Surgical in-vivo metal foreign body locator

Abstract

The utility model relates to the technical field of metal detection devices for surgeries, in particular to an in-vivo metal foreign matter positioner for surgeries, which comprises a handle, a metal detection disc, a power supply and a controller, the metal detection disc is fixedly arranged at one end of the handle and comprises a plurality of detection units, and the power supply is connected with the controller. The detection unit comprises a detection coil and a multi-color LED lamp, the controller is connected with the detection coil, the multi-color LED lamp is connected with the controller, the controller is used for controlling the multi-color LED lamp to emit light of different colors according to signals of the detection coil, and the power supply is used for supplying power to the controller, the detection unit and the multi-color LED lamp. The small metal foreign matter can be accurately positioned, and tissue damage caused by soft tissue cutting can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metal detection devices for surgery, in particular to a metal foreign body locator for surgery. Background Art

[0002] In accidents such as industrial accidents, motor vehicle accidents, or explosions caused by other reasons, metal fragments can enter the body and form foreign bodies. Metal foreign bodies embedded in bone structures are relatively fixed in position, making them relatively easy to locate and remove during surgery through preoperative CT localization. However, when these metal foreign bodies, especially small fragments, are embedded in soft tissues such as muscle, fat, or internal organs, they are difficult to locate during surgery, often requiring the surgeon to perform multiple intraoperative X-rays for localization, which can sometimes take several hours. Furthermore, the surgeon must have a certain level of experience to complete the surgery.

[0003] Therefore, intraoperative localization of metallic foreign bodies in these surgeries can greatly facilitate their detection. Existing methods, which involve continuously cutting and separating soft tissue and then searching for the foreign body with fingers, are inefficient and significantly increase tissue damage. While intraoperative X-rays or ultrasound can be helpful, they are less effective for metallic foreign bodies embedded in soft tissue and are inconvenient for real-time localization.

[0004] Chinese utility model patent publication number CN207114785U discloses a surgical metal detector that uses a probe and indicator light to detect the location of metal foreign bodies within a patient's body and attracts them with a ring-shaped magnet. This eliminates the need to suture the patient's body wall before transporting them to the operating room, thus avoiding the risks of transport and the potential for infection in the CT scan room. However, smaller metal foreign bodies are difficult to locate with just a single probe. Increasing the probe's detection range reduces its accuracy, and the detector can only determine the metal foreign body's location in a specific area, requiring soft tissue dissection and separation to locate the metal foreign body. Utility Model Content

[0005] The purpose of the present invention is to address the defects of the existing technology and provide a surgical metal foreign body locator that can accurately locate smaller metal foreign bodies, thereby reducing tissue damage caused by soft tissue cutting.

[0006] In order to solve the above technical problems, the utility model provides a metal foreign body locator for surgery, which is characterized by: including a handle, a metal detection plate, a power supply, and a controller, the metal detection plate being fixedly arranged at one end of the handle, the metal detection plate including multiple detection units, the detection units including detection coils and multi-color LED lights, the controller being connected to the detection coils, the multi-color LED lights being connected to the controller, the controller being used to control the multi-color LED lights to emit lights of different colors according to the signals of the detection coils, and the power supply being used to power the controller, the detection units and the multi-color LED lights.

[0007] Furthermore, the plurality of detection units are arranged in a grid shape.

[0008] Furthermore, the multiple detection units include a first detection unit and multiple second detection units, the first detection unit is arranged at the center of the metal detection plate, and the multiple second detection units are arranged in a ring with the first detection unit as the center, and the multiple second detection units are arranged into a multi-circle ring structure, and the radius of each ring structure is different.

[0009] Furthermore, the controller includes a high-frequency oscillator, an oscillation detector, a signal amplifier and a signal conversion output unit connected in sequence.

[0010] Furthermore, the handle is hollow and the power source is arranged inside the handle.

[0011] Furthermore, the controller is arranged in the handle.

[0012] Furthermore, the metal detection disc includes a flexible disc body, and the detection unit is fixedly arranged on the flexible disc body.

[0013] Furthermore, the detection coil is wrapped around the multi-color LED lamp.

[0014] Furthermore, the detection unit includes a packaging shell, and the multi-color LED lamp is arranged in the packaging shell.

[0015] Furthermore, the angle between the handle and the metal detection plate is an obtuse angle.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model sets up multiple detection units, each detection unit is equipped with a multi-color LED light. The controller controls the multi-color LED light to emit different colors according to the strength of the detection signal of the detection coil, so that smaller metal foreign bodies can be accurately located, which is beneficial to reduce tissue damage caused by soft tissue cutting.

[0018] 2. The multiple detection units of the present invention can be arranged in a mesh or multi-layer ring shape, which is conducive to improving the speed of accurately locating metal foreign objects.

[0019] 3. The utility model can set the handle to be hollow, and the power supply and controller can be arranged in the handle.

[0020] 4. The metal detection tray of the present invention includes a flexible tray body, which can be closely attached to the surface of soft tissue during surgery and can be applied to tissue surfaces of different shapes to search for metal foreign bodies.

[0021] 5. The detection coil of the present invention is arranged around the multi-color LED lamp, which can reduce the area occupied by each detection unit, so that more detection units can be arranged on the metal detection plate, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of Example 1;

[0023] Figure 2 This is a connection diagram of the detection unit of Example 1;

[0024] Figure 3 for Figure 1 Middle AA cross-section;

[0025] Figure 4 Schematic diagram of the structure of the detection unit of Example 1;

[0026] Figure 5 This is a structural diagram of Example 2.

[0027] Reference numerals: handle 1 ; detection unit 2 ; multi-color LED lamp 3 ; detection coil 4 ; flexible disk 5 ; packaging shell 6 ; power supply 7 ; controller 8 . DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0029] Example 1

[0030] like Figure 1 As shown, this embodiment provides a body metal foreign body locator for surgery, including a handle 1, a metal detection plate, a power supply 7, and a controller 8.

[0031] like Figure 3As shown, the handle 1 is a long rod-shaped structure with a hollow interior. The power supply 7 and the controller 8 are both arranged inside the handle 1. In this embodiment, the power supply 7 is a battery. An opening is provided on the handle 1. A power cover is detachably provided on the opening. The battery can be replaced by opening the power cover. The angle between the handle 1 and the metal detection disk is an obtuse angle, which facilitates pressing the metal detection disk onto the tissue.

[0032] The metal detection plate includes a flexible plate body 5, which is fixedly arranged at one end of the handle 1. The flexible plate body 5 is provided with a plurality of detection holes, and a plurality of detection units 2 are arranged in the detection holes. Figure 4 As shown, the detection unit 2 includes a packaging shell 6, a detection coil 4, and a multi-color LED lamp 3. The packaging shell 6 is a transparent shell. The packaging shell 6 is fixed in the detection hole by glue. The multi-color LED lamp 3 is fixed in the packaging shell 6. The detection coil 4 is wrapped around the multi-color LED lamp 3. Figure 2 As shown, the detection coil 4, controller 8, and multi-color LED lamp 3 are connected in sequence, and the power supply 7 is used to power the detection coil 4, controller 8, and multi-color LED lamp 3. In this embodiment, the multi-color LED lamp 3 can emit green, yellow, and red lights respectively according to the current from weak to strong. The controller 8 includes a high-frequency oscillator, an oscillation detector, a signal amplifier, and a signal conversion and output unit connected in sequence.

[0033] like Figure 1 As shown, multiple detection units 2 are arranged in a grid shape.

[0034] The method of using the intracorporeal metal foreign body locator for surgery is as follows: hold the handle 1 and stick the flexible disc 5 to the tissue surface. When no metal is detected, the magnetic field generated by the transmitting coil of the detection coil 4 will not change, and the multi-color LED lamp 3 will not emit light. When metal is detected, the magnetic field generated by the transmitting coil will be interfered by the metal foreign body, and the induced voltage of the receiving coil of the detection coil 4 cannot offset the magnetic field generated by the transmitting coil. The unoffset induced voltage is amplified and processed by the controller 8, causing the multi-color LED lamp 3 to emit light. Since the distances between each detection unit 2 and the metal foreign body are different, the signal strength sensed by each detection unit 2 is different, so that the multi-color LED lamp 3 emits lights of different colors to indicate the difference. The detection unit 2 closest to the metal foreign body displays red, the surrounding detection units 2 display yellow, and the detection units 2 farther away display green. Therefore, the position corresponding to the detection unit 2 displaying red is the precise position of the metal foreign body.

[0035] Since the surgical metal foreign body locator in this embodiment is provided with a plurality of detection units 2, it can quickly locate the approximate position of the metal foreign body. Then, by slowly moving the surgical metal foreign body locator, the metal foreign body can be accurately located according to the color change of the multi-color LED light 3. The positioning speed is fast and the tissue damage caused by soft tissue cutting is reduced.

[0036] Example 2

[0037] Compared with embodiment 1, embodiment 2 is different in that the arrangement positions of the multiple detection units 2 are as follows: Figure 5 As shown, the multiple detection units 2 are arranged in a multi-layer ring shape, that is, the multiple detection units 2 include a first detection unit and multiple second detection units, the first detection unit is arranged at the center of the flexible disk 5, and the multiple second detection units are arranged in a ring shape with the first detection unit as the center. The multiple second detection units are arranged into a multi-circle ring structure, and the radius of each ring structure is different.

[0038] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A surgical metal foreign body locator, characterized by: The invention comprises a handle (1), a metal detection disk, a power supply (7), and a controller (8); the metal detection disk is fixedly arranged at one end of the handle (1); the metal detection disk comprises a plurality of detection units (2); the detection units (2) comprise detection coils (4) and multi-color LED lights (3); the controller (8) is connected to the detection coils (4); the multi-color LED lights (3) are connected to the controller (8); the controller (8) is used to control the multi-color LED lights (3) to emit lights of different colors according to signals from the detection coils (4); and the power supply (7) is used to supply power to the controller (8), the detection units (2), and the multi-color LED lights (3).

2. The surgical metal foreign body locator according to claim 1, characterized in that: The plurality of detection units (2) are arranged in a mesh shape.

3. The surgical metal foreign body locator according to claim 1, characterized in that: The plurality of detection units (2) include a first detection unit (2) and a plurality of second detection units (2), wherein the first detection unit (2) is arranged at the center of the metal detection disk, and the plurality of second detection units (2) are arranged in a ring with the first detection unit (2) as the center, and the plurality of second detection units (2) are arranged in a multi-ring ring structure, and the radius of each ring structure is different.

4. The surgical metal foreign body locator according to any one of claims 1 to 3, characterized in that: The controller (8) comprises a high-frequency oscillator, an oscillation detector, a signal amplifier and a signal conversion output unit which are connected in sequence.

5. The surgical metal foreign body locator according to any one of claims 1 to 3, characterized in that: The handle (1) is hollow, and the power source (7) is arranged inside the handle (1).

6. The surgical metal foreign body locator according to claim 5, characterized in that: The controller (8) is arranged in the handle (1).

7. The surgical metal foreign body locator according to any one of claims 1 to 3, characterized in that: The metal detection disc comprises a flexible disc body (5), and the detection unit (2) is fixedly arranged on the flexible disc body (5).

8. The surgical metal foreign body locator according to any one of claims 1 to 3, characterized in that: The detection coil (4) is wrapped around the multi-color LED lamp (3).

9. The surgical metal foreign body locator according to any one of claims 1 to 3, characterized in that: The detection unit (2) comprises a packaging shell (6), and the multi-color LED lamp (3) is arranged in the packaging shell (6).

10. The surgical metal foreign body locator according to any one of claims 1 to 3, characterized in that: The included angle between the handle (1) and the metal detection plate is an obtuse angle.

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