An analyte monitoring transmitter and analyte monitoring device

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, disclose a kind of analyte monitoring transmitter and analyte monitoring device, it includes shell assembly, sensor, implant needle assembly and needle cap.Housing assembly is equipped with through hole;Sensor includes implant end and signal connection end, signal connection end is located in shell assembly;Implant needle assembly includes implant needle, needle handle and needle pedestal, needle pedestal is located in through hole;Needle cap includes cap body and connecting seat, connecting seat is located in through hole, for with needle pedestal detachably connected;Implant needle and implant end are all arranged in through hole and stretch out on the same side of shell assembly, needle cap cover is arranged in implant needle and implant end;Implant needle assembly and needle cap are located on both sides of through hole, realize the protection to implant needle and the implant end of sensor, solve the secondary pollution problem after sterilization of implant needle and the implant end of sensor, ensure sterilization effect.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an analyte monitoring transmitter and analyte monitoring device. Background Technology

[0002] The working principle of an analyte monitoring transmitter is as follows: a sensor is implanted subcutaneously through a needle. The implanted end of the sensor reacts with the interstitial fluid to generate an electrical signal, which is then fed back to the receiver to obtain data on the target analyte in the body. Taking a blood glucose meter as an example, the implanted end of the sensor reacts with glucose in the interstitial fluid to monitor blood glucose levels.

[0003] The analyte monitoring transmitter includes an implanted needle, a sensor, and a needle cap. The needle cap is detachably connected to the needle base on the implanted needle and is used to cover the implanted ends of the needle and sensor. The needle cap and needle base form a receiving space to protect the implanted ends of the needle and sensor. However, during assembly and transportation, the needle base and needle cap are prone to loosening due to external forces, leading to secondary contamination of the implanted ends of the needle and sensor after sterilization, thus affecting the sterilization effect. Utility Model Content

[0004] The purpose of this invention is to provide an analyte monitoring transmitter and analyte monitoring device to protect the implantation ends of the implantation needle and sensor, solve the problem of secondary contamination after sterilization of the implantation ends of the implantation needle and sensor, and ensure the sterilization effect.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An analyte monitoring transmitter, comprising:

[0007] The housing assembly has a through hole;

[0008] The sensor includes an implantable end and a signal connection end, wherein the signal connection end is disposed within the housing assembly;

[0009] An implantation needle assembly includes an implantation needle, a needle handle, and a needle base, wherein the needle base is disposed within the through hole;

[0010] A needle cap includes a cap body and a connecting seat, wherein the connecting seat is disposed in the through hole and is used for detachable connection with the needle base;

[0011] The implantation needle and the implantation end both pass through the through hole and extend out of the same side of the housing assembly, and the needle cap covers the implantation needle and the implantation end; the implantation needle assembly and the needle cap are located on both sides of the through hole.

[0012] In some possible implementations, the connecting seat has a through hole, and a limiting platform is provided inside the through hole; the needle base has a limiting surface and a limiting groove in its circumference, and when the limiting surface faces the limiting platform, the needle base can pass through the limiting platform into the through hole; the limiting platform rotates around the needle base to limit the limiting platform within the limiting groove, thereby connecting the needle base and the connecting seat; the implantation needle and the implantation end both pass through the through hole.

[0013] In some possible implementations, the connector has a first slot and a second slot that communicate with each other and are both connected to the through hole. The first slot extends along the length of the connector and the second slot extends along the circumference of the connector. The sensor can pass through the first slot and the second slot. When the limiting surface faces the limiting platform, the sensor passes through the first slot. When the limiting platform is limited by the limiting slot, the sensor passes through the second slot.

[0014] In some possible implementations, the housing assembly is provided with a marker along the circumference of the analyte monitoring transmitter, and the implantation end is positioned directly opposite the marker.

[0015] In some possible implementations, the housing assembly further includes a first housing and a second housing, a mounting base and a sealing ring, the inner side of the second housing is connected to the mounting base, the sealing ring and the mounting base form the through hole, the sealing ring passes through the first housing, the two ends of the sealing ring are respectively sealed to the first housing and the mounting base, the implantation needle assembly is sealed to the sealing ring, and the needle cap is sealed to one side of the second housing.

[0016] In some possible implementations, the sensor passes through the sealing ring and the mounting base.

[0017] In some possible implementations, a circuit board disposed within the housing assembly is also included, the circuit board being connected to the signal connection terminal.

[0018] In some possible implementations, an annular platform protrudes from the periphery of the cap body, and a seal is provided between the annular platform and the housing assembly.

[0019] An analyte monitoring device includes an analyte monitoring transmitter as described in any of the preceding claims.

[0020] The beneficial effects of this utility model are:

[0021] This utility model provides an analyte monitoring transmitter and analyte monitoring device. The needle cap and needle base are detachably connected, with the needle cap covering the implantation needle and implantation end to provide protection. Because the implantation needle assembly and needle cap are located on both sides of the through hole, forming a receiving space, and the connection between the needle base and the connecting seat is located within this receiving space, further sealing and protection of the implantation needle and implantation end is achieved. This provides dual protection for the implantation needle and implantation end. Even if the needle cap and needle base loosen due to external forces during transportation, the receiving space can still protect the implantation needle and implantation end, preventing secondary contamination and improving the reliability of the protection, thus ensuring sterilization effectiveness. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of an analyte monitoring transmitter provided in a specific embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of an analyte monitoring transmitter without a first housing, provided in a specific embodiment of this utility model;

[0024] Figure 3 This is an exploded view of the analyte monitoring transmitter provided in a specific embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of a needle cap provided in a specific embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of another needle cap provided by a specific embodiment of this utility model;

[0027] Figure 6 This is a top view of the analyte monitoring transmitter provided in a specific embodiment of this utility model;

[0028] Figure 7 yes Figure 6 AA section view;

[0029] Figure 8 yes Figure 6 BB cross-sectional view.

[0030] In the picture:

[0031] 1. Implant needle assembly; 10. Implant needle; 11. Needle handle; 12. Needle base; 121. Limiting surface; 122. Limiting groove;

[0032] 3. Sensor; 31. Implantation end; 32. Signal connection end;

[0033] 5. Needle cap; 51. Connecting seat; 52. Second slot; 53. First slot; 54. Limiting platform; 55. Annular platform; 56. Seal; 57. Cap body; 58. Perforation;

[0034] 6. Housing assembly; 61. First housing; 62. Second housing; 63. Through hole; 64. Mark; 65. Sealing ring; 66. Mounting base;

[0035] 7. Circuit board. Detailed Implementation

[0036] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal connection of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above term in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] like Figures 1-8As shown, this embodiment provides an analyte monitoring transmitter, which includes a housing assembly 6, a sensor 3, an implanted needle assembly 1, and a needle cap 5. The housing assembly 6 has a through hole 63. The sensor 3 includes an implanted end 31 and a signal connection end 32, with the signal connection end 32 located within the housing assembly 6. The implanted needle assembly 1 includes an implanted needle 10, a needle handle 11, and a needle base 12, with the needle base 12 located within the through hole 63. The implanted needle 10 and the implanted end 31 both pass through the through hole 63 and extend from the same side of the housing assembly 6. The needle cap 5 includes a cap body 57 and a connecting seat 51, with the connecting seat 51 located within the through hole 63 for detachable connection to the needle base 12. The needle cap 5 covers the implanted needle 10 and the implanted end 31. The implanted needle assembly 1 and the needle cap 5 form accommodating spaces on both sides of the through hole 63. Furthermore, the second housing 62, the implanted needle assembly 1 and the needle cap 5 form a sealed space through the sealing ring 65 and the seal 56, and the connection between the needle base 12 and the connecting seat 51 is located within the sealed space.

[0040] The needle cap 5 is detachably connected to the needle base 12, covering the implantation needle 10 and the implantation end 31 to provide protection. Since the connection between the needle base 12 and the connecting seat 51 is located within the accommodating and sealing spaces, the sealing protection of the implantation needle 10 and the implantation end 31 is further enhanced, achieving dual protection. Even if the needle cap 5 and the needle base 12 loosen due to external forces during transportation, the accommodating space can still protect the implantation needle 10 and the implantation end 31, preventing secondary contamination and improving the reliability of the protection, thus ensuring sterilization effectiveness.

[0041] In the prior art, the needle base 12 protrudes from the bottom of the housing assembly 6. During needle insertion, the unevenness of the bottom can easily cause tilting, affecting the lifespan of the sensor 3 and the accuracy of the implantation depth (e.g., too shallow). By positioning the needle base 12 within the through hole 63, i.e., not protruding from the outside of the housing assembly 6, the problem of protrusions and unevenness on the outer surface of the housing assembly 6 is avoided. Therefore, the tilting problem during needle insertion is solved, thereby ensuring the lifespan of the sensor 3 and the accuracy of the implantation depth.

[0042] The connecting seat 51 has a through hole 58, and a limiting platform 54 is provided inside the through hole 58. The needle base 12 has a limiting surface 121 and a limiting groove 122 around its circumference. When the limiting surface 121 faces the limiting platform 54, the needle base 12 can pass through the limiting platform 54 into the through hole 58. The limiting platform 54 rotates around the needle base 12 so that the limiting platform 54 is limited in the limiting groove 122, thereby connecting the needle base 12 and the connecting seat 51. The implantation needle 10 and the implantation end 31 are both inserted through the through hole 58. During assembly, first, the limiting surface 121 is aligned with the limiting platform 54, and the connecting seat 51 of the needle cap 5 is inserted into the through hole 63. During this process, the needle base 12 extends into the through hole 58. After reaching a preset position, for example, the end face of the connecting seat 51 abuts against the needle handle 11 of the implantation needle assembly 1 for connection with the needle base 12, and the needle cap 5 no longer moves. Next, rotate the needle cap 5 so that the limiting platform 54 enters the limiting groove 122, thereby connecting the needle base 12 and the connecting seat 51, that is, connecting the needle cap 5 and the implantation needle assembly 1. This connection method effectively prevents loosening between the needle cap 5 and the implantation needle assembly 1 due to axial force, improving the protection of the implantation needle 10 and the implantation end 31. To remove the needle cap 5, rotate it so that the limiting surface 121 faces the limiting platform 54, and then pull the needle cap 5 out of the through hole 63.

[0043] The connecting seat 51 has a first slot 53 and a second slot 52 that are connected to each other and are connected to the through hole 58. The first slot 53 extends along the length of the connecting seat 51, and the second slot 52 extends along the circumference of the connecting seat 51. The second slot 52 can be located to the left or right of the first slot 53. The sensor 3 can pass through the first slot 53 and the second slot 52. When the limiting surface 121 faces the limiting platform 54, the sensor 3 passes through the first slot 53. When the limiting platform 54 is limited by the limiting groove 122, the sensor 3 passes through the second slot 52. The first slot 53 and the second slot 52 are designed to avoid damage to the sensor 3 during the rotation of the needle cap 5, thus protecting the sensor 3 and improving the accuracy of the monitoring results.

[0044] The housing assembly 6 is provided with a mark 64 along the circumference of the analyte monitoring transmitter. The implantation end 31 is positioned directly opposite the mark 64 to facilitate identification of the sensor 3's location and to facilitate alignment of the limiting stage 54 and the limiting surface 121, thereby facilitating the removal and installation of the needle cap 5. Exemplarily, the housing assembly 6 forms its tip by its own shape, thus serving as the mark 64. In other embodiments, the mark 64 may also be formed by additionally providing an identification structure, without limitation.

[0045] The housing assembly 6 also includes a first housing 61, a second housing 62, a mounting base 66, and a sealing ring 65. The mounting base 66 is connected to the inner side of the second housing 62. The sealing ring 65 and the mounting base 66 form a through hole 63. The sealing ring 65 passes through the first housing 61, and its two ends are respectively sealed to the first housing 61 and the mounting base 66. The implanted needle assembly 1 is sealed to the sealing ring 65, and the needle cap 5 is sealed to one side of the second housing 62. Optionally, the mounting base 66 and the second housing 62 are integrally formed to ensure the reliability and sealing of the connection between them. Optionally, the mounting base 66 has a step that matches the end face of the sealing ring 65 facing each other, increasing the contact area between them and improving the sealing effect. The through hole 63 is formed by the sealed connection between the first housing 61, the second housing 62, the mounting base 66, and the sealing ring 65, further ensuring the sealing of the sealing space. The needle shank 11 and the needle base 12 are both sealed to the sealing ring 65.

[0046] The cap body 57 has an annular platform 55 protruding from its periphery, and a sealing element 56 is provided between the annular platform 55 and the housing assembly 6. Optionally, a sealing element 56, such as a sealing ring, is provided between the annular platform 55 and the outer surface of the second housing 62, thereby realizing a sealed connection between the cap body 57 and the second housing 62, that is, a sealed connection between the needle cap 5 and the housing assembly 6.

[0047] The sensor 3 is inserted through the sealing ring 65 and the mounting base 66. During assembly, the mounting base 66 is placed on the second housing 62. The sensor 3 is installed first, and then the sealing ring 65 is installed, so that the implantation end 31 of the sensor 3 can enter the through hole 63, which facilitates assembly.

[0048] The analyte monitoring transmitter also includes a circuit board 7 located inside the housing assembly 6. The circuit board 7 is connected to the signal connection terminal 32 and is used to communicate with an external receiver, for example, via a wired connection or a wireless connection such as Bluetooth, so as to feed back the electrical signal generated by the sensor 3 to the receiver and obtain the target analyte data in the body.

[0049] After the implantation needle assembly 1, the second housing 62, the mounting base 66, the sensor 3 and the sealing ring 65 are assembled to form a sealing assembly, the circuit board 7 and the first housing 61 are then assembled onto the sealing assembly.

[0050] This embodiment also provides an analyte monitoring device, including the analyte monitoring transmitter as described above. By ensuring the sterilization effect of the analyte monitoring transmitter, the reliability of the analyte monitoring device is improved.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An analyte monitoring transmitter, characterized in that, include: The housing assembly (6) has a through hole (63); The sensor (3) includes an implantation end (31) and a signal connection end (32), wherein the signal connection end (32) is disposed within the housing assembly (6); The implantation needle assembly (1) includes an implantation needle (10), a needle handle (11) and a needle base (12), wherein the needle base (12) is disposed within the through hole (63); The needle cap (5) includes a cap body (57) and a connecting seat (51), wherein the connecting seat (51) is disposed in the through hole (63) and is used to detachably connect with the needle base (12); The implantation needle (10) and the implantation end (31) are both inserted through the through hole (63) and extend out of the same side of the housing assembly (6). The needle cap (5) covers the implantation needle (10) and the implantation end (31). The implantation needle assembly (1) and the needle cap (5) are located on both sides of the through hole (63).

2. The analyte monitoring transmitter according to claim 1, characterized in that, The connecting seat (51) is provided with a through hole (58), and a limiting platform (54) is provided inside the through hole (58); the needle base (12) is provided with a limiting surface (121) and a limiting groove (122) in the circumferential direction. When the limiting surface (121) faces the limiting platform (54), the needle base (12) can pass through the limiting platform (54) into the through hole (58); the limiting platform (54) rotates around the needle base (12) so that the limiting platform (54) is limited in the limiting groove (122), thereby connecting the needle base (12) and the connecting seat (51); the implantation needle (10) and the implantation end (31) are both inserted through the through hole (58).

3. The analyte monitoring transmitter according to claim 2, characterized in that, The connecting seat (51) is provided with a first slot (53) and a second slot (52) that are connected to each other and are connected to the through hole (58). The first slot (53) extends along the length direction of the connecting seat (51), and the second slot (52) extends along the circumference of the connecting seat (51). The sensor (3) can pass through the first slot (53) and the second slot (52). When the limiting surface (121) faces the limiting platform (54), the sensor (3) passes through the first slot (53). When the limiting platform (54) is limited to the limiting slot (122), the sensor (3) passes through the second slot (52).

4. The analyte monitoring transmitter according to claim 3, characterized in that, The housing assembly (6) is provided with a mark (64) along the circumference of the analyte monitoring transmitter, and the implantation end (31) is positioned opposite the mark (64).

5. The analyte monitoring transmitter according to claim 1, characterized in that, The housing assembly (6) further includes a first housing (61), a second housing (62), a mounting base (66), and a sealing ring (65). The inner side of the second housing (62) is connected to the mounting base (66). The sealing ring (65) and the mounting base (66) form the through hole (63). The sealing ring (65) passes through the first housing (61). The two ends of the sealing ring (65) are respectively sealed to the first housing (61) and the mounting base (66). The implantation needle assembly (1) is sealed to the sealing ring (65). The needle cap (5) is sealed to one side of the second housing (62).

6. The analyte monitoring transmitter according to claim 5, characterized in that, The sensor (3) is inserted through the sealing ring (65) and the mounting base (66).

7. The analyte monitoring transmitter according to claim 1, characterized in that, It also includes a circuit board (7) disposed within the housing assembly (6), the circuit board (7) being connected to the signal connection terminal (32).

8. The analyte monitoring transmitter according to claim 1, characterized in that, The cap body (57) has an annular platform (55) protruding from its periphery, and a sealing element (56) is provided between the annular platform (55) and the housing assembly (6).

9. An analyte monitoring device, characterized in that, Includes the analyte monitoring transmitter as described in any one of claims 1-8.

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