CN115382046A - Radiography system, method and storage medium - Google Patents
Radiography system, method and storage medium Download PDFInfo
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- CN115382046A CN115382046A CN202211027159.3A CN202211027159A CN115382046A CN 115382046 A CN115382046 A CN 115382046A CN 202211027159 A CN202211027159 A CN 202211027159A CN 115382046 A CN115382046 A CN 115382046A
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Abstract
The embodiment of the application belongs to the field of medical instruments and relates to a radiography system which comprises a transfusion mechanism, a detection mechanism and a control mechanism; the infusion mechanism comprises a barrel, a push rod arranged on the barrel in a sliding way, a power source connected with the push rod and a liquid path component used for communicating an infusion end of the barrel with a conduit; the power source and the detection mechanism are electrically connected with the control mechanism; the control mechanism is used for acquiring an actual resistance value when the push rod moves along the withdrawing direction and an actual gas flow of the infusion end of the infusion mechanism; determining whether the catheter is in a safe state according to a first comparison result of the actual resistance value and the preset resistance value, and determining whether bubbles exist in the infusion mechanism according to a second comparison result of the actual gas flow and the preset actual gas flow; if the catheter is in a safe state and no air bubble exists in the infusion mechanism, the infusion operation is executed. The application also relates to a method of imaging and a storage medium. The application effectively improves the safety of the radiography operation.
Description
Technical Field
The present application relates to the field of medical device technology, and more particularly, to an imaging system, method, and storage medium.
Background
At present, in the delivery process of a catheter, an operator cannot observe and know the overall view of delivery of the catheter in a pipeline, and can only judge whether the catheter is contacted with the inner wall of the pipeline or not and whether bubbles exist in an infusion mechanism or not by depending on self experience of the operator, but the mode is easily influenced by human factors, the phenomenon of artificial misjudgment occurs, and the safety of the radiography operation is low.
Disclosure of Invention
The embodiment of the application provides an imaging system, an imaging method and a storage medium, which are used for solving the problem of low safety of an imaging operation in the prior art.
In order to solve the above technical problem, an embodiment of the present application further provides an imaging system, which adopts the following technical solutions:
an imaging system comprises a transfusion mechanism, a detection mechanism and a control mechanism;
the infusion mechanism comprises a cylinder, a push rod, a power source and a liquid path component; the cylinder body is of a hollow structure; one end of the push rod is slidably arranged in the barrel; the power source is electrically connected with the control mechanism, and the output end of the power source is connected with the other end of the push rod so as to drive the push rod to slide in the barrel along the withdrawing direction or the injecting direction; one end of the liquid path component is communicated with the transfusion end of the cylinder body, and the other end of the liquid path component is communicated with the guide pipe;
the detection mechanism is electrically connected with the control mechanism and is used for detecting an actual resistance value when the push rod moves along the pumping-back direction and detecting an actual gas flow at the infusion end of the cylinder body;
the control mechanism is used for receiving a pumpback confirmation instruction; controlling a power source to drive a push rod of the infusion mechanism to move along a drawing-back direction according to the drawing-back confirmation instruction, and acquiring an actual resistance value of the push rod of the infusion mechanism when the push rod moves along the drawing-back direction and an actual gas flow of an infusion end of the infusion mechanism; determining whether the catheter is in a safe state according to a first comparison result of the actual resistance value and a preset resistance value, and determining whether bubbles exist in the infusion mechanism according to a second comparison result of the actual gas flow and the preset actual gas flow; and if the catheter is in a safe state and no air bubble exists in the infusion mechanism, carrying out infusion operation.
Furthermore, the power source comprises a threaded sleeve, a screw rod and a driving motor electrically connected with the control mechanism, the threaded sleeve is in threaded connection with the screw rod, the output end of the driving motor is in transmission connection with the screw rod, and the other end of the push rod is fixedly connected with the threaded sleeve; or the like, or, alternatively,
the power source is a pneumatic driving piece, and the output end of the pneumatic driving piece is in transmission connection with the other end of the push rod; or the like, or, alternatively,
the power source is a hydraulic driving piece, and the output end of the hydraulic driving piece is in transmission connection with the other end of the push rod; or the like, or, alternatively,
the power source is a peristaltic pump, and two ends of the peristaltic pump are respectively communicated with one end of the liquid path assembly and the infusion end of the barrel.
Further, the detection mechanism comprises a pressure sensor and a bubble sensor, the pressure sensor is arranged on the push rod, and the bubble sensor is arranged at the infusion end of the barrel.
In order to solve the above technical problem, an embodiment of the present application further provides a contrast method, which adopts the following technical solutions:
receiving a pumpback confirmation instruction;
controlling a power source to drive a push rod of the infusion mechanism to move along a drawing-back direction according to the drawing-back confirmation instruction, and acquiring an actual resistance value of the push rod of the infusion mechanism when the push rod moves along the drawing-back direction and an actual gas flow of an infusion end of the infusion mechanism;
determining whether the catheter is in a safe state according to a first comparison result of the actual resistance value and a preset resistance value, and determining whether bubbles exist in the infusion mechanism according to a second comparison result of the actual gas flow and the preset actual gas flow;
and if the catheter is in a safe state and no air bubble exists in the infusion mechanism, carrying out infusion operation.
Further, the step of determining whether the catheter is in a safe state according to the first comparison result of the actual resistance value and the preset resistance value comprises:
if the first comparison result is that the actual resistance value meets a preset resistance value, determining that the catheter is not in a safe state, controlling the power source to drive a push rod of the infusion mechanism to move along a pushing direction, and sending alarm information, wherein the pushing direction is opposite to the withdrawing direction;
and if the first comparison result is that the actual resistance value does not meet the preset resistance value, acquiring the actual displacement value of the push rod of the infusion mechanism, and controlling the power source to drive the push rod of the infusion mechanism to execute corresponding actions according to a third comparison result of the actual displacement value and the preset displacement value.
Further, the pumpback confirmation instruction includes a pumpback displacement value; the step of controlling the power source to drive the push rod of the infusion mechanism to execute corresponding actions according to the third comparison result of the actual displacement value and the preset displacement value comprises the following steps:
if the actual displacement value does not meet the preset displacement value, determining that the catheter is not in a safe state, controlling the power source to drive a push rod of the infusion mechanism to move along the injection direction, and sending alarm information;
and if the actual displacement value meets the preset displacement value, determining that the catheter is in a safe state, and controlling the power source to drive the push rod of the infusion mechanism to continue to move along the pumping-back direction until the actual displacement value meets the pumping-back displacement value.
Further, the step of determining whether bubbles exist in the infusion mechanism according to a second comparison result between the actual gas flow and a preset actual gas flow comprises the following steps of:
if the second comparison result is that the actual gas flow does not meet the preset gas threshold, determining that no bubble exists in the infusion mechanism, and executing infusion operation when the actual displacement value meets the pumping-back displacement value;
and if the second comparison result shows that the actual gas flow meets a preset gas threshold, determining that bubbles exist in the infusion mechanism, controlling the power source to stop driving a push rod of the infusion mechanism to move along the pumping-back direction, and sending alarm information.
Further, before the step of performing the infusion operation, the method further comprises:
receiving an infusion instruction;
the step of performing an infusion operation comprises:
if the type of the infusion instruction is a full-automatic infusion instruction, acquiring current injection parameters of the infusion mechanism, determining a target injection speed of a push rod of the infusion mechanism according to the current injection parameters, determining an actual injection speed according to a fourth comparison result of the target injection speed and a preset injection speed, and controlling the power source to drive the push rod of the infusion mechanism to move along a bolus injection direction at the actual injection speed;
if the type of the infusion instruction is a semi-automatic infusion instruction, extracting a set injection speed from the semi-automatic infusion instruction, and controlling the power source to drive the push rod of the infusion mechanism to move at a constant speed along the injection direction at the set injection speed.
Further, the current injection parameter includes a current injection duration; the step of determining the actual injection speed according to the fourth comparison result of the target injection speed and the preset injection speed, and controlling the power source to drive the push rod of the infusion mechanism to move along the bolus injection direction at the actual injection speed comprises the following steps:
if the fourth comparison result shows that the target injection speed meets the preset injection speed, taking the target injection speed as the actual injection speed, and controlling the push rod of the infusion mechanism to continue to move along the injection direction at the actual injection speed until the current injection time reaches the preset injection time;
if the fourth comparison result shows that the target injection speed does not meet the preset injection speed, adjusting the target injection speed according to the difference value between the target injection speed and the preset injection speed to obtain an actual injection speed, controlling the power source to drive a push rod of the infusion mechanism to move along the injection direction at the actual injection speed, taking the actual injection speed as the target injection speed, and judging whether the target injection speed meets the preset injection speed again.
In order to solve the foregoing technical problem, an embodiment of the present application further provides a storage medium, which adopts the following technical solutions:
the storage medium has stored thereon computer readable instructions which, when executed by a control mechanism, implement the steps of the contrast method as described above.
Compared with the prior art, the embodiment of the application mainly has the following beneficial effects: by receiving a pumpback confirmation instruction; controlling a power source to drive a push rod of the infusion mechanism to move along a drawing-back direction according to the drawing-back confirmation instruction, and acquiring an actual resistance value when the push rod of the infusion mechanism moves along the drawing-back direction; and after the current catheter state is determined according to the first comparison result of the actual resistance value and the preset resistance value, controlling the power source to drive the push rod to execute corresponding movement according to the current catheter state. In this application, when confirming according to the pumpback when the push rod of instruction drive infusion mechanism moves along the pumpback direction, respectively according to whether the pipe is in safe state and the second comparison result of actual gas flow and predetermine actual gas flow is confirmed whether the bubble has in the infusion mechanism to confirm whether satisfy the condition of safe infusion, so for the mode of judging according to the experience through operating personnel among the prior art, effectively promote the safe state of pipe and the judgement accuracy whether have the bubble in the infusion mechanism, and do not have the bubble in the pipe is in safe state and infusion mechanism, carry out the infusion operation, realize the automation of operation flow, effectively promote operation efficiency and security, avoid operating personnel to receive the equipment radiation.
Drawings
In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
FIG. 1 is a schematic structural view of one embodiment of a visualization system according to the present application (the power source includes a drive motor);
FIG. 2 is a schematic structural view of one embodiment of a visualization system according to the present application (the power source includes a pneumatic drive);
FIG. 3 is a schematic structural diagram of one embodiment of a visualization system according to the present application (the power source includes a hydraulic drive);
FIG. 4 is a schematic structural diagram of one embodiment of a visualization system according to the present application (the power source includes a peristaltic pump);
FIG. 5 is a block diagram of an embodiment of a visualization system according to the present application;
FIG. 6 is a schematic diagram of an embodiment of an imaging system according to the present application with a display terminal having a mechanical button.
FIG. 7 is a schematic diagram of an embodiment of an imaging system according to the present application showing a terminal without a mechanical button.
FIG. 8 is a flow chart of one embodiment of an imaging method according to the present application.
Reference numerals:
110. a transfusion mechanism; 111. a barrel; 112. a push rod; 113. an infusion head; 114. a power source; 1141. a threaded sleeve; 1142. a screw rod; 1143. a drive motor; 115. a liquid path pipe; 120. a pressure sensor; 130. a bubble sensor; 140. a displacement sensor; 150. a flow sensor; 160. a control mechanism; 170. a display terminal; 171. a mechanical button.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof in the description and claims of this application and the description of the figures above, are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
For ease of understanding, the terms referred to in the detailed description are first described below:
(1) The pushing direction is characterized in that the push rod moves along the transfusion direction of the transfusion mechanism;
(2) The withdrawal direction is characterized in that the push rod moves along the opposite direction of the infusion mechanism.
Referring to fig. 1-5, an imaging system is provided in accordance with an embodiment of the present disclosure and includes an infusion mechanism 110, a detection mechanism, and a control mechanism 160.
In some embodiments, the infusion mechanism 110 comprises a barrel 111, a push rod 112, an infusion head 113, a power source 114, and a fluid path assembly; wherein, the cylinder 111 is a hollow structure, and the cylinder 111 is used for containing liquid (such as contrast medium); one end of the push rod 112 is slidably mounted inside the cylinder 111; the infusion head 113 is arranged at the infusion end of the cylinder 111; the output end of the power source 114 is connected with the other end of the push rod 112, so as to drive the push rod 112 to slide in the cylinder 111 along the withdrawal direction or the injection direction; the one end of above-mentioned liquid way subassembly is passed through infusion head 113 and is linked together with the infusion end of barrel 111, and the other end of liquid way subassembly is used for with the pipe intercommunication, and this liquid way subassembly is arranged in pushing the injection in-process, pushes the liquid of splendid attire in the barrel 111 to the pipe to and be arranged in the process of pumpback, whether the affirmation pipe is in safe state and whether have the bubble in the infusion mechanism 110 through push rod 112 pumpback.
Further, the power source includes a threaded sleeve 1141, a screw rod 1142 and a driving motor 1143 electrically connected to the control mechanism 160, the threaded sleeve 1141 is in threaded connection with the screw rod 1142, an output end of the driving motor 1143 is in transmission connection with the screw rod 1142, and the other end of the push rod 112 is fixedly connected to the threaded sleeve 1141; when the control mechanism 160 controls the driving motor 1143 to drive the screw rod 1142 to rotate along a first direction (e.g., a direction in which the screw rod 1142 rotates reversely), the screw rod 1142 cooperates with the thread sleeve 1141 to drive the push rod 112 to move along the retracting direction; when the control mechanism 160 controls the driving motor 1143 to drive the screw rod 1142 to rotate in a second direction (e.g. the forward rotation direction of the screw rod 1142) opposite to the first direction, the screw rod 1142 cooperates with the thread sleeve 1141 to drive the push rod 112 to move in the injection direction; the accuracy of the sliding position of the push rod 112 is effectively ensured.
In another embodiment, the power source includes a pneumatic driver (e.g., a driving cylinder)/a hydraulic driver (e.g., a hydraulic pump)/a peristaltic pump, etc. electrically connected to the control mechanism 160, which is not limited in detail herein.
Further, the liquid path assembly includes a liquid path pipe 115 and a liquid path valve; wherein, the liquid inlet end of the liquid path pipe 115 is communicated with the transfusion head 113, and the liquid outlet end of the liquid path pipe 115 is communicated with the guide pipe through the liquid path valve.
Preferably, in an embodiment, the fluid path valve is a three-way valve having a plurality of fluid path ports and a rotary valve, the rotary valve is disposed at the fluid path port for opening or closing the fluid path port, the fluid path pipe 115 is communicated with one of the fluid path ports, the catheter is communicated with the other fluid path port, and the remaining fluid path ports except the one of the fluid path ports and the other fluid path port can be used for injecting heparin water, physiological saline, and the like, and can also be used for connecting to external devices such as a blood pressure monitoring instrument and the like; in another embodiment, the fluid path valve is a Y-valve having three fluid path ports, one of which is in communication with the fluid path tube 115, another of which is in communication with the catheter, and the remaining fluid path ports are for access of a guidewire.
In some embodiments, the detection mechanism includes a pressure sensor 120, a bubble sensor 130, a displacement sensor 140, and a flow sensor 150, and the pressure sensor 120, the displacement sensor 140, the flow sensor 150, and the bubble sensor 130 are all connected to a control mechanism 160.
The pressure sensor 120 is disposed on the push rod 112, and is configured to send the detected actual resistance value of the push rod 112 to the control mechanism 160; preferably, the pressure sensor 120 is a pressure sensor 120 or a non-invasive medical pressure sensor 120.
The bubble sensor 130 is provided at the infusion end of the cylinder 111 of the infusion mechanism 110, and detects the actual gas flow rate at the infusion end of the cylinder 111 and sends the actual gas flow rate to the control mechanism 160 as a signal.
The displacement sensor 140 is provided in the cylinder 111, and detects the displacement of the plunger 112 of the infusion mechanism 110, and sends the displacement value to the control mechanism 160 as a signal.
The flow sensor 150 is disposed on the infusion head 113 or the catheter of the infusion mechanism 110, and is used for detecting a flow value passing through the infusion head 113 of the infusion mechanism 110 per unit time during the infusion process, and sending the flow value to the control mechanism 160 in a signal manner.
The control means 160 is configured to execute a contrast method described below; in particular, control mechanism 160 includes a processor, which in some embodiments may be a Central Processing Unit (CPU), a processor, a microprocessor, a microcontroller, or other data Processing chip. In this exemplary embodiment, the control unit 160 is used to execute program codes stored in a memory or process data, for example, program codes for executing the imaging method described below.
In some embodiments, the control mechanism 160 is electrically connected to the power source 114 via a wired or wireless connection; furthermore, the wired connection mode is a cable connection mode, and the wireless connection mode is a 5G connection mode.
It should be noted that the memory is built in the imaging system, and the memory includes at least one type of storage medium, and the storage medium includes a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a Read Only Memory (ROM), a charged erasable programmable read only memory (EEPROM), a Programmable Read Only Memory (PROM), a magnetic memory, a magnetic disk, an optical disk, and the like. In some embodiments, the memory may be an internal storage unit of the computer device, such as a hard disk or a memory of the computer device. In other embodiments, the memory may also be an external storage device of the computer device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), or the like provided on the computer device. Of course, the memory may also include both internal and external storage devices of the computer device. In this embodiment, the memory is generally used for storing an operating system and various types of application software installed in the computer device, such as program codes of the radiography method. In addition, the memory may also be used to temporarily store various types of data that have been output or are to be output.
The computer device can be a desktop computer, a notebook, a palm computer, a cloud server and other computing devices. The computer equipment can carry out man-machine interaction with a user in a keyboard mode, a mouse mode, a remote controller mode, a touch panel mode or a voice control equipment mode.
Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, an intervening robot or a network device) to execute the method according to the embodiments of the present application.
In some embodiments, the radiography system has an operation end and an execution end, wherein the operation end includes a display terminal 170 electrically connected to the control mechanism 160, the infusion mechanism 110 and the detection mechanism are disposed at the execution end, and an operator can generate a control command (such as a pumpback confirmation command) by operating a virtual button/mechanical button and send the control command to the control mechanism through the display terminal, and the control mechanism 110 controls the execution end (the infusion mechanism 110 and the detection mechanism) to execute according to the control command, so that the operator can remotely control the execution end through the display terminal 170, thereby avoiding the operator from being exposed in the surgical environment and causing radiation influence to the operator.
In some embodiments, referring to fig. 6, the display terminal 170 has a mechanical button 171, and an operator can generate a corresponding control command through the mechanical button 171 and send the control command to the control mechanism 160; in another embodiment, referring to fig. 7, the surface of the display terminal does not have the mechanical button 171, and the display terminal does not touch the screen at this time, and a corresponding control command can be generated by operating a virtual button displayed on the display terminal and sent to the control mechanism 160.
In some embodiments, the control mechanism 160 is electrically connected to the display terminal 170 through a wired or wireless connection; furthermore, the wired connection mode is a cable connection mode, and the wireless connection mode is a 5G connection mode.
In some embodiments, the visualization system is applied to an interventional robot, the operation end of the visualization system is applied to the master end of the interventional robot, the infusion mechanism 110 and the detection mechanism of the visualization system are installed in the slave end of the interventional robot, and the operator can remotely send operation instructions from the master end, receive the operation instructions by the control mechanism 160 in the visualization system on the slave end, and control the infusion mechanism 110 and the detection mechanism to perform corresponding actions.
Referring to fig. 8, the present embodiment provides an imaging method including the steps performed by the control mechanism of:
s201, receiving a pumpback confirmation instruction.
In particular, the above-described withdrawal confirmation instructions may be automatically generated upon intravascular delivery of the catheter; illustratively, before delivering the catheter intravascularly, the operator sets a withdrawal catheter movement stroke and/or a withdrawal catheter movement time, wherein the withdrawal catheter movement stroke is characterized in that the withdrawal confirmation is performed after the catheter moves a preset distance every time the catheter is delivered, for example, a withdrawal confirmation command is generated after the catheter moves a preset distance of 2 centimeters (cm) every time the catheter is delivered; the above-mentioned withdrawal catheter movement time is characterized in that the withdrawal confirmation is performed after the catheter moves for a preset time every time of delivery, for example, a withdrawal confirmation instruction is generated after the catheter moves for a preset distance of 1 second (S) every time of delivery. And when the catheter is delivered, if the catheter movement stroke meets the drawing-back catheter movement stroke, or the catheter movement time meets the drawing-back catheter movement time, generating the drawing-back confirmation command.
In addition, the above-mentioned drawing confirmation command may also be generated by an operator operating (e.g. clicking a drawing confirmation button in the operating terminal) in the operating terminal (e.g. a PC, a tablet PC, etc.).
Therefore, the generation time of the pumpback confirmation instruction can be set by the operator according to different use scenes, the applicability is wide, the operator can remotely control and execute the operation, and the operator is prevented from being radiated by the operation equipment.
S202, controlling a power source to drive a push rod of the infusion mechanism to move along the pumping-back direction according to the pumping-back confirmation instruction, and acquiring an actual resistance value when the push rod of the infusion mechanism moves along the pumping-back direction and an actual gas flow of an infusion end of the infusion mechanism.
Specifically, after a pumpback confirmation instruction is received, the control mechanism controls the push rod of the power source to move along the pumpback direction according to the pumpback confirmation instruction, at the moment, the actual resistance value of the push rod of the infusion mechanism is collected in real time through the pressure sensor and is transmitted to the control mechanism in a signal mode, meanwhile, the actual gas flow of the infusion end of the cylinder in the infusion mechanism is collected in real time through the bubble sensor, and is transmitted to the control mechanism in a signal mode.
S203, determining whether the catheter is in a safe state according to a first comparison result of the actual resistance value and a preset resistance value, and determining whether bubbles exist in the infusion mechanism according to a second comparison result of the actual gas flow and the preset actual gas flow.
Specifically, predetermine the resistance value and predetermine actual gas flow and can obtain according to the experiment in advance, through the actual resistance value that will acquire with predetermineeing the mode that resistance value compares and actual gas flow compares with predetermineeing actual gas flow, judge whether satisfy the condition of safe infusion to guarantee the security of infusion.
S204, if the catheter is in a safe state and no air bubble exists in the infusion mechanism, carrying out infusion operation.
In particular, the above-mentioned safe state is characterized in that the distal end of the catheter is kept at a safe distance from the inner wall of the blood vessel; when the catheter is in a safe state and no bubble exists in the infusion mechanism, the catheter is judged to be in a safe infusion condition, infusion operation can be executed, and contrast medium is injected; and when the catheter is not in a safe state and/or air bubbles exist in the infusion mechanism, judging that the condition of non-safe infusion exists, and not executing the infusion operation.
In this application, when confirming according to the pumpback when the push rod of instruction drive infusion mechanism moves along the pumpback direction, respectively according to whether the pipe is in safe state and the second comparison result of actual gas flow and predetermine actual gas flow is confirmed whether the bubble has in the infusion mechanism to confirm whether satisfy the condition of safe infusion, so for the mode of judging according to the experience through operating personnel among the prior art, effectively promote whether the pipe is in safe state and the infusion mechanism in have the judgement accuracy of bubble, and do not have the bubble in the pipe is in safe state and infusion mechanism, carry out the infusion operation, realize the automation of operation flow, effectively promote operation efficiency and security, avoid operating personnel to receive the equipment radiation.
In some alternative embodiments, in step S203, the step of determining whether the catheter is in the safe state according to the first comparison result of the actual resistance value and the preset resistance value includes:
if the first comparison result is that the actual resistance value meets a preset resistance value, determining that the catheter is not in a safe state, controlling the power source to drive a push rod of the infusion mechanism to move along a pushing direction, and sending alarm information, wherein the pushing direction is opposite to a withdrawing direction;
and if the first comparison result is that the actual resistance value does not meet the preset resistance value, acquiring the actual displacement value of the push rod of the infusion mechanism, and controlling the power source to drive the push rod of the infusion mechanism to execute corresponding actions according to a third comparison result of the actual displacement value and the preset displacement value.
Specifically, when the far end of the catheter is not kept at a safe distance from the inner wall of the pipeline, if the control mechanism controls the power source to drive the push rod of the infusion mechanism to move along the withdrawing direction, the inner wall of the blood vessel may be adsorbed on the far end of the catheter, so that the phenomenon of large withdrawing resistance of the push rod of the infusion mechanism is caused; based on this, a preset resistance value is set according to the safe distance between the far end of the catheter and the inner wall of the pipeline, so as to ensure the safe delivery of the catheter.
If the first comparison result is that the actual resistance value meets the preset resistance value, it is determined that the catheter is not in a safe state, that is, the far end of the catheter and the inner wall of the pipeline do not keep a safe distance, at the moment, the control mechanism controls the power source to drive the push rod of the infusion mechanism to move along the injection direction, so that the situation that the inner wall of the pipeline is adsorbed on the far end of the catheter due to the fact that the push rod continues to move along the withdrawal direction is avoided, pipeline damage is caused, alarm information (such as short message reminding, signal lamp reminding, voice reminding and the like) is sent, so that an operator is informed of adjusting the position of the catheter, and after the adjustment of the state of the catheter is completed, the operator resends a withdrawal confirmation instruction through an operation end (such as a Personal Computer (PC), a tablet personal computer and the like), and then step S201 is executed again.
And if the first comparison result is that the actual resistance value does not meet the preset resistance value, acquiring the actual displacement value of a push rod of the infusion mechanism through the displacement sensor, and further verifying the position relationship between the distal end of the catheter and the inner wall of the blood vessel according to a third comparison result of the actual displacement value and the preset displacement value, thereby further ensuring the delivery safety of the catheter.
In some optional embodiments, the pumpback confirmation instruction comprises a pumpback displacement value; the step of controlling the power source to drive the push rod of the infusion mechanism to execute corresponding actions according to the third comparison result of the actual displacement value and the preset displacement value comprises the following steps:
if the actual displacement value does not meet the preset displacement value, determining that the current catheter state is not in a safe state, controlling the power source to drive a push rod of the infusion mechanism to move along the injection direction, and sending alarm information;
and if the actual displacement value meets the preset displacement value, determining that the current catheter state is in a safe state, and controlling the power source to drive the push rod of the infusion mechanism to continue to move along the pumping-back direction until the actual displacement value meets the pumping-back displacement value.
Specifically, when the far end of the catheter is closer to the inner wall of the blood vessel, the actual resistance value of the push rod of the infusion mechanism moving along the withdrawing direction is detected by the pressure sensor to be larger, and the actual displacement value of the push rod of the infusion mechanism is smaller; based on this, after the contrast judgment through actual resistance value and preset resistance value, carry out contrast verification according to actual displacement value and preset displacement value again to the accuracy of current radiography of further promotion.
Further, initially, a corresponding relationship between a displacement difference value between an actual displacement value and a preset displacement value and a distance between the far end of the catheter and the inner wall of the blood vessel can be established through a pre-experiment, so that after the displacement difference value is determined, the distance between the far end of the current catheter and the inner wall of the pipeline can be known according to the displacement difference value, and whether the far end of the catheter can be abutted against the inner wall of the pipeline before a pumping confirmation instruction is received next time is confirmed according to a preset pumping catheter movement stroke/pumping catheter movement time, so that an early warning for catheter delivery safety is formed. For example, if the displacement difference is 3 centimeters (cm), it is determined that the distance between the distal end of the catheter and the inner wall of the pipe is 2 centimeters (cm) at this time according to the corresponding relationship between the displacement difference and the distance between the distal end of the catheter and the inner wall of the pipe, if the movement stroke of the withdrawal catheter is less than 2 centimeters (cm), it is characterized that the distal end of the catheter does not collide with the inner wall of the pipe before receiving the next withdrawal confirmation instruction, and if the movement stroke of the withdrawal catheter is greater than 2 centimeters (cm), it is characterized that the distal end of the catheter collides with the inner wall of the pipe before receiving the next withdrawal confirmation instruction, and the position of the catheter needs to be adjusted; if the motion time of the withdrawal catheter is 1S, acquiring a preset delivery speed (set by an operator) of the catheter in unit time, and multiplying the preset delivery speed by the motion time of the withdrawal catheter to obtain a product value, wherein if the product value is less than 2 centimeters (cm), the far end of the characterization catheter does not collide with the inner wall of the pipeline before receiving a next withdrawal confirmation command, and if the product value is greater than 2 centimeters (cm), the far end of the characterization catheter touches the inner wall of the pipeline before receiving the next withdrawal confirmation command, and the position of the catheter needs to be adjusted.
If the actual displacement value does not satisfy the preset displacement value, the method is characterized in that the push rod of the infusion mechanism is large in withdrawal resistance, it is determined that the catheter is not in a safe state, that is, the far end of the catheter and the inner wall of the pipeline do not keep a safe distance, at the moment, the control mechanism controls the power source to drive the push rod of the infusion mechanism to move along the injection direction, so that the situation that the inner wall of the pipeline is adsorbed on the far end of the catheter due to the fact that the push rod continues to move along the withdrawal direction is avoided, pipeline damage is avoided, alarm information (such as short message reminding, signal lamp reminding, voice reminding and the like) is sent to inform an operator of adjusting the position of the catheter, after the position of the catheter is adjusted, the operator resends a withdrawal confirmation instruction through an operation end (such as a PC, a tablet computer and the like), and then the method executes step S201 again.
If the actual displacement value meets the preset displacement value, the situation is characterized in that the push rod withdrawing resistance of the infusion mechanism is small, the catheter is determined to be in a safe state, namely the far end of the catheter keeps a safe distance from the inner wall of the pipeline (cavity), and at the moment, the control mechanism controls the power source to drive the push rod of the infusion mechanism to continue to move along the withdrawing direction until the actual displacement value is equal to the withdrawing displacement value.
In some optional embodiments, in step S203, the step of determining whether bubbles exist in the infusion mechanism according to a second comparison result between the actual gas flow and a preset actual gas flow includes:
if the second comparison result is that the actual gas flow does not meet the preset gas threshold, determining that no bubble exists in the infusion mechanism, and executing infusion operation when the actual displacement value meets the pumping-back displacement value;
and if the second comparison result shows that the actual gas flow meets a preset gas threshold, determining that bubbles exist in the infusion mechanism, controlling the power source to stop driving a push rod of the infusion mechanism to move, and sending alarm information.
Specifically, in the process that a power source drives a push rod of the infusion mechanism to move along the pumping-back direction, the actual gas flow at the infusion head is collected through a bubble sensor arranged on the infusion head, when the actual gas flow is smaller than or equal to a preset gas threshold value, it is determined that no bubble exists in the infusion mechanism, and after the actual displacement value meets the pumping-back displacement value, the infusion operation is executed; when the actual gas flow is larger than the preset gas threshold value, determining that bubbles exist in the infusion mechanism, controlling the power source to stop driving the push rod of the infusion mechanism to move along the pumping-back direction, sending alarm information, and manually exhausting by an operator according to the alarm information.
Further, probably because infusion mechanism's gas content is low, lead to the actual gas flow that bubble sensor detected and obtain to be less than predetermineeing gas flow, based on this, the accessible adds the shake subassembly, and the output of shake subassembly is connected with infusion mechanism, is confirming infusion mechanism does not have the bubble after, the steerable shake subassembly of control mechanism makes infusion mechanism wholly take place the shake to the action of artificial bullet infusion mechanism barrel of simulation makes the gas in the liquid of splendid attire in the barrel rise to the liquid level top of the liquid of splendid attire in the barrel, thereby avoids injecting liquid injection to in the liquid road pipe when injecting.
Preferably, the shaking component can be a rotating motor, and an output end of the rotating motor is connected with the cylinder body to drive the cylinder body to rotate, so that the action of artificially ejecting the cylinder body of the infusion mechanism is simulated.
Further, when the actual gas flow is larger than the preset gas threshold, the whole infusion mechanism of the infusion mechanism can shake through the shaking assembly, if the gas in the cylinder can rise to the uppermost end of the liquid level, the power source is continuously controlled to stop driving the push rod to move along the pumping-back direction, the actual resistance value of the push rod of the infusion mechanism during movement along the pumping-back direction is obtained, and step S203 is executed; and if the gas in the cylinder body cannot rise to the uppermost end of the liquid level, sending alarm information and then informing an operator to process.
In some optional embodiments, step S204, before the step of performing the infusion operation, further includes:
receiving a transfusion instruction;
the step of performing an infusion operation comprises:
if the type of the infusion instruction is a full-automatic infusion instruction, acquiring current injection parameters of the infusion mechanism, determining a target injection speed of a push rod of the infusion mechanism according to the current injection parameters, determining an actual injection speed according to a fourth comparison result of the target injection speed and a preset injection speed, and controlling the power source to drive the push rod of the infusion mechanism to move along a bolus injection direction at the actual injection speed;
if the type of the infusion instruction is a semi-automatic infusion instruction, extracting a set injection speed from the semi-automatic infusion instruction, and controlling the power source to drive the push rod of the infusion mechanism to move at a constant speed along the injection direction at the set injection speed.
Specifically, the automatic infusion instruction and the semi-automatic infusion instruction both carry infusion identifiers, and after the infusion instruction is received, the infusion identifiers are extracted from the infusion instruction, and the type of the infusion instruction is determined according to the infusion identifiers.
In some embodiments, the current injection parameter includes a current injection time period and a current injected flow rate, wherein the current injected flow rate is an injected flow rate in the current injection time period, and the current injected flow rate is accumulated by flow rate values continuously acquired by the flow sensor in the current injection time period. If an operator needs to perform full-automatic infusion, injection parameters are set at an operation end (such as a PC (personal computer), a tablet personal computer and the like), wherein the injection parameters comprise at least one of preset injection liquid quantity, preset injection speed and preset injection duration; after an operator inputs a full-automatic infusion instruction in an operation end, a target injection speed is obtained by dividing the current injected flow by the current injection time, and then a power source is controlled to drive a push rod of an infusion mechanism to execute corresponding actions (see the following text for details) according to a fourth comparison result of the target injection speed and the preset injection speed, so that accurate infusion is realized.
In some embodiments, if the fourth comparison result indicates that the target injection speed meets a preset injection speed, it is characterized that the target injection speed is appropriate, the target injection speed is used as an actual injection speed, and the push rod of the infusion mechanism is controlled to continue to move in the injection direction at the actual injection speed until the current injection time reaches the preset injection time, so as to avoid that the final total infusion amount is too much and the blood vessel is damaged; if the fourth comparison result shows that the target injection speed does not meet the preset injection speed, the target injection speed is adjusted according to the difference value between the target injection speed and the preset injection speed to obtain the actual injection speed, the power source is controlled to drive the push rod of the infusion mechanism to move along the injection direction at the actual injection speed, the actual injection speed is used as the target injection speed, and whether the target injection speed meets the preset injection speed is judged again, so that the accuracy of infusion is guaranteed.
In some embodiments, if the type of the infusion instruction is a semi-automatic infusion instruction, an operator sets a set injection speed at an operation end (e.g., a PC, a tablet PC, or the like), and when the operator clicks a button (e.g., a mechanical button or a virtual button) on the operation end, the control mechanism controls the power source to drive the push rod of the infusion mechanism to move at a constant speed along the bolus injection direction at the set injection speed according to the set injection speed, so as to achieve constant-speed infusion.
The present application further provides another embodiment, which is to provide a computer storage medium storing computer readable instructions executable by at least one control mechanism to cause the at least one control mechanism to perform the steps of the visualization method of the present application as described above.
In this application, when confirming according to the pumpback when the push rod of instruction drive infusion mechanism moves along the pumpback direction, respectively according to whether the pipe is in safe state and the second comparison result of actual gas flow and predetermine actual gas flow is confirmed whether the bubble has in the infusion mechanism to confirm whether satisfy the condition of safe infusion, so for the mode of judging according to the experience through operating personnel among the prior art, effectively promote the safe state of pipe and the judgement accuracy whether have the bubble in the infusion mechanism, and do not have the bubble in the pipe is in safe state and infusion mechanism, carry out the infusion operation, realize the automation of operation flow, effectively promote operation efficiency and security, avoid operating personnel to receive the equipment radiation.
It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications can be made to the embodiments described in the foregoing detailed description, or equivalents can be substituted for some of the features described therein. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.
Claims (10)
1. An angiography system is characterized by comprising a transfusion mechanism, a detection mechanism and a control mechanism;
the infusion mechanism comprises a cylinder, a push rod, a power source and a liquid path component; the cylinder body is of a hollow structure; one end of the push rod is slidably arranged in the barrel; the power source is electrically connected with the control mechanism, and the output end of the power source is connected with the other end of the push rod so as to drive the push rod to slide in the barrel along the withdrawing direction or the injecting direction; one end of the liquid path component is communicated with the transfusion end of the cylinder body, and the other end of the liquid path component is communicated with the guide pipe;
the detection mechanism is electrically connected with the control mechanism and is used for detecting the actual resistance value when the push rod moves along the pumping-back direction and detecting the actual gas flow at the infusion end of the cylinder body;
the control mechanism is used for receiving a pumpback confirmation instruction; controlling a power source to drive a push rod of the infusion mechanism to move along a drawing-back direction according to the drawing-back confirmation instruction, and acquiring an actual resistance value of the push rod of the infusion mechanism when the push rod moves along the drawing-back direction and an actual gas flow of an infusion end of the infusion mechanism; determining whether the catheter is in a safe state according to a first comparison result of the actual resistance value and a preset resistance value, and determining whether bubbles exist in the infusion mechanism according to a second comparison result of the actual gas flow and the preset actual gas flow; and if the catheter is in a safe state and no air bubble exists in the infusion mechanism, carrying out infusion operation.
2. The visualization system of claim 1,
the power source comprises a threaded sleeve, a screw rod and a driving motor electrically connected with the control mechanism, the threaded sleeve is in threaded connection with the screw rod, the output end of the driving motor is in transmission connection with the screw rod, and the other end of the push rod is fixedly connected with the threaded sleeve; or the like, or a combination thereof,
the power source is a pneumatic driving piece, and the output end of the pneumatic driving piece is in transmission connection with the other end of the push rod; or the like, or, alternatively,
the power source is a hydraulic driving piece, and the output end of the hydraulic driving piece is in transmission connection with the other end of the push rod; or the like, or, alternatively,
the power source is a peristaltic pump, and two ends of the peristaltic pump are respectively communicated with one end of the liquid path assembly and the infusion end of the barrel.
3. The visualization system of claim 1, wherein the detection mechanism comprises a pressure sensor and a bubble sensor, the pressure sensor is disposed on the push rod, and the bubble sensor is disposed on the administration end of the barrel.
4. A method of imaging comprising the steps of:
receiving a pumpback confirmation instruction;
controlling a power source to drive a push rod of the infusion mechanism to move along a drawing-back direction according to the drawing-back confirmation instruction, and acquiring an actual resistance value of the push rod of the infusion mechanism when the push rod moves along the drawing-back direction and an actual gas flow of an infusion end of the infusion mechanism;
determining whether the catheter is in a safe state according to a first comparison result of the actual resistance value and a preset resistance value, and determining whether bubbles exist in the infusion mechanism according to a second comparison result of the actual gas flow and the preset actual gas flow;
and if the catheter is in a safe state and no air bubble exists in the infusion mechanism, carrying out infusion operation.
5. The visualization method of claim 4, wherein said step of determining whether the catheter is in a safe state based on a first comparison of said actual resistance value to a preset resistance value comprises:
if the first comparison result is that the actual resistance value meets a preset resistance value, determining that the catheter is not in a safe state, controlling the power source to drive a push rod of the infusion mechanism to move along a pushing direction, and sending alarm information, wherein the pushing direction is opposite to the withdrawing direction;
and if the first comparison result is that the actual resistance value does not meet the preset resistance value, acquiring the actual displacement value of the push rod of the infusion mechanism, and controlling the power source to drive the push rod of the infusion mechanism to execute corresponding actions according to a third comparison result of the actual displacement value and the preset displacement value.
6. The visualization method of claim 5, wherein the pumpback confirmation instruction comprises a pumpback displacement value; the step of controlling the power source to drive the push rod of the infusion mechanism to execute the corresponding action according to the third comparison result of the actual displacement value and the preset displacement value comprises the following steps:
if the actual displacement value does not meet the preset displacement value, determining that the catheter is not in a safe state, controlling the power source to drive a push rod of the infusion mechanism to move along the injection direction, and sending alarm information;
and if the actual displacement value meets the preset displacement value, determining that the catheter is in a safe state, and controlling the power source to drive the push rod of the infusion mechanism to continue to move along the pumping-back direction until the actual displacement value meets the pumping-back displacement value.
7. The visualization method as recited in claim 6, wherein the step of determining whether bubbles exist in the infusion mechanism according to the second comparison result between the actual gas flow and the preset actual gas flow comprises:
if the second comparison result is that the actual gas flow does not meet the preset gas threshold, determining that no bubble exists in the infusion mechanism, and executing infusion operation when the actual displacement value meets the pumping-back displacement value;
and if the second comparison result shows that the actual gas flow meets a preset gas threshold, determining that bubbles exist in the infusion mechanism, controlling the power source to stop driving a push rod of the infusion mechanism to move along the pumping-back direction, and sending alarm information.
8. The visualization method according to any one of claims 4 to 7, further comprising, prior to the step of performing an infusion operation:
receiving an infusion instruction;
the step of performing an infusion operation comprises:
if the type of the infusion instruction is a full-automatic infusion instruction, acquiring current injection parameters of the infusion mechanism, determining a target injection speed of a push rod of the infusion mechanism according to the current injection parameters, determining an actual injection speed according to a fourth comparison result of the target injection speed and a preset injection speed, and controlling the power source to drive the push rod of the infusion mechanism to move along a bolus injection direction at the actual injection speed;
if the type of the infusion instruction is a semi-automatic infusion instruction, extracting a set injection speed from the semi-automatic infusion instruction, and controlling the power source to drive the push rod of the infusion mechanism to move at a constant speed along the injection direction at the set injection speed.
9. The visualization method of claim 8, wherein the current injection parameter comprises a current injection time duration; the step of determining the actual injection speed according to the fourth comparison result of the target injection speed and the preset injection speed, and controlling the power source to drive the push rod of the infusion mechanism to move along the injection direction at the actual injection speed comprises the following steps:
if the fourth comparison result is that the target injection speed meets the preset injection speed, taking the target injection speed as the actual injection speed, and controlling a push rod of the infusion mechanism to continuously move along the injection direction at the actual injection speed until the current injection time reaches the preset injection time;
if the fourth comparison result shows that the target injection speed does not meet the preset injection speed, adjusting the target injection speed according to the difference value between the target injection speed and the preset injection speed to obtain an actual injection speed, controlling the power source to drive a push rod of the infusion mechanism to move along the injection direction at the actual injection speed, taking the actual injection speed as the target injection speed, and judging whether the target injection speed meets the preset injection speed again.
10. A storage medium, characterized in that it has stored thereon computer-readable instructions which, when executed by a control mechanism, carry out the steps of the visualization method according to any one of claims 4 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211027159.3A CN115382046A (en) | 2022-08-25 | 2022-08-25 | Radiography system, method and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211027159.3A CN115382046A (en) | 2022-08-25 | 2022-08-25 | Radiography system, method and storage medium |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211027159.3A Pending CN115382046A (en) | 2022-08-25 | 2022-08-25 | Radiography system, method and storage medium |
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Citations (8)
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|---|---|---|---|---|
| JPH10239323A (en) * | 1997-02-24 | 1998-09-11 | Hitachi Ltd | Automatic dispenser |
| JP2000300667A (en) * | 1999-04-20 | 2000-10-31 | Fuji Electric Co Ltd | Transfusion pump device |
| DE202009016917U1 (en) * | 2009-12-04 | 2011-04-21 | Ls Medcap Gmbh | Gas exchange system |
| US20140052096A1 (en) * | 2012-08-15 | 2014-02-20 | Becton, Dickinson And Company | Pump engine with metering system for dispensing liquid medication |
| CN104888305A (en) * | 2015-05-27 | 2015-09-09 | 深圳康罗技术有限公司 | Infusion system and infusion method |
| CN106730170A (en) * | 2016-12-29 | 2017-05-31 | 广州华玺医疗科技有限公司 | A kind of syringe pump pumpback method and device |
| WO2019175836A1 (en) * | 2018-03-14 | 2019-09-19 | Onefusion Ag | Infusion systems and methods |
| KR20210148728A (en) * | 2020-06-01 | 2021-12-08 | 한국표준과학연구원 | Automatic injection system capable of realtime monitoring |
-
2022
- 2022-08-25 CN CN202211027159.3A patent/CN115382046A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10239323A (en) * | 1997-02-24 | 1998-09-11 | Hitachi Ltd | Automatic dispenser |
| JP2000300667A (en) * | 1999-04-20 | 2000-10-31 | Fuji Electric Co Ltd | Transfusion pump device |
| DE202009016917U1 (en) * | 2009-12-04 | 2011-04-21 | Ls Medcap Gmbh | Gas exchange system |
| US20140052096A1 (en) * | 2012-08-15 | 2014-02-20 | Becton, Dickinson And Company | Pump engine with metering system for dispensing liquid medication |
| CN104888305A (en) * | 2015-05-27 | 2015-09-09 | 深圳康罗技术有限公司 | Infusion system and infusion method |
| CN106730170A (en) * | 2016-12-29 | 2017-05-31 | 广州华玺医疗科技有限公司 | A kind of syringe pump pumpback method and device |
| WO2019175836A1 (en) * | 2018-03-14 | 2019-09-19 | Onefusion Ag | Infusion systems and methods |
| KR20210148728A (en) * | 2020-06-01 | 2021-12-08 | 한국표준과학연구원 | Automatic injection system capable of realtime monitoring |
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