Device for collecting microbe sample and endometrial sample in uterine cavity

Abstract

The invention relates to the technical field of medical apparatus and instruments, in particular to an intrauterine microbiological sample and endometrial sample collecting device which comprises an outer catheter, an inner catheter, a working plate, an auxiliary cylinder and the like, is made of a soft medical silica gel material, has certain elasticity and flexibility, and can protect a cervical orifice and an endometrial and prevent injury. Scale marks are uniformly arranged on the outer wall of the inner catheter, so that a doctor can be guided to perform depth control in the operation process, and the depth can be adjusted according to detection requirements. Besides, the inner catheter is arc-shaped, has certain flexibility and elasticity and can adapt to uterus positions at different angles, and the collection success rate is increased; the sampling head structure comprises a spherical structure, a brush structure and a claw structure and can adapt to collection of different types of tissues; the endometrial specimen collecting device has high accuracy and reliability in the aspect of endometrial specimen collection, is beneficial for improving the diagnosis effect and the treatment effect, and has wide application prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a device for collecting intrauterine microbial samples and endometrial specimens. Background Art

[0002] In modern medicine, obtaining endometrial tissue samples and microbial samples is an important means of diagnosing and treating a series of gynecological diseases, such as endometriosis, endometrial cancer, cervical cancer, etc. Traditional methods of collecting endometrial tissue include diagnostic curettage, hysteroscopy + endometrial biopsy. Although these methods have been widely used, there are still some problems:

[0003] 1. Hysteroscopy can only observe the surface of the endometrium with the naked eye, and pathological examination of the endometrium is required to obtain more information. However, the cost of hysteroscopy is high, and for outpatients, endometrial biopsy under hysteroscopy is not the best choice.

[0004] 2. Diagnostic curettage requires obtaining samples by scraping cells from the surface of the endometrium. The cervix is ​​first dilated to facilitate the curette to enter and exit the uterine cavity to scrape the uterine cavity and take endometrial samples. However, this method may cause damage to the endometrium. For women of childbearing age who have not yet given birth and have fertility needs, diagnostic curettage should be avoided as much as possible.

[0005] 3. When the existing endometrial collection device is used, if the collection end is small, it is easy to be difficult to contact the inner wall of the uterus, and the collection efficiency is low. If the collection end is large, the inner wall of the uterus is scratched during entry and removal, causing pain.

[0006] In view of the above problems, a device for collecting intrauterine microbial samples and endometrial specimens is proposed, which can obtain enough endometrial tissue, avoid multiple sampling, and avoid damaging the endometrium; consider the discomfort problem of different uterine positions and accurately collect samples for analysis. Summary of the invention

[0007] The purpose of the present invention is to provide an intrauterine microbial sample and endometrial specimen collection device that can obtain enough endometrial tissue, avoid multiple sampling, and avoid damaging the endometrium; can adapt to various positions of the uterus and reduce patient discomfort; and has excellent effectiveness, practicality, and safety.

[0008] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0009] A device for collecting intrauterine microbial samples and endometrial specimens comprises an outer catheter and an inner catheter. The inner catheter is slidably connected to the inner wall of the outer catheter, the head end of the outer catheter is provided with a working plate for abutting against the cervical opening, and the end of the outer catheter is provided with a tightening screw for fixing the position of the inner catheter; the inner catheter is provided with a sampling head, and the inner catheter is provided with a handle and a control line for controlling the operation of the sampling head.

[0010] Preferably, the head end of the inner catheter is slidably connected to the inner wall of the outer catheter, the end of the inner catheter is fixedly connected to a handle, one side of the handle is provided with a working groove and a control button, the control button slides in the working groove, and the control button is fixedly connected to the control line.

[0011] Preferably, the outer wall of the inner catheter is evenly provided with scale lines, the position of the head end of the inner catheter is the zero scale line, the inner catheter is arc-shaped, and the inner catheter is made of elastic medical material.

[0012] Preferably, the sampling head has three structures: spherical, brush-shaped and claw-shaped. The spherical sampling head includes multiple groups of arc rods, and each group of arc rods forms an elliptical or circular structure accordingly. A fixing ring is provided on the inner wall of the head end of the inner catheter, and the two ends of each group of arc rods are connected accordingly. The head end of each group of arc rods is fixedly connected to the control line, and the end of each group of arc rods is slidably connected to the control line. The end of each group of arc rods is fixedly connected to the fixing ring, and the control line slides in the through hole provided in the fixing ring. A sampling layer is provided on the surface of each group of arc rods, and the sampling layer is a concave-convex surface structure.

[0013] Preferably, the brush-like sampling head includes a working rod and a brush, the bottom end of the working rod is fixedly connected to a fixed ring, the brushes are evenly arranged in multiple groups and connected to the outer wall of the working rod, the outer wall of the working rod is evenly provided with through holes for the brushes to pass through, and each group of the brushes is fixedly connected to a control line via a through hole.

[0014] Preferably, the claw-shaped sampling head comprises a center rod and multiple groups of sampling rods, the bottom end of each group of sampling rods is fixedly connected to a fixing ring, each group of sampling rods is a multiple-group connecting rod structure, each group of connecting rods is connected by a rotating shaft, each group of rotating shafts is provided with a torsion spring, the force direction of the torsion spring is to make the connecting rod tilt outward based on the center of the fixing ring; the center rod is fixedly connected to the top of the fixing ring and is provided with a through hole with the same diameter as the fixing ring for the control line to pass through, the side wall of the center rod is also provided with a through hole for the control line to pass through, and the center position of each group of sampling rods is connected to the control line.

[0015] Preferably, a contact layer is provided on the outer surface of each group of sampling rods, and the contact layer is made of a soft medical material. A plurality of groups of grooves for collecting scraped samples are evenly provided on the outer surface of the contact layer.

[0016] Preferably, the end of the outer catheter is provided with multiple groups of slots and uniformly provided with external threads, and the fastening screw button is correspondingly provided with internal threads and adapted to the external threads; the head end of the outer catheter is fixedly connected to a working plate.

[0017] Preferably, the working plate is elliptical or circular, and is made of soft medical silicone. One end of the working plate is fixedly connected to the outer wall of the outer catheter, and the other end of the working plate is provided with an auxiliary tube, and the auxiliary tube is truncated cone-shaped with an arc-shaped inclined structure in cross section; the end of the auxiliary tube is fixedly connected to the working plate, the auxiliary tube is connected to the outer catheter, and the head end of the auxiliary tube is provided with an opening for the inner catheter to pass through.

[0018] Beneficial effects of the present invention:

[0019] The intrauterine microbial sample and endometrial specimen collection device proposed by the present invention can effectively sample endometrial tissue, avoid multiple sampling, and avoid damaging the endometrium; it can adapt to various positions of the uterus and reduce patient discomfort.

[0020] The present invention can obtain enough endometrial tissue without damaging the endometrium. The inner catheter and the sampling head are both made of elastic medical materials, can adapt to uteruses in different positions, have certain toughness and elasticity, and avoid unnecessary damage to the endometrium.

[0021] The working plate, auxiliary tube and other components of the present invention are made of soft medical silicone material, which has certain elasticity and flexibility, can protect the cervical opening and endometrium, and prevent damage. The outer wall of the inner catheter is evenly provided with scale lines, which can guide the doctor to control the depth during the operation and adjust the depth according to the detection requirements. In addition, the inner catheter is arc-shaped, has certain flexibility and elasticity, can adapt to the position of the uterus at different angles, and improve the success rate of collection. The collection device is reasonably designed, simple and easy to learn, and can complete the collection work quickly and efficiently; it conforms to various positions of the uterus, including anteverted uterus, retroverted uterus, left-tilted uterus, right-tilted uterus, etc., has strong adaptability, can reduce the patient's discomfort, and improve the collection efficiency and collection quality.

[0022] The outer catheter of the present invention is provided with a working plate at the tip end, which can abut against the cervical opening and maintain a stable position. The inner catheter is provided with scale lines, which can guide the doctor to control the depth during the operation. At the same time, the inner catheter is also provided with a sampling head for collecting tissue samples, and the handle and control line can accurately control the operation of the sampling head.

[0023] The sampling head structure of the present invention includes three types: ball-shaped, brush-shaped, and claw-shaped. The corresponding sampling head can be selected according to the operating habits of medical personnel or the required sample collection amount, which is convenient for medical personnel to operate and use. The spherical sampling head is composed of multiple groups of arc rods. The control button changes the shape of each group of arc rods through the control line. The arc rods are fixed by tightening the control line, and the sampling head changes from an elliptical shape to a spherical shape, which can collect more tissue samples and effectively improve the sampling efficiency; the brush-shaped sampling head is composed of a working rod and a brush. The inclination direction of the brush can be adjusted by tightening or releasing the control line, so that more cell samples can be scraped; the claw-shaped sampling head is composed of a central rod and multiple groups of sampling rods. The sampling rod is a multi-section connecting rod structure and the knob at the connecting position is provided with a torsion spring. The multi-section connecting rod structure automatically opens based on the structure of the torsion spring to fit the inner wall of the uterus. The contact layer on the outer surface is a soft structure to avoid scratching the endometrium. The contact layer is provided with multiple groups of grooves for sampling. The control line connects the center position of each group of sampling rods. The opening angle between each group of sampling rods can be controlled by tightening and releasing the control line, which is convenient for medical personnel to collect samples.

[0024] The sampling head of the present invention is provided with a sampling layer and a contact layer on its surface, which can accurately collect tissue samples. The sampling layer is a concave-convex surface structure, which can effectively improve the sampling efficiency; the contact layer is a soft medical material, which can avoid damage to the tissue and reduce the discomfort of the patient.

[0025] The end of the outer catheter of the present invention is provided with multiple groups of slots and uniformly provided with external threads for fixing the position of the inner catheter. The tightening screw button is correspondingly provided with internal threads and adapted to the external threads, and the position of the inner catheter can be accurately controlled. The working plate is elliptical or circular, and can abut against the cervical opening and maintain a stable position during operation. The auxiliary tube is truncated cone-shaped, and the cross section is an arc-shaped inclined structure, which is convenient for penetrating the cervical opening, reducing the patient's discomfort, and can make the inner catheter pass out smoothly, thereby improving the collection efficiency.

[0026] In summary, the present invention has high accuracy and reliability in the collection of endometrial specimens, helps to improve the diagnostic and therapeutic effects, and has broad application prospects.

[0027] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0029] Figure 1This is a schematic diagram of the overall structure of a device for collecting intrauterine microbial samples and endometrial specimens according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of an outer catheter of a device for collecting intrauterine microbial samples and endometrial specimens according to an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of an inner catheter and a spherical sampling head of a device for collecting intrauterine microbial samples and endometrial specimens according to an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of an inner catheter and a brush-shaped sampling head of a device for collecting intrauterine microbial samples and endometrial specimens according to an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of a claw-shaped sampling head of a device for collecting intrauterine microbial samples and endometrial specimens according to an embodiment of the present invention;

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1. Outer catheter, 2. Inner catheter, 3. Handle, 101. Fastening screw, 102. Working plate, 103. Auxiliary tube, 201. Fixing ring, 301. Working groove, 302. Control button, 303. Control line, 4. Spherical sampling head, 401. Arc rod, 5. Brush sampling head, 501. Working rod, 502. Brush, 6. Claw sampling head, 601. Sampling rod, 602. Contact layer, 603. Groove. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1

[0038] like Figure 1-5 Shown

[0039] The device for collecting intrauterine microbial samples and endometrial specimens described in this embodiment includes an outer catheter 1 and an inner catheter 2. The inner catheter 2 is slidably connected to the inner wall of the outer catheter 1. The head end of the outer catheter 1 is provided with a working plate 102 for abutting against the cervical opening. The end of the outer catheter 1 is provided with a tightening button 101 for fixing the position of the inner catheter 2. The inner catheter 2 is provided with a sampling head, and the inner catheter 2 is provided with a handle 3 and a control line 303 for controlling the operation of the sampling head.

[0040] In this embodiment, the head end of the inner catheter 2 is slidably connected to the inner wall of the outer catheter 1, and the end of the inner catheter 2 is fixedly connected to a handle 3. A working groove 301 and a control button 302 are provided on one side of the handle 3. The control button 302 slides in the working groove 301, and the control button 302 is fixedly connected to the control line 303.

[0041] It should be understood that the working plate 102, the auxiliary tube 103 and other components are made of soft medical silicone material, which has a certain elasticity and flexibility, can protect the cervical opening and the endometrium, and prevent damage. The outer wall of the inner catheter 2 is evenly provided with scale lines, which can guide the doctor to control the depth during the operation and adjust the depth according to the detection requirements. In addition, the inner catheter 2 is arc-shaped, has a certain flexibility and elasticity, can adapt to the position of the uterus at different angles, and improve the success rate of collection. The collection device is reasonably designed, simple and easy to learn, and can complete the collection work quickly and efficiently; it conforms to various positions of the uterus, including anteverted uterus, retroverted uterus, left-tilted uterus, right-tilted uterus, etc., has strong adaptability, can reduce the patient's discomfort, and improve the collection efficiency and collection quality.

[0042] In this embodiment, the outer wall of the inner catheter 2 is evenly provided with scale lines, the head end of the inner catheter 2 is the zero scale line, the inner catheter 2 is arc-shaped, and the inner catheter 2 is made of elastic medical material.

[0043] It should be understood that the outer catheter 1 has a working plate 102 at the head end, which can abut against the cervical opening and maintain a stable position. The inner catheter 2 has scale lines to guide the doctor to control the depth during the operation. The inner catheter 2 also has a sampling head for collecting tissue samples, and the handle 3 and the control line 303 can accurately control the operation of the sampling head.

[0044] In this embodiment, the sampling head has three structures: ball-shaped, brush-shaped and claw-shaped.

[0045] In this embodiment, a contact layer 602 is provided on the outer surface of each group of sampling rods 601. The contact layer 602 is made of a soft medical material. A plurality of groups of grooves 603 for collecting scraped samples are evenly provided on the outer surface of the contact layer 602.

[0046] In this embodiment, the end of the outer catheter 1 is provided with multiple groups of slots and uniformly provided with external threads, and the fastening screw button 101 is correspondingly provided with internal threads and adapted to the external threads; the head end of the outer catheter 1 is fixedly connected with a working plate 102.

[0047] In this embodiment, the working plate 102 is elliptical or circular, and is made of soft medical silicone. One end of the working plate 102 is fixedly connected to the outer wall of the outer catheter 1, and the other end of the working plate 102 is provided with an auxiliary tube 103. The auxiliary tube 103 is truncated cone-shaped, and its cross-section is an arc-shaped inclined structure; the end of the auxiliary tube 103 is fixedly connected to the working plate 102, the auxiliary tube 103 is connected to the outer catheter 1, and the head end of the auxiliary tube 103 is provided with an opening for the inner catheter 2 to pass through.

[0048] It should be understood that the end of the outer catheter 1 is provided with multiple groups of slots and uniformly provided with external threads for fixing the position of the inner catheter 2. The tightening screw button 101 is correspondingly provided with internal threads and adapted to the external threads, and can accurately control the position of the inner catheter 2. The working plate 102 is elliptical or circular, and can abut against the cervical opening and maintain a stable position during operation. The auxiliary cylinder 103 is truncated cone-shaped, and the cross-section is an arc-shaped inclined structure, which is convenient for penetrating the cervical opening, reducing the patient's discomfort, and can make the inner catheter 2 pass out smoothly, thereby improving the collection efficiency.

[0049] Example 2

[0050] like Figure 1-5 Shown

[0051] The device for collecting intrauterine microbial samples and endometrial specimens described in this embodiment includes an outer catheter 1 and an inner catheter 2. The inner catheter 2 is slidably connected to the inner wall of the outer catheter 1. The head end of the outer catheter 1 is provided with a working plate 102 for abutting against the cervical opening. The end of the outer catheter 1 is provided with a tightening button 101 for fixing the position of the inner catheter 2. The inner catheter 2 is provided with a sampling head, and the inner catheter 2 is provided with a handle 3 and a control line 303 for controlling the operation of the sampling head.

[0052] In this embodiment, the spherical sampling head 4 includes multiple groups of arc rods 401, and each group of arc rods 401 forms an elliptical or circular structure accordingly; a fixing ring 201 is provided on the inner wall of the head end of the inner catheter 2, and the two ends of each group of arc rods 401 are connected accordingly, the head end of each group of arc rods 401 is fixedly connected to the control line 303, the end of each group of arc rods 401 is slidably connected to the control line 303, the end of each group of arc rods 401 is fixedly connected to the fixing ring 201, the control line 303 slides in the through hole provided in the fixing ring 201, and a sampling layer is provided on the surface of each group of arc rods 401, and the sampling layer is a concave-convex surface structure.

[0053] It should be understood that the spherical sampling head 4 is composed of a plurality of groups of arc-shaped rods 401. The control button 302 is used to change the shape of each group of arc-shaped rods 401 through the control line 303. The arc-shaped rods 401 are fixed by tightening the control line 303, and the sampling head changes from an elliptical shape to a spherical shape, which can collect more tissue samples and effectively improve the sampling efficiency.

[0054] Example 3

[0055] like Figure 1-5 Shown

[0056] The device for collecting intrauterine microbial samples and endometrial specimens described in this embodiment includes an outer catheter 1 and an inner catheter 2. The inner catheter 2 is slidably connected to the inner wall of the outer catheter 1. The head end of the outer catheter 1 is provided with a working plate 102 for abutting against the cervical opening. The end of the outer catheter 1 is provided with a tightening button 101 for fixing the position of the inner catheter 2. The inner catheter 2 is provided with a sampling head, and the inner catheter 2 is provided with a handle 3 and a control line 303 for controlling the operation of the sampling head.

[0057] In this embodiment, the brush-shaped sampling head 5 includes a working rod 501 and a brush 502. The bottom end of the working rod 501 is fixedly connected to the fixed ring 201. The brushes 502 are evenly arranged in multiple groups and connected to the outer wall of the working rod 501. The outer wall of the working rod 501 is evenly provided with through holes for the brushes 502 to pass through. Each group of the brushes 502 is fixedly connected to the control line 303 through the through holes.

[0058] It should be understood that the brush-like sampling head 5 is composed of a working rod 501 and a brush 502 . By tightening or releasing the control line 303 to change the tilt direction of the brush 502 , more cell samples can be scraped.

[0059] Example 4

[0060] like Figure 1-5 Shown

[0061] The device for collecting intrauterine microbial samples and endometrial specimens described in this embodiment includes an outer catheter 1 and an inner catheter 2. The inner catheter 2 is slidably connected to the inner wall of the outer catheter 1. The head end of the outer catheter 1 is provided with a working plate 102 for abutting against the cervical opening. The end of the outer catheter 1 is provided with a tightening button 101 for fixing the position of the inner catheter 2. The inner catheter 2 is provided with a sampling head, and the inner catheter 2 is provided with a handle 3 and a control line 303 for controlling the operation of the sampling head.

[0062] In this embodiment, the claw-shaped sampling head 6 includes a central rod and multiple groups of sampling rods 601. The bottom end of each group of sampling rods 601 is fixedly connected to the fixed ring 201. Each group of sampling rods 601 is a multiple-group connecting rod structure. The connecting rods are connected by a rotating shaft. Each group of rotating shafts is provided with a torsion spring. The force direction of the torsion spring is to make the connecting rod rotate outward based on the center of the fixed ring 201; the central rod is fixedly connected to the top of the fixed ring 201 and is provided with a through hole with the same diameter as the fixed ring 201 for the control line 303 to pass through. The side wall of the central rod is also provided with a through hole for the control line 303 to pass through. The center position of each group of sampling rods 601 is connected to the control line 303.

[0063] It should be understood that the claw-shaped sampling head 6 is composed of a central rod and multiple groups of sampling rods 601. The sampling rods 601 are of a multi-section connecting rod structure and the knob at the connecting position is provided with a torsion spring. The multi-section connecting rod structure automatically opens based on the structure of the torsion spring to fit the inner wall of the uterus. The contact layer 602 on the outer surface is a soft structure to avoid scratching the endometrium. The contact layer 602 is provided with multiple groups of grooves 603 for sampling. The control line 303 connects the center positions of each group of sampling rods 601. The opening angles between each group of sampling rods 601 can be controlled by tightening and releasing the control line 303, which is convenient for medical personnel to collect samples.

[0064] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for collecting intrauterine microbial samples and endometrial specimens, comprising an outer catheter (1) and an inner catheter (2), characterized in that: The inner catheter (2) is slidably connected to the inner wall of the outer catheter (1); the head end of the outer catheter (1) is provided with a working plate (102) for abutting against the cervical opening; the end of the outer catheter (1) is provided with a tightening button (101) for fixing the position of the inner catheter (2); the inner catheter (2) is provided with a sampling head, and the inner catheter (2) is provided with a handle (3) and a control line (303) for controlling the operation of the sampling head.

2. The intrauterine microbial sample and endometrial specimen collection device according to claim 1, characterized in that: The head end of the inner catheter (2) is slidably connected to the inner wall of the outer catheter (1); the end of the inner catheter (2) is fixedly connected to a handle (3); one side of the handle (3) is provided with a working groove (301) and a control button (302); the control button (302) slides in the working groove (301); and the control button (302) is fixedly connected to a control line (303).

3. The intrauterine microbial sample and endometrial specimen collection device according to claim 2, characterized in that: The outer wall of the inner catheter (2) is evenly provided with scale lines, the head end of the inner catheter (2) is located at the zero scale line, the inner catheter (2) is arc-shaped, and the inner catheter (2) is made of elastic medical material.

4. The intrauterine microbial sample and endometrial specimen collection device according to claim 1, characterized in that: The sampling head comprises three specifications, namely, a spherical sampling head (4), a brush-shaped sampling head (5) and a claw-shaped sampling head (6); the spherical sampling head (4) comprises a plurality of groups of arc-shaped rods (401), and each group of arc-shaped rods (401) forms an elliptical or circular structure; a fixing ring (201) is provided on the inner wall of the head end of the inner catheter (2); two ends of each group of arc-shaped rods (401) are connected accordingly; the head end of each group of arc-shaped rods (401) is fixedly connected to a control line (303); the end of each group of arc-shaped rods (401) is slidably connected to the control line (303); the end of each group of arc-shaped rods (401) is fixedly connected to the fixing ring (201); the control line (303) slides in a through hole provided in the fixing ring (201); and a sampling layer is provided on the surface of each group of arc-shaped rods (401); and the sampling layer is a concave-convex surface structure.

5. The intrauterine microbial sample and endometrial specimen collection device according to claim 4, characterized in that: The brush-shaped sampling head (5) comprises a working rod (501) and a brush (502); the bottom end of the working rod (501) is fixedly connected to a fixing ring (201); a plurality of groups of brushes (502) are evenly arranged and connected to the outer wall of the working rod (501); the outer wall of the working rod (501) is evenly provided with through holes for the brushes (502) to pass through; each group of brushes (502) is fixedly connected to a control line (303) via the through holes.

6. The intrauterine microbial sample and endometrial specimen collection device according to claim 4, characterized in that: The claw-shaped sampling head (6) comprises a central rod and a plurality of groups of sampling rods (601), the bottom end of each group of the sampling rods (601) being fixedly connected to the fixing ring (201), and each group of the sampling rods (601) being a plurality of connecting rod structures, each group of connecting rods being connected via a rotating shaft, each group of rotating shafts being provided with a torsion spring, the force exerted by the torsion spring being directed so as to make the connecting rods tilt and rotate outward based on the center of the fixing ring (201); the central rod being fixedly connected to the top of the fixing ring (201) and provided with a through hole having the same diameter as the fixing ring (201) for the control line (303) to pass through, the side wall of the central rod also being provided with a through hole for the control line (303) to pass through, and the center position of each group of the sampling rods (601) being connected to the control line (303).

7. The intrauterine microbial sample and endometrial specimen collection device according to claim 6, characterized in that: The outer surface of each group of sampling rods (601) is provided with a contact layer (602), the contact layer (602) is made of a soft medical material, and the outer surface of the contact layer (602) is evenly provided with a plurality of groups of grooves (603) for collecting scraped samples.

8. The intrauterine microbial sample and endometrial specimen collection device according to claim 1, characterized in that: The end of the outer catheter (1) is provided with a plurality of groups of slots and uniformly provided with external threads, and the tightening screw button (101) is correspondingly provided with internal threads and adapted to the external threads; the head end of the outer catheter (1) is fixedly connected to a working plate (102).

9. The intrauterine microbial sample and endometrial specimen collection device according to claim 8, characterized in that: The working plate (102) is elliptical or circular, and is made of soft medical silicone. One end of the working plate (102) is fixedly connected to the outer wall of the outer catheter (1), and the other end of the working plate (102) is provided with an auxiliary tube (103). The auxiliary tube (103) is truncated cone-shaped, and its cross section is an arc-shaped inclined structure; the end of the auxiliary tube (103) is fixedly connected to the working plate (102), the auxiliary tube (103) is connected to the outer catheter (1), and the head end of the auxiliary tube (103) is provided with an opening for the inner catheter (2) to pass through.

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