Disclosure of Invention
In order to solve the problems, the invention aims to provide an open-close type hysteroscope curette device.
The invention aims at realizing the following technical scheme:
The invention provides an open-close type uterine cavity curet device under a hysteroscope, which comprises a curet end, a sleeve, a push-pull rod and a hand-held end, wherein the curet end comprises a curet piece I and a curet piece II which are matched with each other, one end of the push-pull rod, which is penetrated through the sleeve, is connected with the curet piece I and the curet piece II, the other end of the push-pull rod is connected with the hand-held end, and the hand-held end is manually controlled to pull the push-pull rod to slide in the sleeve, so that the curet piece I and the curet piece II are released or contracted in the sleeve, and then open-close operation is carried out, so that curet is facilitated.
Further, the curet sheets I and II are symmetrically arranged, the curet sheets I and II are of arc tile-shaped structures, cutting edges are arranged at the bottom end edges of the curet sheets I and II, the cutting edges of the curet sheets I and II have elastic deformation characteristics, saw teeth are arranged on the opposite side edges of the curet sheets I and II, and under the condition of stress, the curet sheets I and II are mutually staggered at the saw teeth to be completely engaged and attached.
Further, the upper ends of the curet sheet I and the curet sheet II are connected with a connecting valve near the outer side, the connecting valve is provided with two branches, two branches at one end of the connecting valve are respectively connected with the curet sheet I and the curet sheet II, the other end of the connecting valve is connected with a push-pull rod, the connecting valve has elastic deformation property, and when no external force acts, the two branches of the connecting valve are respectively elastically opened to the corresponding two sides.
Further, the handheld end comprises a gland, a marking ring is arranged on the outer surface of the sleeve close to the side of the curet end, the sleeve is connected with a handle, the push-pull rod penetrates through the sleeve and is connected with the gland after passing through the handle, and a spring is arranged on the push-pull rod between the handle and the gland.
Further, the curet sheet I and the curet sheet II have elastic deformation characteristics; the curet piece I and the curet piece II are bent into an arc shape under the condition of no external force, a chute, a guide block and a guide frame are arranged on the inner sides of the arc shapes of the curet piece I and the curet piece II, two guide blocks of each group are symmetrically and parallelly distributed on two sides of the chute, guide frames are respectively distributed on the edges of the curet piece I and the curet piece II, the guide blocks and the guide frames are uniformly distributed on two sides of the chute, forked ejector rods are matched with the guide frames, the guide blocks and the chute and are V-shaped, two forked branches of the forked ejector rods are respectively and sequentially arranged on the guide frames at the lower parts of the curet piece I and the curet piece II in a penetrating mode, the chute at the middle of the guide blocks, one end of the forked ejector rod is connected with the ejector rod, the ejector rod is sleeved in the push-pull rod, and the sliding rod is sleeved on the sleeve in a free sliding mode along the axial direction of the sleeve.
Further, the inner side of the sliding handle is provided with a connecting flap, the connecting flap is connected with the ejector rod, the outer side of the sliding handle is provided with a block-shaped bulge, the corresponding positions on the sleeve and the push-pull rod are provided with sliding handle grooves, and the connecting flap axially slides along the sleeve in the sliding handle grooves.
Further, the curet sheet I and the curet sheet II are combined together in a scissor shape, the curet sheet I and the curet sheet II are connected through a hinge shaft and rotationally sheared around the hinge shaft, and the hinge shaft connects the curet sheet I and the curet sheet II on the push-pull rod.
Further, the curet piece I and the curet piece II are partially attached, the connecting rod is connected with the curet piece I and the curet piece II, the shape of the connecting rod is V-shaped, the connecting rod has rebound property, the connecting rod is bent outwards to form an arc in a natural state to be in an open state, the front part and the rear part of the connecting rod are of a bending structure design, the rear part is of a horizontal state, and the front part is bent downwards.
Further, one end of a push-pull rod is connected to the V-shaped top end of the connecting rod, a sliding handle is connected to the other end of the push-pull rod, two symmetrical shifting rods are arranged on two sides of a handle body of the sliding handle, the sliding handle and a spring are installed in a sliding groove of a handle sleeve, the sliding groove extends out of two outer sides of the handle sleeve to form a shifting rod groove, the two shifting rods are symmetrically arranged in the two shifting rod grooves in a sliding mode, a cylindrical boss is arranged at the bottom of the handle sleeve, and the spring is sleeved on the cylindrical boss.
Further, an annular bulge is arranged on the end face of the handle sleeve, the handle sleeve is connected with the sleeve, and a flat groove is arranged in the sleeve close to the end side of the curette.
In the hysteroscope open-close type uterine cavity curette device, the hand-held end is manually controlled to pull the push-pull rod to slide in the sleeve, so that the curette piece I and the curette piece II are released or contracted in the sleeve, and then open-close operation is carried out, thus the curette is convenient to operate, and the hysteroscope open-close type uterine cavity curette device is convenient and practical.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a structural broken view of a first embodiment of an open-close type hysterectomy device under hysteroscope of the present invention;
Fig. 2 is a structural view of an angle of a closing state of two curettage pieces in a first scheme of the hysteroscope open-close type uterine cavity curettage device of the invention;
Fig. 3 is a structural view of another angle of the closing state of the two curettage plates in the first scheme of the hysteroscope open-close type uterine cavity curettage device;
fig. 4 is a diagram showing the open state of two curettage plates in the first aspect of the hysteroscope open-close type curettage device of the invention;
Fig. 5 is a structural broken view of a second embodiment of the hysteroscope open-close type uterine cavity curette device of the present invention;
fig. 6 is a structural diagram of an angle of straight and closed states of two curettage pieces in a second scheme of the hysteroscope open-close type uterine cavity curettage device of the invention;
fig. 7 is a structural diagram of another angle of a straight and closed state of two curettage pieces in a second scheme of the hysteroscope open-close type uterine cavity curettage device of the invention;
Fig. 8 is a structural diagram of a curet sheet in a second aspect of the hysteroscope open-close type uterine cavity curet device of the present invention;
fig. 9 is an exploded view of the structure of the sliding handle of the second embodiment of the hysteroscope open-close type curette device;
fig. 10 is a structure diagram of a straight and open state of two curettage pieces in a second scheme of the hysteroscope open-close type uterine cavity curettage device of the invention;
fig. 11 is a structural view of a bending and opening state of two curettage pieces in a second scheme of the hysteroscope open-close type uterine cavity curettage device of the invention;
Fig. 12 is a view showing another angle of the bending and opening states of two curettage pieces in the second scheme of the hysteroscope open-close type uterine cavity curettage device of the invention;
Fig. 13 is a structural view of a curved closed state of two curettage plates in a second aspect of the hysteroscope open-close type uterine cavity curettage device of the present invention;
fig. 14 is a view showing another angle of the bending and closing state of two curettage pieces in the second scheme of the hysteroscope open-close type uterine cavity curettage device of the invention;
fig. 15 is a structural diagram of a third scheme of an open-close type uterine cavity curet device under a hysteroscope of the invention;
fig. 16 is a structural view of two curettage plates in a third aspect of the hysteroscope open-close type uterine cavity curettage device of the present invention;
Fig. 17 is a structural broken view of a fourth aspect of the hysteroscope open-close type uterine cavity curette device of the present invention;
Fig. 18 is a block diagram of the folding state of the connecting rod in the fourth embodiment of the hysteroscope open-close type uterine cavity curette device of the present invention;
fig. 19 is a diagram showing the open state of the connecting rod in the fourth aspect of the hysteroscope open-close type uterine cavity curette device of the present invention;
Fig. 20 is a sectional view of the sliding handle of the hysteroscope open-close type curette device according to the fourth embodiment of the present invention;
the device comprises a sleeve, a push-pull rod, a key blade I, a key blade II, a key blade 5, a connecting valve, a key cover 6, a marking ring 7, a handle 8, a spring 9, a spring 10, a sliding chute 11, a guide block 12, a guide frame 13, a forked ejector rod 14, an ejector rod 15, a sliding handle 16, a connecting valve 17, a block protrusion 18, a sliding handle groove 19, a hinge shaft 20, a connecting rod 21, a sliding handle 22, a deflector rod 23, a sliding groove 24, a deflector rod groove 25, a cylindrical boss 26, an annular protrusion 27, a flat groove 28 and a handle sleeve.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
As shown in figures 1 to 20, the hysteroscope lower opening and closing type uterine cavity curette device comprises a curette end, a sleeve 1, a push-pull rod 2 and a handheld end, wherein the curette end comprises a curette piece I3 and a curette piece II4 which are matched with each other, one end of the push-pull rod 2 penetrating through the sleeve 1 is connected with the curette piece I3 and the curette piece II4, the other end of the push-pull rod 2 is connected with the handheld end, and the handheld end is manually controlled to pull the push-pull rod 2 to slide in the sleeve 1, so that the curette piece I3 and the curette piece II4 are released or contracted in the sleeve 1, and then opening and closing operations are carried out to facilitate curette.
In the hysteroscope open-close type uterine cavity curette device, the hand-held end is manually controlled to pull the push-pull rod 2 to slide in the sleeve 1, so that the curette piece I3 and the curette piece II4 are released or contracted in the sleeve 1 to be opened or closed, the curette is convenient to operate, and the hysteroscope open-close type uterine cavity curette device is convenient and practical.
The curette comprises a curette piece I3 and a curette piece II4 which are symmetrically arranged, wherein the curette piece I3 and the curette piece II4 are of arc tile-shaped structures, cutting edges are arranged at the bottom end edges of the curette piece I3 and the curette piece II4, the cutting edges of the curette piece I3 and the curette piece II4 have elastic deformation characteristics, saw teeth are arranged on the opposite side edges of the curette piece I3 and the curette piece II4, and under the condition of stress, the curette piece I3 and the curette piece II4 are mutually staggered at the saw teeth and are completely meshed and attached.
The device is composed of four schemes, wherein the scheme one mainly comprises a curet end, a sleeve 1, a handle 8, a push-pull rod 2, a spring 9, a gland 6 and the like. The curet end consists of three parts, namely a curet sheet I3, a curet sheet II4 and a connecting valve 5. The curet sheet I3 and the curet sheet II4 are symmetrically arranged and have the same size. The curette piece I3 and the curette piece II4 are arc-shaped tile-like structures, and the arc radii of the curette piece I3 and the curette piece II are the same. The thickness of the curet piece I3 is the same as that of the curet piece II4, and the width is the same. The bottom end edges of the curet sheet I3 and the curet sheet II4 are provided with cutting edges, and the tissues and foreign matters on the inner wall of the uterine cavity can be effectively scraped by the cutting edges. The device has the advantages that the opposite sides of the curet piece I3 and the curet piece II4 are provided with the sawtooth structures at the end edges of the opposite sides, under the condition of stress, the curet piece I3 and the curet piece II4 can be mutually staggered at the sawtooth structures, and are completely engaged and attached, so that the phenomenon that the curet piece I3 and the curet piece II4 are staggered up and down in combination can be effectively avoided, and the cutting edges of the two groups of curet pieces are not on the same line. The curette end is in a shape of a sheet body strip with an elastic ring, and the curette edge has an elastic deformation characteristic, and is in an elastic full state in a state without external force release.
The upper ends of the curet piece I3 and the curet piece II4 are connected with a connecting valve 5 near the outer side, the connecting valve 5 is provided with two branches, two branches at one end of the connecting valve 5 are respectively connected with the curet piece I3 and the curet piece II4, the other end of the connecting valve 5 is connected with the push-pull rod 2, the connecting valve 5 has elastic deformation characteristic, and when no external force acts, the two branches of the connecting valve 5 are respectively and elastically opened to the corresponding two sides.
The upper ends of the curet piece I3 and the curet piece II4 are connected with a connecting flap 5 at the outer side. The connecting valve 5 is provided with two branches which are identical at the same time, and the cross section of the connecting valve 5 is square. The rear ends of the two connecting petals 5 are inserted into the front end face of the push-pull rod 2, so that the connecting petals 5 are fixedly connected with the push-pull rod 2, the rear ends of the two connecting petals 5 are small, the front ends are connected with the position of the curette piece at a large interval, the two connecting petals 5 are integrally in a horn-shaped outline structure with wide front and narrow rear, the connecting petals 5 have certain elastic deformation, and when no external force acts, the two connecting petals 5 are respectively and elastically opened to the corresponding two sides. When the push-pull rod 2 pushes the connecting petals 5 to extend out of the port of the sleeve 1, the two connecting petals 5 drive the curet piece I3 and the curet piece II4 to open and separate under the elastic action. When the push-pull rod 2 pulls the connecting petals 5 back to retract to the port of the sleeve 1, the two connecting petals 5 drive the curet piece I3 and the curet piece II4 to be combined to the middle position under the constraint of the port of the sleeve 1.
The handheld end comprises a gland 6, a marking ring 7 is arranged on the outer surface of the sleeve 1, which is close to the side of the curet end, the sleeve 1 is connected with a handle 8, the push-pull rod 2 is connected with the gland 6 after penetrating through the sleeve 1 and the handle 8, and a spring 9 is arranged on the push-pull rod 2 between the handle 8 and the gland 6.
The push-pull rod 2 is of a cylindrical rod-shaped structure, and two connecting petals 5 are symmetrically arranged on two sides of the center of the end face of the push-pull rod 2. The diameter of the push-pull rod 2 is larger than the section of the connecting valve 5. The other end of the push-pull rod 2 is connected with a gland 6. The gland 6 is of a stepped cylinder shape, the diameter of one end close to the push-pull rod 2 is smaller than that of one end far away from the push-pull rod 2, and the large end face diameter can facilitate the push-pull operation of operators on the push-pull rod 2. The gland 6 is close to one end of the push-pull rod 2 the diameter is larger than the diameter of the push-pull rod 2. The push-pull rod 2 is arranged inside the sleeve 1. The sleeve 1 is hollow and cylindrical, and the inner diameter of the sleeve is slightly larger than the outer diameter of the push-pull rod 2, so that the push-pull rod 2 can be ensured to move freely along the axial direction inside the sleeve 1. The outer surface of the sleeve 1, which is close to the end side of the curette, is provided with a marking ring 7, and the marking ring 7 is annular and is used for developing contrast, so that an operator can conveniently position the device in a human body. The other end of the sleeve 1 is fixedly connected with a handle 8, the handle 8 is T-shaped, the middle is hollow, a through hole is formed in the position penetrating through the axle center, the diameter of the through hole is the same as the inner diameter of the sleeve 1, the diameter of the through hole is slightly larger than the diameter of the push-pull rod 2, and the push-pull rod 2 can move freely and axially in the through hole. The handle 8 is cylindrical and has a diameter slightly larger than that of the sleeve 1. The tail end of the handle body of the handle 8 is provided with two blocking edges, the blocking edges are symmetrically distributed on two sides of the handle body of the handle 8, a certain radian is formed in the direction of bending the handle body of the handle 8, the bending radian is identical to that of a single finger belly, the ergonomics are met, and the operation of operators is facilitated. The spring 9 is arranged between the handle 8 and the gland 6, the spring 9 is spiral, the inner diameter of the spring 9 is slightly larger than the outer diameter of the push-pull rod 2, the spring 9 can be ensured to be installed on the push-pull rod 2, the outer diameter of the spring 9 is slightly smaller than the outer diameter of the gland 6, and the spring 9 is ensured to be installed between the handle 8 and the gland 6 without slipping.
In this scheme, when operating this device, before the operation, under the action of spring 9 elasticity, gland 6 is in outside position department, and gland 6 takes push-and-pull rod 2 to the gland 6 side to remove simultaneously. The push-pull rod 2 pulls the connecting valve 5 to move towards the gland 6 side, the connecting valve 5 can enter the sleeve 1 in the moving process, two branches of the connecting valve 5 can shrink and enter the sleeve 1, then the curet piece I3 and the curet piece II4 connected with the connecting valve 5 can be gradually combined under the drive of the shrinkage effect of the connecting valve 5, the saw tooth structures of the curet piece I3 and the curet piece II4 can be mutually staggered and completely attached, and therefore the condition that two curet pieces are staggered up and down in the curet operation process can not occur due to the closing of the device is realized. When an operator formally operates the device, through the development radiography effect of the marking ring 7 on the outer surface of the sleeve 1, the device can be positioned at the approximate position in a human body, the device is placed at a foreign body part in a uterine cavity, the handle 8 is fixed by fingers, the gland 6 is pushed, the spring 9 is pressed, the gland 6 pushes the push-pull rod 2, the push-pull rod 2 pushes the connecting valve 5, the connecting valve 5 is pushed out of the sleeve 1, two branches of the connecting valve 5 are outwards opened, the curette piece I3 and the curette piece II4 are driven to be outwards opened, and the curette piece I3 and the curette piece II4 are separated, so that the curette end of the device is opened. The key end is aligned with foreign matters, the gland 6 is slowly loosened, at the moment, under the action of elasticity, the gland 6 pulls the push-pull rod 2, the push-pull rod 2 pulls the connecting valve 5 to enter the sleeve 1, two branches of the connecting valve 5 shrink to drive the key blade I3 and the key blade II4 to be closed, and after the key blade I3 and the key blade II4 are closed, saw teeth on the key blade I3 and the key blade II4 are mutually meshed, so that the key blade I3 and the key blade II4 are prevented from being staggered up and down in the key scraping process, and the key scraping effect is affected. The edge of the curet sheet is used for scraping tissues or foreign matters in the position, which is opposite to the inner wall surface at the front part, of the device in the uterine cavity. The process realizes the opening and closing of the curette and the cleaning of foreign matters.
The curette piece I3 and the curette piece II4 have elastic deformation characteristics, the curette piece I3 and the curette piece II4 are bent into an arc shape under the condition of no external force, a chute 10, a guide block 11 and a guide frame 12 are arranged on the inner side of the arc shape of the curette piece I3 and the curette piece II4, two guide blocks 11 of each group are symmetrically and parallelly distributed on two sides of the chute 10, guide frames 12 are respectively distributed on the edges of the curette piece I3 and the curette piece II4, the guide blocks 11 and the guide frames 12 are distributed on two sides of the chute 10, a forked ejector rod 13 is matched with the guide frames 12, the guide blocks 11 and the chute 10, the forked ejector rod 13 is in a V shape, two forked branches of the forked ejector rod 13 are respectively and sequentially arranged on the chute 10 at the middle of the guide frames 12 and the guide blocks 11 at the lower parts of the curette piece I3 and the curette piece II4, one end of the forked ejector rod 13 is connected with an ejector rod 14, the other end of the ejector rod 14 is connected with a handle 15, the ejector rod 14 is sleeved in the sliding rod 2, the sliding rod 15 is sleeved on the sleeve 1 to slide freely slide along the axial direction of the sleeve 1.
The device also has a second scheme. In the second scheme, the handle 8, the spring 9, the gland 6, the marking ring 7 and the first scheme are the same, and the difference is that in the second scheme, a curette end which can be opened and closed when being bent, and can be bent and stretched to be in a plane straight state and a sleeve pipe 1 with a sliding handle 15 are arranged. In the second scheme, the structure of the curet end is also provided with a curet sheet I3 and a curet sheet II4, the curet sheet I3 and the curet sheet II4 are also provided with saw tooth structures and also provided with cutting edges, and the opening and closing principle of the curet sheet I3 and the curet sheet II4 is the same as that in the first scheme. The difference is that in the second scheme, the curet sheet I3 and the curet sheet II4 are made of materials with certain elasticity and have certain rebound resilience. In the state of not being subjected to external force, the curette piece I3 and the curette piece II4 are bent into an arc shape, and the bent shape is the same as that in the first scheme. Under the condition of stress, the device can deform according to the direction of force. Inside the arc of the curet piece I3 and the curet piece II4, a chute 10, a guide block 11 and a guide frame 12 are arranged. The sliding groove 10 is parallel to the outer side edge of the curette piece, is distributed at the middle position of the curette piece I3 and the curette piece II4, and has a certain depth. The guide blocks 11 are symmetrically and parallelly distributed on two sides of the chute 10, and three groups of guide blocks 11 are totally distributed uniformly along the chute 10, and the distance between each group of guide blocks 11 is the same as the width of the chute 10. The guide block 11 is a rectangular parallelepiped having a certain thickness. At the edges of the curet sheet I3 and the curet sheet II4, a guide frame 12 is respectively distributed, and the guide block 11 and the guide frame 12 on each curet sheet are on a straight line and are distributed at two sides of the chute 10. The guide frame 12 is in a door-shaped structure, the width of the hollow part in the middle is the same as the width between each group of guide blocks 11, and the height is the same as the width from the guide block 11 to the bottom of the chute 10. The forked ejector rod 13 is matched with the guide frame 12, the guide block 11 and the sliding chute 10, the forked ejector rod 13 is in a V shape and is straight, and two forked parts of the V shape can be respectively matched with the sliding chute 10, the guide block 11 and the guide frame 12 on the curette piece I3 and the curette piece II4 when in work. The V-shaped bifurcation has a rectangular cross section, and the end part of the V-shaped bifurcation is provided with an arc chamfer, so that the V-shaped bifurcation can be easily matched with the guide frame 12 and the guide block 11. The height of the V-shaped branched rectangular section is slightly smaller than the hollowed-out height of the guide frame 12, and the width of the V-shaped branched rectangular section is slightly smaller than the hollowed-out width of the guide frame 12, so that the V-shaped branched ejector rod 13 can smoothly move among the guide frame 12, the guide block 11 and the chute 10. The V-shaped fork is connected with a push rod 14, and the section of the push rod 14 is also rectangular. The other end of the ejector rod 14 is connected with a sliding handle 15. The sliding handle 15 is in a ring shape as a whole, and the inner diameter of the sliding handle is slightly larger than that of the sleeve 1, so that the sliding handle 15 can slide freely along the axial direction on the outer wall of the sleeve 1.
The inner side of the sliding handle 15 is provided with a connecting flap 16, the connecting flap 16 is connected with the ejector rod 14, the outer side of the sliding handle 15 is provided with a block-shaped bulge 17, corresponding positions on the sleeve 1 and the push-pull rod 2 are provided with a sliding handle groove 18, and the connecting flap 16 axially slides along the sleeve 1 in the sliding handle groove 18.
Inside the sliding handle 15, there is a connecting flap 16, the connecting flap 16 is flat and block-shaped, the width is the same as the width of the sliding handle 15, and the connecting flap 16 and the ejector rod 14 are fixed together. A block-shaped protrusion 17 is arranged on the outer side of the sliding handle 15, and circular arc chamfers are arranged on the periphery of the block-shaped protrusion 17. The rounded block-shaped protrusion 17 allows an operator to easily operate the sliding handle 15 to move axially on the sleeve 1. The sleeve 1 and the push-pull rod 2 in the second scheme are one more sliding handle groove 18 than the sleeve 1 and the push-pull rod 2 in the first scheme. The slide shank groove 18 cooperates with the connecting flap 16 of the slide shank 15, the connecting flap 16 sliding axially along the sleeve 1 in the slide shank groove 18. The width of the sliding handle groove 18 is slightly larger than the thickness of the connecting flap 16, so that smooth movement of the sliding handle 15 can be ensured.
In this embodiment, the operator is in the same form as in the first embodiment before operating the device. When the device is operated, an operator can manually push the sliding handle 15 except for the same operation as in the scheme one, the sliding handle 15 is connected with the forked ejector rod 13, the forked ejector rod 13 moves in the chute 10, the guide block 11 and the guide frame 12, at the moment, the curette piece I3 and the curette piece I3 elastically deform under the action of the straight forked ejector rod 13, the curette piece I3 and the curette piece II4 are changed into a straight state from arc deformation, and the device can be suitable for cutting and scraping tissues or foreign matters on the upper wall surface and the lower wall surface of the upper position and the lower position of the interior of a uterine cavity, so that the multifunctional use of a curette end is realized.
Wherein, the curet piece I3 and the curet piece II4 are combined together in a scissor shape, the curet piece I3 and the curet piece II4 are connected through the hinge shaft 19 and are sheared by rotating around the hinge shaft 19, and the hinge shaft 19 connects the curet piece I3 and the curet piece II4 on the push-pull rod 2.
The device also has a third scheme. The handle 8, the spring 9, the gland 6 and the marking ring 7 of the third and first embodiments are the same. The curet end in the third scheme also has curet piece I3 and curet piece II4, and curet piece I3 and curet piece II4 are scissors form and combine together, and curet piece I3 and curet piece II4 are the slice rectangle, and curet piece I3 and curet piece II4 tip department is close to inboard thickness and is thinner than outside thickness, can cut the foreign matter very easily. The curette piece I3 and the curette piece II4 are connected by a hinge shaft 19, and the curette piece I3 and the curette piece II4 are sheared by rotating about the hinge shaft 19. The hinge shaft 19 fixes the curet blade I3 and the curet blade II4 to the push-pull rod 2. One end of the push-pull rod 2 is also flat, the section of the push-pull rod is rectangular, the end is connected with the curet piece I3 and the curet piece II4 through the hinge shaft 19, and the other side of the push-pull rod is fixedly connected with the gland 6. The connecting part of the push-pull rod 2 and the curet end is slightly thinner than other parts, so that the thickness of the curet piece I3 and the curet piece II4 can be kept consistent with the thickness of other parts of the push-pull rod 2 when the curet piece I3 and the curet piece II4 are arranged on the push-pull rod 2 through the hinge shaft 19. The push-pull rod 2 is arranged inside the sleeve 1. The sleeve 1 is the same as the sleeve 1 in the first scheme, and the difference is that the hollow section of the sleeve 1 is rectangular in shape, the sleeve 1 is matched with the push-pull rod 2 in the first scheme, the rectangular section of the hollow section of the sleeve 1 is slightly larger than the rectangular section of the push-pull rod 2, and the rectangular section of the sleeve 1 is slightly larger than the width of the closed sleeve I3 and the width of the closed sleeve II4, so that the push-pull rod 2 can smoothly move back and forth in the sleeve 1, and the hollow of the sleeve 1 can be ensured to retract the curette end.
In the scheme, before operating the device, operators have the same principle of the curette end of the device and the curette end of the scheme I, and the operators are contracted in the sleeve 1 under the action of the spring 9. When the device needs to be operated, the gland 6 is pushed, the gland 6 drives the push-pull tube to extend out of the sleeve 1, the curet end extends out of the sleeve 1, and at the moment, the curet piece I3 and the curet piece II4 are opened. After the device is moved to the foreign body position through the contrast development effect of the marking ring 7, the gland 6 is pulled back, at the moment, the gland 6 drives the push-pull rod 2, the push-pull rod 2 drives the curet sheet I3 and the curet sheet II4 to retract, the curet end is contracted to the opening of the sleeve 1, the curet sheet I3 and the curet sheet II4 are blocked by the opening of the sleeve 1 and start to rotate around the hinge shaft 19, the open state is changed into closed state, the foreign body is sheared until the curet is contracted into the sleeve 1, and the device is suitable for cutting and scraping tissues or foreign bodies on the inner wall surface of the upper and lower positions of the uterine cavity.
The curet piece I3 and the curet piece II4 are partially attached, the connecting rod 20 is connected with the curet piece I3 and the curet piece II4, the connecting rod 20 is in a V shape, the connecting rod 20 has rebound property, the connecting rod 20 is bent outwards to be in an arc open state in a natural state, the front part and the rear part of the connecting rod 20 are in a bending structure design, the rear part is in a horizontal state, and the front part is bent downwards.
The device also has a fourth scheme. The fourth scheme mainly comprises a curette end, a connecting rod 20, a sleeve 1, a push-pull rod 2, a sliding handle 21, a handle sleeve 28, a marking ring 7 and the like. The curet end is two curet sheets, namely a curet sheet I3 and a curet sheet II4, which are in a blade shape, thinner and have sharp edges. In a natural state, the curet sheet I3 and the curet sheet II4 are partially attached. The connecting rod 20 is fixedly connected with the curet sheet I3 and the curet sheet II4, the whole shape of the connecting rod 20 is V-shaped, the section of the connecting rod 20 is circular, and the connecting rod is made of a material with certain elasticity and has certain rebound property. The connecting rod 20 is slightly bent outward in a natural state to have a certain arc, and is in an open state. And the front and rear parts of the connecting rod 20 are of L-shaped bending structure design, the rear section is in a horizontal state, the front section is bent downwards to be close to a vertical state, and the joint of the horizontal section and the vertical section is in a circular arc right-angle structure, so that the device is convenient for shearing tissues or foreign matters in the inner wall surface position of the front part, which is opposite to the device in the uterine cavity.
The V-shaped top end of the connecting rod 20 is connected with one end of a push-pull rod 2, the other end of the push-pull rod 2 is connected with a sliding handle 21, two symmetrical deflector rods 22 are arranged on two sides of a handle body of the sliding handle 21, the sliding handle 21 and a spring 9 are arranged in a sliding groove 23 of a handle sleeve 28, the sliding groove 23 extends out of two outer sides of the handle sleeve 28 to form a deflector rod groove 24, the two deflector rods 22 are symmetrically arranged in the two deflector rod grooves 24 in a sliding mode, a cylindrical boss 25 is arranged at the bottom of the handle sleeve 28, and the spring 9 is sleeved on the cylindrical boss 25.
At the V-shaped top end of the connecting rod 20, a push-pull rod 2 is fixedly connected, and the push-pull rod 2 is cylindrical, and the diameter of the push-pull rod is the same as that of the connecting rod 20. The push-pull rod 2 is connected with a sliding handle 21. The handle body of the sliding handle 21 is cylindrical, two symmetrical deflector rods 22 are arranged on two sides of the handle body of the sliding handle 21, and the axes of the two deflector rods 22 pass through the center of the handle body of the sliding handle 21. The cross section of the deflector rod 22 is square, and the square size is smaller than half of the diameter of the cylinder of the sliding handle 21. The deflector rod 22 is arranged at the middle position of the sliding handle 21 in the height direction, the deflector rod 22 is slightly bent towards the curette end to form a certain radian, and the radian is similar to the radian of the human finger belly, so that the human finger belly is ergonomic and convenient for operators to operate. An arc angle is arranged at the joint of the deflector 22 and the handle body of the sliding handle 21. Mounted with the sliding handle 21 is a spring 9, the spring 9 is a spiral spring 9, and the outer diameter of the spring 9 is similar to the diameter of the handle body of the sliding handle 21. The sliding handle 21 and the spring 9 are mounted in the sliding groove 23 of the handle sleeve 28. The handle sleeve 28 is cylindrical, and is hollow inside to form the sliding groove 23. The diameter of the sliding groove 23 is slightly larger than the diameter of the sliding handle 21 and the outer diameter of the spring 9, so that smooth movement of the sliding handle 21 in the sliding groove 23 can be ensured. The sliding groove 23 extends out of the two outer sides of the handle sleeve 28 to form a shift lever groove 24, and the shift lever groove 24 is a sliding channel of the shift lever 22. The lever groove 24 is elongated and has a width slightly larger than the thickness of the lever 22, ensuring smooth movement of the lever 22. The other end of the sliding groove 23 is provided with a cylindrical boss 25, the diameter of the boss is slightly smaller than the inner diameter of the spring 9, the spring 9 can be ensured to be sleeved on the boss, and the stability of the spring 9 is ensured.
The end face of the handle sleeve 28 is provided with an annular bulge 26, the handle sleeve 28 is connected with the sleeve 1, and a flat groove 27 is formed in the sleeve 1 near the end side of the curette.
On the end face of the sleeve 28, an annular projection 26 is provided to facilitate the operator's effort in operation. Secured to the sleeve 28 is the sleeve 1. The inside of the sleeve 1 is hollow, the hollow section is circular, the diameter of the circular shape is slightly larger than that of the push-pull rod 2, and smooth movement of the push-pull rod 2 in the sleeve 1 can be ensured. The sleeve 1 is provided with a flat groove 27 in the inner part near the end face of the curette piece, and the width of the flat groove 27 is slightly larger than two times of the diameter of the single connecting rod 20, so that the connecting rod 20 can be smoothly retracted into the flat groove 27. The width of the flat groove 27 is slightly larger than the width of the push-pull rod 2.
In this embodiment, before the operator operates the device, the two curette pieces are in a natural open state, and the connecting rod 20 is also in an open state. When the device enters the uterine cavity, the approximate position of the device is determined by virtue of the marking ring 7, when the device reaches a foreign body, an operator dials the deflector rod 22 backwards by hand, the deflector rod 22 pulls the sliding handle 21, the sliding handle 21 pulls the push-pull rod 2 to shrink inwards towards the sleeve 1, and at the moment, the connecting rod 20 pulls the curette piece to pull towards the sleeve 1. In this process, the connecting rod 20 is changed from the open state to the closed state, and the curette piece is driven to be closed from the open state, and the foreign matter is sheared by virtue of the shearing action of the curette piece, so that the operation is completed. The structure of the scheme is suitable for shearing tissues or foreign matters in the position, which is opposite to the inner wall surface at the front part, of the device in the uterine cavity.
The invention has the innovative technical points and the beneficial effects that:
1. The curet edge has elastic deformation characteristic, and the sealing ring of the pushing part is elastically deformed and expanded to release after being axially pushed out, so that the curet edge is in a fully elastic open and full state, and the curet edge can be pushed into the uterine cavity under the hysteroscope after being retracted, thereby being convenient for pushing. After the curet enters the uterine cavity, the curet edge can be released, and curet is performed to the maximum extent.
2. In the first scheme, the curet end forms an arc-shaped edge after being extended and released, and can be fitted with the inner wall of the uterine cavity of a patient, so that the curet is more rapid and stable to operate, higher in precision and free from scratching the inner wall of the patient. After the device is closed, the sawtooth structures at the curet ends can be mutually meshed, so that the curet sheets at the curet ends cannot be staggered up and down when the curet is in use, and the curet efficiency is ensured.
3. The connecting valve 5 is made into a V shape, and the connecting valve 5 can shrink and deform to move in the sleeve 1 by controlling the opening and closing of the curet sheet I3 and the curet sheet II4 to form a sliding rail slideway, so as to control the opening and closing of the curet sheet I3 and the curet sheet II 4.
4. Be provided with bifurcation ejector pin 13 mechanism on scheme two of this device, and curet piece I3 and curet piece II4 are elastic deformation structure, are the arcuation under the natural state, can realize curet piece's bending and unbending under the circumstances of receiving bifurcation ejector pin 13 structural force, can adapt to multiple operating condition, and the function is various, and the operation is also very convenient moreover.
5. The first scheme of this device can be fine laminating palace chamber surface, scrapes the key to palace intracavity portion wall tissue, and scheme two and scheme three can cut and scrape palace intracavity portion upper and lower position department internal wall face department tissue or foreign matter, and scheme four can cut palace intracavity portion this device just to place ahead internal wall face position tissue or foreign matter, and the molding is various, and application scope is wide, can adapt to multiple occasion.
6. The device is provided with the spring 9, under the natural state, the front end of the curet end can shrink into the sleeve 1, and a doctor only needs to push the gland 6 to loose hands when curet or cutting, and the curet end can automatically retract under the action of the spring 9, so that the curet or cutting action is completed, time and labor are saved, and the efficiency of medical staff is improved.
7. The marking rings 7 are arranged on the device in several schemes, so that the position of the foreign matter can be rapidly determined through radiography and development, the position of the device can be rapidly identified by an operator, the operation is convenient, and the working efficiency is improved.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.