CN215426402U

CN215426402U - Medical constant-speed quantitative automatic negative pressure suction device

Info

Publication number: CN215426402U
Application number: CN202120723877.9U
Authority: CN
Inventors: 陶艾彬
Original assignee: Zhenjiang First Peoples Hospital
Current assignee: Zhenjiang First Peoples Hospital
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2022-01-07
Anticipated expiration: 2031-04-09

Abstract

The utility model relates to a medical constant-speed and quantitative automatic negative pressure suction device, which comprises a puncture needle, a suction tube, an air duct, a negative pressure suction bottle and a negative pressure suction device, wherein the negative pressure suction bottle comprises an upper bottle body, a lower bottle body and a disposable detection cup, the disposable detection cup is placed in the lower bottle body, the lower bottle body and the upper bottle body are fixedly connected through threads, the upper bottle body is respectively provided with the suction tube and the air duct in a penetrating way, one end of the suction tube is provided with the puncture needle, one end of the suction tube close to the puncture needle is provided with a one-way valve, and one end of the suction tube close to the negative pressure suction bottle is provided with a flow velocity meter; one end of the air duct is connected with the air inlet end of the negative pressure suction device, the negative pressure suction device comprises a suction device main body, and a negative pressure suction pump, a PLC (programmable logic controller), a touch screen display and a buzzer which are arranged in the suction device main body, and the PLC is respectively and electrically connected with the negative pressure suction pump, the touch display screen, the buzzer and the flow meter. The negative pressure aspirator is used for carrying out constant-speed quantitative suction on effusion in the thoracic cavity and the abdominal cavity of the patient, and the liquid suction efficiency of medical personnel is greatly improved.

Description

Medical constant-speed quantitative automatic negative pressure suction device

Technical Field

The utility model belongs to the technical field of medical care tools, and particularly relates to a medical constant-speed and quantitative automatic negative pressure suction device.

Background

Pleural effusion (qi) refers to the accumulation of exudates, exudates or gases in the thoracic cavity, which are generally caused by heart, lung or systemic diseases. The main symptoms are dyspnea, normal body temperature or fever. When fluid is accumulated, the two sides of the chest wall are horizontally voiced, and the position of the voiced border changes along with the change of the body position of the patient. When qi is accumulated, the percussion of the affected side of the thorax turns into drum sound, and the auscultation breathing sound weakens or disappears. The clinical treatment method for pleural effusion is usually a puncture drainage method, i.e. a puncture needle is used for entering the pleural cavity, and the negative pressure is used for pumping the effusion (gas) in the pleural cavity to the outside of the body. The traditional extraction mode is to adopt a needle cylinder for extraction, but 800 ml-1000 ml of effusion needs to be extracted each time, and the maximum capacity of the needle cylinder is only 50ml at present, so about 20 times of liquid extraction is needed to complete the liquid extraction of the pleuroperitoneal cavity, and the condition of leakage suction or excessive suction is easy to occur. Although the negative pressure aspirator in the prior art can replace manual work to use a needle tube for suction, the suction speed and the total suction amount cannot be controlled, the structure function is simpler, and the requirement of quantitatively extracting the effusion (gas) of the pleuroperitoneal cavity cannot be met; the existing suction device generally sucks accumulated liquid into a negative pressure suction bottle directly during working, the suction bottle is generally repeatedly put into use after being cleaned, the sterile environment cannot be realized, and the subsequent inspection of the accumulated liquid is easily influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the problems and discloses a medical constant-speed and quantitative automatic negative pressure suction device, which solves the problems that a puncture suction device in the prior art cannot control the suction volume of accumulated liquid (air), has hidden danger, and the existing negative pressure suction bottle cannot be used in a sterile environment, so that the inspection of the accumulated liquid is influenced.

The specific technical scheme is as follows:

a medical constant-speed and quantitative automatic negative pressure suction device comprises a puncture needle, a suction tube, an air guide tube, a negative pressure suction bottle and a negative pressure suction device, wherein the negative pressure suction bottle is arranged on the negative pressure suction device and comprises an upper bottle body, a lower bottle body and a disposable detection cup, the disposable detection cup is arranged in the lower bottle body, the lower bottle body and the upper bottle body are fixedly connected through threads, the suction tube and the air guide tube are respectively arranged on the upper bottle body in a penetrating manner, the lower ends of the suction tube and the air guide tube are positioned in the disposable detection cup, the puncture needle is arranged at one end of the suction tube, a one-way valve is arranged at one end of the suction tube close to the puncture needle, a flow meter is arranged at one end of the suction tube close to the negative pressure suction bottle, the other end of the air guide tube is connected with an air inlet end of the negative pressure suction device, and a negative pressure suction pump, a PLC (programmable logic controller) are further arranged in the negative pressure suction device, Touch-screen display shows ware and bee calling organ, the PLC controller is connected with negative pressure suction pump, touch display screen, bee calling organ and velocity meter electricity respectively, set for the total amount of drawing through touch display screen, control the suction speed of negative pressure suction pump through the PLC controller again, in the attraction process, the velocity meter is measured the liquid velocity of flow in the suction pipe and gives the PLC controller with signal generation, the PLC controller draws the total amount through calculating, when reaching the predetermined value, control bee calling organ sends the police dispatch newspaper and reminds medical personnel to stop attracting.

Furthermore, the check valve comprises a valve body and a middle sealing plug arranged on the valve body, the inner walls of two ends of the valve body are both arranged in a conical surface structure, a positioning seat is arranged in the middle of the valve body, the positioning seat is in a cylindrical structure, one end of the positioning seat is arranged in an opening, a plurality of positioning blocks are circumferentially arranged on the side wall of one end, far away from the opening, of the positioning seat, and one ends of the positioning blocks are fixedly connected with the inner wall of the valve body; sealing plug one end be the toper structure and with valve body one end inner wall looks adaptation, the storage tank has been seted up to the other end of sealing plug, storage tank one end inner wall center is equipped with the connecting rod, the cover is equipped with the spring on the connecting rod, and the one end of spring is supported and is pressed in storage tank one end, and the spring other end supports and presses on the one end inner wall of positioning seat, the one end of connecting rod runs through the center of positioning seat, and circumference is equipped with a plurality of closing plates on the one end lateral wall of connecting rod, every the closing plate is located respectively between two adjacent locating pieces, and one side of every closing plate all is equipped with sealed piece, sealed piece is embedded into and is sealed between two adjacent locating pieces.

Furthermore, one end of the positioning seat is embedded into one end of the accommodating groove, and the outer wall of the positioning seat is attached to the inner wall of the accommodating groove.

Furthermore, the cross section of the connecting rod is of a polygonal structure.

Further, go up the bottle lower extreme and be equipped with the round seal receptacle, the round seal groove has been seted up to the seal receptacle bottom, seal groove inner chamber upper end is equipped with the sealing washer, and is equipped with the round connecting seat on the bottle down, the size of connecting seat and the size looks adaptation of seal groove for in the connecting seat was embedded into the seal groove, the connecting seat upper end was supported and is pressed on the sealing washer, and connecting seat outer wall and seal groove one side inner wall threaded connection.

Furthermore, a plurality of positioning strips used for fixing the disposable detection cup are uniformly arranged on the inner wall of the lower bottle body.

The utility model has the beneficial effects that:

(1) compared with the traditional method of gradually pumping liquid by using a needle cylinder, the constant-speed quantitative suction of effusion (gas) in the pleuroperitoneal cavity of a patient is realized by matching the puncture needle with the suction tube, the negative pressure suction bottle and the negative pressure suction device, and when a preset value is sucked, medical workers are reminded to stop sucking liquid, so that the liquid pumping efficiency of the medical workers is greatly improved, and the condition of sucking leakage and sucking excessive quantity is avoided.

(2) According to the utility model, the negative pressure suction bottle adopts the disposable detection cup to contain the pleural and peritoneal effusion, and the disposable detection cup is taken out for subsequent inspection by separating the upper bottle body and the lower bottle body after liquid pumping is finished, so that the negative pressure suction bottle is kept in a sterile environment, the upper bottle body and the lower bottle body are prevented from being polluted, and the repeated use is facilitated.

(3) The one-way valve adopts a double-sealing structure, so that the sealing effect is greatly improved, and the liquid in the suction pipe is prevented from reflowing; and the spring setting on the connecting rod is between positioning seat and storage tank, avoids the spring direct and hydrops to take place the contact, prevents that the spring from producing the influence to the follow-up inspection of hydrops because of ageing rusty, has improved the life of attracting the pipe.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view of the negative pressure suction bottle of the present invention.

Fig. 3 is a schematic structural view of the check valve of the present invention.

Fig. 4 is a side cross-sectional view of the check valve of the present invention.

Fig. 5 is a working principle diagram of the negative pressure suction apparatus of the present invention.

The device comprises a puncture needle 1, a suction tube 2, an air duct 3, a negative pressure suction bottle 4, an upper bottle body 41, a sealing seat 411, a sealing groove 412, a sealing ring 413, a lower bottle body 42, a connecting seat 421, a positioning strip 422, a disposable detection cup 43, a negative pressure suction apparatus 5, a PLC (programmable logic controller) 51, a negative pressure suction pump 52, a touch display screen 53, a buzzer 54, a one-way valve 6, a valve body 61, a sealing plug 62, a containing groove 621, a connecting rod 622, a spring 623, a sealing plate 624, a sealing block 625, a positioning seat 63, a positioning block 631 and a flow rate meter 7.

Detailed Description

In order to make the technical scheme of the utility model clearer and clearer, the utility model is further described with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent replacement and conventional reasoning on the technical characteristics of the technical scheme of the utility model falls into the protection scope of the utility model. The fixing and the arrangement of the fixing and the connection are all general connection modes in the mechanical field, and the fixing and the connection can be performed by welding, bolt and nut connection and screw connection.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, 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 in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-5, a medical constant-speed quantitative automatic negative pressure suction device comprises a puncture needle 1, a suction tube 2, an air duct 3, a negative pressure suction bottle 4 and a negative pressure suction apparatus 5, wherein the negative pressure suction bottle 4 is arranged on the negative pressure suction apparatus 5, the negative pressure suction bottle 4 comprises an upper bottle body 41, a lower bottle body 42 and a disposable detection cup 43, the upper bottle body 41, the lower bottle body 42 and the disposable detection cup 43 are all made of transparent materials, scales are arranged on the disposable detection cup 43, the disposable detection cup 43 is placed in the lower bottle body 42, the lower bottle body 42 and the upper bottle body 41 are fixedly connected through threads, and the disposable detection cup 43 is convenient to replace, so that the negative pressure suction bottle 4 can keep a sterile environment for containing liquid; the upper bottle body 41 is respectively provided with the suction tube 2 and the air duct 3 in a penetrating way, the lower ends of the suction tube 2 and the air duct 3 are positioned in the disposable detection cup 43, one end of the suction tube 2 is provided with the puncture needle 1, one end of the suction tube 2 close to the puncture needle 1 is provided with the one-way valve 6, one end of the suction tube 2 close to the negative pressure suction bottle 4 is provided with the flow meter 7, the other end of the air duct 3 is connected with the air inlet end of the negative pressure suction device, the negative pressure suction device 5 is also provided with the negative pressure suction pump 52, the PLC controller 51, the touch screen display 54 and the buzzer 54, the PLC controller 51 is respectively electrically connected with the negative pressure suction pump 52, the touch display 53, the buzzer 54 and the flow meter 7, the total suction amount is set through the touch display 53, the PLC controller 51 controls the suction speed of the negative pressure suction pump 52, and in the suction process, the flow meter 7 measures the flow rate of the liquid in the suction tube 2 and sends a signal to the PLC 51, the PLC 51 calculates the total suction amount, and when the preset value is reached, the PLC controls the buzzer 54 to give an alarm and remind the medical staff to stop suction.

Further, the check valve 6 comprises a valve body 61 and a middle sealing plug 62 arranged on the valve body 61, inner walls of two ends of the valve body 61 are both arranged in a conical surface structure, a positioning seat 63 is arranged in the middle of the valve body 61, the positioning seat 63 is in a cylindrical structure, one end of the positioning seat 63 is arranged in an opening, a plurality of positioning blocks 631 in a fan-shaped structure are circumferentially arranged on a side wall of one end, away from the opening, of the positioning seat 63, and one ends of the positioning blocks 631 are both fixedly connected with the inner wall of the valve body 61; sealing plug 62 one end is the toper structure and with valve body 61 one end inner wall looks adaptation, and storage tank 621 has been seted up to sealing plug 62's the other end, storage tank 621 one end inner wall center is equipped with connecting rod 622, the cover is equipped with spring 623 on the connecting rod 622, and the one end of spring 623 is supported and is pressed in storage tank 621 one end, and the spring 623 other end supports and presses on the one end inner wall of positioning seat 63, the center of positioning seat 63 is run through to the one end of connecting rod 622, sliding connection between connecting rod 622 and the positioning seat 63, and circumference is equipped with a plurality of closing plates 624 on the one end lateral wall of connecting rod 622, every closing plate 624 is located respectively between two adjacent locating pieces 631, and one side of every closing plate 624 all is equipped with sealed block 625, sealed block 625 imbeds and seals between two adjacent locating pieces 631.

Furthermore, one end of the positioning seat 63 is embedded into the accommodating groove 621, and the outer wall of the positioning seat 63 is attached to the inner wall of the accommodating groove 621.

Further, the cross section of the connecting rod 622 is a polygonal structure, which prevents the connecting rod 622 from rotating.

Further, go up the bottle 41 lower extreme and be equipped with round seal receptacle 411, round seal groove 412 has been seted up to seal receptacle 411 bottom, seal groove 412 inner chamber upper end is equipped with sealing washer 413, and the bottle 42 upper end is equipped with round connecting seat 421 down, the size of connecting seat 421 and the size looks adaptation of seal groove 412 for connecting seat 421 is embedded into seal groove 412, and connecting seat 421 upper end supports presses on sealing washer 413, and connecting seat 421 outer wall and the inboard wall threaded connection of seal groove 412 one side.

Further, a plurality of positioning strips 422 for fixing the disposable detection cup 43 are uniformly arranged on the inner wall of the lower bottle body 42.

The working principle is as follows:

when in use, the total suction amount of the suction unit is set by the touch panel 53, and the suction speed of the negative pressure suction pump 52 is controlled by the PLC controller 51. In the suction process, the flow meter 7 measures the flow rate of the liquid in the suction pipe 2 and sends a signal to the PLC 51, the PLC 51 calculates the total suction amount, and when the total suction amount reaches a preset value, the PLC controls the buzzer 54 to give an alarm and remind medical staff to stop suction.

When the check valve 6 works, the sealing plate 624 moves towards one end under the action of attraction through the attraction of the negative pressure aspirator 5, the sealing block 625 is not matched with the positioning block 631 to seal, and meanwhile, the sealing plate 624 drives the sealing plug 62 to move through the connecting rod 622, so that the sealing plug 62 is not sealed.

After the liquid suction is completed, the lower bottle body 42 is rotated to separate the lower bottle body 42 from the upper bottle body 41, so that the disposable detection cup 43 is taken out, and a new disposable detection cup 43 is replaced to wait for the next liquid filling.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The medical constant-speed quantitative automatic negative pressure suction device is characterized by comprising a puncture needle (1), a suction tube (2), an air guide tube (3), a negative pressure suction bottle (4) and a negative pressure suction device (5), wherein the negative pressure suction bottle (4) is arranged on the negative pressure suction device (5), the negative pressure suction bottle (4) comprises an upper bottle body (41), a lower bottle body (42) and a disposable detection cup (43), the disposable detection cup (43) is arranged in the lower bottle body (42), the lower bottle body (42) is fixedly connected with the upper bottle body (41) through threads, the suction tube (2) and the air guide tube (3) are respectively arranged on the upper bottle body (41) in a penetrating manner, the lower ends of the suction tube (2) and the air guide tube (3) are arranged in the disposable detection cup (43), the puncture needle (1) is arranged at one end of the suction tube (2), and a one end, close to the puncture needle (1), of the suction tube (2), is provided with a one-way valve (6), one end of the suction tube (2) close to the negative pressure suction bottle (4) is provided with a flow meter (7); one end of the air duct (3) is connected with the air inlet end of the negative pressure suction device, a negative pressure suction pump (52), a PLC (programmable logic controller) (51), a touch screen display and a buzzer (54) are further arranged in the negative pressure suction device (5), and the PLC (51) is respectively electrically connected with the negative pressure suction pump (52), the touch screen display (53), the buzzer (54) and the flow meter (7).

2. The medical constant-speed quantitative automatic negative pressure suction device as claimed in claim 1, wherein the check valve (6) comprises a valve body (61) and a middle sealing plug (62) arranged on the valve body (61), inner walls of two ends of the valve body (61) are arranged in a conical structure, a positioning seat (63) is arranged in the middle of the valve body (61), the positioning seat (63) is in a cylindrical structure, one end of the positioning seat (63) is arranged in an opening, a plurality of positioning blocks (631) are circumferentially arranged on a side wall of one end of the positioning seat (63) away from the opening, and one end of each positioning block (631) is fixedly connected with the inner wall of the valve body (61); one end of the sealing plug (62) is in a conical structure and is matched with the inner wall of one end of the valve body (61), the other end of the sealing plug (62) is provided with a containing groove (621), a connecting rod (622) is arranged at the center of the inner wall of one end of the containing groove (621), a spring (623) is sleeved on the connecting rod (622), one end of the spring (623) is pressed against one end of the containing groove (621), the other end of the spring (623) is pressed against the inner wall of one end of the positioning seat (63), one end of the connecting rod (622) penetrates through the center of the positioning seat (63), a plurality of sealing plates (624) are circumferentially arranged on the side wall of one end of the connecting rod (622), each sealing plate (624) is respectively positioned between two adjacent positioning blocks (631), one side of each sealing plate (624) is provided with a sealing block (625), the sealing block (625) is embedded between two adjacent positioning blocks (631) and seals.

3. The medical constant-speed and constant-quantity automatic negative pressure suction device as claimed in claim 2, wherein one end of the positioning seat (63) is embedded into one end of the containing groove (621), and the outer wall of the positioning seat (63) is attached to the inner wall of the containing groove (621).

4. The medical constant-speed quantitative automatic negative pressure suction device as claimed in claim 2, wherein the cross section of the connecting rod (622) is a polygonal structure.

5. The medical constant-speed and quantitative automatic negative pressure suction device as claimed in claim 1, wherein a circle of sealing seat (411) is arranged at the lower end of the upper bottle body (41), a circle of sealing groove (412) is formed at the bottom of the sealing seat (411), a sealing ring (413) is arranged at the upper end of the inner cavity of the sealing groove (412), a circle of connecting seat (421) is arranged at the upper end of the lower bottle body (42), the size of the connecting seat (421) is matched with the size of the sealing groove (412), so that the connecting seat (421) is embedded into the sealing groove (412), the upper end of the connecting seat (421) is pressed on the sealing ring (413), and the outer wall of the connecting seat (421) is in threaded connection with the inner wall of one side of the sealing groove (412).

6. The medical constant-speed and constant-quantity automatic negative pressure suction device as claimed in claim 5, wherein a plurality of positioning strips (422) for fixing the disposable detection cup (43) are uniformly arranged on the inner wall of the lower bottle body (42).