CN100435863C - One-way hematodialysis circulating device - Google Patents

Abstract

The present invention relates to a hemodialysis device, particularly to a one-way hematodialysis circulating device. The present invention is characterized in that a fluid infusion pipe rubber pipe (21) arranged between a fluid infusion pipe drip cup (22) and a puncture needle (24) is provided with a fluid infusion pipe regulating valve (23), one end of a spare pipe rubber pipe (26) is connected with a spare pipe drip cup (27), the other end of the spare pipe rubber pipe (26) is connected with a mamillar rubber pipe (25), and a connecting rubber pipe (18) is connected with an interface regulating valve (4). The present invention has the advantages of simple structure, low cost, no occurrence of blockage of hemodialysis circulating pipelines, safety, reliability, high durability, convenient dialysis, convenient use, shortened treatment time and reduction of the mortality rate of patients.

Description

Single channel hemodialysis circulation device

Technical field:

The invention relates to a hemodialysis device, in particular to a single-channel hemodialysis circulation device.

Background technique:

In the mid-1950s, inspired by hemodialysis treatment, hemoperfusion, hemofiltration, blood lipid purification, plasma exchange and other blood purification methods were developed on the basis of hemodialysis. At present, the Japanese Plasauto IQ hemodialysis machine introduced in my country is widely used in clinical practice. However, how to establish an ideal vascular access that is safe, reliable, durable, convenient for dialysis, and less painful to patients during treatment has always been a prominent clinical problem. The working principle and shortcomings of the original hemodialysis circulation device pipeline: the original pipeline extracorporeal circulation starts from the puncture needle of the "artery" (actually, it may be a peripheral artery or vein), and connects the plasma separator through the arterial blood pipeline. The plasma separator was formerly called the artery. The blood circuit, called the venous blood circuit after the plasma separator, draws the arterial or venous blood out of the body through the blood pump, and is separated by the plasma separator. After separation, the concentrated blood containing blood cells and platelets flows into the vein end through the lower port, and the filtered waste liquid after separation is in the Discarded under the drive of the drainage pump. And the whole circulation process is in one pipeline. The arterial and venous ends have no connection ports and cannot form self-reflux circulation, and the spare tube of the original pipeline can only be used for flushing the pipeline when blood coagulation occurs in the pipeline. When the arterial end fails during the treatment, the only option is to re-puncture. When the machine cannot be stopped to prevent blood coagulation during puncture, the blood flow at the arterial end must be replaced by supplementary fluid. If the puncture time is too long, it will cause too much fluid to enter the body, which will increase the burden on the heart. prone to critical illness. Since heparin sodium cannot be added to the supplementary solution for anticoagulation, the content of heparin sodium in the pipeline and separator will also decrease. When the pipeline is connected again, it is easy to cause blood coagulation in the pipeline. Because the tubes are disposable consumables, the economic price is between 3,000 and 4,000 yuan. Once blood coagulation occurs in the tube, the tube will no longer be used, which will inevitably cause heavy economic losses to the patient. When the re-puncture is successful, since there is only one passage at the arterial end, it is necessary to separate the original puncture needle from the arterial end interface before connecting the puncture needle at the new puncture site. The interface is polluted. When the venous end fails during the treatment, you can only choose to puncture again. When the machine cannot be stopped to prevent blood coagulation during the puncture, the returned blood from the venous end must be discarded until the venous end is re-punctured. If successful, you can reconnect. This will inevitably cause the patient's blood loss, excessive blood loss, and in severe cases, the blood pressure will drop rapidly and cause hemorrhagic shock. During the treatment process, if the arterial and venous ends fail at the same time, you can only choose to puncture again. During the puncture, when the machine cannot stop to prevent blood coagulation in the pipeline, there must be supplementary fluid to replace the blood flow at the arterial end, and the tube The blood in the circuit and the separator is discarded from the venous end, and can only be reconnected after the failure of the arterial and venous ends is eliminated. The blood of the patient is damaged, the physical health of the patient is damaged, and the psychological pressure of the patient is increased.

Invention content:

The object of the present invention is to provide a single-channel hemodialysis circulation device with simple structure, low cost, safety and reliability, convenient use, shortened treatment time and reduced patient mortality. The object of the present invention is achieved like this: it comprises arterial nipple type rubber tube 1, arterial tube rubber tube 2, arterial tube drug delivery port 3, interface regulating valve 4, arterial interface rubber tube 5, drug delivery port rubber tube 6, first pressure sensor 7 , arterial jug 8, second baroreceptor 9, I-level membrane separator 10, liquid discarding tube 11, blood cell return tube 12, venous jug baroreceptor 13, venous jug 14, venous tube rubber tube 15, venous tube administration port 16, First regulating valve 17, venous connection hose 18, venous nipple hose 19, warming bag 20, rehydration hose 21, rehydration drip pot 22, rehydration adjustment valve 23, puncture needle 24, spare nipple hose 25, spare Pipe rubber hose 26, spare pipe drip pot 27, second regulating valve 28, spare pipe interface 29. There is a rehydration tube regulating valve 23 on the rehydration tube rubber tube 21 between the liquid rehydration tube dripping pot 22 and the puncture needle 24. One end of the spare tube rubber tube 26 is connected to the spare nipple type rubber tube 25, and the other end passes through the tube dripping pot 27 to the spare tube. Interface 29; the venous connection rubber tube 18 is connected with the arterial interface rubber tube 5 . The invention has the advantages of simple structure, low cost, no blockage of hemodialysis circulation pipeline, safety, reliability, durability, convenient dialysis, convenient use, shortened treatment time, and reduced patient mortality.

Description of drawings:

Fig. 1 is a schematic diagram of the structure principle of the present invention; Fig. 2 is a schematic diagram of the connection structure principle of the spare nipple type rubber hose and the spare hose rubber hose, the spare pipe dripping pot, the spare pipe regulating valve, and the spare pipe interface of the present invention.

Detailed ways:

There is a rehydration tube regulating valve 23 on the rehydration tube rubber tube 21 between the liquid rehydration tube dripping pot 22 and the puncture needle 24. One end of the spare tube rubber tube 26 is connected to the spare nipple type rubber tube 25, and the other end passes through the tube dripping pot 27 to the spare tube. Interface 29; the venous connection rubber tube 18 is connected with the arterial interface rubber tube 5 .

The working process of the present invention is: extracorporeal circulation from the arterial nipple type rubber tube to the arterial tube rubber tube, the first-level membrane separator 10, the venous tube rubber tube 15, and the venous nipple type rubber tube 19 are returned to the human body, and the filtered waste liquid after separation is discharged Discard under pump drive. When the arterial nipple type hose and the venous nipple type hose fail at the same time, in order to prevent coagulation of the I-level membrane separator, the first pressure sensor 7 and the venous pot pressure sensor 13 will alarm the machine to stop, wasting consumables, and the vein connection hose can be connected to the arterial interface The rubber tubes are connected to make the blood in the pipeline form a backflow and stop the drainage pump. Circulation consists of arterial papillary hose, grade I membrane separator, venous hose, and venous connection hose. This allows the circulation to be re-established and the operation of the machine to return to normal. When replacing the supplementary fluid in the original operation and stopping the operation, the hemostatic forceps should be used to block the supplementary fluid from entering the fluid replacement hose 21, and the pipeline of the present invention adds a fluid replacement tube adjustment on the fluid replacement hose 21 between the fluid replacement drip pot 22 and the puncture needle 24 Valve 23, when replacing supplementary fluid like this and stopping operation, directly close control valve and get final product. The procedure can be reduced without hemostatic forceps, which brings convenience to medical staff.

The whole circulation process of the original pipeline is all in one pipeline, and one end of the spare pipe rubber hose 26 of the original pipeline can be connected with the arterial interface rubber hose, and the puncture needle at one end can only be connected to the flushing liquid bottle mouth. It can only be used to flush the tube when blood coagulation occurs in the tube. The rubber tube of the spare tube and the 29 ends of the spare tube interface of the present invention can be connected with the rubber tube of the arterial interface, and the nipple-type contact surface of the nipple-type rubber tube end can be connected with a puncture needle. In this way, one tube can be used for multiple purposes, and can be used to flush the tube when blood coagulation occurs in the pipeline, and can replace the arterial tube to establish a new circulation path. It can also be used together with the arterial hose, thereby solving the problem of needing to puncture the artery due to insufficient blood flow in a venous access in clinical practice and increasing the pain of the patient. The blood flow of the two venous channels is sufficient to complete the entire cycle, which greatly enhances the work efficiency and reduces the problems of shutdown, crash, and blood coagulation caused by insufficient blood flow.

The arterial nipple rubber tube 1 is connected with the puncture needle. The nipple rubber tube is connected with the puncture needle (extracting blood), the arterial nipple rubber tube (in fact, it may be a peripheral artery or vein), and the end of the arterial nipple rubber tube is connected with the I-level membrane separator 10 in a spiral form. , the syringe containing sodium heparin is connected to the rubber tube 6 of the administration port, and the sodium heparin is injected into the arterial jugular rubber tube 8 through the tube, and the first baroreceptor 7 of the arterial jug is directly connected to the sensor to feel the pressure of the arterial jug, and the second baroreceptor 9 of the I-level membrane is directly connected to the beginning The sensor senses the pressure of the separator, and the end is directly connected to the first-level membrane separator 10, the blood cell return tube 12 is spirally connected to the first-level membrane separator 10, and the pressure sensor 13 of the venous pot is directly connected to the sensor to sense the pressure of the venous pot, and the venous nipple type The rubber tube 19 is connected with the puncture needle (reinfusion of blood). The venous connection rubber tube 18 is connected in a spiral manner with the arterial spare tube interface 5 so that the blood can flow back and self-circulate. The puncture needle 24 (with exhaust needle) connected to the mouth of the liquid bottle is connected to the liquid infusion bottle. The regulating valve 23 of the infusion tube can replace the hemostat and is used when stopping the infusion or replacing the liquid bottle. The spare tube interface 29 is connected to the arterial tube in a spiral form. The interface rubber tube 5, when blood coagulation occurs in the pipeline, the flushing fluid can flush the pipeline through this tube, and it can also replace the arterial tube rubber tube 2 and can be used together with the arterial tube rubber tube 2 at the same time. The standby nipple type rubber hose 25 is connected with the puncture needle, and can be connected with the puncture needle. The needle at the joint of the original spare tube sebific tube and the liquid bottle mouth can be changed into the nipple type contact surface that can be connected with the puncture needle, i.e. the spare nipple type sebific tube 25. It only needs to be connected with the puncture needle during use, so as to achieve the purpose of one tube with multiple functions. Add connecting rubber hose 18 at 1510cm place of venous tube rubber hose, this pipe can be connected with interface rubber hose 5, and this pipe can make pipeline form backflow self-circulation. The liquid replenishing pipe regulating valve 23 on the liquid replenishing pipe rubber pipe 21 is used for changing the liquid replenishing bottle and stopping the whole operation, and the reduction procedure cancels the use of the hemostat.

Clinical example: 12 cases in this group, 6 males and 6 females, aged 13 to 70 years old, 4 cases of arterial end (in fact, it may be peripheral artery or vein) failure, 4 cases of venous end failure during treatment , 4 cases of arterial and venous failures at the same time. All patients in this group were treated with direct venipuncture or central venous catheterization. Among them, 6 cases were directly punctured in the median vein of the forearm, and 5 cases were solved by using the pipeline after the present invention, and the treatment was successfully completed. Direct arterial puncture was performed in 2 cases, 1 case was solved by pipeline after using the present invention, and the treatment was successfully completed. 4 cases of central venous intubation, 3 cases of failure were solved by using the pipeline of the present invention, and the treatment was successfully completed. In this group, 3 cases used the original hemodialysis circulation device and 2 cases suffered extreme pain due to repeated direct venipuncture, and the high excitement of the vagus nerve caused the heart rate to drop rapidly below 50 beats/min, thus resulting in the termination of treatment. In one patient with femoral vein intubation, when turning over to clean up excrement, the machine crashed. Because the original pipeline had only one path, it took time to re-puncture and take over, which eventually caused blood coagulation in the pipeline and made it unusable, which brought unnecessary economic burden to the patient. All the other 9 cases used the present invention to solve the failure of the pipeline, and the treatment was successfully completed.

The pipeline of the present invention is mainly composed of an arterial tube rubber tube 2, a venous tube rubber tube 15, a fluid replacement tube rubber tube 21, a drug delivery port rubber tube 6, a liquid discarding tube 11, a monitoring pipeline, an arterial first pressure sensor 7, and a second pressure sensor. 9. The pressure sensor 13 of the venous pot and the spare tube rubber tube 26 are composed of seven main parts. Change the needle at the junction of the original spare tube hose and the liquid bottle mouth into a nipple-type contact surface that can be connected with the puncture needle, that is, the rubber hose at the puncture needle connection port. When used, only need to connect the puncture needle to achieve the multi-purpose purpose of one tube. It can be used to flush the tube when blood coagulation occurs in the tube. When the puncture of the arterial tube fails during the circulation, the spare tube with a puncture needle can be used to quickly re-puncture, directly replacing the arterial tube to save time in clinical operations, in case the amount of liquid entering the body is too large due to the failure of the arterial tube puncture It can also prevent the nipple from being polluted at the junction of the rubber tube and the arterial tube due to the replacement of the puncture site. The rubber hose spare tube of the present invention can also be used together with the arterial hose when the blood flow is insufficient, so as to quickly and effectively solve clinical crashes caused by insufficient blood flow or poor blood vessel conditions, reduce the patient's psychological pressure and pain, and relieve the patient's anxiety. The economic burden, so as to ensure the smooth completion of the operation.

Add a spare tube interface rubber tube at 10cm of the intravenous tube hose, and this tube can be connected with the spare tube interface rubber tube, which can make the pipeline form a self-circulation of backflow. In clinical practice, when the venous tube hose fails, the pipeline can be activated to prevent a series of adverse consequences caused by excessive blood loss caused by the patient's fear of blood coagulation in the pipeline. When the arterial tube and the venous tube fail at the same time, in order to prevent blood coagulation in the pipeline, avoid excessive blood loss, and affect the health, the tube can also be activated, so that the existing blood in the pipeline can circulate by itself to prevent coagulation, and can also reduce the risk of blood loss. Because of the sense of urgency it brings to medical staff when dealing with breakdowns.

Claims (1)

1. A single-way hemodialysis circulation device, which includes an arterial papilla rubber tube (1), an arterial tube rubber tube (2), an arterial tube drug delivery port (3), an interface regulating valve (4), and an arterial interface rubber tube (5) , rubber tube for administration port (6), first baroreceptor (7), arterial jug (8), second baroreceptor (9), I-level membrane separator (10), liquid discarding tube (11), blood cell return tube (12), venous pot baroreceptor (13), venous pot (14), venous tube hose (15), venous tube administration port (16), first regulating valve (17), venous connection rubber tube (18), venous Nipple hose (19), heating bag (20), fluid replacement tube hose (21), fluid replacement tube drip pot (22), fluid replacement tube regulating valve (23), puncture needle (24), spare nipple hose (25) , the spare tube rubber hose (26), the spare tube dripping pot (27), the second regulating valve (28), the spare tube interface (29), it is characterized in that: between the liquid replenishing tube dripping pot (22) and the puncture needle (24) There is a liquid replenishing pipe regulating valve (23) on the liquid replenishing hose (21) between them, one end of the spare hose (26) is connected to the spare nipple-type hose (25), and the other end passes through the drip pot (27) to the spare pipe interface (29); The venous connection rubber hose (18) is connected with the arterial interface rubber hose (5).

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