Intrauterine suturing device

Abstract

The utility model belongs to the technical field of medical instruments, and particularly discloses an intrauterine suturing device which comprises a sleeve and a movable column, the sleeve is of a hollow structure with two open ends, the movable column is detachably arranged in the sleeve, one end of the movable column is provided with a distraction portion, and the distraction portion can protrude out of the opening in one end of the sleeve. According to the scheme, the cervical canal is strutted through the strutting part protruding out of the opening in one end of the sleeve on the movable column, the sleeve conveniently enters the cervical canal and assists in strutting the cervical canal, then the movable column is taken out of the sleeve, the sleeve serves as a channel for an optical endoscope, a water inlet pipeline, a water outlet pipeline and other instruments to enter and exit a uterine cavity, in this way, suture needles and threads can penetrate through the sleeve, and operation is convenient. Therefore, not only is the caliber of the channel increased, but also the cervical canal is prevented from being injured by the optical endoscope, the water inlet pipeline, the water outlet pipeline and other instruments.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an intrauterine suturing device. Background Art

[0002] Mirena is an intrauterine device, which has the same function as ordinary contraceptive rings in that it can prevent pregnancy. The difference is that Mirena is a drug-containing ring, and its longitudinal plastic tube contains 52mg of levonorgestrel. After the Mirena is placed in the uterine cavity, it will slowly release the progestin, levonorgestrel, at a rate of 20μg per day, and can work continuously for 5 years. It can counteract estrogen, inhibit endometrial hyperplasia, thin the endometrium, and significantly reduce the amount and duration of menstrual bleeding, thereby inhibiting endometrial hyperplasia, reducing menstruation, and relieving dysmenorrhea.

[0003] Mirena has many advantages, but it also has certain disadvantages, that is, it is easy to fall off or shift. Like ordinary contraceptive devices, some patients are prone to ring shifting and falling off due to enlarged uterus, deep uterine cavity and loose cervix. However, since Mirena is relatively expensive, once the Mirena is shifted or falls off, it will directly lead to economic losses and affect the clinical treatment effect. Therefore, it is necessary to use new hysteroscopic instruments to complete suturing, knotting and adjusting the position of Mirena in the uterine cavity to fix the Mirena to the uterine muscle wall. The name of this operation is "Mirena intrauterine suturing and fixation".

[0004] However, this operation also has some difficulties. For example, the uterine cavity is narrow and the cervical canal connected to the uterine cavity is even narrower. However, this operation requires the use of an optical laparoscope, water inlet and outlet pipes and other instruments. The narrow cervical canal is difficult to accommodate the above instruments. At present, the tissue is easy to shrink after conventional dilation of the cervical canal, and the cervical canal is easily scratched during the insertion of the suture needle. Therefore, how to make the cervical canal as a channel for the optical laparoscope, water inlet and outlet pipes and other instruments to enter and exit the uterine cavity is a difficulty in implementing this suture operation. Utility Model Content

[0005] In order to overcome the defects of the prior art, the utility model provides an intrauterine suturing device.

[0006] The utility model solves the technical problem by adopting the following technical solution: an intrauterine suturing device, comprising a sleeve and a movable column, wherein the sleeve is a hollow structure with openings at both ends, the movable column is detachably placed inside the sleeve, and one end of the movable column is provided with a support portion, and the support portion can protrude from one end opening of the sleeve.

[0007] As a further solution, the expansion portion is in a semi-spherical or semi-ellipsoidal shape.

[0008] As a further solution, the movable column is clearance-matched with the inner wall of the sleeve, and a chamfer is provided on an edge of an opening at one end of the sleeve close to the opening portion.

[0009] As a further solution, a piston ring is sleeved on one end of the sleeve away from the expansion portion, and the movable column cooperates with the piston ring.

[0010] As a further solution, a handle is provided at one end of the movable column away from the propping portion, and the handle is disc-shaped.

[0011] As a further solution, the length of the sleeve is 70-90 mm, and the outer diameter of the sleeve is 10-13 mm.

[0012] As a further solution, the intrauterine suturing device further comprises a suture needle and thread, and the suture needle and thread can pass through the sleeve.

[0013] As a further solution, the suture needle thread includes a suture needle and a suture thread, one end of the suture thread is connected to the suture needle, and the other end of the suture thread is provided with a loop with a knot.

[0014] As a further solution, barbs are arranged on the outer surface of the suture, and the direction of the barbs is opposite to the direction from the end of the suture far away from the suture needle to the end of the suture close to the suture needle.

[0015] As a further solution, the suture thread includes a suture needle and a suture thread, one end of the suture thread is connected to the suture needle, and barbs are provided on the outer surface of the suture thread, the direction of the barbs on the end of the suture thread close to the suture needle is opposite to the direction from the end of the suture thread away from the suture needle to the end close to the suture needle, and the direction of the barbs on the end of the suture thread away from the suture needle is the same as the direction from the end of the suture thread away from the suture needle to the end close to the suture needle.

[0016] The beneficial effect of the utility model is as follows: the present invention stretches the cervical canal through the opening of the opening at one end of the sleeve protruding from the movable column, so that the sleeve can enter the cervical canal and assist in stretching the cervical canal. After that, the movable column is taken out of the sleeve, so that the sleeve can be used as a passage for the optical laparoscope, water inlet and outlet pipes and other instruments to enter and exit the uterine cavity. In this way, the suture needle and thread can pass through the sleeve and enter the uterine cavity for suturing operations, which not only increases the caliber of the passage, but also prevents the optical laparoscope, water inlet and outlet pipes and other instruments from damaging the cervical canal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of an embodiment of the utility model (I);

[0018] Figure 2 A perspective view (II) of an embodiment of the utility model;

[0019] Figure 3 It is a three-dimensional exploded view of an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the suture needle and thread in the embodiment of the utility model (I);

[0021] Figure 5 for Figure 4 Enlarged view of point A in .

[0022] Figure 6 This is a schematic diagram of the structure of the suture needle and thread in the embodiment of the utility model (II);

[0023] Figure 7 for Figure 6 The enlarged view of point B in the figure;

[0024] Figure 8 for Figure 6 Enlarged view of point C in the figure.

[0025] In the figure, 1-sleeve, 11-rounded corner, 2-movable column, 21-opening part, 3-suture needle and thread, 31-suture needle, 32-suture thread, 321-knot, 322-live ring, 323-barb, 4-piston ring, 5-handle. DETAILED DESCRIPTION

[0026] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] As attached Figures 1 to 8 As shown, an intrauterine suturing device provided in this embodiment includes a sleeve 1 and a movable column 2. The sleeve 1 is a hollow structure with openings at both ends. The sleeve 1 can protect the cervical canal and prevent the optical laparoscope, water inlet and outlet pipelines and other instruments from damaging the cervical canal. The movable column 2 is detachably placed inside the sleeve 1, and one end of the movable column 2 is provided with a spreading portion 21, which can protrude from one end opening of the sleeve 1. The spreading portion 21 is aligned with the cervical canal and can spread the cervical canal, making it easy for the sleeve 1 to enter the cervical canal and spread the cervical canal, so that the sleeve 1 serves as a passage for the optical laparoscope, water inlet and outlet pipelines and other instruments to enter and exit the uterine cavity, so that the suture needle and thread 3 can pass through the sleeve 1 and enter the uterine cavity for suturing operations.

[0028] In this scheme, the cervical canal is expanded by the expansion part 21 of the movable column 2 that protrudes from the opening of one end of the sleeve 1, so that the sleeve 1 can enter the cervical canal and assist in expanding the cervical canal. Then, the movable column 2 is taken out of the sleeve 1, so that the sleeve 1 serves as a channel for the optical laparoscope, water inlet and outlet pipes and other instruments to enter and exit the uterine cavity. In this way, the suture needle and thread 3 can pass through the sleeve 1 and enter the uterine cavity for suturing operations, which not only increases the caliber of the channel, but also prevents the optical laparoscope, water inlet and outlet pipes and other instruments from damaging the cervical canal.

[0029] As a preferred solution, Figure 3 As shown, the expansion portion 21 is in a semi-spherical or semi-elliptical shape, which not only facilitates the expansion portion 21 to expand the cervical canal and reduce the resistance of the cervical canal to the movable column 2, but also reduces damage to the cervical canal.

[0030] As a further improvement, as shown in Attachment 2, the movable column 2 is fitted with the inner wall of the sleeve 1, which can reduce the area of ​​the aspherical surface of the end surface of the sleeve 1, reduce the resistance of the cervical canal to the sleeve 1, and reduce the damage to the cervical canal. The edge of the opening of the sleeve 1 near the expansion portion 21 is provided with a rounded corner 11, which is also convenient for the sleeve 1 to enter the cervical canal and reduce the damage to the cervical canal.

[0031] As attached Figures 1 to 3 As shown, a piston ring 4 is sleeved on one end of the sleeve 1 away from the expansion portion 21, and the movable column 2 cooperates with the piston ring 4. The piston ring 4 can cover the other end opening of the sleeve 1 as an end cover, and cooperates with the movable column 2 to enhance the sealing effect. Of course, the piston ring 4 is detachable and can be removed from the sleeve 1.

[0032] As attached Figure 3 As shown, a handle 5 is provided at one end of the movable column 2 away from the expansion portion 21 . The handle 5 is disc-shaped, which is convenient for the doctor to hold the handle 5 and take the movable column 2 out of the sleeve 1 .

[0033] The length of the sleeve 1 is 70-90 mm, preferably 80 mm, and the outer diameter of the sleeve 1 is 10-13 mm, preferably 11 mm, so that the corresponding instruments can enter the uterine cavity through the sleeve 1.

[0034] In some embodiments, the intrauterine suturing device further comprises a suture needle 3, which can pass through the sleeve 1. Figure 4As shown, the suture needle 3 includes a suture needle 31 and a suture thread 32, one end of the suture thread 32 is connected to the suture needle 31, and the other end of the suture thread 32 is provided with a loop 322 with a knot 321. After the suture needle 31 passes through the second needle of the suture, the suture needle 31 can be passed through the loop 322, so that the loop 322 becomes smaller and smaller, and the tissue of the suture is sutured and fixed at the knot 321, and the suture thread 32 is prevented from being separated from the tissue of the suture. It should be noted that the suture thread 32 is selected as a non-absorbable thread.

[0035] In addition, as a further improvement, as shown in the attached Figure 5 As shown, barbs 323 are provided on the outer surface of the suture 32, and the direction of the barbs 323 is opposite to the direction from the end of the suture 32 away from the suture needle 31 to the end close to the suture needle 31. The direction of the barbs 323 is opposite to the direction from the end of the suture 32 away from the suture needle 31 to the end close to the suture needle 31, which is conducive to the passage of the suture 32 through the tissue at the suture site, and also reduces the opening of the tissue at the suture site to cause the suture 32 to loosen.

[0036] In some embodiments, the intrauterine suturing device further comprises a suture needle 3, which can pass through the sleeve 1. Figure 6 As shown, the suture needle 3 includes a suture needle 31 and a suture thread 32, one end of the suture thread 32 is connected to the suture needle 31, and a barb 323 is provided on the outer surface of the suture thread 32. Figure 7 As shown in FIG. 1 , the direction of the barb 323 at one end of the suture 32 near the suture needle 31 is opposite to the direction from the end of the suture 32 away from the suture needle 31 to the end near the suture needle 31, which is conducive to the suture 32 passing through the tissue at the suture site, while also reducing the opening of the tissue at the suture site and reducing the loosening of the suture 32; as shown in FIG. Figure 8 As shown, the direction of the barb 323 on the end of the suture thread 32 away from the suture needle 31 is the same as the direction from the end of the suture thread 32 away from the suture needle 31 to the end close to the suture needle 31. This is to prevent the tail end of the suture thread 32 from detaching from the tissue at the suture site. The purpose is to replace the above-mentioned knot 321 and loop 322, so that there is no need to tie a knot in the narrow uterine cavity, thereby reducing the difficulty of operation (because the space in the uterine cavity is extremely narrow, and it is difficult to operate the suture needle 31).

[0037] The length of the suture thread 32 is 40-50 mm, which is suitable for the space size in the uterine cavity.

[0038] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An intrauterine suturing device, characterized in that: The invention comprises a sleeve (1) and a movable column (2), wherein the sleeve (1) is a hollow structure with openings at both ends, the movable column (2) is detachably arranged inside the sleeve (1), and one end of the movable column (2) is provided with a support portion (21), and the support portion (21) can protrude from the opening at one end of the sleeve (1).

2. An intrauterine suturing device according to claim 1, characterized in that: The expansion portion (21) is in the shape of a semi-spherical sphere or a semi-elliptical sphere.

3. An intrauterine suturing device according to claim 1 or 2, characterized in that: The movable column (2) is clearance-matched with the inner wall of the sleeve (1), and a chamfered corner (11) is provided at the edge of the opening at one end of the sleeve (1) close to the opening portion (21).

4. An intrauterine suturing device according to claim 1 or 2, characterized in that: A piston ring (4) is sleeved on one end of the sleeve (1) away from the expansion portion (21), and the movable column (2) cooperates with the piston ring (4).

5. An intrauterine suturing device according to claim 1 or 2, characterized in that: A handle (5) is provided at one end of the movable column (2) away from the opening portion (21), and the handle (5) is in the shape of a disc.

6. An intrauterine suturing device according to claim 1, characterized in that: The length of the sleeve (1) is 70-90 mm, and the outer diameter of the sleeve (1) is 10-13 mm.

7. An intrauterine suturing device according to claim 1, characterized in that: The intrauterine suturing device further comprises a suture needle thread (3), and the suture needle thread (3) can pass through the sleeve (1).

8. An intrauterine suturing device according to claim 7, characterized in that: The suture thread (3) comprises a suture needle (31) and a suture thread (32); one end of the suture thread (32) is connected to the suture needle (31), and the other end of the suture thread (32) is provided with a loop (322) with a knot (321).

9. An intrauterine suturing device according to claim 8, characterized in that: Barbs (323) are provided on the outer surface of the suture thread (32), and the direction of the barbs (323) is opposite to the direction from the end of the suture thread (32) away from the suture needle (31) to the end close to the suture needle (31).

10. An intrauterine suturing device according to claim 7, characterized in that: The suture needle thread (3) comprises a suture needle (31) and a suture thread (32); one end of the suture thread (32) is connected to the suture needle (31), and a barb (323) is provided on the outer surface of the suture thread (32); the direction of the barb (323) at the end of the suture thread (32) close to the suture needle (31) is opposite to the direction from the end of the suture thread (32) away from the suture needle (31) to the end close to the suture needle (31); the direction of the barb (323) at the end of the suture thread (32) away from the suture needle (31) is the same as the direction from the end of the suture thread (32) away from the suture needle (31) to the end close to the suture needle (31).

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