Clinical cervical dilation device for obstetrics and gynecology department

Abstract

The clinical cervical dilation device comprises a handle and a fixing rod, the fixing rod is of a hollow structure, one end of the fixing rod is sleeved with a limiting ring, the outer side of the limiting ring is connected with a positioning seat through a plurality of silica gel columns, and one end of the positioning seat is provided with a dilation mechanism; an expansion bag is arranged at one end of the fixing rod, a water bag is arranged in the handle, and the water bag is communicated with the expansion bag through the hollow fixing rod. By arranging the limiting ring and the silica gel column, the fixing rod can be thinner, when the fixing rod is located in the vagina, contact with the vagina wall can be reduced as much as possible, the fixing rod extrudes the limiting ring when the position is adjusted, the silica gel column deforms, deflection of the angle position is achieved, and after the position is determined, the expansion bag is opened, and the fixing rod is fixed. And the cervical opening is opened, so that the contact influence on the vaginal wall during position adjustment is effectively reduced, and the discomfort of a patient is relieved.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, in particular to a cervical dilation device for clinical use in obstetrics and gynecology. Background Art

[0002] A cervical dilator is an instrument for checking the condition of the vagina and cervix. It can also be used in artificial abortion surgery. A cervical dilator is also called a cervical dilator rod. During uterine cavity operations, a cervical dilator rod is used to dilate the cervix and then expand the cervix to facilitate surgical operations. After the cervix is ​​dilated, the doctor will insert the negative pressure suction tube into the uterine cavity and perform suction to remove the gestational sac and surrounding tissues. Finally, a surgical scraper is used to clean the remaining tissue and blood in the uterine cavity.

[0003] During actual use, medical staff need to first stretch the vaginal opening, then insert the cervical dilator into the vagina until it reaches the cervical opening, inflate the balloon through the air inlet tube, and let the balloon dilate the cervix.

[0004] However, before the dilator reaches the cervical opening, it is difficult for medical staff to directly transport the dilator to the cervical opening due to the inconvenience of observing the inside of the vagina. Repeatedly adjusting the position inside the patient's vagina will increase the patient's discomfort, and long-term use may make it unbearable for the patient. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a cervical dilator for clinical use in obstetrics and gynecology to solve the technical problem that repeated adjustment of the position of the dilator inside the patient's vagina will aggravate the patient's discomfort.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cervical dilation device for clinical use in obstetrics and gynecology, comprising a handle and a fixed rod, and the fixed rod is a hollow structure, one end of the fixed rod is provided with a limiting ring, the outer side of the limiting ring is connected to a positioning seat through a plurality of silicone columns, one end of the positioning seat is provided with an opening mechanism, one end of the fixed rod is provided with an expansion bag, and a water bag is provided inside the handle, and the water bag is connected to the expansion bag through the hollow fixed rod.

[0007] The present invention is further configured such that the opening mechanism includes a pressing strip, a spring and a duckbill support, a group of the duckbill supports are rotatably arranged on the surface of the positioning seat through a rotating shaft, the outer wall of the duckbill support is connected to a pressing strip, and the pressing strip is connected through a spring.

[0008] The present invention is further configured such that an elastic block is provided inside the water bag, a pressing block is provided through the surface of the handle, and the pressing block is connected to the water bag.

[0009] The present invention is further configured such that a piston column is provided on the inner wall of the handle, the piston column is a hollow structure, and a sealing cover is provided at one end of the piston column.

[0010] The present invention is further configured such that a plurality of air pumps are installed in the wall of the fixing rod, a plurality of air inlets for supplying air to the air pumps are opened in the wall of the fixing rod, and the ends of the air inlets are connected to air bags.

[0011] The present invention is further configured such that the outer wall of the fixing rod is rotatably connected to a swivel, the outer wall of the swivel is provided with a plurality of first exhaust holes, and the surface of the fixing rod close to the swivel is provided with a plurality of second exhaust holes.

[0012] The present invention is further configured such that a pressure sensor is installed inside the airbag.

[0013] The present invention is further configured such that a plurality of induction lights and buttons are installed on the surface of the handle, the induction lights are electrically connected to the pressure sensor through a controller, and the buttons control the opening and closing of the air pump.

[0014] The present invention is further configured such that the air pump, the induction lamp and the pressure sensor are all connected to an external power source via wires.

[0015] In summary, the present invention mainly has the following beneficial effects: by setting a limiting ring and a silicone column, the present invention can set the fixing rod thinner, and when the fixing rod is inside the vagina, the contact with the vaginal wall can be reduced as much as possible. When adjusting the position, the fixing rod squeezes the limiting ring, causing the silicone column to deform and realize the deflection of the angular position. When the position is determined, the expansion bag is expanded to open the cervical opening, effectively reducing the contact impact on the vaginal wall during position adjustment and alleviating the patient's discomfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the disassembled state of the support mechanism of the present invention;

[0018] Figure 3 This is a cross-sectional view of the internal structure of the fixing rod of the present invention;

[0019] Figure 4 This is a structural diagram of the opening mechanism of the present invention;

[0020] Figure 5 This is a cross-sectional view of the internal structure of the water bag of the present invention;

[0021] Figure 6 For the present invention Figure 1 A magnified view of the structure at point A;

[0022] Figure 7 For the present invention Figure 3 A magnified view of the structure at point B;

[0023] Figure 8 For the present invention Figure 3 A magnified view of the structure at point C;

[0024] Figure 9 It is a cross-sectional view of the internal structure of the swivel of the present invention.

[0025] In the figure: 1. Handle; 2. Fixing rod; 3. Button; 4. Positioning seat; 5. Press bar; 6. Spring; 7. Duckbill support; 8. Limiting ring; 9. Silicone column; 10. Air pump; 11. Air inlet; 12. Air bag; 13. Swivel; 14. First exhaust hole; 15. Second exhaust hole; 16. Water bag; 17. Pressure block; 18. Elastic block; 19. Expansion bag; 20. Piston column; 21. Induction light. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0027] The following describes an embodiment of the present invention based on its overall structure.

[0028] A cervical dilation device for clinical use in obstetrics and gynecology, such as Figure 1-9 As shown, it includes a handle 1 and a fixing rod 2, and the fixing rod 2 is a hollow structure. One end of the fixing rod 2 is sleeved with a limiting ring 8. The outer side of the limiting ring 8 is connected to a positioning seat 4 through a plurality of silicone columns 9. One end of the positioning seat 4 is provided with an opening mechanism, which includes a pressing strip 5, a spring 6 and a duckbill support 7. A group of duckbill supports 7 are rotatably arranged on the surface of the positioning seat 4 through a rotating shaft. The outer wall of the duckbill support 7 is connected to a pressing strip 5, and the pressing strip 5 is connected by a spring 6. Before using the expansion device, the opening mechanism is first moved to the patient's vaginal opening, and then the pressing strip 5 is pressed. At this time, the duckbill support 7 opens to open the patient's vaginal opening;

[0029] When the patient's vaginal opening is stretched, the fixing rod 2 is pushed toward the position of the cervical opening, and the fixing rod 2 moves through the limiting ring 8. A camera is installed on the surface of the fixing rod 2, and the position can be observed through the camera after the fixing rod 2 is extended into the vagina. The fixing rod 2 stops moving inward when it reaches the position of the cervical opening. If one end of the fixing rod 2 deviates from the position of the cervical opening, the angle of the fixing rod 2 can be adjusted so that the fixing rod 2 is close to the cervical opening. The angle adjustment of the fixing rod 2 is achieved through the limiting ring 8 and the silicone column 9. When the fixing rod 2 adjusts its angle, the fixing rod 2 squeezes the limiting ring 8, and the limiting ring 8 causes the silicone column 9 to deform, thereby achieving deflection of the angle position.

[0030] Furthermore, multiple air pumps 10 are installed in the wall of the fixing rod 2. Multiple air inlet channels 11 are opened in the wall of the fixing rod 2 for supplying air from the air pumps 10. The ends of the air inlet channels 11 are connected to air bags 12. When the opening mechanism opens the vagina and the fixing rod 2 enters the vagina, the air pump 10 is started to supply air to the air bags 12. The gas enters the air bags 12 through the air inlet channels 11, causing the air bags 12 to expand. The four expanded air bags 12 form an annular structure, which is located inside the vagina for support and positioning, so that the fixing rod 2 is exactly in the middle, which can further speed up the positioning speed of the fixing rod 2, and the fixing rod 2 can be set thinner, effectively reducing the stimulation of the patient's vagina caused by the fixing rod 2 looking for the cervical opening.

[0031] In addition, the airbag 12 is initially stored inside the fixing rod 2 and extends from the groove to form an annular structure when inflated, which can reduce the occupied area of ​​the airbag 12 without affecting the inflation effect.

[0032] During use, since each patient has different levels of acceptance, the expansion of the airbag 12 may cause discomfort to the patient. Therefore, it is necessary to control the air supply of the airbag 12 in time to prevent the patient's discomfort from worsening and causing the operation to stop. Therefore, each airbag 12 is individually controlled by an air pump 10, and buttons 3 are installed on the surface of the handle 1. Each button 3 controls an air pump 10, which can effectively enhance the control effect of the airbag 12.

[0033] However, if the patient suddenly feels worsening discomfort when the airbag 12 is inflated, pulling out the fixing rod 2 at this time may cause secondary injury to the patient, so a gas cutting mechanism is provided, and the outer wall of the fixing rod 2 is rotatably connected to a swivel 13, and the outer wall of the swivel 13 is provided with a plurality of first exhaust holes 14, and the surface of the fixing rod 2 close to the swivel 13 is provided with a plurality of second exhaust holes 15. The swivel 13 is rotated clockwise to connect the first exhaust holes 14 with the air inlet duct 11, and the gas inside the airbag 12 is discharged from the first exhaust holes 14 along the air inlet duct 11, and the air outlet of the air pump 10 is connected with the second exhaust holes 15, and the gas generated by the air pump 10 is discharged from the second exhaust holes 15. Through the above structure, when the patient feels worsening discomfort and the air pump 10 cannot be turned off at this time, and the fixing rod 2 cannot be pulled out due to the inflation of the airbag 12, the gas inside the airbag 12 can be pulled out, so that the fixing rod 2 can be smoothly pulled out, thereby alleviating the patient's discomfort.

[0034] A pressure sensor is installed inside the airbag 12, and a plurality of induction lights 21 are installed on the surface of the handle 1. The induction lights 21 are electrically connected to the pressure sensor through a controller. The pressure sensor can monitor the pressure changes of the airbag 12 in real time. When the pressure of the airbag 12 increases, the induction lights 21 can promptly remind of the pressure changes.

[0035] An expansion bag 19 is provided at one end of the fixed rod 2, and a water bag 16 is provided inside the handle 1. The water bag 16 is connected to the expansion bag 19 through the hollow fixed rod 2. An elastic block 18 is provided inside the water bag 16. A pressure block 17 is provided on the surface of the handle 1, and the pressure block 17 is connected to the water bag 16. When one end of the fixed rod 2 reaches the position of the cervical opening, the pressure block 17 is repeatedly pressed, and the pressure block 17 causes the water bag 16 to be continuously deformed. The elastic block 18 inside the water bag 16 can make the water bag 16 continuously reset when pressed and released. The liquid inside the water bag 16 smoothly enters the hollow structure of the fixed rod 2. The end of the hollow structure is the expansion bag 19. Under the action of the liquid, the expansion bag 19 expands toward the inside of the cervical opening and stretches the cervix, thereby realizing the expansion movement of the cervix.

[0036] A piston column 20 is provided on the inner wall of the handle 1. The piston column 20 is a hollow structure, and a sealing cover is provided at one end of the piston column 20. When the liquid inside the water bag 16 needs to enter the interior of the fixed rod 2, it is necessary to keep the two ends of the water bag 16 connected, that is, one end is connected with the fixed rod 2, and the other end is connected with the outside world. Therefore, the piston column 20 is provided. When the water bag 16 delivers water, the external atmospheric pressure will press the piston column 20 to move toward the water bag 16. The piston column 20 plays a guiding role, and opening the sealing cover can supply water to the piston column 20. The hollow piston column 20 is connected with the water bag 16. The water inlet and water outlet of the water bag 16 are both provided with a one-way water valve. The liquid can only enter the interior of the fixed rod 2 from the water bag 16.

[0037] The air pump 10, the induction lamp 21 and the pressure sensor are all connected to the external power supply through wires. The above components are all controlled by corresponding electrical connection structures. The electrical connection structure is not the main innovation point, so it is not described in detail. Those skilled in the art can choose a suitable structure for use.

[0038] When the cervix is ​​fully dilated, the handle 1 is disassembled, the liquid inside the fixing rod 2 can flow out, the dilation capsule 19 can be pulled out from the cervical opening, and the device can be pulled out.

[0039] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

Claims

1. A cervical dilation device for clinical use in obstetrics and gynecology, comprising a handle (1) and a fixing rod (2), wherein the fixing rod (2) is a hollow structure, characterized in that: One end of the fixing rod (2) is sleeved with a limiting ring (8), the outer side of the limiting ring (8) is connected to a positioning seat (4) through a plurality of silicone columns (9), one end of the positioning seat (4) is provided with an expansion mechanism, one end of the fixing rod (2) is provided with an expansion bag (19), the interior of the handle (1) is provided with a water bag (16), and the water bag (16) is connected to the expansion bag (19) through the hollow fixing rod (2).

2. A cervical dilation device for clinical use in obstetrics and gynecology according to claim 1, characterized in that: The opening mechanism comprises a pressing strip (5), a spring (6) and a duckbill support (7); a group of the duckbill supports (7) are rotatably arranged on the surface of the positioning seat (4) via a rotating shaft; the outer wall of the duckbill support (7) is connected to the pressing strip (5), and the pressing strips (5) are connected via a spring (6).

3. The cervical dilation device for clinical use in obstetrics and gynecology according to claim 1, characterized in that: An elastic block (18) is provided inside the water bag (16), and a pressing block (17) is provided through the surface of the handle (1), and the pressing block (17) is connected to the water bag (16).

4. A cervical dilation device for clinical use in obstetrics and gynecology according to claim 1, characterized in that: The inner wall of the handle (1) is provided with a piston column (20), the piston column (20) is a hollow structure, and one end of the piston column (20) is provided with a sealing cover.

5. The cervical dilation device for clinical use in obstetrics and gynecology according to claim 1, characterized in that: A plurality of air pumps (10) are installed in the wall of the fixed rod (2), a plurality of air inlets (11) for the air pumps (10) to discharge air are opened in the wall of the fixed rod (2), and the ends of the air inlets (11) are connected to air bags (12).

6. The cervical dilation device for clinical use in obstetrics and gynecology according to claim 1, characterized in that: The outer wall of the fixed rod (2) is rotatably connected to a rotating ring (13), the outer wall of the rotating ring (13) is provided with a plurality of first exhaust holes (14), and the surface of the fixed rod (2) close to the rotating ring (13) is provided with a plurality of second exhaust holes (15).

7. The cervical dilation device for clinical use in obstetrics and gynecology according to claim 5, characterized in that: A pressure sensor is installed inside the airbag (12).

8. The cervical dilation device for clinical use in obstetrics and gynecology according to claim 7, characterized in that: A plurality of induction lamps (21) and buttons (3) are installed on the surface of the handle (1); the induction lamps (21) are electrically connected to a pressure sensor via a controller; and the button (3) controls the opening and closing of the air pump (10).

9. The cervical dilation device for clinical use in obstetrics and gynecology according to claim 5, characterized in that: The air pump (10), the induction lamp (21) and the pressure sensor are all connected to an external power source via wires.

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