A device for taking a sample of vaginal discharge for testing

Abstract

This invention provides a vaginal secretion sample collection device, comprising: a handheld unit with an observation channel; multiple parallel spreading rods, one end of which is installed within the observation channel of the handheld unit; wherein the centerline of the spreading rods is parallel to the centerline of the observation channel; the handheld unit drives the multiple spreading rods away from or towards the centerline of the observation channel. This invention achieves vaginal dilation by driving the multiple spreading rods away from or towards the centerline of the observation channel through the handheld unit. Dilation in multiple directions reduces the degree of dilation while obtaining a larger field of view, reducing patient pain. The observation channel is unobstructed, facilitating observation.

Description

Technical Field

[0001] This invention relates to the field of gynecological testing equipment technology, specifically to a device for collecting vaginal secretion test samples. Background Technology

[0002] Gynecological tests cover a wide range of procedures, among which vaginal sample collection is a routine and frequent operation. Current techniques involve using a speculum to open the vagina, followed by scraping cells from the vaginal wall with a cotton swab or curette for subsequent testing.

[0003] Current vaginal speculums are typically duckbill clip type, with the front end opening and the rear end closing. They stretch the vagina in two opposite directions, but the extent to which the vaginal walls are stretched by the speculum is limited. Furthermore, as the speculum opens, the vaginal walls press tightly against it, limiting the doctor's field of vision to a narrow frame. To obtain a wider field of view to observe lesions, the speculum needs to be opened further. Although the vagina has strong elasticity, most patients undergoing gynecological examinations have underlying conditions, often causing significant pain compared to healthy individuals, hindering the smooth conduct of the examination and negatively impacting subsequent sample collection. Additionally, when observing and collecting samples, the doctor's line of sight passes through the connecting parts of the speculum, further obstructing their view. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a vaginal secretion test sample collection device to reduce patient pain during examination and increase the doctor's field of vision.

[0005] This invention provides a device for collecting vaginal secretion test samples, comprising:

[0006] The handheld part has an observation channel;

[0007] The support rods are arranged in parallel with each other, with one end installed in the observation channel of the handheld part;

[0008] The centerline of the expansion rod is parallel to the centerline of the observation channel; the handheld part drives multiple expansion rods to move away from or towards the centerline of the observation channel.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] In this invention, the hand-held part drives multiple spreading rods to move away from or closer to the center line of the observation channel to complete the spreading action of the vagina. Spreading in multiple directions can reduce the degree of spreading and obtain a larger field of view, which can reduce the patient's pain. There are no obstructions in the observation channel, which is conducive to observation.

[0011] Preferably, the handheld part includes:

[0012] The handheld sleeve has an internal observation channel and multiple through-holes on its side walls.

[0013] A rotating component is installed in each mounting hole;

[0014] An arc-shaped bar is connected to each rotating component, with its end away from the rotating component connected to the end of the support rod;

[0015] The drive component is mounted on the handheld sleeve and connected to the rotating component;

[0016] When the driving component drives the rotating component to rotate on a fixed axis, the end of the arc-shaped strip away from the rotating component approaches or moves away from the center line of the handheld sleeve.

[0017] Preferably, the driving component includes a driving sleeve;

[0018] The drive sleeve is rotated and fitted outside the handheld sleeve; the inner wall of the drive sleeve is provided with an annular drive rack along the circumference.

[0019] The rotating components include a rotating gear and a positioning shaft;

[0020] The positioning shaft is installed in the mounting hole, and the rotating gear is sleeved on the positioning shaft; multiple rotating gears mesh with the outer drive rack; the rotating gears are connected to the end of the arc-shaped strip.

[0021] Preferably, the rotating component further includes multiple locking cones; the locking cones are connected to the inner walls of the corresponding mounting holes; the tips of the locking cones are connected to the positioning shaft; a locking channel is provided on the side wall of the handheld sleeve corresponding to each mounting hole; the locking channel communicates with the mounting hole; the end of the positioning shaft away from the locking cone is inserted into the locking channel; a tapered hole is provided on the side of the rotating gear facing the locking cone; a toothed rack that fits between itself is laid on the outer wall of the locking cone and the inner wall of the tapered hole; a locking tube with a coaxial axis is connected to the end of the rotating gear away from the locking cone, the locking tube is sleeved on the positioning shaft and inserted into the locking channel; when the rotating gear slides along the positioning shaft and disengages from the driving rack, the rack in the tapered hole meshes with the rack on the surface of the locking cone.

[0022] Preferably, the rotating component further includes:

[0023] The control lever has one end that slides into the locking channel;

[0024] The control bearing has its inner ring connected to the end of the locking tube;

[0025] The control spring has one end connected to the outer ring of the control bearing and the other end connected to the end of the control rod.

[0026] The control rod has a control thread, and the locking channel has a first mating thread and a second mating thread on the inner wall of the control rod; the control thread is located between the first mating thread and the second mating thread.

[0027] Preferably, the teeth of both the drive rack and the rotating gear include:

[0028] Triangular prism teeth and triangular pyramid blocks connected to both ends of the triangular prism teeth; the end faces of the triangular pyramid blocks are connected to the end faces of both ends of the triangular prism. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0030] Figure 1 This is a schematic diagram of a vaginal secretion test sample collection device according to an embodiment of the present invention;

[0031] Figure 2 for Figure 1 A schematic diagram of the internal structure of a vaginal secretion sample collection device;

[0032] Figure 3 for Figure 2 A cross-sectional view of an apparatus for collecting vaginal secretion samples;

[0033] Figure 4 for Figure 2 A schematic diagram of the rotating component of a vaginal secretion test sample collection device;

[0034] Figure 5 for Figure 2 A schematic diagram of the structure of a vaginal secretion test sample collection device, showing the cooperation between the control rod and the locking tube;

[0035] Figure 6 for Figure 2 A schematic diagram of the tooth structure of the drive rack of a vaginal secretion test sample collection device.

[0036] Figure label:

[0037] 1. Handheld part; 11. Handheld sleeve; 12. Observation channel; 13. Mounting hole; 14. Locking channel; 141. First mating thread; 142. Second mating thread;

[0038] 2. Spread the pole;

[0039] 3. Rotating component; 31. Rotating gear; 311. Tapered hole; 32. Positioning shaft; 33. Locking cone; 34. Locking tube; 35. Control rod; 351. Control thread; 36. Control bearing; 37. Control spring;

[0040] 4. Curved strip;

[0041] 5. Driving component; 51. Driving sleeve; 52. Driving rack; 521. Triangular prism tooth; 522. Triangular pyramid block. Detailed Implementation

[0042] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0043] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by those skilled in the art to which this invention pertains.

[0044] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0045] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly defined.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] See Figures 1 to 6 A device for collecting vaginal secretion test samples, comprising:

[0049] Handheld part 1, with observation channel 12;

[0050] The support rod 2 has multiple parallel rods, one end of which is installed in the observation channel 12 of the handheld part 1;

[0051] The center line of the expansion rod 2 is parallel to the center line of the observation channel 12; the handheld part 1 drives the multiple expansion rods 2 away from or towards the center line of the observation channel 12.

[0052] The doctor holds the handle 1, and a lubricated rubber sleeve can be fitted over the spreading rod 2, which is then discarded after use. Multiple spreading rods 2 are inserted into the vagina. The arrangement of multiple spreading rods 2 opens the vagina into a polygonal observation space. Compared to traditional duckbill-type vaginal speculum that opens the vagina in two opposite directions, this effectively avoids the extreme stretching of the vaginal wall caused by opening in two directions. Furthermore, the observation channel 12 contains no other structures besides the spreading rods 2. After opening, there are no obstructions between the spreading rods 2, further improving the field of vision. The polygonal observation space is also more conducive to observation than a rectangular observation space.

[0053] Furthermore, the handheld part 1 includes:

[0054] The handheld sleeve 11 has an observation channel 12 inside and multiple mounting holes 13 through the inside and outside of its side wall;

[0055] Rotating component 3, one of which is installed in each mounting hole 13;

[0056] Arc-shaped bar 4, one of which is connected to each rotating component 3, with the end of which away from the rotating component 3 connected to the end of the support rod 2;

[0057] The driving component 5 is mounted on the handheld sleeve 11 and connected to the rotating component 3;

[0058] When the driving component 5 drives the rotating component 3 to rotate on a fixed axis, the end of the arc-shaped strip 4 away from the rotating component 3 approaches or moves away from the center line of the handheld sleeve 11.

[0059] The curvature of the arc-shaped strip 4 is the same as that of the inner wall of the handheld sleeve 11. Therefore, after the arc-shaped strip 4 rotates with the rotating component 3, it can perfectly fit the inner wall of the handheld sleeve 11. This makes the observable area within the observation channel 12 larger when the device is opened. In addition, a light source can be placed on the expansion rod 2 to illuminate it, facilitating observation by the doctor. Furthermore, the connection method between the arc-shaped strip 4 and the rotating component 3, and its movement trajectory, make the device small in size and easy to operate by hand.

[0060] Furthermore, the driving component 5 includes a driving sleeve 51; the driving sleeve 51 is rotatably sleeved on the outside of the handheld sleeve 11; the inner wall of the driving sleeve 51 is circumferentially covered with an annular driving rack 52; the rotating component 3 includes a rotating gear 31 and a positioning shaft 32; the positioning shaft 32 is installed in the mounting hole 13, and the rotating gear 31 is sleeved on the positioning shaft 32; multiple rotating gears 31 mesh with the outer driving rack 52; the rotating gear 31 is connected to the end of the arc-shaped bar 4.

[0061] The rotation of the drive sheath 51 drives the rotating gear 31, which in turn drives the arc-shaped strip 4 to close or open the multiple spreading rods 2. During the procedure, the doctor first inserts the spreading rods 2 into the vagina, then holds the handheld sheath 11 with one hand and rotates the drive sheath 51 with the other, causing the spreading rods 2 to open and thus open the vagina. Then, the doctor holds the junction of the drive sheath 51 and the handheld sheath 11 with the left hand to lock them together, and uses a cotton swab or scraper in the right hand to collect samples. Compared to traditional duckbill clamps, this method of opening the vagina by rotating the drive sheath 51 allows for a smaller feed rate, making it easier to control. If the patient experiences pain, the procedure can be stopped immediately to prevent secondary injury.

[0062] Furthermore, the rotating component 3 also includes multiple locking cones 33; the locking cones 33 are connected to the inner walls of the corresponding mounting holes 13; the tips of the locking cones 33 are connected to the positioning shaft 32; a locking channel 14 is provided on the side wall of the handheld sleeve 11 corresponding to each mounting hole 13; the locking channel 14 communicates with the mounting hole 13; the end of the positioning shaft 32 away from the locking cones 33 is inserted into the locking channel 14; a tapered hole 311 is provided on the side of the rotating gear 31 facing the locking cones 33; a toothed rack that fits with each other is laid on the outer wall of the locking cones 33 and the inner wall of the tapered hole 311; a locking tube 34 with the same axis is connected to the end of the rotating gear 31 away from the locking cones 33, the locking tube 34 is sleeved on the positioning shaft 32 and inserted into the locking channel 14; when the rotating gear 31 slides along the positioning shaft 32 and disengages from the driving rack 52, the rack in the tapered hole 311 meshes with the rack on the surface of the locking cones 33.

[0063] It should be noted that many patients who come to the hospital for gynecological examinations already have diseases. Vaginal sampling often requires careful attention to the presence of lesions. Forcibly opening the vagina for sampling can cause secondary harm to the patient. This device uses a rotating gear 31 to drive the arc-shaped strip 4 to open the vagina. Due to its high operational precision, the patient experiences slight pain after the drive sleeve 51 rotates to its final position. The doctor can then push the locking tube 34 at this pain point. After the locking gear slides and disengages from the drive rack 52, the rack inside the conical hole 311 on the locking gear engages with the rack on the surface of the locking cone 33, preventing the locking gear from rotating further. The drive sleeve 51 continues to rotate, opening the vaginal wall in other directions and reducing the patient's pain. The locking cone 33 can be replaced with a conical gear.

[0064] Furthermore, the rotating component 3 also includes:

[0065] The control lever 35 has one end that slides into the locking channel 14;

[0066] Control bearing 36, whose inner ring is connected to the end of locking tube 34;

[0067] The control spring 37 has one end connected to the outer ring of the control bearing 36 and the other end connected to the end of the control rod 35.

[0068] The control rod 35 is provided with a control thread 351, and the locking channel 14 is provided with a first mating thread 141 and a second mating thread 142 on the inner wall of the control rod 35; the control thread 351 is located between the first mating thread 141 and the second mating thread 142.

[0069] After the control lever 35 is pushed towards the rotating gear 31, it connects with the first mating thread 141 via the control thread 351. At this time, the control spring 37 is in a compressed state, and the rotating gear 31 disengages from the drive rack 52. However, since the rack inside the tapered hole 311 cannot directly mesh with the rack on the surface of the locking cone 33, the rotating gear 31 is not completely locked. But as the spreading rod 2 moves slightly under the pressure of the vaginal wall, the control spring 37 can push the rotating gear 31 towards the locking cone 33 to complete the locking. Conversely, when it is necessary for the rotating gear 31 to re-mesh with the drive rack 52, the control lever 35 can be pulled to connect the control thread 351 with the second mating thread 142. The control spring 37 is in a stretched state, which can pull the rotating gear 31. As the drive sleeve 51 rotates slightly, the teeth of the rotating gear 31 can mesh with the teeth of the drive rack 52.

[0070] Furthermore, the teeth of both the drive rack 52 and the rotating gear 31 include triangular prism teeth 521 and triangular pyramid blocks 522 connected to both ends of the triangular prism teeth 521. The end faces of the triangular pyramid blocks 522 are connected to the end faces of both ends of the triangular prism.

[0071] One end face of the triangular pyramid block 522 and the triangular prism tooth 521 is connected to the inner wall of the drive sleeve 51, and the remaining two end faces of the triangular pyramid block 522 are connected to the remaining two end faces of the triangular prism. The gear tooth structure is designed so that when the rotating gear 31 and the drive rack 52 need to re-mesh, the gear teeth have a guiding function, and can easily mesh under the action of the control spring 37, reducing jamming. Figure 6 As shown, the teeth on the rotating gear 31 are not drawn, but their structure is the same as that of the teeth on the drive rack 52.

[0072] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A device for taking a sample for a vaginal discharge test, characterized in that The utility model relates to a kind of dilating rods, comprising: Handheld part, with observation channel; Dilating rods are arranged in parallel, and one end is installed in the observation channel of handheld part; Wherein, the center line of dilating rod and the center line of observation channel are parallel to each other;Handheld part drives multiple dilating rods away from or close to the center line of observation channel; Handheld part includes: Handheld sleeve, its inside is observation channel, and multiple through inside and outside placement holes are set on its side wall; Rotating member, one is installed in each placement hole; Arc-shaped strip, one is connected to each rotating member, and the end away from rotating member is connected with the end of dilating rod; Driving member, installed on handheld sleeve, connected with rotating member; Wherein, when driving member drives rotating member fixed shaft rotation, the end of arc-shaped strip away from rotating member approaches or away from the center line of handheld sleeve; Driving member includes driving sleeve; Driving sleeve is rotatably arranged outside handheld sleeve;Driving rack is arranged on the inner wall of driving sleeve along the circumference; Rotating member includes rotating gear and positioning shaft; Positioning shaft is installed in placement hole, and rotating gear is sleeved on positioning shaft;Multiple rotating gears are engaged with driving rack outside;Rotating gear is connected with the end of arc-shaped strip; Rotating member further includes multiple locking cones;Locking cone is connected with the inner wall of corresponding placement hole;The tip of locking cone is connected with positioning shaft;Locking channel is set on the side wall of handheld sleeve corresponding to each placement hole;Locking channel is communicated with placement hole;The end of positioning shaft away from locking cone is inserted into locking channel;Tapered hole is set on the side of rotating gear facing locking cone;The outer wall of locking cone and the inner wall of tapered hole are respectively arranged with each other engaging rack;The end of rotating gear away from locking cone is connected with coaxial locking tube, and locking tube is sleeved on positioning shaft and inserted into locking channel;When rotating gear is disengaged from driving rack after sliding along positioning shaft, the rack in tapered hole is engaged with the rack on the surface of locking cone.

2. A device for collecting a sample of vaginal discharge according to claim 1, wherein Rotating member further includes: Control rod, one end is slidably inserted into locking channel; Control bearing, inner ring is connected with the end of locking tube; Control spring, one end is connected with the outer ring of control bearing, and the other ring is connected with the end of control rod; Wherein, control screw is set on control rod, and first matching screw and second matching screw are set on the inner wall of locking channel corresponding to control rod;Control screw is located between first matching screw and second matching screw.

3. A device for collecting a sample of vaginal discharge according to claim 2, wherein The teeth of driving rack and rotating gear include: Triangular prism tooth and triangular pyramid block connected at both ends of triangular prism tooth;The end surface of triangular pyramid block is connected with the end surface of both ends of triangular prism.

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