Novel quantitative vagina sampling swab

Abstract

The utility model provides a novel quantitative vagina sampling swab, which relates to the technical field of medical instruments and comprises a hard rod and a cotton swab arranged at one end of the hard rod. A hard rod and a cotton swab are inserted into the first sheath; a blocking structure is arranged at one end, far away from the cotton swab, of the first sheath; the second sheath is connected with one end, far away from the cotton swab, of the hard rod; the second sheath is inserted into the first sheath and drives the hard rod and the cotton swab to slide along the axial direction of the first sheath; one end, far away from the cotton swab, of the second sheath is provided with a bulge, and the bulge of the second sheath is blocked by the blocking structure of the first sheath, so that the movement range of the hard rod and the cotton swab driven by the second sheath is limited; the problems that when an existing cotton swab head enters the vagina, the swab collecting process is different (whether a speculum is adopted or not and whether the whole cotton swab head makes contact with all the walls of the vagina or not), and the sampling amount is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a novel quantitative vaginal sampling swab. Background Technology

[0002] The human body surface and cavities that connect to the outside world are inhabited by microorganisms that do not harm the human body, collectively known as the normal microbiota or normal flora. Through long-term evolution and adaptation, different species of normal flora, normal flora and the host, and normal flora, host and environment are always in a dynamic balance, forming an interdependent and mutually restrictive system. The female lower genital tract is an open cavity and an important micro-ecological area in the human body. Under normal circumstances, it is a micro-ecosystem mainly composed of dominant bacteria such as lactobacilli. pH value is an important indicator of vaginal inflammation and can be used to preliminarily determine whether a patient has vaginal inflammation.

[0003] Currently available vaginal secretion samplers are no different from those used for other sites (oral cavity, nasal cavity, etc.). The amount of vaginal secretion collected each time is related to the degree of contact between the swab and the collection site and the number of rotations. It is impossible to collect equal amounts of secretions from different people. As a result, it is impossible to compare the absolute amount of microbial samples between different people. Instead, it is only possible to compare the relative amount of a certain microorganism (its proportion in the total sample, i.e., relative abundance). The process of the swab head entering the vagina and the process of collecting the swab (whether a speculum is used, whether the entire swab head is in contact with all vaginal walls) all affect the amount of secretions collected by the swab. Utility Model Content

[0004] This utility model provides a novel quantitative vaginal sampling swab, specifically comprising:

[0005] A rigid rod has a cotton swab at one end; a first sheath has the rigid rod and cotton swab inserted inside; the end of the first sheath away from the cotton swab has a blocking structure; a second sheath is connected to the end of the rigid rod away from the cotton swab; the second sheath is inserted into the first sheath and drives the rigid rod and cotton swab to slide along the axial direction of the first sheath; the end of the second sheath away from the cotton swab has a protrusion, and the protrusion of the second sheath is blocked by the blocking structure of the first sheath, thus restricting the range of movement of the rigid rod and cotton swab driven by the second sheath.

[0006] Preferably, the surface of the first sheath is provided with a guide groove, and the end of the second sheath pointing towards the cotton swab is provided with a guide rod; the guide rod is inserted into the guide groove; the blocking structure is a limiting pin, and the limiting pin is slidably connected to the guide groove.

[0007] Preferably, a guide member is provided on the outside of the guide groove, and a sliding groove is provided inside the guide member; the limiting pin is inserted into the sliding groove and is slidably connected with the guide member.

[0008] Preferably, the guide groove has graduations on its outer side.

[0009] Preferably, the second sheath is rotatably connected to the rigid rod, and the end of the rigid rod away from the cotton swab is provided with a handle.

[0010] Preferably, the connection between the rigid rod and the cotton swab is provided with a breakable point.

[0011] Preferably, the rigid rod is a hollow tube, and one end of the rigid rod near the cotton swab is connected to one end of the elastic rod; the other end of the elastic rod is provided with a cotton swab; a traction member is fixedly connected inside the elastic rod, and the traction member passes through the rigid rod and exits from the end of the rigid rod away from the cotton swab.

[0012] Preferably, the elastic rod has a protrusion inside and a groove on the outside of the rigid rod. The elastic rod is fitted onto the outside of the rigid rod, and the protrusion engages with the groove.

[0013] Beneficial effects

[0014] In this invention, the second sheath has a defined range of motion, the size of which is determined by the distance between the protrusion of the second sheath and the blocking structure of the first sheath. When the first sheath is inserted into the patient's vagina, the second sheath is pushed forward until the protrusion of the second sheath is blocked by the blocking structure of the first sheath. At this point, the distance the swab protrudes from the first sheath is defined. Then, the swab is rotated a specified number of times and returned to the first sheath, thus completing the sampling. Since the distance the swab protrudes from the first sheath is defined, the number of rotations is defined, and the instrument is inside the first sheath both when it enters and leaves the patient's vagina, it does not come into contact with the vaginal wall. This ensures that the sample volume is within the standard range. By sampling in this way, when sampling different patients, it is ensured that other variables, such as contact area and contact time, are approximately the same except for the sampling personnel. This allows for the sampling of multiple patients with the same amount of sample, and the obtained sample can be used for the absolute quantitative study of human vaginal microorganisms. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 A three-dimensional structural schematic diagram of a sampling swab according to an embodiment of the present invention is shown.

[0019] Figure 2 A three-dimensional cross-sectional schematic diagram of a sampling swab according to an embodiment of the present invention is shown.

[0020] Figure 3 A sampling swab according to an embodiment of the present invention is shown. Figure 2 A magnified view of a portion of point A shown.

[0021] Figure 4 A sampling swab according to an embodiment of the present invention is shown. Figure 2 A magnified view of a portion of point B shown.

[0022] Figure 5 An assembly diagram of the limiting pin of a sampling swab according to an embodiment of the present invention is shown.

[0023] Figure 6 An assembly diagram of the guide rod and guide groove of a sampling swab according to an embodiment of the present invention is shown.

[0024] Figure 7 A three-dimensional cross-sectional schematic diagram of a sampling swab according to an embodiment of the present invention is shown in another direction.

[0025] Figure 8 A sampling swab according to an embodiment of the present invention is shown. Figure 5 A magnified view of a portion of point C shown.

[0026] List of main reference numerals

[0027] 101. Rigid rod; 102. Flexible rod; 103. Cotton swab; 104. Traction component; 105. Handle;

[0028] 201. First sheath; 202. Guide groove; 203. Guide component; 204. Limiting pin;

[0029] 301. Second sheath; 302. Guide rod. Detailed Implementation

[0030] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention.

[0031] Example: Please refer to Figures 1 to 6 :

[0032] This utility model proposes a novel quantitative vaginal sampling swab, comprising:

[0033] A rigid rod 101 has a cotton swab 103 at one end; a first sheath 201 has the rigid rod 101 and the cotton swab 103 inserted inside; the end of the first sheath 201 away from the cotton swab 103 has a blocking structure; a second sheath 301 is connected to the end of the rigid rod 101 away from the cotton swab 103; the second sheath 301 is inserted into the first sheath 201 and drives the rigid rod 101 and the cotton swab 103 to slide along the axial direction of the first sheath 201; the end of the second sheath 301 away from the cotton swab 103 has a protrusion, and the protrusion of the second sheath 301 is blocked by the blocking structure of the first sheath 201, thus limiting the range of motion of the second sheath 301 in moving the rigid rod 101 and the cotton swab 103; in one embodiment, the second sheath 301 has a defined range of motion, the size of which is determined by the distance between the protrusion of the second sheath 301 and the blocking structure of the first sheath 201. With the distance determined, when the first sheath 201 is inserted into the patient's vagina, the second sheath 301 is pushed forward until the protrusion of the second sheath 301 is blocked by the blocking structure of the first sheath 201. At this point, the distance the cotton swab 103 extends out of the first sheath 201 is fixed. Then, the swab is rotated according to the specified number of rotations, and the cotton swab 103 is retracted into the first sheath 201, thus completing the sampling. Since the distance the cotton swab 103 extends out of the first sheath 201 is fixed, the number of rotations is fixed, and the instrument is inside the first sheath 201 when it enters and leaves the patient's vagina, it will not come into contact with the vaginal wall. This ensures that the sample volume is within the standard range. By sampling in this way, when sampling different patients, it is ensured that other variables such as contact area and contact time are approximately the same, except for the sampling personnel. This allows for the sampling of multiple patients with the same amount of sample, and the obtained sample can be used for the absolute quantitative study of human vaginal microorganisms.

[0034] Among them, such as Figure 1 and Figure 2 As shown, the surface of the first sheath 201 is provided with a guide groove 202, and the end of the second sheath 301 pointing towards the cotton swab 103 is provided with a guide rod 302; the guide rod 302 is inserted into the guide groove 202; the blocking structure is a limiting pin 204, and the limiting pin 204 is slidably connected to the guide groove 202; there is damping between the guide groove 202 and the limiting pin 204, and the limiting pin 204 can be fixed at any position in the guide groove 202. At this time, when the second sheath 301 is pushed and slides along the first sheath 201, the guide rod 302 is blocked when it slides to the limiting pin 204. During this process, the distance before the guide rod 302 contacts the limiting pin 204 is the distance the cotton swab 103 protrudes.

[0035] Among them, such as Figure 4 , Figure 5 and Figure 7As shown, a guide member 203 is provided on the outside of the guide groove 202, and a sliding groove is provided inside the guide member 203; the limiting pin 204 is inserted into the sliding groove and is slidably connected with the guide member 203.

[0036] Among them, such as Figure 4 As shown, the guide groove 202 has a scale on the outside; this makes it easy to observe or determine the distance the cotton swab 103 extends.

[0037] Among them, such as Figure 5 As shown, the second sheath 301 is rotatably connected to the rigid rod 101, and the end of the rigid rod 101 away from the cotton swab 103 is provided with a handle; in one embodiment, the rigid rod 101 is restricted in the position of its rotation axis by the second sheath 301 to ensure that the rotation axis of the rigid rod 101 is consistent with the central axis of the first sheath 201.

[0038] In one embodiment, a breakable point is provided at the connection between the rigid rod 101 and the cotton swab 103; the breakable point allows the cotton swab 103 to be easily separated from the rigid rod 101, facilitating the preservation of the sample.

[0039] Among them, such as Figure 2 , Figure 3 and Figure 5 As shown, the rigid rod 101 is a hollow tube, and one end of the rigid rod 101 near the cotton swab 103 is connected to one end of the elastic rod 102; the other end of the elastic rod 102 is provided with the cotton swab 103; a traction member 104 is fixedly connected inside the elastic rod 102, and the traction member 104 passes through the rigid rod 101 and exits from the end of the rigid rod 101 away from the cotton swab 103; when the traction member 104 is pulled at the end away from the cotton swab 103, the elastic rod 102 can be pulled to bend, and at the same time the cotton swab 103 bends, changing the sampling range and increasing the applicability of this device.

[0040] Among them, such as Figure 8 As shown, the elastic rod 102 has a protrusion inside, and the rigid rod 101 has a groove on the outside. The elastic rod 102 is fitted onto the outside of the rigid rod 101, and the protrusion is engaged with the inside of the groove; this enables quick release between the elastic rod 102 and the rigid rod 101, facilitating the separation of the cotton swab 103 from the rigid rod 101.

[0041] The specific usage and function of this embodiment: In this utility model, the second sheath 301 has a defined range of motion, the size of which is determined by the distance between the protrusion of the second sheath 301 and the blocking structure of the first sheath 201. When the first sheath 201 is inserted into the patient's vagina, the second sheath 301 is pushed forward until the protrusion of the second sheath 301 is blocked by the blocking structure of the first sheath 201. At this time, the distance that the cotton swab 103 protrudes from the first sheath 201 is defined. Then, the swab is rotated according to the specified number of turns, and the cotton swab 103 is retracted. Sampling is completed within the first sheath 201. Since the distance the cotton swab 103 extends out of the first sheath 201 is fixed, the number of rotations is also fixed, and the instrument enters and leaves the patient's vagina entirely within the first sheath 201, without contacting the vaginal wall, this ensures that the sample volume is within the standard range. By sampling in this way, when sampling different patients, it is ensured that other variables, such as contact area and contact time, are roughly the same except for the sampling personnel. This allows for the same amount of sampling from multiple patients, and the obtained samples can be used for absolute quantitative research on human vaginal microorganisms.

[0042] The above description is merely an exemplary embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. The scope of protection of the present utility model is determined by the appended claims.

Claims

1. A novel quantitative vaginal sampling swab, characterized in that, include: A rigid rod (101) is provided with a cotton swab (103) at one end; The first sheath (201) has a rigid rod (101) and a cotton swab (103) inserted inside; the end of the first sheath (201) away from the cotton swab (103) is provided with a blocking structure; The second sheath (301) is connected to the end of the rigid rod (101) away from the cotton swab (103); the second sheath (301) is inserted into the first sheath (201) and drives the rigid rod (101) and the cotton swab (103) to slide along the axial direction of the first sheath (201); the end of the second sheath (301) away from the cotton swab (103) has a protrusion, and the protrusion of the second sheath (301) is blocked by the blocking structure of the first sheath (201), so that the range of movement of the second sheath (301) driving the rigid rod (101) and the cotton swab (103) is limited.

2. The novel quantitative vaginal sampling swab according to claim 1, characterized in that, The surface of the first sheath (201) is provided with a guide groove (202), and the end of the second sheath (301) pointing towards the cotton swab (103) is provided with a guide rod (302); the guide rod (302) is inserted into the guide groove (202); the blocking structure is a limiting pin (204), and the limiting pin (204) is slidably connected to the guide groove (202).

3. A novel quantitative vaginal sampling swab according to claim 2, characterized in that, The guide groove (202) is provided with a guide (203) on the outside, and a sliding groove is provided inside the guide (203); the limiting pin (204) is inserted into the sliding groove and is slidably connected with the guide (203).

4. A novel quantitative vaginal sampling swab according to any one of claims 2-3, characterized in that, The guide groove (202) has a scale on its outer side.

5. A novel quantitative vaginal sampling swab according to claim 1, characterized in that, The second sheath (301) is rotatably connected to the rigid rod (101), and the end of the rigid rod (101) away from the cotton swab (103) is provided with a handle.

6. A novel quantitative vaginal sampling swab according to claim 1, characterized in that, The connection between the rigid rod (101) and the cotton swab (103) is provided with a breakable point.

7. A novel quantitative vaginal sampling swab according to claim 1, characterized in that, The rigid rod (101) is a hollow tube, and one end of the rigid rod (101) near the cotton swab (103) is connected to one end of the elastic rod (102); the other end of the elastic rod (102) is provided with the cotton swab (103); a traction member (104) is fixedly connected inside the elastic rod (102), and the traction member (104) passes through the rigid rod (101) and exits from the end of the rigid rod (101) away from the cotton swab (103).

8. A novel quantitative vaginal sampling swab according to claim 7, characterized in that, The elastic rod (102) has a protrusion inside, and the rigid rod (101) has a groove on the outside. The elastic rod (102) is fitted onto the outside of the rigid rod (101), and the protrusion is engaged with the inside of the groove.

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