CN219846640U

CN219846640U - Cervical fetal cell collector

Info

Publication number: CN219846640U
Application number: CN202221997849.7U
Authority: CN
Inventors: 顾江
Original assignee: Chengdu Jinxin Institute Of Reproductive Medicine And Genetics
Current assignee: Chengdu Jinxin Institute Of Reproductive Medicine And Genetics
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-10-20
Anticipated expiration: 2032-07-29

Abstract

The utility model provides a cervical fetal cell collector, which comprises a liquid-passing pipe and a baffle, wherein the liquid-passing pipe comprises a pipe front end and a pipe rear end, and the baffle is arranged on the pipe body of the liquid-passing pipe and is close to the pipe front end; the front end port of the pipe is provided with a pipe orifice blocking structure, and the front end of the pipe and the pipe orifice blocking structure are provided with a plurality of liquid through holes; the rear end of the tube is used for connecting with a syringe. Thereby realizing that the fetal cells which are stretched into the cervical opening to obtain the falling fetal cells, ensuring that the liquid-passing tube only stretches into the cervical orifice to a preset depth, not affecting the gestation environment in the uterine cavity, and achieving the technical effects of avoiding the damage to the mucosa of the cervical canal and reducing the obtained biological materials to contain less maternal cells.

Description

Cervical fetal cell collector

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a cervical fetal cell collector.

Background

Early prenatal diagnosis is necessary for the detection of fetal genetic disease and is now widely used in China and throughout the other world.

In the prior art, for example, patent "biological sampling device" (patent number: 201080014151.2), which adopts a sampling head to collect biological materials such as cells, mucus and biological liquid, the sampling head is specifically a long sheet-shaped foam or sponge; for another example, patent "Disposable cervical canal inner segment shed fetal cell harvester" (patent number 201320022358.5), fetal cells are obtained by a flexible brush head with a flexible protective pad connected to the end of the brush head. Both structures still have lesions to the cervical mucosa and the biological material obtained will contain more maternal cells.

Disclosure of Invention

An object of an embodiment of the present utility model is to provide a cervical fetal cell collector for obtaining detached fetal cells by extending into a cervical opening and achieving the technical effects of avoiding damage to cervical canal mucosa and reducing the amount of maternal cells contained in the obtained biological material.

The embodiment of the utility model provides a cervical fetal cell collector, which comprises a liquid-passing pipe and a baffle, wherein the liquid-passing pipe comprises a pipe front end and a pipe rear end, and the baffle is arranged on the pipe body of the liquid-passing pipe and is close to the pipe front end; the front end port of the pipe is provided with a pipe orifice blocking structure, and the front end of the pipe and the pipe orifice blocking structure are provided with a plurality of liquid through holes; the rear end of the tube is used for connecting with a syringe.

Further, the baffle comprises a disc-shaped body and a connecting ring, wherein a through hole is arranged in the center of the disc-shaped body, and the connecting ring is arranged on the bottom surface of the disc-shaped body and communicated with the through hole; the liquid through pipe is arranged in the through hole and the connecting ring in a penetrating way.

Further, the upper surface of the disk-shaped body is concave in an arc.

Further, the thickness of the disk-shaped body is configured to be thinned from thick to thin from the center thereof to the edge thereof.

Further, the disk-shaped body edge, the through-hole inner edge, the inner edge and the outer edge of the connecting ring end are all configured as fillets.

Further, the baffle comprises a cross-shaped body and a connecting ring, wherein a through hole is arranged in the center of the cross-shaped body, and the connecting ring is arranged on the bottom surface of the cross-shaped body and communicated with the through hole; the liquid through pipe is arranged in the through hole and the connecting ring in a penetrating way.

Further, the upper surface of the cross-shaped body is concave in an arc shape; the thickness of the cross-shaped body is configured to be thinned from the middle to the edge; the edge of the cross-shaped body, the inner edge of the through hole, the inner edge and the outer edge of the end part of the connecting ring are all configured as fillets.

Further, the pipe orifice blocking structure is hemispherical, and the pipe orifice blocking structure and the liquid through pipe are integrally formed.

Further, the rear end of the tube is communicated with a connector for connecting the injector, and a connecting hole for communicating the liquid tube is arranged in the connector.

Further, the cervical fetal cell collector further comprises a standby sealing head, and the standby sealing head is used for sealing the connecting hole of the connector.

The utility model has the beneficial effects that: the front end of the liquid passing pipe extends into the uterine orifice, and the baffle is abutted against the outer side of the uterine orifice, so that the overlong liquid passing pipe is prevented from extending into the uterine orifice; injecting normal saline or buffer solution into the liquid-passing tube by using the injector, slightly flushing the uterus by using the normal saline or buffer solution in the liquid-passing tube, and slightly pulling the injector reversely, so that the fetal cells with enough quantity can be collected by repeatedly slightly flushing and collecting the syringe; the fetal cell collection mode is different from the cervical brush structure, so that the damage to cervical canal mucosa can be avoided, and maternal cells with excessive impurities in the obtained cells can be avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments of the present utility model will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a cervical fetal cell collector according to a first embodiment of the utility model;

FIG. 2 is a schematic view showing the internal structure of a cervical fetal cell collector according to a first embodiment of the utility model;

FIG. 3 is a perspective view of a barrier according to a first embodiment of the present utility model;

FIG. 4 is a perspective view of a cervical fetal cell collector of a second embodiment of the utility model;

FIG. 5 is a perspective view of a barrier according to a second embodiment of the present utility model;

fig. 6 is a front view of a cervical fetal cell collector according to a first embodiment of the utility model.

Icon: 10-liquid passing pipe, 11-pipe front end, 12-pipe rear end, 13-pipe orifice blocking structure, 14-liquid passing hole, 20-baffle, 21 a-disc-shaped body, 21 b-cross-shaped body, 22-connecting ring, 23-through hole, 31-connector and 32-standby sealing head.

Detailed Description

The technical solutions in the embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Embodiment one:

referring to fig. 1-6, the utility model provides a cervical fetal cell collector, comprising a liquid-passing tube 10 and a baffle 20, wherein the liquid-passing tube 10 comprises a tube front end 11 and a tube rear end 12, and the baffle 20 is arranged on the tube body of the liquid-passing tube 10 and is close to the tube front end 11; the port of the front end 11 of the pipe is provided with a pipe orifice blocking structure 13, and the front end 11 of the pipe and the pipe orifice blocking structure 13 are provided with a plurality of liquid through holes 14; the tube rear end 12 is used to connect to a syringe that uses a standard syringe.

It should be noted that, the front end 11 of the liquid passing tube 10 extends into the uterine orifice, and the baffle 20 is abutted against the outer side of the uterine orifice, so as to avoid the overlong liquid passing tube 10 extending into the uterine orifice; injecting normal saline or buffer solution into the liquid-passing tube 10 by using the injector, slightly flushing the uterus by using the normal saline or buffer solution in the liquid-passing tube 10, and slightly pulling the injector reversely, so that the sufficient number of fetal cells can be collected by repeatedly slightly flushing and collecting the syringe; the fetal cell collection mode is different from the cervical brush structure, so that the damage to cervical canal mucosa can be avoided, and maternal cells with excessive impurities in the obtained cells can be avoided.

In this embodiment, the baffle 20 includes a disc-shaped body 21a and a connection ring 22, the center of the disc-shaped body 21a is provided with a through hole 23, and the connection ring 22 is arranged on the bottom surface of the disc-shaped body 21a and is communicated with the through hole 23; the liquid passing pipe 10 is arranged in the through hole 23 and the connecting ring 22 in a penetrating way. The liquid passing tube 10 is in interference fit with the through hole 23 and the inner wall of the connecting ring 22, and has extrusion friction force with each other, so that the position of the liquid passing tube cannot be moved due to operation in the vagina and the cervix. Meanwhile, the distance between the baffle 20 and the front end 11 of the tube can be adjusted by forcefully sliding, and the distance is adjusted to adapt to cervical lengths of different women, and the cervical lengths can be measured by an ultrasonic instrument in the earlier stage. Typically, the distance between the barrier 20 and the orifice blocking structure 13 is 0.5-2.5cm. Thereby avoiding the liquid through pipe 10 from being inserted too deeply and entering the uterine cavity to influence the normal pregnancy of pregnant women.

The upper surface of the disk-shaped body 21a is concave in an arc shape, so that the disk-shaped body can be self-adapted to the outer side of the cervical orifice, and physiological saline containing fetal cells is further prevented from flowing into the approach; however, during repeated irrigation and collection, fluid is not prevented from flowing into the vagina, and the operator can collect the fluid from the posterior fornix into the syringe. The thickness of the disc-shaped body 21a is configured to be thinner from the middle to the edge thereof, so that the barrier 20 can be provided with a certain hardness, leakage caused by excessive deformation in the operation process is avoided, more deformation can be generated between the outer side of the barrier 20 and the edge, and damage to the vagina and uterus is avoided. The edges of the disc-shaped body 21a, the inner edges of the through holes 23 and the inner edges and the outer edges of the end parts of the connecting rings 22 are all provided with round corners, and the round corners are also used for avoiding damage to the vagina and uterus. And the baffle 20 is made of transparent rubber, which is beneficial to preventing the sight of the operator stretching the front end 11 of the tube into the uterus opening from being shielded.

In this embodiment, the orifice blocking structure 13 is hemispherical, and has smooth and round surface, so as to avoid damage to vagina and uterus. And the orifice blocking structure 13 and the liquid passing tube 10 are integrally formed.

In this embodiment, the rear end 12 of the tube is connected to a connector 31 for connecting to a syringe, and a connection hole for connecting to the liquid-passing tube 10 is provided in the connector 31. Thereby facilitating the connection between the injector and the liquid-passing tube 10, avoiding liquid leakage, ensuring medical sanitary requirements and avoiding pollution of the needle head and the liquid.

In this embodiment, the cervical fetal cell collector further comprises a standby sealing head 32, and the standby sealing head 32 is used for sealing the connecting hole of the connecting head 31. And spare seal head 32 end connection has the thin rod piece, and spare seal head 32 seals in the connecting hole of connector 31, and the thin rod piece stretches into liquid passing tube 10, because liquid passing tube 10's pipe front end 11 is provided with mouth of pipe and blocks structure 13, consequently be inconvenient for disposing seal structure at pipe front end 11, but pipe front end 11 is provided with liquid passing hole 14 again, and bacterium etc. can get into liquid passing tube 10 from liquid passing hole 14, so dispose thin rod piece and stretch into liquid passing tube 10 to stretch into pipe front end 11, thereby avoid the bacterium to get into liquid passing tube 10 from liquid passing hole 14.

Embodiment two:

on the basis of the first embodiment, only the differences in the specific structure of the barrier 20 exist: the baffle 20 comprises a cross-shaped body 21b and a connecting ring 22, wherein a through hole 23 is arranged in the center of the cross-shaped body 21b, and the connecting ring 22 is arranged on the bottom surface of the cross-shaped body 21b and communicated with the through hole 23; the liquid passing pipe 10 is arranged in the through hole 23 and the connecting ring 22 in a penetrating way. The cross structure can also control the liquid through pipe 10 to extend too long, further save materials, and the operator can observe the extending condition of the front end 11 of the pipe from four gaps of the cross structure more conveniently, and the visibility is better than that of the disc-shaped body 21a.

In the present embodiment, the upper surface of the cross-shaped body 21b is concave in an arc shape; the thickness of the cross-shaped body 21b is configured to be thinned from the center thereof to the edge thereof; the edges of the cross-shaped body 21b, the inner edges of the through holes 23, the inner edges and the outer edges of the ends of the connecting ring 22 are rounded. Note that the cross-shaped body 21b has all the advantages of the disk-shaped body 21a described in the first embodiment, and a description thereof will be omitted.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The cervical fetal cell collector is characterized by comprising a liquid passing pipe and a baffle, wherein the liquid passing pipe comprises a pipe front end and a pipe rear end, and the baffle is arranged on the pipe body of the liquid passing pipe and is close to the pipe front end; the front end port of the pipe is provided with a pipe orifice blocking structure, and the front end of the pipe and the pipe orifice blocking structure are provided with a plurality of liquid through holes; the rear end of the tube is used for connecting with a syringe.

2. The cervical fetal cell collector of claim 1, wherein the barrier comprises a disk-shaped body centrally disposed with a through-hole and a connecting ring disposed on a bottom surface of the disk-shaped body and in communication with the through-hole; the liquid through pipe penetrates through the through hole and the connecting ring.

3. The cervical fetal cell collector of claim 2, wherein the upper surface of the disk-shaped body is concave in shape.

4. A cervical fetal cell collector as claimed in claim 2 or claim 3, wherein the thickness of the disc-shaped body is configured to taper from thick to thin from its middle to its edges.

5. A cervical fetal cell collector as claimed in claim 2 or claim 3, wherein the disc-shaped body rim, the inner rim of the through-hole, the inner rim and the outer rim of the connecting ring end are each configured as rounded corners.

6. The cervical fetal cell collector of claim 1, wherein the barrier comprises a cross-shaped body with a through hole disposed in the center thereof and a connecting ring disposed on the bottom surface of the cross-shaped body and in communication with the through hole; the liquid through pipe penetrates through the through hole and the connecting ring.

7. The cervical fetal cell collector of claim 6, wherein the upper surface of the cross-shaped body is concave in shape of a circular arc; the thickness of the cross-shaped body is configured to be thinned from the middle to the edge; the edge of the cross-shaped body, the inner edge of the through hole, the inner edge and the outer edge of the end part of the connecting ring are all provided with round corners.

8. The cervical fetal cell collector of claim 1, wherein the orifice blocking structure is hemispherical and the orifice blocking structure and the fluid passage tube are integrally formed.

9. The cervical fetal cell collector of claim 1, wherein the rear end of the tube is connected with a connector for connecting with a syringe, and a connecting hole for connecting with the liquid-passing tube is arranged in the connector.

10. The cervical fetal cell harvester of claim 9, further comprising a backup sealing head for sealing the connection aperture of the connector.