A method, device, equipment, system and medium for external fenestration of a stent

Abstract

This application relates to the field of stent fenestration, and particularly to a method, device, equipment, system and medium for extracorporeal fenestration of a stent. The method includes: obtaining a guide plate diagram generated based on the aortic image data of a patient, which can accurately indicate the positions of branch openings; dividing regions according to the branch openings in the guide plate diagram; by projecting the first region of the guide plate diagram onto the aortic stent, the positions of the reference artery openings and the proximal end markings can be accurately located, so as to facilitate the stent fenestration operation according to the projected image. Since the stent is not planar, but a cylindrical or conical shape corresponding to the aortic shape selected based on the aortic image data of the patient, a single projection may not accurately project all branch openings. Then, by adjusting the projection angle, drilling of all regions on the aortic stent is gradually completed, improving the accuracy and efficiency of extracorporeal fenestration of the stent.

Description

Technical Field

[0001] The present application relates to the field of stent fenestration, and particularly to a method, device, equipment, system and medium for stent extracorporeal fenestration. Background Art

[0002] With the continuous progress of medical technology, vascular intervention surgery has become an important means for treating cardiovascular diseases.

[0003] In vascular intervention surgery, based on the patient's imaging data, a guide map is generated, and then the guide map is printed on non-woven fabric by a printing device. The doctor punches holes on the non-woven fabric according to the positions marked on the guide map, and finally uses the non-woven fabric with the punched holes as a template to attach to the stent for precise punching of the stent. However, this method requires multiple steps such as printing the guide map, attaching the non-woven fabric, punching the non-woven fabric, and then punching the stent, which increases the time and complexity of surgical preparation. Moreover, the process of printing and attaching the non-woven fabric may introduce errors, affecting the accuracy and efficiency of punching. At the same time, using non-woven fabric as an intermediate medium increases the material cost and also increases the operation difficulty.

[0004] Therefore, how to solve the above problems has become an urgent matter for those skilled in the art. Summary of the Invention

[0005] The purpose of the present application is to provide a method, device, equipment, system and medium for stent extracorporeal fenestration, which can reduce costs, is simple to operate, and improves the accuracy and efficiency of stent extracorporeal fenestration.

[0006] In a first aspect, a method for stent extracorporeal fenestration is provided, including:

[0007] Obtaining a guide map, where the guide map is an image generated based on the patient's aortic imaging data for indicating branch openings;

[0008] Dividing regions according to the branch openings in the guide map to obtain a plurality of regions, where each region includes complete branch openings;

[0009] Projecting the guide map so that a first region among the plurality of regions of the guide map can be projected onto the aortic stent, and the first region includes a reference artery opening and a proximal end identifier;

[0010] Adjusting the projection angle and performing guide map projection so that the remaining second regions among the plurality of regions of the guide map can be projected onto the aortic stent until the branch openings corresponding to each of the plurality of regions are punched on the aortic stent.

[0011] In a preferred example, the present application can be further configured as: projecting the guide plate diagram such that a first region among the multiple regions of the guide plate diagram can be projected onto the aortic stent, including:

[0012] Determine the projection starting position on the aortic stent;

[0013] Based on the projection starting position, project the guide plate diagram such that a first region among the multiple regions of the guide plate diagram can be projected onto the aortic stent.

[0014] In a preferred example, the present application can be further configured as: the projection angle includes the projection angle of the projection device or the rotation angle of the aortic stent.

[0015] In a preferred example, the present application can be further configured as: after projecting the guide plate diagram such that a first region among the multiple regions of the guide plate diagram can be projected onto the aortic stent, further including:

[0016] Obtain a first projection image of the aortic stent collected by an image acquisition device of the projection device;

[0017] Identify a first position of the reference arterial opening and a second position of the proximal end identifier in the first region of the first projection image;

[0018] Determine whether a first relative position and a first standard relative position match, where the first relative position is the relative position between the first position and the second position;

[0019] If they do not match, adjust the projection parameters and project the guide plate diagram according to the projection parameters such that the first relative position and the first standard relative position match.

[0020] In a preferred example, the present application can be further configured as: after adjusting the projection angle and projecting the guide plate diagram such that the remaining second region among the multiple regions of the guide plate diagram can be projected onto the aortic stent, further including:

[0021] Obtain a second projection image of the aortic stent collected by an image acquisition device of the projection device;

[0022] Identify a third position of the branch opening in the second region of the second projection image;

[0023] Determine whether a second relative position and a second standard relative position match, where the second relative position is the relative position between the third position and the target position;

[0024] If they do not match, adjust the projection parameters and project the guide plate diagram according to the projection parameters such that the second relative position and the second standard relative position match.

[0025] In a preferred example, the present application can be further configured to: divide regions according to the branch openings in the guide map to obtain a plurality of regions, including:

[0026] According to the size information of the branch openings and the size information of the aortic stent, divide regions according to the branch openings in the guide map to obtain a plurality of regions.

[0027] In a second aspect, a stent extracorporeal fenestration device is provided, including:

[0028] An acquisition module, configured to acquire a guide map, where the guide map is an image for indicating branch openings generated according to the aortic imaging data of a patient;

[0029] A region division module, configured to divide regions according to the branch openings in the guide map to obtain a plurality of regions, where each region includes a complete branch opening;

[0030] A projection module, configured to project the guide map so that a first region among the plurality of regions of the guide map can be projected onto the aortic stent, and the first region includes a reference artery opening and a proximal end identifier;

[0031] An angle adjustment module, configured to adjust the projection angle and perform guide map projection so that the remaining second regions among the plurality of regions of the guide map can be projected onto the aortic stent until the branch openings corresponding to each of the plurality of regions are punched in the aortic stent.

[0032] In a third aspect, a projection device is provided, including:

[0033] A projection lens;

[0034] A light source;

[0035] One or more processors;

[0036] A memory;

[0037] One or more applications, where one or more applications are stored in the memory and configured to be executed by one or more processors, and one or more programs are configured to: perform operations corresponding to the stent extracorporeal fenestration method shown in any possible implementation manner in the first aspect.

[0038] In a fourth aspect, a computer-readable storage medium is provided, where the storage medium stores at least one instruction, at least one segment of program, a code set or an instruction set, and at least one instruction, at least one segment of program, the code set or the instruction set is loaded and executed by a processor to perform the steps of the stent extracorporeal fenestration method shown in any possible implementation manner in the first aspect.

[0039] In a fifth aspect, a computer program product is provided, including a computer program which, when executed by a processor, implements the operations corresponding to the method for external fenestration of a stent as shown in any possible implementation manner of the first aspect.

[0040] In a sixth aspect, a system for external fenestration of a stent is provided, including:

[0041] The projection device as described in the third aspect;

[0042] A surgical planning software formulating device for generating a guide map indicating branch openings based on the aortic image data of a patient.

[0043] In summary, the method provided in this application includes the following beneficial technical effects:

[0044] In this solution, a guide map generated based on the aortic image data of a patient is obtained, and this guide map can accurately indicate the positions of branch openings; the areas are divided according to the branch openings in the guide map; by projecting the first area of the guide map onto the aortic stent, the positions of the reference artery openings and the proximal end markings can be accurately located, facilitating the stent fenestration operation based on the projected image. Since the stent is not planar but cylindrical or conical-like corresponding to the shape of the patient's aorta selected based on the aortic image data, therefore, a single projection may not accurately project all the branch openings. By adjusting the projection angle, the punching of all areas on the aortic stent is gradually completed, improving the accuracy and efficiency of external fenestration of the stent.

[0045] In addition, this application also provides a device, equipment, system and medium for external fenestration of a stent, all of which have the above beneficial technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0047] Figure 1 It is a schematic flowchart of a method for external fenestration of a stent provided by an embodiment of this application;

[0048] Figure 2 It is a schematic diagram of a guide map provided by an embodiment of this application;

[0049] Figure 3 It is a schematic diagram of a projection starting position provided by an embodiment of this application;

[0050] Figure 4 A schematic structural diagram of an extracorporeal fenestration device for a stent provided by an embodiment of the present application;

[0051] Figure 5 A schematic structural diagram of a projection device provided by an embodiment of the present application. Specific embodiments

[0052] This specific embodiment is only an interpretation of the present application and does not limit the present application. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the present application, it is protected by the patent law.

[0053] It should be noted that in the alternative embodiments of the present application, for relevant data such as object information, when the embodiments in the present application are applied to specific products or technologies, permission or consent from the object needs to be obtained, and the collection, use, and processing of relevant data need to comply with the relevant laws, regulations, and standards of relevant countries and regions. That is to say, if the embodiments in the present application involve data related to an object, it needs to be obtained under the authorization and consent of the object, the authorization and consent of relevant departments, and compliance with the relevant laws, regulations, and standards of relevant countries and regions. If personal information is involved in the embodiments, the acquisition of all personal information requires the consent of the individual. If sensitive information is involved, the separate consent of the information subject needs to be obtained, and the embodiments also need to be implemented under the authorization and consent of the object.

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0055] In addition, the term "and / or" in this article is only a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after, unless otherwise specified.

[0056] Currently, a guide plate diagram of the relative positional relationship of branch blood vessels is generated using vascular interventional surgery planning software, and then the guide plate diagram is printed using a printing device and pasted on non-woven fabric. After punching holes in the non-woven fabric, the stent is punched through the non-woven fabric.

[0057] However, the above method has the following problems and disadvantages:

[0058] The operation process is cumbersome: It requires multiple steps such as generating a guide plate diagram by software, printing, pasting non-woven fabric, punching holes in the non-woven fabric, and then punching holes in the stent, which increases the time and complexity of surgical preparation.

[0059] The risk of error is relatively high: The processes of printing and attaching non-woven fabric may introduce errors, affecting the accuracy of hole punching, and thus may have an adverse impact on the surgical effect.

[0060] The material cost and operation difficulty increase: Using non-woven fabric as an intermediate medium increases the material cost and also increases the operation difficulty.

[0061] Based on this, the present application aims to provide a more convenient, accurate, and efficient method for external fenestration of an aortic stent. By directly projecting the guide plate diagram onto the stent on a one-to-one basis, it avoids the cumbersome operations and error problems of the prior art.

[0062] In an implementable manner, an embodiment of the present application provides a system for external fenestration of a stent, including:

[0063] A projection device for implementing the method of external fenestration of a stent;

[0064] A surgical planning software formulation device for generating a guide plate diagram indicating branch openings based on the aortic image data of a patient.

[0065] Among them, the surgical planning software formulation device and the projection device are connected by a data cable or wirelessly. The projection device is located near the stent and can clearly project the guide plate diagram onto the stent.

[0066] Before performing EVAR (Endovascular Aneurysm Repair) or TEVAR (Thoracic Endovascular Aortic Repair) surgery, use the vascular interventional surgical planning software of the surgical planning software formulation device to formulate a surgical plan, so as to generate a guide plate diagram of the relative positional relationship of branch vessels based on the aortic image data of the patient. Then, through the projection device, project the guide plate diagram directly onto the aortic stent to be punched on a one-to-one basis, so as to accurately perform windowing and hole punching operations on the stent according to the projected guide plate diagram, ensuring the blood flow supply of the branch vessels.

[0067] During the projection process, the projection device needs to be adjusted to appropriate brightness, contrast, and focal length to ensure the clear projection of the guide plate diagram. At the same time, the projection ratio is controlled to be one-to-one to ensure the accuracy of hole punching.

[0068] In some embodiments, the surgical planning software development device may encode and format the generated guide map data, send it to the projection device, and may also perform data compression to improve the transmission efficiency and data encryption to ensure data security. Correspondingly, after receiving the data, the projection device can perform decryption and decompression processing, restore the guide map data, and display it on the projection screen.

[0069] In some embodiments, the surgical planning software development device includes a processor, a memory, a storage device, a display, and an input device, etc. The processor is responsible for running the surgical planning software, processing the aortic image data of the patient, and generating a guide map of the relative positional relationship of the branch blood vessels. The memory is used to store the data during software operation, and the storage device is used to store patient data and software programs. The display is used to display the software interface and the guide map, and the input device is used for the doctor to input the surgical plan and parameters.

[0070] In some embodiments, the projection device may be a conventional projector, or an AR device or a VR device. The doctor can observe the guide map projected on the stent through the virtual reality device and perform the punching operation.

[0071] Specifically, refer to Figure 1 , Figure 1 A method for fenestration of a stent outside the body provided by an embodiment of the present application includes:

[0072] S101. Obtain a guide map, which is an image for indicating branch openings generated based on the aortic image data of the patient;

[0073] Among them, the guide map is an image generated based on the aortic image data of the patient, used to indicate the position and shape of the branch openings in the aorta, and is a reference for the doctor to punch the stent.

[0074] The aortic image data refers to the detailed image information of the patient's aorta obtained through medical imaging technology, including but not limited to key information such as the three-dimensional structure, shape, and size of the aorta and its branches. Then, an image automatically obtained from the arterial image data is used to generate a guide map for indicating the branch openings. The guide map is then sent to the projection device so that the projection device obtains the guide map.

[0075] In the embodiments of the present application, the generation process of the guide plate diagram includes: obtaining the aortic image data of the patient, such as CT angiography images; determining the position of the aorta based on the aortic image, where the way of determining the position can be confirmed by an experienced doctor or automatically recognized by an aortic recognition model; measuring the vascular data through measurement software to obtain aortic information, and the aortic information includes but is not limited to shape, length, and diameter; generating a three-dimensional image based on the aortic information and converting the three-dimensional image into a two-dimensional image to facilitate straightening the image; determining the fenestration position and fenestration size of the aorta in the two-dimensional image according to the lesion position of the patient to obtain the guide plate diagram. Among them, the aortic recognition model is trained by using the training images composed of aortic images and aortic labels.

[0076] Further, in order to ensure the accuracy of the guide plate diagram, after obtaining the three-dimensional image, simulation can also be performed based on the three-dimensional image to obtain an aortic model, and then it is determined whether the simulated aortic information of the aortic generation model matches the aortic information. If they match, then generate a three-dimensional image based on the aortic information and convert the three-dimensional image into a two-dimensional image to facilitate straightening the image to obtain the guide plate diagram; otherwise, regenerate the guide plate diagram.

[0077] S102. Divide the regions according to the branch openings in the guide plate diagram to obtain multiple regions, where each region includes complete branch openings.

[0078] Among them, the aorta and its branch vessels are divided into multiple independent regions according to the branch openings in the guide plate diagram. Each region contains complete branch openings, that is, each branch opening is completely located within the region and is not divided by other regions.

[0079] See Figure 2 , Figure 2 which is a schematic diagram of a guide plate diagram provided by the embodiments of the present application. The guide plate diagram includes: a proximal end identifier, the celiac trunk artery opening (CA), and other branch openings (SMA, RRA, LRA).

[0080] Specifically, since the aortic stent is cylindrical or conical, directly projecting onto the aortic stent may cause some branch openings not to be fully displayed on the aortic stent. Therefore, regional division and rotational projection can be performed, such that an opening is made immediately after each projection, and then other regions are projected again, finally completing the fenestration outside the stent. During the regional division process, it is necessary to ensure that each region contains complete branch openings, that is, each branch opening is completely located within the region and is not divided by other regions. The branch openings in the region can overlap.

[0081] S103. Project the guide plate diagram so that the first region among multiple regions of the guide plate diagram can be projected onto the aortic stent. The first region includes the reference arterial opening and the proximal end identifier.

[0082] S104. Adjust the projection angle and perform the projection of the guide plate diagram so that the remaining second regions among multiple regions of the guide plate diagram can be projected onto the aortic stent until the punching of the corresponding branch openings of each region is completed on the aortic stent.

[0083] The reference arterial opening refers to a specific branch arterial opening in the guide plate diagram, serving as a reference point for determining the positions of other branch openings. The proximal end identifier refers to the vascular part marked on the guide plate diagram near the heart end, which helps to determine the positions of the branch openings. Project the guide Figure 1 :1 onto the aortic stent. Since the aortic stent is cylindrical or conical-like, it may not be completely projected. Therefore, use the projection function of the software to project the first region onto the aortic stent, and adjust the projection angle and position according to the actual situation. Project the remaining regions in sequence according to the same steps until the punching operation of all branch openings on the aortic stent is completed.

[0084] It should be noted that the timing of this step can be when the reference arterial opening corresponding to the first region has been opened on the aortic stent, or when the shape of the reference arterial opening has been depicted at the corresponding position on the aortic stent. This embodiment does not limit it further. For the opening method, it can be manually opened by a doctor or opened by controlling a robotic arm. This embodiment does not limit it further.

[0085] It can be seen that in the embodiment of the present application, a guide plate diagram generated based on the patient's aortic image data is obtained. The guide plate diagram can accurately indicate the positions of the branch openings; the regions are divided according to the branch openings in the guide plate diagram; by projecting the first region of the guide plate diagram onto the aortic stent, the reference arterial opening and the proximal end identifier can be accurately positioned, so as to facilitate the stent fenestration operation based on the projected image. Since the stent is not planar but cylindrical or conical-like corresponding to the aortic shape selected based on the patient's aortic image data, a single projection may not accurately project all the branch openings. Then, adjust the projection angle and gradually complete the punching of all regions on the aortic stent, improving the accuracy and efficiency of the extracorporeal fenestration of the stent.

[0086] A possible implementation manner of the embodiment of the present application, S103. Project the guide plate diagram so that the first region among multiple regions of the guide plate diagram can be projected onto the aortic stent, including:

[0087] Determine the projection starting position on the aortic stent;

[0088] Based on the projection starting position, project the guide plate image so that the first region among multiple regions of the guide plate image can be projected onto the aortic stent.

[0089] Specifically, the doctor will select a suitable projection starting position on the stent according to the treatment goal. Refer to Figure 3 , Figure 3 which is a schematic diagram of a projection starting position provided by an embodiment of the present application.

[0090] Furthermore, project the guide plate image according to the projection starting position, so that the first region among multiple regions of the guide plate image can be projected onto the aortic stent, that is, the image of the first region can be clearly displayed on the aortic stent.

[0091] It can be seen that in the embodiment of the present application, after determining the projection starting position on the aortic stent, the first region of the guide plate image can be accurately projected based on this position, serving as a projection position reference, ensuring that the reference points for all subsequent projection operations are accurate, thereby avoiding possible deviations during the projection process.

[0092] A possible implementation manner of the embodiment of the present application is that the projection angle includes the projection angle of the projection device or the rotation angle of the aortic stent.

[0093] In one possible implementation manner, the aortic stent can be fixed and the projection angle can be adjusted. In another possible implementation manner, the projection device can be fixed and the aortic stent can be rotated.

[0094] To ensure that the guide plate image can be accurately projected onto the aortic stent, it is necessary to adjust the projection angle of the projection device or the rotation angle of the aortic stent. The adjustment of the projection angle may include changing the light source direction, tilt angle, etc. of the projection device, or rotating the aortic stent to align different regions on the stent with the corresponding regions on the guide plate image.

[0095] After adjusting the projection angle, project the guide plate image onto the aortic stent. The guide plate image usually contains information on multiple regions that need to be punched, and these regions include the positions of different branch artery openings, and each region includes at least two branch openings.

[0096] When projecting for the first time, it is necessary to project the first region onto the aortic stent; after the projection is completed, punch the branch openings in the first region; after the operation is completed, adjust the projection angle and project again so that the remaining second region can be clearly displayed on the aortic stent, and then perform the re-opening operation until all branch artery openings have been punched on the aortic stent. It can be understood that each time the projection angle is adjusted, it is determined according to the relative positional relationship of the branch openings in the actual guide plate image, so that the final openings on the aortic stent are consistent with the guide plate. Figure 1 Consistent.

[0097] It can be understood that it can be area - by - area projection followed by marking and then unified opening after the projection ends; or it can be opening while projecting. The embodiments of the present application do not make further limitations in this regard.

[0098] It can be seen that in the embodiments of the present application, the projection angle includes the projection angle of the projection device or the rotation angle of the aortic stent, enabling the adjustment of the projection direction and angle according to actual needs, so as to ensure that the guide plate diagram can be completely projected onto the aortic stent; making the entire extracorporeal fenestration process of the stent more flexible and efficient.

[0099] In a possible implementation manner of the embodiments of the present application, after projecting the guide plate diagram such that a first area among multiple areas of the guide plate diagram can be projected onto the aortic stent, it further includes:

[0100] Obtaining a first projection image of the aortic stent collected by an image acquisition device of the projection device;

[0101] Identifying a first position of a reference arterial opening in the first area of the first projection image and a second position of a proximal end identifier;

[0102] Determining whether a first relative position and a first standard relative position match, where the first relative position is the relative position between the first position and the second position;

[0103] If they do not match, adjusting the projection parameters and performing guide plate diagram projection according to the projection parameters so that the first relative position and the first standard relative position match.

[0104] Specifically, an image acquisition device is used to capture a first projection image of the aortic stent under a projection device, and the first projection image can show the projection effect. The first position of the reference artery opening and the second position of the proximal end marker are identified in the first projection image. The relative position between the first position (reference artery opening) and the second position (proximal end marker), that is, the first relative position, is calculated. This first relative position is compared with a pre-determined standard relative position (the first standard relative position). The first standard relative position is the relative position between the two based on the guide plate diagram. Among them, if the values of the first relative position and the first standard relative position are equal or the difference is within the preset difference range, it means that the two match, otherwise they do not match. If the first relative position and the first standard relative position do not match, it indicates that there is a deviation between the projection image and the actual position of the aortic stent. At this time, the projection parameters need to be adjusted to correct this deviation. The projection parameters may include the angle, focal length, brightness, and contrast of the projection device. By adjusting these parameters, the position and size of the projection image on the aortic stent can be changed. After adjusting the projection parameters, the guide plate diagram is projected again to check whether the first relative position matches the first standard relative position. If the matching is successful, the relevant operations in the subsequent second area can be continued.

[0105] It can be seen that in the embodiment of the present application, by verifying the projection effect, any possible deviation can be timely discovered and corrected, ensuring the accurate projection of the guide plate diagram in the aortic stent surgery, thereby improving the accuracy and safety of the surgery.

[0106] A possible implementation manner of the embodiment of the present application, S104, adjusting the projection angle and projecting the guide plate diagram so that the remaining second area in the multiple areas of the guide plate diagram can be projected on the aortic stent later, further includes:

[0107] Obtaining a second projection image of the aortic stent collected by the image acquisition device of the projection device;

[0108] Identifying the third position of the branch opening in the second area of the second projection image;

[0109] Determining whether the second relative position and the second standard relative position match, where the second relative position is the relative position between the third position and the target position;

[0110] If they do not match, adjusting the projection parameters and projecting the guide plate diagram according to the projection parameters so that the second relative position and the second standard relative position match.

[0111] Specifically, an image acquisition device is used to capture a second projection image of the aortic stent under a projection device, and the second projection image can show the projection effect. In the obtained second projection image, the third position of the branch opening in the second region of the second projection image is identified. The second region includes at least two branch openings, where at least one branch opening is the opening of the adjacent previous region.

[0112] The target position can be the position of the reference artery opening, or the position of other openings in the second region.

[0113] Exemplarily, the guide plate diagram sequentially includes artery opening 1, artery opening 2, artery opening 3, reference artery opening, artery opening 4, and artery opening 5. The region division can include: second region 1 (artery opening 1, artery opening 2), second region 2 (artery opening 2, artery opening 3, reference artery opening), first region (reference artery opening, artery opening 4), and second region 3 (artery opening 4, artery opening 5).

[0114] For artery opening 1 in second region 1, the target position can be the position of artery opening 2, or of course, it can also be the position of the reference artery opening calculated when projecting the second region. The embodiments of the present application do not limit this anymore, and users can set it according to actual needs.

[0115] It can be seen that in the embodiments of the present application, by verifying the projection effect of the second region, it is ensured that the projection of the guide plate diagram in the aortic stent surgery is accurate and error-free, thereby improving the accuracy and safety of the surgery.

[0116] A possible implementation manner of the embodiments of the present application is to divide regions according to the branch openings in the guide plate diagram to obtain multiple regions, including:

[0117] According to the size information of the branch openings and the size information of the aortic stent, regions are divided according to the branch openings in the guide plate diagram to obtain multiple regions.

[0118] Among them, according to the actual sizes and positions of the branch openings on the aortic stent and the size of the stent itself, the space on the guide plate diagram is divided into multiple specific regions, and each region corresponds to a branch opening for precise punching operations during the surgery.

[0119] It can be seen that in the embodiments of the present application, regions are divided according to the size information of the branch openings and the aortic stent. The division method based on the actual sizes ensures that each region can accurately correspond to the corresponding position on the aortic stent. The precise division method not only improves the customization degree of the stent fenestration outside the body, but also makes the entire operation process more efficient and accurate.

[0120] In summary, compared with the method of printing a guide plate diagram on a non-woven fabric and then punching holes, the embodiments of the present application have the following significant advantages:

[0121] 1. Simple and efficient operation.

[0122] The related technology requires multiple complex steps such as generating a guide plate diagram by software, printing, attaching the non-woven fabric, punching holes in the non-woven fabric, and then punching holes in the stent. In contrast, the embodiments of the present application directly project the guide Figure 1 onto the stent, greatly simplifying the operation process and saving the surgical preparation time. For example, in actual surgeries, when compared, it may take 30 minutes or even longer to complete the processing of the guide plate diagram and the preparation for punching holes in the stent using the related technology, while the embodiments of the present application can complete the same operation within 10 minutes, significantly improving the surgical efficiency.

[0123] 2. Improved accuracy.

[0124] In the related technology, errors may be introduced during the processes of printing and attaching the non-woven fabric, affecting the accuracy of punching holes. In contrast, the embodiments of the present application directly project onto the stent, avoiding error transmission in the intermediate links and enabling more accurate determination of the punching positions. Through the analysis of multiple groups of surgical cases, the deviation of the punching positions using the related technology may be about ±1 mm, while the deviation of the punching positions in the embodiments of the present application can be controlled within ±0.5 mm, improving the precision and safety of the surgery.

[0125] 3. Reduced cost and operation difficulty.

[0126] The related technology relies on the non-woven fabric as an intermediate medium, increasing the material cost and operation difficulty. The embodiments of the present application do not require the use of non-woven fabric, reducing the material cost and also reducing the operation steps, making it easier for doctors to master and operate. After cost accounting, using the related technology may require an additional amount of money for each surgery to purchase materials such as non-woven fabric, while the present invention can save this part of the cost.

[0127] Next, a stent extracorporeal fenestration device provided by the embodiments of the present application will be introduced. The stent extracorporeal fenestration device described below can be correspondingly referred to the stent extracorporeal fenestration method described above. The stent extracorporeal fenestration device of this embodiment is provided in a projection device. Refer to Figure 4 , Figure 4 which is the structural block diagram of the stent extracorporeal fenestration device of one embodiment of the present application, and includes:

[0128] An acquisition module 210, configured to acquire a guide plate diagram, where the guide plate diagram is an image for indicating branch openings generated based on the aortic image data of a patient;

[0129] The region division module 220 is configured to divide regions according to the branch openings in the guide plate diagram, obtaining multiple regions, where each region includes complete branch openings;

[0130] The projection module 230 is configured to project the guide plate diagram such that a first region among the multiple regions of the guide plate diagram can be projected onto the aortic stent, and the first region includes a reference artery opening and a proximal end identifier;

[0131] The angle adjustment module 240 is configured to, after the reference artery opening on the aortic stent, adjust the projection angle and perform the projection of the guide plate diagram such that the remaining second regions among the multiple regions of the guide plate diagram can be projected onto the aortic stent until the branch openings corresponding to each of the multiple regions are drilled on the aortic stent.

[0132] In a preferred example, the present application can be further configured as follows: The projection module 230 is configured to:

[0133] Determine the projection starting position on the aortic stent;

[0134] Based on the projection starting position, project the guide plate diagram such that a first region among the multiple regions of the guide plate diagram can be projected onto the aortic stent.

[0135] In a preferred example, the present application can be further configured as follows: The projection angle includes the projection angle of the projection device or the rotation angle of the aortic stent.

[0136] In a preferred example, the present application can be further configured as follows: It further includes:

[0137] The first verification module is configured to obtain a first projection image of the aortic stent collected by the image acquisition device of the projection device;

[0138] Identify a first position of the reference artery opening and a second position of the proximal end identifier in the first region of the first projection image;

[0139] Determine whether a first relative position and a first standard relative position match, where the first relative position is the relative position between the first position and the second position;

[0140] If they do not match, adjust the projection parameters and perform the projection of the guide plate diagram according to the projection parameters such that the first relative position and the first standard relative position match.

[0141] In a preferred example, the present application can be further configured as follows: It further includes:

[0142] The first verification module is configured to obtain a second projection image of the aortic stent collected by the image acquisition device of the projection device;

[0143] Identify a third position of the branch opening in the second region of the second projection image;

[0144] Determine whether the second relative position and the second standard relative position match, where the second relative position is the relative position between the third position and the target position;

[0145] If they do not match, adjust the projection parameters and project the guide map according to the projection parameters so that the second relative position and the second standard relative position match.

[0146] In a preferred example of the present application, it can be further configured as: a region division module 220, which is used to divide regions according to the size information of the branch opening and the size information of the aortic stent, and obtain multiple regions according to the branch opening in the guide map.

[0147] In an embodiment of the present application, a projection device is provided, as Figure 5 shown, Figure 5 The projection device 300 shown includes: a projection lens; a light source; a processor 301 and a memory 303. The projection lens is used to project the guide map onto the stent, and the light source provides the light required for projection. Among them, the processor 301 and the memory 303 are connected, such as connected through a bus 302. Optionally, the projection device 300 may further include a transceiver 304. It should be noted that in actual applications, the transceiver 304 is not limited to one, and the structure of the projection device 300 does not constitute a limitation to the embodiments of the present application.

[0148] The processor 301 may be a CPU (Central Processing Unit, central processor), a general-purpose processor, a DSP (Digital Signal Processor, data signal processor), an ASIC (Application Specific Integrated Circuit, application-specific integrated circuit), an FPGA (Field Programmable Gate Array, field programmable gate array) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logic blocks, modules and circuits described in combination with the disclosure of the present application. The processor 301 may also be a combination that realizes computing functions, such as a combination including one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0149] The bus 302 may include a path for transmitting information between the above components. The bus 302 can be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The bus 302 can be divided into an address bus, a data bus, a control bus, etc. For the sake of representation, Figure 5 it is only represented by a thick line in Figure 5 , but it does not mean that there is only one bus or one type of bus.

[0150] The memory 303 can be a ROM (Read Only Memory) or other types of static storage devices that can store static information and instructions, a RAM (Random Access Memory) or other types of dynamic storage devices that can store information and instructions, or it can also be an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory), or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media, or other magnetic storage devices, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0151] The memory 303 is used to store the application program code for executing the solution of this application, and is controlled by the processor 301 for execution. The processor 301 is used to execute the application program code stored in the memory 303 to implement the content shown in the foregoing embodiments of the method for external window opening of the bracket.

[0152] Figure 5 The projection device shown is only an example and should not impose any limitations on the functions and usage scope of the embodiments of this application.

[0153] The embodiments of this application provide a computer-readable storage medium on which a computer program is stored. When it runs on a computer, it enables the computer to execute the corresponding content in the foregoing embodiments of the method for external window opening of the bracket.

[0154] The embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the corresponding content in the foregoing embodiments of the method for external window opening of the bracket.

[0155] It should be understood that although the steps in the flowchart of the accompanying drawings are shown sequentially as indicated by the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction for the execution of these steps, and they can be executed in other orders. Moreover, at least a part of the steps in the flowchart of the accompanying drawings may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed alternately or in turn with at least a part of other steps or sub-steps or stages of other steps.

[0156] The above are only some embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A method for opening a window in vitro of a stent, characterized in that: include: Acquiring a guide plate image, wherein the guide plate image is an image generated based on the patient's aorta imaging data and used to indicate the branch opening; Dividing the regions according to the branch openings in the guide plate diagram to obtain a plurality of regions, wherein the branch openings included in each region are all complete branch openings; Projecting the guide plate map so that a first area of ​​the multiple areas of the guide plate map can be projected on the aortic stent, the first area including a reference arterial opening and a proximal end mark; Acquire a first projection image of the aortic stent acquired by an image acquisition device of a projection device; identify a first position of a reference artery opening in a first area of ​​the first projection image and a second position of a proximal end mark; determine whether a first relative position matches a first standard relative position, wherein the first relative position is a relative position between a first position and a second position; if the values ​​of the first relative position and the first standard relative position are equal or the difference is within a preset difference range, it indicates that the two match, otherwise the two do not match; if they do not match, adjust the projection parameters, and perform guide plate diagram projection according to the projection parameters, so that the first relative position matches the first standard relative position; wherein the first standard relative position is a relative position between the first position and the second position determined based on the guide plate diagram; The projection angle is adjusted, and the guide plate diagram is projected so that the remaining second area of ​​the multiple areas of the guide plate diagram can be projected onto the aortic stent until the branch openings corresponding to each of the multiple areas are punched into the aortic stent.

2. The method for opening a window in vitro of a stent according to claim 1, characterized in that: The projecting of the guide plate map so that a first area of ​​the plurality of areas of the guide plate map can be projected onto the aortic stent comprises: Determine the projection start position on the aortic stent; Based on the projection start position, the guide plate map is projected so that a first area among the multiple areas of the guide plate map can be projected onto the aortic stent.

3. The method for opening a window in vitro of a stent according to claim 1, characterized in that: The projection angle includes a projection angle of a projection device or a rotation angle of an aortic stent.

4. The method for opening a window in vitro of a stent according to claim 1, characterized in that: The method further comprises: adjusting the projection angle and performing the guide plate diagram projection so that the remaining second area of ​​the plurality of areas of the guide plate diagram can be projected behind the aortic stent; Acquire a second projection image of the aortic stent acquired by an image acquisition device of a projection device; identifying a third position of a branch opening of a second region of the second projection image; Determining whether a second relative position matches a second standard relative position, wherein the second relative position is a relative position between the third position and the target position; If they do not match, the projection parameters are adjusted, and the guide plate image is projected according to the projection parameters so that the second relative position matches the second standard relative position.

5. The method for opening a window in vitro of a stent according to any one of claims 1 to 4, characterized in that: The regions are divided according to the branch openings in the guide plate diagram to obtain multiple regions, including: According to the size information of the branch opening and the size information of the aortic stent, the branch opening in the guide plate diagram is divided into regions to obtain a plurality of regions.

6. A stent in vitro window opening device, characterized in that: include: An acquisition module, used for acquiring a guide plate map, wherein the guide plate map is an image generated based on the patient's aorta imaging data and used for indicating the branch opening; A region division module, used for performing region division according to the branch openings in the guide plate diagram to obtain a plurality of regions, wherein the branch openings included in each region are all complete branch openings; A projection module, configured to project the guide plate map so that a first area of ​​the plurality of areas of the guide plate map can be projected onto the aortic stent, the first area including a reference artery opening and a proximal end mark; An angle adjustment module, used for adjusting the projection angle and performing the guide plate diagram projection, so that the remaining second area of ​​the plurality of areas of the guide plate diagram can be projected onto the aortic stent, until the branch openings corresponding to the plurality of areas are punched into the aortic stent; A first verification module is used to obtain a first projection image of the aortic stent acquired by an image acquisition device of a projection device; identify a first position of a reference artery opening in a first area of ​​the first projection image and a second position of a proximal end mark; determine whether a first relative position matches a first standard relative position, wherein the first relative position is a relative position between a first position and a second position; if the values ​​of the first relative position and the first standard relative position are equal or the difference is within a preset difference range, it indicates that the two match, otherwise the two do not match; if they do not match, adjust the projection parameters, and perform guide plate projection according to the projection parameters, so that the first relative position matches the first standard relative position, wherein the first standard relative position is a relative position between the first position and the second position determined based on the guide plate map.

7. A projection device, characterized in that: include: Projection lens; light source; one or more processors; Memory; One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, and the one or more applications are configured to: execute the steps of the stent in vitro fenestration method according to any one of claims 1 to 5.

8. A stent in vitro window opening system, characterized in that: include: The projection device as claimed in claim 7; A surgical planning software formulation device is used to generate a guide map for indicating branch openings based on the patient's aortic imaging data.

9. A computer-readable storage medium, characterized in that: The storage medium stores at least one instruction, at least one program, code set or instruction set, and the at least one instruction, at least one program, code set or instruction set is loaded by the processor and executes the steps of the stent in vitro window opening method according to any one of claims 1 to 5.

Images