Puncture guide needle used in cooperation with electromagnetic navigation system
By designing a puncture guide needle with built-in solenoid coil and the electromagnetic navigation system, the problems of complex operation and radiation risks of traditional puncture needles are solved, precise puncture and intraoperative navigation are achieved, and the risk of infection is reduced.
Patent Information
- Application Number
- CN202421418838.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-06-20
AI Technical Summary
Traditional puncture needles are complicated to operate and need to be exposed to radiation for a long time, which poses radiation risk, and the surgical operation is not synchronized with imaging, making it difficult to avoid damage to adjacent organs or tissues. It is easy to cause metastasis of malignant tumor cells when removing the needle.
Design a puncture guide needle that matches the electromagnetic navigation system, with a built-in solenoid coil, combining the magnetic field and CT data of the electromagnetic navigation system to realize real-time image display and navigation assistance, and use it with traditional puncture needles through the guide needle.
It reduces the risk of surgical infection, improves operational accuracy and work efficiency, and realizes intraoperative navigation and precise puncture.
Smart Images
Figure CN223169791U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to a puncture guiding needle used in conjunction with an electromagnetic navigation system. Background Art
[0002] A puncture needle is a medical device for sampling and injecting tissues of organs in minimally invasive surgeries in multiple departments. The function of the puncture needle is to perform a puncture biopsy. The tumor tissue is taken by the puncture needle and sent for pathology for cytological and histological examinations to clarify the nature of the tumor and provide a basis for formulating clinical treatment strategies. During traditional surgeries, patients need to be exposed to the radiation range for a long time, which poses a radiation risk. And doctors operate through intraoperative images, and the surgical operation and intraoperative imaging are only nearly synchronous during the operation. When using the puncture needle, attention should be paid to avoiding lateral damage to adjacent organs or tissues, especially blood vessels and nerves; and the needle extraction and retraction cannot be repeated to avoid the implantation and metastasis of malignant tumor cells, which places high requirements on the doctor's operation skills.
[0003] The magnetic navigation surgical system is a new surgical solution for treating surgical diseases, which can help doctors complete various surgical operations more excellently. Based on this, the present application designs a puncture guiding needle used in conjunction with an electromagnetic navigation system. Summary of the Utility Model
[0004] In order to solve the problems existing in the prior art, the present application proposes a puncture guiding needle used in conjunction with an electromagnetic navigation system.
[0005] In order to achieve the above object, the present application proposes a puncture guiding needle used in conjunction with an electromagnetic navigation system, including a guiding needle. The guiding needle is tubular and one end is closed. Two electromagnetic coils are sequentially arranged in the inner cavity of the guiding needle near the closed end. The other end of the guiding needle is fixed in a guiding needle channel provided in a connection box. A winding post and an outlet channel are also provided in the connection box. The coil wires led out from the electromagnetic coils sequentially pass through the inner cavity of the guiding needle and the guiding needle channel and then are wound around the winding post, and then are led out through the outlet channel. The coil wires are connected to a plug, and the plug is used to connect to the electromagnetic navigation system.
[0006] In some embodiments, the connection box includes an upper cover and a lower cover, which are detachably connected. The guiding needle channel, the winding post and the outlet channel are respectively provided in the lower cover.
[0007] In some embodiments, the included angle α between the guiding needle channel and the outlet channel is 135°≤α≤165°.
[0008] The beneficial effect of this solution of the present application lies in the puncture guiding needle used in conjunction with the electromagnetic navigation system. When used in conjunction with a traditional puncture needle and utilizing the magnetic field generated by the electromagnetic navigation system and the pre-imported CT data of the patient, real-time images can be obtained on the display device of the electromagnetic navigation system. The electromagnetic navigation system can track the puncture guiding needle involved in the present application in real time within the magnetic field range, and thus can display the surgical site and the position of the puncture needle through the electromagnetic navigation system, realizing intraoperative navigation, assisting the doctor to complete the puncture, reducing the risk of infection, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 FIG. shows a schematic structural diagram of a puncture guiding needle used in conjunction with an electromagnetic navigation system in an embodiment.
[0010] Figure 2 FIG. shows Figure 1 an enlarged schematic diagram of M in
[0011] Figure 3 FIG. shows a schematic diagram of a guiding needle and a connection box in an embodiment.
[0012] Figure 4 FIG. shows a schematic structural diagram of the interior of the connection box in an embodiment.
[0013] Figure 5 FIG. shows a schematic diagram of the usage state of a puncture guiding needle used in conjunction with an electromagnetic navigation system in an embodiment.
[0014] Reference numerals: A - puncture guiding needle, B - puncture needle, 1 - guiding needle, 2 - connection box, 3 - coil wire, 4 - plug, 5 - electromagnetic coil, 201 - upper cover, 202 - lower cover, 2021 - guiding needle channel, 2022 - winding post, 2023 - wire outlet channel. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The following further describes the specific embodiments of the present application in conjunction with the drawings.
[0016] In the description of the present application, it should be understood that the terms "first", "second", etc. are used to distinguish similar objects, rather than to describe or represent a specific order or sequence. The terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present application.
[0017] As Figures 1 to 5As shown in the figure, the puncture guiding needle used in conjunction with the electromagnetic navigation system involved in this application includes a guiding needle 1. The guiding needle 1 is tubular and one end is closed. For example, it is made of a stainless steel hollow tube. In the inner cavity of the guiding needle 1 near the closed end, two electromagnetic coils 5 are sequentially arranged. In this embodiment, the two electromagnetic coils 5 are fixed in the inner cavity of the guiding needle 1 by UV glue. The other end of the guiding needle 1 is fixed in a guiding needle channel 2021 provided in a connection box 2. A wire winding post 2022 and a wire outlet channel 2023 are also provided in the connection box 2. The coil wires 3 led out from the electromagnetic coils 5 sequentially pass through the inner cavity of the guiding needle 1 and the guiding needle channel 2021 and then are wound around the wire winding post 2022, and then are led out through the wire outlet channel 2023. The coil wires 3 are connected to a plug 4, and the plug 4 is used to connect to the electromagnetic navigation system.
[0018] In this embodiment, the connection box 2 includes an upper cover 201 and a lower cover 202, which are detachably connected. The guiding needle channel 2021, the wire winding post 2022, and the wire outlet channel 2023 are respectively provided in the lower cover 202. Through the above structural design, the installation and maintenance of the coil wires 3 can be facilitated.
[0019] In order to prevent the coil wires 3 from interfering with hand operations during use, the included angle α between the guiding needle channel 2021 and the wire outlet channel 2023 is 135° ≤ α ≤ 165°.
[0020] In the specific use process, the puncture guiding needle A used in conjunction with the electromagnetic navigation system involved in this application is used in conjunction with a traditional puncture needle B. The outer diameter of the guiding needle 1 matches the inner diameter of the puncture needle B, and the guiding needle 1 is inserted into the puncture needle B. Specifically, the outer diameter of the guiding needle 1 can have multiple specifications to adapt to the puncture needles B in the prior art. For example, the outer diameter can have specifications such as 0.9 mm, 1.2 mm, 1.6 mm, 2 mm, etc., and the inner diameter of the guiding needle 1 is 0.7 mm. During use, registration and path planning are completed on the software of the electromagnetic navigation system. The electromagnetic navigation system will automatically identify the positions of the electromagnetic coils 5 in the puncture guiding needle A. Since the relative positions of the guiding needle 1 and the puncture needle B are fixed, the position of the puncture needle B can be known; then puncture is performed according to the real-time position displayed by the electromagnetic navigation system. After the puncture is completed, the puncture guiding needle A is pulled out, and then the traditional puncture needle B can be used for sampling biopsy.
[0021] The puncture guiding needle used in conjunction with the electromagnetic navigation system involved in this application has a simple structure and is convenient for cleaning, which can reduce the infection risk during the operation. The puncture guiding needle is internally provided with an electromagnetic coil, and when used in conjunction with the electromagnetic navigation system, it can enable the electromagnetic navigation system to track the puncture guiding needle within the magnetic field range. When used in conjunction with a traditional puncture needle, it can further display the position of the surgical site and the puncture needle through the electromagnetic navigation system, realizing intraoperative navigation, guiding the doctor to find the accurate lesion position, and achieving the effect of precise puncture.
[0022] The above is only the preferred specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application, according to the technical solution and its concept of this application, making equivalent replacements or changes should be covered within the protection scope of this application.
Claims
1. A puncture guiding needle used in conjunction with an electromagnetic navigation system, characterized in that: It includes a guide needle. The guide needle is tubular and has one end closed. Two electromagnetic coils are successively arranged in the inner cavity of the guide needle near the closed end. The other end of the guide needle is fixed in a guide needle channel provided in a connection box. A winding post and an outgoing line channel are also provided in the connection box. The coil wires led out from the electromagnetic coils successively pass through the inner cavity of the guide needle and the guide needle channel and then are wound around the winding post, and then are led out through the outgoing line channel. The coil wires are connected to a plug, and the plug is used to connect to an electromagnetic navigation system.
2. The puncture guiding needle used in conjunction with the electromagnetic navigation system according to claim 1, wherein: The connection box includes an upper cover and a lower cover, which are detachably connected. The guide needle channel, the winding post and the outgoing line channel are respectively provided in the lower cover.
3. The puncture guiding needle used in conjunction with an electromagnetic navigation system according to claim 1, characterized in that: The included angle α between the guide needle channel and the outgoing line channel is 135°≤α≤165°.