Ultrasound interventional therapy puncture needle

Abstract

The utility model relates to medical supplies technical field especially is involved in a kind of ultrasound intervention treatment puncture needle, including needle body, scale line and limiting device are equipped on needle body, limiting device includes shell, limit component is equipped in shell, limit component includes extrusion lever, extrusion lever middle part is rotatably connected with shell inner wall, and elastic body is equipped between extrusion lever one end and shell, the direction of other end is close to the shell and is equipped with button, button passes through shell and is slidably connected with it, both ends of shell middle part are equipped with through-hole respectively, needle body passes through through-hole and part is located in shell, limit component is symmetrically arranged in the both sides of needle body outer surface, needle head of needle body is flat structure, needle head can replace needle-knife release treatment effect. Medical staff only needs to loosen or press button, can realize the location or removal of needle body, saves the operation time and energy in surgical process, significantly improves surgical efficiency. This puncture needle can also avoid secondary puncture, and play a therapeutic effect simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, and in particular to an ultrasound interventional puncture needle. Background Technology

[0002] In ultrasound-guided interventional therapy, precise control of the insertion depth of the puncture needle is crucial. Existing puncture needles have several shortcomings in depth control. Firstly, most puncture needles lack effective depth adjustment structures, forcing medical personnel to rely primarily on their experience and feel to control the depth. This method struggles to ensure consistency and accuracy in depth each time, potentially leading to poor treatment outcomes and even unnecessary medical risks, such as damage to surrounding tissues. Secondly, some puncture needles with simple depth adjustment functions are complex and cumbersome to operate, requiring significant effort from medical personnel during the procedure. This not only reduces surgical efficiency but can also compromise the safety and precision of the surgery due to distraction. For example, CN 212879488 U discloses an ultrasound-guided interventional puncture needle with adjustable insertion depth, which uses a threaded structure to adjust the depth. Adjustment requires tightening a locking component to cause the sliding component to uniformly contract and deform, clamping the needle body and forming a lock, making the operation cumbersome. Therefore, there is an urgent need for an ultrasound-guided interventional puncture needle that can achieve precise and convenient depth control. Utility Model Content

[0003] The purpose of this invention is to provide an ultrasound interventional puncture needle that can solve the above-mentioned technical problems.

[0004] This utility model provides an ultrasound interventional puncture needle, including a needle body with graduation lines and a limiting device. The limiting device includes a housing, and a limiting component is provided inside the housing. The limiting component includes a compression rod, the middle of which is rotatably connected to the inner wall of the housing. One end of the compression rod is provided with an elastic body in a compressed state between it and the housing, and the other end is provided with a button near the housing. The button passes through the housing and is slidably connected to it. A limiting protrusion is provided on the rod of the button to prevent the button from separating from the housing. Through holes are provided at both ends of the middle part of the housing, through which the needle body passes and partly resides inside the housing. The limiting component is symmetrically arranged on both sides of the outer surface of the needle body.

[0005] Furthermore, the squeeze rod includes a horizontal rod portion and an inclined rod portion, the horizontal rod being close to the needle body, and the end of the inclined rod being located in the movement path of the button.

[0006] Furthermore, the horizontal bar has an anti-slip layer on the side near the needle body.

[0007] Furthermore, the anti-slip layer is made of silicone.

[0008] Furthermore, the elastomer is an elastic rubber block, but other elastic components, such as a spring, can also be used. When an elastic rubber block is used, its specific shape is determined according to the internal space of the housing.

[0009] Furthermore, the outer surface of the housing is provided with anti-slip texture.

[0010] Furthermore, the tip of the needle is coated with a smooth hydrophilic layer.

[0011] Furthermore, the needle body is made of medical-grade stainless steel.

[0012] Furthermore, the limiting device is made of medical-grade plastic. Specifically, all components except the anti-slip layer are made of plastic to reduce the overall weight.

[0013] Furthermore, the needle tip of the needle body has a flat structure, which can reduce the risk of puncture and can replace needle knife release treatment.

[0014] Furthermore, a radiopaque layer is provided on the outer surface of the needle near the needle tip.

[0015] Beneficial effects:

[0016] This invention provides medical personnel with an intuitive reference for needle insertion depth by setting scale lines on the needle body, avoiding the inaccuracies and inconsistencies caused by relying solely on experience and feel to control the needle insertion depth. This ensures a clear quantitative indicator for each insertion depth, effectively improving the stability of treatment results. Simultaneously, the limiting devices on both sides of the needle's outer surface precisely limit the needle insertion depth, further ensuring accuracy. Medical personnel only need to release or press a button to drive the squeezing rod to rotate around the rotating connection point on the inner wall of the housing, thereby limiting or releasing the needle insertion depth. Unlike existing technologies, there is no need for cumbersome tightening operations, saving time and effort during surgery and significantly improving surgical efficiency. Through the cooperation of simple components such as the squeezing rod, elastomer, and button, precise and convenient needle insertion depth control is achieved. The overall structure is simple and compact, easy to manufacture and maintain, which helps reduce production costs and promotes widespread application. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the limiting device when the needle body is in a limited position according to this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the limiting device in the released limiting state of the needle body in this utility model;

[0021] Figure 4 This is a schematic diagram of another structure of the shell in this utility model;

[0022] Figure 5 This is a schematic diagram of the needle body in Embodiment 2 of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1-needle body, 2-housing shell, 3-pressing rod, 301-horizontal rod, 302-tilting rod, 4-elastic body, 5-button, 6-through hole, 7-anti-slip layer, 8-needle seat. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example 1

[0028] An ultrasound-guided interventional puncture needle, such as Figure 1-2 As shown, the device includes a needle body 1, which has graduation lines and a limiting device. The graduation lines are made using a high-precision etching process, ensuring clear and long-lasting markings. This provides medical personnel with accurate depth references during operation, helping them to accurately control the puncture depth and avoid unnecessary harm to the patient due to improper depth. The limiting device includes a housing 2, which contains a limiting component. The limiting component includes a squeezing rod 3, the middle of which is rotatably connected to the inner wall of the housing 1. An elastic body 4 is provided between one end of the squeezing rod 3 and the housing 1, and a button 5 is provided at the other end near the housing 1. The button 5 passes through the housing and is slidably connected to it. A limiting protrusion is provided on the rod of the button 5 to prevent the button from separating from the housing. Through holes 6 are provided at both ends of the middle of the housing 2. The needle body 1 passes through the through holes 6 and is partially located inside the housing 2. The limiting components are symmetrically arranged on both sides of the outer surface of the needle body 1.

[0029] The compression rod 3 includes a horizontal rod 301 and an inclined rod 302. The horizontal rod 301 is close to the needle body 1, and the end of the inclined rod 302 is located in the movement path of the button 5. In actual use, when the needle body 1 needs to be limited, the horizontal rod 301 can directly contact the needle body 1 and apply pressure. The pressure comes from the elastic body 4; that is, even without pressing the button 5, the elastic body 4 applies pressure to the horizontal rod 301, causing the symmetrically positioned horizontal rods 301 to clamp the needle body 1. An anti-slip layer 7 is provided on the side of the horizontal rod 301 closest to the needle body 1 to prevent the needle body 1 from sliding after the limiting is completed, ensuring the stability and safety of the puncture needle during operation.

[0030] The anti-slip layer 7 is made of silicone. Silicone has good flexibility and wear resistance, which not only allows it to adhere tightly to the surface of the needle and provide strong friction, but also makes it chemically stable, non-toxic and harmless, meeting the safety standards of medical materials and causing no adverse effects on patients. It also has a long service life, ensuring that the anti-slip layer maintains good anti-slip performance even after multiple uses.

[0031] The elastomer 4 is a key component for resetting the compression rod 3. It can be an elastic rubber block or other elastic components, such as a spring. When using an elastic rubber block, its specific shape will be customized according to the internal space of the housing to ensure that the elastic rubber block can exert its optimal elastic performance within the limited space, ensuring that the compression rod can be reset quickly and accurately after each operation. Figure 1 The elastomer shown only indicates its location and does not represent its specific shape.

[0032] Figure 1 The shell shown is for illustrative purposes only; its actual shape is not limited to a rectangle, such as... Figure 2 As shown, the flat structure makes it easy for medical staff to use, and the button can be located in a recessed area. Figure 2 The shape of the casing shown also makes it convenient for medical staff to hold the casing and insert the needle.

[0033] The outer surface of the casing has anti-slip textures, which can increase the friction between the hand and the casing. Even if the hands are sweaty or there are other conditions that are not conducive to gripping, medical staff can still hold the casing firmly, ensuring the stability and safety of operation and effectively reducing the risk of operational errors caused by hand slippage.

[0034] The needle tip is coated with a smooth, hydrophilic layer, and the needle body is made of medical-grade stainless steel. The limiting device is made of medical-grade plastic. Specifically, except for the anti-slip layer, all other components are made of plastic to reduce overall weight. Furthermore, the needle tip has a standard medical puncture needle shape, and the outer surface of the needle near the tip has a contrast-enhancing layer that allows for clear visualization under ultrasound and other imaging equipment. This helps medical personnel observe the needle's position and direction in real time and accurately during the procedure, ensuring precise puncture to the target location and improving the accuracy and safety of the treatment.

[0035] Example 2

[0036] The basic structure is the same as in Example 1, except that the needle is constructed as follows. Figure 5 As shown, the puncture needle tip has an oblique opening, the same width as the needle body. This reduces the risk of puncture and can replace needle knife release treatment.

[0037] Working and usage process:

[0038] Under normal conditions, the needle body 1 passes through the through hole 6, and the housing 2 is fitted on the outside of the needle body 1. Before inserting the needle, the depth of insertion is adjusted in advance. Using the scale line on the needle body as a reference, the position of the housing 2 on the needle body 1 is adjusted. Two fingers are placed on the button 5 at the same time and the button 5 is pressed at the same time. The button acts on the end of the tilting rod 302, which then drives the horizontal rod 301 to rotate, so that the side of the horizontal rod 301 close to the needle body 1 moves away from the needle body 1, releasing the limit on the needle body 1. In this way, the needle body 1 and the housing 2 become a sliding connection. After adjusting the relative position of the housing 2 and the needle body 1, the button 5 is released. Under the action of the elastic body 4, the horizontal rod 301 squeezes the main needle body again, completing the limit on the needle body. When inserting the needle, the needle holder or the outer surface of the housing can be held to complete the needle insertion action according to the actual situation and operating habits.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An ultrasound-guided interventional puncture needle, characterized in that, The device includes a needle body with graduated lines and a limiting device. The limiting device includes a housing with a limiting component inside. The limiting component includes a squeezing rod with its middle part rotatably connected to the inner wall of the housing. An elastic body is provided between one end of the squeezing rod and the housing, and a button is provided at the other end near the housing. The button passes through the housing and is slidably connected to it. Through holes are provided at both ends of the middle part of the housing. The needle body passes through the through holes and is partially located inside the housing. The limiting component is symmetrically arranged on both sides of the outer surface of the needle body.

2. The ultrasound-guided interventional puncture needle according to claim 1, characterized in that, The squeezing rod includes a horizontal rod portion and an inclined rod portion, with the horizontal rod close to the needle body and the end of the inclined rod located in the movement path of the button.

3. The ultrasound-guided interventional puncture needle according to claim 2, characterized in that, The horizontal bar has an anti-slip layer on the side closest to the needle body.

4. The ultrasound-guided interventional puncture needle according to claim 3, characterized in that, The anti-slip layer is made of silicone.

5. The ultrasound-guided interventional puncture needle according to claim 1, characterized in that, The elastomer is an elastic rubber block.

6. The ultrasound-guided interventional puncture needle according to claim 1, characterized in that, The outer surface of the shell is provided with anti-slip texture.

7. The ultrasound-guided interventional puncture needle according to claim 1, characterized in that, The tip of the needle is coated with a smooth hydrophilic layer.

8. The ultrasound-guided interventional puncture needle according to claim 1, characterized in that, The needle body is made of medical-grade stainless steel, and the limiting device is made of medical-grade plastic.

9. The ultrasound-guided interventional puncture needle according to claim 1, characterized in that, The needle tip of the needle body has a flat structure.

10. The ultrasound-guided interventional puncture needle according to claim 1, characterized in that, The outer surface of the needle near the needle tip has a radiopaque layer.

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