Vagina scissors for trimming tail filaments of contraceptive device

Abstract

The vaginal scissors comprise a first scissor body, a second scissor body, a first scissor handle and a second scissor handle, the first scissor body is fixedly arranged at the front end of the first scissor handle, and the second scissor body is fixedly arranged at the front end of the second scissor handle; the first cutter body and the second cutter body are bent towards the same side, a first cutting edge matched with a tail wire is arranged on the inner side of the first cutter body, and a second cutting edge matched with the first cutting edge and the tail wire is arranged on the inner side of the second cutter body. Sawteeth matched with the first knife body are arranged on a second knife edge of the second knife body, and a positioning groove matched with the second knife body is formed in a first knife edge of the first knife body. The pair of vaginal scissors for trimming the tail filaments of the contraceptive device is ingenious in design, simple in structure and practical in function, and effectively solves the problems that in the prior art, no special vaginal scissors exist when the tail filaments of the contraceptive device are trimmed, straight-head surgical scissors are mostly adopted, and operation in the vagina is inconvenient.

Description

Technical Field

[0001] The invention relates to the field of obstetrics and gynecology medical instruments, in particular to a pair of vaginal scissors for trimming the tail of an IUD. Background Art

[0002] The intrauterine device, also known as the IUD, is a contraceptive device placed in the uterine cavity. It is safe, effective, simple, economical and reversible, and is the main contraceptive measure for women of childbearing age.

[0003] Among them, the IUD with a tail string makes it easier for doctors to operate when removing the IUD, reducing the difficulty and discomfort of removal. In addition, the position of the IUD can be observed through the tail string, and problems such as IUD migration can be detected in a timely manner.

[0004] However, the IUD tail string is usually made of plastic and nylon, which is smooth and hard. A left-in tail string may irritate the cervix, causing cervicitis or other discomfort. In particular, if the tail string is left in for too long, it may cause pain during intercourse and affect the quality of sex life.

[0005] Typically, after inserting an IUD with a tail, the doctor will use surgical scissors to cut the tail under direct vision, leaving about 1 cm outside the cervical os to facilitate subsequent observation and removal. Existing techniques for cutting IUD tails often use straight-tipped surgical scissors, which have the following drawbacks during intravaginal manipulation: 1. The sharp tip can easily damage the vaginal mucosa and cervical tissue; 2. Straight-tipped scissors have difficulty conforming to the angle of the vaginal vault, limiting operation in confined spaces and making it impossible to accurately position the tail; 3. The tail can easily slip during cutting, making it difficult to grasp the tail, leading to repeated cutting and even downward movement of the IUD; 4. There is a lack of adaptability to different uterine inclination angles. Summary of the Invention

[0006] The invention aims to provide a vaginal scissors for trimming the tail of an IUD, so as to solve the problem in the prior art that there are no special vaginal scissors for trimming the tail of an IUD, and straight-headed surgical scissors are mostly used, which is inconvenient to operate in the vagina.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The present invention provides a pair of vaginal scissors for trimming the tail thread of an IUD, comprising a first blade body, a second blade body, a first blade handle, and a second blade handle. The first blade body is fixedly arranged at the front end of the first blade handle, and the second blade body is fixedly arranged at the front end of the second blade handle. The first blade body and the second blade body are bent toward the same side, a first blade blade cooperating with the tail thread is arranged on the inner side of the first blade body, and a second blade blade cooperating with the first blade and the tail thread is arranged on the inner side of the second blade body.

[0009] Furthermore, the bending angles of the first blade and the second blade are between 45° and 135°.

[0010] Furthermore, the second blade edge of the second blade is provided with serrations that cooperate with the first blade.

[0011] Furthermore, the height of the saw teeth is 0.1 mm to 0.3 mm.

[0012] Furthermore, a positioning groove cooperating with the second blade body is provided at the first blade edge of the first blade body.

[0013] Furthermore, the tips of the first blade and the second blade are subjected to spherical passivation treatment.

[0014] Furthermore, the first blade has a concave curvature with a curvature radius of 8 mm to 10 mm, and the second blade has a convex curvature that matches the first blade.

[0015] Furthermore, the first blade and the first handle are an integral structure, and the second blade and the second handle are an integral structure; the first handle and the second handle are hingedly connected via a rotating shaft.

[0016] Furthermore, a limit spring is fixedly arranged between the first knife handle and the second knife handle; and the maximum opening angle between the first blade and the second blade is 15°.

[0017] Furthermore, a first fixing point fixedly connected to the limit spring is provided on the first handle, and a second fixing point fixedly connected to the limit spring is provided on the second handle; a first finger ring is fixedly provided at the end of the first handle, and a second finger ring is fixedly provided at the end of the second handle.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] The vaginal scissors for trimming the tail of the IUD of the present invention can prevent the tail from slipping by providing a positioning groove on the first blade, and providing serrations on the second blade to improve the cutting efficiency, thereby effectively improving the success rate of cutting the tail of the IUD in one go; the tips of the first blade and the second blade of the vaginal scissors for trimming the tail of the IUD of the present invention are spherically blunted, which reduces the incidence of tissue damage; the angle design of the blade of the vaginal scissors for trimming the tail of the IUD of the present invention can achieve shearing without dead angles in the vaginal vault, which is particularly suitable for difficult body positions such as extremely forward and backward tilted uterus, and shortens the average surgical time for placing an intrauterine contraceptive device with a tail. In general, the vaginal scissors for trimming the tail of the IUD of the present invention have an ingenious design, a simple structure, and practical functions, and effectively solve the problem in the prior art that there are no dedicated vaginal scissors for cutting the tail of the IUD, and straight-headed surgical scissors are mostly used, which is inconvenient to operate in the vagina. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 This is a diagram showing the overall structure of the vaginal scissors used for trimming the tail of the IUD of the present invention;

[0022] Figure 2 This is the coordination diagram of the first blade and the second blade (expanded state).

[0023] Explanation of the accompanying symbols: 1. First blade; 101. First blade; 102. Positioning groove; 2. Second blade; 201. Second blade; 202. Serration; 3. First handle; 301. First finger ring; 302. First fixing point; 4. Second handle; 401. Second finger ring; 402. Second fixing point; 5. Limit spring; 6. Rotating shaft. DETAILED DESCRIPTION

[0024] like Figures 1 to 2 As shown, a pair of vaginal scissors for trimming the tail of an IUD comprises a first blade body 1, a second blade body 2, a first handle 3 and a second handle 4. The first blade body 1 is fixedly arranged at the front end of the first handle 3, and the second blade body 2 is fixedly arranged at the front end of the second handle 4.

[0025] The first blade 1 and the first handle 3 are an integral structure, and the second blade 2 and the second handle 4 are an integral structure; the length of the blade part is 5 cm, the bent part is 1.5 cm, and the total length of the handle part and the blade part is 20 cm. The first handle 3 and the second handle 4 are hingedly connected by a rotating shaft 6. The maximum opening angle of the first blade 1 and the second blade 2 is 15°. A limit spring 5 is fixedly arranged between the first handle 3 and the second handle 4. A first fixed point 302 fixedly connected to the limit spring 5 is provided on the first handle 3, and a second fixed point 402 fixedly connected to the limit spring 5 is provided on the second handle 4; a first finger ring 301 is fixedly arranged at the end of the first handle 3, and a second finger ring 401 is fixedly arranged at the end of the second handle 4.

[0026] The first blade 1 and the second blade 2 are bent toward the same side at an angle of 45° to 135°. The blade angle design allows for seamless shearing of the vaginal vault, making it particularly suitable for difficult positions such as extremely anteroposterior tilted uteruses, and shortening the average surgical time for IUD insertion.

[0027] The inner side of the first blade body 1 is provided with a first blade 101 that cooperates with the tail thread, and the inner side of the second blade body 2 is provided with a second blade 101 that cooperates with the first blade 101 and the tail thread. The blade angle is 20-25 degrees.

[0028] The second blade 201 of the second blade body 2 is provided with saw teeth 202 that match the first blade body 1. The height of the saw teeth 202 is 0.1mm to 0.3mm.

[0029] The first blade 1 is provided with a positioning groove 102 at the first blade edge 201, which cooperates with the second blade 2. The first blade 1 has a concave curvature with a curvature radius of 8mm to 10mm, and the second blade 2 is provided with a convex curvature that cooperates with the first blade 1. The first blade 1 has a groove curvature, which makes it easier for the tail thread to slide into the positioning groove 102. The vaginal scissors for trimming the tail thread of the IUD of the present invention can prevent the tail thread from slipping by providing the positioning groove 102 on the first blade 1, and providing the serrations 202 on the second blade 2 can improve the shearing efficiency, thereby effectively improving the success rate of cutting the tail thread of the IUD in one time.

[0030] The tips of the first and second blades (1, 2) are spherically passivated at 2 to 3 mm, with a radius of 0.5 to 1 mm. Double-sided nanocoating (such as diamond-like carbon) reduces the coefficient of friction. The tips of the first and second blades (1, 2) of the vaginal scissors for trimming IUD tails are spherically passivated, reducing the incidence of tissue damage.

[0031] The use process of the present invention is as follows:

[0032] The first step is to disinfect the vulva, vagina and cervix in sequence with iodine or other disinfectants, and lay a sterile drape to ensure the sterility of the surgical area;

[0033] The second step is to place the vaginal speculum to fully expose the cervix and wipe the cervix and vaginal vault with a sterile cotton ball;

[0034] The third step is to gently clamp the anterior lip of the cervix with a cervical forceps and gently pull it to keep the uterus stable for subsequent operations;

[0035] Step 4: Use a hysteroscope to slowly enter the uterine cavity along the cervical canal to measure the depth of the uterine cavity;

[0036] Step 5: Push the IUD with the tail thread to the bottom of the uterine cavity through the placement device. First, fix the placement device in place and slowly withdraw the outer sleeve of the placement device so that the main body of the IUD remains in the uterine cavity. At this time, the tail thread will be clearly exposed from the external cervical opening. Use hemostats or tweezers to gently clamp the exposed tail thread.

[0037] In the sixth step, the vaginal scissors for trimming the IUD tail thread of the present invention are held in the hands, and the first blade 1 and the second blade 2 are unfolded at a distance of about 1 cm from the external cervical os, so that the tail thread falls into the positioning groove 102 on the first blade 101. At this time, the first blade 1 and the second blade 2 are closed by the first blade handle 3 and the second blade handle 4, and the tail thread is cut by the serrations 202 on the second blade 201 cooperating with the positioning groove 102;

[0038] Step 7. After cutting, observe the cervical opening again to confirm that the remaining tail thread is of appropriate length, not obviously exposed or too short, and that the tail thread is not broken or knotted. After disinfecting the cervix and vagina again, remove the vaginal speculum and end the operation.

[0039] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A vaginal scissors for trimming the tail of an IUD, characterized by: The invention comprises a first blade body (1), a second blade body (2), a first handle (3) and a second handle (4), wherein the first blade body (1) is fixedly arranged at the front end of the first handle (3), and the second blade body (2) is fixedly arranged at the front end of the second handle (4); the first blade body (1) and the second blade body (2) are bent toward the same side, a first blade (101) cooperating with a tail thread is provided on the inner side of the first blade body (1), and a second blade (101) cooperating with the first blade (101) and the tail thread is provided on the inner side of the second blade body (2).

2. The vaginal scissors for trimming the IUD tail according to claim 1, characterized in that: The bending angles of the first blade (1) and the second blade (2) are between 45° and 135°.

3. The vaginal scissors for trimming IUD tail threads according to claim 1, characterized in that: The second blade (201) of the second blade (2) is provided with saw teeth (202) that cooperate with the first blade (1).

4. The vaginal scissors for trimming the IUD tail according to claim 3, characterized in that: The height of the saw teeth (202) is 0.1 mm to 0.3 mm.

5. The vaginal scissors for trimming IUD tail threads according to claim 1, characterized in that: A positioning groove (102) is provided on the first blade edge (201) of the first blade body (1) for cooperating with the second blade body (2).

6. The vaginal scissors for trimming IUD tail threads according to claim 1, characterized in that: The tips of the first blade (1) and the second blade (2) are subjected to spherical passivation treatment.

7. The vaginal scissors for trimming IUD tail threads according to claim 1, characterized in that: The first blade (1) has a concave curvature with a curvature radius of 8 mm to 10 mm, and the second blade (2) is provided with a convex curvature matching the first blade (1).

8. The vaginal scissors for trimming IUD tail threads according to claim 1, characterized in that: The first blade (1) and the first handle (3) are an integral structure, and the second blade (2) and the second handle (4) are an integral structure; the first handle (3) and the second handle (4) are hingedly connected via a rotating shaft (6).

9. The vaginal scissors for trimming IUD tail threads according to claim 8, characterized in that: A limit spring (5) is fixedly arranged between the first knife handle (3) and the second knife handle (4); and the maximum opening angle of the first blade (1) and the second blade (2) is 15°.

10. The vaginal scissors for trimming IUD tail threads according to claim 9, characterized in that: The first knife handle (3) is provided with a first fixed point (302) fixedly connected to the limit spring (5), and the second knife handle (4) is provided with a second fixed point (402) fixedly connected to the limit spring (5); a first finger ring (301) is fixedly provided at the end of the first knife handle (3), and a second finger ring (401) is fixedly provided at the end of the second knife handle (4).

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