CN214966433U

CN214966433U - Hanging strip sewing needle for cervical cerclage under laparoscope after pregnancy

Info

Publication number: CN214966433U
Application number: CN202120197655.8U
Authority: CN
Inventors: 武明娟; 赵绍杰
Original assignee: Wuxi Maternal and Child Health Hospital
Current assignee: Wuxi Maternal and Child Health Hospital
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-12-03
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses a suspender sewing needle for cervical cerclage under a pregnant postcoelioscope, which comprises a suture line body and a sewing needle body connected with one end of the suture line body, wherein the suture line body is an absorbable thread, the sewing needle body comprises a fixed part, a connecting part and a bending part which are connected in sequence, one end of the fixed part close to the suture line body is fixedly connected with the suture line body, and the fixed part, the connecting part and the bending part are integrated into a whole; the fixed part is the setting of sharply following line, and connecting portion are the arc setting, the kink one end of keeping away from connecting portion be the needle point. Through such setting, do benefit to the art person and hold needle inserting position, needle moving direction better to the art person passes the abundant district of uterus isthmus blood vessel with the stitch body smoothly, and the straight line shape setting of fixed part can make the stitch body adapt to the morphological characteristics of cervical antetheca and back wall broad again, and then guarantees that needle inserting and needle moving position are located cervical fascia layer, has reduced and has penetrated the palace chamber, has hindered the risk of embryo.

Description

Hanging strip sewing needle for cervical cerclage under laparoscope after pregnancy

Technical Field

The utility model relates to a medical consumptive material technical field especially relates to a suspender seam needle that is used for cervical cerclage under pregnant back laparoscopic.

Background

The cervical cerclage during pregnancy aims to prevent recurrent late abortion or premature birth caused by cervical insufficiency, and at present, the operation modes of cervical cerclage are divided into a transvaginal modified McDonalds operation mode, a Shirodkar operation mode and a transvaginal cerclage operation mode, wherein the transvaginal cerclage operation mode comprises an open mode and a laparoscopic operation mode. The vaginal cerclage is applied to the middle pregnancy, and is characterized in that no tissue needs to be cut, and only a suture is passed into and out of the wall of a vaginal fornix and surrounds the whole cervix so as to complete cerclage and prevent the cervix from expanding along with the increase of gestational months. The defects are that the cerclage position is low, cervical funnel-shaped changes still exist after most patients operate, meanwhile, the probability of late abortion, premature birth and cervical laceration of the patients is high, and only part of the patients can continuously perform pregnancy until delivery in term. The abdominal ligation is suitable for pre-pregnancy and early pregnancy, and is characterized by mainly comprising: firstly, the operation position is relatively higher and is closer to the isthmus of the uterus, so that the anatomy of the cervix uteri after the operation is closer to that of a normal pregnant woman, and the success rate of the gestation in the full term after the operation is improved; and secondly, cervical cerclage under the laparoscope is a minimally invasive operation, has smaller influence on the internal environment of the pregnant uterus and the pelvic cavity, can accurately judge the position of the needle passing in and out during cerclage, achieves cerclage of the isthmus of the uterus, reduces the damage probability to uterine blood vessels, and ensures that pregnancy is smoothly performed to the maximum extent. Because the cervical cerclage operation through the laparoscope is generally recommended to be carried out in the early pregnancy and in the stable pregnancy state, specifically 8-10 weeks of pregnancy, and no more than 12 weeks of pregnancy at the latest, the cervix of a patient in the period is wide, varicose, rich in blood supply and soft, special attention needs to be paid to protecting the uterine artery and vein blood vessels at the position of the uterine isthmus when carrying out cerclage on the uterine isthmus under the laparoscope, so that the smooth pregnancy is ensured, and meanwhile, other organs in the abdominal cavity are prevented from being damaged. This puts high demands on the needle body of the suture, and the proper needle inserting position and needle moving direction are also the key points for the success of the uterine isthmus cerclage under the laparoscope.

At present, MERSILENE suture lines for surgery are usually selected clinically, the length of the suture line is 40cm, the width of the suture line is 6mm, two ends of the suture line are connected with suture needles, the length of each suture needle is 4.9cm, each suture needle is arranged in a circular arc shape, a needle body is longer, when a laparoscope descends to a uterine isthmus for circular ligation, the suture needles arranged in the circular arc shape enable the needle inserting angle to be difficult to grasp, uterine artery and vein blood vessels are easy to be damaged when the needle is withdrawn, in clinic, an operator often manually adjusts the radian of the suture needles, but the mode is not in line with hospital feeling requirements, on the other hand, the radian of the end portions of the adjusted suture needles is uneven, and the operator can experience a certain test in each operation. In addition, when an operator manually adjusts the suture needle, the needle point of the suture needle can stab the hand of the operator, which causes the pollution of the suture needle; improper needle adjustment methods can also cause the needle body to break. This on the one hand causes harm to the body of the operator and on the other hand also increases the medical consumables.

Chinese patent No. 201720945786.3 discloses "a surgical suture for cervical cerclage under laparoscope", in which the suture needles at both ends of the suture are straight, but through repeated clinical practice, we find that the straight suture needle is more suitable for cervical cerclage before pregnancy, and due to the change of the cervix during pregnancy, the suture needle is not beneficial for the operator to grasp the position of needle insertion and the direction of needle insertion, so that the possibility of blood vessel injury and injury of adjacent organs such as intestinal canal of the patient is higher. In addition, the two-end suture needle is generally designed in such a way that the two uterine isthmus are inserted from front to back and knotted at the back of the uterus, and because the uterine body is enlarged in the pregnancy period and the operable space in the pelvic cavity is limited, the knotted at the back of the uterus is bound to cause the limited operation space, so that the uterus needs to be lifted repeatedly, and the corresponding operation difficulty, threatened abortion or inevitable abortion, and the risks of injury of adjacent organs such as intestinal tracts and blood vessels are increased. When cervical cerclage is performed in pregnancy, the method which is often adopted is to open round ligaments on two sides of the uterus and get through the front and rear leaves of a wide ligament in the uterus, so that an angionic region of the uterine isthmus and an operation space required by an operation are exposed, a needle is inserted from front to back on the left side of the uterine isthmus, a needle is advanced from back to back on the right side of the uterine isthmus, a suture body is tightened and knotted in front of the uterine isthmus, during the operation, the uterine body is subjected to less touch and touch for adjusting the required position of the uterine body, and the risk of threatened abortion and unavoidable abortion after the operation is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a suspender sewing needle that is used for cervical cerclage under pregnant back laparoscopic to solve the problem that present stylolite is unfavorable for the assurance of needle insertion position and needle carrying direction in cervical cerclage under pregnant back laparoscopic.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a suspender sewing needle for cervical cerclage under a laparoscope after pregnancy comprises a suture line body and a sewing needle body connected with one end of the suture line body, wherein the suture line body is a non-absorbable line, the sewing needle body comprises a fixed part, a connecting part and a bent part which are sequentially connected, one end of the fixed part, which is close to the suture line body, is fixedly connected with the suture line body, and the fixed part, the connecting part and the bent part are integrally formed; the fixed part is the setting of sharply following line, and connecting portion are the arc setting, the kink one end of keeping away from connecting portion be the needle point.

Preferably, the kink also is the sharp setting of straight line shape and kink slope setting, and the longitudinal section of kink is circular, and the kink reduces gradually from the one end that is close to connecting portion to the sharp-pointed diameter of needle, and the sharp-pointed cross section of kink needle is the conical.

Preferably, the length of the needle body is 45mm, and the length of the fixing part is 2/3 of the length of the needle body.

Preferably, an angle between a central axis of the bent portion in the length direction and a central axis of the fixing portion in the length direction is α, and α is 18 to 25 °.

Preferably, α is 20 °.

Preferably, the length of the fold is 1/4 the length of the needle body.

Preferably, the suture body is a plain weave thread, the suture body having a width of 5 mm.

Preferably, the length of the suture body is 35 cm.

Preferably, the suture body is fixedly connected with the needle body through a transition section, the diameter of the transition section is gradually reduced from the position close to the suture body to the position close to the needle body, the end, connected with the suture body, of the transition section is consistent with the diameter of the suture body, and the end, connected with the needle body, of the transition section is consistent with the diameter of the needle body.

The utility model discloses the beneficial effect who has does:

(1) the sling sewing needle provided by the utility model is more suitable for laparoscope cervical cerclage operation after pregnancy; the suture line is used for knotting in front of the uterus body after the pregnancy of a patient, so that the operation space is relatively large, the difficulty is reduced, the stimulation to the uterus body is reduced, and the risks of threatened abortion and inevitable abortion after the operation are reduced;

(2) through setting up the needle body into rectilinear fixed part and kink, and connect the curved connecting portion of the two, wherein contained angle between fixed part and the kink is 20, do benefit to the art person and hold the needle position better, the line needle direction, so that the art person avoids the blood vessel with the needle body smoothly, pass the rich district of uterus isthmus blood vessel, and the rectilinear design of fixed part can make the needle body adapt to the morphological characteristics of cervical antetheca and back wall broad again, and then guarantee that needle and line needle position are located cervical fascia layer, reduced when guaranteeing to avoid the rich district of uterus isthmus blood vessel and penetrated the palace chamber, injure and the risk of embryo.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the connection relationship between the needle body and the suture line body according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

A suspender sewing needle for cervical cerclage under a post-pregnancy laparoscope is disclosed, as shown in figures 1 and 2, the suspender sewing needle comprises a suture line body 1 and a sewing needle body 2 connected with one end of the suture line body 1, the suture line body 1 is a non-absorbable line, and the lasting effectiveness of cervical cerclage is ensured by adopting the non-absorbable line. The needle body 2 comprises a fixed part 3, a connecting part 4 and a bent part 5 which are connected in sequence, one end of the fixed part 3 close to the suture body 1 is fixedly connected with the suture body 1, and the fixed part 3, the connecting part 4 and the bent part 5 are integrally formed; the fixing portion 3 is arranged in a linear shape, the connecting portion 4 is arranged in an arc shape, and one end of the bending portion 5, which is far away from the connecting portion 4, is a needle tip.

Alternatively, as shown in fig. 2, the bending portion 5 is also arranged in a straight line shape and the bending portion 5 is arranged in an inclined manner, the longitudinal section of the bending portion 5 is circular, the diameter of the bending portion 5 from the end close to the connecting portion 4 to the needle tip gradually decreases, the diameter of the end of the bending portion 5 connected with the connecting portion 4 is consistent with that of the connecting portion 4, and the cross section of the needle tip of the bending portion 5 is conical. Alternatively, the length of the needle body 2 is 45mm, the length of the fixing portion 3 is 2/3 of the length of the needle body 2, and the longitudinal sections of the fixing portion 3 and the connecting portion 4 are also circular.

Alternatively, as shown in fig. 2, an angle between a central axis of the bent portion 5 in the length direction and a central axis of the fixing portion 3 in the length direction is α, α is 18 to 25 °, and preferably, α is 20 °. The setting of this angle does benefit to the art person and holds needle inserting position, needle moving direction better to the art person passes the abundant district of uterus isthmus blood vessel with stitch body 2 smoothly, and the straight line form setting of fixed part 3 can make stitch body 2 adapt to the morphological characteristics of cervical antetheca and back wall broad again, and then guarantees that needle inserting and needle moving position are located cervical fascia layer, has reduced the risk of penetrating the palace chamber, hindering and the embryo when guaranteeing to avoid the abundant district of uterus isthmus blood vessel.

Alternatively, as shown in fig. 2, the length of the folding portion 5 is 1/4 of the length of the needle body 2, and the length of the connecting portion 4 is 1/12 of the length of the needle body 2.

Optionally, stylolite body 1 is white plain weave line, and the plain weave line is less to the damage of tissue at the needle in-process, and the holistic atress of cervical is more even, cutting force is littleer after stylolite body 1 knots, prevents that stylolite body 1 from causing the local tissue of cervical to tear after the too big pressure of knot back causes. The width of the suture line body 1 is 5mm, and the suture line body 1 with the width of 5mm can reduce the cutting effect of the suture line body 1 on the cervix after the ceruical cerclage on one hand, so that the whole cervix is uniformly stressed; on the other hand, the tightening effect of the knotted suture body 1 on the cervix in the cervical cerclage operation can not be influenced.

Optionally, the length of the suture body 1 is 35cm, when the cervical cerclage operation is performed under a laparoscope, the suture body 1 with the length of 35cm is enough to complete the operation, meanwhile, too much waste is not caused, materials are saved, meanwhile, the operation of suturing by an operator is facilitated, and the suturing efficiency is improved.

Alternatively, as shown in fig. 1 or fig. 2, the suture body 1 and the needle body 2 are fixedly connected through a transition section 6, the diameter of the transition section 6 is gradually reduced from the position close to the suture body 1 to the position close to the needle body 2, one end of the transition section 6 connected with the suture body 1 is consistent with the diameter of the suture body 1, and one end of the transition section 6 connected with the needle body 2 is consistent with the diameter of the needle body 2.

During the use, open two side uterus round ligament at first, get through wide ligament anterior posterior leaflet to expose uterus isthmus vascular area and the required operating space of operation, advance the needle by the back forward on uterus isthmus left side by advancing needle, right side by the back, the stylolite body is tightened up and is tied a knot in the uterus front portion, during bump and touch still less to the uterus body that the required position adjustment of uterus body goes on, reduced the risk that the threatened abortion, the inevitable miscarriage take place to the postoperative.

The above embodiments are not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification of the above embodiments.

Claims

1. The utility model provides a suspender seam needle that is used for cervical cerclage under pregnant posteritoneally which characterized in that: the sling suture needle comprises a suture line body and a suture needle body connected with one end of the suture line body, wherein the suture line body is a non-absorbable thread, the suture needle body comprises a fixed part, a connecting part and a bent part which are sequentially connected, one end of the fixed part, which is close to the suture line body, is fixedly connected with the suture line body, and the fixed part, the connecting part and the bent part are integrally formed; the fixed part is the setting of sharply following line, and connecting portion are the arc setting, the kink one end of keeping away from connecting portion be the needle point.

2. The sling suture needle for postpregnancy laparoscopic cervical cerclage according to claim 1, wherein: the kink also is sharp form setting and kink slope setting, and the longitudinal section of kink is circular, and the kink reduces gradually from the one end that is close to connecting portion to the most advanced diameter of needle, and the most advanced cross section of kink needle is the taper shape.

3. The sling suture needle for postpregnancy laparoscopic cervical cerclage according to claim 1 or 2, wherein: the length of the needle body is 45mm, and the length of the fixing part is 2/3 of the length of the needle body.

4. The sling suture needle for retrogestational laparoscopic cervical cerclage according to claim 2, wherein: the included angle between the central axis of the bending part along the length direction and the central axis of the fixing part along the length direction is alpha, and alpha is 18-25 degrees.

5. The sling suture needle for postpregnancy laparoscopic cervical cerclage according to claim 4, wherein: the alpha is 20 degrees.

6. The sling suture needle for postpregnancy laparoscopic cervical cerclage according to claim 4 or 5, wherein: the length of the bent part is 1/4 of the length of the needle body.

7. The sling suture needle for postpregnancy laparoscopic cervical cerclage according to claim 1, wherein: the suture line body is plain weave line, and the width of suture line body is 5 mm.

8. The sling suture needle for retrogestational laparoscopic cervical cerclage according to claim 7, wherein: the length of the suture body is 35 cm.

9. The sling suture needle for retrogestational laparoscopic cervical cerclage according to claim 7, wherein: through changeover portion fixed connection between stylolite body and the needle body, the changeover portion reduces gradually from being close to the stylolite body to being close to the diameter of needle body, and the changeover portion is unanimous with the diameter of stylolite body with the one end that the stylolite body links to each other, and the changeover portion is unanimous with the diameter of needle body with the one end that the needle body links to each other.