Safety self-locking needle helper

Abstract

The application discloses a safe self-locking needle helper, which comprises a shell module, a firing module for clamping or releasing a guide needle, a transmitter module comprising at least a transmitter shell and a sensor, at least part of the sensor being located in the guide needle, a trigger module comprising at least a trigger button, a trigger piston matched with the firing module and a trigger lever capable of driving the trigger piston to move up and down under the drive of the trigger button, and a locking module comprising at least a locking button and a locking turn buckle matched with the trigger module and used for locking or unlocking the trigger module. When the locking module unlocks the trigger module, the trigger button can be operated to trigger the firing module. The application reduces the misoperation and improves the effective use of the needle helper through the locking module and the trigger module.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, in particular to a safe self-locking needle helper. BACKGROUND

[0002] A dynamic blood glucose monitoring device appears in the market, which is connected with a probe head similar to a needle. The probe head is gently placed into subcutaneous tissue of the abdomen. The probe head has a very small diameter, and the patient has no obvious pain and discomfort when it is placed. The instrument receives an electrical signal reflecting the change of blood glucose from the probe head at a certain interval, converts the average value of the collected electrical signals into a blood glucose value and stores it. The instrument can record several hundred blood glucose values every day, so that the patient does not need to endure the pain of needle insertion every day, and it can provide daily blood glucose graph, multi-day blood glucose graph and other blood glucose data, which is a new breakthrough in blood glucose detection.

[0003] Generally, a needle helper is needed to implant a sensor of a blood glucose detection device under the skin. The needle helper generally has an implant needle, and the implant operation of the implant needle can implant the implant needle together with the sensor under the skin. The needle withdrawal operation of the implant needle can quickly withdraw the implant needle from the human skin, so that the sensor is left under the skin. Therefore, a needle helper is needed to quickly and stably implement the implant operation and the needle withdrawal operation of the implant needle.

[0004] In addition, the blood glucose detection device is generally a disposable medical device, and after each use cycle, the components of the blood glucose detection device including the sensor and the transmitter need to be discarded. Therefore, the problem of reusing the components of the blood glucose detection device needs to be solved to reduce the use cost and save resources.

[0005] At the same time, during the transportation of the blood glucose detection device, the blood glucose detection device may be misoperated due to the bad transportation environment, and the blood glucose detection device may be started due to that the user just opens the blood glucose detection device and does not place it in a suitable position. Therefore, a high-efficiency, stable and self-locking needle helper is needed to reduce unnecessary waste of the blood glucose detection device. SUMMARY

[0006] In order to overcome the shortcomings of the prior art, the present application provides a safe self-locking needle helper which reduces misoperation during transportation and improves effective use of the needle helper.

[0007] The technical scheme adopted by the present application to solve its technical problems is: a safe self-locking needle helper, comprising:

[0008] a shell module;

[0009] a firing module for clamping or releasing the guide needle;

[0010] The transmitter module comprises at least a transmitter housing and a sensor passing through the transmitter housing, at least a part of the sensor being located in the guide needle;

[0011] The trigger module comprises at least a trigger button, a trigger piston cooperating with the firing module, and a trigger lever which can drive the trigger piston to move up and down under the drive of the trigger button;

[0012] The locking module comprises at least a locking button and a locking catch cooperating with the trigger module to lock or unlock the trigger module.

[0013] When the locking module unlocks the trigger module, the trigger button can be operated to trigger the firing module.

[0014] The present application can unlock the trigger module only when both the locking module and the trigger module are operated, and the trigger module cannot be started when the locking module is not triggered, so that the reset module cannot effectively move, thereby effectively avoiding the misoperation of the blood glucose detection device and ensuring the effective use thereof.

[0015] Further, the reset module comprises a reset button and a reset elastic member; the trigger button and the locking button are oppositely directed, and the reset module can move up and down when the locking button is pressed downward and the trigger button is pressed upward, or when the locking button is pressed upward and the trigger button is pressed downward. The setting of the reset module realizes the repeated use of the needle helper, reduces the waste and pollution of the medical device, and improves the resource utilization rate; the trigger direction of the trigger button and the locking button is opposite, which facilitates the operation with one hand and makes the use more convenient.

[0016] Further, the trigger module further comprises a trigger elastic member, one end of which abuts against the trigger lever and the other end of which abuts against the shell module; the trigger lever comprises a movement output end, a lever positioning shaft hole, a lever positioning shaft head, a lever end face, and a trigger lever locking end face, the movement output end extends into the trigger piston, the lever positioning shaft hole is connected with the firing module in rotation, the lever positioning shaft head cooperates with the trigger elastic member, the lever end face abuts against the trigger button, and the trigger lever locking end face cooperates with the locking catch. The structure of the trigger module is reasonable, the cooperation with the locking module is simple and effective, and the operation is convenient and labor-saving.

[0017] Further, the trigger piston comprises a trigger piston positioning shaft head cooperating with the reset elastic member, a locking concave platform in high contact with the movement output end, a piston cylindrical surface cooperating with the firing module, a profiled slot cooperating with the reset button in rotation, a locking shaft head, and a limiting end face, the locking shaft head and the limiting end face can cooperate with the firing module to realize the contact and disconnection thereof.

[0018] Further, the locking module further comprises a locking elastic member, one end of which is in abutment with the locking button, and the other end is in abutment with the shell module; the locking button is provided with a locking button tooth, a locking recess, a locking button limiting boss, a locking button positioning shaft head, and a locking button pressing end face, the locking button tooth is engaged with the locking rotating buckle tooth, the locking recess is used for limiting the locking elastic member and transmitting the force of the locking elastic member to the locking button, the locking button limiting boss is used for limiting the locking button and the shell module, and the locking button positioning shaft head is used for the axial positioning of the locking button.

[0019] Further, the locking rotating buckle further comprises a locking rotating buckle positioning shaft head and a locking rotating buckle end face, the locking rotating buckle positioning shaft head is rotationally connected with the shell module, and the locking rotating buckle end face has two states of contact and disconnection with the trigger lever locking end face.

[0020] Further, the firing module comprises an inner shell, a needle pulling member, a needle pulling spring, and a firing shell; the inner shell comprises a positioning shaft hole, a charging module wiring serial port, an inner shell elastic contact piece connected with the charging module wiring serial port, a transition taper, a transition wire, an upper and lower sliding groove, a bottom edge notch, and a limiting window, and the positioning shaft hole is rotationally connected with the lever positioning shaft hole; the needle pulling member comprises a plug-in hole, a needle pulling member buckle, and a needle pulling member elastic piece in the needle pulling member buckle, and the needle pulling member elastic piece is used for clamping or releasing the guide needle.

[0021] Further, the firing shell comprises a firing shell inner clamping jaw and a firing shell outer clamping jaw, the firing shell outer clamping jaw is provided with a firing shell outer clamping jaw back face and a firing shell outer clamping jaw inclined face, the transition taper and the firing shell outer clamping jaw inclined face have two states of contact and disconnection, thereby limiting and fixing the firing shell outer clamping jaw, and the firing shell outer clamping jaw back face can have two states of contact and disconnection with the locking shaft head.

[0022] Further, the transmitter shell comprises a transmitter shell elastic contact piece, a needle passing channel, and a battery insertion slot, in the "charging mode" state, the transmitter shell elastic contact piece is in contact with the battery metal piece in the transmitter battery, the needle passing channel is used for guiding the guide needle to pass through, and the battery insertion slot is a T-shaped sliding groove which is limitedly matched with the battery convex edge of the transmitter battery.

[0023] Further, it further comprises a charging module, which comprises a charging socket, a power transformer, a wire, and a wire connector, the charging socket can be connected with the internal metal contact of the charging base, the power transformer is used for reducing the voltage of the external power supply, and the wire connector is connected with the charging module wiring serial port.

[0024] Further, the shell module comprises a shell with a battery plug-in port, a reset port, a trigger positioning shaft hole, a locking positioning recess, a trigger positioning recess, a shell limiting recess, a locking positioning shaft hole, a power transformer positioning structure, a positioning upper ring, a positioning lower ring, a charging positioning structure and a trigger port. The trigger positioning recess is matched with a trigger elastic piece. The reset button passes through the reset port into the shell. The trigger positioning shaft hole is used for rotatingly connecting the locking turnbuckle. The locking positioning recess is matched with a locking elastic piece. The shell limiting recess is matched with a locking button limiting boss to form limiting of the locking button. The locking positioning shaft hole is rotatably connected with the locking button. The positioning upper ring and the positioning lower ring are used for positioning the firing module.

[0025] The application has the advantages that the locking module and the trigger module reduce the misoperation in the transportation process and human operation, improve the effective use of the needle helper, the reset module can realize the repeated use of the needle helper by adding a new emitter module installation package, reduces the waste and pollution of the medical device, and improves the resource utilization rate, the charging module can charge the emitter battery, prolongs the service life of the emitter module, saves resources, the emitter battery and the emitter module are separately arranged, which saves the power waste of the emitter before use, if the battery is found to be scrapped due to an irresistible factor before use, the standby battery can be immediately replaced, and the resource is saved, the emitter is implanted first, and then the power supply is connected, which can increase the adaptability of the implanted sensor in the human body and reduce the detection of invalid data. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the charging state of the application.

[0027] Figure 2 It is a schematic diagram of the appearance structure of the application.

[0028] Figure 3 It is a schematic diagram of the internal structure of the application.

[0029] Figure 4 It is an exploded view of the application, which describes the module decomposition and assembly sequence.

[0030] Figure 5 It is Figure 4 It is a schematic diagram of the appearance of the shell module.

[0031] Figure 6 It is Figure 5 It is a schematic diagram of the cross-sectional structure of the shell module.

[0032] Figure 7 It is Figure 4 It is a schematic diagram of the structure of the reset button.

[0033] Figure 8 for Figure 7 AA section view in the image.

[0034] Figure 9-1 for Figure 4 Schematic diagram of the trigger button Figure 1 .

[0035] Figure 9-2 for Figure 4 Schematic diagram of the trigger button Figure 2 .

[0036] Figure 10 for Figure 4 A schematic diagram of the trigger lever structure.

[0037] Figure 11-1 for Figure 4 Schematic diagram of the trigger piston structure Figure 1 .

[0038] Figure 11-2 for Figure 4 Schematic diagram of the trigger piston structure Figure 2 .

[0039] Figure 12 for Figure 4 A schematic diagram of the locking button.

[0040] Figure 13 for Figure 4 A schematic diagram of the locking turnbuckle structure.

[0041] Figure 14 for Figure 4 A schematic diagram of the inner shell structure.

[0042] Figure 15 for Figure 4 A schematic diagram of the cross-sectional structure of the inner shell.

[0043] Figure 16-1 for Figure 4 Schematic diagram of the middle needle puller Figure 1 .

[0044] Figure 16-2 for Figure 4 Schematic diagram of the middle needle puller Figure 2 .

[0045] Figure 17 for Figure 4 A schematic diagram of the firing casing.

[0046] Figure 18 for Figure 4 A three-dimensional cross-sectional view of the firing casing.

[0047] Figure 19 for Figure 4Structure diagram of the transmitter housing.

[0048] Figure 20 For Figure 4 Structure diagram of the transmitter housing.

[0049] Figure 21 For Figure 4 Structure diagram of the transmitter housing with the insertion sensor and guide needle.

[0050] Figure 22 Structure diagram of the transmitter battery.

[0051] Figure 23 Structure diagram of the charging module.

[0052] Figure 24 Structure diagram of the needle-aid after firing.

[0053] Figure 25 Structure diagram of the associated parts after the locking button is pressed.

[0054] Figure 26 Structure diagram of the associated parts after the locking button is pressed and the trigger button is pressed.

[0055] Figure 27 Structure diagram of the firing device parts when the firing device is activated.

[0056] Figure 28 Structure diagram of the firing device parts during the activation of the firing device.

[0057] Figure 29 Structure diagram of the firing device parts after the activation of the firing device.

[0058] Figure 30 Structure diagram of the transmitter module implanted in the skin.

[0059] Figure 31 Structure diagram of the charging battery inserted into the battery slot.

[0060] Figure 32 Structure diagram of the reset device when the reset button is pressed.

[0061] Figure 33 Structure diagram of the guide needle after the reset button is pressed.

[0062] Figure 34 Structure diagram of the inside of the spare transmitter assembly package.

[0063] Figure 35 Structure diagram of the spare transmitter assembly just before installation.

[0064] Figure 36 Structure diagram for installing the spare transmitter assembly.

[0065] Figure 37 Structure diagram for installing the spare transmitter assembly.

[0066] Figure 38 Structure diagram for removing the transmitter assembly placement slot of the spare transmitter assembly.

[0067] Figure 39 Structure diagram for screwing the needle helper locking cover.

[0068] Figure 40 Structure diagram for inserting the transmitter battery into the needle helper. DETAILED DESCRIPTION

[0069] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0070] REFERENCE Figure 1-4 A safe self-locking needle helper includes a shell module 000, a reset module 100, a trigger module 200, a locking module 300, a firing module 400, a transmitter module 500, a sealing module 600, and a charging module 700.

[0071] REFERENCE Figure 5-6 The shell module 000 is a detachable shell structure, which has a positioning effect on the modules and structures of the safe self-locking needle helper, and limits the movement and position of the modules and structures. The shell module 000 is composed of a shell 001, which includes a battery insertion port 0011, a reset port 0012, a trigger positioning shaft hole 0013, a locking positioning recess 0014, a trigger positioning recess 0015, a shell limiting recess 0016, a locking positioning shaft hole 0017, a power transformer positioning structure 0018, a positioning upper ring 0019, a positioning lower ring 00110, a charging positioning structure 00111, and a trigger port 00112. The trigger positioning recess 0015 is used to position the lower bearing surface of the trigger elastic member 204 in the “trigger mode” state. The trigger elastic member is preferably a mechanical part that works by using elasticity, and the preferred trigger spring in the embodiment.

[0072] The battery plug-in port 0011 is used for the insertion channel of the charging battery in the "charging mode" state; the reset port 0012 is used for the channel of the reset button 101 in the "reset mode" state; the trigger positioning shaft hole 0013 is used for the positioning of the shaft line of the locking turn buckle 303 in the "locking mode" state; the locking positioning concave platform 0014 is used for the positioning of the upper bearing surface of the locking elastic member 302 in the "locking mode" state, and the locking elastic member is preferably a mechanical part working by elasticity, and the locking compression spring is preferred in the embodiment; the shell limiting concave platform 0016 is used for the cooperation with the locking button limiting convex platform 3013 of the locking button 301 in the "locking mode" state, and serves as the limiting of the locking button 301; the locking positioning shaft hole 0017 is used for the positioning of the shaft line of the locking button 301 in the "locking mode" state; the power transformer positioning structure 0018 is used for the assembly positioning of the power transformer 702; the positioning upper ring 0019 is used for the positioning of the upper end surface of the inner shell 401 in the firing module 400; the positioning lower ring 00110 is used for the positioning of the lower end surface of the inner shell 401 in the firing module 400; the charging positioning structure 00111 is used for the plug-in positioning of the charging battery in the "charging mode" state; and the trigger port 00112 is used for the channel of the trigger button 201 in the "trigger mode" state.

[0073] Reference Figure 7-8 The reset module 100 includes the reset button 101 and the reset elastic member 102, the reset button 101 includes the reset button key surface 1011, the linear rib 1012, the outer tapered circular platform 1013 and the reset button limiting end surface 1014, and the reset elastic member 102 includes the reset elastic member upper bearing surface and the reset elastic member lower bearing surface, and the reset elastic member is preferably a mechanical part working by elasticity, and the reset compression spring is preferred in the embodiment.

[0074] The reset button key surface 1011 is pressed by the user to activate and close the reset button 101; the linear rib 1012 is inserted and matched with the reset port 0012, and is still a rotation-stopping cooperation, which can constrain the rotation degree of freedom of the reset button 101, so that it can only move along the linear rib direction; the outer tapered circular platform 1013 is used for the insertion hole 4021 in the needle pulling member 402 in the "reset mode" state, realizes that the needle pulling member buckle 4022 in the needle pulling member 402 is in the opening state, and completes the pushing out of the guide needle 406, and prepares for the replacement of the spare launcher assembly package; and the reset button limiting end surface 1014 is intermittently matched with the reset port 0012, and can constrain the reset button 101 to only move in a certain range along the linear rib direction.

[0075] The upper and lower bearing surfaces of the reset elastic member 102 are built in the cavity surrounded by the linear rib 1012, and the deformation amount of the reset elastic member 102 is equal to the vertical movement amount of the reset button 101.

[0076] Reference Figure 4 The trigger module 200 includes a trigger button 201, a trigger lever 202, a trigger piston 203, and a trigger elastic member 204. Figure 9-1 、 9-2 The trigger button 201 includes a trigger button key surface 2011, a trigger button limiting end surface 2012, and a trigger button pressing end surface 2013. A user activates and closes the trigger button 201 by pressing the trigger button key surface 2011. The trigger button limiting end surface 2012 can limit the fixed height of the exposed trigger button 201 from the shell 001. The trigger button pressing end surface 2013 is in contact with the lever end surface 2024 in the trigger lever 202. After pressing the trigger button 201, the movement stroke of the trigger button 201 can be transmitted to the lever end surface 2024, which is converted into the angular stroke of the trigger lever 202.

[0077] Reference Figure 10 The trigger lever 202 includes a motion output end 2021, a lever positioning shaft hole 2022, a lever positioning shaft head 2023, a lever end surface 2024, and a trigger lever locking end surface 2025. The motion output end 2021 is in contact with the locking concave table a2032 in the trigger piston 203, and the movement of the trigger lever 202 can activate the movement of the trigger piston 203. The lever positioning shaft hole 2022 and the shaft hole 4011 in the inner shell 401 are axially positioned by a convex shaft, so that the trigger lever 202 can rotate up and down around the shaft hole 4011 on the inner shell 401, and drive the trigger piston 203 to move up and down. The lever positioning shaft head 2023 cooperates with the trigger spring upper bearing surface in the trigger elastic member 204. The original state of the trigger elastic member 204 can be transmitted to the trigger button 201 through the lever positioning shaft head 2023, so that the trigger button 201 is in the closed state. The lever end surface 2024 is in contact with the trigger button pressing end surface 2013. The trigger lever locking end surface 2025 is in contact with and disconnected from the locking turn buckle end surface 3032 in the locking turn buckle 303. When the trigger lever locking end surface 2025 is in contact with the locking turn buckle end surface 3032, the trigger module 200 is in the locked state. When the trigger lever locking end surface 2025 is disconnected from the locking turn buckle end surface 3032, the trigger module 200 is in the activated state.

[0078] Reference Figure 11-1 、 11-2The trigger piston 203 includes a trigger piston positioning shaft head 2031, a locking concave platform a 2032, a piston cylindrical surface 2033, a locking shaft head 2034, a profiled notch 2035, and a limiting end surface 2036. The trigger piston positioning shaft head 2031 is in abutting cooperation with a lower bearing surface of a return compression spring. The locking concave platform a 2032 forms a high pair contact with the movement output end 2021. The piston cylindrical surface 2033 cooperates with a transition conical surface 4014 in the inner shell 401, so that the trigger piston 203 can slide up and down in the inner shell 401 along with the pressing of the trigger button 201. The locking shaft head 2034 has two states of contact and disconnection with a firing shell outer clamping jaw 4055 in the firing shell 405. The profiled notch 2035 cooperates with a linear rib 1012 in the reset button 101, so that the pushing out of the guide needle 406 can be completed by only pressing the reset button 101. The limiting end surface 2036 has two states of contact and disconnection with an upper end surface of the firing shell outer clamping jaw 4055 in the firing shell 405. When the limiting end surface 2036 is in contact with the firing shell outer clamping jaw 4055, the limiting of the firing shell outer clamping jaw 4055 can be realized by cooperating with a cavity cylindrical surface in the inner shell 405, so that the firing module remains in an untriggered state.

[0079] The trigger elastic member 204 includes a trigger compression spring upper bearing surface and a trigger compression spring lower bearing surface. The trigger elastic member 204 is positioned in a trigger positioning concave platform 0015. The trigger compression spring upper bearing surface cooperates with the lever positioning shaft head 2023. The deformation amount of the trigger elastic member 204 controls the downward pressing distance of the trigger button 201.

[0080] Reference is made to Figure 4 The locking module 300 includes a locking button 301, a locking compression spring 302, and a locking turn buckle 303. Reference is made to Figure 12The locking button 301 comprises locking button ratchet 3011, locking concave platform b 3012, locking button limiting boss 3013, locking button positioning shaft head 3014 and locking button pressing surface 3015. The locking button ratchet 3011 is a toothed structure, which forms a meshing relationship with the locking turnbuckle ratchet 3033 in the locking turnbuckle 303. At the same time, the transmission characteristics between the teeth are used. When the locking button 301 is pressed, the locking button ratchet 3011 drives the locking turnbuckle ratchet 3033 to rotate with an equivalent transmission ratio, so as to realize the opening and closing of the locking module. The locking concave platform b 3012 cooperates with the locking spring lower bearing surface in the locking spring 302 to limit the movement of the locking spring 302 and accommodate the locking spring 302. The force storage of the locking spring 302 can be transmitted to the locking button 301 through the locking concave platform b 3012. The locking button limiting boss 3013 cooperates with the shell limiting concave platform 0016 in the shell 001 to limit the locking button. The locking button positioning shaft head 3014 cooperates with the locking positioning shaft hole 0017 in the shell 001 to position the axis of the locking button 301. After cooperation, the locking button positioning shaft head 3014 can rotate around the axis to realize the opening and closing of the locking button 301. The locking button pressing surface 3015 has a toothed protrusion on the surface, which can increase the comfort and usability of the user's operation.

[0081] The locking spring 302 comprises a locking spring upper bearing surface and a locking spring lower bearing surface. The spring 302 is partially positioned in the locking concave platform b 3012 in the initial state.

[0082] The locking button 301 and the trigger button 201 are opposite in direction, that is, when the locking button 301 is pressed upward, the trigger button 201 is pressed downward at the same time, the firing module 400 is triggered, and the reset module 100 can move up and down to perform effective movement, or when the locking button 301 is pressed downward, the trigger button 201 is pressed upward at the same time, the firing module 400 is triggered, and the reset module 100 can move up and down to perform effective movement. The above structure facilitates single-handed operation by the user. When the locking button 301 and the trigger button 201 are not operated at the same time, the reset module 100 can move up and down, but it is an invalid movement. At this time, in order to prevent the reset module 100 from moving up and down, a limiting structure can be additionally provided.

[0083] Reference Figure 13The locking turn buckle 303 includes a locking turn buckle positioning shaft head 3031, a locking turn buckle end surface 3032, and a locking turn buckle catch 3033. The locking turn buckle positioning shaft head 3031 cooperates with the trigger positioning shaft hole 0013 in the outer shell 001, and the locking turn buckle 303 can perform axis rotation movement around the locking turn buckle positioning shaft head 3031. The locking turn buckle end surface 3032 has two states of contact and disconnection with the trigger lever locking end surface 2025 in the trigger lever 202. When the locking turn buckle end surface 3032 is in contact with the trigger lever locking end surface 2025 in the trigger lever 202, the movement of the trigger lever locking end surface 2025 is limited due to the locking turn buckle end surface 3032. At this time, the trigger button 201 is locked, and the needle helper is also in a locked state. The locking turn buckle catch 3033 is a toothed structure, and forms a meshing relationship with the locking button catch 3011 in the locking button 301. By using the transmission characteristics between the teeth, when the locking button 301 is pressed, the locking button catch 3011 drives the locking turn buckle catch 3033 to rotate with an equivalent transmission ratio.

[0084] Reference Figure 4 The firing module includes an inner shell 401, a needle pulling piece 402, and a needle pulling spring 403. Reference Figure 14-15The inner shell 401 includes a positioning shaft hole 4011, a charging module wiring serial port 4012, an inner shell elastic contact 4013, a transition taper surface 4014, a transition wire 4015, an upper and lower sliding groove 4016, a bottom edge notch 4018, and a limiting window 4017. The positioning shaft hole 4011 is axially positioned with the lever positioning shaft hole 2022 in the trigger lever 202 through a convex shaft, so that the trigger lever 202 can relatively rotate and swing on the inner shell 401, so that the trigger piston 203 can move up and down. The charging module wiring serial port 4012 is in communication with the inner shell elastic contact 4013, and the charging module wiring serial port 4012 and the inner shell elastic contact 4013 are equal in number, which can be one to multiple, and preferably three in the embodiment. The inner shell elastic contact 4013 is paired with the battery metal sheet 5021 in the charging battery, and in the “charging mode” state, the inner shell elastic contact 4013 and the battery metal sheet 5021 are connected for charging. The transition taper surface 4014 is in contact with and disconnected from the firing shell body outer claw slope 4052 in the firing shell body 405, and when the transition taper surface 4014 is in contact with the firing shell body outer claw slope 4052 in the firing shell body 405, the locking shaft head 2034 of the trigger piston 203 is also in contact with the firing shell body outer claw 4055, thereby limiting and fixing the firing shell body outer claw 4055. When the trigger piston 203 releases the limiting of the firing shell body outer claw 4055, the firing shell body outer claw 4055 can slide up and down along the upper and lower sliding grooves 4016. The transition wire 4015 bridges the charging module wiring serial port 4012 and the inner shell elastic contact 4013, and the transition wire 4015 is connected with the internal wire. When the charging socket is inserted into the power supply, the charging of the transmitter battery 502 is realized.

[0085] Reference Figure 16-1 , 16-2 The needle pulling piece 402 includes a plug-in hole 4021 and a needle pulling piece buckle 4022. The plug-in hole 4021 is used to cooperate with the outer conical frustum 1013 in the “reset state” to achieve the opening and closing of the needle pulling piece buckle 4022 and complete the pushing out of the guide needle 406. The needle pulling piece buckle 4022 is used to fix the guide needle 406. Specifically, three needle pulling piece elastic sheets 4023 are formed in the needle pulling piece buckle 4022, and the clamping or loosening of the guide needle 406 is achieved by outward opening or inward contraction of the needle pulling piece elastic sheets 4023.

[0086] Reference Figure 17-18The firing shell 405 includes a firing shell outer claw back 4051, a firing shell outer claw bevel 4052, a firing shell inner claw 4056, a firing shell outer claw 4055, a firing shell bottom edge buckle 4057, and a firing shell bottom edge protrusion 4058. The claws of the firing shell inner claw 4056 and the firing shell outer claw 4055 have elastic deformation. The firing shell inner claw 4056 is clamped with the needle pulling piece 402. After the firing module 400 is fired, the firing shell inner claw 4056 is separated from the needle pulling piece 402 to realize the needle pulling action. The firing shell outer claw 4055 includes a firing shell outer claw back 4051 and a firing shell outer claw bevel 4052. The firing shell outer claw back 4051 has two states of contact and disconnection with the locking shaft head 2034 in the trigger piston 203. The firing shell outer claw bevel 4052 has two states of contact and disconnection with the transition cone surface 4014 in the 401 inner shell.

[0087] Reference Figure 4 The transmitter module 500 includes a transmitter shell 501 and a transmitter battery 502. The transmitter battery 502 is separately arranged with the transmitter shell 501, which saves the power waste of the transmitter before use. If it is found that the battery has been scrapped due to force majeure before use, a standby battery can be replaced immediately to realize resource saving. The transmitter battery 502 and the transmitter shell 501 can also be integrally arranged to provide power for the transmitter. Figure 19-21 The transmitter shell 501 includes a transmitter shell elastic contact 5011, a needle passing channel 5012, a battery insertion slot 5013, and a sensor 5014. The transmitter shell elastic contact 5011 is in an on state with the battery metal sheet 5021 in the transmitter battery 502 in the “charging mode” state. The needle passing channel 5012 can guide the guide needle 406 to pass through and penetrate into the sensor 5014. The battery insertion slot 5013 is a T-shaped sliding groove, which cooperates with the battery protruding edge 5022 of the transmitter battery 502 to enable the transmitter battery 502 to move only along the battery insertion slot 5013, thereby realizing the plug-in installation of the transmitter battery 502. The sensor 5014 is arranged in the transmitter shell 501. The transmitter shell 501 presses the sensor contact end face, and only the sensor wire body is exposed as the implantable part of the human body.

[0088] Reference Figure 22The transmitter battery 502 comprises a battery metal sheet 5021 and a battery convex edge 5022, the battery metal sheet 5021 can be in contact with the transmitter shell elastic contact piece 5011, when the charging module is connected, the transmitter battery 502 can be charged, and the service life of the transmitter is prolonged; the battery convex edge 5022 is matched with the battery insertion slot 5013 in the transmitter shell 501, the transmitter battery 502 can be inserted into the transmitter shell 501 in one direction, and power supply for the transmitter module 500 is realized.

[0089] Reference Figure 4 The sealing module 600 is composed of a sealing screw cap 601, the sealing screw cap 601 comprises a screw cap thread 6011, a protective sleeve 6012 and an anti-skid convex edge 6013. The screw cap thread 6011 can be matched with the shell thread, so that the transmitter is closed, and transportation and preservation before use are facilitated; the protective sleeve 6012 is a cavity, dry agent and temperature maintaining devices are placed in the protective sleeve 6012, the guide needle 406 and the sensor 5014 can be kept in a sterile, dry, low-light and temperature-controlled environment before use, and the service life of the sensor 5014 is prolonged; the anti-skid convex edge 6013 increases the friction force of finger adhesion, and the user can better screw / unscrew the sealing screw cap 601.

[0090] Reference Figure 23 The charging module 700 comprises a charging socket 701, a power transformer 702, a wire 703 and a wire joint 704. The charging socket 701 and the internal metal contact of the charging base are connected, when the charging base is connected with the power supply, the charging state is achieved; the power transformer 702 can reduce the voltage of the external power supply, meet the required rated voltage of the product, ensure that the charging is constant, when the charging is completed, the charging is automatically cut off, and a power-off prompt is carried out, which is not limited to sound and / or display light and the like; the internal wire 703 can connect the internal components of the product; the wire joint 704 is connected with 4012 in the inner shell 401.

[0091] The use process of the present application is as follows:

[0092] Reference Figure 24 When the user uses the needle helper of the present application, the locking button 301 needs to be pressed first and the pressing state of the locking button 301 is kept, then the trigger button 201 is pressed with another finger, and the firing of the needle helper is completed.

[0093] Reference Figure 25When the locking button pressing surface 3015 of the locking button 301 is pressed, the locking spring 302 is elastically deformed, the locking button 301 moves along the axis of the locking button positioning shaft head 3014 to drive the locking button catch 3011 to move to the limiting position in the direction of the arrow. At the same time, the locking button catch 3011 will mesh with the trigger gear of the locking rotating catch catch 3033 to move, so that the locking rotating catch 303 moves along the axis of the locking rotating catch positioning shaft head 3031 to drive the locking rotating catch 303 to move to the limiting position in the direction of the arrow. Further, the locking rotating catch end surface 3032 is separated from the trigger lever locking end surface 2025, and at this time the needle helper locking module 300 is in an activated state, and the trigger button 201 can be pressed; if the locking module 300 is in a closed state, the trigger button 201 cannot be pressed.

[0094] Reference Figure 26 , keep the pressing state of the locking button 301, press the trigger button 201 to the limiting position in the direction of the arrow shown in the figure, and the elastic deformation of the trigger elastic member 204 is equal to the distance of the trigger button 201 moving in the direction of the arrow. At the same time, in the process of the trigger button 201 moving downward, the lever end surface 2024 of the trigger lever 202 will move downward, the trigger lever mechanism will move, so that the trigger lever 202 moves along the axis of the lever positioning shaft hole 2022 to move to the limiting position in the direction of the arrow shown at the lever positioning shaft hole 2022, and further through the movement of the output end 2021, the trigger piston 203 is lifted upward to the limiting position, and at this time the firing module 400 is in an activated state.

[0095] Reference Figure 27 After the firing module 400 is activated, because the trigger piston 203 is lifted upward by the movement of the output end 2021, the limit on the outer pawl 4056 of the firing shell 405 is released, and under the driving force of the firing spring 404, the firing shell 405 moves downward.

[0096] Reference Figure 28 When the firing shell 405 moves to the position where the firing shell bottom edge protrusion 4058 abuts against the bottom of the limiting window 4017, the firing shell 405 moves to the limiting position. At this time, the firing shell outer pawl 4055 and the firing shell inner pawl 4056 descend to the inner space of the inner shell 401, thereby relaxing the clamping of the needle pulling piece 402.

[0097] Reference Figure 29 When the firing shell 405 moves to the limiting position, the firing shell bottom edge buckle 4057 moves to the corresponding position of the inner shell 401 bottom edge notch 4018, the firing shell bottom edge buckle 4057 is opened, loses the limit on the launcher module 500, and the elastic force of the needle pulling spring 403 drives the needle pulling piece 402 to move upward, completing the implantation of the sensor 5014 into the skin and the needle withdrawal action.

[0098] Reference Figure 30 After the firing module 400 is fully fired, the emitter module 500 is placed on the human skin, and because the emitter module 500 has adhesiveness at the skin end, it can be firmly attached to the skin.

[0099] Reference Figure 31 After the emitter module 500 is attached to the skin, the battery protrusion 5022 of the emitter battery 502 is inserted along the direction of the battery insertion slot 5013, thereby starting the dynamic detection of the sensor 5014.

[0100] In order to realize the reuse of the needle helper:

[0101] Reference Figure 32 In order to disassemble the guide needle 406 after use or pollution, the operation method is to press the reset button surface 1011 in the arrow direction to the limit position.

[0102] Reference Figure 33 After pressing the reset button 101 to the limit position, the elastic deformation of the reset elastic member 102 is equal to the downward movement distance of the reset button 101, and the reset elastic member 102 and the needle pulling spring 403 are in a force storage state. The outer conical circular cone 1013 is a cylindrical boss with a taper, which cooperates with the plug hole 4021. Further, the outer conical circular cone 1013 can make the needle pulling member buckle 4022 in the needle pulling member 402 change from the clamping state to the strutting state, so that the needle pulling member 402 is no longer buckled with the guide needle 406, thereby realizing the disengagement of the guide needle 406 from the needle helper.

[0103] Reference Figure 34 The standby emitter assembly package is torn open for standby use.

[0104] Reference Figure 35 After continuing to press the reset button 101, because the needle pulling member 402 moves to the lowest end of the firing shell 405 after pressing the reset button 101, and the needle pulling member spring 4023 in the needle pulling member buckle 4022 is in the strutting state, then press the locking button 301 to the limit position, and finally press the trigger button 201 to the limit position. The standby emitter assembly can be inserted into the firing shell 405 in the direction indicated by the arrow.

[0105] Reference Figure 36 After pressing the locking button 301 and the trigger button 201, the trigger piston 203 rises to the limit position (firing device activated); the standby emitter assembly is inserted into the firing shell 405, and the firing shell 405 surrounds the emitter module 500.

[0106] Reference Figure 37, the reset button 101 is released, the inner claw 4056 and the outer claw 4055 in the firing shell body are in contact with the inner shell 401, so that the needle pulling piece 402 does not continue to move upward due to the elastic force of the needle pulling spring 403, and after the reset button 101 is released, the outer conical table 1013 also moves upward, no longer supporting the needle pulling piece buckle 4022, realizing the buckling of the needle pulling piece 402 and the standby guide needle 406, and the coupling of the launcher module and the bottom buckle 4057 of the firing shell body; after the trigger button 201 and the locking button 301 are released, the trigger piston 203 descends to the initial position, and the firing shell 405 is coupled (the firing module 400 is not activated).

[0107] As shown in Figure 38 , the standby launcher assembly package is pulled out along the arrow direction, and the standby launcher and the standby guide needle are in an unactivated state, and the reusable function of the needle helper is realized through the above operation. (According to the number of times of reuse, a corresponding number of standby sensor assembly packages need to be prepared)

[0108] Referring to Figure 39 , when not in use temporarily, the sealing screw cap 601 can be tightened again, and the guide needle and the sensor are protected by the protective sleeve 6012 in the sealing screw cap.

[0109] In order to realize the charging of the needle helper:

[0110] Referring to Figure 40 , the launcher battery 502 is inserted into the charging positioning structure 00111, the battery metal sheet 5021 of the launcher battery is in contact with the elastic contact sheet 4013 of the inner shell, the charging socket 701 is inserted into the charging base, and the plug of the charging base is inserted into the external power supply. In the charging state, the charging base / needle helper is not limited to sound and / or light source prompt charging; the power transformer 702 in the charging module 700 can reduce the voltage of the external power supply to ensure constant charging, and automatically cut off the charging after the charging is completed, and perform sound and / or light source prompt charging completion; after the charging is completed, the launcher battery 502 is taken out and can be inserted into the battery insertion slot 5013 of the launcher module 500 to continuously supply power to the sensor.

[0111] The above specific embodiments are used to explain and illustrate the present application, rather than limit the present application, and any modification and change made to the present application within the spirit and protection scope of the claims of the present application all fall within the protection scope of the present application.

Claims

1. A safety self-locking needle helper characterized in that The application relates to a needle injection device, which comprises the following modules: a housing module (000); a firing module (400) for clamping or releasing a guide needle (406); a transmitter module (500) comprising at least a transmitter housing (501) and a sensor (5014) penetrating the transmitter housing (501), at least a part of the sensor (5014) being located in the guide needle (406); a trigger module (200) comprising at least a trigger button (201), a trigger piston (203) cooperating with the firing module (400), and a trigger lever (202) capable of driving the trigger piston (203) up and down under the drive of the trigger button (201); the trigger module (200) further comprises a trigger elastic member (204) abutting against one end of the trigger lever (202) and the other end of the trigger elastic member (204) abutting against the housing module (000); the trigger lever (202) comprises a motion output end (2021) penetrating into the trigger piston (203), a lever positioning shaft hole (2022) connected with the firing module (400) in rotation, a lever positioning shaft head (2023) cooperating with the trigger elastic member (204), a lever end surface (2024) abutting against the trigger button (201), and a trigger lever locking end surface (2025) cooperating with a locking turn buckle (303); a locking module (300) comprising at least a locking button (301) and the locking turn buckle (303) cooperating with the trigger module (200) for locking or unlocking the trigger module (200); when the locking module (300) unlocks the trigger module (200), the trigger button (201) can be operated to trigger the firing module; a reset module (100) comprising a reset button (101) and a reset elastic member (102); the trigger button (201) and the locking button (301) are oppositely directed, and when the locking button (301) is pressed downward and the trigger button (201) is pressed upward, or when the locking button (301) is pressed upward and the trigger button (201) is pressed downward, the reset module (100) can be moved up and down.

2. The safety lock needle helper according to claim 1, characterized in that: the trigger piston (203) comprises a trigger piston positioning shaft head (2031) cooperating with the reset elastic member (102), a locking concave platform a (2032) in high contact with the motion output end (2021), a piston cylindrical surface (2033) cooperating with the firing module (400), a profiled notch (2035) cooperating with the reset button (101) in rotation, a locking shaft head (2034), and a limiting end surface (2036), the locking shaft head (2034) and the limiting end surface (2036) can cooperate with the firing module (400) to realize the contact and disconnection of the trigger piston (203) and the firing module (400).

3. The safety lock needle helper according to claim 1, characterized in that: The locking module (300) further comprises a locking elastic member (302) which is in abutment with the locking button (301) at one end and in abutment with the shell module (000) at the other end; the locking button (301) is provided with a locking button ratchet (3011), a locking recess b (3012), a locking button limiting boss (3013), a locking button positioning shaft head (3014), and a locking button pressing end face (3015); the locking button ratchet (3011) is engaged with the locking rotating catch (303) ratchet (3033); the locking recess b (3012) is used for limiting the locking elastic member (302) and transmitting the force storage of the locking elastic member (302) to the locking button (301); the locking button limiting boss (3013) is used for limiting the locking button (301) and the shell module (000); and the locking button positioning shaft head (3014) is used for positioning the axis of the locking button (301).

4. The safety lock needle helper according to claim 3, characterized in that: The locking rotating catch (303) further comprises a locking rotating catch positioning shaft head (3031) and a locking rotating catch end face (3032); the locking rotating catch positioning shaft head (3031) is rotatably connected with the shell module (000); and the locking rotating catch end face (3032) has two states of contact and disconnection with the trigger lever locking end face (2025).

5. The safety lock needle helper according to claim 1, wherein: The firing module (400) comprises an inner shell (401), a needle pulling member (402), a needle pulling spring (403), and a firing shell (405); the inner shell (401) comprises a positioning shaft hole (4011), a charging module wiring serial port (4012), an inner shell elastic contact (4013) in communication with the charging module wiring serial port (4012), a transition taper (4014), a transition lead (4015), an upper and lower sliding groove (4016), a bottom edge notch (4018), and a limiting window (4017); and the positioning shaft hole (4011) is rotatably connected with the lever positioning shaft hole (2022); the needle pulling member (402) comprises a plug-in hole (4021), a needle pulling member buckle (4022), and a needle pulling member elastic piece (4023) in the needle pulling member buckle (4022); and the needle pulling member elastic piece (4023) is used for clamping or releasing the guide needle (406).

6. The safety lock needle helper according to claim 5, characterized in that: The firing shell (405) comprises a firing shell inner clamping jaw (4056) and a firing shell outer clamping jaw (4055); the firing shell outer clamping jaw (4055) is provided with a firing shell outer clamping jaw back face (4051) and a firing shell outer clamping jaw inclined surface (4052); the transition taper (4014) and the firing shell outer clamping jaw inclined surface (4052) have two states of contact and disconnection, thereby limiting and fixing the firing shell outer clamping jaw (4055); and the firing shell outer clamping jaw back face (4051) can have two states of contact and disconnection with the locking shaft head (2034).

7. The safety lock needle helper according to claim 1, wherein: The transmitter housing (501) includes transmitter housing elastic contact (5011), over-needle channel (5012), and battery insertion slot (5013), in the "charging mode" state, the transmitter housing elastic contact (5011) and the battery metal sheet (5021) in the transmitter battery (502) are in the on state, the over-needle channel (5012) is used to guide the guide needle (406) to pass through, the battery insertion slot (5013) is a T-shaped sliding groove, which is limited with the battery convex edge (5022) of the transmitter battery (502).

8. The safety lock needle helper according to claim 5, characterized in that: Also includes a charging module (700), which includes a charging socket (701), power transformer (702), wire (703), and wire connector (704), the charging socket (701) can be connected with the charging base internal metal contact, the power transformer (702) is used to reduce the voltage of external power supply, the wire connector (704) is connected with the charging module wiring serial port (4012).

9. The safety lock needle helper according to claim 3, characterized in that: The shell module (000) includes a shell (001) with a battery insertion port (0011), a reset port (0012), a trigger positioning shaft hole (0013), a locking positioning recess (0014), a trigger positioning recess (0015), a shell limiting recess (0016), a locking positioning shaft hole (0017), a power transformer positioning structure (0018), a positioning upper ring (0019), a positioning lower ring (00110), a charging positioning structure (00111), and a trigger port (00112), the trigger positioning recess (0015) is matched with the trigger elastic piece (204), the reset button (101) passes through the reset port (0012) into the shell (001), the trigger positioning shaft hole (0013) is used to rotate the locking turn buckle (303), the locking positioning recess (0014) is matched with the locking elastic piece (302), the shell limiting recess (0016) is matched with the locking button limiting boss (3013) to form the limiting of the locking button (301), the locking positioning shaft hole (0017) is rotatably connected with the locking button (301), the positioning upper ring (0019) and the positioning lower ring (00110) are used to position the firing module (400).

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