Magnetically compatible use biopsy needle

Abstract

The utility model discloses a magnetic compatible biopsy needle which comprises a handle, a moving groove is formed in the upper surface of the handle, a first sealing ring is fixedly connected to the right side face of the handle, a second sealing ring is fixedly connected to the right side face of the handle, a moving plate is slidably connected to the inner wall of the moving groove, and an upper chord plate is fixedly connected to the upper surface of the moving plate. The left side face of the handle is in through connection with a needle rod, the outer surface of the needle rod is fixedly connected with a magnetic compatible sheath, the left side face of the needle rod is provided with a needle head, and the inner wall of the handle is fixedly connected with an insulating layer. It is ensured that the medical device does not interfere with the magnetic field in a magnetic resonance imaging environment by means of a non-magnetic coating and a magnetically compatible sheath, which is very important for a patient because it allows the patient to use the device while undergoing an MRI examination without affecting the imaging quality or safety, the leakage of current through the device can be prevented by means of an insulating layer, and the reliability of the device is improved. An operator is protected from the risk of electric shock, and the safety of medical operation is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a magnetically compatible biopsy needle. Background Art

[0002] A biopsy needle is a medical tool used to obtain tissue samples. It is usually used in diagnostic surgery to help doctors obtain internal body tissue or cell samples for laboratory examination and diagnosis. The biopsy needle punctures the skin and directly reaches a specific part of the body, then sucks out or cuts a small piece of tissue or cells. This process is usually guided by imaging technology, such as X-rays, CT scans, ultrasound or MRI.

[0003] However, traditional biopsy needles have some problems when used in MRI environments. Since biopsy needles are usually made of magnetic materials, when placed in a strong magnetic field, the biopsy needles will be offset or shifted by the magnetic force, resulting in inaccurate biopsy position. Therefore, it is of great significance to study a magnetically compatible biopsy needle. Utility Model Content

[0004] The purpose of the utility model is to provide a magnetically compatible biopsy needle to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A magnetically compatible biopsy needle comprises a handle, the upper surface of which is provided with a movable groove, the right side surface of the handle is fixedly connected with a first sealing ring, the right side surface of the handle is fixedly connected with a second sealing ring, the inner wall of the movable groove is slidably connected with a movable plate, the upper surface of the movable plate is fixedly connected with an upper chord plate, the left side of the handle is through-connected with a needle rod, the outer surface of the needle rod is fixedly connected with a magnetically compatible sheath, the left side of the needle rod is provided with a needle head, the inner wall of the handle is fixedly connected with an insulating layer, the top end of the inner wall of the handle is fixedly connected with a blocking plate, the right side surface of the blocking plate is fixedly connected with a magnetic element, the left side of the handle is fixedly connected with an inner tube, and the outer surface of the inner tube is fixedly connected with a non-magnetic coating.

[0007] In a further embodiment, a string release button is fixedly connected to the upper surface of the handle, an indicator light is fixedly connected to the upper surface of the handle, and the bottom surface of the string release button passes through the handle and is connected to the movable plate.

[0008] In a further embodiment, a needle tube protective sleeve is sleeved on the left side of the second sealing ring, a measuring scale is provided on the outer surface of the needle rod, and the needle tube protective sleeve is made of polytetrafluoroethylene.

[0009] In a further embodiment, a moving block is fixedly connected to the bottom surface of the moving plate, a fixed block is fixedly connected to the top of the inner wall of the handle, and a traction spring is fixedly connected to a side surface of the moving block and the fixed block close to each other.

[0010] In a further embodiment, the first sealing ring is sleeved with a connecting wire, and the outer surface of the connecting wire is coated with insulating paint.

[0011] In a further embodiment, an inner core groove is formed on the upper surface of the inner tube, and a barb is fixedly connected to the upper surface of the inner core groove.

[0012] In a further embodiment, an anti-slip cover is provided on the outer surface of the handle, and the material of the anti-slip cover is silicone.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the non-magnetic coating and the magnetically compatible sheath ensure that the medical device does not interfere with the magnetic field in the magnetic resonance imaging environment, which is very important for patients because it allows patients to use the device while undergoing MRI examination without affecting the imaging quality or safety. The insulating layer can prevent current from leaking through the device, protecting the operator from the risk of electric shock, ensuring the safety of medical operations, and helping to reduce electromagnetic interference, which is very important for ensuring the normal operation and precise control of the medical device. The design of the non-magnetic coating and the magnetically compatible sheath allows the device to work normally in a strong magnetic field environment without affecting its performance due to magnetic field interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the magnetically compatible biopsy needle of the utility model;

[0015] Figure 2 It is a left-angle structural schematic diagram of the magnetically compatible biopsy needle of the utility model;

[0016] Figure 3 This is a top-sectional view of a biopsy needle for magnetic compatibility of the utility model;

[0017] Figure 4 The utility model is magnetically compatible with the biopsy needle Figure 3 Enlarged view of point A in the middle.

[0018] In the figure: 1. handle; 2. moving groove; 3. stringing plate; 4. second sealing ring; 5. first sealing ring; 6. needle tube protective cover; 7. needle; 8. measuring scale; 9. magnetic compatible cover; 10. needle rod; 11. string release button; 12. indicator light; 13. anti-slip cover; 14. connecting line; 15. moving plate; 16. moving block; 17. insulating layer; 18. traction spring; 19. fixed block; 20. blocking plate; 21. magnetic element; 22. inner tube; 23. non-magnetic coating; 24. barb; 25. inner core groove. DETAILED DESCRIPTION

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4In the utility model, a magnetically compatible biopsy needle is used, including a handle 1, a movable groove 2 is opened on the upper surface of the handle 1, a first sealing ring 5 is fixedly connected to the right side of the handle 1, a second sealing ring 4 is fixedly connected to the right side of the handle 1, a movable plate 15 is slidably connected to the inner wall of the movable groove 2, an upper chord plate 3 is fixedly connected to the upper surface of the movable plate 15, a needle rod 10 is through-connected to the left side of the handle 1, a magnetically compatible sheath 9 is fixedly connected to the outer surface of the needle rod 10, a needle head 7 is opened on the left side of the needle rod 10, an insulating layer 17 is fixedly connected to the inner wall of the handle 1, a blocking plate 20 is fixedly connected to the top of the inner wall of the handle 1, a magnetic element 21 is fixedly connected to the right side of the blocking plate 20, an inner tube 22 is fixedly connected to the left side of the handle 1, and a non-magnetic coating 23 is fixedly connected to the outer surface of the inner tube 22.

[0023] In this embodiment, a string release button 11 is fixedly connected to the upper surface of the handle 1, and an indicator light 12 is fixedly connected to the upper surface of the handle 1. The indicator light 12 can provide intuitive visual feedback, allowing the operator to understand the working status of the biopsy needle at any time, such as whether it is activated, whether it is in a working state, etc. The bottom surface of the string release button 11 passes through the handle 1 and is connected to the movable plate 15.

[0024] In this embodiment, a needle tube protective sleeve 6 is sleeved on the left side of the second sealing ring 4, and a measuring scale 8 is provided on the outer surface of the needle rod 10. The measuring scale 8 allows the doctor to accurately know the length of the needle during the biopsy process, thereby more accurately controlling the depth of the needle to avoid puncturing the tissue too deeply or too shallowly. The needle tube protective sleeve 6 is made of polytetrafluoroethylene.

[0025] In this embodiment, a moving block 16 is fixedly connected to the bottom surface of the moving plate 15, a fixed block 19 is fixedly connected to the top of the inner wall of the handle 1, and a traction spring 18 is fixedly connected to the side of the moving block 16 and the fixed block 19 close to each other. The traction spring 18 can provide a stable force to maintain the stability of the biopsy needle during the puncture process, which helps to improve the accuracy and success rate of the puncture.

[0026] In this embodiment, the first sealing ring 5 is sleeved with a connecting wire 14, which can transmit electricity and signals to ensure that the biopsy needle can obtain the necessary energy supply and communicate with the control system during operation. The outer surface of the connecting wire 14 is coated with insulating paint.

[0027] In this embodiment, an inner core groove 25 is provided on the upper surface of the inner tube 22 , which helps to guide the needle 7 of the biopsy needle into a specific path or position, thereby improving the accuracy and success rate of puncture. A barb 24 is fixedly connected to the upper surface of the inner core groove 25 .

[0028] In this embodiment, an anti-slip cover 13 is provided on the outer surface of the handle 1. The anti-slip cover 13 can provide a better hand grip, reduce the doctor's slippage when operating the biopsy needle, and thus reduce the risk of operating errors. The material of the anti-slip cover 13 is silicone.

[0029] The working principle of the utility model is as follows: the handle 1 is used by the user to hold and operate the syringe, the cutting tube drives the moving block 16 to move by pulling the upper string plate 3, the upper string plate 3 accumulates force through the traction spring 18, and then the needle rod 10 and the inner tube 22 are injected into the patient's skin or tissue, and precise work can be achieved by observing the measuring scale 8. After reaching the specified position, the string release button 11 is pressed, and the traction spring 18 pushes the moving block 16 to move the cutting tube, and the human tissue can be left in the inner tube 22 through the inner core groove 25 of the inner tube 22, and then the needle rod 10 is taken out, and a magnetic field is generated through the magnetic element 21 to control the movement of the biopsy needle or communicate with a magnetically compatible device. The non-magnetic coating 23 is located on the outer surface of the inner tube 22 to further ensure the compatibility of the device in MRI and prevent magnetic field interference. The magnetic compatible sheath 9 covers the outer surface of the needle rod 10 to ensure that the device does not interfere with the magnetic field in the magnetic resonance imaging (MRI) environment and maintain the imaging quality. The insulating layer 17 is used to ensure the safety of the operator and prevent current leakage through the device, and may also help reduce electromagnetic interference.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Magnetic compatibility using biopsy needle, characterized by: The invention comprises a handle (1), wherein a movable groove (2) is provided on the upper surface of the handle (1), a first sealing ring (5) is fixedly connected to the right side of the handle (1), a second sealing ring (4) is fixedly connected to the right side of the handle (1), a movable plate (15) is slidably connected to the inner wall of the movable groove (2), an upper chord plate (3) is fixedly connected to the upper surface of the movable plate (15), a needle rod (10) is connected through the left side of the handle (1), and the outer surface of the needle rod (10) is The handle (1) is fixedly connected to a magnetically compatible sheath (9), the left side of the needle rod (10) is provided with a needle head (7), the inner wall of the handle (1) is fixedly connected to an insulating layer (17), the top of the inner wall of the handle (1) is fixedly connected to a blocking plate (20), the right side of the blocking plate (20) is fixedly connected to a magnetic element (21), the left side of the handle (1) is fixedly connected to an inner tube (22), and the outer surface of the inner tube (22) is fixedly connected to a non-magnetic coating (23).

2. The magnetically compatible biopsy needle according to claim 1, characterized in that: A string release button (11) is fixedly connected to the upper surface of the handle (1), an indicator light (12) is fixedly connected to the upper surface of the handle (1), and the bottom surface of the string release button (11) passes through the handle (1) and is connected to the movable plate (15).

3. The magnetically compatible biopsy needle according to claim 1, characterized in that: The left side of the second sealing ring (4) is sleeved with a needle tube protective sleeve (6), the outer surface of the needle rod (10) is provided with a measuring scale (8), and the material of the needle tube protective sleeve (6) is polytetrafluoroethylene.

4. The magnetically compatible biopsy needle according to claim 2, characterized in that: The bottom surface of the movable plate (15) is fixedly connected to a movable block (16), the top end of the inner wall of the handle (1) is fixedly connected to a fixed block (19), and a traction spring (18) is fixedly connected to the side surfaces of the movable block (16) and the fixed block (19) that are close to each other.

5. The magnetically compatible biopsy needle according to claim 1, characterized in that: The first sealing ring (5) is sleeved with a connecting wire (14), and the outer surface of the connecting wire (14) is coated with insulating paint.

6. The magnetically compatible biopsy needle according to claim 2, characterized in that: An inner core groove (25) is formed on the upper surface of the inner tube (22), and a barb (24) is fixedly connected to the upper surface of the inner core groove (25).

7. The magnetically compatible biopsy needle according to claim 2, characterized in that: The outer surface of the handle (1) is provided with an anti-slip cover (13), and the material of the anti-slip cover (13) is silicone.

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