Automatic liquid flushing structure convenient to operate and oocyte collecting instrument

Abstract

The utility model belongs to the field of medical instruments, and relates to an automatic liquid flushing structure convenient to operate, which comprises a mounting shell, an injector driving mechanism and an injector clamping mechanism, the side part of the mounting shell is provided with a clamping groove, the injector clamping mechanism is arranged on the outer side of the clamping groove, and the injector driving mechanism is arranged in the mounting shell. The utility model further relates to an oocyte collecting instrument, and an automatic liquid flushing structure is arranged on the side portion of the collecting instrument body. The liquid injection device is convenient to operate, high in liquid amount precision and stable in flow speed, saves labor, reduces use of pump pipe consumables indispensable in a peristaltic pump liquid injection mode, and meanwhile avoids the problem that the pump pipe is inconvenient to disinfect and sterilize.

Description

Technical Field

[0001] The utility model 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 which are easy to operate. Background Art

[0002] The oocyte collection instrument is a special device developed for extracting oocytes in assisted reproductive surgery. At present, most oocyte collection instruments on the market only have the function of egg retrieval, while the flushing fluid is injected manually through a needle, which is inconvenient to operate.

[0003] Publication No. CN214966446U discloses an egg negative pressure aspirator for egg retrieval operation, wherein the flushing mechanism is composed of a peristaltic pump driven by a stepping drive integrated machine and a flushing liquid test tube, a peristaltic pump is installed on the side upper shell of the housing, 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 the double-chamber egg retrieval needle through a pipeline. Although it realizes the function of automatic flushing, from the perspective of clinical use, when in use, it is necessary to connect the peristaltic pump to a sterile tube connected to the flushing liquid test tube and the double-chamber egg retrieval needle, which makes the preparation work before egg retrieval more inconvenient.

[0004] In view of this, in order to further facilitate the egg retrieval operation and improve the egg retrieval efficiency, the present utility model is proposed. Utility Model Content

[0005] The utility model aims to provide an automatic flushing structure and an oocyte collection instrument which are easy to operate, so as to overcome the problems raised in the above-mentioned background technology.

[0006] The utility model solves the technical problem through the following technical solutions:

[0007] A conveniently operated automatic flushing structure is characterized by comprising a mounting shell, a syringe driving mechanism and a syringe clamping mechanism, wherein the mounting shell is a structure with a card-mounting groove on the side, a syringe clamping mechanism is provided on the outside of the card-mounting groove, and a syringe driving mechanism is provided inside the mounting shell.

[0008] Moreover, 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 passed through 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 the end away from the motor.

[0009] Moreover, 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.

[0010] Moreover, 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.

[0011] An oocyte collection instrument comprises an instrument body, characterized in that an automatic flushing structure is arranged on the side of the instrument body.

[0012] Moreover, the negative pressure energy storage tank in the collector body is a steplessly 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 retract 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, and an optical coupler is provided at the rear end of the optical coupler seat.

[0013] Moreover, a central microprocessor controller is provided 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, a 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.

[0014] The advantages and beneficial effects of the utility model are:

[0015] This easy-to-operate automatic flushing structure and oocyte collection instrument are used in conjunction with a disposable egg retrieval needle during the flushing operation. The collection instrument provides a negative pressure source with constant pressure and stable airflow for the disposable egg retrieval needle. The collection instrument adopts a stepless adjustable energy storage tank, and the capacity of the energy storage tank can be adjusted steplessly as needed. It is easier to establish the target negative pressure when the capacity is small, and the output negative pressure is more stable when the capacity is large. The collection instrument adopts an automatic flushing structure for liquid injection during surgical flushing. The liquid volume has high accuracy and stable flow rate, which saves labor and reduces the use of pump tube consumables that are indispensable for the peristaltic pump injection method, while avoiding the problem of inconvenience in disinfecting and sterilizing the pump tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the oocyte collection instrument of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the automatic flushing structure of the utility model;

[0018] Figure 3 This is a structural schematic diagram of the automatic flushing structure of the utility model from another angle;

[0019] Figure 4 This is a schematic diagram of the structure of the automatic flushing structure engagement assembly of the utility model;

[0020] Figure 5 This is a structural diagram of the automatic flushing structure syringe clamping mechanism assembly of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the stepless regulation energy storage tank of the utility model;

[0022] Figure 7 It is the connection diagram when the utility model is working;

[0023] Figure 8 This is a working principle diagram of the utility model;

[0024] Fig. 9 This is a principle block diagram of the utility model.

[0025] Reference numerals

[0026] 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-clamp, 11-bottom shell, 12-push rod, 13-syringe push handle, 14-guide frame, 15-pressure plate, 16-compression spring, 17-push handle drive screw, 18-pillar, 19-guide frame head, 20-guide rod, 21-straight Linear bearing, 22-guide rod, 23-coupling, 24-motor, 25-limit optical coupler, 26-spring, 27-blocking plate, 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

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0029] An oocyte collection instrument comprises an instrument body, wherein the instrument body comprises an instrument shell, a liquid crystal display screen 1, a button 5, a working switch 6, a foot-operated liquid flushing port 7, a foot-operated suction port 8, and a carrying handle 3. The instrument shell is formed by an upper cover 4 and a bottom shell 11 which are buckled together. A liquid crystal display screen is arranged at the front end of the upper cover, a carrying handle is arranged at the upper end of the upper cover, a button is arranged at the front end of the bottom shell, and a foot-operated liquid flushing port and a foot-operated suction port are arranged at the side end of the bottom shell. The innovation of the invention lies in that an automatic liquid flushing structure is arranged at the side of the upper cover.

[0030] 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 of 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.

[0031] 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. 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 worn on the guide rod 20 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 with the push handle drive screw through a protrusion 41 provided thereon. A limit optical coupler 25 is installed on the guide frame head 19 at one end of the inner wall of the guide frame away from the motor.

[0032] The meshing assembly includes a meshing block, a compression spring 16 and a pressure plate 15. The meshing block includes a hinged portion, a meshing portion 40 and a crimping portion 38. The meshing 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 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, and the crimping portion is placed below the push rod.

[0033] 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 inserted into the telescopic hole through a spring. A baffle for abutting 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.

[0034] The motor drives the push handle to drive the screw to rotate through the coupling. The push handle drives the screw to transmit the force to the meshing block on the meshing assembly. The meshing block drives the triangular slider to move linearly along the guide rod. The triangular slider is connected to the syringe push handle through the push rod. When 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 the limit position, the optical coupler will detect the signal and send the corresponding signal to the system. When the syringe needs to be replaced, the syringe push handle can be turned counterclockwise, and the convex block on the push rod can be used to apply force to the crimping part of the meshing block, so that the meshing part is lifted and separated from the push handle drive screw. At this time, the syringe push handle can move freely forward and backward along the guide rod. When installing the syringe, the syringe splint can be pulled outward and rotated 90 degrees clockwise. After the syringe is installed, the syringe splint can be rotated 90 degrees counterclockwise. The pressure plate presses the syringe under the action of the spring force. This structure can be applied to syringes of different diameters.

[0035] The negative pressure energy storage tank in the collector 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 driving screw 36, a stepper 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 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, and an optical coupler is provided at the rear end of the optical coupler seat.

[0036] When working, the piston drive screw will follow the stepper motor to rotate and move forward or backward. The piston drive screw is connected to the piston, and the piston drive screw drives the piston to move, thereby adjusting the volume of the energy storage tank. After adjusting to the position, the stepper motor can automatically lock the motor shaft to maintain the volume of the energy storage tank. The photocoupler baffle reaches the photocoupler position as zero position.

[0037] A central microprocessor controller is provided inside the collector body, and the input end of the central microprocessor controller is respectively connected with a suction pedal, a negative pressure value setting keyboard, a flushing pedal and a pressure sensor. The LCD screen on the collector body is bidirectionally connected with the central microprocessor controller, and the output end of the central microprocessor controller is respectively connected with an automatic flushing structure, a negative pressure pump, an automatic pressure regulating controller, a solenoid valve, a stepless adjustable energy storage tank and a switch valve. The LCD screen is a 5.0-inch DC80480F050_3111_0C configuration serial port screen, capacitive touch, with a resolution of 800*480, a 32-bit processor, support for JPEG images, a storage capacity of 128Mbit, RS232 communication, and a display accuracy of up to ±5mmHg. The model of the central microprocessor controller is STM32F103C8T6; the model of the negative pressure pump is MB20DC; the model of the pressure sensor is XGZP6857100KPGPN; the model of the solenoid valve is 3V308NCF, with a large diameter and fast response. The working switch is connected to the switch valve, model of which is CPV15.

[0038] The central microprocessor controller controls the negative pressure pump to generate negative pressure, and the pressure generated is adjusted by the automatic pressure regulating controller. After adjustment, it is stored in the stepless adjustable energy storage tank. The user controls the solenoid valve to output the expected pressure according to the needs. The output pressure is constant and the airflow is stable. The central microprocessor controller controls the automatic liquid flushing structure to inject liquid. The automatic liquid flushing structure drives the syringe push handle to move through the rotation of the motor, and injects the liquid in the syringe fixed on the mounting shell into the human body.

[0039] The utility model innovatively designs an automatic flushing structure suitable for flushing during oocyte extraction surgery, which 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 problem of inconvenience in disinfecting and sterilizing the pump tube.

[0040] The steplessly adjustable energy storage tank can adjust the capacity of the energy storage tank steplessly as needed. It is easier to establish the target negative pressure when the capacity is small, and the output negative pressure is more stable when the capacity is large.

[0041] 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.

[0042] After turning on the collector, set the use parameters, press the working switch, the stepless adjustable energy storage tank will automatically adjust to the set capacity, and the negative pressure pump will start at the same time. The system pressure reaches the set value, and the system adjusts the pressure through the automatic pressure regulating controller to maintain the system negative pressure at the set value. When suction is required during surgery, step on the suction pedal, the solenoid valve opens, and outputs negative pressure. When flushing is required during surgery, step on the flushing pedal, and the system controls the automatic flushing structure to inject follicular fluid into the follicles according to the set liquid volume and flow rate to flush the follicles.

[0043] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate 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, 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, 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, characterized in that: 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 inserted into 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. An oocyte collection instrument according to claim 5, characterized in that: The negative pressure energy storage tank in the collector body is a steplessly 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, and an optical coupler is provided at the rear end of the optical coupler seat.

7. An 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 steplessly adjustable energy storage tank and a switch valve are respectively connected to the output end of the central microprocessor controller.

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