Ultrasonic thermal therapy flexible temperature acquisition device

Abstract

The invention belongs to the technical field of temperature acquisition, and particularly relates to an ultrasonic thermal therapy flexible temperature acquisition device which comprises a flexible sensor installer and a sensor module, the flexible sensor installer comprises a hollow outer shell and a guide steel needle, the lower side of the outer wall of the outer shell protrudes outwards to form a skirt edge, and the guide steel needle is arranged in the outer shell. The guide steel needle is movably inserted into the lower side of the outer shell, and a moving mechanism used for driving the guide steel needle to move is arranged in the outer shell. The flexible sensor does not cause fear visually. Wired transmission is adopted in the prior art, the face treatment process can be restrained by lines, and movement is limited, the Bluetooth low-power-consumption wireless technology is adopted for data transmission (a bus transmission mode can also be adopted for multi-sensor transmission), and the movement of a patient is not restrained. And the sensor can be fixed by application, which is safe and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature collection, and in particular to a flexible temperature collection device for ultrasonic thermal therapy. Background Art

[0002] Ultrasonic hyperthermia technology is a new treatment technology for malignant tumors developed by using ultrasound technology to develop hyperthermia equipment after surgery, chemotherapy, radiotherapy and other treatment methods. The theoretical basis, basic experiments and a large number of clinical studies of modern tumor hyperthermia have shown that: When the temperature is above 40 degrees Celsius, cells stop growing, and at 45 degrees Celsius, proteins begin to denature and break down.

[0003] The blood vessels inside the tumor are inherently poor, and heat is easily accumulated. Under the action of the heat source, the cells inside the tumor are more susceptible to treatment than the surrounding normal tissues.

[0004] Cancer cells are hypoxic cells with strong ability to resist radiation, but are sensitive to thermal damage. Combining them with radiotherapy can improve the efficacy.

[0005] As a key component of ultrasonic hyperthermia systems, the temperature control system's temperature sensor is crucial for ensuring temperature control at the treatment site. Existing technology uses a metal syringe needle embedded with a temperature sensor, which penetrates the tumor at the patient's treatment site to detect the tumor's real-time temperature. If temperature measurement is required at multiple locations, multiple metal syringe temperature sensors must be installed. During treatment, patients not only have to endure the pain of installing the rigid sensor, but also face a fear of the sensor. This creates a discomforting experience for patients during treatment. Summary of the Invention

[0006] The object of the present invention is to provide a flexible temperature collection device for ultrasonic thermal therapy to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: a flexible temperature collection device for ultrasonic thermal therapy, comprising: Flexible sensor mounter, sensor module; The flexible sensor installer includes an outer shell and a guide steel needle. The outer shell is hollow, and the lower side of the outer wall of the outer shell protrudes outward to form a skirt. The guide steel needle is movably plugged into the lower side of the outer shell. A moving mechanism for driving the guide steel needle to move is provided inside the outer shell. The sensor module includes an external interface cover for an indwelling needle, and the bottom of the external interface cover for the indwelling needle is connected to a hollow indwelling soft needle. The indwelling soft needle corresponds to the position of the guide steel needle. The inner wall of the indwelling soft needle is provided with an interlayer, and an installation compartment is formed between the interlayer and the inner wall of the indwelling soft needle. Two sensor heads are provided in the installation compartment, and the upper ends of the sensor heads are connected to sensor leads, and the sensor leads are externally connected to a wireless communication module.

[0008] Preferably, the movable mechanism includes a mounting plate movably connected to the inside of the outer shell, the upper end of the guide steel needle is fixedly connected to the lower surface of the mounting plate, and a movable connecting rod is provided on the upper surface of the mounting plate, and the upper end of the movable connecting rod movably passes through the upper surface of the outer shell and extends upward.

[0009] Preferably, a pressing handle is provided at the top end of the movable connecting rod.

[0010] Preferably, a return spring is provided between the lower surface of the pressing handle and the upper surface of the outer shell, and the return spring is sleeved on the outer wall of the movable connecting rod.

[0011] Preferably, the outer wall of the outer cover of the indwelling needle is provided with a lead interface, and the sensor lead extends from the lead interface.

[0012] Preferably, two positioning blocks are symmetrically provided on the lower surface of the outer shell, and the distance between the two positioning blocks matches the width of the outer wall of the outer interface cover of the indwelling needle.

[0013] Preferably, the positioning block is made of rubber.

[0014] Preferably, the lower sides of the two positioning blocks facing each other are both provided with an inclined shape.

[0015] Compared with the prior art, the present invention has the following beneficial effects: After installation, the ultrasonic transducer is tightly aligned with the lesion, significantly improving its energy utilization. The sensor is installed using an inserter needle, eliminating the patient's foreign body sensation and enhancing the treatment experience. The sensor can be left in place for extended periods without daily replacement, enhancing the user experience and reducing the financial burden on patients and health insurance providers. The sensor's internal circuitry utilizes a dual-sensor solution, which continuously calibrates the sensor during use, significantly improving system safety and data accuracy.

[0016] Existing treatments use multiple syringe needles inserted near the tumor, which can be visually frightening for patients. Flexible sensors, however, are visually non-threatening. Existing treatments rely on wired transmission, which can restrict movement during facial treatment. This new technology uses Bluetooth low-power wireless technology for data transmission (multi-sensor systems can also use bus transmission), eliminating the need for restricting patient movement. Sensors can be securely fixed using patch installation, which is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 Schematic diagram of the internal structure of the outer shell of the present invention; Figure 3 This is a schematic diagram of the internal structure of the indwelling needle external interface cover and the indwelling soft needle of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of part A; Figure 5 This is a structural diagram of the indwelling needle external interface cover, indwelling soft needle and wireless communication module of the present invention.

[0018] In the figure: 1. Outer shell; 2. Moving connecting rod; 3. Pressing handle; 4. Return spring; 5. Mounting plate; 6. Guide steel needle; 7. Positioning block; 8. Indwelling needle outer interface cover; 9. Indwelling soft needle; 10. Sensor lead; 11. Sensor head; 12. Interlayer; 13. Lead interface. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0021] Example 1: See also Figure 1-5,The present invention provides a technical solution: an ultrasonic hyperthermia flexible temperature collection device, comprising: a flexible sensor installer, a sensor module; Among them, the flexible sensor installer includes an outer shell 1 and a guide steel needle 6. The outer shell 1 is hollow, and the lower side of the outer wall of the outer shell 1 protrudes outward to form a skirt. The guide steel needle 6 is movably inserted into the lower side of the outer shell 1. The interior of the outer shell 1 is provided with a moving mechanism for driving the guide steel needle 6 to move. The sensor module includes an indwelling needle external interface cover 8. The bottom of the indwelling needle external interface cover 8 is connected with a hollow indwelling soft needle 9. The indwelling soft needle 9 corresponds to the position of the guide steel needle 6. The inner wall of the indwelling soft needle 9 is provided with an interlayer 12. An installation compartment is formed between the interlayer 12 and the inner wall of the indwelling soft needle 9. Two sensor heads 11 are provided in the installation compartment. The upper end of the sensor head 11 is connected to a sensor lead 10, and the sensor lead 10 is externally connected to a wireless communication module.

[0022] Analysis of the above content: Due to the existing solutions' poor temperature accuracy and poor user experience, a new temperature sensor needle based on a copper-constantan thermocouple has been designed. The sensor head 11 is a copper-constantan thermocouple, which occupies a very small space. After being inserted through an injection needle, the temperature sensor is a flexible one that remains in the body. Data is transmitted to the host via Bluetooth technology, eliminating the impact of line transmission on patient treatment.

[0023] Copper-Constantan thermocouple (T-type thermocouple) sensor advantages and features: A low-cost metal thermocouple optimized for measuring low temperatures. Its positive electrode (TP) is pure copper, and its negative electrode (TN) is a copper-nickel alloy called Constantan. It is compatible with Constantan EN, a nickel-chromium-Constantan alloy, but not with Constantan JN, an iron-Constantan alloy, even though they are both called Constantan. The measuring temperature range of the copper-copper-nickel thermocouple is -200 to 350°C.

[0024] It has the advantages of good linearity, large thermoelectric potential, high sensitivity, temperature linearity and good replicability, fast heat transfer, good stability and uniformity, low price, etc. It is especially stable when used in the temperature range of -200~0℃. It is easy to make. You can use copper wire and constantan wire of different specifications to make sensors according to needs. This design uses enameled wire and constantan wire with diameters of 0.08mm respectively. The welding points after spot welding can be made into very small diameters and can be directly installed into the inside of the 8# needle. It is very suitable for temperature measurement points with small wounds.

[0025] The material has strong plasticity and can be bent into any shape, and can be easily installed in an implantable flexible needle tube similar to an indwelling needle.

[0026] The internal structure uses a single temperature sensor structure. When the sensor fails or deviates, the system will be at risk of temperature control errors.

[0027] According to the original plan, patients had to replace the temperature sensor every day during treatment, which increased the frequency of medical operations and increased the financial burden on medical insurance or patients.

[0028] The function of the sensor installer is to install and introduce the flexible temperature sensor into the close-range part of the tumor lesion, using a coaxial hollow needle structure.

[0029] The sensor module is the core part for temperature collection, and consists of a flexible circuit patch, a flexible sensor, an electrical conversion circuit, and a Bluetooth transmission circuit.

[0030] The system uses a dual temperature sensor structure internally. When any temperature sensor fails or deviates, the system will be able to detect it immediately and prompt to protect the patient and provide treatment, greatly improving the safety of the temperature control system.

[0031] The material can be left in place for a long time. The sensor can be left in the human body for a long time, so it can be installed once and used throughout the entire course of treatment, which greatly improves the economic benefits and patient experience.

[0032] Two sensor heads 11 are installed in the installation chamber. The two sensor heads 11 are close to each other, so the temperatures collected by the two sensor heads 11 are basically the same. It is preset that when the temperature difference between the two sensor heads 11 reaches a certain value, one of the sensor heads 11 is considered to be damaged. For example, when the temperature difference between the two sensor heads 11 is 2°C, one of the sensor heads 11 is considered to be faulty. Therefore, any one of the two sensor heads 11 can be used as a reference object.

[0033] The collected temperature is transmitted using a wireless communication module, which does not require complicated data cables, making the overall structure neater. The wireless communication module can use a Bluetooth module.

[0034] Example 2: See also Figure 1-5 The present invention provides a technical solution: the movable mechanism includes a mounting plate 5 movably connected to the interior of the outer shell 1. The upper end of the guide steel needle 6 is fixedly connected to the lower surface of the mounting plate 5. The upper surface of the mounting plate 5 is provided with a movable connecting rod 2. The upper end of the movable connecting rod 2 movably penetrates the upper surface of the outer shell 1 and extends upward. The top of the movable connecting rod 2 is provided with a pressing handle 3. A return spring 4 is provided between the lower surface of the pressing handle 3 and the upper surface of the outer shell 1. The return spring 4 is sleeved on the outer wall of the movable connecting rod 2.

[0035] Analysis of the above content: When in use, under the elastic force of the return spring 4, the pressing handle 3 and the moving connecting rod 2 are pushed upward, and the mounting plate 5 and the guide steel needle 6 are driven to move upward.

[0036] During implantation, the pressing handle 3 and the moving connecting rod 2 are pressed down to insert the guide steel needle 6 into the indwelling soft needle 9, supporting the indwelling soft needle 9 until the indwelling soft needle 9 and the guide steel needle 6 are inserted into the patient's body. Afterwards, the pressing handle 3 and the moving connecting rod 2 are released. Under the elastic force of the reset spring 4, the pressing handle 3 and the moving connecting rod 2 are pushed up, and the mounting plate 5 and the guide steel needle 6 are driven to move upward. The outer shell 1 blocks the guide steel needle 6, and the guide steel needle 6 is separated from the indwelling needle outer interface cover 8 and the indwelling soft needle 9.

[0037] Example 3: See also Figure 1-5 The present invention provides a technical solution: the outer wall of the indwelling needle outer interface cover 8 is provided with a lead interface 13, and the sensor lead 10 extends from the lead interface 13.

[0038] Analysis of the above content: The setting of the lead interface 13 is used to guide the sensor lead 10 out.

[0039] Example 4: See also Figure 1-5 The present invention provides a technical solution: two positioning blocks 7 are symmetrically disposed on the lower surface of the outer shell 1. The spacing between the two positioning blocks 7 matches the width of the outer wall of the indwelling needle outer interface cover 8. The positioning blocks 7 are made of rubber. The lower sides of the two positioning blocks 7 facing each other are both provided with an inclined shape.

[0040] Analysis of the above content: The two positioning blocks 7 are used to clamp the outer cover 8 of the indwelling needle, and can simply fix the outer cover 8 of the indwelling needle during implantation.

[0041] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure signs in the claims should not be regarded as limiting the claims involved.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A flexible temperature collection device for ultrasonic thermal therapy, characterized in that: include: Flexible sensor mounter, sensor module; The flexible sensor installer comprises an outer shell (1) and a guide steel needle (6); the outer shell (1) is hollow, and the lower side of the outer wall of the outer shell (1) protrudes outward to form a skirt; the guide steel needle (6) is movably plugged into the lower side of the outer shell (1); and a moving mechanism for driving the guide steel needle (6) to move is provided inside the outer shell (1); The sensor module comprises an indwelling needle external interface cover (8), the bottom of which is connected to a hollow indwelling soft needle (9), the indwelling soft needle (9) corresponds to the position of the guide steel needle (6), the inner wall of the indwelling soft needle (9) is provided with an interlayer (12), an installation chamber is formed between the interlayer (12) and the inner wall of the indwelling soft needle (9), two sensor heads (11) are arranged in the installation chamber, the upper ends of the sensor heads (11) are connected to sensor leads (10), and the sensor leads (10) are externally connected to a wireless communication module.

2. The ultrasonic thermal therapy flexible temperature collection device according to claim 1, characterized in that: The moving mechanism comprises a mounting plate (5) movably connected to the interior of the outer shell (1); the upper end of the guide steel needle (6) is fixedly connected to the lower surface of the mounting plate (5); the upper surface of the mounting plate (5) is provided with a moving connecting rod (2); the upper end of the moving connecting rod (2) movably penetrates the upper surface of the outer shell (1) and extends upward.

3. The ultrasonic thermal therapy flexible temperature collection device according to claim 2, characterized in that: A pressing handle (3) is provided at the top end of the movable connecting rod (2).

4. The ultrasonic thermal therapy flexible temperature collection device according to claim 3, characterized in that: A return spring (4) is provided between the lower surface of the pressing handle (3) and the upper surface of the outer shell (1), and the return spring (4) is sleeved on the outer wall of the moving connecting rod (2).

5. The ultrasonic thermal therapy flexible temperature collection device according to claim 1, characterized in that: The outer wall of the indwelling needle outer interface cover (8) is provided with a lead interface (13), and the sensor lead (10) extends from the lead interface (13).

6. The ultrasonic thermal therapy flexible temperature collection device according to claim 1, characterized in that: Two positioning blocks (7) are symmetrically arranged on the lower surface of the outer shell (1), and the distance between the two positioning blocks (7) matches the width of the outer wall of the indwelling needle outer interface cover (8).

7. The ultrasonic thermal therapy flexible temperature collection device according to claim 6, characterized in that: The positioning block (7) is made of rubber material.

8. The ultrasonic thermal therapy flexible temperature collection device according to claim 6, characterized in that: The lower sides of the two positioning blocks (7) facing each other on the side walls are both provided with an inclined shape.

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