CN220938670U - Oral liquid collector - Google Patents

Abstract

The utility model relates to an oral water collector which comprises a collecting bottle, a needle cylinder, a pressure relief valve, a three-way valve and a saliva suction pipe. The collection bottle has a gas connection and a liquid inlet connection. The needle cylinder is communicated with the gas joint. A pressure relief valve is provided to the collection bottle, the pressure relief valve being configured to allow gas to flow from within the collection bottle to the outside and to prevent gas from flowing from the outside into the collection bottle. The switching piece of the three-way valve enables the first interface of the three-way valve to be communicated with the second interface or enables the first interface to be communicated with the third interface, and the second interface is communicated with the liquid inlet joint. The liquid outlet end of the saliva suction tube is communicated with the first interface. The air in the collecting bottle is extracted through the needle cylinder, and the air is prevented from flowing into the collecting bottle from the outside by matching with the pressure release valve, so that negative pressure is generated in the collecting bottle, and mouth water in the mouth cavity can be sucked into the collecting bottle for collection. When the needle cylinder is required to be reused to generate negative pressure, the needle cylinder is firstly filled with gas into the collecting bottle, and the gas is allowed to flow out of the collecting bottle through the pressure relief valve, so that the air pressure of the collecting bottle cannot rise, and the backflow of mouth water in the saliva suction pipe is avoided.

Description

Oral liquid collector

Technical Field

The utility model relates to the field of medical equipment, in particular to an oral water collector.

Background

Clinically, some patients need to adopt prone or lateral positions, sometimes saliva of people can flow to the face of the patient along the corners of the mouth due to the action of gravity, sometimes the saliva can flow out more, so that pillows, operating tables, body position pads and the like are polluted, for example, when a patient using an endotracheal tube is subjected to general anesthesia operation, the mouth water of the patient can flow out more, so that the body position pads and the operating tables are polluted, and thorough wiping and disinfection are needed after operation, so that the workload of medical staff is greatly increased. If the oral liquid can be collected, the pollution in the operation can be reduced, and the trouble of cleaning by medical staff is avoided.

The Chinese patent with publication number CN210612271U discloses a patient's oral water collecting device, when in use, the drainage cotton is clamped and hung on the corners of the mouth, the drainage cotton is led into the oral cavity, the passage of a medical tee is regulated, the negative pressure generating device is communicated with the front end drainage tube, the vacuum oral water collector is closed, and the negative pressure generating device is started to form a negative pressure environment in the rear end drainage tube and the deformation saccule; the passage of the medical tee joint is changed, so that the vacuum mouth water collector is communicated with the front end drainage tube, the negative pressure generating device is closed, and mouth water enters the mouth water collector under the action of drainage cotton and negative pressure. Namely, the passageway of the medical tee joint needs to be adjusted once for collecting the water at each time, and the use process is complicated.

Disclosure of utility model

The utility model aims to provide a water collector which is convenient to operate.

In order to solve the technical problems, the utility model adopts the following technical scheme.

The present utility model provides an oral water collector comprising: a collection bottle having a gas connector and a liquid inlet connector; the needle cylinder is communicated with the gas connector and is used for extracting gas in the collecting bottle or filling gas into the collecting bottle; a pressure relief valve provided to the collection bottle, the pressure relief valve configured to allow gas to flow from the collection bottle to the outside and to prevent gas from flowing from the outside to the collection bottle; the three-way valve is provided with a first interface, a second interface and a third interface, and comprises a switching piece, wherein the switching piece enables the first interface to be communicated with the second interface or enables the first interface to be communicated with the third interface, and the second interface is communicated with the liquid inlet joint; and the liquid outlet end of the saliva suction pipe is communicated with the first interface.

According to some embodiments of the application, the collection bottle comprises a bottle body and a bottle cap detachably covered on the bottle body; the bottle cap is provided with the gas connector and the liquid inlet connector, and the pressure relief valve is arranged on the bottle cap.

Some embodiments of the application, the gas joint comprises a first section and a second section; the first section extends vertically, and the lower end of the first section is connected with the bottle cap; the second section extends transversely, and the first end of the second section is communicated with the upper end of the first section; the needle cylinder extends in a transverse direction and is inserted into the second section from the second end of the second section.

In some embodiments of the application, the second section comprises a reduced diameter section and an expanded diameter section; the first end of the diameter-reducing section is communicated with the upper end of the first section; the first end of the expanding section is communicated with the second end of the reducing section, and the inner diameter of the expanding section is larger than that of the reducing section, so that a step is formed between the expanding section and the reducing section; the needle cylinder is inserted into the expanding section from the second end of the expanding section and is propped against the step.

According to some embodiments of the application, the water collector further comprises a sealing ring; a sealing groove is arranged in the expanding section; the sealing ring is arranged in the sealing groove and is used for sealing the needle cylinder.

According to some embodiments of the application, the seal ring is a Y-shaped seal ring, and an opening of the Y-shaped seal ring faces the first end of the expanded diameter section.

Some embodiments of the application, the water collector further comprises a one-way valve; the one-way valve is arranged on the saliva suction tube and is configured to allow saliva to flow from the liquid inlet end to the liquid outlet end of the saliva suction tube and prevent saliva from flowing from the liquid outlet end to the liquid inlet end of the saliva suction tube.

According to some embodiments of the application, the saliva suction tube comprises a front section and a rear section; the liquid outlet end of the front section is communicated with the first port of the one-way valve and is detachably connected with the first port; the liquid inlet end of the rear section is communicated with the second port of the one-way valve, and the liquid outlet end of the rear section is communicated with the first interface; the one-way valve is configured to allow saliva to flow from the first port to the second port and to prevent saliva from flowing from the second port to the first port; the liquid inlet connector is in a conical tubular structure with a narrow upper part and a wide lower part; the mouth water collector also comprises a communicating pipe, the liquid inlet end of the communicating pipe is communicated with the second joint, and the liquid outlet end of the communicating pipe is detachably sleeved on the liquid inlet joint and is communicated with the liquid inlet joint.

According to some embodiments of the application, the water collector further comprises a lifting lug, and the lifting lug is fixedly connected to the one-way valve.

Some embodiments of the application, the oral water collector further comprises a plug portion; the plug part is used for detachably sleeving the liquid inlet end of the saliva suction tube, and a plurality of liquid inlets communicated with the liquid inlet end are uniformly distributed on the plug part.

As can be seen from the technical scheme, the embodiment of the utility model has at least the following advantages and positive effects:

In the oral water collector provided by the embodiment of the utility model, the switching piece of the three-way valve is switched to a state that the first interface is communicated with the second interface, the air in the collecting bottle is extracted through the needle cylinder, the air is prevented from flowing into the collecting bottle from the outside by matching with the pressure release valve, so that negative pressure is generated in the collecting bottle, and the saliva suction pipe can suck oral water in the oral cavity into the collecting bottle for collection under the action of the negative pressure. Along with the entering of air and mouth water, the negative pressure in the collecting bottle is reduced, when the needle cylinder is required to be reused to generate negative pressure, the needle cylinder is firstly filled with gas into the collecting bottle, and the gas is allowed to flow out of the collecting bottle through the pressure release valve, so that the air pressure of the collecting bottle cannot be increased, and the mouth water in the saliva suction pipe is prevented from flowing back into the oral cavity. At this time, the needle cylinder can extract the gas in the collecting bottle again, so that continuous negative pressure is generated in the collecting bottle. The switching piece is always kept in a state that the first interface is communicated with the second interface in the whole process, switching is not needed, and operation is more convenient.

In addition, sometimes the mouth water of the patient contains phlegm and food residues, the blockage of the liquid suction pipe is easy to cause, the switching piece can be switched to a state that the first interface is communicated with the third interface, the third interface is an opening communicated with the outside, and high-pressure gas or liquid can be introduced into the liquid suction pipe to dredge the liquid suction pipe.

Drawings

Various objects, features and advantages of the present utility model will become more apparent from the following detailed description of the preferred embodiments of the utility model, when taken in conjunction with the accompanying drawings. The drawings are merely exemplary illustrations of the utility model and are not necessarily drawn to scale. In the drawings, like reference numerals refer to the same or similar parts throughout. Wherein:

Fig. 1 is a schematic view of the structure of an oral water collector according to an embodiment of the present utility model.

Fig. 2 is an enlarged schematic view of the area a in fig. 1.

Fig. 3 is an enlarged schematic view of region B in fig. 1.

The reference numerals are explained as follows: 1. a collection bottle; 11. a bottle body; 12. a bottle cap; 13. a gas joint; 131. a first section; 132. a second section; 1321. a reducing section; 1322. an expanding section; 1323. a step; 14. a liquid inlet joint; 2. a needle cylinder; 3. a pressure release valve; 4. a three-way valve; 41. a switching member; 5. a saliva suction tube; 51. a front section; 52. a rear section; 6. a one-way valve; 7. lifting lugs; 8. a plug portion; 9. a seal ring; 10. and communicating pipe.

Detailed Description

While this utility model is susceptible of embodiment in different forms, there is shown in the drawings and will herein be described in detail, specific embodiments thereof with the understanding that the present disclosure is to be considered as an exemplification of the principles of the utility model and is not intended to limit the utility model to that as illustrated.

Thus, rather than implying that each embodiment of the present utility model must have the characteristics described, one of the characteristics indicated in this specification will be used to describe one embodiment of the present utility model. Furthermore, it should be noted that the present specification describes a number of features. Although certain features may be combined together to illustrate a possible system design, such features may be used in other combinations not explicitly described. Thus, unless otherwise indicated, the illustrated combinations are not intended to be limiting.

In the embodiments shown in the drawings, indications of orientation (such as up, down, left, right, front and rear) are used to explain the structure and movement of the various elements of the utility model are not absolute but relative. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the description of the position of these elements changes, the indication of these directions changes accordingly.

Referring to fig. 1 to 3, an oral water collector according to an embodiment of the present utility model includes a collecting bottle 1, a syringe 2, a pressure release valve 3, a three-way valve 4 and a saliva suction tube 5.

The collection bottle 1 has a gas connection 13 and a liquid connection 14. The needle cylinder 2 is communicated with a gas joint 13 for extracting gas in the collecting bottle 1 or filling gas into the collecting bottle 1. A pressure relief valve 3 is provided to the collection bottle 1, the pressure relief valve 3 being configured to allow gas to flow from inside the collection bottle 1 to the outside and to prevent gas from flowing from the outside into the collection bottle 1. The three-way valve 4 has a first port, a second port and a third port, the three-way valve 4 includes a switching member 41, the switching member 41 connects the first port to the second port or connects the first port to the third port, and the second port to the liquid inlet joint 14. The liquid outlet end of the saliva suction tube 5 is communicated with the first interface.

The switching member 41 of the three-way valve 4 is switched to a state in which the first port is communicated with the second port, the gas in the collection bottle 1 is extracted through the cylinder 2, the gas is prevented from flowing into the collecting bottle 1 from the outside by the pressure release valve 3, so that negative pressure is generated in the collecting bottle 1, and the saliva suction pipe 5 can suck oral cavity water into the collecting bottle 1 for collection under the action of the negative pressure. Along with the entering of air and mouth water, the negative pressure in the collecting bottle 1 is reduced, when the needle cylinder 2 is required to be reused to generate negative pressure, the needle cylinder 2 is firstly filled with gas into the collecting bottle 1, and the gas is allowed to flow out of the collecting bottle 1 by matching with the pressure release valve 3, so that the air pressure of the collecting bottle 1 can not be increased, and the mouth water in the saliva suction pipe 5 is prevented from flowing back into the oral cavity. At this time, the cylinder 2 can again draw out the gas in the collection bottle 1, so that a continuous negative pressure is generated in the collection bottle 1. The switching piece 41 is always kept in a state of enabling the first interface to be communicated with the second interface in the whole process, switching is not needed, and operation is more convenient.

In addition, in some cases, sputum and food residues are contained in the oral water of the patient, which may easily cause blockage of the pipette, the switching member 41 may be switched to a state in which the first port is connected to the third port, which is an opening communicating with the outside, and high-pressure gas or liquid may be introduced into the pipette to dredge the pipette.

The collecting bottle 1 includes a body 11 and a cap 12 detachably fitted to the body 11. The bottle cap 12 is provided with a gas connector 13 and a liquid inlet connector 14, and the pressure release valve 3 is arranged on the bottle cap 12. The mouth water is collected at the body 11, when need pour out the mouth water in the body 11, only need dismantle bottle lid 12, relief valve 3, three-way valve 4 and inhale saliva pipe 5 all connect at bottle lid 12 simultaneously, can once only dismantle the body 11 simultaneously with other parts outside the body 11 from the body 11, be convenient for empty body 11 and pour out the mouth water. The bottle body 11 can be a glass bottle, so that on one hand, the hydrops condition in the bottle body 11 can be conveniently observed, and on the other hand, the bottle body is conveniently washed.

The gas joint 13 comprises a first segment 131 and a second segment 132. The first section 131 extends vertically, and the lower end of the first section 131 is connected to the bottle cap 12. The second section 132 extends in a lateral direction, and a first end of the second section 132 communicates with an upper end of the first section 131. The needle cylinder 2 extends in the lateral direction and is inserted into the second section 132 from the second end of the second section 132. The first segment 131 and the second segment 132 of the air connector 13 are used for switching the needle cylinder 2, so that the needle cylinder 2 can be transversely placed, and the needle cylinder 2 can be conveniently operated.

The second section 132 includes a reduced diameter section 1321 and an expanded diameter section 1322. The first end of the reduced diameter section 1321 communicates with the upper end of the first section 131. The first end of the expanded diameter section 1322 communicates with the second end of the reduced diameter section 1321, and the inner diameter of the expanded diameter section 1322 is larger than the inner diameter of the reduced diameter section 1321, so that a step 1323 is formed between the expanded diameter section 1322 and the reduced diameter section 1321. The cylinder 2 is inserted into the expanded diameter section 1322 from the second end of the expanded diameter section 1322 and abuts against the step 1323. The insertion depth of the needle cylinder 2 is limited by the step 1323, so that the air outlet of the needle cylinder 2 can keep a distance from the inner wall of the first section 131, and the air exchange between the needle cylinder 2 and the air connector 13 is ensured to be smoother.

The mouth water collector also comprises a sealing ring 9, a sealing groove is arranged in the expanding section 1322, the sealing ring 9 is arranged in the sealing groove and is used for sealing the syringe 2, so that the connection tightness between the syringe 2 and the gas connector 13 is ensured, and gas leakage is avoided.

The seal ring 9 is a Y-shaped seal ring, and the opening of the Y-shaped seal ring faces the first end of the expanding segment 1322. When the needle cylinder 2 is inserted into the expanding section 1322 from the second end of the expanding section 1322, the outer wall of the needle cylinder 2 contacts and compresses the Y-shaped sealing ring, so that the opening of the Y-shaped sealing ring is reduced, the Y-shaped sealing ring has a trend of driving the opening to recover and increase under the action of self elastic force, therefore, the Y-shaped sealing ring can be tightly attached to the outer wall of the needle cylinder 2, the connection tightness between the needle cylinder 2 and the expanding section 1322 is improved, and air leakage is better avoided.

The bottle cap 12 is screwed on the bottle body 11, and a sealing ring is arranged between the bottle cap 12 and the bottle body 11. The sealing ring improves the connection tightness between the bottle cap 12 and the bottle body 11, and can avoid leakage of liquid while avoiding air leakage.

The mouth water collector further comprises a one-way valve 6. A one-way valve 6 is provided on the saliva suction tube 5, the one-way valve 6 being configured to allow saliva to flow from the fluid inlet end to the fluid outlet end of the saliva suction tube 5 and to prevent saliva from flowing from the fluid outlet end to the fluid inlet end of the saliva suction tube 5. The one-way valve 6 can prevent the saliva in the saliva suction tube 5 from flowing back into the mouth.

In particular, when the cylinder 2 is filled with gas faster into the collection bottle 1 and the discharge amount of the pressure release valve 3 is insufficient, the check valve 6 prevents the problem that the air pressure in the collection bottle 1 is increased due to insufficient discharge, so that the mouth water flows back to the mouth.

The saliva suction tube 5 comprises a front section 51 and a rear section 52. The liquid outlet end of the front section 51 is communicated with the first port of the one-way valve 6 and is detachably connected with the first port. The liquid inlet end of the rear section 52 is communicated with the second port of the one-way valve 6, and the liquid outlet end of the rear section 52 is communicated with the first interface. The one-way valve 6 is configured to allow saliva to flow from the first port to the second port and to prevent saliva from flowing from the second port to the first port.

The liquid inlet end of the front section 51 can be placed in the oral cavity, saliva in the oral cavity flows into the front section 51 from the liquid inlet end of the front section 51, then flows into the one-way valve 6 from the liquid outlet end and the first port of the front section 51, the one-way valve 6 allows the saliva to flow from the first port to the second port, then the saliva enters the rear section 52 from the liquid inlet end of the rear section 52, and flows into the first port from the liquid outlet end of the rear section 52.

The front section 51 arranged between the check valves 6 is closest to the oral cavity and is easy to be blocked, so that the liquid outlet end of the front section 51 is detachably connected with the first port, the front section 51 can be cleaned or replaced by a new front section 51 after being detached, and the rear section 52 can be cleaned or replaced without cleaning or replacement, thereby reducing the use cost.

Referring to fig. 3, and referring to fig. 1, the liquid inlet connector 14 has a tapered tubular structure with a narrow top and a wide bottom, the water inlet collector further includes a communicating pipe 10, a liquid inlet end of the communicating pipe 10 is connected to the second connector, and a liquid outlet end of the communicating pipe 10 is detachably sleeved on the liquid inlet connector 14 and is connected to the liquid inlet connector 14.

Saliva in the oral cavity sequentially passes through the front section 51, the one-way valve 6, the rear section 52, the three-way valve 4 and the communicating pipe 10 and then enters the collecting bottle 1. Because the liquid inlet joint 14 is of a taper pipe-shaped structure with a narrow upper part and a wide lower part, communicating pipes 10 with different pipe diameters can be sleeved on the liquid inlet joint 14 within a certain range, the use universality of the liquid inlet joint 14 on connecting pipes connected with the liquid inlet joint is improved, the purpose is that in special occasions, the saliva suction pipe 5, the one-way valve 6, the three-way valve 4 and the communicating pipes 10 can be detached and replaced by other connecting pipes, only the liquid outlet ends of the connecting pipes are sleeved on the liquid inlet joint 14, the liquid inlet ends of the connecting pipes can be directly placed in an oral cavity for saliva suction, and the connecting pipes with different pipe diameters within a certain range can be used, so that the use scene is enriched.

The mouth water collector also comprises a lifting lug 7, and the lifting lug 7 is fixedly connected with the one-way valve 6. The lifting lug 7 is used for being hung on a hanging frame beside a sickbed.

It is worth mentioning that lug 7 fixed connection is in rigid check valve 6, and is not connected in flexible saliva suction tube 5, avoids lug 7 to collude when hanging on the stores pylon and leads to the saliva suction tube 5 buckling deformation, reduces the problem of saliva suction tube 5 through-flow sectional area.

The mouth water collector also comprises a plug part 8, and a plurality of liquid inlets are uniformly distributed on the plug part 8. The plug part 8 is used for detachably sleeving the liquid inlet end of the saliva suction tube 5. When the liquid inlet end of the saliva suction pipe 5 is sleeved with the plug part 8, the liquid inlets are communicated with the liquid inlet end of the saliva suction pipe 5, the caliber of the liquid inlet is smaller than that of the liquid inlet end of the saliva suction pipe 5, oral water in an oral cavity enters the liquid inlet end of the saliva suction pipe 5 through the liquid inlets, and food residues in the oral cavity can be blocked from entering the saliva suction pipe 5 due to the smaller caliber of the liquid inlet, so that the saliva suction pipe 5 is prevented from being blocked. The plug part 8 can be detached from the liquid inlet end of the saliva suction tube 5 so as to be convenient for cleaning.

While the utility model has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present utility model may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. An oral water collector, comprising:

a collection bottle having a gas connector and a liquid inlet connector;

The needle cylinder is communicated with the gas connector and is used for extracting gas in the collecting bottle or filling gas into the collecting bottle;

A pressure relief valve provided to the collection bottle, the pressure relief valve configured to allow gas to flow from the collection bottle to the outside and to prevent gas from flowing from the outside to the collection bottle;

The three-way valve is provided with a first interface, a second interface and a third interface, and comprises a switching piece, wherein the switching piece enables the first interface to be communicated with the second interface or enables the first interface to be communicated with the third interface, and the second interface is communicated with the liquid inlet joint;

And the liquid outlet end of the saliva suction pipe is communicated with the first interface.

2. The water collector of claim 1 wherein the collection bottle comprises a body and a cap removably secured to the body;

The bottle cap is provided with the gas connector and the liquid inlet connector, and the pressure relief valve is arranged on the bottle cap.

3. The water outlet collector of claim 2 wherein said gas fitting comprises a first section and a second section;

The first section extends vertically, and the lower end of the first section is connected with the bottle cap;

the second section extends transversely, and the first end of the second section is communicated with the upper end of the first section;

the needle cylinder extends in a transverse direction and is inserted into the second section from the second end of the second section.

4. A mouthpiece collector according to claim 3, wherein the second section comprises a reduced diameter section and an enlarged diameter section;

the first end of the diameter-reducing section is communicated with the upper end of the first section;

The first end of the expanding section is communicated with the second end of the reducing section, and the inner diameter of the expanding section is larger than that of the reducing section, so that a step is formed between the expanding section and the reducing section;

the needle cylinder is inserted into the expanding section from the second end of the expanding section and is propped against the step.

5. The oral water collector of claim 4 further comprising a seal ring;

A sealing groove is arranged in the expanding section;

The sealing ring is arranged in the sealing groove and is used for sealing the needle cylinder.

6. The water collector of claim 5 wherein the seal is a Y-seal and the opening of the Y-seal is toward the first end of the enlarged diameter section.

7. The oral water collector of claim 1 further comprising a one-way valve;

The one-way valve is arranged on the saliva suction tube and is configured to allow saliva to flow from the liquid inlet end to the liquid outlet end of the saliva suction tube and prevent saliva from flowing from the liquid outlet end to the liquid inlet end of the saliva suction tube.

8. The oral water collector of claim 7 wherein said saliva suction tube comprises a front section and a rear section;

The liquid outlet end of the front section is communicated with the first port of the one-way valve and is detachably connected with the first port;

The liquid inlet end of the rear section is communicated with the second port of the one-way valve, and the liquid outlet end of the rear section is communicated with the first interface;

The one-way valve is configured to allow saliva to flow from the first port to the second port and to prevent saliva from flowing from the second port to the first port;

The liquid inlet connector is in a conical tubular structure with a narrow upper part and a wide lower part;

The mouth water collector also comprises a communicating pipe, the liquid inlet end of the communicating pipe is communicated with the second joint, and the liquid outlet end of the communicating pipe is detachably sleeved on the liquid inlet joint and is communicated with the liquid inlet joint.

9. The water collector of claim 7 further comprising a lifting tab, and wherein the lifting tab is fixedly connected to the one-way valve.

10. The mouthpiece collector of claim 1, further comprising a plug portion;

The plug part is used for detachably sleeving the liquid inlet end of the saliva suction tube, and a plurality of liquid inlets communicated with the liquid inlet end are uniformly distributed on the plug part.