CN210494738U

CN210494738U - Blood color detection device of dialysis machine

Info

Publication number: CN210494738U
Application number: CN201920948670.4U
Authority: CN
Inventors: 黄浩; 贺磊; 曾祥黎; 何文昌; 黄梅; 沈莹; 李墨奇; 黄唯麟
Original assignee: Second Affiliated Hospital Army Medical University
Current assignee: Second Affiliated Hospital Army Medical University
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-05-12
Anticipated expiration: 2029-06-21

Abstract

The utility model provides a dialysis machine blood color detection device, including image acquisition device, the image analysis system, alarm control system, image acquisition device is including the shading shell of parcel outside returning the blood vessel, shading shell internal fixation has light source and camera, camera and image analysis system signal connection, the image analysis system links to each other with alarm control system signal, the image analysis system is including the RGB identification module who is arranged in discerning the blood color in the blood vessel image that returns that the camera was clapped, alarm control system contains the contrast module that is used for contrasting RGB data and the alarm module who is used for sending alarm signal. The utility model provides a more convenient judgement stops equipment of blood return when, because the blood colour reaches the standard and can report to the police, consequently medical personnel need not to pay close attention to the blood state in real time, has greatly reduced intensity of labour, and adopts the instrument discernment colour to improve the precision for the visual observation relatively, in time terminate the dialysis after the warning and also can reduce the excessive loss of beneficial component in the blood to a certain extent.

Description

Blood color detection device of dialysis machine

Technical Field

The utility model belongs to the hemodialysis field especially relates to dialysis machine auxiliary assembly.

Background

Hemodialysis (hemodynamics), clinically means the removal of some of the waste products in the blood through a semi-permeable membrane. Hemodialysis is one of the safer, easy-to-use and widely-applied blood purification methods. Dialysis refers to the movement of solutes from a highly concentrated solution to a less concentrated solution through a semi-permeable membrane. Hemodialysis involves the movement of solutes and the movement of water, i.e., the exchange of substances between blood and dialysate in a dialyzer (artificial kidney) by means of semipermeable membrane contact and concentration gradients, causing metabolic wastes and excess electrolytes in the blood to move towards the dialysate, and calcium ions, bases, etc. in the dialysate to move towards the blood. If the mixed liquid of albumin and urea is put into a dialyzer and the outside of the dialyzer is soaked by water, the urea in the dialyzer tube can move to the water outside the dialyzer tube through the artificial kidney membrane pores, and albumin molecules are large and cannot pass through the membrane pores. The phenomenon of substance movement in which small molecular substances can pass through but large molecular substances cannot pass through a semipermeable membrane is called diffusion. The basic principle of hemodialysis is the method of clinically separating and purifying blood by diffusion phenomenon to achieve the purpose of purification.

Dialysis for medical use is broadly divided into two categories: hemodialysis and peritoneal dialysis. Hemodialysis (Hemodialysis), called Hemodialysis for short, is also called artificial kidney and kidney washing in popular terms, and is one of the blood purification technologies. The semi-permeable membrane principle is utilized, and the purposes of purifying blood and correcting water electrolyte and acid-base balance are achieved by diffusing and removing various harmful and redundant metabolic wastes and excessive electrolytes in human bodies.

The hemodialysis machine is divided into a blood monitoring alarm system and a dialysate supply system. The blood monitoring and alarming system comprises a blood pump, a heparin pump, arteriovenous pressure monitoring, air monitoring and the like; the dialysate supply system comprises a temperature control system, a liquid preparation system, a degassing system, a conductivity monitoring system, an ultrafiltration monitoring system, a blood leakage monitoring system and the like. The main monitoring and alarm system is all for guaranteeing the safety of dialysis process, the liquid system of joining in marriage is for making the dislysate maintain suitable concentration, blood pump control blood flow, the heparin pump is injected a certain amount of heparin into blood and is prevented that blood from coagulating in vitro, the bubble in the blood is detached through the negative pressure to the monitoring of degasification system cooperation air, temperature control system makes the blood that flows back into in the blood vessel be close to body temperature, the conductivity monitoring is the electrolyte content in guaranteeing the dislysate and is stable, prevent that excessive dehydration of blood that the dislysate concentration leads to from taking place, the monitoring of leaking blood is whether there is the blood infiltration to need the scram through the light transmissivity of monitoring dislysate pipe.

The off-machine blood return after the dialysis is finished is mainly to select the color change of the arterial end pipeline during the blood return according to experience so as to roughly judge the flushing amount of the physiological saline during the blood return. If the saline is washed too much, the amount of the returned water of the patient is increased, so that the sufficient dialysis of the patient is not facilitated, and therefore how to more conveniently judge the proper time for the dialysis blood return is an urgent problem to be solved.

SUMMERY OF THE UTILITY MODEL

In order to judge the proper end time of the dialysis process more conveniently, the utility model discloses a dialysis machine blood color detection device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a dialysis machine blood color detection device, includes image acquisition device, image analysis system, alarm control system, image acquisition device is including the shading shell of parcel outside returning the blood vessel, and shading shell internal fixation has light source and camera, the camera with image analysis system signal connection, image analysis system with alarm control system signal links to each other, image analysis system is including the RGB identification module who is arranged in the blood vessel image of returning that the discernment camera was clapped, alarm control system contains the contrast module that is used for contrasting RGB data and the alarm module who is used for sending alarm signal.

Compared with the prior art, the utility model discloses following beneficial effect has:

the use of the light shielding shell reduces the interference of external environment light on the collected image, and the light source in the light shielding shell provides stable illumination. The camera regularly shoots a picture and transmits a signal to the image analysis system, the image analysis system identifies the RGB value of the blood return vessel in the picture and transmits the RGB value to the alarm control system, the alarm control system compares the value with a preset range, and if the RGB value falls into the preset range, an alarm is started to indicate that the termination of dialysis can be considered. The utility model provides a more convenient judgement stops equipment of blood return when, because the blood colour reaches the standard and can report to the police, consequently medical personnel need not to pay close attention to the blood state in real time, has greatly reduced intensity of labour, and adopts the instrument discernment colour to improve the precision for the visual observation relatively, in time terminate the dialysis after the warning and also can reduce the excessive loss of beneficial component in the blood to a certain extent.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of the blood color detection device of the dialysis machine of the present invention.

Fig. 2 is a schematic view of the structure of the light-shielding shell of the present invention.

Fig. 3 is the schematic diagram of the color comparison card of the present invention.

Reference numerals in the drawings of the specification include: blood return pipe M, shading shell 1, camera 2, light source 3, image analysis system 4, alarm control system 5, vacuum pump 6, elastic silica gel 7, louvre 8, major arc shape elasticity collude 9, polychrome card 10.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:

as fig. 1, the utility model discloses a dialysis machine blood color detection device, including image acquisition device, image analysis system 4, alarm control system 5, image acquisition device is including wrapping up shading shell 1 outside returning blood vessel M, and 1 internal fixation of shading shell has light source 3 and camera 2, camera 2 with 4 signal connection of image analysis system, image analysis system 4 with alarm control system 5 signal links to each other, image analysis system 4 is including the RGB identification module who is arranged in the blood colour in the blood vessel M image that returns that is used for discerning camera 2 claps, alarm control system 5 contains the contrast module that is used for contrasting RGB data and the alarm module who is used for sending alarm signal.

The use of the light shielding shell reduces the interference of external environment light on the collected image, and the light source in the light shielding shell provides stable illumination. The camera regularly shoots a picture and transmits a signal to the image analysis system, the image analysis system identifies the RGB value of the blood return pipe in the picture and transmits the RGB value to the alarm control system, the alarm control system compares the value with a preset range, and if the RGB value falls into the preset range, the alarm is started to indicate that the blood return can be considered to be stopped. The utility model provides a more convenient judgement stops equipment of blood that returns when, because the blood colour reaches the standard and can report to the police, consequently medical personnel need not to pay close attention to the blood state in real time, has greatly reduced intensity of labour, and adopts the instrument discernment colour to observe for the naked eye and has improved the precision, in time terminate the excessive loss of blood beneficial component also can reduce to a certain extent in the blood after reporting to the police.

Preferably, as shown in fig. 2, the shading shell 1 comprises an upper shell and a lower shell which are buckled with each other, the upper shell and the lower shell form a box shape, two opposite surfaces of a seam of the upper shell and the lower shell form a coaxial circular through hole, and an elastic silica gel 7 is fixed at the edge of the circular through hole. In order not to hinder the cleaning and replacement of the device, the light shielding shell 1 adopts a detachable design, a circular through hole is used for the return blood vessel M to pass through, and the elastic silica gel 7 at the edge of the circular through hole is used for fixing and preventing slipping.

Preferably, the shading shell 1 is provided with a plurality of heat dissipation holes 8 on the opposite side of the light source 3, the pipeline of the shading shell 1 is communicated with a vacuum pump 6, and the heat dissipation holes 8 are covered with black filter cloth (not shown in the figure). The vacuum pump 6 and the heat dissipation holes 8 are matched to ventilate and dissipate heat in the shading shell 1, so that the influence of heat dissipated and accumulated by the camera 2 and the light source 3 which continuously work on blood return temperature is avoided.

Preferably, a temperature sensor is further arranged in the shading shell 1, and the temperature sensor is in signal connection with the vacuum pump 6. The temperature inside the light shielding case 1 is kept substantially constant by the linkage of the temperature sensor and the vacuum pump 6.

Preferably, an illuminance sensor is further arranged in the shading shell 1, and the illuminance sensor is in signal connection with the alarm control system 5. When the illumination of the light source 3 is insufficient, an operator is reminded to replace the light source 3, so that the stability of the light source 3 is kept, and the contrast of the blood color is ensured.

Preferably, as shown in fig. 3, the blood circulation test card further comprises a color comparison card clamped on the blood return tube M, wherein the color comparison card comprises a multicolor card and a clamping piece fixed on the multicolor card, the clamping piece is two major arc elastic hooks, and the inner diameter of the major arc elastic hook is slightly smaller than the outer diameter of the blood return tube M. The setting of colour comparison card can make things convenient for the back medical personnel that reports to the police to further confirm that the dialysis has met the requirement, whether can stop the blood return procedure, and through medical personnel's reconfirmation judgement, the wrong warning that can avoid system's trouble to lead to influences the dialysis blood return time. The clamping piece is required to be fixed stably and convenient to detach, and the inner diameter of the blood return pipe M cannot be influenced to influence the blood return speed, so that the size of the arc-shaped elastic hook is set according to the size of the blood return pipe M.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a dialysis machine blood color detection device which characterized in that: including image acquisition device, image analysis system, alarm control system, image acquisition device is including the shading shell of parcel outside returning the blood vessel, and shading shell internal fixation has light source and camera, the camera with image analysis system signal connection, image analysis system with alarm control system signal links to each other, image analysis system is including the RGB identification module who is arranged in the blood colour of returning the blood vessel image that the discernment camera was shot, alarm control system contains the contrast module that is used for contrasting RGB data and the alarm module who is used for sending alarm signal.

2. The hemochromatism detection apparatus of a dialysis machine according to claim 1, characterized in that: the shading shell comprises an upper shell and a lower shell which are mutually buckled, the upper shell and the lower shell form a box shape, two opposite surfaces of the seam of the upper shell and the lower shell form a coaxial circular through hole, and elastic silica gel is fixed at the edge of the circular through hole.

3. The hemochromatism detection apparatus of a dialysis machine according to claim 2, characterized in that: the shading shell is provided with a plurality of radiating holes on the opposite side of the light source, the shading shell is communicated with a vacuum pump through a pipeline, and black filter cloth covers the radiating holes.

4. The hemochromatism detection apparatus of a dialysis machine according to claim 3, characterized in that: and a temperature sensor is also arranged in the shading shell and is in signal connection with the vacuum pump.

5. The hemochromatism detection apparatus of a dialysis machine according to claim 1, characterized in that: and an illumination sensor is also arranged in the shading shell and is in signal connection with the alarm control system.

6. The hemochromatism detection apparatus of a dialysis machine according to claim 1, characterized in that: still include the color comparison card of joint on the blood return pipe, the color comparison card includes polychrome card and fixes the joint spare on polychrome card, the joint spare is two major arc elasticity colludes, the internal diameter that the major arc elasticity colluded is slightly less than the external diameter of blood return pipe.