Navigation positioning surgical tool

Abstract

The utility model discloses a navigation positioning surgical tool, and relates to the technical field of medical instruments. According to the key points of the technical scheme, the reflecting part mounting structure comprises a frame and a reflecting part mounting column, the reflecting part mounting column comprises a first connecting shaft, a first mounting hole is formed in the frame, the first connecting shaft is embedded in the first mounting hole, and the first connecting shaft is in interference fit with the first mounting hole. According to the utility model, the machining precision of the shaft and the hole is improved, the machining difficulty and cost are reduced, and micro-deformation of parts is avoided, so that the assembly precision of a navigation positioning surgical tool and the positioning precision during a surgery can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, and more specifically, to a navigation and positioning surgical tool. Background Art

[0002] With the advancement of technology and patients' higher demands for surgical treatment effects, surgical robots with navigation and positioning functions are being accepted by more and more doctors and patients. Some surgical robots use infrared navigation and positioning systems to assist in surgery during treatment. In this process, the matching navigation and positioning surgical tools are often used to perform feature point selection and precise tracking of surgery during intraoperative image registration. In order to meet the accuracy requirements of the navigation and positioning system, commonly used infrared navigation and positioning tools include probes and tracers.

[0003] The existing Chinese patent with authorization announcement number CN216535499U discloses a reflective ball mounting assembly, which includes a frame, a connecting bowl, a reflective ball and a connecting nail; the upper end of the connecting nail is clamped with the connecting bowl, and the lower end of the connecting nail is threadedly connected to the frame.

[0004] However, the following problems still exist when using threaded connection between the connecting nail and the frame: 1. High precision requirements lead to great difficulty in processing; 2. Tightening of the threads during assembly may cause each component to be subjected to tightening torque and undergo micro-deformation, thereby affecting the positioning accuracy. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the present utility model is to provide a navigation and positioning surgical tool, which is conducive to improving the processing accuracy of the shaft and the hole, reducing the processing difficulty and cost, and avoiding micro-deformation of parts, thereby improving the assembly accuracy of the navigation and positioning surgical tool and the positioning accuracy during surgery.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A navigation and positioning surgical tool comprises a frame and a reflector mounting column, wherein the reflector mounting column comprises a first connecting shaft, a first mounting hole is provided on the frame, the first connecting shaft is embedded in the first mounting hole, and the first connecting shaft and the first mounting hole are in interference fit.

[0008] Furthermore, the side wall of the first connecting shaft is provided with an exhaust groove, and / or the frame is provided with an exhaust channel connected with the first mounting hole.

[0009] Furthermore, a retaining glue is provided between the first connecting shaft and the first mounting hole.

[0010] Furthermore, the navigation positioning surgical tool also includes a connecting piece, which includes a second connecting shaft, and a second mounting hole is provided on the frame; the second connecting shaft is embedded in the second mounting hole, and the second connecting shaft and the second mounting hole are interference fit.

[0011] Furthermore, the side wall of the second connecting shaft is provided with an exhaust groove, and / or the frame is provided with an exhaust channel connected with the second mounting hole.

[0012] Furthermore, the connecting piece includes a probe rod.

[0013] Further, the tool also includes a reflector connected to the reflector mounting post;

[0014] The reflective member includes a reflective ball connected to a reflective ball mounting post;

[0015] Alternatively, the reflector comprises a reflective bowl connected to the reflector mounting column, and a reflective ball arranged on the reflective bowl;

[0016] Alternatively, the reflector comprises a reflective bowl connected to the reflector mounting post, and a reflective patch arranged on the reflective bowl.

[0017] Furthermore, the frame is provided with a handle portion, and the handle portion is provided with a thumb groove, an index finger groove and a middle finger groove arranged along the circumferential direction.

[0018] Furthermore, anti-slip protrusions are arranged in the thumb groove and / or the index finger groove.

[0019] Furthermore, the thumb groove and / or index finger groove are spiral arc grooves.

[0020] In summary, the utility model has the following beneficial effects:

[0021] 1. The reflector mounting column is pressed onto the frame by means of interference fit to achieve fixed connection between the reflector mounting column and the frame; this is conducive to improving the processing accuracy of the first connecting axis and the first mounting hole, reducing the processing difficulty and cost, and avoiding micro-deformation of the reflector mounting column or the frame, thereby improving the assembly accuracy of the navigation positioning surgical tool and the positioning accuracy during surgery;

[0022] 2. The probe rod is pressed onto the frame by interference fit to achieve fixed connection between the probe rod and the frame; this is conducive to improving the processing accuracy of the second connecting shaft and the second mounting hole, reducing the processing difficulty and cost, and avoiding micro-deformation of the probe rod or the frame, thereby improving the assembly accuracy of the navigation positioning surgical tool and the positioning accuracy during surgery;

[0023] 3. The thumb groove, index finger groove and middle finger groove are respectively arranged on the handle, which is ergonomic and enables the operator to easily insert the probe rod, thereby improving the positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The structure of the navigation positioning surgical tool in the embodiment is shown in FIG. Figure 1 ;

[0025] Figure 2 The structure of the navigation positioning surgical tool in the embodiment is shown in FIG. Figure 2 ;

[0026] Figure 3 It is a schematic diagram of the structure of the frame and the reflector mounting column in the embodiment;

[0027] Figure 4 It is a structural schematic diagram of the framework in the embodiment;

[0028] Figure 5 It is a schematic diagram of the structure of the reflector mounting column in the embodiment;

[0029] Figure 6 Schematic diagram of the structure of the probe rod in the embodiment.

[0030] In the figure: 1. frame; 11. handle; 111. thumb groove; 112. index finger groove; 113. middle finger groove; 114. anti-slip protrusion; 12. first mounting hole; 13. second mounting hole; 2. reflector mounting column; 21. first connecting axis; 211. first exhaust groove; 3. reflective bowl; 31. first reflective patch; 32. second reflective patch; 4. probe rod; 41. second connecting axis; 411. second exhaust groove. DETAILED DESCRIPTION

[0031] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0032] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention. Example

[0033] A navigation positioning surgical tool, referring to Figures 1 to 6, which includes a frame 1, a reflector mounting column 2, a reflector and a probe rod 4; the reflector mounting column 2 and the probe rod 4 are respectively connected to the frame 1, and the reflector is connected to the reflector mounting column 2; specifically, the reflector in this embodiment includes a reflective bowl 3 connected to the reflector mounting column 2, a first reflective patch 31 arranged on the inner bottom wall of the reflective bowl 3, and a second reflective patch 32 arranged on the inner side wall of the reflective bowl 3, which can effectively ensure the positioning accuracy and reduce the processing cost; in other optional embodiments, the reflector can also be replaced by a reflective ball, or the reflective ball can be arranged in the reflective bowl, which is not limited here; the reflector mounting column 2 includes a first connecting shaft 2 1. A first mounting hole 12 is provided on the frame 1; in this embodiment, a first connecting shaft 21 is embedded in the first mounting hole 12, and an interference fit is formed between the first connecting shaft 21 and the first mounting hole 12; that is, in this embodiment, the reflector mounting column 2 is press-fitted onto the frame 1 by an interference fit, so as to realize a fixed connection between the reflector mounting column 2 and the frame 1; compared with a threaded connection, this is conducive to improving the machining accuracy of the first connecting shaft 21 and the first mounting hole 12, reducing the machining difficulty and cost, and avoiding micro-deformation of the reflector mounting column 2 or the frame 1, thereby improving the assembly accuracy of the navigation positioning surgical tool and the positioning accuracy during surgery.

[0034] Reference Figures 1 to 6 Specifically, in the present embodiment, a first exhaust groove 211 is provided on the side wall of the first connecting shaft 21; when the first connecting shaft 21 is embedded in the first mounting hole 12, an exhaust channel is formed between the inner wall of the first exhaust groove 211 and the inner wall of the first mounting hole 12, so that the air in the hole can be discharged smoothly, thereby avoiding the reverse thrust of the air in the hole during assembly to affect the axial accuracy; in other optional embodiments, an exhaust channel connected to the first mounting hole 12 can also be provided in the frame 1, which is not limited here; preferably, a retaining glue is provided between the first connecting shaft 21 and the first mounting hole 12; the use of the retaining glue is beneficial to improving the stability and accuracy of the connection; wherein, the retaining glue belongs to the prior art and will not be described in detail here.

[0035] Reference Figures 1 to 6 The probe rod 4 includes a second connecting shaft 41, and a second mounting hole 13 is provided on the frame 1; the second connecting shaft 41 is embedded in the second mounting hole 13, and the second connecting shaft 41 and the second mounting hole 13 are interference fit; that is, in this embodiment, the probe rod 4 is pressed onto the frame 1 by an interference fit to achieve a fixed connection between the probe rod 4 and the frame 1; this is conducive to improving the machining accuracy of the second connecting shaft 41 and the second mounting hole 13, reducing the machining difficulty and cost, and avoiding micro-deformation of the probe rod 4 or the frame 1, thereby improving the assembly accuracy of the navigation and positioning surgical tools and the positioning accuracy during surgery; as a connecting piece connected to the frame 1, the probe rod 4 can also be replaced by other connecting structures, which are not limited here.

[0036] Reference Figures 1 to 6 Specifically, in the present embodiment, a second exhaust groove 411 is provided on the side wall of the second connecting shaft 41; when the second connecting shaft 41 is embedded in the second mounting hole 13, an exhaust channel is formed between the inner wall of the second exhaust groove 411 and the inner wall of the second mounting hole 13, so that the air in the hole can be discharged smoothly, thereby avoiding the reverse thrust of the air in the hole during assembly to affect the axial accuracy; in other optional embodiments, an exhaust channel connected to the second mounting hole 13 can also be provided in the frame 1, which is not limited here; preferably, a retaining glue is provided between the second connecting shaft 41 and the second mounting hole 13; the use of the retaining glue is beneficial to improving the stability and accuracy of the connection; wherein, the retaining glue belongs to the prior art and will not be described in detail here.

[0037] Reference Figure 1 and Figure 2 Specifically, in this embodiment, a handle portion 11 is provided on the frame 1, and a thumb groove 111, an index finger groove 112 and a middle finger groove 113 are arranged along the circumferential direction on the handle portion 11; preferably, the thumb groove 111 and the index finger groove 112 are spiral arc grooves, and the middle finger groove 113 is a linear arc groove, which is ergonomic and allows the operator to easily insert the probe rod 4, thereby improving the positioning accuracy; preferably, a plurality of anti-slip protrusions 114 are provided in the thumb groove 111 and the index finger groove 112, thereby improving the friction force; wherein, the arc groove refers to a groove having an inner wall that is an arc surface; the linear arc groove refers to a groove that extends axially; and the spiral arc groove refers to a groove that deflects circumferentially while extending axially, thereby forming a spiral shape.

Claims

1. A navigation positioning surgical tool, comprising a frame and a reflector mounting column, wherein the reflector mounting column comprises a first connecting shaft, and a first mounting hole is provided on the frame, wherein: The first connecting shaft is embedded in the first mounting hole, and the first connecting shaft and the first mounting hole are in interference fit; The side wall of the first connecting shaft is provided with an exhaust groove, and / or the frame is provided with an exhaust channel communicating with the first mounting hole; The tool also includes a reflector connected to the reflector mounting post; The reflective member includes a reflective ball connected to a reflective ball mounting post; Alternatively, the reflector comprises a reflective bowl connected to the reflector mounting column, and a reflective ball arranged on the reflective bowl; Alternatively, the reflector comprises a reflective bowl connected to the reflector mounting post, and a reflective patch arranged on the reflective bowl.

2. The navigation positioning surgical tool according to claim 1, characterized in that: A retaining glue is arranged between the first connecting shaft and the first mounting hole.

3. The navigation positioning surgical tool according to claim 1, characterized in that: The navigation positioning surgical tool also includes a connecting piece, which includes a second connecting shaft. A second mounting hole is provided on the frame; the second connecting shaft is embedded in the second mounting hole, and an interference fit is formed between the second connecting shaft and the second mounting hole.

4. The navigation positioning surgical tool according to claim 3, characterized in that: The side wall of the second connecting shaft is provided with an exhaust groove, and / or the frame is provided with an exhaust channel communicating with the second mounting hole.

5. The navigation positioning surgical tool according to claim 3, characterized in that: The connecting piece includes a probe rod.

6. The navigation positioning surgical tool according to claim 1, characterized in that: The frame is provided with a handle portion, and the handle portion is provided with a thumb groove, an index finger groove and a middle finger groove which are arranged along the circumferential direction.

7. The navigation positioning surgical tool according to claim 6, characterized in that: Anti-slip protrusions are arranged in the thumb groove and / or the index finger groove.

8. The navigation positioning surgical tool according to claim 6, characterized in that: The thumb groove and / or index finger groove are spiral arc grooves.

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