CN117243605B - Blood sampling device based on laminating formula carries out negative pressure drainage - Google Patents
Blood sampling device based on laminating formula carries out negative pressure drainage Download PDFInfo
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- CN117243605B CN117243605B CN202311499477.4A CN202311499477A CN117243605B CN 117243605 B CN117243605 B CN 117243605B CN 202311499477 A CN202311499477 A CN 202311499477A CN 117243605 B CN117243605 B CN 117243605B
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- 238000010241 blood sampling Methods 0.000 title claims abstract description 40
- 238000010030 laminating Methods 0.000 title claims description 8
- 239000007788 liquid Substances 0.000 claims abstract description 102
- 239000008280 blood Substances 0.000 claims abstract description 51
- 210000004369 blood Anatomy 0.000 claims abstract description 51
- 238000009423 ventilation Methods 0.000 claims abstract description 48
- 230000000903 blocking effect Effects 0.000 claims description 17
- 230000017531 blood circulation Effects 0.000 claims description 7
- 230000007306 turnover Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000003475 lamination Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 238000007599 discharging Methods 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150053—Details for enhanced collection of blood or interstitial fluid at the sample site, e.g. by applying compression, heat, vibration, ultrasound, suction or vacuum to tissue; for reduction of pain or discomfort; Skin piercing elements, e.g. blades, needles, lancets or canulas, with adjustable piercing speed
- A61B5/150061—Means for enhancing collection
- A61B5/150099—Means for enhancing collection by negative pressure, other than vacuum extraction into a syringe by pulling on the piston rod or into pre-evacuated tubes
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Pain & Pain Management (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Dermatology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
The invention relates to the technical field of negative pressure drainage blood sampling, in particular to a blood sampling device for negative pressure drainage based on lamination. The device comprises a drainage piece, wherein a pressing sleeve is arranged on the upper side of the drainage piece, and through pressing the pressing sleeve, air pressure difference occurs in the drainage piece, so that the drainage piece can absorb negative pressure of blood, and the drainage piece comprises a ventilation part, an exhaust part, a liquid suction part and a liquid discharge part. According to the invention, the air in the ventilation part is discharged through the exhaust part by pressing the pressing sleeve, so that negative pressure is generated in the ventilation part, pressure difference is generated between the ventilation part and the outside, the liquid suction part sucks blood into the ventilation part, and meanwhile, the ventilation part, the exhaust part and the liquid suction part are assembled together, so that the space occupied by the device is reduced, a medical staff can perform blood sampling operation on a patient by holding the drainage piece, the blood sampling difficulty of the medical staff on the patient is reduced, meanwhile, the medical staff can also perform rapid operation on the device in emergency, and the front-end operation of blood sampling on the patient is accelerated.
Description
Technical Field
The invention relates to the technical field of negative pressure drainage blood sampling, in particular to a blood sampling device for negative pressure drainage based on lamination.
Background
The blood sampling device is an instrument product for obtaining a blood sample from a human body, the product consists of a sharp needle head and a connecting pipe, the blood can be collected into a container by puncturing skin and blood vessels, the effect of collecting the blood of the human body is achieved, and in order to facilitate the outflow of the blood, a negative pressure bottle is arranged on the blood sampling device to accelerate the drainage of the blood.
But the space that the negative pressure bottle occupy is big, need occupy certain space when carrying out the blood sampling to the patient, when the emergency carries out the blood sampling, need put the negative pressure bottle, increase the negative pressure bottle simultaneously after, device whole volume is great, doctor need put the device earlier when using, just can carry out blood sampling operation to the patient, it is inconvenient to use, in order to accelerate medical personnel to the leading operating speed of patient's blood sampling, the space that also reduce the device and occupy simultaneously, make medical personnel carry out blood sampling operation to the patient fast under the emergency, so set up the blood sampling device that carries out negative pressure drainage based on laminating and help medical personnel to blood sampling to the patient.
Disclosure of Invention
The present invention is directed to a blood sampling device for negative pressure drainage based on a fitting type, so as to solve the problems set forth in the background art.
In order to achieve the above object, the blood sampling device for negative pressure drainage based on the laminating type is provided, the blood sampling device comprises a drainage piece, the upper side of the drainage piece is provided with a pressing sleeve, the air pressure difference occurs in the drainage piece through pressing the pressing sleeve, the drainage piece is used for absorbing negative pressure of blood, the drainage piece comprises a ventilation part, an exhaust part, a liquid suction part and a liquid discharge part, the exhaust part and the liquid suction part are arranged on one side of the ventilation part, the liquid discharge part is arranged on the other side of the ventilation part, the pressing sleeve is arranged on the ventilation part, when the pressing sleeve is pressed, the ventilation part shields the liquid discharge part, meanwhile, air of the pressing sleeve is extruded into the ventilation part, the air entering the ventilation part is discharged through the exhaust part, the pressing of the pressing sleeve is released, the ventilation part and the pressing sleeve are separated through the elasticity of the pressing sleeve, the ventilation part does not block the liquid discharge part at the moment, the air pressure of the ventilation part is lower than the outside, and the outside blood enters the ventilation part through the liquid suction part at the moment, and leaves the ventilation part through the liquid discharge part.
As a further improvement of the technical scheme, the ventilation part comprises a middle through pipe, one end of the middle through pipe is connected with a connecting pipe, a plurality of air inlets are formed in the upper side of the middle through pipe, an air plate is hinged to one side of each air inlet, and the air plate seals the air inlets.
As a further improvement of the technical scheme, a baffle frame is fixed on one side, far away from the middle through pipe, of the air inlet, the air plate rotates to enter the baffle frame, the baffle frame limits the upward overturning angle of the air plate, and when the baffle frame limits the air plate to overturn, the air plate is tightly connected with the baffle frame.
As a further improvement of the technical scheme, the liquid draining part is a liquid draining pipe, the liquid draining pipe is communicated with the other end of the middle through pipe, a turnover hole is formed in one end, close to the liquid draining pipe, of the upper side of the middle through pipe, a shielding plate is hinged to one side, close to the liquid draining pipe, of the turnover hole, and when the shielding plate is turned towards the inside of the middle through pipe, the position, connected with the liquid draining pipe, of the middle through pipe is shielded.
As a further improvement of the technical scheme, the air shells are fixed at the positions, close to the bottoms, of the two sides of the middle through pipe, of the air shells, the upper ends of the air shells and the upper ends of the middle through pipe are on the same plane, the air shells are of hollow structures, the pressing sleeve is made of hemispherical rubber materials, the edges of the pressing sleeve are fixed on the upper sides of the air shells and the middle through pipe, and a closed air pressure cavity is formed in the upper sides of the pressing sleeve, the air shells and the middle through pipe.
As the further improvement of this technical scheme, the upside of shielding plate is fixed with the depression bar, when pressing the cover towards the direction that is close to well siphunculus, the gas pressure in the atmospheric pressure chamber increases, pushes away air slab, shielding plate towards the inside upset of well siphunculus, and presses the depression bar to the inside of well siphunculus when pressing the cover, makes the shielding plate shelter from the position that well siphunculus and fluid-discharge tube are connected, and the air in the atmospheric pressure chamber enters into the inside of well siphunculus through baffle frame and upset hole.
As a further improvement of the technical scheme, the exhaust part comprises an exhaust pipe, the liquid suction part comprises a liquid guide pipe, one ends of the exhaust pipe and the liquid guide pipe are connected with pipelines, and one ends of the exhaust pipe and the liquid guide pipe are connected with one end of the connecting pipe, so that the connecting pipe, the exhaust pipe and the liquid guide pipe form a Y-shaped channel.
As a further improvement of the technical scheme, the position of the lower side in the exhaust pipe is hinged with an air blocking plate, the position of the lower side in the liquid guiding pipe is hinged with a liquid pushing plate, the exhaust pipe and the liquid guiding pipe are both fixed with a baffle frame, the baffle frame limits the angle of the air blocking plate turning towards the direction close to the connecting pipe, and the baffle frame limits the angle of the liquid pushing plate turning towards the direction far away from the connecting pipe.
As a further improvement of the technical scheme, when the pressing sleeve is extruded, the gas in the middle through pipe pushes the liquid pushing plate and the gas blocking plate, the baffle frame in the liquid guiding pipe blocks the overturning of the liquid pushing plate, the gas in the middle through pipe pushes the gas blocking plate to overturn, so that the gas is discharged through the exhaust pipe, after the gas in the middle through pipe is discharged, the gas blocking plate is pushed by the external air pressure, the baffle frame in the exhaust pipe blocks the gas blocking plate, and when blood flows, the blood pushes the liquid pushing plate to overturn, so that the blood enters the middle through pipe.
As the further improvement of this technical scheme, the downside of well siphunculus, takeover is fixed with the rubber piece, the bottom of rubber piece is the concave surface of slope, and when the rubber piece accepted the drainage piece, make one end of blast pipe be in the upper end, the fluid-discharge tube is in the lower extreme, and the downside that is located the blast pipe of drainage pipe, the concave surface of rubber piece bottom forms the cavity simultaneously, when pressing down the rubber piece, the rubber piece adsorbs on the object.
Compared with the prior art, the invention has the beneficial effects that:
1. this blood sampling device based on laminating formula carries out negative pressure drainage is through pressing the cover and makes the gas in the portion of ventilating pass through exhaust portion discharge, the condition of negative pressure appears in the inside of messenger's portion of ventilating, pressure differential appears in portion of ventilating and the external world, make imbibition portion with blood inhale in the portion of ventilating, simultaneously with the portion of ventilating, exhaust portion and imbibition portion equipment together, reduce the space that the device occupies, medical personnel can carry out blood sampling operation to patient through holding the drainage piece, reduce medical personnel's the blood sampling degree of difficulty to patient, simultaneously when urgent, medical personnel also can carry out quick operation to the device, the leading operation for patient's blood sampling makes the device can carry out blood sampling to patient fast.
2. This blood sampling device based on laminating formula carries out negative pressure drainage is in with rubber piece and patient's health contact when using, makes the rubber piece place on patient's health, sets up the drainage piece slope through the rubber piece, when the drainage piece is gathered blood for the speed that blood flows in the drainage piece, the drainage piece that the slope set up simultaneously makes the air remove towards the direction of ventilation portion, avoids gas to be taken away by blood, ensures that blood is after being gathered, does not have the air to remain in the container that holds blood, influences holding of blood, guarantees the subsequent cold-stored, the processing of blood.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a drainage member according to the present invention;
FIG. 3 is a second schematic view of the drainage member of the present invention;
FIG. 4 is a schematic view of a portion of a drainage member according to the present invention;
FIG. 5 is a schematic cross-sectional view of a drainage member of the present invention;
FIG. 6 is a schematic illustration of the flow of the internal air flow of the flow guide of the present invention when compressed;
FIG. 7 is one of the internal blood flow schematic diagrams of the drainage member of the present invention when draining blood;
FIG. 8 is a second schematic view of the flow of the internal air flow of the flow guide of the present invention when it is compressed;
FIG. 9 is a second schematic view of the internal blood flow of the drainage member of the present invention when draining blood.
The meaning of each reference sign in the figure is:
1. a drainage member; 11. a middle through pipe; 111. a baffle frame; 112. overturning the hole; 12. connecting pipe; 13. an exhaust pipe; 131. a blocking frame; 132. a choke plate; 14. a liquid guiding pipe; 141. a liquid pushing plate; 15. a liquid discharge pipe; 16. a gas shell; 17. an air plate; 18. a shielding plate;
2. pressing the sleeve;
3. rubber blocks.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Examples
The blood sampling device is an instrument product for obtaining a blood sample from a human body, the product consists of a sharp needle head and a connecting pipe, the blood can be collected into a container by puncturing skin and blood vessels, the effect of collecting the blood of the human body is achieved, and in order to facilitate the outflow of the blood, a negative pressure bottle is arranged on the blood sampling device to accelerate the drainage of the blood.
But the space that the negative pressure bottle occupy is big, need occupy certain space when carrying out the blood sampling to the patient, when the emergency carries out the blood sampling, need put the negative pressure bottle, increase the negative pressure bottle simultaneously after, device whole volume is great, doctor need put the device earlier when using, just can carry out blood sampling operation to the patient, it is inconvenient to use, in order to accelerate medical personnel to the leading operating speed of patient's blood sampling, the space that also reduce the device and occupy simultaneously, make medical personnel carry out blood sampling operation to the patient fast under the emergency, so set up the blood sampling device that carries out negative pressure drainage based on laminating and help medical personnel to blood sampling to the patient.
Referring to fig. 1-9, an objective of the present embodiment is to provide a blood sampling device for negative pressure drainage based on a fitting type, which comprises a drainage member 1, wherein a pressure sleeve 2 is arranged on the upper side of the drainage member 1, and an air pressure difference occurs in the drainage member 1 by pressing the pressure sleeve 2, so that the drainage member 1 can absorb blood in a negative pressure manner, and the blood of a patient is absorbed into the drainage member 1, thereby achieving the collection of the blood of the patient.
Simultaneously, the drainage piece 1 comprises a ventilation part, an exhaust part, a liquid suction part and a liquid discharge part, wherein the exhaust part and the liquid suction part are arranged on one side of the ventilation part, the liquid discharge part is arranged on the other side of the ventilation part, the pressure sleeve 2 is arranged on the ventilation part, when the pressure sleeve 2 is pressed, the ventilation part shields the liquid discharge part, meanwhile, the air of the pressure sleeve 2 is extruded into the ventilation part, the air entering into the ventilation part is discharged through the exhaust part, the extrusion of the pressure sleeve 2 is released, the ventilation part and the pressure sleeve 2 are separated through the elasticity of the pressure sleeve 2, the ventilation part does not block the liquid discharge part at the moment, the air pressure of the ventilation part is lower than the outside, at the moment, the outside blood enters into the ventilation part through the liquid suction part, and leaves the ventilation part through the liquid discharge part, so that the collection of the blood of a patient is completed, meanwhile, the internal negative pressure of the drainage piece 1 is completed through the cooperation of the drainage piece 1 and the pressure sleeve 2, so that the drainage piece 1 collects and guides the blood, the space occupied by the device is reduced, the drainage piece 1 can be operated, the operation can be carried out on the patient through holding the pressure sleeve 2, the medical staff can be operated on the patient, the blood collector can be rapidly operated on the patient, and the blood collector can be rapidly operated on the patient when the medical staff is in emergency, and the blood collector can be rapidly operated, the blood can be used for the patient.
The following refines the structures of the ventilation portion, the exhaust portion, the liquid suction portion, and the liquid discharge portion, so that the drainage member 1 performs the functions described above:
the ventilation part comprises a middle through pipe 11, one end of the middle through pipe 11 is connected with a connecting pipe 12, a plurality of air inlets are formed in the upper side of the middle through pipe 11, an air plate 17 is hinged to one side of each air inlet, the air plate 17 is used for blocking the air inlets, in order to limit the overturning angle of the air plate 17 in the air inlets, a baffle frame 111 is fixed to one side, far away from the middle through pipe 11, of each air inlet, the air plate 17 rotates to enter the inside of the baffle frame 111, the baffle frame 111 limits the overturning angle of the air plate 17 upwards, and meanwhile, when the baffle frame 111 limits the overturning of the air plate 17, the air plate 17 is tightly connected with the baffle frame 111, so that air or liquid cannot pass through the air inlets.
The two sides of the middle through pipe 11 are close to the bottom and are fixedly provided with an air shell 16, the upper end of the air shell 16 and the upper end of the middle through pipe 11 are on the same plane, the air shell 16 is of a hollow structure, the pressing sleeve 2 is made of hemispherical rubber materials, the edge of the pressing sleeve 2 is fixedly arranged on the upper sides of the air shell 16 and the middle through pipe 11, the pressing sleeve 2 and the upper sides of the air shell 16 and the middle through pipe 11 form a sealed air pressure cavity, when the pressing sleeve 2 is subjected to pressure, the space of the air pressure cavity is reduced, air in the air pressure cavity pushes the air plate 17, the air plate 17 is turned towards the middle through pipe 11, and the air enters the middle through pipe 11 through the air inlet.
The liquid discharge part is a liquid discharge pipe 15, the liquid discharge pipe 15 is communicated with the other end of the middle through pipe 11, a turnover hole 112 is formed in one end, close to the liquid discharge pipe 15, of the upper side of the middle through pipe 11, a shielding plate 18 is hinged to one side, close to the liquid discharge pipe 15, of the turnover hole 112, when the shielding plate 18 turns towards the inside of the middle through pipe 11, the position, connected with the liquid discharge pipe 15, of the middle through pipe 11 is shielded, when the pressure sleeve 2 is pressed towards the direction, close to the middle through pipe 11, the pressure in the air pressure cavity is increased, the air plate 17 and the shielding plate 18 are pushed to turn towards the inside of the middle through pipe 11, in order to ensure that the shielding plate 18 turns towards the inside of the middle through pipe 11, a pressing rod is fixed on the upper side of the shielding plate 18, and when the pressure sleeve 2 is pressed towards the inside of the middle through pipe 11, the shielding plate 18 shields the position, where the middle through pipe 11 is connected with the liquid discharge pipe 15, air in the air pressure cavity enters into the inside of the middle through the shielding plate 111 and the turnover hole 112, and the air entering into the middle through pipe 11 cannot enter into the liquid discharge pipe 15 due to the shielding plate 18.
The exhaust part comprises an exhaust pipe 13, the liquid suction part comprises a liquid guide pipe 14, one ends of the exhaust pipe 13 and the liquid guide pipe 14 are connected with pipelines, one ends of the exhaust pipe 13 and the liquid guide pipe 14 are connected with one end of a connecting pipe 12, so that the connecting pipe 12, the exhaust pipe 13 and the liquid guide pipe 14 form a Y-shaped channel, a choke plate 132 is hinged at the position of the lower side inside the exhaust pipe 13, a liquid push plate 141 is hinged at the position of the lower side inside the liquid guide pipe 14, torsion springs are arranged at the positions of the liquid push plate 141, the choke plate 132, the air plate 17 and the shielding plate 18, and the torsion springs drive the air plate 17 and the shielding plate 18 to rotate in the direction away from the middle through pipe 11 so as to drive the choke plate 132 and the liquid push plate 141 to overturn in the direction close to the shielding frame 131.
The inside of blast pipe 13 and draw liquid pipe 14 all is fixed with keeps off the frame 131, keep off the angle that the frame 131 restriction choke plate 132 overturned to being close to the direction of takeover 12, keep off the angle that the frame 131 restriction liquid push pedal 141 overturned to keeping away from the takeover 12, when jacket 2 is extruded, gas in well siphunculus 11 promotes liquid push pedal 141 and choke plate 132, the upset that keeps off the frame 131 in draw liquid pipe 14 blockked liquid push pedal 141, the gas in well siphunculus 11 promotes choke plate 132 upset, make gas discharge through blast pipe 13, after the gas in well siphunculus 11 is discharged, loosen the pressure to jacket 2 at this moment, the jacket 2 resumes the former shape through self elasticity, the atmospheric pressure in the well siphunculus 11 absorbs this moment, at this moment, the gas plate 17, the baffle 18 is not influenced by gas promotion towards keeping away from well siphunculus 11 direction upset, make gas plate 17, baffle 18 respectively with the air inlet and upset hole 112 shutoff, avoid gas in well siphunculus 11 to get into the atmospheric pressure chamber, the atmospheric pressure chamber that does not absorb gas tightly to shelter from plate 17 and baffle 18, further improve the air inlet 17, baffle 18 overturned 112.
Simultaneously, the outside air pressure pushes the air blocking plate 132, the blocking frame 131 in the exhaust pipe 13 blocks the air blocking plate 132, the air blocking plate 132 is tightly attached to the blocking frame 131, at the moment, the liquid pushing plate 141 is subjected to the air pressure suction, meanwhile, the air pressure in the middle through pipe 11 is lower than the blood pressure, the blood flows into the liquid guiding pipe 14, when the blood flows, the blood pushes the liquid pushing plate 141 to overturn, so that the blood enters into the middle through pipe 11, the blood entering into the middle through pipe 11 pushes the air in the middle through pipe 11 to flow towards the liquid discharging pipe 15, the air entering into the liquid discharging pipe 15 enters into a container for containing blood, the air entering into the container can influence the storage and processing of the subsequent blood, in order to reduce the air passing through the liquid discharging pipe 15, the rubber block 3 is fixed on the lower side of the middle through pipe 11 and the connecting pipe 12, the bottom of the rubber block 3 is an inclined concave surface, and when the rubber block 3 receives the liquid guiding piece 1, one end of the exhaust pipe 13 is arranged at the upper end, the liquid discharge pipe 15 is arranged at the lower end, the liquid guide pipe 14 is arranged at the lower side of the exhaust pipe 13, when the device is used, the rubber block 3 is contacted with a patient, the rubber block 3 is placed on the patient, the drainage piece 1 is obliquely arranged through the rubber block 3, when the drainage piece 1 collects blood, the flowing speed of the blood in the drainage piece 1 is accelerated, meanwhile, the obliquely arranged drainage piece 1 enables air to move towards the direction of the ventilation part, the air is prevented from being taken away by the blood, the situation that the air is not remained in a container for holding the blood after the blood is collected is ensured, the blood is prevented from being held, the subsequent refrigeration and processing of the blood are ensured, meanwhile, a cavity is formed by the concave surface at the bottom of the rubber block 3, when the rubber block 3 is placed on the skin of the patient, the rubber block 3 is pressed, the air is adsorbed between the cavity and the skin of the patient, the placement position of the rubber block 3 and the drainage piece 1 is fixed.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. Blood sampling device based on laminating carries out negative pressure drainage, including drainage piece (1), the upside of drainage piece (1) is provided with presses cover (2), presses cover (2) through pressing, makes the air pressure difference appear in drainage piece (1), makes drainage piece (1) carry out negative pressure absorption, its characterized in that to blood: the drainage piece (1) comprises a ventilation part, an exhaust part, a liquid suction part and a liquid discharge part, wherein the exhaust part and the liquid suction part are arranged on one side of the ventilation part, the liquid discharge part is arranged on the other side of the ventilation part, the pressure sleeve (2) is arranged on the ventilation part, the ventilation part shields the liquid discharge part when the pressure sleeve (2) is pressed, meanwhile, air in the pressure sleeve (2) is extruded into the ventilation part, the air entering the ventilation part is discharged through the exhaust part, the extrusion of the pressure sleeve (2) is released, the ventilation part and the pressure sleeve (2) are separated through the elasticity of the pressure sleeve (2), the ventilation part does not block the liquid discharge part at the moment, the air pressure of the ventilation part is lower than the outside, and at the moment, the outside blood enters the ventilation part through the liquid suction part and leaves the ventilation part through the liquid discharge part;
the ventilation part comprises a middle through pipe (11), one end of the middle through pipe (11) is connected with a connecting pipe (12), a plurality of air inlets are formed in the upper side of the middle through pipe (11), an air plate (17) is hinged to one side of each air inlet, and the air plate (17) plugs the air inlets;
a baffle frame (111) is fixed on one side of the air inlet far away from the middle through pipe (11), the air plate (17) rotates to enter the baffle frame (111), the baffle frame (111) limits the upward overturning angle of the air plate (17), and when the baffle frame (111) limits the overturning of the air plate (17), the air plate (17) is tightly connected with the baffle frame (111);
the liquid draining part is a liquid draining pipe (15), the liquid draining pipe (15) is communicated with the other end of the middle through pipe (11), a turnover hole (112) is formed in one end, close to the liquid draining pipe (15), of the upper side of the middle through pipe (11), a shielding plate (18) is hinged to one side, close to the liquid draining pipe (15), of the turnover hole (112), and when the shielding plate (18) turns towards the inside of the middle through pipe (11), the connecting position of the middle through pipe (11) and the liquid draining pipe (15) is shielded;
the two sides of the middle through pipe (11) close to the bottom are fixedly provided with air shells (16), the upper ends of the air shells (16) and the upper ends of the middle through pipe (11) are on the same plane, the air shells (16) are of hollow structures, the pressing sleeve (2) is made of hemispherical rubber materials, the edges of the pressing sleeve (2) are fixedly arranged on the upper sides of the air shells (16) and the middle through pipe (11), and a closed air pressure cavity is formed by the pressing sleeve (2), the air shells (16) and the upper sides of the middle through pipe (11);
the upper side of the shielding plate (18) is fixedly provided with a pressing rod, when the pressing sleeve (2) is pressed towards the direction close to the middle through pipe (11), the air pressure in the air pressure cavity is increased, the air plate (17) and the shielding plate (18) are pushed to turn towards the inside of the middle through pipe (11), and when the pressing sleeve (2) is pressed, the pressing rod is pressed towards the inside of the middle through pipe (11), so that the position, where the middle through pipe (11) is connected with the liquid discharge pipe (15), of the shielding plate (18) is shielded, and air in the air pressure cavity enters the inside of the middle through pipe (11) through the baffle frame (111) and the turning hole (112);
the exhaust part comprises an exhaust pipe (13), the liquid suction part comprises a liquid guide pipe (14), one ends of the exhaust pipe (13) and the liquid guide pipe (14) are connected with pipelines, one ends of the exhaust pipe (13) and the liquid guide pipe (14) are connected with one end of a connecting pipe (12), and the connecting pipe (12), the exhaust pipe (13) and the liquid guide pipe (14) form a Y-shaped channel;
the position of the inside downside of blast pipe (13) articulates there is choke plate (132), the position of the inside downside of drainage pipe (14) articulates there is liquid push pedal (141), the inside of blast pipe (13) and drainage pipe (14) all is fixed with keeps off frame (131), the angle that choke plate (132) overturn to being close to takeover (12) direction is restricted to fender frame (131), the angle that keeps off frame (131) restriction liquid push pedal (141) overturn to keeping away from takeover (12) direction.
2. The blood sampling device for negative pressure drainage based on a conformable type according to claim 1, wherein: when the pressing sleeve (2) is extruded, gas in the middle through pipe (11) pushes the liquid pushing plate (141) and the gas blocking plate (132), the baffle frame (131) in the liquid guiding pipe (14) blocks the overturning of the liquid pushing plate (141), the gas in the middle through pipe (11) pushes the gas blocking plate (132) to overturn, the gas is discharged through the exhaust pipe (13), after the gas in the middle through pipe (11) is discharged, the gas blocking plate (132) is pushed by the external air pressure, the baffle frame (131) in the exhaust pipe (13) blocks the gas blocking plate (132), and when blood flows, the blood pushes the liquid pushing plate (141) to overturn, so that the blood enters the middle through pipe (11).
3. The blood sampling device for negative pressure drainage based on a conformable type according to claim 1, wherein: the utility model discloses a drainage device, including well siphunculus (11), take over the downside of (12) and be fixed with rubber piece (3), the bottom of rubber piece (3) is the concave surface of slope, and when drainage piece (1) was accepted to rubber piece (3), make one end of blast pipe (13) be in the upper end, fluid-discharge tube (15) be in the lower extreme, and the downside that is located blast pipe (13) of drainage pipe (14), the concave surface of rubber piece (3) bottom forms the cavity simultaneously, when pressing down rubber piece (3), adsorbs through between cavity and the object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311499477.4A CN117243605B (en) | 2023-11-13 | 2023-11-13 | Blood sampling device based on laminating formula carries out negative pressure drainage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311499477.4A CN117243605B (en) | 2023-11-13 | 2023-11-13 | Blood sampling device based on laminating formula carries out negative pressure drainage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117243605A CN117243605A (en) | 2023-12-19 |
| CN117243605B true CN117243605B (en) | 2024-01-23 |
Family
ID=89133510
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| CN217119030U (en) * | 2022-01-20 | 2022-08-05 | 江西瑞邦实业集团有限公司 | Prevent infusion bubble charge device |
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| CN203898915U (en) * | 2014-05-05 | 2014-10-29 | 王增涛 | Negative pressure regulator for imbibition |
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| CN207923900U (en) * | 2018-03-12 | 2018-09-28 | 张凤兴 | Blood group tester |
| CN211300000U (en) * | 2019-10-30 | 2020-08-21 | 吕幸福 | Blood sampling bottle for blood test |
| CN212661814U (en) * | 2020-04-26 | 2021-03-09 | 顾少亮 | Negative pressure drainage mechanism and blood sampling device |
| WO2022164401A1 (en) * | 2021-02-01 | 2022-08-04 | Tandogan Altay | An assembly for venting catheter preventing collapse |
| CN217119030U (en) * | 2022-01-20 | 2022-08-05 | 江西瑞邦实业集团有限公司 | Prevent infusion bubble charge device |
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| CN117243605A (en) | 2023-12-19 |
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