Auxiliary cervical dilation device

Abstract

The invention relates to the technical field of medical auxiliary instruments, and discloses a cervix uteri auxiliary dilation device which comprises a vulva dilation catheter, a cervix uteri dilation catheter and a constant-temperature circulation box, a fixing leakage-proof mechanism is detachably connected to the end, located in the vulva dilation catheter, of a circulation water pipe, and the fixing leakage-proof mechanism comprises a fixing ring, a water injection plug and a fixing column. By means of the structure, in the expansion process, circulating liquid can be kept at the constant and proper temperature, the constant-temperature heating rod is fixedly connected to the exterior of the circulating partition plate, the circulating water pump is fixedly connected to the interior of the constant-temperature circulating box, and the pressurizing air pipe is movably connected to the interior of the constant-temperature circulating box. The extending distance of the device is adjusted, and an internal fixed leakage-proof mechanism is matched with a leakage-proof thin film clamping ring, so that in the using process of the device, the situation that body fluid of a patient rushes into the assembly connecting position, and consequently the interior of the device is eroded is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary equipment, and in particular to a cervical auxiliary dilation device. Background Art

[0002] Gynecological abortion, uterine curettage, hysteroscopy and other uterine cavity examinations or surgeries all require cervical dilation before the operation. The degree of cervical dilation required varies depending on the medical procedures performed on the patient, and the cervix is ​​mechanically dilated using different equipment.

[0003] Current cervical dilation assistive devices generally use metal dilating rods or cervical dilation balloons of varying sizes ranging from 4.0 to 10.5 for cervical dilation, but most of these devices require heating before use. If they are cooled during use, it is difficult to maintain the temperature, which is extremely inconvenient. When dealing with different patients, the device needs to be frequently replaced, which can easily cause harm to the patient during the process. The patient's body fluids can easily penetrate into the gaps in the equipment and cause erosion to the inside of the equipment. Therefore, a cervical dilation assistive device is proposed, which has the advantages of being able to keep the circulating fluid at a constant and suitable temperature during the dilation process, being able to adjust the extension distance of the device by cooperating with the endoscopic camera on the top of the device, and being able to prevent the patient's body fluids from flowing into the component connections and causing erosion to the inside of the device during the use of the device through the internal fixed leak-proof mechanism and the leak-proof film clamp. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a cervical auxiliary dilation device, which has the advantages of being able to maintain a constant and suitable temperature of the circulating fluid during the dilation process, being able to adjust the extension distance of the device by cooperating with the endoscopic camera on the top of the device, and preventing the patient's body fluids from flowing into the component connections and causing erosion inside the device during the use of the device through the cooperation of the internal fixed leak-proof mechanism and the leak-proof film clamp.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A cervical auxiliary dilation device comprises a vulvar dilation catheter, a cervical dilation catheter and a constant temperature circulation box, wherein the cervical dilation catheter is movably connected to the inside of the vulvar dilation catheter, the outside of the vulvar dilation catheter is fixedly connected to a vulvar dilation balloon, the outside of the vulvar dilation catheter is fixedly connected to a telescopic motor, the end of the telescopic motor transmission shaft is fixedly connected to a transmission rod, the end of the transmission rod away from the telescopic motor is fixedly connected to a telescopic threaded column, the inside of the vulvar dilation catheter is movably connected to a circulating water pipe, the end of the circulating water pipe located inside the vulvar dilation catheter is detachably connected to a fixed anti-leakage mechanism, the fixed anti-leakage mechanism comprises a fixing ring, a water injection plug and a fixing column, The outside of the cervical dilation catheter is fixedly connected to a cervical dilation balloon, the inside of the cervical dilation catheter is provided with an adjustment groove, the outside of the cervical dilation catheter is provided with a fixing hole, the outside of the cervical dilation catheter is provided with an inner balloon water injection groove, the end of the circulating water pipe away from the water injection plug is fixedly connected to a constant temperature circulation box, the outside of the constant temperature circulation box is movably connected to a sealing cover plate, the outside of the constant temperature circulation box is fixedly connected to a sealing cover plate, the inside of the constant temperature circulation box is fixedly connected to a circulation partition, the outside of the circulation partition is fixedly connected to a constant temperature heating rod, the inside of the constant temperature circulation box is fixedly connected to a circulation water pump, and the inside of the constant temperature circulation box is movably connected to a pressurized air pipe.

[0007] Preferably, the fixed ring is movably connected to the inside of the vulvar dilation catheter, the fixed ring is fixedly connected to the end of the circulating water pipe away from the telescopic motor, the fixed column is fixedly connected to the outside of the fixed ring, there are two fixed columns, and the fixed columns are symmetrically distributed outside the fixed ring, the water injection plug is fixedly connected to the outside of the fixed ring, there are two water injection plugs, and the water injection plugs are symmetrically distributed outside the fixed ring, and the outside of the water injection plug is fixedly connected to one end of the circulating water pipe.

[0008] Preferably, a telescopic switch is provided on the outside of the vulvar dilatation catheter, and a film clamp is detachably connected to the outside of the vulvar dilatation catheter.

[0009] Preferably, an endoscopic camera is provided on the outside of the cervical dilatation catheter, there are two fixing holes, which are symmetrically distributed on the outside of the cervical dilatation catheter, and there are two inner balloon water injection grooves, which are symmetrically distributed on the outside of the cervical dilatation catheter.

[0010] Preferably, there are two circulating water pipes, and an outer balloon water injection tank is provided inside the vulvar dilatation catheter.

[0011] Preferably, the vulvar dilatation catheter is movably connected to a film clamp outside, a leak-proof film is detachably connected inside the film clamp, fixing through holes are symmetrically opened on the leak-proof film outside, and water injection through holes are symmetrically opened on the film clamp.

[0012] Preferably, the circulation partition divides the interior of the constant temperature circulation box into two parts, and the two parts of the interior of the constant temperature circulation box are connected through a circulation water pump.

[0013] Preferably, a pressure relief valve is fixedly connected to the outside of the sealing cover plate, and a booster air pump is fixedly connected to the outside of the cervical dilation catheter.

[0014] Beneficial effects:

[0015] 1. The cervical auxiliary dilation device can keep the circulating fluid at a constant and suitable temperature during the dilation process, preventing the patient from having a stress reaction due to temperature difference after contact with the device, making the device more gentle when contacting the patient's sensitive parts, greatly improving the patient's comfort and safety.

[0016] 2. The cervical auxiliary dilation device can adjust the extension distance of the device by cooperating with the endoscopic camera on the top of the device, so that the device can adjust the extension distance according to the patient's age, body shape, medical project and individual differences, which greatly improves the adaptability of the device and reduces the harm to the patient caused by frequent replacement of equipment.

[0017] 3. The cervical auxiliary dilation device, through the cooperation of the internal fixed leak-proof mechanism and the leak-proof film clamp ring, can prevent the patient's body fluids from flowing into the component connection during the use of the device, causing erosion inside the device, thereby greatly improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the first overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the second overall structure of the present invention;

[0020] Figure 3 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 4 for Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0022] Figure 5 for Figure 1 A magnified schematic diagram of the structure at C in the middle;

[0023] Figure 6 for Figure 2 A magnified schematic diagram of the structure at D in the middle;

[0024] Figure 7 for Figure 2 The enlarged schematic diagram of the structure at E in the middle;

[0025] Figure 8 for Figure 2 Enlarged schematic diagram of the structure at F in the middle.

[0026] In the figure: 1. vulvar dilatation catheter; 2. cervical dilatation catheter; 3. constant temperature circulation box; 4. film clamp; 5. telescopic switch; 6. telescopic motor; 7. cervical dilatation balloon; 8. vulvar dilatation balloon; 9. circulating water pipe; 10. sealing cover; 11. booster air pump; 12. pressure relief valve; 13. fixing ring; 14. fixing column; 15. water injection plug; 16. leakproof film; 17. fixing through hole; 18. water injection through hole; 19. fixing hole; 20. inner balloon water injection groove; 21. circulation partition; 22. constant temperature heating rod; 23. outer balloon water injection groove; 24. circulating water pump; 25. booster air pipe; 26. transmission rod; 27. telescopic threaded column; 28. endoscope camera; 29. ​​adjustment groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0028] Embodiment 1

[0029] See also Figure 1-8 A cervical auxiliary dilation device comprises a vulvar dilation catheter 1, a cervical dilation catheter 2 and a constant temperature circulation box 3, the cervical dilation catheter 2 is movably connected to the inside of the vulvar dilation catheter 1, the outside of the vulvar dilation catheter 1 is fixedly connected to a vulvar dilation balloon 8, the outside of the vulvar dilation catheter 1 is fixedly connected to a telescopic motor 6, the end of the transmission shaft of the telescopic motor 6 is fixedly connected to a transmission rod 26, and the end of the transmission rod 26 away from the telescopic motor 6 is fixedly connected to a telescopic threaded column 27, the inside of the vulvar dilation catheter 1 is movably connected to a circulating water pipe 9, and the end of the circulating water pipe 9 located inside the vulvar dilation catheter 1 is detachably connected to a fixed anti-leakage mechanism, and the fixed anti-leakage mechanism comprises a fixing ring 13, a water injection plug 15 and a fixing column 14, The cervical dilatation catheter 2 is fixedly connected to the cervical dilatation balloon 7 on the outside, an adjustment groove 29 is provided inside the cervical dilatation catheter 2, a fixing hole 19 is provided outside the cervical dilatation catheter 2, an inner balloon water injection groove 20 is provided outside the cervical dilatation catheter 2, a circulating water pipe 9 is fixedly connected to a constant temperature circulation box 3 at one end away from the water injection plug 15, a sealing cover plate 10 is movably connected to the outside of the constant temperature circulation box 3, a sealing cover plate 10 is fixedly connected to the outside of the constant temperature circulation box 3, a circulating partition 21 is fixedly connected to the inside of the constant temperature circulation box 3, a constant temperature heating rod 22 is fixedly connected to the outside of the circulating partition 21, a circulating water pump 24 is fixedly connected to the inside of the constant temperature circulation box 3, and a pressurized air pipe 25 is movably connected to the inside of the constant temperature circulation box 3;

[0030] Among them: there are two circulating water pipes 9, an outer balloon water injection groove 23 is opened inside the vulvar dilatation catheter 1, a film clamp 4 is movably connected to the outside of the vulvar dilatation catheter 1, a leak-proof film 16 is detachably connected inside the film clamp 4, fixed through holes 17 are symmetrically opened on the outside of the leak-proof film 16, and water injection through holes 18 are symmetrically opened on the outside of the film clamp 4. The circulating partition 21 divides the interior of the constant temperature circulation box 3 into two parts, and the two parts of the space inside the constant temperature circulation box 3 are connected through a circulating water pump 24. The sealing cover plate 10 is fixedly connected to the outside of the pressure relief valve 12, and the cervical dilatation catheter 2 is fixedly connected to the outside of the booster air pump 11.

[0031] In this embodiment, when using the device, lubricating liquid is evenly applied to the outside of the vulvar dilatation catheter 1 and the cervical dilatation catheter 2, the leak-proof film 16 is placed on the outside of the cervical dilatation catheter 2, the fixing through hole 17 is adjusted to be aligned with the fixing hole 19 and the water injection through hole 18 is adjusted to be aligned with the inner balloon water injection groove 20, the fixing ring 13 is pulled out from the vulvar dilatation catheter 1, the fixing column 14 is adjusted to be aligned with the fixing hole 19 and the water injection plug 15 is adjusted to be aligned with the inner balloon water injection groove 20, the fixing column 14 is inserted into the fixing hole 19 through the fixing through hole 17, and the water injection plug 15 is inserted into the inner balloon water injection groove 20 through the water injection through hole 18, finally, the adjusting groove 29 is aligned with the telescopic threaded column 27 and slightly rotated and fixed, the film clamping ring 4 is removed, and the leak-proof The edge of the film 16 is stuck on the edge of the vulvar dilatation catheter 1 near the edge of the film clamp 4, and then the film clamp 4 is reinstalled to complete the fixation. The telescopic switch 5 is pressed to control the telescopic motor 6 to drive the leak-proof film 16 to rotate. The rotation of the leak-proof film 16 drives the fixed through hole 17 to rotate. The fixed through hole 17 rotates inside the adjustment groove 29 to drive the cervical dilatation catheter 2 to move to the appropriate position close to the telescopic motor 6. The sealing cover 10 is opened, and new circulating fluid is added to the constant temperature circulation box 3. After the circulating fluid is injected, the sealing cover 10 is reclosed to complete the preparation work, and then the vulvar dilatation catheter 1 and the cervical dilatation catheter 2 are pushed into the patient's vagina, and the position of the device is observed through the endoscopic camera 28 at the top of the cervical dilatation catheter 2. After the cervical dilatation catheter 2 is inserted into the target position, the booster air pump 11 is turned on to inject air into the constant temperature circulation box 3 through the booster air pipe 25. The constant temperature circulation box 3 is filled with air, causing the internal pressure to increase, forcing the circulating liquid to flow into the circulating water pipe 9. After passing through the circulating water pipe 9, the circulating liquid is injected into the inner balloon water injection groove 20 through the water injection plug 15. The circulating liquid is injected into the cervical dilatation balloon 7 through the inner balloon water injection groove 20. At the same time, the circulating liquid enters the outer balloon water injection groove 23 through the circulating water pipe 9. After passing through the outer balloon water injection groove 23, the circulating liquid is injected into the vulvar dilatation balloon 8. The expansion degree of the cervical dilatation catheter 2 is observed through the endoscopic camera 28. After the patient's cervical opening is expanded to an ideal degree, the booster air pump 11 is turned off and stopped. Stop inflation and pressurization. During the expansion process, turn on the constant temperature heating rod 22 to keep the circulating fluid temperature constant at a relatively mild temperature. Turn on the circulating water pump 24 to pump the circulating fluid from one side of the constant temperature circulation box 3 to the other side to promote the circulation of the circulating fluid and ensure that the overall temperature of the circulating fluid in the device remains consistent. After the expansion operation is completed, press the pressure relief valve 12 to release the gas inside the constant temperature circulation box 3 until the internal pressure of the constant temperature circulation box 3 is restored, then take out the vulvar dilation catheter 1 and the cervical dilation catheter 2. This completes the expansion process, keeps the circulating fluid at a constant and appropriate temperature, prevents the patient from having a stress reaction due to the temperature difference after contacting the device, and makes the device more gentle when contacting the patient's sensitive parts, greatly improving the patient's comfort and safety.

[0032] Embodiment 2

[0033] See also Figure 1-8 , further on the basis of embodiment 1, the fixing ring 13 is movably connected to the inside of the vulvar dilatation catheter 1, the fixing ring 13 is fixedly connected to one end of the circulating water pipe 9 away from the telescopic motor 6, the fixing column 14 is fixedly connected to the outside of the fixing ring 13, the number of the fixing columns 14 is two, and the fixing columns 14 are symmetrically distributed outside the fixing ring 13, the water injection plug 15 is fixedly connected to the outside of the fixing ring 13, the number of the water injection plug 15 is two, the water injection plug 15 is symmetrically distributed outside the fixing ring 13, and the water injection plug 15 is externally fixedly connected to one end of the circulating water pipe 9, the outside of the vulvar dilatation catheter 1 is provided with a telescopic switch 5, the outside of the cervical dilatation catheter 2 is provided with an endoscopic camera 28, the number of the fixing holes 19 is two, and the fixing holes 19 are symmetrically distributed outside the cervical dilatation catheter 2, the number of the inner balloon water injection grooves 20 is two, the number of the inner balloon water injection grooves 20 is two, and the inner balloon water injection grooves 20 are symmetrically distributed outside the cervical dilatation catheter 2, the number of the circulating water pipes 9 is two, and the outer balloon water injection groove 23 is opened inside the vulvar dilatation catheter 1.

[0034] In this embodiment, when the device is inserted into the patient's vagina, if the length of the device is too long or too short, the telescopic switch 5 is pressed to control the telescopic motor 6 to drive the leak-proof film 16 to rotate, and the rotation of the leak-proof film 16 drives the fixed through hole 17 to rotate. The fixed through hole 17 rotates inside the adjustment groove 29 to drive the cervical dilation catheter 2 to extend or shorten. After the dilation operation is completed, the vulvar dilation catheter 1 and the cervical dilation catheter 2 are taken out, and the telescopic switch 5 is pressed again to remove the cervical dilation catheter 2. After the adjustment groove 29 is completely separated from the fixed through hole 17, the cervical dilation catheter 2 is separated from the fixed ring 13, and then the film clamp ring 4 is opened, the leak-proof film 16 can be removed, and the sealing is opened. After the cover plate 10 pours out the circulating liquid in the constant temperature circulation box 3 and cleans out the circulating liquid in each component, the various parts of the device can be cleaned for subsequent use. At this point, the device is adjusted in distance by cooperating with the endoscopic camera on the top of the device, so that the device can be adjusted in distance according to the patient's age, body shape, medical items and individual differences, which greatly improves the adaptability of the device and reduces the harm to the patient caused by frequent replacement of equipment. In addition, the internal fixed leak-proof mechanism and the leak-proof film clamp cooperate to prevent the patient's body fluids from flowing into the component connection during the use of the device, causing the inside of the device to be corroded, thereby greatly improving the service life of the device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cervical auxiliary dilation device, comprising a vulvar dilation catheter (1), a cervical dilation catheter (2) and a constant temperature circulation box (3), characterized in that: The cervical dilatation catheter (2) is movably connected to the inside of the vulvar dilatation catheter (1), the outside of the vulvar dilatation catheter (1) is fixedly connected to a vulvar dilatation balloon (8), the outside of the vulvar dilatation catheter (1) is fixedly connected to a telescopic motor (6), the end of the transmission shaft of the telescopic motor (6) is fixedly connected to a transmission rod (26), the end of the transmission rod (26) away from the telescopic motor (6) is fixedly connected to a telescopic threaded column (27), the inside of the vulvar dilatation catheter (1) is movably connected to a circulating water pipe (9), the end of the circulating water pipe (9) located inside the vulvar dilatation catheter (1) is detachably connected to a fixed anti-leakage mechanism, the fixed anti-leakage mechanism includes a fixed ring (13), a water injection plug (15) and a fixed column (14), the outside of the cervical dilatation catheter (2) is fixedly connected to a cervical dilatation balloon (7 ), an adjusting groove (29) is provided inside the cervical dilatation catheter (2), a fixing hole (19) is provided outside the cervical dilatation catheter (2), an inner balloon water injection groove (20) is provided outside the cervical dilatation catheter (2), one end of the circulating water pipe (9) away from the water injection plug (15) is fixedly connected to a constant temperature circulation box (3), the constant temperature circulation box (3) is externally movably connected to a sealing cover plate (10), the constant temperature circulation box (3) is externally fixedly connected to a sealing cover plate (10), the constant temperature circulation box (3) is internally fixedly connected to a circulation partition (21), the circulation partition (21) is externally fixedly connected to a constant temperature heating rod (22), the constant temperature circulation box (3) is internally fixedly connected to a circulating water pump (24), and the constant temperature circulation box (3) is internally movably connected to a pressurized air pipe (25).

2. A cervical auxiliary dilation device according to claim 1, characterized in that: The fixing ring (13) is movably connected to the inside of the vulvar dilatation catheter (1), the fixing ring (13) is fixedly connected to one end of the circulating water pipe (9) away from the telescopic motor (6), the fixing column (14) is fixedly connected to the outside of the fixing ring (13), there are two fixing columns (14), and the fixing columns (14) are symmetrically distributed outside the fixing ring (13), the water injection plug (15) is fixedly connected to the outside of the fixing ring (13), there are two water injection plugs (15), and the water injection plugs (15) are symmetrically distributed outside the fixing ring (13), and the outside of the water injection plug (15) is fixedly connected to one end of the circulating water pipe (9).

3. A cervical auxiliary dilation device according to claim 1, characterized in that: A telescopic switch (5) is arranged outside the vulvar dilation catheter (1).

4. A cervical auxiliary dilation device according to claim 1, characterized in that: An endoscopic camera (28) is arranged outside the cervical dilatation catheter (2), there are two fixing holes (19), and the fixing holes (19) are symmetrically distributed outside the cervical dilatation catheter (2), there are two inner balloon water injection grooves (20), and the inner balloon water injection grooves (20) are symmetrically distributed outside the cervical dilatation catheter (2).

5. The cervical auxiliary dilation device according to claim 1, characterized in that: There are two circulating water pipes (9), and an outer balloon water injection tank (23) is provided inside the vulvar dilatation catheter (1).

6. A cervical auxiliary dilation device according to claim 1, characterized in that: The vulvar dilatation catheter (1) is movably connected to a film clamp (4) on the outside, and a leak-proof film (16) is detachably connected to the inside of the film clamp (4). The leak-proof film (16) is symmetrically provided with fixing through holes (17) on the outside, and the film clamp (4) is symmetrically provided with water injection through holes (18) on the outside.

7. The cervical auxiliary dilation device according to claim 1, characterized in that: The circulation partition (21) divides the interior of the constant temperature circulation box (3) into two parts, and the two parts of the interior of the constant temperature circulation box (3) are connected via a circulation water pump (24).

8. The cervical auxiliary dilation device according to claim 1, characterized in that: The sealing cover plate (10) is externally fixedly connected to a pressure relief valve (12), and the cervical dilation catheter (2) is externally fixedly connected to a booster air pump (11).

Images