CN107412889B

CN107412889B - Sputum suction device capable of automatically positioning insertion depth

Info

Publication number: CN107412889B
Application number: CN201710768663.1A
Authority: CN
Inventors: 杨嵘
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-23
Filing date: 2017-08-23
Publication date: 2021-01-15
Anticipated expiration: 2037-08-23
Also published as: CN107412889A

Abstract

The invention relates to the field of medical equipment, in particular to a sputum suction device capable of automatically positioning the insertion depth. It includes: a sputum aspirator capable of automatically positioning the insertion depth, comprising: the device comprises a machine body, a sputum storage bottle, an air filter, a negative pressure pump, a vacuum meter for detecting a negative pressure value, a negative pressure adjusting valve, a double-station reversing valve, a three-way valve, an oxygen tube, a sputum suction tube, a tracheal tube, an upright post, a rotating rod, an ultrasonic probe, a supporting plate, a self-locking air spring, an ultrasonic instrument host, an image display instrument, a sliding block and an alarm. It utilizes the ultrasonic wave to fix a position, can prevent that the intubate is too dark or too shallow, need not the manual work and extracts the phlegm sucking pipe, can avoid because the not enough or misoperation-caused damage of patient's suction channel mucous membrane of artificial experience, and its tracheal cannula prevents to loosen in can be fine being fixed in the trachea through interior gasbag, and outer gasbag combines the medicine feeding pipe can be used to go up the medicine and absorb the sputum of gasbag department.

Description

Sputum suction device capable of automatically positioning insertion depth

Technical Field

The invention relates to the field of medical equipment, in particular to a sputum suction device capable of automatically positioning the insertion depth.

Background

The sputum aspirator is mainly applied to respiratory tract sputum cleaning, at present, the hospital carries out trachea cannula and oropharynx sputum aspiration and other airway management measures for rescuing patients with cerebral apoplexy coma vomiting, lung infection sputum embolus, surgical operation, acute laryngeal obstruction, emergency tracheotomy and the like so as to clean airway secretions or foreign matters, thereby keeping the airway smooth and being beneficial to further carrying out measures such as pressurization and ventilation of a breathing machine, if the airway secretions or vomits are not cleaned in time, serious consequences of aggravation of infection, atelectasis of one side of lung and even death of patients can be caused.

Disclosure of Invention

The invention aims to solve the problems and provides a sputum suction device capable of automatically positioning the insertion depth, which can be used for positioning by utilizing ultrasonic waves, can prevent an intubation tube from being too deep or too shallow, does not need to pull out the sputum suction tube manually, can avoid the injury of a mucous membrane of a suction channel of a patient caused by insufficient manual experience or misoperation, can be well fixed in a trachea through an inner air sac to prevent loosening, can be used for feeding medicine and sucking sputum at the air sac by combining an outer air sac and a medicine feeding tube, and adopts the following technical scheme that:

a sputum aspirator capable of automatically positioning the insertion depth, comprising: the sputum aspirator comprises a machine body, a sputum storage bottle, an air filter, a negative pressure pump, a vacuum meter for detecting a negative pressure value, a negative pressure adjusting valve, a double-station reversing valve, a three-way valve, an oxygen tube, a sputum suction tube, a tracheal tube, a stand column, a rotating rod, an ultrasonic probe, a support plate, a self-locking air spring, an ultrasonic instrument host for receiving and processing signals detected by the ultrasonic probe, an image display instrument for displaying images of signals processed by the ultrasonic instrument host, a slider and an alarm for giving an alarm when the tracheal tube reaches a preset position, wherein the air filter is connected with an air suction port of the negative pressure pump, the air filter, the sputum storage bottle, the negative pressure adjusting valve, the double-station reversing valve and the three-way valve are sequentially connected in series from left to right, a disinfectant is contained in the sputum storage bottle, the tracheal tube is connected with one outlet end of the three-way valve through the oxygen tube, one end of the rotating rod is connected with the upright column in a sliding manner and can slide up and down along the upright column, and the sliding block is connected with the rotating rod in a sliding manner and can slide along the rotating rod; the ultrasonic probe is rotatably connected with the sliding block, the supporting plate is fixedly connected with the stand column, one end of the self-locking air spring is connected with the supporting plate, and the other end of the self-locking air spring is connected with the rotating rod.

On the basis of the technical scheme, the upright column consists of a cylindrical section of a bottom section and a square section of a top section.

On the basis of the technical scheme, a guide sleeve is arranged below the air outlet of the sputum storage bottle, a floating column with a conical top is arranged in the guide sleeve, and the floating column can seal the air outlet of the sputum storage bottle.

On the basis of the technical scheme, the sum of the length of the guide sleeve and the length of the floating column is greater than the distance from the air outlet of the sputum storage bottle to the bottom of the sputum storage bottle.

On the basis of the technical scheme, the sputum suction machine further comprises a servo motor, two sliding tables, a screw rod, a supporting table, a rotary table, two cylinders, a semicircular clamping plate, a gear ring, a forward and reverse rotation driving motor, a driving synchronous belt wheel, a driven synchronous belt wheel and a straight gear, wherein the servo motor is fixedly installed on a machine body; semicircular clamp plate is connected with the piston rod of cylinder, just its pivot is connected with initiative synchronous pulley in positive and negative commentaries on classics driving motor rigid coupling on the brace table, initiative synchronous pulley passes through synchronous belt drive driven synchronous pulley, driven synchronous pulley and the coaxial rigid coupling of straight-teeth gear just rotate with the brace table through the pivot and are connected, the ring gear rigid coupling just with the carousel with the centre of a circle on the carousel right-hand member, straight-teeth gear meshes with the ring gear mutually.

The invention has the following advantages: it utilizes the ultrasonic wave to fix a position, can prevent that the intubate is too dark or too shallow, need not the manual work and extracts the phlegm sucking pipe, can avoid because the not enough or misoperation-caused damage of patient's suction channel mucous membrane of artificial experience, and its tracheal cannula prevents to loosen in can be fine being fixed in the trachea through interior gasbag, and outer gasbag combines the medicine feeding pipe can be used to go up the medicine and absorb the sputum of gasbag department.

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 description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary of the invention, and that other embodiments can be derived from the drawings provided by those skilled in the art without inventive effort.

FIG. 1: the invention has a structure schematic diagram;

FIG. 2: the simple illustration of the present invention;

FIG. 3: the invention relates to a left view structure schematic diagram of a turntable;

FIG. 4: the invention relates to a right view structure schematic diagram of a turntable;

FIG. 5: the cross section structure of the support table is schematic;

FIG. 6: the structure of the tracheal cannula is shown schematically;

FIG. 7: the section of the tracheal cannula at the air bag is enlarged and the structure is schematic;

FIG. 8: the invention discloses a schematic top view structure of a stand column;

FIG. 9: the invention utilizes a schematic diagram of ultrasonic positioning;

Detailed Description

The invention is further illustrated by the following figures and examples:

reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "left", "right", etc., indicate orientations or positional relationships based on those shown in fig. 1, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 6, the sputum aspirator capable of automatically positioning the insertion depth according to the present embodiment is characterized by comprising: the sputum aspirator comprises a machine body 1, a sputum storage bottle 2, an air filter 4, a negative pressure pump 5, a vacuum meter 50 for detecting a negative pressure value, a negative pressure adjusting valve 7, a double-station reversing valve 8, a three-way valve 9, an oxygen tube 90, a sputum suction tube 91, a tracheal cannula 100, a stand column, a rotating rod 51, an ultrasonic probe 52, a support plate 53, a self-locking air spring 54, an ultrasonic instrument host 55 for receiving and processing signals detected by the ultrasonic probe, an image display 56 for displaying images of signals processed by the ultrasonic instrument host 55, a sliding block 57 and an alarm for giving an alarm when the tracheal cannula 100 reaches a preset position, wherein the air filter 4 is connected with an air suction port of the negative pressure pump 5, the air filter 4, the sputum storage bottle 2, the negative pressure adjusting valve 7, the double-station reversing valve 8 and the three-way valve 9 are sequentially connected in series from left to right, the sputum storage bottle 2 is filled with a disinfectant, the tracheal cannula 100 is connected with an outlet end of the three, the upright is longitudinally arranged, the bottom of the upright is rotatably connected with the machine body 1, one end of the rotating rod 51 is connected with the upright in a sliding manner and can slide up and down along the upright, and the sliding block 57 is connected with the rotating rod 51 in a sliding manner and can slide along the rotating rod 51; the ultrasonic probe 52 is rotatably connected with the slide block 57, the support plate 53 is fixedly connected with the upright column, one end of the self-locking gas spring 54 is connected with the support plate 53, and the other end is connected with the rotating rod 51. One air inlet end of the double-station reversing valve 8 is connected with the negative pressure regulating valve 7 in series, and the other air inlet end of the double-station reversing valve can be connected with an oxygen cylinder or a humidifier or an artificial nose.

The conventional tracheotomy sputum aspiration requires that the tip of the sputum aspiration tube exceeds the top end of the tracheal cannula and reaches the trachea or the main bronchus, so that the cough reflex of a patient is stimulated, and deep sputum removal is promoted. But strong irritation can lead to damage of the airway mucosa and a dramatic increase in airway pressure. In order to reduce the stimulation of sputum aspiration to the respiratory mucosa, Wood et al in 1998 proposed a superficial sputum aspiration method, i.e., the tip of the sputum aspiration tube is located at the top of the tracheal catheter to avoid the injury caused by negative pressure and contact of the catheter with the tracheal mucosa during sputum aspiration. However, the effect of superficial sputum aspiration on the airway management of a patient depends on the ability of the patient to clear the airway, including the amount of sputum, the effectiveness of coughing, the level of wakefulness, etc. For patients with severe craniocerebral injury tracheotomy, the cough reflex is weakened or disappeared due to the coma state, and deep sputum suction is still recommended to ensure the quality of airway care. At present, when the sputum is sucked, a nurse has no objective judgment standard for the insertion depth of the sputum suction tube, the force for inserting the sputum suction tube during operation is high, the stimulation to the trachea bulge is obvious, and the local injury is easily caused. The technical scheme of the application well solves the problem, firstly, the depth to be inserted is calculated, a patient lies down to expose the throat, at the moment, a transverse line mark can be drawn on the throat of the patient, then the upright column is rotated, the rotating rod 51 is swung, the sliding block 57 is slid to enable the ultrasonic probe 52 to be positioned right above the throat, the rotating rod 51 does not obstruct the operation, the rotating rod 51 drives the ultrasonic probe 52 to descend together to a certain position, the ultrasonic probe 52 is adjusted to enable the ultrasonic beam plane of the ultrasonic probe 52 to transversely cut the throat and to be basically superposed with the mark line on the throat, when the sputum suction tube is inserted, the sputum suction tube is slowly inserted, when the sputum suction tube reaches the preset depth (the tip of the sputum suction tube reaches the ultrasonic beam plane of the ultrasonic probe 52), the image display device displays the image, and meanwhile, the alarm. At this time, the sputum aspirator tube reaches a predetermined depth, and the ultrasonic probe 52 is lifted up and then turned to a non-working position by the rotary lever. It can reduce the incidence of tracheal mucosa injury and shorten the breath holding time during sputum aspiration; can achieve the aim of managing the airway of a patient with severe craniocerebral injury tracheotomy, namely preventing and reducing intrapulmonary infection and keeping the respiratory tract unobstructed.

In order to prevent the sputum from entering the negative pressure pump 5, it is preferable that a safety bottle 3 is further included, and the safety bottle 3 is connected in series between the air filter 4 and the sputum storage bottle 2.

As shown in fig. 8, wherein the column may be composed of a cylindrical section 50-1 of the bottom section and a square section 50-2 of the top section.

Preferably, the sputum suction device capable of automatically positioning the insertion depth further comprises a servo motor 10, a sliding table 12, a screw rod 11, a supporting table 13, a rotary table 14, a cylinder 15, a semicircular clamping plate 16, a gear ring 17, a forward and reverse rotation driving motor 18, a driving synchronous pulley 19, a driven synchronous pulley and a spur gear, wherein the servo motor 10 is fixedly installed on the machine body 1, the screw rod 11 is rotatably connected with a bearing seat installed on the machine body 1 through a bearing, the screw rod 11 and the sliding table 12 form a ball screw pair, the sliding table 12 is slidably connected with the machine body 1, the supporting table 13 is fixedly installed on the sliding table 12, the top of the supporting table 13 is a semicircular surface, the top surface of the supporting table 13 is recessed downwards to form a semicircular sliding groove 13a, the bottom of the rotary table 14 is embedded into the sliding groove 13a and is slidably connected with the sliding groove 13a, a through hole 14a through which, the two cylinders 15 are fixedly arranged on the left end face of the turntable 14 and symmetrically distributed on two sides of the through hole 14 a; semicircular clamping plate 16 is connected with the piston rod of cylinder 15, just reverse rotation driving motor 18 rigid coupling is connected on supporting bench 13 and its pivot is connected with initiative synchronous pulley 19, initiative synchronous pulley 19 passes through synchronous belt drive driven synchronous pulley, driven synchronous pulley and the coaxial rigid coupling of straight-teeth gear just rotate with supporting bench 13 through the pivot to be connected, ring gear 17 rigid coupling on carousel 14 right-hand member and with carousel 14 concentric circles, the straight-teeth gear meshes with ring gear 17 mutually. The cylinder 15 can clamp the suction catheter but not flatten it by means of the semicircular clamping plate 16. The sliding table 12 slides left and right, for example, the sputum suction tube can be slowly pulled out of the trachea incision or the trachea cannula leftwards, the sputum suction tube is clamped by the air cylinder 15 and the rotating disc 14 is driven by the forward and reverse rotation driving motor 18 to rotate clockwise and anticlockwise, and the motion of the sliding table 12 is combined, so that the sputum suction tube can be slowly pulled out of the trachea incision or the trachea cannula while rotating the sputum suction tube. If the suction catheter is suddenly and slowly pulled out during manual operation, the damage to the mucous membrane of the patient's suction channel can be avoided, the technical scheme can avoid the damage to the mucous membrane of the patient's suction channel caused by insufficient manual experience or misoperation, and the suction catheter is pulled out while being rotated, so that the filling of the suction catheter can be reduced, and the suction catheter can be more fully sucked.

Preferably, a sliding sleeve 140 is installed in the through hole 14 a.

Preferably, a guide sleeve 21 is arranged below the air outlet of the sputum storage bottle 2, a floating column 20 with a conical top is arranged in the guide sleeve 21, and the floating column 20 can seal the air outlet of the sputum storage bottle 2. When the reason why the sputum is too much because forgetting to fall in the sputum storage bottle 2, the floating column 20 floats and seals the air outlet of the sputum storage bottle 2 to prevent the sputum from entering the negative pressure pump 5.

Preferably, the sum of the length of the guide sleeve 21 and the length of the floating column 20 is greater than the distance from the air outlet of the sputum storage bottle 2 to the bottom of the sputum storage bottle 2.

Preferably, the tracheal cannula 100 mainly comprises an oxygen tube/humidifying tube joint 101, a cannula main body 104, an air inlet tube part 105, a rotary joint, a stop plate 109, a dressing 110, an outer cannula 107, an inner cannula 108 and a sputum storage tank 111, wherein the oxygen tube/humidifying tube joint 101 is detachably connected with the oxygen tube 90, the cannula main body 104 is integrally formed by a hollow cylindrical body part 104-2 and a hollow hemispherical body part 104-1, the diameter of the cylindrical body part 104-2 is smaller than that of the hemispherical body part 104-1, the oxygen tube/humidifying tube joint 101 is fixedly connected with the cylindrical body part 104-2, the air inlet tube part 105 is fixedly connected with the hemispherical body part 104-1, one end of the air inlet tube part penetrates into the hemispherical body part 104-1, the other end of the air inlet tube part is fixedly connected with a first rotary part 106-1 of the rotary joint, a second rotary part 106-2 of the rotary joint is, the inner sleeve 108 is arranged in the outer sleeve 107 in a penetrating manner, one end of the outer sleeve 107 is fixedly connected with the stop plate 109, the inner side of the stop plate 109 is provided with a dressing 110, the sputum storage tank 111 is detachably connected with the hemispherical body 104-1, and a liquid blocking part 104a for blocking sputum is formed between the cylindrical body 104-2 and the hemispherical body 104-1. Further, the dressing 110 is composed of an inner hydrophilic layer and an outer hydrophobic layer, the hydrophilic layer is composed of polyurethane and polyethylene glycol porous foam, sputum around the wound can be fully absorbed, the skin around the wound can be kept dry, and adverse reactions such as skin redness and swelling, skin rash, erosion, infection and the like can be reduced. The dressing change interval time can be prolonged, when ordinary sterile gauze is used for dressing change nursing, in order to keep the wound local dry and reduce the chance of skin damage and external bacteria invasion, the dressing change frequency can only be increased, the workload of nursing staff is increased, the trachea incision gauze is frequently changed, the fixing lace of the trachea outer sleeve is easy to loosen, severe cough and expectoration of a patient are caused, the trachea sleeve is easy to be separated, and the pain of the patient is increased when the trachea outer sleeve is inserted again. And the dressing of this application itself has the viscose, and absorbs the sputum back to the wound side inflation, makes it inseparable with the skin laminating, keeps skin dry, only just need change when the dressing expands completely, has prolonged the interval time of changing dressings to alleviate nursing work load, improve patient's comfort level.

In order to make the air flow more uniform, it is preferable that a partition plate 103 having a plurality of homogenizing through holes 103a opened thereon is provided between the cylindrical body portion 104-2 and the hemispherical body portion 104-1.

Preferably, at least two semicircular baffle plates 102 are arranged in the oxygen tube/humidification tube joint 101, and the baffle plates 102 are arranged in a staggered manner.

As shown in fig. 7, preferably, the tracheal cannula 100 further comprises an inner balloon 112, an outer balloon 113, a manual inflation ball 114 and a medicine applying tube 115, wherein the inner balloon 112 is disposed outside the outer cannula 107 and connected to the manual inflation ball 114 through an inflation tube fixed to the outer wall surface of the outer cannula 107, the medicine applying tube 115 is fixed to the outer wall of the outer cannula 107 and communicated with the outer balloon 113, the inner balloon 112 is a closed balloon, and medicine applying holes are disposed on the outer balloon 113. I.e. the outer airbag 113 is not closed. The liquid medicine is introduced into the outer bladder 113 through the medicine applying tube 115 to be applied to a location pressed by the inner bladder 112 through the medicine applying hole.

The present invention has been described above by way of example, but the present invention is not limited to the above-described specific embodiments, and any modification or variation made based on the present invention is within the scope of the present invention as claimed.

Claims

1. A sputum aspirator capable of automatically positioning the insertion depth, comprising: the sputum aspirator comprises a machine body (1), a sputum storage bottle (2), an air filter (4), a negative pressure pump (5), a vacuum meter (50) for detecting a negative pressure value, a negative pressure adjusting valve (7), a double-station reversing valve (8), a three-way valve (9), an oxygen pipe (90), a sputum suction pipe (91), a tracheal cannula (100), an upright post, a rotating rod (51), an ultrasonic probe (52), a supporting plate (53), a self-locking air spring (54), an ultrasonic instrument host (55) for receiving and processing signals detected by the ultrasonic probe, an image display instrument (56) for displaying images of signals processed by the ultrasonic instrument host (55), a sliding block (57) and an alarm for sending an alarm when the tracheal cannula (100) reaches a preset position, wherein the air filter (4) is connected with an air suction port of the negative pressure pump (5), the air filter (4), the sputum storage bottle (2) and the negative pressure pump (5), The negative pressure regulating valve (7), the double-station reversing valve (8) and the three-way valve (9) are sequentially connected in series from left to right, disinfectant is contained in the sputum storage bottle (2), the tracheal cannula (100) is connected with one outlet end of the three-way valve (9) through an oxygen tube (90), the upright is longitudinally arranged, the bottom of the upright is rotatably connected with the machine body (1), one end of the rotating rod (51) is slidably connected with the upright and can slide up and down along the upright, and the sliding block (57) is slidably connected with the rotating rod (51) and can slide along the rotating rod (51); the ultrasonic probe (52) is rotatably connected with the sliding block (57), the supporting plate (53) is fixedly connected with the upright column, one end of the self-locking air spring (54) is connected with the supporting plate (53), the other end of the self-locking air spring is connected with the rotating rod (51), the tracheal cannula (100) mainly comprises an oxygen tube/humidification tube joint (101), a cannula main body (104), an air inlet tube part (105), a rotating joint, a stop plate (109), a dressing (110), an outer sleeve (107), an inner sleeve (108) and a sputum storage tank (111), the oxygen tube/humidification tube joint (101) is detachably connected with an oxygen tube (90), the cannula main body (104) is integrally formed by a hollow cylindrical part (104-2) and a hollow hemispherical part (104-1), and the diameter of the cylindrical part (104-2) is smaller than that of the hemispherical part (104-1), the oxygen tube/humidification tube joint (101) is fixedly connected with a cylindrical body part (104-2), the air inlet tube part (105) is fixedly connected with the hemispherical body part (104-1), one end of the air inlet tube part is penetrated into the hemispherical body part (104-1), the other end of the air inlet tube part is fixedly connected with a first rotating part (106-1) of a rotating joint, a second rotating part (106-2) of the rotating joint is fixedly connected with one end of an inner sleeve (108), the inner sleeve (108) is penetrated into an outer sleeve (107), one end of the outer sleeve (107) is fixedly connected with a stop plate (109), dressing (110) is arranged on the inner side of the stop plate (109), the sputum storage tank (111) is detachably connected with the hemispherical body part (104-1), and a liquid blocking part (104a) for blocking sputum is formed between the cylindrical body part (104-2) and the hemispherical body part (104-1), the dressing (110) consists of a hydrophilic layer of an inner layer and a hydrophobic layer of an outer layer, wherein the hydrophilic layer consists of polyurethane and polyethylene glycol porous foam; tracheal cannula (100) still includes interior gasbag (112), outer gasbag (113), manual ball (114) of aerifing and goes up pencil (115), interior gasbag (112) set up in outer tube (107) outside and are connected with manual ball (114) of aerifing through the gas tube that is fixed in on outer tube (107) outer wall face, it is fixed in on outer tube (107) lateral wall and is linked together with outer gasbag (113) to go up pencil (115), interior gasbag (112) are the confined gasbag, outer gasbag (113) are gone up and are laid the medicine hole.

2. The sputum aspirator capable of automatically positioning the insertion depth, according to claim 1, wherein: the upright column consists of a cylindrical section (50-1) at the bottom section and a square section (50-2) at the top section.

3. A sputum aspirator capable of automatically positioning the depth of insertion according to claim 1 or 2, wherein: a guide sleeve (21) is arranged below the air outlet of the sputum storage bottle (2), a floating column (20) with a conical top is arranged in the guide sleeve (21), and the floating column (20) can seal the air outlet of the sputum storage bottle (2).

4. The sputum aspirator capable of automatically positioning the insertion depth, according to claim 3, wherein: the sum of the length of the guide sleeve (21) and the length of the floating column (20) is greater than the distance from the air outlet of the sputum storage bottle (2) to the bottom of the sputum storage bottle (2).

5. The sputum aspirator capable of automatically positioning the insertion depth, according to claim 4, wherein: the automatic feeding device is characterized by further comprising a servo motor (10), a sliding table (12), a screw rod (11), a supporting table (13), a rotary table (14), an air cylinder (15), a semicircular clamping plate (16), a gear ring (17), a forward and reverse rotation driving motor (18), a driving synchronous pulley (19), a driven synchronous pulley and a straight gear, wherein the servo motor (10) is fixedly installed on the machine body (1), the screw rod (11) is rotatably connected with a bearing seat installed on the machine body (1) through a bearing, the screw rod (11) and the sliding table (12) form a ball screw pair, the sliding table (12) is slidably connected with the machine body (1), the supporting table (13) is fixedly installed on the sliding table (12), the top of the supporting table (13) is a semicircular surface, the top surface of the supporting table is sunken downwards to form a semicircular sliding groove (13a), the bottom of the rotary table (14) is embedded into the sliding groove (, the central position of the turntable (14) is provided with through holes (14a) for the sputum suction pipes (91) to pass through, and the two cylinders (15) are fixedly arranged on the left end face of the turntable (14) and symmetrically distributed on two sides of the through holes (14 a); semicircular clamping plate (16) are connected with the piston rod of cylinder (15), just its pivot is connected with initiative synchronous pulley (19) on brace table (13) to positive and negative rotation driving motor (18) rigid coupling, initiative synchronous pulley (19) are through synchronous belt drive driven synchronous pulley, driven synchronous pulley and the coaxial rigid coupling of straight-teeth gear just rotate with brace table (13) through the pivot and are connected, ring gear (17) rigid coupling just with carousel (14) concentric circles on carousel (14) right-hand member, straight-teeth gear meshes with ring gear (17) mutually.