CGM guide needle structure

Abstract

The utility model relates to the technical field of medical instruments, in particular to a CGM guide needle structure which comprises a needle tube and a needle tip arranged at the front end of the needle tube, the needle tip comprises a transition section and an edged section connected with the transition section, the edged section is used for cutting the skin of a user, the transition section is connected with the needle tube, and the edged section is used for cutting the skin of the user. The width of the edged section is smaller than that of the needle tube, so that the needle tip forms a semi-edged structure. The length of the edging section is reduced by arranging the transition section on the needle tip, and the maximum width of the edging section is smaller than the width of the needle tube, so that the cutting length of the needle tip to the skin tissue in the implanting process of the sensor is reduced, the incision of the skin tissue is reduced, and the phenomenon that the bleeding amount is large in the implanting process is effectively avoided.

Description

TECHNICAL FIELD

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

[0002] CGM (Continuous Glucose Monitoring, that is, continuous blood sugar monitoring system) is a kind of monitoring technology that monitors the glucose concentration of subcutaneous interstitial fluid by glucose sensor, thereby indirectly reflecting blood sugar level.

[0003] Guide needle is a kind of medical instrument specially designed for CGM, 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 adopted full-open blade structure (see Figure 1 ), and the full-open blade of needle tip forms longer cutting bevel, so that the opening of skin tissue cut by user is larger, and the phenomenon of more bleeding easily occurs. INVENTION CONTENTS

[0005] The utility model aims at: provide a kind of CGM guide needle structure, for the deficiency of prior art, it aims at solving the technical problem that the needle tip of current CGM guide needle is full-open blade structure, leading to the opening of skin cut by needle tip is larger, and the phenomenon of more bleeding easily occurs.

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

[0007] A kind of CGM guide needle structure, including needle tube and the needle tip of being set to the front end of needle tube, needle tip includes transition section and the blade opening section connected with transition section, blade opening section is used to cut user skin, transition section is connected with needle tube, the width of blade opening section is less than the width of needle tube, to make needle tip form half-open blade structure.

[0008] The utility model is further provided as: transition section and blade opening section are all along the length direction of needle tube.

[0009] The utility model is further provided as: blade opening section has blade opening inclined surface along the direction of thickness.

[0010] The utility model is further provided as: transition section includes inclined surface section and straight section connected with inclined surface section, straight section is connected with blade opening section, and inclined surface section is connected with needle tube.

[0011] The utility model is further provided as: arc surface is arranged between inclined surface section and straight section.

[0012] The utility model further sets up: the maximum width of the blade opening section is same with the width of the straight section, the width of the inclined section is greater than the width of the straight section.

[0013] Compared with the prior art, the application has the beneficial effects that: the utility model discloses a needle tube and the needle tip arranged at the front end of the needle tube, the needle tip includes a transition section and a blade opening section connected with the transition section, the blade opening section is used for cutting the skin of the user, the transition section is connected with the needle tube, and the width of the blade opening section is less than the width of the needle tube, so that the needle tip forms a half-blade opening structure. The application reduces the length of the blade opening section by arranging the transition section on the needle tip, and the maximum width of the blade opening section is less than the width of the needle tube, thereby reducing the cutting length of the needle tip on the skin tissue during the sensor implantation process, reducing the incision of the skin tissue, and effectively avoiding the phenomenon of excessive bleeding during the implantation process. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative effort.

[0015] Figure 1 is a full-blade opening structure schematic diagram of the needle tip in the prior art;

[0016] Figure 2 is a whole structure schematic diagram of the utility model;

[0017] Figure 3 is Figure 2 is an enlarged view of A in the figure.

[0018] The label details involved in the above drawings are as follows:

[0019] 1-needle tube;

[0020] 2-needle tip, 21-blade opening section, 22-transition section, 221-straight section, 222-inclined section, 223-arc surface. DETAILED DESCRIPTION

[0021] In the description of the application, the terms "mounting", "connection", "connection" and the like should be understood broadly, for example: "connection" can be fixed connection, or detachable connection, or integrally connected; "connection" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0022] In the description of the present application, the technical terms "upper", "lower", "front", "rear", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0023] In order to more clearly understand the above-mentioned purposes, technical solutions and advantages of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application, and detailed understanding will be given to how to solve the problems raised in the above-mentioned background art.

[0024] As shown in Figure 2 and Figure 3 , a CGM guide needle structure includes a needle tube 1 and a needle tip 2 arranged at the front end of the needle tube 1, the needle tip 2 includes a transition section 22 and a blade opening section 21 connected with the transition section 22, the blade opening section 21 is used for cutting the skin of a user, the transition section 22 is connected with the needle tube 1, and the width of the blade opening section 21 is smaller than the width of the needle tube 1, so that the needle tip 2 forms a half-blade opening structure.

[0025] Through the above-mentioned scheme, the needle tube 1 is used for accommodating a sensor, the needle tube 1 and the needle tip 2 are integrally formed, in use, the blade opening section 21 first cuts the skin tissue of a user, the cut is up to the transition section 22, that is, the maximum width of the blade opening section 21 is the length of the cut, and the maximum width of the blade opening section 21 is smaller than the width of the needle tube 1, thereby reducing the cutting length of the skin tissue by the needle tip 2 in the sensor implantation process, reducing the cut of the skin tissue, and effectively avoiding the phenomenon of excessive bleeding in the sensor implantation process.

[0026] As shown in Figure 2 and Figure 3 , as an improved specific embodiment, the transition section 22 and the blade opening section 21 are arranged along the length direction of the needle tube 1, so that the transition section 22 and the blade opening section 21 can be machined from one end of the needle tube 1, and the thicknesses of the needle tube 1, the transition section 22 and the blade opening section 21 are ensured to be the same.

[0027] As shown in Figure 3 , as an improved specific embodiment, the blade opening section 21 has a blade opening inclined surface arranged along the thickness direction, the blade opening inclined surface is arranged in two and connected, arranged on both sides of the blade opening section 21 respectively, and the blade opening inclined surface is arranged obliquely from top to bottom, so that the blade opening section 21 has a sharp cutting edge line.

[0028] As shown in Figure 3As shown, in one specific embodiment of the improvement, the transition section 22 includes a beveled section 222 and a straight section 221 connected to the beveled section 222. The straight section 221 is connected to the blade section 21, and the transition section 22 is connected to the needle tube 1. The straight section 221 has smooth straight surfaces on both sides, and the beveled section 222 has smooth beveled surfaces on both sides. At the same time, the needle tube 1 also has arc surfaces on both sides. The arc surfaces and the smooth beveled surfaces are connected to avoid the user experiencing a stinging sensation during the insertion of the needle tip 2.

[0029] like Figure 3 As shown, in one specific implementation of the improvement, an arc-shaped surface 223 is provided between the inclined section 222 and the straight section 221. Based on the connection between the smooth straight surface and the smooth inclined surface, the straight section 221 and the inclined section 222 are connected at an angle to generate a spike. The spike is then polished to form the arc-shaped surface 223, which can avoid the secondary cutting sensation during the insertion of the needle tip 2 and ensure the user's experience.

[0030] like Figure 2 and Figure 3 As shown, in one specific implementation of the improvement, the maximum width of the sharpened section 21 is the same as the width of the straight section 221, which shortens the overall length of the sharpened section 21 and thus affects the length of the cut. The width of the beveled section 222 is greater than the width of the straight section 221, so that the sharpened section 21 connects to the needle tube 1 through the straight section 221 and the transition section 22, thereby forming a semi-sharpened structure of the needle tip 2, which changes the cut length and also ensures the user's comfort.

[0031] 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 CGM guide needle structure, comprising a needle tube and a needle tip disposed at the front end of the needle tube, characterized in that, The needle tip includes a transition section and a sharpened section connected to the transition section. The sharpened section is used to cut the user's skin. The transition section is connected to the needle tube. The width of the sharpened section is smaller than the width of the needle tube, so that the needle tip forms a semi-sharp structure.

2. The CGM guide pin structure according to claim 1, characterized in that, Both the transition section and the blade-sharpening section are arranged along the length direction of the needle tube.

3. The CGM guide pin structure according to claim 2, characterized in that, The bladed section has a bladed bevel along the thickness direction.

4. The CGM guide pin structure according to claim 2, characterized in that, The transition section includes a sloped section and a straight section connected to the sloped section. The straight section is connected to the bladed section, and the sloped section is connected to the needle tube.

5. The CGM guide pin structure according to claim 4, characterized in that, An arc-shaped surface is provided between the inclined section and the straight section.

6. The CGM guide pin structure according to claim 4, characterized in that, The maximum width of the sharpened section is the same as the width of the straight section, and the width of the beveled section is greater than the width of the straight section.

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