CN110025839A - A kind of emergency department's sputum aspirator - Google Patents

Abstract

The present invention relates to a kind of emergency department's sputum aspirator, including shell, there are lever and pull ring on shell, pull ring is slided with shell level and connect through the first spring；The edge cam for having axis vertical on shell, edge cam and pull ring are connected through crank link mechanism；There are multiple vertical piston cylinders on shell, has piston and piston push rod in piston cylinder；One end of piston push rod is connect with piston, and the other end is contacted with edge cam；There is the second spring for resetting it on piston push rod；There are inlet channel and exhaust passage equipped with duckbill valve on piston cylinder；There is Venturi tube on shell, multiple exhaust passages are connected to Venturi tube simultaneously；It further include that sputum aspirator tube, collection phlegm tank and three-way connection, sputum aspirator tube are made of outer tube and inner tube, the both ends of outer tube are connect with inner tube, and one end of outer tube is bellows structure, have the set of scraping for being sheathed on bellows on outer tube, there is several sputum suction holes on outer tube；Three-way connection is connected to through hose respectively with collection phlegm tank, outer tube and Venturi tube.

Description

A kind of emergency department's sputum aspirator

Technical field

The present invention relates to emergency medical services equipment, especially a kind of emergency department's sputum aspirator.

Background technique

During emergency, it is frequently encountered some critical patients and occurs mucus obstruction respiratory tract because of a variety of causes and lead The problem of causing expiratory dyspnea needs that the mucus of patient's body is sucked out to ensure its eupnea as early as possible, prevents in this case Asphyxia is generated, therefore, emergency department is typically equipped with sputum aspirator；But existing sputum aspirator is mainly that Multifunctional electric negative pressure is inhaled Phlegm device and manual simplified sputum aspirator depend on electric power energy when electrodynamic type sputum aspirator uses, more convenient when consulting room uses, and one When denier meets with power failure or carries out outgoing first aid, it just will appear the case where not being available, make troubles to rescue；It is manual simplified Sputum aspirator is not required to driven by energy, realizes inspiratory effects using piston motion, but such existing device inspiratory effects not enough connect It passes through, piston reciprocating once only has half the time for utilizing in the process, and the gas that patient's body is sucked out enters inside sputum aspirator It will cause sputum aspirator internal contamination, be easy to cause cross-infection, and carry out as disposable medical equipment using will cause money The significant wastage in source, equipment recycling and destruction also bring along environmental pollution and energy waste.

In addition, sputum aspirator tube used in existing sputum aspirator is difficult to ensure the eupnea of patient during suction sputum, and Once the imbibition Partial Blocking of sputum aspirator tube is difficult to be found and dredge in time, need to extract sputum aspirator tube when dredging just be can be carried out, both Unnecessary intubation number is increased, brings more pains to patient, and is unfavorable for striving for best emergency time, there are certain Medical-risk.

Summary of the invention

For above situation, to make up technical deficiency present in the prior art, the present invention provides a kind of emergency department's suction sputum Device, to solve, existing sputum aspirator suction sputum is ineffective, dependence electric power energy, is not easy to reuse and be difficult to ensure and normally exhale Inhale and can not timely dredge blockage the problem of.

Its technical solution solved is: including shell, there is the lever being placed in below shell and pull ring on shell, lever is placed in The right side of pull ring, the pull ring and shell level are slidably connected and are connected with the first spring between pull ring and shell, and pull ring exists It is slided under the elastic force effect of first spring to the direction far from lever；There is vertically arranged rotatable of axis on the shell Edge cam, edge cam are placed in the left side of pull ring, and edge cam is connected with pull ring through crank link mechanism, when pull ring is in shell When sliding back and forth horizontally on body, edge cam generates continuous rotation under the linkage effect of crank link mechanism；The shell On have multiple vertical piston cylinders of circumference distribution along edge cam, have piston and piston push rod in piston cylinder；Described The cam face of edge cam is placed between piston and edge cam towards piston cylinder, piston push rod, one end of piston push rod with Piston connection, the other end of piston push rod are contacted with the cam face of edge cam；When edge cam rotation, piston push rod quilt Edge cam promotion makes multiple pistons while generating nonsynchronous piston motion；It is set on the piston push rod and is placed in end face The both ends of second spring between cam and piston cylinder, second spring are connect with piston cylinder and piston push rod respectively, piston push rod It keeps squeezing with the cam face of edge cam always under the elastic force effect of second spring and contact；On the piston cylinder respectively There are inlet channel and exhaust passage, there is duckbill valve in inlet channel and exhaust passage, the one-way check effect of duckbill valve makes air inlet Channel air inlet holds one's breath, exhaust passage outlet not air inlet；There is exhaust collecting chamber on the shell, multiple exhaust passages are same When be connected to exhaust collecting chamber, have on shell and be vented the Venturi tube that is connected to of collecting chamber；It further include sputum aspirator tube, collection phlegm tank and Y Shape three-way connection, the inner tube that the sputum aspirator tube is placed in outer tube by outer tube and coaxially form, the both ends of the outer tube with it is interior The tube wall of pipe is tightly connected, and one end of outer tube is bellows structure, have on outer tube be sheathed on bellows and with bellows Set is scraped in end connection, there is several sputum suction holes of close bellows on outer tube, one end of the close sputum suction hole for scraping set and The tube wall of outer tube is bonded；The merging end of the three-way connection is connected to collection phlegm tank through hose, two shunting ends of three-way connection It is connected to respectively through hose with the venturi of outer tube and Venturi tube.

Knot of the present invention needs not rely on driven by energy, by constantly pulling pull ring that uninterrupted suction sputum can be realized, mentions significantly High suction sputum efficiency；Venturi tube generate negative pressure pressure difference it is big, stability is good, pressure difference is smooth, it is ensured that suction sputum pressure it is smooth, Gas that is coherent and stablizing, and patient's body is sucked out, which cannot be introduced into inside getter device, to be polluted, and makes getter device can be into Row recycling, effectively saves medical resource and cost；Sputum aspirator tube realizes suction sputum using double-layer sleeve structure in the present invention Eupnea in the process, while using the timely Quick dredging at retractable bellows realization suction sputum position, it greatly improves The convenience of suction sputum operation and safety.

Detailed description of the invention

Fig. 1 is main view of the invention.

Fig. 2 is the elevational cross-sectional view of getter device in the present invention.

Fig. 3 is the A-A cross-sectional view of getter device in the present invention.

Fig. 4 is the isometric cutaway view of getter device in the present invention.

Fig. 5 is the internal view of the cannula assembly in the present invention using single bellows.

Fig. 6 is the perspective view of the cannula assembly in the present invention using single bellows.

Fig. 7 is in the present invention using the internal view of the cannula assembly reality of bi-bellow.

Specific embodiment

Below in conjunction with attached drawing, specific embodiments of the present invention will be described in further detail.

It is provided by Fig. 1 to Fig. 7, the present invention is made of getter device and cannula assembly, and the getter device includes shell 1, there are the lever 2 and pull ring 3 for being placed in 1 lower section of shell on shell 1, lever 2 is placed in the right side of pull ring 3, the pull ring 3 and shell 1 level is slidably connected and is connected with the first spring 4 between pull ring 3 and shell 1, pull ring 3 under the elastic force effect of the first spring 4 to It slides in direction far from lever 2；The rotatable edge cam 5 for having axis vertically arranged on the shell 1, edge cam 5 It is placed in the left side of pull ring 3, edge cam 5 is connected with pull ring 3 through crank link mechanism 6, when pull ring 3 is horizontal past on shell 1 When sliding again, edge cam 5 generates continuous rotation under the linkage effect of crank link mechanism 6；Have on the shell 1 along end Multiple vertical piston cylinders 7 of the circumference distribution of face cam 5, have piston 8 and piston push rod 9 in piston cylinder 7；The end face The cam face of cam 5 is placed between piston 8 and edge cam 5 towards piston cylinder 7, piston push rod 9, one end of piston push rod 9 It is connect with piston 5, the other end of piston push rod 9 is contacted with the cam face of edge cam 5；When edge cam 5 rotates, piston Push rod 9 makes multiple pistons 8 by the promotion of edge cam 5 while generating nonsynchronous piston motion；It is set on the piston push rod 9 Have a second spring 10 being placed between edge cam 5 and piston cylinder 7, the both ends of second spring 10 respectively with piston cylinder 7 and piston Push rod 9 connects, and piston push rod 9 keeps squeezing with the cam face of edge cam 5 always under the elastic force effect of second spring 10 Contact；Have inlet channel 11 and exhaust passage 12 on the piston cylinder 7 respectively, have in inlet channel 11 and exhaust passage 12 with The one-way check effect of the corresponding duckbill valve 13 of itself air flow direction, duckbill valve 13 makes 11 air inlets of inlet channel hold one's breath, arrange The outlet not air inlet of 12, gas channel；Have exhaust collecting chamber 14 on the shell 1, multiple exhaust passages 12 simultaneously with exhaust afflux Room 14 is connected to, and has the Venturi tube 15 being connected to exhaust collecting chamber 14 on shell 1；The cannula assembly include sputum aspirator tube 16, Collection phlegm tank 17 and Y shape three-way connection 18, the inner tube 20 that the sputum aspirator tube 16 is placed in outer tube 19 by outer tube 19 and coaxially form, The both ends of the outer tube 19 and the tube wall of inner tube 20 are tightly connected, and one end of outer tube 19 is bellows structure, are had on outer tube 19 It is sheathed on bellows and what is connect with the end of bellows scrapes set 21, there is several sputum suction holes of close bellows on outer tube 19 22, one end of described close the sputum suction hole 22 for scraping set 21 is bonded with the tube wall of outer tube 19, when bellows contraction, scrape cover 21 with Generation sliding and the sputum at sputum suction hole 22 is struck off；The merging end of the three-way connection 18 connects with collection phlegm tank 17 through hose Logical, two shunting ends of three-way connection 18 are connected to through hose with the venturi of the other end of outer tube 19 and Venturi tube 15 respectively.

Preferably, the other end of the outer tube 19 has pipe fitting 23, pipe fitting 23 is sheathed on 20 periphery of inner tube, and pipe connects First 23 one end is connect with outer tube 19 is connected to the inner cavity of pipe fitting 23 and the inside of outer tube 19, the other end of pipe fitting 23 with it is interior The tube wall of pipe 20 is slidingly sealed socket；Two shunting ends of the three-way connection 18 respectively with the inner cavity of pipe fitting 23 and Wen Qiu In pipe 15 venturi connection.

Preferably, one end of the outer tube 19 and the same side of inner tube 20 are bellows structure, outer tube 19 it is another There is pipe fitting 23 in one end, and pipe fitting 23 is sheathed on 20 periphery of inner tube, and one end of pipe fitting 23 is connect with outer tube 19 makes pipe fitting 23 Inner cavity be connected to the inside of outer tube 19, the tube wall of the other end of pipe fitting 23 and inner tube 20 is tightly connected；Described three connect First 18 two shunting ends are connected to the venturi of the inner cavity of pipe fitting 23 and Venturi tube 15 respectively.

Preferably, described scrapes the multiple straight trough holes 24 for having circle distribution on set 21, when the bellows of outer tube 19 is shunk Make to scrape set 21 when sliding on outer tube 19, straight trough hole 24, which can avoid scraping set 21, to be blocked sputum suction hole 22 and cause negative in outer tube 19 Pressure holding is continuous to increase and thus causes bellows that can not reset.

Preferably, there is hemispherical strainer 25 in one end corresponding with bellows of the inner tube 20, it to be used for tissue phlegm Liquid enters inner tube 20 and influences breathing, and the hemispherical configuration of strainer 25 can be such that sputum globally shunts outward without blocking filter Net 25.

Preferably, there is horizontally disposed slidable slide bar 26 on the shell 1, pull ring 3 connect with slide bar 26 with Realize the horizontal sliding on shell 1 of pull ring 3, the screw 27 for thering is control slide bar 26 to slide on the shell 1, when screw 27 screws When, the end of screw 27 squeezes slide bar 26 and can not slide 26 locking of slide bar, when screw 27 unscrews, the end of screw 27 with The separation of slide bar 26 makes slide bar 26 unlock and restore sliding.

Preferably, being coaxially connected with flying wheel 28 on the edge cam 5, flying wheel 28 can increase edge cam 5 Rotator inertia, so that edge cam 5 is smoothly crossed the dead-centre position of crank link mechanism 6 when rotating and realize unidirectional continuous Rotation.

Preferably, the diffuser of the Venturi tube 15 has purifying net 29, the gas for will be sucked out by patient's body Body carries out dissipation filtering, realizes safety dumping.

Preferably, there is air inlet collecting chamber 30 on the shell 1, multiple inlet channels 11 simultaneously with air inlet collecting chamber 2 It is connected to, has the air intake duct 31 being connected to outside air on air inlet collecting chamber 30.

Preferably, there is the auxiliary gripping for being placed in 1 lower section of shell 32 on the shell 1, both hands hold 2 He of lever respectively Stability when auxiliary gripping can ensure that operation 32.

The present invention is in use, by among bellows one end insertion patients with respiratory tract of sputum aspirator tube 16, until stopping after appropriate depth Only it is intubated, since inner tube 20 is obstructed each other with outer tube 19 and is independent of each other, patient can be realized by inner tube 20 and normally be exhaled It inhales；Lever 2 and auxiliary gripping are held 32, pulls pull ring 3 to make its sliding with finger, then edge cam 5 is in crank link mechanism 6 Linkage effect is lower to generate rotation, to drive multiple pistons 8 while generate nonsynchronous piston motion；In the first spring 4 and Under the rotator inertia effect of the reseting elasticity and flying wheel 28 of two springs 10, constantly repeat to pull pull ring 3 that multiple work can be realized The uninterrupted reciprocating motion of plug 8, therefore be vented and continuously converge high-voltage high-speed airflow in collecting chamber 14 and flow in Venturi tube 15, Air-flow accelerates to make at the venturi of Venturi tube 15 to generate low pressure at venturi, so that the air collected in phlegm tank 17 be made to flow to venturi The venturi of pipe 15, and then make to collect and generate negative pressure in phlegm tank 17, the sputum sucking outer tube 19 and inner tube 20 that will adhere at sputum suction hole 22 Between and converge interflow enter collection phlegm tank 17 in, complete the absorption of sputum.

When sputum is excessive or it is more thick and when sputum suction hole 22 is blocked, for the intubation group using single bellows structure Part, the interior negative pressure generated of collection phlegm tank 17 makes the bellows section on outer tube 19 generate contraction, so that inner tube 20 be made to move simultaneously except Sliding is generated between pipe fitting 23；The contraction of bellows is connected to scraping for corrugated tube end and covers 21 to shifting at sputum suction hole 22 It is dynamic, so that the sputum passage at sputum suction hole 22 is realized to the dredging of sputum suction hole 22, and since the ventilation in straight trough hole 24 acts on, it scrapes Set 21 will not block the sputum suction hole 22 after dredging, when the dredging of sputum suction hole 22 makes to collect in phlegm tank 17 to may be inhaled enough air When negative pressure is reduced and tended towards stability, bellows resets under own resilient effect, in order to dredge use next time；The structure is set Can also direct out in the case of setting pulls inner tube 20 to realize manual dredging, to avoid occurring dredging halfway situation.

For the cannula assembly using bi-bellow structure, the negative pressure generated in collection phlegm tank 17 makes outer tube 19 and inner tube 20 Bellows section generates contraction, and be connected to corrugated tube end scrapes set 21 to movement at sputum suction hole 22, thus by sputum suction hole 22 The sputum passage at place is to realize the dredging of sputum suction hole 22, and since the ventilation in straight trough hole 24 acts on, scraping set 21 will not will be after dredging Sputum suction hole 22 block, when the dredging of sputum suction hole 22 is reduced and tends to be steady to may be inhaled enough air and make to collect the negative pressure in phlegm tank 17 Periodically, bellows resets under own resilient effect, in order to dredge use next time.

Structure of the invention is compact, and it is convenient to operate, and electric power energy is needed not rely on, by constantly pull ring being pulled to can be realized not It is interrupted suction sputum, substantially increases suction sputum efficiency；It, can by the way that the negative pressure pressure difference of Venturi tube generation is big, stability is good, pressure difference is smooth Guarantee the smooth, coherent of suction sputum pressure and stablize, and is inhaled into after Venturi tube by the gas that patient's body is sucked out directly with gas Stream flows to the diffuser of Venturi tube, and is discharged after being cleaned net purification, and therefore, the gas of suction does not enter in getter device Portion not will cause the pollution inside device, eliminate the risk of cross-infection, getter device need not carry out cleaning can directly more It inserts tube assembly and hose is again coupled to using effectively reducing use cost, save medical resource, reduce medical waste The generation rate of object.

In addition, the present invention realizes the eupnea during suction sputum using the sputum aspirator tube of double-layer sleeve structure, alleviate The pain and medical-risk of patient；Meanwhile stopping suction sputum process is not required to using retractable bellows, suction sputum position can be realized Timely Quick dredging, greatly improve convenience and the safety of suction sputum operation, simplify operating procedure for medical staff, give The treatment of patient's more safety and comfort is experienced.

Claims (10)

1. a kind of emergency department's sputum aspirator, including shell (1), there is the lever (2) being placed in below shell (1) on shell (1) and draw Ring (3), lever (2) are placed in the side of pull ring (3), which is characterized in that the pull ring (3) is slidably connected with shell (1) level And the first spring (4) are connected between pull ring (3) and shell (1), pull ring (3) is under the elastic force effect of the first spring (4) to remote Direction sliding from lever (2)；The rotatable edge cam (5) for having axis vertically arranged on the shell (1), end face is convex Wheel (5) is placed in the other side of pull ring (3), and edge cam (5) is connected with pull ring (3) through crank link mechanism (6)；The shell There are multiple vertical piston cylinders (7) of the circumference distribution along edge cam (5) on body (1), there are piston (8) in piston cylinder (7) With piston push rod (9)；The cam face of the edge cam (5) is placed in piston (8) towards piston cylinder (7), piston push rod (9) Between edge cam (5), one end of piston push rod (9) is connect with piston (5), and the other end of piston push rod (9) and end face are convex Take turns the cam face contact of (5)；It is set with and is placed between edge cam (5) and piston cylinder (7) on the piston push rod (9) Second spring (10), the both ends of second spring (10) are connect with piston cylinder (7) and piston push rod (9) respectively；The piston cylinder (7) there are inlet channel (11) and exhaust passage (12) on respectively, have duckbill valve in inlet channel (11) and exhaust passage (12) (13)；Have exhaust collecting chamber (14) on the shell (1), multiple exhaust passages (12) connect with exhaust collecting chamber (14) simultaneously It is logical, there is the Venturi tube (15) being connected to exhaust collecting chamber (14) on shell (1)；It further include sputum aspirator tube (16), collection phlegm tank (17) With three-way connection (18), the inner tube (20) that the sputum aspirator tube (16) is placed in outer tube (19) by outer tube (19) and coaxially is formed, The both ends of the outer tube (19) are connect with inner tube (20), and one end of outer tube (19) is bellows structure, and outer tube has set on (19) What is connect set on bellows and with the end of bellows scrapes set (21), there is several suction sputums of close bellows on outer tube (19) Hole (22)；The merging end of the three-way connection (18) is connected to collection phlegm tank (17) through hose, and two points of three-way connection (18) Stream end is connected to through hose with the venturi of outer tube (19) and Venturi tube (15) respectively.

2. a kind of emergency department's sputum aspirator according to claim 1, which is characterized in that the other end of outer tube (19) has pipe to connect Head (23), pipe fitting (23) are sheathed on inner tube (20) periphery, and one end of pipe fitting (23) is connected to outer tube (19), pipe fitting (23) The other end and inner tube (20) be slidingly sealed socket；Two shunting ends of the three-way connection (18) respectively with pipe fitting (23) It is connected to the venturi of Venturi tube (15).

3. a kind of emergency department's sputum aspirator according to claim 1, which is characterized in that one end of outer tube (019) and inner tube (20) same side is bellows structure, and the other end of outer tube (19) has pipe fitting (23), and pipe fitting (23) is sheathed on inner tube (20) peripheral, one end of pipe fitting (23) is connected to outer tube (19), and the other end of pipe fitting (23) and the tube wall of inner tube (20) are close Envelope connection；Two shunting ends of the three-way connection (18) connect with pipe fitting (23) and the venturi of Venturi tube (15) respectively It is logical.

4. a kind of emergency department's sputum aspirator according to claim 1, which is characterized in that scraping on set (21) has circle distribution Multiple straight trough holes (24).

5. a kind of emergency department's sputum aspirator according to claim 1, which is characterized in that inner tube (20) it is corresponding with bellows One end have strainer (25).

6. a kind of emergency department's sputum aspirator according to claim 1, which is characterized in that have on shell (1) horizontally disposed Slidable slide bar (26), pull ring (3) is connect to realize horizontal sliding of the pull ring (3) on shell (1) with slide bar (26), described Shell (1) on have control slide bar (26) slide screw (27).

7. a kind of emergency department's sputum aspirator according to claim 1, which is characterized in that coaxially connected on edge cam (5) There are flying wheel (28).

8. a kind of emergency department's sputum aspirator according to claim 1, which is characterized in that the diffuser of Venturi tube (15) has Purifying net (29).

9. a kind of emergency department's sputum aspirator according to claim 1, which is characterized in that shell has air inlet collecting chamber on (1) (30), multiple inlet channels (11) are connected to air inlet collecting chamber (2) simultaneously, have on air inlet collecting chamber (30) and are connected to outside air Air intake duct (31).

10. a kind of emergency department's sputum aspirator according to claim 1, which is characterized in that shell is placed in shell on (1) (1) auxiliary gripping below is (32).