A minimally invasive eye needle and method of use thereof

Abstract

The application discloses a minimally invasive eye needle and a use method thereof, and relates to the medical field.The eye needle comprises a needle body and a precise positioning navigation module, the diameter of the needle body is 0.2-0.5 mm, the tip of the needle body is a blunt bevel structure, the needle body is connected with a syringe, the inside of the needle body is provided with a liquid medicine channel in communication with the syringe, and the precise positioning navigation module is detachably connected with the needle body.Thus, by matching the precise positioning navigation module with the extremely fine needle body, the limitation that the naked eye and a conventional microscope cannot distinguish the fine blood vessels is effectively avoided.Meanwhile, the positioning accuracy can be calibrated in real time, the precise positioning navigation module can monitor the relative distance between the needle body and the eye blood vessel network in real time during the advancing process of the needle body, medical staff can clearly master the real-time position state of the needle body, when the needle body approaches the blood vessel network and the distance is less than the safety distance, the module can timely send an acoustic and light early warning signal, the occurrence risk of postoperative complications such as infection is effectively reduced, and the safety of the eye of the patient is effectively ensured.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and in particular to a minimally invasive eye acupuncture and its method of use. Background Technology

[0002] The eye is one of the most intricate and fragile organs in the human body, with a dense network of blood vessels and nerves and complex tissue layers. Eye tissues are extremely sensitive to mechanical stimulation and damage; even slight operational errors can lead to serious complications such as bleeding, edema, infection, and even blindness, causing irreversible vision loss. In ophthalmological clinical diagnosis and treatment, procedures such as anterior chamber paracentesis, drug infusion, and tissue sample collection are important tools for diagnosing and treating intraocular infections, glaucoma, and other diseases. However, the clinical practice of performing these eye procedures relies heavily on the clinical experience and manual operation of medical staff, which has several limitations.

[0003] Firstly, in traditional ophthalmic diagnostic procedures, puncture localization often relies on medical staff observing the surface structure of the eye under a microscope and combining their own experience to determine the puncture point and puncture path. Because the ocular vascular network is fine and complex, it is difficult to clearly distinguish the direction of blood vessels and their relative position to the treatment site with the naked eye and conventional microscopes. Furthermore, factors such as the physiological tremors of the medical staff's hands and differences in their operating experience can easily lead to puncture localization errors, which may result in accidental puncture of ocular blood vessels or important nerve tissues, causing complications such as intraocular hemorrhage and corneal edema.

[0004] Furthermore, during needle advancement, current operating methods cannot monitor the relative distance between the needle and the ocular vascular network in real time. Medical staff cannot promptly grasp the needle's position and must rely on experience to judge the advancement rhythm and direction. When the needle approaches the vascular network, medical staff cannot receive timely alerts, and the needle may scratch or accidentally puncture blood vessels due to excessively fast operation or failure to adjust direction in time. This further increases the risk of postoperative infections, sympathetic ophthalmia, and other complications, seriously threatening the patient's ocular safety. Application content

[0005] This application aims to address, at least to some extent, the technical problems in the related art.

[0006] To achieve the above objectives, this application proposes a minimally invasive ocular acupuncture, comprising a needle body and a precise positioning and navigation module. The needle body has a diameter of 0.2mm-0.5mm, and the tip of the needle body has a blunt oblique cut structure. The needle body is connected to a syringe, and the needle body has a drug channel communicating with the syringe. The precise positioning and navigation module is detachably connected to the needle body, and can acquire images of ocular tissue in real time, identify the location of ocular vascular network, locate the treatment site, and guide the needle body for precise puncture.

[0007] Specifically, the needle body is 4mm-8mm in length, made of medical stainless steel or titanium alloy, and its surface is polished and coated with a biocompatible coating.

[0008] Specifically, the precise positioning and navigation module includes an image acquisition unit, a blood vessel recognition unit, a positioning guidance unit, and a display unit; the image acquisition unit is used to acquire high-definition images of the local area of ​​the eye; the blood vessel recognition unit is used to identify the distribution and direction of the blood vessel network in the eye from the acquired images; the positioning guidance unit is used to plan the puncture path and guide the movement of the needle in real time according to the coordinates of the treatment site and the distribution of the blood vessel network; and the display unit is used to display the eye image, blood vessel network markings, and puncture path.

[0009] Specifically, the positioning accuracy of the precision positioning and navigation module is ≤10μm, which can capture the relative position of the needle body and the vascular network in real time, and issue an early warning signal when the needle body approaches the preset safe distance of the vascular network.

[0010] Specifically, the syringe is provided with a non-slip grip, the surface of which is provided with textured surfaces, and the liquid channel is used to deliver diagnostic and therapeutic drugs or to extract ocular tissue samples.

[0011] Specifically, the image acquisition unit uses a miniature high-definition camera, which can clearly capture the fine vascular structures of the eye, such as the limbal vascular network and ciliary vessels.

[0012] A method for using minimally invasive eye acupuncture includes the following steps: 1) Connect and fix the precision positioning navigation module to the needle body, calibrate the precision positioning navigation module to ensure that the positioning accuracy meets the requirements, disinfect the eye treatment area, acquire high-definition images of the eye through the image acquisition unit of the precision positioning navigation module, and identify the distribution and direction of the eye vascular network by the vascular recognition unit to determine and mark the coordinates of the treatment site; 2) Medical staff hold the non-slip grip of the needle body and use a gentle surgical technique. They lightly grip the non-slip grip with their fingertips and avoid pressing the needle body with force. According to the puncture path displayed by the precise positioning and navigation module, they gently align the needle body with the preset puncture point on the eye. Under the real-time guidance of the positioning and guidance unit, they slowly and evenly advance the needle body with gentle and even force. 3) During the procedure, maintain a gentle rhythm and use the precise positioning navigation module to monitor the relative position of the needle and the vascular network in real time. When the needle approaches the vascular network, adjust the puncture direction according to the warning signal. Move slowly and avoid suddenly shaking the needle to ensure that the needle avoids the vascular network and directly targets the treatment site. 4) Upon reaching the treatment site, administer medication or extract tissue samples slowly using a syringe to avoid excessive flow rate that could cause discomfort to the eye tissues, thus completing the treatment procedure; 5) After the diagnosis and treatment are completed, under the guidance of the precise positioning and navigation module, slowly pull out the needle, disinfect the puncture site, disassemble the precise positioning and navigation module and clean and disinfect it for the next use.

[0013] Specifically, in step 3), the preset safety distance is 0.1mm-0.2mm. When the distance between the needle body and the vascular network is less than this safety distance, the precise positioning and navigation module issues an audible and visual warning signal.

[0014] In summary, the beneficial effects of this minimally invasive eye acupuncture and its application method are as follows: 1. Utilizing a precise positioning and navigation module in conjunction with an ultra-fine needle, this system captures the fine structures of the eye, clearly distinguishing the course of the eye's microvascular network and its relative position to the treatment site. This effectively avoids the limitations of the naked eye and conventional microscopes in distinguishing minute blood vessels. Simultaneously, it allows for real-time calibration of positioning accuracy, reducing positioning deviations caused by differences in operator experience. This prevents accidental puncture of blood vessels or important nerve tissues in the eye, lowering the risk of complications such as intraocular hemorrhage and corneal edema, and ensuring the accuracy and safety of puncture positioning.

[0015] 2. The precise positioning and navigation module can monitor the relative distance between the needle and the ocular vascular network in real time during needle advancement, allowing medical staff to clearly grasp the real-time position of the needle. When the needle approaches the vascular network and the distance is less than the safe distance, the module will promptly issue an audible and visual warning signal, reminding medical staff to adjust the puncture direction and advancement rhythm from multiple dimensions. This avoids the needle scratching or accidentally puncturing blood vessels due to excessively fast operation or failure to adjust the direction in time, effectively reducing the risk of postoperative infections and other complications, and ensuring the safety of the patient's eyes. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a structural schematic diagram of a minimally invasive eye acupuncture needle and its usage method according to this application.

[0017] Figure 2 This is a schematic diagram of a minimally invasive eye acupuncture technique and its usage method according to this application.

[0018] As shown in the figure: 1. Needle body; 2. Syringe. Detailed Implementation

[0019] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] The present application will now be described in further detail with reference to the accompanying drawings.

[0021] like Figure 1 As shown in the figure, a minimally invasive eye acupuncture in this application includes a needle body 1 and a precise positioning and navigation module. The needle body 1 has a diameter of 0.2mm-0.5mm and a blunt oblique cut at the tip. The needle body 1 is connected to a syringe 2. The needle body 1 has a drug channel communicating with the syringe 2 inside. The precise positioning and navigation module is detachably connected to the needle body 1, which can collect images of eye tissue in real time, identify the position of the eye vascular network and locate the treatment site, and guide the needle body 1 to puncture precisely.

[0022] It should be noted that the tip of needle 1 has a blunt oblique cut structure, which can effectively avoid sharp damage to the fragile tissues of the eye during puncture, reducing the risk of complications such as bleeding and edema. The drug channel can realize the precise delivery of diagnostic and therapeutic drugs or the safe extraction of eye tissue samples. The precise positioning and navigation module can acquire eye tissue images in real time, accurately identify the location of the eye vascular network and accurately locate the treatment site, guiding needle 1 to complete the precise puncture throughout the process, greatly improving the safety and accuracy of minimally invasive eye diagnosis and treatment.

[0023] In one embodiment of this application, the needle body 1 has a length of 4mm-8mm, is made of medical stainless steel or titanium alloy, and has a polished surface coated with a biocompatible coating.

[0024] Specifically, the needle body 1 is made of medical-grade stainless steel or titanium alloy, which has excellent biocompatibility and corrosion resistance, and can avoid the material itself from causing irritation or allergic reactions to the eye tissue. The polishing treatment of the needle body 1 can reduce the frictional resistance between the needle body 1 and the eye tissue during puncture, and reduce tissue damage. The biocompatibility coating further improves the compatibility between the needle body 1 and the eye tissue, reduces foreign body reactions, and at the same time prevents drug residue and facilitates subsequent cleaning and disinfection.

[0025] In one embodiment of this application, such as Figure 2As shown, the precise positioning and navigation module includes an image acquisition unit, a blood vessel recognition unit, a positioning guidance unit, and a display unit. The image acquisition unit is used to acquire high-definition images of the local area of ​​the eye. The blood vessel recognition unit is used to identify the distribution and direction of the blood vessel network in the eye from the acquired images. The positioning guidance unit is used to plan the puncture path and guide the needle body 1 to move in real time according to the coordinates of the treatment site and the distribution of the blood vessel network. The display unit is used to display the eye image, blood vessel network markings, and puncture path.

[0026] Specifically, the image acquisition unit can quickly acquire high-definition images of local areas of the eye, clearly presenting the fine structures of eye tissues such as the cornea, conjunctiva, and sclera. The blood vessel recognition unit has a built-in intelligent recognition algorithm that can accurately identify the distribution range, direction, and diameter of the eye's blood vessel network from the acquired high-definition images. It can clearly distinguish the fine blood vessel structures such as the limbal blood vessel network and ciliary vessels, avoiding puncture damage caused by inaccurate blood vessel recognition.

[0027] The positioning and guidance unit can automatically plan the optimal puncture path based on the preset coordinates of the treatment site and the identified vascular network distribution data, track the position of the needle 1 in real time and provide dynamic guidance to ensure that the needle is always advanced along the preset path; the display unit uses a high-definition display screen, which can simultaneously display images of eye tissue, vascular network markers and puncture path, allowing medical staff to monitor the puncture progress and needle position in real time, thereby improving the safety of the operation.

[0028] In one embodiment of this application, the positioning accuracy of the precision positioning navigation module is ≤10μm, which can capture the relative position of the needle body 1 and the vascular network in real time, and issue an early warning signal when the needle body 1 approaches the vascular network at a preset safe distance.

[0029] It should be noted that the positioning accuracy is ≤10μm, which can meet the extremely high requirements of minimally invasive ocular diagnosis and treatment. It can accurately capture the relative position changes between the needle body 1 and the vascular network in real time and promptly report the needle body deviation. To further ensure puncture safety, when the needle body 1 approaches the preset safe distance of the vascular network, the module will automatically issue a warning signal to remind medical staff to adjust the operation in time to avoid the needle body 1 damaging blood vessels and causing complications such as bleeding.

[0030] In one embodiment of this application, the syringe 2 is provided with an anti-slip grip, the surface of which is provided with a textured surface, and the liquid channel is used to deliver diagnostic drugs or extract ocular tissue samples.

[0031] Specifically, the anti-slip grip can effectively increase the friction between the fingertips of medical staff and the grip, avoiding needle slippage caused by sweaty hands or uneven force during operation, thus improving the stability and accuracy of the operation. The smooth inner wall of the drug channel can reduce the resistance during drug delivery and avoid drug residue. This channel has the function of delivering diagnostic and therapeutic drugs and extracting eye tissue samples.

[0032] In one embodiment of this application, the image acquisition unit uses a miniature high-definition camera, which can clearly capture the fine vascular structures of the eye, such as the limbal vascular network and ciliary vessels.

[0033] Specifically, the camera is small in size and can be precisely adapted to the needle body 1 without affecting the puncture operation. It also features high resolution and high frame rate, which can clearly capture the fine blood vessel structures in the eye such as the limbal vascular network and ciliary vessels. It can also accurately identify blood vessels with small diameters and hidden distribution, providing reliable image support for puncture path planning and real-time guidance.

[0034] A method for using minimally invasive eye acupuncture includes the following steps: 1. Connect and fix the precision positioning navigation module to the needle body 1, calibrate the precision positioning navigation module to ensure that the positioning accuracy meets the requirements, disinfect the eye treatment area, acquire high-definition images of the eye through the image acquisition unit of the precision positioning navigation module, and identify the distribution and direction of the eye blood vessel network by the blood vessel recognition unit to determine and mark the coordinates of the treatment site.

[0035] It should be noted that the positioning accuracy meets the requirements of high-precision operation in ophthalmic diagnosis and treatment. Because the ocular tissue is extremely fragile, with dense and delicate blood vessels and nerves, even a slight positioning deviation can cause serious complications such as ocular tissue damage and blood vessel rupture.

[0036] After calibration, strictly adhering to aseptic techniques, the eye treatment area is disinfected with povidone-iodine, repeatedly wiped 2-3 times to ensure thorough removal of bacteria, dust, and other contaminants from the skin surface, thus mitigating the risk of infection during the procedure. Following disinfection, the image acquisition unit of the precision positioning and navigation module is activated. Combined with infrared illumination technology, it acquires high-definition images of the eye from multiple angles, clearly capturing the fine structures of the eyelids, conjunctiva, and blood vessels, avoiding image blurring due to insufficient light.

[0037] Subsequently, the AI ​​blood vessel recognition unit built into the module uses advanced algorithms such as image threshold segmentation and contour extraction to quickly and accurately identify the distribution range, direction and diameter of the ocular vascular network. At the same time, combined with a pre-set standardized ocular anatomy database, the module performs comprehensive analysis on the collected image data, accurately calculates and marks the three-dimensional coordinates of the treatment site, and provides a clear and accurate positioning benchmark for subsequent puncture operations.

[0038] With positioning accuracy far exceeding that of manual positioning, it effectively avoids the subjective errors of human positioning. The AI ​​vascular recognition technology responds quickly and identifies accurately, and can screen and avoid densely vascularized areas in advance, significantly reducing the risk of bleeding during puncture. The standardized aseptic operation procedure minimizes the probability of postoperative infection. The clear coordinate markings provide clear operation guidance for medical staff, greatly reducing the difficulty of minimally invasive eye acupuncture, and making it especially suitable for novice medical staff.

[0039] With high positioning accuracy, it effectively avoids the subjective errors of human positioning. AI blood vessel recognition is fast and accurate, and can avoid densely populated areas of blood vessels in advance, reducing the risk of puncture bleeding. Aseptic operation is standardized, reducing the probability of postoperative infection from the source. The coordinate markings are clear, providing clear operation guidance for medical staff and reducing the difficulty of operation.

[0040] 2. The medical staff holds the non-slip grip of the needle body 1 and uses a gentle surgical technique, lightly gripping the non-slip grip with their fingertips, avoiding pressing the needle body with force. According to the puncture path displayed by the precise positioning navigation module, the needle body 1 is gently aligned with the preset puncture point on the eye. Under the real-time guidance of the positioning guidance unit, the needle body 1 is slowly and evenly advanced with gentle and uniform force.

[0041] It should be noted that the anti-slip grip of the handheld needle 1 should be used with a gentle surgical technique, lightly gripping the middle section of the grip with the fingertips, avoiding pressing the needle itself forcefully. It should also be noted that this anti-slip grip is made of medical-grade silicone, possessing both good biocompatibility and anti-slip properties. The surface is designed with a textured anti-slip surface, which effectively increases the friction between the hand and the grip, preventing the needle 1 from slipping or wobbling during operation due to sweaty hands or uneven force, thus ensuring operational stability.

[0042] During the procedure, a gentle approach is essential. Avoid applying excessive pressure to the needle (1). Most micro-invasive needles for the eye are designed with a small diameter and relatively thin material; applying excessive pressure can easily cause the needle to bend or deform, potentially scratching the delicate tissues of the eye and leading to complications such as bleeding and edema. Subsequently, based on the real-time puncture path, angle, and depth parameters displayed by the precise positioning and navigation module, medical staff gently align the needle (1) with the pre-set puncture point on the eye. Under the real-time optical guidance of the module's positioning and guidance unit, the needle (1) is slowly and evenly advanced. Throughout the advancement process, the force is kept gentle and uniform, avoiding any sudden or forceful thrusts to ensure the needle is smoothly advanced along the pre-set safe path.

[0043] 3. During the procedure, maintain a gentle rhythm and use the precise positioning and navigation module to monitor the relative position of needle 1 and the vascular network in real time. When needle 1 approaches the vascular network, adjust the puncture direction according to the warning signal. Move slowly and avoid suddenly shaking the needle to ensure that needle 1 avoids the vascular network and directly targets the treatment site.

[0044] It should be noted that during the advancement of needle 1, a gentle surgical rhythm must be maintained at all times. The precise positioning and navigation module must remain continuously operational, collecting real-time relative position data between needle 1 and the ocular vascular network, and performing dynamic analysis and comparison. Using a real-time image comparison algorithm, the distance between the tip of needle 1 and the edge of the blood vessel is calculated. When the distance is less than a preset safety threshold, the module will simultaneously issue a dual warning signal through an audible alert and a flashing display unit, promptly reminding medical staff to adjust the operation.

[0045] When a warning signal is received, medical staff need to slow down the pace of the operation, gently adjust the puncture direction, and keep the adjustment angle within a minimal range to avoid sudden shaking of the needle. Sudden shaking can easily cause the needle tip to scratch the conjunctiva, sclera, or other tissues of the eye, or accidentally puncture blood vessels, leading to complications such as bleeding and tissue edema. By gently adjusting, ensure that the needle 1 always avoids the vascular network and important nerve tissues, accurately targeting the preset treatment site, and further ensure the safety of the puncture operation.

[0046] 4. After reaching the treatment site, slowly administer medication or extract tissue samples using syringe 2 to avoid excessive flow rate causing discomfort to the eye tissue, and complete the treatment procedure.

[0047] It should be noted that after needle 1 accurately reaches the treatment site, syringe 2 is connected, and the drug infusion or tissue sample extraction is performed slowly according to the preset dosage. The flow rate must be strictly controlled to avoid discomfort to the eye tissue caused by excessive flow. It should be noted that the eye tissue has a limited volume and extremely high sensitivity. If the drug infusion or sample extraction flow rate is too fast, it will cause a sudden increase in local intraocular pressure and rapid tissue edema, leading to discomfort symptoms such as eye pain and nausea. In severe cases, it may even damage the optic nerve. Slow operation allows the drug to penetrate evenly to the treatment site, ensuring maximum treatment effect. At the same time, it can avoid damage to the tissue sample due to excessive extraction, ensuring the integrity of the sample and providing reliable evidence for subsequent pathological testing.

[0048] After completing drug infusion or tissue sample collection, the needle should remain in place for 3-5 seconds to ensure that the drug is fully applied to the treatment site and the tissue sample is completely collected before proceeding with subsequent procedures. This avoids affecting the treatment effect due to hasty operations.

[0049] 5. After the diagnosis and treatment are completed, under the guidance of the precise positioning and navigation module, slowly pull out the needle body 1, disinfect the puncture site, disassemble the precise positioning and navigation module and clean and disinfect it for the next use.

[0050] It should be noted that after the diagnostic procedure is completed, under the real-time guidance of the precise positioning and navigation module, the medical staff slowly and evenly withdraws the needle 1. During the withdrawal process, the needle 1 is kept stable, avoiding shaking or sudden withdrawal. This can effectively reduce the traction of the needle 1 on the eye tissue, reduce the risk of blood vessel rupture and bleeding, and at the same time reduce the patient's pain and improve the postoperative experience. After the needle is withdrawn, the puncture site is gently pressed with a sterile cotton swab for 3-5 minutes. The pressure should be enough to effectively stop the bleeding without compressing the eyeball. After the bleeding stops, the puncture site is disinfected with iodine solution a second time to further consolidate the sterility.

[0051] Subsequently, the connection between the precision positioning and navigation module and needle body 1 was disassembled, and the precision positioning and navigation module was thoroughly cleaned and disinfected: first, the key components such as the image acquisition lens and positioning sensor of the module were gently wiped with medical alcohol swabs to remove residual tissue fluid, drug residues and dust from the surface, and then it was placed in a high-pressure steam sterilization device for sterilization to ensure thorough disinfection for future use.

[0052] Since eye diagnostic and treatment equipment comes into direct contact with sensitive eye tissues, thorough cleaning and disinfection can not only remove residual contaminants and prevent cross-infection, ensuring the safety of subsequent patient treatment, but also effectively extend the service life of the equipment and reduce the maintenance costs of the equipment and the overall cost of treatment.

[0053] In one embodiment of this application, in step 3, the preset safe distance is 0.1mm-0.2mm. When the distance between the needle body 1 and the vascular network is less than the safe distance, the precise positioning and navigation module issues an audible and visual warning signal.

[0054] It should be noted that the safety distance is set scientifically and reasonably, avoiding vascular damage caused by delayed warnings and preventing excessively frequent warnings from interfering with the operation, thus balancing safety and efficiency. The combined sound and light warning method is more conspicuous than a single warning, and with vibration feedback, it can ensure that medical staff can quickly capture the warning signal during the procedure, avoiding missing the adjustment opportunity due to negligence. The warning response is accurate, and relying on high-definition image analysis and real-time comparison algorithms, it ensures the reliability of the warning signal, reduces false and missed warnings, further improves the safety of puncture, and avoids additional tissue damage caused by frequent adjustments, thus balancing the safety of diagnosis and treatment and patient comfort.

[0055] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] The present application and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present application. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the spirit of the present application, such design should fall within the protection scope of the present application.

Claims

1. A minimally invasive eye acupuncture treatment, characterized in that, The device includes a needle body (1) and a precision positioning and navigation module. The needle body (1) has a diameter of 0.2mm-0.5mm and a blunt oblique cut at the tip. The needle body (1) is connected to a syringe (2). The needle body (1) has a drug channel that communicates with the syringe (2) inside. The precision positioning and navigation module is detachably connected to the needle body (1) to collect images of eye tissues in real time, identify the location of the eye vascular network and locate the treatment site, and guide the needle body (1) to perform precise puncture.

2. The minimally invasive eye acupuncture according to claim 1, characterized in that, The needle body (1) is 4mm-8mm in length, made of medical stainless steel or titanium alloy, and its surface is polished and coated with a biocompatible coating.

3. The minimally invasive eye acupuncture according to claim 1, characterized in that, The precise positioning and navigation module includes an image acquisition unit, a blood vessel recognition unit, a positioning guidance unit, and a display unit. The image acquisition unit is used to acquire high-definition images of the local area of ​​the eye. The blood vessel recognition unit is used to identify the distribution and direction of the blood vessel network in the eye from the acquired images. The positioning guidance unit is used to plan the puncture path and guide the needle body (1) to move in real time according to the coordinates of the treatment site and the distribution of the blood vessel network. The display unit is used to display the eye image, blood vessel network markers, and puncture path.

4. The minimally invasive eye acupuncture according to claim 3, characterized in that, The positioning accuracy of the precision positioning navigation module is ≤10μm, and it can capture the relative position of the needle body (1) and the vascular network in real time. When the needle body (1) approaches the preset safe distance of the vascular network, it issues an early warning signal.

5. The minimally invasive eye acupuncture according to claim 1, characterized in that, The syringe (2) is provided with an anti-slip grip, the surface of which is provided with a textured surface, and the liquid channel is used to deliver diagnostic and therapeutic drugs or to extract eye tissue samples.

6. The minimally invasive eye acupuncture according to claim 3, characterized in that, The image acquisition unit uses a miniature high-definition camera, which can clearly capture the fine vascular structures of the eye, such as the limbal vascular network and ciliary vessels.

7. A method for using minimally invasive eye acupuncture, characterized in that, Includes the following steps: 1) Connect and fix the precision positioning navigation module to the needle body (1), calibrate the precision positioning navigation module to ensure that the positioning accuracy meets the requirements, disinfect the eye treatment area, collect high-definition images of the eye through the image acquisition unit of the precision positioning navigation module, identify the distribution and direction of the eye blood vessel network by the blood vessel recognition unit, determine the coordinates of the treatment site and mark it; 2) The medical staff holds the non-slip grip of the needle body (1) and uses a gentle surgical technique. The fingertips gently grip the non-slip grip and avoid pressing the needle body with force. According to the puncture path presented by the precise positioning navigation module display unit, the needle body (1) is gently aligned with the preset puncture point of the eye. Under the real-time guidance of the positioning guidance unit, the needle body (1) is slowly and evenly advanced with gentle and uniform force. 3) During the procedure, maintain a gentle rhythm and use the precise positioning navigation module to monitor the relative position of the needle (1) and the vascular network in real time. When the needle (1) approaches the vascular network, adjust the puncture direction according to the warning signal. Move slowly and avoid suddenly shaking the needle to ensure that the needle (1) avoids the vascular network and directly hits the treatment site. 4) After reaching the treatment site, administer medication or extract tissue samples slowly using a syringe (2) to avoid excessive flow rate causing discomfort to the eye tissue and complete the treatment procedure; 5) After the diagnosis and treatment are completed, under the guidance of the precise positioning and navigation module, slowly pull out the needle (1), disinfect the puncture site, disassemble the precise positioning and navigation module and clean and disinfect it for the next use.

8. The method of using a minimally invasive eye acupuncture needle according to claim 7, characterized in that, In step 3), the preset safety distance is 0.1mm-0.2mm. When the distance between the needle body (1) and the vascular network is less than this safety distance, the precise positioning and navigation module issues an audible and visual warning signal.

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