Laser type six-equal-division mechanism and aortic valve annular cavity circumferential positioning instrument

Abstract

The invention discloses a laser type six-equal-division mechanism and an aortic valve annular cavity circumferential positioning instrument, the laser type six-equal-division mechanism comprises a horizontally-arranged mounting seat and three first lasers which are uniformly mounted at the edge of the mounting seat at intervals in the circumferential direction, the three first lasers are linear lasers, and the transmitting ends of the three first lasers face downwards; the laser beams emitted by the first laser device are first laser beams, the vertical planes where the three first laser beams are located intersect at an intersection point on the horizontal plane, and the horizontal plane is divided into six equal parts. In this way, the mounting base can be placed over the aortic valve ring cavity, and the vertical planes where the first laser beams emitted by the three first lasers are located intersect in the inner middle of the aortic valve ring cavity; the three first laser beams can form three light spots (which can be used as positions of joints of three valve leaflets) which are uniformly distributed at intervals in the circumferential direction on the cavity wall of the aortic valve annular cavity, and then the mounting seat is coaxially rotated by 60 degrees to obtain three new light spots (which can be used as positions of three highest suture sites).

Description

Technical Field

[0001] This invention belongs to the field of medical devices, and particularly relates to a laser-type six-part mechanism and an aortic valve annulus cavity circumferential positioning device. Background Technology

[0002] During cardiac surgery, after removing the three leaflets from the aortic valve annulus 41, three artificial leaflets need to be implanted. During implantation, three leaflet sutures 42 and three highest suture points 43 need to be marked on the wall of the aortic valve annulus 41 (e.g., ...). Figure 1 As shown in the figure, there is a suture site 43 between two adjacent leaflet sutures 42 (the three suture sites 43 and the three leaflet sutures 42 are evenly distributed in the circumferential direction and are alternately distributed). Currently, medical staff determine the position of the three leaflet sutures 42 based on their personal experience, and then use the three leaflet sutures 42 to mark the best suture position of the three highest suture sites 43 in the circumferential direction. However, this requires a high level of personal experience from medical staff, especially since the positional accuracy of the suture sites is relatively low, which may affect the functional effect after aortic valve repair. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention aims to provide a laser-based hexasection mechanism that can conveniently and precisely locate the positions of the three leaflet sutures and the three highest suture sites during cardiac surgery.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows: a laser-type six-equal division mechanism, comprising a mounting base and three first lasers, wherein the mounting base is horizontally arranged, and the three first lasers are all line-shaped lasers, and are evenly installed in the middle of the mounting base along the circumferential direction, with the emitting ends of the three first lasers facing downwards, and the laser beams emitted by the first lasers being first laser beams, the vertical planes containing the three first laser beams intersect at an intersection point on the horizontal plane, and divide the horizontal plane into six equal parts.

[0005] The beneficial effects of the technical solution of the present invention are as follows: the mounting base can be placed directly above the aortic valve annulus cavity, and the vertical planes of the first laser beams emitted by the three first lasers will intersect in the middle of the aortic valve annulus cavity. At this time, the three first laser beams will form three circumferentially spaced and evenly distributed light spots on the cavity wall of the aortic valve annulus cavity. These three light spots can be used as the positions of the three leaflet joints. Then, the mounting base is rotated 60° coaxially, and the three first laser beams will form three new circumferentially spaced and evenly distributed light spots on the cavity wall of the aortic valve annulus cavity. These three light spots can be used as the positions of the three highest suture sites.

[0006] The present invention can be further improved in the following ways based on the above technical solution: Furthermore, it also includes three second lasers, all of which are line-shaped lasers and are evenly spaced along the circumference on the mounting base. The emitting ends of the three second lasers are tilted downwards, and the laser beams emitted by the second lasers are second laser beams. The three first lasers are located in the middle between the three second lasers. The three first lasers and the three second lasers correspond one-to-one. The first laser beam emitted by each first laser and the second laser beam emitted by the corresponding second laser are coplanarly distributed in the same vertical plane.

[0007] The beneficial effect of the above-mentioned further technical solution is that it enables the three first laser beams and the three second laser beams to form six circumferentially spaced and evenly distributed light spots on the cavity wall of the aortic valve annulus. These six light spots can serve as the positions of the three leaflet joints and the three highest suture sites.

[0008] Furthermore, it also includes three support rods. The mounting base is annular, and the three support rods are evenly distributed around the mounting base in the circumferential direction. The middle part of each support rod in the length direction is connected to the mounting base. One end of each support rod is located inside the ring of the mounting base, and the other end is located outside the ring of the mounting base. The three first lasers are respectively installed at the end of the three support rods located inside the ring of the mounting base, and the three second lasers are respectively installed at the end of the three support rods located outside the ring.

[0009] The beneficial effect of the above-mentioned further technical solution is that it enables the three first lasers and the three second lasers to be distributed in the same circle and dispersed on the mounting base.

[0010] Furthermore, each of the first lasers and the corresponding second lasers is mounted on the same support rod; the emitting ends of the first lasers and the emitting ends of the corresponding second lasers are tilted close to each other.

[0011] The beneficial effect of the above-mentioned further technical solution is that the laser beams emitted by the first and second lasers on each support rod form two light spots that are radially aligned with each other on the cavity wall of the aortic valve annulus, and respectively constitute the position of a leaflet joint and the highest suture point.

[0012] Furthermore, each end of the support rod is provided with a through mounting cylinder, and the two mounting cylinders on each support rod are used to install the corresponding second laser and first laser.

[0013] The beneficial effect of the above-mentioned further technical solution is that it makes it more convenient to install the first laser and the second laser on the support rod. At the same time, the first laser and the second laser can rotate in their respective mounting cylinders to adjust the accuracy of the coplanar distribution of the laser beams emitted by the corresponding first laser and the second laser.

[0014] Furthermore, the mounting base is annular, and three adjusting members are spaced apart along the circumference of the mounting base. The three adjusting members correspond one-to-one with the three support rods. Each support rod is mounted on the mounting base through the corresponding adjusting member. The adjusting member is used to adjust the tilt angle of the corresponding support rod in the vertical plane, so as to fine-tune the tilt angle of the second laser and the first laser in the vertical plane.

[0015] The beneficial effect of the above-mentioned further technical solution is that each of the support rods can be independently fine-tuned at its tilt angle to ensure that the three first laser beams divide the horizontal plane into six equal parts in the axial direction, while the three second laser beams are coplanar with the corresponding first laser beams.

[0016] Furthermore, the adjusting component includes a hinge seat and a connecting ear. The hinge seat is disposed at the upper or lower end of the mounting base, and the connecting ear protrudes from the upper or lower end of the corresponding support rod. Each connecting ear is inserted into the corresponding hinge seat, and the two are rotatably connected. The support rod can rotate relative to the hinge seat to finely adjust the tilt angle of the second laser and the first laser in the vertical plane.

[0017] The beneficial effect of the above-mentioned further technical solution is that the support rod can be manually bent to rotate the connecting lug on it relative to the corresponding hinge seat to adjust the tilt angle of the support rod, thereby adjusting the tilt angle of the first laser and the second laser in the vertical plane.

[0018] Furthermore, the adjusting component also includes a locking bolt. The connecting lug is provided with a connecting hole parallel to the corresponding support rod. A through hole is provided on one side of the groove wall of the hinge seat, and a threaded hole aligned with the through hole is provided on the other side of the groove wall. The threaded hole is threadedly engaged with the locking bolt. The connecting hole is located between the through hole and the threaded hole, and the three are aligned with each other. The threaded end of the locking bolt passes through the through hole and the connecting hole in sequence and is threadedly connected to the threaded hole. Tightening the locking bolt can secure the connecting lug at any angle of its rotation trajectory, or loosening the locking bolt can release the support rod.

[0019] The beneficial effect of the above-mentioned further technical solution is that after the position of each support rod is adjusted to the correct position, the corresponding locking bolts can be tightened, eliminating the need for frequent adjustments later.

[0020] The second objective of this invention is to provide a simple aortic valve annulus circumferential positioning instrument that can perform high-precision positioning and marking based on the position of the leaflet suture and the position of the highest suture point during aortic valve repair surgery.

[0021] To achieve the above objectives, the technical solution of the present invention is as follows: an aortic valve annulus circumferential positioning device, comprising a support carrier and a laser-type six-part division mechanism as described above, wherein the mounting base is mounted on the support carrier.

[0022] The beneficial effect of the above technical solution is that it allows the laser-type six-part mechanism to be suspended directly above the aortic valve annulus cavity by a supporting carrier.

[0023] The above technical solution also includes a three-axis gimbal, the support carrier is a helmet, and the mounting base is installed on the brim of the helmet on the front side of the support carrier via the three-axis gimbal.

[0024] The beneficial effect of the above technical solution is that it provides medical staff with a better field of vision when performing aortic valve annulus repair surgery. Attached Figure Description

[0025] Figure 1 A schematic diagram of the aortic valve annulus in the heart; Figure 2 This is a top view of the laser-type six-part mechanism described in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the first laser beam emitted by the laser-type six-part mechanism described in Embodiment 1 of the present invention relative to the aortic valve annulus cavity; Figure 4 This is a schematic diagram of the first laser beam emitted outward and downward in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the first laser beam emitted inward and downward in Embodiment 1 of the present invention; Figure 6 This is a bottom view of the laser-type six-part division mechanism described in Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of the support rod and the first and second lasers mounted thereon as described in Embodiment 2 of the present invention; Figure 8 This is a schematic diagram of the three second laser beams on the aortic valve annulus cavity wall in Embodiment 2 of the present invention; Figure 9 This is a schematic diagram of the laser emitted by the first laser and the second laser on the same pole in Embodiment 2 of the present invention; Figure 10 This is a bottom view of the laser-type six-part division mechanism described in Embodiment 3 of the present invention; Figure 11This is a schematic diagram showing the connection between the adjusting member, the support rod, and the mounting base as described in Embodiment 3 of the present invention; Figure 12 This is a side view of the aortic valve annulus circumferential positioning device described in Embodiment 4 of the present invention; Figure 13 This is a side view of the aortic valve annulus circumferential positioning device described in Embodiment 5 of the present invention.

[0026] In the diagram: 1. Laser-type six-part mechanism; 11. Mounting base; 12. First laser; 12A. First laser beam; 13. Support rod; 131. Mounting cylinder; 1311. Actuating hole; 14. Second laser; 14A. Second laser beam; 15. Adjusting component; 151. Hinge seat; 1511. Through hole; 1512. Threaded hole; 152. Connecting ear; 1521. Connecting hole; 153. Locking bolt; 2. Support carrier; 21. Base; 22. Support rod; 23. Crossbeam; 3. Three-axis gimbal; 4. Heart; 41. Aortic valve annulus cavity; 42. Leaflet suture; 43. Highest suture point. Detailed Implementation

[0027] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0029] It is understood that spatial relation terms such as “below,” “under,” “below,” “below,” “above,” “above,” etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as “below,” “below,” or “below” will be oriented “above” the other element or feature. Therefore, the exemplary terms “below” and “under” can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0030] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0031] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0032] Example 1 like Figure 2 and Figure 3 As shown, this embodiment provides a laser-type six-part division mechanism 1, including a mounting base 11 and three first lasers 12. The mounting base 11 is horizontally arranged, and the three first lasers 12 are all line-shaped lasers, evenly spaced circumferentially in the middle of the mounting base 11. The emitting ends of the three first lasers 12 face downwards, and the laser beams emitted by the first lasers 12 are first laser beams 12A. The vertical planes containing the three first laser beams 12A intersect at an intersection point on the horizontal plane (e.g., ...). Figure 2 The "o" in the diagram represents the intersection point, and the horizontal plane is divided into six equal parts. Thus, the mounting base 11 can be placed directly above the aortic valve annulus cavity 41. The vertical planes containing the first laser beams 12A emitted by the three first lasers 12 will intersect in the middle of the aortic valve annulus cavity 41 (forming an intersection point in any horizontal plane). At this time, the three first laser beams 12A will form three circumferentially spaced, evenly distributed light spots on the cavity wall of the aortic valve annulus cavity 41. These three light spots can be used as the positions of the three leaflet joints 42. Then, the mounting base 11 is rotated 60° coaxially. At this time, the three first laser beams 12A will newly form three circumferentially spaced, evenly distributed light spots on the cavity wall of the aortic valve annulus cavity 41. These three light spots can be used as the positions of the three highest suture points 43.

[0033] like Figure 2 As shown, in this embodiment, the intersection point is located on the axis of the mounting base 11. This results in higher positioning accuracy of the laser-driven hexasection mechanism 1 for the leaflet joint 42 and the highest suture point 43.

[0034] In this embodiment, the mounting base 11 is annular, and three first lasers 12 are mounted on the mounting base 11 at intervals along the circumference. The first lasers 12 on the mounting base 11 can be tilted inward and downward or outward and downward along the radial direction of the mounting base 11, and their tilt angle relative to the radial direction of the mounting base 11 can be 45°-85° (specifically, it can be any value or a range between any two of 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, and 85°). Figure 5 As shown, when the first laser 12 is tilted inward and downward on the mounting base 11, its light spot on the wall of the aortic valve annulus 41 is located on the opposite side; as Figure 4 As shown, when the first laser 12 is tilted outward and downward on the mounting base 11 (at this time, the diameter of the circle in which the three first lasers 12 are located must be smaller than the diameter of the aortic valve annulus cavity 41), the light spot on the cavity wall of the aortic valve annulus cavity 41 is located on the same side (the opposite side and the same side are relative to the axis of the mounting base 11).

[0035] Figure 4 and Figure 5 The dashed line represents the axis of the aortic valve annulus 41.

[0036] Example 2 Same as Example 1, except that, as Figures 6-8 As shown, the laser-type six-part mechanism 1 provided in this embodiment also includes three second lasers 14. Each of the three second lasers 14 is a linear laser and is evenly spaced circumferentially on the mounting base 11. The emitting ends of the three second lasers 14 are tilted downwards, and the laser beams emitted by the second lasers 14 are second laser beams 14A. Three first lasers 12 are located in the middle between the three second lasers 14. The three first lasers 12 and the three second lasers 14 correspond one-to-one. The first laser beam 12A emitted by each first laser 12 and the second laser beam 14A emitted by the corresponding second laser 14 are coplanarly distributed in the same vertical plane. This allows the three first laser beams 12A and the three second laser beams 14A to form six evenly spaced circumferentially distributed light spots on the cavity wall of the aortic valve annulus 41. These six light spots can serve as the positions of the three leaflet sutures 42 and the three highest suture sites 43.

[0037] like Figure 9As shown, in this embodiment, the three first lasers 12 are arranged radially outward along the mounting base 11, while the three second lasers 14 are arranged radially inward along the mounting base 11. The first lasers 12 and the second lasers 14 located on the same support rod 13 correspond to each other. At this time, the light spots formed by the first laser beam 12A emitted by each first laser 12 on the wall of the aortic valve annulus cavity 41 are located on the same side, while the light spots formed by the second laser beam 14A emitted by each second laser 14 on the wall of the aortic valve annulus cavity 41 are located on the opposite side. The two light spots formed by the corresponding first lasers 12 and second lasers 14 on the wall of the aortic valve annulus cavity 41 are oppositely distributed (one serves as a marker for the leaflet joint 42, and the other serves as a marker for the highest suture point 43).

[0038] Specifically, such as Figures 6-8 As shown, the laser-type six-part mechanism 1 provided in this embodiment also includes three support rods 13. The mounting base 11 is annular, and the three support rods 13 are evenly distributed around the mounting base 11 in the circumferential direction. The middle part of each support rod 13 in the length direction is connected to the mounting base 11. One end of each support rod 13 is located inside the ring of the mounting base 11, and the other end is located outside the ring of the mounting base 11. Three first lasers 12 are respectively installed at the ends of the three support rods 13 located inside the ring of the mounting base 11, and three second lasers 14 are respectively installed at the ends of the three support rods 13 located outside the ring. This allows the three first lasers 12 and the three second lasers 14 to be distributed in a concentric circle and dispersed on the mounting base 11.

[0039] In this embodiment, the support rod 13 is radially distributed on the mounting base 11.

[0040] like Figure 9 As shown, in this embodiment, each of the first lasers 12 and the corresponding second lasers 14 is mounted on the same support rod 13; the emitting ends of the first lasers 12 and the corresponding emitting ends of the second lasers 14 are tilted close to each other. This causes the laser beams emitted by the first lasers 12 and the second lasers 14 on each support rod 13 to form two laser spots that are radially aligned with each other on the cavity wall of the aortic valve annulus cavity 41, and respectively constitute the positions of a leaflet joint 42 and the highest suture site 43.

[0041] Figure 9 The dashed line represents the axis of the aortic valve annulus 41.

[0042] like Figure 6 and Figure 7As shown, in this embodiment, both ends of the support rod 13 are provided with vertically penetrating mounting cylinders 131. The two mounting cylinders 131 on each support rod 13 are used to mount the corresponding second laser 14 and first laser 12, respectively. This makes it easier to install the first laser 12 and second laser 14 on the support rod 13. Simultaneously, the first laser 12 and second laser 14 can rotate within their respective mounting cylinders 131 to adjust the accuracy of the coplanar distribution of the laser beams emitted by the corresponding first laser 12 and second laser 14.

[0043] like Figure 7 As shown, in this embodiment, both the first laser 12 and the second laser 14 can be slightly rotated within their respective mounting cylinders 131, thereby adjusting the position of the intersection point of the three first laser beams 12A and simultaneously adjusting the accuracy of the coplanar distribution of each second laser beam 14A with the corresponding first laser beam 12A. Each mounting cylinder 131 has a through-hole 1311 on its side wall, allowing a pin to be inserted into the through-hole 1311 to slightly rotate the corresponding first laser 12 or second laser 14.

[0044] like Figure 7 As shown, in this embodiment, the mounting cylinder 131 is vertically inclined on the corresponding support rod 13, and the axes of each support rod 13 and the two mounting cylinders 131 on it are located in the same vertical plane (the inclination angle of the mounting cylinder 131 is the inclination angle of the corresponding first laser 12 or second laser 14).

[0045] like Figure 7 As shown, in this embodiment, the tilt angles of the first laser 12 and the second laser 14 relative to the corresponding support rod are β and α, respectively. Both β and α can be 45°-85° (specifically, any value or any range between any two values ​​from 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80° and 85°), and the tilt angles of the first laser 12 and the second laser 14 can be different.

[0046] Example 3 Same as Example 2, except that, as Figure 10 and Figure 11As shown, in this embodiment, three adjusting members 15 are spaced circumferentially on the mounting base 11. Each of the three adjusting members 15 corresponds to one of the three support rods 13. Each support rod 13 is mounted on the mounting base 11 via a corresponding adjusting member 15. The adjusting member 15 is used to adjust the tilt angle of the corresponding support rod 13 in the vertical plane, thereby fine-tuning the tilt angles of the second laser 14 and the first laser 12 in the vertical plane. This allows each support rod 13 to have its tilt angle independently fine-tuned, ensuring that the three first laser beams 12A divide the horizontal plane into six equal parts axially, while the three second laser beams 14A are coplanar with their corresponding first laser beams 12A.

[0047] like Figure 11 As shown, in this embodiment, the adjusting member 15 includes a hinge seat 151 and a connecting ear 152. The hinge seat 151 is disposed at the upper or lower end of the mounting base 11, and the connecting ear 152 protrudes from the upper or lower end of the corresponding support rod 13. Each connecting ear 152 is inserted into the corresponding hinge seat 151, and the two are rotatably connected. The support rod 13 can rotate relative to the hinge seat 151 to finely adjust the tilt angle of the second laser 14 and the first laser 12 in the vertical plane. In this way, the support rod 13 can be manually bent to rotate the connecting ear 152 relative to the corresponding hinge seat 151 to adjust the tilt angle of the support rod 13, thereby adjusting the tilt angle of the corresponding first laser 12 and second laser 14 in the vertical plane.

[0048] like Figure 11 As shown, in this embodiment, the adjusting member 15 further includes a locking bolt 153. The connecting lug 152 is provided with a connecting hole 1521 parallel to the corresponding support rod 13. A through hole 1511 is provided on one side of the groove wall of the hinge seat 151, and a threaded hole 1512 aligned with the through hole 1511 is provided on the other side of the groove wall. The threaded hole 1512 is threadedly engaged with the locking bolt 153. The connecting hole 1521 is located between the through hole 1511 and the threaded hole 1512, and the three are aligned with each other. The threaded end of the locking bolt 153 passes through the through hole 1511 and the connecting hole 1521 in sequence and is threadedly connected to the threaded hole 1512. Tightening the locking bolt 153 can secure the connecting lug 152 at any angle of its rotation trajectory, or loosening the locking bolt 153 can loosen the support rod 13. After each support rod 13 is properly positioned, the corresponding locking bolt 153 can be tightened, eliminating the need for frequent adjustments later.

[0049] Example 4 like Figure 12As shown, this embodiment provides an aortic valve annulus cavity circumferential positioning device, including a support carrier 2 and a laser-type six-part division mechanism 1 as described in Embodiments 1, 2, or 3, wherein the mounting base 11 is mounted on the support carrier 2. This allows the laser-type six-part division mechanism 1 to be suspended directly above the aortic valve annulus cavity 41 via the support carrier 2.

[0050] like Figure 12 As shown, in this embodiment, the support carrier 2 includes a base 21, a support rod 22, and a crossbeam 23. The base 21 is horizontally arranged, the support rod 22 is vertically arranged at the upper end of the base 21, the crossbeam 23 is horizontally arranged, and one end of the crossbeam 23 is connected to the upper end of the support rod 22. The upper end of the mounting base 11 is connected to the other end of the crossbeam 23.

[0051] When the laser-type six-part mechanism 1 adopts the scheme corresponding to Embodiment 1, the mounting base 11 and the support carrier 2 can be rotatably connected, and its maximum rotation angle is limited to 60° (that is, the mounting base 11 can be coaxially rotated 60° to adjust the orientation of the three first lasers 12, so that the three leaflet joints 42 can be marked first, and then the three highest suture points 43 can be marked, or the three highest suture points 43 can be marked first, and then the three leaflet joints 42 can be marked).

[0052] Example 5 Same as Example 4, except that, as Figure 13 As shown, the aortic valve annulus cavity circumferential positioning device in this embodiment also includes a three-axis gimbal 3, the support carrier 2 is a helmet, and the mounting base 11 is mounted on the brim of the helmet on the front side of the support carrier 2 through the three-axis gimbal 3, so that the medical staff have a better field of vision when performing aortic valve annulus cavity 41 repair surgery.

[0053] In this embodiment, the three-axis gimbal 3 can adopt the structure disclosed in document CN113551126B, "A Three-Axis Self-Stabilizing Gimbal".

[0054] When using the aortic valve annulus cavity circumferential positioning device, medical staff wear the support carrier 2 on their heads and simultaneously adjust the laser-type six-part mechanism 1 to be directly above the aortic valve annulus cavity 41. Then, they adjust the three first laser beams 12A to align with the three valve leaflets 43 respectively. At this time, the three second laser beams 14A form three light lines on the cavity wall of the aortic valve annulus cavity 41, and the medical staff can then perform aortic valve repair surgery. The three-axis gimbal 3 can keep the laser-type six-part mechanism 1 directly above the aortic valve annulus cavity 41 even when the medical staff's head is shaking (i.e., keep the laser-type six-part mechanism 1 and the aortic valve annulus cavity 41 relatively stationary).

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser-driven six-part division mechanism, characterized in that, The device includes a mounting base (11) and three first lasers (12). The mounting base (11) is horizontally positioned. The three first lasers (12) are all line-shaped lasers and are evenly spaced around the center of the mounting base (11). The emitting ends of the three first lasers (12) are tilted downwards. The laser beam emitted by the first lasers (12) is the first laser beam (12A). The vertical planes containing the three first laser beams (12A) intersect at a point on the horizontal plane and divide the horizontal plane into six equal parts.

2. The laser-type six-part division mechanism according to claim 1, characterized in that, It also includes three second lasers (14), all of which are line-shaped lasers and are evenly spaced along the circumference on the mounting base (11). The emitting ends of the three second lasers (14) are tilted downwards. The laser beam emitted by the second lasers (14) is the second laser beam (14A). The three first lasers (12) are located in the middle between the three second lasers. The three first lasers (12) and the three second lasers (14) correspond one-to-one. The first laser beam (12A) emitted by each first laser (12) and the second laser beam (14A) emitted by the corresponding second laser (14) are coplanarly distributed in the same vertical plane.

3. The laser-type six-part division mechanism according to claim 2, characterized in that, It also includes three support rods (13). The mounting base (11) is annular. The three support rods (13) are evenly distributed around the mounting base (11) in the circumferential direction. The middle part of each support rod (13) in the length direction is connected to the mounting base (11). One end of each support rod (13) is located inside the ring of the mounting base (11), and the other end is located outside the ring of the mounting base (11). The three first lasers (12) are respectively installed at the end of the three support rods (13) located inside the ring of the mounting base (11), and the three second lasers (14) are respectively installed at the end of the three support rods (13) located outside the ring.

4. The laser-type six-part division mechanism according to claim 3, characterized in that, Each of the first lasers (12) and the corresponding second lasers (14) is mounted on the same support rod (13); the emitting ends of the first lasers (12) and the emitting ends of the corresponding second lasers (14) are tilted close to each other.

5. The laser-type six-part division mechanism according to claim 3, characterized in that, Both ends of the support rod (13) are provided with mounting cylinders (131) that run vertically through each other. The two mounting cylinders (131) on each support rod (13) are used to install the corresponding second laser (14) and first laser (12).

6. The laser-type hexagram mechanism according to any one of claims 3-5, characterized in that, The mounting base (11) is circular, and three adjusting members (15) are arranged circumferentially on the mounting base (11). The three adjusting members (15) correspond one-to-one with the three support rods (13). Each support rod (13) is mounted on the mounting base (11) through the corresponding adjusting member (15). The adjusting member (15) is used to adjust the tilt angle of the corresponding support rod (13) in the vertical plane, so as to fine adjust the tilt angle of the second laser (14) and the first laser (12) in the vertical plane.

7. The laser-type hexagram mechanism according to claim 6, characterized in that, The adjusting component (15) includes a hinge seat (151) and a connecting ear (152). The hinge seat (151) is disposed at the upper or lower end of the mounting base (11). The connecting ear (152) protrudes from the upper or lower end of the corresponding support rod (13). Each connecting ear (152) is inserted into the corresponding hinge seat (151) and the two are rotatably connected. The support rod (13) can rotate relative to the hinge seat (151) to finely adjust the tilt angle of the second laser (14) and the first laser (12) in the vertical plane.

8. The laser-type six-part division mechanism according to claim 7, characterized in that, The adjusting member (15) also includes a locking bolt (153). The connecting lug (152) is provided with a connecting hole (1521) parallel to the corresponding support rod (13). A through hole (1511) is provided on one side of the groove wall of the hinge seat (151), and a threaded hole (1512) aligned with the through hole (1511) is provided on the groove wall on the other side. The threaded hole (1512) is threadedly engaged with the locking bolt (153). 21) Located between the through hole (1511) and the threaded hole (1512), and the three are aligned with each other, the threaded end of the locking bolt (153) passes through the through hole (1511) and the connecting hole (1521) in sequence, and is threadedly connected to the threaded hole (1512). Tighten the locking bolt (153) to secure the connecting lug (152) at any angle of its rotation trajectory, or loosen the locking bolt (153) to loosen the support rod (13).

9. A circumferential positioning device for the aortic valve annulus, characterized in that, It includes a support carrier (2) and a laser-type six-part mechanism (1) as described in any one of claims 1-8, wherein the mounting base (11) is mounted on the support carrier (2).

10. The aortic valve annulus circumferential positioning device according to claim 9, characterized in that, It also includes a three-axis gimbal (3), the support carrier (2) is a helmet, and the mounting base (11) is mounted on the brim of the helmet on the front side of the support carrier (2) through the three-axis gimbal (3).

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