Disposable negative pressure suction bottle

Abstract

The utility model discloses a disposable negative pressure suction bottle. The disposable negative pressure suction bottle comprises a bottle body, a bottle cap and an anti-overflow valve, wherein the bottle body is provided with a bottle cavity and a cavity opening communicated with the bottle cavity; the bottle cap is arranged at the cavity opening in a covering mode, and an air inlet hole and an air outlet hole which are communicated with the bottle cavity are formed in the bottle cap; the anti-overflow valve is arranged on the inner side of the bottle cap and corresponds to the air outlet hole, the anti-overflow valve has a breathable state and a closed state, the bottle cavity and the air outlet hole can be communicated through the anti-overflow valve when the anti-overflow valve is in the breathable state, and the air outlet hole can be blocked through the anti-overflow valve when the anti-overflow valve is in the closed state. According to the disposable negative pressure suction bottle, all parts of the whole disposable negative pressure suction bottle are well sealed, only the air inlet and the air outlet need to be communicated with the outside in a butt joint mode, sealing operation is better processed, and the whole disposable negative pressure suction bottle is few in component, simple in structure, more convenient to assemble and more convenient to use and operate.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a disposable negative pressure suction bottle. Background Art

[0002] Negative pressure suction bottles, such as suction pumps, are used to clear blockages caused by various secretions in the respiratory organs or other surgical procedures. The market for this product is gradually expanding due to factors such as the rising incidence of chronic diseases, the increasing demand for compact and portable devices, and the increasing number of surgical procedures. Suctioning is a routine operation in the care of patients. A critically ill patient needs suction several times a day, usually every two hours.

[0003] The structure of the existing sputum suction device is usually complicated: first, the suction bottle is mostly a double-layer shell, the outer layer uses a hard plastic shell to provide a negative pressure space, and the inner layer uses a plastic soft shell to store waste liquid. Such a structure requires more joints and pipes to be connected, and a secondary sealing structure is required to ensure the sealing of the double-layer cavity. Secondly, the complex structure requires more complex pipeline connection operations during use, which will increase the skill requirements and assembly time of the user, and affect the timeliness of patient care; thirdly, due to the large number of structural components, more parts need to ensure the sealing of the sputum suction device, causing more leakage points of negative pressure vacuum. During use and installation, once an assembly error occurs, the vacuum degree of the sputum suction device may be insufficient, affecting the strength and effect of subsequent sputum suction; finally, since the inner shell for storing waste liquid is a soft shell, it is not easy to transport and place the waste liquid when it is disposed of. If it is placed directly in a garbage bag or trash can, the soft shell will deform and squeeze out the waste liquid and spray it, increasing the risk of biological infection and the difficulty of waste liquid transportation. At the same time, since the outer hard shell is reusable, cross contamination is more likely to occur. Utility Model Content

[0004] In order to solve the above technical problems, the main purpose of the utility model is to provide a disposable negative pressure suction bottle, which aims to solve the problem that the traditional sputum suction device has a complex suction bottle structure, which makes it easy to have problems with assembly and sealing, and the waste treatment is prone to leakage, causing cross contamination.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a disposable negative pressure suction bottle, comprising:

[0006] The bottle body comprises a bottle cavity and a cavity opening connected to the bottle cavity;

[0007] A bottle cap, which is arranged at the cavity opening, and is provided with an air inlet and an air outlet communicating with the bottle cavity;

[0008] An anti-overflow valve is arranged on the inner side of the bottle cap and corresponds to the air outlet. The anti-overflow valve has a breathable state and a closed state. When in the breathable state, the anti-overflow valve can connect the bottle cavity and the air outlet. When in the closed state, the anti-overflow valve can block the air outlet.

[0009] Optionally, the bottle cap and the bottle body are sealed.

[0010] Optionally, the anti-overflow valve is arranged at the end of the air outlet, the anti-overflow valve is air-permeable and can connect the bottle cavity and the air outlet; when the anti-overflow valve meets water, it can present a closed state of closing its air permeability to block the air outlet.

[0011] Optionally, the bottle cap includes a cover plate arranged in a groove shape, a flange arranged on the edge of the groove of the cover plate, and a convex ring protruding from the inner side of the cover plate, the convex ring is arranged on the inner peripheral side of the cover plate and is spaced apart from the peripheral side wall of the cover plate, the air inlet and the air outlet are arranged on the cover plate, and the mouth of the bottle cavity is accommodated in the gap between the convex ring and the cover plate.

[0012] Optionally, a first protrusion and a second protrusion are protruded from the outer side of the cover plate, the first protrusion is arranged corresponding to the air inlet, and the second protrusion is arranged corresponding to the air outlet.

[0013] Optionally, a first annular protrusion is protruded from the inner side of the cover plate, and the first annular protrusion is arranged around the outer peripheral side of the air inlet hole.

[0014] Optionally, a second annular protrusion is protruding from the inner side of the cover plate, the second annular protrusion is arranged around the outer peripheral side of the air outlet, and the anti-overflow valve is sleeved on the second annular protrusion.

[0015] Optionally, a third annular protrusion is protruding from the inner side of the cover plate, and the third annular protrusion is arranged around the outer peripheral side of the second annular protrusion. The anti-overflow valve is partially accommodated between the second annular protrusion and the third annular protrusion and covers the end of the second annular protrusion.

[0016] Optionally, a plurality of convex ribs are protruding from the inner circumference of the third annular protrusion, and the plurality of convex ribs are arranged at intervals along the circumference of the third annular protrusion.

[0017] Optionally, a melting ring is protruding from the cavity end surface of the bottle body.

[0018] The technical solution provided by the utility model has the following beneficial effects:

[0019] The disposable negative pressure suction bottle provided by the utility model comprises a bottle body, a bottle cap and an anti-overflow valve, wherein the bottle body forms a bottle cavity, the bottle cavity can be used to store waste (such as sputum, etc.), the bottle cap can seal the bottle cavity, and an air inlet and an air outlet are arranged on the bottle cap, the air inlet can be communicated with a place to be sucked (such as the patient's body), and the air outlet can be communicated with a suction device (such as a vacuum pump or a fan, etc.), and a negative pressure is formed in the bottle cavity through the suction device, thereby sucking waste from the patient's body. out, to be sucked into the bottle cavity for storage; moreover, an anti-overflow valve is provided at the air outlet, and during normal suction operation, the anti-overflow valve is in a ventilated state to connect the bottle cavity and the suction device, thereby forming a suction cycle; when there is too much dirt in the bottle cavity, the anti-overflow valve can be in a closed state, thereby blocking the connection between the bottle cavity and the suction device to stop suction. On the one hand, when the bottle cavity is full, the suction operation is stopped in time, and on the other hand, the dirt in the bottle cavity can be prevented from overflowing to avoid secondary pollution. Moreover, the disposable negative pressure suction bottle is well sealed at all places, and only needs to be connected to the outside at the air inlet and the air outlet, and the sealing operation is also easier to handle. The entire disposable negative pressure suction bottle has fewer parts, a simple structure, and is more convenient to assemble and operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 A schematic structural diagram of an embodiment of a disposable negative pressure suction bottle provided by the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of an exploded structure of the disposable negative pressure suction bottle;

[0023] Figure 3 for Figure 2 A schematic diagram of the exploded structure of the disposable negative pressure suction bottle from another perspective;

[0024] Figure 4 for Figure 1 A schematic cross-sectional structure diagram of the disposable negative pressure suction bottle;

[0025] Figure 5 for Figure 1 Schematic diagram of the structure of the bottle cap described in.

[0026] Description of Figure Numbers:

[0027] 100-disposable negative pressure suction bottle; 1-bottle body; 11-cavity; 12-melting ring; 2-bottle cap; 21-cover plate; 211-air inlet; 212-air outlet; 22-first protruding nozzle; 23-second protruding nozzle; 24-convex ring; 25-first annular protrusion; 26-second annular protrusion; 27-third annular protrusion; 28-convex rib; 29-flanged edge; 3-anti-overflow valve.

[0028] The realization of the purpose, functional characteristics and excellent effects of the utility model will be further explained below in conjunction with specific embodiments and drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that if a directional indication is involved in the embodiments of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0032] The utility model provides a disposable negative pressure suction bottle 100, which can be used to suck out sputum in a patient's body, waste liquid generated during surgery, or other surgical procedures, etc. Various wastes can be collected and stored by the disposable negative pressure suction bottle 100, so as to facilitate centralized treatment and avoid cross contamination. For the convenience of description, the disposable negative pressure suction bottle 100 will be used to suck sputum as an example for description.

[0033] Specifically, see Figures 1 to 3 In this embodiment, the disposable negative pressure suction bottle 100 includes a bottle body 1, a bottle cap 2 and an anti-overflow valve 3. The bottle body 1 has a bottle cavity and a cavity 11 connected to the bottle cavity, and the bottle cavity can be used to store the sucked out dirt; the bottle cap 2 is covered at the cavity 11 to close the bottle cavity, and the bottle cap 2 is provided with an air inlet 211 and an air outlet 212 connected to the bottle cavity; the anti-overflow valve 3 is arranged on the inner side of the bottle cap 2 and corresponding to the air outlet 212. The anti-overflow valve 3 has a breathable state and a sealed state. When in the breathable state, the anti-overflow valve 3 can connect the bottle cavity and the air outlet 212, and when in the sealed state, the anti-overflow valve 3 can block the air outlet 212.

[0034] In this embodiment, the bottle cavity can be used to store waste (such as sputum, etc.), and the bottle cap 2 can seal the bottle cavity. By providing an air inlet 211 and an air outlet 212 on the bottle cap 2, the air inlet 211 can be connected to the place to be sucked (such as the patient's body), and the air outlet 212 can be connected to a suction device (such as a vacuum pump or a fan, etc.). The suction device forms a negative pressure in the bottle cavity, thereby sucking out the waste in the patient's body and sucking it into the bottle cavity. storage; moreover, an anti-overflow valve 3 is provided at the air outlet 212. When the suction operation is performed normally, the anti-overflow valve 3 is in a ventilated state to connect the bottle cavity and the suction device, thereby forming a suction cycle; when there is too much dirt in the bottle cavity, the anti-overflow valve 3 can be in a closed state, thereby blocking the connection between the bottle cavity and the suction device to stop suction. On the one hand, when the bottle cavity is full, the suction operation is stopped in time, and on the other hand, the dirt in the bottle cavity can be prevented from overflowing to avoid secondary pollution. Moreover, the disposable negative pressure suction bottle 100 is well sealed at all places, and only needs to be connected to the outside at the air inlet 211 and the air outlet 212, so the sealing operation is easier to handle. The entire disposable negative pressure suction bottle 100 has fewer parts, a simple structure, and is more convenient to assemble and use.

[0035] It can be understood that there are many configuration forms of the anti-overflow valve 3. In one embodiment, the anti-overflow valve 3 can be configured as a valve body structure that can have an open and closed state to open and close the air outlet 212. The valve body structure can be opened during the suction operation. After the suction operation is completed, the air outlet 212 can be closed by the anti-overflow valve 3 to prevent dirt from flowing out of the air outlet 212.

[0036] Wherein, the anti-overflow valve 3 is arranged at the end of the air outlet 212, and the anti-overflow valve 3 is air-permeable and can connect the bottle cavity and the air outlet 212; when the anti-overflow valve 3 meets water, it can present a closed state of closing its air holes to block the air outlet 212. Preferably, the anti-overflow valve 3 is made of medical pure ultra-high molecular weight polyethylene through a sintering process. When the disposable negative pressure suction bottle 100 performs suction operation normally, micro-permeable holes are formed inside the anti-overflow valve 3, which is air-permeable, thereby connecting the bottle cavity and the air outlet 212; when too much dirt is sucked into the bottle cavity and the dirt has covered the anti-overflow valve 3, after the anti-overflow valve 3 meets water, the micropores are closed, becoming airtight and watertight, thereby protecting the dirt from being sucked out of the bottle. Since the suction bottle is a disposable item, the use of a valve body structure is obviously more expensive. In addition, the anti-overflow valve 3 is made of a special material relative to the valve body structure, which can better ensure that the disposable negative pressure suction bottle 100 will not leak after being thrown into a trash can, thereby avoiding secondary pollution.

[0037] Moreover, the bottle cap 2 and the bottle body 1 are sealed and connected, and the sealed connection here means that they can be connected by welding, such as melting, ultrasonic welding, or gluing, or the bottle cap 2 and the bottle body 1 can be integrally formed. This makes the connection between the bottle body 1 and the bottle cap 2 more airtight and prevents leakage; and no additional sealing components are required, making the disposable negative pressure suction bottle 100 simpler in structure and more convenient to use.

[0038] Among them, Figure 2 As shown in the figure, a melting ring 12 is protruded on the end surface of the cavity 11 of the bottle body 1, and the melting ring 12 can increase the strength of welding while reducing the deformation of the bottle body 1 itself, thereby better ensuring the sealing effect of the entire suction bottle. Moreover, the bottle body 1 is transparent, and a raised scale line and a digital mark are provided on the outer surface of the bottle body 1, which is more conducive to observing the volume change of the dirt in the bottle cavity, so that the user can deal with it in time.

[0039] The bottle body 1 and the bottle cap 2 can both be made of plastic. Preferably, the bottle body 1 and the bottle cap 2 are both made of polypropylene plastic injection molding, which is simple to mold and low in cost. The bottle body 1 is generally cylindrical. When the disposable negative pressure suction bottle 100 is used normally, the cavity 11 of the bottle body 1 is arranged upward, and the bottle cap 2 is arranged at the cavity 11 to close the cavity 11. Specifically, in combination with Figure 2 , Figure 3 and Figure 5 As shown, the bottle cap 2 includes a cover plate 21 arranged in a groove shape, a flange 29 arranged on the edge of the groove of the cover plate 21, and a convex ring 24 protruding from the inner side of the cover plate 21, the convex ring 24 is arranged on the inner peripheral side of the cover plate 21, and is spaced apart from the peripheral side wall of the cover plate 21, the air inlet 211 and the air outlet 212 are arranged on the cover plate 21, the cavity 11 of the bottle cavity is accommodated in the interval between the convex ring 24 and the cover plate 21, the flange 29 is arranged around the outer peripheral side of the bottle body 1, and the flange 29 is located below the cavity 11, which can form a shielding on the outside, thereby preventing external water from entering the bottle cavity. The convex ring 24 can increase the sealing effect at the cavity opening 11, and can also increase the strength of the bottle cap 2. It can also prevent the molten plastic flash and debris from falling into the bottle cavity when the bottle body 1 and the bottle cap 2 are welded, thereby affecting the cleanliness of the inside of the bottle cavity.

[0040] Furthermore, a first protrusion 22 and a second protrusion 23 are protruded from the outer side of the cover plate 21, wherein the first protrusion 22 is arranged corresponding to the air inlet 211, and the second protrusion 23 is arranged corresponding to the air outlet 212. The first protrusion 22 and the second protrusion 23 can be better connected to an external pipe fitting, so as to be connected to a suction device or an affected part of a human body, so as to facilitate suction operation. Preferably, the first protrusion 22 and the second protrusion 23 are both arranged in a substantially cylindrical shape, and in the direction from the bottle cap 2 to the outside along the axial direction thereof, the outer diameter of the first protrusion 22 and the outer diameter of the second protrusion 23 are both gradually reduced, so as to facilitate sleeve connection with the pipe fitting.

[0041] Moreover, combined with Figure 3 and Figure 5 As shown, a first annular protrusion 25 is also protruded from the inner side of the cover plate 21, and the first annular protrusion 25 is arranged around the outer peripheral side of the air inlet hole 211. On the one hand, the first annular protrusion 25 can guide the dirt sucked into the bottle cavity to reduce the rapid expansion of the dirt after entering the bottle cavity. On the other hand, a barrier can be formed between the air inlet hole 211 and the anti-overflow valve 3 to prevent dirt from being contaminated on the anti-overflow valve 3 too early, thereby preventing the anti-overflow valve 3 from being closed too early, thereby ensuring a better use effect of the disposable negative pressure suction bottle 100.

[0042] Furthermore, combined with Figure 3 and Figure 5 As shown, a second annular protrusion 26 is also protruded from the inner side of the cover plate 21, and the second annular protrusion 26 is arranged around the outer peripheral side of the gas outlet, and the anti-overflow valve 3 is sleeved on the second annular protrusion 26, and a support column for installing the anti-overflow valve 3 is formed through the second annular protrusion 26. In particular, in the direction from the cover plate 21 toward the bottle cavity along its axial direction, the outer diameter of the second annular protrusion 26 is gradually reduced, so as to facilitate the sleeve of the anti-overflow valve 3 on the second annular protrusion 26 and ensure that the anti-overflow valve 3 can be sleeved more securely.

[0043] Furthermore, combining Figure 3 and Figure 5 As shown, a third annular protrusion 27 is also protruded on the inner side of the cover plate 21, and the third annular protrusion 27 is arranged around the outer peripheral side of the second annular protrusion 26. The anti-overflow valve 3 is arranged between the second annular protrusion 26 and the third annular protrusion 27, and is covered on the end of the second annular protrusion 26. The anti-overflow valve 3 is arranged in a groove shape, and the anti-overflow valve 3 is sleeved on the second annular protrusion 26 from its groove end, and its groove bottom is covered on the end of the second annular protrusion 26, so as to ensure that dirt is not easy to overflow directly from the air outlet 212. Moreover, the third annular protrusion 27 can further form a barrier between the air inlet 211 and the air outlet 212, so as to prevent the dirt entering from the air inlet 211 from being spilled onto the anti-overflow valve 3 too early, thereby affecting the ventilation effect of the anti-overflow valve 3.

[0044] Moreover, a plurality of convex ribs 28 are protruding from the inner circumference of the third annular protrusion 27, and the plurality of convex ribs 28 are arranged at intervals along the circumference of the third annular protrusion 27. The plurality of convex ribs 28 can increase the installation strength of the anti-overflow valve 3, ensure sufficient clearance for airflow, prevent the anti-overflow valve 3 from falling off, and provide a better ventilation effect.

[0045] In addition, if Figure 1 and Figure 2 As shown in the figure, the outer side of the bottle cap 2, that is, the outer side of the cover plate 21, is also provided with indicator marks to respectively indicate the positions of the air outlet 212 and the air inlet 211. For example, an "OUT" mark is printed on one side of the air outlet 212, and an "IN" mark is printed on one side of the air inlet 211, so that the user can quickly identify the air inlet and outlet ends, thereby facilitating the connection of external pipe fittings for suction operation.

[0046] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure made using the contents of the specification and drawings of the present invention, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A disposable negative pressure suction bottle, characterized in that: include: The bottle body comprises a bottle cavity and a cavity opening connected to the bottle cavity; A bottle cap, which is arranged at the cavity opening, and is provided with an air inlet and an air outlet connected to the bottle cavity; An anti-overflow valve is arranged on the inner side of the bottle cap and corresponds to the air outlet. The anti-overflow valve has a breathable state and a closed state. When in the breathable state, the anti-overflow valve can connect the bottle cavity and the air outlet. When in the closed state, the anti-overflow valve can block the air outlet.

2. The disposable negative pressure suction bottle according to claim 1, characterized in that: The bottle cap and the bottle body are sealed and connected.

3. The disposable negative pressure suction bottle according to claim 1, characterized in that: The anti-overflow valve is arranged at the end of the air outlet, and the anti-overflow valve is air-permeable and can connect the bottle cavity and the air outlet; when the anti-overflow valve meets water, it can present a closed state of closing its air permeability to block the air outlet.

4. The disposable negative pressure suction bottle according to claim 1, characterized in that: The bottle cap includes a cover plate arranged in a groove shape, a flange arranged on the edge of the groove of the cover plate, and a convex ring protruding from the inner side of the cover plate, the convex ring is arranged on the inner peripheral side of the cover plate and is spaced apart from the peripheral side wall of the cover plate, the air inlet and the air outlet are arranged on the cover plate, and the cavity opening of the bottle cavity is accommodated in the interval between the convex ring and the cover plate.

5. The disposable negative pressure suction bottle according to claim 4, characterized in that: The outer side of the cover plate is protruded with a first protrusion and a second protrusion. The first protrusion is arranged corresponding to the air inlet, and the second protrusion is arranged corresponding to the air outlet.

6. The disposable negative pressure suction bottle according to claim 4, characterized in that: A first annular protrusion is protruded from the inner side of the cover plate, and the first annular protrusion is arranged around the outer peripheral side of the air inlet hole.

7. The disposable negative pressure suction bottle according to claim 6, characterized in that: A second annular protrusion is protruded from the inner side of the cover plate, the second annular protrusion is arranged around the outer peripheral side of the air outlet, and the anti-overflow valve is sleeved on the second annular protrusion.

8. The disposable negative pressure suction bottle according to claim 7, characterized in that: The inner side of the cover plate is also protruding with a third annular protrusion, and the third annular protrusion is arranged around the outer peripheral side of the second annular protrusion. The anti-overflow valve is partially accommodated between the second annular protrusion and the third annular protrusion, and covers the end of the second annular protrusion.

9. The disposable negative pressure suction bottle according to claim 8, characterized in that: The inner circumference of the third annular protrusion is protrudingly provided with a plurality of convex ribs, and the plurality of convex ribs are arranged at intervals along the circumference of the third annular protrusion.

10. The disposable negative pressure suction bottle according to claim 1, characterized in that: A melting ring is protruding from the cavity end surface of the bottle body.

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