Guide needle structure of blood glucose monitoring system

Abstract

The utility model relates to the technical field of medical instruments, in particular to a guide needle structure of a blood glucose monitoring system, which comprises a needle tube, a needle tip section is arranged at the front end of the needle tube, an edged face and a straight face are respectively arranged on the upper portion and the lower portion of two side faces of the needle tip section, and the edged face and the straight face are connected to form a first ridge. The flat-straight face is perpendicular to the bottom face of the needle tip section, and the edging face intersects with the top face of the needle tip section. The two side faces of the needle tip section are provided with the edged faces and the flat and straight faces below the edged faces, and the first ridge lines are arranged between the edged faces and the flat and straight faces, so that it is guaranteed that the needle tip section is sharp, meanwhile, the strength of the needle tip section is enhanced, the phenomenon that the needle tip section is deformed or edged in the production process can be avoided, and the service life of the needle tip section is prolonged. And breakage and residual in a human body during use by a user are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, it is a kind of guide needle structure of blood sugar monitoring system. BACKGROUND

[0002] CGM is continuous glucose monitoring system, it is a new type of minimally invasive blood sugar monitoring technology, it records the electrical signal generated by interstitial fluid glucose oxidation reaction by microelectrode implanted in subcutaneous tissue, indirectly reflects blood sugar level.

[0003] Guide needle is the medical instrument specially designed for CGM dynamic blood glucose meter, is a slender, precise medical tool, mainly used to assist CGM sensor to be accurately, safely implanted in human tissue, so as to carry out continuous blood sugar monitoring.

[0004] At present, the needle tip of the existing guide needle is mostly directly used full-open blade structure (see Figure 1 ), the needle tip of full-open blade structure tends to be infinitely small, very sharp, but also very fragile, prone to deformation or blade curling in production process, and there is the risk of breaking and remaining in human body when user uses. INVENTION CONTENTS

[0005] The utility model aims at: provide a kind of guide needle structure of blood sugar monitoring system, for the deficiency of prior art, it aims at solving the technical problem that the needle tip of existing guide needle is full-open blade structure, prone to deformation or blade curling, and there is the risk of breaking and remaining in human body.

[0006] To achieve the above object, the technical scheme adopted by the utility model is:

[0007] A kind of guide needle structure of blood sugar monitoring system, including needle tube, the front end of needle tube is provided with needle tip section, the upper portion and lower portion of the two side faces of needle tip section are provided with blade face and flat surface respectively, first edge line is formed between blade face and flat surface, flat surface is perpendicular to the bottom surface of needle tip section, blade face intersects with the top surface of needle tip section.

[0008] The utility model is further provided as: blade face is smooth inclined plane.

[0009] The utility model is further provided as: the front end of two blade faces intersects to form second edge line, the front end of two flat surfaces intersects to form third edge line, first edge line, second edge line and third edge line intersect.

[0010] The utility model is further provided as: the side surface of needle tube has arc surface, arc surface is connected with the rear end of blade face and flat surface.

[0011] The present invention is further configured such that both the top and bottom surfaces of the syringe are flat.

[0012] The present invention is further configured such that: the needle tube is provided with a receiving groove along its length.

[0013] Compared with the prior art, the beneficial effects of this application are as follows: This utility model includes a needle tube, the front end of which is provided with a needle tip. The upper and lower parts of both sides of the needle tip are respectively provided with a sharpening surface and a straight surface. A first ridge line is formed between the sharpening surface and the straight surface. The straight surface is perpendicular to the bottom surface of the needle tip, and the sharpening surface intersects with the top surface of the needle tip. This application ensures the sharpness of the needle tip by providing sharpening surfaces on both sides of the needle tip and a straight surface below the sharpening surface, with a first ridge line between the sharpening surface and the straight surface. This also enhances the strength of the needle tip, preventing deformation or chipping during the manufacturing process and preventing breakage and residue in the body during use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the tip structure of a guide needle in the prior art;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model from one perspective;

[0017] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the overall structure of this utility model from another perspective.

[0019] The details of the reference numerals used in the above figures are as follows:

[0020] 1-Needle, 11-Arc-shaped surface, 12-Receiving groove;

[0021] 2-Needle tip, 21-Sharpening surface, 22-Straight surface;

[0022] 3 - First ridge line, 4 - Second ridge line, 5 - Third ridge line. Detailed Implementation

[0023] In the description of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary or secondary relationship of the indicated technical features. Terms such as "connected" and "linked" should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "linked" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] In the description of this application, the technical terms "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0025] In order to better understand the above-mentioned objectives, technical solutions and advantages of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings, so as to understand in detail how to solve the problems raised in the background art.

[0026] It should be noted that the guide needle in this embodiment is mainly used for sensor implantation in CGM continuous glucose meters. Before implantation, the skin can be locally disinfected, and then the guide needle is inserted into the predetermined position through a push device. The sensor is implanted in the subcutaneous tissue, and the guide needle is quickly retracted. The function of the guide needle is to provide a precise channel for the sensor. After implantation, the sensor will start monitoring blood glucose levels and transmit the data to a paired receiver or smartphone for users to view and analyze in real time. The guide needle can simplify the sensor implantation process and reduce pain and discomfort during use.

[0027] like Figure 1 As shown, in the prior art, most of the needle tips of the guide needles adopt a fully sharpened structure, such as the needle groove of an integrated guide needle (application number: 202320825995.X) and the tip of a guide needle (application number: 202020225469.6). The needle tips tend to be infinitely small and are very sharp, but they are also relatively fragile, which leads to safety hazards.

[0028] like Figures 2 to 4As shown, the guide needle structure in this embodiment includes a needle tube 1, which can be rectangular and made of high-quality medical stainless steel, such as austenitic stainless steel and duplex stainless steel, to ensure sufficient strength of the guide needle during use. The front end of the needle tube 1 is provided with a needle tip 2, which has a triangular structure. The needle tip 2 and the needle tube 1 are integrally formed. The upper and lower parts of both sides of the needle tip 2 are respectively provided with a cutting surface 21 and a straight surface 22. The straight surface 22 is a vertically smooth surface, making the straight surface... 22 is perpendicular to the bottom surface of the needle tip 2, and the cutting surface 21 intersects the top surface of the needle tip 2. The flat surface 22 can increase the strength of the needle tip 2, and the cutting surface 21 can ensure the sharpness of the needle tip 2. The connection between the cutting surface 21 and the flat surface 22 forms the first ridge line 3. Since the cutting surface 21 and the flat surface 22 are connected at an angle, the first ridge line 3 can enable the needle tip 2 to quickly break through the skin and be inserted, avoiding the phenomenon of deformation or rolling of the needle tip 2 during the production process, and preventing it from breaking and remaining in the human body when used by the user.

[0029] like Figure 3 As shown, as an improved specific implementation, the cutting surface 21 is a smooth inclined surface. Specifically, the cutting surface 21 can be formed on the side of the needle tip section 2 through conventional processes, such as grinding, polishing, etc., so that the smooth and straight cutting surface 21 is set obliquely and forms an angle with the top surface of the needle tip section 2 and the straight surface 22 respectively.

[0030] like Figure 3 As shown, in one specific embodiment of the improvement, the front ends of the two sharpened surfaces 21 intersect to form a second ridge 4, which is formed on the upper part of the front end of the needle tip segment 2. The front ends of the two straight surfaces 22 intersect to form a third ridge 5, which is formed on the lower part of the front end of the needle tip segment 2. Since the sharpened surfaces 21 and the straight surfaces 22 are connected, the front ends of the two first ridges 3 are connected at the intersection of the second ridge 4 and the third ridge 5, so that the first ridge 3, the second ridge 4 and the third ridge 5 intersect. The second ridge 4 and the third ridge 5 form the needle tip insertion end. With the assistance of the first ridge 3, the needle tip segment 2 can effectively break through the skin. The needle tip segment 2 has sufficient sharpness and toughness, thereby effectively improving the implantation effect.

[0031] like Figure 2 and Figure 3 As shown, in one specific embodiment of the improvement, the side of the needle tube 1 has an arc-shaped surface 11. The arc-shaped surface 11 is formed by rounding the corners of the top side of the needle tube 1 to ensure the smoothness of the needle tube 1, thereby reducing the stinging sensation when the user uses it. The arc-shaped surface 11 extends along the length of the needle tube 1 until it connects with the rear end of the blade surface 21 and the straight surface 22.

[0032] like Figure 2 and Figure 4As shown, in one specific embodiment of the improvement, both the top and bottom surfaces of the needle 1 are flat. Specifically, the needle 1 has a rectangular structure, which allows the top and bottom surfaces to form smooth, flat surfaces, further preventing stinging sensations after the needle 1 is inserted into the skin.

[0033] like Figure 4 As shown, in one specific embodiment of the improvement, the needle tube 1 is provided with a receiving groove 12 along its length. Specifically, the receiving groove 12 is formed on the opposite side of the needle tube 1 with the arc-shaped surface 11, and the receiving groove 12 is formed through the center of the needle tube 1 along its length to form an auxiliary channel. The auxiliary channel can accommodate and guide the implantation of the sensor and reduce sensor contamination during the implantation process.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. All technical solutions within the scope of this utility model's concept are within the protection scope of this utility model. It should be pointed out that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A guide needle structure of a blood glucose monitoring system, characterized by, The needle tube is provided with a needle tip section at the front end, the upper and lower parts of the two side faces of the needle tip section are respectively provided with a beveled face and a flat face, the beveled face and the flat face are connected to form a first edge line, the flat face is perpendicular to the bottom face of the needle tip section, and the beveled face intersects with the top face of the needle tip section.

2. The introducer needle structure of a blood glucose monitoring system according to claim 1, wherein, The beveled face is a smooth beveled face.

3. The introducer needle structure of a blood glucose monitoring system according to claim 1, wherein, The front ends of the two beveled faces intersect to form a second edge line, the front ends of the two flat faces intersect to form a third edge line, and the first edge line, the second edge line and the third edge line intersect.

4. The introducer needle structure of a blood glucose monitoring system according to claim 1, wherein, The side face of the needle tube is an arc face, and the arc face is connected with the rear ends of the beveled face and the flat face.

5. The introducer needle structure of a blood glucose monitoring system according to claim 4, wherein, The top face and the bottom face of the needle tube are flat faces.

6. The introducer needle structure of a blood glucose monitoring system according to claim 5, wherein, The needle tube is provided with a containing groove along the length direction.

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