An indwelling cervical dilation balloon catheter

Abstract

The present invention discloses a retentive cervical dilation balloon catheter, belonging to the technical field of medical devices. The key points of its technical solution are as follows: It includes a handle, and a connection assembly is arranged inside the handle. One end of the connection assembly is connected to a filling assembly, and the other side is connected to a one-way valve. The one-way valve is externally connected to a pressurization system. The handle includes a first fixing area, a storage area, and a second fixing area. A handheld part is arranged between the storage area and the second fixing area. The second fixing area is connected to the one-way valve. The pressurization system injects a medium through the one-way valve, and the medium enters the filling assembly through the connection assembly to dilate the patient's cervix. This solution can be disassembled and assembled quickly, improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a retainable cervical dilation balloon catheter. Background Art

[0002] In the medical field, cervical dilation is a common operation in gynecological surgeries and examinations, such as induced abortion, intrauterine device removal, intrauterine device insertion, hysteroscopy examination, and cervical preparation before childbirth. With the progress of science and technology, disposable cervical dilation balloon catheters are used for cervical dilation operations, which expand the cervix by inflating the balloon. However, the existing disposable cervical dilation balloon catheters have many small components during assembly, making assembly inconvenient and prone to missing parts, resulting in slower production efficiency. Moreover, disassembly and assembly are inconvenient during quality inspection, greatly affecting the production progress. In view of this, a retainable cervical dilation balloon catheter is proposed. Summary of the Invention

[0003] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a retainable cervical dilation balloon catheter that can be quickly disassembled and assembled to improve production efficiency.

[0004] The above technical objective of the present invention is achieved through the following technical solutions: A retainable cervical dilation balloon catheter includes a handle. One side of the handle is not closed. A connection component is arranged inside the handle. One end of the connection component is connected to a filling component, and the other side is connected to a one-way valve. The one-way valve is externally connected to a pressurization system. The handle includes a first fixing area, a storage area, and a second fixing area. A hand-held part is arranged between the storage area and the second fixing area. The second fixing area is connected to the one-way valve. The pressurization system fills the medium through the one-way valve, and the medium enters the filling component through the connection component to dilate the cervix of the patient.

[0005] In some embodiments, the diameter of the hand-held part is smaller than that of the second fixing area, and the outer surface of the hand-held part is arc-shaped.

[0006] In some embodiments, the one-way valve includes a first connection part, an input port, and an output port. A snap ring is arranged between the first connection part and the input port.

[0007] In some embodiments, chamfered slopes are arranged on both sides of the snap ring.

[0008] In some embodiments, the connection component includes a connection hose. One end of the connection hose is sleeved with the one-way valve, and the other end is sleeved with a connector. The end of the connector is connected to a fixed head.

[0009] In some embodiments, the connecting hose includes a straight pipe. One end of the straight pipe is connected to a first tapered pipe, and the end of the first tapered pipe is connected to a first cylindrical pipe. The other end of the straight pipe is connected to a second tapered pipe, and the end of the second tapered pipe is connected to a second cylindrical pipe. The first tapered pipe and the first cylindrical pipe are connected to the one-way valve, and the second tapered pipe and the second cylindrical pipe are connected to the connecting member. A convex ring is provided between the first tapered pipe and the first cylindrical pipe and between the second tapered pipe and the second cylindrical pipe.

[0010] In some embodiments, the connecting member includes a second connecting portion. A threaded portion is provided at one end of the second connecting portion close to the fixed head. A positioning ring is provided between the second connecting portion and the threaded portion, and the threaded portion is threadedly connected to the fixed head.

[0011] In some embodiments, a positioning buckle is provided at a position close to the middle of the straight pipe, and a card slot is provided on the positioning buckle.

[0012] In some embodiments, the filling assembly includes a filling guide rod. The filling guide rod is connected to the connecting assembly. A balloon is sleeved on the filling guide rod. A covering ring is provided at one end of the filling guide rod close to the connecting assembly, and a through hole is provided on the filling guide rod at the position of the covering ring.

[0013] In summary, the present invention has the following beneficial effects:

[0014] The present invention is provided with a connecting assembly. The one-way valve and the connecting member are stably connected through the connecting hose of the connecting assembly. The connecting member of the connecting assembly is quickly connected to the fixed head, and the first cylindrical pipe and the second cylindrical pipe of the connecting hose are completely attached to the one-way valve and the connecting member, improving the overall sealing performance. At the same time, it can be quickly installed and fixed in the handle and can be quickly removed from the handle when quality inspection and retention are required, accelerating the production progress and improving the operation rate. At the same time, the fixed head prevents the device from extending too far and sliding into the body to cause damage to the uterus. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is an exploded view of the overall structure of the present invention;

[0017] Figure 3 is a schematic diagram of the overall structure of a part of the present invention;

[0018] Figure 4 is a cross-sectional view of the overall structure of the fixed head of the present invention;

[0019] Figure 5This is a schematic diagram of the retention state part of the present invention.

[0020] In the figure: 1. Handle; 11. First fixing area; 12. Storage area; 13. Second fixing area; 14. Handheld part; 2. Check valve; 21. First connecting part; 22. Input port; 23. Output port; 24. Snap ring; 3. Connection assembly; 31. Connection hose; 311. Straight pipe; 312. First conical pipe; 313. First cylindrical pipe; 314. Second conical pipe; 315. Second cylindrical pipe; 316. Positioning buckle; 32. Connector; 321. Second connecting part; 322. Threaded part; 323. Positioning ring; 33. Fixed head; 4. Filling assembly; 41. Filling guide rod; 42. Balloon; 43. Covering ring; 44. Through hole. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] See Figures 1 - 5 , a retainable cervical dilation balloon catheter, including a handle 1, one side of the handle 1 is not closed, a connection assembly 3 is arranged inside the handle 1, one end of the connection assembly 3 is connected to a filling assembly 4, the other side is connected to a check valve 2, the check valve 2 is externally connected to a pressurization system, the handle 1 includes a first fixing area 11, a storage area 12 and a second fixing area 13, a handheld part 14 is arranged between the storage area 12 and the second fixing area 13, the second fixing area 13 is connected to the check valve 2, the pressurization system flushes the medium through the check valve 2, and the medium enters the filling assembly 4 through the connection assembly 3 to dilate the patient's cervix.

[0023] In some embodiments, the diameter of the handheld part 14 is smaller than that of the second fixing area 13, and the outer surface of the handheld part 14 is arc-shaped.

[0024] In some embodiments, the check valve 2 includes a first connecting part 21, an input port 22 and an output port 23, and a snap ring 24 is fixedly connected between the first connecting part 21 and the input port 22.

[0025] In some embodiments, chamfered slopes are arranged on both sides of the snap ring 24.

[0026] In some embodiments, the connection assembly 3 includes a connection hose 31, one end of the connection hose 31 is sleeved with the check valve 2, the other end is sleeved with a connector 32, and the end of the connector 32 is connected to a fixed head 33.

[0027] In some embodiments, the connecting hose 31 includes a straight pipe 311. One end of the straight pipe 311 is connected to a first tapered pipe 312. The end of the first tapered pipe 312 is connected to a first cylindrical pipe 313. The other end of the straight pipe 311 is connected to a second tapered pipe 314. The end of the second tapered pipe 314 is connected to a second cylindrical pipe 315. The first tapered pipe 312 and the first cylindrical pipe 313 are connected to the one-way valve 2. The second tapered pipe 314 and the second cylindrical pipe 315 are connected to the connector 32. A convex ring is provided between the first tapered pipe 312 and the first cylindrical pipe 313 and between the second tapered pipe 314 and the second cylindrical pipe 315.

[0028] In some embodiments, the connector 32 includes a second connecting portion 321. A threaded portion 322 is provided at one end of the second connecting portion 321 close to the fixed head 33. A positioning ring 323 is provided between the second connecting portion 321 and the threaded portion 322. The threaded portion 322 is threadedly connected to the fixed head 33.

[0029] In some embodiments, a positioning buckle 316 is provided at a position close to the middle of the straight pipe 311. A card slot is provided on the positioning buckle 316.

[0030] In some embodiments, the filling assembly 4 includes a filling guide rod 41. The filling guide rod 41 is connected to the connecting assembly 3. A balloon 42 is sleeved on the filling guide rod 41. A covering ring 43 is provided at one end of the filling guide rod 41 close to the connecting assembly 3. A through hole 44 is provided on the filling guide rod 41 at the position of the covering ring 43. The covering ring 43 can prevent the through hole 44 from being blocked by impurities.

[0031] Working principle: During assembly, the operator first sleevs the balloon 42 onto the inflation guide rod 41. Then, the operator uses an external power mechanism to push the inflation guide rod 41 with the balloon 42 sleeved thereon into the fixed head 33 for snap connection and fixation. The external power mechanism can be an existing thruster with a pushing function or the like, but is not limited thereto. Subsequently, both ends of the connecting hose 31 are respectively sleeved onto the one-way valve 2 and the connector 32, ensuring that the first cylindrical tube 313 is sleeved onto the first connecting portion 21 of the one-way valve 2, and pulling the end of the first cylindrical tube 313 over the snap ring 24, so that the end of the first cylindrical tube 313 is caught by the snap ring 24 and fits to improve the socket firmness, and ensuring the sealing between the one-way valve 2 and the connecting hose 31. The first conical tube 312 wraps around the outlet 23, and the first conical tube 312 can increase the rate of the one-way valve 2 when inputting the medium, improve the inflation rate of the balloon 42, and speed up the operation progress. The connecting hose 31 and the balloon 42 can be made of silicone material, but are not limited thereto, and both have a certain elasticity. Similarly, the second cylindrical tube 315 at the other end of the connecting hose 31 is sleeved at the second connecting portion 321 of the connector 32, and the end of the second cylindrical tube 315 is pulled over the positioning ring 323 to ensure the sealing and the socket stability. The second conical tube 314 wraps around one end of the connector 32 away from the threaded portion 322. Then, the threaded portion 322 of the connector 32 is screwed and fixed with the fixed head 33, that is, the one-way valve 2 and the inflation assembly 4 are connected through the connecting assembly 3. Finally, the straight tube 311 is placed into the storage area 12. When the straight tube 311 is placed into the storage area 12, since the straight tube 311 is smaller in size than the handle 1, it is difficult for the straight tube 311 to be accurately placed into the storage area 12, and the connector 32 and the one-way valve 2 sleeved at both ends of the straight tube 311 will make the straight tube 311 swing erratically during placement, and it needs to be aligned multiple times to be accurately placed into the storage area 12, which is not easy to operate. The operator pre-fastens the straight tube 311 into the handle 1 through the positioning buckle 316 for positioning, and then snaps the first connecting portion 21 sleeved with the first cylindrical tube 313 into the second fixing area 13, and snaps the second connecting portion 321 sleeved with the second cylindrical tube 315 into the first fixing area 11, so as to achieve fixation, improve the assembly efficiency of the device. The whole operation process is simple and convenient, the overall connection sealing performance is high, the device is easy to disassemble and assemble, and only by unscrewing the connector 32 from the fixed head 33, the sealing performance of the connecting hose 31 can be checked by introducing media such as gas or liquid into the one-way valve 2. It is not only simple to assemble, but also convenient for subsequent quality inspection of the device, improving the production efficiency. During use, the operator holds the handheld portion 14 on the handle 1, and sends the inflation assembly 4 and the connecting assembly 3 into the patient's vagina through the handle 1, so that the fixed head 33 is located at the patient's cervix. The fixed head 33 can prevent the inflation assembly 4 from penetrating too deeply and causing damage to the uterine inner wall, and prevent the device from slipping into the body. Then, the pressurization system is used to introduce media such as gas or liquid into the inflation assembly 4 through the cooperation of the one-way valve 2.The pressurization system can be an existing syringe, but is not limited thereto. The medium enters the balloon 42 through the through hole 44 at the position of the covering ring 43 to expand the cervical orifice, facilitating the doctor's examination. During the examination, if the patient needs to move temporarily, the operator can pull out the one-way valve 2 towards the non-closed side of the handle 1. When pulling out, due to the limitation of the positioning buckle 316, the operator will not cause the straight pipe 311 to bend rapidly with excessive force when pulling out, resulting in the straight pipe 311 driving the connector 32 to skew and causing discomfort to the patient. Then the operator takes away the handle 1, then bends the straight pipe 311 so that the input port 22 of the one-way valve 2 faces the fixed head 33. Subsequently, a part of the straight pipe 311 close to the one-way valve 2 is clamped onto the slot of the positioning buckle 316, as shown in the attachment, Figure 5 As shown. After that, the operator can slowly insert the one-way valve 2 into the patient's vagina by pushing a part of the straight pipe 311 close to the one-way valve 2, realizing indwelling and fixing the one-way valve 2. This not only avoids the shaking of the connector 32, the connecting hose 31, and the part of the one-way valve 2 remaining outside the body and affecting the patient's movement, but also can quickly fix the part connected to the one-way valve 2 by using the slot of the positioning buckle 316. There will be no situation where the connecting hose 31 is bent and then placed in the body, and the connecting hose 31 is reset due to its own elasticity and squeezes the vaginal wall, improving the patient's comfort.

[0032] This specific embodiment is only an interpretation of the present invention and is not a limitation thereof. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. An indwelling cervical dilation balloon catheter, characterized in that: It includes a handle (1), one side of the handle (1) is not closed, a connection component (3) is arranged inside the handle (1), one end of the connection component (3) is connected to a filling component (4), and the other side is connected to a one-way valve (2). The one-way valve (2) is externally connected to a pressurization system. The handle (1) includes a first fixing area (11), a storage area (12), and a second fixing area (13). A hand-held part (14) is arranged between the storage area (12) and the second fixing area (13). The second fixing area (13) is connected to the one-way valve (2). The pressurization system flushes a medium through the one-way valve (2), and the medium enters the filling component (4) through the connection component (3) to make the filling component (4) expand and dilate the patient's cervix. The connection component (3) includes a connection hose (31). One end of the connection hose (31) is sleeved with the one-way valve (2), and the other end is sleeved with a connection piece (32). The end of the connection piece (32) is connected to a fixed head (33). The connection hose (31) includes a straight pipe (311). One end of the straight pipe (311) is connected to a first conical pipe (312). The end of the first conical pipe (312) is connected to a first cylindrical pipe (313). The other end of the straight pipe (311) is connected to a second conical pipe (314). The end of the second conical pipe (314) is connected to a second cylindrical pipe (315). The first conical pipe (312) and the first cylindrical pipe (313) are connected to the one-way valve (2). The second conical pipe (314) and the second cylindrical pipe (315) are connected to the connection piece (32). Convex rings are arranged between the first conical pipe (312) and the first cylindrical pipe (313) and between the second conical pipe (314) and the second cylindrical pipe (315). The connection piece (32) includes a second connection part (321). A threaded part (322) is arranged at one end of the second connection part (321) close to the fixed head (33). A positioning ring (323) is arranged between the second connection part (321) and the threaded part (322). The threaded part (322) is threadedly connected to the fixed head (33). A positioning buckle (316) is arranged at a position close to the middle of the straight pipe (311), and a card slot is opened on the positioning buckle (316).

2. The indwelling cervical dilation balloon catheter according to claim 1, wherein: The diameter of the hand-held part (14) is smaller than that of the second fixing area (13), and the outer surface of the hand-held part (14) is arc-shaped.

3. The indwelling cervical dilation balloon catheter according to claim 1, characterized in that: The one-way valve (2) includes a first connection part (21), an input port (22), and an output port (23). A snap ring (24) is arranged between the first connection part (21) and the input port (22).

4. The indwelling cervical dilation balloon catheter according to claim 3, characterized in that: Bevel chamfers are arranged on both sides of the snap ring (24).

5. A detachable cervical dilation balloon catheter according to claim 1, characterized in that: The filling component (4) includes a filling guide rod (41). The filling guide rod (41) is connected to the connection component (3). A balloon (42) is sleeved on the filling guide rod (41). A covering ring (43) is provided at one end of the filling guide rod (41) close to the connection component (3). A through hole (44) is formed in the filling guide rod (41) at the position of the covering ring (43).

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