CN215308955U

CN215308955U - Blood purifies anti-return pipeline

Info

Publication number: CN215308955U
Application number: CN202121212370.3U
Authority: CN
Inventors: 吕翠翠
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-28
Anticipated expiration: 2031-06-02

Abstract

The utility model relates to the technical field of blood purification backflow-preventing pipelines, in particular to a blood purification backflow-preventing pipeline, which comprises a pipe body, a blood inlet, a ventilation pipe, an air filter, a backflow-preventing device and a blood outlet, wherein the left side of the pipe body is provided with the blood inlet, the upper end of the pipe body is provided with the ventilation pipe, the end part of the ventilation pipe is provided with the air filter, the lower end of the pipe body is provided with the blood outlet, the inside of the pipe body is provided with the backflow-preventing device with the function of avoiding blood waste, when the blood purification device is started, the blood purification device generates suction on a medical hose to enable the pipe body to generate negative pressure, due to the influence of the pressure, a plug I moves linearly under the matching of an upright bearing and a sliding rod, and compresses a spring to enable blood to enter the pipe body and enter the blood purification device through the blood outlet, when the blood purification device finishes evolution of blood, the operation is stopped, and under the action of the counter elasticity of the spring, the plug I blocks the blood inlet, thereby preventing the blood in the tube body and the medical hose from flowing back, and preventing the blood from being sprayed out of the needle tube.

Description

Blood purifies anti-return pipeline

Technical Field

The utility model relates to the technical field of blood purification backflow-preventing pipelines, in particular to a blood purification backflow-preventing pipeline.

Background

Blood purification is also called dialysis in daily life. Its meanings are: the blood of the patient is led out of the body and passes through a purifying device to remove some pathogenic substances and purify the blood, thereby achieving the purpose of treating diseases.

Before dialysis is carried out on a patient, two groups of needle tubes are required to be inserted into a blood vessel of the patient, the needle tubes are connected with a medical hose, the hose is connected with a purifying device, one group of the needle tubes is a blood transfusion needle tube, the other group of the needle tubes is a blood bleeding needle tube, after hemodialysis of the patient is finished, the blood is firstly pulled out from the medical hose, the blood flows back from the medical hose, meanwhile, blood of the patient remains in the medical hose, and huge loss of the blood of the patient is caused for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a blood purification backflow-preventing pipeline to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a blood purification backflow prevention pipeline comprises a pipe body, a blood inlet, a ventilation pipe, an air filter, a backflow prevention device and a blood outlet, wherein the blood inlet is formed in the left side of the pipe body, the ventilation pipe is arranged at the upper end of the pipe body, the air filter is arranged at the end part of the ventilation pipe, the blood outlet is formed in the lower end of the pipe body, and the backflow prevention device with a blood waste prevention function is arranged in the pipe body;

the anti-backflow device comprises a rotating shaft, a bearing is arranged on the rotating shaft, the bearing is embedded into a pipe body, a ventilation mechanism is arranged at one end of the rotating shaft, a rectangular shaft is arranged on one side of the ventilation mechanism, the rectangular shaft is connected with a sliding rod in a matched mode, a spring is sleeved on the sliding rod, the sliding rod is connected with a vertical bearing in a sliding mode, the vertical bearing is embedded into a plug I, a threaded sleeve is arranged at one end of the sliding rod, and a supporting plate is connected with one end of the threaded sleeve.

Preferably, the ventilation mechanism comprises a second plug, two groups of vertical bearings are symmetrically embedded in the second plug, the vertical bearings are connected with the guide pillar in a sliding mode, a hinge seat is arranged on one side of the second plug and is hinged with a pull rod, a worm wheel is arranged at one end of the pull rod, and the worm wheel is meshed with a worm.

Preferably, the blood inlet is connected with the needle tube, the blood outlet is connected with the medical hose, the sealing sleeve is sleeved on the first plug, and the first plug is connected with the blood inlet in a matching manner.

Preferably, the thread bush is internally provided with threads, and the end part of the thread bush is provided with a sealing gasket.

Preferably, one end of the sliding rod is externally provided with a thread, one end of the sliding rod is in threaded connection with the thread sleeve, the other end of the sliding rod is internally provided with a rectangular hole, and the rectangular hole is connected with the rectangular shaft in a matched mode.

Preferably, a sealing sleeve is arranged on the second plug, and the second plug is connected with the ventilation pipe in a matching manner.

Preferably, pull rod one end sets up first bearing, and first bearing embedding worm wheel, worm wheel one side set up the second bearing, and the second bearing embedding body.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the blood purification device is started, the blood purification device generates suction to the medical hose to enable the hose to generate negative pressure, the first plug moves linearly under the matching of the vertical bearing and the sliding rod due to the influence of pressure intensity, and compresses the spring to enable blood to enter the hose and enter the blood purification device through the blood outlet;

2. the ventilation pipe tip spiro union enclosing cover, after the end cap stifled blood inlet, rotate the pivot, the pivot drives the worm and rotates, the rotation of worm makes the worm wheel rotate, the rotation of worm wheel makes pull rod pulling end cap two break away from with the ventilation pipe, the worm makes the slide bar rotate through the rectangular shaft simultaneously, because slide bar and thread bush spiro union, make the slide bar move, and compression spring, under the bounce of spring, make end cap one closely paste the blood inlet, play sealed effect, then start blood purifier again, take off the enclosing cover of ventilation pipe tip spiro union, make body and medical soft blood of being inhaled in the blood purifier continue to purify, human blood's loss has been avoided.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: 1. a pipe body; 2. a blood inlet; 3. a vent pipe; 4. an air filter; 5. a backflow prevention device; 6. A bleeding opening; 501. a rotating shaft; 502. a ventilation mechanism; 503. a support plate; 504. a threaded sleeve; 505. a slide bar; 506. a first plug; 507. a spring; 508. a rectangular shaft; 5021. a second plug; 5022. a hinged seat; 5023. A guide post; 5024. a pull rod; 5025. a worm gear; 5026. a worm.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a technical solution: a blood purification backflow prevention pipeline comprises a pipe body 1, a blood inlet 2, a vent pipe 3, an air filter 4, a backflow prevention device 5 and a blood outlet 6, wherein the blood inlet 2 is arranged on the left side of the pipe body 1, the vent pipe 3 is arranged at the upper end of the pipe body 1, the air filter 4 is arranged at the end part of the vent pipe 3, the blood outlet 6 is arranged at the lower end of the pipe body 1, the backflow prevention device 5 with the function of avoiding blood waste is arranged in the pipe body 1, the backflow prevention device 5 comprises a rotating shaft 501, a bearing is arranged on the rotating shaft 501 and embedded in the pipe body 1, a ventilation mechanism 502 is arranged at one end of the rotating shaft 501, a rectangular shaft 508 is arranged at one side of the ventilation mechanism 502, the rectangular shaft 508 is matched and connected with a sliding rod 505, a spring 507 is sleeved on the sliding rod 505, the sliding rod 505 is connected with an upright bearing in a sliding mode, the upright bearing is embedded in a first plug 506, a threaded sleeve 504 is arranged at one end of the sliding rod 505, one end of the threaded sleeve is connected with a support plate 503, the blood inlet 2 is connected with a needle tube, the blood outlet 6 is connected with a medical hose, the first plug 506 is sleeved with a sealing sleeve, the first plug 506 is connected with the blood inlet 2 in a matching mode, when the blood purification device is started, the blood purification device generates suction on the medical hose to enable the tube body 1 to generate negative pressure, due to the influence of pressure, the first plug 506 moves linearly under the matching of the vertical bearing and the sliding rod 505, the spring 507 is compressed to enable blood to enter the tube body 1 and enter the blood purification device through the blood outlet 6, when the blood purification device finishes evolution of the blood, the operation is stopped, and under the action of the rebound force of the spring 507, the first plug 506 blocks the blood inlet 2, so that the tube body 1 and the blood in the medical hose cannot flow back, and the blood is prevented from being sprayed out of the needle tube.

Further, the ventilation mechanism 502 comprises a second plug 5021, two sets of upright bearings are symmetrically embedded in the second plug 5021, the upright bearings are slidably connected with a guide pillar 5023, a hinge seat 5022 is arranged on one side of the second plug 5021, the hinge seat 5022 is hinged with a pull rod 5024, one end of the pull rod 5024 is provided with a worm gear 5025, the worm gear 5025 is meshed with a worm 5026, a thread is arranged in a thread sleeve 504, a sealing gasket is arranged at the end of the thread sleeve 504, a thread is arranged at one end of a slide rod 505, one end of the slide rod 505 is screwed with the thread sleeve 504, a rectangular hole is arranged at the other end of the slide rod 505, the rectangular hole is matched and connected with a rectangular shaft 508, a sealing gasket is arranged on the second plug 5021, the second plug 5023 is matched and connected with a first bearing, the first bearing is embedded in the worm gear 5025, one side of the worm gear 5025 is embedded in the pipe body 1, the end of the vent pipe 3 is screwed with an outer cover, after the first plug 506 blocks a blood inlet 2, the worm rotates the rotary shaft 501, the rotary shaft 502501 drives the rotary shaft 5026 to rotate, the rotation of the worm 5026 enables the worm 5025 to rotate, the rotation of the worm 5025 enables the pull rod 5024 to pull the plug II 5021 to be separated from the ventilation pipe 3, meanwhile, the worm 5026 enables the slide rod 505 to rotate through the rectangular shaft 508, the slide rod 505 is in threaded connection with the threaded sleeve 504, the slide rod 505 moves, the spring 507 is compressed, the plug I506 is tightly attached to the blood inlet 2 under the rebound force of the spring 507 to play a role in sealing, then the blood purification device is started again, the outer cover screwed on the end part of the ventilation pipe 3 is taken down, the blood in the pipe body 1 and the medical soft blood is sucked into the blood purification device to be purified continuously, and the loss of the blood of a human body is avoided.

The working principle is as follows: in the using process, when the blood purification device is started, the blood purification device generates suction to the medical hose to generate negative pressure on the tube body 1, the first plug 506 moves linearly under the matching of the upright bearing and the sliding rod 505 due to the influence of pressure, blood enters the blood purification device through the blood outlet 6 after entering the blood purification device, the blood purification device stops running after the evolution of the blood is finished, the first plug 506 plugs the blood inlet 2 under the action of the rebound force of the spring 507, the rotating shaft 501 rotates, the rotating shaft 501 drives the worm 5026 to rotate, the worm 5026 rotates the worm gear 5025, the rotation of the worm 5025 enables the pull rod 5024 to pull the second plug 5021 to be separated from the vent pipe 3, meanwhile, the sliding rod 505 rotates through the rectangular shaft 508 due to the fact that the sliding rod 505 is in threaded connection with the threaded sleeve 504, the sliding rod 505 moves, the spring 507 is compressed, and under the rebound force of the spring 507, the first plug 506 is tightly attached to the blood inlet 2 to play a role of sealing, then the blood purification device is started again, the outer cover screwed on the end part of the ventilation pipe 3 is removed, and the blood in the pipe body 1 and the medical soft bag is sucked into the blood purification device to be purified continuously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a blood purifies anti-reflux pipeline, includes body (1), advances blood mouth (2), ventilation pipe (3), air cleaner (4), anti-reflux unit (5), bleeding mouth (6), body (1) left side sets up into blood mouth (2), and body (1) upper end sets up ventilation pipe (3), ventilation pipe (3) tip sets up air cleaner (4), body (1) lower extreme sets up bleeding mouth (6), its characterized in that: the anti-backflow device (5) with the function of avoiding blood waste is arranged in the tube body (1);

anti-reflux device (5) are including pivot (501), set up the bearing in pivot (501), bearing embedding body (1), pivot (501) one end sets up ventilation mechanism (502), ventilation mechanism (502) one side sets up rectangular axle (508), slide bar (505) is connected in rectangular axle (508) cooperation, spring (507) are established to the cover on slide bar (505), and slide bar (505) sliding connection erects the bearing, erect bearing embedding plug one (506), slide bar (505) one end sets up thread bush (504), extension board (503) is connected to thread bush (504) one end.

2. The blood purification anti-backflow pipeline according to claim 1, wherein: the ventilation mechanism (502) comprises a second plug (5021), two sets of vertical bearings are symmetrically embedded into the second plug (5021), the vertical bearings are connected with a guide pillar (5023) in a sliding mode, a hinged seat (5022) is arranged on one side of the second plug (5021), the hinged seat (5022) is hinged to a pull rod (5024), a worm wheel (5025) is arranged at one end of the pull rod (5024), and the worm wheel (5025) is meshed with a worm (5026).

3. The blood purification anti-backflow pipeline according to claim 1, wherein: the blood inlet (2) is connected with a needle tube, the blood outlet (6) is connected with a medical hose, a sealing sleeve is sleeved on the first plug (506), and the first plug (506) is connected with the blood inlet (2) in a matching manner.

4. The blood purification anti-backflow pipeline according to claim 1, wherein: the thread sleeve (504) is internally provided with threads, and the end part of the thread sleeve (504) is provided with a sealing gasket.

5. The blood purification anti-backflow pipeline according to claim 1, wherein: one end of the sliding rod (505) is externally provided with threads, one end of the sliding rod (505) is in threaded connection with the threaded sleeve (504), and a rectangular hole is arranged in the other end of the sliding rod (505) and is in matched connection with the rectangular shaft (508).

6. The blood purification anti-backflow pipeline according to claim 2, wherein: and a sealing sleeve is arranged on the second plug (5021), and the second plug (5021) is matched and connected with the ventilation pipe (3).

7. The blood purification anti-backflow pipeline according to claim 2, wherein: the utility model discloses a pipe, including pull rod (5024), first bearing is set up to pull rod (5024) one end, first bearing embedding worm wheel (5025), worm wheel (5025) one side sets up the second bearing, second bearing embedding body (1).