阅读说明：本技术 一种用于妇产科的刮宫装置及其使用方法 (Uterine curettage device for obstetrics and gynecology department and using method thereof ) 是由 彭红星 于 2021-08-30 设计创作，主要内容包括：本发明公开了一种用于妇产科的刮宫装置及其使用方法,涉及妇产科刮宫技术领域；为了促进宫腔刮宫的均匀度；具体包括刮头、导液头、锥型软管、导液管、固定环、支撑机构和导杆,所述刮头的一端粘接有橡胶环,且四个导液头与橡胶环的圆周相连接,橡胶环的一端圆周与锥型软管的一端相互粘接,导液管的端部通过螺纹与锥型软管的端部相连接,且导液管的一端通过固定环与支撑机构相连接,导液管底端与导杆形成转动配合,支撑机构的四周粘接有弧形固定条,且支撑机构的一端与导杆圆周形成转动连接,所述支撑机构包括四组伸展组件、三个安装环、滑套、螺杆和三个以上固定块。本发明在刮宫工作的过程中,保证了宫腔内壁刮宫力度的均匀度。(The invention discloses a uterine curettage device for obstetrics and gynecology department and a use method thereof, relating to the technical field of uterine curettage of obstetrics and gynecology department; in order to promote the uniformity of uterine cavity uterine curettage; the utility model discloses a liquid guide pipe, including scraping head, drain head, tapered hose, catheter, solid fixed ring, supporting mechanism and guide arm, the one end of scraping the head bonds and has the rubber ring, and four drain heads are connected with the circumference of rubber ring, and the one end circumference of rubber ring bonds each other with the one end of tapered hose, and the tip of catheter is connected with the tip of tapered hose through the screw thread, and the one end of catheter is connected with supporting mechanism through solid fixed ring, and the catheter bottom forms normal running fit with the guide arm, and supporting mechanism's bonding all around has the arc fixed strip, and supporting mechanism's one end forms the rotation with the guide arm circumference and is connected, supporting mechanism includes four groups and extends subassembly, three collar, sliding sleeve, screw rod and fixed block more than three. The invention ensures the uniformity of uterine curettage force of the inner wall of the uterine cavity in the uterine curettage process.)

1. A uterine curettage device for obstetrics and gynecology department, which comprises a curettage head (1), a liquid guide head (2), a conical hose (3), a liquid guide tube (4), a fixing ring (5), a supporting mechanism (8) and a guide rod (7), it is characterized in that one end of the scraping head (1) is bonded with a rubber ring, the four liquid guide heads (2) are connected with the circumference of the rubber ring, the circumference of one end of the rubber ring is bonded with one end of the conical hose (3), the end part of the liquid guide pipe (4) is connected with the end part of the conical hose (3) through threads, one end of the liquid guide pipe (4) is connected with the supporting mechanism (8) through the fixing ring (5), the bottom end of the liquid guide pipe (4) forms rotating fit with the guide rod (7), the periphery of the supporting mechanism (8) is bonded with an arc-shaped fixing strip (6), and one end of the supporting mechanism (8) is rotationally connected with the circumference of the guide rod (7).

2. The uterine curettage device for obstetrics and gynecology department of claim 1, wherein the supporting mechanism (8) comprises four groups of extension components, three mounting rings (11), a sliding sleeve (12), a screw rod (13) and more than three fixing blocks (15), the screw rod (13) is arranged at the top end of the guide rod (7), the sliding sleeve (12) is arranged on the circumference of the screw rod (13), and the three mounting rings (11) are respectively sleeved on the circumferences of two ends of the sliding sleeve (12) and the bottom end of the fixing ring (5) through threads.

3. A uterine curettage device for gynaecology and obstetrics according to claim 2, characterized in that every fourth said fixing block (15) is respectively adhered to the circumference of each mounting ring (11), each set of extension assembly comprises two second connecting rods (10) and a first connecting rod (9), and every two second connecting rods (10) are respectively rotatably connected to the fixing blocks (15) on the mounting rings (11) at both ends of the sliding sleeve (12).

4. A uterine curettage device for obstetrics and gynecology department according to claim 3, characterized in that each of said first connecting rods (9) is rotatably connected to one side of the fixing ring (5), the ends of the first connecting rod (9) and the second connecting rod (10) are respectively in a rotating relationship with the arc-shaped fixing strip (6), and the top of the fixing ring (5) is provided with a rotating groove.

5. The uterine curettage device for obstetrics and gynecology department of claim 1, characterized in that a blocking piece is bonded on the inner wall of the circumference of the liquid guide tube (4), two first hoses (16) and second hoses (21) are inserted into the top of the blocking piece, the opposite sides of the first hoses (16) and the second hoses (21) are connected through a connecting tube (17), a standby conduit is arranged on the outer wall of one side of the blocking piece, a liquid separation barrel (19) is arranged at the top end of the standby conduit, and L-shaped tubes (20) are arranged on the outer walls of the two sides of the liquid separation barrel (19).

6. A uterine curettage device for obstetrics and gynecology department according to claim 5, characterized in that the top ends of the L-shaped tubes (20) are both connected with piston rods in a sealing and sliding manner, and the opposite ends of the two piston rods are connected with the inclined pieces (22) through rotating shafts, and the opposite sides of the two L-shaped tubes (20) are respectively connected with the opposite sides of the first hose (16) and the second hose (21) through connecting tubes.

7. The uterine curettage device for obstetrics and gynecology department according to claim 5, wherein the same connecting piece (18) is connected to one side of the liquid separating cylinder (19) and one side of the inclined piece (22) through rotating shafts, and communicating holes are respectively formed in the guide rod (7) and the screw rod (13).

8. Uterine curettage device for obstetrics and gynecology department according to claim 5, characterized in that the first hose (16) and the second hose (21) at the bottom of the baffle are provided with a first nursing liquid hose at the end.

9. The uterine curettage device for obstetrics and gynecology department of claim 5, characterized in that the bottom end of the standby conduit is clamped with a second nursing liquid hose, the inner wall of the liquid guiding head (2) is symmetrically adhered with a filter screen (23) and a buffer sheet (24) respectively, and the centers of the filter screen (23) and the buffer sheet (24) are provided with guide holes (25).

10. A use method of a uterine curettage device for obstetrics and gynecology department is characterized by comprising the following steps:

s1: when the device is used, the front end of the device is inserted into a uterine cavity, the guide rod (7) is rotated, the guide rod (7) drives the screw rod (13) to rotate, and the screw rod (13) drives the sliding sleeve (12) to vertically lift;

s2: meanwhile, the first connecting rod (9) and the second connecting rod (10) rotate around the fixing block (15) and drive the arc-shaped fixing strip (6) to extend, so that the arc-shaped fixing strip (6) is propped against the inner wall of the periphery of the uterine cavity, and the screw (13) drives the scraping head (1) to rotate and simultaneously promotes the stretching of the scraping head (1), thereby completing the supporting and fixing of the rear end of the device;

s3: the rotating guide rod (7) drives the curettage head (1) at the end part of the conical hose (3) to curette the uterine cavity, and in the process, nursing liquid is injected into the two first nursing liquid hoses and is guided into the liquid guide head (2) through the first hose (16) and the second hose (21), so that the inner wall of the uterine cavity is effectively nursed by the liquid guide head (2);

s4: when the nursing liquid in one of the first hose (16) and the second hose (21) is reduced, the nursing liquid in the standby conduit jacks up the piston rod in the L-shaped pipe (20) at the pressure reduction end due to the reduction of the internal pressure of the first hose and the second hose, so that the nursing liquid is replenished, and the nursing liquid replenishing function is realized on the first hose (16) and the second hose (21).

Technical Field

The invention relates to the technical field of gynecological uterine curettage, in particular to a gynecological uterine curettage device and a using method thereof.

Background

The obstetrics and gynecology department is one of four main subjects of clinical medicine, and is mainly used for researching the etiology, pathology, diagnosis and prevention of female reproductive organ diseases, the physiological and pathological changes of pregnancy and childbirth, the prevention and diagnosis and treatment of high-risk pregnancy and dystocia, female reproductive endocrine, family planning, female health care and the like. The uterine curettage device is one of the medical appliances commonly used in obstetrics and gynecology department, and the uterine curettage plate is often used to clear and scrape the endometrium clinically, and in the correlation technique, the uterine curettage device that uses mainly comprises handle, connecting rod and scraper ring that link to each other in proper order, and is whole inelastic, and the wall of uterus is easily scraped to stereoplasm scraper blade during the use, brings unnecessary pain for the disease, also brings very big work degree of difficulty for medical staff.

Through the retrieval, chinese patent application number is CN201821483597.X's patent discloses a gynaecology and obstetrics is with curettage ware, including handle, curettage spoon and miniature camera, miniature camera sets up at curettage spoon top, is connected with the controller through the connecting wire, can carry out the formation of image through image size adjust knob and image brightness adjust knob control miniature camera, and is provided with elastic connector on the curettage ware, can prevent that misoperation from causing the injury to palace intracavity wall. One of the gynecological uterine curettage device in the above patent has the following disadvantages:

though the uterus curettage work to the palace chamber has been accomplished to whole device, when the curettage spoon enters into the palace intracavity, its device structure afterbody does not do effectual fixed, leads to the palace intracavity wall to curette the dynamics of dynamics uneven from this, causes the damage very easily, consequently, urgently needed a uterus curettage device for gynaecology and obstetrics and application method thereof.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a uterine curettage device for obstetrics and gynecology department and a using method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a uterine curettage device for gynaecology and obstetrics, includes scrapes head, drain head, awl type hose, catheter, solid fixed ring, supporting mechanism and guide arm, the one end of scraping the head bonds and has the rubber ring, and four drain heads are connected with the circumference of rubber ring, and the one end circumference of rubber ring bonds each other with the one end of awl type hose, and the tip of catheter is connected with the tip of awl type hose through the screw thread, and the one end of catheter is connected with supporting mechanism through solid fixed ring, and the catheter bottom forms normal running fit with the guide arm, and supporting mechanism bonds all around has the arc fixed strip, and supporting mechanism's one end forms to rotate with the guide arm circumference and is connected.

Preferably: the supporting mechanism comprises four groups of extension assemblies, three mounting rings, a sliding sleeve, a screw and more than three fixing blocks, the screw is arranged at the top end of the guide rod, the sliding sleeve is arranged on the circumference of the screw, and the three mounting rings are respectively sleeved on the circumferences of two ends of the sliding sleeve and the bottom end of the fixing ring through threads.

Further: every four fixed blocks are respectively bonded on the circumference of each mounting ring, each group of extension assemblies comprises two second connecting rods and a first connecting rod, and every two second connecting rods are respectively and rotatably connected on the fixed blocks on the mounting rings at the two ends of the sliding sleeve.

On the basis of the scheme: every the head rod rotates respectively and connects in one side of solid fixed ring, and the tip of head rod and second connecting rod forms the rotation relation with the arc fixed strip respectively, and solid fixed ring top is opened has the rotation groove.

The better scheme in the scheme is as follows: the circumference inner wall of catheter bonds there is the separation blade, and the top of separation blade is pegged graft and is had two first hoses and second hose, and the relative one side of first hose and second hose all is connected through the connecting pipe, and one side outer wall of separation blade is provided with reserve pipe, and the top of reserve pipe is provided with the liquid distribution section of thick bamboo, and liquid distribution section of thick bamboo both sides outer wall is provided with L type pipe.

As a further scheme of the invention: the top end of each L-shaped pipe is connected with a piston rod in a sealing sliding mode, opposite ends of the two piston rods are connected with inclined pieces through rotating shafts, and opposite sides of the two L-shaped pipes are connected with opposite sides of the first hose and the second hose through guide connection pipes respectively.

Meanwhile, one side of the liquid separating cylinder and one side of the inclined sheet are connected with the same connecting sheet through a rotating shaft, and communicating holes are formed in the guide rod and the screw rod respectively.

As a preferable aspect of the present invention: the first hose and the second hose at the bottom of the separation blade are provided with first nursing liquid hoses at the end parts.

Meanwhile, a second nursing liquid hose is clamped at the bottom end of the standby guide pipe, a filter screen and a buffer sheet are symmetrically bonded on the inner wall of the liquid guide head respectively, and guide holes are formed in the circle centers of the filter screen and the buffer sheet.

A method of using a uterine curettage device for obstetrics and gynecology department, comprising the steps of:

s1: when the device is used, the front end of the device is inserted into a uterine cavity, the guide rod is rotated, the guide rod drives the screw rod to rotate, and the screw rod drives the sliding sleeve to vertically lift;

s2: meanwhile, the first connecting rod and the second connecting rod rotate around the fixed block and drive the arc-shaped fixed strip to extend, so that the arc-shaped fixed strip is abutted against the inner wall of the periphery of the uterine cavity, and the screw drives the scraping head to rotate and simultaneously promotes the stretching of the scraping head, thereby completing the supporting and fixing of the rear end of the device;

s3: the rotating guide rod drives the curettage head at the end part of the conical hose to curette the uterine cavity, and in the process, nursing liquid is injected into the two first nursing liquid hoses and is guided into the liquid guiding head through the first hose and the second hose, so that the inner wall of the uterine cavity is effectively nursed by the liquid guiding head;

s4: when the nursing liquid in one of the first hose and the second hose is reduced, the internal pressure of the first hose and the second hose is reduced, so that the nursing liquid in the standby conduit jacks up the piston rod in the L-shaped pipe at the pressure reduction end, and the nursing liquid is supplemented to the L-shaped pipe, and the nursing liquid is supplemented to the first hose and the second hose.

The invention has the beneficial effects that:

1. this a uterine curettage device for gynaecology and obstetrics and application method thereof, in operation, insert the front end of device in the palace chamber, and rotatory guide arm, make the guide arm drive the supporting mechanism extension, make four arc fixed strips support palace intracavity wall, it is fixed to accomplish the support to the device rear end with this, simultaneously, pivoted guide arm has driven the head of scraping of tapered hose tip and has scraped the palace chamber work, from this, at the in-process of scraping the work of uterus, the degree of consistency of palace intracavity wall uterine curettage dynamics has been guaranteed, the effect of protection palace intracavity wall has been played.

2. This a uterine curettage device for gynaecology and obstetrics and application method thereof, the guide arm drives the screw rod and rotates, and the screw rod has driven sliding sleeve vertical lift, and simultaneously, head rod and second connecting rod rotate round the fixed block to drive the arc fixed strip and extend, make the arc fixed strip support the inner wall all around of palace chamber, and the screw rod has promoted the head of curettage flexible when having driven the head of curettage rotatory, from this, has not only guaranteed the stable uterine curettage of head of curettage, has improved the efficiency of curettage work moreover.

3. According to the uterine curettage device for obstetrics and gynecology department and the using method thereof, the nursing liquid is injected into the two first nursing liquid hoses, and is guided into the liquid guide head through the first hose and the second hose, the inner wall of the uterine cavity is effectively nursed by the liquid guide head, and between the first hose and the second hose, when the nursing liquid in one of the first hose and the second hose is reduced, the internal pressure of the first hose and the second hose is reduced, so that the nursing liquid in the standby hose jacks up a piston rod in an L-shaped pipe at the pressure reduction end, the nursing liquid supplements the nursing liquid, and therefore the effect of supplementing the nursing liquid to the first hose and the second hose is achieved, and the nursing quality of the inner wall of the uterine cavity is promoted.

4. According to the uterine curettage device for obstetrics and gynecology department and the using method thereof, the filtering and dispersion of the nursing liquid are effectively promoted for the filtering net and the buffering sheet arranged in the liquid guiding head, the flowing speed of the nursing liquid is reduced, the spreading area of the nursing liquid is enlarged, and the nursing effect of the inner wall of the uterine cavity is improved.

Drawings

Fig. 1 is a schematic side view of a uterine curettage device for obstetrics and gynecology department according to the present invention;

fig. 2 is a front view schematically illustrating the uterine curettage device for obstetrics and gynecology department according to the present invention;

fig. 3 is a schematic view of an exploded structure of a supporting mechanism in the uterine curettage device for obstetrics and gynecology according to the present invention;

FIG. 4 is a schematic view showing the internal structure of a catheter in the uterine curettage device for obstetrics and gynecology according to the present invention;

fig. 5 is a schematic cross-sectional structure view of a liquid guiding head in the uterine curettage device for obstetrics and gynecology department according to the present invention.

In the figure: 1-scraping head, 2-liquid guiding head, 3-conical hose, 4-liquid guiding pipe, 5-fixing ring, 6-arc fixing strip, 7-guide rod, 8-supporting mechanism, 9-first connecting rod, 10-second connecting rod, 11-mounting ring, 12-sliding sleeve, 13-screw rod, 14-rotating groove, 15-fixing block, 16-first hose, 17-connecting pipe, 18-connecting piece, 19-liquid separating cylinder, 20-L type pipe, 21-second hose, 22-inclined piece, 23-filter screen, 24-buffer piece and 25-guide hole.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1:

the utility model provides a uterine curettage device for gynaecology and obstetrics, as shown in fig. 1-5, including scraping head 1, drain head 2, tapered hose 3, catheter 4, solid fixed ring 5, supporting mechanism 8 and guide arm 7, the one end of scraping head 1 bonds there is the rubber ring, and four drain heads 2 are connected with the circumference of rubber ring, and the one end circumference of rubber ring bonds each other with tapered hose 3's one end, and the tip of catheter 4 is connected with tapered hose 3's tip through the screw thread, and the one end of catheter 4 is connected with supporting mechanism 8 through solid fixed ring 5, and catheter 4 bottom forms normal running fit with guide arm 7, and supporting mechanism 8 bonds all around has arc fixed strip 6, and supporting mechanism 8's one end forms normal running with guide arm 7 circumference and is connected.

During operation inserts the palace intracavity with the front end of device to rotatory guide arm 7, make guide arm 7 drive the extension of supporting mechanism 8, make four arc fixed strips 6 support palace intracavity wall, it is fixed to accomplish the support of device rear end with this, and simultaneously, pivoted guide arm 7 has driven the head 1 of scraping of 3 tip of tapered hose to scrape palace chamber work, from this, at the in-process of scraping palace work, the degree of consistency of palace intracavity wall uterine curettage dynamics has been guaranteed, the effect of protection palace intracavity wall has been played.

To facilitate the fixation of the rear end of the device; as shown in fig. 3, the supporting mechanism 8 comprises four sets of extending components, three mounting rings 11, a sliding sleeve 12, a screw 13 and more than three fixing blocks 15, and the screw 13 is connected with the top end of the guide rod 7 through threads, the sliding sleeve 12 is connected with the circumference of the screw 13 through threads, the three mounting rings 11 are respectively sleeved on the circumferences of two ends of the sliding sleeve 12 and the bottom end of the fixing ring 5 through threads, every four fixing blocks 15 are respectively adhered to the circumference of each mounting ring 11, each group of stretching assemblies comprises two second connecting rods 10 and a first connecting rod 9, and every two second connecting rods 10 are respectively and rotatably connected on the fixed blocks 15 on the mounting rings 11 at the two ends of the sliding sleeve 12, and each first connecting rod 9 is respectively and rotatably connected to one side of the fixing ring 5, the end parts of the first connecting rods 9 and the second connecting rods 10 respectively form a rotating relation with the arc-shaped fixing strips 6, and the top of the fixing ring 5 is provided with a rotating groove.

During operation, guide arm 7 drives screw rod 13 and rotates, and screw rod 13 has driven sliding sleeve 12 vertical lift, and simultaneously, head rod 9 and second connecting rod 10 rotate round fixed block 15 to it extends to have driven arc fixed strip 6, makes arc fixed strip 6 support palace chamber's inner wall all around, and screw rod 13 has driven and has also promoted scraping head 1 when scraping head 1 is rotatory and stretch out and draw back, from this, has not only guaranteed that the stability of scraping head 1 scrapes the uterus, and has improved the efficiency of scraping the work of uterus moreover.

In order to promote the nursing of the inner wall of the uterine cavity; as shown in fig. 4-5, a baffle is adhered to the inner circumferential wall of the liquid guide tube 4, two first hoses 16 and two second hoses 21 are inserted into the top of the baffle, opposite sides of the first hoses 16 and the second hoses 21 are connected through a connecting tube 17, an outer wall of one side of the baffle is connected with a standby conduit through a thread, the top end of the standby conduit is connected with a liquid distribution tube 19 through a thread, outer walls of two sides of the liquid distribution tube 19 are connected with an L-shaped tube 20 through a thread, the top end of the L-shaped tube 20 is connected with a piston rod in a sealing and sliding manner, opposite ends of the two piston rods are connected with an inclined plate 22 through a rotating shaft, opposite sides of the two L-shaped tubes 20 are respectively connected with opposite sides of the first hoses 16 and the second hoses 21 through a connecting tube, one side of the liquid distribution tube 19 and one side of the inclined plate 22 are connected with the same connecting plate 18 through a rotating shaft, communicating holes are respectively formed in the guide rod 7 and the screw 13, and the end parts of the first hose 16 and the second hose 21 at the bottom of the separation blade are connected with a first nursing liquid hose through threads, the bottom end of the standby conduit is connected with a second nursing liquid hose in a clamping manner, the inner wall of the liquid guide head 2 is symmetrically bonded with a filter screen 23 and a buffer 24 respectively, and a guide hole 25 is formed in the circle center of the filter screen 23 and the buffer 24.

By injecting the nursing liquid into the two first nursing liquid hoses and leading the nursing liquid into the liquid guiding head 2 through the first hose 16 and the second hose 21, the inner wall of the uterine cavity is effectively nursed by the liquid guiding head 2, and when the nursing liquid in one of the first hose 16 and the second hose 21 is reduced, the internal pressure of the nursing liquid in the standby hose is reduced, so that the nursing liquid jacks up a piston rod in the L-shaped pipe 20 at the pressure reduction end, and the nursing liquid supplements the nursing liquid, therefore, the nursing quality of the inner wall of the uterine cavity is promoted by supplementing the nursing liquid to the first hose 16 and the second hose 21.

Meanwhile, the filter screen 23 and the buffer sheet 25 arranged in the liquid guide head 2 effectively promote the filtration and dispersion of the nursing liquid, reduce the flow speed of the nursing liquid, enlarge the spreading area of the nursing liquid and improve the nursing effect of the inner wall of the uterine cavity.

In the embodiment, when the device is used, the front end of the device is inserted into a uterine cavity, the guide rod 7 is rotated, the guide rod 7 drives the screw rod 13 to rotate, the screw rod 13 drives the sliding sleeve 12 to vertically lift, meanwhile, the first connecting rod 9 and the second connecting rod 10 rotate around the fixed block 15 and drive the arc-shaped fixed strip 6 to extend, so that the arc-shaped fixed strip 6 props against the peripheral inner wall of the uterine cavity, the screw rod 13 drives the scraping head 1 to rotate and also promote the stretching of the scraping head 1, thereby completing the supporting and fixing of the rear end of the device, meanwhile, the rotating guide rod 7 drives the scraping head 1 at the end part of the conical hose 3 to scrape the uterine cavity, in the process, nursing liquid is injected into the two first nursing liquid hoses and is guided into the liquid guiding head 2 through the first hose 16 and the second hose 21, the inner wall of the uterine cavity is effectively nursed by the liquid guiding head 2, and in the process, when the nursing liquid in one of the first hose 16 and the second hose 21 is reduced, the nursing liquid in the standby conduit pushes up the piston rod in the L-shaped tube 20 at the pressure-reduced end due to the reduction of the internal pressure, so that the nursing liquid supplements the nursing liquid, thereby supplementing the nursing liquid to the first hose 16 and the second hose 21.

Example 2:

a method for using a uterine curettage device for obstetrics and gynecology department, as shown in fig. 1 to 5, comprising the steps of:

s1: when the device is used, the front end of the device is inserted into a uterine cavity, the guide rod 7 is rotated, the guide rod 7 drives the screw rod 13 to rotate, and the screw rod 13 drives the sliding sleeve 12 to vertically lift;

s2: meanwhile, the first connecting rod 9 and the second connecting rod 10 rotate around the fixing block 15 and drive the arc-shaped fixing strip 6 to extend, so that the arc-shaped fixing strip 6 is propped against the inner wall of the periphery of the uterine cavity, and the screw 13 drives the scraping head 1 to rotate and simultaneously promotes the stretching of the scraping head 1, thereby completing the supporting and fixing of the rear end of the device;

s3: the rotating guide rod 7 drives the curettage head 1 at the end part of the conical hose 3 to curette the uterine cavity, and in the process, nursing liquid is injected into the two first nursing liquid hoses and is guided into the liquid guiding head 2 through the first hose 16 and the second hose 21, so that the inner wall of the uterine cavity is effectively nursed by the liquid guiding head 2;

s4: meanwhile, when the nursing liquid in one of the first hose 16 and the second hose 21 decreases, the nursing liquid in the standby conduit pushes up the piston rod in the L-shaped tube 20 at the pressure-decreasing end due to the decrease of the internal pressure, so that the nursing liquid replenishes the nursing liquid, thereby playing a role of replenishing the nursing liquid in the first hose 16 and the second hose 21.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.