Puncture positioning handle

Abstract

The utility model provides a kind of puncture positioning handle, it is related to medical navigation technical field, including positioning part and handle, at least one positioning patch is equipped on positioning part, positioning patch is configured as can be identified by medical navigation system, positioning part middle part is equipped with the aperture for puncture needle to pass through;The bottom of positioning part is used to adhere to the skin surface of patient, handle is connected with positioning part, and the included angle of the plane where handle is and aperture axis is 5 ° to 30 °.Puncture positioning handle simple structure, including positioning part and handle, positioning part is only set one aperture for puncture needle to pass through, after positioning patch is identified by medical navigation system, medical navigation system can calculate the position of aperture according to the position of positioning patch, so as to can match the position of aperture and the preoperative planning operation path of medical navigation system, realize medical navigation effect.

Description

Technical Field

[0001] This utility model relates to the field of medical navigation technology, and in particular to a puncture positioning handle. 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 a puncture positioning handle to solve the problem of inconvenience in using auxiliary positioning markers in the prior art.

[0006] This utility model provides a puncture positioning handle, including a positioning part and a handle. The positioning part is provided with at least one positioning patch, which is configured to be recognizable by a medical navigation system. The positioning part has an opening in the middle for the puncture needle to pass through. The bottom of the positioning part is used to fit against the patient's skin surface. The handle is connected to the positioning part, and the angle between the plane of the handle and the axis of the opening is 5° to 30°.

[0007] In an optional implementation, the positioning patch is an annular patch, which is arranged around the opening.

[0008] In an optional implementation, the number of positioning patches is at least two, and they are distributed asymmetrically or symmetrically along the surface of the positioning part.

[0009] In an optional implementation, the positioning patch is positioned to avoid the area where the opening is located.

[0010] In an optional implementation, the diameter of the opening is 1-5 mm and the length of the opening is 5-15 mm.

[0011] In an optional embodiment, the angle between the plane of the handle and the axis of the opening is 10° to 20°.

[0012] In an alternative implementation, the positioning patch includes an optical reflective film or a magnetic coating.

[0013] In an optional embodiment, the bottom of the positioning part is provided with a concave deformation avoidance cavity.

[0014] In an optional implementation, the deformation avoidance cavity is centrally located, and the opening passes through the deformation avoidance cavity.

[0015] In an optional embodiment, a boss is provided at the connection between the positioning part and the handle, the edge of the boss matches the shape of the positioning patch, and the upper surface of the boss is coplanar with the upper surface of the positioning patch.

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

[0017] 1. The puncture positioning handle has a simple structure, consisting of a positioning part and a handle. The positioning part has only one opening for the puncture needle to pass through. After the positioning patch is recognized by the medical navigation system, the medical navigation system can calculate the position of the opening based on the position of the positioning patch, thereby matching the position of the opening with the preoperative surgical path planned by the medical navigation system to achieve the medical navigation effect.

[0018] 2. The angle between the plane of the handle and the axis of the opening is 5° to 30°, so that when the positioning part is in contact with the patient's skin surface, the handle is relatively vertical to the patient's skin, which makes it easy for the operator to move and fix the puncture positioning handle on the patient's skin surface.

[0019] 3. The entire puncture positioning handle has a simple structure, which reduces the burden on the operator. Especially for skilled operators, the puncture positioning handle has less impact on the operator's experience-based operation, making it easier for the operator to quickly accept the procedure. Attached Figure Description

[0020] 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.

[0021] Figure 1 One of the three-dimensional structural schematic diagrams of the puncture positioning handle provided in the embodiment of this utility model;

[0022] Figure 2 A second three-dimensional structural schematic diagram of the puncture positioning handle provided in an embodiment of this utility model;

[0023] Figure 3 A side view of the puncture positioning handle provided in an embodiment of this utility model;

[0024] Figure 4 This is a top view of the puncture positioning handle provided in an embodiment of the present invention.

[0025] Explanation of main component symbols: 100-positioning part; 110-opening; 120-deformation clearance cavity; 200-handle; 300-positioning patch; 400-boss. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] This utility model embodiment provides a puncture positioning handle, such as Figures 1 to 4 As shown, the device includes a positioning part 100 and a handle 200. The positioning part 100 is provided with at least one positioning patch 300, which is configured to be recognizable by a medical navigation system. The positioning part 100 has an opening 110 in the middle for a puncture needle to pass through. The bottom of the positioning part 100 is used to fit against the patient's skin surface. The handle 200 is connected to the positioning part 100, and the angle between the plane of the handle 200 and the axis of the opening 110 is 5° to 30°.

[0034] in, Figure 1 One of the three-dimensional structural schematic diagrams of the puncture positioning handle provided in the embodiment of this utility model is a view of the puncture positioning handle viewed from above the positioning part 100. Figure 2 The second three-dimensional structural schematic diagram of the puncture positioning handle provided in this embodiment of the utility model is the view of the puncture positioning handle viewed from below the positioning part 100 and upwards. Figure 3 A side view of the puncture positioning handle provided in an embodiment of this utility model; Figure 4 This is a top view of the puncture positioning handle provided in an embodiment of the present invention.

[0035] When using the puncture positioning handle, the operator holds the handle 200 in conjunction with the medical navigation system. The recognition module of the medical navigation system can identify the positioning patch 300 and match the surgical path planning provided by the medical navigation system with the positioning patch 300 on the positioning part 100, thereby aligning the opening 110 with the predetermined puncture point, and the puncture needle passes through the opening 110 for puncture. The operator holds the handle 200, and the lower surface of the positioning part 100 can conform to the patient's skin surface. The operator moves the handle to match the opening on the positioning part 100 with the predetermined puncture point of the medical navigation system. The medical navigation system can identify the positioning patch 300 on the one hand, and form visual elements in the operator's field of vision through AR, VR or MR devices on the other hand. The visual elements are the surgical plan. The operator can move the puncture positioning handle and match the positioning patch 300 on the positioning part 100 with the visual elements, so that the opening 110 of the positioning part 100 coincides with the visual elements, thereby determining the position of the opening 110. The opening 110 can determine the puncture point and assist the puncture operation in finding the correct point.

[0036] The operator can be a doctor or other personnel assisting the doctor in the procedure, such as a physician assistant or nurse.

[0037] The auxiliary puncture positioning device provided in this embodiment has the following beneficial effects:

[0038] 1. The puncture positioning handle has a simple structure, including a positioning part 100 and a handle 200. The positioning part 100 is provided with only one opening 110 for the puncture needle to pass through. After the positioning patch 300 is recognized by the medical navigation system, the medical navigation system can calculate the position of the opening 110 based on the position of the positioning patch 300, so that the position of the opening 110 can be matched with the preoperative surgical path planned by the medical navigation system to achieve the medical navigation effect.

[0039] 2. The angle between the plane of the handle 200 and the axis of the opening 110 is 5° to 30°, so that when the positioning part 100 is in contact with the patient's skin surface, the handle 200 is relatively vertical to the patient's skin, which makes it easier for the operator to move and fix the puncture positioning handle on the patient's skin surface.

[0040] 3. The entire puncture positioning handle has a simple structure, which reduces the burden on the operator. Especially for skilled operators, the puncture positioning handle has less impact on the operator's experience-based operation, making it easier for the operator to quickly accept the procedure.

[0041] In some embodiments, the positioning patch 300 is an annular patch, and the positioning patch 300 is disposed around the opening 110.

[0042] In some embodiments, the number of positioning patches 300 is at least two, and they are distributed asymmetrically or symmetrically along the surface of the positioning portion 100.

[0043] In some embodiments, the positioning patch 300 is positioned to avoid the area where the opening 110 is located.

[0044] In some embodiments, the diameter of the opening 110 is 1-5 mm, and the length of the opening 110 is 5-15 mm.

[0045] In some embodiments, the angle between the plane of the handle 200 and the axis of the opening 110 is 10° to 20°.

[0046] In some embodiments, the positioning patch 300 includes an optical reflective film or a magnetic coating.

[0047] In some embodiments, the bottom of the positioning part 100 is provided with a concave deformation avoidance cavity 120.

[0048] In some embodiments, the deformation avoidance cavity 120 is centrally located, and the opening 110 passes through the deformation avoidance cavity 120.

[0049] In some embodiments, a boss 400 is provided at the connection between the positioning part 100 and the handle 200, the edge of the boss 400 matches the shape of the positioning patch 300, and the upper surface of the boss 400 is coplanar with the upper surface of the positioning patch 300.

[0050] In some embodiments, such as Figure 4 As shown, the positioning patch 300 is an annular patch, and the positioning patch 300 is arranged around the opening 110.

[0051] The geometric center of the annular patch can coincide with the axis of the opening 110, which facilitates rapid identification and matching by the medical navigation system. After the medical navigation system identifies the positioning patch 300 of the annular patch, it can quickly calculate the geometric center position, which facilitates rapid response. For skilled operators, rapid response is better than precise or complete medical navigation assistance, and operators have a higher acceptance rate.

[0052] In some embodiments, the number of positioning patches 300 is at least two, and they are distributed asymmetrically or symmetrically along the surface of the positioning portion 100.

[0053] Symmetrically distributed positioning patches 300 can enhance the redundancy and robustness of the positioning system. When some positioning patches 300 fail due to operation obstruction or accident, the remaining positioning patches 300 can still compensate for the missing data through symmetry and maintain positioning accuracy.

[0054] The asymmetrically distributed positioning patches 300 facilitate the provision of more location information and can be verified with each other, thereby improving the accuracy of the medical navigation system in identifying the positioning patches 300 and calculating their location coordinates.

[0055] In some embodiments, the positioning patch 300 includes an optical reflective film. The optical reflective film may be an infrared reflective film to avoid interference from visible light. Correspondingly, the medical navigation system is equipped with an infrared transmitter and receiver for active infrared detection and identification.

[0056] In some embodiments, the positioning patch 300 includes a magnetic coating. This magnetic coating can be compatible with electromagnetic navigation systems, making it suitable for a wider range of medical navigation systems.

[0057] In the above embodiments, such as Figure 4 As shown, the position of the positioning patch 300 also avoids the area where the opening 110 is located.

[0058] By placing the patch around the periphery of the opening 110, contamination of the patch surface with blood, tissue fluid, or disinfectant during the puncture process can be avoided, ensuring the signal stability of the optical reflective film or magnetic coating. Furthermore, the puncture needle will not come into contact with the patch during the puncture, preventing the patch material from affecting the puncture needle's operation and ensuring the safety of the puncture procedure.

[0059] In some embodiments, the diameter of the opening 110 is 1-5 mm and the length of the opening 110 is 5-15 mm.

[0060] This size range is compatible with commonly used clinical puncture needle specifications, ensuring free passage of the puncture needle while avoiding excessive size that would increase the dimensions of the positioning part 100 and the puncture positioning handle. The opening 110 is designed to be 5-15 mm in length, forming a guide channel structure and avoiding excessive thickness of the entire positioning part 100, which would make operation inconvenient. This achieves a balance between providing guidance and avoiding increasing the operator's burden.

[0061] In some embodiments, such as Figure 3 As shown, the angle between the plane of the handle 200 and the axis of the opening 110 is further limited to 10° to 20°.

[0062] The 10°-20° tilt angle optimizes the ergonomic design of the handle 200: when the positioning part 100 is in contact with the skin, the handle 200 naturally tilts upward, keeping the operator's wrist in a neutral position and reducing fatigue during long-term operation; at the same time, this angle can provide the operator with a wider field of vision without sacrificing grip stability, making it easier for the operator to move and fix the puncture positioning handle.

[0063] In some embodiments, such as Figure 2 As shown, the bottom of the positioning part 100 is provided with a concave deformation avoidance cavity 120.

[0064] The deformation avoidance cavity 120 is designed with local material thinning or curved surface so that when the bottom of the positioning part 100 is in contact with the skin, especially when pressing the skin, the skin can deform appropriately toward the deformation avoidance cavity 120. At this time, the skin is appropriately tightened after deformation, which makes it easier to puncture.

[0065] In some embodiments, such as Figure 2 As shown, the deformation avoidance cavity 120 is centrally located, and the opening 110 passes through the deformation avoidance cavity 120.

[0066] The centrally designed deformation avoidance cavity 120 is coaxial with the opening 110, so that the puncture needle is always in the central area of ​​the cavity when passing through the opening 110. This ensures that the puncture needle can be punctured from the part of the skin with the greatest degree of deformation, which is also the part of the skin with the most tautness, making it easier to puncture.

[0067] In some embodiments, such as Figure 1 , Figure 3 and Figure 4 As shown, a boss 400 is provided at the connection between the positioning part 100 and the handle 200. The edge of the boss 400 matches the shape of the positioning patch 300, and the upper surface of the boss 400 is coplanar with the upper surface of the positioning patch 300.

[0068] The boss 400 provides a support platform for the positioning patch 300 through geometric matching, making it easier for the positioning patch 300 to be installed on the positioning part 100 and reducing coordinate calculation errors caused by the tilt of the positioning patch 300. The coplanar design makes the positioning patch 300 and the upper surface of the boss 400 form a continuous surface, which can also prevent the positioning patch 300 from being tilted due to accidental bumps, ensuring the accuracy and stability of the position. At the same time, the boss 400 can also increase the structural thickness at the connection between the positioning part 100 and the handle 200, thereby increasing the connection strength. Correspondingly, the dimensions of the handle 200 and the positioning part 100 can be appropriately reduced, and the boss 400 can still ensure the overall strength of the puncture positioning handle, especially the strength of the connection structure.

[0069] 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. A piercing positioning handle, characterized by, The device includes a positioning part (100) and a handle (200). The positioning part (100) is provided with at least one positioning patch (300), which is configured to be recognizable by a medical navigation system. The positioning part (100) has an opening (110) in the middle for a puncture needle to pass through. The bottom of the positioning part (100) is used to conform to the patient's skin surface. The handle (200) is connected to the positioning part (100), and the angle between the plane of the handle (200) and the axis of the opening (110) is 5° to 30°.

2. The piercing positioning handle of claim 1, wherein, The positioning patch (300) is an annular patch, and the positioning patch (300) is arranged around the opening (110).

3. The piercing positioning handle of claim 1, wherein, The number of the positioning patches (300) is at least two, and they are distributed asymmetrically or symmetrically along the surface of the positioning part (100).

4. The piercing positioning handle according to any one of claims 1 to 3, characterized in that The positioning patch (300) is positioned to avoid the area where the opening (110) is located.

5. The piercing positioning handle of claim 1, wherein, The diameter of the opening (110) is 1-5 mm, and the length of the opening (110) is 5-15 mm.

6. The piercing positioning handle of claim 1, wherein, The angle between the plane of the handle (200) and the axis of the opening (110) is 10° to 20°.

7. The piercing positioning handle of claim 1, wherein, The positioning patch (300) includes an optical reflective film or a magnetic coating.

8. The piercing positioning handle of claim 1, wherein, The bottom of the positioning part (100) is provided with a concave deformation avoidance cavity (120).

9. The piercing positioning handle of claim 8, wherein, The deformation avoidance cavity (120) is centrally located, and the opening (110) passes through the deformation avoidance cavity (120).

10. The piercing positioning handle of claim 1, wherein, A boss (400) is provided at the connection between the positioning part (100) and the handle (200). The edge of the boss (400) matches the shape of the positioning patch (300), and the upper surface of the boss (400) is coplanar with the upper surface of the positioning patch (300).

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