CN211610934U - Portable combined sputum aspirator - Google Patents

Abstract

The utility model belongs to a sputum suction device, in particular to a portable combined sputum aspirator, which comprises a sputum storage bottle and a negative pressure sputum aspirator, wherein the top of the sputum storage bottle is provided with a negative pressure pipe and a sputum suction pipe; the sliding contact component comprises a first contact, a first spring, a second contact, a supporting rod and a support; a support rod is fixedly arranged on the support, a first spring is sleeved on the support rod, and a second contact is sleeved on the outer wall of the first spring; the first contact is sleeved on the supporting rod and is connected with the first spring; the second contact is fixedly arranged on the end face of the air inlet of the negative pressure tube, and the support is arranged on a sliding guide piece arranged in the negative pressure tube in a sliding manner; the first contact and the second contact are respectively and electrically connected with a power-off controller arranged in the negative pressure sputum suction machine. The utility model has the characteristics of can realize automatic shutdown negative pressure sputum aspirator, protect patient's trachea mucosa to avoid damage etc.

Description

Portable combined sputum aspirator

Technical Field

The utility model relates to a sputum suction device, in particular to a portable combined sputum aspirator for sucking sputum in oral cavity.

Background

The existing sputum storage bottle consists of a sputum suction tube, a suction tube and a suction bottle, and the sputum suction bottle is connected with a vacuumized negative pressure sputum suction machine to form a sputum suction system, which is widely used in clinic and is used for sucking sputum for critically ill patients with dyspnea or for the respiratory tract infection patients needing sputum suction for testing so as to know the illness state of the patients.

And patient's sputum is generally comparatively thick, and when inhaling phlegm, inhale the phlegm pipe and have the condition emergence of being blocked, when the jam takes place, still continue to inhale the phlegm, the negative pressure increase this moment, in case inhale the phlegm pipe by the back of dredging suddenly, great negative pressure can cause the injury to patient's trachea mucous membrane. The negative pressure of the sputum suction machine to the sputum storage bottle can not be stopped.

When still needing to inhale the phlegm chemical examination to some diseases, the sputum of absorbing is comparatively thick, inhales the phlegm or send the phlegm chemical examination in-process, carelessly makes the sputum touch and stores up the sputum inner wall, because of the sputum viscidity is stronger, is difficult for following inner wall landing to storing up the sputum bottom, and this both causes the volume that can't the accuracy read the sputum of will absorbing, consumes more time and waits the sputum freely to fall back again.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the defects of the prior art and provides a portable combined sputum aspirator which can realize the automatic shutdown of a negative pressure sputum aspirator and can adsorb the sputum in the inner wall of a sputum storage bottle which falls down rapidly.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:

a portable combined sputum aspirator mainly comprises a sputum storage bottle and a negative pressure sputum aspirator, wherein the top of the sputum storage bottle is provided with a negative pressure tube and a sputum suction tube, and the sputum storage bottle is assembled by a lower protective cover, an upper protective cover and a bottle body; the upper protective cover is provided with a sliding guide piece penetrating through the upper protective cover, and a sliding blocking piece is arranged in the sliding guide piece; the negative pressure pipe comprises a negative pressure pipe I and a negative pressure pipe II; the negative pressure pipe I and the negative pressure pipe II are respectively nested at two ends of the sliding guide piece, and the negative pressure pipe II is connected with a negative pressure sputum suction machine; the negative pressure tube I is inserted into the sputum storage bottle, and a sliding contact component is arranged in the end tube; the sliding contact component comprises a first contact, a first spring, a second contact, a supporting rod and a support; a support rod is fixedly installed on the support, a first spring is sleeved on the support rod, and a second contact is sleeved on the outer wall of the first spring; the first contact is sleeved on the supporting rod and is connected with the first spring; the second contact is fixedly arranged on the end face of the air inlet of the negative pressure tube I, and the support is arranged on the sliding guide piece in a sliding mode; the first contact and the second contact are respectively and electrically connected with a power-off controller arranged in the negative pressure sputum suction machine; and the power-off controller shuts down the negative pressure sputum suction machine to suck pressure when the first contact and the second contact are in collision contact. In order to be convenient to carry, the negative pressure sputum aspirator can be designed as a weak current negative pressure sputum aspirator.

The power-off controller immediately stops the pressure suction work of the negative pressure sputum suction machine by the collision contact induction of the first contact and the second contact and transmitting an induction signal to the power-off controller. The precondition that the first contact and the second contact are in collision contact is that the sputum suction pipe is blocked, negative pressure in the sputum storage bottle is larger than safe negative pressure required by sputum suction due to the blockage of the sputum suction pipe, at the moment, the sputum suction pipe has no air flow to enter the sputum storage bottle, the original air flow dynamic balance between the negative pressure pipe and the sputum suction pipe is destroyed under the action of the sputum suction negative pressure machine in the sputum storage bottle, air pressure in the sputum storage bottle is concentrated to act on an air inlet pipe opening of the negative pressure pipe, the first contact is positioned near an air inlet pipe opening, the first contact is forced to instantly slide towards the second contact under the action of the pressure and is in collision connection, and the power-off controller immediately shuts off the negative pressure sputum suction machine. Thereby avoid storing up the interior negative pressure of sputum flask and further increase, and then reach the purpose of safe handling, can effectively protect the patient to avoid suffering the damage.

As a further improvement, the sliding guide part is provided with a first sliding chute and a second sliding chute which protrude outwards on the side wall, and the notches of the first sliding chute and the second sliding chute are aligned with each other. Smooth sliding of the seats on them can be facilitated.

As a further improvement of the present invention, the sliding blocking member includes a handle, a screw, a sealing ring, a nut, and a blocking member; the screw rod penetrates through the sealing ferrule and the nut and is connected with the blocking piece, and the other end of the screw rod is provided with a handle; the sealing ring and the nut are fixedly arranged on the sliding guide piece, and two ends of the blocking piece are respectively connected in the first sliding groove and the second sliding groove in a sliding mode. Through the matching connection of the screw rod and the nut, the position of the sliding blocking piece in the sliding guide piece can be adjusted, and the position of the sliding blocking piece on the sliding guide piece can be adjusted according to different negative pressures. The sliding blocking piece has a limiting function on the support sliding on the sliding guide piece. The sliding blocking part is used for debugging the position of the sliding blocking part on the sliding guide part according to the selected safe negative pressure; the sliding blocking piece after being debugged and fixed can realize effective limitation on the support, and can keep a reasonable and safe interval between the first contact and the second contact fixedly arranged on the end face of the air inlet pipe orifice of the negative pressure pipe I, so that the normal work of the sputum storage bottle can be ensured. The sliding block piece is hermetically connected with the side wall of the sliding guide piece, so that air leakage of the sliding block piece during sliding can be effectively prevented.

As a further improvement of the utility model, the screw rod passes through antifriction bearing and blocks piece fixed connection. The rolling bearing enables the screw rod to rotate on the blocking piece without resistance, and the screw rod is tightly connected with the rolling bearing.

As a further improvement of the utility model, a sliding connection is arranged between the first contact and the support rod. First contact is the disc shape, for the convenience with bracing piece sliding connection, sets up the through-hole in its center, and be airtight connection between this through-hole outer wall and the first contact outward flange, can be favorable to first contact comparatively balanced when receiving atmospheric pressure effect.

As a further improvement of the utility model, the upper protection cover is provided with a pressure release valve. The pressure release valve can restore the sputum storage bottle to normal pressure. The pressure release valve is in a closed state when the sputum storage bottle works, and when the pressure in the sputum storage bottle needs to be released, the pressure release valve can be subjected to pressure release operation.

As a further improvement of the utility model, the upper protective cover of the sputum storage bottle further comprises a sputum scraping component which is arranged and installed on the upper protective cover of the sputum storage bottle and comprises a push rod, a sleeve, a second spring, a sealing ring and a sputum scraping piece; the second spring sets up in the sleeve, sleeve bottom fixed mounting has the sealing washer, the push rod runs through second spring, sealing washer in proper order from the sleeve top and is connected with scraping phlegm spare, and the connection of second spring top is fixed in on the push rod lateral wall. Through scraping the effect of phlegm component, can scrape the sputum that adsorbs on storing up the sputum inner wall and fall to storing up in the cavity of sputum flask.

As a further improvement of the utility model, sealing connection between sealing washer and the push rod. Can be favorable for keeping good sealing property in the sputum storage bottle.

As a further improvement of the utility model, the sputum scraping piece comprises a scraping plate, a supporting seat and an inclined strut, and the supporting seat and the scraping plate are connected through the inclined strut. The scraper blade is cavity circular cone shape, and its lateral wall upwards contracts toward the center promptly, is the tilt state with vertical direction, can do benefit to the scraper blade and will adsorb the sputum that stores up on the sputum flask inner wall and scrape off.

The utility model discloses a theory of operation:

connecting a negative pressure pipe on the sputum storage bottle with a negative pressure sputum suction machine, wherein a support is arranged at the end part of the negative pressure pipe in the sputum storage bottle, one end of a support rod is fixedly installed on the support, and the other end of the support rod extends out of a pipe orifice, sequentially penetrates through a first spring and a second contact downwards and is then in sliding connection with the first contact; then the sputum suction pipe is stretched into the oral cavity of the patient, and a negative pressure sputum suction machine is started to suck the sputum; in the sputum suction process, when the sputum suction pipe is completely filled with sputum, the sputum suction pipe is blocked, the sputum suction pipe cannot suck airflow from the oral cavity, so that the negative pressure sputum suction machine vacuumizes the sputum storage bottle in a closed state, and the negative pressure in the sputum storage bottle is increased and is greater than a safe negative pressure value; at the moment, the first contact is subjected to a larger upward pushing force, under the action of the pushing force, the first contact pushes a first spring upwards, the first spring pushes the support to slide upwards along the inside of the sliding guide piece to the top end of the sliding guide piece, and the top end of the sliding guide piece supports and limits the support; the first contact extrudes the first spring to slide upwards under the action of the pushing force only until the first spring collides and contacts with the second contact; the signal generated by the collision contact is instantly transmitted to the power-off controller, the power-off controller is instantly started, and the negative pressure sputum aspirator is shut down. The negative pressure of the negative pressure sputum suction machine to the sputum storage bottle can be avoided; thereby avoiding the harm of the stronger negative pressure generated in the sputum suction pipe to the tracheal mucosa of the patient when the sputum suction is changed from the blocking state to the dredging state. Realizing automatic shutdown and protection. After the blocked sputum suction tube is dredged, the first spring in the sputum storage bottle resets under the action of elastic deformation force, and the first contact and the second contact are separated.

The sputum scraping operation is as follows:

the sputum scraping component is arranged on the upper protective cover of the sputum storage bottle, and the parts are connected as follows: the sleeve penetrates through the upper protective cover above the sputum storage bottle and is fixedly connected with the upper protective cover in a sealing manner; a second spring is arranged in the sleeve, and a sealing ring is arranged at the bottom of the sleeve; the push rod penetrates through the second spring and the sealing ring from the top of the sleeve in sequence and then is connected with the sputum scraping piece, and the top of the second spring is connected with the push rod; when the push rod moves downwards, the scraper blade is driven to slide downwards along the inner wall of the sputum storage bottle, and sputum adsorbed on the inner wall of the sputum storage bottle is scraped into the cavity of the sputum storage bottle by the scraper blade in the sliding process; the purpose of scraping the sputum is achieved; when the push rod moves downwards, the top of the second spring is driven to extrude downwards, so that the second spring is elastically deformed downwards; when the external force of the push rod is eliminated, the push rod moves upwards in a reset mode under the action of the elastic force of the second spring, and therefore the scraper is driven to upwards reset.

Compared with the prior art, the utility model, the progress that gains:

1. the utility model discloses a first contact, second contact, outage controller and negative pressure are inhaled and are carried out the electricity and connect between the phlegm machine, form and inhale the circuit control that the phlegm machine realized the shutdown function to the negative pressure. When the sputum suction pipe is blocked, the negative pressure sputum suction machine can be stopped in time. Avoid the negative pressure sputum aspirator to produce too big negative pressure to storing up the sputum flask. Improve the use safety and protect the tracheal mucosa of the patient from being damaged.

2. The utility model discloses still set up in storing up the sputum bottle and scrape the phlegm component, scrape the phlegm component and can scrape the sputum that adheres to in storing up the sputum bottle inner wall to the bottle bottom and fall, especially when needing to inhale the phlegm sample chemical examination, if inhale the phlegm process, carelessly make the sputum bump to the bottle inner wall, and the sputum is comparatively thick, and it adsorbs in the lateral wall more steadily, lets its free landing comparatively consuming time, and this both prolongs the chemical examination required time, causes the volume of the sputum that absorbs inaccurate easily again. The sputum adsorbed on the side wall can relatively quickly slide to the bottom under the action of the sputum scraping component, so that the accuracy of the required sampling amount is improved, the required testing time can be shortened, and the time is strived for the treatment of patients.

3. The utility model adopts the scraper component to scrape the sputum attached on the inner wall of the sputum storage bottle into the cavity of the sputum storage bottle, the components of the sputum scraping component are connected in such a way that the sleeve penetrates through the protective cover at the top of the sputum storage bottle and is fixedly connected with the protective cover in a sealing way, the sleeve is internally provided with the second spring, and the bottom of the sleeve is provided with the sealing ring; the push rod penetrates through the second spring and the sealing ring from the top of the sleeve in sequence and then is connected with the sputum scraping piece, and the top of the second spring is connected with the push rod. The push rod drives the scraping plate to slide downwards, so that sputum adsorbed on the inner wall of the sputum storage bottle is scraped, and meanwhile, the second spring is elastically deformed downwards along with the push rod and has elastic deformation force; when the external force applied to the push rod is eliminated, the push rod moves upwards in a reset mode under the action of the second spring, and the scraper connected with the push rod also resets upwards along with the push rod.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of the portable combined sputum aspirator of the present invention;

FIG. 2 is a schematic view of the sputum flask of FIG. 1;

FIG. 3 is a schematic view of the structure of the sputum storage bottle with a pressure release valve;

fig. 4 is a schematic structural view of the sliding contact member;

FIG. 5 is a schematic view of the sliding block installed on the sliding guide;

FIG. 6 is a schematic view of the structure of the sliding barrier;

FIG. 7 is a schematic structural view of a sputum scraping member mounted on the sputum storage bottle;

FIG. 8 is a schematic view of the sputum adsorbed on the inner wall of the sputum bottle of FIG. 7;

FIG. 9 is a front view of the sputum scraping member of FIG. 7;

FIG. 10 is a left side view of the structure of FIG. 9;

FIG. 11 is a schematic top view of the structure of FIG. 9;

element names and serial numbers in the drawings: a lower protective cover-1, a sputum storage bottle-2, a support rod-3, a first contact-4, a first spring-5, a second contact-6, an upper protective cover-7 of a magnet-101, a slide guide-8, a first chute 81, a second chute 82, a negative pressure pipe-9, a negative pressure pipe I-91, a negative pressure pipe II-92, a support-10, a pressure release valve-11, a sputum suction pipe-12, a push rod-13, a sleeve-14, a second spring-15, a sputum scraping part-16, a scraping plate-161, a support seat-162, an inclined strut-163, a sealing ring-17, a power-off controller-18, a negative pressure sputum suction machine-19, a slide blocking part-20, a handle-201, a screw rod-202, a sealing ring-203, a nut-204, stop piece 205, sputum-21, bottle body-101.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Example 1: as shown in fig. 1 to 9, a portable combined sputum aspirator mainly comprises a sputum storage bottle 2 and a negative pressure sputum aspirator 19, wherein the top of the sputum storage bottle 2 is provided with a negative pressure tube 9 and a sputum suction tube 12, and the sputum storage bottle 2 is assembled by a lower protective cover 1, an upper protective cover 7 and a bottle body 101; the upper protective cover 7 is provided with a guide sliding piece 8 penetrating through the upper protective cover; the negative pressure pipe 9 comprises a negative pressure pipe I91 and a negative pressure pipe II 92; the negative pressure pipe I91 and the negative pressure pipe II 92 are respectively nested at two ends of the slide guide piece 8, and the negative pressure pipe II 92 is connected with the negative pressure sputum suction machine 19; the negative pressure tube I91 is inserted into the sputum storage bottle 2, and a sliding contact component is arranged in the end tube; the sliding contact component comprises a first contact 4, a first spring 5, a second contact 6, a support rod 3 and a support 10; a support rod 3 is fixedly installed on the support 10, a first spring 5 is sleeved on the support rod 3, and a second contact 6 is sleeved on the outer wall of the first spring 5; the first contact 4 is sleeved on the support rod 3 and is connected with the first spring 5; the second contact 6 is fixedly arranged on the end face of the air inlet of the negative pressure tube I91, and the support 10 is arranged on the slide guide piece 8 in a sliding manner; the first contact 4 and the second contact 6 are respectively and electrically connected with a power-off controller 18 arranged in a negative pressure sputum suction machine 19; the power-off controller 18 stops the suction pressure work of the negative pressure sputum suction machine 19 when the first contact 4 and the second contact 6 are in collision contact.

The side wall of the slide guide piece 8 is provided with a first sliding groove 81 and a second sliding groove 82 which protrude outwards, and the notches of the first sliding groove 81 and the second sliding groove 82 are aligned with each other. Two ends of the support 10 are respectively installed on the first sliding chute 81 and the second sliding chute 82, and can slide in the gap formed by the first sliding chute 81 and the second sliding chute 82 along the length direction; can facilitate the smooth sliding of the support 10 thereon

The sliding stopper 20 includes a handle 201, a screw 202, a sealing collar 203, a nut 204, and a stopper 205; the screw 202 penetrates through the sealing ferrule 203 and the nut 204 and is connected with the blocking piece 205, and the other end of the screw is provided with a handle 201; the sealing ferrule 203 and the nut 204 are both fixedly mounted on the slide guide 8, and two ends of the blocking member 205 are respectively connected in the first sliding groove 81 and the second sliding groove 82 in a sliding manner; the screw 202 is fixedly connected to the stopper 205 via a rolling bearing. Screw rod 202 and nut 204 threaded connection, through the handle 201 wrench movement rotation on the screw rod 202, can make screw rod 202 reciprocate in vertical direction, screw rod 202 threaded connection is on nut 204, can make the junction have good leakproofness, can effectively prevent gas leakage. In order to further enhance the tightness, the screw 202 is sleeved with a sealing ferrule 203, so that the tightness is effectively enhanced. The sealing collar 203 is fixedly mounted on the outwardly protruding sliding groove of the side wall of the slider guide 20 and is hermetically connected. The screw 202 is fixedly connected with the blocking piece 205 through a rolling bearing, and the connecting structure can realize the unhindered rotation of the screw 202 and the supporting and fixing effect of the screw 202 on the blocking piece 205.

A sliding barrier 20 is also arranged in the guide slide 8. The height of the carrier 10 sliding upward in the first and second slide grooves 81 and 82 is defined by the blocking member 205 on the sliding blocking member 20. The adjusting screw 202 drives the blocking piece 205 to move up and down in the first sliding groove 81 and the second sliding groove 82, and the blocking piece 205 is arranged at different positions of the sliding guide piece 8, so that the sputum suction device can meet different sputum suction negative pressure requirements.

When the sputum storage bottle 2 normally works, the negative pressure formed in the sputum storage bottle can act on the upward acting force of the first contact 4, under the action of the force, the first contact 4 pushes the first spring 5 upwards, the first spring 5 pushes the support 10 upwards, the support 10 slides upwards along the first sliding groove 81 and the second sliding groove 82, in order to avoid the normal working state, the first contact 4 collides with the second contact 6, the blocking piece 205 is used for blocking the support 10 to continuously move upwards, the first spring 5 is extruded upwards by the first contact 4 to generate elastic deformation, and the elastic deformation force of the first spring 5 is used for blocking the upward sliding of the first contact 4. So that the first contact 4 and the second contact 6 can be ensured to keep a reasonable and safe distance under the normal working state.

When the blockage occurs, the acting force is increased below the bottom of the first contact 4, so that the first contact 4 can slide upwards along the support rod 3 in time and is in collision connection with the second contact 6, and the power-off controller 18 is well controlled.

The first contact 4 is connected with the support rod 3 in a sliding manner. The first contact 4 can perform relative sliding on the support bar 3. When the bottom below of first contact 4 receives ascending exogenic action, first contact 4 when upwards sliding along bracing piece 3, can realize the squeezing action to first spring 5, and first spring 5 receives the extrusion to take place elastic deformation, has elastic deformation power. The first contact 4 is continuously acted by external force until the first contact 4 is in collision connection with the second contact 6; at this time, the first spring 5 has a large elastic deformation force, and after the external force applied to the first contact 4 is removed, the first contact 4 slides downward along the support rod 3 under the elastic deformation force of the first spring 5, and is separated from the connection with the second contact 6.

As shown in fig. 3, the upper protective cover 7 of the sputum storage bottle 2 is provided with a pressure release valve 11. The pressure release valve 11 is mounted on the upper protective cover 7, and the pressure release valve 11 is communicated with the cavity of the sputum storage bottle 2. The pressure release valve 11 can facilitate the release of the pressure in the sputum storage bottle 2, so that the sputum storage bottle 2 can recover the normal pressure state.

Go up and be threaded connection fixed between safety cover 7 and lower safety cover 1 and the bottle body 101, threaded connection can profitably improve the leakproofness between safety cover 7, lower safety cover 1 and the bottle body 101, can also easy to assemble and dismantle. Lower safety cover 1, last safety cover 7 can also play the guard action to storing up sputum flask 2, and body 201 is broken when preventing the collision.

The negative pressure values used for sputum aspiration are generally divided into two negative pressure values, as follows:

the negative pressure in the sputum storage bottle 2 is more than 53.3KPa, the first contact 4 is sucked to the second contact 6, and the power-off controller 18 turns off the negative pressure sputum suction machine 19. The negative pressure is below 53.3KPa, and the negative pressure section is suitable for adults. When the negative pressure is more than 53.3KPa, the patient is easily injured when sputum is sucked.

The negative pressure in the sputum storage bottle 2 is more than 40.0KPa, the first contact 4 is sucked to the second contact 6, and the power-off controller 18 turns off the negative pressure sputum suction machine 19. The negative pressure is below 40.0KPa, and the negative pressure section is suitable for children. When the negative pressure is more than 40.0KPa, the patient is easily injured when sputum is sucked.

Before use, the selected sputum suction negative pressure is tested to determine the position of the sliding block member 20 fixed to the slide guide member 8.

The specific implementation operation is as follows:

selecting safe negative pressure for sucking the sputum on the negative pressure sputum suction machine, and then debugging as follows:

(1) the pipe orifice of the sputum suction pipe 12 outside the sputum storage bottle 2 is sealed and blocked, the first contact 4 rises to collide with the second contact 6, the maximum rising height of the support 10 in the slide guide 8 is observed, and the height of the support 10 is marked;

(2) fixing the support 10 on the lowest end of the sliding chute of the sliding guide piece 8 by using the blocking piece 205 in the sliding blocking piece 20, hermetically sealing the opening of the sputum suction tube 12 outside the sputum storage bottle 2, observing and recording the maximum height of the first contact 4 rising along the support rod 3, namely the maximum elastic deformation compression amount which can be generated by the first spring 5 under the air pressure;

(3) finding a mark point of the maximum height of the support 10 lifted in the slide guide piece 8, and then measuring a distance downwards, wherein the distance is half of the maximum elastic deformation compression amount of the first spring 5;

(4) after the sliding blocking piece 20 is fixed on the sliding guide piece 8, the negative pressure sputum suction machine 19 is started, and the support 10 drives the whole body to slide to the blocking piece 205, so that the first contact 4 and the second contact 6 have a safety gap; the airtight blockage sputum suction pipe 12 is located at the pipe orifice outside the sputum storage bottle 2, the first contact 4 can slide upwards along the support rod 3 quickly and is connected with the second contact 6 in a collision mode, and the power-off controller 18 can achieve accurate and quick shutdown of the negative-pressure sputum suction machine 19.

The sputum aspirator of the utility model can be used for sputum aspiration after being adjusted.

The specific implementation mode is as follows: the negative pressure tube 9 and the sputum suction tube 12 are effectively sterilized, the sputum suction tube 12 is stretched into a proper position of the oral cavity of the patient, and the negative pressure sputum suction machine 19 is started to realize sputum suction work on the oral cavity of the patient; the sputum suction tube 12 conveys the sucked sputum to the sputum storage bottle 2. In the process of conveying the sputum in the sputum suction pipe 12, the amount of the sputum filled in the sputum suction pipe 12 is changed, when the cavity in the sputum suction pipe 12 is large, the passage for gas circulation becomes small, the negative pressure in the sputum storage bottle 2 is increased, the first contact 4 is under the action of the negative pressure, so that the first contact receives upward pushing force, and at the moment, the pushing force is not enough to enable the first spring 5 to elastically deform, so that under the action of the pushing force, the first contact 4 drives the first spring 5, the first spring 5 pushes the support 10 to slide upwards in the sliding guide piece 8 for a small amplitude and collide with the blocking piece 205, and the blocking piece 205 plays a limiting role; when the sputum in the sputum suction tube 12 fills the inner cavity of the tube and the air circulation channel is enlarged, the negative pressure pushes the first contact 4 to be enlarged; but does not reach the force required for the first spring 5 to elastically deform to the maximum, the first contact 4 presses the first spring 5 to elastically deform to a small extent. The first contact 4 and the second contact 6 still have a safe spacing. The normal work of the sputum storage bottle 2 is ensured.

When the sputum is completely filled in the sputum suction pipe 12, the sputum suction pipe 12 is blocked, the sputum suction pipe 12 cannot suck airflow from the oral cavity, and the negative pressure sputum suction machine 19 is caused to vacuumize the sputum storage bottle 2 in a closed state, so that the negative pressure in the sputum storage bottle 2 is increased and is greater than a safe negative pressure value; at this time, the support 10 is blocked by the blocking piece 205 to slide upwards, the first contact 4 is subjected to a large upwards pushing force, and under the action of the pushing force, the first contact 4 rapidly presses the first spring 5 upwards along the support rod 3 and collides with the second contact 6 to be contacted; the signal generated by the collision contact is instantaneously transmitted to the power-off controller 18, and the power-off controller 18 instantaneously starts to stop the negative pressure sputum aspirator 19. The negative pressure of the negative pressure sputum suction machine 19 to the sputum storage bottle 2 can be avoided; thereby avoiding the harm of the stronger negative pressure generated in the sputum suction pipe 12 to the tracheal mucosa of the patient when the sputum suction is changed from the blocking state to the dredging state. Realizing automatic shutdown and protection.

In order to dredge the blocked sputum suction tube 12 or replace the sputum suction tube 12, a pressure release valve 11 arranged on the upper protective cover 7 is controlled to release pressure, and after the pressure is released, the sputum storage bottle 2 is restored to the normal pressure state; the pushing force borne by the first contact 4 is eliminated, the first spring 5 pushes the first contact 4 downwards under the action of elastic deformation force to perform elastic reset, and the first contact 4 is separated from the second contact 6; the negative pressure sputum aspirator 19 is started to continue working.

As shown in fig. 5 to 9, in order to scrape the sputum adsorbed on the sidewall of the sputum storage bottle 2 off the cavity of the sputum storage bottle 2, a sputum scraping member is mounted on the upper protective cover 7 of the sputum storage bottle 2, and the sputum scraping member comprises a push rod 13, a sleeve 14, a second spring 15, a sealing ring 17 and a sputum scraping piece 16; the second spring 15 is arranged in the sleeve 14, a sealing ring 17 is fixedly mounted at the bottom of the sleeve 14, the push rod 13 penetrates through the second spring 15 and the sealing ring 17 from the top of the sleeve 14 in sequence and then is connected with the sputum scraping piece 16, and the top of the second spring 15 is connected and fixed on the side wall of the push rod 13.

In order to avoid air leakage of the sputum storage bottle 2 from the bottom of the sleeve 14, the sealing ring 17 is fixedly connected with the bottom of the sleeve 14 in a sealing mode, and when the push rod 13 slides relative to the sealing ring 17, the sealing ring 17 and the push rod 13 are good in sealing performance, so that sealing connection is achieved.

As shown in fig. 7 to 9, the sputum scraping member 16 comprises a scraper 161, a support 162 and a diagonal brace 163, wherein the support 162 and the scraper 161 are connected through the diagonal brace 163. The scraper 161 is a hollow cone structure, i.e. the side wall of the scraper is upwardly contracted and is inclined from the vertical direction, which can help the scraper 161 to scrape off the sputum 21 faster during the downward sliding process. When scraper blade 161 gliding, sputum 21 has rather than the ascending slip in opposite directions, can make sputum 21 be unsettled state, under sputum 21 self action of gravity, drops comparatively fast to storing up in the cavity of sputum 2, for sputum 21 freedom landing on the lateral wall of storing up sputum 2 more can save time. Can strive for valuable treatment time for the patient.

The surfaces of the scraper 161 and the diagonal bar 163 are each provided with a layer of liquid smoothing agent. The liquid lubricious agent layer can avoid scraper 161 from being adsorbed by sputum when scraping sputum on the sidewall. Ensure that the sputum scraped from the side wall can fall on the bottom of the sputum storage bottle 2.

The working mode of the sputum scraping component is as follows: the sleeve 14 is fixed on the top of the sputum storage bottle 2, a second spring 15 is arranged in the sleeve, and a sealing ring 17 with sealing function is arranged at the bottom of the sleeve; push rod 13 is extruded downwards, and push rod 13 drives second spring 15 and takes place extrusion formula elastic deformation, and push rod 13 drive is scraped phlegm piece 16 and is down moved, scrapes phlegm 16 downstream in-process, will adsorb the sputum that is on 2 inner walls of storage sputum flask and down scrape down.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (10)

1. The utility model provides a portable combination formula sputum aspirator, mainly installs negative pressure pipe (9) and inhales phlegm storage bottle (2) and negative pressure sputum suction machine (19) combination of phlegm pipe (12) by the top and forms its characterized in that:

the sputum storage bottle (2) is formed by assembling a lower protective cover (1), an upper protective cover (7) and a bottle body (101);

the upper protective cover (7) is provided with a guide sliding piece (8) penetrating through the upper protective cover; a sliding block piece (20) is arranged in the sliding guide piece (8);

the negative pressure pipe (9) comprises a negative pressure pipe I (91) and a negative pressure pipe II (92); the negative pressure tube I (91) and the negative pressure tube II (92) are respectively nested at two ends of the sliding guide piece (8), and the negative pressure tube II (92) is connected with the negative pressure sputum suction machine (19);

the negative pressure pipe I (91) is inserted into the sputum storage bottle (2), and a sliding contact component is arranged in the end pipe;

the sliding contact component comprises a first contact (4), a first spring (5), a second contact (6), a support rod (3) and a support (10); a support rod (3) is fixedly installed on the support (10), a first spring (5) is sleeved on the support rod (3), and a second contact (6) is sleeved on the outer wall of the first spring (5); the first contact (4) is sleeved on the support rod (3) and is connected with the first spring (5); the second contact (6) is fixedly arranged on the end face of an air inlet of the negative pressure tube I (91), and the support (10) is arranged on the guide sliding piece (8) in a sliding manner;

the first contact (4) and the second contact (6) are respectively and electrically connected with a power-off controller (18) arranged in the negative pressure sputum suction machine (19);

and the power-off controller (18) stops the negative pressure sputum suction machine (19) from sucking pressure when the first contact (4) and the second contact (6) are in collision contact.

2. The portable combined sputum aspirator of claim 1, wherein: the side wall of the slide guiding piece (8) is provided with a first sliding groove (81) and a second sliding groove (82) which protrude outwards, and notches of the first sliding groove (81) and the second sliding groove (82) are aligned with each other.

3. A portable combined sputum aspirator according to claim 2, wherein: the sliding stopper (20) comprises a handle (201), a screw (202), a sealing collar (203), a nut (204) and a stopper (205); the screw rod (202) penetrates through the sealing ferrule (203) and the nut (204) and then is connected with the blocking piece (205), and the other end of the screw rod is provided with a handle (201); the sealing ring (203) and the nut (204) are fixedly mounted on the guide sliding piece (8), and two ends of the blocking piece (205) are respectively connected in the first sliding groove (81) and the second sliding groove (82) in a sliding mode.

4. A portable combined sputum aspirator according to claim 3, wherein: the screw rod (202) is fixedly connected with the blocking piece (205) through a rolling bearing.

5. The portable combined sputum aspirator of claim 1, wherein: the upper protection cover (7) is provided with a pressure release valve (11).

6. The portable combined sputum aspirator of claim 1, wherein: the first contact (4) is in sliding connection with the support rod (3).

7. The portable combined sputum aspirator of claim 4, wherein: the sputum scraping component is arranged on an upper protective cover (7) of the sputum storage bottle (2) and comprises a push rod (13), a sleeve (14), a second spring (15), a sealing ring (17) and a sputum scraping piece (16); the second spring (15) is arranged in the sleeve (14), a sealing ring (17) is fixedly mounted at the bottom of the sleeve (14), the push rod (13) penetrates through the second spring (15) and the sealing ring (17) from the top of the sleeve (14) in sequence and then is connected with the sputum scraping piece (16), and the top of the second spring (15) is connected and fixed on the side wall of the push rod (13).

8. The portable combined sputum aspirator of claim 7, wherein: and the sealing ring (17) is in sealing connection with the push rod (13).

9. The portable combined sputum aspirator of claim 7, wherein: the sputum scraping piece (16) comprises a scraper (161), a supporting seat (162) and an inclined strut (163), wherein the supporting seat (162) is connected with the scraper (161) through the inclined strut (163).

10. The portable combined sputum aspirator of claim 9, wherein: the scraper (161) is in a conical cylinder shape.

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