment is as follows: Docking channel No. 4 34 is connected to the patient's gastric fluid suction tube, docking channel No. 3 33 is connected to docking channel No. 1 110, and docking channel No. 2 111 is connected to the collection bottle. Pulling piston rod 19 upward causes piston body 15 to move upward within gastric fluid suction cavity 12, increasing the space within gastric fluid suction cavity 12 and reducing the pressure within gastric fluid suction cavity 12. Gastric fluid enters gastric fluid reserved cavity 13 via docking channel No. 4 34, the inner cavity of elastic air membrane 36, docking channel No. 3 33, docking channel No. 1 110, and liquid one-way valve No. 1 112. Pressing piston rod 19 downward causes piston body 15 to move downward within gastric fluid suction cavity 12, forcing gastric fluid into the collection bottle via docking channel No. 2 111 and liquid one-way valve No. 2 113.

[0034] When the negative pressure generated by the negative pressure environment of the gastric fluid inhalation cavity 12 is too large, the suction control mechanism 2 adaptively adjusts the pressure of the gastric fluid inhalation cavity 12. When the suction force generated by the negative pressure environment is too large, the elastic air membrane 36 of the gastric fluid buffer mechanism 3 adaptively adjusts the flow rate of the gastric fluid based on its own elastic contraction and expansion characteristics.

[0035] The digestive care and gastrointestinal decompression device of the present invention extracts gastric juice using the piston motion principle through the liquid extraction mechanism 1. This structure is simple, easy to operate, and can be completed only by a mechanical mechanism. When the negative pressure formed by the negative pressure environment of the gastric juice suction cavity 12 is too large, the suction control mechanism 2 uses its own mechanical structure to achieve adaptive adjustment of the pressure in the gastric juice suction cavity 12, avoiding local tissue damage caused by excessive suction, reducing the patient's pain and potential complications. The structure is ingenious and does not require electrical equipment. The elastic air membrane 36 of the gastric juice buffer mechanism 3 adaptively adjusts the flow rate of the gastric juice based on its own elastic contraction and expansion characteristics.

[0036] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. The protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A digestion care gastrointestinal decompression device, characterized in that: The liquid pumping mechanism includes a cylinder, a gastric fluid suction cavity is defined in the cylinder, a first docking channel and a second docking channel are defined at the bottom of the cylinder, the gastric fluid suction cavity is connected to the gastric fluid suction cavity, a piston is installed in the gastric fluid suction cavity, a mounting cavity is defined in the piston, and a suction control mechanism is installed in the mounting cavity to block or release the bottom of the mounting cavity; When the suction force of the gastric fluid suction cavity to form a negative pressure environment is less than a threshold value, the suction control mechanism blocks the bottom of the installation cavity; when the suction force of the gastric fluid suction cavity to form a negative pressure environment is greater than or equal to a threshold value, the suction control mechanism releases the bottom of the installation cavity, and external gas enters the gastric fluid suction cavity from the bottom of the installation cavity.

2. The digestion care gastrointestinal decompression device according to claim 1, characterized in that: The top of the piston body is connected to one end of a piston rod, and the other end of the piston rod extends outward from the end of the cylinder body.

3. The digestion care gastrointestinal decompression device according to claim 2, characterized in that: The installation cavity further comprises a No. 1 gas flow hole located at the bottom of the piston rod and an eight-shaped tapered cavity located inside the piston body.

4. The digestion care gastrointestinal decompression device according to claim 2, characterized in that: A component through hole is formed at the end of the cylinder, and the piston rod is inserted into the component through hole.

5. The digestion care gastrointestinal decompression device according to claim 2, characterized in that: The suction control mechanism includes a threaded sleeve installed at the end of the piston rod, the internal thread of the threaded sleeve is connected to the threaded rod, the lower part of the threaded rod is located in the installation cavity, the bottom of the screw rod is rotatably connected to one end of the coil spring assembly, and the other end of the coil spring assembly is connected to a conical movable valve, and the conical movable valve is able to block or release the bottom of the installation cavity.

6. The digestion care gastrointestinal decompression device according to claim 5, characterized in that: The coil spring assembly includes a coil spring, two ends of which are respectively connected to an upper limit plate and a lower limit plate, 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.

7. The digestion care gastrointestinal decompression device according to claim 6, characterized in that: The outer diameter of the upper limit plate is adapted to the inner diameter of the mounting cavity, and a gas flow passage 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 the upper limit plate and the lower limit plate; the threaded sleeve is provided with a No. 2 gas flow hole.

8. The digestion care gastrointestinal decompression device according to claim 6, characterized in that: The digestion care and gastrointestinal decompression equipment also includes a gastric juice cache mechanism, which includes a shell, a liquid cache cavity is provided in the shell, and a docking channel No. 3 and a docking channel No. 4 are provided on the top and bottom of the shell and are connected to the liquid cache cavity. An elastic air membrane is installed in the liquid cache cavity, and the inner cavity of the elastic air membrane is connected to the docking channel No. 3 and the docking channel No.

4.

9. The digestion care gastrointestinal decompression device according to claim 8, characterized in that: The top of the shell is provided with an inserting interface, the inserting interface is inserted into the bottom of the cylinder, and the No. 1 docking channel is connected to the No. 3 docking channel.

10. The digestion care gastrointestinal decompression device according to claim 1, characterized in that: A No. 1 liquid one-way valve and a No. 2 liquid one-way valve are installed in the No. 1 docking channel and the No. 2 docking channel respectively.

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