A puncture device and system compatible with mixed reality technology

Abstract

This utility model discloses a puncture device and system compatible with mixed reality technology. It includes a base with a puncture needle at one end, a drug supply channel within the base, and a T-shaped three-way valve connecting the tail end of the puncture needle to two drug supply channels. The tail ends of the drug supply channels connect to a drug supply chamber. A needle position marker is located in the middle of the base, and the needle position marker can be either of the following two configurations: A) an asymmetrical pattern; B) three or more spheres. This utility model enables virtual reality mixed display of temporomandibular joint puncture techniques, improving puncture visibility, effectiveness, and success rate.

Description

Technical Field

[0001] This utility model relates to the field of mixed reality technology applications, and in particular to a puncture device and system that can be used in conjunction with mixed reality technology. Background Technology

[0002] Traditional temporomandibular joint puncture techniques have the following problems: (1) Complex anatomical structure: The temporomandibular joint is a complex anatomical structure, including multiple parts such as the glenoid fossa, articular disc, and condyle. The precise location and shape of these parts vary between individuals, increasing the difficulty of puncture. The joint is rich in nerves and blood vessels, and slight carelessness may cause damage and lead to serious complications. (2) Puncture technique challenge: During the puncture, the doctor needs to accurately determine the puncture point and puncture path to ensure that the puncture needle can accurately reach the target area. However, due to the complexity of the joint and individual differences, this operation is extremely challenging and highly dependent on the doctor's clinical experience and professional knowledge. (3) Limitations of image guidance: Although modern imaging technologies (such as CT, MRI, etc.) can provide detailed information on joint structure, it is difficult to rely on these large devices to provide real-time image information guidance during the actual puncture process, and it is also impossible to track and follow the overall movement of the punctured object in real time. In addition, there are related issues such as the use of contrast agents. (4) Limitations of preoperative simulation: Under normal circumstances, it is difficult for doctors to simulate the operation of the patient before the operation and can only perform image analysis. (5) Single-needle single-cavity puncture is too inefficient, the temporomandibular joint is too narrow, and multiple punctures will lead to low efficiency, patient pain, and interference between the puncture needles. In addition, it is not possible to mix and inject two drugs in real time, nor is it possible to implement a one-in-one-out drug delivery method.

[0003] Current mixed reality navigation puncture technology has the following problems: (1) Real scene and virtual model face the problem of rapid registration guidance and real-time follow-up tracking during puncture and during puncture. (2) The standards are not clear, and doctors do not have effective and timely references during and after puncture. Utility Model Content

[0004] The present invention aims to provide a puncture device and system that can be used in conjunction with mixed reality technology, which can realize virtual reality mixed display of temporomandibular joint puncture technology, improve puncture visibility, and reduce the number of punctures.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] This utility model discloses a puncture device that can be used in conjunction with mixed reality technology, including a base, a puncture needle at one end of the base, a drug supply channel inside the base, a T-shaped three-way valve connecting the tail end of the puncture needle to two drug supply channels, the tail end of the drug supply channel connecting to a drug supply chamber, and a needle position mark in the middle of the base, wherein the needle position mark can be any one of the following two configurations:

[0007] A. The needle position markings are asymmetrical patterns;

[0008] B. The needle position is marked with three or more spheres.

[0009] Preferably, the drug delivery chamber is a syringe.

[0010] Preferably, the surface of the puncture needle is marked with graduations.

[0011] Preferably, the needle position is marked as a beacon identification code.

[0012] This utility model also discloses a system using the above-mentioned puncture device, including mixed reality glasses, a processor, a positioning component, and a body surface position marker. The processor is signal-connected to the mixed reality glasses and the positioning component. The positioning component is used to monitor the body surface position marker and the needle position marker. The processor calculates the corresponding spatial coordinates based on the monitoring information provided by the positioning component.

[0013] Preferably, the positioning components include radar, camera, and laser rangefinder.

[0014] The beneficial effects of this utility model are:

[0015] 1. This invention utilizes MR navigation technology to display the real-time position of surgical instruments and the anatomical structure of the surgical area, helping surgeons maintain a clear understanding of critical structures throughout the procedure. This helps avoid accidental damage to important structures such as blood vessels and nerves, improving the safety and accuracy of the surgery.

[0016] 2. This utility model can achieve the superposition of virtual images and actual images, effectively constructing a hybrid display technology for MR-navigated temporomandibular joint puncture units.

[0017] 3. When guiding operators to perform precise punctures, this utility model can also track the position of the puncture needle in real time through the beacon identification code on the puncture needle, compare the actual situation with the preset virtual situation, and provide real-time prompts to the operator on the deviation between the actual situation and the preset situation.

[0018] 4. When guiding operators to perform precise punctures, this utility model enables single-needle injection (e.g., medication), single-needle collection (e.g., extraction of synovial fluid), simultaneous infusion of two medications or raw materials and on-site mixing in the connecting tube, or simultaneous injection and extraction during joint cavity irrigation, thus achieving multiple uses for one needle. Attached Figure Description

[0019] Figure 1 A schematic diagram of a puncture device with asymmetrical needle position markings;

[0020] Figure 2 A schematic diagram of a puncture device in which the needle position is marked by three or more spheres;

[0021] Figure 3 This is a schematic diagram of the system connection using a puncture device.

[0022] In the diagram: 1-Mixed Reality Glasses, 2-Processor, 3-Punch Device, 4-Positioning Component, 5-Surface Position Marker, 6-Punch Needle, 7-Drug Delivery Channel, 8-Drug Delivery Chamber, 9-T-Type Three-Way Valve, 10-Base, 11-Needle Position Marker. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings.

[0024] The "mixed reality glasses" mentioned in this technology are MR (Mixed Reality) glasses. The virtual objects in the mixed reality glasses are in fixed positions. That is, MR can calculate the position of virtual objects and users in real space in real time. This technology has already been maturely used to produce corresponding products in real life, so this technology will not be described in detail here.

[0025] like Figure 1-2 As shown, a puncture device 3 that can be used with mixed reality technology includes a base 10. A puncture needle 6 is provided at one end of the base 10. A drug supply channel 7 is provided inside the base 10. The tail end of the puncture needle 6 is connected to two drug supply channels 7 through a T-type three-way valve 9. The T-type three-way valve 9 can enable two drug supply chambers 8 to supply drugs to the puncture needle 6 individually or simultaneously. The tail end of the drug supply channel 7 is connected to the drug supply chamber 8. A needle position mark 11 is provided in the middle of the base 10. The needle position mark 11 can be any one of the following two settings: A. The needle position mark 11 is an asymmetrical pattern; B. The needle position mark 11 is three or more spheres.

[0026] To accommodate more special drugs, the drug supply chamber 8 is designed for syringes.

[0027] To facilitate further confirmation of the virtual and real matching during use, the surface of the puncture needle 6 is marked with graduations.

[0028] To further improve identifiability, needle position mark 11 is a beacon identification code.

[0029] like Figure 3As shown, a system using the aforementioned puncture device 3 includes mixed reality glasses 1, a processor 2, a positioning component 4, and a body surface position marker 5. The processor 2 is signal-connected to the mixed reality glasses 1 and the positioning component 4. The positioning component 4 is used to monitor the body surface position marker 5 and the needle position marker 11. The processor 2 calculates the corresponding spatial coordinates based on the monitoring information provided by the positioning component 4. The positioning component 4 includes radar, a camera, and a laser rangefinder.

[0030] The method for constructing a virtual image when the needle position mark 11 is an asymmetrical pattern is as follows: the needle position mark 11 is an asymmetrical pattern, such as a beacon identification code. The positioning component 4 is a camera. The camera can capture the asymmetrical pattern. The processor 2 can calculate the position of the puncture device 3 based on the deformation of the asymmetrical pattern image. This is based on the deformation of the asymmetrical pattern captured by the camera relative to the original asymmetrical pattern. Combined with the preset structural information of the puncture device 3, a virtual image of the puncture device 3 is constructed, achieving overlap and correspondence with the real image in the mixed reality glasses 1. This method has been widely used in dental dynamic three-dimensional surgical navigation systems, such as the technology in the patent titled "A Navigation and Positioning Device for Maxillary Sinus Lifting Surgery" with authorization number CN118697503B. Therefore, the relevant calculation method will not be described again in this application.

[0031] The method for constructing a virtual image when the needle position marker 11 consists of three or more spheres is as follows: the needle position marker 11 consists of three or more spheres, the positioning component 4 is a camera, the camera can accurately monitor the sphere image, the processor 2 can calculate the vector coordinates of the sphere relative to the camera based on the size change of the sphere image, and then calculate the position of the puncture device 3 through the vector coordinates of multiple spheres. This method has been widely used in the dental X-Guide dynamic three-dimensional surgical navigation system, so the relevant calculation method will not be described in detail here.

[0032] The surface location marker 5 can be a dot, beacon identification code, or signal transmitting device painted at a specific feature location on the human body surface to ensure that the surface location marker 5 remains relatively stationary with respect to the human skeleton, for example, in the following ways:

[0033] A. By setting surface position markers on the surface of the framework fixed to the teeth 5.

[0034] B. By setting surface position markers on the surface of supports such as headbands that can be fixed to the skull.

[0035] Any one of these methods can achieve a relatively static state between the body surface location marker 5 and the human skull, and then the location can be captured and the corresponding three-dimensional coordinates can be constructed through the positioning component 4, such as motion and facial expression capture technology in film technology.

[0036] In this technology, the puncture device 3 can be standardized, that is, the scale of the puncture needle 6 is unified, so as to statistically analyze the depth of some commonly used puncture points as a reference range. The length of the puncture needle 6 is uniformly designed with different specifications. The scale of the puncture needle 6 of the same specification and the position mark 11 of the needle body are uniformly positioned in the puncture device 3. At the same time, the parameter images corresponding to the virtual puncture needle 6 when different specifications of puncture units are applied are preset in the system of the processor 2.

[0037] In actual use, the main steps include:

[0038] 1. Preliminary preparation: The temporomandibular joint skin puncture surgical area is scanned by a computed tomography CT device to generate medical data imaging, and the three-dimensional model is materialized. The exported MR model is then used to virtually reconstruct the real lesion into a 1:1 scale and directly transparent stereoscopic image, which is then imported into the mixed reality glasses 11. Before the operation, the surgeon performs a preoperative simulation on the three-dimensional model to familiarize himself with and optimize the puncture line.

[0039] 2. Affix surface location markers 5 to characteristic points in the patient's temporomandibular joint region, and determine the information features of the puncture device 3 used in the processor 2;

[0040] 3. The recognition device or positioning component 4 of the mixed reality glasses 1 recognizes the surface position markers 5 around the temporomandibular joint and transmits the information of the surface position markers 5 to the processor 2. The processor 2 then performs superimposed registration between the actual three-dimensional model and the physical joint based on the information of the surface position markers 5.

[0041] 4. During the puncture process, the predetermined route, puncture device 3 and surrounding important tissues are displayed in real time on the mixed reality glasses 1, so that the operator can know the tissue conditions around the puncture needle 6 and accurately insert the needle. At the same time, by comparing the scale on the actual puncture needle 6 where it rests on the epidermis with the scale on the virtual puncture needle 6 where it rests on the human tissue epidermis in the mixed reality glasses 1, it is verified whether the puncture system is registered with the mixed reality navigation.

[0042] During the puncture, the real-time position of the puncture device 3 is compared with the preset ideal position by the needle position mark 11, and the operator is prompted in real time to indicate the deviation between the actual situation and the preset position. The doctor can adjust the puncture route accordingly.

[0043] 5. After reaching the target puncture point, the operator records the actual puncture needle 6 scale and compares it with the reference range. At the same time, the operator should also record the virtual projection of the puncture needle 6 scale at this time and calculate the accuracy for subsequent optimization and improvement.

[0044] 6. After the puncture is completed, the two drug supply chambers 8 of the puncture device 3 can be used to achieve single-needle injection (such as drug), single-needle collection (such as extracting joint synovial fluid), or simultaneous infusion of two drugs or raw materials and on-site mixing in the connecting tube, or simultaneous injection and aspiration during joint cavity irrigation, etc., to achieve multiple uses of one needle.

[0045] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A puncture device that can be fitted with mixed reality technology, characterized by Includes a base (10), one end of which is provided with a puncture needle (6), and a drug supply channel (7) is provided inside the base (10). The tail end of the puncture needle (6) is connected to two drug supply channels (7) through a T-type three-way valve (9). The tail end of the drug supply channel (7) is connected to a drug supply chamber (8). A needle position mark (11) is provided in the middle of the base (10). The needle position mark (11) can be any one of the following two settings: A. The needle position mark (11) is an asymmetrical pattern; B. The needle position mark (11) consists of three or more spheres.

2. The lancing device of claim 1, wherein: The drug supply chamber (8) is a syringe.

3. The lancing device of claim 1, wherein: The surface of the puncture needle (6) is marked with graduations.

4. The lancing device of claim 1, wherein: The needle position mark (11) is a beacon identification code.

5. A system for using the puncturing device according to any one of claims 1-4, characterized in that: It includes mixed reality glasses (1), processor (2), positioning component (4), and body surface position marker (5). The processor (2) is connected to the mixed reality glasses (1) and positioning component (4). The positioning component (4) is used to monitor the body surface position marker (5) and needle position marker (11). The processor (2) calculates the corresponding spatial coordinates based on the monitoring information provided by the positioning component (4).

6. The system of claim 5, wherein: The positioning component (4) includes radar, camera, and laser rangefinder.

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