Detecting instrument for sentinel lymph node detection
By designing a detector with wireless charging and built-in battery power, the problems of inconvenient operation and low accuracy of sentinel lymph node detection equipment were solved, achieving high-precision sentinel lymph node positioning and improving patient safety.
Patent Information
- Application Number
- CN202421748616.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-07-23
AI Technical Summary
Existing sentinel lymph node detection equipment is inconvenient to operate and has low detection accuracy, which affects the quality of surgery. It may also cause patient discomfort and complications due to insufficient signal or excessive use of radioactive substances.
A detector including a display screen, a probe holder and a base was designed. It is powered by wireless charging and a built-in battery, equipped with a multi-function display and a wireless communication module, and has a flexible probe design and audio feedback to improve detection accuracy and ease of operation.
It achieves high-precision sentinel lymph node positioning, reduces radiation exposure to patients, simplifies the operation process, and improves surgical efficiency and patient comfort.
Smart Images

Figure CN223473761U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diagnostic medical device technology, and in particular to a detector for sentinel lymph node detection, belonging to the field of equipment and devices related to nuclear physics technology. Background Technology
[0002] Radioactive elements play a vital role in various sectors of the national economy, including industry, agriculture, and medicine, particularly in medical testing, where they offer irreplaceable advantages. However, they also pose certain risks. Excessive radiation doses can damage human cells and tissues, causing significant harm to human health. In the field of medical diagnostics, achieving efficient and accurate diagnosis sometimes requires the use of higher isotopes to generate stronger radiation signals, which conflicts with medical treatment objectives. Therefore, to better leverage the significant value of radioactive elements in medical testing, it is necessary to improve the sensitivity of detection and analysis to reduce the amount of radioactive elements used, thereby minimizing their potential harm to patients' health.
[0003] A sentinel lymph node detector is a device used during breast cancer surgery to detect and identify whether cancer cells have spread from the primary tumor site to the sentinel lymph nodes, especially important for breast cancer patients as these are the first point of metastasis for breast cancer cells. The use of radioactive materials or fluorescent dyes helps doctors locate the sentinel lymph nodes. However, current sentinel lymph node detection methods are very inconvenient because the instruments are connected to numerous power and control cables, making operation difficult, increasing the complexity of the detection process, and hindering accurate location of the sentinel lymph nodes, ultimately affecting the quality of the surgery.
[0004] Sometimes, to avoid reduced detection accuracy due to insufficient sentinel lymph node signals, larger doses of radioactive material are often used for testing. Some patients, due to missed detections in earlier stages, have to undergo unnecessary axillary lymph node dissection surgery, often leading to various complications, which contradicts the treatment objective.
[0005] In some cases, insufficient signal strength necessitates the use of larger probes, which reduces the probe's maneuverability. This makes it difficult to operate in narrow or hard-to-reach areas, such as the armpit or other body folds, requiring larger incisions or deeper tissue penetration, increasing patient discomfort and psychological resistance. Furthermore, larger wounds result in slower healing, hindering both the patient's physical and mental recovery. Utility Model Content
[0006] The purpose of this invention is to overcome the problems of inconvenient use, low detection accuracy, and impact on patient diagnosis and surgery of existing sentinel lymph node detection equipment, and to provide a detector for sentinel lymph node detection.
[0007] To achieve the above objectives, the present invention provides the following technical solution:
[0008] A detector for sentinel lymph node detection includes a display screen, a probe slot, and a base, wherein the display screen and the probe slot are connected to the base, and the probe slot is located behind the display screen.
[0009] The probe holder slot is used to accommodate and store the gamma ray detection probe.
[0010] This novel gamma ray detector features a readily detachable detector and probe structure, reducing invasiveness and increasing accuracy, allowing surgeons complete control from a sterile environment. It alleviates infection control burden for caregivers and is always ready for use, eliminating the need for battery or cable replacements. Its efficient design includes voice reporting, eliminating the need to view a display. The tapered probe tip and built-in collimator are cost-effective, enabling the parallel deployment of multiple gamma probes. This contributes to improved surgical precision, allowing for the location and differentiation of radiolabeled tissue, even in the most complex cases.
[0011] Furthermore, a switch button is provided on the base or display screen, a counterweight is provided inside the base, and a power interface is also provided on the base.
[0012] Furthermore, there are at least two probe slots, and at least a portion of the probe slots are located behind the display screen.
[0013] Furthermore, the probe holder slot is equipped with charging contacts or charging pins that can mate with the detection probe. When the probe is placed in the probe holder slot, the probe engages with the charging contacts or charging pins to charge the probe. No special charging operation is required for the probe; simply placing the probe in the probe holder slot is sufficient for charging.
[0014] Furthermore, a wireless charging module is installed inside the probe holder slot for wirelessly charging the gamma-ray detection probe. If two probe holder slots are provided, each equipped with a wireless charging module, at least two probe holder slots capable of wirelessly charging the detector can be constructed, facilitating convenient charging of the probe at any time.
[0015] Furthermore, the gamma-ray detection probe can detect gamma rays emitted by at least one of the nuclides such as TC-99m, In-111, I-131, F18, and I125.
[0016] Furthermore, it also includes an alarm module integrated into the display screen or base. The alarm module is capable of emitting sound and / or light signals to alert the operator. Preferably, the alarm module is a speaker, which is mounted on the base and located below the screen.
[0017] Furthermore, the detector also includes a battery module for powering the detector. With the battery module, the main unit can be powered for more than twelve hours, enabling portable operation.
[0018] Preferably, the battery module is a primary battery or a secondary battery; preferably, the battery is at least one of a lithium battery, a lead-acid battery, a nickel-metal hydride battery, and a nickel-cadmium battery; preferably, the battery is a lithium-ion battery or a lithium polymer battery.
[0019] Furthermore, the power interface is located on the side of the base.
[0020] Furthermore, an indicator light is also provided next to the power connector.
[0021] Furthermore, the detector is equipped with a counterweight. Preferably, the counterweight is located inside the base. The counterweight alters the device layout and weight distribution, adjusts the center of gravity, lowers the overall center of gravity, and enhances the stability of the equipment.
[0022] Furthermore, it also includes a knob for volume adjustment. The knob is configured as a volume control module to adjust the alarm sound level.
[0023] Furthermore, it also includes a knob, which is located at the front end of the base. Preferably, the knob is used to adjust the volume or control the content displayed on the screen.
[0024] Furthermore, a speaker is installed on the side or below the display screen. This speaker serves as an alarm module, and the alarm sound can be of different frequencies depending on the count value of different detectors. For example, the higher the count value, the higher the alarm sound frequency, making it easy to identify the detector count value based on the sound.
[0025] Furthermore, the display screen is a multi-functional display, composed of a wireless charging module, an alarm module, a battery module, a touch screen, a volume adjustment module, a wireless communication module, etc., which can remotely control the detector, analyze and process measurement data, and have display and alarm output functions.
[0026] Furthermore, the detector also includes a wireless communication module, which can connect to a server or wireless network.
[0027] Preferably, the wireless communication module is at least one of Bluetooth, Wi-Fi, LoRa, Zigbee, or other wireless communication modules. More preferably, it is a Bluetooth communication module, and more preferably, the Bluetooth communication module is capable of connecting to multiple Bluetooth devices simultaneously, such as a probe with Bluetooth communication functionality.
[0028] The wireless communication module is configured, including at least two Bluetooth devices, to establish a wireless connection with the detector. The detector can be used individually or multiple detector units can be used simultaneously. Through multi-line combination, multiple detector units can be deployed in parallel to eliminate scheduling conflicts.
[0029] Furthermore, the base is equipped with feet pads on its bottom. These feet pads prevent slipping and improve the stability of the instrument when placed on a table.
[0030] Preferably, there are at least three feet, with the feet closest to the display screen being higher than those of the main display screen, thus adjusting the display screen's tilt angle and making it easier for medical personnel to observe the display screen while operating the instrument. The bottom feet, with their varying heights at the front and rear, allow for adjustment of the overall display screen's tilt angle to meet different viewing angle requirements.
[0031] Furthermore, the display screen is a touch screen. The touch screen allows for simultaneous display of detection data and touch operation, enabling configuration of detection unit parameters and setting of alarm thresholds, among other parameters.
[0032] Furthermore, the detector is also equipped with a handle, which is connected to the display screen or base. The handle facilitates carrying.
[0033] Furthermore, the detector is waterproof.
[0034] Furthermore, a handle slot is provided on the back of the detector's display screen.
[0035] Furthermore, the display screen and base are integrated into a single structure. This integrated detector features IP65 protection and integrates wireless communication and charging functions, enhancing portability and durability. Internally, it integrates signal processing and data processing capabilities, enabling the energy conversion of nuclides. The detector's probe has quick-release and telescopic functions, facilitating flexible use in various scenarios.
[0036] Furthermore, the base and / or display screen frame of the detector are made of ABS material. The entire device is made of ABS, which has high strength, rigidity, and wear resistance. It can withstand certain impacts and vibrations, resist corrosion from chemicals such as acids, alkalis, and oils, and has good insulation and electrical resistance. Moreover, due to the use of ABS plastic material, the entire device is lightweight and easy to carry.
[0037] Compared with the prior art, the present invention has the following beneficial effects:
[0038] 1. This utility model relates to a detector for sentinel lymph node detection. Its multi-functional display system features excellent spatial resolution, dynamic response time, and intuitive software, which helps provide precise directional guidance during operation. Through visualization processing, the detected data is displayed on the screen as images, allowing users to intuitively observe the location of the sentinel lymph nodes.
[0039] 2. The gamma ray detector for precise positioning of sentinel lymph nodes of this utility model adopts a large-size touch screen to ensure convenient operation and optimal visibility in the operating room.
[0040] 3. This utility model of gamma ray detector can adjust the prompt audio rate according to the ray intensity, providing operators with additional auditory assistance and enhancing positioning accuracy. The device can simultaneously receive and process data from multiple detectors, realizing multi-probe collaborative operation.
[0041] 4. This utility model of gamma ray detector can detect five nuclides: TC-99m, In-111, I-131, F18, and I125.
[0042] 5. The preferred embodiment of this utility model gamma ray detector uses a built-in battery, which provides 12 hours of battery life and reliable Bluetooth connectivity, ensuring the system is always ready.
[0043] 6. The preferred embodiment of this utility model gamma ray detector can be easily transported in its lightweight briefcase or with a customized mobile cart; the innovative integrated detector is a first-class sterile, wireless gamma probe, and its innovative detector and heuristic audio feedback technology better detect hotspots. Attached Figure Description
[0044] Figure 1 This is the front view of the gamma ray detector.
[0045] Figure 2 This is a rear-view perspective diagram of a gamma-ray detector.
[0046] Figure 3 This is a schematic diagram of the gamma ray detector viewed from the right rear side.
[0047] Figure 4 This is a schematic diagram of the right-side view of the gamma-ray detector.
[0048] The markings in the diagram are: 1-Display screen, 2-Knob, 3-Speaker, 4-Main board, 5-Base, 7-Power interface, 71-Indicator light, 8-Counterweight, 9-Switch knob, 11-Separate probe, 11a-Probe seat slot, 12-Handle slot. Detailed Implementation
[0049] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments. All technologies implemented based on the content of the present invention fall within the scope of the present invention.
[0050] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.
[0051] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.
[0052] Furthermore, the use of terms such as "first," "second," "third," etc. in terminology is merely for distinguishing identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.
[0053] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.
[0054] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.
[0055] Example 1
[0056] like Figures 1 to 4 As shown, a detector for sentinel lymph node detection includes a display screen 1, a probe slot 11a, and a base 5. The display screen 1 and the probe slot 11a are connected to the base 5. There are two probe slots 11a, both located behind the display screen. Each probe slot 11a contains a charging contact or charging pin, and a gamma ray detection probe 11 can be accommodated within it. When the probe 11 is placed in the probe slot 11a, the probe 11 engages with the charging contact or charging pin to charge the probe.
[0057] A switch button 9 is provided on the base 5 or the display screen 1. A counterweight 8 is provided inside the base 5, and a power interface 7 is also provided on the base 5. Below the display screen 1, a speaker 3 is integrated on the front of the base 5 as an alarm module. The alarm sound emitted by the speaker can be different frequencies of sound according to the count value of different detectors. For example, the higher the value, the higher the frequency of the alarm sound, which makes it easy for the operator to identify the detector count value by sound.
[0058] Furthermore, the detector also includes a battery module, which uses a lithium-ion battery to power the detector. The selected lithium-ion battery capacity is sufficient to power the main unit for more than twelve hours, enabling portable operation of the entire device.
[0059] Furthermore, such as Figure 2 As shown, a power interface 7 is provided on the side of the base 5, and an indicator light 71 is also provided next to the power interface 7. The power interface 7 can use a detachable power cord, which is convenient for storage and preservation during the transportation of the instrument.
[0060] Furthermore, such as Figure 3 As shown, the gamma ray detection probe 11 that comes with the detector can be removed. When in use, it is powered by the battery inside the probe. The probe and the detector can communicate wirelessly with each other.
[0061] Furthermore, a handle groove 12 is provided on the back of the main unit's display screen 1 to facilitate lifting the main unit.
[0062] Example 2
[0063] A detector for sentinel lymph node detection, similar to Embodiment 1, differs only in that a wireless charging module is provided inside the probe holder 11a for wirelessly charging the gamma ray detection probe 11. With each probe holder 11a equipped with a wireless charging module, at least two probe holders 11a capable of wirelessly charging the detector are constructed, facilitating convenient charging of the probe at any time.
[0064] Furthermore, the optional detector has a built-in lithium-ion battery, which can be connected to a wireless charging module to charge the instrument's separate probe 11, making the device more portable.
[0065] Furthermore, such as Figure 2 As shown, a counterweight 8 is installed inside the detector. The counterweight 8 is arranged inside the base to optimize the layout and counterweight of the instrument, adjust the center of gravity, lower the center of gravity of the whole machine, and enhance the stability of the equipment.
[0066] Example 3
[0067] A detector for sentinel lymph node detection, similar to Example 1, differs only in that, Figure 1 As shown, a knob 2 is set on the front of the base 5 as a volume adjustment module to adjust the alarm sound volume.
[0068] The display screen 1 used is a multi-functional display, which is composed of a wireless charging module, an alarm module, a battery module, a touch screen, a volume adjustment module, a wireless communication module, etc. It can remotely control the detector, analyze and process measurement data, and has display and alarm output functions.
[0069] The device's internal motherboard includes a Bluetooth wireless communication module capable of connecting to a server or wireless network. This module can simultaneously connect to the Bluetooth modules of at least two Bluetooth devices, allowing multiple detection units to be deployed in parallel and eliminating scheduling conflicts. Furthermore, the detector employs a wireless communication design, enabling data detected by the probes to be uploaded to the detector in real-time via Bluetooth and displayed on the detector's screen. It can also be programmed to trigger an alarm when the detected signal exceeds a threshold.
[0070] Furthermore, such as Figure 4 As shown, four feet are provided at the bottom of the base 5. The two front feet are close to the display screen, and the two rear feet are away from the display screen. The front feet are higher than the rear feet. This allows for display screen tilt adjustment, making it easier for the user to observe the display screen and maintaining the stability of the detector on the table. It also prevents slipping and ensures the detector does not slide easily.
[0071] Furthermore, the display screen 1 is a touch screen, which can be used to perform touch operations while displaying detection data, and to configure relevant parameters of the detection unit and set parameters such as alarm thresholds through the touch screen.
[0072] Example 4
[0073] Similar to Example 3, this is a detector for sentinel lymph node detection, differing only in that its outer shell is made of ABS material, and the display screen bezel and base are a single ABS structure. The entire device possesses high strength, rigidity, and wear resistance, can withstand certain impacts and vibrations, and is resistant to corrosion from chemicals such as acids, alkalis, and oils. It also exhibits good insulation and electrical resistance. The integrated detector is waterproof, achieving a waterproof rating of IP65 or higher.
[0074] Furthermore, the detector is also equipped with a handle, which is connected to the display screen 1 or the base 5, making it easy to carry. For example... Figure 3 As shown, a handle slot 12 is provided on the host, and the handle slot 12 is located behind the screen.
[0075] The detector for sentinel lymph node detection of this invention can measure and detect the location of lymph nodes using radioactive tracers such as Tc-99m, In-111, I-131, I-125, and F18.
[0076] The aforementioned detector of this utility model uses a split probe 11 for detection. The base 5 and display screen 1 of the main body of the instrument are integrated into a single structure, which can be conveniently placed on a desktop. The probe 11 is more flexible and convenient to operate, simplifying the doctor's operation process, reducing the difficulty of operation, and improving surgical efficiency. It can easily detect in narrow areas of the body. The probe can be disinfected separately from the main unit of the detector, which improves the stability and reliability of the main unit and prevents the performance of the main unit from being reduced due to repeated disinfection.
[0077] Furthermore, because the detector's probe 11 features a split design and interchangeable modular probe components, users can quickly replace or upgrade the probe according to different application scenarios. If the probe malfunctions or is accidentally damaged, a new probe can be re-matched to the detector without replacing the entire unit.
Claims
1. A detector for sentinel lymph node detection, characterized in that, Includes a host unit, which includes a display screen (1), a probe mounting slot (11a), and a base (5). The display screen (1) and the probe seat slot (11a) are connected to the base (5), and the probe seat slot (11a) is located behind the display screen (1). The probe seat slot (11a) is used to accommodate and store the gamma ray detection probe (11). There are at least two probe slots (11a), and at least a portion of the probe slots (11a) are located behind the display screen (1); The detector also includes a wireless communication module and a gamma ray detection probe (11). The wireless communication module can connect to a server or a wireless network; The gamma ray detection probe (11) is wirelessly connected to the host.
2. The detector for sentinel lymph node detection according to claim 1, characterized in that, The probe seat groove (11a) is provided with a charging contact or charging pin that can cooperate with the detection probe (11).
3. The detector for sentinel lymph node detection according to claim 1, characterized in that, The probe seat slot (11a) is equipped with a wireless charging module for wirelessly charging the gamma ray detection probe (11).
4. The detector for sentinel lymph node detection according to claim 1, characterized in that, It also includes an alarm module, which is integrated into the display screen (1) or the base (5), and the alarm module is capable of emitting sound signals and / or light signals.
5. The detector for sentinel lymph node detection according to claim 4, characterized in that, The alarm module is a speaker (3), which is mounted on the base (5) and located below the display screen (1).
6. The detector for sentinel lymph node detection according to claim 1, characterized in that, The wireless communication module is at least one of Bluetooth, Wi-Fi, LoRa, and Zigbee wireless communication modules.
7. A detector for sentinel lymph node detection according to any one of claims 1-6, characterized in that, The detector is also equipped with a handle, which is connected to the display screen (1) or the base (5).