Ultrasonic development adjustable needle knife

Abstract

The utility model discloses an adjustable needle knife for ultrasonic development. The adjustable needle knife comprises an outer needle knife and a needle core, the outer needle knife comprises a handle and a needle body, and the needle body comprises an outer needle tube and an inner needle tube which is coaxial with the outer needle tube and can rotate relative to the outer needle tube in the circumferential direction. The ultrasonic developing groove comprises a first groove formed in the tail end of the outer needle tube and a second groove formed in the tail end of the inner needle tube; a plurality of windows are formed in the tail end of the outer needle tube at intervals in the circumferential direction, so that the second groove and the first groove are exposed out of the tail end of the outer needle tube together; an adjusting knob is arranged at the bottom of the handle, and the adjusting knob is connected with the inner needle tube and used for adjusting the circumferential position of the inner needle tube, so that different positions of the second groove are located in the window. According to the adjustable needle knife for ultrasonic development, the ultrasonic development effect can be adjusted under the condition that an ultrasonic probe is not adjusted, the positioning effect of the tail end of the needle knife can be improved, and meanwhile needle knife operation can be facilitated.

Description

Technical Field

[0001] This application relates to the field of needle knife technology, specifically to a needle knife with adjustable ultrasound imaging. Background Technology

[0002] In needle knife therapy, to more accurately position the needle tip, an ultrasonic positioning method is introduced. Through real-time guidance by ultrasonic imaging, the needle can precisely reach the lesion, improving the accuracy and safety of treatment. To enhance the ultrasonic imaging effect at the needle tip, existing technologies typically incorporate grooves at the tip to improve ultrasonic reflection efficiency, thereby enhancing the ultrasonic imaging effect. For example, Chinese patent application number 202322825110.9, entitled "A Needle Knife with Ultrasonic Guidance," discloses multiple sets of ultrasonic imaging-enhancing thread grooves arranged side-by-side on the outer circumferential wall of the needle body.

[0003] However, this technology also faces some challenges in practice. Since ultrasound visualization and needle knife manipulation need to be performed simultaneously, medical personnel typically need to operate the needle knife with one hand and the ultrasound handpiece with the other. This requirement for two-handed coordination places extremely high demands on the operator's skills and spatial awareness. During operation, when the imaging effect at the needle knife tip is poor, the operator needs to adjust the orientation of the ultrasound probe to obtain a clear ultrasound image, while also continuously adjusting the direction and depth of the needle knife to handle complex anatomical structures and lesions. This delicate operation not only requires medical personnel to possess rich clinical experience and professional knowledge, but also extremely high concentration and hand-eye coordination. Therefore, how to better locate the needle knife tip in an ultrasound environment and reduce the operational difficulty of combining ultrasound and needle knife manipulation has become a technical problem that needs to be addressed in this field. Utility Model Content

[0004] In view of the above problems, this application provides an ultrasound-adjustable needle knife to improve the imaging effect of the needle knife under ultrasound and reduce the difficulty of needle knife operation.

[0005] To achieve the above objectives, this application provides an ultrasound-adjustable needle knife, comprising: an outer needle knife and a needle core;

[0006] The external needle knife includes a handle and a needle body connected to the handle at the top. The needle body is provided with a first cutting edge and an ultrasonic imaging groove at the end. A channel is provided in the middle of the needle body, and the channel extends from the top of the handle to the first cutting edge. The needle core is used to insert into the needle body through the channel and extend the end of the needle core out of the first cutting edge. The end of the needle core is provided with a second cutting edge.

[0007] The needle body includes an outer needle tube and an inner needle tube coaxially arranged with respect to the outer needle tube and rotatable in the circumferential direction; the ultrasonic imaging groove includes a first groove disposed at the end of the outer needle tube and a second groove disposed at the end of the inner needle tube; the end of the outer needle tube is provided with a plurality of windows spaced apart in the circumferential direction, so that the second groove and the first groove are exposed together at the end of the outer needle tube; the bottom of the handle is provided with an adjustment knob, which is connected to the inner needle tube and is used to adjust the circumferential position of the inner needle tube so that different positions of the second groove are located within the windows.

[0008] Furthermore, a plurality of second grooves are distributed along the circumference of the inner needle tube, and the reflection angle of each second groove gradually changes.

[0009] Furthermore, the reflection angles of each of the first grooves distributed circumferentially along the outer needle tube are the same; the size of the first groove is larger than the size of the second groove.

[0010] Furthermore, the first cutting edge is a single-sided beveled blade.

[0011] Furthermore, the exterior of the first groove is coated with an ultrasonic imaging coating.

[0012] Furthermore, it also includes a syringe; the top of the handle is provided with a connection port for connecting the syringe, which is used to inject therapeutic fluid through the channel.

[0013] Furthermore, the connection port is provided with a connecting thread or a snap-fit ​​structure to connect the syringe.

[0014] Unlike existing technologies, the ultrasonically adjustable needle knife in the above-mentioned technical solution comprises an outer needle tube and an inner needle tube. The outer needle tube has a first groove at its end, and the inner needle tube has a second groove at its end. The first and second grooves have different ultrasonic reflection effects. By rotating the adjustment knob, different positions of the second groove can be positioned within the window, thus adjusting the ultrasonic imaging effect of the needle knife tip without adjusting the orientation of the ultrasonic probe. Therefore, this technical solution improves the positioning effect of the needle knife tip and facilitates needle knife operation.

[0015] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0016] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0017] In the accompanying drawings of the instruction manual:

[0018] Figure 1 This is a schematic diagram of the structure of the ultrasound-adjustable needle knife described in a specific embodiment;

[0019] Figure 2 This is a schematic diagram of the external needle knife described in a specific embodiment;

[0020] Figure 3 As described in the specific implementation Figure 2 A magnified view of part A in the middle;

[0021] Figure 4 This is a schematic diagram illustrating the connection between the external needle knife and the syringe in a specific embodiment;

[0022] The reference numerals used in the above figures are explained as follows:

[0023] 1. Needle core; 2. External needle knife; 3. Syringe;

[0024] 21. Handle; 210. Channel; 211. Connecting port; 22. Needle body; 221. Outer needle tube; 222. Inner needle tube; 23. Ultrasonic imaging groove; 231. First groove; 232. Second groove; 233. Window; 24. Adjustment knob. Detailed Implementation

[0025] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0026] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0027] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0028] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0029] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0030] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0031] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0032] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0033] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0034] In related technologies, the imaging effect of ultrasound equipment is affected by the orientation of the ultrasound probe. The reflection of ultrasound waves by the needle tip varies at different orientations and angles, thus affecting the imaging effect. These technologies require constant adjustment of the ultrasound probe's orientation during needle insertion to clearly visualize the needle tip's position. This places high demands on the operator. Furthermore, adjusting the needle tip's orientation to achieve better imaging may lead to needle deviation, potentially damaging surrounding nerves, blood vessels, and other tissues. Therefore, in these technologies, achieving optimal imaging results is primarily achieved by adjusting the ultrasound probe.

[0035] To address this technical problem, this embodiment provides an ultrasound-adjustable needle knife. Please refer to [link / reference]. Figures 1 to 4 In this embodiment, the ultrasound-adjustable needle knife can be used with an ultrasound device. The ultrasound device can display the position of the needle knife tip, allowing for guidance during needle insertion. Furthermore, in this embodiment, the ultrasound imaging effect of the needle knife tip can be adjusted by rotating the adjustment knob. Therefore, it is unnecessary to operate the ultrasound probe with one hand and the needle knife with the other, reducing the technical requirements for needle knife operation and improving its accuracy.

[0036] like Figure 1 As shown, the ultrasound-adjustable needle knife includes an outer needle knife 2 and a needle core 1. The outer needle knife 2 includes a handle 21 and a needle body 22 with its tip connected to the handle. The length of the needle body 22 is 4-6 cm. The end of the needle body 22 is provided with a first cutting edge and an ultrasound imaging groove 23. Figure 2 As shown, a channel 210 is provided in the middle of the needle body 22, and the channel 210 extends from the top of the handle 21 to the first cutting edge; the needle core 1 is used to insert into the needle body 22 through the channel 210, and the end of the needle core 1 extends out of the first cutting edge, and the end of the needle core 1 is provided with a second cutting edge. The first and second cutting edges can be single-sided beveled blades. In other embodiments, the first and second cutting edges can also be double-sided flat blades.

[0037] When performing needle knife therapy, the needle core 1 can be inserted into the channel 210 of the needle body 22 and fixed to the handle 21 by means of threaded connection or snap-fit. Then the operator holds the handle 21 and inserts the end of the needle body 22 into the lesion in the body.

[0038] like Figure 2 and Figure 3 As shown, in this embodiment, the needle body 22 includes an outer needle tube 221 and an inner needle tube 222 coaxially arranged with the outer needle tube 221 and rotatable relative to it circumferentially; the ultrasound imaging groove 23 includes a first groove 231 disposed at the end of the outer needle tube 221 and a second groove 232 disposed at the end of the inner needle tube 222; the end of the outer needle tube 221 is provided with a plurality of windows 233 spaced circumferentially, so that the second groove 232 and the first groove 231 are exposed together at the end of the outer needle tube 221. The window is formed by hollowing out the end portion of the outer needle tube 221, so that the second groove 232 located at the window is not covered; the ultrasound waves can be reflected back by the first groove and the second groove. A plurality of second grooves are distributed circumferentially along the inner needle tube, and the reflection angle of each second groove gradually changes. Furthermore, the reflection angle of each first groove distributed circumferentially along the outer needle tube is the same; the size of the first groove is larger than the size of the second groove.

[0039] like Figure 1 and Figure 2 As shown, in this embodiment, an adjustment knob 24 is provided at the bottom of the handle 21. The adjustment knob 24 can rotate circumferentially relative to the handle, and the adjustment knob 24 is connected to the inner needle tube 222. The adjustment knob 24 is used to adjust the circumferential position of the inner needle tube so that different positions of the second groove are located within the window. When the adjustment knob 24 is rotated, the inner needle tube 222 and the second groove thereon also rotate synchronously with the adjustment knob 24, so that different positions of the second groove 232 on the circumference of the inner needle tube 222 are located within the window. Since the reflection angle of the second groove 232 on the circumference is different, the ultrasound reflection effect of the needle knife tip can be adjusted, thereby adjusting the ultrasound imaging effect on the ultrasound equipment.

[0040] Therefore, when using the ultrasound-adjustable needle knife in this embodiment, if the imaging effect at the tip of the needle knife is poor, it is only necessary to rotate the adjustment knob 24. There is no need to adjust the position of the ultrasound probe, which reduces the difficulty of operating the needle knife in an ultrasound environment and improves the accuracy of needle knife operation.

[0041] In some embodiments, to improve the ultrasonic reflection effect of the first groove, an ultrasonic imaging coating is applied to the outside of the first groove. The ultrasonic imaging coating may be made of a medical thermoplastic polymer such as barium sulfate.

[0042] like Figure 4 As shown, in this embodiment, the ultrasound-adjustable needle knife also includes a syringe 3; the top of the handle 21 is provided with a connection port 211 to connect the syringe 3, and the syringe 3 is used to inject therapeutic fluid through the channel. The connection port 211 is provided with a connecting thread or a snap-fit ​​structure to connect the syringe 3.

[0043] like Figure 4 As shown, when injection treatment is required, the needle core 1 can be removed from the channel 210, and then the syringe 3 containing the treatment liquid can be connected to the handle 21 to make the syringe 3 communicate with the channel 210. Then the treatment liquid can be injected into the lesion at the end of the needle through the channel 210.

[0044] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A needle knife with adjustable ultrasonic imaging, characterized in that, include: External needle knife and needle core; The external needle knife includes a handle and a needle body connected to the handle at the top. The needle body is provided with a first cutting edge and an ultrasonic imaging groove at the end. A channel is provided in the middle of the needle body, and the channel extends from the top of the handle to the first cutting edge. The needle core is used to insert into the needle body through the channel and extend the end of the needle core out of the first cutting edge. The end of the needle core is provided with a second cutting edge. The needle body includes an outer needle tube and an inner needle tube coaxially arranged with respect to the outer needle tube and rotatable in the circumferential direction; the ultrasonic imaging groove includes a first groove disposed at the end of the outer needle tube and a second groove disposed at the end of the inner needle tube; the end of the outer needle tube is provided with a plurality of windows spaced apart in the circumferential direction, so that the second groove and the first groove are exposed together at the end of the outer needle tube; the bottom of the handle is provided with an adjustment knob, which is connected to the inner needle tube and is used to adjust the circumferential position of the inner needle tube so that different positions of the second groove are located within the windows.

2. The ultrasound-adjustable needle knife according to claim 1, characterized in that, Multiple second grooves are distributed along the circumference of the inner needle tube, and the reflection angle of each second groove gradually changes.

3. The ultrasound-adjustable needle knife according to claim 2, characterized in that, The reflection angles of the first grooves distributed circumferentially along the outer needle tube are the same; the size of the first groove is larger than the size of the second groove.

4. The ultrasound-adjustable needle knife according to claim 1, characterized in that, The first cutting edge is a single-sided beveled blade.

5. The ultrasound-adjustable needle knife according to claim 1, characterized in that, The outer surface of the first groove is coated with an ultrasonic imaging coating.

6. The ultrasonically adjustable needle knife according to claim 1, characterized in that, It also includes a syringe; the top of the handle is provided with a connection port for connecting the syringe, which is used to inject therapeutic fluid through the channel.

7. The ultrasonically adjustable needle knife according to claim 6, characterized in that, The connection port is provided with a connecting thread or a snap-fit ​​structure to connect the syringe.

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