Emitter assembly and detection assembly

Abstract

The utility model discloses an emitter assembly and a detection assembly, and the emitter assembly comprises an emitter which comprises a housing and a detection assembly, the housing is provided with a housing hole channel which penetrates through the housing along a first direction, and the detection assembly comprises a detection needle which protrudes out of the housing along the first direction from the housing hole channel; the needle assisting assembly comprises a needle head and a protective shell which are arranged on the two sides of the shell in the first direction, the needle head and the protective shell are detachably connected in the shell hole channel, and when the needle head and the protective shell are oppositely connected, the needle head and the protective shell are limited by the shell in the first direction. According to the emitter assembly, through the needle head and the protective shell which are oppositely combined and locked in the hole channel of the shell, sealing and fixing of key parts of the emitter assembly can be achieved in a simple mode, the production efficiency is improved, and the use difficulty is reduced.

Description

Technical Field

[0001] This disclosure generally relates to the field of medical device technology. More specifically, this disclosure relates to a transmitter assembly and a detection assembly. Background Technology

[0002] In the current field of medical testing devices, it is common to use transmitters that are applied to the human body. These transmitters obtain physiological indicators such as blood glucose levels through probes inserted into the body, process the information using internal control circuitry, and then transmit it to an external receiving device. Such devices often need to have a small size and high sealing requirements, making them difficult to manufacture and use, and resulting in high costs.

[0003] In view of this, there is an urgent need to provide a transmitter assembly and a detection assembly that can achieve a good sealing effect with an easy-to-manufacture and use structure. Utility Model Content

[0004] In order to at least address one or more of the technical problems mentioned above, this disclosure proposes transmitter and detection component solutions in several aspects.

[0005] In a first aspect, this disclosure provides a transmitter assembly, comprising: a transmitter including a housing and a detection device, the housing having a housing channel extending through the housing in a first direction, the detection device including a detection needle protruding from the housing channel in the first direction; and an auxiliary needle assembly including a needle tip and a protective shell disposed on both sides of the housing in the first direction, the needle tip and the protective shell being separably engaged with each other within the housing channel, and when the two are engaged relative to each other, the needle tip and the protective shell being limited by the housing in the first direction.

[0006] In some embodiments, the needle has a first connector and the upper part of the protective shell has a second connector, the first connector and the second connector being used to engage within the shell channel and being able to switch relative to each other between a locked position and an unlocked position.

[0007] In some embodiments, the first connector is provided with at least one stop block, and the second connector is provided with at least one locking block. The stop block and the locking block are used to rotate relative to each other to a locking position and then abut against each other to lock the second connector in a first direction.

[0008] In some embodiments, the blocking block includes an upper abutment surface, and the locking member includes a lower abutment surface corresponding to the upper abutment surface. The upper abutment surface (215) and the lower abutment surface (32) are formed to automatically center and engage with each other, and the blocking block and the locking block abut against each other by means of the contact between the upper abutment surface and the lower abutment surface.

[0009] In some embodiments, the width of the stop block perpendicular to the first direction is less than the width of the housing channel, and an avoidance slope is provided on the inner side of the housing channel to prevent the peripheral surface of the housing channel from contacting the stop block in the vertical direction when the stop block is moved out of the housing channel.

[0010] In some embodiments, an upper guide surface is provided inside the housing channel along a first direction toward the protective shell direction, and a lower guide surface is provided on the locking block toward the upper guide surface. The upper guide surface and the lower guide surface are shaped to guide the positioning of the second connector when it is inserted into the housing channel.

[0011] In some embodiments, the needle further includes a needle seat having a radial side for forming an anti-rotational engagement with a housing channel, and a guide groove formed by a recess in the lateral surface of the needle seat, the radial extension direction of the guide groove being at an angle to the needle seat.

[0012] In some embodiments, the protective shell is further provided with a guide portion, and the shell is provided with a positioning block corresponding to the guide portion along a first direction, the positioning block being used to abut against the guide portion when the guide portion rotates.

[0013] In some embodiments, the needle has a first connector and the upper part of the protective shell has a second connector. The first connector and the second connector are used to engage within the shell channel and can switch between a locked position and an unlocked position relative to each other. The guide includes a guide positioning groove that is shaped to fit a positioning block. When the first connector rotates relative to the second connector until the positioning block aligns with the guide positioning groove, the positioning block can extend into the guide positioning groove and be releasably limited by it in the direction of rotation.

[0014] In some embodiments, the housing includes a first circumferential limiting mechanism that can limit the needle along the rotation direction of the needle tip.

[0015] In some embodiments, the first circumferential limiting mechanism is a circumferential limiting hole, which is shaped to fit the needle tip for anti-rotation connection.

[0016] In some embodiments, the housing further includes a second circumferential limiting mechanism, the protective housing including a locking block extending perpendicular to the first direction, the second circumferential limiting mechanism being used to abut against the locking block along the rotation direction of the protective housing to limit its rotation angle.

[0017] In some embodiments, a first seal and a second seal are further included. The first seal is disposed between the protective shell and the housing along a first direction, and the second seal is disposed between the needle and the housing along the first direction to seal the housing channel.

[0018] In some embodiments, the housing further includes an auxiliary limiting member, which is provided with a circumferential limiting hole for limiting the rotation angle of the needle within the housing channel.

[0019] In a second aspect, this disclosure provides a detection assembly including a transmitter assembly and a transmitter mounting assembly according to the first aspect and several embodiments of this disclosure, wherein the transmitter assembly is detachably mounted to the transmitter mounting assembly, and the transmitter mounting assembly is used to secure the transmitter to a human body surface.

[0020] With the transmitter assembly provided above, the disclosed embodiments, through the needle and protective shell that are respectively coupled and locked in the housing channel, can achieve sealing and fixing of key parts of the transmitter assembly in a simple manner, thereby improving production efficiency and reducing the difficulty of use. Attached Figure Description

[0021] The above and other objects, features, and advantages of exemplary embodiments of this disclosure will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0022] Figure 1 An exemplary cross-sectional view of a transmitter assembly according to some embodiments of this disclosure is shown;

[0023] Figure 2 An exemplary exploded view of a transmitter assembly according to some embodiments of this disclosure is shown;

[0024] Figure 3 An exemplary exploded view of a transmitter assembly according to some embodiments of this disclosure is shown;

[0025] Figure 4 A perspective view of the needle of a transmitter assembly according to some embodiments of this disclosure is shown;

[0026] Figure 5 A perspective view of a protective housing assembly for a transmitter assembly according to some embodiments of this disclosure is shown;

[0027] Figure 6 A perspective view of the housing of a transmitter assembly according to some embodiments of this disclosure is shown;

[0028] Figure 7 A perspective view of a transmitter assembly of some embodiments of this disclosure is shown;

[0029] Figure 8 A perspective view of an auxiliary limiting member of a transmitter assembly according to some embodiments of this disclosure is shown;

[0030] Figure 9 A side view schematic diagram of a detection component according to some embodiments of this disclosure is shown. Detailed Implementation

[0031] The technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, not all of them. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0032] It should be understood that the terms “comprising” and “including” used in this disclosure and claims indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0033] It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure. As used in this disclosure and claims, the singular forms “a,” “an,” and “” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this disclosure and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0034] As used in this specification and claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0035] The specific embodiments disclosed herein will now be described in detail with reference to the accompanying drawings.

[0036] In view of this, the present disclosure provides a transmitter assembly that enhances the sealing of the transmitter assembly with an easily removable structure by means of a needle and a protective shell that are disposed in a housing channel and engage with each other.

[0037] For clarity and ease of understanding, in the following description, the side of the transmitter that contacts the human body is generally considered the lower vertical side of the transmitter, the side of the transmitter away from the human body is considered the upper vertical side, the direction parallel to the contact surface between the transmitter and the human body is considered the horizontal direction, the direction along the horizontal direction towards the detector pin of the transmitter is considered radially inward, and the direction along the horizontal direction away from the center of the detector pin is considered radially outward. Unless otherwise specified, the positional descriptions of other related components will also be based on this. The purpose of the above description is only to provide a reference direction for describing the relative positional relationships of the various structures, and not to limit the actual structural arrangement of the embodiments in this disclosure.

[0038] See Figure 1 and Figure 2 , Figure 1 An exemplary cross-sectional view of a transmitter assembly according to some embodiments of this disclosure is shown; Figure 2 An exemplary exploded view of a transmitter assembly according to some embodiments of this disclosure is shown. In some embodiments, transmitter assembly 100 may include a transmitter 1. The transmitter 1 may be, for example, an electronic device for installation on a human body to detect physiological indicators such as blood glucose. The transmitter 1 may include, for example, a housing 10 and a detection device 40, wherein the detection device 40 may be disposed, for example, inside the housing 10. The housing 10 may have a housing channel 110 extending vertically through the housing 10, and the detection device 40 may include a detection needle 41 extending vertically downward and protruding from the housing 10. The detection needle 41 may be used, for example, to insert into a human body to detect corresponding physiological indicators within the human body.

[0039] The transmitter assembly 100 may further include a needle assist assembly, which may include a needle 20 disposed vertically on the upper side of the housing 10 and a protective shell 30 disposed on the lower side of the housing 10. The needle 20 may include, for example, a puncture needle 23, used to assist the detection needle 41 in piercing the human body. The protective shell 30 is used to surround and seal the puncture needle 23 and the detection needle 41 to protect them, thereby isolating the puncture needle 23 and the detection needle 41 from direct contact with the external environment and avoiding the risk of infection during use. This sealing protection ensures the sterility of the puncture needle 23 and the detection needle 41 before use, improving user safety. The needle 20 and the protective shell 30 can be separably engaged with each other within the housing channel 110 of the housing 10 and can be rotated relative to each other to a locked position or an unlocked position. In the locked position, the needle 20 and the protective shell 30 are vertically limited by the housing 10.

[0040] Those skilled in the art will understand that in some embodiments, the needle 20 and the protective shell 30 can be disengaged from each other by means of relative rotation within the shell channel 110, but this disclosure does not limit the method of disengagement of the engagement structure between the two. For example, in other embodiments, the connection between the needle and the protective shell can be formed as a destructible connection, for example, the material of the connecting part can be destroyed by twisting and / or stretching, thereby disengaging the engagement between the two, as long as it satisfies the requirement that the two can be connected to each other in a way that allows them to be separated from each other.

[0041] See also Figure 3 , Figure 3 An exemplary exploded view of a transmitter assembly according to some embodiments of this disclosure is shown. Specifically, in some embodiments, the housing 10 may be generally flat and sheet-like. A detection device 40 may be fixedly disposed inside the housing 10. The detection device 40 may include a detection needle 41 for implantation into the human body to contact the object to be detected and a control circuit board 43 for processing and transmitting detection parameters. One end of the detection needle 41 may be electrically connected to the control circuit board 43, and the other end may extend into the housing channel 110 and extend vertically downward toward the transmitter 1, protruding from the lower surface of the housing 10. In some embodiments, in order to stably fix the transmitter 1 to the human body, an adhesive member 15 is also fixedly disposed on the lower side of the housing 10. The adhesive member 15 may be generally sheet-like, with one side fixedly connected to the lower side of the housing 10, and the other side may be provided with an adhesive substance such as adhesive for adhesion and fixation to the skin of the human body.

[0042] In some embodiments, the housing 10 may include an upper housing 11 and a lower housing 13 that are interlocked, and an auxiliary limiting member 12 disposed between the upper housing 11 and the lower housing 13, the three together enclosing a component cavity for accommodating the detection device 40. Specifically, in some embodiments, the upper housing 11, the lower housing 13, and the auxiliary limiting member 12 are all generally flat, and each of them has an opening that extends vertically. The openings of the upper housing 11, the auxiliary limiting member 12, and the lower housing 13 are sequentially connected along a first direction, thereby forming the housing channel 110 of the housing 10. The lower housing 13 may have a lower flange 137 protruding upwards and surrounding the opening on the side near the opening, and the upper housing 11 may have an upper flange 117 protruding downwards and surrounding the opening on the side near the opening. The bottom surface of the auxiliary limiting member 12 abuts against the upper end surface of the lower flange 137, and the upper surface of the auxiliary limiting member 12 and the lower end surface of the upper flange 117 are vertically spaced apart and fixedly connected in the space between them by means of glue injection, snap-fit, etc. At the same time, the outer peripheral edges of the upper housing 11 and the lower housing 13 may also protrude relative to each other and be sealed by means of glue injection, etc. Thus, the auxiliary limiting member 12 can support the upper housing 11 vertically, preventing deformation and damage caused by direct external pressure, thereby protecting the internal electronic components from being squeezed and damaged. Furthermore, the upper housing 11, the lower housing 13, and the auxiliary positioning member can seal and isolate the internal cavity of the component from the outside.

[0043] See Figure 4 , Figure 4 A perspective view of the needle tip of a transmitter assembly according to some embodiments of this disclosure is shown. The needle tip 20 of the auxiliary needle assembly may include, for example, a puncture needle 23 and a needle holder 21 for fixing the puncture needle 23. The puncture needle 23 may be made of a metal material such as medical-grade stainless steel. The puncture needle 23 may include a generally elongated needle body 233, one end of which may be provided with a sharp needle tip 231, and the other end may be provided with a needle tail 236 for connecting the needle body 233 to the needle holder 21. The needle body 233 may also be provided with a needle-receiving groove 230 extending toward the needle tip 231. The cross-sectional shape, cross-sectional size, and extension length of the needle-receiving groove 230 may be matched with the cross-sectional shape, cross-sectional size, and extension length of the detection needle 41 of the transmitter 1, so as to accommodate the vertically extending portion of the detection needle 41 within the needle-receiving groove 230.

[0044] In some embodiments, the needle reservoir 230 may have a generally U-shaped cross-section, allowing the detection needle 41 to be inserted into the needle reservoir 230 through its opening. Those skilled in the art will understand that this disclosure does not limit the specific shape, cross-sectional size, or extension length of the needle body 233 and the needle reservoir 230. For example, the needle reservoir 230 may be configured to have other shapes such as a V-shape or a semi-circle, or its size may be set to be larger than the detection needle to improve assembly convenience, or it may be set to be longer than the detection needle to ensure that the detection needle does not touch the human skin before puncture. Specifically, it is designed to surround the detection needle 41 and assist the detection needle 41 in completing its insertion. The needle hub 21 may be made of engineering plastics such as polycarbonate, and it may be connected to the needle tail 236 of the puncture needle 23, and may be integrally molded with the needle body 233 by injection molding.

[0045] A guide groove 214 for accommodating the detection needle 41 can also be provided on the needle holder 21. The guide groove 214 can be recessed in the needle holder, for example, along the same direction and angle as the needle receiving groove 230. The needle body 233 can be partially exposed in the guide groove 214, for example, the needle body 233 can partially cover the bottom and sidewall of the needle receiving groove 230, so that the needle receiving groove 230 is exposed from the guide groove 214. The radial extension direction of the guide groove 214 can be at a certain angle to the radial side of the positioning section 213. As a result, a larger rotational engagement angle can be formed between the upper abutment surface 215 and the lower abutment surface 32 to increase the engagement strength between the needle tip 20 and the protective shell 30. At the same time, the guide groove 214 can have a larger radial depth in the needle holder 21, so that the material bonded to the outer periphery of the needle body 233 is thicker, thereby improving the connection strength between the needle body 233 and the needle holder 21. The setting angle of the guide groove 214 can be set to correspond to the extension angle of the detection needle 41, so that the detection needle 41 can extend radially into the guide groove 214. In some embodiments, the two inner sidewalls of the guide groove 214 can also be provided with a certain inclination angle to enlarge the opening towards the detection needle 41, provide guidance for the insertion of the detection needle 41, and facilitate the positioning of the detection needle 41 relative to the guide groove 214 during installation.

[0046] See Figure 5 , Figure 5A perspective view of a protective housing assembly of a transmitter assembly according to some embodiments of this disclosure is shown. In some embodiments, the protective housing assembly may include a protective housing 30 and a first seal 51 fixedly disposed on the upper side of the protective housing 30. The needle 20 may have a first connector, and the protective housing 30 may have a second connector, the first connector and the second connector being capable of engaging within a housing channel 110. The first connector may, for example, include a stop block 211 formed on the lower portion of the needle seat 21 of the needle 20, the stop block 211 being radially outwardly projected from a generally cylindrical connector body 217. The second connector may, for example, include a locking block 31 formed on the upper portion of the protective housing 30, the locking block 31 being upwardly extended and further radially inwardly projected. The stop block 211 of the first connector and the locking block 31 of the second connector may be vertically aligned, and the first connector is also provided with a clearance position for engagement of the locking block 31 of the second connector. For example, in some embodiments, the first connector includes at least one stop block 211 that protrudes radially outward from the side of the connector body 217, and the upper side of the stop block 211 has an upper abutment surface 215 that extends vertically upward. The second connector may include a locking block 31 that protrudes vertically upward from the upper end face of the protective shell 30, and the locking block 31, while protruding upward, is inclined radially inward to form a lower abutment surface 32 that extends vertically downward. In some embodiments, the upper abutment surface 215 and the lower abutment surface 32 may be two conical surfaces that fit together in shape.

[0047] The cross-sectional size and shape of the first and second connectors in the horizontal direction can be adapted to the opening size of the housing channel 110, so that both the first and second connectors can at least partially extend into the housing channel 110. By setting the cross-sectional area and relative arrangement of the stop block 211 and the locking block 31, the stop block 211 and the locking block 31 can avoid each other in the vertical direction when both the first and second connectors are extended into the housing channel 110. This allows the first and second connectors to continue moving towards each other in the vertical direction until they partially intersect. Furthermore, the first and second connectors can rotate relative to each other until the upper abutment surface 215 of the stop block 211 and the lower abutment surface 32 of the locking block 31 can abut against each other in the vertical direction.

[0048] Meanwhile, a push-up top 219 can be provided on the lower side of the needle holder 21, and a push-down top 309 can be provided on the upper side of the protective shell 30. The push-up top 219 is used to push the first connector downwards toward the shell 10 in a vertical direction after it extends into the shell channel 110. Similarly, the push-down top 309 is used to push the second connector upwards toward the shell 10 in a vertical direction after it extends into the shell channel 110. After the first connector and the second connector extend into the shell channel 110 from both sides of the shell 10, the first connector and the second connector engage and can be rotated relative to each other from the unlocked position to a locked position.

[0049] Specifically, when the blocking block 211 of the first connector and the locking block 31 of the second connector avoid each other in the vertical direction, this position is the unlocked position, and the first and second connectors can be separated vertically within the housing channel 110. When the first and second connectors rotate relative to each other within the housing channel 110 until the upper abutting surface 215 of the blocking block 211 abuts against the lower abutting surface 32 of the locking block 31, this position is the locked position. At this point, the relative separation of the first and second connectors in the vertical direction within the housing channel 110 is blocked by each other. Simultaneously, the upward pushing top 219 of the needle holder 21 and the downward pushing top 309 of the protective shell 30 push against the housing 10 from the upper and lower directions respectively, preventing the needle 20 and the protective shell 30 from moving vertically relative to the housing 10, thus achieving vertical locking of the entire transmitter assembly.

[0050] See also Figure 4 In some embodiments, the first connector of the needle holder 21 may include two stop blocks 211, and the second connector of the protective shell 30 may correspondingly include two locking blocks 31, wherein the two stop blocks 211 may be arranged symmetrically on both sides of the connector body 217 with respect to the vertical direction. This ensures that, in the locked position, the vertical connection force between the stop blocks 211 and the locking blocks 31 is evenly distributed across the connector body 217, preventing tilting due to unbalanced forces when holding or releasing the protective shell 30. Those skilled in the art will understand that although the above describes an embodiment with two blocking blocks 211 and two locking blocks 31, this disclosure does not limit the number and shape of the locking blocks 31 and the blocking blocks 211. For example, only one blocking block 211 and its corresponding locking block 31 may be provided, or more blocking blocks 211 and their corresponding locking blocks 31 may be provided, or only one blocking block 211 may be provided and multiple locking blocks 31 may be engaged and locked with the blocking block 211 at the same time, as long as the first connector and the second connector can be locked or released relative to each other in the vertical direction by means of rotation.

[0051] See Figure 6 , Figure 6A perspective view of the bottom of the housing of a transmitter assembly according to some embodiments of this disclosure is shown. In some embodiments, the upper side of the locking block 31 is further provided with an inclined lower guide surface 33, which may be approximately partially conical, while the inner side of the housing channel 110 is provided with a radially inwardly protruding guide portion, and the lower side of the guide portion is provided with an upper guide surface 133 corresponding to the lower guide surface 33. The upper guide surface 133 and the lower guide surface 33 are used to guide the second connector when the first connector and the second connector are engaged and rotated relative to each other. When the protective shell 30 is installed, the second connector is positioned towards the center of the two guide surfaces by means of the shape fit between the upper guide surface 133 and the lower guide surface 33 as it moves in the vertical direction. This reduces the occurrence of misalignment between the protective shell 30 and the needle 20 when the protective shell 30 is installed. When the second connector rotates from the unlocked position to the locked position or from the locked position to the unlocked position, the contact between the upper guide surface 133 and the lower guide surface 33 ensures that the second connector will not be radially offset or tilted relative to the transmitter 1.

[0052] In some embodiments, the upper part of the protective shell 30 further includes a guide portion, and the housing 10 may be provided with a positioning portion for cooperating with the guide portion. The guide portion can be used to provide a clamping force for pressing the first connector and the second connector together when they rotate relative to each other. Specifically, in some embodiments, the guide portion may include a first guide block 34 with a low height protruding upward from the upper end face of the protective shell 30, and the positioning portion may include a first positioning block 132 extending from the housing 10 toward the first guide block 34. The first positioning block 132 may be disposed on the rotational movement path of the first guide block 34, and both or one of them may have a guide ramp 35 disposed at the end. Thus, when the second connector rotates relative to the housing 10, the first positioning block 132 can contact the first guide block 34 and move to the upper surface of the first guide block 34 by means of the guide ramp 35. This allows the first positioning block 132 to abut against the guide surface downward toward the housing 10, thereby subjecting the protective shell 30 to downward pressure. The downward pressure will be transmitted to the contact portion between the locking block 31 and the stop block 211, increasing the contact pressure between the upper abutment surface 215 of the stop block 211 and the lower abutment surface 32 of the locking block 31.

[0053] Simultaneously, when the locking block 31 engages with the stop block 211 and is in the locked position, the upper guide surface 133 can also limit the radial deformation of the lower guide surface 33 by means of its contact with the lower guide surface 33. That is, when there is axial contact pressure between the locking block 31 and the stop block 211, this contact pressure may act on the locking block 31 to cause radial elastic deformation, and the radial elastic deformation of the locking block 31 will cause the lower guide surface 33 to abut against the upper guide surface 133 radially. Thus, it is possible to prevent the lower guide surface 33 and the upper guide surface 133 from being relatively misaligned or loosened due to the elastic deformation of the locking block 31.

[0054] Those skilled in the art will understand that, although the above description shows an embodiment in which the upper guide surface 133 is at least partially conical and the lower guide surface 33 is configured to match it, in other embodiments, the upper guide surface may be configured to other shapes capable of producing an auto-centering effect. For example, a partially spherical surface, an arcuate surface, or a configuration including multiple inclined sub-guide surfaces opposite to each other, with the lower guide surface 33 configured to match it, thus creating an auto-centering fit between the upper guide surface 133 and the lower guide surface 33. In some embodiments, at least one of the upper abutment surface and the lower abutment surface may be formed as a surface of revolution, and the two can form a sliding fit with each other by means of this surface of revolution. For example, one of them may be formed as a conical surface, and the other may be formed as a corresponding conical surface, or it may be formed as other surfaces of revolution such as a sphere, as long as a sliding fit can be formed between them. This ensures stable contact during relative rotation, preventing jamming or jumping.

[0055] In some embodiments, the first guide block 34 and the first positioning block 132 can constitute a circumferential stop mechanism. For example, when the second connector rotates relative to the housing 10 until the first positioning block 132 contacts the end face or guide ramp 35 of the guide block, it will experience a certain resistance in the rotation direction. Only when the driving force driving its rotation can cause the locking block 31 to undergo an elastic deformation distance in the vertical direction greater than the height difference between the first positioning block 132 and the first guide block 34 can it move across the end face or guide ramp 35 to the upper surface of the guide block. Thus, the first guide block 34 can form a circumferential positioning with the first positioning block 132, and by setting one end face of the first guide block 34 at the position corresponding to the completion of rotation, the second connector can be prevented from rotating in the opposite direction relative to the housing 10.

[0056] Those skilled in the art will understand that, in some embodiments, when the upper abutment surface 215 and the lower abutment surface 32 are mutually mating conical surfaces, the cooperation of the guide portion and the positioning portion to provide additional mating pressure in the vertical direction can have additional effects. That is, when the first connector and the second connector rotate relative to each other, the upper abutment surface 215 and the lower abutment surface 32, due to the relative thrust they receive, will achieve an automatic centering effect due to the cooperation of the two conical surfaces. Therefore, when tightening to install or loosening to remove the protective shell 30, the protective shell 30 can maintain its relative angle with the first needle tip 20 by means of the two mutually mating conical surfaces, thereby greatly reducing the possibility of the protective shell 30 tilting or even misaligning and contacting the puncture needle 23 during tightening.

[0057] Furthermore, setting the upper contact surface 215 and the lower contact surface 32 as mutually mating conical surfaces can increase the contact area between the first connector and the second connector. Simultaneously, due to the interaction of the two conical surfaces, the first connector and the second connector, when in the locked position, support each other not only vertically but also radially, thereby further enhancing the connection strength between the first connector and the second connector. Furthermore, when the upper guide surface 133 is also set as a conical surface, it can also guide the upper contact surface 215 when the first connector is pulled upwards in the vertical direction. That is, even if the first connector is tilted relative to the housing due to incorrect pulling direction, the contact between the conical surface and the conical surface of the upper contact surface 215 can guide the first connector back to the vertical direction, further preventing jamming or tilting when the puncture needle is pulled out.

[0058] In some embodiments, the guide portion may further include a second guide block 37, while a second positioning block 131 may be provided on the housing 10 at a distance from the first positioning block 132. The second guide block 37 may be spaced apart from the first guide block 34, defining a guide positioning groove 38 between them. The size and shape of the guide positioning groove 38 may match the second positioning block 131. Thus, when the second connector rotates to the point where the guide positioning groove 38 aligns with the second positioning block 131, it can be held in a pre-locked position by the guide positioning groove 38, preventing it from easily continuing to rotate or turning back. Furthermore, during assembly, when the second connector rotates to the point where the guide positioning groove 38 aligns with the second positioning block 131, the assembler will feel a vibration at the moment the second positioning block 131 engages with the guide positioning groove 38, reminding the assembler that it has been installed correctly. By adjusting the position of the guide positioning groove 38, its pre-locking angle relative to the housing 10 can be adjusted accordingly in the rotation direction of the second connector. In some embodiments, the pre-locking position may correspond to the locking position of the second connector relative to the first connector. This ensures that when the second connector rotates relative to the housing 10 to the pre-locked position, it also rotates relative to the first connector inserted into the housing channel 110 to the locked position. Therefore, the guide positioning groove 38 also provides a indication of proper tightening during installation, reducing the risk of damage to the second connector due to excessive rotation of the protective housing 30 during installation.

[0059] In some embodiments, both the first guide block 34 and the second guide block 37 of the guide portion can be portions located near the outer peripheral edge of the upper end face of the second connector. Those skilled in the art will understand that this disclosure does not limit the specific structure of the guide portion; for example, it may include more guide blocks and positioning blocks, or the guide portion may include a continuous curved surface formed on the upper end face of the second connector, or the guide portion may be configured as a continuous protrusion extending radially outward from the radial sidewall of the second connector, etc. It is only necessary that it can abut against the positioning portion on the housing 10 in the vertical direction to provide thrust, and / or form pre-locking and / or anti-return in the rotational direction.

[0060] In some embodiments, the housing 10 may further include a first circumferential limiting mechanism, which can limit the rotation angle of the first connector relative to the housing 10 along the rotation direction of the first connector. Specifically, the first circumferential limiting mechanism of the housing 10 may be a circumferential limiting hole (e.g., 136, 121). The circumferential limiting hole (e.g., 136, 121) may be located at the center of the housing 10, communicating with the housing channel 110 in the vertical direction. A limiting segment 213 may be provided on the first connector, the shape of which may form a shape fit with the cross-sectional shape of the circumferential limiting hole (e.g., 136, 121), such that after the first connector is inserted into the housing channel 110, the circumferential limiting hole (e.g., 136, 121) engages with the limiting segment 213 and limits it, preventing the first connector from rotating relative to the housing 10. In some embodiments, the cross-sectional shape of the circumferential limiting hole (e.g., 136, 121) can be formed as a generally rounded rectangle, and the cross-sectional shape of the limiting segment 213 on the first connector can also be formed as a rounded rectangle. It is understood that the circumferential limiting hole (e.g., 136, 121) and the limiting segment 213 can also be configured to have other cross-sectional shapes, such as triangles or rhombuses. In some other embodiments, the circumferential limiting hole (e.g., 136, 121) may not form a shape fit with the limiting segment 213; for example, the circumferential limiting hole (e.g., 136, 121) can be configured to have an elongated groove, and the limiting segment 213 is provided with abutting surfaces that abut against two sides of the elongated groove. Alternatively, the circumferential limiting hole (e.g., 136, 121) and the limiting segment 213 can be configured to rotate relative to each other by a certain angle.

[0061] In some embodiments, the opening of the upper housing 11 can be formed as a circumferential limiting hole 136 for circumferentially limiting the first connector. Similarly, the opening of the auxiliary limiting member 12 can be formed as a circumferential limiting hole 121 for circumferentially limiting the first connector. The width of the auxiliary limiting member 12 and the circumferential limiting hole of the upper housing 11 can be larger than the width of the first connector, so that the first connector will not get stuck or move poorly due to slight tilting or misalignment when it is withdrawn from the circumferential limiting hole. Furthermore, the sides of the auxiliary limiting member 12 and the circumferential limiting hole of the upper housing 11 can also be provided with relief slopes 121a and 136a that are inclined toward the direction of the first connector, so as to facilitate the first connector being pulled out relative to the housing, and to prevent the peripheral surface of the housing channel 110 from abutting against the stop block 211 in the vertical direction when the stop block 211 is moved out of the housing channel 110, thereby enhancing the smoothness of the needle removal action.

[0062] In some embodiments, the housing 10 may further include a second circumferential limiting mechanism, which abuts against the protective housing 30 along the rotation direction of the protective housing 30 to limit its rotation angle. For example, a circumferential limiting block protruding radially into the housing channel 110 may be provided on the portion of the housing 10 adjacent to the housing channel 110. The circumferential limiting block may be provided, for example, on the path of rotational movement of the locking block 31 of the second connector, thereby limiting the rotation angle of the second connector relative to the housing 10. In some embodiments, the first positioning block 132 may also serve as a circumferential limiting block, and the second circumferential limiting mechanism may include two circumferential limiting blocks, each having a first limiting side 134 for abutting against the side of the locking block 31. The position of the first limiting side 134 may be provided, for example, corresponding to the first circumferential limiting mechanism, such that when the second connector rotates relative to the first connector to the locked position, the first limiting side 134 abuts against the side of the locking block 31. This prevents over-tightening when installing the locking protective housing 30. Similarly, each circumferential limiting block may include a second limiting side 135, which is used to abut against its other side when the locking block 31 is rotated to the unlock position to prevent it from rotating excessively.

[0063] In some embodiments, the transmitter assembly may further include a second seal 52. The first seal 51 may be vertically disposed between the protective shell 30 and the housing 10; similarly, the second seal 52 may be vertically disposed between the needle 20 and the housing 10. Specifically, in some embodiments, the needle 20 may include a vertically downward sealing bottom surface 218, and the auxiliary limiting member 12 of the housing 10 may include an upward-facing sealing surface. The second seal 52 may be, for example, a sealing ring, with its upper side abutting against the sealing bottom surface 218, and its lower side fixed to the sealing surface of the auxiliary limiting member 12 by injection molding.

[0064] Similarly, in some embodiments, the protective shell 30 may include a vertically upward sealing top surface 39, while the housing 10 may include a downward-facing second sealing element mounting surface. The first sealing element 51 may be a sealing ring, with its upper side abutting against the second sealing element mounting surface and its lower side fitting against the sealing top surface 39, and fixedly connected to the protective shell 30 by injection molding or other means. Furthermore, the protective shell 30 may include a radially outward-protruding sealing flange, with its upward-facing end face serving as the sealing top surface 39 for fixed connection with the lower side of the sealing ring. The portion of the radial sidewall of the protective shell 30 adjacent to the sealing top surface 39 may abut against the radially inner side of the sealing ring. In some embodiments, an adhesive portion can be added between the sidewall and the radially inner side of the sealing ring to enhance the connection strength and sealing effect. Alternatively, the inner dimensions of the sealing ring can be adjusted to allow it to elastically and tightly fit around the outer periphery of the protective shell 30 sidewall, which also increases the connection strength and sealing effect.

[0065] See Figure 7 and Figure 8 , Figure 7 A perspective view of a transmitter assembly of a transmitter according to some embodiments of this disclosure is shown, wherein the upper housing has been removed to clearly show its internal structure; Figure 8 A perspective view of an auxiliary limiting member of a transmitter assembly according to some embodiments of this disclosure is shown. In some embodiments, the lower housing 13 further includes a probe guide having a needle groove 139 that mates with the shape of a detection needle 41 and a glue injection groove 138 communicating with the needle groove 139. The probe guide may, for example, include two sequentially communicating grooves extending radially from the inner sidewall of the lower flange 137 toward the housing channel 110. The groove closer to the assembly cavity is the glue injection groove 138, and the groove closer to the housing channel 110 is the needle groove 139. The detection needle 41, extending from the control circuit board 43 of the detection device 40, can sequentially pass through the glue injection groove 138 and the needle groove 139 and finally extend into the housing channel 110. The width of the needle groove 139 can be set to match the width of the detection needle 41 to provide guidance for the detection needle 41. The width of the glue injection groove 138 can be greater than the width of the needle groove 139, thereby facilitating the injection of glue into the glue injection groove 138 for fixation. In addition, the bottom surface of the auxiliary limiting member 12 is provided with an auxiliary needle groove 123. The auxiliary needle groove 123 is used to at least partially accommodate the detection needle 41 within the housing channel 110, so as to limit and protect the detection needle 41 and prevent it from being touched. In actual production, the detection needle 41 can be first glued and fixed to the needle groove 139 of the lower housing 13 and the auxiliary needle groove 123 of the auxiliary limiting member 12 with adhesive, and then sealed with glue.

[0066] The transmitter assembly of some embodiments disclosed herein can achieve sealing and fixing of key parts of the transmitter assembly in a simple manner by using a needle and a protective shell that are disposed in a housing channel and are engaged and locked together, thereby improving production efficiency, reducing the difficulty of use, reducing production and use costs, and also improving product stability.

[0067] See Figure 9 , Figure 9 A side view schematic diagram of a detection assembly according to some embodiments of the present disclosure is shown. In some embodiments, the detection assembly 200 may include a transmitter assembly 100 and a transmitter mounting assembly 80 according to some embodiments of the present disclosure. The transmitter assembly 100 may be detachably mounted to the transmitter mounting assembly 80 for transferring the transmitter 1 to a human body.

[0068] While numerous embodiments of this disclosure have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of this disclosure. It should be understood that various alternatives to the embodiments of this disclosure described herein may be employed in the practice of this disclosure. The appended claims are intended to define the scope of this disclosure and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A transmitter assembly, characterized in that, include: The transmitter (1) includes a housing (10) and a detection device (40), the housing (10) having a housing channel (110) extending through the housing (10) in a first direction, and the detection device (40) including a detection needle (41) protruding from the housing channel (110) in the first direction from the housing (10); The needle-assist assembly includes a needle (20) and a protective shell (30) disposed on both sides of a housing (10) along a first direction. The needle (20) and the protective shell (30) are separably engaged with each other within a housing channel (110). When the two are engaged relative to each other, the needle (20) and the protective shell (30) are limited by the housing (10) along the first direction.

2. The transmitter assembly according to claim 1, characterized in that, The needle (20) has a first connector and the upper part of the protective shell (30) has a second connector. The first connector and the second connector are used to engage within the shell channel (110) and can switch relative to each other between a locked position and an unlocked position.

3. The transmitter assembly according to claim 2, characterized in that, The first connector is provided with at least one stop block (211), and the second connector is provided with at least one locking block (31). The stop block (211) and the locking block (31) are used to abut against each other to lock the second connector in a first direction after being rotated relative to each other to the locked position.

4. The transmitter assembly according to claim 3, characterized in that, The blocking block (211) includes an upper abutting surface (215), and the locking block (31) includes a lower abutting surface (32) corresponding to the upper abutting surface (215). The upper abutting surface (215) and the lower abutting surface (32) are formed to automatically center and cooperate with each other. The blocking block (211) and the locking block (31) abut against each other by means of the contact between the upper abutting surface (215) and the lower abutting surface (32).

5. The transmitter assembly according to claim 3, characterized in that, The width of the stop block (211) perpendicular to the first direction is smaller than the width of the housing channel (110). The inner side of the housing channel (110) is provided with a relief slope to prevent the peripheral surface of the housing channel (110) from contacting the stop block (211) in the vertical direction when the stop block (211) moves out of the housing channel (110).

6. The transmitter assembly according to claim 3, characterized in that, The inner side of the housing channel (110) is provided with an upper guide surface (133) facing the protective shell (30) in a first direction, and the locking block (31) is provided with a lower guide surface (33) facing the upper guide surface (133). The upper guide surface (133) and the lower guide surface (33) are shaped to guide the second connector to position when it is inserted into the housing channel (110).

7. The transmitter assembly according to claim 1, characterized in that, The needle also includes a needle seat (21), which has a radial side for forming an anti-rotational engagement with the housing channel (110) and a guide groove (214) formed by a recess in the lateral surface of the needle seat (21), the radial extension direction of the guide groove (214) being at a certain angle to the needle seat (21).

8. The transmitter assembly according to any one of claims 3 to 7, characterized in that, The protective shell (30) is also provided with a guide portion, and the housing (10) is provided with a positioning block (132) corresponding to the guide portion along a first direction. The positioning block (132) is used to abut against the guide portion when the guide portion rotates.

9. The transmitter assembly according to claim 8, characterized in that, The needle (20) has a first connector, and the upper part of the protective shell (30) has a second connector. The first connector and the second connector are used to engage in the shell channel (110) and can switch between locked and unlocked positions relative to each other. The guide includes a guide positioning groove (38), which is shaped to fit the positioning block (132). When the first connector rotates relative to the second connector until the positioning block (132) is aligned with the guide positioning groove (38), the positioning block (132) can extend into the guide positioning groove (38) and be releasably limited by it in the direction of rotation.

10. The transmitter assembly according to any one of claims 1 to 7, characterized in that, The housing (10) includes a first circumferential limiting mechanism that can limit the needle (20) along the rotation direction.

11. The transmitter assembly according to claim 10, characterized in that, The first circumferential limiting mechanism is a circumferential limiting hole, which is shaped to fit the needle (20) so as to prevent it from rotating.

12. The transmitter assembly according to claim 10, characterized in that, The housing (10) further includes a second circumferential limiting mechanism. The protective shell (30) includes a locking block (31) extending perpendicular to the first direction. The second circumferential limiting mechanism is used to abut against the locking block (31) along the rotation direction of the protective shell (30) to limit its rotation angle.

13. The transmitter assembly according to any one of claims 1 to 7, characterized in that, It also includes a first seal (51) and a second seal (52), the first seal (51) being disposed between the protective shell (30) and the housing (10) along a first direction, and the second seal (52) being disposed between the needle (20) and the housing (10) along a first direction, for sealing the housing channel (110).

14. The transmitter assembly according to claim 1, characterized in that, The housing (10) also includes an auxiliary limiting member (12), which is provided with a circumferential limiting hole for limiting the rotation angle of the needle (20) in the housing channel (110).

15. A detection component, characterized in that, Includes a transmitter assembly according to any one of claims 1-14 and a transmitter mounting assembly (80), the transmitter assembly being detachably mounted to the transmitter mounting assembly (80), the transmitter mounting assembly (80) being used to secure the transmitter (1) to a human body surface.

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