Uterus scraper with temporary storage function

By designing a sealing spatula and a storage cavity on the uterine curette, combined with the sliding design of the piston and curette components, the problem of tissue falling off during scraping is solved, achieving efficient temporary storage and retrieval of tissue, thus improving surgical efficiency and safety.

CN223504308UActive Publication Date: 2025-11-04KELIHUIER MEDICAL TECHNOLOGY (WUHAN) CO LTD
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Patent Information

Application Number
CN202422423793.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-11-04
Estimated Expiration
2034-10-09

AI Technical Summary

Technical Problem

When using existing uterine curettes to remove residual tissue in the uterus, the scraped tissue is prone to falling off the curette head, making removal inconvenient and affecting surgical efficiency and safety.

Method used

The uterine curette is designed with a sealing spatula and a storage cavity. The sealing spatula receives the scraped tissue, and the piston and storage cavity provide temporary storage. The design of the sliding and bending rod of the curette facilitates the removal of the tissue.

Benefits of technology

It effectively prevents tissue detachment, improves surgical efficiency and safety, reduces the frequency of instrument replacement and cleaning, and enhances the flexibility and controllability of the operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a uterus scraper with a temporary storage function, which comprises a tube body, a storage cavity is arranged in the tube body, a slidable curette part is arranged on the outer wall of the tube body, a sealing curette head is arranged at the port of the tube body and on one side close to the inlet of the storage cavity, and a piston part is arranged in the storage cavity. By designing the sealed curette head, substances scraped by the curette piece on the inner wall of the uterus can be effectively received, and residual tissues are prevented from easily falling off from the curette head; by designing the tube body with the storage cavity and matching the tube body with the piston piece, if a large amount of residual tissues are scraped, the tissues falling into the sealing curette head can be pushed into the inlet of the storage cavity through the movable curette piece; the arc-shaped push rod is pulled to drive the piston plate to move, tissue can be sucked into the storage cavity under the action of negative pressure, the temporary storage effect is achieved, scraped tissue can be taken out easily, and the requirement for frequently replacing instruments or cleaning scraped objects in the operation process is avoided.
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Description

Technical Field

[0001] This utility model belongs to the field of uterine curettage technology, and in particular relates to a uterine curettage with temporary storage function. Background Technology

[0002] A uterine curette, also known as a uterine scraper, is a commonly used instrument in obstetrics and gynecology surgeries. It is used to scrape away the uterine lining or perform endometrial biopsies. A uterine curette typically consists of a curette head, a curette neck, and a curette handle, and is generally made of stainless steel. This design allows it to effectively scrape away the endometrium during surgery. In some cases, such as ectopic pregnancy or incomplete abortion, the uterine curette can remove residual tissue from the uterus to prevent infection and other complications. The uterine curette plays an important role in gynecological diagnosis. Doctors can use it to obtain endometrial tissue samples for pathological examination to determine the presence of diseases such as endometriosis, endometrial hyperplasia, and endometrial cancer. This is crucial for the early detection and treatment of gynecological diseases.

[0003] Currently, the uterine curettage blades on the market have a relatively simple structure, usually consisting of a one-piece curette head, curette neck, and curette handle. The curette handle is easy to hold. By inserting the curette head into the uterus and moving the handle to move the curette head, residual endometrial tissue can be scraped away. However, the curette head is usually hollow in the middle. Therefore, when scraping away a lot of residual tissue in the uterus, the residual tissue is easy to fall off the curette head, making it difficult to remove. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a uterine curette with a temporary storage function.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a uterine curette with temporary storage function, comprising a tube body, a storage cavity inside the tube body, a slidable curette on the outer wall of the tube body, a sealing curette at the end of the tube body and on the side near the inlet of the storage cavity, and a piston inside the storage cavity.

[0006] By designing a sealing spatula, the material scraped from the uterine wall by the curette can be effectively received, preventing residual tissue from easily falling off the curette. Furthermore, by designing a tube with a storage cavity and a piston, the uterine scraping material is temporarily stored, which facilitates the removal of scraped tissue. At the same time, it avoids the need for frequent instrument changes or cleaning of scraping material during the operation, thus improving the efficiency and safety of the operation.

[0007] Furthermore, the scraper component includes a scraper head located above the sealing spoon head, and both ends of the interface of the scraper head are provided with sliders that are slidably connected to the tube body. A pull rod is connected to the side of the slider away from the scraper head, and a bending rod is connected to the side of the pull rod away from the slider.

[0008] The design of the curette, especially the combination of the curette head, slider, pull rod, and bending rod, allows the curette to slide flexibly within the tube, making it easier for doctors to adjust the position of the curette head as needed during surgery, thus increasing the flexibility and precision of the operation.

[0009] Furthermore, a groove is provided on the side wall of the tube body near the end of the sealing key, and the slider is located inside the groove.

[0010] The groove design provides a stable sliding track for the slider, ensuring smooth movement of the curette within the tube, reducing resistance during operation, and improving the smoothness of the surgical procedure.

[0011] Furthermore, the side wall of the tube body is provided with a groove that communicates with the slide groove, and both the pull rod and the bending rod are located inside the groove, with one end of the bending rod extending to the outside of the groove.

[0012] The grooved design allows the pull rod and bending rod to extend smoothly from the tube, making it easier for doctors to control the curette from the outside. At the same time, the bending rod design makes it easier for doctors to operate, improving the convenience of surgical procedures.

[0013] Furthermore, the surface of the tube is covered with an anti-detachment sleeve that partially covers the groove. The anti-detachment sleeve design prevents the pull rod and bending rod from accidentally dislodging during surgery, increasing surgical safety and protecting patient safety.

[0014] Furthermore, a handle sleeve is provided on the outer side of the tube body away from the sealing key, and the edge of the handle sleeve near the sealing key end has a beveled transition. The design of the handle sleeve improves the doctor's comfort in holding the tube body, reduces hand fatigue during long surgeries, and the beveled transition design makes the handle sleeve fit the contour of the hand better, improving the stability of the grip.

[0015] Furthermore, the piston assembly includes a piston plate disposed inside the storage cavity, the piston plate being adapted to the inner wall of the storage cavity, and a push-pull rod connected to the side of the piston plate away from the sealing key head, the end of the push-pull rod away from the piston plate extending to the outside of the tube. The design of the piston assembly, especially the combination of the piston plate and the push-pull rod, allows the surgeon to easily control the opening and closing of the storage cavity, thereby controlling the entry and exit of the scraping material and improving the controllability and efficiency of the surgery.

[0016] Furthermore, an arc-shaped push rod is provided at one end of the push-pull rod located outside the tube body. The arc-shaped push rod design makes it easier for doctors to push the push-pull rod, improving the convenience of operation and also increasing the comfort of holding it.

[0017] Furthermore, the curette head, when viewed from above, has a hollow, gourd-shaped structure, and the curette head contacts the opening of the sealing curette head. This gourd-shaped curette head design allows for more even scraping and reduces the risk of damaging the uterine wall. Simultaneously, its contact with the opening of the sealing curette head ensures that the scraped material can smoothly enter the storage cavity, improving the surgical outcome.

[0018] Furthermore, the pull rod and the bending rod are an integral structure, forming an "L"-shaped rod. This integrated design not only simplifies the structure but also improves the overall strength and stability, reduces loosening and wear between components, and extends the service life of the instrument.

[0019] Compared with the prior art, the beneficial effects of this utility model are: 1. By designing a sealing spatula, the material scraped by the curette on the uterine wall can be effectively received, preventing residual tissue from easily falling off the curette; 2. By designing a tube with a storage cavity and a piston, if a large amount of residual tissue is scraped off, the movable curette can push the tissue that has fallen into the sealing spatula into the inlet of the storage cavity. By pulling the arc-shaped push rod to move the piston plate, the tissue can be sucked into the storage cavity under negative pressure, achieving a temporary storage effect. This facilitates the removal of scraped tissue and avoids the need for frequent instrument changes or cleaning of scraped material during the operation, thus improving surgical efficiency and safety. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the overall structure of the uterine curette of this utility model;

[0021] Figure 2 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0022] Figure 3 This is a partial perspective view of the structural tube body of this utility model;

[0023] Figure 4 This is a perspective view of the scraper component of this utility model.

[0024] In the diagram: 1. Tube body; 2. Storage cavity; 3. Handle sleeve; 4. Push-pull rod; 5. Arc-shaped push rod; 6. Scraper piece; 601. Scraper head; 602. Slider; 603. Pull rod; 604. Bending rod; 7. Sealing spoon head; 8. Slide groove; 9. Pull groove; 10. Piston plate. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] like Figure 1 As shown in Figure 4, the specific solution of the embodiment is as follows: A uterine curette with temporary storage function includes a tube body 1, a storage cavity 2 is provided inside the tube body 1, a slidable curette 6 is provided on the outer wall of the tube body 1, a sealing curette 7 is provided at the port of the tube body 1 and on the side near the inlet of the storage cavity 2, and a piston is provided inside the storage cavity 2.

[0028] A storage cavity 2 is provided inside the tube body 1 to temporarily store residual tissue scraped from the uterus. The tube body 1 forms a neck structure to facilitate the insertion of the curette 6 into the uterus. When the curette 6 scrapes off residual tissue, the tissue will remain in the curette head 601, and the sealing curette head 7 will catch the scraped tissue to prevent it from falling out.

[0029] By designing a sealing spatula 7, the material scraped from the uterine wall by the curette 6 can be effectively received, preventing residual tissue from easily falling off the curette 601. Furthermore, by designing a tube 1 with a storage cavity 2 and a piston, the temporary storage function of the uterine scraping material is realized, which is conducive to the removal of scraped tissue. At the same time, it avoids the need for frequent instrument changes or cleaning of scraping material during the operation, thus improving the efficiency and safety of the operation.

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, the scraper component 6 includes a scraper head 601 located above the sealing spoon head 7. Both ends of the interface of the scraper head 601 are provided with sliders 602 that are slidably connected to the tube body 1. A pull rod 603 is connected to the side of the slider 602 away from the scraper head 601, and a bending rod 604 is connected to the side of the pull rod 603 away from the slider 602.

[0031] The curette 6 is used to scrape away residual tissue from the uterine wall. Since the slider 602 is slidably connected inside the groove 8, the curette head 601 can move horizontally. By pulling the bent rod 604, the pull rod 603 can be moved, thereby causing the pull rod 603 to move the slider 602 within the groove 8, which allows the curette head 601 to move forward or backward, thus pushing the accumulated tissue inside to the entrance of the storage cavity 2.

[0032] In this embodiment, the design of the curette 6, especially the combination of the curette head 601, the slider 602, the pull rod 603 and the bending rod 604, allows the curette 6 to slide flexibly within the tube 1, making it easier for the doctor to adjust the position of the curette head 601 as needed during the operation, thus increasing the flexibility and accuracy of the operation.

[0033] like Figure 2 As shown, a groove 8 is formed on the side wall of the tube body 1 near the sealing key head 7, and the slider 602 is located inside the groove 8. It should be noted that there are grooves 8 on both sides of the tube body 1.

[0034] In this embodiment, the design of the groove 8 provides a stable sliding track for the slider 602, ensuring the smooth movement of the scraper 6 within the tube 1, reducing resistance during operation, and improving the smoothness of the surgical operation.

[0035] like Figure 1-2 As shown, a groove 9 communicating with the slide groove 8 is provided on the side wall of the tube body 1. The pull rod 603 and the bending rod 604 are both located inside the groove 9, and one end of the bending rod 604 extends to the outside of the groove 9.

[0036] In this embodiment, the design of the groove 9 allows the pull rod 603 and the bending rod 604 to extend smoothly from the tube body 1, making it easier for the doctor to control the curette 6 from the outside. At the same time, the design of the bending rod 604 makes it easier for the doctor to operate, improving the convenience of the surgical operation.

[0037] The tube body 1 is covered with an anti-detachment sleeve that partially covers the groove 9. The anti-detachment sleeve design prevents the pull rod 603 and bending rod 604 from accidentally dislodging during the operation, increasing the safety of the operation and protecting the patient's safety.

[0038] In this embodiment, a handle sleeve 3 is provided on the outer side of the tube body 1 away from the sealing spoon 7. The handle sleeve 3 may be made of silicone, and the edge of the handle sleeve 3 near the sealing spoon 7 has a beveled transition. The design of the handle sleeve 3 improves the comfort of the doctor holding the tube body 1, reduces hand fatigue during long-term surgery, and the beveled transition design makes the handle sleeve 3 fit the contour of the hand better, improving the stability of the grip.

[0039] like Figure 1-2As shown, the piston assembly includes a piston plate 10 disposed inside the storage cavity 2. The piston plate 10 is adapted to the inner wall of the storage cavity 2. A piston rod 4 is connected to the side of the piston plate 10 away from the sealing key head 7. The end of the piston rod 4 away from the piston plate 10 extends to the outside of the tube body 1. The design of the piston assembly, especially the combination of the piston plate 10 and the piston rod 4, allows the surgeon to easily control the opening and closing of the storage cavity 2, thereby controlling the entry and exit of the scraping material and improving the controllability and efficiency of the surgery.

[0040] When the piston plate 10 is pulled and moved away from the entrance in the storage cavity 2, a negative pressure is created, which draws the tissue pushed to the entrance into the storage cavity 2, serving as a temporary storage for the tissue. If the tissue in the tube 1 needs to be processed later, the arc-shaped push rod 5 can be pushed to move the piston plate 10 towards the tissue, thereby pushing the tissue out of the storage cavity 2 and removing the tissue.

[0041] like Figure 4 As shown, an arc-shaped push rod 5 is provided at one end of the piston rod 4 located outside the tube body 1. The design of the arc-shaped push rod 5 makes it easier for the doctor to push the piston rod 4, improving the convenience of operation and also increasing the comfort of holding it.

[0042] like Figure 1 , Figure 4 As shown, the scraper head 601 has a hollow "gourd" shape when viewed from above, and the scraper head 601 is in contact with the opening of the sealing spoon head 7.

[0043] Because the inside of the curette head 601 is hollow, the scraped tissue will remain in the middle of the curette head 601, and the edge of the curette head 601 has an inward concave structure, which can better scrape away the material on the uterine wall.

[0044] The gourd-shaped curette head 601 design makes scraping more even and less likely to damage the uterine wall. At the same time, it contacts the opening of the sealing curette head 7, ensuring that the scraped material can smoothly enter the storage cavity 2, thus improving the surgical outcome.

[0045] The pull rod 603 and the bending rod 604 are integrated into a single structure, forming an "L"-shaped rod. This integrated design not only simplifies the structure but also improves the overall strength and stability, reduces loosening and wear between components, and extends the service life of the instrument.

[0046] The working principle of the above embodiment is as follows: When in use, hold the handle sleeve 3 and press one finger against the bent rod 604 to insert the scraper 6 into the uterus. By moving the tube body 1, the scraper 6 can be moved along the uterine wall to scrape away residual tissue. The sealing spoon head 7 will catch the scraped tissue to prevent it from falling out. If a large amount of residual tissue remains in the sealing spoon head 7, the bent rod 604 can be pulled to move the scraper head 601 along the surface of the sealing spoon head 7 to catch any tissue that falls into the sealing spoon head 7. The tissue is pushed into the inlet of the storage cavity 2, and then the arc-shaped push rod 5 is pulled to move the piston rod 4, so that the piston plate 10 slides a certain distance in the storage cavity 2. Under the action of negative pressure, the tissue accumulated at the inlet is sucked into the storage cavity 2, which has a temporary storage effect. After that, the bent rod 604 can be pushed to move the scraper head 601 back to its original position, which is convenient for scraping again. Increasing the amount scraped at one time can reduce the number of times the scraper enters and exits the uterus, and can also prevent the scraped residual tissue from falling into the uterus.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A uterine curette with a temporary storage function, characterized in that, The device includes a tube body, an internal storage cavity, a slidable scraper on the outer wall of the tube body, a sealing key at the end of the tube body near the inlet of the storage cavity, and a piston inside the storage cavity.

2. The uterine curette with temporary storage function according to claim 1, characterized in that: The scraper includes a scraper head located above the sealing spoon head. Both ends of the scraper head's interface are provided with sliders that are slidably connected to the tube body. A pull rod is connected to the side of the slider away from the scraper head, and a bending rod is connected to the side of the pull rod away from the slider.

3. A uterine curette with temporary storage function according to claim 2, characterized in that: A groove is provided on the side wall of the tube body near the sealing key, and the slider is located inside the groove.

4. A uterine curette with temporary storage function according to claim 3, characterized in that: The side wall of the tube is provided with a groove that communicates with the slide groove. The pull rod and the bending rod are both located inside the groove, and one end of the bending rod extends to the outside of the groove.

5. A uterine curette with temporary storage function according to claim 4, characterized in that: The surface of the tube is covered with an anti-detachment sleeve that partially covers the groove.

6. A uterine curette with temporary storage function according to claim 1, characterized in that: A handle sleeve is provided on the outside of the tube body at the end away from the sealing key, and the edge of the handle sleeve near the end of the sealing key has a beveled transition.

7. A uterine curette with temporary storage function according to claim 2, characterized in that: The piston assembly includes a piston plate disposed inside the storage cavity, the piston plate being adapted to the inner wall of the storage cavity, a piston rod being connected to the side of the piston plate away from the sealing key, and the end of the piston rod away from the piston plate extending to the outside of the tube.

8. A uterine curette with temporary storage function according to claim 7, characterized in that: An arc-shaped push rod is provided at one end of the piston rod located outside the tube body.

9. A uterine curette with temporary storage function according to claim 2, characterized in that: The scraper head, when viewed from above, has a hollow "gourd" shape, and the scraper head is in contact with the opening of the sealing spoon head.

10. A uterine curette with temporary storage function according to claim 2, characterized in that: The pull rod and the bending rod are an integral structure, and the pull rod and the bending rod are integrally formed into an "L" shaped rod.