Intrauterine suturing deviceTechnical Field
The utility model relates to the technical field of medical appliances, in particular to an intrauterine suturing device.
Background
Manyue ring is an intrauterine device and has the common characteristic of contraception with common contraceptive rings. The difference is that the Manyue ring is a medicated ring, and the longitudinal plastic tube contains 52mg of levonorgestrel. After the Manyuele ring is placed in the uterine cavity, it can slowly release progestogen-levonorgestrel at 20 mug per day, and can continuously work for 5 years. It can resist estrogen, inhibit endometrial hyperplasia, thin endometrium, obviously reduce menstrual bleeding amount and bleeding time, and achieve the effects of inhibiting endometrial hyperplasia, reducing menstruation and relieving dysmenorrhea.
Manyue rings offer many benefits, but suffer from the disadvantage of being prone to flaking or dislodging. As with the common contraceptive device, part of patients are easy to have ring shift and fall off due to uterus enlargement, deep uterine cavity and loose uterine opening, however, because the Manyue ring is relatively expensive, once the Manyue ring is shifted and falls off, the part of economic loss is directly caused, and the clinical treatment effect is affected, therefore, the Manyue ring is fixed on the uterine muscle wall by suturing, knotting and adjusting the position of the Manyue ring in the uterine cavity through a novel hysteroscope instrument, and the operation name is Manyue ring intrauterine suture fixation.
However, there are some difficulties in this operation, such as the narrow uterine cavity, the narrow cervical canal communicating with the uterine cavity, but this operation needs to use an optical endoscope, water inlet and outlet pipelines, other instruments, etc., the narrow cervical canal is difficult to accommodate the above instruments, and the tissue is easy to retract after the cervical canal is conventionally dilated, and the cervical canal is easy to be scratched during the process of delivering the suture needle, so how to use the cervical canal as a passage for the optical endoscope, the water inlet and outlet pipelines, and other instruments to enter and exit the uterine cavity is a difficulty in implementing this suture operation.
Disclosure of utility model
In order to overcome the defects in the prior art, the utility model provides an intrauterine suturing device.
The intrauterine suturing device comprises a sleeve and a movable column, wherein 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 spreading part, and the spreading part can protrude out of one end of the sleeve to form an opening.
As a further aspect, the spreading portion is hemispherical or semi-elliptical.
As a further scheme, clearance fit is provided between the movable column and the inner wall of the sleeve, and the edge of the sleeve, which is close to the opening at one end of the opening part, is provided with a rounding angle.
As a further scheme, one end of the sleeve pipe far away from the opening part is sleeved with a piston ring, and the movable column is matched with the piston ring.
As a further scheme, the movable column is far away from one end of the opening part and is provided with a handle, and the handle is disc-shaped.
As a further scheme, the length of the sleeve is 70-90 mm, and the outer diameter of the sleeve is 10-13 mm.
As a further aspect, the intrauterine suturing device further comprises a suturing needle thread, which can pass through the cannula.
As a further scheme, the suture needle and line comprises a suture needle and a suture line, one end of the suture line is connected with the suture needle, and the other end of the suture line is provided with a living ring with a knot.
As a further proposal, the outer surface of the suture is provided with barbs, and the orientation of the barbs is opposite to the direction from the end of the suture away from the suture needle to the end close to the suture needle.
As a further scheme, the suture needle line comprises a suture needle and a suture line, one end of the suture line is connected with the suture needle, barbs are arranged on the outer surface of the suture line, the direction of the barbs on the suture line, which are close to one end of the suture line, is opposite to the direction from one end of the suture line, which is far away from the suture needle, to one end, which is close to the suture needle, of the suture line, and the direction of the barbs on the suture line, which is far away from one end of the suture line, is the same as the direction from one end, which is far away from the suture needle, to one end, which is close to the suture needle, of the suture line.
The utility model has the beneficial effects that the cervical canal is propped open by the propping open part protruding out of one end of the sleeve on the movable column, so that the sleeve can conveniently enter the cervical canal and assist in propping open the cervical canal, and then the movable column is taken out of the sleeve, so that the sleeve can be used as a passage for an optical endoscope, a water inlet and outlet pipeline and other instruments to enter and exit the uterine cavity, and thus, a suture needle can pass through the sleeve and enter the uterine cavity to carry out suture operation, thereby not only increasing the caliber of the passage, but also avoiding the optical endoscope, the water inlet and outlet pipeline and other instruments from damaging the cervical canal.
Drawings
FIG. 1 is a perspective view (I) of an embodiment of the present utility model;
FIG. 2 is a perspective view (II) of an embodiment of the present utility model;
FIG. 3 is a perspective exploded view of an embodiment of the present utility model;
FIG. 4 is a schematic view of a suture needle and thread structure according to an embodiment of the present utility model;
fig. 5 is an enlarged view at a in fig. 4.
FIG. 6 is a schematic diagram of a suture needle and thread structure according to an embodiment of the present utility model;
FIG. 7 is an enlarged view at B in FIG. 6;
Fig. 8 is an enlarged view at C in fig. 6.
In the figure, 1-sleeve, 11-rounded corners, 2-movable posts, 21-spreading parts, 3-suture needles, 31-suture needles, 32-suture lines, 321-knots, 322-movable rings, 323-barbs, 4-piston rings and 5-handles.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1-8, the intrauterine suturing device provided in this embodiment includes a sleeve 1 and a movable column 2, wherein the sleeve 1 is a hollow structure with two open ends, and the sleeve 1 can play a role in protecting a cervical canal, and avoid damage to the cervical canal by an optical endoscope, water inlet and outlet pipelines and other instruments. The movable column 2 is detachably arranged in the sleeve 1, one end of the movable column 2 is provided with a spreading part 21, the spreading part 21 can protrude out of one end opening of the sleeve 1, the spreading part 21 is aligned with a cervical canal and can spread the cervical canal, the sleeve 1 can conveniently enter the cervical canal and spread the cervical canal, the sleeve 1 can be used as an optical endoscope, a water inlet and outlet pipeline and channels for other instruments to enter and exit the uterine cavity, and thus the suture needle and line 3 can pass through the sleeve 1 and enter the uterine cavity to carry out suture operation.
According to the technical scheme, the cervical canal is spread through the spreading part 21 protruding out of one end of the sleeve 1 on the movable column 2, the sleeve 1 is convenient to enter the cervical canal and spread the cervical canal in an auxiliary mode, then the movable column 2 is taken out of the sleeve 1, the sleeve 1 is used as an optical endoscope, a water inlet pipeline, a water outlet pipeline and channels for other instruments to enter and exit the uterine cavity, and the suture needle 3 can penetrate through the sleeve 1 to enter the uterine cavity for suture operation, so that the caliber of the channels is increased, and meanwhile the optical endoscope, the water inlet pipeline, the water outlet pipeline and the other instruments are prevented from damaging the cervical canal.
As shown in fig. 3, the opening part 21 is preferably in a semicircular sphere or a semi-elliptical sphere, so that the opening part 21 is convenient for opening the cervical canal, the resistance of the cervical canal to the movable column 2 is reduced, and the damage to the cervical canal is reduced.
As a further improvement, as shown in the attached figure 2, the movable column 2 is in clearance fit with the inner wall of the sleeve 1, so that the aspheric surface area of the end face of the sleeve 1 can be reduced, the resistance of the cervical canal to the sleeve 1 can be reduced, and the damage to the cervical canal can be reduced. The edge of the opening of the sleeve 1 near the opening part 21 is provided with a rounding angle 11, which is convenient for the sleeve 1 to enter the cervical canal and reduces the damage to the cervical canal.
As shown in fig. 1-3, a piston ring 4 is sleeved at one end of the sleeve 1 away from the opening part 21, and the movable column 2 is matched with the piston ring 4. The piston ring 4 can cover the opening at the other end of the sleeve 1 as an end cover, and is matched with the movable column 2 to strengthen the sealing effect. Of course, the piston ring 4 is detachable from the sleeve 1.
As shown in fig. 3, a handle 5 is arranged at one end of the movable column 2 far away from the opening part 21, and the handle 5 is disc-shaped, so that a doctor can hold the handle 5 conveniently and take out the movable column 2 outside the sleeve 1.
The length of the sleeve 1 is 70-90 mm, preferably 80mm, and the outer diameter of the sleeve 1 is 10-13 mm, preferably 11mm, so that corresponding instruments can conveniently enter the uterine cavity through the sleeve 1.
In some embodiments, the intrauterine device further comprises a suture needle 3, the suture needle 3 being insertable through the cannula 1. As shown in fig. 4, the suture needle and line 3 includes a suture needle 31 and a suture 32, one end of the suture 32 is connected to the suture needle 31, and the other end of the suture 32 is provided with a loop 322 with a knot 321. After the suture needle 31 passes through the second needle for the suture position, the suture needle 31 can pass through the movable ring 322, so that the movable ring 322 is smaller and smaller, the tissue at the suture position is sutured and fixed at the buckling point 321, and the suture 32 is prevented from being separated from the tissue at the suture position instead of manually knotting. The suture 32 is selected to be a non-absorbable thread.
In addition, as a further improvement, as shown in fig. 5, the outer surface of the suture thread 32 is provided with a barb 323, the direction of the barb 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, the suture thread 32 is beneficial to penetrate through tissues at the suture part, and the tissue opening at the suture part is reduced, so that the suture thread 32 is loosened.
In some embodiments, the intrauterine device further comprises a suture needle 3, the suture needle 3 can pass through the sleeve 1, as shown in fig. 6, the suture needle 3 comprises a suture needle 31 and a suture 32, one end of the suture 32 is connected with the suture needle 31, the outer surface of the suture 32 is provided with a barb 323, as shown in fig. 7, the direction of the barb 323 at the end of the suture 32 close to the suture needle 31 is opposite to the direction from the end of the suture 32 far away from the suture needle 31 to the end close to the suture needle 31, which is beneficial to the tissue penetration of the suture 32 at the suture site, and reduces the tissue opening at the suture site, and reduces the loosening of the suture 32, as shown in fig. 8, the direction of the barb 323 at the end of the suture 32 far away from the suture needle 31 is the same as the direction from the end of the suture 32 far away from the suture needle 31, so as to avoid the tail end of the suture 32 from the tissue at the suture site, and the purpose of replacing the knot 321 and the living ring 322, which are not used in the narrow lumen, thus reducing the operation difficulty (because the space in the uterine cavity is extremely narrow, and the suture needle 31 is operated greatly).
The length of the suture line 32 is 40-50 mm, and the suture line is suitable for the size of the space in the uterine cavity.
The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.