Rolling experiment device for balloon cervical dilator
By designing the balloon cervical dilator roller experiment device and simulating the actual usage conditions to conduct roller experiments on the balloon, the control problems of fluid leakage and rupture in the existing technology are solved, and the reliability evaluation and quality of the balloon dilator are achieved. improve.
Patent Information
- Application Number
- CN202421184211.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-28
AI Technical Summary
Existing balloon cervical dilators are prone to fluid leakage and rupture during clinical use, and lack of simulated use and rolling and extrusion experimental devices, resulting in the inability to effectively control and avoid these problems.
A balloon cervical dilator roller experiment device was designed, including experimental seat, drive assembly, roller head, balloon fixator and heater. The balloon was subjected to roller experiments by simulating actual usage conditions, and equipped with a beat controller to accurately control the roller The head movement frequency and speed are automatically recorded through the proximity switch and counter.
It can detect potential liquid leakage and rupture problems in advance, provide a basis for product design and quality improvement, and ensure quantitative monitoring and analysis of the experimental process.
Smart Images
Figure CN222213581U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of experimental devices, and specifically to a balloon cervical dilator kneading experimental device. Background Art
[0002] The disposable balloon cervical dilator is made of latex and is used for mechanical dilation of the cervical canal of an unripe cervix before full-term induction of labor. The method of use is: the pregnant woman takes the lithotomy position, the cervix is exposed with a speculum and then disinfected, the toothless ovate forceps are clamped at the root of the balloon, and slowly inserted into the cervical canal to 10cm; 150ml of injection water is injected in the head position; after the injection is completed, the tail plug is plugged, and the end is taped to the inner thigh of the patient with medical tape; the uterine opening is dilated to 7-8cm, the balloon cervical dilator comes out of the vagina, and then a labor pain promoter is used for artificial rupture of membranes.
[0003] The Chinese patent with application number 201520885232X discloses a balloon cervical dilator, including a balloon and an infusion tube connected to the balloon at one end, and a liquid delivery device is provided at the other end of the infusion tube; the liquid delivery device includes a pumping device, an infusion tube one-way valve and a liquid extraction tube one-way valve, the liquid outlet end of the infusion tube one-way valve is connected to the infusion tube, and the liquid inlet end is respectively connected to the pumping device and the liquid outlet end of the liquid extraction tube one-way valve. The balloon cervical dilator in the prior art is composed of a balloon and an infusion tube. At present, the balloon of the balloon cervical dilator may leak, rupture, etc. during clinical use. There is no experimental device available on the market for simulating the use, kneading and squeezing of the above-mentioned phenomenon, so the above-mentioned phenomenon cannot be controlled and avoided. Utility Model Content
[0004] In order to solve the above problems, the utility model provides a balloon cervical dilator kneading experimental device, including an experimental seat, a driving assembly, a kneading head, a balloon holder and a heater. A workbench is provided on the top of the experimental seat, the driving assembly is arranged on the workbench and connected to the kneading head, the driving assembly drives the kneading head to reciprocate up and down, an experimental cabin is provided below the workbench in the experimental seat, the balloon holder and the heater are arranged in the experimental cabin, a through groove is provided in the part of the workbench above the balloon holder, and the bottom of the kneading head extends through the through groove to the balloon holder.
[0005] Preferably, the driving assembly includes a telescopic cylinder, a connecting rod, a fixed plate and a rotating shaft, the output end of the telescopic cylinder is hinged to the connecting rod, the tail end of the telescopic cylinder is hinged with a fixed block, the fixed block is fixed on a workbench, the rotating shaft is rotatably arranged on the fixed plate, one end of the rotating shaft is connected to the connecting rod, the other end of the rotating shaft is connected to a swing plate, the swing plate is connected to a mounting plate, and the bottom of the mounting plate is connected to the kneading head.
[0006] Preferably, a first limiting plate and a second limiting plate are obliquely provided on a surface of the fixing plate close to the telescopic cylinder, a first limiting plate is provided with a first limiting bolt, and a second limiting bolt is provided on the second limiting plate.
[0007] Preferably, a water outlet bucket is provided at the bottom of the experimental seat below the experimental cabin.
[0008] Preferably, the workbench is provided with a cylinder switch and a rhythm controller, and the workbench is also provided with a water baffle, and the water baffle is located between the cylinder switch and the through groove.
[0009] Preferably, the workbench is also provided with a counter and a proximity switch, the counter and the proximity switch are connected, and the proximity switch is located on the side where the output end of the telescopic cylinder extends to the limit distance.
[0010] The advantages of the utility model are:
[0011] 1. In this scheme, the actual use conditions are simulated and the balloon of the cervical dilator is subjected to a twisting experiment, which can detect potential leakage, rupture and other problems in advance, and can control and avoid leakage, rupture and other problems in advance, providing a basis for product design and quality improvement.
[0012] 2. The rhythm controller equipped in this solution can accurately control the frequency and speed of the up and down reciprocating motion of the kneading head, thereby simulating kneading experiments at different speeds and rhythms.
[0013] 3. The combination of proximity switch and counter in this scheme can automatically record the number of times the kneading head moves, which is convenient for quantitative monitoring and analysis of the experimental process. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a front three-dimensional structural diagram of the utility model.
[0015] Figure 2 It is a three-dimensional structural diagram of the back side of the utility model.
[0016] Figure 3 This is a planar structural diagram of the drive assembly of the utility model.
[0017] Figure 4 It is a schematic diagram of the internal structure of the experimental cabin of the utility model.
[0018] Figure 5 This is a structural diagram of the utility model balloon cervical dilator in a kneading state.
[0019] In the figure: In the figure: 1 experimental seat, 2 kneading head, 3 balloon holder, 4 heater, 5 workbench, 6 experimental cabin, 7 through slot, 8 telescopic cylinder, 9 connecting rod, 10 fixed plate, 11 rotating shaft, 12 fixed block, 13, swing plate, 14 mounting plate, 15 first limit plate, 16 second limit plate, 17 first limit bolt, 18 second limit bolt, 19 water outlet bucket, 20 cylinder switch, 21 beat controller, 22 water baffle, 23 counter, 24 proximity switch, 25 balloon cervical dilator. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.
[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. At the same time, when an element is referred to as "fixed on" or "provided on" another element, it can be directly on the other element or there may be a central element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be a central element at the same time. When an element is referred to as being "fixedly connected to" another element, it can be a common fixed connection method such as welding, bolting, or gluing. In short, for ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Example
[0023] like Figure 1-2 and Figure 4As shown, a balloon cervical dilator kneading experimental device includes an experimental seat 1, a workbench 5 is provided on the top of the experimental seat 1, an experimental cabin 6 is provided on the experimental seat 1 below the workbench 5, a balloon holder 3 and a heater 4 are installed above the bottom of the experimental cabin 6, a through groove 7 is provided on the part of the workbench 5 above the balloon holder 3, and the experimental cabin 6 is a closed structure except that it is connected to the outside through the through groove 7. Above the balloon holder 3 is a hemispherical recessed structure, in the middle of which is a connecting hole that connects downwards, and the diameter of the infusion tube of the balloon cervical dilator 25 is less than or equal to the diameter of the connecting hole, and the size of the balloon of the balloon cervical dilator 25 is larger than the connecting hole. Therefore, during the experiment, the balloon cervical dilator 25 is in a vertical state with the balloon part on top and the infusion tube part on the bottom, and the balloon part of the balloon cervical dilator 25 is just stuck in the center position above the balloon holder 3 to fix the balloon cervical dilator 25, which is convenient for subsequent twisting experiments.
[0024] Combination Figure 3 The workbench 5 is also provided with a driving assembly, which includes a telescopic cylinder 8, a connecting rod 9, a fixed plate 10 and a rotating shaft 11. The fixed plate 10 is vertically fixed on the side of the through slot 7, and the rotating shaft 11 is rotatably set on the fixed plate 10. The end of the rotating shaft 11 close to the through slot 7 is connected to a swing plate 13, and the swing plate 13 is connected to a mounting plate 14. The bottom of the mounting plate 14 is connected to a kneading head 2, and the bottom of the kneading head 2 is opposite to the through slot 7 and the balloon holder 3. When the rotating shaft 11 rotates, it drives the swing plate 13 and the mounting plate 14 to reciprocate, thereby driving the kneading head 2 to reciprocate up and down. The top of the kneading head 2 is a columnar structure, and the bottom is a hemispherical structure, such as Figure 5As shown, the kneading head 2 can knead and squeeze the balloon in the balloon holder 3 when it reciprocates up and down, and circulates in sequence to perform a kneading experiment on the balloon cervical dilator 25. The design of the kneading head 2 can simulate the squeezing and kneading of the dilator by the balloon cervix in actual use, so as to evaluate the durability and reliability of the dilator. The reciprocating rotation of the shaft 11 is realized by the telescopic cylinder 8 and the connecting rod 9. The tail end of the telescopic cylinder 8 is hinged with a fixed block 12, and the fixed block 12 is fixed on the workbench 5. The output end of the telescopic cylinder 8 is hinged with the connecting rod 9, and the other end of the connecting rod 9 is connected to the rotating shaft 11. When the output end of the telescopic cylinder 8 reciprocates and retracts, it can drive the connecting rod 9 to swing on the surface of the fixed plate 10, and the swing of the connecting rod 9 can drive the rotating shaft 11 to rotate reciprocatingly. The driving component in this scheme can accurately control the movement of the kneading head 2 to ensure the stability and accuracy of the experimental process. The first limit plate 15 and the second limit plate 16 are inclinedly arranged on one surface of the fixed plate 10 close to the telescopic cylinder 8. The first limit plate 15 and the second limit plate 16 are symmetrically arranged, and the first limit plate 15 and the second limit plate 16 can limit the swing amplitude of the connecting rod 9. The first limit plate 15 is provided with a first limit bolt 17, and the second limit plate 16 is provided with a second limit bolt 18. By rotating and adjusting the two limit bolts, the swing amplitude of the connecting rod 9 can be further limited, thereby limiting the amplitude of the up and down reciprocating motion of the kneading head 2 to meet different experimental requirements.
[0025] The workbench 5 is also provided with a cylinder switch 20 and a beat controller 21. The cylinder switch 20 is used to control the connection between the telescopic cylinder 8 and the power supply, thereby controlling the start and stop of the telescopic cylinder 8. The beat controller 21, also known as a pneumatic metronome, is a pneumatic control element. The beat controller 21 can set the time for the telescopic cylinder 8 to reciprocate once, thereby controlling the speed of the beat of the kneading and squeezing expander balloon during the kneading experiment. The beat controller 21 is a well-known technology in the art, such as the iB-Flow cylinder beat controller imported from Japan, and its specific structure and principle will not be repeated in this embodiment. The workbench 5 is also provided with a counter 23 and a proximity switch 24. The proximity switch 24 is located at the side where the output end of the telescopic cylinder 8 extends to the limit distance. The counter 23 and the proximity switch 24 are electrically connected. When connected, add a 220V HH51P or HH52P intermediate relay, connect the proximity switch 24 and the coil of the intermediate relay in series with the 220V power supply, and connect the normally open contact of the intermediate relay to the counting input end of the counter 23. The counter 23 mainly counts the number of pulses in the digital system to achieve the functions of measurement, counting and control. The proximity switch 24 is a position switch that can be operated without mechanical direct contact with the moving parts. When the object approaches the sensing surface of the switch 24 to the action distance, the switch can be operated without mechanical contact and any pressure, thereby driving the DC appliance or providing control instructions to the computer device. The proximity switch 24 in this embodiment includes but is not limited to an eddy current proximity switch 24, a capacitive proximity switch 24, a Hall proximity switch 24, and a photoelectric proximity switch 24. When the output end of the telescopic cylinder 8 reciprocates to the position of the proximity switch 24, the counter 23 counts once, and the counts are cyclically superimposed in sequence. The counter 23 and the proximity switch 24 and the connection method of the two are well-known technologies in the art. Both have many models on the market, such as the H7EC-N model counter 23 and the Keyence EX-V proximity switch 24. The specific internal structure and principle of the present embodiment will not be repeated. The combined use of the counter 23 and the proximity switch 24 can automatically record the number of kneading times during the experiment, which is convenient for subsequent data analysis and processing.
[0026] When conducting the experiment in this embodiment, firstly, water is injected into the balloon of the balloon cervical dilator 25, and then the balloon is hung at the specified position of the balloon holder 3. Water is added to the experimental chamber 6 using a water container until it covers the upper surface of the balloon holder 3. The heater 4 is started to heat the water temperature to about 37°C. The heater 4 can adopt a common heater such as a plate water heater or a corrugated tube water heater. The heater 4 simulates the human body temperature, so that the balloon cervical dilator 25 is tested in an environment closer to actual use. The cylinder switch 20 is turned on, and the telescopic cylinder 8 starts to telescope. Through the connecting rod 9 and the rotating shaft 11, the mounting plate 14 is rotated back and forth, so that the kneading head 2 reciprocates up and down, and then the balloon part of the balloon cervical dilator 25 is kneaded and squeezed, and the cycle is repeated in sequence to carry out the kneading experiment of the balloon cervical dilator 25.
[0027] A water baffle 22 is also provided on the workbench 5. The water baffle 22 is located between the cylinder switch 20 and the through groove 7. The water baffle 22 plays the role of shielding scattered water drops. The bottom of the experimental seat 1 is located below the experimental cabin 6 and is provided with a water outlet bucket 19. One end of the infusion tube of the balloon cervical dilator 25 extends to the inside of the water outlet bucket 19. The water outlet bucket 19 can collect the water in the balloon cervical dilator 25. At the same time, the water in the experimental cabin 6 can also be collected by the water outlet bucket after the experiment is over.
[0028] 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 balloon cervical dilator twisting experimental device, characterized in that: The experimental seat (1) comprises an experimental seat (1), a driving component, a kneading head (2), a balloon holder (3) and a heater (4); a workbench (5) is provided on the top of the experimental seat (1); the driving component is arranged on the workbench (5) and connected to the kneading head (2); the driving component drives the kneading head (2) to reciprocate up and down; an experimental cabin (6) is provided below the workbench (5) in the experimental seat (1); the balloon holder (3) and the heater (4) are arranged in the experimental cabin (6); a through groove (7) is provided on the part of the workbench (5) above the balloon holder (3); the bottom of the kneading head (2) passes through the through groove (7) and extends into the balloon holder (3).
2. The balloon cervical dilator twisting experimental device according to claim 1, characterized in that: The driving assembly comprises a telescopic cylinder (8), a connecting rod (9), a fixed plate (10) and a rotating shaft (11); the output end of the telescopic cylinder (8) is hinged to the connecting rod (9); the tail end of the telescopic cylinder (8) is hinged to a fixed block (12); the fixed block (12) is fixed on the workbench (5); the rotating shaft (11) is rotatably arranged on the fixed plate (10); one end of the rotating shaft (11) is connected to the connecting rod (9); the other end of the rotating shaft (11) is connected to a swing plate (13); the swing plate (13) is connected to a mounting plate (14); the bottom of the mounting plate (14) is connected to the kneading head (2).
3. The balloon cervical dilator kneading experimental device according to claim 2, characterized in that: A first limiting plate (15) and a second limiting plate (16) are obliquely arranged on a surface of the fixing plate (10) close to the telescopic cylinder (8); a first limiting bolt (17) is arranged on the first limiting plate (15) and a second limiting bolt (18) is arranged on the second limiting plate (16).
4. The balloon cervical dilator twisting experimental device according to claim 3, characterized in that: A water outlet bucket (19) is provided at the bottom of the experimental seat (1) below the experimental cabin (6).
5. The balloon cervical dilator kneading experimental device according to claim 4, characterized in that: The workbench (5) is provided with a cylinder switch (20) and a rhythm controller (21). The workbench (5) is also provided with a water baffle (22), and the water baffle (22) is located between the cylinder switch (20) and the through groove (7).
6. The balloon cervical dilator twisting experimental device according to claim 5, characterized in that: The workbench (5) is also provided with a counter (23) and a proximity switch (24), the counter (23) and the proximity switch (24) are connected, and the proximity switch (24) is located on the side where the output end of the telescopic cylinder (8) extends to the limit distance.