An auxiliary puncture positioning device

Abstract

This invention provides an auxiliary puncture positioning device, relating to the field of medical navigation technology. It includes a positioning section and a puncture section. The positioning section has an arc-shaped flat plate structure, and its upper surface is provided with positioning patches configured for identification by a medical navigation system. At least three positioning patches are provided. The puncture section has a puncture hole, the axis of which is perpendicular to the plane of the upper surface of the positioning section. The lower end of the puncture section extends below the lower surface of the positioning section. The arc-shaped flat plate structure of the positioning section minimizes obstruction of the operator's field of vision, facilitating judgment based on the operator's conventional surgical experience (not supported by medical navigation systems). The overall size of the auxiliary puncture positioning guide plate can be kept within a small range, facilitating operator operation while achieving the effect of medical navigation. The axis of the puncture hole is perpendicular to the plane of the upper surface of the positioning section, allowing the operator to visually judge and estimate the angle or direction of the puncture hole by observing the positioning surface.

Description

Technical Field

[0001] This utility model relates to the field of medical navigation technology, and in particular to an auxiliary puncture positioning device. Background Technology

[0002] In the field of medical navigation, when using auxiliary devices such as AR glasses for visual positioning, it is necessary to set positioning markers on the patient's body. By obtaining the position information of the positioning markers, the AR glasses and other auxiliary devices can match the positions of various AR elements in the AR glasses with the patient's body, thereby accurately positioning various AR elements on the patient's body and assisting the doctor's operation.

[0003] Existing auxiliary positioning markers are generally positioning balls, multiple positioning balls are used in combination and fixedly connected by a mechanical frame, and then the mechanical frame is fixed to the patient's body. Assistive devices such as AR glasses obtain the position information of these positioning balls and match the position of various AR elements with the patient's body.

[0004] The problem with using a positioning ball as an auxiliary positioning marker is that the ball is relatively large, takes up a lot of space, and can easily obstruct the doctor's field of vision, thus affecting the doctor's operation. Furthermore, the positioning ball needs to be used in conjunction with a mechanical frame, which further increases the overall space and weight required, making the operation more difficult for the doctor. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary puncture positioning device to solve the problem of inconvenient use of auxiliary positioning marks in the prior art.

[0006] This utility model provides an auxiliary puncture positioning device, including a positioning part and a puncture part. The positioning part is an arc-shaped flat plate structure. The upper surface of the positioning part is provided with a positioning patch. The positioning patch is configured for recognition by a medical navigation system. At least three positioning patches are provided. The puncture part is provided with a puncture hole. The axis of the puncture hole is perpendicular to the plane where the upper surface of the positioning part is located. The lower end of the puncture part extends to the lower surface of the positioning part.

[0007] In an optional implementation, any three of the positioning patches are not collinear.

[0008] In an alternative implementation, the positioning patch includes a reflective layer or magnetic coating that can be recognized by medical navigation devices.

[0009] In an optional implementation, the reflective layer is an infrared light reflective layer, and the medical navigation system is equipped with an infrared acquisition module.

[0010] In an optional embodiment, the positioning part is provided with a groove, the positioning patch is installed in the groove, and the upper surface of the positioning patch is flush with the upper surface of the positioning part.

[0011] In an optional implementation, the bottom of the puncture site is curved.

[0012] In an optional embodiment, the lower part of the puncture site is provided with a concave gripping portion.

[0013] In an optional embodiment, the upper part of the puncture portion extends above the upper surface of the positioning portion.

[0014] In an optional embodiment, the puncture portion is connected to the first end of the positioning portion, and a gap is formed between the second end of the positioning portion and the puncture portion.

[0015] In an optional embodiment, the positioning patches are arranged at intervals along the arcuate extension direction of the positioning portion, and the radial width of the positioning portion is smaller than its circumferential length.

[0016] The auxiliary puncture positioning device provided by this utility model has the following beneficial effects:

[0017] 1. The positioning part is an arc-shaped flat plate structure. The positioning part provides an installation position for the positioning patch. The positioning patch is small in size, which allows the overall size of the auxiliary puncture positioning guide plate to be kept within a small range, making it easy for the operator to operate. At the same time, the positioning patch can also be recognized by the medical navigation system, which can achieve the effect of medical navigation.

[0018] 2. The positioning part is equipped with at least three positioning patches. Combined with the arc shape of the positioning part, the positioning patches are easy for the medical navigation system to identify and use to determine the spatial position of the positioning part, so as to match it with the surgical planning path in the medical navigation system and perform assisted puncture by the medical navigation system.

[0019] 3. The axis of the puncture hole is perpendicular to the plane of the upper surface of the positioning part, which makes it easy for the operator to intuitively judge and estimate the angle or direction of the puncture hole by observing the positioning surface;

[0020] 4. The positioning part has an arc-shaped flat plate structure, which occupies little space and has a low degree of obstruction to the operator's field of vision. It is convenient for the operator to observe visually and to make judgments based on the operator's conventional surgical experience without medical navigation systems. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1One of the three-dimensional structural schematic diagrams of the auxiliary puncture positioning device provided in the embodiments of this utility model;

[0023] Figure 2 A second three-dimensional structural schematic diagram of the auxiliary puncture positioning device provided in the embodiments of this utility model;

[0024] Figure 3 The third three-dimensional structural schematic diagram of the auxiliary puncture positioning device provided in the embodiments of this utility model;

[0025] Figure 4 A top view of the auxiliary puncture positioning device provided in this embodiment of the utility model;

[0026] Figure 5 This is a side view of the auxiliary puncture positioning device provided in an embodiment of the present invention.

[0027] Explanation of main component symbols: 100-positioning part; 110-first end; 120-second end; 130-groove; 200-puncture part; 210-puncture hole; 220-grip part; 300-positioning patch. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] This utility model provides an auxiliary puncture positioning device, such as... Figures 1 to 5 As shown, it includes a positioning part 100 and a puncture part 200. The positioning part 100 is an arc-shaped flat plate structure. The upper surface of the positioning part 100 is provided with a positioning patch 300. The positioning patch 300 is configured for recognition by the medical navigation system. At least three positioning patches 300 are provided. The puncture part 200 is provided with a puncture hole 210. The axis of the puncture hole 210 is perpendicular to the plane where the upper surface of the positioning part 100 is located. The lower end of the puncture part 200 extends to the lower surface of the positioning part 100.

[0036] in, Figure 1 This is one of the three-dimensional structural schematic diagrams of the auxiliary puncture positioning device provided in the embodiments of this utility model. Figure 1 This is the viewing angle from above and behind the assisted puncture positioning device; Figure 2This is the second three-dimensional structural schematic diagram of the auxiliary puncture positioning device provided in the embodiment of this utility model. Figure 2 This is the viewing angle from the front and above the assisted puncture positioning device; Figure 3 This is the third three-dimensional structural schematic diagram of the auxiliary puncture positioning device provided in the embodiment of this utility model. Figure 1 This is the viewing angle from below the assisted puncture positioning device; Figure 4 This is a top view schematic diagram of the auxiliary puncture positioning device provided in an embodiment of the present invention. Figure 4 The positioning patch 300 is shown in the image; Figure 5 This is a side view of the auxiliary puncture positioning device provided in an embodiment of the present invention.

[0037] In use, the operator can hold the positioning unit 100 to move the auxiliary puncture positioning device and use it in conjunction with the medical navigation system. The medical navigation system can identify the positioning patch 300 and calculate the position of the puncture hole 210 based on the position of the positioning patch 300. Simultaneously, the medical navigation system can generate visual elements in the operator's field of vision through the display of AR, VR, or MR devices. These visual elements can display the pre-planned surgical path, thereby matching the position of the puncture hole 210 of the auxiliary puncture positioning device with the pre-planned surgical path, thus accurately positioning the puncture hole 210 to the planned location. The operator can be a physician or an assistant physician, or other clinical operator.

[0038] Once the positions of the auxiliary puncture positioning device and the puncture hole 210 are determined, the operator can perform puncture operations through the puncture hole 210, such as using a puncture needle to puncture through the puncture hole 210. At this time, the puncture hole 210 can guide and limit the puncture of the puncture needle, thereby improving the accuracy and stability of the puncture operation and reducing the skill requirements of the operator for the puncture operation.

[0039] The auxiliary puncture positioning device provided in this embodiment has the following beneficial effects:

[0040] 1. The positioning part 100 is an arc-shaped flat plate structure. The positioning part 100 provides an installation position for the positioning patch 300. The positioning patch 300 is small in size, which allows the overall structure of the auxiliary puncture positioning guide plate to be kept within a small range, making it easy for the operator to operate. At the same time, the positioning patch 300 can also be recognized by the medical navigation system, which can achieve the effect of medical navigation.

[0041] 2. The substrate is provided with at least three positioning patches 300. Combined with the arc shape of the positioning part 100, the positioning patches 300 are easily identified by the medical navigation system and used to determine the spatial position of the substrate, thereby matching it with the surgical planning path in the medical navigation system and performing assisted puncture by the medical navigation system.

[0042] 3. The axis of the puncture hole 210 is perpendicular to the plane on the upper surface of the positioning part 100, which makes it easy for the operator to intuitively judge and estimate the angle or direction of the puncture hole 210 by observing the positioning surface.

[0043] 4. The positioning unit 100 has an arc-shaped flat plate structure, which occupies little space and has a low degree of obstruction to the operator's field of vision. It is convenient for the operator to observe visually and to make judgments based on the operator's conventional surgical experience in non-medical navigation systems.

[0044] In an optional implementation, any three of the positioning patches 300 are not collinear.

[0045] In an optional implementation, the positioning patch 300 includes a reflective layer or magnetic coating that can be recognized by a medical navigation device.

[0046] In an optional implementation, the reflective layer is an infrared light reflective layer, and the medical navigation system is equipped with an infrared acquisition module.

[0047] In an optional embodiment, the positioning part 100 is provided with a groove 130, the positioning patch 300 is installed in the groove 130, and the upper surface of the positioning patch 300 is flush with the upper surface of the positioning part 100.

[0048] In an optional embodiment, the bottom of the puncture portion 200 is a spherical surface or a curved surface.

[0049] In an optional embodiment, the lower part of the puncture portion 200 is provided with a concave grip portion 220.

[0050] In an optional embodiment, the upper part of the puncture portion 200 extends above the upper surface of the positioning portion 100.

[0051] In an optional embodiment, the puncture portion 200 is connected to the first end 110 of the positioning portion 100, and a gap is formed between the second end 120 of the positioning portion 100 and the puncture portion 200.

[0052] In an optional embodiment, the positioning patches 300 are arranged at intervals along the arcuate extension direction of the positioning portion 100, and the radial width of the positioning portion 100 is smaller than its circumferential length.

[0053] In some embodiments, such as Figure 1 , Figure 2 and Figure 4 As shown, any three of the positioning patches 300 are not collinear.

[0054] By using three non-collinearly distributed positioning patches 300, the medical navigation system can establish a unique planar coordinate system based on the spatial coordinates of the three points, avoiding positioning ambiguity caused by collinearity. This design enhances the stability of spatial positioning, enabling the navigation system to more accurately calculate the real-time position of the puncture hole 210 and achieve three-dimensional spatial matching with the preoperative planned path, thereby reducing puncture deviation caused by positioning errors.

[0055] like Figure 1 , Figure 2 and Figure 4 As shown, four positioning patches 300 are provided, and any three can be combined for positioning. The positioning patches 300 can be circular; by determining the center of each of the three positioning patches 300, the spatial position of the positioning unit 100 can be determined. The additional positioning patches 300 can be used for calibration or inspection, or to prevent some positioning patches 300 from being incorrectly identified due to accidental damage.

[0056] In some embodiments, the positioning patch 300 includes a reflective layer that can be recognized by the medical navigation device, such as an infrared light reflective layer. Correspondingly, the medical navigation system is equipped with an infrared acquisition module.

[0057] The infrared reflective layer works in conjunction with the active infrared acquisition module to generate high-contrast identification points by reflecting infrared signals. Combined with the infrared acquisition module of the navigation system, the infrared reflective layer can resist visible light interference in complex surgical environments, improving identification reliability. Furthermore, infrared light is harmless to the human body and meets medical safety standards.

[0058] In some embodiments, the positioning patch 300 includes a magnetic coating that can be recognized by a medical navigation device. The magnetic coating can be captured by the electromagnetic sensors of the medical navigation system, making it suitable for electromagnetic navigation scenarios. It allows for precise positioning through changes in the magnetic field, enhancing the device's compatibility and environmental adaptability. Especially when at least three positioning patches 300 are used, the magnetically coated positioning patch 300 only needs to be electromagnetically recognized; by obtaining at least three positions, the position of the positioning part 100 can be accurately determined, thereby calculating the position of the puncture hole 210.

[0059] In some embodiments, such as Figure 1 and Figure 2 As shown, the positioning part 100 is provided with a groove 130, the positioning patch 300 is installed in the groove 130, and the upper surface of the positioning patch 300 is flush with the upper surface of the positioning part 100.

[0060] The groove 130 design ensures that the positioning patch 300 is flush with the surface of the positioning part 100 after being embedded, preventing the patch from protruding and causing accidental scratches or damage during operation. In addition, the flush structure reduces the overall thickness of the device, further reducing obstruction of the operator's field of vision, while maintaining the effective recognition distance between the positioning patch 300 and the navigation system, ensuring the stability of signal transmission.

[0061] The positioning patch 300 can be attached to the groove 130 by adhesive bonding, or it can be installed into the groove 130 by interference fit.

[0062] In some embodiments, such as Figure 3 and Figure 5 As shown, the bottom curved surface of the puncture section 200.

[0063] The curved bottom reduces the foreign body sensation between the puncture site 200 and the patient's skin. This is especially important as the device moves across the skin for precise positioning during use; the curved surface minimizes this sensation and improves patient acceptance. Furthermore, the curved surface reduces friction, facilitating fine-tuning of the device's position during the procedure. The curved design also adapts to the skin's curvature, preventing concentrated local pressure and enhancing patient comfort while maintaining stable contact between the puncture site 200 and the skin.

[0064] Specifically, the curved surface can be a spherical surface, a hemispherical surface, etc.

[0065] In some embodiments, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the lower part of the puncture part 200 is provided with a concave gripping part 220.

[0066] The added concave grip portion 220 provides the operator with an additional grip position. The operator can choose to grip the positioning portion 100 or the concave grip portion 220. The positioning portion 100 is farther away from the puncture hole 210, while the grip portion 220, being located on the puncture portion 200, is closer to the puncture hole 210. The operator can choose according to their own operating preferences.

[0067] The concave grip 220 is ergonomically designed, providing a clear point of force application, allowing the operator to firmly grasp and precisely control the puncture angle. This design reduces the risk of positioning deviation due to an unstable grip.

[0068] In some embodiments, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the upper part of the puncture part 200 extends above the upper surface of the positioning part 100.

[0069] The design of the upper end of the puncture section 200 being higher than the positioning section 100 further extends the length of the puncture hole 210, providing a more stable guiding and limiting effect. Simultaneously, this design also creates a visual reference point, allowing the operator to directly observe the relative height between the puncture section 200 and the positioning section 100, aiding in judging the puncture depth. Furthermore, the protruding puncture section 200 serves as a mechanical limit, preventing excessive insertion of the puncture needle and improving operational safety.

[0070] In some embodiments, such as Figure 1 and Figure 2 As shown, the puncture part 200 is connected to the first end 110 of the positioning part 100, and a gap is formed between the second end 120 of the positioning part 100 and the puncture part 200.

[0071] The gap design reduces the overall weight of the device while providing the operator with an additional viewing window, allowing direct observation of the puncture area through the gap. Furthermore, when the puncture section 200 is equipped with the grip section 220, the gap also provides additional operating space, making it easier for the operator to hold the device.

[0072] In some embodiments, such as Figure 1 , Figure 2 and Figure 4 As shown, the positioning patches 300 are arranged at intervals along the arc-shaped extension direction of the positioning part 100, and the radial width of the positioning part 100 is smaller than its circumferential length.

[0073] The positioning patches 300, distributed along an arc, fully utilize the spatial characteristics of the arc-shaped positioning part 100, allowing the radial width of the positioning part 100 to be significantly smaller than its circumferential length. Specifically, the radial width of the positioning part 100 only needs to be slightly larger than the positioning patch 300 to accommodate its installation, while the circumferential length of the positioning part 100 must be sufficient to accommodate multiple positioning patches 300. This smaller radial width further reduces the device size and avoids obstructing the operating area.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An auxiliary puncture positioning device, characterized by, The device includes a positioning part (100) and a puncture part (200). The positioning part (100) is an arc-shaped flat plate structure. The upper surface of the positioning part (100) is provided with a positioning patch (300). The positioning patch (300) is configured for recognition by a medical navigation system. At least three positioning patches (300) are provided. The puncture part (200) is provided with a puncture hole (210). The axis of the puncture hole (210) is perpendicular to the plane of the upper surface of the positioning part (100). The lower end of the puncture part (200) extends to the lower surface of the positioning part (100).

2. The auxiliary puncture positioning device according to claim 1, wherein Any three of the positioning patches (300) are not collinear.

3. The auxiliary puncture positioning device according to claim 1, wherein The positioning patch (300) includes a reflective layer or magnetic coating that can be recognized by medical navigation devices.

4. The auxiliary puncture positioning device according to claim 3, wherein The reflective layer is an infrared light reflective layer, and the medical navigation system is equipped with an infrared acquisition module.

5. The auxiliary puncture positioning device according to claim 1, wherein, The positioning part (100) is provided with a groove (130), the positioning patch (300) is installed in the groove (130), and the upper surface of the positioning patch (300) is flush with the upper surface of the positioning part (100).

6. The auxiliary puncture positioning device according to claim 1, wherein, The bottom of the puncture section (200) is curved.

7. The auxiliary puncture positioning device according to claim 1, wherein The lower part of the puncture part (200) is provided with a concave gripping part (220).

8. The auxiliary puncture positioning device according to claim 1, wherein, The upper part of the puncture portion (200) extends above the upper surface of the positioning portion (100).

9. The auxiliary puncture positioning device according to claim 1, wherein, The puncture part (200) is connected to the first end (110) of the positioning part (100), and a gap is formed between the second end (120) of the positioning part (100) and the puncture part (200).

10. The auxiliary puncture positioning device according to claim 1, wherein, The positioning patches (300) are arranged at intervals along the arcuate extension direction of the positioning part (100), and the radial width of the positioning part (100) is smaller than its circumferential length.

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