Bracket in-vitro windowing method, device, equipment, system and medium

Abstract

The invention relates to the field of stent windowing, in particular to a stent in-vitro windowing method, device, equipment, system and medium, and the method comprises the steps that a guide plate graph generated according to aorta image data of a patient is acquired, and the guide plate graph can accurately indicate the position of a branch opening; carrying out region division according to branch openings in the guide plate graph; the first area of the guide plate graph is projected to the aortic stent, the reference artery opening and the proximal end identification can be accurately positioned, stent windowing operation can be conveniently carried out according to the projected image, and the stent is not in a planar shape but is in a cylindrical shape or a cone-like shape corresponding to the shape of the aorta selected based on the aortic image data of the patient, so that the stent windowing operation is facilitated. Therefore, one-time projection may not accurately project all branch openings, then the projection angle is adjusted, punching of all areas on the aortic stent is completed step by step, and the accuracy and efficiency of in-vitro windowing of the stent are improved.

Description

Technical Field

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

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

[0003] In vascular interventional surgery, a guide map is generated based on the patient's imaging data, and then the guide map is printed on a non-woven fabric through a printing device. The doctor punches holes in the non-woven fabric according to the positions marked on the guide map, and finally uses the non-woven fabric with holes as a template, attaches it to the stent, and performs precise punching operations on 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 holes in the stent, which increases the time and complexity of surgical preparation. In addition, the process of printing and attaching the non-woven fabric may introduce errors, affecting the accuracy and efficiency of the punching. At the same time, the use of non-woven fabric as an intermediate medium increases the material cost and the difficulty of operation.

[0004] Therefore, how to solve the above problems has become an urgent matter to be solved by 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 opening a window in vitro of a stent, which can reduce costs, simplify operation, and improve the accuracy and efficiency of opening a window in vitro of the stent.

[0006] In a first aspect, a method for opening a window in vitro of a stent is provided, comprising:

[0007] 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;

[0008] 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;

[0009] 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;

[0010] 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.

[0011] In a preferred example, the present application may be further configured as follows: the projecting of the guide plate map so that the first area of ​​the multiple areas of the guide plate map can be projected onto the aortic stent comprises:

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

[0013] 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.

[0014] In a preferred example, the present application may be further configured as follows: 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 may be further configured to: project the guide plate map so that the first area of ​​the multiple areas of the guide plate map can be projected behind the aortic stent, and further include:

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

[0017] identifying a first location of a reference artery ostium and a second location of a proximal end marker in a first region of the first projection image;

[0018] Determining whether a first relative position matches a first standard relative position, wherein the first relative position is a relative position between the first position and the second position;

[0019] 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 first relative position matches the first standard relative position.

[0020] In a preferred example, the present application may be further configured to: adjust the projection angle, and perform the guide plate map projection, so that the remaining second area of ​​the plurality of areas of the guide plate map can be projected behind the aortic stent, and further include:

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

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

[0023] 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;

[0024] 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.

[0025] In a preferred example, the present application can be further configured as follows: dividing regions according to the branch openings in the guide plate diagram to obtain multiple regions, including:

[0026] 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.

[0027] In a second aspect, a stent in vitro window opening device is provided, comprising:

[0028] 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;

[0029] 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;

[0030] 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;

[0031] The angle adjustment module is used to adjust the projection angle and perform guide plate diagram projection, 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.

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

[0033] Projection lens;

[0034] light source;

[0035] one or more processors;

[0036] Memory;

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

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

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

[0040] In a sixth aspect, a stent in vitro window opening system is provided, comprising:

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

[0042] The surgical planning software formulation device is used to generate a guide map for indicating branch openings based on the patient's aortic imaging data.

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

[0044] In this scheme, a guide plate map generated according to the patient's aortic imaging data is obtained, and the guide plate map can accurately indicate the location of the branch opening; the area is divided according to the branch opening in the guide plate map; by projecting the first area of ​​the guide plate map onto the aortic stent, the reference arterial opening and the proximal end mark can be accurately located to facilitate the stent window opening operation based on the projected image. Since the stent is not planar, but cylindrical or conical in shape corresponding to the aorta selected based on the patient's aortic imaging data, one projection may not be able to accurately project all the branch openings. Then, the projection angle is adjusted to gradually complete the punching of all areas on the aortic stent, thereby improving the accuracy and efficiency of the stent in vitro window opening.

[0045] In addition, the present application also provides a device, equipment, system and medium for opening a window in vitro of a stent, all of which have the above-mentioned beneficial technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0047] Figure 1 A schematic diagram of a process for opening a window in vitro of a stent provided in an embodiment of the present application;

[0048] Figure 2 A schematic diagram of a guide plate diagram provided in an embodiment of the present application;

[0049] Figure 3 A schematic diagram of a projection starting position provided in an embodiment of the present application;

[0050] Figure 4 A schematic diagram of the structure of a stent in vitro window opening device provided in an embodiment of the present application;

[0051] Figure 5 A schematic diagram of the structure of a projection device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0052] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, a person skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by the patent law as long as they are within the scope of the present application.

[0053] It should be noted that in the optional embodiments of the present application, the object information and other related data involved, when the embodiments in the present application are applied to specific products or technologies, need to obtain the permission or consent of the object, and the collection, use and processing of the relevant data need to comply with the relevant laws, regulations and standards of the relevant countries and regions. In other words, if the embodiments of the present application involve data related to the object, it needs to be obtained with the authorization and consent of the object, the authorization and consent of the relevant departments, and in compliance with the relevant laws, regulations and standards of the country and region. If personal information is involved in the embodiments, the acquisition of all personal information needs to obtain the consent of the individual. If sensitive information is involved, the separate consent of the information subject needs to be obtained. The embodiments also need to be implemented with the authorization and consent of the object.

[0054] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

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

[0056] At present, vascular intervention surgery planning software is used to generate a guide map of the relative position relationship of the branch blood vessels, and then the guide map is printed out using a printing device and pasted on a 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 software generation of the guide map, printing, pasting the non-woven fabric, punching the non-woven fabric, and then punching holes in the stent, which increases the time and complexity of surgical preparation.

[0059] Higher risk of error: The process of printing and attaching the nonwoven fabric may introduce errors, affecting the accuracy of the punching, which may have an adverse effect on the surgical outcome.

[0060] Increased material costs and operational difficulty: Using non-woven fabrics as an intermediate medium increases material costs and also increases operational difficulty.

[0061] Based on this, the present application aims to provide a more convenient, accurate and efficient method for opening aortic stent in vitro windows, which avoids the cumbersome operations and error problems of the prior art by directly projecting the guide plate diagram onto the stent in a one-to-one ratio.

[0062] In one achievable manner, an embodiment of the present application provides a stent in vitro fenestration system, comprising:

[0063] A projection device, used to implement a stent in vitro windowing method;

[0064] The surgical planning software formulation device is used to generate a guide map for indicating branch openings based on the patient's aortic imaging data.

[0065] The surgical planning software making device and the projection device are connected via a data cable or wirelessly. The projection device is located near the bracket and can clearly project the guide plate image onto the bracket.

[0066] Before EVAR (Endovascular Aneurysm Repair) or TEVAR (Thoracic Endovascular Aortic Repair) surgery, the surgical planning software is used to develop the surgical plan, so that the guide map of the relative position relationship of the branch vessels can be generated according to the patient's aortic imaging data. Then, the guide map is directly projected one-to-one onto the aortic stent to be perforated through the projection device, so that the window and perforation operations can be accurately performed on the stent according to the projected guide map to ensure the blood supply of the branch vessels.

[0067] During the projection process, the projection equipment needs to be adjusted to the 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 one to one to ensure the accuracy of the punching.

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

[0069] In some embodiments, the surgical planning software formulation device includes a processor, a memory, a storage device, a display, and an input device. The processor is responsible for running the surgical planning software, processing the patient's aortic image data, and generating a guide map of the relative position relationship of the branch vessels. The memory is used to store data when the software is running, 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 can be a conventional projector, or an AR device or a VR device. The doctor can observe the guide plate image projected onto the bracket and perform the punching operation by wearing the virtual reality device.

[0071] For details, see Figure 1 , Figure 1 A method for opening a window in vitro of a stent provided in an embodiment of the present application includes:

[0072] S101, obtaining a guide plate image, where the guide plate image is an image generated based on the patient's aortic imaging data and used to indicate the branch opening;

[0073] Among them, the guide map is an image generated based on the patient's aortic imaging data, which is used to indicate the location and shape of the branch openings in the aorta and provide a reference for doctors to perform stent drilling.

[0074] Aortic imaging data refers to 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, morphology, and size of the aorta and its branches, and then the image generated by the arterial imaging data automatically obtains the guide plate map used to indicate the branch opening. The guide plate map is then sent to the projection device so that the projection device obtains the guide plate map.

[0075] In an embodiment of the present application, the process of generating a guide plate diagram includes: obtaining aortic imaging data of a patient, such as a CT angiography image; determining the position of the aorta according to the aortic image, wherein the method of determining the position can be confirmed by an experienced doctor or automatically identified by an aortic recognition model; measuring vascular data through measurement software to obtain aortic information, wherein 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 window position and window size of the aorta in the two-dimensional image according to the patient's lesion position, and obtaining a guide plate diagram. Among them, the aortic recognition model is obtained by training the model with a training image consisting of an aortic image and an aortic label.

[0076] Furthermore, in order to ensure the accuracy of the guide plate diagram, after obtaining the three-dimensional image, simulation can be performed based on the three-dimensional image to obtain an aortic model, and the simulated aortic information of the aortic generation model and the aortic information can be determined to match. If they match, the three-dimensional image is generated based on the aortic information, and the three-dimensional image is converted into a two-dimensional image to facilitate straightening the image to obtain the guide plate diagram; otherwise, the guide plate diagram is regenerated.

[0077] S102, 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 complete branch openings;

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

[0079] See also Figure 2 , Figure 2 A schematic diagram of a guide plate diagram provided in an embodiment of the present application, wherein the guide plate diagram includes: a proximal end mark and the celiac artery opening (CA) and other branch openings (SMA, RRA, LRA).

[0080] Specifically, since the aortic stent is cylindrical or conical, direct projection onto the aortic stent may result in some branch openings not being fully displayed on the aortic stent. Therefore, regional division can be performed, and rotational projection can be performed so that an opening is made immediately after each projection, and then other regions are projected again to finally complete the stent in vitro windowing. In the regional division process, it is necessary to ensure that the branch openings contained in each region are complete, that is, each branch opening is completely located in the region and is not divided by other regions. Branch openings in the region may overlap.

[0081] S103, projecting the guide plate image so that a first area of ​​the multiple areas of the guide plate image can be projected onto the aortic stent, the first area including a reference artery opening and a proximal end mark;

[0082] S104, adjusting the projection angle, and performing the guide plate diagram projection, so that the remaining second areas of the multiple areas of the guide plate diagram can be projected on the aortic stent, until the branch openings corresponding to the multiple areas are punched on the aortic stent.

[0083] The reference artery opening is a specific branch artery opening on the guide map, which serves as a reference point for determining the location of other branch openings. The proximal end mark refers to the part of the blood vessel near the heart marked on the guide map, which helps to determine the location of the branch opening. Figure 1 :1 is projected onto the aortic stent. Since the aortic stent is cylindrical or conical, it may not be fully projected. Therefore, the projection function of the software is used to project the first area onto the aortic stent, and the projection angle and position are adjusted according to the actual situation. The remaining areas are projected in the same way until all branch openings are punched on the aortic stent.

[0084] It should be noted that the timing of executing this step may be that the reference artery opening corresponding to the first region has been opened on the aortic stent, or the shape of the reference artery opening has been depicted at the corresponding position on the aortic stent, which is not limited in this embodiment. As for the opening method, it can be opened manually by a doctor or by controlling a robot hand, which is not limited in this embodiment.

[0085] It can be seen that in the embodiment of the present application, a guide plate map generated according to the patient's aortic imaging data is obtained, and the guide plate map can accurately indicate the position of the branch opening; the area is divided according to the branch opening in the guide plate map; by projecting the first area of ​​the guide plate map onto the aortic stent, the reference arterial opening and the proximal end mark can be accurately located, so as to facilitate the stent window opening operation based on the projected image. Since the stent is not planar, but cylindrical or conical in shape corresponding to the aorta shape selected based on the patient's aortic imaging data, one projection may not be able to accurately project all the branch openings. Then, the projection angle is adjusted to gradually complete the punching of all areas on the aortic stent, thereby improving the accuracy and efficiency of the stent in vitro window opening.

[0086] A possible implementation of the embodiment of the present application, S103, projecting the guide plate image so that a first area of ​​multiple areas of the guide plate image can be projected on the aortic stent, includes:

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

[0088] Based on the projection start position, the guide plate map is projected so that a first area among a plurality of areas of the guide plate map can be projected on the aortic stent.

[0089] Specifically, the doctor will select an appropriate projection starting position on the stent according to the treatment goal. Figure 3 , Figure 3 A schematic diagram of a projection starting position provided in an embodiment of the present application.

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

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

[0092] In a possible implementation manner of the embodiment of the present application, the projection angle includes a projection angle of a projection device or a rotation angle of an aortic stent.

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

[0094] In order to ensure that the guide plate image can be accurately projected on 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 and tilt angle of the projection device, or rotating the aortic stent to align different areas on the stent with corresponding areas on the guide plate image.

[0095] After adjusting the projection angle, the guide plate image is projected onto the aortic stent. The guide plate image usually contains information of multiple areas that need to be punched. These areas include different branch artery opening locations, and each area includes at least two branch openings.

[0096] During the first projection, the first area needs to be projected onto the aortic stent; after the projection is completed, the branch openings in the first area are punched; after the operation is completed, the projection angle is adjusted and projected again so that the remaining second area can be clearly displayed on the aortic stent, and then the opening operation is performed again until all branch artery openings are punched on the aortic stent. It can be understood that each adjustment of the projection angle is determined based on the relative position relationship of the branch openings in the actual guide plate diagram, so that the final opening of the aortic stent and the guide plate are consistent. Figure 1 To.

[0097] It is understandable that the projection may be performed in divided areas and then marked, and the opening may be unified after the projection is completed; or the opening may be performed while the projection is performed, which is not limited in the embodiments of the present application.

[0098] It can be seen that in the embodiment of the present application, the projection angle includes the projection angle of the projection device or the rotation angle of the aortic stent, so that the direction and angle of the projection can be adjusted according to actual needs, thereby ensuring that the guide plate image can be completely projected onto the aortic stent; making the entire stent in vitro window opening process more flexible and efficient.

[0099] A possible implementation of the embodiment of the present application is to project the guide plate image so that the first area of ​​the multiple areas of the guide plate image can be projected behind the aortic stent, and further includes:

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

[0101] identifying a first location of a reference arterial ostium and a second location of a proximal end marker in a first region of a first projection image;

[0102] Determine whether a first relative position matches a first standard relative position, the first relative position being a relative position between the first position and the second position;

[0103] 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 first relative position matches the first standard relative position.

[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. A first position of the reference artery opening and a second position of the proximal end mark are identified in the first projection image. The relative position between the first position (reference artery opening) and the second position (proximal end mark), that is, the first relative position, is calculated. The first relative position is compared with a predetermined standard relative position (first standard relative position). The first standard relative position is a relative position between the two determined 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 a preset difference range, it means that the two match, otherwise the two do not match. If the first relative position and the first standard relative position do not match, it means 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 the 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 match is successful, you can continue with the subsequent related operations in the second area.

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

[0106] A possible implementation of the embodiment of the present application, S104, adjusting the projection angle, and performing the guide plate image projection, so that the remaining second area of ​​the multiple areas of the guide plate image can be projected behind the aortic stent, further includes:

[0107] Acquire a second projection image of the aortic stent acquired by an image acquisition device of the projection device;

[0108] identifying a third location of the branch opening of the second region of the second projection image;

[0109] Determine whether the second relative position matches the second standard relative position, the second relative position being the relative position of the third position and the target position;

[0110] 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.

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

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

[0113] Exemplarily, the guide plate diagram includes arterial opening 1, arterial opening 2, arterial opening 3, reference arterial opening, arterial opening 4, and arterial opening 5 in sequence, and the area division may include: second area 1 (arterial opening 1, arterial opening 2), second area 2 (arterial opening 2, arterial opening 3, reference arterial opening), first area (reference arterial opening, arterial opening 4), and second area 3 (arterial opening 4, arterial opening 5).

[0114] For the arterial opening 1 of the second region 1, the target position may be the position of the arterial opening 2, or may be the position of the reference arterial opening calculated when projecting the second region. The present application embodiment is not limited thereto, and the user may set it according to actual needs.

[0115] It can be seen that in the embodiment of the present application, by verifying the projection effect of the second area, the accurate projection of the guide plate image in the aortic stent surgery is ensured, thereby improving the accuracy and safety of the surgery.

[0116] A possible implementation of the embodiment of the present application is to divide the 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 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.

[0118] Among them, according to the actual size and position of each branch opening on the aortic stent, as well as the size of the stent itself, the space on the guide plate diagram is divided into multiple specific areas, each area corresponding to a branch opening, so as to perform precise punching operations during the operation.

[0119] It can be seen that in the embodiment of the present application, the area division is performed according to the size information of the branch opening and the aortic stent. The division method based on the actual size ensures that each area can accurately correspond to the corresponding position on the aortic stent. The precise division method not only improves the customization degree of the stent in vitro window opening, but also makes the entire operation process more efficient and accurate.

[0120] In summary, compared with the method of printing a guide plate pattern and sticking it on a non-woven fabric and then punching holes, the embodiment of the present application has the following significant advantages:

[0121] 1. Easy and efficient operation.

[0122] The related technology requires multiple complex steps such as software generation of guide plate diagram, printing, pasting non-woven fabric, punching holes in the non-woven fabric, and then punching holes in the bracket. However, the embodiment of the present application directly Figure 1 Compared with the projection onto the stent, the operation process is greatly simplified and the surgical preparation time is saved. For example, in actual surgery, it may take 30 minutes or even longer to complete the processing of the guide plate image and the preparation of the stent punching using related technologies, while the embodiment of the present application can complete the same operation within 10 minutes, significantly improving the surgical efficiency.

[0123] 2. Improve accuracy.

[0124] The process of printing and attaching non-woven fabrics in related technologies may introduce errors and affect the accuracy of punching. However, the embodiment of the present application directly projects onto the bracket, avoiding the error transmission in the intermediate links and being able to more accurately determine the punching position. Through the analysis of multiple groups of surgical cases, the punching position deviation using related technologies may be around ±1mm, while the punching position deviation of the embodiment of the present application can be controlled within ±0.5mm, which improves the accuracy and safety of the surgery.

[0125] 3. Reduce costs and operational difficulty.

[0126] The related technology relies on non-woven fabrics as an intermediate medium, which increases material costs and operational difficulties. The embodiments of the present application do not need to use non-woven fabrics, which reduces material costs and also reduces the number of operating steps, making it easier for doctors to master and operate. According to cost accounting, each operation using the related technology may require an additional amount of money to purchase materials such as non-woven fabrics, while the present invention can save this part of the cost.

[0127] The following is an introduction to a stent external window opening device provided in an embodiment of the present application. The stent external window opening device described below and the stent external window opening method described above can be referred to each other. The stent external window opening device of this embodiment is set in a projection device, and the reference Figure 4 , Figure 4 This is a structural block diagram of a stent in vitro window opening device according to one embodiment of the present application, comprising:

[0128] An acquisition module 210 is used to acquire a guide plate map, which is an image generated based on the patient's aorta imaging data and used to indicate the branch opening;

[0129] A region division module 220, configured to divide 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 complete branch openings;

[0130] A projection module 230, configured to project the guide plate image so that a first area among the multiple areas of the guide plate image can be projected on the aortic stent, the first area including a reference arterial opening and a proximal end mark;

[0131] The angle adjustment module 240 is used to adjust the projection angle and perform guide plate diagram projection after the reference artery opening on the aortic stent is opened, so that the remaining second areas of the multiple areas of the guide plate diagram can be projected on the aortic stent until the branch openings corresponding to the multiple areas are completed and punched on the aortic stent.

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

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

[0134] Based on the projection start position, the guide plate map is projected so that a first area among a plurality of areas of the guide plate map can be projected on the aortic stent.

[0135] In a preferred example, the present application may 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:

[0137] A first verification module is used to obtain a first projection image of the aortic stent acquired by an image acquisition device of the projection device;

[0138] identifying a first location of a reference arterial ostium and a second location of a proximal end marker in a first region of a first projection image;

[0139] Determine whether a first relative position matches a first standard relative position, the first relative position being a relative position between the first position and the second position;

[0140] 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 first relative position matches the first standard relative position.

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

[0142] A first verification module is used to obtain a second projection image of the aortic stent acquired by an image acquisition device of the projection device;

[0143] identifying a third location of the branch opening of the second region of the second projection image;

[0144] Determine whether the second relative position matches the second standard relative position, the second relative position being the relative position of the third position and the target position;

[0145] 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.

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

[0147] In an embodiment of the present application, a projection device is provided, such as Figure 5 As 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 plate image onto the bracket, and the light source provides the light required for projection. The processor 301 and the memory 303 are connected, such as through a bus 302. Optionally, the projection device 300 may also 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 on the embodiments of the present application.

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

[0149] The bus 302 may include a path to transmit information between the above components. The bus 302 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. The bus 302 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 5 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0150] The memory 303 may 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 an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory) or other optical disk storage, optical disk storage (including compressed optical disk, laser disk, optical disk, digital versatile disk, Blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage device, 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 code for executing the solution of the present application, and the execution is controlled by the processor 301. The processor 301 is used to execute the application code stored in the memory 303 to implement the contents shown in the above embodiment of the stent in vitro fenestration method.

[0152] Figure 5 The projection device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0153] An embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer-readable storage medium is run on a computer, the computer can execute the corresponding contents of the aforementioned embodiment of the stent in vitro fenestration method.

[0154] An embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the corresponding contents of the aforementioned embodiment of the stent in vitro fenestration method.

[0155] It should be understood that, although the steps in the flowchart of the accompanying drawings are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on 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, and 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 in turn or alternately with other steps or at least a part of the sub-steps or stages of other steps.

[0156] The above are only some implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection 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 image so that a first area of ​​the plurality of areas of the guide plate image can be projected onto the aortic stent, the first area including a reference arterial opening and a proximal end mark; 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: Projecting the guide plate map so that a first area of ​​the plurality of areas of the guide plate map can be projected behind the aortic stent further comprises: Acquire a first projection image of the aortic stent acquired by an image acquisition device of a projection device; identifying a first location of a reference artery ostium and a second location of a proximal end marker in a first region of the first projection image; Determining whether a first relative position matches a first standard relative position, wherein the first relative position is a relative position between the first position and the second 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 first relative position matches the first standard relative position.

5. 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.

6. The method for opening a window in vitro of a stent according to any one of claims 1 to 5, 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.

7. 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; The angle adjustment module is used to adjust the projection angle and perform guide plate diagram projection 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.

8. 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 6.

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

10. 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 6.

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