Disposable telescopic uterine cavity suction tube

Abstract

The utility model provides a disposable telescopic uterine cavity suction tube which comprises a handle, a suction tube body and a locking ring and further comprises a sealing cover arranged at the tail end of the locking ring and sealing rings arranged at the connecting positions of all the components, and the suction tube body comprises a connecting end and a suction end which are integrally formed. A curvature of 10-30 degrees is formed between the suction end and the connecting end, and a suction opening is formed in the suction end; the installation part of the connecting end of the suction tube in the handle can be adjusted in a sliding mode and is fixed through a locking ring, two protrusions are arranged on the side wall of the end portion of the connecting end of the suction tube, and two sliding grooves corresponding to the protrusions are formed in the handle. Certain curvature is formed between the leading end and the connecting end, so that a doctor can suck a gestational sac more conveniently, and damage caused by the fact that the suction tube sucks the bottom of the uterus is prevented. In an actual operation, the connecting depth of the suction tube and the handle is adjusted according to needs, and the suction tube and the handle are fastened through the locking ring, so that the length of the whole tool is adjusted.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a disposable telescopic uterine aspiration tube. Background Technology

[0002] A hysteroscopic aspiration tube is a medical device used for procedures such as suctioning the uterine cavity or intrauterine space to remove foreign bodies, secretions, or blood clots. It is typically made of a soft, tubular tube, with one end connected to a suction device and the other end inserted into the uterine cavity. Before using a hysteroscopic aspiration tube, medical personnel must first disinfect the woman's vagina, then slowly insert the tube into the uterine cavity and use the suction device to perform the suction operation. The use of a hysteroscopic aspiration tube can help remove accumulated secretions from the uterine cavity, effectively preventing or treating diseases such as intrauterine infection, endometriosis, and endometritis. It can also be used in gynecological surgeries, such as abortion procedures and myomectomy, to help remove blood clots and other tissues from the uterine cavity during surgery.

[0003] Currently, most suction tubes on the market are one-piece molded structures, and the length of the tube cannot be freely adjusted according to actual needs.

[0004] Chinese utility model patent CN204485018U, published on July 22, 2015, discloses a retractable medical suction tube, including a handle and a drainage catheter connected to the handle. One end of the handle has a hose connector, and the lower part of the other end has an adjustment hole. A through hole is opened in the middle of the handle along its axial direction, which passes through the hose connector and the adjustment hole. Multiple anti-slip protrusions protrude from the outer wall of the handle, spaced apart, and each protrusion extends along the length of the handle and is located between the hose connector and the adjustment hole. Although this utility model allows the length of the suction tube to be adjusted by inserting and removing the drainage catheter inside the handle, it still has shortcomings: It lacks a locking structure, making it easy for the drainage catheter to accidentally extend or retract during use, or even detach from the handle, causing inconvenience to medical personnel. The small orifice is also prone to blockage by pregnancy tissue during suction. Utility Model Content

[0005] This invention proposes a disposable telescopic uterine aspiration tube, the length of which can be adjusted according to actual needs, and the suction tube at the front end is bent.

[0006] The technical solution of this utility model is implemented as follows: a disposable telescopic uterine aspiration tube includes a handle, an aspiration tube, and a locking ring, and also includes a cap set at the end of the locking ring, and sealing rings set at the connection of each component. The aspiration tube includes an integrally formed connecting end and an aspiration end. The aspiration end and the connecting end have a curvature of 10-30°, and the aspiration end has an aspiration port. The installation part of the connecting end of the aspiration tube in the handle is slidably adjustable and fixed by the locking ring. The side wall of the end of the connecting end of the aspiration tube is provided with two protrusions, and the handle is provided with two sliding grooves corresponding to the protrusions.

[0007] Preferably, the handle includes a connector for connecting to an external negative pressure source, a gripping part for gripping operation, a connecting part for fastening to a locking ring, and an opening for clamping and limiting the suction tube. The connector, gripping part, connecting part, and opening are arranged sequentially and integrally formed. The four parts are coaxially arranged and have a through hole that runs through the entire handle.

[0008] Preferably, the connecting end of the suction tube is inserted into the through hole of the handle, the two protrusions correspond to the sliding groove of the handle, and the suction tube is fixed by connecting the handle with a locking ring.

[0009] Preferably, the groove of the handle extends from the opening to the connecting part and the gripping part, and the gripping part is a hollow cylindrical structure with grooves on its outer wall for easy gripping.

[0010] Preferably, the connecting part is a cylindrical structure with threads on the outer wall, with the gripping part and the opening part connected to its two ends respectively, and its outer diameter is smaller than the outer diameter of the gripping part.

[0011] Preferably, the opening is two strip-shaped clips with an arc-shaped cross-section, and there is a gap between the two strip-shaped clips for the protrusion to pass through. The two gaps are the grooves of the opening and correspond one-to-one with the two grooves of the connecting part and the gripping part.

[0012] Preferably, an annular groove is provided at the connection between the opening and the connecting part, and a retaining ring for locking the position of the straw is provided on the groove.

[0013] Preferably, the outer wall of the connection between the handle and the locking ring is provided with an external thread, the corresponding position of the locking ring is provided with a matching internal thread, and a cap is provided at the end of the locking ring away from the handle.

[0014] Preferably, the sealing ring includes a gasket and a washer, the gasket being sleeved on the connecting part of the handle and contacting the end of the locking ring; the washer being disposed between the locking ring and the cover.

[0015] Preferably, the suction end of the suction tube has a curvature of 20°, the suction port is located on the inner side of the curvature of the suction end, and the protrusion is an flared opening formed by blow molding in one piece with the suction end, with the two protrusions arranged symmetrically.

[0016] Compared with existing technologies, the advantages of this invention are as follows: the guide end and the connecting end have a certain degree of curvature, which makes it easier for doctors to aspirate the gestational sac and prevents the suction tube from being drawn to the bottom of the uterus, thus avoiding damage. In actual surgery, the connection depth between the suction tube and the handle can be adjusted as needed and secured with a locking ring, thereby adjusting the length of the entire tool; and sealing rings are set at the connection points of each component to ensure the sealing of the suction device and ensure the safety and stability of the surgery. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the handle and locking ring of this utility model.

[0019] Figure 3 This is an overall structural diagram of the handle portion of this utility model;

[0020] Figure 4 This is a cross-sectional view of the handle portion of this utility model;

[0021] Figure 5 This is a schematic diagram of the straw portion of this utility model;

[0022] Figure 6 This is a schematic diagram of the flared part of the straw of this utility model;

[0023] Figure 7 This is a schematic diagram of the retaining ring part of this utility model.

[0024] In the diagram: 1. Handle; 2. Straw; 3. Locking ring; 4. Cap; 5. Gasket; 6. Washer; 7. Snap ring; 11. Connector; 12. Grip; 13. Connecting part; 14. Opening; 15. Slide; 21. Connecting end; 22. Suction end; 23. Flaring; 24. Suction port. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example: See Figure 1 and Figure 2 A disposable telescopic uterine aspiration tube includes a handle 1, an aspiration tube, and a locking ring 3. It also includes a cap 4 at the end of the locking ring 3 and sealing rings at the joints of the components. The aspiration tube includes an integrally formed connecting end 21 and an aspiration end 22. The aspiration end 22 and the connecting end 21 have a curvature of 10-30°, and the aspiration end 22 has an aspiration port 24. The part of the connecting end 21 of the aspiration tube installed in the handle 1 is slidably adjustable and fixed by the locking ring 3. The end side wall of the connecting end 21 of the aspiration tube has two protrusions, and the handle 1 has two grooves 15 corresponding to the protrusions.

[0029] The guide end and the connecting end 21 have a certain degree of curvature, which makes it easier for doctors to aspirate the gestational sac and prevents the suction tube from being drawn into the bottom of the uterus, causing damage. In actual surgery, the connection depth between the suction tube and the handle 1 can be adjusted as needed and secured with the locking ring 3, thereby adjusting the length of the entire tool; and sealing rings are set at the connection points of each component to ensure the airtightness of the suction device and ensure the safety and stability of the surgery.

[0030] Figure 3 and Figure 4In the process, the handle 1 includes a connector 11 for connecting to an external negative pressure source, a gripping part 12 for gripping operation, a connecting part 13 for fastening to the locking ring 3, and an opening 14 for clamping and limiting the suction tube. The connector 11, gripping part 12, connecting part 13 and opening 14 are arranged in sequence and integrally formed. The four parts are coaxially arranged and have a through hole that runs through the entire handle 1.

[0031] The connecting end 21 of the suction tube is inserted into the through hole of the handle 1, the two protrusions correspond to the sliding groove 15 of the handle 1, and the suction tube is fixed by connecting the handle 1 through the locking ring 3.

[0032] The groove 15 of the handle 1 extends from the opening 14 through the connecting part 13 and the gripping part 12. The gripping part 12 is a hollow cylindrical structure with grooves on its outer wall for easy gripping.

[0033] The connecting part 13 is a cylindrical structure with threads on the outer wall, and its two ends are respectively connected to the gripping part 12 and the opening part 14. Its outer diameter is smaller than the outer diameter of the gripping part 12.

[0034] The opening 14 consists of two strip-shaped clips with arc-shaped cross sections. There is a gap between the two strip-shaped clips for the protrusion to pass through. The two gaps are the sliding grooves 15 of the opening 14, and correspond one-to-one with the two sliding grooves 15 of the connecting part 13 and the gripping part 12.

[0035] An annular groove is provided at the connection between the opening 14 and the connecting part 13, and a retaining ring 7 for locking the position of the straw 2 is correspondingly provided on the groove. (Adding retaining ring 7...) Figure 7 The straw 2 is designed to prevent it from coming off the handle 1 when it moves up and down. The retaining ring 7 is made of stainless steel, which not only has a flexible locking function to limit the position of the straw 2, but also prevents rust and contamination.

[0036] The outer wall of the connection part 13 between the handle 1 and the locking ring 3 is provided with an external thread, and the corresponding position of the locking ring 3 is provided with a matching internal thread. A cap 4 is provided at the end of the locking ring 3 away from the handle 1.

[0037] The sealing ring includes a gasket 5 and a washer 6. The gasket 5 is fitted onto the connecting part 13 of the handle 1 and contacts the end of the locking ring 3. The washer 6 is disposed between the locking ring 3 and the cap 4. By adding the gasket 5, the washer 6 and the cap, after the locking ring 3 is locked, the connection between the straw 2 and the handle 1 is leak-proof, and there will be no air or liquid leakage during use.

[0038] The suction end 22 of the suction tube has a curvature of 20°. The suction port 24 is located on the inner side of the curvature of the suction end 22. The protrusion is an flared opening 23 that is blow-molded in one piece with the suction end 22. The two protrusions are symmetrically arranged.

[0039] Product raw material composition: The straw is molded from PC material in one piece, and the suction end 22 at the front of the straw has a curvature of 20° (see details). Figure 1 and Figure 5 Firstly, it makes it easier for doctors to remove the gestational sac during actual operation; secondly, it prevents the suction tube from being drawn to the bottom of the uterus, causing damage.

[0040] Figure 6 In this process upgrade, the protrusion of the connecting end 21 of the straw 2 is a flared opening 23. The flared opening 23 is formed in one piece, eliminating the need for additional components for positioning, reducing manufacturing costs, minimizing gaps between parts, and avoiding unnecessary cleaning dead zones. The protrusion allows the straw 2 to move up and down along the sliding groove 15 inside the handle 1 to adjust its length, while preventing the straw 2 from rotating left and right. The flared opening 23 is the bottom end of the suction straw 2, and it is blow-molded into the shape of the straw 2 in one piece. Working in conjunction with the sliding groove 15 inside the handle 1, the sliding groove 15 can hold the protruding part at the bottom of the straw 2, allowing the straw 2 to move only up and down when adjusting its length, preventing it from rotating left and right.

[0041] Explanation of the flared opening 23: 1. Its main function is to prevent the straw 2 from rotating left and right during use. 2. It is molded together with the straw 2 in one piece during manufacturing, not added on later.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A disposable telescopic uterine aspiration tube, comprising a handle, a suction tube, and a locking ring, characterized in that: It also includes a cap at the end of the locking ring, and sealing rings at the joints of the components. The suction tube includes an integrally formed connecting end and a suction end, the suction end and the connecting end having a curvature of 10-30°, and the suction end having a suction port. The connection end of the suction tube is slidably adjustable in the mounting part inside the handle and is fixed by a locking ring. The end wall of the connection end of the suction tube has two protrusions, and the handle has two grooves corresponding to the protrusions.

2. The disposable telescopic uterine aspiration tube according to claim 1, characterized in that: The handle includes a connector for connecting to an external negative pressure source, a gripping part for gripping operation, a connecting part for fastening to a locking ring, and an opening for clamping and limiting the suction tube. The connector, gripping part, connecting part, and opening are arranged sequentially and integrally formed. The four parts are coaxially arranged and have a through hole that runs through the entire handle.

3. The disposable telescopic uterine aspiration tube according to claim 2, characterized in that: The connecting end of the suction tube is inserted into the through hole of the handle, the two protrusions correspond to the sliding groove of the handle, and the suction tube is fixed by connecting the handle through the locking ring.

4. The disposable telescopic uterine aspiration tube according to claim 3, characterized in that: The handle has a groove that extends from the opening to the connecting part and the gripping part. The gripping part is a hollow cylindrical structure with grooves on its outer wall for easy gripping.

5. The disposable telescopic uterine aspiration tube according to claim 4, characterized in that: The connecting part is a cylindrical structure with threads on the outer wall, with the gripping part and the opening part connected to its two ends respectively, and its outer diameter is smaller than the outer diameter of the gripping part.

6. The disposable telescopic uterine aspiration tube according to claim 5, characterized in that: The opening consists of two strip-shaped clips with arc-shaped cross-sections. There is a gap between the two strip-shaped clips for the protrusion to pass through, and the two gaps are the sliding grooves of the opening, which correspond one-to-one with the two sliding grooves of the connecting part and the gripping part.

7. The disposable telescopic uterine aspiration tube according to claim 6, characterized in that: An annular groove is provided at the connection between the opening and the connecting part, and a retaining ring is provided on the groove to lock the position of the straw.

8. The disposable telescopic uterine aspiration tube according to claim 7, characterized in that: The outer wall of the connection between the handle and the locking ring is provided with an external thread, and the corresponding position of the locking ring is provided with a matching internal thread. A cap is provided at the end of the locking ring away from the handle.

9. The disposable telescopic uterine aspiration tube according to claim 8, characterized in that: The sealing ring includes a gasket and a washer. The gasket is fitted onto the connecting part of the handle and contacts the end of the locking ring. The washer is disposed between the locking ring and the cover.

10. The disposable telescopic uterine aspiration tube according to any one of claims 1-9, characterized in that: The suction end of the suction tube has a curvature of 20°, and the suction port is located on the inner side of the curvature of the suction end. The protrusion is an flared opening formed by blow molding in one piece with the suction end, and the two protrusions are symmetrically arranged.

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