CN-122004773-A - OCT automatic injection method

CN122004773ACN 122004773 ACN122004773 ACN 122004773ACN-122004773-A

Abstract

The invention relates to the technical field of OCT imaging and discloses an OCT automatic pushing injection method which is applied to an OCT system and a Rui system of an OCT automatic pushing injection system, and comprises the steps that an injection pump control module of the OCT system generates an injection control instruction and determines an operation parameter, or the Rui system generates the injection control instruction and receives the operation parameter of the OCT system; the motor transmission module of the Rui flushing system is connected with the injection pump control module, generates motor thrust based on injection control instructions and operation parameters, applies the motor thrust to the injector through the injection module, injects medium in the injector to the blood vessel, and synchronously controls the imaging device to perform OCT scanning on the blood vessel in the injection process by the imaging control module of the OCT system so as to obtain OCT images. The invention can realize the cooperative interaction control between the OCT system and the Rui system, synchronously complete OCT scanning in the process of pushing, and ensure accurate and controllable pushing speed and dosage.

Inventors

ZHU RUI
CAO YIHUI
LIU CHAO
HUI FANGFANG

Assignees

深圳市中科微光医疗器械技术有限公司

Dates

Publication Date: 20260512
Application Date: 20260302

Claims (10)

1. An OCT automatic pushing injection method is characterized by being applied to an OCT system of the OCT automatic pushing injection system, the OCT system further comprises a Rui-Chong system connected with the OCT system, the OCT system comprises an imaging control module and a syringe pump control module, the mechanical structure of the Rui-Chong system comprises a motor transmission module, a pushing injection module and a syringe, the motor transmission module is connected with the syringe pump control module, and the method comprises the following steps: The injection pump control module generates an injection control instruction and determines an operation parameter; the injection pump control module transmits the injection control instruction and the operation parameter to the Rui system, the motor transmission module generates motor thrust based on the injection control instruction and the operation parameter, the motor thrust is applied to the injector through the push injection module, and medium in the injector is pushed into a blood vessel; the imaging control module synchronously controls the imaging device to perform OCT scanning on the blood vessel in the injection process so as to obtain an OCT image.
2. The method of claim 1, wherein the OCT system is configured with an operation interface comprising a catheter connection sub-interface and a real-time scanning sub-interface integrated with an image presentation area corresponding to the imaging control module, and a parameter setting area and an operation control area corresponding to the syringe pump control module; The syringe pump control module determines operating parameters including: Entering the catheter connection sub-interface after the OCT system is started, detecting the connection state with the Rui system, and displaying the connection state on the catheter connection sub-interface and the real-time scanning sub-interface; and after the connection is successful, the OCT system enters the real-time scanning sub-interface, and when the stop scanning button of the real-time scanning sub-interface is detected to be selected and the using Rui button is selected, the operating parameters set in the parameter setting area are obtained, and after the confirmation setting button of the parameter setting area is detected to be selected, the operating parameters are sent to the motor transmission module, wherein the operating parameters at least comprise smoking dosage, pull-back push injection maximum speed, pull-back push injection minimum speed, limiting pressure and manual push injection speed.
3. The method of claim 2, wherein the operational control area is provided with a smoke test button and a pullback start button; The injection pump control module generates an injection control instruction comprising: Generating a smoking bolus instruction or a pull-back bolus instruction after detecting that the smoking test button or the pull-back start button is selected, sending the smoking bolus instruction or the pull-back bolus instruction to the motor transmission module, and performing smoking bolus by the motor transmission module according to the smoking dosage, the pull-back bolus maximum speed and the pull-back bolus minimum speed or performing pull-back bolus according to the pull-back bolus maximum speed and the pull-back bolus minimum speed based on the smoking bolus instruction; The imaging control module synchronously controls the imaging device to perform OCT scanning on the blood vessel, acquires an OCT image, and performs smoke detection or pullback detection based on the OCT image; After the smoke detection is successful or the pullback is finished, the OCT system generates a push-injection stopping instruction and sends the push-injection stopping instruction to the motor transmission module, and the motor transmission module stops push injection.
4. The method of claim 2, wherein the operation control area is further provided with a reset button, the method further comprising: And after detecting that the reset button is selected, generating a suction instruction, and sending the suction instruction to the motor transmission module, so that the motor transmission module sucks the medium into the syringe based on a preset speed, and stopping sucking until reaching a preset capacity.
5. The OCT automatic pushing injection method is characterized by being applied to an OCT automatic pushing injection system, the OCT automatic pushing injection system further comprises an OCT system connected with the Rui injection system, the OCT system comprises an imaging control module and a syringe pump control module, the mechanical structure of the Rui injection system comprises a motor transmission module, a pushing injection module and a syringe, the motor transmission module is connected with the syringe pump control module, and the method comprises the following steps: The motor transmission module acquires operation parameters; The motor transmission module generates an injection control instruction, generates motor thrust based on the injection control instruction and the operation parameter, applies the motor thrust to the injector through the injection module, and injects medium in the injector to a blood vessel; The motor transmission module synchronously generates an imaging control instruction, and transmits the imaging control instruction to the imaging control module through the injection pump control module, so that the imaging control module synchronously controls the imaging device to perform OCT scanning on the blood vessel according to the imaging control instruction in the injection process, and an OCT image is obtained.
6. The method of claim 5, wherein the operating parameters include at least a smoke dose, a maximum pull back bolus speed, a minimum pull back bolus speed, a defined pressure, and a manual bolus speed, and wherein the mechanical structure of the Rui system further comprises a protective housing having disposed thereon a smoke bolus button, a pull back bolus button, a connection status indicator for showing a connection status of the OCT system to the Rui system, and a Rui operation status indicator for showing an operation status of the Rui system; The motor drive module generates an injection control command, generates a motor thrust based on the injection control command and the operating parameter, applies the motor thrust to the injector through the injection module, injects medium in the injector into a blood vessel, and comprises: When the OCT system is successfully connected with the Rui system, the Rui system generates a smoking push instruction or a pull-back push instruction after detecting that the smoking push button or the pull-back push button is selected, and the motor transmission module performs smoking push according to the smoking dosage, the pull-back push maximum speed and the pull-back push minimum speed or performs pull-back push according to the pull-back push maximum speed and the pull-back push minimum speed based on the smoking push instruction; The Rui flushing system sends the imaging control instruction to the imaging control module so that the imaging control module synchronously controls the imaging device to perform OCT scanning on the blood vessel, an OCT image is obtained, and smoke detection or pullback detection is performed based on the OCT image; After the imaging control module determines that smoke detection is successful or pullback is finished based on the OCT image, the motor transmission module obtains a bolus stopping instruction of the OCT system and stops bolus according to the bolus stopping instruction.
7. The method of claim 6, wherein the performing a pullback bolus according to the pullback bolus maximum speed and the pullback bolus minimum speed comprises: Acquiring a first pullback bolus speed determined by the OCT system based on the OCT image between the pullback bolus maximum speed and the pullback bolus minimum speed; the motor transmission module generates corresponding motor thrust according to the first pull-back injection speed so as to enable the medium to be injected into the blood vessel according to the first pull-back injection speed; when the imaging control module synchronously controls the imaging device to perform OCT scanning on the blood vessel, the OCT image is obtained, and after the detection flushing effect of the OCT image reaches the preset requirement, a pullback instruction generated by the injection pump control module is obtained; After receiving the pullback instruction, obtaining a second pullback bolus speed determined by the OCT system based on the OCT image between the pullback bolus maximum speed and the pullback bolus minimum speed; And the motor transmission module generates corresponding motor thrust according to the second pull-back injection speed so as to enable the medium to be injected into the blood vessel according to the second pull-back injection speed.
8. The method of claim 6, wherein the protective housing further comprises a manual bolus button, a manual aspiration button, and a scram button, the method further comprising: after detecting that the manual injection button is selected by long-time pressing, the motor transmission module performs manual injection based on the manual injection speed, and stops manual injection after detecting that the long-time pressing is stopped; After detecting that the manual pumping button is selected by long-time pressing, the motor transmission module pumps the medium into the injector based on a preset speed, and stops pumping until reaching a preset capacity, or stops pumping after detecting that the long-time pressing is stopped; and stopping the injection action after detecting that the scram button is selected.
9. The method of any one of claims 6 or 8, wherein the guard housing further comprises a speed dial, the method further comprising: and after the speed deflector rod is detected to be operated, acquiring the current injection speed of the motor transmission module, and adjusting the current injection speed based on an operation signal of the speed deflector rod.
10. The method of claim 5, wherein the mechanical structure of the Rui punch system further comprises a syringe securing module and a lock status indicator light; The injector fixing module is used for fixing the injector so that the injection end of the injector is higher than the injection end of the injector, the injection end is connected with the injection module, and the injection end is connected with a catheter of the OCT system; the locking state indicator lamp is used for showing the locking state of the syringe fixing module to the syringe.

Description

OCT automatic injection method Technical Field The invention relates to the technical field of OCT imaging, in particular to an OCT automatic injection method. Background In the field of coronary intervention diagnosis and treatment, optical coherence tomography (Optical Coherence Tomography, OCT) technology has become a key tool for assessing vascular lesions and guiding stent placement by virtue of high-resolution imaging capability. The core requirement of OCT imaging is to temporarily remove blood in blood vessels by injecting contrast agent so as to obtain clear blood vessel wall and lumen microstructure images, so that the accuracy of contrast agent injection and the synergy with OCT scanning directly determine the imaging quality and the accuracy of subsequent diagnosis. The traditional clinical operation needs two medical staff to cooperate, one person controls the OCT catheter, the other person manually pushes and injects contrast agent, the action synchronism of the two is highly dependent on experience, the condition that the image acquisition time is not matched with the filling of the contrast agent easily occurs, the diagnosis is influenced by about 40% of OCT data due to poor flushing effect, and the labor cost and the operation duration are increased due to double operation. Most of the existing electric injection pumps are independent operation devices, no stable signal interaction and cooperative control mechanism exists between the electric injection pumps and the OCT system, operators need to take both operations into account through distraction, the burden of an operation team is increased, and the fixed injection parameters lack of clinical suitability, so that insufficient blood vessels are easily caused due to insufficient pressure, or the risk of extravasation of contrast agent is easily caused due to over-high pressure. Disclosure of Invention The invention provides an OCT automatic injection method, which aims to solve the problem that an injection pump and an OCT system cannot be controlled cooperatively. In a first aspect, the invention provides an OCT automatic injection method, which is applied to an OCT system of the OCT automatic injection system, the OCT automatic injection system further comprises a Rui system connected with the OCT system, the OCT system comprises an imaging control module and an injection pump control module, the mechanical structure of the Rui system comprises a motor transmission module, an injection module and an injector, the motor transmission module is connected with the injection pump control module, the injection pump control module generates an injection control instruction and determines an operation parameter, the injection pump control module transmits the injection control instruction and the operation parameter to the Rui system, the motor transmission module generates a motor thrust based on the injection control instruction and the operation parameter, the motor thrust is applied to the injector through the injection module, the injector is used for injecting medium into a blood vessel, and the imaging control module synchronously controls an imaging device to perform OCT scanning on the blood vessel in the injection process so as to obtain an OCT image. The OCT automatic injection method provided by the invention can directly realize accurate and real-time transmission from an injection control instruction and an operation parameter to the Rui system based on the direct connection of the OCT system and the Rui system, greatly improve the cooperative consistency of injection action and OCT scanning, synchronously complete OCT scanning in the injection process by an imaging control module, acquire image data of intravascular medium filling state and blood exclusion condition in real time, provide a direct basis for immediate judgment of injection effect, avoid image invalidation or medium waste caused by asynchronous injection and scanning, ensure accurate and controllable injection speed and dosage by the special mechanical structure of the Rui system and the depth adaptation of the OCT system control module, reduce the problems of operation error of manual injection and insufficient suitability of a traditional general injection pump, reduce the waste of mediums such as contrast agent, improve the safety and reliability of clinical operation, reduce the dependence on experience of operators, and improve the operation convenience and flow efficiency. In some alternative embodiments, the OCT system is configured with an operation interface, the operation interface comprises a catheter connection sub-interface and a real-time scanning sub-interface, the real-time scanning sub-interface is integrated with an image display area corresponding to the imaging control module and a parameter setting area and an operation control area corresponding to the injection pump control module, the injection pump control module determines operation paramete