Gas guide and exhaust device, guide and exhaust assembly and use method of negative pressure generation unit of gas guide and exhaust assembly

Abstract

The invention discloses a gas guide and exhaust device, a guide and exhaust assembly and a negative pressure generation unit using method, and relates to the technical field of medicines.The gas guide and exhaust device comprises the guide and exhaust assembly and the negative pressure generation unit, the negative pressure generation unit is provided with a containing cavity, one end of the guide and exhaust assembly communicates with the containing cavity, and the negative pressure generation unit changes the volume of the containing cavity to generate negative pressure. And negative pressure is formed between the accommodating cavity communicated with the discharge guide assembly and the position of the to-be-discharged gas medium of the human body. The air pressure in the containing cavity is reduced by changing the volume of the containing cavity in the negative pressure generating unit, negative pressure is formed between the containing cavity and the intestinal tract, and the better air guiding and exhausting effect is achieved.

Description

Technical Field

[0001] The present invention relates to the field of medical technology, and in particular to a gas exhaust device, an exhaust assembly and a method for using a negative pressure generating unit thereof. Background Art

[0002] The intestinal function of infants and young children is not fully developed, and the ability to digest food is weak. Abdominal distension is a common symptom of neonatal diseases. Using an anal tube to assist in exhaust is a treatment method to relieve abdominal distension and is often used to treat intestinal gas accumulation. The principle of anal tube exhaust is relatively simple. The accumulation of gas in the intestine will cause the internal pressure to increase. The intestine is connected to the outside through the anal tube, and the internal accumulated gas is discharged by the pressure difference between the inside and the outside. In clinical practice, the situation is more complicated. For example, the anus of newborns is small, the skin and mucous membranes are delicate, and tissue damage is easily caused during the intubation process. Usually, an anal tube with a smaller size and made of softer materials is selected. Due to the compression of the anal canal by the tissue, the unexhausted excrement entering the anal canal, and the pressure difference between the inside and the outside may be small, the final auxiliary exhaust result will be affected. Clinical studies have shown that an anal tube with negative pressure can achieve better results. For example, a Chinese invention patent with a publication number of CN119386291A discloses a device for assisting exhaust by negative pressure. The disadvantage is that the existing negative pressure anal tube exhaust device is not very convenient during storage and use. Summary of the invention

[0003] In view of the above shortcomings, the object of the present invention is to provide a gas exhaust device that is easy to use and store. By setting a exhaust guide component and a negative pressure generating unit and connecting the two, the exhaust guide component is connected to the human intestine, and the discharge of the gas medium in the intestine is assisted by changing the volume of the cavity in the negative pressure generating unit. The present invention also aims to provide a exhaust guide component for the above-mentioned gas exhaust device, and the present invention also aims to provide a method for using the negative pressure generating unit.

[0004] To this end, a gas exhaust device of the present invention includes a exhaust assembly and a negative pressure generating unit. The negative pressure generating unit is provided with a cavity. One end of the exhaust assembly is connected to the cavity. The negative pressure generating unit forms a negative pressure between the cavity connected to the exhaust assembly and the position of the gas medium to be discharged from the human body by changing the volume of the cavity.

[0005] Furthermore, the negative pressure generating unit includes a membrane-like shell, elastic ribs bent in a direction away from the membrane-like shell, and a limiting member for limiting the bending of the elastic ribs. The membrane-like shell includes a first surface and a second surface. The limiting member can limit the bending of the elastic ribs so that the membrane-like shell is not stretched. After the limitation of the limiting member is released, the elastic ribs can bend and act on the first surface and the second surface of the membrane-like shell, so that the volume of the cavity between the first surface and the second surface changes.

[0006] Furthermore, the elastic ribs are fixed in the middle of the first and second surfaces, and the elastic ribs form a slide rail. The limiting member includes a clamping arm respectively used to cooperate with the elastic ribs of the first surface or the second surface, and the clamping arm is provided with a clamping slot for clamping on the slide rail. The limiting member can move along the slide rail so that the elastic ribs bend and drive the first surface and the second surface to separate.

[0007] Furthermore, the edges of the first surface and the second surface are sealed and fixed, and a conduit connecting the cavity is provided between the first surface and the second surface, the conduit extends to the outside of the membrane-like shell and is fixedly connected to the interface, and the interface is suitable for connecting to one end of the guide assembly.

[0008] Furthermore, it comprises two negative pressure generating units, wherein the cavity of one negative pressure generating unit is communicated with the cavity of the other negative pressure generating unit.

[0009] The guide rail formed by the elastic ribs is arranged longitudinally, and the end thereof extends to the top of the catheter. The end of the elastic ribs includes an arc segment that fits the catheter and a closing segment for closing the catheter. When the limiting member moves to the arc segment, the catheter is not closed, and when the limiting member moves to the closing segment, the closing segment is squeezed to deform in a direction close to the membrane-like shell and press the catheter to close it.

[0010] Furthermore, two opposite ends of the negative pressure generating unit are respectively provided with a conduit and an interface, two ends of the elastic rib respectively extend above the corresponding conduit and form corresponding arc segments and closed segments, and two limit members are provided on the elastic rib.

[0011] Furthermore, it also includes a sealing bag, in which liquid is arranged, and one of the interfaces of the negative pressure generating unit is connected to the sealing bag through a pipeline.

[0012] The present invention also includes a guide assembly for the above-mentioned gas guide device, including a silicone hose, the silicone hose is provided with a scale, and one end or both ends of the silicone hose are provided with a side hole.

[0013] The present invention also includes a method for using the negative pressure generating unit of the above-mentioned gas guiding and exhausting device, comprising the following steps: S1: Move the lower end limiter to the closed section at the lower end, move the upper end limiter to the arc section at the upper end, and exhaust air into the cavity; S2: When a certain amount of gas is discharged into the bag, the upper limiter is moved to the closed section; S3: Move the lower end stopper toward the middle of the negative pressure generating unit, and the elastic ribs squeeze the cavity under the action of the lower end stopper, and the gas enters the liquid in the sealing bag for absorption after the volume is reduced; S4: moving the upper end limiter to the middle of the negative pressure generating unit to restore the negative pressure generating unit; S5: Cycle steps S1 to S4 to exhaust.

[0014] The beneficial technical effects of the present invention are: A gas exhaust device and exhaust assembly of the present invention comprises an exhaust assembly (a silicone hose, i.e., an anal canal, is used in the specific implementation) and a negative pressure generating unit. The negative pressure generating unit is provided with a cavity. One end of the exhaust assembly is connected to the cavity of the negative pressure generating unit, and the other end is used to be placed in the human intestine. By changing the volume of the cavity, the air pressure in the cavity is reduced, and negative pressure is formed between the cavity and the intestine, thereby having a better exhaust gas exhaust effect.

[0015] In a specific embodiment of the present invention, the negative pressure generating unit is a bag body, and an interface for connecting to the anal canal is arranged on the bag body, and the interface is connected to the containing cavity. Elastic ribs bent away from the bag body are arranged on the bag body. When not in use (natural state), the elastic ribs are kept in a straight state by a limiter. When in use, the elastic ribs are completely deformed by moving or removing the limiter, thereby expanding the bag body and reducing the air pressure in the containing cavity inside the bag body.

[0016] In some other specific embodiments of the present invention, an interface and a catheter are respectively provided at both ends of the bag body, and the end of the elastic rib extends to the catheter. The end structure of the elastic rib allows the elastic rib to stretch the bag body without closing the catheter when the limiter moves along the guide rail formed by the elastic rib to one of the ends, namely the arc segment. When the limiter continues to move to the closed segment, it will cooperate with the closed segment to close the catheter, so that the gas in the bag body will not overflow out of the bag body. When in use, a limiter is moved to the closed segment close to the interface for connecting the sealing bag, and after inserting the anal canal, another limiter is moved to stretch the bag body, and after exhausting, the limiter is continued to be moved to close the catheter on one side of the anal canal. The limiter on one side of the sealing bag moves toward the middle, so that the bag body is squeezed and the volume becomes smaller, and the gas in the bag body is squeezed into the liquid of the sealing bag and absorbed, and then another limiter is moved to the middle, and the previous steps can be repeated to perform exhaust in a cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a specific embodiment of a drainage assembly (anal canal); Figure 2 It is a schematic diagram of an anal tube and a sealed packaging bag; Figure 3 is a schematic diagram of the negative pressure generating unit in Example 1; Figure 4 is an enlarged schematic diagram of the cross section of the elastic rib and the limiting member; Figure 5 is a schematic diagram of a negative pressure generating unit of Example 2; Figure 6This is a schematic diagram of the connection between the negative pressure generating unit and the sealing bag in Example 2; Figure 7 It is an enlarged schematic diagram of the cross section of the duct and the arc segment; Figure 8 This is an enlarged schematic diagram of the end of the elastic rib.

[0018] Explanation of the accompanying drawings: 1. anal canal; 101. side hole; 2. sealed packaging bag; 3. negative pressure generating unit; 301. membrane shell; 302. cavity; 303. first surface; 304. second surface; 305. catheter; 306. interface; 307. elastic rib; 3071. arc segment; 3072. closed segment; 308. limiter; 309. clamp arm; 310. bayonet; 311. connecting rod; 4. sealing bag; 5. pipeline. DETAILED DESCRIPTION

[0019] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0020] Reference Figures 1 to 8 As shown, a gas discharge device of the present invention is mainly used for assisting the exhaust of abdominal distension of newborns, and mainly includes a discharge discharge assembly and a negative pressure generating unit 3. The discharge discharge assembly is used to be inserted into the intestine to discharge the accumulated gas in the intestine. The negative pressure generating unit 3 is provided with a cavity 302, which is used to form negative pressure and guide the accumulated gas in the intestine discharged by the discharge discharge assembly into the cavity 302. The specific scheme includes: one end of the discharge discharge assembly is connected with the cavity 302, and the cavity 302 is connected with the intestine through the discharge discharge assembly. The negative pressure generating unit 3 forms a negative pressure between the cavity 302 connected with the discharge discharge assembly and the position of the gas medium to be discharged from the human body, i.e., the intestine, by changing the volume of the cavity 302. The components of the discharge discharge device are described separately through specific embodiments below.

[0021] Reference Figure 1 and Figure 2 As shown, the drainage assembly mainly includes an anal tube 1, which is made of a silicone hose. Figure 2 Shown is a schematic diagram of an anal canal 1 stored in a sealed packaging bag 2, Figure 1Schematic diagram of the anal canal 1 after being taken out of the sealed packaging bag. The anal canal 1 may be provided with scales to facilitate the grasping of the insertion depth, and the scales may be provided at only one end or both ends of the anal canal 1. Clinically, the insertion depth of the anal canal 1 for infants is generally 2.5-4.0 cm, so the length of the scale provided on the anal canal 1 may be selected to be 5.0 cm. In order to accommodate children of other age groups, the length of the scale may be appropriately extended. One or more side holes 101 can also be set on the tube side of the anal canal 1. The side holes 101 are mainly set at both ends or one end of the anal canal 1. After the end with the side hole 101 is inserted into the intestine, the air inlet between the intestine and the anal canal 1 is actually increased. In the case that the intestinal tissue may compress part of the anal canal 1, more air inlets can ensure more sufficient and smoother air conduction; when the end with the side hole 101 is used to connect the negative pressure generating unit 3, the negative pressure generating unit 3 can be provided with a corresponding tubular interface 306, and the end of the anal canal 1 is inserted into the interface 306 to form a seal. The shape of the interface 306 matches the end. The side hole 101 can reduce the resistance when the anal canal 1 is inserted, which is convenient for insertion. After insertion, the position of the side hole 101 is one end of the anal canal 1 so that the side hole 101 can be blocked by the outer wall of the interface 306 of the negative pressure generating unit. The anal tube 1 can be used not only in conjunction with the negative pressure generating unit 3, but also can be used alone, such as for exhausting the anal tube. The side holes 101 provided can effectively clear the gas accumulated in the intestinal cavity and ensure the patency of the lumen. It can also be used for ordinary enema and can be taken home for enema for babies with megacolon.

[0022] Reference Figure 3 As shown, in this specific embodiment 1, the negative pressure generating unit 3 includes a membrane-like shell 301, an elastic rib 307 that bends in a direction away from the membrane-like shell 301, and a limiter 308 that limits the bending of the elastic rib 307. The membrane-like shell 301 can be a bag body made of a plastic film that is closed on four sides, including a first surface 303 and a second surface 304. A catheter 305 is inserted between the first surface 303 and the second surface 304. One end of the catheter 305 is connected to the cavity 302, and the other end extends out of the bag body and is installed with an interface 306. The interface 306 can be a hard tube. One end of the catheter is fixed on the inner wall of the hard tube, and the interface is fixed to the bag body. The interface 306 is connected to the drainage component, that is, one end of the anal canal 1. The connection method can be a tight fit of the anal canal 1, or a thread can be set on the interface 306. A spiral tube with an internal thread is pre-set at one end of the anal canal 1. The spiral tube and the interface 306 are connected by threads. Of course, other connection methods in the prior art can also be used. The cover body can be detachably connected before the interface is connected to the anal canal. Refer to Figure 3 and Figure 4As shown, the first surface 303 and the second surface 304 are fixed with elastic ribs 307, and the elastic ribs 307 extend from one side edge of the first surface 303 and the second surface 304 or a position close to one side edge to the opposite other side edge or a position close thereto. The elastic ribs 307 are curved in an arc shape in a natural state, and their cross-section can be a truncated circle. The lower side of the truncated circle can also be provided with a rectangle or other shapes as a bottom fixed on the first surface 303 and the second surface 304. It should be noted that in this embodiment, each relatively independent cavity 302 corresponds to one bag body, and one elastic rib 307 is provided on each side and is provided in the middle of the first surface 303 and the second surface 304 of the bag body. Two or more parallel elastic ribs 307 can also be provided on each side of the bag body to better open the bag body. As mentioned above, the elastic ribs 307 are bent in a natural state, and the bag body is opened. Referring to FIG. Figure 3 and Figure 4 As shown, a stopper 308 is also provided, and the stopper 308 includes a clamping arm 309 for respectively cooperating with the elastic ribs 307 on the first surface 303 and the second surface 304. The elastic ribs 307 and the clamping arm 309 can be made of plastic to reduce the cost. The clamping arm 309 is provided with a clamping hole 310 to clamp the elastic ribs 307. The clamping arms 309 on both sides are fixed by connecting rods 311. In this embodiment, the clamping arm and the connecting rod are integrally formed. The stopper 308 is moved to the middle of the bag body to limit the bending of the elastic ribs 307. At this time, the volume of the cavity 302 formed between the first surface 303 and the second surface 304 is small. When the stopper 308 is removed or moved to one end of the bag body along the slide rail formed by the elastic ribs 307, the elastic ribs 307 return to the bent state, and the first surface 303 and the second surface 304 of the bag body are stretched and separated, and the volume becomes larger to form negative pressure. The operation process is as follows: unpack the anal canal 1 and the sealed packaging bag 2 of the negative pressure generating unit 3, connect one end of the anal canal 1 to the interface 306 of the negative pressure generating unit 3, lubricate the insertion position of the infant after checking, insert one end of the anal canal 1 into the intestine to the predetermined scale position, push the limiter 308 from the middle of the bag to one side, and discharge the accumulated gas in the intestine. After completion, use the sealing structure of the bag to close the catheter 305 or clamp the catheter 305 with a clip to prevent the gas in the bag from overflowing, unplug the anal canal 1, and treat the negative pressure generating unit 3 after use as waste.

[0023] Reference Figure 3As shown, two negative pressure generating units 3 of smaller volumes are included. The use of the negative pressure generating units 3 of smaller volumes can avoid discomfort to the baby. The two negative pressure generating units 3 can be independent of each other and used separately, or the cavity 302 of one negative pressure generating unit 3 can be connected to the cavity 302 of another negative pressure generating unit 3. In clinical practice, when the anal canal 1 is vented, abdominal massage can be performed at the same time, and experienced medical staff can judge the discharge of accumulated gas by the degree of relief of abdominal distension. When there is a lot of accumulated gas and the negative pressure generating unit 3 needs to be replaced, the interface 306 needs to be replaced, which is more troublesome. However, when two negative pressure generating units 3 are connected by the cavity 302, it is only necessary to move the limiter 308 on the other negative pressure generating unit 3 to open it.

[0024] Reference Figure 5 , Figure 6 As shown, in specific embodiment 2, on the basis of specific embodiment 1, the two opposite ends of the negative pressure generating unit 3 are respectively provided with a catheter 305 and an interface 306, and the other interface 306 is connected to the sealing bag 4 through a pipe 5. The sealing bag 4 is provided with a liquid, and the liquid is physiological saline or tap water, which is mainly used to absorb the discharged accumulated gas. In the process of using the anal tube 1 for exhaust, it generally does not exceed 20 minutes, but as the exhaust proceeds, gas is gradually injected into the cavity 302 of the negative pressure generating unit 3, and its negative pressure effect will gradually weaken. In fact, embodiment 2 restores the effect of the negative pressure generating unit 3 and prevents gas pollution by discharging the gas in the cavity 302 into another sealing bag 4 for absorption. The specific technical solutions for its implementation include: Reference Figure 5 , Figure 7 and Figure 8As shown, the guide rail formed by the elastic rib 307 is longitudinally arranged, and the end thereof extends to the top of the conduit 305. The end of the elastic rib 307 includes an arc segment 3071 and a closed segment 3072. The side of the arc segment 3071 that cooperates with the conduit 305 is arc-shaped and fits with the conduit 305. The arc segments 3071 on both sides of the conduit 305 form a protection for the conduit 305 so that the conduit 305 is not closed when the limiting member 308 moves to the arc segment 3071. The closed segment 3072 is connected to the arc segment 3071, and the side of the closed segment 3072 opposite to the conduit is flat or slightly curved, and in a natural state, the closed segment 3072 extends in a direction away from the conduit 305. When the limiting member 308 moves to the closed segment 3072, the limiting member 308 squeezes the closed segment 3072 to deform it in a direction close to the membrane shell 301 and presses the conduit 305 to close it. The structure of the arc segment 3071 and the closed segment 3072 at the end can also be used in Example 1 to achieve the closure of its catheter 305. In Example 2, the two ends of the elastic rib 307 extend to the upper side of the corresponding catheter 305 and form the corresponding arc segment 3071 and closed segment 3072, and two independent stoppers 308 are provided on the elastic rib 307. The working process is as follows: one of the stoppers 308 is moved to the closed segment 3072 at the lower end (the end connected to the sealing bag 4) to prevent the liquid in the sealing bag 4 from being sucked into the negative pressure generating unit 3, and then the upper end stopper 308 is moved to the arc segment 3071 at the upper end (the end connected to the anal canal 1) to exhaust. The present invention also includes a method for restoring the negative pressure generating unit 3 during the exhaust process. When more gas is discharged into the bag body, the upper end (connected to one end of the anal canal 1) limiter 308 is moved to the closed section 3072 to prevent the gas in the negative pressure generating unit 3 from being squeezed into the baby's body. The lower end limiter 308 moves toward the middle, and the elastic ribs 307 squeeze the cavity 302 under the action of the lower end limiter 308. After the volume is reduced, the gas can only enter the liquid in the sealing bag 4 for absorption. At this time, the upper end limiter 308 is moved to the middle, and the lower end limiter 308 is moved to the closed section 3072 at the lower end, thereby restoring the negative pressure generating unit 3.

[0025] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A gas exhaust device, comprising an exhaust assembly, characterized in that: It also includes a negative pressure generating unit, which is provided with a cavity. One end of the guide and exhaust component is connected to the cavity. The negative pressure generating unit forms a negative pressure between the cavity connected to the guide and exhaust component and the position of the gas medium to be discharged from the human body by changing the volume of the cavity.

2. A gas exhaust device according to claim 1, characterized in that: The negative pressure generating unit includes a membrane-like shell, an elastic rib bent in a direction away from the membrane-like shell, and a limiter for limiting the bending of the elastic rib. The membrane-like shell includes a first surface and a second surface. The limiter can limit the bending of the elastic rib so that the membrane-like shell is not stretched. After the limitation of the limiter is released, the elastic rib can bend and act on the first surface and the second surface of the membrane-like shell, so that the volume of the cavity between the first surface and the second surface changes.

3. A gas exhaust device according to claim 2, characterized in that: The elastic rib is fixed at the middle of the first surface and the second surface, and the elastic rib is used as a slide rail. The limiting member includes a clamping arm respectively used to cooperate with the elastic rib of the first surface or the second surface, and the clamping arm is provided with a clamping slot for clamping on the slide rail. The limiting member can move along the slide rail so that the elastic rib bends and drives the first surface and the second surface to separate.

4. A gas exhaust device according to claim 3, characterized in that: The edges of the first surface and the second surface are sealed and fixed, and a conduit for connecting the cavity is provided between the first surface and the second surface. The conduit extends to the outside of the membrane-like shell and is connected and fixed to an interface, and the interface is suitable for connecting to one end of the guide assembly.

5. A gas exhaust device according to any one of claims 1 to 4, characterized in that: It comprises two negative pressure generating units, wherein the cavity of one negative pressure generating unit is communicated with the cavity of the other negative pressure generating unit.

6. A gas exhaust device according to claim 4, characterized in that: The guide rail formed by the elastic ribs is arranged longitudinally, and the end thereof extends to the top of the catheter. The end of the elastic ribs has an arc segment that fits the catheter and a closing segment for closing the catheter. When the limiting member moves to the arc segment, the catheter is not closed, and when the limiting member moves to the closing segment, the closing segment is squeezed to deform in a direction close to the membrane-like shell and press the catheter to close it.

7. A gas exhaust device according to claim 6, characterized in that: The negative pressure generating unit is provided with a conduit and an interface at two opposite ends respectively, and the two ends of the elastic rib extend above the corresponding conduit and form a corresponding arc segment and a closed segment respectively, and the elastic rib is provided with two limit members.

8. A gas exhaust device according to claim 7, characterized in that: It also includes a sealing bag, in which liquid is arranged. One of the interfaces of the negative pressure generating unit is connected to the sealing bag through a pipeline, and the sealing bag is provided with absorption liquid.

9. A gas guiding assembly, used in the gas guiding device according to any one of claims 1 to 4, characterized in that: The drainage assembly comprises a silicone hose, on which scales are arranged, and one or both ends of the silicone hose are provided with side holes.

10. A method for using a negative pressure generating unit, used in the gas exhaust device according to claim 8, characterized in that: The following steps are involved: S1: Move the lower end limiter to the closed section at the lower end, move the upper end limiter to the arc section at the upper end, and exhaust air into the cavity; S2: When a certain amount of gas is discharged into the bag, the upper limiter is moved to the closed section; S3: Move the lower end stopper toward the middle of the negative pressure generating unit, and the elastic ribs squeeze the cavity under the action of the lower end stopper, and the gas enters the liquid in the sealing bag for absorption after the volume is reduced; S4: moving the upper end limiter to the middle of the negative pressure generating unit to restore the negative pressure generating unit; S5: Cycle steps S1 to S4 to exhaust.

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