Face three-dimensional image display system

Abstract

The present invention relates to a facial three-dimensional image display system comprising a guide part for guiding an injection device to inject at a correct angle at a correct position, the guide part comprising a detection unit provided with a visual acquisition unit, a control unit and an image guide unit, the visual acquisition unit comprising a three-dimensional module, the control unit can generate a three-dimensional image of injection tissue based on data acquired by the three-dimensional module, defines a second-stage injectable area based on a blood vessel projection image provided by the visual acquisition unit, and controls the image guide unit to project a green image to a corresponding position of the face; when the protruding height of the shape of the face three-dimensional image exceeds a preset range, the control unit controls the image guiding unit to generate a flickering yellow image at the abnormal protruding position so as to prompt medical staff not to pull out the needle and stop the injection behavior. The blood vessel imaging technology with colors as priority guidance can provide correct visual guidance for medical staff, and the medical staff is prevented from being interfered by disordered blood vessels.

Description

[0001] The original basis of this divisional application is a patent application with the application number 2023103676496, the application date of April 7, 2023, and the invention title of "An Injection System". Technical Field

[0002] The present invention relates to the technical field of medical machinery, and particularly to a three-dimensional facial image display system. Background Art

[0003] Drugs are often dispensed using cartridges, such as glass syringes, which have a barrel with a needle at one end and a plunger that is slidably inserted into the other end and connected to a rubber stopper. Such cartridges are often referred to as "pre-filled syringes" because, compared to conventional syringes, they can contain a specific dose or volume of drug when they are initially provided, while conventional syringes are equipped empty and need to be filled by the user before injection.

[0004] Stem cell transplantation can currently be used for skin aging in clinical practice. For example, adipose-derived mesenchymal stem cells (ADSCs) in adipose tissue play a crucial role in maintaining the survival and renewal of adipose tissue.

[0005] Currently, stem cells for treatment or facial restoration can enter the human body through intramuscular injection, puncture injection, or intravenous injection. For example, the current stem cell new drug Stempeucel is used for injection into the lower limbs to treat severe limb ischemia caused by Buerger's disease or atherosclerotic peripheral arterial disease. Stem cells have the function of repairing muscle damage. Currently, the treatment method of achieving muscle damage repair or facial filling through intramuscular injection has been applied. Similar to liquid medicine injection, stem cell transplantation also requires injection equipment and is transplanted through methods such as intravenous injection and lumbar puncture injection.

[0006] Chinese Patent with the publication number CN105586248B discloses a special stem cell rapid extraction device, which is mainly used in a clean environment in the operating room. The propulsion device reciprocates adipose tissue in the syringe between two syringes. After all the finally obtained tissue enters the collection syringe, the obtained stem cells can be injected into the human body using the collection syringe. A small enclosed space is formed between the three syringes, and the adipose tissue has very little contact with the outside world, greatly reducing the risk of contamination of the extracted stem cells.

[0007] During the actual injection process, in addition to anti-contamination, injecting to the correct position is also the main influencing factor for the correct functioning of stem cell transplantation.

[0008] A Chinese patent with the publication number CN105477769B discloses a stem cell introduction device. The introduction device includes a hollow outer sleeve, a hollow needle core, and a hollow catheter. A cursor that can move up and down along one side of the outer wall of the outer sleeve is provided on the outer sleeve. On the other side of the outer wall of the outer sleeve, digital scale marks protruding from the outer wall surface are provided. When the cursor moves to the digital scale marks, rotate the cursor to fix the cursor between or on the digital scale marks. The head end of the needle core is provided with a spike portion. One end of the tail end of the needle core is connected to the first syringe interface. When the needle core is completely inserted into the hollow portion of the outer sleeve, the spike portion exposes two millimeters. The proximal end of the catheter is connected to the other end of the first syringe interface, and the distal end of the catheter is connected to the second syringe interface.

[0009] Compared with the prior art where the judgment of the needle injection position depends on the work experience and subjective judgment of the experimenter, the present invention proposes an injection system that can provide a hierarchical judgment basis for the injection position for the experimenter based on the guiding part provided by the system, improving the injection efficiency of the experimenter.

[0010] In addition, on the one hand, there are differences in the understanding of those skilled in the art; on the other hand, when the applicant made the present invention, a large number of documents and patents were studied, but due to space limitations, all details and content were not listed in detail. However, this does not mean that the present invention does not possess the features of these prior arts. On the contrary, the present invention already possesses all the features of the prior arts, and the applicant reserves the right to add relevant prior arts in the background art. Summary of the Invention

[0011] Currently, stem cells are mainly clinically applied in aspects such as wound injury repair, facial repair, bone and joint injury repair, and tumor suppression. And the frontier scientific research on stem cell transplantation has been carried out for several years and achieved beneficial results.

[0012] The diameter of stem cells is between 10 and 20 μm, which is much larger than the molecular volume of ordinary injection solutions. There is a rich variety of stem cells, and different types of stem cells will be used in combination for different diseases. For example, human bone marrow mesenchymal stem cells will be used for intra-articular injection for the targeted repair of osteoarthritis. Compared with the intravenous injection of solutions, due to the particularity of the volume and type of stem cells, stem cells have higher requirements for injection operations and flow monitoring.

[0013] In view of the deficiencies of the prior art, the present invention provides an injection system, particularly a system suitable for stem cell injection. The injection system includes an injection device and a guiding portion capable of guiding the injection device to inject at the correct position and at the correct angle. The guiding portion includes a detection unit, a control unit, and an image guiding unit. When the detection unit detects that the injection device enters a preset first-level injectable area, the image guiding unit activates the image guiding function; when the detection unit detects that the injection device enters a preset second-level injectable area, the image guiding unit generates a preset needle insertion position in the image provided under the image guiding function, wherein the first-level injectable area is larger than the second-level injectable area.

[0014] According to a preferred embodiment, the thickness and position of blood vessels can be used as the classification criteria for the second-level injectable area. When screening blood vessels in the control center, blood vessels with a large diameter and located in an area convenient for injection are optimal. When the first-level injectable area is the triceps brachii, the control unit can select blood vessels in good condition based on the blood vessel distribution image of the patient's triceps brachii, and control the blood vessel imaging unit to display the position of the blood vessels in this area, and display the fluoroscopic image of the blood vessels at the actual position of the blood vessels on the patient's upper arm, thereby reducing the time for medical staff to search for blood vessels. Abandoning a blood vessel means that the medical staff holds the needle and moves to other positions from this blood vessel based on other factors (such as difficult angle adjustment, etc.). When the blood vessel is abandoned, the control center will generate the position of another blood vessel. Preferably, the system can generate blood vessel images of at least three colors in the first-level injectable area based on the blood vessel status, and each color represents the priority level of the blood vessel status.

[0015] Advantages of this technical solution:

[0016] (1) In actual injection, the injection efficiency of medical staff often depends on their work experience and mentality, and it is very easy to have problems such as incorrect selection of the injection position or incorrect operation. On the one hand, such problems will cause the skin of the patient's injection position to turn blue and purple, and reduce the available injection positions; on the other hand, it will also cause tension in the doctor-patient relationship, resulting in arguments between medical staff and patients due to repeated injection problems. The injection device provided by the present invention can provide guidance for the injectable area for medical staff. Due to the mechanical assistance, patients can have more trust in novice medical staff, and medical staff can complete the injection behavior with less effort.

[0017] (2) When injecting, the blood vessel imaging in the prior art mainly provides medical staff with the blood vessel images of a certain area. Both the intricate large blood vessels and tiny capillaries will be displayed, which may cause visual illusions for medical staff. Even if medical staff select a suitable large blood vessel, they may still inject at the wrong position due to visual illusions. The blood vessel imaging technology guided by color priority provided in this application can provide correct visual guidance for medical staff and prevent them from being interfered by the messy blood vessels.

[0018] According to a preferred embodiment, the detection unit includes a thermal imaging unit and a visual acquisition unit. Among them, the control unit overlaps the image captured by the visual acquisition unit and the image captured by the thermal imaging unit to confirm the first-level injectable area of the injection device.

[0019] According to a preferred embodiment, the detection unit further includes a blood vessel imaging unit. Among them, the control unit generates a second-level injectable area within the first-level injectable area in response to the vein data within the first-level injectable area transmitted by the blood vessel imaging unit.

[0020] When stem cells are used for facial filling, due to the rich blood vessel distribution on the face and the obstruction of facial features, the selection of injection positions on the face is restricted. In particular, when facial filling is performed, the facial shape will change with the stem cell filling. To meet the requirements of facial correction, medical staff often need to inject and fill stem cells at multiple points on the face. The injection operation will leave temporary wounds on the face. When wounds appear densely at a certain position on the face in a short period of time, it is easy to increase the risk of facial infection. Frequent insertion of needles into the same position on the face will stimulate and damage the epidermis, destroy the skin's self-protection barrier, and at the same time trigger subtle traumatic inflammation. Improper nursing will cause skin needle hole infection. However, when medical staff inject for facial filling to users in the prior art, they can often only select the needle insertion position based on their own experience and simple black marking lines drawn on the face. In the field of medical aesthetics, facial filling based on stem cell injection requires many and dense needle insertions, and the volume of stem cells injected per needle also needs to be evaluated during actual operation. Medical staff can only "grope" for injection by relying on experience and the feedback of injection effects. This will also lead to poor medical aesthetic effects, and the facial adjustment effect does not match the user's expectations. Especially when the needle is inserted at the wrong position and the stem cells used for filling are injected into the arteries or tiny blood vessels on the face, not only will the facial adjustment be ineffective, but when the stem cells enter other parts of the body along the blood vessels, it will also cause acute diseases such as embolism to the user.

[0021] Based on the adjusted area divided by the medical staff terminal, the control unit can generate a second-level injectable area suitable for the current facial morphology according to the patient's facial morphology. For example, when the medical staff selects to perform nose shaping, the image guidance unit will only project the second-level injectable area on the nose to display the blood vessels distributed on the nose, such as the large artery at the nasal base.

[0022] During the injection process, the control unit can re-adjust and generate a second-level injectable area suitable for the current facial morphology according to the change of the patient's facial morphology. Preferably, the control unit can transmit the regenerated second-level injectable area through the image guidance unit into the corresponding first-level injectable area on the face based on the release of the needle insertion state of the injection device.

[0023] After avoiding the problem of injecting into blood vessels, there are differences in the ability of different facial muscle tissues to absorb stem cells. When the muscle tissues around the injection position selected by the medical staff are difficult to quickly absorb stem cells, on the one hand, continuing the injection is difficult to achieve the effect that the user expects to fill the facial area to plumpness, and may even deform the facial area; on the other hand, when the absorption speed is much lower than the injection speed, the stem cells will accumulate at this position until the muscle tissues cannot absorb them during the medical aesthetics process (the protrusions generated by the accumulation exist on the face for a short time of several days, and even up to several months). If only observed with the naked eye, it cannot be detected in the initial stage (the injection position is not suitable for touching by hand due to dense wounds). Since the flow rate of stem cells in human blood vessels or under the skin is lower than that of the liquid medicine, even if the medical staff injects slowly, there is still a situation where the stem cells at this position cannot be absorbed in time. The situation where they cannot be absorbed in time mainly has two possibilities. One is that the needle insertion position or angle is incorrect, resulting in the stem cells entering this position unable to flow or be evenly distributed to the connective tissue; the other is that the flow rate of stem cells at this position is too slow, requiring a flow time several times lower than the injection speed.

[0024] According to a preferred embodiment, the visual acquisition unit includes a three-dimensional module. Among them, the control unit can generate a three-dimensional image of the injection tissue based on the data collected by the three-dimensional module to determine the height difference of the protrusion at the injection position during the injection process. By superimposing and comparing the three-dimensional images at different time periods during the injection process, the control unit can determine whether there is a problem of stem cell aggregation under the skin at the injection position.

[0025] When the convex height of the three-dimensional image of the face in the second-level injectable area exceeds α, the control unit controls the image guiding unit to generate an image with a warning effect at the abnormal convex position. On the one hand, the change of the image guiding unit provides an alarm for the medical staff; on the other hand, the change of the image guiding unit can directly display the deformed facial morphology for the medical staff, so that the medical staff can timely adjust the needle insertion position and angle to prevent the overstacking of stem cells at the facial position during facial filling. Preferably, the fourth color of the image with a warning effect generated at the abnormal convex position can be different from the three colors of the image used to guide the medical staff to insert the needle.

[0026] During the injection process, based on the slow flow rate of stem cells in the subcutaneous blood vessels of the face or other organs, the abnormal convex height generated by the face or other organs may also exceed β. When the convex height exceeds β, the image guiding unit can generate a fifth different color. The control unit can not change the morphology of the image generated by the image guiding unit except for the color. The fifth color is used to prompt the medical staff to slow down the injection speed or stop the injection but not pull out the needle, so as to provide a buffer time for the stem cells to flow from the blood vessels into the human body or for the stem cells to flow under the skin. Preferably, α is greater than β.

[0027] When the abnormal convex generated by the face or other organs drops to γ, the control unit can control the image guiding unit to resume providing the medical staff with the image for guiding the medical staff to insert the needle. Preferably, γ is less than β.

[0028] In the actual injection process, there are situations of repeated injection or supplementary injection of stem cells. The blood vessel distribution of an individual is fixed and does not change. Based on this, the system can record the injection situation of the individual and reduce the recommended priority of the position with injection problems based on the historical record. For example, when stem cells are used as facial filling materials, the stem cells usually gradually disappear with the body's metabolism after filling the face. If the body's metabolic capacity is relatively fast, it usually leads to a shorter maintenance time, about three days. If the metabolic capacity is relatively slow, it may lead to a longer maintenance time, about five years. Therefore, for users who need to maintain the facial morphology for a long time, multiple stem cell injections on the face are necessary.

[0029] The injection system can record all the skin conditions of the user after injection, such as bulges, and based on the pre-stored structural model of facial blood vessels or other tissues, superimpose the detection records of the existing injection situations, and simulate and recommend the range of the best injection points for the next position. For example, there should be positions with faster absorption near the positions with slow absorption, and the positions where the stem cells do not absorb or the positions within a 1 cm diameter range of these positions on the historical positions are no longer recommended as injection positions.

[0030] According to a preferred embodiment, based on the confirmation of the medical staff's terminal, the control unit can retrieve the facial injection history data and / or facial structure model related to the user from the historical database. When the control unit generates a three-dimensional image of the face based on the facial data collected by the visual acquisition unit, and provides injection guidance for the medical staff, the facial position corresponding to the fourth color projection in the facial injection history data is excluded from the determination result of the injectable area.

[0031] By retrieving the historical database, the system can obtain the user's past skin conditions and avoid injecting at positions where stem cells could not be absorbed or homogenized. Referring to the historical database can reduce the number of ineffective attempts of the injection system, lower the accident rate, and avoid damage to the skin caused by repeated ineffective injections. Aesthetic injection is a related process. The quality of one injection position affects the selection of surrounding injection positions and the final presentation of the aesthetic effect. In the existing aesthetic injection process, the proportion of ineffective exploratory injections is too high, which is not conducive to presenting a fast and accurate aesthetic effect. The injection system proposed in this application can combine historical data and the current facial state of the user to present the medical staff with selectable areas with good injection effects. By collecting the user's historical injection areas and historical problematic injection areas, and combining with the current non-vascular areas of the user, safe injection areas can be screened for the medical staff. At the same time, during the injection process, based on the monitoring of the user's facial state, it can also give an early warning to the medical staff when they select an inappropriate injection area, preventing the medical staff from injecting a large amount of stem cells at this position and causing a prominent protrusion that cannot be absorbed by the face in a short time (such as within the time of the aesthetic process). Through the ectopic instant high-precision automatic detection during the injection process, this system automatically assists the operator in analyzing the micro-injection effect of each point according to a predetermined analysis method, quickly transmits the data back to the display area, and at the same time, according to the hierarchical visualization display of the results, enables the operator to very intuitively obtain the position and injection effect of the already injected points (displayed by color grading). Further, by using the preset physiological structure data (universal preset physiological structure data of the human face or the individual's facial physiological structure pre-checked for the individual being operated on), combined with the detection and evaluation of the performance of the already injected area, it automatically generates recommended injection areas, enabling the operator to quickly find better or optimal needle insertion points that meet the aesthetic expectations.

[0032] Meanwhile, the injection process is divided into three stages, including the first injection stage, the second injection stage, and the third injection stage. When in the first injection stage, the injection syringe has not entered the human body, and the medical staff holds the injection syringe to find the injectable position and the injectable angle. When in the second injection stage, the medical staff holds the injection syringe and inserts it into the human body. When in the third injection stage, based on the three medical procedures of injection, infusion, and puncture, there are three situations. In the third injection stage of injection, the medical staff pushes the syringe by hand and withdraws the syringe after the liquid is injected into the body. In the third injection stage of infusion, after the medical staff fixes the position of the syringe, the patient waits alone for the end of the infusion process. The third injection stage of puncture includes the drainage of collecting samples, i.e., the stagnation of the puncture needle and the withdrawal of the puncture needle.

[0033] This system can also be applicable to the monitoring of intravenous injection. When the needle body leaves the first-level injectable area or the second-level injectable area, the system can promptly send an alarm and a prompt to the medical staff or the patient.

[0034] According to a preferred embodiment, the system can also be provided with a third-level injectable area. When the needle body enters the vein and stabilizes within the vein, the system can set the contour of this position as the third-level injectable area based on the position of the needle body. When the system monitors an error between the needle body of the injection device and the third-level injectable area, the system can issue an alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a cross-sectional schematic view of an injection device according to a preferred embodiment provided by the present invention;

[0036] Figure 2 is a schematic view of a first component according to a preferred embodiment provided by the present invention;

[0037] Figure 3 is a schematic view of a second component according to a preferred embodiment provided by the present invention;

[0038] Figure 4 is a schematic view of the wiring area for the tube body to be received according to the present invention;

[0039] Figure 5 is an overall schematic view according to a preferred embodiment provided by the present invention;

[0040] Figure 6 is a schematic structural view of the visual acquisition unit provided by the present invention.

[0041] LIST OF REFERENCE NUMERALS

[0042] 100: First component; 110: Wiring area; 120: Joining piece; 130: Retaining piece; 131: Concave inlet; 140: Partitioning piece; 200: Second component; 210: First needle body; 220: Protruding piece; 230: Release part; 240: Tube body; 250: First protective piece; 300: Insertion piece; 400: Introduction piece; 500: Guiding element; 600: Three-dimensional image sensor; 610: Light source; 620: Beam splitting element; 630: Camera; 640: Light beam. Detailed implementation

[0043] The following is a detailed description with reference to the accompanying drawings.

[0044] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Embodiment 1

[0046] This embodiment provides a system for evaluating the state of stem cell injection based on three-dimensional facial images. This system can scan the patient's face and compare the changing face of the patient in real time to find out whether there is a problem of adipose stem cell accumulation at the injection site, and provide a judgment basis for medical staff to wait for the subcutaneous homogenization of adipose stem cells or to withdraw the needle and change the injection site based on the degree of adipose stem cell accumulation.

[0047] The injector hopes to adjust the facial shape by injecting adipose stem cells. This system can start working when medical staff evaluate the injector's face and perform operations on their face.

[0048] The visual acquisition unit can perform three-dimensional scanning on the face of the injector to obtain the three-dimensional point cloud and image data of the face. Preferably, the visual acquisition unit includes a three-dimensional scanner. By using the local descriptor method, the feature points of the facial features are extracted. For example, the feature points of the nose are the nasion, the bridge of the nose point, the nasal septum, the tip of the nose point, and the alar point. Preferably, the visual acquisition unit can include a high-precision three-dimensional scanner, such as the facial scanning system of Jing FC BodyScan, to obtain high-precision facial information of the user through three-dimensional laser point cloud scanning technology.

[0049] The person to be injected hopes to perform adipose stem cell filling on the face to adjust the facial shape.

[0050] When starting the injection, the control unit determines the first-level injectable area based on the initial settings of the medical staff. The first-level injectable area is the facial position that needs to be filled with adipose stem cells after being evaluated by the medical staff.

[0051] The control unit defines the second-level injectable area based on the vascular projection image provided by the visual acquisition unit, and controls the image guiding unit to project a green image to the corresponding position on the face. That is, the control unit excludes the vascular position and shows the vascular position in the projected green image for the medical staff to inject adipose stem cells. Preferably, the visual acquisition unit includes an infrared vascular imaging component. The image guiding unit includes a projection component. The infrared vascular imaging component and the projection component together form an infrared vascular imager.

[0052] The control unit can generate a new three-dimensional facial image per second, and superimpose the newly generated three-dimensional facial image with the three-dimensional facial image closest to it in time, so as to confirm whether there is a bulge beyond the preset range on the face of the second-level injectable area.

[0053] Preferably, when the newly generated three-dimensional facial image coincides with the three-dimensional facial image closest to it in time, the control unit can record the shape of the newly generated three-dimensional facial image at the corresponding position that does not match the shape of the three-dimensional facial image closest to it in time, and use the corresponding position of this shape in the three-dimensional facial image closest to it in time as the base point to calibrate the distance from the base point to the highest point of this shape. This distance is the bulge height.

[0054] When the height of the protrusion exceeds 2mm, the control unit controls the image guidance unit to generate a flashing yellow image at the abnormal protrusion position to prompt the medical staff to stop the injection without removing the needle. When the height of the protrusion is lower than 1mm, the image returns to normal and the medical staff can continue the injection. When the flashing yellow image lasts longer than the waiting time assessed by the medical staff, the medical staff can remove the needle by themselves. Based on the needle removal behavior captured by the visual acquisition unit, the control unit controls the image guidance unit to generate a green image of the second-level injectable area again. At this time, the second-level injectable area does not include the circular area with a radius of 3mm centered on the lower needle position where the problem occurred last time.

[0055] Due to the difference in injection speed among medical staff, when the tissue at this facial position cannot absorb or homogenize the fat stem cells, the speed of bulge generation will increase and the height of the bulge will exceed 3mm within 1 second. When the bulge height exceeds 3mm, the control unit controls the image guidance unit to generate a flashing red image for 10 seconds, and turns off the projection of the second-level injectable area of the image guidance unit after 10 seconds. Medical staff can restart the system based on terminal operation.

[0056] Example 2

[0057] This embodiment provides an injection device suitable for facial injection. The injection device provided in this embodiment is suitable for stem cell injection. The injection device provided by the present invention is suitable for injection into bone joint cavity. The injection device provided by the present invention is suitable for stem cell injection for cerebral hemorrhage. The injection device provided by the present invention can be used for injection into irregularly shaped organs of the human body.

[0058] Irregular organs can refer to the human ankle joint, head, face, femoral joint or other organs with non-flat structures that have protrusions or curves.

[0059] Based on the vascular image projected on the human body surface, the use of traditional handheld injections will block the vertical light on the one hand; on the other hand, because the blood vessels in the second-level injectable area are precise and narrow, when holding the syringe and inserting the needle directly, the medical staff may have problems such as hand shaking, and the injection position may deviate from the projected selected position. When performing stem cell filling, especially facial stem cell filling to adjust the facial shape, the choice of filling position has an important impact on the state of stem cells in the face and the adjusted facial shape. The wrong position selection will cause the facial adjustment to be inconsistent or even not meet the user's requirements, and will also cause the stem cells to be injected into the non-muscle gap by mistake, which can seriously lead to problems such as dermal infection.

[0060] The injection device provided in this embodiment can be roughly parallel to the human body surface. When selecting a position, the medical staff can translate the injection device sleeved on the bracket to the selected position and then stop, and wait for the medical staff to insert the needle after the medical staff is ready. During this period, the medical staff's hand can not always control the injection device in a holding posture. At the same time, the injection device of this embodiment adopts an external connection pipeline to provide stem cells to the needle. For the situation where multiple points are required for injection, especially the multi-point injection of facial adjustment, the injection volume of each point is uncertain. Before the injection, the medical staff cannot accurately estimate the specific volume of stem cell solution required for this facial filling to achieve the best effect. The prior art adopts a one-time injection method, and each syringe is filled with a fixed volume of stem cells, which not only causes the problem of waste in use, but also increases the cost of facial filling. On the one hand, the injection device can avoid the problem of contamination during the transmission process of the stem cell solution input through the pipeline; on the other hand, it can also enable medical staff to take it when needed and shut it down when not needed, without the problem of opening the syringe once and using the amount filled in the syringe and throwing away the excess.

[0061] The injection system includes an injection device. The injection device includes a first component 100 and a second component 200. The first component 100 is provided with a wiring area 110 for holding a tubular body having a certain length. The wiring area 110 is used to hold a portion of a tubular body 240 having a certain length. The tubular body 240 has a first end connected to the second component 200. The first component 100 also includes a retaining member 130 and an inserting member 300. The retaining member 130 is provided with a recessed entrance 131 facing the skin surface. The second component 200 is connected to the first component 100 in a detachable manner. The second component 200 includes a first needle body 210. The first needle body 210 is fluidically connected to the first end of the tubular body 240 so that the injection liquid disposed in the tubular body can flow out from the first needle body 210.

[0062] According to a preferred embodiment, the insert 300 is disposed in the recess 131 of the holder 130. The insert 300 can pivot relative to the first member 100 in the recess 131 of the holder 130.

[0063] The wiring area 110 is used to manage the tube body 240 of a certain length. The tube body 240 has a certain length. The tube body 240 is wound around the injection device and put into the wiring area 110 to avoid the tube body 240 from being tangled and twisted due to the certain length of the tube body 240. The retainer 130 is provided with a recessed opening 131. When the injection device is connected to a certain part of the user's body, if the injection device moves on the user's skin, the recessed opening 131 provides sufficient space for the insert 300, so that the insert 300 can be prevented from being cut or folded.

[0064] Preferably, the second member 200 is provided with a protruding member 220. Ribs are provided on the protruding member 220.

[0065] The second member 200 includes a first protective member 250. The first protective member 250 is disposed above the first needle body 210. The concave inlet 131 is conical.

[0066] Preferably, the concave inlet 131 contains a drug.

[0067] Preferably, the injection device is further provided with a tube connector. The tube connector has a specific length.

[0068] Preferably, the first member 100 is provided with a holding area for facilitating hand gripping. When the first member 100 and the second member 200 are connected or separated, the hand of the operator is placed in the holding area to ensure the stability of finger gripping during operation, and to prevent the first member 100 or the second member 200 from slipping due to unstable gripping during the process of connecting or separating the first member 100 and the second member 200.

[0069] Preferably, the injection device is provided with a partition member that is at least partially restricted within the first member 100 by a holding member.

[0070] As Figure 1 and Figure 5 The injection device shown includes a first member 100, a second member 200, a tube 240, a partition member 140, a holding member 130, an insert member 300, and a guiding member 400. The second member 200 includes a first needle body 210. When the second member 200 comes into contact with the first member 100, the first needle body 210 is in fluid communication with the insert member 300 by piercing the partition member 140. Preferably, the injection device is further provided with a guiding element 500 for guiding the guiding member 400. The guiding element 500 is funnel-shaped.

[0071] Preferably, the second member 200 further includes a first protective member. The first protective member can reduce the risk of the operator or user being stabbed by the first needle body 210 during the use of the injection device. At the same time, the first protective member can reduce the risk of the first needle body 210 being contaminated. If the first needle body 210 is contaminated, the flowing liquid will also be contaminated, affecting the health of the user.

[0072] Preferably, the separator 140, the holder 130, the introducer 400, and the guiding element 500 are disposed in the first member 100 in a press - fit manner. Preferably, the holder 130 is press - fitted into the first member 100. Preferably, the holder 130 can be connected to the first member 100 by welding. Preferably, the holder 130 is disposed in the first member 100 through the protrusion 220. Preferably, the holder 130 can be used for other adapted devices. Preferably, the holder 130 and the insert 300 are made of the same material and can be attached by thermal bonding, welding, or other means. Preferably, the holder 130 and the insert 300 are made of the same material and are made into a single part. Preferably, the holder 130 includes the guiding element 500, and the guiding element 500 can guide the introducer 400 through the separator 140 and into the insert 300. Preferably, the guiding element 500 can be of any reasonable shape and size. Preferably, the guiding element 500 and the holder 130 can be made of different materials. Preferably, the insert 300 can be press - fitted into the holder 130, and the guiding element 500 can be press - fitted into the holder 130 to simplify the manufacturing process and reduce costs.

[0073] The first member 100 is provided with a wiring area 110 for holding a tube body 240 of a certain length, as Figure 2 and Figure 4 shown. The wiring area 110 is used to manage the tube body 240 of a certain length. The tube body 240 has a certain length. The tube body 240 is wound around the periphery of the injection device and received in the wiring area 110. When the tube body 240 is pulled in a certain direction, since the tube body 240 of a certain length is received in the wiring area 110, the situation of kinking of the tube body 240 can be reduced. If the tube body 240 is not received in the wiring area 110, when the tube body 240 is pulled in a certain direction, the tube body 240 through which the liquid flows is prone to kinking, and the internal space of the tube body 240 is squeezed, resulting in blockage inside the tube body 240 and making the liquid therein unable to flow.

[0074] Preferably, the second member 200 is provided with the wiring area 110. Preferably, both the first member 100 and the second member 200 are provided with the wiring area 110.

[0075] Preferably, the tube body 240 of a certain length can be clamped or restricted in other ways by being wound around the injection device. Preferably, the wiring area 110 is disposed in any reasonable direction of the injection device. When the tube body 240 is wound around the periphery of the injection device and held in the wiring area 110, the situation of kinking of the tube body 240 of a certain length will not occur. In addition, winding the tube body 240 around the periphery of the injection device can change the direction of the tube body 240. Preferably, the tube body 240 can travel under the injection device to change the direction.

[0076] As Figure 1 shown, the holder 130 of the first member 100 is provided with a concave inlet 131. Preferably, the concave inlet 131 is provided in a conical shape capable of providing sufficient space for the insert 300, such that the insert 300 can move relative to the first member 100 when the position of the first member 100 changes on the user's skin surface. Preferably, the concave inlet 131 can be provided in any reasonable shape. For example, the concave inlet 131 can be circular. Preferably, the concave inlet 131 can be provided in any reasonable size. If the holder 130 is not provided with the concave inlet 131, when the injection device is connected to a certain part of the user's body and the injection device moves on the user's skin, since there is no extra space around the insert 300, the insert 300 may be cut or folded. The concave inlet 131 provided on the holder 130 can provide sufficient space around the insert 300, such that the pivot point of the insert 300 is away from the user's skin. When the injection device is connected to a certain part of the user's body, if the injection device moves on the user's skin, since the concave inlet 131 provides sufficient space for the insert 300, the situation where the insert 300 is cut or folded can be avoided.

[0077] Preferably, the insert 300 is provided in a conical structure. Preferably, the insert 300 can be provided in other reasonable shapes. For example, the insert 300 can be provided in a funnel shape. Preferably, the insert 300 can be attached to the holder 130.

[0078] The second member 200 is detachably connected to the first member 100. As Figures 2-3As shown, the second member 200 is provided with a protruding piece 220, and a rib is provided on the protruding piece 220. The first member 100 is provided with a coupling member 120 for receiving the protruding piece 220. Preferably, the protruding piece 220 can be engaged or locked with the coupling member in a sliding manner. Under the condition that the protruding piece 220 and the coupling member are engaged or locked, the second member 200 is combined or interfered with the first member 100. The second member 200 is also provided with a release portion 230 that can release the combined state or the adapted state of the first member 100 and the second member 200. Preferably, the release portion 230 is provided on the second member 200 corresponding to the protruding piece 220. When the first member 100 and the second member 200 are combined or interfered with, the release portion 230 is pressed toward each other to release the protruding piece 220 from the coupling member 120, and the state of the protruding piece 220 and the coupling member being engaged or locked is released, thereby separating the first member 100 and the second member 200. When the first component 100 and the second component 200 are in a combined or interference fit, if the release portion 230 is not pressed toward each other, the protrusion 220 and the engagement member 120 will continue to maintain an engaged or locked state, so that the first component 100 and the second component 200 remain in a combined or adapted state.

[0079] Preferably, the release portion 230 is provided with a textured surface to facilitate pressing or grasping by hand. Preferably, at least one release portion 230 is provided on the second member 200 .

[0080] Preferably, the rib on the protruding piece 220 is configured to be protruding or recessed relative to the surface of the second member 200. Preferably, at least one rib is provided on the second member 200.

[0081] The second member 200 is connected to the first member 100 in a detachable manner. When the protruding piece 220 on the second member 200 slides into the engaging piece 120 of the first member 100 and reaches a snap-on or locked position, the second member 200 is combined or interfered with the first member 100. The process of combining the second member 200 with the first member 100 enables the first needle 210 to pierce the partition 140 of the first member 100, so that the first needle 210 is in fluid communication with the insert 300, and the first needle 210 is in fluid communication with the first end of the tube 240. When the second end of the tube 240 is connected to a fluid source, the fluid source can be an infusion pump and a reservoir therein, the first needle 210 is in fluid communication with the tube 240, and the first needle 210 is in fluid communication with the insert 300, so that the liquid in the fluid source flows out through the tube 240 and can flow through the insert 300 into the user's body.

[0082] The first member 100 is provided with a holding area that facilitates the grasping of the hand. Preferably, the holding area can be set as a recessed portion on the first member 100. When the first member 100 and the second member 200 are connected or separated, the hand of the operator is placed in the holding area to ensure the stability of the finger grasping during operation, and to prevent the first member 100 or the second member 200 from slipping due to unstable grasping during the process of connecting or separating the first member 100 and the second member 200. At the same time, the setting of the holding area enables the operator to apply force to the first member 100 better. Preferably, the rear edge of the first member 100 is recessed inward to form a holding area for hand grasping.

[0083] Preferably, the first member 100 is provided with an adhesive layer on the bottom surface in contact with the skin, which can maintain the first member 100 on the skin surface. Preferably, a covering layer is provided on the adhesive layer. Before the first member 100 is adhered to the patient's skin, the covering layer can protect the adhesive layer, preventing the adhesive layer from being exposed to the outside and adhering to impurities before contacting the skin, which would cause the adhesive layer to fail. When using the first member 100, the covering layer can be removed from the adhesive layer to expose the adhesive layer. The bottom surface of the first member 100 is faced towards the user's skin and the first member 100 is pressed, so that the first member 100 can be firmly held on the skin. Preferably, the covering layer on the adhesive layer can be paper or other elements. Preferably, the first member 100 is not provided with an adhesive layer on the bottom surface in contact with the skin.

[0084] The second member 200 at least includes a first needle body 210 and a tube body 240. Preferably, the first needle body 210 is set in a bent shape. The first needle body 210 is configured in a bent shape that enables the first needle body 210 to rotate. When the second member 200 is combined with the first member 100, the tube body 240 is in fluid communication with the insert 300. Preferably, the injection device is provided with a funnel-shaped guiding element 500 to guide the introduction needle.

[0085] Preferably, the second member 200 is disposed on the top of the first member 100. When the first member 100 and the second member 200 are in interference fit, the first needle body 210 is at the middle position of the separator 140. The first needle body 210 pierces through the separator 140 of the first member 100 to make the first member 100 and the second member 200 in a sealed state. Since the first needle body 210 is in a bent shape, when the first needle body 210 rotates, it can maintain the sealed state of the first member 100 and the second member 200 to prevent leakage when the liquid flows.

[0086] According to a preferred embodiment, the injection device includes a first member 100 and a second member 200. The second member 200 is connected to the first member 100. The second member 200 includes a tube body 240. Preferably, the tube body 240 can extend from the insert 300 at any reasonable angle. Preferably, a shorter tube body 240 can be used in cooperation with the injection device. Preferably, drugs can be included in the concave inlet 131 of the holder 130, and the drugs can be nutritional, antibacterial or other types of drugs. For example, antibacterial drugs are provided in the concave inlet 131. When the injection device is attached to the user's skin and inserted into the body, the antibacterial drugs in the concave inlet 131 can be attached to the insertion site, which can reduce the probability of infection.

[0087] According to a preferred embodiment, the injection device includes an introducer 400. Preferably, the introducer 400 can be set in an arc shape, a "V" shape or any reasonable shape. For example, the introducer 400 can be set in a semi-circular shape. Preferably, the introducer 400 is set in a "C" shape in a manner that can surround the outside of the insert 300. The insert 300 is disposed inside the introducer 400 so that the introducer 400 can protect the insert 300. Preferably, the introducer 400 can completely surround the insert 300. Preferably, the introducer 400 does not completely surround the insert 300. The introducer 400 extends through the insert 300 and through the user's skin. For example, when the introducer 400 is in a "C" shape, after the insert 300 is inserted into the user's skin, the introducer 400 can be separated from the insert 300 in a sliding manner and will not drive the insert 300 to move out of the user's body. If the introducer 400 is disposed inside the insert 300, when the introducer 400 is removed, it is very likely to drag the insert 300 away from the user's body together. Preferably, the tip of the introducer 400 has a certain angle. The setting of the tip angle can help pull the introducer 400 out of the insert 300 after the insert 300 is inserted.

[0088] Example 3

[0089] The precise recognition method for the height of the protrusions on the face or other skin surfaces involved in the present invention can be a dot matrix method based on a three-dimensional image sensor.

[0090] Based on the function of the three-dimensional module of the visual acquisition unit to collect images and recognize the user's face or other skin tissues, the three-dimensional module can include a three-dimensional imager, and it can also be a three-dimensional image sensor 600 set based on the dot matrix acquisition method.

[0091] Such as Figure 6As shown, the three-dimensional image sensor 600 includes a light source 610, a beam splitting element 620, and a camera 630. Light (e.g., infrared light and / or visible light) can be emitted by the light source 610. During operation, the light source 610 can emit one or more light beams towards the user's face or other skin areas. The beam splitting element 620 can split these light beams into additional light beams 640. The camera 630 includes a digital image sensor that is sensitive to the wavelength of light associated with the light beams 640 (the additional light beams 640 can be infrared light with a wavelength of 900 - 1000 nm or other suitable wavelengths), such that the camera 630 captures an infrared image or a visible image of the user's face or other skin areas, while the user's face or other skin areas are covered by a dot array generated by irradiating the user's face or other skin areas with the light beams 640, thereby generating a three-dimensional mapping of the user's face or other skin areas, i.e., a three-dimensional image. Preferably, the three-dimensional image can refer to a three-dimensional image of the patient's face. The three-dimensional image can refer to a three-dimensional image of the patient's nose.

[0092] According to a preferred embodiment, the number of light beams 640 irradiating the user's face or other skin areas can be at least 100, at least 500, at least 2000, at least 10000, at least 25000, at least 50000, less than 1,000000, less than 300000, less than 100000, or less than 75000.

[0093] According to a preferred embodiment, the light source 610 can be a single laser, an array of vertical cavity surface emitting lasers or other laser diodes, one or more light emitting diodes, or other light sources.

[0094] It should be noted that the above specific embodiments are exemplary. Those skilled in the art can come up with various solutions inspired by the disclosure of the present invention, and these solutions also fall within the scope of the disclosure of the present invention and within the protection scope of the present invention. Those skilled in the art should understand that the description and drawings of the present invention are illustrative and do not constitute a limitation on the claims. The protection scope of the present invention is defined by the claims and their equivalents. The description of the present invention contains multiple inventive concepts. Expressions such as "preferably", "according to a preferred embodiment", or "optionally" indicate that the corresponding paragraphs disclose an independent concept. The applicant reserves the right to file divisional applications based on each inventive concept. Throughout the text, the features guided by "preferably" are only optional ways and should not be construed as being required to be provided. Therefore, the applicant reserves the right to waive or delete relevant preferred features at any time.

Claims

1. A three-dimensional facial image display system, characterized in that, It includes a guiding part for guiding the injection device to inject at the correct position and at the correct angle. The guiding part includes a detection unit configured with a visual acquisition unit, a control unit, and an image guiding unit. The visual acquisition unit includes a three-dimensional module. The control unit can generate a three-dimensional image of the injection tissue based on the data collected by the three-dimensional module. The control unit defines a second-level injectable area based on the vascular projection image provided by the visual acquisition unit and controls the image guiding unit to project a green image onto the corresponding position on the face. When the protrusion height of the shape of the three-dimensional face image exceeds the preset range, the control unit controls the image guiding unit to generate a flashing yellow image at the abnormal protrusion position to prompt the medical staff not to withdraw the needle and stop the injection behavior.

2. The system according to claim 1, wherein The control unit can generate a new three-dimensional face image per second and superimpose the newly generated three-dimensional face image with the three-dimensional face image closest to it in time, so as to confirm whether there is a protrusion beyond the preset range on the face of the second-level injectable area.

3. The system according to claim 1 or 2, characterized in that, When the newly generated three-dimensional face image coincides with the three-dimensional face image closest to it in time, the control unit can record the shape of the newly generated three-dimensional face image at the corresponding position that does not match the shape of the three-dimensional face image closest to it in time, and use the corresponding position of the shape in the three-dimensional face image closest to it in time as the base point to calibrate the distance from the base point to the highest point of the shape to determine the protrusion height difference at the injection position during the injection process; the distance is the protrusion height.

4. The system according to any one of claims 1 to 3, characterized in that, Based on the adjustment part divided by the medical staff's terminal, the control unit can generate a second-level injectable area suitable for the current facial morphology according to the patient's facial morphology.

5. The system according to any one of claims 1 to 4, characterized in that The control unit can re-adjust and generate a second-level injectable area suitable for the current facial morphology according to the change of the patient's facial morphology. Among them, the control unit can re-generate the second-level injectable area based on the release of the needle puncture state of the injection device.

6. The system according to any one of claims 1 to 5, characterized in that, The three-dimensional face image is a three-dimensional image sensor (600) set based on the dot matrix acquisition method. The three-dimensional image sensor (600) includes a light source (610), a beam splitting element (620), and a camera (630). The light source (610) emits one or more light beams (640) towards the skin part of the patient. The beam splitting element (620) splits the light beam (640) into additional light beams (640). The camera (630) includes a digital image sensor sensitive to the wavelength of the light associated with the light beam (640), so that the camera (630) captures an infrared image or a visible image of the patient's face, while the skin part of the patient is covered by the dot array generated by the irradiation of the light beam (640), thereby generating a three-dimensional face image formed by the three-dimensional mapping of the face.

7. The system according to any one of claims 1 to 6, characterized in that, The control unit can also be provided with a third-level injectable area. When the needle body enters the vein and stabilizes within the vein, the control unit sets the position contour as the third-level injectable area based on the position where the needle body is located. When it is detected that there is an error between the needle body of the injection device and the third-level injectable area, the control unit issues an alarm.

8. The system according to any one of claims 1 to 7, characterized in that, The control unit determines a first-level injectable area based on the initial setting by the medical staff through the terminal; The first-level injectable area is larger than the second-level injectable area; In response to the vein data within the first-level injectable area transmitted by the vascular imaging unit, the control unit generates a second-level injectable area within the first-level injectable area.

9. The system according to any one of claims 1 to 8, characterized in that, The detection unit further includes a thermal imaging unit, The control unit overlaps the image captured by the visual acquisition unit and the image captured by the thermal imaging unit to confirm the first-level injectable area.

10. The system according to any one of claims 1 to 9, characterized in that, When the detection unit detects that the injection device enters the preset second-level injectable area, the image guidance unit generates a preset needle insertion position in the image provided under the image guidance function.

Images