Emitter assembly and detection assembly

Abstract

Disclosed in the present disclosure are an emitter assembly and a detection assembly. The emitter assembly comprises: an emitter comprising a housing and a detection assembly, the housing being provided with a housing hole channel passing through the housing in a first direction, and the detection assembly comprising a detection needle protruding from the housing in the first direction by means of the housing hole channel; and a needle assisting assembly comprising a needle head and a protective sheath arranged on both sides of the housing in the first direction. The needle head and the protective sheath are detachably engaged with each other in the housing hole channel. When the needle head and the protective sheath are oppositely engaged with each other, the needle head and the protective sheath are limited by the housing in the first direction. The emitter assembly seals and fixes key parts of the emitter assembly in a simple manner by means of the needle head and the protective sheath that are arranged in the housing hole channel and are oppositely combined and locked, which improves the production efficiency and reduces the difficulty of use.

Description

A transmitter assembly and a detection assembly

[0001] The present application claims priority to the following Chinese patent applications: Chinese Patent Application No. 2024113868976, filed on September 30, 2024, entitled “A Transmitter Assembly and a Detection Assembly”; and Chinese Patent Application No. 2024224216473, filed on September 30, 2024, entitled “A Transmitter Assembly and a Detection Assembly”. The contents of the above applications are hereby incorporated by reference in their entirety. TECHNICAL FIELD

[0002] The present disclosure relates generally to the technical field of medical devices. More particularly, the present disclosure relates to a transmitter assembly and a detection assembly. BACKGROUND

[0003] In the current field of medical detection devices, it is common to use a detection information transmitter applied to the human body. Such a transmitter obtains physiological index information of the human body, such as blood glucose level, through a probe inserted into the human body, and sends the information to an external receiving device after corresponding processing by the internal control circuit of the transmitter. Such a device often needs to have a small size and high sealing requirements, which is difficult to produce and use, and has a high cost. In addition, such a device often needs to have high sealing requirements, which makes it difficult to miniaturize the transmitter assembly.

[0004] Therefore, there is an urgent need to provide a transmitter assembly and a detection assembly that not only reduces the size of the transmitter assembly, but also is easy to produce and use, and can achieve good sealing effect. SUMMARY

[0005] To at least solve one or more of the above-mentioned technical problems, the present disclosure proposes a transmitter assembly and a detection assembly scheme in various aspects.

[0006] In a first aspect, the present disclosure provides a transmitter assembly, comprising a transmitter and a needle assisting assembly. The transmitter comprises a housing and a detection device. The housing comprises a housing channel through the housing along a first direction; the detection device comprises a detection needle protruding from the housing along the first direction by the housing channel. The needle assisting assembly comprises a protective shell and a needle head. The protective shell is arranged on both sides of the housing along the first direction; the needle head is arranged on both sides of the housing along the first direction and is separably engaged with the protective shell in the housing channel. Wherein, the needle head and the protective shell are limited by the housing along the first direction.

[0007] According to some embodiments of the present disclosure, the needle has a first joint; the protective shell upper portion has a second joint; and the first joint and the second joint are engaged within the shell channel and switchable between a locked position or an unlocked position relative to each other.

[0008] According to some embodiments of the present disclosure, at least one blocking piece is arranged on the first joint; at least one locking piece is arranged on the second joint; and the at least one locking piece, after being rotated to the locked position relative to the at least one blocking piece, abuts against the at least one blocking piece to lock the second joint in the first direction.

[0009] According to some embodiments of the present disclosure, the at least one blocking piece comprises an upper abutting surface; the at least one locking piece comprises a lower abutting surface corresponding to the upper abutting surface; and the at least one locking piece abuts against the blocking piece through contact between the upper abutting surface and the lower abutting surface.

[0010] According to some embodiments of the present disclosure, the upper abutting surface and the lower abutting surface abut with each other in automatic centering.

[0011] According to some embodiments of the present disclosure, the at least one blocking piece has a width perpendicular to the first direction smaller than a width of the shell channel; and a relief inclined surface is arranged inside the shell channel to prevent the peripheral surface of the shell channel from abutting against the at least one blocking piece in a vertical direction when the at least one blocking piece is moved out of the shell channel.

[0012] According to some embodiments of the present disclosure, an upper guide surface is arranged inside the shell channel towards the protective shell in the first direction; a lower guide surface is arranged on the at least one locking piece towards the upper guide surface; and the upper guide surface and the lower guide surface are shaped to match to guide the positioning of the second joint when it is extended into the shell channel.

[0013] According to some embodiments of the present disclosure, the needle further comprises a needle base; the needle base has a radial side surface forming a rotation-preventing fit with the shell channel; and a needle guide groove is recessed from the lateral surface of the needle base; a radial extension direction of the needle guide groove is at an angle to the needle base.

[0014] According to some embodiments of the present disclosure, a guide portion is further arranged on the protective shell; a positioning block corresponding to the guide portion in the first direction is arranged on the shell; and the positioning block abuts against the guide portion when the guide portion is rotated.

[0015] According to some embodiments of the present disclosure, the guide portion comprises a guide positioning slot, which is shaped to cooperate with the positioning block, and when the first joint is rotated relative to the second joint until the positioning block is aligned with the guide positioning slot, the positioning block extends into the guide positioning slot, and is releasably positioned by the guide positioning slot in the rotation direction.

[0016] According to some embodiments of the present disclosure, the housing comprises a first circumferential positioning mechanism, which is capable of positioning the needle in the rotation direction thereof.

[0017] According to some embodiments of the present disclosure, the first circumferential positioning mechanism is a circumferential positioning hole, and the circumferential positioning hole is shaped to cooperatively connect with the needle in a rotation-proof manner.

[0018] According to some embodiments of the present disclosure, the housing further comprises a second circumferential positioning mechanism, the protective shell comprises the at least one locking block extending perpendicularly to the first direction, and the second circumferential positioning mechanism is used to abut against the at least one locking block in the rotation direction of the protective shell, so as to limit the rotation angle of the at least one locking block.

[0019] According to some embodiments of the present disclosure, further comprising a first sealing member and a second sealing member, the first sealing member is arranged between the protective shell and the housing in the first direction, and the second sealing member is arranged between the needle and the housing in the first direction, so as to seal the housing channel.

[0020] According to some embodiments of the present disclosure, the housing further comprises an auxiliary positioning member, and the auxiliary positioning member is further provided with a circumferential positioning hole for limiting the rotation angle of the needle in the housing channel.

[0021] In a second aspect, the present disclosure provides a detection assembly, comprising the above-mentioned transmitter assembly and a transmitter mounting assembly. The transmitter assembly is detachably mounted on the transmitter mounting assembly, and the transmitter mounting assembly is configured to fix the transmitter to the surface of the human body.

[0022] By means of the transmitter assembly provided above, the embodiments of the present disclosure can realize the sealing and fixing of the key parts of the transmitter assembly in a simple manner by means of the relatively combined and locked needle and protective shell arranged in the housing channel, thereby improving the production efficiency and reducing the use difficulty.

[0023] In a third aspect, the present disclosure provides a transmitter assembly comprising a transmitter and a needle assisting assembly. The transmitter comprises a housing; the needle assisting assembly comprises a protective shell and a needle. The protective shell is provided with at least one locking block; the needle is provided with at least one blocking block on both sides of the housing along a first direction; and the needle is rotatably engaged with the protective shell along the first direction, so that the blocking block and the locking block can abut along the first direction, thereby locking the protective shell along the first direction.

[0024] According to some embodiments of the present disclosure, the housing has a housing channel through the housing along the first direction; and the needle can be horizontally rotatably engaged with the protective shell in the housing channel.

[0025] According to some embodiments of the present disclosure, the blocking block comprises an inclined upper abutting surface; the locking piece comprises an inclined lower abutting surface corresponding to the upper abutting surface; and the blocking block and the locking block are in abutment through the contact of the upper abutting surface and the lower abutting surface.

[0026] According to some embodiments of the present disclosure, the blocking block comprises an upper abutting surface, and the locking piece comprises a lower abutting surface corresponding to the upper abutting surface, at least one of the upper abutting surface or the lower abutting surface is a rotational curved surface, so that the upper abutting surface and the lower abutting surface can form a sliding fit through the rotational curved surface.

[0027] According to some embodiments of the present disclosure, the needle comprises at least two blocking blocks; the at least two blocking blocks are angularly spaced around the axis of the needle and comprise an upper abutting surface; the locking piece comprises a lower abutting surface corresponding to the upper abutting surface; and the blocking block and the locking block are in abutment through the contact of the upper abutting surface and the lower abutting surface.

[0028] According to some embodiments of the present disclosure, the upper abutting surface and the lower abutting surface are matched with each other in automatic centering.

[0029] According to some embodiments of the present disclosure, the protective shell is further provided with a guide portion; the housing is provided with a positioning block corresponding to the guide portion along the first direction; and the positioning block is configured to abut against the guide portion when the guide portion rotates.

[0030] According to some embodiments of the present disclosure, the housing comprises a first circumferential limiting mechanism; and the first circumferential limiting mechanism can limit the needle along the rotation direction of the needle to limit the rotation angle of the needle.

[0031] According to some embodiments of the present disclosure, the shell further comprises a second circumferential limiting mechanism; the protective shell comprises a locking block extending perpendicularly to the first direction; and the second circumferential limiting mechanism is used to abut against the locking block in the rotation direction of the protective shell to limit the rotation angle thereof.

[0032] According to some embodiments of the present disclosure, the transmitter assembly further comprises a first sealing member and a second sealing member; the first sealing member is arranged between the protective shell and the shell in the first direction, and the second sealing member is arranged between the needle and the shell in the first direction to seal the shell.

[0033] In a fourth aspect, the present disclosure provides a detection assembly comprising a transmitter mounting assembly and the aforementioned transmitter assembly. The transmitter assembly is detachably mounted to the transmitter mounting assembly; the transmitter mounting assembly is configured to fix the transmitter to the surface of the human body.

[0034] By means of the transmitter assembly provided above, the embodiments of the present disclosure can realize the sealing and fixation of the key parts of the transmitter assembly in a simple manner by means of the relatively rotating and locking needle and protective shell arranged in the shell, so as to make the device layout more compact and facilitate the miniaturization of the transmitter assembly. BRIEF DESCRIPTION OF DRAWINGS

[0035] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which several embodiments of the present disclosure are shown by way of example, and wherein like reference numerals refer to like elements throughout. In the drawings:

[0036] FIG. 1 shows an exemplary cross-sectional view of a transmitter assembly according to some embodiments of the present disclosure;

[0037] FIG. 2 shows an exemplary exploded view of a transmitter assembly according to some embodiments of the present disclosure;

[0038] FIG. 3 shows an exemplary exploded view of a transmitter assembly according to some embodiments of the present disclosure;

[0039] FIG. 4 shows a perspective view of a needle of a transmitter assembly according to some embodiments of the present disclosure;

[0040] FIG. 5 shows a perspective view of a protective shell assembly of a transmitter assembly according to some embodiments of the present disclosure;

[0041] FIG. 6 shows a perspective view of a shell of a transmitter assembly according to some embodiments of the present disclosure;

[0042] FIG. 7 shows a perspective view of a transmitter of a transmitter assembly according to some embodiments of the present disclosure;

[0043] Figure 8 shows a perspective view of an auxiliary limiting piece of a transmitter assembly according to some embodiments of the present disclosure; and

[0044] Figure 9 shows a side view of a detection assembly according to some embodiments of the present disclosure.

[0045] The reference signs in the detailed description of the embodiments are as follows: 1 transmitter; 10 housing; 12 auxiliary limiting piece; 13 lower housing; 15 adhesive piece; 100 transmitter assembly; 110 housing channel; 117 upper flange; 121 circumferential limiting hole 121; 121a avoidance bevel; 123 auxiliary needle slot; 131 second positioning block; 132 first positioning block; 133 upper guide surface; 134 first limiting side surface; 135 second limiting side surface; 136 circumferential limiting hole; 136a avoidance bevel; 137 lower flange; 138 glue injection groove; 139 needle slot. 20 needle; 21 needle seat; 23 puncture needle; 200 detection assembly; 211 blocking block; 213 limiting section; 214 needle guide slot; 215 upper abutment surface; 217 joint body; 218 sealing bottom surface; 219 upper push top; 230 needle containing slot; 231 needle tip; 233 needle body; 236 needle tail. 30 protective shell; 31 locking block; 32 lower abutment surface; 33 lower guide surface; 34 first guide block; 35 guide bevel; 37 second guide block; 38 guide positioning groove; 39 sealing top surface; lower push top 309. 40 detection device; 41 detection needle; 43 circuit board. 51 first sealing piece; 52 second sealing piece. 80 transmitter mounting assembly. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in combination with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present disclosure.

[0047] It should be understood that the terms “include” and “contain” used in the specification and claims of the present disclosure indicate the presence of the described features, whole, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, whole, steps, operations, elements, components and / or sets thereof.

[0048] It should also be understood that the terms used herein are for the purpose of describing particular embodiments and are not intended to limit the disclosure. As used in this specification and claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "includes" and / or "containing," when used in this specification and in the following claims, means that the associated feature, integer, step, operation, element, and / or component is present, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0049] It should also be further understood that the term "and / or" used in the specification and claims herein is used to mean any one of the associated listed items, as well as all possible combinations of the items, and includes all possible combinations of the items. In this specification, the phrase "A, B, and / or C" such expressions as "at least one of A, B, and C," or "one or more of A, B, or C" mean that A alone, B alone, C alone, or any combination of A, B, and C can be present. In other words, A, B, and C can be present individually or in any combination with each other. The combination of A, B, and C is A, B, C, AB, AC, BC, or ABC.

[0050] In this specification, unless specifically stated otherwise, the relationship between structures is a direct relationship, but also an indirect relationship, is a total relationship, but also a partial relationship. For example, when describing "A is connected to B," unless it is specifically stated that A is directly connected to B, it should be understood that A is directly connected to B, and also indirectly connected to B; for example, when describing "A is on B," unless it is specifically stated that A is directly on top of B (AB is adjacent and A is on top of B), it should be understood that A is directly on top of B, and A is also indirectly on top of B (AB is separated by other elements, and A is on top of B). For example, when describing "A is in B," unless it is specifically stated that A is entirely in B, it should be understood that A is entirely in B, and A is also partially in B. Similarly.

[0051] As used in this specification and claims, the term "if" can be construed to mean "when" or "once" or "in response to a determination" or "in response to the occurrence of" that follows, depending on the context in which it is used. Similarly, the phrase "if it is determined" or "if [a described condition or event] is detected" can be construed to mean "once it is determined" or "in response to a determination" or "once [the described condition or event] is detected" or "in response to the occurrence of [the described condition or event]," depending on the context in which it is used.

[0052] The specific embodiments of the present disclosure will be described in detail below with reference to the drawings.

[0053] Therefore, the transmitter assembly of the embodiments of the present disclosure can achieve smaller size by the needle and the protective shell being relatively engaged in the housing channel of the housing, and can enhance the sealing of the transmitter assembly in a detachable structure.

[0054] For the purpose of clear description and easy understanding, in the following description, the side of the transmitter in contact with the human body is regarded as the vertical lower side of the transmitter, the side of the transmitter away from the human body is regarded as the vertical upper side of the transmitter, the direction parallel to the surface of the transmitter in contact with the human body is regarded as the horizontal direction, the direction along the horizontal direction towards the detection needle of the transmitter is regarded as the radial inward direction, and the direction along the horizontal direction away from the center of the detection needle of the transmitter is regarded as the radial outward direction. The position description of other related components will be based on the above description unless otherwise specified. The above description is only for the purpose of providing a reference direction for describing the relative position relationship of the structures, and is not a limitation on the actual arrangement of the structures of the embodiments of the present disclosure.

[0055] Referring to FIG. 1 and FIG. 2, FIG. 1 shows an exemplary cross-sectional view of the transmitter assembly of some embodiments of the present disclosure, and FIG. 2 shows an exemplary exploded view of the transmitter assembly of some embodiments of the present disclosure. In some embodiments, the transmitter assembly 100 comprises a transmitter 1. The transmitter 1 is an electronic device for being mounted on the human body and detecting physiological indicators such as blood glucose of the human body. The transmitter 1 comprises a housing 10 and a detection device 40, for example, wherein the detection device 40 is arranged inside the housing 10. The housing 10 has a housing channel 110 through the housing 10 along a first direction. In FIG. 1-2, the housing 10 has a housing channel 110 through the housing 10 along the vertical direction, and the detection device 40 comprises a detection needle 41 extending downward along the vertical direction and protruding out of the housing 10. The detection needle 41 is used to extend into the human body to detect the corresponding physiological indicators in the human body.

[0056] The transmitter assembly 100 further comprises a needle assisting assembly comprising a needle head 20 arranged on the upper side of the housing 10 along the vertical direction and a protective shell 30 arranged on the lower side of the housing 10. The needle head 20 comprises a puncture needle 23, for example, which is used to assist the detection needle 41 to pierce into 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. By sealing protection, the sterile state of the puncture needle 23 and the detection needle 41 before use is ensured, and the safety of use by the user is improved. The needle head 20 and the protective shell 30 are detachably engaged with each other in 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 head 20 and the protective shell 30 are limited by the housing 10 along the vertical direction.

[0057] The needle 20 and the protective shell 30 can be disengaged within the housing channel 110. In particular, the needle 20 and the protective shell 30 can be disengaged within the housing channel 110 by relative movement. For example, preferably, the needle 20 and the protective shell 30 are disengaged within the housing channel 110 by relative detachment from each other by relative rotation and the like. For another example, alternatively, the needle 20 and the protective shell 30 can be disengaged within the housing channel 110 by relative detachment from each other by pressing. For yet another example, alternatively, for example in other embodiments, the needle 20 and the protective shell 30 can be formed in a breakable connection, for example the material of the connecting portions of both can be broken by twisting and / or stretching, thereby disengaging the connection between them and the like. The present disclosure is not limited in the manner of disengaging the connection between the needle 20 and the protective shell 30, as long as they are connected to each other in a manner that they can be separated from each other.

[0058] Fig. 3 shows an exemplary exploded view of the transmitter assembly of the embodiment shown in Figs. 1-2. In particular, in some embodiments, the housing 10 is substantially flat and plate-like. Inside the housing 10 is fixedly arranged a detection device 40, which includes a detection needle 41 for implanting into a human body to contact a detection object, and a control circuit board 43 for processing and transmitting a detection parameter. The detection needle 41 is electrically connected to the control circuit board 43 at one end, and extends into the housing channel 110 and protrudes out of the lower surface of the housing 10 in a vertical direction towards the lower side of the transmitter 1. Alternatively, in some embodiments, in order to stably fix the transmitter 1 to a human body, a sticking member 15 can also be fixedly arranged at the lower side of the housing 10. The sticking member 15 can be substantially plate-like, for example, with one surface fixedly connected to the lower side of the housing 10, and the other surface can be provided with a sticky substance such as glue, for example, for sticking and fixing to the skin of a human body.

[0059] Preferably, the shell 10 further comprises an upper shell 11 and a lower shell 13 which are buckled to each other, and an auxiliary limiting member 12 which is arranged between the upper shell 11 and the lower shell 13. The upper shell 11, the lower shell 13 and the auxiliary limiting member 12 jointly enclose an assembly cavity for accommodating the detection device 40. Specifically, the upper shell 11, the lower shell 13 and the auxiliary limiting member 12 are all substantially flat, and each of them is provided with an opening which penetrates through in the vertical direction. The openings of the upper shell 11, the auxiliary limiting member 12 and the lower shell 13 are sequentially communicated in the first direction, thereby forming a shell channel 110 of the shell 10. The lower shell 13 is provided with a lower flange 137 which protrudes upward and surrounds the opening at a side adjacent to the opening, the upper shell 11 is provided with an upper flange 117 which protrudes downward and surrounds the opening at a portion adjacent to the opening, and 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 is spaced apart from the lower end surface of the upper flange 117 in the vertical direction, and is fixedly connected with the upper flange 117 in the spacing space therebetween by means of glue injection, clamping or the like. Meanwhile, the outer peripheral edge portions of the upper shell 11 and the lower shell 13 also protrude relative to each other and are sealed by means of glue injection or the like. In this way, the auxiliary limiting member 12 can support the upper shell 11 in the vertical direction, prevent the upper shell 11 from being directly acted on by external pressing force and deformed or damaged, and further protect the internal electronic device from being extruded and damaged. The upper shell 11, the lower shell 13 and the auxiliary limiting member can seal and isolate the assembly cavity from the outside.

[0060] Referring to FIG. 4, a perspective view of a needle of the transmitter assembly of FIGS. 1-3 is shown. The needle 20 of the needle assembly includes a puncture needle 23 and a needle seat 21 for fixing the puncture needle 23, and the puncture needle 23 is made of a metal material such as medical-grade stainless steel. The puncture needle 23 includes a needle body 233 which is substantially long strip-shaped, and the needle body 233 is provided with a sharp needle tip 231 at one end and a needle tail 236 for connecting the needle body 233 with the needle seat 21 at the other end.

[0061] The needle body 233 is designed to at least partially accommodate the detection needle 41. Specifically, the needle body 233 is designed to have a needle accommodating space in the vertical direction (i.e. the extending direction of the needle body), which can accommodate the detection needle 41 in the vertical direction. For example, preferably, the needle accommodating space is a needle accommodating groove 230 provided on the needle body 233 and extending through the needle body 233 towards the needle tip 231. The cross-sectional shape, size and extending length of the needle accommodating groove 230 are matched with those of the detection needle 41 of the emitter 1, so as to at least partially accommodate the part of the detection needle 41 extending in the vertical direction in the needle accommodating groove 230. Preferably, the needle accommodating groove 230 has a substantially U-shaped cross-section, so that the detection needle 41 can be placed in the needle accommodating groove 230 through the opening of the needle accommodating groove 230. Those skilled in the art understand that the specific shape, size and extending length of the needle body 233 and the needle accommodating groove 230 are not limited in the present disclosure. For example, alternatively, the needle accommodating groove 230 can also have a substantially L-shaped cross-section; or a substantially C-shaped cross-section. Alternatively, the needle accommodating groove 230 can be provided with other shapes such as V-shaped or semi-circular shape, or can be provided with a size larger than the detection needle to improve the convenience of assembly, or can be provided with a length longer than the detection needle to ensure that the detection needle does not touch the human skin before puncture, etc. In particular, it is required that the needle body 233 can surround the detection needle 41 and assist the detection needle 41 to complete the puncture. The needle seat 21 is made of engineering plastic such as polycarbonate, which is connected with the needle tail 236 of the puncture needle 23 and integrally formed with the needle body 233 by injection molding.

[0062] In addition, alternatively, the needle body 233 can also be designed as a hollow structure, i.e. the needle body 233 is designed as a tube, and the accommodating space in the tube extends through the needle body 233 towards the needle tip 231. The cross-sectional shape, size and extending length of the accommodating space are matched with those of the detection needle 41 of the emitter 1, so as to accommodate the part of the detection needle 41 extending in the vertical direction in the needle accommodating groove 230.

[0063] The needle seat 21 is also designed to at least partially accommodate the detection needle 41. Specifically, the needle seat 21 is designed to have a needle accommodating space in the vertical direction, which can accommodate the detection needle 41 in the vertical direction. For example, preferably, the accommodating space is a needle guide groove 214 provided on the needle seat 21 for accommodating the detection needle 41. The needle guide groove 214 is a recess on the needle seat and extends in a direction and angle consistent with the needle accommodating groove 230, and the needle body 233 is partially exposed in the needle guide groove 214. For example, the needle body 233 partially covers the bottom and side wall of the needle accommodating groove 230, exposing the needle accommodating groove 230 from the needle guide groove 214. The radial extension direction of the needle guide groove 214 is at an angle to the radial side of the positioning section 213 for positioning. Such a design can form a larger rotational fitting angle between the upper abutting surface 215 and the lower abutting surface 32 to increase the fitting strength between the needle 20 and the protective shell 30. At the same time, such a design also allows the needle guide groove 214 to have a greater radial depth in the needle seat 21, so that the outer periphery of the needle body 233 is thicker in combination with the material of the needle body 233, improving the connection strength of the needle body 233 and the needle seat 21. The setting angle of the needle guide groove 214 corresponds to the extension angle of the detection needle 41, so that the detection needle 41 can extend radially into the needle guide groove 214. Optionally, the two inner side walls of the needle guide groove 214 can also be provided with a certain inclination angle to enlarge the opening towards the detection needle 41, providing guidance for the extension of the detection needle 41, and facilitating the positioning of the detection needle 41 relative to the needle accommodating groove 214 during installation.

[0064] Figure 5 shows a perspective view of the protective shell assembly of the transmitter assembly in Figures 1-4. The protective shell assembly includes the protective shell 30 and a first seal 51 fixedly provided on the upper side of the protective shell 30.

[0065] The needle 20 and the protective shell 30 are rotatably coupled, and a limiting structure is designed between the needle 20 and the protective shell 30, so that the needle 20 can rotate within the protective shell 30 within a limited range, and the needle body 233 is released.

[0066] Specifically, the needle 20 has a first joint and the protective shell 30 has a second joint. The first joint and the second joint are capable of engaging with each other in the housing hole 110. The first joint includes, for example, a blocking block 211 formed on the lower side of the needle seat 21 of the needle 20. The blocking block 211 protrudes radially outward from a joint body 217 which is substantially cylindrical. The second joint includes, for example, a locking block 31 formed on the upper side of the protective shell 30. The locking block 31 extends upward from the second joint and further protrudes radially inward. The blocking block 211 of the first joint and the locking block 31 of the second joint are vertically aligned. The first joint is further provided with a clearance position for the locking block 31 of the second joint to engage. For example, in some embodiments, the first joint includes at least one blocking block 211 which protrudes radially outward from the side of the joint body 217, and the upper side of the blocking block 211 has an upper abutting surface 215 which is vertically upward. The second joint includes a locking block 31 which protrudes vertically upward from the upper end surface of the protective shell 30, and the locking block 31 is inclined radially inward while protruding upward to form a lower abutting surface 32 which is vertically downward. The shapes of the upper abutting surface 215 and the lower abutting surface 32 are matched and can be various designs. For example, the upper abutting surface 215 and the lower abutting surface 32 are two conical surfaces which are matched in shape. Alternatively, the upper abutting surface 215 and the lower abutting surface 32 are two partial spherical surfaces, pyramidal surfaces, etc. which are matched in shape.

[0067] The cross-sectional size and shape of the first joint and the second joint in the horizontal direction are adapted to the size of the opening of the housing hole 110, so that the first joint and the second joint are at least partially inserted into the housing hole 110. By setting the cross-sectional area and relative arrangement position of the blocking block 211 and the locking block 31, when the first joint and the second joint are both inserted into the housing hole 110, the blocking block 211 and the locking block 31 are vertically away from each other. Thus, the first joint and the second joint continue to move vertically towards each other until they are partially interleaved with each other. Further, the first joint and the second joint can be relatively rotated until the upper abutting surface 215 of the blocking block 211 and the lower abutting surface 32 of the locking block 31 are vertically abutted against each other.

[0068] Meanwhile, the lower side of the needle seat 21 is further provided with an upward pushing top 219, and the upper side of the protective shell 30 is provided with a downward pushing top 309. The upward pushing top 219 is used to push the needle seat 21 vertically downward towards the housing 10 after the first joint is inserted into the housing hole 110. Similarly, the downward pushing top 309 is used to push the protective shell 30 vertically upward towards the housing 10 after the second joint is inserted into the housing hole 110. After the first joint and the second joint are inserted into the housing hole 110 from both sides of the housing 10, the first joint and the second joint are engaged and relatively rotated from the unlocked position to a locked position.

[0069] Specifically, when the blocking block 211 of the first joint and the locking block 31 of the second joint are mutually avoided in the vertical direction, the position is the unlocking position, and the first joint and the second joint are relatively separated in the vertical direction in the shell channel 110. And the first joint and the second joint are relatively rotated in the shell channel 110 until the upper abutting surface 215 of the blocking block 211 can abut against the lower abutting surface 32 of the locking block 31, and the position is the locking position, at this time, the relative separation of the first joint and the second joint in the vertical direction in the shell channel 110 is blocked by each other. At the same time, the upper push top 219 of the needle seat 21 and the lower push top 309 of the protective shell 30 push the shell 10 from the upper and lower directions respectively, so that the needle 20 and the protective shell 30 cannot move relative to the shell 10 in the vertical direction, thereby realizing the locking of the entire launcher assembly in the vertical direction.

[0070] Meanwhile, referring to FIG. 4, the first joint of the needle seat 21 includes two blocking blocks 211, and the second joint of the protective shell 30 correspondingly includes two locking blocks 31, wherein the two blocking blocks 211 are symmetrically arranged on both sides of the joint body 217, for example, relative to the vertical direction. Thus, in the locking position, the connection force between the blocking block 211 and the locking block 31 in the vertical direction can be evenly distributed to the joint body 217, avoiding the inclination caused by unbalanced force when holding or releasing the protective shell 30. Those skilled in the art understand that although the embodiments in FIGS. 1-4 describe a preferred scheme of providing two blocking blocks 211 and two locking blocks 31, those skilled in the art can understand that there can be other optional schemes, and the present 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 the corresponding locking block 31 are provided, or more blocking blocks 211 and the corresponding locking blocks 31 are provided, or only one blocking block 211 is provided, and multiple locking blocks 31 are simultaneously engaged with the blocking block 211, etc., as long as the first joint and the second joint can be locked or released in the vertical direction by rotation.

[0071] The launching assembly in the present disclosure further comprises a guiding structure for guiding the second joint when the first joint and the second joint are engaged and relatively rotated. Preferably, the guiding structure can also automatically center the upper guiding surface 133 when it matches the lower guiding surface 33. Fig. 6 shows a perspective view of the bottom of the housing of the launching assembly of the embodiment shown in Figs. 1-5. In some embodiments, the upper side of the locking block 31 is further provided with a lower guiding surface 33 in the shape of a partial conical surface, and the inner side of the housing channel 110 is provided with a guiding portion protruding radially inward, and the lower side of the guiding portion is provided with an upper guiding surface 133 corresponding to the lower guiding surface 33. The upper guiding surface 133 and the lower guiding surface 33 are used to guide the second joint when the first joint and the second joint are engaged and relatively rotated. When the protective shell 30 is installed, the second joint is adjusted in position towards the center of the two guiding surfaces as it moves in the vertical direction by the shape cooperation between the upper guiding surface 133 and the lower guiding surface 33. Thus, the situation that the protective shell 30 and the needle 20 cannot be aligned when the protective shell 30 is installed is reduced. When the second joint is rotated from the unlocked position to the locked position or from the locked position to the unlocked position, the contact between the upper guiding surface 133 and the lower guiding surface 33 ensures that the second joint cannot be radially offset or tilted relative to the launcher 1.

[0072] Optionally, the upper part of the protective shell 30 further comprises a guiding portion, and the housing 10 can be provided with a positioning portion for cooperating with the guiding portion, which can be used to provide a pressing force for relatively pressing the first joint and the second joint when the first joint and the second joint are relatively rotated. Specifically, in some embodiments, the guiding portion comprises a first guiding block 34 protruding upward from the upper end of the protective shell 30 with a low height, and the positioning portion comprises a first positioning block 132 extending from the housing 10 towards the first guiding block 34. The first positioning block 132 is arranged on the rotational movement path of the first guiding block 34, and both or one of them has a guiding slope 35 arranged at the end. Thus, when the second joint is rotated relative to the housing 10, the first positioning block 132 contacts the first guiding block 34 and moves to the upper surface of the first guiding block 34 by the guiding slope 35. The first positioning block 132 can be abutted against the guiding surface towards the lower side of the housing 10, so that the protective shell 30 is subjected to a downward pressure. The downward pressure will be transmitted to the contact portion of the locking block 31 and the blocking block 211, increasing the contact pressure between the upper abutting surface 215 of the blocking block 211 and the lower abutting surface 32 of the locking block 31.

[0073] Meanwhile, when the locking block 31 engages with the blocking 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 virtue of the contact between them. That is, when there is a contact pressure between the locking block 31 and the blocking block 211 in the axial direction, the contact pressure can cause the locking block 31 to elastically deform radially, 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 in the radial direction. Thus, the relative deflection or disengagement between the lower guide surface 33 and the upper guide surface 133 due to the elastic deformation of the locking block 31 is prevented.

[0074] Those skilled in the art understand that the above describes an embodiment in which the upper guide surface 133 is provided as at least partially a conical surface, and the lower guide surface 33 is provided as a shape matching thereto. The conical surface design has the effect of self-centering the upper guide surface 133 when it matches the lower guide surface 33. Similarly, in other alternative embodiments, the upper guide surface is provided as other shapes that can have the effect of self-centering. For example, a partial spherical surface, a circular arc surface, or provided as including multiple inclined sub-guide surfaces opposite to each other, and the lower guide surface 33 is formed to match thereto, so that the upper guide surface 133 and the lower guide surface 33 form a self-centering abutment therebetween. In some embodiments, at least one of the upper abutment surface and the lower abutment surface is formed as a rotational curved surface, and the two can form a sliding fit with each other by virtue of the rotational curved surface. For example, one of them is formed as a conical surface, and the other is formed as a corresponding conical surface, or other rotational curved surfaces such as a spherical surface, as long as a sliding fit therebetween can be formed, thereby ensuring that the two maintain stable contact during relative rotation and preventing the occurrence of jamming or bouncing phenomena.

[0075] Alternatively, the firing assembly further includes a circumferential stop mechanism to prevent the second joint from rotating reversely relative to the housing 10. Preferably, the first guide block 34 and the first positioning block 132 constitute the circumferential stop mechanism. For example, when the second joint rotates relative to the housing 10 to the point where the first positioning block 132 contacts the end surface or guide slope 35 of the guide block, it will be subject to a certain resistance in the rotation direction. Only when the driving force driving its rotation causes the locking block 31 to elastically deform in the vertical direction by a distance greater than the height difference between the first positioning block 132 and the first guide block 34, it will move across the end surface or guide slope 35 to the upper surface of the guide block. Thus, the first guide block 34 circumferentially positions with the first positioning block 132, and by setting one end surface of the first guide block 34 at the corresponding position when the rotation is completed, the second joint is prevented from rotating reversely relative to the housing 10.

[0076] The skilled in the art understand that in some embodiments, when the upper abutting surface 215 and the lower abutting surface 32 are conical surfaces that match each other, the cooperation of the guide and the positioning part provides additional cooperation pressure in the vertical direction. That is, when the first joint and the second joint rotate relative to each other, the upper abutting surface 215 and the lower abutting surface 32 are automatically centered by the cooperation of the two conical surfaces due to the relative pushing force. Thus, when the protective shell 30 is screwed on or unlocked, the protective shell 30 can keep its relative angle with the first needle 20 unchanged by the cooperation of the two conical surfaces, thereby greatly reducing the situation that the protective shell 30 is skewed or even misaligned to touch the puncture needle 23 when being screwed.

[0077] In addition, the upper abutting surface 215 and the lower abutting surface 32 are conical surfaces that match each other, which also increases the contact area between the first joint and the second joint. At the same time, due to the interaction of the two conical surfaces, the first joint and the second joint not only support each other in the vertical direction when in the locked position, but also support each other in the radial direction, thereby further improving the connection strength between the first joint and the second joint. Further, when the upper guide surface 133 is also a conical surface, the upper guide surface 133 can also guide the upper abutting surface 215 when the first joint is pulled out in the vertical direction, that is, even if the first joint is skewed relative to the shell due to the incorrect pulling direction when being pulled out, the first joint is guided back to the vertical direction by the contact between the conical surface of the upper guide surface 133 and the conical surface of the upper abutting surface 215, thereby further preventing the puncture needle from being stuck or skewed when being pulled out.

[0078] Optionally, the emitting assembly can also be provided with a screwing-to-position prompting structure to reduce the possibility of damaging the second joint due to over-rotation of the protective shell 30 during installation. For example, preferably, in some embodiments, the guiding portion further comprises a second guiding block 37, and the housing 10 is provided with a second positioning block 131 spaced from the first positioning block 132. The second guiding block 37 is spaced from the first guiding block 34, and a guiding positioning groove 38 is defined between the two, which is sized and shaped to match the second positioning block 131. Thus, when the second joint is rotated to the position where the guiding positioning groove 38 is aligned with the second positioning block 131, it is held in a pre-locked position by the guiding positioning groove 38 and cannot be easily rotated further or reversed. Moreover, when the second joint is rotated to the position where the guiding positioning groove 38 is aligned with the second positioning block 131 during assembly, the assembler can feel the vibration caused by the engagement of the second positioning block 131 with the guiding positioning groove 38, which prompts the assembler that the installation is complete. By adjusting the position of the guiding positioning groove 38, the pre-locked angle of the second joint relative to the housing 10 is correspondingly adjusted in the direction of rotation. In some embodiments, the pre-locked position corresponds to the locked position of the second joint relative to the first joint. Thus, when the second joint is rotated to the pre-locked position relative to the housing 10, it is also rotated to the locked position relative to the first joint inserted into the housing channel 110. Thus, the guiding positioning groove 38 also provides a screwing-to-position prompting function for installation, reducing the possibility of damaging the second joint due to over-rotation of the protective shell 30 during installation.

[0079] Optionally, in some embodiments, the first guiding block 34 and the second guiding block 37 of the guiding portion are both parts of the proximal outer peripheral edge of the upper end surface of the second joint. Those skilled in the art understand that the present disclosure does not limit the specific structure of the guiding portion, for example, it comprises more guiding blocks and positioning blocks, or the guiding portion comprises a continuous curved surface formed on the upper end surface of the second joint, or the guiding portion is provided as a continuous protrusion protruding radially outward from the radial side wall of the second joint, etc. It is only necessary to be able to abut the positioning portion on the housing 10 in the vertical direction to provide a pushing force, and / or to form a pre-lock and / or non-return in the direction of rotation.

[0080] Optionally, in some embodiments, the housing 10 further comprises a first circumferential limiting mechanism capable of limiting the rotation of the first joint in the rotation direction of the first joint, for limiting the rotation angle of the first joint relative to the housing 10. Specifically, the first circumferential limiting mechanism of the housing 10 is a circumferential limiting hole (e.g. 136, 121). The circumferential limiting hole (e.g. 136, 121) is disposed, for example, at the center of the housing 10, and is in communication with the housing hole 110 in the vertical direction. The first joint is provided with a limiting segment 213, and the shape of the limiting segment 213 is in shape cooperation with the cross-sectional shape of the circumferential limiting hole (e.g. 136, 121), so that after the first joint is inserted into the housing hole 110, the circumferential limiting hole (e.g. 136, 121) engages and limits the limiting segment 213, preventing the relative rotation of the first joint and the housing 10. In some embodiments, the cross-sectional shape of the circumferential limiting hole (e.g. 136, 121) is formed, for example, as a substantially rounded rectangle, and the cross-sectional shape of the limiting segment 213 on the first joint is also formed as a rounded rectangle. It is understood that the circumferential limiting hole (e.g. 136, 121) and the limiting segment 213 are also provided with other cross-sectional shapes, such as a triangle or a rhombus, etc. In some other embodiments, the circumferential limiting hole (e.g. 136, 121) is not in shape cooperation with the limiting segment 213, for example, the circumferential limiting hole (e.g. 136, 121) is provided with a long slot, and the limiting segment 213 is provided with an abutting surface abutting against two sides of the long slot. For example, the circumferential limiting hole (e.g. 136, 121) and the limiting segment 213 are provided to be capable of rotating by a certain angle, etc.

[0081] Optionally, in some embodiments, the opening of the upper housing 11 is formed as a circumferential limiting hole 136 for circumferentially limiting the first joint. Similarly, the opening of the auxiliary limiting member 12 is formed as a circumferential limiting hole 121 for circumferentially limiting the first joint. The width dimension of the circumferential limiting holes of the auxiliary limiting member 12 and the upper housing 11 is greater than the width dimension of the first joint, so that the first joint will not be stuck or move unsmoothly when it is withdrawn from the circumferential limiting holes due to slight tilting or misalignment. Further, the side edges of the circumferential limiting holes of the auxiliary limiting member 12 and the upper housing 11 are further provided with inclined avoidance slopes 121a and 136a inclined towards the first joint, so as to facilitate the withdrawal of the first joint relative to the housing, so as to prevent the circumferential surface of the housing hole 110 from abutting against the stop block 211 in the vertical direction when the stop block 211 is moved out of the housing hole 110, and to enhance the smoothness of the needle withdrawal action.

[0082] Optionally, in some embodiments, the housing 10 further comprises a second circumferential limiting mechanism for abutting against the protective shell 30 along the rotation direction of the protective shell 30 to limit the rotation angle thereof. For example, the housing 10 is provided with a circumferential limiting block protruding radially inwardly towards the housing channel 110, which is arranged, for example, on the path of rotation of the locking block 31 of the second joint, thereby limiting the rotation angle of the second joint relative to the housing 10. In some embodiments, the first limiting block 132 simultaneously serves as a circumferential limiting block, and the second circumferential limiting mechanism comprises two circumferential limiting blocks, each of which is provided with a first limiting side 134 for abutting against a side of the locking block 31. The position of the first limiting side 134 is arranged, for example, in correspondence with the first circumferential limiting mechanism, such that when the second joint is rotated relative to the first joint to the locked position, the first limiting side 134 abuts against the side of the locking block 31. Thus, over-rotation when installing the locking protective shell 30 can be prevented. Similarly, each circumferential limiting block is provided with a second limiting side 135 for abutting against the other side of the locking block 31 when the locking block 31 is rotated to the unlocked position, thereby preventing over-rotation thereof.

[0083] Optionally, in some embodiments, the transmitter assembly further comprises a second sealing member 52. The first sealing member 51 is arranged between the protective shell 30 and the housing 10 along the vertical direction, and similarly, the second sealing member 52 is arranged, for example, between the needle 20 and the housing 10 along the vertical direction. Specifically, in some embodiments, the needle 20 is provided with a sealing bottom surface 218 facing downward along the vertical direction, and the auxiliary limiting member 12 of the housing 10 is provided with a sealing member arrangement surface facing upward, and the second sealing member 52 is, for example, a sealing ring, the upper side of which abuts against the sealing bottom surface 218, and the lower side of which is fixed to the sealing member arrangement surface of the auxiliary limiting member 12 by injection molding.

[0084] Similarly, optionally, in some embodiments, the protective shell 30 is provided with a sealing top surface 39 facing upward along the vertical direction, and the housing 10 is provided with a second sealing member arrangement surface facing downward, and the first sealing member 51 is a sealing ring, the upper side of which abuts against the second sealing member arrangement surface, and the lower side of which is in contact with the sealing top surface 39 and is fixedly connected to the protective shell 30 by injection molding or the like. In addition, the protective shell 30 is provided with a sealing flange protruding radially outwardly, the upper end surface of which is the sealing top surface 39 for fixedly connecting to the lower side of the sealing ring, and the portion of the radial side wall of the protective shell 30 adjacent to the sealing top surface 39 is arranged to abut against the radial inner side of the sealing ring. In some embodiments, an adhesive portion is additionally arranged between the side wall and the radial inner side of the sealing ring to improve the connection strength therebetween and to improve the sealing effect. In addition, the inner side of the sealing ring is also adjusted in size to be tightly fitted around the outer periphery of the side wall of the protective shell 30 by means of elasticity, thereby also increasing the connection strength and the sealing effect.

[0085] Referring to FIG. 7 and FIG. 8, FIG. 7 shows a perspective view of the emitter of the emitter assembly in FIG. 1-6, in which the upper shell is removed for clarity to show its internal structure; FIG. 8 shows a perspective view of the auxiliary limiting piece of the emitter assembly in FIG. 1-7. Optionally, in some embodiments, the lower shell 13 further comprises a probe guide portion having a needle groove 139 that is shaped to fit the detection needle 41 and a glue injection groove 138 that is in communication with the needle groove 139. The probe guide portion, for example, comprises two successively communicating grooves that extend radially from the inner side of the side wall of the lower flange 137 to the shell hole 110. The groove close to the assembly cavity is the glue injection groove 138, and the groove close to the shell hole 110 is the needle groove 139. The detection needle 41 that extends out of the control circuit board 43 of the detection device 40 successively passes through the glue injection groove 138 and the needle groove 139 and finally extends into the shell hole 110. The width of the needle groove 139 is 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 is greater than the width of the needle groove 139, so as to facilitate the injection of glue into the glue injection groove 138 for fixation. In addition, the bottom surface of the auxiliary limiting piece 12 is further provided with an auxiliary needle groove 123 for at least partially accommodating the detection needle 41 in the shell hole 110 to limit and protect the detection needle 41 from being touched. In actual production, the detection needle 41 is first fixed by means of an adhesive to the needle groove 139 of the lower shell 13 and the auxiliary needle groove 123 of the auxiliary limiting piece 12, and then sealed by injection.

[0086] The emitter assembly of some embodiments of the present disclosure achieves sealing and fixation of the key parts of the emitter assembly in a simple way by setting the needle head and the protective shell in the shell hole in relative combination and locking, improves production efficiency, reduces the difficulty of use, thereby reducing the production and use cost, and also improves the stability of the product.

[0087] Referring to FIG. 9, FIG. 9 shows a side view of a detection assembly according to some embodiments of the present disclosure. In some embodiments, the detection assembly 200 comprises the emitter assembly 100 of some embodiments of the present disclosure and an emitter mounting assembly 80. The emitter assembly 100 has been described in detail in FIG. 1-8 and the corresponding description. The emitter assembly 100 is detachably mounted to the emitter mounting assembly 80, and the emitter mounting assembly 80 is used to transfer the emitter 1 to the human body.

[0088] While several embodiments of the disclosure have been shown and described herein, it is to be understood that the embodiments are merely exemplary. Numerous changes, substitutions and equivalents will occur to those skilled in the art without departing from the spirit and scope of the disclosure. It should be understood that in the process of rendering the present disclosure substantially self- consistent, the various alternative, modifications and equivalents have been accommodated so as to serve the purposes of the present disclosure. Accordingly, the attached claims are intended to cover all such alternatives, modifications and equivalents as falling within the true scope of the disclosure.

Claims

1. A transmitter assembly, characterized by The transmitter (1) comprises: a housing (10) comprising a housing channel (110) extending through the housing (10) along a first direction; and a detection device (40) comprising a detection needle (41) protruding from the housing (10) along the first direction through the housing channel (110); and a needle assembly comprising: a protective shell (30) disposed on both sides of the housing (10) along the first direction; a needle head (20) disposed on both sides of the housing (10) along the first direction and separably engaged with the protective shell (30) in the housing channel (110); and wherein the needle head (20) and the protective shell (30) are limited by the housing (10) along the first direction.

2. The transmitter assembly according to claim 1, wherein: the needle head (20) has a first joint; the upper portion of the protective shell (30) has a second joint; and the first joint and the second joint are engaged in the housing channel (110) and can be switched relative to each other between a locked position and an unlocked position.

3. The transmitter assembly according to any one of claims 1-2, wherein: at least one blocking block (211) is disposed on the first joint; at least one locking block (31) is disposed on the second joint; and after rotating relative to the at least one blocking block (211) to the locked position, the at least one locking block (31) abuts against the at least one blocking block (211) to lock the second joint along the first direction.

4. The transmitter assembly according to any one of claims 1-3, wherein: the at least one blocking block (211) comprises an upper abutting surface (215); the at least one locking piece comprises a lower abutting surface (32) corresponding to the upper abutting surface (215); and the at least one locking block (31) abuts against the blocking block (211) by the contact between the upper abutting surface (215) and the lower abutting surface (32). the upper abutting surface (215) and the lower abutting surface (32) abut each other and are automatically centered.

5. The emitter package of any of claims 1-4, wherein, 6. The transmitter assembly according to any one of claims 1-5, wherein: the width of the at least one blocking block (211) along a direction perpendicular to the first direction is less than the width of the housing channel (110); and an avoidance slope is disposed inside the housing channel (110) to prevent the peripheral surface of the housing channel (110) from abutting against the at least one blocking block (211) in the vertical direction when the at least one blocking block (211) is moved out of the housing channel (110).

7. The transmitter assembly according to any one of claims 1-6, wherein: an upper guide surface (133) is disposed inside the housing channel (110) along the first direction towards the protective shell (30); a lower guide surface (33) is disposed on the at least one locking block (31) towards the upper guide surface (133); and ​ ​ The upper guide surface (133) is shaped to match the lower guide surface (33), and the upper guide surface (133) guides the positioning of the lower guide surface (33) when the second joint extends into the housing channel (110).

8. The emitter package of any of claims 1-7, wherein, The needle (20) further comprises a needle seat (21); the needle seat (21) has: a radial side surface that forms a rotation-preventing fit with the housing channel (110); and a needle guide groove (214) formed by a lateral surface of the needle seat (21); the radial extension direction of the needle guide groove (214) forms an angle with the needle seat (21).

9. The transmitter assembly of any one of claims 1-8, wherein, The protective shell (30) further comprises a guide portion; The housing (10) is provided with a positioning block (132) corresponding to the guide portion in the first direction; The positioning block (132) abuts against the guide portion when the guide portion rotates.

10. The emitter package of any of claims 1-9, wherein, The guide portion comprises: a guide positioning groove (38) shaped to match the positioning block (132), When the first joint rotates relative to the second joint until the positioning block (132) is aligned with the guide positioning groove (38), the positioning block (132) extends into the guide positioning groove (38), and is releasably positioned by the guide positioning groove (38) in the rotation direction.

11. The emitter package of any of claims 1-10, wherein, The housing (10) comprises a first circumferential limiting mechanism; the first circumferential limiting mechanism can limit the needle (20) in the rotation direction thereof.

12. The emitter package of any of claims 1-11, wherein, The first circumferential limiting mechanism is a circumferential limiting hole, and The circumferential limiting hole is shaped to match the needle (20) to rotation-preventingly connect with the needle (20).

13. The emitter package of any of claims 1-12, wherein, The housing (10) further comprises a second circumferential limiting mechanism; The protective shell (30) comprises the at least one locking block (31) extending perpendicularly to the first direction; and The second circumferential limiting mechanism is used to abut against the at least one locking block (31) in the rotation direction of the protective shell (30) to limit the rotation angle of the at least one locking block (31).

14. The emitter assembly of any of claims 1-13, wherein, Further comprising a first seal (51) and a second seal (52); The first seal (51) is arranged between the protective shell (30) and the housing (10) in the first direction; The second seal (52) is arranged between the needle (20) and the housing (10) in the first direction to seal the housing channel (110).

15. The emitter package of any of claims 1-14, wherein, The housing (10) further comprises an auxiliary limiting member (12), and the auxiliary limiting member (12) is further provided with a circumferential limiting hole for limiting the rotation angle of the needle (20) in the housing channel (110).

16. A detection assembly comprising: comprising: a transmitter assembly according to any one of claims 1-15; and a transmitter mounting assembly (80); The transmitter assembly is detachably mounted on the transmitter mounting assembly (80), and the transmitter mounting assembly (80) is configured to fix the transmitter (1) to a human body surface.

17. A transmitter assembly comprising: comprising: a transmitter (1) comprising a housing (10); and a needle assisting assembly comprising: a protective shell (30) provided with at least one locking block (31); and and The needle (20) is arranged on both sides of the shell (10) in the first direction, and at least one blocking block (211) is arranged on the needle (20); The needle (20) is rotatably connected with the protective shell (30) in the first direction, so that the blocking block (211) can abut against the locking block (31) in the first direction, thereby being locked with the protective shell in the first direction.

18. The transmitter assembly of claim 17, wherein, The shell (10) has a shell channel (110) extending through the shell (10) in the first direction; and The needle (20) can be horizontally rotatably connected with the protective shell (30) in the shell channel (110).

19. The transmitter assembly of claim 18, wherein The blocking block (211) comprises an inclined upper abutting surface (215); The locking member comprises an inclined lower abutting surface (32) corresponding to the upper abutting surface (215); and The blocking block (211) abuts against the locking block (31) through the contact between the upper abutting surface (215) and the lower abutting surface (32).

20. The transmitter assembly of claim 18, wherein The blocking block (211) comprises an upper abutting surface (215), The locking member comprises a lower abutting surface (32) corresponding to the upper abutting surface (215), At least one of the upper abutting surface (215) or the lower abutting surface (32) is a rotating curved surface, so that the upper abutting surface (215) and the lower abutting surface (32) can form a sliding fit through the rotating curved surface.

21. The transmitter assembly of any one of claims 17 to 20, wherein The needle (20) comprises at least two blocking blocks (211); The at least two blocking blocks (211) are angularly spaced around the axis of the needle (20) and comprise an upper abutting surface (215); The locking member comprises a lower abutting surface (32) corresponding to the upper abutting surface (215); The blocking block (211) abuts against the locking block (31) through the contact between the upper abutting surface (215) and the lower abutting surface (32).

22. The transmitter assembly of any one of claims 17 to 20, wherein, The upper abutting surface (215) and the lower abutting surface (32) are matched with each other to automatically center.

23. The transmitter assembly of any one of claims 17-20, wherein, The protective shell (30) further comprises a guide portion; The shell (10) comprises a positioning block (132) corresponding to the guide portion in the first direction; and The positioning block (132) is configured to abut against the guide portion when the guide portion rotates.

24. The transmitter assembly of any one of claims 17 to 20, wherein The shell (10) comprises a first circumferential limiting mechanism; and The first circumferential limiting mechanism can limit the rotation angle of the needle (20) in the rotation direction of the needle (20).

25. The transmitter assembly of claim 24, wherein, The shell (10) further comprises a second circumferential limiting mechanism; The protective shell (30) comprises a locking block (31) extending perpendicularly to the first direction; and The second circumferential limiting mechanism is used to abut against the locking block (31) in the rotation direction of the protective shell (30) to limit the rotation angle thereof.

26. The transmitter assembly of any one of claims 17-20, wherein, Also included are: a first seal (51) and a second seal (52); the first seal (51) is disposed between the protective shell (30) and the housing (10) in a first direction, and the second seal (52) is disposed between the needle (20) and the housing (10) in the first direction, for sealing the housing (10).

27. A detection assembly comprising: Included are: a transmitter mounting assembly (80); and a transmitter assembly according to any of claims 17-26, removably mounted to the transmitter mounting assembly (80); the transmitter mounting assembly (80) is configured to secure the transmitter (1) to a human body surface.

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