A biosensor-assisted implantation device

Abstract

This invention discloses a biosensor-assisted implantation device in the field of implantable biosensor devices, comprising a transmitter assembly, a battery assembly, and a transmitter assembly. The transmitter assembly is used to launch the sensor into the human body via a spring-driven sliding member, and to quickly separate the sensor by spring-driven retraction of the sliding member. The battery assembly is used to fix the sensor and power the entire device. The transmitter assembly is assembled with the battery assembly and electrically connected to the sensor, transmitting the sensor's monitoring signal to a wireless terminal device. This invention enables rapid sensor implantation and automatic needle removal without requiring external force from the user, making it more convenient to use and avoiding the risk of needle removal failure due to misoperation. The miniaturized design allows for convenient one-handed operation.

Description

Technical Field

[0001] This invention relates to the field of implantable biosensor devices, and more specifically, to a biosensor-assisted implantation device. Background Technology

[0002] Diabetes mellitus is a syndrome caused by a relative or absolute deficiency of insulin and varying degrees of insulin resistance, leading to disorders in carbohydrate, fat, and protein metabolism. Persistent hyperglycemia is its biochemical characteristic. With an aging population, dietary imbalances, reduced physical activity, and a continued increase in obesity, the incidence of diabetes will continue to rise in both developed and developing countries.

[0003] Therefore, a method capable of providing continuous blood glucose monitoring is needed so that patients can know their blood glucose levels at any time, take timely measures, and most effectively control their condition, prevent complications, and achieve a higher quality of life. To obtain real-time data, measuring tissue fluid is a practically available continuous monitoring method. Implanting sensors into blood vessels as everyday patient-carried devices avoids high risks such as infection or blood loss while effectively providing essential data, making it an important direction for the development of clinical monitoring.

[0004] Chinese invention patent CN103750818B discloses a subcutaneous implantable biosensor, which is implanted into the subcutaneous tissue for detection. Existing implantable biosensors are very small, and when implanted into the skin, they are wrapped in a rigid needle and inserted into the subcutaneous tissue. The rigid needle is then withdrawn, leaving the implantable biosensor in the subcutaneous tissue.

[0005] Existing products using implantable rigid needles and implantable biosensors suffer from slow implantation speeds, inaccurate placement, and prolonged implantation and withdrawal times, causing stinging sensations and increased user discomfort. Furthermore, the slow implantation speed can damage subcutaneous tissue, negatively impacting the detection performance of the implantable biosensors. Summary of the Invention

[0006] To overcome the risks associated with current implantation devices, such as premature ejection of the ejection mechanism due to misoperation, easy injury to the user from the hard needle, and excessive retention of the hard needle in the body causing significant stinging and increased pain and foreign body sensation, this invention provides a biosensor-assisted implantation device.

[0007] The technical solution of this invention is as follows:

[0008] A biosensor-assisted implantation device, characterized in that it comprises:

[0009] The launch tube assembly is used to launch a sensor toward the human body by a spring-driven slider and to quickly separate the slider from the sensor by a spring-driven pull-back.

[0010] A battery assembly is used to secure the sensor and power the entire device.

[0011] The transmitter assembly is assembled with the battery assembly and electrically connected to the sensor, and transmits the monitoring signal of the sensor to the wireless terminal device.

[0012] According to the present invention described above, the launching tube assembly includes a launching tube, a launching spring, a needle seat, a needle-drawing spring, and a sliding member.

[0013] The needle holder and the sliding member are both located inside the ejection tube and slide up and down along the ejection tube. The sliding member is engaged with the needle holder and can rotate relative to the needle holder. The sliding member is also engaged with the sensor, and the vertical extension end of the sensor is fitted inside the guide needle at the bottom of the needle holder.

[0014] The launching spring is located between the ejection tube and the needle seat, with its upper end abutting against the top of the ejection tube and its lower end abutting against the sliding member. The launching spring is used to drive the needle seat and the sliding member to be ejected along the ejection tube.

[0015] The needle-pulling spring is located inside the needle holder, with its top abutting against the top of the needle holder and its bottom abutting against the sliding member. The needle-pulling spring is used to drive the needle holder to rebound.

[0016] Furthermore, the ejection tube includes an ejection tube body and an ejection fastener located on the ejection tube body. When the sliding member is not ejected, the ejection fastener is engaged with the sliding member.

[0017] Furthermore, the ejector fastener includes a pressing part and a hooking part located at opposite ends. The pressing part is suspended relative to the ejector tube body, and the hooking part engages with the sliding member.

[0018] Furthermore, the outer side of the slider is provided with a protruding slider outer locking block, which engages with the hook part, so that when the slider is not ejected, the slider is engaged with the ejection fastener.

[0019] Furthermore, a limiting ring is fitted on the outer side of the ejection tube body. The limiting ring includes a limiting ring body and a closing limiting protrusion and an unlocking area located on the limiting ring body. The inner surface of the pressing part abuts against the closing limiting protrusion, or the pressing part is suspended outside the unlocking area.

[0020] Furthermore, the lower end of the ejection tube body is provided with a protruding ejection tube locking strip, and the battery cover of the battery assembly is provided with an arc-shaped groove that runs vertically through the battery, and the arc-shaped groove is provided with a protruding cover locking strip, which engages with the ejection tube locking strip.

[0021] Furthermore, the top of the ejection tube body is provided with a downwardly extending guide post, and the top of the needle seat is provided with a guide slot that runs vertically through the body. The guide post extends into the guide slot, allowing the needle seat to slide up and down along the guide post.

[0022] Furthermore, the needle hub includes a needle hub body for driving sensor implantation and realizing needle withdrawal, a guide needle located at the lower end of the needle hub for guiding the sensor, the lower end of the needle hub body is open, and the top of the needle hub body is provided with a downwardly extending central column, the bottom of the central column is provided with a needle hub inner protrusion, the inside of the sliding member is provided with a sliding member inner locking block corresponding to the needle hub inner protrusion, when the needle hub and the sliding member are in the ejection state, the sliding member inner locking block is engaged with the needle hub inner protrusion, when the needle hub is in the springback state, the sliding member inner locking block is misaligned and separated from the needle hub inner protrusion.

[0023] Furthermore, the bottom of the sliding member is provided with a mounting groove for the sensor to pass through, and the side wall of the mounting groove is provided with a protruding mounting strip for the sensor to engage.

[0024] According to the above-described solution, the beneficial effects of this invention are that, through the application of multiple snap-fit ​​structures and launching springs and needle-removing springs, the invention can achieve rapid implantation of sensors and automatic needle removal, avoiding the risk of needle removal failure due to misoperation. At the same time, the miniaturized design enables convenient one-handed operation, and the internal springs and snap-fits of the implanter automatically unlock and release during the puncture and retrieval of the guide needle, without requiring external force from the user, making it more convenient to use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram showing the connection between the launch tube assembly and the battery assembly in this invention;

[0026] Figure 2 This is a structural exploded view of the launch tube assembly and battery assembly in this invention;

[0027] Figure 3 This is a schematic diagram of the launch tube assembly before the launch sensor in this invention;

[0028] Figure 4 This is a schematic diagram of the launch tube assembly after the launch sensor in this invention;

[0029] Figure 5This is a schematic diagram from another perspective after the launch sensor is emitted from the launch tube assembly in this invention;

[0030] Figure 6 This is a cross-sectional view of the launching tube assembly in this invention;

[0031] Figure 7 This is a cross-sectional view of the launch tube assembly in this invention from another perspective;

[0032] Figure 8 This is an exploded view of the launching tube assembly in this invention;

[0033] Figure 9 This is a schematic diagram of the ejection tube in this invention;

[0034] Figure 10 This is a schematic diagram of the catapult tube from another perspective in this invention;

[0035] Figure 11 This is a schematic diagram of the needle holder structure in this invention;

[0036] Figure 12 This is a schematic diagram of the needle holder from another perspective in this invention;

[0037] Figure 13 This is a schematic diagram of the sliding component in this invention;

[0038] Figure 14 This is a schematic diagram of the slider in this invention from another perspective;

[0039] Figure 15 This is a schematic diagram of the sensor and probe mount in this invention;

[0040] Figure 16 This is a schematic diagram of the limiting ring in this invention;

[0041] Figure 17 This is a schematic diagram showing the connection between the battery assembly and the transmitter assembly in this invention;

[0042] Figure 18 This is another schematic diagram showing the connection between the battery assembly and the transmitter assembly in this invention;

[0043] Figure 19 This is a split view of the battery assembly and the transmitter assembly in this invention;

[0044] Figure 20 This is an exploded view of the battery assembly in this invention;

[0045] Figure 21 This is a schematic diagram from another perspective of the battery assembly after it has been disassembled in this invention;

[0046] Figure 22 This is a schematic diagram of the structure of the battery cover in this invention;

[0047] Figure 23 This is an exploded view of the transmitter assembly in this invention;

[0048] Figure 24 This is a schematic diagram from another perspective after the transmitter assembly is disassembled in this invention.

[0049] In the diagram, the labels for each item are as follows:

[0050] 100. Launch tube assembly;

[0051] 110. Ejector tube; 111. Ejector tube body; 112. Ejector fastener; 1121. Pressing part; 1122. Hooking part; 113. Slide rail; 114. Guide ramp; 115. Needle pull limiting groove; 116. Ejector tube locking protrusion; 117. Groove ring; 118. Inner slide groove; 119. Guide post;

[0052] 120. Launching spring;

[0053] 130. Needle base; 131. Needle base body; 1311. Guide slot; 1312. Central post; 1313. Guide groove; 1314. Inner protrusion of needle base; 132. Guide needle; 1321. Tip; 1322. Guide groove;

[0054] 140. Needle spring;

[0055] 150. Sliding component; 151. Sliding component body; 152. Outer locking block of the sliding component; 153. Inner locking block of the sliding component; 154. Assembly slot; 155. Assembly strip;

[0056] 160. Sensors;

[0057] 170. Probe mount; 171. Probe mount body; 172. First sensor through hole; 173. Sensor locking part; 174. Assembly part; 1741. Assembly locking point;

[0058] 180. Limiting ring; 181. Limiting ring body; 182. Closed limiting protrusion; 183. Open limiting protrusion; 184. Unlocking area;

[0059] 200. Battery components;

[0060] 210. Battery top cover; 211. Top cover hook edge; 212. Top cover receiving groove; 213. Second sensor through hole; 214. First electrode plate locking point; 215. First electrode plate through hole; 216. Second electrode plate through hole; 217. Ejector tube clamping bar; 2171. Clamping bar protrusion; 218. Top cover securing protrusion;

[0061] 220. Battery bottom cover; 221. Third sensor perforation; 222. First electrode support platform; 223. Second electrode support platform; 224. Second electrode clamping point;

[0062] 230. Battery;

[0063] 240. First electrode plate;

[0064] 250. Second electrode plate;

[0065] 300. Transmitter assembly;

[0066] 310. Transmitter top cover;

[0067] 320. Transmitter base; 321. Base hook groove; 322. Base receiving groove;

[0068] 330. PCBA; 331. Metal spring; 332. Spring contact;

[0069] 340. Sealing ring. Detailed Implementation

[0070] The present invention will now be further described with reference to the accompanying drawings and embodiments:

[0071] like Figures 1 to 24 As shown, the present invention can monitor the subcutaneous tissue fluid of a user, such as blood glucose. To avoid the risks associated with existing sensor-assisted implantation devices, a biosensor-assisted implantation device is proposed, comprising a transmitter assembly 100, a battery assembly 200, and a transmitter assembly 300. The transmitter assembly 100 is used to launch the sensor into the human body via a spring-driven slider 150, and to quickly separate the slider 150 from the sensor by spring-driven retraction. The battery assembly 200 is used to fix the sensor and power the entire device. The transmitter assembly 300 is assembled with the battery assembly 200 and electrically connected to the sensor, transmitting the sensor's monitoring signal to a wireless terminal device.

[0072] In use, the transmitter assembly 100 is first attached to the battery assembly 200, and then the battery assembly 200 is positioned on the human skin. After the sensor is implanted subcutaneously through the transmitter assembly 100, the transmitter assembly 100 and the battery assembly 200 are removed, and the transmitter assembly 300 is attached to the battery assembly 200. In subsequent processes, the transmitter assembly 300 transmits the blood glucose data monitored by the sensor to a wireless terminal device (such as a mobile phone, which connects wirelessly to the transmitter assembly 300 via Bluetooth, WIFI, etc.) for monitoring.

[0073] I. Launching tube assembly

[0074] like Figures 1 to 16As shown, the launch tube assembly 100 includes a launch tube 110, a launch spring 120, a needle holder 130, a needle withdrawal spring 140, and a slider 150. The launch tube 110 provides the foundation for the sensor 160 assisted implantation and needle withdrawal processes; the launch spring 120 provides power for the sensor 160 assisted implantation process and enables rapid implantation; the needle holder 130 positions the sensor 160 and drives it to be implanted; the needle withdrawal spring 140 provides power for the needle holder 130 to withdraw from the needle process; and the slider 150, under the action of the launch spring 120, drives the needle holder 130 and sensor 160 to be implanted and provides support for the needle holder 130 to withdraw from the needle process.

[0075] 1. Catapult

[0076] The ejection tube 110 includes an ejection tube body 111 and an ejection fastener 112 located on the ejection tube body 111. When the sliding member 150 is not ejected, the ejection fastener 112 is engaged with the sliding member 150. Specifically, the ejection fastener 112 includes a pressing part 1121 and a hooking part 1122 located at opposite ends. When assisted implantation is required, the pressing part 1121 is suspended relative to the ejection tube body 111, and the hooking part is engaged with the sliding member 150. After pressing the pressing part 1121, the hooking part is separated from the sliding member 150.

[0077] A limiting ring 180 is fitted around the outer side of the ejection tube body 111. The limiting ring 180 includes a limiting ring body 181 and a closing limiting protrusion 182, an opening limiting protrusion 183, and an unlocking area 184 located on the limiting ring body 181. The unlocking area 184 is located between the opening limiting protrusion 183 and the closing limiting protrusion 182. The closing limiting protrusion 182 and the opening limiting protrusion 183 both protrude from the surface of the limiting ring body 181, making the unlocking area 184 concave relative to the closing limiting protrusion 182 and the opening limiting protrusion 183. When the ejection fastener 112 is in the locked state, the inner surface of the pressing part 1121 abuts against the closing limiting protrusion 182. When the ejection fastener 112 is in the unlocked state, the pressing part 1121 is suspended outside the unlocking area 184. The present invention can lock and unlock the ejector fastener 112 by means of the limiting ring 180, ensuring that there will be no accidental triggering during transportation, and at the same time, it can prevent accidental operation during use and avoid secondary damage.

[0078] Preferably, in order to limit the ejection fastener 112, the ejection tube body 111 of the present invention is provided with a protruding groove ring 117 on the periphery, and the inner side of the limiting ring body 181 is provided with a concave ring corresponding to the groove ring 117. The limiting ring body 181 is engaged with the periphery of the ejection tube body 111 through the cooperation of the concave ring and the groove ring 117.

[0079] To enable the ejection and needle extraction of structures such as the slider 150 and needle holder 130, the ejector tube body 111 is provided with a track to guide the movement of the slider 150, and the slider 150 is provided with a corresponding sliding catch. Specifically, the sliding catch is a protruding slider outer catch block 152 provided on the outside of the slider 150, and the track includes a slide 113 extending vertically along the ejector tube body 111 and a needle extraction limiting groove 115 located at the lower end of the slide 113 and extending laterally. The needle extraction limiting groove 115 and the slide 113 are connected by an inclined guide ramp 114. When the slider 150 is not ejected, the outer locking block 152 of the slider engages with the hook part 1122, so that the slider 150 is engaged with the ejector fastener 112; when the slider 150 is ejected, the outer locking block 152 of the slider slides down along the slide rail 113, and when it slides down to the bottom, it engages with the needle pull-out limiting groove 115, so that the slider 150 will not spring back when the needle seat 130 pulls out the needle and springs back.

[0080] Preferably, in order to enable the slider 150 to be smoothly assembled into the catapult body 111, the inner side of the catapult body 111 is also provided with an inner groove 118, which is aligned with the extension direction of the slide 113, so that the outer locking block 152 of the slider can slide into the slide 113 through the inner groove 118.

[0081] The top of the ejector body 111 is provided with a downward-extending guide post 119, which is used to guide the implantation ejection and needle withdrawal rebound of the needle seat 130, so as to prevent the needle seat 130 from becoming skewed during ejection and rebound, which would affect the implantation quality of the sensor 160 and affect human safety.

[0082] The lower end of the ejector tube body 111 is provided with a protruding ejector tube locking strip 116. The ejector tube body 111 is engaged with the battery assembly 200 through the ejector tube locking strip 116 and is separated after the sensor 160 is implanted.

[0083] 2. Launching spring

[0084] The launching spring 120 is located between the ejection tube 110 and the needle seat 130, with its upper end abutting against the top of the ejection tube 110 and its lower end abutting against the slider 150. The launching spring 120 is used to drive the needle seat 130 and the slider 150 to be ejected along the ejection tube 110.

[0085] During implementation, the launching spring 120 is in a compressed state, which converts the elastic potential energy of the launching spring 120 into the kinetic energy of the slider 150 and the needle holder 130, thereby enabling the sensor 160 to be quickly implanted under the skin of the human body. Furthermore, because the elasticity distribution of the launching spring 120 is more uniform, the slider 150 and the needle holder 130 can be more stable during the ejection process.

[0086] 3. Needle base

[0087] The needle holder 130 is located inside the ejection tube 110 and slides up and down along the ejection tube 110. It includes a needle holder body 131 for driving the sensor 160 to be implanted and for realizing needle withdrawal, and a guide needle 132 located at the lower end of the needle holder 130 for guiding the sensor 160. The lower end of the needle holder body 131 is open, and the top of the inner part of the needle holder body 131 is provided with a downwardly extending central post 1312. The guide needle 132 is located at the bottom end of the central post 1312. The main body of the guide needle 132 is provided with a guide groove 1322, so that the cross-section of the entire guide needle 132 is U-shaped. The vertically extending end of the sensor 160 is fitted into the guide groove 1322, so that the sensor 160 can be implanted under the skin of the human body along with the guide groove 1322. The lower end of the guide needle 132 is provided with a tip 1321, and the tip 1321 is formed by extending forward from the bottom wall of the guide groove 1322. The tip 1321 can pierce the human epidermis, which facilitates rapid implantation.

[0088] In this invention, in cooperation with the guide post 119 inside the ejection tube body 111, the top of the needle seat 130 is provided with a vertically penetrating guide slot 1311. The guide post 119 extends into the guide slot 1311, allowing the needle seat 130 to slide up and down along the guide post 119. Preferably, the needle seat 130 is provided with a vertically extending guide groove 1313 inside. The guide groove 1313 is opposite to the guide slot 1311, allowing the guide post 119 to slide up and down along the guide groove 1313. During the sliding process of the needle seat 130, the guide post 119 is always in contact with the guide groove 1313. With the intersecting position of the guide post 119 and the guide slot 1311, it can be ensured that the needle seat 130 slides in the same orientation, further increasing the stability of the sliding of the needle seat 130.

[0089] In order to achieve synchronous ejection of the needle seat 130 and the slider 150, the bottom of the central column 1312 in this invention is provided with a needle seat inner protrusion 1314. The function of the needle seat inner protrusion 1314 is as follows: during the assembly and ejection of the needle seat 130 and the slider 150, the needle seat inner protrusion 1314 engages with the slider 150, so that the needle seat 130 and the slider 150 are engaged. During the rebound of the needle seat 130, the needle seat inner protrusion 1314 separates from the slider 150.

[0090] 4. Needle pull spring

[0091] The needle-pulling spring 140 is located inside the needle holder 130. Its top abuts against the top of the needle holder 130, and its bottom abuts against the slider 150. The needle-pulling spring 140 is in a compressed state and is used to drive the needle holder 130 and the sensor 160 to rebound.

[0092] During the implementation process, since the sliding member 150 is limited by the needle-pulling limiting groove 115, the bottom position of the needle-pulling spring 140 remains unchanged, and its top end provides a rebound force to the inner top end of the needle seat 130. After the needle seat 130 separates from the sliding member 150, it rebounds under the action of the needle-pulling spring 140.

[0093] 5. Sliding parts

[0094] The slider 150 is located inside the ejector tube 110 and slides up and down along the ejector tube 110. The slider 150 engages with the needle seat 130 and can rotate relative to the needle seat 130, thereby realizing the linkage and rebound of the slider 150 and the needle seat 130. The slider 150 in this invention includes a slider body 151, which includes a hollow cylindrical outer side wall and an inner side wall. The cavity between the outer side wall and the inner side wall is used to match the bottom of the needle seat 130. The slider outer locking block 152 is located outside the outer side wall of the slider body 151.

[0095] Corresponding to the inner protrusion 1314 in the needle holder 130, the sliding member 150 is provided with a corresponding inner locking block 153. When the needle holder 130 and the sliding member 150 are assembled and in the ejection state, the inner locking block 153 of the sliding member is engaged with the inner protrusion 1314 of the needle holder 130. When the needle holder is in the springback state, the inner locking block 153 of the sliding member is misaligned and separated from the inner protrusion 1314 of the needle holder. In the specific implementation process, when assembling the slider 150 and the needle holder 130, the slider 150 slides into the slideway 113 through the interaction between the slider outer locking block 152 and the inner slide groove 118 of the ejector tube body 111. At this time, the slider inner locking block 153 and the needle holder inner protrusion 1314 are opposite to and locked together. Since the needle holder 130 does not rotate circumferentially, the slider 150 will rotate circumferentially under the action of the guide ramp 114 after ejection and slide into the needle withdrawal limiting groove 115. At this time, the slider inner locking block 153 and the needle holder inner protrusion 1314 are misaligned and separated.

[0096] Furthermore, since the needle holder 130 only guides the implantation of the sensor 160, the slider 150 also engages with the sensor 160, enabling the slider 150 to drive the sensor 160 into the ground, thereby providing power for the implantation process of the sensor 160. The bottom of the slider 150 of this invention is also provided with an assembly groove 154 through which the sensor 160 passes, and the side wall of the assembly groove 154 is provided with a protruding assembly clip 155 for engaging the sensor 160.

[0097] Since the sensor 160 is made of a soft material, it is engaged with the slider 150 via the probe holder 170. After implantation, the probe holder 170 is assembled within the battery assembly 200 and the transmitter assembly 300, enabling the sensor 160 to be positioned. The probe holder 170 includes a probe holder body 171 and a first sensor through-hole 172 that passes through the probe holder body 171 and allows the sensor 160 to pass through. The vertically extending end of the sensor 160 passes through the first sensor through-hole 172. Preferably, a plurality of sensor retaining parts 173 are also provided above the probe holder body 171, with the top of the sensor 160 confined within the range of the sensor retaining parts 173. This allows the probe holder 170 to provide a stable limiting base for the sensor 160, preventing the sensor 160 from shaking and affecting the implantation effect.

[0098] In addition, the upper end of the probe base body 171 is provided with a protruding assembly part 174, and the assembly part 174 is provided with an assembly locking point 1741. When the sliding member 150 and the sensor 160 are in the ejection state, the probe base 170 is engaged with the assembly locking strip 155 through the assembly locking point 1741. When the probe base 170 is in the spring-back state, the assembly locking point 1741 and the assembly locking strip 155 are misaligned and separated.

[0099] II. Battery Components

[0100] like Figures 17 to 22 As shown, the battery assembly 200 provides a positioning base for the sensor 160 and probe mount 170, and provides power to the entire biosensor-assisted implantation device. The battery assembly 200 includes a battery top cover 210, a battery bottom cover 220, a battery 230, a first electrode plate 240, and a second electrode plate 250. One end of the first electrode plate 240 contacts the battery 230, and the other end passes through the battery top cover 210 and is electrically connected to the transmitter assembly 300. One end of the second electrode plate 250 contacts the battery 230, and the other end passes through the battery top cover 210 and is electrically connected to the transmitter assembly 300. In this embodiment, the first electrode plate 240 is a positive electrode plate, and the second electrode plate 250 is a negative electrode plate.

[0101] To facilitate the assembly of the first electrode plate 240 and the second electrode plate 250, and to achieve the positioning of the first electrode plate 240 and the second electrode plate 250, the top inner side of the battery cover 210 is provided with a first electrode plate slot for positioning the first electrode plate 240, and a first electrode plate locking point 214 for fastening the first electrode plate 240 is provided in the first electrode plate slot. The bottom inner side of the battery cover 220 is provided with a second electrode plate slot for positioning the second electrode plate 250, and a second electrode plate locking point 224 for fastening the second electrode plate 250 is provided in the second electrode plate slot.

[0102] Additionally, the battery top cover 210 has a first electrode plate through-hole 215 for accommodating the first electrode plate 240 and a second electrode plate through-hole 216 for accommodating the second electrode plate 250. The battery bottom cover 220 has a first electrode plate support platform 222 for supporting the first electrode plate 240 and a second electrode plate support platform 223 for supporting the second electrode plate 250. The first electrode plate support platform 222 corresponds to the position of the first electrode plate through-hole 215, and the second electrode plate support platform 223 corresponds to the position of the second electrode plate through-hole 216. After assembly, the end of the first electrode plate 240 is supported on the first electrode plate support platform 222 and exposed through the first electrode plate through-hole 215, and the end of the second electrode plate 250 is supported on the second electrode plate support platform 223 and exposed through the second electrode plate through-hole 216.

[0103] The battery assembly 200 can also be used to position the sensor 160 and the probe holder 170. Specifically: the upper surface of the battery cover 210 is provided with a downwardly recessed cover receiving groove 212, which is used to accommodate and fix the probe holder 170; and the battery cover 210 is provided with a second sensor through hole 213 that runs vertically through the battery, and the battery cover 220 is provided with a third sensor through hole 221 that runs vertically through the battery. The vertical extension end of the sensor 160 passes through the second sensor through hole 213 and the third sensor through hole 221 and is then implanted into the human skin.

[0104] During the implantation of sensor 160, battery assembly 200 provides positioning; therefore, battery assembly 200 also needs to be engaged with launch tube assembly 100. Specifically, the battery cover 210 of battery assembly 200 has an arc-shaped groove running vertically through it, and a protruding cover retaining strip 218 is provided at the arc-shaped groove. When battery assembly 200 and launch tube 110 are assembled, launch tube retaining strip 116 passes through the arc-shaped groove and engages with cover retaining strip 218. After sensor 160 is implanted, the launch tube 110 is rotated to disengage launch tube retaining strip 116 from cover retaining strip 218. Preferably, the inner side of the arc groove is provided with an elastic ejector clamping bar 217, and the outer end of the ejector clamping bar 217 is provided with a protruding clamping bar protrusion 2171. The clamping bar protrusion 2171 is used to limit the ejector clamping protrusion 116, so that the ejector 110 and the battery cover 210 are more firmly limited and prevented from falling off.

[0105] The battery cover 210 is also provided with a cover hook edge 211 for engaging with the transmitter assembly 300. The transmitter base 320 of the transmitter assembly 300 is provided with a base hook groove 321 corresponding to the position of the cover hook edge 211. The cover hook edge 211 is connected to the base hook groove 321, so that the battery assembly 200 and the transmitter assembly 300 are engaged.

[0106] The battery assembly 200 also includes a skin-friendly adhesive tape. One side of the tape is connected to the lower surface of the battery cover 220, and the other side is used to contact the human skin, so that the battery assembly 200 can be tightly attached to the human body surface.

[0107] III. Transmitter Components

[0108] like Figures 17 to 19 , Figure 23 , Figure 24 As shown, the transmitter assembly 300 includes a transmitter cover 310, a transmitter base 320, and a PCBA 330 located between the transmitter cover 310 and the transmitter base 320. The PCBA 330 has spring contacts 332 for contacting and connecting with metal spring contacts 331. The metal spring contacts 331 are injection molded to the transmitter base 320, and the electrode spring contacts in the metal spring contacts 331 contact the first electrode sheet 240 and the second electrode sheet 250 within the battery assembly 200. Additionally, the PCBA 330 can communicate with a user's wireless terminal device (such as via Bluetooth) to send the detection results from the sensor 160 to the wireless terminal device for data analysis and display. Since the functions of the PCBA 330 in receiving data from the sensor 160 and sending data to the wireless terminal device are known technologies in the art, this invention does not make any improvements, and therefore the specific implementation circuit of the PCBA 330 will not be described in detail.

[0109] Corresponding to the position of the upper cover receiving groove 212 in the battery assembly 200, the lower side of the transmitter base 320 is provided with an upwardly recessed base receiving groove 322. The base receiving groove 322 is used to accommodate the fixed probe seat 170, so that the probe seat 170 is positioned in the space enclosed by the upper cover receiving groove 212 and the base receiving groove 322.

[0110] Preferably, a sealing ring 340 is provided on the lower side of the transmitter base 320, and the transmitter base 320 is sealed to the battery assembly 200 through the sealing ring 340. Specifically, the bottom of the transmitter base 320 is provided with a recessed sealing groove, and the sealing ring 340 is embedded in the sealing groove; the upper surface of the battery cover 210 is provided with a protruding ring, which extends into the sealing groove and abuts against the sealing ring 340, achieving a good sealing effect and avoiding affecting the detection sensitivity of the sensor 160 during long-term monitoring.

[0111] The assembly process of this invention is as follows:

[0112] 1. Assembly of battery module 200

[0113] Stick one side of the skin-friendly tape to the bottom of the battery cover 220;

[0114] The second electrode 250 is fixed in the second electrode slot of the battery lower cover 220;

[0115] Install a button battery so that the negative terminal of the battery comes into contact with the second electrode plate 250;

[0116] The first electrode piece 240 is fixed in the first electrode piece slot of the battery cover 210;

[0117] Cover the battery with the top cover 210 so that the positive terminal of the battery comes into contact with the first electrode plate 240.

[0118] 2. Assembly of transmitter assembly 300

[0119] Secure the sealing ring 340 into the sealing groove of the transmitter base 320;

[0120] Place PCBA330 inside transmitter base 320 and place transmitter top cover 310 on transmitter base 320.

[0121] 3. Assembly of the launch tube assembly 100

[0122] The limiting ring 180 is assembled from the top of the ejector tube body 111 onto the groove ring 117, and its direction is adjusted until the limiting protrusion 182 and the pressing part 1121 are engaged.

[0123] Place the launching spring 120 inside the launching tube body and the needle extraction spring 140 inside the needle holder body 131. When installing the needle extraction spring 140, avoid contact between the needle extraction spring 140 and the guide needle 132 to prevent damage to the guide needle 132 and affect the assembly and implantation effect.

[0124] Cover the bottom of the needle holder 130 with the slider 150, press the slider 150 so that the inner locking block 153 of the slider is engaged with the inner protrusion 1314 of the needle holder, thereby compressing the needle pull spring 140.

[0125] Place the needle holder 130 together with the slider 150 inside the catapult body 111 and the launching spring 120. Press the slider 150 so that the outer locking block 152 of the slider slides into the slide 113 along the inner slide groove 118. Continue to press the slider 150 and compress the launching spring 120 until the outer locking block 152 of the slider engages with the hook part 1122 of the catapult fastener 112.

[0126] The sensor 160 is mounted on the probe holder 170 such that the vertical extension end of the sensor 160 passes through the first sensor through hole 172.

[0127] The guide pin 132 is passed through the first sensor through hole 172, so that the vertical extension end of the sensor 160 is placed in the guide groove 1322, and then the assembly point 1741 of the probe seat 170 is engaged with the assembly strip 155 of the slider 150.

[0128] 3. Assembly of battery assembly 200 and launch tube assembly 100

[0129] The battery assembly 200 is placed on the underside of the launch tube assembly 100, such that the guide pin 132, together with the vertical extension end of the sensor 160, passes through the second sensor through hole 213.

[0130] Press or rotate the battery assembly 200 so that the ejector tube locking protrusion 116 passes through the arc-shaped groove and engages with the upper cover locking protrusion 218, thus completing the assembly of the battery assembly 200 and the launch tube assembly 100.

[0131] The present invention also provides a method for implementing the biosensor-assisted implantation device, specifically including:

[0132] S1, Unlock

[0133] Initially, all components are located within sterile packaging.

[0134] Open the sterile packaging, peel off the protective layer of the skin-friendly tape, and align the battery assembly 200 with the human body part where the sensor 160 needs to be implanted; rotate the limiting ring 180 so that the pressing part 1121 of the ejector fastener 112 is adjusted to the unlocking area 184.

[0135] S2, Implantation

[0136] S21, Press the pressing part 1121 of the ejector fastener 112 to unlock the hook part 1122 of the ejector fastener 112 from the outer locking block 152 of the sliding member;

[0137] S22, the slider 150, together with the needle seat 130 and the sensor 160, are pressed down rapidly under the elastic thrust of the launching spring 120, and the vertical extension end of the sensor 160 is punctured into the subcutaneous tissue under the guidance of the guide needle 132.

[0138] S23. When the slider 150 slides down to the lowest point, the outer locking block 152 of the slider moves along the track of slide 113-guide ramp 114-needle extraction limiting groove 115 and rotates at the guide ramp 114 and needle extraction limiting groove 115. At the same time, the inner locking block 153 of the slider separates from and unlocks the protrusion 1314 inside the needle seat, and the assembly locking strip 155 of the slider 150 separates from and unlocks the assembly locking point 1741 of the probe seat 170.

[0139] S24, the needle holder 130 rebounds quickly under the elastic thrust of the needle-pulling spring 140. At this time, the sliding member 150 will not rebound under the elastic force of the launching spring 120 and the limiting action of the needle-pulling limiting groove 115.

[0140] The implantation process is extremely short, enabling rapid implantation and needle removal, which can effectively reduce the user's pain. Furthermore, thanks to the positioning function of the ejector tube 110 and the battery assembly 200, the implantation position is accurate and will not deviate, thus minimizing the risk of secondary damage to the human body.

[0141] S3, Power Supply

[0142] S31. Rotate the ejector tube body 111 to separate the ejector tube locking protrusion 116 from the upper cover locking protrusion 218 of the battery assembly 200 and remove the ejector tube body 111.

[0143] S32. The transmitter assembly 300 is attached to the battery assembly 200, such that the base hook groove 321 of the transmitter base 320 is hooked to the top cover hook edge 211 of the battery top cover 210. At this time, the top of the probe seat 170 is sealed between the transmitter assembly 300 and the battery assembly 200, and the battery assembly 200 supplies power to the PCBA 330 inside the transmitter assembly 300.

[0144] S4, Use

[0145] Connect the PCBA330 to a wireless terminal device (e.g., via Bluetooth) and activate the transmitter to start working. The data collected by the sensors 160 and PCBA330 will be sent to the wireless terminal device.

[0146] This invention employs an internal spring and a self-unlocking and releasing mechanism, enabling rapid implantation and automatic needle withdrawal without significant pain for the user. Furthermore, this invention requires no external force from the user, allowing children and the elderly to use it independently under the guidance of a guardian. The entire process is quick, accurate, and unlikely to deviate, preventing secondary injury to the user. In addition, this invention incorporates a safety device and a fixing buckle to ensure that it will not be accidentally triggered during transportation or in the hands of the consumer.

[0147] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0148] The present invention has been described above with reference to the accompanying drawings. Obviously, the implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A biosensor-assisted implantation device, characterized in that, include: The launch tube assembly is used to launch a sensor toward the human body by a spring-driven slider and to quickly separate the slider from the sensor by a spring-driven pull-back. The launch tube assembly includes a launch tube, a launch spring, a needle seat, a needle withdrawal spring, and a sliding member. The needle seat and the sliding member are both located inside the launch tube and slide up and down along the launch tube. The sliding member is engaged with the needle seat and can rotate relative to it. The sliding member is also engaged with a sensor, and the vertical extension end of the sensor is fitted inside the guide needle at the bottom of the needle seat. The launching spring is located between the ejection tube and the needle holder, with its upper end abutting the top of the ejection tube and its lower end abutting the sliding member. The launching spring is used to drive the needle holder and the sliding member to be ejected along the ejection tube. The needle-pulling spring is located inside the needle holder, with its top abutting against the top of the needle holder and its bottom abutting against the sliding member; the needle-pulling spring is used to drive the needle holder to rebound. The ejection tube includes an ejection tube body and an ejection fastener located on the ejection tube body. The ejection fastener includes a pressing part and a hooking part located at opposite ends. The pressing part is suspended relative to the ejection tube body. When the ejection tube is not launched, the hooking part is engaged with the sliding member. The main body of the catapult is provided with a track to guide the movement of the sliding component. The track includes a slide rail extending vertically along the main body of the catapult and a needle-pulling limiting groove located at the lower end of the slide rail and extending laterally. Pressing the pressing part can unlock and trigger the launching spring to drive the sliding part, needle seat and sensor to be implanted into the human body; after implantation, the sliding part slides down the slide of the ejector tube and gets stuck in the needle withdrawal limiting groove. By rotating relative to the needle seat, the two locking structures are misaligned and separated, and the needle withdrawal spring drives the needle seat to rebound to realize needle withdrawal. A battery assembly is used to secure the sensor and power the entire device. The transmitter assembly is assembled with the battery assembly and electrically connected to the sensor, and transmits the monitoring signal of the sensor to the wireless terminal device.

2. The biosensor-assisted implantation device according to claim 1, characterized in that, The outer side of the ejection tube body is fitted with a limiting ring. The limiting ring includes a limiting ring body and a closing limiting protrusion and an unlocking area located on the limiting ring body. The inner surface of the pressing part abuts against the closing limiting protrusion, or the pressing part is suspended outside the unlocking area.

3. The biosensor-assisted implantation device according to claim 1, characterized in that, The lower end of the ejection tube body is provided with a protruding ejection tube locking strip, and the battery cover of the battery assembly is provided with an arc-shaped groove that runs through the top and bottom, and the arc-shaped groove is provided with a protruding cover locking strip, which engages with the ejection tube locking strip.

4. The biosensor-assisted implantation device according to claim 1, characterized in that, The top of the ejection tube body is provided with a downward-extending guide post, and the top of the needle seat is provided with a guide slot that runs vertically through the needle. The guide post extends into the guide slot, allowing the needle seat to slide up and down along the guide post.

5. The biosensor-assisted implantation device according to claim 1, characterized in that, The needle hub includes a needle hub body for driving sensor implantation and realizing needle withdrawal, and a guide needle located at the lower end of the needle hub for guiding the sensor. The lower end of the needle hub body is open, and the top of the needle hub body is provided with a downwardly extending central column. The bottom of the central column is provided with a needle hub inner protrusion. The sliding member is provided with a sliding member inner locking block corresponding to the needle hub inner protrusion. When the needle hub and the sliding member are in the ejection state, the sliding member inner locking block is engaged with the needle hub inner protrusion. When the needle hub is in the springback state, the sliding member inner locking block is misaligned and separated from the needle hub inner protrusion.

6. The biosensor-assisted implantation device according to claim 1, characterized in that, The bottom of the slider is provided with an assembly groove for the sensor to pass through, and the side wall of the assembly groove is provided with a protruding assembly clip for the sensor to engage.

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