CN209951364U - Uterus curette with folding function - Google Patents

Abstract

The utility model relates to a uterus curette with folding function, including curette head, curette neck and operation handle, both ends of curette neck link with curette head and operation handle respectively, characterized in that, still include the link gear, curette head includes at least two curette pieces, each curette piece respectively with one end of link gear links to each other, the other end of link gear sets up in being used for controlling each curette piece to expand and splice as an organic whole, and folding and overlap each other together the control division; the uterine curet adopts the curet head with the middle part being not hollowed out, has compact structure and convenient adjustment, has the functions of unfolding and folding, can effectively reduce the size of the curet head, particularly the width size of the curet head, thereby being beneficial to the curet head to smoothly pass through the cervical canal and reducing the discomfort of the checked person, and further effectively solving the problems existing in the prior art.

Description

Uterus curette with folding function

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to uterus curet with folding function.

Background

The uterine curettage refers to an operation of curettage the endometrium or the uterine cavity content, is a common gynecological operation, and is also one of the artificial abortion modes, and in the uterine curettage operation, a curette is a main surgical instrument.

At present, a curette commonly used in hospitals generally comprises a curette head, a curette neck and an operating handle, wherein two ends of the curette neck are respectively connected with the curette head and the operating handle; the curet heads commonly used in the prior art are generally divided into two types, one type is a curet head with a hollow middle part, such as a hollow elliptical ring curet head, and the other type is a curet head with a non-hollow middle part, such as a curet head in the shape of a soup spoon, wherein the curet head with the hollow middle part has a relatively simple structure, and for the curet head with the structure in the prior art, some schemes capable of changing the curet head are provided, for example, an adjustable uterine curet disclosed in Chinese patent CN 103815955A, the curet head in the uterine curet adopts a hollow elliptical ring structure, and the size of the hollow elliptical ring can be adjusted to realize the adjustment of the size of the curet head; in clinic, the middle non-hollow curette head is beneficial to the scraped tissue to be more conveniently pushed out of the uterine cavity, and the tissue residue can not be caused by scattering in the uterine cavity due to the hollow part of the curette head end, so that the middle non-hollow curette head has greater advantage compared with the middle hollow curette head, and the application is wide in clinic.

The whole uterus of a normal human body is in an inverted pear shape, the volume of the uterine cavity is about 5ml, the uterine cavity is communicated with the vagina through a cervical canal, the cervical canal is a narrow muscular pipeline, a sphincter muscle (enabling the cervical canal to be tight and sensitive to the pressure on the cervical canal) is arranged at an opening (namely the cervical opening), the uterus is contracted and closed at ordinary times, a mucus plug can be secreted in the uterus, and bacteria can be prevented from diffusing into the uterus; in the process of uterine curettage, a curettage spoon head of a curettage spoon needs to be inserted into the uterus of a person to be examined through a cervical canal, because the diameter of the cervical canal is usually small and is very sensitive to pressure, while the size of the existing curettage spoon head, especially a curettage spoon head with a non-hollow middle part, cannot be adjusted (namely the size is fixed), and the maximum size (usually the width of the curettage spoon head) of the curettage spoon head is far larger than the size of the curettage neck, in the process of passing through the cervical canal, discomfort of the person to be examined is easily caused on one hand, so that the person to be examined feels very uncomfortable and even endangers life, and artificial abortion syndromes (artificial abortion syndromes refer to that the vagus nerve reflection is enhanced due to cervical traction, dilation and the like in the uterine curettage process, so that the person to be examined has symptoms of nausea, dizziness, chest distress, pale complexion, profuse sweat dripping, cold limbs, blood pressure drop, arrhythmia, even a series of symptoms such as convulsion and shock). On the other hand, in the process of passing through the cervical canal, the curette head can prop open the cervical canal, so that the inner wall of the cervical canal is easily damaged; if the cervical orifice is narrow and the curette head is large, blunt dilatation of the cervical orifice is needed, which is not only troublesome, but also can greatly increase workload, prolong the curettage operation time, reduce efficiency and increase the risk of the examined person.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: aiming at the problems that in the curette commonly used in the prior art, the curette head with a non-hollow middle part has fixed size, is inconvenient to smoothly pass through a cervical canal, and easily causes discomfort of a person to be examined and even has abortion syndrome, the uterine curette with the curette head capable of being unfolded and folded is provided.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is:

the utility model provides a uterus curette with folding function, includes curette head, curette neck and operation handle, curette neck's both ends link to each other with curette head and operation handle respectively, still includes link gear, curette head includes two at least curette pieces, each curette piece respectively with link gear's one end links to each other, and link gear's the other end sets up in being used for controlling each curette piece to expand and splice as an organic whole, and fold and overlap mutually together control portion. By adopting the means that the plurality of curettage spoon blades are spliced together to form the complete curettage spoon head, in the process of curettage operation, before the uterine curettage spoon enters the cervical canal of an examined person, medical personnel can drive the curettage spoon blades to be linked through the control part, so that the curettage spoon blades can be overlapped together, the folding of the curettage spoon head is realized, the size of the curettage spoon head can be effectively reduced, particularly the width size of the curettage spoon head is reduced, and the curettage spoon head can smoothly pass through the cervical canal; after the curette head smoothly passes through the cervical canal and enters the uterus, medical personnel can drive each curette piece to link through the control part, thereby enabling each curette piece to be unfolded and spliced into a whole, forming the middle non-hollow curette head which is completed, conveniently curettage the uterus, and conveniently pushing out the curetted tissue conveniently.

Preferably, the curette head formed by splicing the curette pieces is in a spoon shape or an arc-shaped sheet structure.

Preferably, the length direction of the spoon neck is provided with a scale.

In order to solve the above problems, the present application provides a specific solution as follows: the linkage mechanism comprises a plurality of connecting rods, a transmission rod and a sliding block, wherein one end of the transmission rod is provided with a hinge column, one end of each connecting rod is hinged to the hinge column, the other end of each connecting rod is connected with each curette piece, the other end of the transmission rod is connected with the sliding block, and the sliding block is connected with the control part; a transmission channel is arranged in the curette neck, a sliding groove is arranged in the operating handle, the transmission channel is communicated with the sliding groove, and the transmission rod and the sliding block are respectively arranged in the transmission channel and the sliding groove.

In order to solve the problem that the curette blades can be separated from each other in the spreading process of the curette head, the curette head further comprises a torsion spring, the torsion spring is sleeved on the hinge column, and two torsion arms of the torsion spring are respectively fixed on two adjacent connecting rods; through the arrangement of the torsion spring, in the process of unfolding the curette head, the curette pieces can be separated from each other under the action of the elastic force of the torsion spring, and the state after splicing can be kept.

Preferably, the torsion spring is always in a compressed state.

In order to enable the curette blades to be better overlapped in the folding process of the curette head, the transmission channel comprises a channel I and a channel II, the channel I is connected with the channel II, the channel II is connected with the chute, and the width of the channel I is gradually increased from one end of the channel I connected with the channel II to the other end of the channel I; when the scraper blades move inwards under the driving of the transmission rod, the width of the first channel is gradually reduced, so that the scraper blades can automatically converge towards the middle, and the overlapping is realized.

In order to further reduce the thickness increment (or called height increment) after folding, in a preferred scheme, the curette blade comprises a fan-shaped or fan-shaped ring, the connecting rod is respectively connected with one end of the fan-shaped or fan-shaped ring, the rotation centers of the fan-shaped and fan-shaped rings are superposed with the rotation center of the hinge column, the other ends of the fan-shaped and fan-shaped rings are respectively provided with an arc-shaped bulge for curettage, and the thicknesses of the arc-shaped bulges in the two adjacent curette blades are different.

Preferably, the width of the second channel is larger than the minimum width of the first channel.

Preferably, the control part is a button or a knob.

In order to facilitate the convenient control curette head folding and unfolding of the process of curettage operation, the preferred that provides of this application is: the control part is an annular knob, an internal thread and an annular groove are arranged on the inner side of the annular knob, an external thread and a notch are arranged on the operating handle, and the annular knob is arranged on the operating handle through threaded connection; the notch is communicated with the sliding groove, a bulge is arranged on the sliding block, and the bulge extends into the annular groove of the groove through the notch. Through the arrangement, in the practical application process, medical personnel drive the sliding block to move up and down along the sliding groove by positively/reversely rotating the annular knob, so that the curette pieces are driven to be unfolded outwards and spliced together/folded inwards and overlapped mutually, and the unfolding and folding functions of the curette head are realized.

In order to make two adjacent curette pieces overlap each other when being folded, the preferable scheme is as follows: the surface spliced between two adjacent curet pieces is an inclined surface. Through setting up the inclined plane, when folding, two adjacent curette pieces can be under the effect of drive power, along inclined plane dislocation removal to realize overlapping.

Preferably, the splicing surfaces between two adjacent curette pieces are parallel to each other, or are parallel to the length direction of the connecting rod connected to the outside curette piece.

In one scheme, 2-5 scraper blades are included.

Compared with the prior art, the uterine curet with the folding function has the following beneficial effects:

1. this uterus curette adopts middle non-fretwork curette head, and compact structure adjusts conveniently, has and expandes and folding function, can effectively reduce curette head's size, especially curette head's width size to be favorable to curette head more smooth through the cervical canal, alleviate examinee's uncomfortable and feel, and greatly reduced curettage relevant operation risk, improve the security, thereby can effectively solve the problem that exists among the prior art.

2. This uterus curette, after the curette head passes through the cervical canal smoothly and gets into the uterus, medical personnel can drive each curette piece linkage through control portion to make each curette piece can expand, and splice as an organic whole each other, form the middle non-fretwork curette head of accomplishing, ensure to have great area, both conveniently curette, be convenient for again release the palace chamber with the tissue thing of scraping out.

3. In this palace curet, through rotating cyclic annular knob drive slider reciprocating motion to effectively realize the expansion and the folding function of curet head, not only the design is exquisite, the regulation is convenient, but also has certain locking effect (the slider is difficult to the cyclic annular knob of direction drive and rotates), makes under the condition that does not set up locking device, the cyclic annular knob can be stable fix in the position department that adjusts.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a top view of a spoon-shaped spatula head in the uterine spatula provided in embodiment 1 of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a top view of a curette head with an arc-shaped sheet structure in the uterine curette with a folding function provided in embodiment 1 of the present invention.

Fig. 4 is a left side view of fig. 3.

Fig. 5 is a schematic structural diagram of a first curette head channel in the uterine curette with folding function according to embodiment 1 of the present invention.

Fig. 6 is a schematic view of the positions of the first connecting rod and the second connecting rod when the curette head is in a folded state in the uterine curette with the folding function provided in embodiment 1 of the present invention.

Fig. 7 is a schematic view of the connection between the first connecting rod, the second connecting rod and the transmission rod in the uterine curette with folding function according to embodiment 1 of the present invention.

Fig. 8 is a partial sectional view of a spoon neck of a uterine curette with a folding function according to embodiment 1 of the present invention.

Fig. 9 is a partial sectional view of a uterine curette with a folding function provided in embodiment 1 of the present invention.

Fig. 10 is a schematic structural view of a uterine curette with a folding function according to embodiment 1 of the present invention.

Fig. 11 is a schematic structural view of a ring-shaped knob in the uterine curette with folding function according to embodiment 1 of the present invention.

Fig. 12 is a sectional view of a uterine curette with a folding function according to embodiment 1 of the present invention.

Fig. 13 is a comparison of the folded uterine curet of fig. 9 after deployment and after folding.

Fig. 14 is a view from direction a-a of fig. 9.

Fig. 15 is a partial schematic view of a uterine curette with a folding function provided in embodiment 2 of the present invention.

Fig. 16 is a front view of the uterine curette of fig. 15 with a folding function, in a folded state, of the curette neck.

Fig. 17 is a front view of the uterine curette of fig. 15 with a folding function, in an unfolded state, of the curette neck.

FIG. 18 is a front elevational view of an alternative uterine curette having a folding function, the curette neck in an extended position.

Fig. 19 is a partial top view of the uterine curette with folding function provided in fig. 18, in a folded state.

Fig. 20 is a schematic structural view of a first curette blade in the uterine curette with folding function according to embodiment 3 of the present invention.

Fig. 21 is a schematic view of a uterine curette with a folding function, according to embodiment 3 of the present invention, showing a curette head during folding.

Fig. 22 is a schematic view of another uterine curette with a folding function according to embodiment 3 of the present invention, after the curette head is folded.

Description of the drawings

A curette head 101, a curette neck 102, an operating handle 103, a curette blade I104, a curette blade II 105, a curette blade III 106, a channel I107, a channel II 108, a sliding groove 109, a notch 110, an external thread 111, an annular knob 112, an annular groove 113, an internal thread 114, a fan-shaped or fan-shaped ring 115, an arc-shaped bulge 116, an inclined plane 117,

the connecting rod I201, the connecting rod II 202, the connecting rod III 203, the transmission rod 204, the hinge column 205, the sliding block 206, the bulge 207 and the torsion spring 208.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1, the present embodiment provides a uterine curette with a folding function, including a curette head 101, a curette neck 102, an operation handle 103 and a linkage mechanism, wherein two ends of the curette neck 102 are respectively connected to the curette head 101 and the operation handle 103, the curette head 101 includes at least two curette blades, each curette blade is respectively connected to one end of the linkage mechanism, and the other end of the linkage mechanism is disposed in a control portion for controlling the curette blades to be unfolded and spliced into a whole and to be folded and overlapped with each other. The scraper head 101 is formed by splicing a plurality of scraper blades, so that the scraper head 101 has two states, namely a folded state and an unfolded state, wherein, the scraper head is in the unfolded state, the scraper blades are spliced into a whole, and the scraper head 101 is formed, so that the uterus can be scraped frequently and is in the folded state, the scraper blades are overlapped with each other, and the size of the scraper head 101 can be effectively reduced.

By adopting the means that the plurality of curettage spoon blades are spliced together to form the complete curettage spoon head 101, in the process of curettage operation, before the uterine curettage spoon enters the cervical canal of a checked person, medical personnel can drive each curettage spoon blade to be linked through the control part, so that each curettage spoon blade can be overlapped with each other, the folding of the curettage spoon head 101 is realized, the size of the curettage spoon head 101 can be effectively reduced, particularly the width size of the curettage spoon head 101, and the curettage spoon head 101 can smoothly pass through the cervical canal; after the curette head 101 smoothly passes through the cervical canal and enters the uterus, medical personnel can drive each curette piece to link through the control part, thereby making each curette piece can expand, and splice each other as an organic whole, form the middle non-hollowed curette head 101 of completion, conveniently curette promptly, be convenient for again with the convenient uterine cavity of releasing of the tissue thing of curetting.

The curette head 101 formed by splicing the curette pieces can be in a spoon shape as shown in fig. 1 and 2, namely, the middle of the curette head 101 is not hollow, and the top view of the curette head 101 is oval; the curette head 101 formed by splicing the curette blades can also be in an arc-shaped sheet structure, as shown in fig. 3 and 4, that is, the middle of the curette head 101 is not hollow, and the top view of the curette head 101 is a rectangle with round corners.

For example, in the embodiment, the two scraper blades are included, namely the first scraper blade 104 and the second scraper blade 105, and the scraper head 101 formed by splicing the first scraper blade 104 and the second scraper blade 105 is in the shape of a spoon as shown in fig. 1.

In this embodiment, the linkage mechanism includes a plurality of connecting rods, a transmission rod 204 and a sliding block 206, one end of the transmission rod 204 is provided with a hinge column 205, one end of each connecting rod is respectively hinged to the hinge column 205, the other end of each connecting rod is respectively connected to each scraper blade, the other end of the transmission rod 204 is connected to the sliding block 206, and the sliding block 206 is connected to the control part; a transmission channel is arranged in the spoon neck 102, a sliding groove 109 is arranged in the operating handle 103, the transmission channel is communicated with the sliding groove 109, the transmission rod 204 and the sliding block 206 are respectively arranged in the transmission channel and the sliding groove 109, as shown in fig. 5, connecting rods connected with the first spoon blade 104 and the second spoon blade 105 are respectively a first connecting rod 201 and a second connecting rod 202, and the first connecting rod 201 and the second connecting rod 202 are respectively connected to different heights of the first spoon blade 104 and the second spoon blade 105, as shown in fig. 6, so that when the spoon is folded, the first connecting rod and the second connecting rod do not interfere with each other in the height direction, and the subsequent arrangement of the torsion spring 208 is facilitated.

The uterine curette further comprises a torsion spring 208, wherein the torsion spring 208 is sleeved on the hinge column 205, and two torsion arms of the torsion spring 208 are respectively fixed on two adjacent connecting rods; by providing the torsion spring 208, the respective curette blades can be separated from each other by the elastic force of the torsion spring 208 during the spreading of the curette head 101, and the state after completion of the splicing can be maintained. For example, as shown in fig. 7, through holes are respectively formed at two ends of the first connecting rod 201 and the second connecting rod 202, and are hinged to the hinge pillar 205 through the through holes, the torsion spring 208 is sleeved on the hinge pillar 205 and is located between the first connecting rod 201 and the second connecting rod 202, and two torsion arms of the torsion spring 208 are respectively fixed to the first connecting rod 201 and the second connecting rod 202 so as to provide mutually separated elastic forces for the first connecting rod 201 and the second connecting rod 202.

In a preferred embodiment, the torsion spring 208 is always (i.e., whether in an extended or folded state) in a compressed state.

In order to enable the curette heads 101 to be better overlapped in the folding process, the transmission channel comprises a first channel 107 and a second channel 108, the first channel 107 is connected with the second channel 108, the second channel 108 is connected with the sliding groove 109, and the width of the first channel 107 is gradually increased from one end of the first channel 107, which is connected with the second channel 108, to the other end of the first channel 107; when the scraper blades move inwards under the driving of the transmission rod 204, the width of the channel I107 is gradually reduced as shown in figures 8 and 9, so that the scraper blades can automatically converge towards the middle to realize overlapping; in a further scheme, the height of the first channel 107 can be inconvenient along the length direction of the first channel 107, and when the height of the first channel 107 is gradually reduced towards two sides in the direction perpendicular to the length direction of the first channel 107, so that the positions of the connecting rods can be better matched in the folding and unfolding processes, and the folding and unfolding processes are more stable; for example, as shown in fig. 5, 6, 8 and 9, an end of the first channel 107 far from the second channel 108 is zigzag-shaped to facilitate separation and approach of the two connecting rods, an end of the first channel 107 near the second channel 108 is rectangular or rectangular with rounded corners, and a cross section of the first channel 107 gradually changes from rectangular to zigzag-shaped along a length direction of the first channel 107, as shown in fig. 5, to facilitate restraining the two connecting rods from approaching each other.

In this embodiment, the first channel 107 is shaped, on one hand, each connecting rod can be constrained in the folding process, so that each connecting rod can overcome the elasticity and automatically converge towards the center, thereby realizing folding; on the other hand, the maximum unfolding angle of each connecting rod can be restrained in the unfolding process, particularly the maximum unfolding angle of the two outermost connecting rods can be restrained, so that the two outermost connecting rods are unfolded right in place when being respectively contacted with the side walls of the first channel 107, and seamless splicing of the curette blades is facilitated, as shown in fig. 9.

In a preferred embodiment, the width of the second channel 108 is greater than the minimum width of the first channel 107. as shown in fig. 10, the width of the second channel 108 can be increased as appropriate since the diameter of the spoon neck 102 increases in a direction away from the spoon head 101, so that the size of the inner drive rod 204 can be increased as appropriate to facilitate driving.

In a preferred aspect, the control portion may be a button or a knob. By way of example, in this embodiment, in order to facilitate the medical staff to conveniently control the folding and unfolding of the curettage head 101 during the uterine curettage operation, the preferred schemes provided by this application are: the control part is a ring-shaped knob 112, an internal thread 114 and a ring-shaped groove 113 are arranged on the inner side of the ring-shaped knob 112, as shown in fig. 10, 11 and 12, an external thread 111 and a notch 110 are arranged on the operating handle 103, and the ring-shaped knob 112 is arranged on the operating handle 103 through threaded connection; the slot 110 is in communication with the sliding slot 109, and the slider 206 is provided with a protrusion 207, wherein the protrusion 207 extends into the slot annular groove 113 through the slot 110. With this arrangement, in practice, the medical staff drives the slide block 206 to move up/down along the slide groove 109 by rotating the ring-shaped knob 112 forward/backward, so that the connecting rods move outward/inward (in the first passage 107) relative to the spoon neck 102, thereby driving the spoon blades to unfold outward and splice together/fold inward and overlap each other, thereby realizing the unfolding and folding functions of the spoon head 101. For example, as shown in fig. 13, when the curette head 101 is in the folded state, the overall height (or called thickness) of the curette head 101 is slightly greater than the unfolded height of the curette head 101, but the overall width of the curette head 101 is much smaller than the unfolded width of the curette head 101, so that the drawbacks in the background art can be effectively solved, and details are not described herein.

Preferably, the outer side of the ring-shaped knob 112 is provided with anti-slip teeth.

In order to make two adjacent curette blades overlap each other when being folded, in the embodiment, the surface where two adjacent curette blades are spliced with each other is an inclined surface 117, as shown in fig. 14, by providing the inclined surface 117, when being folded, two adjacent curette blades can be displaced along the inclined surface 117 under the driving force, so as to realize the overlapping.

Preferably, a fillet transition may be disposed at a corner of the inclined plane 117, which is beneficial to a smoother structure of the curette.

In a more complete version, a scale is provided along the length of the curette neck 102 to allow for viewing of the depth of insertion.

It can be understood that, in the present embodiment, if the first scraper blade 104 and the second scraper blade 105 respectively adopt the arc-shaped sheet-like structure, as shown in fig. 3, the same effect is also achieved, and the description is omitted here.

In the preferred embodiment, the scraper head 101 includes 2-5 scraper blades, and most preferably, if the number of scraper blades is too large, the number of connecting rods is increased accordingly, thereby requiring a larger size scraper neck 102 to meet the demand.

Example 2

The main difference between this embodiment 2 and the above embodiment 1 is that, in the uterine curette with folding function provided in this embodiment, the curette head 101 includes three curette blades and three connecting rods, the three connecting rods are respectively connected with the three curette blades, as shown in fig. 15, the three curette blades are respectively a first curette blade 104, a second curette blade 105 and a third curette blade 106, the three connecting rods are respectively a first connecting rod 201, a second connecting rod 202 and a third connecting rod 203, in one aspect, the first connecting rod 201 is fixed to the transmission rod 204, the second connecting rod 202 and the third connecting rod 203 are respectively hinged to the hinge column 205 of the transmission rod 204 and respectively located above and below the first connecting rod 201, a torsion spring 208 is provided between the first connecting rod 201 and the second connecting rod 202, two torsion arms of the torsion spring 208 are respectively fixed to the first connecting rod 201 and the second connecting rod 202, a torsion spring 208 is provided between the first connecting rod 201 and the third connecting rod 203, the two torsion arms of the torsion spring 208 are respectively fixed to the first connecting rod 201 and the third connecting rod 203, and when the folding is performed, the second curette blade 105 and the third curette blade 106 are respectively overlapped above and below the first curette blade 104, as shown in fig. 16 and 17.

In another scheme, the first connecting rod 201 is fixed to the transmission rod 204, the second connecting rod 202 and the third connecting rod 203 are respectively hinged to the hinge column 205 of the transmission rod 204 and are respectively located above the first connecting rod 201, the third connecting rod 203 is located at the uppermost position, a torsion spring 208 is arranged between the first connecting rod 201 and the second connecting rod 202, two torsion arms of the torsion spring 208 are respectively fixed to the first connecting rod 201 and the second connecting rod 202, a torsion spring 208 is arranged between the second connecting rod 202 and the third connecting rod 203, two torsion arms of the torsion spring 208 are respectively fixed to the second connecting rod 202 and the third connecting rod 203, when the folding is performed, the second curette piece 105 and the third curette piece 106 are respectively overlapped above the first curette piece 104 and are respectively located at two sides of the first curette piece 104, as shown in fig. 18 and 19.

The splicing surfaces between two adjacent curette blades may be parallel to each other (i.e. both along the length direction of the curette neck 102), as shown in fig. 1 or 3, and the splicing surfaces between two adjacent curette blades may also be parallel to the length direction of the connecting rod connected to the outer curette blade, as shown in fig. 15 or 19.

Example 3

The main difference between this embodiment 2 and the above embodiment 1 is that in the uterine curette with folding function provided in this embodiment, each curette blade comprises a fan-shaped or fan-shaped ring 115, as shown in fig. 20, the connecting rods are respectively connected to one end of the fan-shaped or fan-shaped ring, and the rotation centers of the fan-shaped or fan-shaped ring are coincident with the rotation center of the hinge column 205, so that during the folding process, the two curette blades can be better overlapped, and the increase of the size of the curette head 101 in the height direction can be reduced as much as possible; the other ends of the fan-shaped ring and the fan-shaped ring are respectively provided with an arc-shaped bulge 116 for uterine curettage, and the thicknesses of the arc-shaped bulges 116 in the two adjacent curettage pieces are different, so that when the curettage device is folded, the arc-shaped bulges 116 of the two adjacent curettage pieces are not interfered with each other and are attached more tightly.

By way of example, as shown in fig. 21, the curette head 101 comprises two curette blades, namely a curette blade one 104 and a curette blade two 105, the splicing surfaces of the two curette blades are inclined surfaces 117, under the guidance of the inclined surfaces 117, when the curette head is folded, the curette blade one 104 and the curette blade two 105 are mutually staggered, and the thickness of the bulge part in the curette blade one 104 is smaller than that of the bulge part in the curette blade two 105, so that the curette blade one 104 and the curette blade two 105 can be better overlapped; for another example, as shown in fig. 22, the curette head 101 includes three curette blades, i.e., a first curette blade 104, a second curette blade 105, and a third curette blade 106, and the splicing surfaces of two adjacent curette blades are inclined surfaces 117, and under the guidance of the inclined surfaces 117, the second curette blade 105 and the third curette blade 106 can rotate in a staggered manner with respect to the first curette blade 104 during folding, so as to overlap the two sides above the first curette blade 104, respectively, thereby completing folding.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.

Claims (10)

1. The utility model provides a uterus curette with folding function, includes curette head, curette neck and operation handle, curette neck's both ends link to each other with curette head and operation handle respectively, its characterized in that still includes link gear, curette head includes two at least curette pieces, each curette piece respectively with link gear's one end links to each other, and link gear's the other end sets up in being used for controlling each curette piece to expand and splice as an organic whole, and fold and overlap together each other control part mutually.

2. The uterine curette with folding function according to claim 1, wherein the curette head formed by splicing the curette blades is in the shape of a spoon or an arc-shaped sheet structure.

3. The uterine curette with the folding function according to claim 1, wherein the linkage mechanism comprises a plurality of connecting rods, a transmission rod and a sliding block, one end of the transmission rod is provided with a hinge column, one end of each connecting rod is respectively hinged to the hinge column, the other end of each connecting rod is respectively connected with each curette piece, the other end of the transmission rod is connected with the sliding block, and the sliding block is connected with the control part; a transmission channel is arranged in the curette neck, a sliding groove is arranged in the operating handle, the transmission channel is communicated with the sliding groove, and the transmission rod and the sliding block are respectively arranged in the transmission channel and the sliding groove.

4. The uterine curette with folding function according to claim 3, further comprising a torsion spring, wherein the torsion spring is sleeved on the hinge post, and two torsion arms of the torsion spring are respectively fixed on two adjacent connecting rods.

5. The uterine curette with folding function according to claim 3, wherein said transmission channel comprises a first channel and a second channel, the first channel is connected with the second channel, and the second channel is connected with said sliding groove, and the width of the first channel gradually increases from one end of the first channel connected with the second channel to the other end of the first channel.

6. The uterine curette with folding function according to claim 3, wherein the curette blade comprises a fan-shaped or fan-shaped ring, the connecting rod is respectively connected with one end of the fan-shaped or fan-shaped ring, the rotation centers of the fan-shaped and fan-shaped rings coincide with the rotation center of the hinge column, the other ends of the fan-shaped and fan-shaped rings are respectively provided with arc-shaped protrusions for curettage of uterus, and the thicknesses of the arc-shaped protrusions in two adjacent curette blades are different.

7. The uterine curette with the folding function according to claim 3, wherein the control part is an annular knob, an inner thread and an annular groove are arranged on the inner side of the annular knob, an outer thread and a notch are arranged on the operating handle, and the annular knob is arranged on the operating handle through threaded connection; the notch is communicated with the sliding groove, a bulge is arranged on the sliding block, and the bulge extends into the annular groove through the notch.

8. The uterine curette with folding function according to any one of claims 1 to 7, wherein the surfaces of the adjacent curette blades which are spliced with each other are inclined surfaces.

9. The uterine curette with folding function according to any one of claims 1 to 7, wherein the splicing surfaces between two adjacent curette blades are parallel to each other or to the length direction of the connecting rod connected to the outer curette blade.

10. The uterine curette with folding function according to any one of claims 1 to 7, comprising 2 to 5 curette blades.

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