CN110841136A - Multifunctional safety component for non-gravity infusion apparatus - Google Patents
Multifunctional safety component for non-gravity infusion apparatus Download PDFInfo
- Publication number
- CN110841136A CN110841136A CN201911038257.5A CN201911038257A CN110841136A CN 110841136 A CN110841136 A CN 110841136A CN 201911038257 A CN201911038257 A CN 201911038257A CN 110841136 A CN110841136 A CN 110841136A
- Authority
- CN
- China
- Prior art keywords
- cavity
- pressure
- liquid outlet
- multifunctional safety
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 99
- 230000005484 gravity Effects 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 109
- 230000007246 mechanism Effects 0.000 claims abstract description 75
- 239000012528 membrane Substances 0.000 claims abstract description 45
- 238000001914 filtration Methods 0.000 claims abstract description 22
- 230000007704 transition Effects 0.000 claims description 26
- 239000010408 film Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000004743 Polypropylene Substances 0.000 claims description 6
- -1 Polytetrafluoroethylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 238000001471 micro-filtration Methods 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920012266 Poly(ether sulfone) PES Polymers 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- 210000004492 nuclear pore Anatomy 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 239000003814 drug Substances 0.000 abstract description 19
- 239000002245 particle Substances 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1657—Filter with membrane, e.g. membrane, flat sheet type infusion filter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to a multifunctional safety component for a non-gravity infusion apparatus, which comprises a shell, wherein a liquid inlet and a liquid outlet are respectively arranged on two sides of the shell, a precise filtering membrane is arranged in the shell and divides an inner cavity of the shell into a liquid inlet cavity and a liquid outlet cavity, the liquid inlet cavity is communicated with the liquid inlet, the liquid outlet cavity is communicated with the liquid outlet, the precise filtering membrane can filter out liquid medicine and particles with the particle size of more than 0.5-5 um in a pipeline, a one-way pressure opening mechanism mounting cavity is arranged between the liquid outlet cavity and the liquid outlet, and a one-way pressure opening mechanism is mounted in the one-way pressure opening mechanism mounting. The opening pressure of the mechanism can prevent the liquid in the soft bag from flowing to a patient unexpectedly under the action of gravity when the pump does not work or the infusion set is taken out of the pump.
Description
Technical Field
The invention relates to the technical field of infusion, in particular to a multifunctional safety component for a non-gravity infusion apparatus.
Background
Infusion is an important clinical administration mode, and a liquid medicine container, an administration passage (an infusion apparatus) and a puncture part are improved in the period from the birth of an infusion method to the present 100 years, and power infusion equipment (such as an infusion pump) is also born, and infusion is safer and safer. However, the infusion apparatus itself stays in the gravity infusion stage, and the main sign of the gravity infusion apparatus is that the infusion pipeline is provided with a component such as a drip cup, and the gravity infusion apparatus has the functions of providing rough metering and visual feedback for medical staff to check whether the infusion is normal or not. Even in the case of using an infusion pump, the drip cup plays a safety role in monitoring whether or not free flow occurs. Also because of the existence of the drip cup, the visual monitoring is brought, and simultaneously, a plurality of defects are brought:
1. due to the existence of the drip cup, the transfusion container (transfusion bottle and transfusion bag) must be hung up, which occupies much space and is inconvenient to move. Under the condition of infusion by using an infusion pump, because the existing infusion apparatus system is continued, an infusion bag or a bottle still needs to be hung, and the mobility is limited;
2. because the transfusion system needs to be lifted and gravity transfusion is considered, the transfusion pipeline is relatively long and thick, more disposable garbage is generated, and greater environmental protection pressure is brought to the society;
3. when the infusion pump is used for infusion, no one can judge whether the infusion is normal or not through monitoring the drip cup, and at the moment, unexpected leakage of a pipeline, mechanical fatigue pump pressure reduction, use of an unfinished infusion set, excessive hardness of the infusion set caused by low ambient temperature and the like can cause infusion pressure loss, cause self-flow and damage patients. To address this problem, a drop count sensor may be an option, but its easily false alarm nature limits the application of this safety measure;
4. when the infusion apparatus is removed from the infusion pump, the flow regulator must be manually closed in advance, and the infusion can flow automatically due to human error.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a multifunctional safety component for a non-gravity infusion apparatus.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a many functional safety part for non-gravity transfusion system, includes the casing, and the both sides of casing have inlet and liquid outlet respectively, be equipped with microfiltration membrane in the casing, microfiltration membrane separates the inner chamber of casing for feed liquor chamber and play liquid chamber, feed liquor chamber with the inlet intercommunication, go out the liquid chamber with the liquid outlet intercommunication, microfiltration membrane can filter the liquid medicine and the pipeline in the granule more than 0.5um-5um, go out and be equipped with one-way pressure opening mechanism installation cavity between liquid chamber and the liquid outlet, one-way pressure opening mechanism installation intracavity one-way pressure opening mechanism.
Furthermore, the one-way pressure opening mechanism comprises a mounting seat fixed in the one-way pressure opening mechanism mounting cavity and an elastic pressure film arranged at the top of the mounting seat, the top of the one-way pressure opening mechanism mounting cavity is provided with a transition port, the elastic pressure film corresponds to the transition port and is in contact with shoulder nails on two sides of the transition port, and the liquid outlet cavity is communicated with the one-way pressure opening mechanism mounting cavity through the transition port. The one-way pressure opening mechanism mounting cavity is communicated with the liquid outlet.
Furthermore, the one-way pressure opening mechanism comprises a spring fixed in the one-way pressure opening mechanism mounting cavity and a movable plunger arranged at the top of the spring, the top of the one-way pressure opening mechanism mounting cavity is provided with a transition port, the movable plunger corresponds to the transition port and is in contact with shoulder nails on two sides of the transition port, and the liquid outlet cavity is communicated with the one-way pressure opening mechanism mounting cavity through the transition port. The one-way pressure opening mechanism mounting cavity is communicated with the liquid outlet.
Furthermore, a ventilating and filtering mechanism is arranged on the shell.
Furthermore, the air-permeable filtering mechanism comprises an air vent communicated with the liquid inlet cavity, and an air-permeable membrane is arranged at the air vent.
Furthermore, a precise pressure transmission mechanism is arranged on the shell.
Furthermore, the precision pressure conduction mechanism comprises a pressure conduction port communicated with the liquid inlet cavity or the liquid outlet cavity, a precision pressure conduction membrane is arranged at the pressure conduction port, and the precision pressure conduction membrane is in contact with a force sensor on the infusion pump.
Furthermore, the precise pressure transmission mechanism is a precise pressure sensor arranged on the inner wall of the liquid inlet cavity or the liquid outlet cavity, and the signal of the precise pressure sensor is connected with the circuit of the infusion pump through a cable or a conductive node arranged on the surface of the multifunctional safety part to transmit the pressure signal to the infusion pump. The precision pressure sensor may be the 1630 disposable pressure sensor of MEAS.
Further, the liquid inlet is connected with an infusion pump pipe of an infusion pump, and the liquid outlet corresponds to a patient through an infusion pipeline.
Further, the precise filter membrane is made of a nuclear pore membrane, polyether sulfone (PES) or nylon and other medical grade microporous hydrophilic filter membrane materials; the elastic pressure membrane is made of 0.2-2mm medical silicon rubber or other medical grade elastic materials; the material of the breathable film is hydrophobic filter membrane material such as Polytetrafluoroethylene (PTFE), polypropylene (PP) and the like; the precise pressure conduction membrane is made of medical grade thin film materials such as PVC, PE, silica gel and the like with the thickness of 0.1-0.3 mm.
The invention has the beneficial effects that: 1. compared with the traditional gravity infusion apparatus, the infusion apparatus of the invention cancels a drip cup, uses an infusion soft bag which is becoming a development trend as a liquid medicine container, the soft bag does not need to be hung, and the soft bag can be placed nearby the periphery of the pump, thereby being convenient to move;
2. the multifunctional safety component used by the invention is provided with the one-way pressure opening mechanism, and the opening pressure of the mechanism can prevent the liquid medicine in the soft bag from flowing to a patient unexpectedly under the action of gravity when the pump does not work or the infusion set is taken out of the pump. While the cracking pressure establishes a pressure threshold Pk (greater than that provided by conventional gravity infusion, typically between 10Kpa and 50 Kpa). Under the condition that the pump works, only when the pressure Pw generated in the pipeline behind the pump is greater than the opening pressure threshold Pk, the liquid medicine flows to a patient through the one-way valve, and the pressure threshold can be measured through a force (pressure) sensor arranged on the pump or arranged in the pipeline, so that the transfusion risk caused by the out-of-control pump pressure generated by the factors of improper matching of the pump and the pipeline, self abrasion of the pump, influence of temperature factors on the hardness and elasticity of the pipeline, unqualified mechanical size of the pipeline and the like is avoided;
3. the multifunctional safety part is provided with a precise pressure transmission mechanism or a built-in precise pressure sensor (such as a 1630 disposable pressure sensor of MEAS), and the precise pressure transmission mechanism can accurately transmit the pressure in the infusion tube after the pump to the force sensor on the infusion pump so as to obtain the pressure value in the tube, or directly transmit the signal to the infusion pump through the precise pressure sensor built in the tube. The infusion pump judges whether the pump pressure is out of control according to the pressure value in the pipeline actually measured in work.
4. The infusion pump adopted by the invention is provided with a force sensor (such as a touch force sensor of Honiville) for measuring the pressure in the tube through a precision pressure conduction mechanism in a multifunctional safety part of the infusion apparatus or acquiring the pressure value in the tube from the pressure sensor arranged in the infusion apparatus, and analysis software is arranged for identifying and judging whether the risk of pump pressure out of control occurs or not;
5. the shell of the multifunctional safety component is provided with a breathable filtering mechanism, the breathable filtering mechanism comprises a breathable hole communicated with the liquid inlet cavity, a breathable film is arranged at the breathable hole, and the breathable film can filter air in a pipeline in infusion and discharge the air to the outside of an infusion apparatus, so that the breathable film can play a role in filtering gas while exhausting gas quickly;
6. the precise filtering membrane is arranged in the shell, the precise filtering membrane divides the inner cavity of the shell into a liquid inlet cavity and a liquid outlet cavity, the liquid inlet cavity is communicated with the liquid inlet, the liquid outlet cavity is communicated with the liquid outlet, and the precise filtering membrane can filter liquid medicine and particles more than 0.5-5 um in the pipeline, so that the liquid medicine entering the liquid outlet cavity from the liquid inlet cavity is clean.
Drawings
Fig. 1 is a schematic front view of a multifunctional safety member in embodiment 1 of the present invention;
FIG. 2 is a schematic reverse view of the multi-functional safety member in embodiment 1 of the present invention;
fig. 3 is a schematic sectional view of the multifunctional safety member in embodiment 1 of the present invention;
fig. 4 is a schematic sectional view showing an operating state of the multifunctional safety member in embodiment 1 of the present invention;
fig. 5 is a schematic diagram of the combination of an infusion apparatus and an infusion pump, which are composed of the multifunctional safety component in embodiment 1 of the present invention;
fig. 6 is a schematic front view of the multifunctional safety member in embodiment 2 of the present invention;
FIG. 7 is a schematic reverse view of the multi-functional safety member in embodiment 2 of the present invention;
fig. 8 is a schematic sectional view of the multi-functional safety member according to embodiment 2 of the present invention;
fig. 9 is a schematic sectional view showing an operating state of the multifunctional safety member in embodiment 2 of the present invention;
fig. 10 is a schematic diagram of the combination of an infusion apparatus and an infusion pump, which are composed of the multifunctional safety component in embodiment 2 of the present invention;
fig. 11 is a schematic view of the working principle of the infusion system according to the invention.
Detailed Description
The patent is further described with reference to the following specific examples and figures:
example 1
As shown in fig. 1 to 5, fig. 11 shows, a multifunctional safety component for a non-gravity infusion apparatus, multifunctional safety component 100 includes a housing 1, both sides of housing 1 have a liquid inlet 2 and a liquid outlet 3 respectively, a precise filtration membrane 4 is arranged in housing 1, precise filtration membrane 4 separates the inner cavity of housing 1 into a liquid inlet cavity 5 and a liquid outlet cavity 6, liquid inlet cavity 5 is communicated with liquid inlet 2, liquid outlet cavity 6 is communicated with liquid outlet 3, liquid inlet 2 is connected with an infusion pump pipe of an infusion pump, liquid outlet 3 corresponds to a patient through an infusion pipeline, precise filtration membrane 4 can filter out liquid medicine and particles more than 0.5um-5um in the pipeline, a one-way pressure opening mechanism mounting cavity 7 is arranged between liquid outlet cavity 6 and liquid outlet 3, and a one-way pressure opening mechanism is mounted in one-way pressure opening mechanism mounting cavity 7.
The one-way pressure opening mechanism comprises an installation seat 8 fixed in an installation cavity 7 of the one-way pressure opening mechanism and an elastic pressure film 9 arranged at the top of the installation seat 8, a transition port 10 is formed in the top of the installation cavity of the one-way pressure opening mechanism, the elastic pressure film 9 corresponds to the transition port 10 and is in contact with shoulder nails 11 on two sides of the transition port 10, and the liquid outlet cavity 6 is communicated with the installation cavity 7 of the one-way pressure opening mechanism through the transition port 10. The one-way pressure opening mechanism mounting cavity 7 is communicated with the liquid outlet 3.
Furthermore, a precise pressure conduction mechanism is arranged on the shell 1, the precise pressure conduction mechanism comprises a pressure conduction port 12 communicated with the liquid inlet cavity 5 or the liquid outlet cavity 6, a precise pressure conduction membrane 13 is arranged at the pressure conduction port 12, and the precise pressure conduction membrane 13 is contacted with a force sensor on the infusion pump. In the drawings of the present application, the precise pressure conduction mechanism is disposed outside the liquid inlet chamber 5, but the technical solution of disposing the precise pressure conduction mechanism outside the liquid outlet chamber 6 also belongs to the protection scope of the present application.
Further, a ventilation filtering mechanism is arranged on the shell 1 and comprises a ventilation hole 14 communicated with the liquid inlet cavity 5, and a ventilation film 15 is arranged at the ventilation hole 14.
Wherein, the precise filter membrane 4 is made of medical grade microporous hydrophilic filter membrane materials such as a nuclear pore membrane, polyether sulfone (PES) or nylon and the like; the elastic pressure membrane 9 is made of 0.2-2mm medical silicon rubber or other medical grade elastic materials; the breathable film 15 is made of hydrophobic filter membrane materials such as Polytetrafluoroethylene (PTFE), polypropylene (PP) and the like; the precise pressure conduction membrane 13 is made of medical grade thin film materials such as PVC, PE, silica gel and the like with the thickness of 0.1-0.3 mm.
The principle and the steps of the system corresponding to the multifunctional safety component are as follows:
a. placing the dispensed infusion soft bag 18 around the infusion pump 16 (such as in a containing box on the side of the pump, above the pump or on the side of the pump, etc.);
b. inserting an insertion needle of an infusion apparatus 17 into a liquid outlet of a liquid medicine container, allowing liquid medicine to flow from the liquid medicine container to the multifunctional safety part 100 through the insertion needle, an upper infusion pipeline and an infusion pump pipe under the action of gravity, and exhausting air in the pipe through an air permeable film 15 and an air vent 14 of the multifunctional safety part 100 until a cavity where the air permeable film 15 and the air vent 14 are located is filled with the liquid medicine;
c. clamping the infusion set 17 on the infusion pump 16, clamping the multifunctional safety component 100 at a corresponding clamping position on the infusion pump 16, and enabling a precision pressure transmission mechanism of the multifunctional safety component 100 to be in close contact with a force sensor on the pump (the pressure in a pipeline can be measured through a contact surface, wherein P is F/S);
d. the fast-forward function of the pump is utilized to fill the pipeline behind the multifunctional safety component 100 with the liquid medicine, meanwhile, the internal pressure of the pipeline behind the multifunctional safety component 100 can be seen through the interface of the pump to be larger than or equal to the opening pressure threshold Pk (larger than the pressure provided by the conventional gravity transfusion and generally between 10Kpa and 50 Kpa) of the elastic pressure membrane 9 of the one-way pressure opening mechanism, and meanwhile, the software of the pump judges the pressure, so that the risk of insufficient pressure of the pump is found in advance;
e. pressing a start key to start transfusion, and simultaneously, automatically monitoring the pressure in the pipeline behind the multifunctional safety part 100 by a pump, and giving an alarm in time when pressure loss is found;
f. after the infusion, the infusion apparatus 17 is taken out from the pump, the elastic pressure membrane 9 of the one-way pressure opening mechanism is reset, the transition port 10 is automatically sealed, and the gravity flow is avoided.
Example 2
As shown in fig. 6 to 10, the present embodiment is different from embodiment 1 in that the one-way pressure opening mechanism may preferably have another structure, the structure includes a spring 19 fixed in the one-way pressure opening mechanism mounting cavity 7 and a movable plunger 20 disposed on the top of the spring 19, the top of the one-way pressure opening mechanism mounting cavity is provided with a transition port 10, the movable plunger 20 corresponds to the transition port 10 and contacts with shoulder nails 11 on both sides of the transition port 10, and the liquid outlet cavity 6 is communicated with the one-way pressure opening mechanism mounting cavity 7 through the transition port 10. The one-way pressure opening mechanism mounting cavity 7 is communicated with the liquid outlet 3.
In the embodiment, the contact and separation of the movable plunger 20 and the transition port 10 are mainly controlled by the extension and contraction of the spring 19, so that the function of automatically closing the pipeline is achieved, and the self-flow is avoided.
Example 3
As shown in fig. 8, fig. 9, and fig. 10, the present embodiment is different from embodiment 1 in that the precise pressure transmission mechanism is a precise pressure sensor 21 disposed on the inner wall of the inlet chamber 5 or the outlet chamber 6, the precise pressure sensor 21 may be a 1630 disposable pressure sensor of MEAS, and the signal of the precise pressure sensor 21 is connected to the circuit of the infusion pump 16 through a cable 22 or a conductive node disposed on the surface of the multifunctional safety component to transmit the pressure signal to the infusion pump 16. The precision pressure sensor may be the 1630 disposable pressure sensor of MEAS. Compared with the precise pressure conduction membrane 13 in the embodiment 1, the precise pressure sensor has more direct pressure transmission, and the infusion pump judges whether the pump pressure is out of control according to the in-line pressure value actually measured in work.
The invention has the advantages that: 1. compared with the traditional gravity infusion apparatus, the infusion apparatus of the invention cancels a drip cup, uses an infusion soft bag which is becoming a development trend as a liquid medicine container, the soft bag does not need to be hung, and the soft bag can be placed nearby the periphery of the pump, thereby being convenient to move;
2. the multifunctional safety component used by the invention is provided with the one-way pressure opening mechanism, and the opening pressure of the mechanism can prevent the liquid medicine in the soft bag from flowing to a patient unexpectedly under the action of gravity when the pump does not work or the infusion set is taken out of the pump. While the cracking pressure establishes a pressure threshold Pk (greater than that provided by conventional gravity infusion, typically between 10Kpa and 50 Kpa). Under the condition that the pump works, only when the pressure Pw generated in the pipeline behind the pump is greater than the opening pressure threshold Pk, the liquid medicine flows to a patient through the one-way valve, and the pressure threshold can be measured through a force (pressure) sensor arranged on the pump or arranged in the pipeline, so that the transfusion risk caused by the out-of-control pump pressure generated by the factors of improper matching of the pump and the pipeline, self abrasion of the pump, influence of temperature factors on the hardness and elasticity of the pipeline, unqualified mechanical size of the pipeline and the like is avoided;
3. the multifunctional safety part is provided with a precise pressure transmission mechanism or a built-in precise pressure sensor (such as a 1630 disposable pressure sensor of MEAS), and the precise pressure transmission mechanism can accurately transmit the pressure in the infusion tube after the pump to the force sensor on the infusion pump so as to obtain the pressure value in the tube, or directly transmit the signal to the infusion pump through the precise pressure sensor built in the tube. The infusion pump judges whether the pump pressure is out of control according to the pressure value in the pipeline actually measured in work.
4. The infusion pump adopted by the invention is provided with a force sensor (such as a touch force sensor of Honiville) for measuring the pressure in the tube through a precision pressure conduction mechanism in a multifunctional safety part of the infusion apparatus or acquiring the pressure value in the tube from the pressure sensor arranged in the infusion apparatus, and analysis software is arranged for identifying and judging whether the risk of pump pressure out of control occurs or not;
5. the shell of the multifunctional safety component is provided with a breathable filtering mechanism, the breathable filtering mechanism comprises a breathable hole communicated with the liquid inlet cavity, a breathable film is arranged at the breathable hole, and the breathable film can filter air in a pipeline in infusion and discharge the air to the outside of an infusion apparatus, so that the breathable film can play a role in filtering gas while exhausting gas quickly;
6. the precise filtering membrane is arranged in the shell, the precise filtering membrane divides the inner cavity of the shell into a liquid inlet cavity and a liquid outlet cavity, the liquid inlet cavity is communicated with the liquid inlet, the liquid outlet cavity is communicated with the liquid outlet, and the precise filtering membrane can filter liquid medicine and particles more than 0.5-5 um in the pipeline, so that the liquid medicine entering the liquid outlet cavity from the liquid inlet cavity is clean.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A multifunctional safety component for a non-gravity infusion apparatus comprises a shell, wherein a liquid inlet and a liquid outlet are respectively arranged on two sides of the shell, and the multifunctional safety component is characterized in that a precise filtering membrane is arranged in the shell and divides an inner cavity of the shell into a liquid inlet cavity and a liquid outlet cavity, the liquid inlet cavity is communicated with the liquid inlet, the liquid outlet cavity is communicated with the liquid outlet, a one-way pressure opening mechanism mounting cavity is arranged between the liquid outlet cavity and the liquid outlet, and a one-way pressure opening mechanism is mounted in the one-way pressure opening mechanism mounting cavity.
2. The multifunctional safety component for a non-gravity infusion set according to claim 1, wherein the one-way pressure opening mechanism comprises a mounting seat fixed in the one-way pressure opening mechanism mounting cavity and an elastic pressure membrane arranged at the top of the mounting seat, the top of the one-way pressure opening mechanism mounting cavity is provided with a transition port, the elastic pressure membrane corresponds to the transition port and is in contact with shoulder nails on two sides of the transition port, the liquid outlet cavity is communicated with the one-way pressure opening mechanism mounting cavity through the transition port, and the one-way pressure opening mechanism mounting cavity is communicated with the liquid outlet.
3. The multifunctional safety component of claim 1, wherein the one-way pressure release mechanism comprises a spring fixed in the one-way pressure release mechanism mounting cavity and a movable plunger arranged at the top of the spring, the top of the one-way pressure release mechanism mounting cavity is provided with a transition port, the movable plunger corresponds to the transition port and contacts shoulder nails on two sides of the transition port, the liquid outlet cavity is communicated with the one-way pressure release mechanism mounting cavity through the transition port, and the one-way pressure release mechanism mounting cavity is communicated with the liquid outlet.
4. A multifunctional safety feature for a non-gravity infusion set according to claim 2 or 3, wherein the housing is provided with a gas permeable filter mechanism.
5. The multifunctional safety component of claim 4, wherein the air permeable filtering mechanism comprises an air permeable hole communicated with the liquid inlet cavity, and the air permeable hole is provided with an air permeable membrane.
6. A multifunctional safety feature for a non-gravity infusion set according to claim 2 or 3, wherein the housing is provided with precision pressure conducting means.
7. The multifunctional safety component of claim 6, wherein the precise pressure conduction mechanism comprises a pressure conduction port communicated with the liquid inlet cavity or the liquid outlet cavity, and a precise pressure conduction membrane is arranged at the pressure conduction port and is in contact with a force sensor on the liquid infusion pump.
8. The multifunctional safety component of claim 6, wherein the precise pressure transmission mechanism is a precise pressure sensor disposed on the inner wall of the liquid inlet chamber or the liquid outlet chamber, and the signal of the precise pressure sensor is connected to the circuit of the liquid delivery pump through a cable or a conductive node disposed on the surface of the multifunctional safety component to transmit the pressure signal to the liquid delivery pump.
9. The multifunctional safety component of claim 1, wherein the inlet is connected to an infusion pump of an infusion pump, and the outlet is connected to a patient via an infusion line.
10. The multifunctional safety component for a non-gravity infusion set according to claim 7, wherein the microfiltration membrane is made of a nuclear pore membrane, polyether sulfone (PES) or nylon medical grade microporous hydrophilic filter membrane material; the elastic pressure membrane is made of 0.2-2mm medical silicon rubber medical grade elastic material; the material of the breathable film is Polytetrafluoroethylene (PTFE) and polypropylene (PP) hydrophobic filter membrane material; the precise pressure conduction membrane is made of PVC, PE and silica gel medical grade thin film materials with the thickness of 0.1-0.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911038257.5A CN110841136A (en) | 2019-10-29 | 2019-10-29 | Multifunctional safety component for non-gravity infusion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911038257.5A CN110841136A (en) | 2019-10-29 | 2019-10-29 | Multifunctional safety component for non-gravity infusion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110841136A true CN110841136A (en) | 2020-02-28 |
Family
ID=69598988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911038257.5A Pending CN110841136A (en) | 2019-10-29 | 2019-10-29 | Multifunctional safety component for non-gravity infusion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110841136A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112263748A (en) * | 2020-09-15 | 2021-01-26 | 河南科技大学第一附属医院 | Medical micro pump |
| WO2022151945A1 (en) * | 2021-01-12 | 2022-07-21 | 北京来普惠康医学技术有限公司 | Structure for non-gravity infusion apparatus and having pressure opening and pressure measuring functions |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101987214A (en) * | 2010-12-15 | 2011-03-23 | 广东康尔美医疗器械有限公司 | Automatic infusion apparatus |
| CN204766847U (en) * | 2015-06-09 | 2015-11-18 | 河南曙光健士医疗器械集团股份有限公司 | Developments liquid medicine filter for pump |
| WO2015188576A1 (en) * | 2014-06-14 | 2015-12-17 | 山东新华安得医疗用品有限公司 | Self-venting, anti-bubble, automatic fluid checking, precision filtration, infusion apparatus |
| CN106902411A (en) * | 2015-12-23 | 2017-06-30 | 黄超 | A kind of disposable automatic exhaust stops liquid precision filter infusion set |
| CN212016350U (en) * | 2019-10-29 | 2020-11-27 | 北京来普惠康医学技术有限公司 | Multifunctional safety component for non-gravity infusion apparatus |
-
2019
- 2019-10-29 CN CN201911038257.5A patent/CN110841136A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101987214A (en) * | 2010-12-15 | 2011-03-23 | 广东康尔美医疗器械有限公司 | Automatic infusion apparatus |
| WO2015188576A1 (en) * | 2014-06-14 | 2015-12-17 | 山东新华安得医疗用品有限公司 | Self-venting, anti-bubble, automatic fluid checking, precision filtration, infusion apparatus |
| CN204766847U (en) * | 2015-06-09 | 2015-11-18 | 河南曙光健士医疗器械集团股份有限公司 | Developments liquid medicine filter for pump |
| CN106902411A (en) * | 2015-12-23 | 2017-06-30 | 黄超 | A kind of disposable automatic exhaust stops liquid precision filter infusion set |
| CN212016350U (en) * | 2019-10-29 | 2020-11-27 | 北京来普惠康医学技术有限公司 | Multifunctional safety component for non-gravity infusion apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112263748A (en) * | 2020-09-15 | 2021-01-26 | 河南科技大学第一附属医院 | Medical micro pump |
| WO2022151945A1 (en) * | 2021-01-12 | 2022-07-21 | 北京来普惠康医学技术有限公司 | Structure for non-gravity infusion apparatus and having pressure opening and pressure measuring functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2536260C2 (en) | Pressure control in fluid container | |
| CN110841136A (en) | Multifunctional safety component for non-gravity infusion apparatus | |
| US20100225494A1 (en) | Fluid Flow Outage Safety and Warning Device | |
| CN212016350U (en) | Multifunctional safety component for non-gravity infusion apparatus | |
| CN104436360A (en) | Automatic exhaust and automatic liquid stopping dropping bucket and automatic exhaust and automatic liquid stopping method thereof | |
| US9364109B2 (en) | Hydration system | |
| US8905330B2 (en) | Hydration system | |
| CN110251741A (en) | It is a kind of to can be realized the Multifunctional central attraction system remotely monitored | |
| CN102824664A (en) | Automatically alarming and interrupting device for fluid infusion device | |
| CN204379887U (en) | A kind of automatic vent automatic liquid-stopping dropping funnel | |
| CN214970107U (en) | Structure for non-gravity infusion apparatus and having pressure opening and pressure measuring functions | |
| RU154545U1 (en) | DEVICE FOR SAFE INJECTION OF LIQUID | |
| CN217067175U (en) | Negative pressure drainage device capable of accurately measuring | |
| CN206228670U (en) | A kind of pneumatic type gathers hematological system | |
| CN209933678U (en) | Electric portable transfusion device | |
| CN106178165B (en) | A kind of pneumatic type acquisition hematological system and its application method | |
| CN211272745U (en) | Automatic gastrolavage machine | |
| CN213217029U (en) | Disposable negative pressure blood collection tube | |
| CN208785467U (en) | A kind of multifunctional medical infusion alarm | |
| CN209060331U (en) | A kind of warning device for swollen palace machine | |
| CN208869597U (en) | Measure the liquid bacterial rejection tests system that normal pore size is 0.2 μm of air filter | |
| CN202859799U (en) | Pressure-controlled automatic infusion stop device | |
| CN204734788U (en) | Buoyancy formula non return infusion set | |
| CN117205419B (en) | Ventilation method capable of controlling ventilation and artificial resuscitator device | |
| CN217219686U (en) | Drainage measurement collector suit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |