CN103340680B

CN103340680B - Novel minimally invasive therapy device used for preventing intrauterine adhesion

Info

Publication number: CN103340680B
Application number: CN201310302469.6A
Authority: CN
Inventors: 倪中华; 易红; 顾兴中; 臧波; 巨小龙
Original assignee: Southeast University
Current assignee: Southeast University
Priority date: 2013-07-18
Filing date: 2013-07-18
Publication date: 2015-01-28
Anticipated expiration: 2033-07-18
Also published as: CN103340680A

Abstract

The invention discloses a new type of device for preventing intrauterine adhesion minimally invasive treatment, which includes a film-coated silk-woven mesh separator and a matching inserter, and the film-coated silk-woven mesh separator is loaded on an outer tube after being compressed. It is located in the front end lumen of the middle tube. The film-coated wire braided mesh separator includes a separator and a take-out device. The matching inserter includes an outer tube, a middle tube, a lock nut, a support sleeve, a front sealing ring, a front handle, a tail sealing ring, a locking bolt and a rear handle, and the length of the middle tube is longer than that of the outer tube. The front part of the middle tube is sleeved in the outer tube, and the rear part is exposed outside the outer tube; the rear part of the middle tube passes through the support sleeve, the front end sealing ring, the tail end sealing ring and the locking bolt in sequence . When in use, move the front handle backwards to release the coated silk mesh spacer from the outer tube and return to its original shape. The invention can be used to prevent and treat adhesions in the uterine cavity and cervical canal, and the operation is safer, minimally invasive and simple.

Description

A kind of novel for preventing the device of intrauterine adhesion minimally-invasive treatment

Technical field

The invention belongs to a kind of gynecological instrument for treating uterine cavity synechiac, particularly relating to a kind of novel for preventing the device of intrauterine adhesion minimally-invasive treatment.

Background technology

Intrauterine adhesion is the pathological phenomenon due to the impaired rear forming section of inner membrane of uterine cavity or all adhesions.Intrauterine adhesion can cause lower abdomen pendant pain usually, menstrual blood volume is very few, and serious adhesion can cause amenorrhea.If adhesion enclosure portion uterine cavity, easily miscarry, premature labor, ectopic pregnancy, Intrauterine Fetal Death, Placenta acrreta, placental adherence and infertile.Meanwhile, because cervical canal inflammation and operation on uterus cause wound for cervix uteri, also cervical canal adhesion can be caused.

At present the intrauterine adhesion mode be separated of mainly taking to perform the operation is treated, due to postoperative inner membrane of uterine cavity poor growth, as easy as rolling off a logly cause adhesion again.In order to solve adhesion problems again, the postoperative uterine cavity of main employing inserts intrauterine device (mostly being uterus shape contraceptive ring) at present.But because intrauterine device can not cover uterine cavity wound surface completely, make the postoperative generation poor effect preventing adhesion again, birth control apparatus due to itself material (mostly being copper alloy) hemorrhage, infection in addition, the side effect such as stomachache, lumbago, and easy and uterine cavity wound surface adhesion, need to reappose new intrauterine device, some needs of patients repeat surgeries three to four times.Increase while treatment cost and bring the painful and stress of great physiology to patient, even can cause the serious consequence such as infertile all the life because uterus repeatedly suffers wound.And for cervical canal adhesion, then there is no effective prevention method.

Summary of the invention

Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of novel for preventing the device of intrauterine adhesion minimally-invasive treatment, may be used for prophylactic treatment uterine cavity, cervical canal adhesion, operates safer, Wicresoft, easy.

Technical scheme: for achieving the above object, of the present inventionly provides following technical scheme:

Novel for preventing a device for intrauterine adhesion minimally-invasive treatment, comprise overlay film silk netting shape isolator and supporting inserter; Described overlay film silk netting shape isolator comprises isolator, withdrawing device, described isolator is the netted woven bag structure of the soft material matter possessing shape memory function, the surface of described isolator is covered with one deck medical silica-gel film, and described withdrawing device is arranged on the tail end of isolator; Described supporting inserter comprises outer tube, middle pipe, lock nut, support set, forward end seal circle, front hand grip, tail end sealing circle, clamping screw and back handle; The length of described middle pipe is greater than outer tube, and described middle pipe front part is within the outer tube sheathed, and rear section dew is put outside outer tube, and under original state, the certain distance in the front end of middle pipe is given prominence in the front end of outer tube; The rear section of described middle pipe is successively through support set, forward end seal circle, tail end sealing circle and clamping screw; The external screw thread of described clamping screw is threaded with the rear end of front hand grip, and the two sides, front and back of described tail end sealing circle contact between front hand grip and clamping screw respectively, pipe in locking after tail end sealing circle is squeezed; Be socketed with support set in the front end inner chamber of described front hand grip, sealed by front end sealing ring between described front hand grip and support set, being connected with the rear end of outer tube by lock nut of the front end of described front hand grip; Described back handle is connected with the rear end of middle pipe; Under original state, to be loaded in after described overlay film silk netting shape isolator compression in the front end inner chamber of outer tube and to be arranged in the front side of pipe; During use, move front hand grip backward, make overlay film silk netting shape isolator depart from outer tube and resile.

Described supporting inserter is advanced to the relevant position of uterine cavity, outer tube moves backward, overlay film silk netting shape isolator is made to be trapped in uterine cavity, due to the netted braiding structure that overlay film silk netting shape isolator is the soft material matter possessing shape memory function, be in uterine cavity, overlay film silk netting shape isolator returns to original inverted triangle build shape gradually by compressive state, is expanded by uterine cavity, can the disease of prevention and therapy intrauterine adhesion.

Further, the shape of described isolator is inverted triangle build shape.The shape of described isolator can also be band lower end cylindrical inverted triangle build shape; The inverted triangle body upper end of described isolator 11 caves inward, and described concave face is provided with opening; Inverted triangle body two waist of described isolator 11 is circular arc; The material that described isolator adopts is Nitinol.The shape of isolator is that inverted triangle build shape can prevent intrauterine adhesion, and the shape of isolator is the cylindrical inverted triangle build in band lower end, can also be used for preventing adhesions of cervix.Cave inward in the inverted triangle body upper end of described isolator 11, described concave face is provided with opening, upper end open is then conducive to the eliminating of intrauterine hydrops and inner membrance cast, adopt the opening of circular arc and two waist designs of circular arc, described isolator is avoided to cause damage to endometrium and cervical canal during operation and in taking-up process, adopt Nitinol to be the isolator that material is made, possess good compliance and shape recovery ratio.

Further, described withdrawing device, for reclaiming silk or reclaiming sheath pipe, facilitates the recovery of isolator.

Further, the material of described outer tube and middle pipe is politef, bends position to adapt to different uterus, avoids aligning body of uterus.

Further, the front-end port of described middle pipe is connected with cuts somebody's hair; Under original state, to be loaded in after described overlay film silk netting shape isolator compression in the front end inner chamber of outer tube and to be positioned at the front side of cutting somebody's hair.Pipe in can increasing of cutting somebody's hair pushes effect to overlay film silk netting shape isolator.

Further, described outer tube is provided with scale marker, and its scale originates in the front end of outer tube, ends at outer tube and lock nut junction, can measure the length that supporting inserter enters human uterine chamber, avoids excessively pushing.Described middle pipe is provided with scale marker, and its scale originates in middle pipe and back handle junction, and scale total length is 10cm, can measure the propelling movement distance of pipe in supporting inserter.

Beneficial effect: the invention provides a kind of novel for preventing the device of intrauterine adhesion minimally-invasive treatment, by the structural design of device, and the scale marker on middle pipe and outer tube, move outer tube backward, overlay film silk netting shape isolator is made to be trapped in uterine cavity, expand into uterine cavity shape, reach preventive effect, safety is very high; And apparatus of the present invention structure is simple, easy and simple to handle, only need overlay film silk netting shape isolator to send into uterine cavity once, can preventive effect be reached, and convenient to remove.Significantly reduce the misery of patient and reduce treatment cost.

Accompanying drawing explanation

Accompanying drawing 1 is structural representation of the present invention.

Accompanying drawing 2 is the structural representation of the supporting inserter of the present invention.

Accompanying drawing 3 is the structural representation of inverted triangle build overlay film silk netting shape isolator of the present invention.

Accompanying drawing 4 is the structural representation of band lower end of the present invention cylindrical inverted triangle build overlay film silk netting shape isolator.

Accompanying drawing 5 reclaims silk and isolator connection diagram for the present invention.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention is further described.

As shown in Figure 1, a kind of novel for preventing the device of intrauterine adhesion minimally-invasive treatment, comprise overlay film silk netting shape isolator 10 and supporting inserter 20.

As shown in Figure 3, described overlay film silk netting shape isolator 10 comprises isolator 11, withdrawing device 12, and described isolator 11 is for possessing the netted braiding structure of the soft material matter of shape memory function and possessing good biocompatibility.The network structure of described isolator 11, adopt the combination of different braiding head numbers, string diameter, helical pitch, to reach suitable support force and compliance, there is good compliance and shape recovery ratio, compression outer tube 21 neutralization that is loaded into described supporting inserter 20 can enter in uterine cavity and resile.The width of described isolator 11 upper end inverted triangle body, height and overall dimensions, with reference to uterus anatomic dimensions design.The preferred material that isolator 11 of the present invention adopts is Nitinol, the shape memory function of nickel-titanium alloy material is mainly reflected in: in room temperature 37 DEG C of situations, the sizing of uterine cavity profile is carried out to isolator 11, when isolator 11 enters in human uterine chamber, under body temperature environment, return to original shaping size, reach the object of each wall in completely isolated uterus.Macromolecule polymer material also can realize the effect of similar Nitinol.For avoiding isolator 11 materials to embed new intima, isolator 11 surface is covered with one deck medical silica-gel film.The inverted triangle body upper end of described isolator 11 caves inward, and described concave face is provided with opening, and upper end open is conducive to the eliminating of intrauterine hydrops and inner membrance cast; Upper end open is circular arc and adduction, and inverted triangle body two waist of isolator 11 is circular arc, adopts upper end open and the design of circular arc two waist of circular arc, avoids described isolator 11 to cause damage to endometrium and cervical canal during operation and in taking-up process.Described withdrawing device 12 is arranged on the afterbody opening of inverted triangle body isolator 11, described withdrawing device 12 is for reclaiming silk or reclaiming sheath pipe, as shown in Figure 5, described recovery silk penetrates at interval of a grid or passes the afterbody opening being connected in isolator 10, and described recovery silk 12 is the operation suture thread of nonabsorable.At the end for the treatment of, withdrawing device 12 is adopted to take out overlay film silk netting shape isolator 10.

As shown in Figure 4, the shape of described isolator 11 can also be the cylindrical inverted triangle build in band lower end, than the therapeutic effect not having this cylindrical isolator more than 11 to prevent adhesions of cervix.The determination of the cylindrical diameter in described isolator 11 lower end and length is with reference to the anatomic dimensions of human cervical.

Described supporting inserter 20 comprises outer tube 21, cut somebody's hair 22, middle pipe 23, lock nut 24, support set 25, forward end seal circle 26, front hand grip 27, tail end sealing circle 28, clamping screw 29 and back handle 30; The length of described middle pipe 23 is greater than outer tube 21, and described middle pipe 23 front part is set in outer tube 21, and rear section dew is put outside outer tube 21, and under original state, the certain distance in the front end of middle pipe 23 is given prominence in the front end of outer tube 21;

The rear section of described middle pipe 23 is successively through support set 25, forward end seal circle 26, tail end sealing circle 28 and clamping screw 29; The external screw thread of described clamping screw 29 is threaded with the rear end of front hand grip 27, and the two sides, front and back of described tail end sealing circle 28 contact between front hand grip 27 and clamping screw 29 respectively, pipe 23 in locking after tail end sealing circle 28 is squeezed; Be socketed with support set 25 in the front end inner chamber of described front hand grip 27, sealed between described front hand grip 27 and support set 25 by front end sealing ring 26, the lock nut 24 that passes through of the front end of described front hand grip 27 is connected with the rear end of outer tube 21; Described back handle 30 is connected with the rear end of middle pipe 23; The front-end port of described middle pipe 23 is connected with cuts somebody's hair 22; Under original state, to be loaded in after described overlay film silk netting shape isolator 10 compression in the front end inner chamber of outer tube 21 and be positioned at cut somebody's hair 22 front side.

Under original state, to be loaded in after described overlay film silk netting shape isolator 10 compression in the front end inner chamber of outer tube 21 and to be arranged in the front side of pipe 23; During use, move front hand grip 27 backward, make overlay film silk netting shape isolator 10 depart from outer tube 21 and resile.

Described outer tube 21 is provided with scale marker, and its scale originates in the front end of outer tube 21, ends at outer tube 21 and lock nut 24 junction, can measure the length that supporting inserter 20 enters human uterine chamber, avoid excessively pushing; Described middle pipe 23 is provided with scale marker, and its scale originates in middle pipe 23 and back handle 30 junction, and scale total length is 10cm, can measure the propelling movement distance of pipe 23 in supporting inserter 20.

Described outer tube 21 and the material of middle pipe 23 are politef, to increase described supporting inserter 20 compliance, adapt to different uterus and bend position, avoid aligning body of uterus.Described outer tube 21 and the material of middle pipe 23 can also adopt the other materials that can realize function of the present invention, as rustless steel, polyethylene.

During the work of this device, be loaded into supporting inserter 20 after being compressed by described overlay film silk netting shape isolator 10, in propelling movement, pipe 23 contacts with described overlay film silk netting shape isolator 10, screws clamping screw 29, pipe 23 in locking, making can not relative motion between outer tube 21 and middle pipe 23.Under apparatus of the present invention being identified on outer tube 21 guidance of scale, outer tube 21 is stretched into cavity of uterus.When keeping back handle 30 motionless, unscrew clamping screw 29, slowly move back and send front hand grip 27, in conjunction with the scale marker in the length of described overlay film silk netting shape isolator 10 and middle pipe 23, ensure that described overlay film silk netting shape isolator 10 departs from completely from outer tube 21, and be trapped in uterine cavity, stop moving back sending front hand grip 27, now overlay film silk netting shape isolator 10 returns to original shape, and uterine cavity is expanded, and reaches the object for the treatment of.Now supporting inserter 20 entirety is exited human body.

After effect to be treated reaches, by withdrawing device 12, described overlay film silk netting shape isolator 10 is taken out in cavity of uterus.

The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1. A device for the prevention of minimally invasive treatment of intrauterine adhesions, characterized in that: it comprises a film-coated silk braided mesh isolator (10) and a supporting inserter (20);

The film-coated wire braided mesh isolator (10) includes a spacer (11) and a take-out device (12), and the isolator (11) is a mesh-like braided structure of soft material with a shape memory function. The surface of the isolator (11) is covered with a layer of medical silicone film, and the taking-out device (12) is arranged at the tail end of the isolator (11);

The matching inserter (20) includes an outer tube (21), a push head (22), a middle tube (23), a locking nut (24), a support sleeve (25), a front sealing ring (26), Front handle (27), tail end sealing ring (28), locking bolt (29) and rear handle (30); The length of described middle pipe (23) is greater than outer pipe (21), and described middle pipe ( 23) The front part is sleeved in the outer tube (21), and the rear part is exposed outside the outer tube (21). In the initial state, the front end of the outer tube (21) protrudes a certain distance from the front end of the middle tube (23);

The rear part of the middle tube (23) passes through the support sleeve (25), the front end sealing ring (26), the front handle (27) tail end sealing ring (28) and the locking bolt (29) in sequence; The outer thread of the locking bolt (29) is threadedly connected to the rear end of the front handle (27), and the front and rear sides of the tail end sealing ring (28) contact respectively between the front handle (27) and the locking bolt (29). , the sealing ring (28) at the tail end is squeezed and then locks the middle pipe (23); the front end cavity of the front handle (27) is sleeved with a support sleeve (25), and the front handle (27) and The front end sealing ring (26) seals between the support sleeves (25), and the front end of the front handle (27) is connected to the rear end of the outer tube (21) through a locking nut (24); The handle (30) is connected to the rear end of the middle pipe (23);

In the initial state, the film-coated silk braided mesh separator (10) is compressed and loaded in the front end cavity of the outer tube (21) and is located on the front side of the middle tube (23); when in use, move the front handle backward (27), make the coated silk braided mesh spacer (10) break away from the outer tube (21) and restore the original shape.

2. A device for minimally invasive treatment for preventing intrauterine adhesions according to claim 1, characterized in that: the shape of the spacer (11) is an inverted triangle.

3. A device for minimally invasive treatment for preventing intrauterine adhesions according to claim 1, characterized in that: the shape of the spacer (11) is an inverted triangle with a lower end cylinder.

4. A device for preventing intrauterine adhesion minimally invasive treatment according to claim 2 or 3, characterized in that: the upper end of the inverted triangle of the spacer (11) is sunken inward, and in the sunk Openings are arranged on the surface; the two waists of the inverted triangle of the isolator (11) are arc-shaped.

5. A device for minimally invasive treatment for preventing intrauterine adhesions according to claim 1, characterized in that: the material used for the isolator (11) is nickel-titanium alloy.

6. A device for minimally invasive treatment for preventing intrauterine adhesions according to claim 1, characterized in that: the removal device (12) is a recovery wire or a recovery sheath.

7. A device for minimally invasive treatment for preventing intrauterine adhesions according to claim 1, characterized in that: the outer tube (21) and the middle tube (23) are made of polytetrafluoroethylene.

8. A kind of device for preventing intrauterine adhesion minimally invasive treatment according to claim 1, is characterized in that: the front end port of described middle pipe (23) is connected with pushing head (22); Under initial state, The film-coated silk braided mesh isolator (10) is loaded in the front end lumen of the outer tube (21) after being compressed and is located at the front side of the push head (22).

9. A device for preventing intrauterine adhesion minimally invasive treatment according to claim 1, characterized in that: said outer tube (21) is provided with a scale mark, and its scale starts from the outer tube (21 ) ends at the junction of the outer tube (21) and the lock nut (24).

10. A device for minimally invasive treatment for preventing intrauterine adhesions according to claim 1, characterized in that: the middle tube (23) is provided with a scale mark, and the scale starts from the middle tube (23). ) and the rear handle (30), and the total length of the scale is 10cm.