Hysteroscopic telescopic adjustable uterine cavity curette device

Abstract

The present invention relates to the field of medical devices, and specifically to a telescopic and adjustable uterine cavity scraper device under hysteroscopy, comprising: a scraper structure, a telescopic sliding clamp, a sleeve, a pull tube, a pull core, and a sliding handle; the scraper structure comprises a scraper mesh cover and a scraper blade edge. The sliding handle in the device controls the scraper blade edge through the pull core, and the pull ring controls the telescopic sliding clamp through the pull tube, so as to achieve the effect of separate pulling of the scraper blade edge and the telescopic sliding clamp, thereby ensuring the realization of different operation effects of the scraper blade edge such as contraction and release, opening and closing of the telescopic sliding clamp, simplifying the operation mode of medical staff, refining the device scraper action, and achieving a two-way optimization effect. The scraper blade edge is provided on the edge of the scraper mesh cover, which can quickly cut foreign tissue in the uterine cavity, and after the cutting is completed, the foreign matter can enter the inside of the scraper mesh cover, which can prevent the foreign matter from falling into the patient's body, and the operation is simple, convenient and practical.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, and in particular to a telescopic and adjustable uterine cavity curette device under hysteroscopy. Background Art

[0002] As a commonly used surgical instrument in gynecology, the uterine cavity curette is widely used in gynecological endometrial lesion resection, diagnostic curettage and artificial abortion. Under the physiological conditions of pregnancy, the size of the uterine cavity will increase accordingly. During the abortion operation, as the uterine contents are discharged, the uterus will shrink due to the contraction of the uterine muscle layer, and the cervix will also narrow accordingly. At this time, it is necessary to replace the small curette according to the size of the uterine cavity and the narrowness of the cervix to adapt to the changing uterus. In addition, when the uterus is abnormally positioned or local space-occupying mass affects the uterine shape, the size and shape of the curette fits the uterus and is the key to the success of the curettage operation.

[0003] Hysteroscopic endometrial lesion resection, diagnostic curettage or endometrial biopsy also involve changes in the size and shape of the uterine cavity caused by abnormal uterine position or local mass. Hysteroscopic operations require higher flexibility and precision of the instruments. Therefore, there is an urgent need for an endoscopic uterine cavity curette with adjustable curette size and shape.

[0004] The utility model with patent number CN201820548806.8 discloses an easily adjustable uterine scraper, including a scraper head, a scraper handle, a scraper rod and a scraper rod sleeve, wherein the scraper head and the scraper handle are respectively arranged at the two ends of the scraper rod. The scraper head is provided with an annular scraper ring that can be squeezed and deformed. The scraper rod is provided with an external thread and a locking nut that cooperates with the external thread. The scraper rod sleeve can be slidably sleeved on the outside of the scraper rod and the end of the scraper rod sleeve away from the scraper handle abuts against the annular scraper ring, and the scraper rod sleeve is provided with an internal thread that cooperates with the external thread. Although the size of the scraper head of the utility model can be adjusted, the width of the scraper head can only be adjusted by changing the extended length, and cannot be adjusted separately. It is difficult to coordinate the size of the scraper head and the degree of fit between the uterus to an ideal state. Summary of the invention

[0005] In order to solve the above problems, the object of the present invention is to provide a hysteroscopic telescopic and adjustable uterine cavity curette device.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] The present invention provides a hysteroscopic telescopic adjustable uterine cavity scraper device, comprising: a scraper structure, a telescopic sliding clamp, a sleeve, a pull tube, a pull core, and a sliding handle; the scraper structure comprises a scraper mesh cover and a scraper blade edge, the scraper structure is two oppositely arranged, the scraper mesh cover is connected to the scraper blade edge at its periphery, the telescopic sliding clamp is V-shaped, a pull tube hole and two pull core holes are provided at the V-shaped vertex of the telescopic sliding clamp, groove structures are provided on opposite surfaces of the telescopic sliding clamp, and the two scraper structures are movably arranged in the two groove structures respectively;

[0008] There are two pull cores and two slide handles. The pull core is connected between the scraper structure and the slide handle after passing through the pull core hole. Two slide grooves are provided on the sleeve. The pull tube is sleeved in the sleeve and the end thereof is penetrated with a pull tube hole and connected with a telescopic slide clamp. The slide handle is slidably arranged on the sleeve through the slide groove, and the pull core is sleeved in the sleeve.

[0009] The sliding handle drives the scraper structure to adjust the opening angle of the two scraper structures, and the pulling tube is pulled to drive the telescopic sliding clamp to be compressed in the sleeve, and the two scraper blades scrape the scraper objects located in the two scraper net covers.

[0010] Furthermore, the telescopic sliding clamp is elastic, and an inward folding guide groove structure is provided at each end of the telescopic sliding clamp. The two sides of the inward folding guide groove structure are folded inward at the same height as the V-shaped grooves on both sides of the telescopic sliding clamp to a position close to the middle of the groove, and then folded downward to a position close to the bottom surface of the groove. The gap to the bottom surface is greater than the thickness of the scraper mesh cover. The cross-section of the inward folding guide groove structure is a pair of door-shaped structures, and the gap formed by the rear end surface of the scraper mesh cover and the edge of the scraper blade is mounted in the door-shaped structure of the inward folding guide groove.

[0011] Furthermore, a limited rubber block is slidably arranged on the pull tube, and a taper is arranged at the front and rear of the limited rubber block; a telescopic channel is arranged at the front part inside the sleeve, and the pull tube is pulled to drive the telescopic sliding clamp to be compressed in the telescopic channel of the sleeve;

[0012] The rear end of the sleeve is provided with an annular boss and an externally threaded port structure. The externally threaded port structure is located between the annular boss and the rear end face of the sleeve. A threaded cap is provided corresponding to the externally threaded port structure. The threaded cap is a double-annular structure. A taper is provided on the end face of the inner annular structure of the threaded cap. When the threaded cap is screwed into the externally threaded port structure, the end face of the inner annular structure of the threaded cap is squeezed and fitted onto the limiting rubber block, so that the limiting rubber block tightly wraps and fixes the pull tube.

[0013] Furthermore, the scraper mesh cover is flat, and in the stretched and flat state, it is in the shape of a tennis racket with a flat profile, a round front end, a rectangular rear end, and a smooth arc transition between the circle and the rectangle; the scraper blade edge is a ring-shaped closed sheet strip, and the scraper blade edge has elastic deformation characteristics. In the width direction of the blade band, one side of the scraper blade edge is flush with the scraper mesh cover surface, and the other side is an edge higher than the scraper mesh cover surface; a serrated protrusion is provided on the edge of the scraper blade edge higher than the scraper mesh cover.

[0014] Furthermore, the sliding handle has a semi-circular structure as a whole, and a rectangular block-shaped protrusion is arranged in the middle position of the inner side of the sliding handle. The pull core is connected to the front end section of the block-shaped protrusion. The two ends of the arc of the sliding handle each extend an edge vertically toward the center of the arc. The block-shaped protrusion in the middle of the inner side of the slider and the edges at both ends of the arc together constitute the sliding bar structure of the sliding handle, and the sliding bar structure is slidably arranged in the sliding groove.

[0015] Furthermore, a conical structure is provided at the front end of the pull tube. The conical structure is composed of three evenly distributed fan-shaped cones, which are hollow in the middle. There are gaps between the fan-shaped cones, and the conical structure is connected to the pull tube through a journal structure.

[0016] Furthermore, a pull ring is connected to the rear end of the pull tube.

[0017] Furthermore, an annular marking ring is provided at the front end of the sleeve, and a pair of anti-wear rollers are provided on the inner side of the front end of the sleeve close to the front end surface, and are respectively arranged at the upper and lower positions of the telescopic channel.

[0018] Furthermore, the scraper mesh cover is a spherical bulging mesh cover.

[0019] Furthermore, one of the scraper edges is a cutting edge type, and the other scraper edge is a serrated type.

[0020] In the hysteroscopic telescopic adjustable uterine cavity curette device of the present invention, the sliding handle controls the curette blade edge through the pull core, and the pull ring controls the telescopic sliding clamp through the pull tube, so as to achieve the effect of pulling the curette blade edge and the telescopic sliding clamp separately, thereby ensuring the curette action of the curette blade edge such as contraction and release, opening and closing of the telescopic sliding clamp and other different operation action effects, simplifying the operation mode of medical staff, refining the device curette action, and achieving the effect of two-way optimization. The curette blade edge is provided on the edge of the curette mesh cover, which can quickly cut the foreign body tissue in the uterine cavity, and after the cutting is completed, the foreign body can enter the interior of the curette mesh cover, which can prevent the foreign body from falling into the patient's body, and the operation is simple, convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 It is a structural schematic diagram of a scheme 1 of the hysteroscopic telescopic adjustable uterine cavity curette device of the present invention in a curette state;

[0023] Figure 2 It is a structural cross-sectional view of a state of a scheme of a telescopic and adjustable uterine cavity curette device under hysteroscopy of the present invention;

[0024] Figure 3 It is a structural cross-sectional view of another state of the scheme 1 of the hysteroscopic telescopic adjustable uterine cavity curette device of the present invention;

[0025] Figure 4 It is a structural exploded view of the front end portion of the first embodiment of the telescopic and adjustable uterine cavity curette device under hysteroscopy of the present invention;

[0026] Figure 5 It is a structural exploded view of the rear end portion of the first scheme of the telescopic and adjustable uterine cavity curette device under hysteroscopy of the present invention;

[0027] Figure 6 It is a structural cross-sectional view of the position-limiting rubber block in the first solution of the telescopic and adjustable uterine cavity curette device under hysteroscopy of the present invention;

[0028] Figure 7 It is a structural cross-sectional view of the sliding handle and the sliding groove in the first solution of the telescopic and adjustable uterine cavity curette device under hysteroscopy of the present invention;

[0029] Figure 8 It is a structural diagram of the curette structure in the first scheme of the telescopic and adjustable uterine cavity curette device under hysteroscopy of the present invention;

[0030] Fig. 9 It is a structural cross-sectional view of the sliding handle structure in the first solution of the telescopic and adjustable uterine cavity curette device under hysteroscopy of the present invention;

[0031] Fig.10 It is a structural cross-sectional view of the curette structure in the closed state in the first solution of the hysteroscopic telescopic adjustable uterine cavity curette device of the present invention;

[0032] Fig.11 It is a structural diagram of the telescopic channel in the first scheme of the telescopic and adjustable uterine cavity curette device under hysteroscopy of the present invention;

[0033] Fig.12 It is a structural diagram of an angle of the inward folding guide groove structure in the first scheme of the telescopic and adjustable uterine cavity curette device under hysteroscopy of the present invention;

[0034] Fig.13 It is a structural diagram of another angle of the inverted folding guide groove structure in the first solution of the telescopic and adjustable uterine cavity curette device under hysteroscopy of the present invention;

[0035] Fig.14It is a structural diagram of the scraper mesh cover in the second scheme of the telescopic and adjustable uterine cavity scraper device under hysteroscopy of the present invention;

[0036] Fig.15 yes Fig.14 Partial structural diagram of

[0037] Fig.16 yes Fig.14 Partial structural diagram of

[0038] Fig.17 It is a structural diagram of the scraper mesh cover in the third scheme of the telescopic and adjustable uterine cavity scraper device under hysteroscopy of the present invention;

[0039] Fig.18 yes Fig.17 A partial structural diagram of a state;

[0040] Fig.19 yes Fig.17 Partial structural diagram of another state;

[0041] The accompanying drawings are marked as follows: 1. telescopic sliding clamp; 2. sleeve; 3. pull tube; 4. pull core; 5. sliding handle; 6. scraper mesh cover; 7. scraper blade edge; 8. pull tube hole; 9. pull core hole; 10. groove structure; 11. inward folding guide groove structure; 12. limiting rubber block; 13. annular boss; 14. external threaded port structure; 15. threaded cap; 16. block-shaped protrusion; 17. slide strip structure; 18. conical structure; 19. pull ring; 20. annular marking ring; 21. anti-wear roller; 22. uterine cavity; 23. foreign tissue; 24. slide groove; 25. journal structure; 26. telescopic channel. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0043] like Figures 1 to 19As shown, a hysteroscopic telescopic adjustable uterine cavity scraper device according to an embodiment of the present invention comprises: a scraper structure, a telescopic sliding clamp 1, a sleeve 2, a pull tube 3, a pull core 4, and a sliding handle 5; the scraper structure comprises a scraper mesh cover 6 and a scraper blade 7, the scraper structure is two oppositely arranged, the scraper mesh cover 6 is connected to the scraper blade 7 at the periphery, the telescopic sliding clamp 1 is V-shaped, a pull tube hole 8 and two pull core holes 9 are opened at the V-shaped vertex of the telescopic sliding clamp 1, groove structures 10 are arranged on the opposite surfaces of the telescopic sliding clamp 1, and the two scraper structures are movably arranged in the two groove structures 10 respectively;

[0044] There are two pull cores 4 and two slide handles 5. The pull core 4 is connected between the scraper structure and the slide handle 5 after passing through the pull core hole 9. Two slide grooves 24 are provided on the sleeve 2. The pull tube 3 is sleeved in the sleeve 2 and its end is penetrated by the pull tube hole 8 and connected with the telescopic slide clamp 1. The slide handle 5 is penetrated by the slide groove 24 and is slidably set on the sleeve 2. The pull core 4 is sleeved in the sleeve 2.

[0045] The sliding handle 5 drives the scraper structure to adjust the opening angle of the two scraper structures, and the pulling tube 3 is pulled to drive the telescopic sliding clamp 1 to be compressed in the sleeve 2, and the two scraper edges 7 scrape the scraper objects located in the two scraper net covers 6.

[0046] In the telescopic and adjustable uterine cavity curette device under hysteroscopy of the present invention, the sliding handle 5 controls the curette blade edge 7 through the pull core 4, and the pull ring 19 controls the telescopic sliding clamp 1 through the pull tube 3, so as to achieve the effect of the curette blade edge 7 and the telescopic sliding clamp 1 being pulled separately, thereby ensuring the curette action of the curette blade edge 7, such as contraction and release, the opening and closing of the telescopic sliding clamp 1, and other different operation action effects, simplifying the operation mode of medical staff, refining the device curette action, and achieving the effect of two-way optimization. The curette blade edge 7 is provided on the edge of the curette mesh cover 6, and the foreign body tissue 23 in the uterine cavity 22 can be quickly cut, and after the cutting is completed, the foreign body can enter the inside of the curette mesh cover 6, which can prevent the foreign body from falling into the patient's body, and the operation is simple, convenient and practical.

[0047] Among them, the telescopic sliding clamp 1 is elastic, and an inward folding guide groove structure 11 is provided at the ends of both sides of the telescopic sliding clamp 1. The two sides of the inward folding guide groove structure 11 are folded inward at the same height as the V-shaped grooves on both sides of the telescopic sliding clamp 1 to a position close to the middle of the groove, and then folded downward to a position close to the bottom surface of the groove. The gap to the bottom surface is greater than the thickness of the cover surface of the scraper mesh cover 6. The cross-section of the inward folding guide groove structure 11 is a pair of door-shaped structures, and the gap formed by the rear end surface of the scraper mesh cover 6 and the scraper blade edge 7 is mounted in the door-shaped structure of the inward folding guide groove.

[0048] The telescopic sliding clamp 1 is V-shaped as a whole, has a certain elasticity, and its V-shaped two sides can be opened or merged under the action of force. The V-shaped two sides are provided with edges, and the edges of the V-shaped two sides extend a distance into the V-shaped interior, so that the V-shaped two sides form a groove structure 10. The height of the groove formed is slightly larger than the height of the scraper blade 7, and the width is slightly larger than the rear end width of the scraper blade 7, which can ensure that the scraper blade 7 can move smoothly in the grooves on both sides of the telescopic sliding clamp 1 under the action of force. An inward folding guide groove structure 11 is respectively provided at the ends of the two sides of the telescopic sliding clamp 1 V-shaped, and the length of this structure is slightly smaller than the distance between the rear end surface of the scraper mesh cover 6 and the rear end inner surface of the scraper blade 7, so as to ensure that the scraper mesh cover 6 and the scraper blade 7 can be connected to the inward folding guide groove structure 11 after being fixed.

[0049] The width of the inward folded guide groove structure 11 is the largest at the outer end surface and is smaller near the inner side, thus forming a trumpet-mouth structure. This structure can play a guiding role, making it convenient for the scraper blade 7 to smoothly enter the grooves on both sides of the V-shaped telescopic sliding clamp 1, and also making it convenient for the scraper blade 7 to be released when it is extended. The two sides of each inward folding guide structure are folded inward at the same height as the V-shaped grooves on both sides of the telescopic sliding clamp 1 to a position close to the middle of the groove, and then folded downward to a position close to the bottom surface of the groove, and the gap to the bottom surface is slightly larger than the cover thickness of the scraper mesh cover 6, so that the cross-section of the inward folding guide groove structure 11 becomes a pair of approximate door-shaped structures, and the two sides of the scraper blade edge 7 are respectively installed in a door-shaped structure, so that the gap formed by the rear end surface of the scraper mesh cover 6 and the scraper blade edge 7 is just set in the door-shaped structure of the inward folding guide groove, thereby completing the simple installation of the scraper mesh cover 6, so that the scraper mesh cover 6 and the scraper blade edge 7 will not easily fall off from the device, and can move smoothly back and forth in the inward folding guide groove structure 11 to play a guiding role. At the middle position of the apex position of the telescopic sliding clamp 1V, there is a through hole, which is a tube pulling hole 8, used to connect the tube pulling 3 connected thereto. On both sides of the tube pulling hole 8, at the same level as the tube pulling hole 8, there are symmetrically arranged core pulling holes I and core pulling holes II, which are used to pass the core pulling I and core pulling II fixed with the scraper blade edge I and scraper blade edge II, respectively. The core pulling holes I and core pulling holes II are the same size. The diameter of the tube pulling hole 8 is larger than the diameter of the core pulling hole 9.

[0050] Among them, a limit rubber block 12 is slidably arranged on the pull tube 3, and the limit rubber block 12 is tapered at the front and rear; a telescopic channel 26 is arranged at the front part inside the sleeve 2, and the pull tube 3 is pulled to drive the telescopic sliding clamp 1 to be compressed in the telescopic channel 26 of the sleeve 2;

[0051] The rear end of the sleeve 2 is provided with an annular boss 13 and an externally threaded port structure 14. The externally threaded port structure 14 is located between the annular boss 13 and the rear end face of the sleeve 2. A threaded cap 15 is provided corresponding to the externally threaded port structure 14. The threaded cap 15 is a double-annular structure. A taper is provided on the end face of the inner annular structure of the threaded cap 15. When the threaded cap 15 is screwed into the externally threaded port structure 14, the end face of the inner annular structure of the threaded cap 15 is squeezed and fitted on the limiting rubber block 12, so that the limiting rubber block 12 tightly wraps and fixes the pull tube 3.

[0052] A limiting rubber block 12 is fixed at the rear half of the pull tube 3. The limiting rubber block 12 is circular, with tapers at the front and back. It is made of rubber and has a hole in the center. The diameter of the hole is slightly larger than the diameter of the pull tube 3. The limiting rubber block 12 is sleeved on the pull tube 3. When not under force, the limiting rubber block 12 can move axially in the pull tube 3. The slide bar structure 17 slides axially in the slide groove 24 of the sleeve 2. The sleeve 2 is cylindrical and hollow inside. A telescopic channel 26 is provided in the front part of the interior, and its hollow cross-section is a rectangle with arc corners. The width of the rectangle is slightly larger than the width of the telescopic slide clamp 1, and the height of the rectangle is slightly larger than the height of the telescopic slide clamp 1 when the two sides are clamped in a V shape, which can ensure that the telescopic slide clamp 1 can move smoothly axially inside the sleeve 2 when it is in a compressed state. The cross-sectional shape of the slightly rearward part of the sleeve 2 is circular, and its diameter is slightly larger than the diameter of the pull tube 3, which can ensure that the pull tube 3 can move smoothly axially here. A slide groove 24 is provided on the surface of the sleeve 2, and the position of the slide groove 24 corresponds to the rectangular hollow inside the sleeve 2, and the inside and outside are connected. The width of the slide groove 24 is slightly larger than the width of the slide structure 17 on the slide handle 5, which can ensure that the slide structure 17 can move axially smoothly in the slide groove 24. An annular boss 13 and an externally threaded port structure 14 are provided at the rear end of the sleeve 2. The height of the annular boss 13 is slightly higher than the height of the sleeve 2. The externally threaded port structure 14 is located between the annular boss 13 and the rear end face of the sleeve 2, and an external thread is arranged thereon. Inside the sleeve 2 corresponding to the externally threaded port structure 14, there is a hollow with a circular cross-section, and the length of the hollow is roughly similar to the length of the externally threaded port structure 14. The diameter of the hollow here is the same as the diameter of the upper limit rubber block 12 on the pull tube 3.

[0053] Corresponding to the external threaded port structure 14, a threaded cap 15 is provided. The threaded cap 15 is a double ring structure. An internal thread is provided on the inner surface of the ring structure outside the threaded cap 15, and the thread specification here is the same as the external thread specification of the external threaded port structure 14, ensuring that the threaded cap 15 can cooperate with the external threaded port structure 14. There is a gap between the outer surface of the inner ring structure of the threaded cap 15 and the inner surface of the outer ring structure, and the gap distance is greater than the wall thickness of the pull tube 3 at the external threaded port structure 14, which can ensure that the threaded cap 15 will not be interfered by the pull tube 3 when screwing in. A taper is provided on the end face of the inner annular structure, and its taper is the same as that of the limiting rubber block 12, which can ensure that when the threaded cap 15 is screwed into the external threaded port structure 14, the end face of the inner annular structure of the threaded cap 15 can be tightly pressed and fitted on the limiting rubber block 12, and the limiting rubber block 12 is elastically deformed by being pressed, so that the limiting rubber block 12 is radially elongated and axially shortened, so that the diameter of the center hole of the limiting rubber block 12 is reduced by pressure, and it is tightly wrapped on the pull tube 3. At the same time, the limiting rubber block 12 is circumferentially pressed and elongated to press against the inner wall of the sleeve 2, thereby completing the fixing of the limiting rubber block 12, and the limiting rubber block 12 also wraps the pull tube 3 tightly, thereby completing the fixing of the pull tube 3. A through hole is provided at the center of the threaded cap 15, and the diameter of the through hole is slightly larger than the diameter of the pull tube 3, which can ensure that the pull tube 3 can smoothly pass axially in the threaded cap 15 without interference.

[0054] Among them, the scraper mesh cover 6 is flat, and the scraper mesh cover 6 is in the shape of a flat tennis racket when stretched and laid flat, with a round front end and a rectangular rear end, and a smooth arc transition between the circle and the rectangle; the scraper blade edge 7 is a ring-shaped closed sheet strip, and the scraper blade edge 7 has elastic deformation characteristics. The scraper blade edge 7 is flush with the surface of the scraper mesh cover 6 on one side in the width direction of the blade band, and is higher than the edge of the scraper mesh cover 6 on the other side; a serrated protrusion is provided on the edge of the scraper blade edge 7 that is higher than the scraper mesh cover 6.

[0055] The device is mainly composed of a scraper structure, a sleeve 2, a pull tube 3, a pull ring 19 and other parts. The device has three schemes, and the first scheme is as follows: the scraper structure is located at the front end of the whole device, and the scraper structure is mainly composed of a scraper mesh cover 6, a telescopic sliding clamp 1, a scraper blade edge 7 and other parts. There are two scraper mesh covers 6, namely, a scraper mesh cover I and a scraper mesh cover II, which have the same structural dimensions, and the two scraper mesh covers 6 are arranged oppositely. The scraper mesh cover 6 is flat, and the scraper mesh cover 6 has a plane profile similar to the shape of a tennis racket when stretched and laid flat, with a circular front end and a rectangular rear end, and a smooth arc transition between the circle and the rectangle. Dense mesh holes are arranged on the entire cover surface of the scraper mesh cover 6. On the outermost side of the scraper mesh cover 6, a certain length of flange is arranged, which is slightly raised on the edge of the cover surface, and the edge is perpendicular to the cover surface, and the thickness of the edge is the same as the thickness of the cover surface. A scraper blade edge 7 is fixed around the scraper mesh cover 6 via a flange structure. The scraper blade edge 7 is in the shape of a ring-shaped closed sheet strip.

[0056] The scraper blade edge 7 has elastic deformation characteristics. In the absence of external force, the scraper blade edge 7 is in an elastic and full stretch state. There are also two scraper blade edges 7, one is scraper blade edge I and the other is scraper blade edge II, which are matched with scraper mesh cover I and scraper mesh cover II respectively. The two scraper mesh covers 6 have the same structural dimensions, and the two scraper blade edges 7 are also arranged relatively. The scraper blade edge 7 is a closed belt, and the belt width is greater than the edge height of the scraper mesh cover 6. Except that the rear end surface of the scraper mesh cover 6 is not fitted and fixed with the scraper blade edge 7, the rest of the scraper blade edge 7 is tightly fitted with the edge of the scraper mesh cover 6. In the width direction of the blade band, the scraper blade edge 7 is flush with the scraper mesh cover 6 on one side and higher than the edge of the scraper mesh cover 6 on the other side. On the edge of the scraper blade edge 7 that is higher than the scraper mesh cover 6, a serrated protrusion is provided. The serrated protrusion is only arranged at the front of the scraper blade edge 7. The scraper blade edge I and the scraper blade edge II correspond to each other, ensuring that when the two scraper structures are closed, the serrated protrusions can fill each other and fit neatly. After the scraper mesh cover 6 and the scraper blade edge 7 are fixed together, they are connected in the telescopic sliding clamp 1.

[0057] Among them, the sliding handle 5 is an overall semi-circular arc structure, and a rectangular block-shaped protrusion 16 is arranged in the middle position of the inner side of the sliding handle 5. The pull core 4 is connected to the front end section of the block-shaped protrusion 16. The two ends of the arc of the sliding handle 5 each have an edge extending vertically toward the center of the arc. The block-shaped protrusion 16 in the middle of the inner side of the slider and the edges at both ends of the arc together constitute a sliding bar structure 17 of the sliding handle 5, and the sliding bar structure 17 is slidably arranged in the sliding groove 24.

[0058] At the center position of the rear end of the scraper blade edge Ⅰ and the scraper blade edge Ⅱ, a pull core Ⅰ and a pull core Ⅱ are fixed respectively. The pull core Ⅰ and the pull core Ⅱ are both long strips with a circular cross-section. Their diameters are slightly smaller than the diameter of the pull core hole 9, which can ensure that the pull core 4 can move smoothly in the pull core hole 9. The pull core hole 9 plays a supporting and guiding role for the pull core 4. The other ends of the pull core Ⅰ and the pull core Ⅱ are respectively connected with a sliding handle 5Ⅰ and a sliding handle 5Ⅱ. The sliding handle 5Ⅰ and the sliding handle 5Ⅱ are of the same size and symmetrically distributed. The sliding handle 5 is a semicircular arc structure as a whole. A rectangular block protrusion 16 is provided in the middle position on the inner side of the sliding handle 5, and the pull core 4 is fixedly connected to the front end section of the block protrusion 16. At both ends of the arc of the sliding handle 5, an edge extends vertically from the center of the arc, and the thickness of the edge is the same as the thickness of the arc of the sliding handle 5. The block-shaped protrusion 16 in the middle of the inner side of the slider and the edges at both ends of the arc together constitute the slide bar structure 17 of the sliding handle 5, and the slide bar structure 17 can move forward and backward in the slide groove 24 of the sleeve 2. The slide bar structure 17 plays a guiding role in the axial front-to-back direction in the slide groove 24, and the slide groove 24 of the sleeve 2 plays a limiting role in the sliding of the slide bar structure 17. A protrusion with a T-shaped cross section is provided on the outer side of the arc of the sliding handle 5, and anti-slip stripes are provided on the surface of the protrusion. This protrusion is a hand control block, which is convenient for the operator to hold and operate.

[0059] Among them, a conical structure 18 is arranged at the front end of the pulling tube 3. The conical structure 18 is composed of three evenly distributed fan-shaped cones, which are hollow in the middle. There are gaps between the fan-shaped cones. The conical structure 18 is connected to the pulling tube 3 through a journal structure 25.

[0060] The pull tube 3 is connected to the pull tube hole 8 of the telescopic sliding clamp 1. The pull tube 3 is cylindrical as a whole, and its diameter is larger than the diameter of the pull tube hole 8. At the front end of the pull tube 3, there is a conical structure 18. This conical structure 18 is composed of three evenly distributed and identical fan-shaped cones, and the middle is hollow. There is a gap between the fan-shaped cones. The front end of the fan-shaped cone is smaller and the rear end is larger, and the diameter at the front end is smaller than the diameter of the pull tube hole 8, and the diameter at the rear end is larger than the diameter of the pull tube hole 8 when naturally stretched. There is a journal structure 25 at the fixed connection with the pull tube 3, and the diameter at the journal is smaller than the diameter of the rear end of the fan-shaped cone, and also smaller than the diameter of the pull tube hole 8. When the pull tube 3 is installed in the pull tube hole 8, the conical structure 18 of the pull tube 3 is facing the pull tube hole 8 and pushed with force. Because the diameter of the front end of this conical structure 18 is smaller than the diameter of the pull tube hole 8, the pull tube hole 8 guides the conical structure 18 at the front end of the pull tube 3. Under the action of force, three evenly distributed identical sector cones are squeezed toward the middle, so that the cone structure 18 at the front end of the draw tube 3 can be contracted under the action of force, and the diameter becomes smaller, and then pass through the draw tube hole 8. After the draw tube 3 passes through the draw tube hole 8, the sector cone at the front end of the draw tube 3 restores its natural shape and reopens, so that the journal structure 25 at the front end of the draw tube 3 is just stuck in the draw tube hole 8, thereby completing the connection between the draw tube 3 and the telescopic sliding clamp 1.

[0061] Among them, a pull ring 19 is connected to the rear end of the pull tube 3.

[0062] A pull ring 19 is fixedly connected to the rear end of the pull tube 3 . The pull ring 19 is a hollow ring, which is convenient for operators to push and pull the pull tube 3 .

[0063] Among them, an annular marking ring 20 is arranged at the front end of the sleeve 2, and a pair of anti-wear rollers 21 are arranged at the inner side of the front end of the sleeve 2 close to the front end surface, which are arranged at the upper and lower positions of the telescopic channel 26 respectively.

[0064] On the outside of the front end of the sleeve 2, a ring-shaped marking ring 20 of a certain width is provided, which is used for contrast development. The approximate position of the front end of the sleeve 2 in the patient's body can be known through this marking ring, which has a certain positioning effect. On the inner side of the front end of the sleeve 2, close to the front end surface, a pair of anti-wear rollers 21 are provided, which are arranged at the upper and lower positions of the telescopic channel 26 respectively. This anti-wear roller 21 has a certain degree of roughness. When the telescopic sliding clamp 1 moves into the telescopic channel 26 under the action of force, the anti-wear roller 21 of the telescopic channel 26 first contacts the telescopic sliding clamp 1. Under the action of the friction between the telescopic sliding clamp 1 and the anti-wear roller 21, the anti-wear roller 21 rotates, and the telescopic sliding clamp 1 moves inward. The existence of the anti-wear roller 21 avoids the direct contact and sliding between the telescopic sliding clamp 1 and the inner wall of the sleeve 2, and avoids the wear of the front end of the telescopic channel 26. In addition, the sliding friction is changed into rolling friction, so that the operator can save more effort when the telescopic sliding clamp 1 moves.

[0065] When the operator operates the device, the device is inserted into the patient's uterine cavity 22, and the approximate position of the device is determined by the marking ring at the front end of the sleeve 2, and the foreign body tissue 23 in the uterine cavity 22 is found. At this time, the curette structure is in a naturally open state, and the curette structure is close to the foreign body tissue 23, and the pull ring 19 is slowly pulled outward. At this time, the pull ring 19 drives the pull tube 3, and the pull tube 3 drives the telescopic sliding clamp 1 to move backward. The telescopic sliding clamp 1 is compressed under the pulling force, and the telescopic sliding clamp 1 and the anti-wear roller 21 at the front end of the telescopic channel 26 rub into the telescopic channel 26. At the same time, the compression of the telescopic sliding clamp 1 drives a pair of curette mesh covers 6 connected thereto to approach each other. At this time, the curette blade edge 7 with a serrated shape at the front end of the curette mesh cover 6 also approaches each other, slowly approaches the foreign body, and the foreign body is cut by the serrated teeth to remove the foreign body. At the same time, the removed foreign body enters the curette mesh cover 6. The pull ring 19 is pulled until the scraper mesh cover 6 is completely closed. At this time, the foreign body is completely inside the closed scraper mesh cover 6 and will not fall into the patient's uterine cavity 22. Then the device is slowly moved out to complete the cutting of the foreign body. The sliding handle 5 controls the scraper blade 7 through the pull core 4, and the pull ring 19 controls the telescopic sliding clamp 1 through the pull tube 3, so as to achieve the effect of pulling the scraper blade 7 and the telescopic sliding clamp 1 separately, thereby ensuring the realization of different operation effects such as the scraper action, contraction and release of the scraper blade 7, and the opening and closing of the telescopic sliding clamp 1.

[0066] The scraper mesh cover 6 is a spherical bulging mesh cover.

[0067] This device also has a second scheme, which is roughly the same as the first scheme in structure, except that the scraper mesh cover 6 of the second scheme is changed from a flat type to a spherical bulging type mesh cover, so that the size of the foreign matter that can be cut is larger. And the serrated edge of the scraper blade 7 is longer. The serrated edges of the scraper blade I and the scraper blade II can completely bite up and down when closed. The scraper blade 7 is similar to the one in the first scheme, and is also a sheet strip with an elastic ring-shaped closure. And the scraper blade 7 has an elastic deformation characteristic, and the scraper blade 7 is in an elastic and fully stretched state when there is no external force release.

[0068] Among them, one of the scraper blade edges 7 is a cutting edge type, and the other scraper blade edge 7 is a sawtooth type.

[0069] This device also has a third scheme, which has a substantially similar structure to the second scheme, except that one of the scraper blade edges 7 of the third scheme is changed from a serrated type to a cutting edge type, while the corresponding scraper blade remains unchanged and is still a serrated type.

[0070] The innovative technical points and beneficial effects of the present invention are at least:

[0071] 1. The edge of the scraper 7 has elastic deformation characteristics. After the axial push, the closed circle of the push-out part is elastically deformed and expanded, so that the edge of the scraper 7 is in a fully elastic, stretched and full state. The retraction can be pushed into the uterine cavity 22 under the uterine cavity 22 mirror, which is convenient for pushing. After entering the uterine cavity 22, the edge of the scraper 7 can be released, and the scraper is used to the maximum extent.

[0072] 2. The blade edge 7 of the scraper forms an arc-shaped blade edge after being extended and released, which can fit the inner wall of the patient's uterine cavity 22, so that the scraper can be operated more quickly and stably with higher precision without scratching the inner wall of the patient.

[0073] 3. The scraper blade edge 7 is in a closed ring shape and is sleeved inside the telescopic slideway, which is convenient for the operator to extend the device into the patient's uterine cavity 22. The V-shaped opening and closing effect of the telescopic slide clamp 1 can control the upper and lower scraper blade edges 7 to perform scraper movements. The scraper blade edges 7 can shrink and deform to move inside the telescopic slide clamp 1 to control the sliding of the scraper blade edges 7. The inward folding guide groove structure 11 of the telescopic slideway is an open type with both sides opening outward near the exit section, which can facilitate the release of the scraper blade edge 7 when it is extended.

[0074] 4. The curette structure is designed as a plurality of groups of curette blade edges 7 in serrated and blade-shaped shapes that cooperate with each other, and can be effectively replaced according to different inner walls of the uterine cavity 22 and different tissue conditions, so as to achieve the purpose of rapid curettage and effectively improve efficiency and curettage effect.

[0075] 5. The sliding handle 5 controls the scraper blade 7 through the pull core 4, and the pull ring 19 controls the telescopic sliding clamp 1 through the pull tube 3, so as to achieve the effect of separate pulling of the scraper blade 7 and the telescopic sliding clamp 1, thereby ensuring the scraper action of the scraper blade 7, such as contraction and release, opening and closing of the telescopic sliding clamp 1, and other different operating action effects, simplifying the operation mode of medical staff, refining the scraper action of the device, and achieving a two-way optimization effect.

[0076] 6. The upper and lower side end surfaces of the two groups of scraper blade edges 7 are respectively provided with scraper mesh covers 6, which are densely meshed and can collect all the scraped tissue. At the same time, the scraper mesh cover 6 is also designed to have a circular spherical arched surface shape after release, which can collect the scraped tissue to the greatest extent and avoid leakage.

[0077] 7. When the limiting rubber block 12 is squeezed by the threaded cap 15, it can be elastically deformed, extending radially and shortening axially, thereby wrapping the pull tube 3 tightly and pressing the inner wall of the sleeve 2, thereby completing the fixation of the pull tube 3. The pull tube 3 is fixed by the spinning method of the threaded cap 15, so that the pull tube 3 is fixed at a certain position, which is convenient, simple and easy to operate.

[0078] 8. The device is provided with a variety of curette mesh 6 schemes, and the curette mesh 6 can be changed according to the size of the uterine cavity 22 and the width of the cervix. Moreover, the curette mesh 6 is directly worn on the telescopic sliding clip 1, and the curette mesh 6 can be quickly replaced without tools, which is convenient, fast, time-saving and labor-saving.

[0079] 9. The edge of the scraper mesh cover 6 is provided with a scraper blade edge 7, which can quickly cut the foreign tissue 23 in the uterine cavity 22. After the cutting is completed, the foreign matter can enter the interior of the scraper mesh cover 6, which can prevent the foreign matter from falling into the patient's body.

[0080] 10. An anti-wear roller 21 is provided at the front end of the sleeve 2, which changes sliding friction into rolling friction, thereby reducing the friction resistance between the telescopic sliding clamp 1 and the sleeve 2, thereby making the device smoother to use.

[0081] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A hysteroscopic telescopic adjustable uterine cavity curette device, characterized in that: include: A scraper structure, a telescopic sliding clamp, a sleeve, a pull tube, a pull core, and a sliding handle; the scraper structure includes a scraper mesh cover and a scraper blade edge, the scraper structure is two and arranged oppositely, the scraper mesh cover is connected to the scraper blade edge at its periphery, the telescopic sliding clamp is V-shaped, a pull tube hole and two pull core holes are provided at the V-shaped vertex of the telescopic sliding clamp, groove structures are provided on the opposite surfaces of the telescopic sliding clamp, and the two scraper structures are movably arranged in the two groove structures respectively; There are two pull cores and two slide handles. The pull core is connected between the scraper structure and the slide handle after passing through the pull core hole. Two slide grooves are provided on the sleeve. The pull tube is sleeved in the sleeve and its end is penetrated through the pull tube hole and connected with the telescopic slide clamp. The slide handle is slidably arranged on the sleeve through the slide groove, and the pull core is sleeved in the sleeve. Sliding the sliding handle drives the scraper structure to adjust the opening angle of the two scraper structures, pulling the pull tube drives the telescopic sliding clamp to be compressed in the sleeve, and the two scraper blades scrape the scraper objects located in the two scraper mesh covers; The telescopic sliding clamp is elastic, and an inward folding guide groove structure is respectively arranged at the ends on both sides of the telescopic sliding clamp. The two sides of the inward folding guide groove structure are folded inwardly to a position close to the middle position of the groove at the same height as the V-shaped grooves on both sides of the telescopic sliding clamp, and then folded downward to a position close to the bottom surface of the groove. The gap to the bottom surface is greater than the thickness of the scraper mesh cover. The cross-section of the inward folding guide groove structure is a pair of gate-shaped structures, and the gap formed by the rear end surface of the scraper mesh cover and the scraper blade edge is sleeved in the gate-shaped structure of the inward folding guide groove.

2. The hysteroscopic telescopic adjustable uterine cavity curette device according to claim 1, characterized in that: A limit rubber block is slidably arranged on the pull tube, and the limit rubber block is provided with a taper at the front and rear; a telescopic channel is arranged at the front part inside the sleeve, and the pull tube is pulled to drive the telescopic sliding clamp to be compressed in the telescopic channel of the sleeve; The rear end of the sleeve is provided with an annular boss and an externally threaded port structure, the externally threaded port structure is located between the annular boss and the rear end face of the sleeve, and a threaded cap is provided corresponding to the externally threaded port structure, the threaded cap is a double-annular structure, and a taper is provided on the end face of the inner annular structure of the threaded cap. When the threaded cap is screwed into the externally threaded port structure, the end face of the inner annular structure of the threaded cap is pressed and fitted on the limiting rubber block, so that the limiting rubber block tightly wraps and fixes the pull tube.

3. The hysteroscopic telescopic adjustable uterine cavity curette device according to claim 1, characterized in that: The scraper mesh cover is flat, and in a stretched and flat state, the scraper mesh cover is in the shape of a flat tennis racket, with a round front end and a rectangular rear end, and a smooth arc transition between the circle and the rectangle; the scraper blade edge is a ring-shaped closed sheet strip, and the scraper blade edge has elastic deformation characteristics. In the width direction of the blade band, one side of the scraper blade edge is flush with the scraper mesh cover surface, and the other side is an edge higher than the scraper mesh cover surface; a serrated protrusion is provided on the edge of the scraper blade edge higher than the scraper mesh cover.

4. The hysteroscopic telescopic adjustable uterine cavity curette device according to claim 1, characterized in that: The sliding handle is an overall semicircular arc structure, and a rectangular block-shaped protrusion is arranged in the middle position of the inner side of the sliding handle. The pull core is connected to the front end cross section of the block-shaped protrusion, and both ends of the arc of the sliding handle each have an edge extending vertically toward the center of the arc. The block-shaped protrusion in the middle of the inner side of the sliding handle and the edges at both ends of the arc together constitute the sliding bar structure of the sliding handle, and the sliding bar structure is slidably arranged in the sliding groove.

5. The hysteroscopic telescopic adjustable uterine cavity curette device according to claim 1, characterized in that: The front end of the pull tube is provided with a conical structure, which is composed of three evenly distributed fan-shaped cones, with a hollow center and gaps between the fan-shaped cones. The conical structure is connected to the pull tube through a journal structure.

6. The hysteroscopic telescopic adjustable uterine cavity curette device according to claim 1, characterized in that: The rear end of the pull tube is connected with a pull ring.

7. The hysteroscopic telescopic and adjustable uterine cavity curette device according to claim 2, characterized in that: An annular marking ring is arranged at the front end of the sleeve, and a pair of anti-wear rollers are arranged at the inner side of the front end of the sleeve close to the front end surface, and are respectively arranged at the upper and lower positions of the telescopic channel.

8. The hysteroscopic telescopic and adjustable uterine cavity curette device according to claim 1, characterized in that: The scraper mesh cover is a spherical bulging mesh cover.

9. The hysteroscopic telescopic and adjustable uterine cavity curette device according to claim 1, characterized in that: One of the scraper blade edges is a cutting edge type, and the other scraper blade edge is a sawtooth type.

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