Needle assisting device and analyte sensor implanting device

Abstract

The utility model relates to the technical field of medical equipment, in particular to a needle assisting device and an analyte sensor implanting device. As the pressing shell of the needle assisting device is fixed with the protective cap, the pressing shell and the protective cap cannot move relatively. In a protection space defined by the pressing shell and the protection cap, the pressing shell and the installation piece are stopped to prevent the installation piece from moving in the direction of being implanted into the human body relative to the pressing shell, the protection cap and the installation piece are stopped to prevent the installation piece from moving in the direction opposite to the direction of being implanted into the human body, and therefore the installation piece, the pressing shell and the protection cap cannot move relative to each other, and the needle assisting device is not prone to being mistakenly triggered. The problem that in the transportation process of an existing analyte sensor implanting device, a pressing shell and an installation piece are prone to relative movement, and consequently a needle assisting device is prone to being triggered by mistake is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a needle assisting device and an analyte sensor implanting device. BACKGROUND

[0002] Traditional blood glucose measurement methods are complicated in use, have deep incisions, obvious pain, and can only measure a single value, so that diabetic patients cannot know their own glucose levels in real time. In order to know their glucose levels in real time, some patients choose to wear analyte sensors. The analyte sensor needs to be inserted into the human body by a sharp object (a guide needle) of an implanting device, so that the analyte sensor is in contact with the body fluid.

[0003] The current analyte sensor implanting device generally comprises a monitor and a needle assisting device. The needle assisting device is used to implant the analyte sensor of the monitor into the human body. The needle assisting device generally comprises a pressing shell, a mounting member in the pressing shell, and a guide needle rack arranged on the mounting member. The guide needle rack can drive the guide needle to move, so as to implant the analyte sensor into the human body. In use, the pressing shell is pressed to move relative to the mounting member, so as to trigger the mechanism in the needle assisting device, drive the guide needle rack to move, and thus drive the guide needle to move. In the current transportation process, the pressing shell and the mounting member are prone to relative movement due to factors such as falling and vibration, so that the needle assisting device is prone to be triggered by mistake. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a needle assisting device for solving the problem that the current analyte sensor implanting device is prone to be triggered by mistake due to the relative movement between the pressing shell and the mounting member in the transportation process.

[0005] In addition, the present application also provides an analyte sensor implanting device using the above needle assisting device.

[0006] In a first aspect, a needle assisting device is provided in an embodiment, comprising:

[0007] a pressing shell, a proximal end of the pressing shell being an operation end for pressing operation, and a distal end having an opening for implanting into the human body;

[0008] a mounting member, at least a part of the mounting member being mounted in the pressing shell;

[0009] an implanting rack, the implanting rack being movably mounted on the mounting member;

[0010] a guide needle, the guide needle being used to implant an analyte sensor into the human body, and the guide needle being arranged on the implanting rack;

[0011] and a protective cap which is detachably fixed with the pressing shell and covers the opening; the protective cap and the pressing shell enclose a protective space, the mounting member, the implant frame and the guide needle are all in the protective space; after the protective cap is separated from the pressing shell, pressing the pressing shell can make the pressing shell move relative to the implant frame to trigger the needle helper to make the implant frame drive the guide needle to move in the direction of implanting into the human body;

[0012] The pressing shell and the mounting member are in abutting engagement in the extension direction of the guide needle to prevent the mounting member from moving in the direction of implanting into the human body relative to the pressing shell, and the protective cap and the mounting member are in abutting engagement in the extension direction of the guide needle to prevent the mounting member from moving in the direction away from the human body relative to the protective cap.

[0013] Further, in an embodiment, the protective cap is fixed with the pressing shell after rotating relative to the pressing shell.

[0014] Further, in an embodiment, the protective cap is clamped and fixed with the pressing shell, and the protective cap is clamped in place after rotating relative to the pressing shell.

[0015] Further, in an embodiment, the pressing shell has a clamping groove, the protective cap has a clamping structure clamped into the clamping groove, the clamping structure and the groove wall of the clamping groove are in abutting engagement in the extension direction of the guide needle to prevent the protective cap from moving in the extension direction of the guide needle relative to the pressing shell, the pressing shell includes a clamping elastic arm extending along the circumference of the pressing shell, a free end of the clamping elastic arm is provided with an elastic arm protrusion, the elastic arm protrusion forms part of the groove wall of the clamping groove, and in the process of clamping the clamping structure into the clamping groove, the free end of the clamping elastic arm is deformed towards the inside of the pressing shell to make the clamping structure enter the clamping groove.

[0016] Further, in an embodiment, the inner wall of the protective cap has a protective cap stopper, the mounting member has a mounting member stopper, and the protective cap stopper and the mounting member stopper are in abutting engagement in the extension direction of the guide needle.

[0017] Further, in an embodiment, the mounting member includes a protruding portion protruding from the pressing shell, and the mounting member stopper is on the protruding portion.

[0018] Further, in an embodiment, the implant frame includes a locking structure for locking the mounting member with the implant frame.

[0019] The needle helper further comprises an implant spring for applying a spring force to the implant holder; and an unlock shell retaining structure on the implant holder and / or the mounting member, the unlock shell retaining structure for applying a retaining force to the press shell to retain the position of the press shell.

[0020] The press shell has an unlock portion for contacting the lock structure to unlock the implant holder from the lock structure, so that the implant holder moves distally under the spring force of the implant spring.

[0021] The press shell has a retaining release structure for contacting the unlock shell retaining structure after the press shell is pressed, to overcome the retaining force of the unlock shell retaining structure to release the retaining of the press shell by the unlock shell retaining structure, so that the unlock portion can unlock the lock structure.

[0022] Further, in an embodiment, the unlock shell retaining structure is on the proximal end of the implant holder, and the unlock shell retaining structure comprises a retaining arm extending from the distal end of the implant holder to the proximal end of the implant holder, the retaining arm retaining the position of the press shell by abutting the press shell.

[0023] Further, in an embodiment, the retaining release structure comprises a retaining release arm in the press shell, the retaining release arm extending from the proximal end of the press shell to the distal end of the press shell, the distal end of the retaining release arm abutting the proximal end of the retaining arm, at least one of the retaining arm and the retaining release arm being a spring arm, the distal end of the retaining release arm and / or the proximal end of the retaining arm having an abutting slope surface for deforming the retaining arm and / or the retaining release arm after the press shell is pressed to release the abutting relationship between the retaining release arm and the retaining arm.

[0024] In a second aspect, an embodiment provides an analyte sensor implantation device, comprising a monitor and the needle helper of any one of the first aspect, the monitor comprising an analyte sensor.

[0025] According to the above-mentioned embodiments of the needle helper, since the press shell of the needle helper is fixed with the protective cap, the press shell and the protective cap cannot move relative to each other. In the protective space enclosed by the press shell and the protective cap, the press shell and the mounting member are stopped, preventing the mounting member from moving relative to the press shell in the direction of implanting into the human body, and the protective cap and the mounting member are stopped, preventing the mounting member from moving away from the direction of implanting into the human body. In this way, the mounting member, the press shell and the protective cap cannot move relative to each other, the needle helper is not easy to be triggered by mistake, and the problem that the press shell and the mounting member of the current analyte sensor implantation device are easy to move relative to each other during transportation, causing the needle helper to be easily triggered by mistake, is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 Figure 1 is a perspective view of an analyte sensor implantation device according to one embodiment;

[0027] Figure 2 Figure 2 is a cross-sectional view of the analyte sensor implantation device of Figure 1 along line A-A;

[0028] Figure 3 Figure 3 is a cross-sectional view of the analyte sensor implantation device of Figure 1 along line A-A; Figure 2

[0029] Figure 4 Figure 4 is a cross-sectional view of the analyte sensor implantation device of Figure 1 from another perspective;

[0030] Figure 5 Figure 5 is a perspective view of the analyte sensor implantation device of Figure 1 with a protective cap removed;

[0031] Figure 6 Figure 6 is a perspective view of a protective cap of the analyte sensor implantation device of Figure 1 ;

[0032] Figure 7 Figure 7 is a perspective view of a mounting member of the analyte sensor implantation device of Figure 1 ;

[0033] Figure 8 Figure 8 is a cross-sectional view of the analyte sensor implantation device of Figure 1 from another perspective;

[0034] Figure 9 Figure 9 is a perspective view of an implantation frame and a guide needle frame of the analyte sensor implantation device of Figure 1.

[0035] Figure 1 is a perspective view of an analyte sensor implantation device according to one embodiment; Figure 2 is a cross-sectional view of the analyte sensor implantation device of Figure 1 along line A-A; Figure 3 is a cross-sectional view of the analyte sensor implantation device of Figure 1 along line A-A; Figure 4 is a cross-sectional view of the analyte sensor implantation device of Figure 1 from another perspective; Figure 5 is a perspective view of the analyte sensor implantation device of Figure 1 with a protective cap removed; Figure 6 is a perspective view of a protective cap of the analyte sensor implantation device of Figure 1 ; Figure 7 is a perspective view of a mounting member of the analyte sensor implantation device of Figure 1 ; Figure 8 is a cross-sectional view of the analyte sensor implantation device of Figure 1 from another perspective; Figure 9 is a perspective view of an implantation frame and a guide needle frame of the analyte sensor implantation device of Figure 1. Figure 1 is a perspective view of an analyte sensor implantation device according to one embodiment; Figure 2 is a cross-sectional view of the analyte sensor implantation device of Figure 1 along line A-A; Figure 3 is a cross-sectional view of the analyte sensor implantation device of Figure 1 along line A-A; Figure 4 is a cross-sectional view of the analyte sensor implantation device of Figure 1 from another perspective; Figure 5 is a perspective view of the analyte sensor implantation device of Figure 1 with a protective cap removed; Figure 6 is a perspective view of a protective cap of the analyte sensor implantation device of Figure 1 ; Figure 7 is a perspective view of a mounting member of the analyte sensor implantation device of Figure 1 ; Figure 8 is a cross-sectional view of the analyte sensor implantation device of Figure 1 from another perspective; Figure 9 is a perspective view of an implantation frame and a guide needle frame of the analyte sensor implantation device of Figure 1. ​

[0036] Regarding the bracketed reference numerals in the drawings: In the bracketed reference numerals in the drawings, the feature referred to by the reference numeral is both the feature represented by the number within the brackets and the feature represented by the number outside the brackets. DETAILED DESCRIPTION

[0037] The application will be further described below in detail with reference to the drawings. Like elements in different embodiments are denoted by like reference numerals. In the following embodiments, many details are described in order to provide a better understanding of the application. However, a person skilled in the art can easily recognize that some of the features can be omitted in different cases, or can be replaced by other elements, materials, methods. In some cases, some operations related to the application are not shown or described in the specification in order to avoid the core of the application being overwhelmed by too much description, and it is not necessary for a person skilled in the art to describe these related operations in detail according to the description in the specification and the general technical knowledge in the art.

[0038] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments. At the same time, the steps or actions in the method description can also be sequentially adjusted or adjusted in a manner that is obvious to a person skilled in the art. Therefore, the various sequences in the specification and drawings are only for the purpose of clearly describing a certain embodiment, and do not mean that the sequence is necessary, unless otherwise stated that a certain sequence must be followed.

[0039] The serial numbers of the components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. Unless otherwise specified, "connection", "coupling" in this application includes direct connection, indirect connection and contact connection (coupling) and the like.

[0040] In one embodiment, referring to Figures 1 to 5 , the analyte sensor implanting device includes a monitor 1 and a needle helper 2, the monitor 1 includes an analyte sensor 11. The monitor 1 can be an instrument for monitoring physiological parameters of the human body.

[0041] In one embodiment, referring to Figures 2 to 6 , the needle helper 2 includes a pressing shell 21, a mounting member 22, an implanting frame 23, a guide needle 26 for implanting the analyte sensor 11 into the human body, and a protective cap 29. The proximal end of the pressing shell 21 is an operation end 211 for pressing operation, and the distal end has an opening 212 for facing the human body to be implanted.

[0042] At least part of the mounting member 22 is mounted in the pressing shell 21, and the implant frame 23 is movably mounted on the mounting member 22. The guide needle 26 is arranged on the implant frame 23, so that the implant frame 23 can drive the guide needle 26 to move towards the human body for implantation.

[0043] The protective cap 29 is detachably fixed with the pressing shell 21 and covers the opening 212. The protective cap 29 and the pressing shell 21 form a protective space, and the mounting member 22, the implant frame 23 and the guide needle 26 are all in the protective space. After the protective cap 29 is separated from the pressing shell 21, pressing the pressing shell 21 can make the pressing shell 21 move relative to the implant frame 23 to trigger the needle helper 2 to drive the implant frame 23 to move the guide needle 26 towards the human body for implantation.

[0044] The pressing shell 21 and the mounting member 22 are stopper matched in the extension direction of the guide needle 26 to prevent the mounting member 22 from moving towards the human body for implantation relative to the pressing shell 21. The protective cap 29 and the mounting member 22 are stopper matched in the extension direction of the guide needle 26 to prevent the mounting member 22 from moving away from the human body for implantation relative to the protective cap 29.

[0045] Since the pressing shell 21 and the protective cap 29 of the needle helper 2 are fixed, the pressing shell 21 and the protective cap 29 will not move relative to each other. In the protective space formed by the pressing shell 21 and the protective cap 29, the pressing shell 21 and the mounting member 22 are stopper matched to prevent the mounting member 22 from moving towards the human body for implantation relative to the pressing shell 21. The protective cap 29 and the mounting member 22 are stopper matched to prevent the mounting member 22 from moving away from the human body for implantation. In this way, the mounting member 22, the pressing shell 21 and the protective cap 29 will not move relative to each other, and the needle helper 2 is not easy to be triggered by mistake, which improves the problem that the pressing shell 21 and the mounting member 22 of the current analyte sensor implantation device are easy to move relative to each other during transportation, causing the needle helper 2 to be easily triggered by mistake.

[0046] In one embodiment, please refer to Figures 1 to 6 When the protective cap 29 is mounted, the protective cap 29 is fixed with the pressing shell 21 after being rotated relative to the pressing shell 21 by a set angle. When the protective cap 29 needs to be dismounted, the protective cap 29 and the pressing shell 21 are rotated relative to each other in the opposite direction, so that the protective cap 29 can be dismounted. Compared with the plug-in fixing mode, the mode of fixing after rotating by a set angle can make the protective cap 29 and the pressing shell 21 more difficult to be separated. In some other embodiments, the protective cap 29 can also be fixed with the pressing shell 21 after being plugged in.

[0047] In one embodiment, please refer to Figure 3 , Figure 5 and Figure 6 The protective cap 29 is clamped and fixed with the pressing shell 21. The protective cap 29 is clamped in place after being rotated relative to the pressing shell 21 by a set angle. In some other embodiments, the protective cap 29 and the pressing shell 21 can also be fixed by threads, and can also be fixed by magnetic attraction.

[0048] Specifically, in one embodiment, referring to Figure 3 , Figure 5 and Figure 6 , the side wall of the pressing shell 21 has a clamping groove 216, the protective cap 29 has a clamping structure 291 clamped into the clamping groove 216, the clamping structure 291 is stopped by the groove wall of the clamping groove 216 in the extension direction of the guide needle 26, so as to prevent the protective cap 29 from moving relative to the pressing shell 21 in the extension direction of the guide needle 26. The pressing shell 21 comprises a clamping elastic arm 217 extending along the circumference of the pressing shell 21, and the free end of the clamping elastic arm 217 is provided with an elastic arm protrusion 218 forming part of the groove wall of the clamping groove 216. During clamping of the clamping structure 291 into the clamping groove 216, the free end of the clamping elastic arm 217 is deformed towards the inside of the pressing shell 21, so that the clamping structure 291 enters the clamping groove 216.

[0049] In one embodiment, referring to Figure 3 , Figure 5 and Figure 6 , the clamping structure 291 is a clamping protrusion. In one embodiment, referring to Figure 3 , Figure 5 and Figure 6 , the clamping protrusion has a protrusion groove 293. During installation of the protective cap 29, the elastic arm protrusion 218 of the clamping elastic arm 217 can enter the protrusion groove 293.

[0050] In some other embodiments, a clamping groove can be provided on the protective cap, and a clamping protrusion can be provided on the pressing shell.

[0051] In some other embodiments, the protective cap 29 and the mounting member 22 are in stopper cooperation in the extension direction of the guide needle 26, so as to prevent the mounting member 22 from moving relative to the protective cap 29 in the direction away from the body, and also prevent the mounting member 22 from moving relative to the protective cap 29 in the direction towards the body.

[0052] Regarding the stopper mode of the mounting member 22 and the protective cap 29, in one embodiment, referring to Figure 4 and Figure 7 , the inner wall of the protective cap 29 has a cap stopper 292, and the mounting member 22 has a mounting member stopper 222, the cap stopper 292 and the mounting member stopper 222 are in stopper cooperation in the extension direction of the guide needle 26.

[0053] Specifically, in one embodiment, referring to Figure 4 and Figure 7In some other embodiments, the protective cap 29 can also extend into the pressing shell 21 and stop against the mounting member 22. In some other embodiments, the protective cap 29 and the mounting member 22 can also adopt a similar cooperation manner as that between the protective cap 29 and the pressing shell 21, such as a buckle is arranged on the mounting member 22 and a clamping groove 216 that is adapted to the buckle is arranged on the protective cap 29.

[0054] In one embodiment, please refer to Figure 2 and Figure 7 , the distal end of the pressing shell 21 is provided with a pressing shell distal end stopper 219, and the distal end of the mounting member 22 is provided with a mounting member distal end stopper 223, the pressing shell distal end stopper 219 and the mounting member distal end stopper 223 stop and cooperate in the extension direction of the guide needle 26 to prevent the mounting member 22 from moving relative to the pressing shell 21 in the direction of implanting into the human body.

[0055] In order to further improve the anti-misoperation effect of the needle helper 2, in one embodiment, please refer to Figure 2 , Figure 4 , Figure 8 and Figure 9 , the needle helper 2 comprises an implanting elastic member 24 for applying an elastic force to the implanting frame 23. The implanting elastic member 24 is used to apply an elastic force to the implanting frame 23 to make the implanting frame 23 move towards the distal end.

[0056] The implanting frame 23 comprises a locking structure 231 for locking the mounting member 22 and the implanting frame 23. Before the analyte sensor implanting device is used, the relative position of the implanting frame 23 and the mounting member 22 is locked and cannot move relative to each other. When it is needed to implant the analyte sensor 11 into the human body, the locking structure 231 needs to be unlocked. The pressing shell 21 has an unlocking portion 213 for unlocking the locking effect of the locking structure 231. The unlocking portion 213 is used to contact the locking structure 231 to unlock the locking effect of the locking structure 231 on the implanting frame 23, so that the implanting frame 23 moves towards the distal end under the elastic force of the implanting elastic member 24, that is, moves towards the human body relative to the mounting member 22.

[0057] The needle helper also comprises an unlocking shell retaining structure 27 for applying a retaining force to the pressing shell 21 to retain the position of the pressing shell 21. In one embodiment, please refer to Figure 2 , Figure 4 , Figure 8 and Figure 9 , the unlocking shell retaining structure 27 is on the implanting frame 23. In some other embodiments, the unlocking shell retaining structure 27 can also be on the mounting member 22, and in some other embodiments, the number of the unlocking shell retaining structure 27 can be more than two, part of which is on the mounting member 22 and part of which is on the implanting frame 23.

[0058] The pressing shell 21 has a holding release structure 214 which is in contact with the unlocking shell holding structure 27 after the pressing shell 21 is pressed, so as to release the holding effect of the unlocking shell holding structure 27 on the pressing shell 21 to overcome the holding force, and enable the unlocking part 213 to unlock the locking structure 231. The size of the holding force is selected in a reasonable range according to the pressing force of the pressing shell 21. The unlocking shell holding structure 27 releases the holding of the pressing shell 21 after the pressing shell 21 is pressed and the holding force is overcome, which can prevent accidental touch.

[0059] It should be noted that the distal end and the proximal end in the present application are described based on the position of the operator, wherein the proximal end is the end close to the hand of the operator, and the distal end is the end away from the hand of the operator.

[0060] It should be noted that the guide needle 26 can be directly assembled on the implanting frame 23, or can be assembled on the implanting frame 23 through other parts. For example, in one embodiment, please refer to Figure 2 、 Figure 4 、 Figure 8 and Figure 9 The needle assisting device 2 includes a guide needle frame 25, the guide needle 26 is installed on the guide needle frame 25, and the guide needle frame 25 is installed on the implanting frame 23. When the implanting frame 23 moves to the distal end under the action of the implanting elastic member 24, the guide needle frame 25 also moves to the distal end. The guide needle 26 is assembled on the guide needle frame 25 and is used for implanting the analyte sensor 11 of the monitoring instrument 1 into the human body.

[0061] The anti-misoperation function is realized by the unlocking shell holding structure, without the need for the user to disassemble the anti-misoperation part, which is more convenient for the user to use. The pressing shell 21 of the needle assisting device serves as a key, without the need for separately increasing a key part, which reduces the manufacturing cost, and at the same time, the area of the pressing shell 21 is larger than that of a separate key, which is more convenient for the user to use.

[0062] In one embodiment, please refer to Figure 2 、 Figure 4 、 Figure 8 and Figure 9 The implanting frame 23 is a monitoring instrument frame for installing the monitoring instrument 1. In some other embodiments, the monitoring instrument can also be installed on the installing member.

[0063] In one embodiment, the unlocking shell holding structure 27 is on the implanting frame 23. In one embodiment, please refer to Figure 2 The unlocking shell holding structure 27 is on the proximal end of the implanting frame 23. In this way, the unlocking shell holding structure 27 and the pressing shell 21 can interact with each other. In some other embodiments, the unlocking shell holding structure 27 can also be arranged at the distal end of the pressing shell 21.

[0064] Specifically, in one embodiment, referring to Figures 8 to 9 , the unlocking shell holding structure 27 comprises a holding arm 271, the holding arm 271 extends from the distal end of the implant holder 23 to the proximal end, the holding arm 271 holds the position of the pressing shell 21 by abutting against the pressing shell 21. In some other embodiments, the holding arm 271 extends from the distal end of the implant holder 23 to the proximal end.

[0065] In some other embodiments, the unlocking shell holding structure 27 can also use a spring sheet in addition to the holding arm 271.

[0066] Further, in one embodiment, referring to Figure 2 , Figure 8 and Figure 9 , the holding release structure 214 comprises a holding release arm 215, the holding release arm 215 is located in the pressing shell 21, the holding release arm 215 extends from the proximal end of the pressing shell 21 to the distal end of the pressing shell 21, the distal end of the holding release arm 215 abuts against the proximal end of the holding arm 271, at least one of the holding arm 271 and the holding release arm 215 is a spring arm, the distal end of the holding release arm 215 and the proximal end of the holding arm 271 both have abutting slopes, the abutting slope of the distal end of the holding release arm 215 is a holding release arm slope 2151, the abutting slope of the proximal end of the holding arm 271 is a holding arm slope 2711, the holding release arm slope 2151 and the holding arm slope 2711 are both used to guide the deformation of the spring arm after the pressing shell 21 is pressed, release the abutting relationship between the holding release arm 215 and the holding arm 271, thereby releasing the holding effect of the unlocking shell holding structure 27. In one embodiment, referring to Figure 8 and Figure 9 , the holding arm 271 is a spring arm, and the holding release arm 215 is a rigid arm. In some other embodiments, the holding arm 271 is a rigid arm, and the holding release arm 215 is a spring arm. In some other embodiments, the holding arm 271 and the holding release arm 215 are both spring arms.

[0067] In some other embodiments, only the distal end of the holding release arm 215 can have the holding release arm slope 2151, and the proximal end of the holding arm 271 can have a flat surface in contact with the holding release arm slope 2151, the flat surface is perpendicular to the direction of movement of the implant holder 23. In some other embodiments, only the proximal end of the holding arm 271 can have the holding arm slope 2711. It should be noted that the slope in the present application refers to a surface with a certain slope in the direction of movement of the implant holder 23, which can be an inclined surface, a convex surface, or a concave surface.

[0068] In one embodiment, referring to Figures 8 to 9In order to improve the effect of preventing mistaken touch, the holding arm 271 comprises an inclined section 2712, which is used to abut against the holding release arm 215. One end of the inclined section 2712 is a holding arm slope surface 2711. In the direction from the distal end to the proximal end of the holding arm 271, the inclined section 2712 gradually inclines to the distal end of the holding release arm 215. Thus, when the pressing shell 21 is pressed to make the holding release arm 215 abut against the holding arm slope surface 2711 on the inclined section 2712, a greater force is required to make the holding arm 271 elastically deform, and then the holding effect of the holding arm 271 on the pressing shell 21 is released.

[0069] In one embodiment, referring to Figure 2 , Figure 8 and Figure 9 , in order to facilitate the release of the locking of the implant frame 23, the minimum force required by the holding release structure 214 to release the holding effect of the unlocking shell holding structure 27 on the pressing shell 21 is the first force, and the minimum force required by the unlocking part 213 to release the locking effect of the locking structure 231 on the implant frame 23 is the second force. The first force is greater than the second force. In this way, the effect of preventing mistaken touch can be improved, and the implant frame 23 can be more smoothly unlocked, and the overall operation is more smooth.

[0070] In some other embodiments, according to actual needs, the first force can also be less than or equal to the second force.

[0071] In one embodiment, referring to Figure 2 , Figure 8 and Figure 9 , the number of the unlocking shell holding structure 27 is at least two, the number of the holding release structure 214 is at least two, and the number of the unlocking part 213 is at least two. The holding release structure 214 and the unlocking part 213 are arranged alternately in the circumferential direction of the pressing shell 21. Specifically, in one embodiment, the number of the holding release arm 215 is two or more, the unlocking part 213 is an unlocking arm 2131, the unlocking arm 2131 extends from the proximal end of the pressing shell 21 to the distal end of the pressing shell 21, the number of the unlocking arm 2131 is two or more, and the unlocking arm 2131 and the holding release arm 215 are arranged alternately in the circumferential direction of the pressing shell 21.

[0072] Further, in one embodiment, referring to Figure 2 , Figure 8 and Figure 9 , the unlocking arm 2131 extends from the proximal end of the pressing shell 21 to the distal end of the pressing shell 21, the unlocking arm 2131 releases the locking by abutting against the locking structure 231, and the length of the unlocking arm 2131 is not less than the length of the holding release arm 215. In this way, after the abutting relationship between the holding release arm 215 and the holding arm 271 is released, the unlocking arm 2131 releases the locking of the locking structure 231.

[0073] Further, in an embodiment, please refer to Figure 2 , Figure 8 and Figure 9 , the locking structure 231 is used to lock the mounting member 22 and the implant frame 23. In an embodiment, please refer to Figure 2 , Figure 8 and Figure 9 , the locking structure 231 comprises a locking arm 2311, the locking arm 2311 extends from the distal end of the implant frame 23 to the proximal end, and the proximal end of the locking arm 2311 is provided with a clasp 2312. The clasp 2312 is clamped on the mounting member 22 to achieve the locking of the implant frame 23 and the mounting member 22. The unlocking portion 213 deforms the locking arm 2311 by abutting against the clasp 2312 to achieve the separation of the clasp 2312 and the mounting member 22.

[0074] Specifically, in an embodiment, please refer to Figure 2 , Figure 8 and Figure 9 , the locking arm 2311 is on the implant frame 23.

[0075] In an embodiment, please refer to Figure 2 , Figure 7 and Figure 2 , in order to facilitate the unlocking of the clasp 2312, the clasp 2312 is provided with a clasp slope surface 2313, and the end of the unlocking arm 2131 is provided with an unlocking arm slope surface. Through the cooperation of the unlocking arm slope surface and the clasp slope surface 2313, the clasp 2312 can be subjected to a force to separate the clasp 2312 and the mounting member 22.

[0076] Further, in an embodiment, please refer to Figure 4 and Figure 2 , the mounting member 22 is sleeve-shaped, the implant frame 23 is installed in the mounting member 22, and the mounting member 22 can guide the implant frame 23 to move linearly. In this way, the rotation of the implant frame 23 can be prevented, and the movement of the implant frame 23 is smoother.

[0077] Further, in an embodiment, please refer to Figure 4 and Figure 2 , the implant elastic member 24 is a spring, and the implant elastic member 24 is clamped between the implant frame 23 and the mounting member 22. After the locking of the implant frame 23 and the mounting member 22 is released, under the action of the spring, the implant frame 23 moves towards the human body, driving the guide needle frame 25 and the guide needle 26 to pierce the human skin, and then the analysis sensor is implanted into the human body under the action of the guide needle 26. The spring is clamped between the implant frame 23 and the mounting member 22 and is in a compressed state.

[0078] In an embodiment, the guide needle frame 25 and the monitor 1 can adopt any feasible structure form in the prior art. Please refer to Figure 2 and Figure 8The needle-retracting elastic member 28 is arranged between the implanting frame 23 and the guide needle frame 25. After the analyte sensor 11 is implanted into the human body, the guide needle frame 25 and the implanting frame 23 can move relative to each other. Under the action of the needle-retracting elastic member 28, the guide needle 26 is retracted from the human body. The part of the monitor 1 that contacts the human body is provided with an adhesive sheet 12. Under the action of the adhesive sheet 12, the monitor 1 is separated from the implanting frame 23, and the monitor 1 remains on the surface of the human skin. After the implanting of the analyte sensor 11 is completed, the needle-aiding device 2 is removed by pressing the shell 21, and the monitor 1 adhered to the surface of the human body can monitor the parameters of the human body in real time.

[0079] In one embodiment, please refer to Figure 9 The monitor 1 and the analyte sensor 11 are both arranged in the needle-aiding device 2.

[0080] In one embodiment, please refer to Figures 2 to 4 , Figure 8 and Figure 9 The implanting frame 23 further comprises a blocking structure 232. The blocking structure 232 blocks the guide needle frame 25 in the direction away from the human body, so that the implanting frame 23 can drive the guide needle frame 25 to move in the direction close to the human body when the implanting frame 23 moves to the implanting position, and further drive the guide needle to move in the direction of penetrating into the human body.

[0081] The mounting member 22 further comprises a releasing structure 221. When the implanting frame 23 moves to the implanting position and the guide needle 26 implants the analyte sensor 11 into the human body, the releasing structure 221 applies a force to the blocking structure 232 to release the blocking of the guide needle frame 25 by the blocking structure 232.

[0082] The needle-retracting elastic member 28 is arranged between the implanting frame 23 and the guide needle frame 25. After the analyte sensor 11 is implanted into the human body, the guide needle frame 25 and the implanting frame 23 can move relative to each other. Under the action of the needle-retracting elastic member 28, the guide needle 26 is retracted from the human body. The part of the monitor 1 that contacts the human body is provided with an adhesive sheet 12. Under the action of the adhesive sheet 12, the monitor 1 is separated from the implanting frame 23, and the monitor 1 remains on the surface of the human skin. After the implanting of the analyte sensor 11 is completed, the needle-aiding device 2 is removed by pressing the shell 21, and the monitor 1 adhered to the surface of the human body can monitor the parameters of the human body in real time.

[0083] In one embodiment, please refer to Figure 8 The needle-retracting elastic member 28 is arranged between the implanting frame 23 and the guide needle frame 25. After the analyte sensor 11 is implanted into the human body, the guide needle frame 25 and the implanting frame 23 can move relative to each other. Under the action of the needle-retracting elastic member 28, the guide needle 26 is retracted from the human body. The part of the monitor 1 that contacts the human body is provided with an adhesive sheet 12. Under the action of the adhesive sheet 12, the monitor 1 is separated from the implanting frame 23, and the monitor 1 remains on the surface of the human skin. After the implanting of the analyte sensor 11 is completed, the needle-aiding device 2 is removed by pressing the shell 21, and the monitor 1 adhered to the surface of the human body can monitor the parameters of the human body in real time.

[0084] As to the form of the blocking structure 232, in one embodiment, please refer to Figures 1 to 9 and ​ The retaining arm 271 forms at least part of the blocking structure 232. The blocking structure 232 comprises a blocking part 2321 on the retaining arm 271, which is used to block the guide needle frame 25.

[0085] In one embodiment, please refer to​ The releasing structure 221 includes a releasing protrusion 2211 on the mounting member 22, the releasing protrusion 2211 has a protrusion slope 2212 for cooperating with the holding arm 271 to elastically deform the holding arm 271 away from the releasing protrusion 2211.

[0086] In one embodiment, referring to ​ The implanting process of the analyte sensor implanting device is as follows:

[0087] When the analyte sensor 11 needs to be implanted into a human body, the protective cap 29 of the analyte sensor implanting device is opened, the sensor cap 210 is removed, the opening 212 of the pressing shell 21 is directed to the position of the human body where the sensor needs to be implanted, the operating end 211 of the pressing shell 21 is pressed, the holding releasing structure 214 of the pressing shell 21 is in contact with the unlocking shell holding structure 27, the holding force of the unlocking shell holding structure 27 on the pressing shell 21 is overcome, the holding force of the unlocking shell holding structure 27 on the pressing shell 21 is released, and the unlocking part 213 can unlock the locking structure 231. After the implanting frame 23 is unlocked, it moves towards the human body under the action of the implanting elastic member 24, drives the guide needle frame 25 and the guide needle 26 to move, and makes the guide needle 26 implant the analyte sensor 11 into the human body. After the analyte sensor 11 is implanted into the human body, the guide needle frame 25 can move relative to the implanting frame 23, the guide needle 26 is extracted from the human body under the action of the needle returning elastic member 28. After the implanting of the analyte sensor 11 is completed, the needle helper 2 is removed by operating the pressing shell 21, the monitor 1 is separated from the implanting frame 23 under the action of the adhesive sheet 12, and the monitor 1 is adhered to the surface of the human body to monitor the parameters of the human body in real time.

[0088] In one embodiment of the needle helper, the structure of the needle helper is the same as that of any one of the above embodiments, and will not be repeated here.

[0089] The above application uses specific examples to illustrate the present application, which is only used to help understand the present application and does not limit the present application. For those skilled in the art to which the present application belongs, according to the idea of the present application, a number of simple deductions, deformations or substitutions can be made.

Claims

1. A needle aid, characterized in that The application relates to a needle implanting device, which comprises: a pressing shell, the proximal end of the pressing shell being an operation end for pressing operation, the distal end of the pressing shell being provided with an opening for implanting into a human body; a mounting member, at least a part of the mounting member being mounted in the pressing shell; an implanting frame, the implanting frame being movably mounted on the mounting member; a guide needle, the guide needle being used for implanting an analyte sensor into a human body, the guide needle being arranged on the implanting frame; and a protective cap, the protective cap being detachably fixed with the pressing shell and covering the opening, the protective cap and the pressing shell surrounding a protective space, the mounting member, the implanting frame and the guide needle being in the protective space, the pressing shell being pressed after the protective cap is separated from the pressing shell, the pressing shell being moved relative to the implanting frame to trigger the needle helper to drive the implanting frame and the guide needle to move towards the human body, the pressing shell and the mounting member being stop-fitted in the extension direction of the guide needle to prevent the mounting member from moving towards the human body relative to the pressing shell, and the protective cap and the mounting member being stop-fitted in the extension direction of the guide needle to prevent the mounting member from moving away from the human body relative to the protective cap.

2. The needle guide of claim 1, wherein The protective cap is fixed with the pressing shell after being rotated relative to the pressing shell.

3. The needle guide of claim 2, wherein The protective cap is clamped and fixed with the pressing shell, and the protective cap is clamped in place after being rotated relative to the pressing shell.

4. The needle guide of claim 3, wherein The side wall of the pressing shell is provided with a clamping groove, the protective cap is provided with a clamping structure clamped in the clamping groove, the clamping structure and the groove wall of the clamping groove are stop-fitted in the extension direction of the guide needle to prevent the protective cap from moving in the extension direction of the guide needle relative to the pressing shell, the pressing shell comprises a clamping elastic arm, the clamping elastic arm extends along the circumference of the pressing shell, the free end of the clamping elastic arm is provided with an elastic arm protrusion, the elastic arm protrusion forms part of the groove wall of the clamping groove, and the free end of the clamping elastic arm is deformed towards the inside of the pressing shell in the process that the clamping structure is clamped into the clamping groove, so that the clamping structure enters the clamping groove.

5. A needle guide according to any one of claims 1 to 4, wherein The inner wall of the protective cap is provided with a cap stop block, the mounting member is provided with a mounting member stop block, and the cap stop block and the mounting member stop block are stop-fitted in the extension direction of the guide needle.

6. The needle guide of claim 5, wherein the needle guide is configured to be worn on the user's hand such that the needle guide is positioned between the user's hand and the injection site. The mounting member comprises an extension part extending out of the pressing shell, and the mounting member stop block is located on the extension part.

7. A needle guide according to any one of claims 1 to 4, wherein The implanting frame comprises a locking structure for locking the mounting member and the implanting frame. The needle helper further comprises an implanting elastic member and an unlocking shell retaining structure, the implanting elastic member is used for applying elastic force to the implanting frame, and the unlocking shell retaining structure is located on the implanting frame and / or the mounting member, and is used for applying retaining force to the pressing shell to retain the position of the pressing shell. The pressing shell is provided with an unlocking part, the unlocking part is used for contacting the locking structure to release the locking effect on the implanting frame, and the implanting frame moves towards the distal end under the elastic force of the implanting elastic member. The press shell has a hold release structure which, after the press shell is pressed, is in contact with the unlock shell holding structure to overcome the holding force to release the holding of the press shell by the unlock shell holding structure, so that the unlocking portion can unlock the locking structure.

8. The needle guide of claim 7, wherein the needle guide is configured to be worn on the user's hand such that the needle guide is positioned between the user's hand and the injection site. The unlock shell holding structure is at the proximal end of the implant frame, and the unlock shell holding structure includes a holding arm which extends from the distal end to the proximal end of the implant frame, and the holding arm holds the position of the press shell by abutting against the press shell.

9. The needle guide of claim 8, wherein the needle guide is configured to be worn on the user's hand such that the needle guide is positioned between the user's hand and the injection site. The hold release structure includes a hold release arm which is in the press shell, and the hold release arm extends from the proximal end to the distal end of the press shell, and the distal end of the hold release arm abuts against the proximal end of the holding arm, and at least one of the holding arm and the hold release arm is a spring arm, and the distal end of the hold release arm and / or the proximal end of the holding arm has an abutting slope surface to enable the holding arm and / or the hold release arm to be deformed after the press shell is pressed, and the abutting relationship between the holding release arm and the holding arm is released.

10. An analyte sensor implantation device, comprising: The device includes a monitor and a needle helper as claimed in any one of claims 1-9, and the monitor includes an analyte sensor.

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