CN220513204U - Double-layer sputum aspirator - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, in particular to a double-layer sputum suction tube which comprises an inner tube, an outer tube, a connecting tube and a switch assembly, wherein the outer tube is sleeved outside the inner tube, the connecting tube is communicated with one end of the outer tube, a first through hole is formed in the outer side wall of the connecting tube, and the switch assembly is arranged in the first through hole. One end of the outer tube, which is far away from the connecting tube, is provided with a sieve pore area, and one end of the inner tube, which is far away from the connecting tube, is provided with a plurality of second through holes. When the sputum aspirator is used, the double-layer sputum aspirator is connected with the negative pressure aspirator through the connecting pipe, medical staff places the inner pipe and the outer pipe into the tracheal catheter or the oral cavity of a patient, the switch assembly is closed, so that the first through hole is closed, the second through hole generates negative pressure to attract liquid such as sputum, and aerosol generated during cough or sputum aspiration of the patient can be discharged along the double-layer sputum aspirator along with expiration of the patient, and the negative pressure generated in the sieve pore area of the outer pipe can absorb the aerosol again, so that the pollution of the aerosol to clinical environment is avoided, and the sputum aspirator has higher safety.

Description

A double-layer sputum suction tube

Technical field

The utility model relates to the technical field of medical equipment, in particular to a double-layer sputum suction tube.

Background technique

Sputum suction refers to a method of sucking out secretions from the respiratory tract through the oral and nasal cavity and artificial airway to keep the respiratory tract open and prevent aspiration pneumonia, atelectasis, suffocation and other complications. For patients with anesthesia and intubation, routine sputum suctioning is generally performed before extubation after surgery to ensure that there is no sputum obstruction after extubation and to ensure normal lung ventilation. For this operation, a simple single-lumen sputum suction tube is conventionally used. The head end of the sputum suction tube is connected to a negative pressure suction device, and the tail end is inserted into the patient's endotracheal tube for sputum suction.

However, during the use of existing sputum suction tubes, the stimulation of sputum suction causes patients to cough, and the aerosols generated by the cough cause contamination to clinical patients, especially infectious diseases spread through droplets, which has a negative impact on the environment and medical staff. Come with great risk.

Utility model content

Based on this, the utility model provides a double-layer sputum suction tube with higher safety.

The technical solution of the present invention is: a double-layer sputum suction tube, which includes an inner tube, an outer tube, a connecting tube and a switch assembly. The outer tube is sleeved on the outside of the inner tube, and the connecting tube is connected to the outer tube. One end of the pipe is connected, a first through hole is opened on the outer wall of the connecting pipe, and the switch assembly is installed in the first through hole;

The end of the outer tube away from the connecting pipe is provided with a mesh area composed of mesh holes, and the end of the inner pipe away from the connecting pipe is provided with a plurality of second through holes.

Optionally, a plurality of first connecting straps are also included, and the inner tube and the outer tube are connected through the first connecting straps.

Optionally, at least three first connecting straps are provided to form a connecting strap group, and multiple first connecting straps in the same connecting strap group are evenly distributed along the second direction of the inner tube. Multiple groups of the connecting straps The band sets are evenly distributed along the first direction of the inner tube.

Optionally, the switch assembly includes a base, a second connection strap and a switch member. The base is installed on the first through hole, and the base is provided with a second through hole connected to the first through hole. , the base and the switch member are connected through the second connecting strap, and the switch member covers/opens the second through hole.

Optionally, there is an interference fit between the switch component and the base.

Optionally, the inner diameter of the connecting tube gradually becomes smaller from an end close to the outer tube to an end far away from the outer tube.

Optionally, the connecting pipe further includes a plurality of barbs, and the barbs are distributed along the first direction of the connecting pipe.

Optionally, the length of the inner tube is greater than the length of the outer tube.

Implementing the embodiments of the present utility model has the following beneficial effects compared with the prior art:

When using the double-layer sputum suction tube of the utility model, the double-layer sputum suction tube is connected to the negative pressure suction device through a connecting tube. For patients who require ventilator support for sputum suction treatment, medical staff connect the inner tube and the outer tube. Insert it into the patient's endotracheal tube or mouth, close the switch assembly to close the first through hole, and the second through hole generates negative pressure to suck sputum and other liquids. The aerosol generated when the patient coughs or suctions sputum will follow the patient's exhalation. When discharged along the double-layer sputum suction tube, the negative pressure generated by the sieve area of the outer tube will adsorb these aerosols again, avoiding aerosol contamination of the clinical environment, thus providing higher safety.

Description of drawings

Figure 1 is a schematic structural diagram of a double-layer sputum suction tube from a first perspective according to an embodiment of the present invention.

Figure 2 is a schematic structural diagram of the pressure relief component of the double-layer sputum suction tube according to the embodiment of the present invention from a second perspective.

Explanation of reference symbols:

100. Double-layer sputum suction tube,

1. Inner tube, 11. Second through hole,

2. Outer tube, 21. Sieve hole area,

3. Connecting pipe, 31. First through hole, 32. Barb,

4. Switch component, 41. Base, 42. Second connecting belt, 43. Switch piece,

5. The first connecting belt.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "back", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention. The novel and simplified description does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

In addition, the terms "first", "second", etc. are used in the present invention to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be called "second" information, and similarly, "second" information may also be called "first" information.

Referring to Figure 1, this embodiment provides a double-layer sputum suction tube 100, which includes an inner tube 1, an outer tube 2, a connecting tube 3 and a switch assembly 4. The outer tube 2 is sleeved outside the inner tube 1, and the connecting tube 3 is connected to the outer tube 1. One end of the pipe 2 is connected, a first through hole 31 is opened on the outer wall of the connecting pipe 3, and the switch assembly 4 is installed in the first through hole 31. The end of the outer tube 2 away from the connecting pipe 3 is provided with a mesh area 21 composed of mesh holes, and the end of the inner pipe 1 away from the connecting pipe 3 is provided with a plurality of second through holes 11 . When in use, the double-layer sputum suction tube 100 is connected to the negative pressure suction device through the connecting tube 3. For patients who require ventilator support for sputum suction treatment, medical staff insert the inner tube 1 and the outer tube 2 into the patient's endotracheal tube or In the oral cavity, closing the switch assembly 4 causes the first through hole 31 to close, and the second through hole 11 generates negative pressure to attract liquids such as sputum. The aerosol generated when the patient coughs or suctions sputum will move along the cavity as the patient exhales. When the double-layer sputum suction tube 100 is discharged, the negative pressure generated by the sieve hole area 21 of the outer tube 2 will adsorb these aerosols again, thus avoiding the contamination of the clinical environment by aerosols, thereby achieving higher safety.

Preferably, referring to FIG. 1 , in this embodiment, the double-layer sputum suction tube 100 further includes a plurality of first connecting belts 5 , and the inner tube 1 and the outer tube 2 are connected through the first connecting belts 5 . The inner tube 1 and the outer tube 2 are connected through the first connecting belt 5, which plays the role of supporting the outer tube 2 and fixing the inner tube 1.

Preferably, referring to Figures 1 and 2, in this embodiment, at least three first connecting straps 5 are provided to form a connecting strap group, and multiple first connecting straps 5 of the same connecting strap group are arranged along the first connecting strap 5 of the inner tube 1. The two directions are evenly distributed, and the plurality of connecting belt groups are evenly distributed along the first direction of the inner tube 1 . Preferably, in this embodiment, the first connecting belt 5 is an elastic member, and a connecting belt group includes four first connecting belts 5 .

Preferably, referring to Figure 1, in this embodiment, the switch assembly 4 includes a base 41, a second connecting band 42 and a switch member 43. The base 41 is installed in the first through hole 31, and the base 41 is provided with a first through hole. The second through hole 11 connected with the hole 31, the base 41 and the switch member 43 are connected through a second connecting belt 42, and the switch member 43 covers/opens the second through hole 11. Specifically, in this embodiment, there is an interference fit between the switch member 43 and the base 41 . Preferably, in this embodiment, the base 41 and the switch member 43 are elastic members, and the interference fit between the switch member 43 and the base 41 ensures the overall airtightness.

Preferably, referring to FIG. 1 , in this embodiment, the inner diameter of the connecting pipe 3 gradually becomes smaller from the end close to the outer pipe 2 to the end far away from the outer pipe 2 . The connecting tube 3 can be fully connected to the negative pressure suction device and connected to breathing tubes of various specifications.

Preferably, referring to FIG. 1 , in this embodiment, the connecting pipe 3 further includes a plurality of barbs 32 , and the barbs 32 are distributed along the first direction of the connecting pipe 3 . The barbs 32 can prevent the double-layer sputum suction tube 100 from falling off from the negative pressure suction device and enhance sealing.

Preferably, referring to Figure 1, in this embodiment, the length of the inner tube 1 is greater than the length of the outer tube 2. This allows the inner tube 1 to fully extend into the patient's tracheal tube or oral cavity.

The double-layer sputum suction tube 100 of this embodiment has the following beneficial effects:

1. When in use, connect the double-layer sputum suction tube 100 to the negative pressure suction device through the connecting tube 3. For patients who require ventilator support for sputum suction treatment, medical staff will insert the inner tube 1 and the outer tube 2 into the patient's trachea. In the catheter or the oral cavity, closing the switch assembly 4 causes the first through hole 31 to close, and the second through hole 11 generates negative pressure to attract liquids such as sputum. The aerosol generated when the patient coughs or suctions sputum will move along the tube when the patient exhales. As the double-layer sputum suction tube 100 is discharged, the negative pressure generated by the sieve hole area 21 of the outer tube 2 will adsorb these aerosols again, thereby avoiding aerosol contamination of the clinical environment, thereby achieving higher safety.

2. Connect the inner tube 1 and the outer tube 2 through the first connecting belt 5 to support the outer tube 2 and fix the inner tube 1.

3. The barbs 32 can prevent the double-layer sputum suction tube 100 from falling off from the pipeline of the negative pressure suction device.

The above is the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and deformations can be made without departing from the principles of the present utility model. These improvements and deformations can It is also regarded as the protection scope of the present utility model.

Claims (8)

1. The double-layer sputum aspirator is characterized by comprising an inner tube, an outer tube, a connecting tube and a switch assembly, wherein the outer tube is sleeved outside the inner tube, the connecting tube is communicated with one end of the outer tube, a first through hole is formed in the outer side wall of the connecting tube, and the switch assembly is arranged in the first through hole;

the outer tube is kept away from the one end of connecting pipe is equipped with the sieve mesh district that comprises the sieve mesh, the inner tube is kept away from a plurality of second through-hole has been seted up to the one end of connecting pipe.

2. The double-layered sputum aspirator tube according to claim 1, further comprising a plurality of first connection bands, the inner tube and the outer tube being connected by the first connection bands.

3. The double-layer sputum aspirator tube according to claim 2, wherein at least three first connecting bands are provided to form one connecting band group, a plurality of first connecting bands of the same connecting band group are uniformly distributed along the second direction of the inner tube, and a plurality of groups of connecting band groups are uniformly distributed along the first direction of the inner tube.

4. The double-layer sputum aspirator according to claim 1, wherein the switch assembly comprises a base, a second connecting band and a switch member, the base is mounted on the first through hole, a second through hole communicated with the first through hole is formed in the base, the base and the switch member are connected through the second connecting band, and the switch member covers/opens the second through hole.

5. The double-layer sputum aspirator tube of claim 4, wherein the switch element is an interference fit with the base.

6. The double-layered sputum aspirator tube according to claim 1, wherein the connecting tube has an inner diameter gradually decreasing from an end near the outer tube to an end far from the outer tube.

7. The double-layered sputum aspirator tube of claim 6, wherein the connecting tube further comprises a plurality of barbs, the barbs being distributed along a first direction of the connecting tube.

8. The double-layered sputum aspirator tube of claim 1, wherein the length of the inner tube is greater than the length of the outer tube.