Navigation guide and surgical navigation system including same
By designing a navigation guide with a handle part that can be adjusted and fixed within 360°, the problem of difficulty in adjusting the orientation and handle angle of the existing navigation guide is solved, and the convenience, accuracy and safety of the operation are improved.
Patent Information
- Application Number
- CN202420980282.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The existing navigation guides are difficult to adjust the orientation, especially the handle angle, and cannot adapt to the handle grip of different surgical positions, which affects the convenience, accuracy and safety of the operation.
A navigation guide is designed, with the handle portion being adjustable and fixed in the range of 360° relative to the rest, by providing a spring inside the rear end of the navigation guide so that the handle can be rotated and fixed after reaching the desired angle.
The multi-directional and multi-angle adjustment of the navigation guide handle is realized, and the handle grip is adapted to different surgical positions, improving the convenience, accuracy and safety of the operation.
Smart Images
Figure CN222657182U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical instruments, in particular to a surgical navigation system, more specifically to a navigation guide, and furthermore, to a surgical navigation system comprising the navigation guide. Background Art
[0002] In the field of image-guided surgery or surgical guidance, a navigation guide is usually used to guide and position surgical instruments. For example, the navigation guide can be fixedly connected to the end of a robotic arm to guide and position surgical instruments for performing surgical operations.
[0003] For different surgical procedures and body positions, the handle of the navigation guide needs to be held at different angles. In addition, during the operation, for example, in order to establish a channel, the operating direction of the surgical instrument may need to be repeatedly adjusted. However, the existing navigation guide has the problem of being difficult to adjust the orientation, especially the handle angle, so that it cannot adapt to the handle holding of different surgical procedures and body positions.
[0004] Thus, there remains a need to provide improved navigation guides. Utility Model Content
[0005] One purpose of the utility model is to provide an improved navigation guide to achieve multi-directional and multi-angle adjustments during surgery, thereby improving at least one of the convenience, accuracy and safety of the surgery.
[0006] According to one aspect of the utility model, a navigation guide is provided, which includes a handle portion and a connecting portion, wherein the connecting portion includes a tubular portion for connecting a surgical tool or a surgical instrument and a tracker connecting portion located near one end of the tubular portion, and the tracker connecting portion is used to engage an optical tracker to achieve intraoperative navigation positioning, wherein the tracker connecting portion is positioned on one side of the longitudinal axis of the tubular portion at one end of the tubular portion, and includes an annular first connecting portion, and the tracker connecting portion is connected to the tubular portion by means of the first connecting portion, and the handle portion is positioned on the other side of the longitudinal axis at the one end of the tubular portion, and includes an annular second connecting portion, and the handle portion is connected to the tubular portion by means of the second connecting portion, wherein the first connecting portion and the second connecting portion are adjacently arranged in the axial direction of the tubular portion, and the second connecting portion can rotate circumferentially relative to the tubular portion.
[0007] Optionally, a stop sleeve is provided at the one end of the tubular portion, the stop sleeve is positioned on a side of the second connecting portion that is opposite to the first connecting portion in the axial direction, and is fixed around the end of the tubular portion in the circumferential direction.
[0008] Optionally, the stop sleeve has a wall portion with reduced thickness, the second connecting part comprises an axial groove, and the wall portion of the stop sleeve is inscribed in an inner wall of the axial groove of the second connecting part.
[0009] Optionally, the radial inner side of the wall portion of the stop sleeve, the axial groove of the second connecting portion and the radial outer side of the tubular portion together form an accommodating space, in which a spring is arranged. The spring surrounds the outer circumference of the tubular portion, and the axial ends of the spring respectively abut the stop sleeve and the second connecting portion, so that it can be compressed along the axial direction.
[0010] Optionally, the first connecting part and the second connecting part include a tooth-groove connection structure, wherein a plurality of teeth and a corresponding plurality of grooves evenly distributed along the circumferential direction are respectively provided on the first connecting part and the second connecting part, and the first connecting part and the second connecting part can be fixed in the circumferential direction by the engagement of the teeth and the grooves.
[0011] Optionally, the tracker connection portion is configured as a card head in a dovetail groove and tenon connection structure for engaging with a corresponding card slot in the dovetail groove and tenon connection structure of the optical tracker.
[0012] Optionally, a shoulder portion is provided on the outer circumference of the tubular portion, and the shoulder portion provides a stop for the first connecting portion at a side of the first connecting portion axially opposite to the second connecting portion.
[0013] According to another aspect of the utility model, a surgical navigation system is also provided, which includes an optical tracking device, an imaging device and the aforementioned navigation guide, wherein the optical tracking device is capable of tracking the navigation guide.
[0014] A tracker connection portion is provided at the top of the navigation guide of the utility model, so that an optical tracker can be connected to the top thereof to achieve navigation positioning during surgery. In addition, the handle is designed to be relatively rotatable to adjust the angle range. For example, a spring is provided inside the rear end of the navigation guide so that the handle can move backward within the deformation range of the spring, so that the handle can be decoupled from the gear-like characteristic structure between the rest of the navigation guide, so that the handle can rotate relative to the rest of the handle. When the desired angle is reached, the handle is released and the handle is moved forward with the aid of the restoring force of the spring, so that the gear-like characteristic structure is coupled again, thereby fixing the handle at the desired angle. Therefore, the handle of the navigation guide of the utility model can be adjusted and fixed within a range of 360° relative to the rest of the parts, so that the operator can hold the handle in different surgical postures. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention is described in detail below by way of non-limiting embodiments with reference to the accompanying drawings, wherein the drawings are only schematic and are not necessarily drawn to scale, and furthermore, they only show those parts necessary to illustrate the present invention, while other parts may be omitted or only briefly mentioned. That is, in addition to the parts shown in the drawings, the present invention may also include other parts.
[0016] Figure 1 It is a schematic stereoscopic diagram of a navigation guide according to an embodiment of the utility model.
[0017] Figure 2 Schematically shows Figure 1 A cross-sectional view of the navigation guide in .
[0018] Figures 3a to 3d Schematically shows Figure 1 Operation of the navigation director in . DETAILED DESCRIPTION
[0019] The navigation guide according to the embodiment of the utility model is described below with reference to the accompanying drawings. In the following description, many specific features are described so that the technical personnel in the relevant technical field can more fully understand the utility model. However, it can be understood by the technical personnel in the relevant technical field that the implementation of the utility model may not have some of these specific features. In addition, it should be understood that the utility model is not limited to the specific embodiments introduced.
[0020] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as limiting the scope of protection of the present invention.
[0021] Figure 1 and Figure 2 A navigation guide 100 according to an embodiment of the present invention is schematically shown. The navigation guide 100 may include a handle portion 1 and a connection portion 2. The connection portion 2 may include a tubular portion 20 and a tracker connection portion 22. The tubular portion 20 is used to connect a surgical tool or surgical instrument (not shown), and the tracker connection portion 22 is located at one end 202 of the tubular portion 20 (see Figure 2 ). The tracker coupling portion 22 is used to engage an optical tracker (not shown) to achieve intraoperative navigation positioning.
[0022] The navigation guide 100 according to the utility model can be used in a surgical navigation system including an optical tracking device and an imaging device, wherein the optical tracking device is capable of tracking an optical tracker connected to the navigation guide 100 .
[0023] like Figure 2 As shown, the tracker coupling portion 22 can be positioned at one end 202 of the tubular portion 20 on one side of the longitudinal axis of the tubular portion 20 (at Figure 1 and Figure 2 Furthermore, the tracker coupling portion 22 may include a first connection portion 24 in an annular shape, such that the tracker coupling portion 22 can be connected to the tubular portion 20 by means of the first connection portion 24 .
[0024] The handle portion 1 can be positioned at one end (or "rear end") 202 of the tubular portion 20 on the other side of the longitudinal axis of the tubular portion 20 (at the other end). Figure 1 and Figure 2 In addition, the handle portion 1 may include an annular second connection portion 12, so that the handle portion 1 can be connected to the tubular portion 20 by means of the second connection portion 12. The main body of the handle portion 1 can be fastened to the second connection portion 12 by a connector.
[0025] like Figure 2 As shown in FIG. 1 , the first connection portion 24 and the second connection portion 12 may be arranged adjacent to each other in the axial direction of the tubular portion 20 , and the second connection portion 12 may be rotatable relative to the tubular portion 20 .
[0026] See also Figure 1 and Figure 2 A stop sleeve 30 may be provided at one end 202 of the tubular portion 20. The stop sleeve 30 may be positioned at one side of the second connection portion 12, the side being axially opposite to the side provided with the first connection portion 24, and the stop sleeve 30 may be fixed around the end of the tubular portion 20 in the circumferential direction.
[0027] like Figure 2 As shown, the stop sleeve 30 may have a thin-walled portion or a wall portion 302 with reduced thickness (hereinafter referred to as "thin-walled portion" for simplicity). The second connecting portion 12 may include an axial groove 122. The thin-walled portion 302 of the stop sleeve 30 may be inscribed in the inner wall of the axial groove 122 of the second connecting portion 12.
[0028] Thus, the radial inner side of the thin-walled portion 302 of the stop sleeve 30, the axial groove 122 of the second connecting portion 12, and the radial outer side of the tubular portion 20 can jointly form an accommodation space, in which a spring 40 can be arranged. The spring 40 can surround the outer circumference of the tubular portion 20, and the axial ends of the spring 40 can respectively abut the stop sleeve 30 and the second connecting portion 12, so as to be compressed in the axial direction.
[0029] The first connection portion 24 and the second connection portion 12 may include a tooth-groove connection structure. Specifically, the first connection portion 24 and the second connection portion 12 may be respectively provided with a plurality of teeth 50 and a corresponding plurality of grooves 52 evenly distributed along the circumferential direction.
[0030] In this embodiment, if Figure 1 and Figure 3b and Figure 3c As shown, the first side surface of the first connection part 24 facing the second connection part 12 may be provided with a protruding tooth portion 50. The second side surface of the second connection part 12, which is opposite to the first side surface of the first connection part 24, may be provided with a plurality of recessed groove portions 52 respectively corresponding to the tooth portions 50.
[0031] Another embodiment is also conceivable, in which a groove portion 52 is provided on a first side surface of the first connecting portion 24 and a corresponding tooth portion 50 is provided on an opposite second side surface of the second connecting portion 12 .
[0032] The first connection portion 24 and the second connection portion 12 can be fixed in the circumferential direction by the engagement of the tooth portion 50 and the groove portion 52 .
[0033] See also Figure 1 , the tracker connection part 22 can be configured as a clamp head 220 in a dovetail groove and a tenon-type connection structure. Accordingly, the optical tracker (not shown) for connecting with the navigation guide 100 can be configured to include a corresponding clamping slot in the dovetail groove and the tenon-type connection structure, and the optical tracker can be detachably connected to the tracker connection part 22 of the navigation guide 100 through the engagement of the clamp head 220 with the clamping slot.
[0034] In addition, a shoulder portion 204 may be provided on the outer circumference of the tubular portion 20. The shoulder portion 204 may provide a stop for the first connecting portion 24 at a side of the first connecting portion 24 axially opposite to the second connecting portion 12, such as Figure 2 shown.
[0035] Figures 3a to 3d The operation of the navigation guide 100 according to the present invention is shown. Figure 3aFIG. 1 shows the navigation guide 100 in a first position (position before adjustment). Since a spring 40 is provided inside the rear end of the navigation guide 100, the handle portion 1 can move backward ( Figures 3a to 3d ), see Figure 3b This movement causes the tooth-slot coupling structure between the second connection portion 12 of the handle portion 1 to be disconnected from the first connection portion 24 of the adjacent tracker coupling portion 22, so that the handle portion 1 can be rotated relative to the rest of the navigation guide 100, see Figure 3b and Figure 3c When the desired angle is reached, the handle portion 1 is released and the handle portion 1 is moved forward ( Figures 3a to 3d The handle is moved to the right side of the handle so that the tooth-groove feature structure is coupled again, thereby fixing the handle at a second angle (adjusted angle), see Figure 3d Thus, the handle portion 1 of the navigation guide 100 can be adjusted and fixed within a range of 360° relative to the remaining portions, so that the operator of the operation can hold the handle portion 1 in different surgical postures.
[0036] Those skilled in the art can understand that the embodiments described above are exemplary and can be improved by those skilled in the art. The structures described in the embodiments can be freely combined without causing conflicts in structure or principle.
[0037] After describing the preferred embodiments of the present invention in detail, those skilled in the art can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the appended claims, and the present invention is not limited to the implementation methods of the exemplary embodiments listed in the specification.
[0038] List of reference numerals:
[0039] 100 Navigation Director
[0040] 1. Handle part
[0041] 12 Second connection part
[0042] 122 axial groove
[0043] 2Connection part
[0044] 20 Tubular part
[0045] 202 One end / rear end of the tubular portion
[0046] 22 Tracker connection
[0047] 220 card head
[0048] 24 first connection part
[0049] 30 stop sleeve
[0050] 302 Thin-walled section / wall section with reduced thickness
[0051] 40 Spring
[0052] 50 teeth
[0053] 52 slots
Claims
1. A navigation guide (100), characterized in that: The navigation guide (100) comprises a handle portion (1) and a connection portion (2). The connection part (2) comprises a tubular portion (20) for connecting a surgical tool or a surgical instrument and a tracker connection portion (22) located near one end (202) of the tubular portion (20). The tracker connection part (22) is used to engage the optical tracker to achieve intraoperative navigation positioning, wherein the tracker connection part (22) is positioned on one side of the longitudinal axis of the tubular part (20) at one end (202) of the tubular part (20), and includes an annular first connection part (24), and the tracker connection part (22) is connected to the tubular part (20) by means of the first connection part (24), The handle portion (1) is located at the other side of the longitudinal axis at the one end (202) of the tubular portion (20) and comprises an annular second connecting portion (12), by means of which the handle portion (1) is connected to the tubular portion (20), The first connecting portion (24) and the second connecting portion (12) are arranged adjacent to each other in the axial direction of the tubular portion (20), and the second connecting portion (12) can rotate circumferentially relative to the tubular portion (20).
2. The navigation guide (100) according to claim 1, characterized in that: A stop sleeve (30) is provided at the one end (202) of the tubular portion (20), the stop sleeve (30) being positioned on a side of the second connecting portion (12) opposite to the first connecting portion (24) in the axial direction and being fixed around the end of the tubular portion (20) in the circumferential direction.
3. The navigation guide (100) according to claim 2, characterized in that: The stop sleeve (30) has a wall portion (302) with reduced thickness, the second connection portion (12) includes an axial groove (122), and the wall portion (302) of the stop sleeve (30) is inscribed in the inner wall of the axial groove (122) of the second connection portion (12).
4. The navigation guide (100) according to claim 3, characterized in that: The radial inner side of the wall portion (302) of the stop sleeve (30), the axial groove (122) of the second connecting portion (12), and the radial outer side of the tubular portion (20) together form an accommodation space, in which a spring (40) is arranged. The spring (40) surrounds the outer circumference of the tubular portion (20), and the axial ends of the spring (40) respectively abut against the stop sleeve (30) and the second connecting portion (12), so that the spring (40) can be compressed in the axial direction.
5. The navigation guide (100) according to any one of claims 1 to 4, characterized in that: The first connecting part (24) and the second connecting part (12) include a tooth-groove connection structure, wherein a plurality of teeth (50) and a corresponding plurality of grooves (52) uniformly distributed along the circumferential direction are respectively provided on the first connecting part (24) and the second connecting part (12), and the first connecting part (24) and the second connecting part (12) can be fixed in the circumferential direction by the engagement of the teeth (50) and the grooves (52).
6. The navigation guide (100) according to any one of claims 1 to 4, characterized in that: The tracker connection portion (22) is configured as a clamping head (220) in a dovetail groove and tenon-type connection structure for engaging with a corresponding clamping slot in the dovetail groove and tenon-type connection structure of the optical tracker.
7. The navigation guide (100) according to any one of claims 1 to 4, characterized in that: A shoulder portion (204) is provided on the outer periphery of the tubular portion (20), and the shoulder portion (204) provides a stop for the first connecting portion (24) at a side of the first connecting portion (24) axially opposite to the second connecting portion (12).
8. A surgical navigation system, characterized in that: The surgical navigation system comprises an optical tracking device, an imaging device and a navigation guide (100) according to any one of claims 1 to 7, wherein the optical tracking device is capable of tracking the navigation guide (100).