阅读说明：本技术 一种妇科快速调节型扩宫装置 (Quick adjustment type of gynaecology expands palace device ) 是由 申兵涛 于 2021-07-16 设计创作，主要内容包括：本发明公开了一种妇科快速调节型扩宫装置,属于医疗器械领域。该装置包括：壳体；扩宫器,扩宫器为若干个,若干扩宫器呈环形布置；扩宫器包括扩张片和驱动装置,驱动装置设置在壳体上,扩张片可滑动地设置在壳体内；扩张片的横截面呈弧形结构,当扩张片相互靠紧时,若干扩张片构成一直径为A的筒状结构,当扩张片相互远离时,相邻的两个扩张片之间形成一间隙,若干扩张片形成一直径为B的筒状结构,且直径B的值大于直径A的值。本发明利用扩张片之间的相互靠拢或远离,来实现若干扩张片所形成的支撑空间的直径的变化；避免了多次更换扩更棒带来的一系列问题,大大简化了手术操作流程,降低了感染风险。(The invention discloses a gynecological quick adjustment type uterine dilator, and belongs to the field of medical instruments. The device includes: a housing; the uterine dilators are arranged in a ring shape; the uterine dilator comprises an expansion sheet and a driving device, the driving device is arranged on the shell, and the expansion sheet is slidably arranged in the shell; the cross section of each expansion piece is of an arc-shaped structure, when the expansion pieces are close to each other, the expansion pieces form a cylindrical structure with the diameter of A, when the expansion pieces are far away from each other, a gap is formed between every two adjacent expansion pieces, the expansion pieces form a cylindrical structure with the diameter of B, and the value of the diameter of B is larger than that of A. The diameter of the supporting space formed by the expansion pieces is changed by utilizing the mutual approaching or separating of the expansion pieces; a series of problems caused by replacing the expanding rod for many times are avoided, the operation flow is greatly simplified, and the infection risk is reduced.)

1. The utility model provides a gynaecology's quick adjustment type expands palace device which characterized in that includes:

a housing;

the uterine dilators are arranged in a ring shape; the uterus dilator comprises an expansion piece and a driving device, the driving device is arranged on the shell, the expansion piece is slidably arranged in the shell, and the driving device is used for driving the expansion piece to be away from or close to each other; the cross section of expansion piece is the arc structure, works as when the expansion piece leans on each other tightly, and a plurality of the expansion piece constitutes a tubular structure that the diameter is A, works as when the expansion piece is kept away from each other, forms a clearance between two adjacent expansion pieces, and a plurality of the expansion piece forms a tubular structure that the diameter is B, just diameter B's value is greater than diameter A's value.

2. The gynecological rapid-adjustment type uterine dilator device according to claim 1, wherein the housing is a rotating disc, the rotating disc is a circular disc-shaped structure, and a first abdicating hole is formed in the center of the rotating disc; the turntable is provided with a plurality of adjusting sliding holes, the extending tracks of the adjusting sliding holes are of arc structures, and the adjusting sliding holes are uniformly distributed along the central circumference of the turntable; the peripheral side wall of the outer ring of the turntable extends towards one side to form an L-shaped edge;

the driving device comprises a fixed disc, a plurality of rotating blocks and a sliding bolt, the fixed disc is of a disc-shaped structure matched with the rotating disc, and the fixed disc is rotatably arranged in the wrapping edge; a second abdicating hole is formed in the center of the fixed disc, the diameters of the first abdicating hole and the second abdicating hole are the same, and a fixing device for fixing the fixed disc to the bed body is arranged on the fixed disc; the fixed disk is provided with a plurality of guide grooves which are uniformly distributed along the central circumferential direction of the fixed disk;

the rotating blocks are roughly in a triangular structure, the rotating blocks are uniformly arranged along the central circumference of the rotating disc, the expansion pieces, the rotating blocks and the sliding bolts are in one-to-one correspondence, the expansion pieces are arranged on the rotating blocks, guide strips are arranged on the rotating blocks, positioning holes are formed in the rotating blocks, the guide strips are slidably arranged in the guide grooves, and the sliding bolts penetrate through the adjusting sliding holes and are arranged in the positioning holes; the rotating block is slidably arranged between the turntable and the fixed disk;

when the turntable rotates, the rotating block is driven to move by the sliding bolt; the rotating blocks are far away from or close to each other when moving, and a hole-shaped structure is formed in the center of the turntable.

3. The gynecological quick adjustment type uterine dilator device of claim 1, wherein the dilating plates are rotatably disposed on the rotating block.

4. The gynecological quick-adjustment type uterine dilator device according to any one of claims 1 to 3, wherein an end of the dilating plate away from the rotating block extends in an arc shape.

5. The gynecological quick adjustment type uterine dilator device of claim 4, wherein the inside of the covered edge is provided with a first sliding tooth, the periphery of the fixing plate is provided with a second sliding tooth, and the first sliding tooth is matched with the second sliding tooth.

Technical Field

The invention relates to the field of medical instruments, in particular to a gynecological quick adjustment type uterine dilator.

Background

Uterine curettage, which is the most commonly used method for early stage artificial abortion, is a uterine curettage operation. The procedure is generally performed in two steps, the first step being to dilate the cervix to a sufficient size and the second step being to reach the uterine cavity with a curette and to scrape the embryo off. The longer the pregnancy time, the bigger the fetus, and at this time, the cervix needs to be expanded to the maximum extent to scrape the fetus, so that the uterine scraping is more difficult.

In the existing operation, when expanding uterus, the following methods are generally available: 1. the metal uterine dilator expands the uterus generally from a No. 4 uterine dilator, expands the uterus sequentially, can not expand the uterus intermittently, otherwise easily injure cervical muscle fiber, cause cervical insufficiency, need change different types of uterine dilators to expand the uterus sequentially while expanding the uterus, cause the operation procedure to be complicated, the time is longer, the frequent change expands the uterine rod and causes infection and injury vagina easily. 2. The medicine expands uterus, and the misoprostol tablet can be placed in the fornix vaginae 12 hours before operation, or the contraceptive suppository can be placed in the fornix vaginae 3 hours before operation. 3. The seaweed stick is placed in the cervical canal 12 hours before operation, the action principle is that the seaweed stick is placed behind the cervix, the physical and chemical properties of the cervical canal are changed by absorbing the self-expansion and stimulation of water in cervical secretion, so that the cervical opening is large.

However, the uterine cavity dilation operation is suitable for induced abortion, the normal cervical internal orifice is in a closed state and can only pass through the No. 4 uterine dilation rod, the uterine orifice needs to be dilated to pass through the No. 8-10 uterine dilation rod during abortion operation, and the uterine orifice needs to be dilated to pass through the No. 10 uterine dilation rod during hysteroscopy treatment. However, as mentioned above, the operation procedure is complicated and the time is long due to the metal uterine dilating rod, and the infection and the vaginal injury are easily caused by frequent replacement of the uterine dilating rod. The diameter of the uterine cavity dilating rod is small, the change range of the diameter among different types is small, and the structural improvement of a single uterine cavity dilating rod is difficult to perform due to the small diameter of the uterine cavity dilating rod.

Disclosure of Invention

The invention provides a gynecological quick adjustment type uterine dilator, which can solve the problems that in the prior art, when a uterine dilator is operated, the operation procedure is complex, the operation time is long, and infection and vagina injury are easily caused by frequent replacement of a uterine dilator rod.

A gynecological rapid adjustment type uterine dilator device comprises:

a housing;

the uterine dilators are arranged in a ring shape; the uterus dilator comprises an expansion piece and a driving device, the driving device is arranged on the shell, the expansion piece is slidably arranged in the shell, and the driving device is used for driving the expansion piece to be away from or close to each other; the cross section of expansion piece is the arc structure, works as when the expansion piece leans on each other tightly, and a plurality of the expansion piece constitutes a tubular structure that the diameter is A, works as when the expansion piece is kept away from each other, forms a clearance between two adjacent expansion pieces, and a plurality of the expansion piece forms a tubular structure that the diameter is B, just diameter B's value is greater than diameter A's value.

Preferably, the shell is a turntable, the turntable is of a circular disc structure, and a first abdicating hole is formed in the center of the turntable; the turntable is provided with a plurality of adjusting sliding holes, the extending tracks of the adjusting sliding holes are of arc structures, and the adjusting sliding holes are uniformly distributed along the central circumference of the turntable; the peripheral side wall of the outer ring of the turntable extends towards one side to form an L-shaped edge;

the driving device comprises a fixed disc, a plurality of rotating blocks and a sliding bolt, the fixed disc is of a disc-shaped structure matched with the rotating disc, and the fixed disc is rotatably arranged in the wrapping edge; a second abdicating hole is formed in the center of the fixed disc, the diameters of the first abdicating hole and the second abdicating hole are the same, and a fixing device for fixing the fixed disc to the bed body is arranged on the fixed disc; the fixed disk is provided with a plurality of guide grooves which are uniformly distributed along the central circumferential direction of the fixed disk;

the rotating blocks are roughly in a triangular structure, the rotating blocks are uniformly arranged along the central circumference of the rotating disc, the expansion pieces, the rotating blocks and the sliding bolts are in one-to-one correspondence, the expansion pieces are arranged on the rotating blocks, guide strips are arranged on the rotating blocks, positioning holes are formed in the rotating blocks, the guide strips are slidably arranged in the guide grooves, and the sliding bolts penetrate through the adjusting sliding holes and are arranged in the positioning holes; the rotating block is slidably arranged between the turntable and the fixed disk;

when the turntable rotates, the rotating block is driven to move by the sliding bolt; the rotating blocks are far away from or close to each other when moving, and a hole-shaped structure is formed in the center of the turntable.

Preferably, the expansion piece is rotatably disposed on the rotation block.

Preferably, one end of the expansion piece, which is far away from the rotating block, extends in an arc shape.

Preferably, a first sliding tooth is arranged in the edge covering, a second sliding tooth is arranged on the peripheral side of the fixing plate, and the first sliding tooth is matched with the second sliding tooth.

The invention provides a gynecological quick adjustment type uterine dilator, which is characterized in that the outer side wall of a uterine dilator rod is designed in a split manner and is designed into a plurality of combined dilating sheets, and the diameter change of a supporting space formed by a plurality of dilating sheets is realized by utilizing the mutual approach or separation of the dilating sheets, so that the effective supporting diameter change of the uterine dilator is realized; because the diameter of the supporting space of the body can be changed by the uterus dilator, a series of problems caused by replacing the uterus dilating rod for many times are avoided, the operation flow is greatly simplified, and the infection risk is reduced.

Drawings

Fig. 1 is a schematic structural view (before expansion) of a gynecological quick adjustment type uterine dilator device provided by the invention;

FIG. 2 is a second schematic structural view (after expansion) of the gynecological quick adjustment type uterine dilator device provided by the present invention;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a schematic diagram of the exploded structure of FIG. 1;

FIG. 5 is a first schematic view of the rotor plate and the extender plate of FIG. 4;

FIG. 6 is a second schematic structural view of the rotor plate and the extender plate of FIG. 4;

FIG. 7 is a first schematic structural diagram of the turntable in FIG. 4;

FIG. 8 is a second schematic structural view of the turntable in FIG. 4;

FIG. 9 is a schematic structural view of the fixing plate of FIG. 4;

FIG. 10 is a schematic view of a uterine curettage device of the present invention used in conjunction with a gynecological rapid-adjustment type uterine dilator;

FIG. 11 is a schematic view of a uterine curettage device of the present invention used in conjunction with a gynecological rapid-adjustment type uterine dilator;

FIG. 12 is a cross-sectional view A-A of FIG. 11;

FIG. 13 is a schematic cross-sectional view of FIG. 10;

FIG. 14 is an enlarged view of a portion of FIG. 13 at C;

FIG. 15 is an enlarged view of a portion of FIG. 13 at D;

FIG. 16 is an enlarged view of a portion of FIG. 13 at E;

fig. 17 is a sectional view taken along line B-B in fig. 11.

Description of reference numerals:

10, adjusting a cylinder; 11 adjusting a rod; 111 a limiting rod; 112 a first limiting chute; 113 an adjustment groove; 20 an elastic rod; 21 a flexible film; 22 fixing the board; 30 adjusting the spring; 301 limiting slide block; 31 an adjusting ring; 40 limiting slide blocks; 50 rotating discs; 501 adjusting a slide hole; 502 a first yielding hole; 503 first sliding teeth; 504, edge covering; 51 fixing the disc; 511 a guide groove; 512 second abdicating holes; 513 second sliding teeth; 52 rotating the block; 521, a guide bar; 522 a positioning hole; 53 sliding bolts; 54 expanding the sheet.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

The first embodiment is as follows:

as shown in fig. 1 to 3, a gynecological rapid-adjustment type uterine dilator device provided by an embodiment of the present invention includes a housing and a uterine dilator, wherein the housing is used for supporting;

a plurality of uterine dilators, in this embodiment, 12 uterine dilators are taken as an example, and the plurality of uterine dilators are annularly arranged and surround into a ring-shaped structure; the uterus dilator comprises an expansion piece 54 and a driving device, the driving device is arranged on the shell, the expansion piece 54 is slidably arranged in the shell, and the driving device is used for driving the expansion piece 54 to be away from or close to each other. The driving device can be a plurality of small electric telescopic rods distributed annularly or other structures capable of realizing circumferential expansion.

The cross section of the expansion pieces 54 is of an arc structure, when the expansion pieces 54 are close to each other, a plurality of expansion pieces 54 form a cylindrical structure with the diameter of A, when the expansion pieces 54 are far away from each other, a gap is formed between two adjacent expansion pieces 54, a plurality of expansion pieces 54 form a cylindrical structure with the diameter of B, and the value of the diameter of B is larger than that of the diameter of A.

When the expansion pieces 54 are close to each other, a relatively closed space is formed, which is similar to a rod-shaped structure and is used for simulating a No. 4 uterus dilating rod; when the expansion pieces 54 are far away from each other, gaps are formed among the expansion pieces 54, so that the diameter of the rod-shaped structure formed by the plurality of expansion pieces 54 is enlarged to simulate a uterus dilating rod with a larger diameter. The structure can directly change the size of the effective expansion radius under the condition that the uterine dilator is not pulled out from an affected part, thereby reducing the operation difficulty and the risk of infection.

Example two:

in the first embodiment, because the uterine dilator is used at a special position, the operation space is limited during use, and a space is needed to be left after uterine dilatation for subsequent operations (a gap is needed to be left for the uterine curettage device to extend into), on the basis of the first embodiment, as shown in fig. 7 and 8, in the present embodiment, the housing is a rotating disc 50, the rotating disc 50 is a circular disc-shaped structure, and the center of the rotating disc 50 is provided with a first abdicating hole 502; a plurality of adjusting sliding holes 501 are formed in the turntable 50, the number of the adjusting sliding holes 501 is the same as that of the expansion pieces 54, the extending track of the adjusting sliding holes 501 is of an arc-shaped structure and is approximately C-shaped, the plurality of adjusting sliding holes 501 are evenly distributed along the central circumference of the turntable 50, the arrangement mode of the adjusting sliding holes 501 is as the structure shown in FIG. 7, the adjusting sliding holes 501 are partially overlapped in the arrangement direction and are approximately of a windmill-shaped structure; as shown in fig. 8, an L-shaped rim 504 extends toward one side from the peripheral side wall of the outer ring of the turntable 50;

as shown in fig. 1-4, the driving device includes a fixed disk 51, a plurality of rotating blocks 52 and a sliding bolt 53, the fixed disk 51 is a disk-shaped structure adapted to the rotating disk 50, the fixed disk 51 is rotatably disposed in the covered edge 504, and the outer diameter of the fixed disk 51 is similar to the inner diameter of the covered edge 504; a second abdicating hole 512 is formed in the center of the fixed disk 51, the diameters of the first abdicating hole 502 and the second abdicating hole 512 are the same, the first abdicating hole 502 and the second abdicating hole 512 are approximately overlapped and are used for facilitating the passage of other instruments when in use, and a fixing device for fixing the fixed disk 51 to the bed body is arranged on the fixed disk 51, and the instrument needs to be fixed when in use, so that as shown in fig. 4, a fixing device is arranged on one side of the fixed disk 51 away from the rotating block 52, and the fixing device can be a clamping block, a clamp, a bolt fastening device and other structures and is used for fixing the fixed disk 51, so that the fixed disk 51 and the bed body are relatively stable and the fixed disk 51 is prevented from rotating; as shown in fig. 9, the fixed disk 51 is provided with a plurality of guide slots 511, the guide slots 511 are uniformly arranged along the central circumferential direction of the fixed disk 51, the arrangement direction of the guide slots 511 is opposite to that of the adjusting slide holes 501, and the arrangement modes of the guide slots 511 and the adjusting slide holes 501 are the same;

as shown in fig. 5 and 6, the turning blocks 52 are substantially triangular, the turning blocks 52 are uniformly arranged along the circumferential direction of the center of the turntable 50, as shown in fig. 1-4, when the turning blocks 52 are arranged circumferentially, one corner of each turning block 52 points to the center of gravity of the turntable 50, when the turning blocks 52 are close to each other, the corners are substantially overlapped at one position, and when the turning blocks 52 slide, the corners are far away from each other to form a substantially circular hole; the expansion sheet 54, the rotating block 52 and the sliding bolts 53 are in one-to-one correspondence, the expansion sheet 54 is arranged on the rotating block 52, the rotating block 52 is provided with a guide strip 521, the guide strip 521 is in a strip-shaped bulge and is matched with the guide groove 511, the rotating block 52 is provided with a positioning hole 522, the guide strip 521 is slidably arranged in the guide groove 511, and the sliding bolt 53 passes through the adjusting sliding hole 501 and is arranged in the positioning hole 522; the rotating block 52 is slidably disposed between the turntable 50 and the fixed disk 51; when the turntable 50 rotates, the sliding bolt 53 drives the rotating block 52 to move; the turning blocks 52 are far away from or close to each other when moving, as mentioned above, in the rotating process of the turntable 50, one corner of each of the turning blocks 52 is far away from or close to each other, when the turning blocks are far away from each other, a hole-shaped space is formed, and the hole-shaped space is matched with the first yielding hole 502 and the second yielding hole 512, so that a channel can be formed for accommodating the passage of other subsequent instruments, and the operation is facilitated.

Further, due to the non-standard circular structure of the guide and the shape of the cervical orifice, when the rotating block 52 drives the expansion sheet 54 to move, the arrangement direction of the expansion sheet 54 can deflect, and the deflected expansion sheet 54 can not be effectively attached to the vagina and the cervical orifice due to the arc-shaped surface, so that the expansion sheet 54 can be rotatably arranged on the rotating block 52, and when the expansion sheet 54 is positioned at the vagina and/or the cervical orifice, the expansion sheet 54 can automatically rotate to be attached to the vaginal wall and/or the cervical orifice due to external extrusion.

Furthermore, in order to prevent the vagina and/or the cervical orifice from being damaged during insertion, one end of each expansion piece 54, which is far away from the rotating block 52, extends in an arc shape, and when the expansion pieces 54 are inserted, the end parts, which are far away from the rotating block 52, of the expansion pieces 54 abut against each other to form a circular bulge, so that the damage to the body can be reduced.

Further, in order to prevent the expansion piece 54 from being reset after being pressed, a first sliding tooth 503 is formed in the wrapping edge 504, a second sliding tooth 513 is formed on the peripheral side of the fixing plate 22, the first sliding tooth 503 is matched with the second sliding tooth 513, wherein the first sliding tooth 503 and the second sliding tooth 513 are both in a gear structure, but the first sliding tooth 503 and the second sliding tooth 513 are made of materials with certain elastic deformation capacity, such as engineering plastics, so that the first sliding tooth 503 and the second sliding tooth 513 can be conveniently deformed and dislocated, the relative rotation of the rotating disc 50 and the fixed disc 51 is realized, and the first sliding tooth 503 and the second sliding tooth 513 are matched after the rotation and keep relatively static within a certain stress range.

When the uterine dilator works, the rotating disc 50 is rotated, so that the rotating disc 50 drives the rotating block 52 to reset, the rotating block 52 drives the expansion pieces 54 to move to a state of being attached to each other, namely, a plurality of expansion pieces 54 surround a columnar structure, and the state is the initial state of the uterine dilator. At this moment, the patient is in a state that the two legs are opened towards the two sides, because the diameter of the columnar structure surrounded by the plurality of expansion pieces 54 is smaller, and the driving structure of the columnar structure cannot directly influence the diameter of the columnar structure, the columnar structure surrounded by the expansion pieces 54 can be made smaller, and the problems that the structure is complex, the manufacturing difficulty is high, and the columnar structure is easy to interfere with other subsequent operating parts (such as a uterine curetter) after expansion when the expansion pieces 54 are driven inside are avoided.

Holding the whole uterine dilator, placing the uterine dilator into a preset position, gradually inserting the dilator 54 into the vagina and the cervical orifice, holding a handle (at this time, the fixed disk 51 can also be fixed to an external support structure such as a bed body and the like through a fixing device), keeping the fixed disk 51 relatively stable, rotating the rotary disk 50, at this time, the first sliding tooth 503 overcomes the resistance of the second sliding tooth 513 to generate dislocation, the rotary disk 50 and the fixed disk 51 relatively rotate, when the rotary disk 50 rotates, applying force to the sliding bolt 53 through adjusting the sliding hole 501, at this time, the sliding bolt 53 can drive the rotating block 52 to move, as the guide strip 521 on the rotating block 52 is slidably arranged in the guide groove 511, the rotating block 52 can only move along a preset direction, namely, in the working state shown in fig. 2, at this time, the ends of the rotating blocks 52 facing each other are away from each other, a hole-shaped structure is gradually formed, and the rotating block 52 can drive the dilator 54 to synchronously move while moving, thereby the diameter of the columnar structure surrounded by the expansion sheet 54 is enlarged, thereby simulating a larger type of uterus dilating stick, and the uterus dilating device does not need to be taken out in the process, thereby effectively reducing the infection risk and reducing the operation difficulty. After the rotating disc and the fixed disc 51 are rotated to the preset position, the first sliding teeth 503 and the second sliding teeth 513 can make the rotating disc and the fixed disc 51 relatively stable, at this time, holes formed among the first abdicating hole 502, the second abdicating hole 512 and the rotating block 52 are located on the same axis, and the space can accommodate the extending operation of components such as the uterine curettage device.

After the operation is finished, the rotating disc 50 is rotated reversely to drive the rotating block 52 to reset, and the expanding pieces 54 can be taken out after the space between the expanding pieces is reduced, so that the operation is finished.

Example three:

the application also provides a uterine curettage device used in cooperation with the uterine dilator.

As shown in fig. 10 to 11, the gynecological strength adjustable type rapid uterine curettage device provided by the embodiment of the present invention comprises an adjusting cylinder 10, an adjusting rod 11 and a curettage device:

the adjusting cylinder 10 is provided with a circular adjusting and accommodating hole in a penetrating way, so that the adjusting cylinder is in a cylindrical structure;

one end of the adjusting rod 11 is slidably arranged in the accommodating hole, and the other end of the adjusting rod is exposed out of the adjusting accommodating hole and is used for being conveniently held by hands;

the scraping device comprises a plurality of elastic rods 20, the elastic rods 20 are uniformly distributed in an annular shape, one end of each elastic rod 20 is fixedly connected to the adjusting rod 11, and the other end of each elastic rod 20 is converged at one position, it can be understood that a fixing plate can be arranged at the end part, far away from the adjusting rod 11, of each elastic rod 20, the end parts of the elastic rods 20 are fixedly connected to the fixing plate, and the end parts can also be connected in a pressing or welding mode and then polished smoothly; when the elastic rod 20 is not subjected to an external force, the elastic rod 20 has a tendency of expanding outward, that is, when the elastic rod 20 is not subjected to the external force, the elastic rod 20 is in an arc-shaped structure in a natural state, when the elastic rod 20 is located outside the accommodating hole, the elastic rod 20 expands towards the peripheral side to form a roughly elliptical spherical structure due to the fact that the elastic rod is not subjected to the external force, and the elastic rod is located inside the accommodating hole and is folded to form a columnar structure; the elastic rods 20 are sleeved with flexible films 21, an opening is formed between any two elastic rods 20, as shown in fig. 12-13, one adjacent two elastic rods 20 are not connected by the flexible film 21 to form an opening, the other two adjacent elastic rods 20 are connected by the flexible film 21, a closed structure is formed among the elastic rods 20, the adjusting rods 11 and the flexible film 21, and only the opening without the flexible film 21 is formed between the two elastic rods 20; the flexible membrane 21 is connected with the adjusting rod 11 in a sealing way.

When the uterine curettage device is used, the appliance is firstly adopted to expand the vagina and the cervical orifice, after the expansion is finished, the uterine curettage device extends into the uterus through the first abdicating hole 502 and the second abdicating hole 512, and in an initial state, the adjusting rod 11 is backed, the elastic rod 20 is completely accommodated in the adjusting cylinder 10 or a small part of the elastic rod is exposed, so that the effect that the uterine curettage device extends into the uterus is not influenced; after the front end of curettage ware stretched into the uterus, promote regulation pole 11, adjust pole 11 and drive elastic rod 20 part and expose and adjust a section of thick bamboo 10, elastic rod 20 loses the restraint of adjusting a section of thick bamboo 10, expands to week side, forms one and roughly is pear shape (oval) structure, and this shape is similar with the shape of uterus inner chamber, makes elastic rod 20 contradict on the uterus inner wall, can also combine the visual device among the prior art to carry out the auxiliary operation. Elastic rod 20 is contradicted on the uterus inner wall after, rotate and adjust a section of thick bamboo 10, notice this moment keep adjusting a section of thick bamboo 10 and adjusting the synchronous rotation of pole 11 as far as possible, when adjusting pole 11 and rotating, drive elastic rod 20 and rotate, the embryo drops under elastic rod 20's effect, can suitably roll back regulation pole 11 this moment, make the embryo leave certain activity space, then continue to rotate and adjust a section of thick bamboo 10, promote again and adjust pole 11, make the position of elastic rod 20 reset, repeat above-mentioned action, because as before, the embryo can get into in the space that flexible membrane 21 and elastic rod 20 formed at the opening part that does not connect flexible membrane 21, thereby make things convenient for the disposable of embryo to take out, avoid the injury that later stage negative pressure adsorbs the cause. After the operator judges that the embryo is cleaned, the operator pulls the adjusting rod 11 backwards to drive the elastic rod 20 to retract into the adjusting cylinder 10, takes out the whole uterine curettage device, and cleans the embryo between the elastic rod 20 and the flexible membrane 21.

Example four:

on the basis of the third embodiment, because the inner wall of the uterus is weak, strong external force application may cause damage to the inner wall of the uterus, in this embodiment, the uterine cavity uterine tube further comprises a fixing plate 22 and an adjusting spring 30, the adjusting spring 30 is located in the adjusting cylinder 10, one end of the adjusting spring 30 is fixedly connected to the adjusting rod 11, and the other end of the adjusting spring 30 is fixedly connected to the fixing plate 22; one end of each elastic rod 20 is fixedly connected to the fixing plate 22, and the other end of each elastic rod converges at one position; the flexible membrane 21 is hermetically connected with the fixed plate 22, and the connection mode of the flexible membrane 21 and the connecting rod is the same as the structure in the first embodiment.

Example five:

different from the fourth embodiment, because the embryo size, especially the hardness of the inner wall of the uterus, is different in different gestational periods, the longer the gestational period is, the softer the inner wall of the uterus is, that is, the more easily damaged the uterus is, in order to adjust the force application condition during uterine curettage according to different periods and individual actual conditions, the elastic force during rotation of the curettage device (mainly the elastic rod 20) needs to be adjusted according to different conditions, in this embodiment, as shown in fig. 13 to 16, the embodiment includes:

a fixing plate 22 and an adjusting spring 30, as shown in fig. 17, one end of the adjusting spring 30 is slidably connected to the adjusting rod 11 through a limit slider 40301, and the other end is fixedly connected to the fixing plate 22; an annular limiting sliding groove is formed in the adjusting rod 11 and is matched with the limiting sliding block 40301; the cross section of the limiting slide block 40301 is of a T-shaped structure, the cross sections of the limiting chutes are the same, and the extending track of the limiting chutes is a circular track taking the axial lead of the adjusting rod 11 as the center, so that when the adjusting rod 11 pushes, the fixing plate 22 can be driven to move by the adjusting spring 30, and meanwhile, the rotation of the adjusting rod 11 cannot drive the adjusting spring 30 to rotate; one end of each elastic rod 20 is fixedly connected to the fixing plate 22, and the other end of each elastic rod converges at one position; the flexible membrane 21 is connected with the fixing plate 22 in a sealing way;

and the adjusting device is positioned on the adjusting rod 11 and used for adjusting the torsional elasticity of the adjusting spring 30. The torsional elasticity is an elastic force of the spring in a torsion along the extending track direction, and specifically, in the present embodiment, the torsional elasticity is an elastic force in a circumferential direction of the axis line of the adjusting cylinder 10.

Specifically, as shown in fig. 13 and 14, the adjusting device includes a limiting rod 111 and an adjusting ring 31, an adjusting groove 113 is formed in the adjusting rod 11, the limiting rod 111 is slidably disposed in the adjusting groove 113, a cross section of the limiting rod 111 is a polygonal structure, and a cross section of the limiting rod 111 can be a hexagon structure or an octagon structure, the cross section of the adjusting groove 113 is adapted to the cross section of the limiting rod 111, specifically, the limiting rod 111 can slide along an axial direction of the adjusting rod 11, and the adjusting rod 11 can drive the limiting rod 111 to rotate synchronously when rotating; an adjusting ring 31 is fixedly disposed on the limit rod 111, and an adjusting spring 30 passes through the adjusting ring 31.

When the adjusting spring 30 is used, the strength needs to be adjusted, the elastic rod 20 is held by the hand, so that the elastic rod 20 cannot rotate, at this time, due to the existence of the fixing plate 22, all the elastic rods 20 cannot rotate, that is, the adjusting spring 30 cannot rotate, at this time, the adjusting rod 11 is rotated, the adjusting rod 11 drives the limiting rod 111 to rotate, the limiting rod 111 drives the adjusting ring 31 to synchronously rotate, the adjusting ring 31 is sleeved on the adjusting spring 30 and can slide along the track direction of the adjusting spring 30, that is, in the axis direction of the limiting rod 111, the adjusting ring 31 can move, when the adjusting ring 31 moves, the effective working length of the adjusting spring 30 can be shortened (when in vivo, the adjusting cylinder 10 rotates, the elastic rod 20 bears resistance, so that the adjusting spring 30 deforms, when the adjusting ring 31 deforms, a section behind the adjusting ring 31 can be tightly held on the adjusting ring 31 and the limiting rod 111 due to the existence of the adjusting ring 31, thereby shortening the effective working length), i.e. the effective torsional elasticity of the spring is finally adjusted, thereby enabling the effective torsional force, i.e. the torsional elasticity, of the uterine curettage device to be adjusted according to the actual needs when the uterine curettage operation is performed.

Further, in order to prevent the uterine curettage device from driving the adjusting rod 11 to rotate when the uterine curettage device is stressed in the body, the uterine curettage device further comprises a locking device which is arranged on the adjusting rod 11 and used for limiting the relative rotation between the adjusting cylinder 10 and the adjusting rod 11.

Specifically, as shown in fig. 16, the locking device includes a limit slider 40301, a first limit sliding slot 112 is formed on the adjustment rod 11, a second limit sliding slot is formed on the adjustment cylinder 10, and both the first limit sliding slot 112 and the second limit sliding slot are matched with the limit slider 40301; when the limit slide 40301 is partially positioned in the first limit chute 112 and partially positioned in the second limit chute, the adjusting rod 11 and the adjusting cylinder 10 cannot rotate relatively; when the limit slide 40301 is separated from the second limit chute, the adjusting rod 11 and the adjusting cylinder 10 can rotate relatively.

The cross section of the limit sliding block 40301 is T-shaped, and the limit sliding block 40301 is slidably arranged in the first limit sliding groove 112.

When the adjusting rod 11 needs to be rotated, the limiting slide block 40301 is pulled to separate the limiting slide block 40301 from the second limiting slide groove, and the adjusting rod 11 can be rotated; after the adjustment is completed (only a complete circle can be rotated each time), the adjustment rod 11 is rotated to the position where the first limiting sliding groove 112 and the second limiting sliding groove are matched, the limiting sliding block 40301 is pushed into the first limiting sliding groove 112 and the second limiting sliding groove, and the adjustment rod 11 and the adjustment cylinder 10 cannot rotate relatively at this time.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.