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CN-121987254-A - Vaginal secretion sampling device

CN121987254ACN 121987254 ACN121987254 ACN 121987254ACN-121987254-A

Abstract

The invention relates to the technical field of gynecological medical appliances, in particular to a vaginal secretion sampling device which comprises a cannula, a sampling assembly, a plurality of expansion assemblies, a plurality of push plates, a limiting frame and an adjusting assembly. One end of the cannula is open, and the sampling assembly is sleeved on the outer surface of the cannula. A plurality of expansion components are all arranged in the cannula, and a plurality of pushing plates are all arranged between the cannula and the sampling component. The limiting frame is fixedly arranged at the open end of the cannula, and the limiting frame comprises a guide cylinder. The adjusting component comprises a positioning rod which is arranged in the guide cylinder and can slide along the inner wall of the guide cylinder, an ejector rod is fixedly arranged at one end of the positioning rod, which is close to the insertion pipe, and the central axes of the guide cylinder, the positioning rod and the ejector rod are all collinear with the central axis of the insertion pipe. When the invention is used, the guide cylinder can limit the position-adjusting rod to always move along the central axis of the cannula, the ejector rod can not incline, the sampling assembly can be uniformly stretched, the normal operation of the sampling process can be ensured, and the comfort level of female patients is improved.

Inventors

  • SHI NANNAN

Assignees

  • 中国人民解放军北部战区总医院

Dates

Publication Date
20260508
Application Date
20260227

Claims (8)

  1. 1. A vaginal secretion sampling device, comprising: One end of the insertion tube is open; The sampling assembly is sleeved on the outer surface of the cannula; the expansion assemblies are arranged in the insertion tube and are radially distributed; the pushing plates are arranged between the insertion pipe and the sampling assembly and are respectively connected with the output ends of the expansion assemblies; The limiting frame is fixedly arranged at the open end of the insertion tube and comprises a guide cylinder; The adjusting component comprises a positioning rod, the positioning rod is arranged in the guide cylinder and can slide along the inner wall of the guide cylinder, the positioning rod is close to one end of the insertion pipe and is fixedly provided with a push rod, and the central axes of the guide cylinder, the positioning rod and the push rod are all collinear with the central axis of the insertion pipe.
  2. 2. The vaginal secretion sampling device according to claim 1, wherein the expansion assembly comprises a force-bearing rod, the length extension direction of the force-bearing rod is parallel to the central axis of the cannula, the force-bearing rod is connected with the push plate through a supporting rod, a spring is sleeved on the outer surface of the supporting rod, and the diameter of the end, close to the force-bearing rod, of the supporting rod is smaller than the diameter of the end, far away from the force-bearing rod.
  3. 3. The vaginal secretion sampling device according to claim 2, wherein the force bar has a triangular cross section, an arc-shaped guide surface is arranged at one end of the force bar near the ejector rod, the ejector rod comprises a thin bar and a thick bar, a transition bar is arranged between the thin bar and the thick bar, the outer surface of the thin bar and the outer surface of the transition bar are in smooth transition, and the outer surface of the transition bar and the outer surface of the thick bar are in smooth transition.
  4. 4. The vaginal secretion sampling device of claim 2, wherein the adjustment assembly further comprises: the expansion plates are arranged on one side, far away from the insertion pipe, of the ejector rod, the outer surfaces of the expansion plates are aligned with the outer surfaces of the ends, close to the stressed rods, of the ejector rod, one ends, far away from the ejector rod, of the expansion plates are hinged with the outer surfaces of the position adjusting rods, and the expansion plates are in one-to-one correspondence with the positions of the stressed rods; the angle control assembly is arranged in the positioning rod and used for driving the expansion plates to synchronously rotate.
  5. 5. The vaginal secretion sampling device of claim 4, wherein the angle control assembly comprises: The side wall of the assembly disc is provided with a plurality of force application rods, the side wall of the positioning rod is provided with an avoidance channel, the force application rods are respectively arranged in the avoidance channels, and the tops of the force application rods are abutted against the bottom surface of the expansion plate; and the output end of the electric telescopic rod is connected with the assembly disc.
  6. 6. The vaginal secretion sampling device according to claim 5, wherein the bottom surface of the expansion plate is provided with a metal plate, the top of the force applying rod is provided with a magnet, and the metal plate corresponds to the position of the magnet.
  7. 7. The vaginal secretion sampling device according to claim 1, wherein the sampling assembly comprises an elastic bandage, the outer surface of the elastic bandage is provided with medical absorbent cotton, and both ends of the elastic bandage are respectively provided with a hook surface patch and a hair surface patch.
  8. 8. The vaginal secretion sampling device according to claim 7, wherein the bottom of the limiting frame is provided with a separation assembly, the separation assembly comprises an arc-shaped sheet, one end of the hook surface patch is provided with a first notch, one end of the hair surface patch is provided with a second notch, and the positions of the first notch and the second notch correspond to each other and are the same as the width of the arc-shaped sheet.

Description

Vaginal secretion sampling device Technical Field The invention relates to the technical field of gynecological medical appliances, in particular to a vaginal secretion sampling device. Background The detection of vaginal secretion in gynecological examination is important, and can be used for diagnosing colpitis and sexually transmitted diseases and evaluating vaginal microecological balance. After the sampling device is inserted into the vagina, a larger sampling area can cover more areas of the vagina, so that the detection rate can be improved, repeated sampling can be avoided, and the early lesion detection rate can be improved. For example, the chinese patent application No. CN202223521700.4 provides a vaginal secretion sampler, and when the vaginal secretion sampler is used, a user inserts a pushing pen into an insertion tube, the pushing pen pushes a plurality of expansion rods in a direction away from the center of the insertion tube, one end of each expansion rod drives a pushing shell to expand outwards, and the pushing shell drives a medical elastic bandage on the surface of the pushing shell to stretch, so that the sampling area is increased finally. The device has the defects that the moving direction of the pushing pen is controlled only by the hand of a user, and as the pushing pen is inserted into the cannula, a large gap exists between the pushing pen and the inner wall of the cannula, once the hand of the user shakes in the process of controlling the pushing pen, the pushing pen can incline. At this time, only one part of the expansion rods move, and the other part of the expansion rods are not moved, so that the medical elastic bandage cannot be uniformly stretched, the normal operation of the sampling process is prevented, and the comfort level of female patients is reduced. Disclosure of Invention The invention aims to provide a vaginal secretion sampling device, a guide cylinder can limit a positioning rod to move along the central axis of a cannula all the time, a push rod cannot incline, a sampling assembly can be uniformly stretched, normal operation of a sampling process can be ensured, and comfort level of female patients is improved. The vaginal secretion sampling device comprises an insertion tube, a sampling assembly, a plurality of expansion assemblies, a plurality of pushing plates, a limiting frame and an adjusting assembly, wherein one end of the insertion tube is open, the sampling assembly is sleeved on the outer surface of the insertion tube, the expansion assemblies are arranged in the insertion tube and are distributed radially, the pushing plates are arranged between the insertion tube and the sampling assembly and are respectively connected with the output ends of the expansion assemblies, the limiting frame is fixedly arranged at the open end of the insertion tube and comprises a guide cylinder, the adjusting assembly comprises a position adjusting rod which is arranged in the guide cylinder and can slide along the inner wall of the guide cylinder, and a push rod is fixedly arranged at one end of the position adjusting rod close to the insertion tube, and the central axes of the guide cylinder, the position adjusting rod and the push rod are all collinear with the central axis of the insertion tube. Preferably, the expansion assembly comprises a stress rod, the length extension direction of the stress rod is parallel to the central axis of the insertion tube, the stress rod is connected with the push plate through a supporting rod, a spring is sleeved on the outer surface of the supporting rod, and the diameter of the supporting rod, which is close to one end of the stress rod, is smaller than the diameter of the supporting rod, which is far away from one end of the stress rod. Preferably, the cross section of atress pole is triangle-shaped, the atress pole is close to ejector pin one end is equipped with the arc guide surface, the ejector pin includes thin pole and thick pole, thin pole with be equipped with the transition pole between the thick pole, thin pole the surface with smooth transition between the surface of transition pole, the surface of transition pole with smooth transition between the surface of thick pole. Preferably, the adjusting assembly further comprises a plurality of expansion plates which are arranged on one side, far away from the insertion pipe, of the ejector rod, the outer surfaces of the expansion plates are aligned with the outer surfaces of one ends, close to the stressed rods, of the ejector rod, one ends, far away from the ejector rod, of the expansion plates are hinged with the outer surfaces of the position adjusting rods, the expansion plates are in one-to-one correspondence with the positions of the stressed rods, and an angle control assembly is arranged in the position adjusting rods and used for driving the expansion plates to synchronously rotate. Preferably, the angle control assembly comprises an assembly disc, an electric