Automatic flushing mechanism and oocyte collection device for convenient operation.

Abstract

An automatic flushing structure for convenient operation, comprising a mounting shell (2), a syringe drive mechanism, and a syringe clamp mechanism, wherein the mounting shell (2) has a structure with a locking groove on its side, the syringe clamp mechanism is installed outside the locking groove, and the syringe drive mechanism is provided inside the mounting shell (2). An oocyte collection device, comprising a collection device body, wherein an automatic flushing structure is installed on the side of the collection device body.

Description

Technical Field

[0001] The present invention belongs to the field of medical devices, relates to a device for reproductive surgery, and particularly relates to an automatic flushing structure and an oocyte collection instrument that are convenient to operate.

Background Art

[0002] An oocyte collection instrument is a special device developed for collecting oocytes in reproductive assisted surgery. Currently, most of the commercially available oocyte collection instruments only have the function of collecting eggs, and flushing is manually injected with a syringe, so there is a problem of inconvenience in operation.

[0003] Patent Document 1 discloses an egg negative pressure aspirator for egg collection. The flushing mechanism on it is composed of a peristaltic pump driven by a stepping drive integrated machine and a flushing liquid test tube. The peristaltic pump is attached to the upper side shell of the casing. The liquid inlet end of the peristaltic pump is connected to the flushing liquid test tube through a pipeline, and the liquid outlet end of the peristaltic pump is connected to a double-lumen egg collection needle through a pipeline. Although it realizes the automatic flushing function, from the perspective of clinical use, when in use, it is necessary to connect the sterilized tubes respectively connected to the flushing liquid test tube and the double-lumen egg collection needle to the peristaltic pump, which makes the preparation work before egg collection complicated.

[0004] Therefore, an automatic flushing structure and an oocyte collection instrument that are convenient to operate are provided, which can make the egg collection operation easier and improve the egg collection efficiency.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present invention aims to overcome the problems arising in the above-mentioned background art and to provide an automated flushing structure and oocyte collection device that are convenient to operate. [Means for solving the problem]

[0007] This invention solves the technical problems through the following technical solutions. This is an automatic flushing structure that is convenient to operate, and includes a mounting shell, a syringe drive mechanism, and a syringe clamp mechanism. The mounting shell has a structure in which a locking groove is provided on the side, the syringe clamp mechanism is provided on the outside of the locking groove, and the syringe drive mechanism is provided inside the mounting shell.

[0008] Furthermore, the syringe drive mechanism includes a guide rail frame, a motor, a push handle drive screw, a syringe push handle, a guide rod, a push rod, and an engagement assembly. A motor-driven push handle drive screw is mounted within the guide rail frame, a triangular slider is fitted onto the push handle drive screw, and parts of both ends of the triangular slider are attached to guide rods mounted above and below within the guide rail frame, respectively. A push rod is rotatably connected to the other end of the triangular slider, a syringe push handle is connected to the end of the push rod, an engagement assembly is provided on the side of the triangular slider, and the push rod controls the engagement and disengagement of the engagement assembly and the push handle drive screw via a projection mounted thereon. A limiting light coupler is attached to the inner wall of the guide rail frame at one end away from the motor.

[0009] Furthermore, the engagement assembly includes an engagement block, a compression spring, and a pressure plate, the engagement block includes a hinge portion, an engagement portion, and a crimping portion, the hinge portion having an engagement portion and a crimping portion at both ends, the hinge portion being hinge-coupled to the side wall of the triangular slider, the lower end surface of the engagement portion fitting the threads of the push handle drive screw, the upper end surface of the engagement portion having a pressure plate connected via a compression spring, the pressure plate being fixed to the triangular slider, and the crimping portion being positioned below the push rod.

[0010] Furthermore, the syringe clamp mechanism includes a clamp plate, a spring, a blocking piece, and a bolt, the clamp plate includes a clamp plate body and an extendable shaft installed on the lower inside of the clamp plate body, an extendable hole is provided in the lower central part of the mounting shell, the extendable shaft of the clamp plate is attached to the extendable hole via a spring, and a blocking piece that contacts the spring is attached to the end of the extendable shaft via a bolt.

[0011] An oocyte collection device, comprising a collection device body, wherein an automatic flushing structure is installed on the side of the collection device body.

[0012] Furthermore, the negative pressure energy storage tank within the sampling device body is a steplessly adjustable energy storage tank, which includes an energy storage tank body, an air nozzle, a piston, a piston drive screw, a stepping motor, a bracket, an optical coupler, an optical coupler sheet, and an optical coupler baffle, wherein an air nozzle is provided at the front end of the energy storage tank body, a piston is installed inside the energy storage tank body, the piston is driven to extend and retract via a piston drive screw by a stepping motor located at the rear of the energy storage tank body, an optical coupler baffle is connected to the rear end of the piston drive screw, an optical coupler sheet is provided below the optical coupler baffle, the optical coupler sheet is connected to a bracket with bolts, the bracket is attached inside the sampling device body with bolts, and an optical coupler is provided at the rear end of the optical coupler sheet.

[0013] Furthermore, a central microprocessor controller is provided inside the sampling device body, and the input terminals of the central microprocessor controller are connected to a suction pedal, a negative pressure value setting keyboard, a flushing pedal, and a pressure sensor, respectively. The liquid crystal display of the sampling device body is bidirectionally connected to the central microprocessor controller, and the output terminals of the central microprocessor controller are connected to an automatic flushing structure, a negative pressure pump, an automatic pressure adjustment controller, an air release valve, a steplessly adjustable energy storage tank, and a switch valve, respectively. [Effects of the Invention]

[0014] The advantages and beneficial effects of the present invention are as follows: The automated flushing structure and oocyte retrieval device of the present invention, which are convenient for operation, provide a negative pressure source with constant pressure and a stable airflow to the disposable oocyte retrieval needle when used in combination with a disposable oocyte retrieval needle during the flushing operation. The retrieval device employs a steplessly adjustable energy storage tank, allowing the capacity of the energy storage tank to be adjusted steplessly as needed. Smaller capacities make it easier to set the target negative pressure, while larger capacities result in more stable output negative pressure. The retrieval device employs an automated flushing structure for flushing injection during surgery, achieving high fluid volume accuracy and stable flow rate, saving labor, reducing the amount of pump tube consumables essential for peristaltic pump injection, and avoiding inconvenient problems with disinfection and sterilization of pump tubes. [Brief explanation of the drawing]

[0015] [Figure 1] This is a schematic diagram of the oocyte collection device of the present invention. [Figure 2] This is a schematic diagram of the automatic flushing structure of the present invention. [Figure 3] This is a schematic diagram of the automatic flushing structure of the present invention, viewed from a different angle. [Figure 4] This is a schematic diagram of the automatic flushing structure engagement assembly of the present invention. [Figure 5] This is a schematic diagram of the automatic flushing structure syringe clamp mechanism assembly of the present invention. [Figure 6] This is a schematic diagram of the continuously adjustable energy storage tank of the present invention. [Figure 7] This is a diagram showing the connections during operation of the present invention. [Figure 8] This is a diagram illustrating the operating principle of the present invention. [Figure 9] This is a block diagram illustrating the principle of the present invention. [Modes for carrying out the invention]

[0016] Next, refer to the drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] In addition, unless otherwise specified, the technical terms or scientific terms used in this application shall have the general meanings understood by those skilled in the technical field to which the present invention pertains.

[0018] An oocyte collection device, comprising a collection device main body, the collection device main body includes a collection device housing, a liquid crystal display 1, a button 5, an operation switch 6, a pedal flushing port 7, a pedal suction port 8, and a carrying handle 3. The collection device housing is formed by buckling and attaching an upper cover 4 and a bottom shell 11. A liquid crystal display is installed at the front end of the upper cover, a carrying handle is installed at the upper end of the upper cover, a button is installed at the front end of the bottom shell, a pedal flushing port and a pedal suction port are installed at the side end of the bottom shell, and its progressiveness lies in that an automatic flushing structure is installed on the side of the upper cover.

[0019] The automatic flushing structure includes a mounting shell 2, a syringe driving mechanism, and a syringe clamping mechanism. The mounting shell is attached to the side of the upper cover. The mounting shell has a structure with an engaging groove installed on the outside. A syringe clamping mechanism is installed outside the engaging groove, and the syringe 9 is stably clamped by the fitting of the syringe clamping mechanism and the clamping groove. A syringe driving mechanism is provided inside the mounting shell, and the syringe driving mechanism is used to drive the injection push rod of the syringe to inject liquid.

[0020] The syringe drive mechanism includes a guide rail frame 14, a motor 24, a push handle drive screw 17, a syringe push handle 13, a guide rod 22, a push rod 12, and an engagement assembly. The motor-driven push handle drive screw is mounted within the guide rail frame, the motor is connected to the push handle drive screw via a coupling 23, the motor is mounted to the guide rail frame via a support column 18, a triangular slider 39 is fitted onto the push handle drive screw, through holes are provided at all three end corners of the triangular slider, and parts of two end corners of the triangular slider A linear bearing 21 is provided, which is attached to guide rods 22 installed vertically within the guide rail frame. A push rod is rotatably connected to the other end corner of the triangular slider, and a syringe push handle is connected to the end of the push rod. An engagement assembly is provided on the side of the triangular slider, and the push rod controls the engagement and disengagement of the engagement assembly and the push handle drive screw via a projection 41 installed on it. A limiting light coupler 25 is attached to the guide rail frame head 19 at one end of the inner wall of the guide rail frame, away from the motor.

[0021] The engagement assembly includes an engagement block 20, a compression spring 16, and a pressure plate 15. The engagement block 20 includes a hinge portion, an engagement portion 40, and a crimping portion 38. The hinge portion has an engagement portion and a crimping portion at both ends, the hinge portion is hinge-coupled to the side wall of the triangular slider, the lower end surface of the engagement portion fits the threads of the push handle drive screw, the upper end surface of the engagement portion is connected to the pressure plate via a compression spring, the pressure plate is fixed to the triangular slider, and the crimping portion is positioned below the push rod.

[0022] The syringe clamp mechanism includes a clamp plate 10, a spring 26, a blocking piece 27, and a bolt 28. The clamp plate includes a clamp plate body and an extendable shaft located on the lower inside of the clamp plate body. An extendable hole is provided below the central part of the mounting shell. The extendable shaft of the clamp plate is attached to the extendable hole via a spring. A blocking piece that contacts the spring is attached to the end of the extendable shaft via a bolt. A retaining awning that limits the spring is provided at the front end of the extendable hole.

[0023] The motor rotates the push handle drive screw via a coupling, which transmits force to the engagement block 20 on the engagement assembly. The engagement block 20 drives a triangular slider, which moves linearly along the guide rod. The triangular slider is connected to the syringe push handle via the push rod, and as the triangular slider moves, the syringe push handle also moves. At this time, the syringe push handle pushes the syringe to inject liquid. When the triangular slider moves to its limit position, the optical coupler detects the signal and transmits a corresponding signal to the system. If the syringe needs to be changed, rotating the syringe push handle counterclockwise causes the pressing block on the push rod to apply force to the crimping portion of the engagement block 20, lifting the engagement portion and separating it from the push handle drive screw. At this time, the syringe push handle can move freely back and forth along the guide rod. To attach the syringe, pull the syringe clamp plate outwards and rotate it 90 degrees clockwise. After attaching the syringe, rotate the syringe clamp plate 90 degrees counterclockwise. The pressure plate will then firmly press the syringe against the clamp plate using spring force. This design is applicable to syringes of different diameters. The negative pressure energy storage tank within the sampling device body is a steplessly adjustable energy storage tank, which includes an energy storage tank body 30, an air nozzle 29, a piston 31, a piston drive screw 36, a stepping motor 37, a bracket 32, an optical coupler 34, an optical coupler sheet 33, and an optical coupler baffle 35. An air nozzle is provided at the front end of the energy storage tank body, a piston is installed inside the energy storage tank body, the piston is driven to extend and retract via a piston drive screw by a stepping motor located at the rear of the energy storage tank body, an optical coupler baffle is connected to the rear end of the piston drive screw, an optical coupler sheet is provided below the optical coupler baffle, the optical coupler sheet is connected to the bracket with bolts, the bracket is attached inside the sampling device body with bolts, and an optical coupler is provided at the rear end of the optical coupler sheet.

[0024] During operation, the piston drive screw rotates with the stepping motor, moving forward or backward. The piston drive screw is connected to the piston, which moves the piston, thereby adjusting the capacity of the energy storage tank. After adjusting to the position, the stepping motor automatically locks the motor shaft to maintain the capacity of the energy storage tank. The position where the optical coupler baffle reaches the optical coupler is zero.

[0025] The sampling device body houses a central microprocessor controller. The input terminals of the central microprocessor controller are connected to a suction pedal, a negative pressure value setting keyboard, a flushing pedal, and a pressure sensor, respectively. The liquid crystal display of the sampling device body is bidirectionally connected to the central microprocessor controller. The output terminals of the central microprocessor controller are connected to an automatic flushing structure, a negative pressure pump, an automatic pressure adjustment controller, an air release valve, a steplessly adjustable energy storage tank, and a switch valve, respectively. The liquid crystal display is a 5.0-inch DC80480F050_3111_0C serial port screen with capacitive touch, a resolution of 800*480, a 32-bit processor, JPEG image support, 128Mbit storage capacity, RS232 communication, and a display accuracy of ±5mmHg. The central microprocessor controller is model STM32F103C8T6, the vacuum pump is model MB20DC, the pressure sensor is model XGZP6857100KPGPN, and the solenoid valve is model 3V308NCF, which has a large diameter and fast response. The operating switch is connected to a switch valve (model CPV15).

[0026] The central microprocessor controller controls the negative pressure pump to generate negative pressure, which is then adjusted by an automatic pressure adjustment controller. After adjustment, the pressure is stored in a continuously adjustable energy storage tank, and the user controls a solenoid valve as needed to output the desired pressure. The output pressure is constant, and the airflow is stable. The central microprocessor controller controls the automatic flushing structure to inject liquid. The automatic flushing structure uses the rotation of a motor to move the syringe push handle, injecting the liquid in the syringe fixed to the mounting shell into the human body.

[0027] This invention innovatively designs an automated flushing structure suitable for flushing during oocyte retrieval surgery. It offers high fluid volume accuracy and stable flow rate, saving labor, reducing the use of pump tubing consumables essential for peristaltic pump injection, and simultaneously avoiding the inconvenience of disinfecting and sterilizing pump tubing.

[0028] Infinitely adjustable energy storage tanks allow for stepless adjustment of the tank's capacity as needed. Smaller capacities make it easier to set the target negative pressure, while larger capacities result in more stable output negative pressure.

[0029] The system structure, consisting of a negative pressure pump, automatic flushing mechanism, continuously adjustable energy storage tank, and automatic pressure adjustment controller, provides a high-precision negative pressure host system with constant pressure and stable airflow. The overall operation of the device is convenient, making it suitable for clinical use.

[0030] After activating the collection device, setting the usage parameters and pressing the operation switch automatically adjusts the continuously adjustable energy storage tank to the set capacity, while simultaneously activating the negative pressure pump. Once the system pressure reaches the set value, the system adjusts the pressure via an automatic pressure adjustment controller to maintain the system negative pressure at the set value. If suction is required during surgery, pressing the suction pedal opens the solenoid valve and outputs negative pressure. If flushing is required during surgery, pressing the flushing pedal controls the system's automatic flushing mechanism, injecting follicular fluid into the follicle according to the set volume and flow rate to flush the follicle.

[0031] The embodiments and drawings of the present invention are disclosed for illustrative purposes only, but it will be understood by those skilled in the art that various substitutions, changes, and modifications are possible without departing from the spirit and scope of the invention and the appended claims. Accordingly, the scope of the invention is not limited to what is disclosed in the embodiments and drawings. [Explanation of Symbols]

[0032] 1- LCD display 2-Mounting Shell 3. Carrying handle 4- Top cover 5-button 6. Operation switch 7-Pedal flushing port 8-Pedal Suction Port 9-Syringe 10-Clamp Plate 11-Bottom Shell 12-Pushrod 13- Syringe push handle 14- Guide Rail Frame 15-Pressure Plate 16-Compression Spring 17-Push Handle Drive Screw 18-Strut 19- Guide Rail Frame Head 20-Engagement Block 21-Linear bearing 22-Guide Rod 23-Coupling 24-Motor 25-Limiting Optical Coupler 26-Spring 27-Blocking Pieces 28-volt 29-Air Nozzle 30-Energy Storage Tank Body 31-Piston 32-Bracket 33-Optical Coupler Sheet 34-Optical Coupler 35-Optical Coupler Baffle 36-Piston Drive Screw 37-Stepping motor 38 - Crimping section 39 - Triangular Slider 40-Engaging part 41-protrusion

Claims

1. An automatic flushing structure that is convenient to operate, comprising a mounting shell, a syringe drive mechanism, and a syringe clamp mechanism, wherein the mounting shell has a structure in which a locking groove is provided on the side, the syringe clamp mechanism is provided on the outside of the locking groove, and the syringe drive mechanism is provided inside the mounting shell.

2. The syringe drive mechanism includes a guide rail frame, a motor, a push handle drive screw, a syringe push handle, a guide rod, a push rod, and an engagement assembly, wherein a motor-driven push handle drive screw is mounted within the guide rail frame, a triangular slider is fitted onto the push handle drive screw, a portion of both ends of the triangular slider is attached to guide rods mounted above and below within the guide rail frame, a push rod is rotatably connected to the other end of the triangular slider, a syringe push handle is connected to the end of the push rod, an engagement assembly is provided on the side of the triangular slider, the push rod controls the engagement and disengagement of the engagement assembly and the push handle drive screw via a projection mounted thereon, and a limiting light coupler is attached to the inner wall of the guide rail frame at one end away from the motor, characterized in that it is an automatic flushing structure convenient for operation as described in claim 1.

3. The engagement assembly comprises an engagement block, a compression spring, and a pressure plate, wherein the engagement block comprises a hinge portion, an engagement portion, and a crimping portion, the hinge portion having an engagement portion and a crimping portion at both ends, the hinge portion being hinge-coupled to the side wall of a triangular slider, the lower end surface of the engagement portion fitting the threads of a push handle drive screw, the upper end surface of the engagement portion having a pressure plate connected via a compression spring, the pressure plate being fixed to the triangular slider, and the crimping portion being positioned below the push rod, thus providing an automatic flushing structure convenient for operation as described in 2.

4. The syringe clamp mechanism includes a clamp plate, a spring, a blocking piece, and a bolt, wherein the clamp plate includes a clamp plate body and an extendable shaft installed on the lower inside of the clamp plate body, an extendable hole is provided in the lower central part of the mounting shell, the extendable shaft of the clamp plate is attached to the extendable hole via a spring, and a blocking piece that contacts the spring is attached to the end of the extendable shaft via a bolt, characterized in that it is an automatic flushing structure convenient for operation as described in claim 1.

5. An oocyte collection device including a collection device body, characterized in that an automatic flushing structure according to any one of claims 1 to 4 is installed on the side of the collection device body.

6. The oocyte collection device according to claim 5, wherein the negative pressure energy storage tank inside the collection device body is an infinitely adjustable energy storage tank, and the infinitely adjustable energy storage tank includes an energy storage tank body, an air nozzle, a piston, a piston drive screw, a stepping motor, a bracket, an optical coupler, an optical coupler sheet, and an optical coupler baffle, an air nozzle is provided at the front end of the energy storage tank body, a piston is installed inside the energy storage tank body, the piston is driven to extend and retract via a piston drive screw by a stepping motor located at the rear of the energy storage tank body, an optical coupler baffle is connected to the rear end of the piston drive screw, an optical coupler sheet is provided below the optical coupler baffle, the optical coupler sheet is connected to a bracket with bolts, the bracket is attached inside the collection device body with bolts, and an optical coupler is provided at the rear end of the optical coupler sheet.

7. The oocyte collection device according to claim 5, characterized in that a central microprocessor controller is provided inside the collection device body, a suction pedal, a negative pressure value setting keyboard, a flushing pedal, and a pressure sensor are connected to the input terminals of the central microprocessor controller, a liquid crystal display of the collection device body is connected bidirectionally to the central microprocessor controller, and an automatic flushing structure, a negative pressure pump, an automatic pressure adjustment controller, an air release valve, a steplessly adjustable energy storage tank, and a switch valve are connected to the output terminals of the central microprocessor controller, respectively.

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