Easy-to-operate automatic flushing structure and oocyte acquisition device

Abstract

Provided is an ease-to-operate automatic flushing structure, comprising a mounting housing (2), an injector driving mechanism, and an injector clamping mechanism. The mounting housing (2) is a structure with a clamping groove on a side portion thereof, and the injector clamping mechanism is arranged on an outer side of the clamping groove. The injector driving mechanism is arranged in the mounting housing (2). Also provided is an oocyte acquisition device, comprising an acquisition device body. An automatic flushing structure is arranged on a side portion of the acquisition device body.

Description

An easy-to-operate automatic flushing structure and oocyte collection instrument Technical Field

[0001] The present invention belongs to the field of medical instruments and relates to a device for reproductive surgery, in particular to an automatic flushing structure and an oocyte collection instrument that are easy to operate. Background Art

[0002] An oocyte collection device is a specialized device developed for extracting oocytes during assisted reproductive surgery. Currently, most oocyte collection devices on the market only function to retrieve eggs, while the flushing fluid is manually injected through a syringe, which is inconvenient to operate.

[0003] The utility model patent, publication number CN214966446U, discloses a negative pressure aspirator for egg retrieval. The device's flushing mechanism consists of a peristaltic pump driven by a stepper drive unit and a test tube for flushing fluid. The peristaltic pump is mounted on the side upper shell of the housing. The pump's inlet is connected to the test tube for flushing fluid via a pipeline, while the pump's outlet is connected to a double-lumen egg retrieval needle via a pipeline. While the device achieves automatic flushing, clinical use requires the peristaltic pump to be connected to sterile tubes connected to the test tube for flushing fluid and the double-lumen egg retrieval needle, making preparations for egg retrieval more inconvenient.

[0004] In view of this, an automatic flushing structure and an oocyte collection instrument that are easy to operate are proposed, which can further facilitate the egg retrieval operation and improve the egg retrieval efficiency.

[0005] Summary of the Invention

[0006] The purpose of the present invention is to provide an automatic flushing structure and an oocyte collection instrument that are easy to operate, so as to overcome the problems raised in the above-mentioned background technology.

[0007] The present invention solves the technical problem by the following technical solutions:

[0008] The invention discloses an automatic flushing structure with convenient operation, comprising a mounting shell, a syringe driving mechanism and a syringe clamping mechanism. The mounting shell is a structure with a clamping groove on the side, a syringe clamping mechanism is provided on the outside of the clamping groove, and a syringe driving mechanism is provided inside the mounting shell.

[0009] Moreover, the syringe driving mechanism includes a guide rail frame, a motor, a push handle driving screw, a syringe push handle, a guide rod, a push rod, and an engaging assembly. A push handle driving screw driven by a motor is installed in the guide rail frame, and a triangular slider is mounted on the push handle driving screw. The two end corners of the triangular slider are respectively mounted on the guide rods installed up and down in the guide rail frame. A push rod is rotatably connected to the other end corner of the triangular slider, and the syringe push handle is connected to the end of the push rod. An engaging assembly is provided on the side of the triangular slider. The push rod controls the engagement and separation of the engaging assembly and the push handle driving screw through the protrusion provided thereon, and a limit optical coupler is installed on the inner wall of the guide rail frame at the end away from the motor.

[0010] Moreover, the engaging assembly includes an engaging block, a compression spring and a pressure plate. The engaging block includes a hinged portion, an engaging portion and a crimping portion. The engaging portion and the crimping portion are respectively provided at both ends of the hinged portion. The hinged portion is hinged on the side wall of the triangular slider. The lower end face of the engaging portion is adapted to the thread on the push handle driving screw. The upper end face of the engaging portion is connected to the pressure plate through a compression spring. The pressure plate is fixed on the triangular slider, and the crimping portion is placed below the push rod.

[0011] Moreover, the syringe clamping mechanism includes a splint, a spring, a baffle and a screw. The splint includes a clamping plate body and a telescopic shaft arranged at the lower inner side of the clamping plate body. A telescopic hole is provided at the lower middle part of the mounting shell. The telescopic shaft of the splint is passed through the telescopic hole through a spring, and a baffle abutting the spring is installed at the end of the telescopic shaft through a screw.

[0012] An oocyte collecting instrument comprises an instrument body, wherein an automatic flushing structure is provided on the side of the instrument body.

[0013] Moreover, the negative pressure energy storage tank in the collector body is an infinitely adjustable energy storage tank, which includes an energy storage tank body, an air nozzle, a piston, a piston driving screw, a stepping motor, a bracket, an optical coupler, an optical coupler seat and an optical coupler baffle. An air nozzle is provided at the front end of the energy storage tank body, and a piston is provided inside the energy storage tank body. The piston is driven to extend and retract by a stepping motor placed at the rear of the energy storage tank body through a piston driving screw. An optical coupler baffle is connected to the rear end of the piston driving screw, and an optical coupler seat is provided at the lower part of the optical coupler baffle. The optical coupler seat is connected to the bracket by screws, and the bracket is installed inside the collector body by screws. An optical coupler is provided at the rear end of the optical coupler seat.

[0014] Moreover, a central microprocessor controller is provided inside the collector body, and the input end of the central microprocessor controller is respectively connected to the suction foot pedal, the negative pressure value setting keyboard, the flushing foot pedal and the pressure sensor. The liquid crystal display screen on the collector body is bidirectionally connected to the central microprocessor controller, and the output end of the central microprocessor controller is respectively connected to the automatic flushing structure, the negative pressure pump, the automatic pressure regulating controller, the air release valve, the stepless adjustable energy storage tank and the switch valve.

[0015] The advantages and beneficial effects of the present invention are:

[0016] The present invention provides an easy-to-operate automatic flushing structure and oocyte collection instrument. These instruments are used in conjunction with a disposable egg retrieval needle during the flushing operation. The instrument provides a negative pressure source with constant pressure and stable airflow for the disposable egg retrieval needle. The instrument utilizes a stepless adjustable energy storage tank, which allows for stepless adjustment of the tank's capacity as needed. When the tank's capacity is small, it is easier to establish the target negative pressure. When the tank's capacity is large, the output negative pressure is more stable. The instrument utilizes an automatic flushing structure for injection during surgical flushing, resulting in high liquid volume accuracy and a stable flow rate. This reduces labor and the use of consumable pump tubing, essential for peristaltic pump injection methods, while also avoiding the inconvenience of disinfecting and sterilizing the pump tubing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic structural diagram of an oocyte collection instrument according to the present invention;

[0018] FIG2 is a schematic structural diagram of the automatic flushing structure of the present invention;

[0019] FIG3 is a schematic structural diagram of the automatic flushing structure of the present invention from another angle;

[0020] FIG4 is a schematic diagram showing the structure of the engagement assembly of the automatic flushing structure of the present invention;

[0021] FIG5 is a schematic structural diagram illustrating the assembly of the clamping mechanism of the automatic flushing structure syringe of the present invention;

[0022] FIG6 is a schematic structural diagram of the stepless regulation energy storage tank of the present invention;

[0023] FIG7 is a connection diagram of the present invention when it is working;

[0024] FIG8 is a diagram showing the working principle of the present invention;

[0025] FIG9 is a block diagram showing the principle of the present invention.

[0026] Reference numerals

[0027] 1-LCD display, 2-mounting shell, 3-carrying handle, 4-upper cover, 5-button, 6-working switch, 7-pedal flushing port, 8-pedal suction port, 9-syringe, 10-clamping plate, 11-bottom shell, 12-push rod, 13-syringe push handle, 14-guide rail frame, 15-pressure plate, 16-compression spring, 17-push handle drive screw, 18-pillar, 19-guide rail frame head, 20-engaging block, 21-straight Linear bearing, 22-guide rod, 23-coupling, 24-motor, 25-limit optical coupler, 26-spring, 27-block, 28-screw, 29-air nozzle, 30-energy storage tank, 31-piston, 32-bracket, 33-optical coupler seat, 34-optical coupler, 35-optical coupler baffle, 36-piston drive screw, 37-stepping motor, 38-crimping part, 39-triangular slider, 40-meshing part, 41-bump. DETAILED DESCRIPTION

[0028] 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0030] An oocyte collection instrument includes an instrument body, which includes an instrument housing, a liquid crystal display 1, a button 5, a working switch 6, a foot-operated flushing port 7, a foot-operated suction port 8, and a carrying handle 3. The instrument housing is composed of an upper cover 4 and a bottom shell 11 that are buckled together. A liquid crystal display is provided at the front end of the upper cover, a carrying handle is provided at the upper end of the upper cover, a button is provided at the front end of the bottom shell, and a foot-operated flushing port and a foot-operated suction port are provided at the side end of the bottom shell. The innovation of the instrument lies in that an automatic flushing structure is provided on the side of the upper cover.

[0031] The automatic flushing structure includes a mounting shell 2, a syringe driving mechanism and a syringe clamping mechanism. The mounting shell is installed on the side of the upper cover. The mounting shell is a structure with a card-mounting groove on the outside. A syringe clamping mechanism is provided on the outside of the card-mounting groove. The syringe 9 is stably clamped by the cooperation between the syringe clamping mechanism and the card-mounting groove. A syringe driving mechanism is provided in the mounting shell. The syringe driving mechanism is used to drive the injection push rod of the syringe to realize the injection of the liquid.

[0032] The syringe drive mechanism includes a guide 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. A push handle drive screw driven by a motor is installed in the guide frame, and the motor is connected to the push handle drive screw through a coupling 23. The motor is installed on the guide frame through a pillar 18. A triangular slider 39 is mounted on the push handle drive screw. Through holes are provided on the three end corners of the triangular slider. Linear bearings 21 are provided at the two end corners of the triangular slider, and are respectively installed on the guide rod 22 installed up and down in the guide frame. A push rod is rotatably connected to the other end corner of the triangular slider, and the 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 separation of the engagement assembly and the push handle drive screw through the protrusion 41 provided thereon. A limit optical coupler 25 is installed on the guide frame head 19 at the end away from the motor on the inner wall of the guide frame.

[0033] The engaging assembly includes an engaging block 20, a compression spring 16 and a pressure plate 15. The engaging block 20 includes a hinged portion, a meshing portion 40 and a crimping portion 38. The engaging portion and the crimping portion are respectively provided at both ends of the hinged portion. The hinged portion is hinged on the side wall of the triangular slider. The lower end face of the meshing portion is adapted to the thread on the push handle driving screw. The upper end face of the meshing portion is connected to the pressure plate through a compression spring. The pressure plate is fixed on the triangular slider, and the crimping portion is placed below the push rod.

[0034] The syringe clamping mechanism includes a splint 10, a spring 26, a baffle 27 and a screw 28. The splint includes a clamping plate body and a telescopic shaft arranged at the lower inner side of the clamping plate body. A telescopic hole is provided at the lower middle part of the mounting shell. The telescopic shaft of the splint is installed in the telescopic hole through a spring. A baffle that abuts the spring is installed at the end of the telescopic shaft through a screw, and a baffle for a limit spring is provided at the front end of the telescopic hole.

[0035] The motor drives the push handle through a coupling to rotate the screw, which in turn transmits force to the meshing block 20 on the meshing assembly. The meshing block 20 drives the triangular slider to move linearly along the guide rod. The triangular slider is connected to the syringe push handle via a push rod. When the triangular slider moves, the syringe push handle also moves. At this point, the syringe push handle pushes the syringe to inject liquid. When the triangular slider reaches its limit, the optical coupler detects a signal and transmits the corresponding signal to the system. To replace the syringe, the syringe push handle can be rotated counterclockwise. The pressure block on the push rod applies force to the crimping portion of the meshing block 20, lifting the meshing portion and separating it from the push handle drive screw. The syringe push handle can now move freely back and forth along the guide rod. To install the syringe, pull the syringe clamp outward and rotate it 90 degrees clockwise. After the syringe is installed, rotate the syringe clamp 90 degrees counterclockwise again. The pressure plate, acting under the action of the spring, compresses the syringe. This structure is suitable for syringes of different diameters.

[0036] The negative pressure energy storage tank in the collector body is a stepless adjustable energy storage tank, which includes an energy storage tank body 30, an air nozzle 29, a piston 31, a piston driving screw 36, a stepping motor 37, a bracket 32, an optical coupler 34, an optical coupler seat 33 and an optical coupler baffle 35. An air nozzle is provided at the front end of the energy storage tank body, and a piston is provided inside the energy storage tank body. The piston is driven to retract and retract by a stepping motor placed at the rear of the energy storage tank body through a piston driving screw. An optical coupler baffle is connected to the rear end of the piston driving screw, and an optical coupler seat is provided at the lower part of the optical coupler baffle. The optical coupler seat is connected to the bracket by screws, and the bracket is installed inside the collector body by screws. An optical coupler is provided at the rear end of the optical coupler seat.

[0037] During operation, the piston drive screw rotates with the stepper motor, moving forward or backward. The piston drive screw is connected to the piston, driving the piston to move, thereby adjusting the volume of the energy storage tank. Once adjusted to the correct position, the stepper motor automatically locks the motor shaft to maintain the energy storage tank volume. When the optocoupler baffle reaches the optocoupler position, it is zero.

[0038] The instrument's main body houses a central microprocessor controller. Its inputs are connected to a suction pedal, a negative pressure setting keypad, a flushing pedal, and a pressure sensor. The instrument's LCD display is bidirectionally connected to the central microprocessor. Its outputs are connected to the automatic flushing mechanism, a negative pressure pump, an automatic pressure regulator, a solenoid valve, a stepless adjustable accumulator tank, and a switching valve. The LCD is a 5.0-inch DC80480F050_3111_0C serial port display with capacitive touch, an 800*480 resolution, a 32-bit processor, JPEG image support, 128Mbit storage, RS232 communication, and a display accuracy of ±5 mmHg. The central microprocessor is an STM32F103C8T6; the negative pressure pump is an MB20DC; the pressure sensor is an XGZP6857100KPGPN; and the solenoid valve is a 3V308NCF, with a large diameter and fast response. The working switch is connected to the switch valve, model CPV15.

[0039] A central microprocessor controller controls the negative pressure pump to generate negative pressure. This pressure is then adjusted by an automatic pressure regulator and stored in a steplessly adjustable accumulator tank. The user then controls the solenoid valve to deliver the desired pressure, ensuring constant pressure and stable airflow. The central microprocessor controller also controls the automatic liquid injection mechanism. The automatic liquid injection mechanism uses the motor to drive the syringe push handle, injecting the liquid from the syringe, which is fixed to the mounting housing, into the patient.

[0040] The present invention innovatively designs an automatic flushing structure suitable for flushing during oocyte extraction surgery. It has high liquid volume accuracy and stable flow rate, saves labor, reduces the use of pump tube consumables that are indispensable for peristaltic pump injection, and avoids the inconvenience of pump tube disinfection and sterilization.

[0041] The infinitely adjustable energy storage tank can adjust the capacity of the energy storage tank infinitely as needed. When the capacity is small, it is easier to establish the target negative pressure. When the capacity is large, the output negative pressure is more stable.

[0042] The system structure of negative pressure pump, automatic flushing structure, stepless adjustable energy storage tank and automatic pressure regulating controller can provide a high-precision negative pressure host system with constant pressure and stable airflow. The whole machine is easy to operate and convenient for clinical use.

[0043] After turning on the instrument and setting the operating parameters, pressing the operating switch automatically adjusts the infinitely adjustable energy storage tank to the set capacity. Simultaneously, the negative pressure pump activates, and the system pressure reaches the set value. The system then uses an automatic pressure regulator to adjust the pressure and maintain the set negative pressure. 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 to inject follicular fluid at the set volume and flow rate to flush the follicles.

[0044] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. An automatic flushing structure that is easy to operate, characterized in that: The invention comprises a mounting shell, a syringe driving mechanism and a syringe clamping mechanism. The mounting shell is a structure with a clamping groove arranged on the side, a syringe clamping mechanism is arranged on the outer side of the clamping groove, and a syringe driving mechanism is arranged inside the mounting shell.

2. The conveniently operated automatic flushing structure according to claim 1 is characterized in that: The syringe driving mechanism includes a guide frame, a motor, a push handle driving screw, a syringe push handle, a guide rod, a push rod and an engagement assembly. A push handle driving screw driven by a motor is installed in the guide frame, and a triangular slider is mounted on the push handle driving screw. The two end corners of the triangular slider are respectively mounted on the guide rods installed up and down in the guide frame. A push rod is rotatably connected to the other end corner of the triangular slider, and the 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 separation of the engagement assembly and the push handle driving screw through a protrusion arranged thereon, and a limit optical coupler is installed on the inner wall of the guide frame at one end away from the motor.

3. The conveniently operated automatic flushing structure according to claim 2 is characterized in that: The meshing assembly includes an meshing block, a compression spring and a pressure plate. The meshing block includes a hinged portion, a meshing portion and a crimping portion. The meshing portion and the crimping portion are respectively arranged at both ends of the hinged portion. The hinged portion is hinged on the side wall of the triangular slider. The lower end surface of the meshing portion is adapted to the thread on the push handle driving screw. The upper end surface of the meshing portion is connected to the pressure plate through a compression spring. The pressure plate is fixed on the triangular slider. The crimping portion is placed below the push rod.

4. The conveniently operated automatic flushing structure according to claim 1 is characterized in that: The syringe clamping mechanism includes a clamping plate, a spring, a baffle and a screw. The clamping plate includes a clamping plate body and a telescopic shaft arranged at the lower inner side of the clamping plate body. A telescopic hole is provided at the lower middle part of the mounting shell. The telescopic shaft of the clamping plate is installed in the telescopic hole through a spring, and a baffle abutting the spring is installed at the end of the telescopic shaft through a screw.

5. An oocyte collection instrument, comprising an oocyte collection instrument body, characterized in that: An automatic flushing structure as claimed in any one of claims 1 to 4 is provided on the side of the collector body.

6. The oocyte collection instrument according to claim 5, characterized in that: The negative pressure energy storage tank in the collector body is an infinitely adjustable energy storage tank, which includes an energy storage tank body, an air nozzle, a piston, a piston driving screw, a stepper motor, a bracket, an optical coupler, an optical coupler seat and an optical coupler baffle. An air nozzle is provided at the front end of the energy storage tank body, and a piston is provided inside the energy storage tank body. The piston is driven to extend and retract by a stepper motor arranged at the rear of the energy storage tank body through a piston driving screw. An optical coupler baffle is connected to the rear end of the piston driving screw, and an optical coupler seat is provided at the lower part of the optical coupler baffle. The optical coupler seat is connected to the bracket by screws, and the bracket is installed inside the collector body by screws. An optical coupler is provided at the rear end of the optical coupler seat.

7. The oocyte collection instrument according to claim 5, characterized in that: A central microprocessor controller is arranged inside the collector body, and a suction pedal, a negative pressure value setting keyboard, a flushing pedal and a pressure sensor are respectively connected to the input end of the central microprocessor controller. The liquid crystal display screen on the collector body is bidirectionally connected to the central microprocessor controller, and an automatic flushing structure, a negative pressure pump, an automatic pressure regulating controller, an air release valve, a stepless adjustable energy storage tank and a switch valve are respectively connected to the output end of the central microprocessor controller.

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