Venous bloodletting treatment apparatus after finger replantation and method of using the same

Abstract

The application belongs to the technical field of biological medicine, and particularly relates to a severed finger replantation postoperative venous bloodletting therapeutic instrument and a use method, which comprises a double-channel peristaltic pump and a venous bloodletting treatment chamber. The double-channel peristaltic pump, the bloodletting treatment chamber, an infusion bag and a drainage bag are connected through corresponding channels. When the application is used, heparin normal saline in the infusion bag slowly flows to the venous bloodletting treatment chamber under the accurate control of the double-channel peristaltic pump. The venous bloodletting treatment chamber is closely combined with a bloodletting incision on the finger, so that the venous bloodletting treatment chamber is filled with heparin normal saline, bloodletting incision closure caused by blood coagulation can be avoided, and the mixture of heparin normal saline and venous blood is drained to the drainage bag under the accurate control of the double-channel peristaltic pump. Through the operation, the venous blood of the replanted finger body can be ensured to slowly and smoothly flow out at a pre-set bloodletting speed, the survival rate of the replanted finger body is improved, tissue excessive damage and bloodletting incision pollution are avoided, the pain of the patient is reduced, and the workload of medical staff is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of biological medicine, and particularly relates to a venous bloodletting therapeutic instrument for finger replantation and a use method thereof. BACKGROUND

[0002] In the finger replantation operation, some patients have seriously damaged veins and lose the conditions of anastomosis, and some patients repeatedly have venous crisis, and the veins cannot be recovered through multiple explorations, so the venous crisis occurs. In this case, the venous blood in the replanted finger body accumulates, only arterial blood enters the replanted finger body, the venous blood cannot return, and the tension of the replanted finger body is further increased, the arterial blood also cannot enter the finger body, the blood circulation is stagnant, and finally the arterial embolism occurs, and the replantation fails. When the venous crisis occurs and there is no condition to explore and recover the venous blood, the effective treatment method is venous bloodletting, that is, a certain depth incision is made on the replanted finger body, so that the venous blood can continuously and slowly flow out, and the tension in the replanted finger body is reduced. In this way, after the arterial blood flows into the replanted finger body, the venous blood is formed through microcirculation and flows out slowly through the bloodletting incision. After about one week of bloodletting operation, the blood circulation of the replanted finger body is maintained, and the effective venous collateral circulation is established between the replanted finger body and the proximal finger body, so that the replanted finger body is survived.

[0003] However, the above-mentioned traditional bloodletting method has many disadvantages:

[0004] (1) The venous bloodletting is generally intermittent, that is, every time interval, when the tension of the finger body is increased or the color is darkened, a sterile needle is used to gently open the incision, and the venous blood is discharged. At the beginning, the blood is dark red, when the fresh red blood starts to flow out, a dry cotton ball is used to press and stop the bleeding. In this way, the bloodletting speed is difficult to accurately control, and from the normal physiological process of human tissue, the intermittent blood supply is not conducive to the survival of the tissue.

[0005] (2) The coagulated incision needs to be repeatedly opened by the sterile needle, and in this process, the incision will be deeper and deeper, and some even reach the bone, so that even if the finger body is survived, part of the finger body will be necrotic or deformed.

[0006] (3) For the patients with continuous finger nerves, the process of opening the incision by the needle will cause great pain to the patients, and the blood vessel spasm caused by the pain will also reduce the survival rate of the replantation.

[0007] (4) The bloodletting operation is generally completed by doctors or nurses, and the bloodletting interval is sometimes as short as 20 minutes, which is undoubtedly a huge workload.

[0008] (5) The sterile dressing around the phlebotomy process will be often wet, which is easy to cause the phlebotomy incision to be contaminated or even infected.

[0009] In summary, the traditional phlebotomy method is difficult to accurately control the phlebotomy speed, and the phlebotomy process cannot be sustained and stable, which is easy to cause irreversible damage, necrosis or deformity of part of the finger body, part of the patients will also suffer from severe pain, and frequent phlebotomy operation also occupies a large amount of medical and nursing resources, and the contamination or even infection of the phlebotomy incision is also a disadvantage, therefore, an automatic device capable of accurately controlling the venous phlebotomy is urgently needed to increase the survival rate of replantation, improve the replantation effect, reduce the pain of patients and liberate the medical and nursing resources. SUMMARY

[0010] The purpose of the present application is to provide a severed finger replantation postoperative venous phlebotomy therapeutic instrument to solve the technical problems existing in the prior art.

[0011] In order to achieve the above technical purpose, the technical scheme of the present application is:

[0012] The severed finger replantation postoperative venous phlebotomy therapeutic instrument comprises a double-channel peristaltic pump and a venous phlebotomy treatment chamber, the double-channel peristaltic pump is provided with a pump head, a controller, an alarm device, an infusion channel and a drainage channel, the pump head is connected with the infusion channel and the drainage channel, the venous phlebotomy treatment chamber is provided with an infusion port and a drainage port, the inlet of the infusion channel is connected with a heparin infusion bag through a pipeline, the outlet of the infusion channel is connected with the infusion port of the venous phlebotomy treatment chamber through a pipeline, the drainage port of the venous phlebotomy treatment chamber is connected with the inlet of the drainage channel through a pipeline, and the outlet of the drainage channel is connected with a drainage bag through a pipeline.

[0013] The double-channel peristaltic pump is provided with a flow rate operation button for setting the infusion speed and the drainage speed, and a display screen for displaying the infusion speed and the drainage speed, the flow rate operation button and the display screen are respectively connected with the controller, and the controller sends a control instruction to the pump head after receiving the signal of the infusion speed and the drainage speed set by the flow rate operation button.

[0014] As a further improvement, the controller is provided with a calculation module for calculating the difference between the drainage speed and the infusion speed, and the flow rate difference between the drainage speed and the infusion speed is displayed on the display screen, and the difference is the venous phlebotomy speed of the phlebotomy incision of the finger body.

[0015] As a further improvement, the double-channel peristaltic pump is provided with a capacity operation button for inputting the capacity of the heparin infusion bag and the drainage bag and a reset button, the capacity operation button is connected with the controller, and the controller is provided with a flow calculation module and an alarm flow calculation module for calculating the infusion flow and the drainage flow.

[0016] As a further improvement, the infusion channel and the drainage channel are respectively provided with pressure sensors, the pressure sensors are connected to the controller, the controller receives the pressure signals sent by the pressure sensors, and after processing, sends an alarm signal to the alarm device and a control command to the pump head.

[0017] As a further improvement, the venous bloodletting treatment chamber is made of soft medical silicone material, and adjustable elastic bands for being sleeved on fingers are arranged on the edges of the venous bloodletting treatment chamber, and the infusion port and the drainage port of the venous bloodletting treatment chamber are arranged at two ends of the venous bloodletting treatment chamber.

[0018] As a further improvement, the infusion pipeline and the drainage pipeline between the double-channel peristaltic pump and the venous bloodletting treatment chamber are combined into a double-cavity pipeline, and an exchange interface for adjusting the flow direction of the double-cavity pipeline is arranged on the double-cavity pipeline.

[0019] As a further improvement, the infusion pipeline, the drainage pipeline, the heparin infusion bag, the drainage bag, the venous bloodletting treatment chamber and the pipeline connected for use are all disposable sterile supplies.

[0020] The application also provides a use method of the venous bloodletting treatment instrument after finger replantation, which comprises the following steps:

[0021] (1) connecting the heparin infusion bag and the inlet of the infusion channel of the double-channel peristaltic pump through a pipeline, connecting the outlet of the drainage channel of the double-channel peristaltic pump and the drainage bag through a pipeline, connecting the outlet of the infusion channel of the double-channel peristaltic pump and the infusion port of the venous bloodletting treatment chamber through a pipeline, and connecting the inlet of the drainage pipeline of the double-channel peristaltic pump and the drainage port of the venous bloodletting treatment chamber through a pipeline;

[0022] (2) fixing the venous bloodletting treatment chamber on the bloodletting incision of the finger through the elastic bands;

[0023] (3) setting the infusion speed and the drainage speed of the double-channel peristaltic pump, and the venous bloodletting speed is equal to the difference between the drainage speed and the infusion speed;

[0024] (4) running the pump head of the double-channel peristaltic pump, so that the heparin physiological saline in the heparin infusion bag enters the venous bloodletting treatment chamber from the infusion channel, and the mixture of the heparin physiological saline and the venous blood in the venous bloodletting treatment chamber enters the drainage bag from the drainage channel.

[0025] As a further improvement, in the step (1), the infusion pipeline and the drainage pipeline of the double-channel peristaltic pump are connected to the infusion port and the drainage port of the venous bloodletting treatment chamber through a double-cavity pipeline, and an exchange interface is arranged on the double-cavity pipeline, and by adjusting the exchange interface, the infusion port of the venous bloodletting treatment chamber is a low port, and the drainage port of the venous bloodletting treatment chamber is a high port, so that the heparin saline solution enters from the low port of the venous bloodletting treatment chamber, and the mixture of the heparin saline solution and the venous blood flows out from the high port, which is beneficial to the discharge of air and the sufficient contact of the heparin saline solution with the bloodletting incision.

[0026] As a further improvement, in the step (4), the double-channel peristaltic pump is provided with a pressure sensor for monitoring the pressure of the infusion channel and the drainage channel, and a preset pressure alarm value is set, and when the pressure exceeds the alarm value, an alarm signal is sent, and the double-channel peristaltic pump is controlled to stop running, and after the fault is eliminated, the double-channel peristaltic pump continues to run.

[0027] The capacity of the heparin infusion bag and the capacity of the drainage bag are set by the double-channel peristaltic pump, the double-channel peristaltic pump calculates the alarm value of the capacity, when the infusion flow rate and the drainage flow rate approach the set capacity, an alarm signal is sent, prompting to replace the heparin infusion bag or the drainage bag, when the set capacity is reached, the pump head is controlled to stop running, the heparin infusion bag or the drainage bag is replaced, and after the reset button is pressed, the pump head continues to run.

[0028] Due to the adoption of the above technical solutions, the application has the following advantages:

[0029] (1) The venous bloodletting treatment instrument provided by the application can control the heparin saline solution in the heparin infusion bag to flow to the venous bloodletting treatment chamber at a set flow rate under the control of the double-channel peristaltic pump, the venous bloodletting treatment chamber covers the bloodletting incision on the finger and tightly fits the finger body around the bloodletting incision, so that the heparin saline solution in the venous bloodletting treatment chamber can fully contact the bloodletting incision, which can effectively inhibit the bloodletting incision from closing due to blood clotting, ensure that the venous blood can flow out slowly and smoothly, avoid the need to frequently use a needle to cut the bloodletting incision in the traditional method, reduce the pain of the patient, avoid excessive damage to the local tissue, and save medical and nursing resources.

[0030] (2) The drainage pipeline connected to the venous bloodletting treatment chamber can control the mixture of the heparin saline solution and the venous blood to be drained to the drainage bag under the control of the double-channel peristaltic pump, which can avoid the wetting and pollution of the dressing in the operation area.

[0031] (3) In specific use, the flow rates of the double-channel peristaltic pump infusion channel and the drainage channel can be set in advance, the flow rate of the drainage channel should be greater than that of the infusion channel, and the difference between the flow rates is the speed of venous bloodletting, that is, venous bloodletting speed = drainage speed - infusion speed. When the venous bleeding speed of the bloodletting incision is equal to the preset bloodletting speed, the pressure in the venous bloodletting treatment chamber is about 0; when the venous bleeding speed is greater than the preset bloodletting speed, the pressure in the venous bloodletting treatment chamber is positive, which can inhibit the venous bleeding speed; when the venous bleeding speed is less than the preset bloodletting speed, the pressure in the venous bloodletting treatment chamber is negative, which plays a role of suction and can accelerate the venous bleeding speed. By setting the flow rates of the double-channel peristaltic pump infusion channel and the drainage channel in advance, the venous blood of the replanted finger can be accurately and smoothly discharged at a preset speed, the stable blood circulation in the replanted finger is maintained, and the replant survival rate is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0033] Figure 2 is a flowchart of an embodiment of the present application;

[0034] Among them, 1-double channel peristaltic pump, 11-inlet of infusion channel, 12-outlet of infusion channel, 13-inlet of drainage channel, 14-outlet of drainage channel, 15-display screen, 16-flow rate operation button, 17-alarm device, 18-volume operation button, 2-venous bloodletting treatment chamber, 21-infusion port, 22-drainage port, 23-adjustable elastic band, 3-heparin infusion bag, 4-drainage bag, 5-double lumen pipeline, 51-switching interface. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0036] As Figure 1 and Figure 2 shown together, the venous bloodletting treatment instrument after finger replantation includes a double-channel peristaltic pump 1 and a venous bloodletting treatment chamber 2. The double-channel peristaltic pump 1 is provided with a pump head, a controller, an alarm device 17, an infusion channel and a drainage channel. The pump head is connected to the infusion channel and the drainage channel. The venous bloodletting treatment chamber 2 is provided with an infusion port 21 and a drainage port 22. The inlet 11 of the infusion channel is connected to a heparin infusion bag 3 through a pipeline. The outlet 12 of the infusion channel is connected to the infusion port 21 of the venous bloodletting treatment chamber 2 through a pipeline. The drainage port 22 of the venous bloodletting treatment chamber 2 is connected to the inlet 13 of the drainage channel through a pipeline. The outlet 14 of the drainage channel is connected to a drainage bag 4 through a pipeline.

[0037] The double-channel peristaltic pump is provided with a flow rate operation button 16 for setting the infusion speed and the drainage speed, and a display screen 15 for displaying the infusion speed and the drainage speed, and the flow rate operation button and the display screen are connected with a controller, and the controller sends control instructions to the pump head after receiving the signals of the infusion speed and the drainage speed set by the flow rate operation button.

[0038] The severed finger replantation postoperative venous bloodletting therapeutic instrument provided by the application is characterized in that the heparin normal saline in the heparin infusion bag flows to the venous bloodletting treatment chamber at a set flow rate under the control of the double-channel peristaltic pump, the venous bloodletting treatment chamber covers the bloodletting incision on the finger and is tightly attached to the finger body around the bloodletting incision, so that the heparin normal saline in the venous bloodletting treatment chamber fully contacts the bloodletting incision, effectively inhibits the bloodletting incision from being closed due to blood clotting, ensures that the venous blood can slowly flow out, avoids the need for frequent bloodletting with a needle in the traditional method, reduces the pain of the patient, avoids excessive damage to the local tissue, and saves medical and nursing resources.

[0039] The drainage pipeline connected with the venous bloodletting treatment chamber can make the mixture of the heparin normal saline and the venous blood flow to the drainage bag under the control of the double-channel peristaltic pump, so as to avoid the soaking and pollution of the dressing in the operation area.

[0040] In the embodiment, the controller is provided with a flow rate difference calculation module for calculating the flow rate difference between the drainage speed and the infusion speed, and the flow rate difference is displayed on the display screen, and the flow rate difference is the venous bloodletting speed of the bloodletting incision of the replanted finger body, and the appropriate drainage speed, infusion speed and venous bloodletting speed are set according to the specific finger body.

[0041] In specific use, the flow rates of the infusion channel and the drainage channel of the double-channel peristaltic pump can be preset, the flow rate of the drainage channel should be greater than that of the infusion channel, and the difference between the flow rates is the venous bloodletting speed, that is, the venous bloodletting speed = the drainage speed - the infusion speed.

[0042] When the venous bleeding speed of the bloodletting incision is equal to the preset bloodletting speed, the pressure in the venous bloodletting treatment chamber is about 0; when the venous bleeding speed is greater than the preset bloodletting speed, the pressure in the venous bloodletting treatment chamber is positive, which can inhibit the venous bleeding speed; when the venous bleeding speed is less than the preset bloodletting speed, the pressure in the venous bloodletting treatment chamber is negative, which plays a role of suction and can accelerate the venous bleeding speed. By presetting the flow rates of the infusion channel and the drainage channel of the double-channel peristaltic pump, the venous blood of the replanted finger body can be accurately and smoothly discharged at a preset speed, the stable blood circulation in the replanted finger body is maintained, and the replantation survival rate is greatly improved.

[0043] In the embodiment, the double-channel peristaltic pump is provided with a capacity operation button 18 and a reset button for inputting the capacity of the heparin infusion bag and the drainage bag, and the capacity operation button and the reset button are connected to a controller, and the controller is provided with a flow calculation module and an alarm flow calculation module for calculating the infusion flow and the drainage flow, specifically, the remaining capacity of the heparin infusion bag and the drainage bag can be monitored, an alarm signal is sent before the heparin infusion bag is emptied, prompting to replace a new heparin infusion bag, and an alarm signal is sent before the drainage bag is filled, prompting to replace a new drainage bag.

[0044] In the embodiment, the infusion channel and the drainage channel are respectively provided with pressure sensors, the pressure sensors are respectively connected to the controller, the controller receives the pressure signals sent by the pressure sensors, and after processing, sends alarm signals to the alarm device and control instructions to the pump head, specifically, when the pressure is abnormal, the alarm device sends an alarm signal, and the pump head stops running at the same time, preventing accidental injury

[0045] In the embodiment, the venous bloodletting treatment chamber is made of soft medical silicone material, is non-toxic and hygienic, and is soft and closely attached to the finger, an adjustable elastic band 23 for sleeving on the finger is arranged on the edge of the venous bloodletting treatment chamber, the edge of the venous bloodletting treatment chamber can be closely attached to the finger by means of the adjustable elastic band, and the infusion port and the drainage port on the venous bloodletting treatment chamber are arranged at two ends of the venous bloodletting treatment chamber, so that the heparin saline is fully contacted with the bloodletting incision, the incision is prevented from coagulating and closing, and the venous blood is facilitated to flow out.

[0046] In the embodiment, the infusion pipeline and the drainage pipeline between the double-channel peristaltic pump and the venous bloodletting treatment chamber are combined into a double-lumen pipeline 5, so that only the double-lumen pipeline is connected between the finger and the equipment, which is simple and clear, and is convenient for management, the double-lumen pipeline is provided with an exchange interface 51 capable of adjusting the flow direction of the double-lumen pipeline, so that the heparin saline is ensured to enter from the low port of the venous bloodletting treatment chamber and the mixed liquid of the heparin saline and the venous blood is ensured to flow out from the high port under different body positions of the patient, which is beneficial to the air discharge and the full contact of the heparin saline with the bloodletting incision.

[0047] In the embodiment, the infusion pipeline, the liquid return pipeline, the heparin infusion bag, the drainage bag, the venous bloodletting treatment chamber and the connected pipelines are disposable sterile supplies, preventing cross infection.

[0048] The use method of the severed finger replantation postoperative venous bloodletting treatment instrument provided by the embodiment of the application includes the following steps.

[0049] (1) connect the heparin infusion bag with the inlet of the infusion channel of the double-channel peristaltic pump through a pipeline, connect the outlet of the drainage channel of the double-channel peristaltic pump with the drainage bag through a pipeline, connect the outlet of the infusion channel of the double-channel peristaltic pump with the infusion port of the intravenous bloodletting treatment chamber through a pipeline, and connect the inlet of the drainage channel of the double-channel peristaltic pump with the drainage port of the intravenous bloodletting treatment chamber through a pipeline, specifically, connect the double-channel peristaltic pump with the intravenous bloodletting treatment chamber by using a double-lumen pipeline, and the double-lumen pipeline is provided with a switching interface, according to the position of the bloodletting treatment chamber, adjust the switching interface to make the infusion port of the intravenous bloodletting treatment chamber as a low port and the drainage port of the intravenous bloodletting treatment chamber as a high port, so that the heparin saline solution enters from the low port of the intravenous bloodletting treatment chamber and the mixture of the heparin saline solution and the venous blood flows out from the high port;

[0050] (2) fix the intravenous bloodletting treatment chamber on the finger bloodletting incision by an elastic belt;

[0051] (3) set the infusion speed and the drainage speed by the double-channel peristaltic pump, specifically, according to the specific use of the double-channel peristaltic pump and the severed finger condition, set the infusion speed as 150 ml / h, the flow rate of the drainage channel as 152 ml / h, and the intravenous bloodletting speed as the difference between the drainage speed and the infusion speed, that is, 152 ml / h-150 ml / h=2 ml / h;

[0052] set the pressure alarm values of the infusion channel and the drainage channel, which can be specifically the value range of the pressure alarm;

[0053] set the capacity of the heparin infusion bag and the capacity of the drainage bag on the double-channel peristaltic pump, and the capacity of the heparin infusion bag is usually 500 ml and the capacity of the drainage bag is usually 1000 ml, so the capacities of the two are set as 500 ml and 1000 ml respectively;

[0054] (4) control the pump head of the double-channel peristaltic pump to run, so that the heparin saline solution in the heparin infusion bag enters the intravenous bloodletting treatment chamber from the infusion channel, and the mixture of the heparin saline solution and the venous blood in the intravenous bloodletting treatment chamber enters the drainage bag from the drainage channel;

[0055] (5) during the running process, when the venous bleeding speed of the incision is equal to the preset bloodletting speed, the pressure in the intravenous bloodletting treatment chamber is about 0, when the venous bleeding speed is greater than the preset bloodletting speed, the pressure in the intravenous bloodletting treatment chamber is positive, which can inhibit the venous bleeding speed, and when the venous bleeding speed is less than the preset bloodletting speed, the pressure in the intravenous bloodletting treatment chamber is negative, which plays a role of suction and can accelerate the venous bleeding speed, through the setting of the infusion speed and the drainage speed, the venous blood of the replanted finger flows out accurately and smoothly at the preset speed, and in the use process, the infusion speed, the drainage speed and the corresponding intravenous bloodletting speed can be adjusted in time according to the specific situation;

[0056] (6) When the flow rate detected by the infusion channel and the drainage channel is about to reach the preset flow rate, an alarm is triggered to replace the heparin infusion bag or the drainage bag in time, and after replacement, the reset button is pressed to continue running the instrument;

[0057] (7) When the pressure of the infusion channel or the drainage channel is abnormal, the pressure sensor alarm is triggered and the pump head operation is stopped to prevent accidental injury, and after the medical staff analyzes the cause and eliminates the fault, the instrument is re-run.

[0058] The specific embodiments of the application described above do not constitute a limitation on the scope of protection of the application. Any various other corresponding changes and modifications made in accordance with the technical concept of the application shall be included in the scope of protection of the claims of the application.

Claims

1. A venous bloodletting therapeutic apparatus after finger replantation surgery, characterized in that, The double-channel peristaltic pump is provided with a pump head, a controller, an alarm device, an infusion channel and a drainage channel, the pump head is connected with the infusion channel and the drainage channel, the intravenous bloodletting treatment chamber is provided with an infusion port and a drainage port, the inlet of the infusion channel is connected with a heparin infusion bag through a pipeline, the outlet of the infusion channel is connected with the infusion port of the intravenous bloodletting treatment chamber through a pipeline, the drainage port of the intravenous bloodletting treatment chamber is connected with the inlet of the drainage channel through a pipeline, and the outlet of the drainage channel is connected with a drainage bag through a pipeline. The double-channel peristaltic pump is provided with flow rate operation buttons for setting infusion speed and drainage speed, and a display screen for displaying infusion speed and drainage speed, the flow rate operation buttons and the display screen are connected with the controller, and the controller sends control instructions to the pump head after receiving signals of the infusion speed and the drainage speed set by the flow rate operation buttons. The infusion channel and the drainage channel are respectively provided with pressure sensors, the pressure sensors are connected with the controller, the controller receives pressure signals sent by the pressure sensors, processes the pressure signals, and sends alarm signals to the alarm device and control instructions to the pump head. The infusion port and the drainage port on the intravenous bloodletting treatment chamber are arranged at two ends of the intravenous bloodletting treatment chamber. The infusion pipeline and the drainage pipeline between the double-channel peristaltic pump and the intravenous bloodletting treatment chamber are combined into a double-cavity pipeline, and the double-cavity pipeline is provided with an exchange interface for exchanging flow directions of the two cavities.

2. The post-replantation venous bloodletting treatment instrument according to claim 1, characterized in that, The controller is provided with a calculation module for calculating a difference between the drainage speed and the infusion speed, and the flow rate difference between the drainage speed and the infusion speed is displayed on the display screen, and the difference is the intravenous bloodletting speed of the bloodletting incision of the replanted finger.

3. The post-replantation venous bloodletting treatment instrument according to claim 1, characterized in that, The double-channel peristaltic pump is provided with capacity operation buttons for inputting capacities of the heparin infusion bag and the drainage bag and a reset button, the capacity operation buttons are connected with the controller, and the controller is provided with a flow calculation module for calculating infusion flow and drainage flow and an alarm flow calculation module.

4. The post-replantation vein bloodletting treatment instrument according to claim 1, characterized in that, The intravenous bloodletting treatment chamber is made of soft medical silica gel material, and the intravenous bloodletting treatment chamber is provided with an adjustable elastic band for sleeving on a finger.

5. The post-replantation vein bloodletting treatment instrument according to claim 1, characterized in that, The infusion pipeline, the drainage pipeline, the heparin infusion bag, the drainage bag, the intravenous bloodletting treatment chamber and the pipelines connected with the components are disposable sterile supplies.

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