CN115778440A

CN115778440A - Sampling device

Info

Publication number: CN115778440A
Application number: CN202211663529.2A
Authority: CN
Inventors: 吉斌; 文志勇; 李孟达
Original assignee: Chongqing Weikebei Technology Co ltd
Current assignee: Chongqing Weikebei Technology Co ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-03-14
Anticipated expiration: 2042-12-23

Abstract

The invention discloses sampling equipment, which comprises a sampling swab and a sample tube, wherein the sampling swab is provided with a breakpoint part and a first positioning part close to the breakpoint part, and the first positioning part is arranged along the circumferential direction of the sampling swab; the sample tube is provided with an accommodating cavity and a communication port, the communication port is communicated with the accommodating cavity, and a second positioning part is arranged on the inner surface, close to the communication port, of the sample tube in the circumferential direction; wherein, when the sampling swab stretches into from the intercommunication mouth and holds the intracavity, first location portion and the spacing cooperation of second location portion to make breakpoint portion card locate the edge of intercommunication mouth. In this application, through the cooperation of first location portion and second location portion, can realize quick location breakpoint portion, make sampling swab be cut off from breakpoint portion fast to reduce positioning time, improve sampling efficiency.

Description

Sampling device

Technical Field

The invention relates to the technical field of medical instruments, in particular to sampling equipment.

Background

However, the existing sample tube and swab are low in matching breaking efficiency, although the swab is mostly provided with breaking points which are easy to break, the breaking points are not easy to locate, and workers are not easy to break when breaking the sampling brush head of the swab, so that the efficiency of sample collection is obviously influenced under the condition of a large number of collection times every day at present.

Disclosure of Invention

The invention mainly aims to provide sampling equipment and aims to improve sampling efficiency.

In order to achieve the above object, the present invention provides a sampling apparatus comprising:

the sampling swab is provided with a breakpoint part and a first positioning part close to the breakpoint part, and the first positioning part is arranged along the circumferential direction of the sampling swab; and

the sample tube is provided with an accommodating cavity and a communication opening, the communication opening is communicated with the accommodating cavity, and a second positioning part is arranged on the sample tube in the circumferential direction close to the inner surface of the communication opening;

when the sampling swab extends into the accommodating cavity from the communication port, the first positioning portion is in limit fit with the second positioning portion, so that the breakpoint portion is clamped on the edge of the communication port.

In an embodiment, the first positioning portion is a snap ring protruding from the sampling swab, and the snap ring extends along the circumferential direction of the sampling swab;

the second positioning portion is a catching groove formed in the inner surface, close to the communication opening, of the sample tube, and the catching groove extends along the circumferential direction of the communication opening.

In one embodiment, a cutter head is arranged at the edge of the communication port and is arranged along the circumferential direction of the communication port and used for cutting off the sampling brush head.

In one embodiment, the sample tube comprises:

the tube body is provided with an accommodating cavity, and one end of the tube body is provided with the communication port; and

the pipe cap, the pipe cap is equipped with first mounting groove, the diapire of first mounting groove is equipped with the boss, the boss with form first installation annular between the lateral wall of mounting groove, the body is close to the one end of intercommunication mouth stretches into during the annular of first installation, the boss with intercommunication mouth interference fit.

In an embodiment, one end of the boss, which is far away from the bottom wall of the first mounting groove, is provided with a convex ring which is arranged towards the inner side of the first mounting ring groove in a protruding manner, and when one end of the pipe body, which is close to the communication port, extends into the first mounting ring groove, the convex ring is clamped on the second positioning portion.

In one embodiment, the inner side wall of the first mounting groove is further provided with a first guide surface, the outer surface of the pipe body near the communication port is convexly provided with a second guide surface, the first guide surface and the second guide surface are both arranged in a wavy manner along the central axis direction of the sample pipe, and when one end of the pipe body near the opening extends into the first mounting ring groove, the first guide surface and the second guide surface are in concave-convex contact.

In one embodiment, the tube comprises:

the pipe body is provided with the accommodating cavity, and one end of the pipe body is provided with an opening communicated with the accommodating cavity; and

the cover body is provided with a second mounting groove, a first buckling part is arranged at a notch of the second mounting groove, a second buckling part is arranged on the outer side surface of the pipe body, and the first buckling part is in clamping fit with the second buckling part so as to connect the cover body to the pipe body;

wherein, the lid deviates from one side of the notch of second mounting groove is equipped with the intercommunication mouth, the intercommunication mouth intercommunication the opening

In an embodiment, the bottom wall of the second mounting groove is convexly provided with an inner ring rib and an outer ring rib which are arranged along the central axis of the cover body in an extending manner, a second mounting ring groove is formed between the inner ring rib and the outer ring rib, and the pipe body is close to one end of the opening and is in interference fit with the second mounting ring groove.

In one embodiment, the sampling swab comprises:

a rod body; and

the sampling brush head is connected with one end of the rod body, the sampling brush head is provided with a sampling surface and a sampling groove, the sampling surface is used for collecting samples, and the sampling groove extends along the direction close to the rod body;

wherein, breakpoint portion locates sampling brush head with between the body of rod, just the diameter of breakpoint portion is less than the body of rod with the first diameter of sampling brush head, the first location portion is equipped with to the first one end that the first brush head of sampling is close to breakpoint portion.

In one embodiment, the sampling slot extends in a spiral shape.

According to the technical scheme, in the process that the sampling swab extends into the accommodating cavity from the communication port, auxiliary positioning is carried out through the first positioning part of the sampling swab and the second positioning part of the sampling tube, when the first positioning part and the second positioning part are in limit fit, the breakpoint part is just clamped at the edge of the communication port, and the sampling swab can be cut off by pressing one end, located outside the accommodating cavity, of the sampling swab, so that a sample enters the accommodating cavity. So, through the cooperation of first location portion and second location portion, can realize quick location breakpoint portion, make sampling swab be cut off from breakpoint portion fast to reduce positioning time, improve sampling efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a sampling apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a sampling device according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is a schematic structural diagram of a sample tube according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a cap according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of an embodiment of a cover according to the present invention;

FIG. 7 is a schematic view of a sampling swab according to an embodiment of the present invention;

fig. 8 is an enlarged schematic view at B in fig. 7.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Sample tube	315	First buckle part
10	Pipe cap	317	Inner ring rib
				10a	First mounting groove	317a	Guide section
10b	First mounting ring groove	319	Outer ring rib
				11	Boss	33	Pipe body
111	Convex ring	33a	Containing cavity
				13	First guide surface	331	Second fastening part
15	Anti-skid rib	200	Sampling swab
				30	Pipe body	210	Rod body
31	Cover body	230	Sample brush head
				31a	Second mounting groove	230a	Sampling surface
31b	Second mounting ring groove	230b	Sampling groove
				31c	Communication port		231	Snap ring
311	Cutter head	250	Breakpoint portion
				313	Buckle slot	1000	Sampling device
312	Second guide surface

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In order to achieve the purposes of quickly positioning the breakpoint and improving the sampling efficiency, the invention provides a sampling device 1000.

Referring to fig. 1-8, in some embodiments of the present application, a sampling apparatus 1000 includes a sampling swab 200 and a sample tube 100, the sampling swab 200 being provided with a breakpoint portion 250 and a first positioning portion proximate the breakpoint portion 250, the first positioning portion being disposed along a circumference of the sampling swab 200; the sample tube 100 is provided with an accommodating chamber 33a and a communication port 31c, the communication port 31c communicates with the accommodating chamber 33a, and a second positioning portion is provided on the inner surface of the sample tube 100 near the communication port 31c in the circumferential direction; when the sampling swab 200 extends into the accommodating cavity 33a from the communication port 31c, the first positioning portion and the second positioning portion are in limit fit, so that the breaking point portion 250 is clamped at the edge of the communication port 31c.

The sample tube 100 is configured with a sampling swab 200. It will be appreciated that the sampling swab 200 is used to collect a sample, and the collected sample is collected by the sample tube 100 and received by the receiving cavity 33 a. The sampling swab 200 is generally an elongated, rod-like entity having one end for grasping and the other end for collecting a sample. The breaking point portion 250 is a portion of the sampling swab 200 having a relatively small diameter, which is relatively weak in connection strength with other portions of the sampling swab 200, and is easily broken, thereby facilitating the insertion of the collected sample into the receiving cavity 33 a.

In an embodiment of the present application, one end of the sampling swab 200 for collecting a sample extends into the accommodating cavity 33a from the communication port 31c, when the first positioning portion and the second positioning portion are in limit fit, one end of the sampling swab 200 extending into the accommodating cavity 33a abuts against an inner wall surface of the accommodating cavity 33a, and the breakpoint 250 is located at an edge of the communication port 31c. The edge of the swab is usually sharp, and the other end of the swab 200 exposed from the cavity 33a can be easily broken off from the breaking point 250 by a lever principle, so that the end with the sample falls into the cavity 33 a.

Alternatively, the first positioning portions may be raised structures distributed at intervals or continuously along the circumferential direction of the sampling swab 200, and the second positioning portions may be positioning holes or positioning grooves distributed on the inner wall surface of the communication opening 31c, so that the sampling swab 200 can be positioned at multiple angles or at all angles through cooperation of the positioning holes and the positioning grooves.

Of course, the first positioning portion may also be a recessed positioning hole or a positioning groove, and the second positioning portion is provided with a raised positioning structure. It will be appreciated that to ensure strength, the diameter at the first detent portion needs to be greater than the diameter of the breakpoint portion 250 to allow the sampling swab 200 to break at the breakpoint portion 250.

In this application, stretch into the in-process that holds chamber 33a from intercommunication mouth 31c at sampling swab 200, carry out assistance-localization real-time through the first location portion of sampling swab 200 and the second location portion of sampling pipe, when first location portion and the spacing cooperation of second location portion, breakpoint portion 250 blocks just and locates the edge of intercommunication mouth 31c, and it can realize cutting off to press sampling swab 200 to be located the one end that holds the chamber 33a outside, makes the sample get into to hold in the chamber 33 a. Thus, the breakpoint portion 250 can be positioned quickly by the cooperation of the first positioning portion and the second positioning portion, so that the sampling swab 200 is cut off from the breakpoint portion 250 quickly, thereby reducing the positioning time and improving the sampling efficiency.

In one embodiment, the first positioning portion is a snap ring 231 protruding from the sampling swab 200, and the snap ring 231 extends along the circumferential direction of the sampling swab 200; the second positioning portion is a catching groove 313 provided on the inner surface of the sample tube 100 near the communication port 31c, and the catching groove 313 extends in the circumferential direction of the communication port 31c.

Referring to fig. 3, the retaining ring 231 is an annular protrusion on the sampling swab 200, the catching groove 313 is a recessed catching groove 313 formed on the inner surface of the communication opening 31c, and the catching groove 313 is also annularly arranged, so that no matter how the sampling swab 200 extends into the accommodating cavity 33a from any position of the communication opening 31c, the retaining ring 231 and the catching groove 313 can be positioned, and the sampling swab 200 and the sampling tube can be better matched.

Furthermore, the surfaces of the snap ring 231 and the catching groove 313 are both arc-shaped, so that the snap ring 231 and the catching groove 313 can be closely contacted to realize positioning in the swab cutting process, and play a certain supporting role, and the swab cutting operation is facilitated.

In one embodiment, the edge of the communication port 31c is provided with a cutter 311, and the cutter 311 is disposed along the circumferential direction of the communication port 31c for cutting off the sampling brush head.

In the present embodiment, the communication port 31c is provided in a substantially circular shape, and the cutting tip 311 is provided in a solid edge portion surrounding the communication port 31c. Specifically, the cutting head 311 is a relatively sharp cutting edge, and referring to fig. 2, when a sample is collected by an epidemic prevention worker, one end of the swab extends into the accommodating cavity 33a through the communication port 31c, one end of the swab abuts against the inner wall of the accommodating cavity 33a, the middle part of the swab takes the cutting head 311 at the communication port 31c as a fulcrum, and pressure is applied by a hand to form a lever structure. At this time, the relatively sharp blade 311 can easily cut off the swab, so that the sampling brush head falls into the containing cavity 33a, and the swab breaking speed is higher compared with the pressure applied, and the sampling efficiency is obviously improved under a plurality of batches of large-volume sample collecting activities.

Alternatively, the structure of the cutter head 311 may be an annular structure that can be sleeved at the communication port 31c of the tube body 30 and detachably connected with the tube body 30, or may be integrally formed with the tube body 30, which is not limited herein.

Referring to fig. 3 and 6, in an embodiment, the inner wall surface at the communication port 31c is disposed obliquely and at an angle to the end surface at the communication port 31c to form the cutting head 311.

In this embodiment, the inner wall surface of the communication port 31c is inclined with respect to the central axis of the sample tube 100 such that the inner diameter of the communication port 31c gradually increases along the outlet direction, and the inclined inner wall surface forms an angle with the end surface. In this way, the inclined inner wall surface of the communication port 31c can provide a certain supporting force for the sampling swab 200 extending into the communication port 31c, which is beneficial to form a lever structure. Further, the end surface at the communication port 31c is also obliquely disposed, and specifically, when the pipe body 30 is placed vertically, the height of the end surface gradually decreases in a direction away from the communication port 31c. In this manner, when the sampling swab 200 is depressed, the cutting head 311 can smoothly cut into the prepared break point of the sampling swab 200 until the sampling swab 200 is severed at the break point. In this embodiment, as the other end of the swab is pressed down, the end surface of the communication opening 31c no longer obstructs the movement of the swab, and the cutting head 311 has a greater penetration distance than the right-angled cutting head 311, thereby achieving a better cutting effect.

Referring to fig. 1, 4 and 5, in an embodiment, the sample tube 100 includes a tube body 30 and a tube cap 10, the tube body 30 is provided with a receiving cavity 33a, one end of the tube body 30 is provided with a communication port 31c, the tube cap 10 is provided with a first mounting groove 10a, a bottom wall of the first mounting groove 10a is provided with a boss 11, a first mounting ring groove 10b is formed between the boss 11 and a side wall of the mounting groove, and when one end of the tube body 30 adjacent to the communication port 31c extends into the first mounting ring groove 10b, the boss 11 is in interference fit with the communication port 31c.

Wherein, the sample tube 100 is used for temporarily storing the sample. After the completion of one collection, the cap 10 is separated from the tube 30, the sampling swab 200 is inserted into the receiving cavity 33a from the communication port 31c, and after the swab is broken, the cap 10 is replaced to close the communication port 31c.

In this embodiment, the cap 10 is a substantially circular cover body in which the first mounting groove 10a is formed, the boss 11 is substantially cylindrical, a side surface thereof is disposed opposite to an inner wall of the first mounting groove 10a, and a gap therebetween is the first mounting ring groove 10b. One end of the pipe body 30 adjacent to the communication port 31c enters the first mounting groove 10a along the central axis direction thereof, and the pipe body 30 at the communication port 31c extends into the first mounting ring groove 10b. It can be understood that the cross-sectional dimension of the boss 11 is slightly larger than the dimension of the communication port 31c, so that when the one end of the tube body 30 is located in the first mounting ring groove 10b, the outer wall surface of the boss 11 abuts against the inner wall surface at the communication port 31c, so that the boss 11 and the communication port 31c are in interference fit, and the connection is convenient while the sealing performance at the communication port 31c is ensured.

Further, referring to fig. 5 and 6, in an embodiment, an end of the boss 11 away from the bottom wall of the first mounting groove 10a is provided with a protruding ring 111 protruding toward the inside of the first mounting ring groove 10b, and when an end of the pipe body 30 adjacent to the communication port 31c extends into the first mounting ring groove 10b, the protruding ring 111 is clamped in the second positioning portion.

In this embodiment, the second positioning portion is an annular catching groove 313 provided on the inner wall surface of the communication port 31c, and the protruding ring 111 and the outer side surface of the boss 11 are smoothly transited, and accordingly, the cross section of the catching groove 313 is substantially arc-shaped. After the boss 11 extends into the opening, the convex ring 111 can be clamped into the buckling groove 313 by applying force slightly, so that the pipe cap 10 and the pipe body 30 are combined more tightly, the sealing performance of the communication opening 31c is improved, the interaction between the pipe cap 10 and the pipe body 30 is closer, and the pipe cap 10 is prevented from being loosened.

It will be appreciated that the second positioning portion can serve as a stop for the cap 10 when the cap 10 is closed, and can also serve as a positioning portion when the cap 10 is removed and the sampling swab 200 is broken.

In another embodiment, a fastening structure may be further disposed at the communication opening 31c to cooperate with the protruding ring 111 to limit the pipe cap 10, so as to prevent the pipe cap 10 from being loosened.

Referring to fig. 4 to 5, in an embodiment, the inner side wall of the first mounting groove 10a is further provided with a first guide surface 13, the outer surface of the tube body 30 near the communication port 31c is convexly provided with a second guide surface 312, the first guide surface 13 and the second guide surface 312 are both arranged in a wave shape along the central axis direction of the sample tube 100, and when one end of the tube body 30 near the opening is extended into the first mounting ring groove 10b, the first guide surface 13 and the second guide surface 312 are in concave-convex contact.

In this embodiment, the cap 10 and the body 30 are further provided with a first guide surface 13 and a second guide surface 312, respectively. The first guide surface 13 may be a curved surface formed by a side wall of the first mounting groove 10a being recessed in a thickness direction thereof and facing the outside of the first mounting groove 10 a. Specifically, the first guide surface 13 extends in the axial direction of the cap 10 and undulates in an extending path to form a plurality of projections and a plurality of depressions. The second guide surface 312 is formed by projecting from the outer side surface of the pipe body 30, and the second guide surface 312 extends in the axial direction of the pipe body 30 opposite to the first guide surface 13, and is formed with a depression corresponding to the projection of the first guide surface 13 and a projection corresponding to the depression of the first guide surface 13.

Wherein the projections and the depressions are in smooth transition.

It will be appreciated that the first guide surface 13 and the second guide surface 312 can serve as guides for the protrusion and the depression of the two parts to further improve the sealing during the process of covering the cap 10 on the body 30. When the pipe cap 10 is required to be opened, the pipe cap 10 is slightly rotated, the height difference between the first guide surface 13 and the second guide surface 312 in the wave-shaped design enables the protrusions of the first guide surface and the second guide surface to be opposite, the pipe cap 10 and the pipe body 30 are separated, the function of easily opening the cover is achieved, the pipe cap 10 and the pipe body 30 are connected and separated conveniently and quickly, and the sampling efficiency is further improved.

In an embodiment, the tube 30 includes a tube body 33 and a cover 31, the tube body 33 has an accommodating cavity 33a, one end of the tube body 33 has an opening communicated with the accommodating cavity 33a, the cover 31 has a second mounting groove 31a, a notch of the second mounting groove 31a is provided with a first fastening portion 315, an outer side surface of the tube body 33 is provided with a second fastening portion 331, and the first fastening portion 315 is fastened and engaged with the second fastening portion 331 to connect the cover 31 to the tube body 33; wherein, the side of the cover 31 departing from the notch of the second mounting groove 31a is provided with a communication port 31c, and the communication port 31c is communicated with the opening.

Referring to fig. 4 and 6, in the present embodiment, the cover 31 has a substantially cylindrical cover structure, and the second mounting groove 31a is formed in the cover structure. The tube body 33 is also substantially cylindrical, and generally, the tube body 33 has an opening, one end of the opening adjacent to the opening enters the second mounting groove 31a along the central axis direction thereof, the opening faces the communication opening 31c, and the first locking portion 315 is locked on the lower surface of the second locking portion to connect the tube body 33 and the cover 31.

Further, the cover 31 and the tube body 33 are connected by a snap fit. To ensure the connection tightness, the first locking portion 315 is disposed at the notch of the second mounting groove 31a, and the first locking portion 315 is disposed along the circumferential extension of the second mounting groove 31a, and correspondingly, the second locking portion 331 is disposed along the circumferential extension of the pipe body 33. In this case, the lid body 31 and the tube main body 33 can be separately processed and assembled. The advantage of this is that, can adopt the mode processing lid 31 that the structure is comparatively complicated of integrative injection moulding, the pipe body 33 that the structure is comparatively simple can also adopt other modes to process, and the two can not adopt same material, for example, lid 31 is the plastics material, and pipe body 33 can be the plastics material, also can adopt glass material to process. Thus, the reliability and the production efficiency of the sample tube 100 are ensured.

Optionally, in an embodiment, one end of the cover 31 close to the notch of the first installation groove 10a is bent into the first installation groove 10a to form a first buckling portion 315, the first buckling portion 315 extends along the circumferential direction of the cover 31, and the second buckling portion 331 is convexly disposed on the outer surface of the pipe body 33 and extends along the circumferential direction of the pipe body 33, so as to further improve the tightness and the sealing performance of the connection between the cover 31 and the pipe body 33.

Referring to fig. 4, in an embodiment, an inner annular rib 317 and an outer annular rib 319 extending along a central axis of the cover 31 are protruded from a bottom wall of the second mounting groove 31a, a second mounting ring groove 31b is formed between the inner annular rib 317 and the outer annular rib 319, and one end of the pipe body 33 adjacent to the opening is in interference fit with the second mounting ring groove 31b.

In this embodiment, two circles of ribs are formed in the second mounting groove 31a at intervals, the two ribs are respectively an inner ring rib 317 with a smaller radius and an outer ring rib 319 with a larger radius, and a gap between the two ribs is the second mounting groove 31b.

It can be understood that the distance between the two side walls of the second mounting ring groove 31b, that is, the distance between the surfaces of the opposite sides of the inner ring rib 317 and the outer ring rib 319 is slightly smaller than the thickness of one end of the pipe body 33, so that when one end of the pipe body 33 is located in the second mounting ring groove 31b, the surfaces of the opposite sides of the inner ring rib 317 and the outer ring rib 319 are both abutted against the inner wall surface and the outer wall surface of the opening, and the pipe body 33 is in interference fit with the second mounting ring groove 31b, thereby ensuring the sealing performance of the opening. Thus, the cover 31 forms a clamping cover at the end of the tube body 33, thereby effectively avoiding the influence of the outside on the sample environment, and blocking the overflow of the sample reagent in the tube body 33, thereby realizing the sealing performance of the sample tube 100. In addition, the cover 31 and the tube main body 33 are connected by the snap-fit of the first snap-fit portion 315 and the second snap-fit portion 331, so that the sample tube 100 is more easily attached and detached while the sealing performance is further ensured. Because the inner ring rib 317 and the outer ring rib 319 are integrated on the cover body 31, no gasket is required to be arranged outside for sealing, the structure is reliable, and the assembly is convenient. The close fit of the cover 31 and the tube body 33 also makes the structure of the sample tube 100 more stable and reliable, which is beneficial to the long-term storage and convenient transportation of the sample tube 100.

In one embodiment, the cover 31 is used to connect and seal with the tube body 33, and the cap 10 is used to open and close the cover quickly, so that the sample brush head 230 can be stored in the containing cavity 33a of the tube body 33 after a worker collects a sample.

Alternatively, the pipe cap 10 and the cover 31 may be connected by a screw thread or an interference fit.

Optionally, the outer surface of the cap 10 is provided with anti-slip ribs 15 to prevent the cap 10 from being opened and closed.

Optionally, the diameter of the inner annular rib 317 is slightly smaller than the diameter of the opening of the accommodating cavity 33a of the tube body 33, and the aperture of the communication port 31c is smaller than the diameter of the inner annular rib 317, so that the exposed area in the sampling process is reduced, the interference of the outside on the environment in the tube body 33 is reduced, and the effectiveness of the sample is ensured.

Referring to fig. 7 and 8, in one embodiment, the sampling swab 200 includes a shaft 210 and a sampling brush head attached to one end of the shaft 210, the sampling brush head having a sampling surface 230a and a sampling groove 230b, the sampling surface 230a being used for collecting a sample, and the sampling groove 230b being disposed to extend in a direction adjacent to the shaft 210.

Wherein, breakpoint portion 250 locates between sampling brush head and the body of rod 210, and breakpoint portion 250's diameter is less than the diameter of body of rod 210 and sampling brush head, the rupture of being convenient for, and the one end that sampling brush head is close to breakpoint portion 250 is equipped with first location portion, and first location portion is adjacent to setting with breakpoint portion 250, conveniently fixes a position breakpoint portion 250.

In some testing works, pharyngeal swabs are often used for sample collection. Specifically, the sampling swab 200 has a longer rod 210, and a sampling brush head is disposed at one end of the rod 210, so that the user can hold one end of the sampling swab 200 and insert the other end into the mouth of the user, and the sampling brush head is pressed against the throat of the user to collect the pharyngeal biosample for analysis and detection.

The surface of the brush head of the conventional sampling swab 200 is relatively smooth, and the biological sample is mainly extracted by dipping, which may cause insufficient sample collection.

In one embodiment, the end surface and at least a portion of the side periphery of the sampling brush head is adapted to contact a biological cortex, and thus defines the surface as sampling surface 230a. In this embodiment, the sampling groove 230b extending along the length direction of the sampling brush head is formed on the side peripheral surface of the sampling surface 230a, that is, the sampling groove 230b is formed by partially recessing the sampling surface 230a. When the sample is collected, the sampling brush head extends into the oral cavity of a person to be measured, the sampling surface 230a is enabled to abut against the pharyngeal portion of the person to be measured, the sampling surface 230a and the biological epidermis move relatively when the sampling brush head is scratched, and the edge of the sampling groove 230b can scrape the epidermis to enable more biological samples to be collected, so that sufficient samples are collected.

Optionally, the shape and the extending manner of the sampling slot 230b are not limited, and may be extended along a straight line or in an arc shape, and the edge of the sampling slot 230b is slightly rounded while keeping a certain edge angle, so as to avoid scratching the skin.

Further, this application covers in sampling face 230a and has the adsorbed layer for adsorb the sample of gathering, to furthest retains the sample, avoids the sample to run off. In one embodiment, the absorption layer is a fine velvet layer with fine holes, and absorbs the sample on the sampling surface 230a by capillary effect.

According to the technical scheme, the sampling groove 230b is arranged on the sampling surface 230a in an extending mode, in the one-time sampling process, more samples can be collected by the sampling swab 200, and biological samples are adsorbed by the adsorption layer, so that the sufficient sample collection amount and the sufficient sample retention amount are guaranteed, the detection error is reduced, the false detection is avoided, and the accuracy of the detection result is guaranteed.

In one embodiment, the sampling slots 230b extend in a spiral shape. Therefore, the sampling groove 230b is longer in extension distance, so that samples can be stored more easily, the sample collection amount can be improved, the effective collection angle of the sampling brush head can be enlarged, and the sampling brush head can collect samples at any angle.

Of course, in other embodiments, the sampling slot 230b may extend along the length of the sampling brush head.

The sampling brush head may be formed by integral molding, or the sampling groove 230b may be formed by reworking the molded base body, which is not limited herein.

Further, the sampling grooves 230b are distributed in a double spiral shape. On one hand, the double spiral structure makes the sampling slots 230b more dense and extend for a longer distance; on the other hand, the double-spiral structure is beneficial to improving the structural stability of the sampling brush head, so that the sampling brush head has good balance.

Preferably, the double-spiral structure in the embodiment is symmetrically arranged, so that the balance of the sampling brush head is further improved. The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A sampling device, characterized in that the sampling device comprises:

the sample tube is provided with an accommodating cavity and a communication port, the communication port is communicated with the accommodating cavity, and a second positioning part is arranged on the inner surface, close to the communication port, of the sample tube in the circumferential direction;

when the sampling swab extends into the accommodating cavity from the communicating opening, the first positioning part is in limit fit with the second positioning part, so that the breakpoint part is clamped on the edge of the communicating opening.

2. The sampling device of claim 1, wherein the first detent is a snap ring protruding from the sampling swab, the snap ring extending circumferentially around the sampling swab;

the second positioning portion is a fastening groove formed in the inner surface, close to the communication opening, of the sample tube, and the fastening groove extends along the circumferential direction of the communication opening.

3. The sampling device of claim 2, wherein a cutting head is provided at an edge of the communication port, the cutting head being provided along a circumferential direction of the communication port for cutting off the sampling brush head.

4. The sampling device of claim 1, wherein the sample tube comprises:

the pipe body is provided with an accommodating cavity, and one end of the pipe body is provided with the communication port; and

5. The sampling device according to claim 4, wherein an end of the boss away from the bottom wall of the first mounting groove is provided with a protruding ring protruding toward the inside of the first mounting ring groove, and when an end of the tube body adjacent to the communication port extends into the first mounting ring groove, the protruding ring is clamped in the second positioning portion.

6. The sampling device according to claim 4, wherein the inner side wall of the first mounting groove is further provided with a first guide surface, the outer surface of the tube body near the communication port is provided with a second guide surface, the first guide surface and the second guide surface are both arranged in a wave shape along the central axis direction of the sample tube, and when one end of the tube body near the communication port is inserted into the first mounting ring groove, the first guide surface and the second guide surface are in concave-convex contact.

7. The sampling device of claim 4, wherein the tube body comprises:

wherein, the lid deviates from one side of the notch of second mounting groove is equipped with the intercommunication mouth, the intercommunication mouth intercommunication the opening.

8. The sampling device according to claim 7, wherein an inner ring rib and an outer ring rib extending along a central axis of the cover body are protruded from a bottom wall of the second mounting groove, a second mounting groove is formed between the inner ring rib and the outer ring rib, and one end of the tube body adjacent to the opening is in interference fit with the second mounting groove.

9. The sampling device of any of claims 1 to 8, wherein the sampling swab comprises:

a rod body; and

10. The sampling device of claim 9, wherein the sampling slot extends in a spiral.