Annular cervical canal curettage device

Abstract

The utility model discloses an annular cervical canal curettage device, which comprises a curettage handle and a sleeve, the sleeve is sleeved on the curettage handle and can axially move relative to the curettage handle, the curettage handle comprises an operating end and a leading-in end, and the leading-in end of the curettage handle is provided with a leading-in head; one end of the sleeve is provided with a non-closed elastic annular curettage head, and the elastic annular curettage head is arranged on the curettage handle in a sleeving manner and is attached to the guide-in head; the operating end of the curettage handle drives the leading-in head to abut against the elastic annular curettage head under the action of external tension, so that the elastic annular curettage head is stressed and expanded; and an adjustable locking mechanism is also arranged between the curettage handle and the sleeve. The elastic annular curettage head of the annular cervical canal curettage device can be stretched under stress, can be fully attached to the cervical canal and can gently scrape mucosa tissue cells from the mucosa of the cervical canal, pain and discomfort of a patient are avoided, meanwhile, standardized and normalized operation is facilitated, and operation technicians are easy to train.

Description

Technical Field

[0001] The utility model relates to the technical field of scrapers, in particular to a ring-type cervical canal scraper. Background Art

[0002] As one of the major threats to women's health worldwide, early detection of cervical cancer is crucial to improving treatment success rates and reducing mortality. Endocervical curettage (ECC), as a key diagnostic method, plays an indispensable role in the screening and diagnosis of cervical cancer. ECC directly obtains cell or tissue samples from the endocervical canal, providing an important material basis for pathological examination. Especially when the cervical transformation zone is not obvious or the results of cervical cytology screening are unclear, ECC can reveal early lesions or cancers in the endocervical canal. Studies have shown that ECC can significantly improve the detection rate of cervical lesions, especially in cases of abnormal cytology, HPV16 / 18 infection, and unsatisfactory colposcopy. The additional detection rate of ECC is particularly important. In addition, ECC results are of great clinical significance for guiding subsequent treatment decisions, such as surgery, radiotherapy or chemotherapy.

[0003] At present, the tool used for endocervical curettage is the cervical curette. Although it plays an important role in the early diagnosis of cervical cancer, it is also accompanied by a series of problems and limitations. First, the cervical curette is a ring-shaped scraper made of metal. The material is hard and it is easy to damage the cervix and cause bleeding. The use of the cervical curette may cause pain and discomfort to the patient, especially those who are more sensitive to pain. Secondly, the cervical curette is repeatedly used after disinfection. If the operation is improper or the instrument is not thoroughly disinfected, there is a risk of infection. In addition, the quality and quantity of the samples obtained may be affected by the operation technique, the selection or use of the curette, which in turn affects the accuracy of pathological examination. Due to its fixed and rigid shape, the cervical curette may not be able to reach all areas of the cervical canal, and there is a risk of missing lesions, especially in patients with long cervical canals or special morphologies. In addition, the effectiveness of the use of the cervical curette is highly dependent on the experience and skills of the operator. For inexperienced doctors, it may not be possible to effectively obtain the required samples. Patients may feel anxious or nervous due to their fear of invasive operations, which affects the operation process and results. Finally, for pregnant women, using a hard cervical curette can stimulate uterine contractions and increase the risk of miscarriage or premature birth. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned background technology and to provide a ring-shaped cervical canal scraper, which can complete the sampling operation by inserting the scraper into the cervical canal and applying appropriate pressure to rotate the brush handle. It can quickly, comprehensively and accurately obtain more specimens from the surface of the cervical canal mucosa, thereby improving work efficiency, facilitating standardized and normalized operations, and making it easy to train technical personnel who operate it.

[0005] To achieve the above-mentioned purpose, the utility model provides a ring-type cervical canal scraper, comprising a scraper handle and a sleeve sleeved on the scraper handle and movable relative to the axial direction thereof, wherein the scraper handle has an operating end and an introduction end, and the introduction end of the scraper handle is provided with an introduction head;

[0006] One end of the sleeve is provided with a non-enclosed elastic annular scraping head, and the elastic annular scraping head is sleeved on the scraping handle and arranged in close contact with the introduction head; the operating end of the scraping handle drives the introduction head to press against the elastic annular scraping head under the action of external tension so that it is stretched by the force; an adjustable locking mechanism is also provided between the scraping handle and the sleeve.

[0007] Furthermore, the locking mechanism comprises a plurality of locking teeth arranged on the scraping handle and a locking hole arranged on the sleeve, and the locking hole cooperates with the locking teeth to lock the scraping handle and the sleeve with each other.

[0008] Furthermore, the locking tooth has a protruding pointed portion, and the pointed portion can be inserted into the locking hole and limited therein.

[0009] Furthermore, the elastic annular scraping head comprises a first sleeve and a second sleeve, and a plurality of elastic scraping strips are arranged between the first sleeve and the second sleeve.

[0010] Furthermore, a gap is left between two adjacent elastic scraper strips.

[0011] Furthermore, the cross section of the elastic scraper strip is an arc-shaped structure, the elastic scraper strip has an inner arc surface and an outer arc surface, and the arc length of the inner arc surface is smaller than the arc length of the outer arc surface.

[0012] Furthermore, the introduction head has an arcuate spherical surface and an abutment surface, and the abutment surface of the introduction head is fixed to the introduction end of the scraping handle.

[0013] Furthermore, the size of the abutment surface of the introduction head is larger than the size of the first head and / or the second head of the elastic annular scraping head.

[0014] Furthermore, the elastic annular scraping head is expanded to form an elliptical spherical structure under the action of the pressing force of the introduction head.

[0015] Furthermore, the sleeve is a hollow cylindrical structure, and the length of the sleeve is shorter than the length of the scraping handle.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] First, the annular cervical canal curette of the present utility model is designed with an elastic annular scraping head. The elastic annular scraping head can be expanded by force to form an elliptical spherical scraping head, which can fully fit the elliptical cervical canal and gently scrape mucosal tissue cells from the cervical canal mucosa, avoiding causing pain and discomfort to the patient.

[0018] Second, the annular cervical canal curette of the present utility model is designed with an adjustable locking device. The locking hole of the locking device cooperates with the locking teeth to lock the scraping handle and the sleeve to prevent misoperation of the scraping handle. At the same time, it can fix the elastic annular scraping head to expand into a 360° elliptical spherical scraping head with different diameters.

[0019] Third, since the elastic annular scraping head of the annular cervical canal curette of the present utility model can form a 360° elliptical spherical annular scraping surface that completely fits the surface of the cervical canal mucosa, it can touch all areas of the cervical canal. As long as the cervical canal curette is inserted into the cervical canal and the brush handle is rotated with appropriate pressure, the sampling operation can be completed. It can quickly, comprehensively and accurately obtain more specimens on the surface of the cervical canal mucosa, improve work efficiency, and is convenient for standardized and normalized operations, and is easy to train the operating technicians. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of an annular cervical canal curette;

[0021] Figure 2 is Figure 1 a schematic structural diagram of the annular cervical canal curette shown in FIG. when the elastic annular scraping head is expanded;

[0022] Figure 3 is a schematic structural diagram of the scraping handle;

[0023] Figure 4 is a schematic connection structure diagram of the elastic annular scraping head and the sleeve;

[0024] Figure 5 is a schematic connection structure diagram of the elastic annular scraping head and the sleeve when the elastic annular scraping head is expanded;

[0025] Figure 6 is a schematic structural diagram of the locking mechanism;

[0026] Figure 7 is a schematic structural diagram of the elastic annular scraping head;

[0027] Figure 8 is Figure 7 a schematic structural diagram along the A-A direction in FIG.

[0028] Fig. 9 is a schematic structural diagram of the elastic annular scraping head when it is expanded;

[0029] Fig.10 is Fig. 9 a schematic structural view along the B-B direction in

[0030] Fig.11 a schematic structural view of a ring-shaped cervical canal curette inserted into the cervical canal;

[0031] Fig.12 a schematic structural view of the elastic annular scraping head of a ring-shaped cervical canal curette when it is expanded after being inserted into the cervical canal;

[0032] In the figure: scraping handle 1, operating end 11, introducing end 12, introducing head 13, arc spherical surface 131, abutting surface 132, sleeve 2, elastic annular scraping head 3, first socket 31, second socket 32, elastic scraping strip 33, inner arc surface 331, outer arc surface 332, gap 34, locking mechanism 4, locking teeth 41, pointed head part 411, locking hole 42, uterus 5, cervical canal 6, vagina 7. Specific embodiments

[0033] The following will describe in detail the implementation of the present utility model in combination with implementation cases, but they do not constitute a limitation to the present utility model and are only for examples. At the same time, the advantages of the present utility model will become clearer and easier to understand by description.

[0034] Such as Figure 1 and Figure 2 shown, a ring-shaped cervical canal curette includes a scraping handle 1 and a sleeve 2 sleeved on the scraping handle 1 and axially movable relative to it. The sleeve 2 is a hollow cylindrical structure, and the length of the sleeve 2 is less than the length of the scraping handle 1.

[0035] Such as Figure 3 shown, the scraping handle 1 has an operating end 11 and an introducing end 12, and an introducing head 13 is provided at the introducing end 12 of the scraping handle 1. The introducing head 13 has an arc spherical surface 131 and an abutting surface 132, and the abutting surface 132 of the introducing head 13 is fixed to the introducing end 12 of the scraping handle 1. The size of the abutting surface 132 of the introducing head 13 is larger than the size of the first socket 31 and / or the second socket 32 of the elastic annular scraping head 3. The introducing head 13 performs axial limit on the elastic annular scraping head 3, which can prevent the elastic annular scraping head from slipping out of the scraping handle.

[0036] Such as Figure 4 and Figure 5As shown in the figure, one end of the sleeve 2 is provided with an elastic annular scraping head 3 with a non-closed enclosure. The elastic annular scraping head 3 is sleeved on the scraping handle 1 and arranged in contact with the guiding head 13. The operating end 11 of the scraping handle 1 drives the guiding head 13 to press against the elastic annular scraping head 3 under the action of an external pulling force, so that the elastic annular scraping head 3 is forced to expand. The elastic annular scraping head 3 forms an elliptical spherical structure under the action of the pressing force of the guiding head 13. An adjustable locking mechanism 4 is also arranged between the scraping handle 1 and the sleeve 2. After the locking device is locked, the elastic annular scraping head can be expanded into a 360° elliptical spherical scraping head with different diameters, which can fully fit the elliptical cervical canal and gently scrape the mucosal tissue cells from the cervical canal mucosa.

[0037] As Figure 1 and Figure 6 shown in the figure, the locking mechanism 4 includes a plurality of locking teeth 41 arranged on the scraping handle 1 and a locking hole 42 arranged on the sleeve 2. The locking hole 42 cooperates with the locking teeth 41 to lock the scraping handle 1 and the sleeve 2 to each other. The locking tooth 41 has a protruding pointed head 411, and the pointed head 411 can be inserted into the locking hole 42 for limiting. During operation, pull out the operating end 11 of the scraping handle 1 and push the end of the sleeve, and the locking teeth 41 on the scraping handle 1 can be fixed in the locking hole 42. According to actual needs, the locking teeth 41 at different positions on the scraping handle 1 can be locked with the locking hole 42. The locking hole 42 and the locking teeth 41 are used to lock the scraping handle 1 to prevent misoperation of the scraping handle, and at the same time, the annular scraping head can be fixed to expand into a 360° elliptical spherical scraping head with different diameters.

[0038] As Figure 7 to Figure 10 shown in the figure, the elastic annular scraping head 3 includes a first sleeve 31 and a second sleeve 32. A plurality of elastic scraping strips 33 are arranged between the first sleeve 31 and the second sleeve 32. A gap 34 is left between two adjacent elastic scraping strips 33. The cross-section of the elastic scraping strip 33 is in an arc structure. The elastic scraping strip 33 has an inner arc surface 331 and an outer arc surface 332, and the arc length of the inner arc surface 331 is less than the arc length of the outer arc surface 332.

[0039] The using method of the annular cervical canal scraper of the present utility model includes the following steps:

[0040] When sampling the cervix, first hold the scraping handle 1 and insert the expandable part of the elastic annular scraping head 3 of the device into the cervical canal 6, push the locking mechanism, adjust the expansion diameter of the elastic annular scraping head 3 so that the outer side fully fits the cervical canal wall, rotate the scraping handle 1 with moderate force, operate the scraping handle to rotate 3 to 5 circles in the clockwise direction, then release the locking mechanism of the scraping handle 1, shrink the elastic annular scraping head 3 to make it detach from the cervical canal, and the operator can easily put the elastic annular scraping head 3 into a vial containing a preservation solution, and the sampling is completed. Since the elastic annular scraping head 3 can form a 360° elliptical spherical annular scraping surface that is completely consistent with the surface of the cervical canal mucosa, the sampling operation can be completed by inserting the cervical canal scraper into the cervical canal and applying appropriate pressure to rotate the brush handle, which can quickly, comprehensively and accurately obtain more specimens on the surface of the cervical canal mucosa, improve work efficiency, and facilitate standardized and normalized operations, and easy to train technical personnel for operation.

[0041] The above are only specific implementation methods of the present invention. It should be pointed out that any changes or substitutions that can be easily thought of by technicians familiar with the field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention, and the rest not described in detail are prior art.

Claims

1. A ring-type cervical canal scraper, characterized in that: The invention comprises a scraping handle (1) and a sleeve (2) which is sleeved on the scraping handle (1) and can move axially relative to the scraping handle (1), wherein the scraping handle (1) has an operating end (11) and an introduction end (12), and the introduction end (12) of the scraping handle (1) is provided with an introduction head (13); A non-enclosed elastic annular scraping head (3) is arranged at one end of the sleeve (2); the elastic annular scraping head (3) is sleeved on the scraping handle (1) and is arranged in close contact with the introduction head (13); the operating end (11) of the scraping handle (1) drives the introduction head (13) to press against the elastic annular scraping head (3) under the action of external tension, so that the elastic annular scraping head (3) is expanded; an adjustable locking mechanism (4) is also arranged between the scraping handle (1) and the sleeve (2).

2. The ring-type endocervical canal scraper according to claim 1, characterized in that: The locking mechanism (4) comprises a plurality of locking latch teeth (41) arranged on the scraping handle (1) and a locking latch hole (42) arranged on the sleeve (2); the locking latch hole (42) cooperates with the locking latch teeth (41) to lock the scraping handle (1) and the sleeve (2) with each other.

3. The ring-type endocervical canal scraper according to claim 2, characterized in that: The locking latch tooth (41) has a protruding pointed portion (411), and the pointed portion (411) can be inserted into the locking latch hole (42) and limited thereto.

4. The ring-type endocervical canal scraper according to claim 1, 2 or 3, characterized in that: The elastic annular scraping head (3) comprises a first sleeve (31) and a second sleeve (32), and a plurality of elastic scraping strips (33) are arranged between the first sleeve (31) and the second sleeve (32).

5. The ring-type cervical canal scraper according to claim 4, characterized in that: A gap (34) is left between two adjacent elastic scraper strips (33).

6. The ring-type cervical canal scraper according to claim 5, characterized in that: The cross section of the elastic scraper (33) is an arc-shaped structure. The elastic scraper (33) has an inner arc surface (331) and an outer arc surface (332). The arc length of the inner arc surface (331) is smaller than the arc length of the outer arc surface (332).

7. The ring-type cervical canal scraper according to claim 6, characterized in that: The introduction head (13) has an arcuate spherical surface (131) and an abutment surface (132); the abutment surface (132) of the introduction head (13) is fixed to the introduction end (12) of the scraping handle (1).

8. The ring-type endocervical canal scraper according to claim 7, characterized in that: The size of the abutment surface (132) of the introduction head (13) is larger than the size of the first sleeve (31) and / or the second sleeve (32) of the elastic annular scraping head (3).

9. The ring-type endocervical canal scraper according to claim 1, 2 or 3, characterized in that: The elastic annular scraping head (3) is expanded by the pressing force of the introduction head (13) to form an elliptical spherical structure.

10. The ring-type endocervical canal scraper according to claim 1, 2 or 3, characterized in that: The sleeve (2) is a hollow cylindrical structure, and the length of the sleeve (2) is smaller than the length of the scraping handle (1).

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