CN213789210U - Semi-isolation type artery and vein kettle device - Google Patents

Abstract

The utility model discloses a semi-isolation formula moves quiet arteries and veins kettle device, include: the bottle cover is used for loading the bottle body of the normal saline, is provided with a semi-permeable membrane surrounding a cavity with blood flowing and is used for closing the bottle body, the top of the bottle body is provided with an air outlet, the bottom of the bottle body is provided with the bottle cover, the bottom of the bottle cover is provided with two through holes, the through holes are respectively communicated with a blood inlet and a blood outlet of a circulating blood path, the semi-permeable membrane is positioned in the bottle body, and the cavity is communicated with the through holes. The device effectively separates the contact between air and blood by utilizing the semipermeable membrane with better compatibility with blood and saline, so that the original air-blood contact interface is changed into the air-water-blood contact interface, the air in the blood can be more effectively removed, and the probability of thrombus can be reduced. Therefore, the device can effectively reduce the phenomena of blood stagnation and blood coagulation in the artery and vein pot.

Description

Semi-isolation type artery and vein kettle device

Technical Field

The utility model relates to a blood purification technical field, more specifically say, relate to a semi-isolation formula sound arteries and veins kettle device.

Background

In the prior art, arterial and venous kettles are used to collect and separate air 01 during dialysis of blood 02. The air 01 source mainly comprises the air 01 remained in the circulating pipeline, the air 01 permeated when the sealing treatment of the connecting part is not good, and the air 01 released in the blood 02. If the gases enter the human body directly without treatment, different clinical manifestations can be generated according to the content of air 01 in the blood vessel. If the amount of air 01 entering the blood vessel is small, the air bubbles can be quickly dissolved in the blood 02 and quickly discharged out of the body through the metabolism of the blood 02, and thus, the air bubbles do not have serious influence on the human body. However, if a large amount of air 01 enters the blood vessel, the air 01 cannot be completely dissolved in the blood 02 in a short time, and air emboli are formed. Along with the flow of blood 02, the air embolus can flow to the whole body of a human body, if the air embolus blocks the lung, acute pulmonary infarction can be caused, and the symptoms of dyspnea of a patient and even sudden death can be caused; if the air embolus is blocked to the heart, acute myocardial infarction can be caused, and the life of a patient is threatened; if air emboli enter into the cranium, serious complications such as acute cerebral infarction may be caused.

In order to prevent these gases from entering the human body, a bubble collecting bottle (arteriovenous pot) is usually used for bubble collection. The common arteriovenous pot mostly adopts a liquid up-in and down-out mode, and the structure is shown in figure 1. Also set up gas vent 4 and the first through-hole that is used for inputing blood at the top of bottle 1, set up the second through-hole that is used for exporting blood in the bottom of bottle 1, wherein, the blood entry 5 intercommunication of first through-hole and circulation blood way, the blood export 6 intercommunication of second through-hole and circulation blood way, consequently, after blood 02 that contains gas gets into bottle 1, blood 02 can be kept in the bottle temporarily, and the bubble can float in this process, then discharges blood 02 from the bottom of bottle 1 again to reach the effect of cleaing away the bubble.

However, due to the structure of the bottle body 1, the blood 02 at the upper part of the bottle body 1 cannot timely return to the human body, meanwhile, due to the temperature difference, the water evaporation, the long-term contact oxidation with the air 01 and the like, annular thrombus is formed on the contact surface of the air 01 and the blood 02 for actuating the venous pot and grows up gradually, if the patient belongs to a coagulation-prone system, the thrombus grows up more quickly, a filter screen or a dialyzer can be blocked, dialysis treatment cannot be normally carried out, and the treatment safety of the patient is finally affected.

In summary, how to reduce the blood stagnation and coagulation in the artery and vein kettle is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a semi-isolated arteriovenous pot device, which can effectively reduce the blood stagnation and coagulation in the arteriovenous pot, effectively remove the air in the blood, and reduce the probability of the occurrence of thrombus.

In order to achieve the above object, the present invention provides the following technical solutions:

a semi-isolated arteriovenous pot device comprising: the bottle cover is used for loading physiological saline, is provided with a semipermeable membrane for enclosing a cavity with flowing blood and is used for closing the bottle cover of the bottle body, the top of the bottle body is provided with an exhaust port, the bottom of the bottle body is provided with the bottle cover, the bottom of the bottle cover is provided with two through holes, the through holes are respectively communicated with a blood inlet and a blood outlet of a circulating blood path, and the semipermeable membrane is positioned in the bottle body, just the cavity is communicated with the through holes.

Preferably, the internal pressure of the bottle body is a negative pressure.

Preferably, the bottle body is provided with two of the exhaust ports.

Preferably, the bottle cap and the bottle body are welded or bonded.

Preferably, the semipermeable membrane is a hose, and two ends of the hose are respectively communicated with the two through holes correspondingly.

Preferably, the bottle cap is connected with the hose in a sealing mode.

Preferably, the cavity is a sphere structure.

Preferably, the bottle cap is in sealing connection with the ball structure.

When the semi-isolated arteriovenous pot device provided by the utility model is used, firstly, the physiological saline is injected into the bottle body through the exhaust port, the physiological saline can moisten the semipermeable membrane, then, the two through holes at the bottom of the bottle cap are respectively communicated with the blood inlet and the blood outlet, so that the blood can enter the through holes from the blood inlet and then enter the cavity, then the blood can flow along the cavity, the flow rate of the blood becomes slow and the pressure becomes small along with the increase of the cavity space in the flowing process of the blood, so that the air bubbles in the blood are separated out through the semipermeable membrane, namely, the air bubbles pass through the semipermeable membrane to reach one side of the physiological saline, then the air bubbles rise and gather to the top of the bottle body and are discharged from the air outlet, the blood with the bubbles removed can flow from the cavity to the other through hole and finally flow out to the blood outlet, so that the bubble removal operation of the blood is effectively realized, and the blood retention phenomenon can be avoided.

The device effectively separates the contact between air and blood by utilizing the semipermeable membrane with better compatibility with blood and saline, so that the original air-blood contact interface is changed into the air-water-blood contact interface, the air in the blood can be more effectively removed, and the probability of thrombus can be reduced.

To sum up, the utility model provides a semi-isolation formula artery and vein kettle device can effectively reduce the interior blood of artery and vein kettle and be detained and the coagulation phenomenon, effectively gets rid of the air in the blood to can reduce the probability that the thrombus takes place.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural view of an arteriovenous kettle in the prior art;

fig. 2 is a schematic structural view of the semi-isolated arteriovenous pot device provided by the present invention.

In fig. 1-2:

01 is air, 02 is blood, 1 is a bottle body, 2 is a semipermeable membrane, 3 is a bottle cap, 4 is an exhaust port, 5 is a blood inlet, 6 is a blood outlet, 7 is physiological saline and 8 is a cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a semi-isolation formula artery and vein kettle device can effectively reduce blood delay and the coagulation phenomenon in the artery and vein kettle, effectively get rid of the air in the blood to can reduce the probability that the thrombus takes place.

Referring to fig. 2, fig. 2 is a schematic structural diagram of a semi-isolated arteriovenous pot device provided in the present invention.

This particular embodiment provides a semi-isolation formula arteries and veins kettle device, includes: a bottle 1 for loading normal saline 7, be equipped with the pellicle 2 that encloses into the mobile cavity 8 of blood and be used for the bottle lid 3 of closed bottle 1, the top of bottle 1 is equipped with gas vent 4, the bottom of bottle 1 is equipped with bottle lid 3, the bottom of bottle lid 3 is equipped with two through-holes, the through-hole respectively with circulation blood way's blood entry 5, 6 intercommunications of blood export, pellicle 2 is located bottle 1, and cavity 8 and through-hole intercommunication.

It should be noted that the air outlet 4 at the top of the bottle body 1 is not only used for air exhaust, but also used for filling with physiological saline 7. The exhaust port 4 can be communicated with a section of guide pipe, and the rear end of the guide pipe is connected with exhaust equipment so as to perform equipment exhaust operation, so that the exhaust efficiency can be improved, and automatic exhaust can be performed through the exhaust port 4.

It should be noted that the semipermeable membrane 2 is a membrane material with very small pores, and the separation of air bubbles and blood can be effectively realized by selecting a membrane material with a suitable pore diameter, so as to ensure that the blood in the cavity 8 does not flow to the side of the physiological saline 7. And two through holes on the bottle cap 3 are mainly used for connecting a circulating blood path so as to realize the in-and-out flow of blood in the cavity 8.

In addition, because the semipermeable membrane 2 is a soft material, the semipermeable membrane 2 is disposed on the bottle cap 3, so that the semipermeable membrane 2 can be effectively supported and fixed, the operation of installing the semipermeable membrane 2 into the bottle body 1 is facilitated, and the manufacturing and processing of the device are also facilitated.

Can be in the in-service use in-process, according to actual conditions and actual demand, confirm bottle 1, pellicle 2 and bottle lid 3 shape, structure, size, material etc..

When the semi-isolated arteriovenous pot device provided by the utility model is used, firstly, the physiological saline 7 is injected into the bottle body 1 through the exhaust port 4, the physiological saline 7 can wet the semipermeable membrane 2, then, the two through holes at the bottom of the bottle cap 3 are respectively communicated with the blood inlet 5 and the blood outlet 6, so that the blood can enter the through holes from the blood inlet 5 and then enter the cavity 8, then the blood can flow along the cavity 8, the blood flow rate is slowed down along with the increase of the space of the cavity 8 in the flowing process, the pressure is reduced, so that the bubbles in the blood are separated out through the semipermeable membrane 2, namely the bubbles reach one side of the physiological saline 7 through the semipermeable membrane 2, then the bubbles rise and gather to the top of the bottle body 1 and are discharged from the exhaust port 4, the blood without the bubbles can flow to another through hole from the cavity 8, finally flows to the blood outlet 6, thereby effectively realizing the bubble removing operation of the blood, and can avoid the phenomenon of blood stagnation.

The device effectively separates the contact between air and blood by using the semipermeable membrane 2 with better compatibility with blood and saline, so that the original air-blood contact interface is changed into the air-water-blood contact interface, the air in the blood can be more effectively removed, and the probability of thrombus can be reduced.

To sum up, the utility model provides a semi-isolation formula artery and vein kettle device can effectively reduce the interior blood of artery and vein kettle and be detained and the coagulation phenomenon, effectively gets rid of the air in the blood to can reduce the probability that the thrombus takes place.

In addition to the above embodiments, it is preferable that the internal pressure of the bottle body 1 is a negative pressure.

It should be noted that the internal pressure of the bottle body 1 is negative pressure, and may be directed to the internal injection of negative pressure saline into the bottle body 1, so that the internal pressure of the bottle body 1 is in a negative pressure state, and in the process of the air bubbles separating out from the semipermeable membrane 2, the physiological saline 7 side is in a negative pressure state, which is more favorable for the air bubbles to separate out, and improves the air exhaust effect, and after the air bubbles are discharged to the physiological saline 7 side, the air bubbles and the blood can be discharged from the bottle body 1 together with the physiological saline 7, thereby effectively separating the air bubbles and the blood.

Preferably, the bottle 1 is provided with two vents 4. Set up two gas vents 4 on bottle 1, be convenient for like this carry out the circulation operation of negative pressure saline, be favorable to improving the precipitation efficiency of bubble, accelerate the disengaging process of bubble and blood.

Preferably, bottle lid 3 and bottle 1 are welding or bonding to ensure zonulae occludens between bottle lid 3 and the bottle 1, can make and do not dash bottle lid 3 after injecting into normal saline 7 in the bottle 1, in order to ensure the stability of device structure, guarantee that normal saline 7 can not reveal, in order to provide stable environment to the bubble operation of getting rid of blood.

On the basis of the above embodiment, it is preferable that the semipermeable membrane 2 is a hose, and both ends of the hose are respectively communicated with the two through holes.

It should be noted that, the physiological saline 7 is injected into the bottle body 1 through the exhaust port 4, the semipermeable membrane 2 is wetted, then, the two through holes at the bottom of the bottle cap 3 are respectively communicated with the blood inlet 5 and the blood outlet 6, so that blood can enter the through holes from the blood inlet 5 and then enter the inlet of the hose, and then the blood can flow along the hose, and the blood flow rate becomes slow along with the increase of the pipe diameter in the flowing process, the pressure becomes small, so that air bubbles in the blood are precipitated, and the air bubbles reach one side of the physiological saline 7 through the semipermeable membrane 2, and then the air bubbles rise and gather at the top of the bottle body 1 and are discharged from the exhaust port 4, or the air bubbles are pumped out of the exhaust port 4 through an air pumping device. The blood without bubbles continuously flows to the outlet of the hose, then flows to the other through hole and finally flows to the blood outlet 6, thereby effectively realizing the bubble removal operation of the blood and avoiding the blood retention phenomenon.

Preferably, the bottle cap 3 is connected with the hose in a sealing manner.

The two through holes of the cap 3 are respectively communicated with the two ends of the hose, and the outer peripheral part of the end part of the hose is hermetically connected with the inner peripheral part of the through hole of the cap 3, so that the blood is effectively prevented from leaking to the physiological saline 7 side.

On the basis of the above embodiment, preferably, the cavity 8 is a sphere structure, and the two through holes are located in the sphere structure, and the sphere structure can be an ellipsoid or a sphere.

It should be noted that, the cavity 8 is the spheroid structure and indicates that pellicle 2 sets up to the structure similar to the balloon, sets up two through-holes in the gas blowing mouthful department of balloon, and, can set up the connecting pipe in the through-hole department of bottle lid 3, stretch into in the cavity 8 through the connecting pipe, in order to ensure that blood can flow in pellicle 2, and make the blood of having appeared the bubble can follow pellicle 2 and flow, in order to realize blood flow circulation, avoid appearing the blood detention phenomenon. The sphere structure that is enclosed by pellicle 2 and forms can provide a space for blood for bubble in the blood obtains releasing, and after the bubble appeared and arrived physiological saline 7 one side through pellicle 2, the bubble can be taken away along with negative pressure saline together, or the bubble can rise to gas vent 4, outwards discharge again automatically. Moreover, the working principle that the semipermeable membrane 2 is arranged into a spherical structure is similar to the working principle that the semipermeable membrane 2 is arranged into a hose, and the description is omitted here.

Preferably, the bottle cap 3 is in sealing connection with the ball structure, so as to effectively prevent blood from leaking to the side of the physiological saline 7.

The shape, structure, size, material and the like of the hose and the ball structure can be determined according to actual conditions and actual requirements in the actual application process.

Still need to explain, the utility model provides a semi-isolation formula artery and vein kettle device adopts pellicle 2 to realize the blood bubble separation. Moreover, the device effectively isolates air from blood by using the physiological saline 7, and the internal pressure of the bottle body 1 is set to be negative pressure, so that the air separation in the blood is accelerated, the contact time of the blood and the air is reduced, and the possibility of drying and coagulating the blood is further reduced.

In addition, the semipermeable membrane 2 of the device is provided with the cavity 8 convenient for blood flowing, the cavity 8 can effectively improve the blood flowing direction in the arteriovenous pot, the blood stagnation and coagulation phenomena are reduced, the blood chamber capacity is also effectively reduced, and the device can realize the bubble separation operation by utilizing less blood. Moreover, in special cases, the operator can change the pressure, temperature, composition, etc. of the saline 7 to create a better degassing environment, so as to facilitate better pretreatment of the blood and more stable development of the dialysis treatment.

In addition, it should be noted that the directions and positional relationships indicated by "top and bottom", "inside and outside" and the like in the present application are based on the directions and positional relationships shown in the drawings, and are only for the convenience of simplifying the description and facilitating the understanding, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed in a specific direction and operate, and thus, should not be construed as limiting the present invention.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The utility model provides an arbitrary compound mode of all embodiments all is in this utility model's a protection scope, does not do here and gives unnecessary details.

The above is to the semi-isolated arteriovenous pot device provided by the utility model is introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (8)

1. A semi-isolated artery and vein kettle device is characterized by comprising: a pellicle (2) and be used for closing for loading bottle (1) of normal saline (7), being equipped with cavity (8) that encloses into the blood flow bottle lid (3) of bottle (1), the top of bottle (1) is equipped with gas vent (4), the bottom of bottle (1) is equipped with bottle lid (3), the bottom of bottle lid (3) is equipped with two through-holes, the through-hole communicates with blood entry (5), blood export (6) of circulation blood way respectively, pellicle (2) are located in bottle (1), just cavity (8) with the through-hole intercommunication.

2. A semi-isolated arteriovenous pot device according to claim 1 wherein the internal pressure of the body (1) is a negative pressure.

3. A semi-isolated arteriovenous pot device according to claim 2 wherein the bottle body (1) is provided with two of the vents (4).

4. A semi-isolated arteriovenous pot device according to claim 3 wherein the bottle cap (3) is welded or bonded to the body (1).

5. A semi-isolated arteriovenous pot device as claimed in any one of claims 1 to 4 wherein the semi-permeable membrane (2) is a flexible tube having opposite ends in communication with the two through holes, respectively.

6. A semi-isolated arteriovenous pot device as claimed in claim 5 in which the cap (3) is sealingly connected to the hose.

7. A semi-isolated arteriovenous pot device as claimed in any one of claims 1 to 4 in which the cavity (8) is of spherical construction.

8. A semi-isolated arteriovenous pot device as claimed in claim 7 in which the cap (3) is sealingly connected to the ball structure.

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