Microwave ablation needle capable of measuring temperature

Abstract

The microwave ablation needle capable of measuring the temperature is characterized in that the microwave ablation needle comprises a device shell and an ablation needle body which is arranged in the device shell and extends out of the device shell, one end of the ablation needle body is connected with an ablation needle head, and a fixing sleeve for fixing the ablation needle head is formed on the end face of the ablation needle body. A connecting hole is formed in the center of the fixing sleeve, one end of the ablation needle head extends into the connecting hole and extends towards the ablation needle body, a plurality of sunken grooves are formed in the fixing sleeve, fixing blocks are arranged in the sunken grooves, an acting spring is arranged between one end of each fixing block and the wall face of the corresponding sunken groove, and the acting spring is connected with the ablation needle head. The two ends of the acting spring are connected with pull rings formed on the wall faces of the fixing block and the concave groove through the tension spring, and the diameter of the connecting hole is larger than the diameter of the outer edge of the fixing block. Ablation needles of different sizes can be flexibly installed, and installation is convenient and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave ablation treatment equipment, in particular to a microwave ablation needle capable of measuring temperature. Background Art

[0002] In recent years, microwave ablation has become one of the important treatment methods for soft tissues such as liver cancer, kidney cancer, and thyroid cancer. Microwave ablation uses antennas to radiate microwaves, which cause ions and polar water molecules in tissues to rotate and vibrate, and rub against each other to produce a thermal effect, so that the treatment area quickly reaches a very high temperature, the tissue coagulates, dehydrates and necrotizes, thereby achieving the purpose of treatment.

[0003] The needle head of the existing microwave ablation needle is connected to the needle body. A disposable microwave ablation needle with multiple sizes of interfaces is disclosed in the Chinese patent with the announcement number CN218391262U, and specifically discloses an ablation needle head and an ablation needle body, the right end of the ablation needle head is provided with an ablation needle rod, the right end of the ablation needle rod is provided with a conversion assembly for fixing and installing different types of microwave ablation needles, and the conversion assembly includes a connecting tube, a threaded column, a first connecting sleeve and a second connecting sleeve, the internal thread of the connecting tube is connected with a threaded column, and the right end of the threaded column is installed with a first connecting sleeve, the right side of the first connecting sleeve is provided with a second connecting sleeve, and the ablation needle body is located on the right side of the second connecting sleeve. However, although this method can flexibly install the ablation needle, it is very troublesome to install. Summary of the invention

[0004] The utility model aims to provide a microwave ablation needle capable of measuring temperature, so as to solve the above technical solution.

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

[0006] A temperature-measurable microwave ablation needle, characterized in that it includes a device shell and an ablation needle body arranged in the device shell and extending outside the device shell, one end of the ablation needle body is connected to the ablation needle head, and the end surface of the ablation needle body is formed with a fixing sleeve for fixing the ablation needle head, and the center of the fixing sleeve is formed with a connecting hole, one end of the ablation needle head extends into the connecting hole and extends toward the ablation needle body, wherein a plurality of recessed grooves are formed on the fixing sleeve, and a fixing block is arranged in the recessed groove, and an action spring is arranged between one end of the fixing block and the wall surface of the recessed groove, and the two ends of the action spring are respectively formed with pull rings on the fixing block and the wall surface of the recessed groove, which are connected through the tension spring, and the diameter of the connecting hole is larger than the outer edge diameter of the fixing block.

[0007] The utility model is further provided that a plurality of temperature sensors are arranged on the needle head.

[0008] The utility model is further configured that the recessed grooves are evenly distributed in the circumferential direction of the fixing sleeve.

[0009] The utility model is further configured that the number of the recessed grooves and the number of the fixing blocks are four.

[0010] The utility model is further provided that a cooling cavity is formed in the device shell, and the cooling cavity is connected with a liquid inlet pipe and a liquid outlet pipe, and the liquid inlet pipe and the liquid outlet pipe are arranged along the length direction of the device shell.

[0011] The utility model is further arranged that the liquid inlet pipe and the liquid outlet pipe are respectively located in the liquid inlet cavity and the liquid outlet cavity, and pipe sleeves are arranged in the liquid inlet cavity and the liquid outlet cavity for fixing the liquid inlet pipe and the liquid outlet pipe.

[0012] Beneficial effects of the present invention: a fixing sleeve is provided in the present invention to realize the replacement and installation of ablation needles of different sizes. When installing the ablation needle, one end of the ablation needle is inserted into the connecting hole and acts on the fixing block, so that the fixing block is pushed to move during installation, and the needle is fixed by the action of the tension spring, especially when the diameter of the connecting hole is larger than the outer edge diameter of the fixing block, which ensures that ablation needles of different sizes can be flexibly installed, and the installation is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0014] Figure 1 It is a side view of an embodiment of the utility model.

[0015] Figure 2 It is a side view of an embodiment of the utility model.

[0016] Figure 3 It is a schematic structural diagram of a pipe sleeve according to an embodiment of the utility model.

[0017] 10. Device housing; 20. Ablation needle body; 30. Ablation needle; 40. Fixing sleeve; 50. Connecting hole; 60. Concave groove; 70. Fixing block; 80. Spring; 90. Pull ring; 100. Temperature sensor; 110. Cooling chamber; 120. Liquid inlet pipe; 130. Liquid outlet pipe; 140. Liquid inlet chamber; 150. Liquid outlet chamber; 160. Pipe sleeve; DETAILED DESCRIPTION

[0018] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0019] like Figure 1-3 As shown, the utility model is a temperature-measurable microwave ablation needle, characterized in that it includes a device shell 10 and an ablation needle body 20 arranged in the device shell 10 and extending to the outside of the device shell 10, one end of the ablation needle body 20 is connected to the ablation needle head 30, and the end face of the ablation needle body 20 is formed with a fixing sleeve 40 for fixing the ablation needle head 30, and the center of the fixing sleeve 40 is formed with a connecting hole 50, one end of the ablation needle head 30 extends into the connecting hole 50 and extends toward the ablation needle body 20, wherein a plurality of recessed grooves 60 are formed on the fixing sleeve 40, a fixing block 70 is arranged in the recessed groove 60, an action spring 80 is arranged between one end of the fixing block 70 and the wall surface of the recessed groove 60, and the two ends of the action spring 80 are respectively formed with pull rings 90 on the wall surface of the fixing block 70 and the recessed groove 60, which are connected through the tension spring, and the diameter of the connecting hole 50 is larger than the outer edge diameter of the fixing block 70.

[0020] The utility model is further provided that a plurality of temperature sensors 100 are provided on the needle.

[0021] The utility model is further configured that the recessed grooves 60 are evenly distributed in the circumferential direction of the fixing sleeve 40 .

[0022] The utility model is further configured that the number of the recessed grooves 60 and the number of the fixing blocks 70 are both four.

[0023] The utility model is further provided that a cooling chamber 110 is formed in the device housing 10 , and the cooling chamber 110 is connected with a liquid inlet pipe 120 and a liquid outlet pipe 130 , and the liquid inlet pipe 120 and the liquid outlet pipe 130 are arranged along the length direction of the device housing 10 .

[0024] The utility model is further configured that the liquid inlet pipe 120 and the liquid outlet pipe 130 are respectively located in the liquid inlet cavity 140 and the liquid outlet cavity 150 , and a pipe sleeve 160 is provided in the liquid inlet cavity 140 and the liquid outlet cavity 150 for fixing the liquid inlet pipe 120 and the liquid outlet pipe 130 .

[0025] In the present invention, a fixing sleeve 40 is provided for realizing replacement and installation of ablation needles 30 of different sizes. When installing the ablation needle 30, one end of the ablation needle 30 is inserted into the connecting hole 50 and acts on the fixing block 70, so that the fixing block 70 is pushed to move during installation, and the needle is fixed by the action of the tension spring, especially when the diameter of the connecting hole 50 is larger than the outer edge diameter of the fixing block 70, which ensures that ablation needles 30 of different sizes can be flexibly installed, and the installation is convenient and efficient.

[0026] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0027] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0028] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A microwave ablation needle capable of measuring temperature, characterized in that: It includes a device shell and an ablation needle body arranged in the device shell and extending outside the device shell, one end of the ablation needle body is connected to the ablation needle head, and the end surface of the ablation needle body is formed with a fixing sleeve for fixing the ablation needle head, and the center of the fixing sleeve is formed with a connecting hole, one end of the ablation needle head extends into the connecting hole and extends toward the ablation needle body, wherein a plurality of recessed grooves are formed on the fixing sleeve, and a fixing block is arranged in the recessed groove, and an action spring is arranged between one end of the fixing block and the wall surface of the recessed groove, and the two ends of the action spring are respectively connected to the pull rings formed on the fixing block and the wall surface of the recessed groove through the tension spring, and the diameter of the connecting hole is larger than the outer edge diameter of the fixing block.

2. A temperature-measurable microwave ablation needle as claimed in claim 1, characterized in that: A plurality of temperature sensors are arranged on the needle.

3. The temperature-measurable microwave ablation needle according to claim 1, characterized in that: The concave grooves are evenly distributed in the circumferential direction of the fixing sleeve.

4. A temperature-measurable microwave ablation needle as claimed in claim 3, characterized in that: The number of the recessed grooves and the number of the fixing blocks are four.

5. The temperature-measurable microwave ablation needle according to claim 1, characterized in that: A cooling cavity is formed in the device shell, and a liquid inlet pipe and a liquid outlet pipe are connected to the cooling cavity. The liquid inlet pipe and the liquid outlet pipe are arranged along the length direction of the device shell.

6. A temperature-measurable microwave ablation needle as claimed in claim 5, characterized in that: The liquid inlet pipe and the liquid outlet pipe are respectively located in the liquid inlet cavity and the liquid outlet cavity. Pipe sleeves are arranged in the liquid inlet cavity and the liquid outlet cavity for fixing the liquid inlet pipe and the liquid outlet pipe.

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