Positioning structure for navigation registration

Abstract

The utility model discloses a positioning structure for navigation registration, which comprises at least one fixing device, at least three light reflecting devices are arranged on the fixing device, the light reflecting devices are detachably connected and fixed on the fixing device, and the fixing device is detachably connected and fixed on the surface of a registered article. The system has the advantages of being more stable and capable of simplifying registration steps.

Description

Technical Field

[0001] The utility model relates to the field of optical navigation, in particular to a positioning structure used for navigation registration. Background Art

[0002] Optical navigation technology is a significant achievement in modern science and technology. Its primary medical applications include tumor treatment, image-guided surgery, and endoscopic surgical navigation. These applications ensure accurate alignment of surgical instruments with the patient's anatomy during surgery through precise spatial positioning and real-time instrument tracking, thereby improving surgical safety and success rates. However, optical navigation technology requires object registration. This registration process involves using a probe with an optical reflector on a marker. This process is time-consuming and cumbersome, and is operator-dependent, leading to significant errors if the hand is unsteady.

[0003] To address these issues, patent application CN115381552A discloses a calibration device and method, a computer-readable storage medium, and a computer device. This device uses a robotic arm to hold a probe to mark objects. This method improves calibration accuracy and effectively reduces errors caused by the operator's lack of arm stability during manual calibration. However, the process of registering objects using a probe is relatively time-consuming and tedious, requiring considerable time and effort.

[0004] How to solve the above problems has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] The purpose of the utility model is to provide a positioning structure for navigation registration which is more stable and can simplify the registration steps.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The utility model provides a positioning structure for navigation registration, comprising at least one fixing device, one of which is provided with at least three reflective devices, the reflective devices being detachably connected and fixed to the fixing device, and the fixing devices being detachably connected and fixed to the surface of the registered object.

[0008] Furthermore, at least three non-collinear reflective devices are detachably adhered and fixed to the fixing device to form a circumscribed circle, and the radius of the circumscribed circle is less than or equal to the radius of the fixing device.

[0009] Furthermore, the number of the fixing devices is 3-9.

[0010] Furthermore, the number of the fixing devices is 6.

[0011] Furthermore, the radii of the circumscribed circles are different.

[0012] Furthermore, the fixing device is an adhesive medical dressing, one side of which is detachably adhered and fixed to the surface of the registered article, and the other side of the adhesive medical dressing is a smooth plane, and the reflective device is detachably connected and fixed to the smooth plane.

[0013] Furthermore, the reflective device is a reflective patch, and the reflective patch is adhered and fixed on the smooth plane.

[0014] Due to the adoption of the above structure, the utility model has the following beneficial effects:

[0015] The utility model detachably connects the fixing device to the surface of the object, and directly scans and identifies the reflective device on the fixing device through the optical locator to achieve the purpose of object registration. Directly connecting the fixing device and the reflective device to the object can effectively avoid the situation where the operator lacks stability in the operator's hand when operating the probe for registration, resulting in large registration errors, and can also make the optical navigation registration steps simpler.

[0016] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 Schematic diagram of circumscribed circles of different radii of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Please refer to Figures 1 to 2 The present invention provides a positioning structure for navigation registration, comprising at least one fixing device 1, one fixing device 1 being provided with at least three reflective devices 2, the reflective devices 2 being detachably connected and fixed to the fixing device 1, and the fixing device 1 being detachably connected and fixed to the surface of the object to be registered. The fixing device 1 is detachably connected to the surface of the object, and the reflective devices 2 on the fixing device 1 are directly scanned and identified by an optical locator to achieve the purpose of object registration. Directly connecting the fixing device 1 and the reflective devices 2 to the object can effectively avoid large registration errors caused by the operator's lack of stability when operating the probe for registration, and can also make the optical navigation registration process simpler.

[0022] In the present invention, at least three non-collinear reflective devices 2 are detachably and adhesively fixed to the fixing device 1 to form a circumscribed circle 21, and the radius of the circumscribed circle 21 is less than or equal to the radius of the fixing device 1. The present invention is based on the principle of optical tracking, and the center of the circumscribed circle 21 is determined by three reflective points.

[0023] In the present invention, the number of the fixing devices 1 is 3-9.

[0024] In the present invention, the number of the fixing devices 1 is 6.

[0025] In the present invention, the radius of each circumscribed circle 21 is different. The positioning structure with the circumscribed circle 21 having the radius is pasted on the object to be positioned, and the optical positioning device can directly identify different objects through the reflective device 2 and distinguish different objects by different radii.

[0026] In the present invention, the fixing device 1 is an adhesive medical dressing, one side of which is removably adhered to the surface of a registered object. The other side of the adhesive medical dressing is a smooth surface 11, and the reflective device 2 is removably connected and fixed to the smooth surface 11. The adhesive medical dressing has a circular structure. The release paper on the adhesive medical dressing is removed to expose the adhesive backing, allowing it to be adhered to the surface of the registered object.

[0027] In the present invention, the reflective device 2 is a reflective patch, which is adhered and fixed on the smooth plane 11. The reflective patch is a circular structure, and the reflective patch can reflect light back to the source direction.

[0028] When the present invention is in use, six fixing devices 1 are used as a group, the release paper of the adhesive medical dressing is torn off and then adhered to the surface of the object to be measured, and the optical locator is irradiated on the adhesive medical dressing on the object to be measured. The reflective patch on the adhesive medical dressing receives the light source and reflects back to the optical locator. The optical locator can automatically identify and distinguish different objects by the different radii of the identified circumscribed circle 21 to complete the object registration. Compared with traditional probe registration, the present invention simplifies the registration steps of optical navigation, saves user time, and reduces errors caused by human operation.

[0029] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-mentioned disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A positioning structure for navigation registration, comprising at least one fixing device (1); characterized in that: At least three reflective devices (2) are provided on one of the fixing devices (1); the reflective devices (2) are detachably connected and fixed to the fixing device (1); and the fixing device (1) is detachably connected and fixed to the surface of the registered article.

2. A positioning structure for navigation registration according to claim 1, characterized in that: At least three non-collinear reflective devices (2) are detachably adhered and fixed to the fixing device (1) to form a circumscribed circle (21), and the radius of the circumscribed circle (21) is less than or equal to the radius of the fixing device (1).

3. A positioning structure for navigation registration according to claim 2, characterized in that: The number of the fixing devices (1) is 3-9.

4. A positioning structure for navigation registration according to claim 3, characterized in that: The number of the fixing devices (1) is 6.

5. A positioning structure for navigation registration according to claim 3 or 4, characterized in that: The radii of the circumscribed circles (21) are different.

6. A positioning structure for navigation registration according to claim 4, characterized in that: The fixing device (1) is an adhesive medical dressing, one side of which is detachably adhered and fixed to the surface of the registered article, and the other side of which is a smooth plane (11). The reflective device (2) is detachably connected and fixed to the smooth plane (11).

7. A positioning structure for navigation registration according to claim 6, characterized in that: The reflective device (2) is a reflective patch, and the reflective patch is adhered and fixed on the smooth plane (11).

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