CN109010991B - Infusion apparatus, sampling method and flushing pipe method - Google Patents

Infusion apparatus, sampling method and flushing pipe method Download PDF

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Publication number
CN109010991B
CN109010991B CN201810996543.1A CN201810996543A CN109010991B CN 109010991 B CN109010991 B CN 109010991B CN 201810996543 A CN201810996543 A CN 201810996543A CN 109010991 B CN109010991 B CN 109010991B
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infusion
tee joint
hose
flushing
dropper
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CN109010991A (en
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刘逸文
张明
李小芳
罗艳丽
刘岩
田永明
谢筱琪
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West China Hospital of Sichuan University
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West China Hospital of Sichuan University
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/1407Infusion of two or more substances
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150015Source of blood
    • A61B5/15003Source of blood for venous or arterial blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/153Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A61B5/154Devices using pre-evacuated means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16804Flow controllers
    • A61M5/16827Flow controllers controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M2005/1401Functional features
    • A61M2005/1403Flushing or purging
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/22Improving land use; Improving water use or availability; Controlling erosion

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention discloses an infusion apparatus, a sampling method and a flushing pipe method, which relate to the technical field of medical appliances and solve the problems that the existing infusion apparatus is inconvenient for flushing pipe and can not realize pulse flushing pipe when changing medicines, and the adopted scheme is as follows: the infusion apparatus comprises an infusion puncture outfit, the infusion puncture outfit is connected with a Morgan type dropper, the Morgan type dropper is connected with an infusion hose, and a flow regulator is arranged on the infusion hose; the infusion device also comprises a flushing pipe puncture outfit, the flushing pipe puncture outfit is connected with an inlet of the first tee joint, one outlet of the first tee joint is connected into the inlet end of the Morrphy dropper, the other outlet of the first tee joint is connected with a flushing pipe hose, the flushing pipe hose and the infusion hose are both connected with the Y-shaped tee joint, and the outlet end of the Y-shaped tee joint is provided with an infusion connector; the flushing hose is also provided with a second tee joint which is connected with the pumping and injecting device. The infusion apparatus not only can wash the Morph dropper and the infusion hose, but also can conveniently and safely pulse the washing tube. The infusion joint is provided with a sampling joint, so that qualified blood samples can be conveniently taken.

Description

Infusion apparatus, sampling method and flushing pipe method
Technical Field
The invention relates to the technical field of medical equipment, in particular to an infusion apparatus, and a sampling method and a flushing pipe method realized by the infusion apparatus.
Background
Intravenous infusion is one of the usual administration means in clinic. The combination of medicines has incompatibility, and medical staff basically attach importance to the incompatibility of a plurality of medicines mixed in the same intravenous transfusion liquid, but easily neglect the incompatibility when two bottles or two bags of medicines are replaced. The "venous drug incompatibility list" is the basis for avoiding the incompatibility in clinical work, but along with the development of the pharmacy industry, new drugs are continuously emerging, the incompatibility between the new drugs and between the new drugs and the existing drugs is often not recorded, the existing "venous drug incompatibility list" is insufficient as the basis for clinical work, and the incompatibility among the drugs becomes a problem that is difficult to grasp in nursing work. Clinical researches show that the infusion of the two medicaments is performed by using normal saline or glucose injection, so that the infusion safety can be improved, and the influence of incompatibility on intravenous infusion can be reduced. The intravenous infusion tube is a simple and effective method for avoiding incompatibility.
The implementation of the intravenous infusion flushing pipe can be divided into two types, and the first is to improve the infusion soft bag to realize the flushing pipe. For example, patent publication number CN 104905963A, publication date 2015, 9 and 16 discloses a soft infusion bag and a flushing pipe method, wherein the bag body of the soft infusion bag is divided into a liquid medicine bag and a flushing liquid bag, and the flushing liquid in the flushing liquid bag is used for flushing the venous access, so that the flushing pipe can be carried out before and after infusion. The infusion soft bag and the flushing method can ensure accurate medication, do not need sharp puncture and ensure the safety of the flushing pipe, but in clinic, besides the flushing pipe avoiding incompatibility, the pulse flushing pipe is also needed to avoid the blockage of a venous access, and obviously, the infusion soft bag cannot be realized by matching with the conventional infusion apparatus.
The second is to realize the flushing pipe through the transfusion system. Generally, the operation of the flushing pipe is to break the joint of the infusion apparatus, then sterilize another bag of physiological saline or glucose solution, finally inject the physiological saline or glucose solution, and finish the flushing pipe. Because the infusion apparatus needs to be disconnected and reconnected, the nursing workload is increased, and the resources are wasted. More importantly, due to the exposure of the soft bag connector of the infusion set and the reconnection of the infusion set, there is a puncturing operation, which increases the risk of infection for the patient and the nurse.
For patients with venous transfusion, especially patients with central venous transfusion, pulse type flushing pipe should be carried out on the venous passage at regular time in order to ensure that the venous passage is unblocked and reduce the risk of pipe blockage. For central venous catheters, and particularly peripherally inserted central catheters, typically a pulse-type flush tube is typically 4 h/time, the current procedure is to expose the venous catheter adapter and sterilize it, then connect the syringe and flush it with a prefilled or other flushing device. The connector of the intravenous catheter is required to be disconnected, so that the risk of blood infection of a patient is increased, and the pulse type flushing pipe only has a flushing effect on the intravenous catheter and cannot be used for flushing residual liquid medicine of the infusion set, so that the defect that the infusion set cannot be flushed only by the flushing pipe exists functionally.
There is also a need for combination therapy in the clinic, for example, patients need to be fed with norepinephrine while being fed with fluid. The existing treatment mode is that one or more tee joints are connected at the joint of the infusion apparatus and the indwelling needle, and the medicines are infused simultaneously through the branch pipes of the tee joints. Because the tee joint is in disconnectable connection, the operation is complex, disconnection risks and exposure risks exist, and potential safety hazards exist.
Venous access is used not only for infusion, but also for drawing blood samples, such as central veins, peripherally inserted central veins, arteriovenous catheters, etc. According to clinical and industry guidelines, when collecting blood samples, the venous catheter interface needs to be disconnected, and then the blood samples are collected. The current sampling method is to disconnect the venous catheter from the infusion set, then sterilize the venous catheter twice, then withdraw a portion of the blood and pharmaceutical mixture by the syringe for disposal, and finally aspirate the blood sample through the venous catheter. Because the exposed blood needs to be disconnected and the back-pumped blood cannot be refilled into the patient, the sampling mode has the problems of exposing the blood, increasing the risk of blood infection, wasting blood samples and the like.
From the practical point of view, at present, various hospitals still use a large number of transfusion soft bags without flushing liquid bags, and the situation can be sustained, how to improve the transfusion device, realize convenient and safe flushing, and avoid compatibility reaction between medicines; meanwhile, the pulse type flushing pipe can also reduce the risk of blocking the vein access pipe, and is a serious problem facing the current clinical care.
Disclosure of Invention
The invention provides an infusion apparatus, which solves the problems that the existing infusion apparatus is inconvenient for flushing a tube when changing medicines and the existing infusion apparatus cannot realize pulse flushing.
The technical scheme adopted for solving the technical problems is as follows: the infusion apparatus comprises an infusion puncture outfit, a Morrphy's dropper and a flow regulator, wherein the infusion puncture outfit is connected with the inlet of the Morrphy's dropper through a hose, the outlet of the Morrphy's dropper is connected with an infusion hose, and the flow regulator is arranged on the infusion hose;
the infusion apparatus further comprises a wash pipe puncture outfit, the wash pipe puncture outfit is connected with an inlet of a first tee joint through a hose, the first tee joint is provided with a valve, one outlet of the first tee joint is connected into the inlet end of the Morgan type dropper, the other outlet of the first tee joint is connected with a wash pipe hose, the wash pipe hose and the infusion hose are both connected with a Y-shaped tee joint, and the outlet end of the Y-shaped tee joint is provided with an infusion joint; a second tee joint is further arranged on the flushing pipe hose between the first tee joint and the Y-shaped tee joint, a valve is arranged on the second tee joint, and a branch pipe of the second tee joint is connected with the pumping and injecting device.
The pumping and injecting device is a device capable of pumping and injecting liquid, such as a syringe. Specifically, the pumping and injecting device is an injector, the injector comprises a needle cylinder and a piston rod, one end of the piston rod is a piston, and the other end of the piston rod is a piston handle; one end of the needle cylinder is a nipple connected with the branch pipe of the second tee joint, the nipple is connected with the branch pipe of the second tee joint into a whole, the other end of the needle cylinder is a needle cylinder handle, and a sealing film is arranged between the needle cylinder handle and the piston rod; the second tee joint is connected with the two joints of the wash pipe hose into a whole.
Further is: an annular cavity is formed in the inner side of the inlet end of the Mortiered dropper, one outlet of the first tee joint is connected into the annular cavity of the Mortiered dropper, and an annular gap is formed between the annular cavity and the inner wall of the Mortiered dropper.
Further is: and at least one third tee joint is connected in series on the infusion hose between the Morph dropper and the Y-shaped tee joint, the third tee joint is connected with the infusion hose into a whole, and a branch pipe of the third tee joint is a combined medicine access port.
Specifically, a filter is further arranged on the infusion hose between the Y-shaped tee joint and the third tee joint closest to the Y-shaped tee joint.
Further is: and a sampling joint is further arranged on a pipeline between the Y-shaped tee joint and the infusion joint.
Specifically, the sampling joint comprises a base, a pipe cavity is arranged in the base, and two ends of the pipe cavity of the base are respectively connected with a pipeline into a whole; the base is provided with a connecting seat, the connecting seat is provided with a sealing cap, the inner side of the connecting seat is provided with a counter bore, a puncture needle is arranged in the counter bore and communicated with a lumen of the base, and the outer side of the puncture needle is wrapped and sealed by soft rubber.
The invention also provides a sampling method for sampling blood by the infusion apparatus with the sampling connector, which comprises the following steps:
s1, blocking an infusion hose through a flow regulator, and adjusting a valve of a second tee joint to enable the pumping and injecting device to be blocked from the first tee joint and communicated with the Y-shaped tee joint;
s2, back pumping is carried out through a pumping and injecting device;
s3, extracting a blood sample from the sampling joint;
s4, injecting the back pumped liquid through the pumping and injecting device.
The invention also provides a flushing method, which solves the problems that the operation is complicated and unsafe when the existing infusion apparatus is used for flushing after the medicine is replaced. The technical scheme adopted by the invention is as follows: the method for flushing the tube comprises the steps of carrying out flushing by any infusion apparatus, adjusting a valve of a first tee joint after one bag of liquid medicine is infused, enabling a flushing tube puncture outfit to be communicated with a Morph type dropper, blocking the flushing tube puncture outfit from a flushing tube hose, and finally flushing the Morph type dropper and the infusion hose with flushing tube liquid. The valve of the first tee joint can control the usage amount of the flushing pipe liquid.
The invention also provides a tube flushing method, which solves the problems of complicated operation and unsafe use of the existing infusion apparatus for pulse tube flushing. The technical scheme adopted by the invention is as follows: the pulse tube flushing method by any infusion apparatus comprises the following steps:
s1, blocking an infusion hose through a flow regulator, and adjusting a valve of a first tee joint to block the connection between a flushing pipe puncture outfit and a Morgan type dropper and to connect the flushing pipe puncture outfit with the flushing pipe hose;
s2, adjusting a valve of the second tee joint to enable the pumping and injecting device to be communicated with the first tee joint and enable the pumping and injecting device to be blocked from the Y-shaped tee joint;
s3, pumping flushing liquid into the pumping and injecting device through the pumping and injecting device;
s4, adjusting a valve of the second tee joint to enable the pumping and injecting device to be blocked from the first tee joint and communicated with the Y-shaped tee joint;
s5, pulse flushing is carried out through the pumping and injecting device.
The beneficial effects of the invention are as follows: the infusion apparatus not only can conveniently wash the Morph dropper and the infusion hose after changing the medicine and reduce the occurrence of medicine compatibility tabu, but also can conveniently and safely perform pulse washing and reduce the risk of tube blockage. Both flushing methods are realized by adopting a flushing liquid bag connected with a flushing puncture outfit, so that the requirement of flushing for multiple times can be met. The two flushing methods are simple to operate, the flushing process is free from exposure, and pipelines can be disconnected, so that the safety of flushing is ensured.
The infusion apparatus has simple structure, can be made into a whole, reduces the breakable parts, avoids exposure risk and improves the safety of patients; meanwhile, for nursing staff, the puncture times can be reduced, the operation is simplified, and the convenience and safety of transfusion are improved. The infusion set is also convenient for combined medication and sampling operation.
After the infusion of one bag of medicine is finished, the hose between the Murphy's dropper and the infusion puncture outfit is always emptied, the infusion set can wash the Murphy's dropper and the infusion hose, so that a section of wash liquor is formed in the middle of the infusion hose, and two bags of medicine are isolated to a great extent, thereby avoiding compatibility reaction. The annular gap is arranged at the annular cavity of the Mortierella type dropper, and the flushing pipe liquid can flush the inner wall of the Mortierella type dropper, so that the liquid medicine residue is reduced.
The sampling method comprises the steps of firstly, drawing back a part of blood through a drawing and injecting device, wherein the part of blood contains a large amount of infusion medicines and does not meet the sampling requirement; then, extracting a blood sample from the sampling port to ensure the accuracy of sampling; and finally, timely injecting the extracted blood back into the body.
Drawings
Fig. 1 is a schematic view of an embodiment of an infusion set of the present invention.
Fig. 2 is an enlarged view of the sampling joint of fig. 1.
Fig. 3 is an enlarged view of the mof dropper of fig. 1.
Parts, parts and numbers in the figures: infusion puncture outfit 1, morph dropper 2, annular cavity 21, gap 22, flow regulator 3, infusion hose 4, wash pipe puncture outfit 5, first tee 6, wash pipe hose 7, pumping and injecting device 8, sampling joint 9, base 91, connecting seat 92, sealing cap 93, counter bore 94, puncture needle 95, soft rubber 96, Y-shaped tee 10, infusion joint 11, second tee 12, third tee 13, joint medicine inlet 131 and filter 14.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1 to 3, the infusion apparatus of the invention comprises an infusion puncture outfit 1, a Mortierella dropper 2 and a flow regulator 3, wherein the infusion puncture outfit 1 is connected with the inlet of the Mortierella dropper 2 through a hose, a sheath is sleeved outside the infusion puncture outfit 1, the outlet of the Mortierella dropper 2 is connected with an infusion hose 4, and the flow regulator 3 is arranged on the infusion hose 4 in a penetrating way. The infusion puncture outfit 1 can be connected with an air inlet pipe, so that the infusion puncture outfit 1 is not only suitable for soft infusion bags, but also suitable for hard infusion bottles.
The infusion apparatus further comprises a wash pipe puncture outfit 5, the structure of the wash pipe puncture outfit 5 is the same as that of the infusion hose 4, and the wash pipe puncture outfit 5 can be connected with an air inlet pipe so as to be suitable for a hard infusion bottle. The flushing pipe puncture outfit 5 is connected with an inlet of the first tee joint 6 through a hose, the first tee joint 6 is provided with a valve, the first tee joint 6 comprises an inlet and two outlets, and one outlet of the first tee joint 6 is connected into an inlet end of the Mortierella type dropper 2 and is used for flushing the Mortierella type dropper 2 and the infusion hose 4. The other outlet of the first tee 6 is connected with a flushing pipe hose 7, and the flushing pipe hose 7 is used for pulse flushing. The flushing hose 7 and the transfusion hose 4 are connected with a Y-shaped tee 10, and the outlet end of the Y-shaped tee 10 is provided with a transfusion joint 11. The infusion set 11 is adapted for direct connection to an intravenous catheter set, e.g. the infusion set 11 is a universal luer set. A second tee joint 12 is arranged on the flushing hose 7 between the first tee joint 6 and the Y-shaped tee joint 10, the second tee joint 12 is provided with a valve, and a branch pipe of the second tee joint 12 is connected with the pumping and injecting device 8.
The suction and injection device 8 is a device that can aspirate and inject a liquid, such as a syringe or other device that can achieve suction and injection. Specifically, the infusion set 8 is a syringe disclosed in patent publication number CN 204655607U. As shown in fig. 1, the priming device 8 is a syringe. The injector comprises a needle cylinder and a piston rod, wherein one end of the piston rod is a piston, and the other end of the piston rod is a piston handle; one end of the needle cylinder is provided with a nipple which is used for being connected with a branch pipe of the second tee joint 12, and the nipple is connected with the branch pipe of the second tee joint 12 into a whole, namely, the connection is unbreakable; the other end of the needle cylinder is provided with a needle cylinder handle, and a sealing film is arranged between the needle cylinder handle and the piston rod; the second tee 12 is connected with the two joints of the flushing hose 7 into a whole, namely, the connection can not be disconnected. The three joints of the second tee joint 12 are connected with the pumping and injecting device 8 and the flushing pipe hose 7 into a whole, namely, the connection cannot be disconnected, the connection strength and the tightness are ensured, and the use safety is ensured. And a sealing film is arranged between the needle cylinder handle and the piston rod, so that the whole needle cylinder and the piston rod are kept airtight, and the safety is further enhanced.
The infusion hose 4 and the flushing hose 7 may be two independent pipelines side by side, two pipelines side by side and adhered together, or a single-pipe double-cavity pipeline, wherein the flow regulator 3 is only arranged on the outer side of the infusion hose 4.
After the medicine infusion is finished, the hose between the infusion puncture outfit 1 and the Murphy's dropper 2 is always emptied, so the focus of the flushing pipe for avoiding the incompatibility is on flushing the Murphy's dropper 2 and the pipeline at the rear section thereof. In order to wash the inner wall of the Mortierella dropper 2 and reduce the residual amount, as shown in FIG. 3, an annular cavity 21 is disposed at the inner side of the inlet end of the Mortierella dropper 2, a pipeline extending into the Mortierella dropper 2 is disposed at the center of the annular cavity 21, and a dosing pipe may or may not be disposed at the outer side of the inlet end of the Mortierella dropper 2. One outlet of the first tee 6 is connected into an annular cavity 21 of the Mortiered dropper 2, an annular gap 22 is arranged between the annular cavity 21 and the inner wall of the Mortiered dropper 2, namely, the gap 22 is arranged along the edge of the inner wall of the Mortiered dropper 2, so that flushing liquid can conveniently flow down from the inner wall of the Mortiered dropper 2 to flush the inner wall of the Mortiered dropper 2.
To meet the requirement of combined medication in transfusion. At least one third tee 13 is connected in series on the infusion hose 4 between the Morph dropper 2 and the Y-shaped tee 10, namely two branch pipes of the third tee 13 are respectively connected with the infusion hose 4, and the other branch pipe of the third tee 13 is a combined medicine access port 131. In order to avoid the problems that the tee joint is easy to fall off and the joint is exposed due to the fact that the tee joint is directly connected to the infusion hose 4 in a conventional mode, two branch pipes of the third tee joint 13 are connected with the infusion hose 4 into a whole, namely two ends of the third tee joint 13 are integrated with the infusion hose 4 into a whole and cannot be disconnected. The third tee 13 may be arranged according to the requirements of use, such as 2, 3, 4 or 5. Three third tees 13 are preferably provided in view of cost and practical requirements. The third tee 13 can be a tee without a valve or a tee with a valve.
A filter 14 is also arranged on the infusion hose 4 between the Y-shaped tee 10 and the third tee 13 nearest to the Y-shaped tee 10, and the filter 14 is used for filtering infused liquid medicine and wash pipe liquid. The flushing pipe puncture outfit 5 is directly connected with a flushing liquid bag or a flushing liquid bottle, and the flushing liquid bag and the flushing liquid bottle are not added with liquid medicine and have no impurities such as glass slag, so a filter can not be arranged on the flushing pipe hose 7.
In order to facilitate blood sample collection, a sampling connector 9 is also arranged on the pipeline between the Y-shaped tee 10 and the infusion connector 11. The sampling connector 9 may be connected to the pipeline in a disconnected manner or integrally connected with the pipeline, and the sampling connector 9 may be a heparin cap. More preferred mode is that, as shown in fig. 2, the sampling connector 9 comprises a base 91, a lumen is arranged in the base 91, two ends of the lumen are respectively connected with a pipeline into a whole, namely, the base 91 is a T-shaped tee, two branch pipes of the T-shaped tee are connected with the pipeline into a whole, and the other branch pipe of the T-shaped tee is a sampling branch pipe. The base 91 is provided with a connecting seat 92, the inner side of the connecting seat 92 is provided with a counter bore 94, the connecting seat 92 is provided with a sealing cap 93, the sealing cap 93 is in threaded connection with the connecting seat 92, and the sealing cap 93 can seal the whole counter bore. A puncture needle 95 is arranged in a counter bore 94 of the connecting seat 92, the needle tip of the puncture needle 95 is provided with a needle hole and is communicated with the lumen of the base 91, namely, the puncture needle 95 is communicated with a sampling branch pipe of the T-shaped tee joint, and the outer side of the puncture needle 95 is wrapped and sealed by soft rubber 96. The height of the soft rubber 96 in the counter bore 94 is not greater than the depth of the counter bore 94, so that safety is ensured.
Under normal conditions, the puncture needle 95 is covered and sealed by the soft rubber 96, and the sealing cap 93 has the functions of isolation protection and secondary sealing. During sampling, the sealing cap 93 is taken down, the vacuum blood collection tube is inserted into the counter bore 94 of the connecting seat 92, the vacuum blood collection tube extrudes the soft rubber 96, and the puncture needle 95 punctures the soft plug of the vacuum blood collection tube, so that sampling is realized. After the sampling is finished, the vacuum blood sampling tube is taken out, the puncture needle 95 is wrapped again by the soft rubber 96, and the puncture needle 95 is sealed, so that the automatic sealing of the sampling joint 9 is realized. The puncture needle 95 is only used for puncturing a soft plug of the vacuum blood collection tube, and the puncture needle 95 can be made of metal or hard plastic.
Since a large amount of liquid medicine exists in the pipeline from the sampling joint 9 to the infusion joint 11 to the indwelling needle, a blood sample meeting the requirements cannot be directly taken from the sampling joint 9. The sampling method of the invention, which is used for sampling blood by the infusion apparatus with the sampling joint 9, comprises the following steps:
s1, blocking the infusion hose 4 through the flow regulator 3, and adjusting a valve of the second tee joint 12 to enable the suction and injection device 8 to be blocked with the first tee joint 6 and enable the suction and injection device 8 to be communicated with the Y-shaped tee joint 10.
S2, back pumping is carried out through the pumping and injecting device 8. The mixed liquid of the liquid medicine, the flushing pipe liquid and the blood is pumped back, so that the blood at the sampling joint 9 is the blood meeting the sampling standard.
S3, extracting a blood sample from the sampling joint 9.
S4, injecting the back pumped liquid through the pumping and injecting device 8. After the sampling is completed, the liquid medicine, the wash pipe liquid and part of blood pumped back in the step S2 are injected into the human body through the pumping and injecting device 8.
According to the above sampling method, the sampling connector 9 of the infusion apparatus should be disposed as close to the infusion connector 11 as possible, so as to reduce the back pumping amount of the pumping and injecting device 8.
The flushing pipe method is used for flushing after the medicine is replaced. According to the flushing method, flushing is carried out through the infusion apparatus, the flushing puncture outfit 5 is connected with a flushing liquid bag or a flushing liquid bottle, after one bag of liquid medicine infusion is completed, the valve of the first tee joint 6 is adjusted, the flushing puncture outfit 5 is communicated with the Morfei dropper 2, the flushing puncture outfit 5 is blocked with the flushing hose 7, and finally flushing is carried out on the Morfei dropper 2 and the infusion hose 4 through flushing liquid. The valve of the first tee joint 6 can control the usage amount of the flushing pipe liquid.
The pipe flushing method is used for pulse pipe flushing. The pulse tube flushing method by the infusion apparatus comprises the following steps:
s1, blocking the infusion hose 4 through the flow regulator 3 or blocking the infusion hose 4 through a valve of the third tee 13; the valve of the first tee joint 6 is adjusted to block the flushing pipe puncture outfit 5 from the Morgan type dropper 2, and the flushing pipe puncture outfit 5 is communicated with the flushing pipe hose 7.
S2, adjusting a valve of the second tee joint 12 to enable the pumping and injecting device 8 to be communicated with the first tee joint 6, and enabling the pumping and injecting device 8 to be blocked from the Y-shaped tee joint 10.
S3, pumping flushing liquid into the pumping and injecting device 8 through the pumping and injecting device 8. For example, 20ml of rinse solution is pumped into the pump 8.
S4, adjusting a valve of the second tee joint 12 to enable the pumping and injecting device 8 to be blocked from the first tee joint 6, and enabling the pumping and injecting device 8 to be communicated with the Y-shaped tee joint 10.
S5, pulse flushing is carried out through the pumping and injecting device 8.
The two flushing methods and the sampling method are integrated on the infusion apparatus, so that the complicated and unsafe problems of the existing flushing and sampling modes are avoided, and the infusion apparatus is simple in structure, low in manufacturing cost and convenient to use.

Claims (7)

1. The infusion apparatus comprises an infusion puncture outfit (1), a Morrphy dropper (2) and a flow regulator (3), wherein the infusion puncture outfit (1) is connected with the inlet of the Morrphy dropper (2) through a hose, the outlet of the Morrphy dropper (2) is connected with an infusion hose (4), and the flow regulator (3) is arranged on the infusion hose (4); the method is characterized in that:
the infusion apparatus further comprises a wash pipe puncture outfit (5), the wash pipe puncture outfit (5) is connected with an inlet of a first tee joint (6) through a hose, the first tee joint (6) is provided with a valve, one outlet of the first tee joint (6) is connected into an inlet end of the Morfei dropper (2), the other outlet of the first tee joint (6) is connected with a wash pipe hose (7), the wash pipe hose (7) and the infusion hose (4) are both connected with a Y-shaped tee joint (10), and an outlet end of the Y-shaped tee joint (10) is provided with an infusion connector (11); a second tee joint (12) is further arranged on the flushing pipe hose (7) between the first tee joint (6) and the Y-shaped tee joint (10), the second tee joint (12) is provided with a valve, and a branch pipe of the second tee joint (12) is connected with the pumping and injecting device (8);
the pumping and injecting device (8) is an injector, the injector comprises a needle cylinder and a piston rod, one end of the piston rod is a piston, and the other end of the piston rod is a piston handle; one end of the needle cylinder is a nipple connected with a branch pipe of the second tee joint (12), the nipple is connected with the branch pipe of the second tee joint (12) into a whole, the other end of the needle cylinder is a needle cylinder handle, and a sealing film is arranged between the needle cylinder handle and the piston rod; the second tee joint (12) is connected with two joints of the flushing hose (7) into a whole;
an annular cavity (21) is formed in the inner side of the inlet end of the Mortiered dropper (2), one outlet of the first tee joint (6) is connected into the annular cavity (21) of the Mortiered dropper (2), and an annular gap (22) is formed between the annular cavity (21) and the inner wall of the Mortiered dropper (2).
2. The infusion set of claim 1, wherein: at least one third tee joint (13) is connected in series on the infusion hose (4) between the Morgan type dropper (2) and the Y-shaped tee joint (10), the third tee joint (13) and the infusion hose (4) are connected into a whole, and a branch pipe of the third tee joint (13) is a combined medicine access port (131).
3. The infusion set of claim 2, wherein: a filter (14) is further arranged on the infusion hose (4) between the Y-shaped tee (10) and a third tee (13) closest to the Y-shaped tee (10).
4. The infusion set of claim 2, wherein: and a sampling joint (9) is further arranged on a pipeline between the Y-shaped tee joint (10) and the infusion joint (11).
5. The infusion set of claim 4, wherein: the sampling connector (9) comprises a base (91), a pipe cavity is arranged in the base (91), and two ends of the pipe cavity of the base (91) are respectively connected with a pipeline into a whole; the base (91) is provided with a connecting seat (92), the connecting seat (92) is provided with a sealing cap (93), the inner side of the connecting seat (92) is provided with a counter bore (94), a puncture needle (95) is arranged in the counter bore (94), the puncture needle (95) is communicated with a lumen of the base (91), and the outer side of the puncture needle (95) is wrapped and sealed by soft rubber (96).
6. The flushing pipe method is characterized in that: after one bag of liquid medicine is infused through the infusion apparatus of any one of the claims 1 to 5, the valve of the first tee joint (6) is adjusted to enable the infusion apparatus (5) to be communicated with the Morgan type dropper (2), the infusion apparatus (5) is blocked with the infusion hose (7), and finally the Morgan type dropper (2) and the infusion hose (4) are infused by the infusion liquid.
7. The flushing pipe method is characterized in that: pulse tube administration by means of an infusion set according to any of the preceding claims 1 to 5, comprising the steps of:
s1, blocking an infusion hose (4) through a flow regulator (3), and adjusting a valve of a first tee joint (6) to enable a flushing pipe puncture outfit (5) to be blocked with a Morgan type dropper (2) and a flushing pipe puncture outfit (5) to be communicated with a flushing pipe hose (7);
s2, adjusting a valve of the second tee joint (12) to enable the pumping and injecting device (8) to be communicated with the first tee joint (6) and enable the pumping and injecting device (8) to be blocked from the Y-shaped tee joint (10);
s3, pumping flushing liquid into the pumping and injecting device (8) through the pumping and injecting device (8);
s4, adjusting a valve of the second tee joint (12) to enable the pumping and injecting device (8) to be blocked from the first tee joint (6) and enable the pumping and injecting device (8) to be communicated with the Y-shaped tee joint (10);
s5, pulse flushing is carried out through the pumping and injecting device (8).
CN201810996543.1A 2018-08-29 2018-08-29 Infusion apparatus, sampling method and flushing pipe method Active CN109010991B (en)

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