CN216702569U

CN216702569U - Flexible rectum sampling brush

Info

Publication number: CN216702569U
Application number: CN202122625383.XU
Authority: CN
Inventors: 崔俊祺; 陈骏; 饶娅敏
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-06-10
Anticipated expiration: 2031-10-29

Abstract

The utility model provides a flexible rectum sampling brush which comprises a support rod, wherein a holding part, an anus body contact part, a flexible sampling part and a spherical end part are sequentially arranged on the support rod according to the extending direction of the support rod; the holding part is used for holding by hands during sampling; the anus body contact part is used for positioning during sampling; the flexible sampling part is used for entering into the rectum for sampling; sampling villi are uniformly distributed on the spherical surface of the spherical end part and are used for sampling the front end of the rectum. The flexible rectum sampling brush provided by the utility model has the advantages that when a sample is collected, the spherical end part can prevent the intestinal tract from being punctured and improve the sampling safety, and on the other hand, when the sample enters the front end of the rectum, the resistance is generated, so that the front end of the rectum can be sampled; meanwhile, the flexible sampling part is consistent in shape with the rectum and can be fully contacted with the rectum wall, so that more and more comprehensive samples can be collected, and an important detection means is provided for the detection of novel coronavirus.

Description

Flexible rectum sampling brush

Technical Field

The utility model relates to the field of medical instruments, in particular to a flexible rectal sampling brush.

Background

Besides collecting nasopharyngeal swabs during the epidemic situation of the novel coronavirus, the anal swab is also an important reference for detection. Research shows that the combination of the nasopharyngeal swab and the anal swab can more accurately detect nucleic acid. There are two bendings on the rectum sagittal plane, and current cotton swab and rectum sample brush material are harder, because can't lead to the sampling volume not enough with the good laminating of rectum wall, gather not comprehensive scheduling problem, and stab the intestinal easily during the sample, have the potential safety hazard. Therefore, the development of a rectum sampling brush which can be well attached to the rectum wall and has high safety is of great significance.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a flexible rectal sampling brush that solves the problems of the prior art.

In order to achieve the above and other related objects, the present invention provides a flexible rectal sampling brush, comprising a support rod, wherein the support rod is provided with a holding part, an anal body contact part, a flexible sampling part and a spherical end part in sequence according to the extending direction of the support rod; the holding part is used for holding by hands during sampling; the anus body contact part is used for positioning during sampling; the flexible sampling part is used for entering into the rectum for sampling; sampling villi are uniformly distributed on the spherical surface of the spherical end part and are used for sampling the front end of the rectum.

In some embodiments of the present invention, the flexible sampling part is a rod-shaped structure made of a soft rubber material.

In some embodiments of the utility model, the bulbous end portion is made of a plastic material.

In some embodiments of the utility model, the diameter of the bulbous end portion is 1-1.2 cm.

In some embodiments of the utility model, the length of the anus contacting part is 1-1.5cm, and the length of the flexible sampling part is 9-11 cm.

In some embodiments of the utility model, the apparatus further comprises an inflatable balloon disposed around the flexible sampling portion, the inflatable balloon having sampling fluff uniformly distributed thereon.

In some embodiments of the present invention, an inflation member is disposed on the holding portion, and the inflatable airbag and the inflation member are communicated through an inflation channel. In some preferred embodiments of the utility model, the inflatable member is disposed around the grip portion.

In some embodiments of the utility model, the inflation channel is located in the support rod, and a membrane member is further provided in the inflation channel.

In some embodiments of the utility model, the cross-section of the support rod has a diameter of 0.3-0.5 cm.

In some embodiments of the utility model, the inflatable balloon has a cross-sectional diameter of 2.5-3cm when the inflatable balloon is in the inflated state.

In some embodiments of the utility model, the height of the sampling fluff is 0.4 to 0.5cm and the diameter of the cross-section of the sampling fluff is 0.05 to 0.1 cm.

Compared with the prior art, the utility model has the following beneficial effects:

1. the flexible rectum sampling brush provided by the utility model has the advantages that the spherical end part can prevent from stabbing intestinal tracts when a sample is collected, the resistance is generated when the flexible rectum sampling brush enters the front end of a rectum, the sampling safety is improved, on the other hand, the deformation of the flexible sampling part is consistent with the shape of the rectum and can be fully contacted with the rectum wall, and the spherical end part can sample the front end of the rectum, so that more and more comprehensive samples can be collected, and an important detection means is provided for the detection of novel coronavirus.

2. The rectal brush provided by the utility model can also be used for collecting the internal exfoliated cells of a patient, and the collected internal exfoliated cells can be used for cytological detection, so that diagnosis of some diseases (such as rectal tumors) is facilitated, and the missed diagnosis rate can be effectively reduced.

Drawings

Fig. 1 shows a diagram of the structure of the rectum.

FIG. 2 is a schematic view of the present invention.

Fig. 3 is a schematic diagram of the present invention.

The labels in the figure are: 1-support rod, 11-holding part, 12-anus body contact part, 13-sampling part, 14-inflation channel, 15-diaphragm part, 16-spherical end part, 2-inflation part, 3-inflatable air bag, 4-sampling fluff and 5-rectum.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 2, the utility model provides a flexible rectal sampling brush, which comprises a support rod 1, wherein the support rod 1 is sequentially provided with a holding part 11, an anus body contact part 12, a flexible sampling part 13 and a spherical end part 16 according to the extending direction; the holding part 11 is used for holding by hand during sampling; the anus body contact part 12 is used for positioning during sampling; the flexible sampling part 13 is used for entering into the rectum for sampling; sampling villi 4 are uniformly distributed on the spherical surface of the spherical end part 16 and are used for sampling the front end of the rectum. The flexible sampling device further comprises an inflatable air bag 3 arranged around the flexible sampling part 13, an inflatable part 2 is arranged on the holding part 11, the inflatable air bag 3 is communicated with the inflatable part 2 through an inflation channel 14, and sampling fluff 4 is uniformly distributed on the inflatable air bag 3. The spherical end portion 16 can prevent from stabbing the intestinal tract and improve sampling safety on one hand, and can sample the front end of the rectum on the other hand. Sampling villi 4 are uniformly distributed on the spherical end part 16 and can be fully contacted with the front end of the rectum, so that the sampling amount is increased, and the sampling is more comprehensive.

In some embodiments of the present invention, as shown in fig. 2, the flexible sampling portion 13 is a rod-shaped structure, and is made of a soft rubber material, for example, nitrile rubber, silicone rubber, etc., and has a certain hardness, which can ensure that the portion of the spherical end portion corresponding to the flexible sampling portion can enter the rectum, and also can deform along with the bending of the rectum in two directions during the process of entering the rectum, so that the inflatable balloon 3 can be attached to the wall of the rectum during the sampling process. The materials of the holding part 11 and the anus contact part 12 of the support rod 1 are not limited, and the corresponding functions can be realized.

In some embodiments of the present invention, the spherical end 16 is made of a plastic material, such as PE, PP, PS, PC, etc., or a blend modified plastic. In the flexible rectum sampling brush provided by the utility model, the spherical end part has a resistance feeling of touching the bottom when entering the front end of the rectum, so that the entering is stopped in time, and the sampling safety is improved.

In some embodiments of the present invention, the diameter of the bulbous end portion 16 is 1-1.2cm, which is sized to fit the size of the rectal front end to facilitate access to the rectal front end for sampling.

In some embodiments of the utility model, the length of the anus contact part 12 (i.e. the size of the support rod 1 in the extending direction) is 1-1.5cm for positioning during sampling; the length of the flexible sampling part 16 is 9-11cm, is suitable for the length of the rectum, and is used for entering the rectum to sample. In some embodiments of the utility model, the cross-section of the support rod has a diameter of 0.3-0.5 cm.

In some embodiments of the present invention, as shown in fig. 2, the present invention further comprises an inflatable balloon 3 disposed around the flexible sampling portion 16, wherein sampling fluff 4 is uniformly distributed on the inflatable balloon 3. When not inflated, generally conforms to the flexible sampling portion 13, and when the inflatable balloon 3 is inflated, a balloon may be formed around the flexible sampling portion 13 such that the sampling hairs 4 on the inflatable balloon 3 are in sufficient contact with the rectum. The sampling fluff 4 can be generally distributed uniformly over the inflatable bladder 3, and its surface can cover the sampling fluff 4 as densely as possible, so that a more comprehensive sample can be taken.

In some embodiments of the present invention, as shown in fig. 2, the inflatable member 2 is disposed on the holding portion 11, and the inflatable airbag 3 is communicated with the inflatable member 2 through an inflation channel 14. In some preferred embodiments of the present invention, the inflatable member 2 is disposed around the holding portion 11, and the gas in the inflatable member 11 enters the inflatable airbag 3 through the inflation channel 14 by holding the inflatable member 2 with a hand, which is convenient and fast to operate. The inflatable member 2 of the present invention may be made of an elastic material, and may include a hollow cavity, so that when the inflatable member needs to be inflated, the gas in the cavity may be inflated into the inflatable air bag 3 by squeezing, and when the flexible rectal sampling brush needs to be withdrawn from the human body, the inflatable member 2 may be reset, and the gas in the inflatable air bag 3 may return to the cavity of the inflatable member 2 under the pressure of the anus and the driving of the reset of the inflatable member 2, so as to take out the flexible rectal sampling brush. The inflatable body 2 may be a hollow ball made of rubber, for example.

In some embodiments of the utility model, the inflation channel 14 is located in the support bar 1, as shown in figure 2, to make the overall structure more compact. A diaphragm member 15 is also provided in the inflation passage 14. The membrane 15 is normally capable of withstanding a certain pressure and is burst upon exposure to a certain gas pressure, thereby ensuring that no gas is filled into the inflatable balloon 3 before use of the flexible rectal sampling brush, and that the membrane 15 is burst by squeezing the inflatable member 2 to fill the inflatable balloon 3 with sufficient gas when required for use. The diaphragm member 15 may specifically be, for example, a plastic film or the like.

The flexible rectal sampling brush of the present invention provides that the inflated size of the inflatable balloon 3 generally matches the size of the human rectum, for example, the diameter of the cross-section of the inflatable balloon 3 may be 2.5-3cm when the inflatable balloon 3 is in the inflated state.

In the flexible rectal sampling brush provided by the utility model, the sampling fluff 4 generally needs to have sufficient flexibility and size, so that the sample can be collected on the premise of ensuring no injury to the intestinal tract. For example, the height of the sampling pile 4 may be 0.4 to 0.5cm, and the diameter of the cross section of the sampling pile 4 may be 0.05 to 0.1 cm. The size of the sampled fuzz on the spherical surface of the spherical end 16 may be the same as or different from the size of the sampled fuzz distributed on the inflatable bladder 3.

The working principle is as follows: when the rectum sampling brush provided by the application is used, as shown in fig. 3, the spherical end part 16 of the support rod 1 and the part (including the inflatable air bag 3) corresponding to the flexible sampling part 13 extend into the anus, and in the process that the sampling brush enters the rectum 5, the flexible sampling part 13 can deform along with the bending of the rectum 5 in two directions, and the spherical end part 16 can prevent from stabbing intestinal tracts on one hand, and on the other hand, when the sampling brush reaches the front end of the rectum, the front end of the rectum can be sampled, so that the sampling is more comprehensive; when the spherical end part 16 reaches the front end of the rectum, the touch-bottom resistance feeling is generated, the entrance is stopped, the anus is positioned at the position of the anus body contact part 12, and the holding part 11 and the inflatable piece 2 arranged on the holding part are exposed out of the human body. Then, as shown in fig. 2, by holding the inflatable member 2 disposed around the holding portion 11, the gas in the inflatable member 2 breaks the diaphragm member 15, and fills the inflatable balloon 3 through the inflation channel 14, so that the inflatable balloon 3 is in an inflated state, and since the flexible sampling portion 13 deforms to conform to the shape of the rectum 5, the inflatable balloon 3 in the inflated state can be fully attached to the rectum 5, the sampling fluff 4 thereon can be in close contact with the rectal wall, and the sampling brush can be appropriately rotated back and forth, so as to collect more and more comprehensive samples (e.g., an anal swab sample, an intestinal cell sample, etc.). After sampling is finished, the rectum sampling brush can be withdrawn, and the gas in the inflatable air bag 3 can be pressed back due to the pressure of the anus, so that the whole rectum sampling brush can be smoothly taken out. Subsequently, the spherical end 16 of the sampling brush and the corresponding part (including the inflatable air bag 3) of the flexible sampling part 13 can be placed in the cell preservation solution, so that the body fluid or the internal exfoliated cells of the detected person attached to the sampling fluff 4 are eluted, and the obtained eluent can be used as a sample to be sent to a relevant department for subsequent detection.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. The flexible rectum sampling brush is characterized by comprising a support rod (1), wherein the support rod (1) is sequentially provided with a holding part (11), an anus body contact part (12), a flexible sampling part (13) and a spherical end part (16) according to the extending direction of the support rod; the holding part (11) is used for holding by hand during sampling; the anus body contact part (12) is used for positioning during sampling; the flexible sampling part (13) is used for entering into the rectum for sampling; sampling villi (4) are uniformly distributed on the spherical surface of the spherical end part (16) and are used for sampling the front end of the rectum.

2. A rectal sampling brush according to claim 1, characterised in that the flexible sampling part (13) is of rod-like construction, made of a soft rubber material.

3. A rectal sampling brush according to claim 1, characterised in that the spherical end portion (16) is made of a plastic material.

4. A rectal sampling brush according to claim 1, characterised in that the diameter of the bulbous end portion (16) is 1-1.2 cm.

5. A rectal sampling brush according to claim 1, characterised in that the length of the anal body contacting part (12) is 1-1.5cm and the length of the flexible sampling part (13) is 9-11 cm.

6. A rectal sampling brush according to claim 1, further comprising an inflatable balloon (3) arranged around the flexible sampling portion (13), the inflatable balloon (3) having sampling hairs (4) uniformly distributed thereon.

7. A rectal sampling brush according to claim 6, characterised in that the grip portion (11) is provided with an inflatable member (2), the inflatable balloon (3) and the inflatable member (2) being in communication via an inflation channel (14).

8. A rectal sampling brush according to claim 7, characterised in that the aerating channel (14) is located in the support rod (1); a diaphragm piece (15) is also arranged in the inflation channel (14).

9. A rectal sampling brush according to claim 6, characterised in that the cross-section of the support rod (1) has a diameter of 0.3-0.5 cm; the diameter of the cross-section of the inflatable balloon (3) is 2.5-3cm when the inflatable balloon (3) is in the inflated state.

10. A rectal sampling brush according to claim 1 or 6, characterised in that the height of the sampling hairs (4) is 0.4-0.5cm and the diameter of the cross-section of the sampling hairs (4) is 0.05-0.1 cm.