CN112972812A - Controllable pipeline system of fluid for syringe - Google Patents

Controllable pipeline system of fluid for syringe Download PDF

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Publication number
CN112972812A
CN112972812A CN202110207400.XA CN202110207400A CN112972812A CN 112972812 A CN112972812 A CN 112972812A CN 202110207400 A CN202110207400 A CN 202110207400A CN 112972812 A CN112972812 A CN 112972812A
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China
Prior art keywords
valve
control valve
conduit
syringe
assembly
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CN202110207400.XA
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Chinese (zh)
Inventor
王卫
陈国旗
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Nanjing Jusha Display Technology Co Ltd
Nanjing Jusha Medical Technology Co Ltd
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Nanjing Jusha Display Technology Co Ltd
Nanjing Jusha Medical Technology Co Ltd
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Priority to CN202110207400.XA priority Critical patent/CN112972812A/en
Publication of CN112972812A publication Critical patent/CN112972812A/en
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    • 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
    • A61M5/007—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 for contrast media
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/223—Multiway valves
    • 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
    • A61M5/1407—Infusion of two or more substances
    • A61M5/1408—Infusion of two or more substances in parallel, e.g. manifolds, sequencing valves
    • 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
    • A61M5/1413—Modular systems comprising interconnecting elements
    • 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
    • A61M5/14212—Pumping with an aspiration and an expulsion action
    • A61M5/14216—Reciprocating piston type
    • 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
    • A61M5/168—Means 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
    • A61M5/16804—Flow controllers
    • A61M5/16827—Flow controllers controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths
    • 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
    • A61M5/168—Means 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
    • A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
    • A61M5/1684—Monitoring, detecting, signalling or eliminating infusion flow anomalies by detecting the amount of infusate remaining, e.g. signalling end of infusion
    • 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
    • A61M5/168—Means 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
    • A61M5/16877—Adjusting flow; Devices for setting a flow rate
    • A61M5/16881—Regulating valves
    • 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
    • A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
    • A61M5/365—Air detectors
    • 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
    • A61M2005/1401—Functional features
    • A61M2005/1402—Priming
    • 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
    • A61M2005/1401—Functional features
    • A61M2005/1403—Flushing or purging
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M2039/226—Spindles or actuating means
    • 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
    • A61M2205/3306—Optical measuring means
    • 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
    • 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
    • A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates

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

Abstract

The invention discloses a controllable pipeline system of fluid for a syringe, which comprises: the device comprises at least one needle cylinder, wherein a reciprocating piston is arranged in the needle cylinder and is driven by a driving mechanism; one end of the puncture outfit is connected with a container for storing medicament, and the other end of the puncture outfit is communicated with the needle cylinder through a first catheter and a second catheter in sequence; a third conduit is communicated with one side of the communication position of the first conduit and the second conduit, and the third conduit leads the medicament out to the patient through a collecting pipe and an extension pipe; at least one control valve disposed in communication with the first, second and third conduits, the control valve being actuated by a valve actuation assembly. The invention does not need to frequently replace the medicine suction and injection pipelines and the contrast medium and the needle cylinder, thereby saving time; meanwhile, the invention can realize high-pressure injection and can avoid unstable fluid flow rate caused by injection pressure fluctuation.

Description

Controllable pipeline system of fluid for syringe
Technical Field
The invention relates to a controllable fluid pipeline system for an injector, and belongs to the technical field of medical instruments.
Background
In many medical diagnostic and interventional procedures, a physician or other personnel injects saline or contrast media into a patient in conjunction with Computed Tomography (CT), Digital Subtraction Angiography (DSA), and magnetic resonance system (MR) imaging to assist in the diagnosis and treatment of the physician. The high-pressure injectors in the current market are mainly divided into syringe type high-pressure injectors and peristaltic pump high-pressure injectors, which means that two matched pipeline systems also exist in the current market. The tubing system is used in conjunction with a syringe or peristaltic pump to inject contrast media or saline into a particular region of the body to obtain enhanced images of that region, which may be helpful for a physician to diagnose.
The current syringe type injectors are mainly divided into single-barrel injectors and double-barrel injectors, and when an operator performs injection diagnosis, the contrast medium or physiological saline in a container is usually sucked into a corresponding syringe through a medicine suction pipeline and then injected into a human body through an injection pipeline. Such high-pressure syringes are cumbersome to operate, and switching of the drug suction and injection lines wastes time of operators, thereby reducing the diagnosis efficiency of hospitals.
In view of the fact that a syringe type injector affects the diagnosis efficiency, an injector taking a peristaltic pump as a power source is appeared on the market, the injector abandons a syringe as a transfer station of normal saline and contrast medium, and directly realizes the theoretical uninterrupted injection in the form of a whole set of pipeline system, thereby reducing the time for replacing the pipeline for operators and improving the injection diagnosis efficiency of hospitals, but the syringes of the type are directly acted on the pipeline system by the peristaltic pump and are limited by the characteristics of the peristaltic pump and the hose, the syringes can not realize the high-pressure injection of the syringe type syringes, meanwhile, the pressure of the physiological saline or the contrast agent in the hose is unstable, so that periodic wave crest and wave trough pressure circulation is formed, further, the speed of the saline or contrast agent injected into the patient is unstable, which affects the final imaging effect.
Disclosure of Invention
The invention provides a fluid controllable pipeline system for a syringe, which can solve the problems of time waste caused by frequent replacement of medicine suction and injection pipelines and replacement of a syringe for replacing a contrast medium of a traditional syringe type syringe, and can also solve the problems that a peristaltic pump type syringe hose system cannot realize high-pressure injection and the flow rate of fluid is unstable caused by injection pressure fluctuation.
In order to solve the above technical problem, the present invention provides a controllable fluid pipeline system for a syringe, the pipeline system comprising:
the device comprises at least one needle cylinder, wherein a reciprocating piston is arranged in the needle cylinder and is driven by a driving mechanism;
one end of the puncture outfit is connected with a container for storing medicament, and the other end of the puncture outfit is communicated with the needle cylinder through a first catheter and a second catheter in sequence;
a third conduit is communicated with one side of the communication position of the first conduit and the second conduit, and the third conduit leads the medicament out to the patient through a collecting pipe and an extension pipe;
at least one control valve disposed in communication with the first, second and third conduits, the control valve being actuated by a valve actuation assembly.
Preferably, the puncture outfit further comprises a frame, and the puncture outfit, the control valve, the valve driving assembly and the collecting pipe are fixed on the frame.
Preferably, the valve driving assembly comprises a motor and a valve matching assembly which are fixed on a motor fixing plate, the motor fixing plate is fixed on the frame, the motor is connected with the valve matching assembly through a motor shaft, the control valve is fixed on the frame through a valve support, the control valve comprises a valve body and a handle fixed on the valve body, and the handle is embedded into a groove of the valve matching assembly.
Preferably, a first optocoupler and a second optocoupler are arranged on the motor fixing plate, and a connecting line of the first optocoupler and the valve matching assembly is perpendicular to a connecting line of the second optocoupler and the valve matching assembly; the valve cooperation assembly comprises a valve fitting piece and an optical coupling separation blade arranged on the valve fitting piece, and the optical coupling separation blade can trigger a first optical coupler and a second optical coupler.
Preferably, a valve in-place detection assembly is arranged on the motor fixing plate and comprises a microswitch, a support, a spring and a thimble, the thimble penetrates through the support to be connected with the microswitch, and the spring is arranged between the thimble and the support.
Preferably, a first bubble sensor is arranged on a first conduit between the puncture outfit and the control valve, and the first bubble sensor is close to the puncture outfit end; a second bubble sensor is disposed between the manifold and the patient line, the second bubble sensor being proximate to the manifold end.
Preferably, the first catheter, the second catheter and the third catheter are connected with the syringe, the control valve, the puncture outfit and the collection tube through welding or luer connectors.
Preferably, the manifold is fixed to the frame by at least one fixing point, and the manifold is integrally formed by injection molding.
Preferably, the driving mechanism is a motor, and the motor is connected with a piston in the needle cylinder through a push rod.
The invention achieves the following beneficial effects:
(1) the invention does not need to frequently replace the medicine suction and injection pipelines and the contrast medium and the needle cylinder, thereby saving time; meanwhile, the push rod is driven by the motor, the push rod drives the syringe piston, and compared with a high-pressure injector of a peristaltic pump, the high-pressure injection device has the advantages that the motor can drive to bring higher injection pressure, meanwhile, the motor is continuously driven, pressure periodic fluctuation like the peristaltic pump cannot exist, high-pressure injection can be realized, and unstable fluid flow rate caused by injection pressure fluctuation can be avoided.
(2) The invention is provided with at least two contrast agent branch pipelines, can realize simultaneous liquid absorption of different branch pipelines when executing a liquid absorption function, and can realize uninterrupted injection of the same contrast agent and switching injection of different contrast agents when executing an injection function.
Drawings
FIG. 1 is a schematic view of the overall configuration of a fluid controlled tubing system for a syringe according to the present invention;
FIG. 2 is a schematic structural view of the manifold assembly of the present invention;
FIG. 3 is a schematic view of the construction of the valve carriage of the present invention;
FIG. 4 is a schematic structural view of the valve drive assembly of the present invention;
FIG. 5 is a schematic illustration of the positional relationship of the components of the valve drive assembly of the present invention;
FIG. 6 is a schematic view of the position relationship between the valve position sensing assembly and the valve carriage of the present invention;
FIG. 7 is a state of the valve in position detection assembly when the control valve is not in position;
FIG. 8 is a state of the valve in-position detection assembly with the control valve in position;
FIG. 9 is a schematic structural view of the valve mating assembly of the present invention;
FIG. 10 is a front elevational view of the control valve in the imbibed state of the invention;
FIG. 11 is a rear elevational view of the control valve in the imbibed state of the invention;
FIG. 12 is a front view of the control valve in the injecting state of the present invention;
fig. 13 is a rear view of the control valve in the injecting state of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 is an overall composition diagram of a fluid controllable pipeline system for an injector. The valve mainly comprises two parts, namely a pipeline component 1 and a valve driving component 2. Wherein the pipeline component 1 is a fluid conveying carrier; the valve driving assembly 2 is a power source for rotating the valve, and the valve driving assembly 2 drives the valve to rotate, so that different passage states of the pipeline assembly are realized, and the function of controllable fluid flow is realized. The respective components are explained in detail below.
As shown in fig. 2, the tube system comprises three branch tubes, one tube on the left side is a saline solution branch tube, two tubes on the right side are contrast agent branch tubes, each branch tube comprises a puncture outfit, a first conduit 107, a control valve 110, a third conduit 113, a second conduit 119 and a syringe, the syringe comprises a first syringe 122, a second syringe 123 and a third syringe 124, one end of the puncture outfit is connected with a container for storing medicament, the other end is communicated with the syringe through the first conduit 107 and the second conduit 119 in sequence, and a reciprocating piston is arranged in the syringe. The third conduit 113 is communicated with one side where the first conduit 107 and the second conduit 119 are communicated, the third conduit 113 leads the medicament out to the patient through a collecting pipe 116 and an extension pipe 118, and the control valve 110 is arranged at the communication position of the first conduit 107, the second conduit 119 and the third conduit 113.
The puncture outfit comprises a first puncture outfit 101, a second puncture outfit 102 and a third puncture outfit 103, wherein the puncture outfit 101 corresponds to a physiological saline pipeline and is connected with a container for storing physiological saline, and the puncture outfits 102 and 103 respectively correspond to a contrast agent pipeline and are respectively connected with the container for storing contrast agent. A first bubble sensor 104 is arranged on a first conduit 107 between the puncture outfit and the control valve 110, and the first bubble sensor 104 is close to the end of the puncture outfit; a second bubble sensor 117 is disposed between the manifold 116 and the patient circuit, with the second bubble sensor 117 being located near the end of the manifold 116. The first bubble sensor 104 is used to detect whether the saline or contrast agent in the respective puncture device contact container is used up, and the second bubble sensor 117 is used to detect whether bubbles exist in the tube line in the injection state of the syringe. The advantage of the left side as a saline line is that the common line can be cleaned to the maximum extent when the contrast agent in the line is switched. For the two working conditions of the system, namely the liquid suction and the injection, the working principle of the three branch pipelines is the same, and the left physiological saline pipeline is taken as an example for description. The imbibition operating mode is that under the action of the valve driving component 2, the control valve 110 is modulated to be in an imbibition state, at the moment, the first puncture outfit 101, the first conduit 107, the control valve 110, the second conduit 119 and the first syringe 122 are in a communication state, under the action of pulling back the push rod of the first syringe 122, the physiological saline enters the first syringe 122 along the passage, wherein the air bubble sensor 104 is used for detecting whether the solution in the physiological saline container is used up in real time so as to stop imbibition in time and replace the physiological saline solution; the injection condition is that the control valve is modulated to the injection state by the valve driving component 2, at this time, the first syringe 122, the second conduit 119, the control valve 110, the third conduit 113, the collecting conduit 116 and the extension conduit 118 are in the conducting state, under the action of pushing the push rod of the first syringe 122 forward, the physiological saline is injected into the human body along the above-mentioned path, and the function of the bubble sensor 117 is to detect whether bubbles exist in the injection pipeline in real time, so as to stop the injection in time, and avoid the dangerous condition that the bubbles are injected into the human body.
The control valve is fixed above the corresponding bracket to switch the conducting state of the control valve, and as shown in fig. 3, the valve bracket 201 is fixed on the frame 204 by bolts to receive and fix the control valve 110. Wherein the fixing point of the control valve is fixed at the adjacent side, and the position of the frame 204 corresponding to the control valve is a fan-shaped cut so that the control valve can be taken down at any position.
As shown in fig. 4 and 5, the valve driving assembly 2 is composed of a motor 301, a first optical coupler 304, a second optical coupler 309, a valve fitting assembly 307, a valve in-place detection assembly 308, and a motor fixing plate 316, wherein the motor fixing plate 316 is fixed on the frame 204, the motor 301 is connected with the valve fitting assembly 307 through a motor shaft, the control valve 110 is fixed on the frame 204 through a valve bracket 201, the control valve 110 includes a valve body 1102 and a handle 1101 fixed on the valve body 1102, and the handle 1101 is embedded in a groove of the valve fitting assembly 307. A first optocoupler 304 and a second optocoupler 309 are arranged on the motor fixing plate 316, and a connecting line of the first optocoupler 304 and the valve matching component 307 is perpendicular to a connecting line of the second optocoupler 309 and the valve matching component 307; the valve mating assembly 307 includes a valve mating piece 3071 and a light coupler flap 3072 disposed on the valve mating piece 3071, the light coupler flap 3072 being capable of activating the first light coupler 304 and the second light coupler 309.
Taking a single valve control assembly as an example for power transmission and position detection, the motor 301 serves as a power source for valve control, and transmits a rotation torque to the valve mating piece 307 through a motor shaft to drive the rotation of the control valve handle 1101, wherein the first optical coupler 304 and the second optical coupler 309 serve as position detection elements of the control valve, so as to further control the rotation angle of the motor, the valve mating piece 307 can only be switched back and forth between the optical couplers 304 and 309 in a 90 ° interval, and the valve position detection assembly 308 is used for detecting whether the control valve is correctly installed on the valve bracket 201, so as to further confirm the state of the device.
Fig. 6 shows the positional relationship between the valve position detecting assembly 308 and the valve holder 201, and fig. 7 and 8 show two states of the valve position detecting assembly 308 when the control valve 110 is in the position and not in the position. The valve in-place detection assembly 308 is composed of a microswitch 3081, a support 3082, a spring 3083 and a thimble 3084, the thimble 3084 penetrates through the support 3082 to be connected with the microswitch 3081, and the spring 3083 is arranged between the thimble 3084 and the support 3082. As shown in fig. 7, which is the state of the assembly when the control valve 110 is not installed, the boss of the needle 3084 is in contact with the back of the valve holder 110 by the action of the spring force, and the micro switch 3081 is in the off state, and when the control valve 110 is installed on the valve holder 201, the needle 3084 is moved backward by the action of the control valve, and the spring is compressed, and the needle further triggers the micro switch to indicate that the control valve is installed in place, as shown in the right side of fig. 7 to indicate that the control valve is installed in place.
Fig. 9 shows a valve mating assembly 307, which is comprised of a valve mating piece 3071 and a light coupling flap 3072. The light coupling flap 3072 is fixed to the valve mating piece 3071 in a relatively stationary relationship. The following describes how the control valve can achieve two conditions of the line system suction and injection in combination with two states of the control valve.
As shown in fig. 10 and 11, the handle 1101 of the control valve 110 is rotated clockwise by the axial force applied to the valve mating member by the motor, when the optical coupler 309 is triggered by the optical coupler flap 3072, the motor stops rotating, at this time, the control valve 110 is in a imbibing state, fig. 10 is a front view of the control valve 110, fig. 11 is a rear view of the control valve 110, and is also a diagram of the position relationship between the handle 1101 of the control valve 110 and the valve body 1102, at this time, the pipeline system branch corresponding to the saline can perform the imbibing function, and the working principle of the branch pipelines of the other two contrast agents is the same as that of the.
As shown in fig. 12 and 13, the handle 1101 of the control valve 110 rotates counterclockwise under the axial force applied by the motor to the valve mating member, when the optical coupler 304 is triggered by the optical coupler stop 3072, the motor stops rotating, at this time, the control valve 110 is in an injection state, fig. 12 is a front view of the control valve 110, fig. 13 is a rear view of the control valve 110, and is a position relation diagram of the handle 1101 of the control valve 110 relative to the valve body 1102, at this time, the pipeline system branch corresponding to the saline can perform an injection function, and the working principle of the branch pipelines of the other two contrast agents is the same as that of the normal saline.
Since the system has at least two branch lines for contrast agent, the system can realize the uninterrupted injection of the same contrast agent and the switching injection of different contrast agents. The two different scenarios described above will be described below.
(1) Uninterrupted injection of the same contrast agent
As mentioned above, during the injection process, when the contrast agent in the second syringe 123 is not enough to satisfy the set dosage, the system can detect the dosage in the second syringe 123 in real time, and when the dosage in the second syringe 123 is about to run out, the system automatically switches to the contrast agent branch line corresponding to the third syringe 124 for injection, so as to achieve uninterrupted injection of the same contrast agent.
(2) Switched injection of different contrast agents
Due to the different diagnostic requirements, different contrast agents are often used, for example, the two contrast agent branch lines are used, the contrast agent used by the second syringe 123 is a, and the contrast agent used by the third syringe 124 is B. When the contrast agent used in the previous case is A, before the injection of the next case, the system starts the injection function of the first syringe 122, the common pipeline is cleaned by using the physiological saline, and after the cleaning is finished, the system switches the contrast agent pipeline corresponding to the third syringe 124 to the injection state, so that the switching injection of different contrast agents is realized.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (9)

1. A fluid controlled tubing system for a syringe, the tubing system comprising:
the device comprises at least one needle cylinder, wherein a reciprocating piston is arranged in the needle cylinder and is driven by a driving mechanism;
one end of the puncture outfit is connected with a container for storing medicament, and the other end of the puncture outfit is communicated with the needle cylinder through a first catheter and a second catheter in sequence;
a third conduit is communicated with one side of the communication position of the first conduit and the second conduit, and the third conduit leads the medicament out to the patient through a collecting pipe and an extension pipe;
at least one control valve disposed in communication with the first, second and third conduits, the control valve being actuated by a valve actuation assembly.
2. The system of claim 1, further comprising a frame, wherein the spike, the control valve, the valve actuation assembly, and the manifold are secured to the frame.
3. The fluid controlled tubing system for a syringe of claim 2, wherein said valve driving assembly comprises a motor and a valve engaging assembly fixed to a motor fixing plate, said motor fixing plate is fixed to said frame, said motor is connected to said valve engaging assembly by a motor shaft, said control valve is fixed to said frame by a valve bracket, said control valve comprises a valve body and a handle fixed to said valve body, said handle is inserted into a recess of said valve engaging assembly.
4. The controllable fluid pipeline system for the injector according to claim 3, wherein a first optical coupler and a second optical coupler are arranged on the motor fixing plate, and a connecting line of the first optical coupler and the valve matching component is perpendicular to a connecting line of the second optical coupler and the valve matching component; the valve cooperation assembly comprises a valve fitting piece and an optical coupling separation blade arranged on the valve fitting piece, and the optical coupling separation blade can trigger a first optical coupler and a second optical coupler.
5. The controllable fluid pipeline system according to claim 3, wherein the motor fixing plate is provided with a valve in-place detection assembly, the valve in-place detection assembly comprises a micro switch, a bracket, a spring and a thimble, the thimble penetrates through the bracket and is connected with the micro switch, and the spring is arranged between the thimble and the bracket.
6. The controllable fluid conduit system of claim 1, wherein a first bubble sensor is disposed on a first conduit between the puncture device and the control valve, and the first bubble sensor is close to the puncture device end; a second bubble sensor is disposed between the manifold and the patient line, the second bubble sensor being proximate to the manifold end.
7. The controllable fluid tubing system for a syringe of claim 1, wherein the first, second and third conduits are connected to the syringe, the control valve, the spike and the manifold by welding or by luer fitting.
8. The fluid controlled tubing system for an injector of claim 2, wherein said manifold is fixed to said frame by at least one fixation point, said manifold being integrally formed by injection molding.
9. The fluid controlled tubing system of claim 1, wherein the driving mechanism is an electric motor, and the electric motor is connected to the piston inside the syringe through a push rod.
CN202110207400.XA 2021-02-25 2021-02-25 Controllable pipeline system of fluid for syringe Pending CN112972812A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
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WO2023036338A1 (en) * 2021-09-13 2023-03-16 临床支持有限公司 High-pressure contrast injector and accessories

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CN107638610A (en) * 2017-09-22 2018-01-30 深圳市信冠机电有限公司 A kind of automatic injection system
CN207024341U (en) * 2017-02-09 2018-02-23 广州友沃医疗设备有限公司 Contrast agent high pressure injector
CN211096636U (en) * 2019-09-17 2020-07-28 无锡市宇寿医疗器械有限公司 High-pressure radiography injector system capable of being continuously used

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CN204352308U (en) * 2014-12-25 2015-05-27 江苏国宸宁泰医疗器械有限公司 A kind of squash type high-pressure injection pipeline system
CN207024341U (en) * 2017-02-09 2018-02-23 广州友沃医疗设备有限公司 Contrast agent high pressure injector
CN107638610A (en) * 2017-09-22 2018-01-30 深圳市信冠机电有限公司 A kind of automatic injection system
CN211096636U (en) * 2019-09-17 2020-07-28 无锡市宇寿医疗器械有限公司 High-pressure radiography injector system capable of being continuously used

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