Flushing connecting device capable of being operated efficiently and double-cavity oocyte collector

Abstract

The utility model discloses a flushing connecting device capable of efficiently operating and a double-cavity oocyte collector, the flushing connecting device comprises a flushing fluid suction tube, a hard connecting tube and a three-way connector, a second port of the flushing fluid suction tube is connected to the hard connecting tube, a first one-way valve is arranged at a first port of the three-way connector, and a second one-way valve is arranged at a second port of the three-way connector. A first port of the three-way connector is connected with a first port of a flushing fluid suction tube, a second port of the three-way connector is connected with an injector, and a third port of the three-way connector is provided with a second one-way valve and is connected with a flushing tube. The double-cavity oocyte collector comprises a double-cavity oocyte collecting needle tube, a washing tube, a liquid medicine filter and the washing connecting device, a first port of the washing tube is connected with a third port of the three-way connector, a second port of the washing tube is connected with a washing cavity of the double-cavity oocyte collecting needle tube, and the liquid medicine filter is arranged on the washing tube. The ovum extractor can be used more efficiently, the operation time can be remarkably saved, and the ovum extraction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of medical apparatus and medical consumables, is used for the oocyte retrieval of human assisted reproductive technology (assisted reproductive technology, ART), and specifically relates to a flushing connecting device and double-cavity oocyte collector capable of efficient operation. BACKGROUND

[0002] With the continuous progress of ART, transvaginal ultrasound-guided puncture oocyte retrieval gradually becomes the routine operation of in vitro fertilization-embryo transfer (IVF-ET) treatment in major reproductive centers. The oocyte retrieval needle (oocyte collector) passes through the support fixed on the transvaginal ultrasound probe, reaches the ovary through the vaginal wall, and can sequentially aspirate each dominant follicle on the same guide wire. At present, the oocyte retrieval needle is mainly divided into single-cavity oocyte retrieval needle and double-cavity oocyte retrieval needle, and most of them rely on imports, and the proportion of domestic products is quite low. Compared with the single-cavity oocyte retrieval needle, the double-cavity oocyte retrieval needle not only can aspirate follicular fluid, but also can repeatedly flush the follicle cavity (including the circulation operation steps such as taking the tube- aspirating-pushing), which is beneficial to improve the oocyte retrieval rate and is commonly used for IVF patients with fewer dominant follicles.

[0003] However, in the process of clinical application, the use of the current double-cavity oocyte retrieval needle also has the following disadvantages:

[0004] (1) easy to be contaminated: in order to repeatedly flush, the syringe needs to be taken into the flushing liquid container containing sterile flushing liquid for aspiration many times, which increases the probability of contaminating the sterile flushing liquid;

[0005] (2) professional exposure of the operator: in order to repeatedly flush, the syringe needle and needle cap need to be removed and put on many times to aspirate and push the sterile flushing liquid, which increases the risk of needle stick injury of the operating doctor;

[0006] (3) affecting the quality of oocytes: oocytes are valuable and fragile, and are extremely sensitive to temperature changes. However, in order to repeatedly flush, the flushing liquid container needs to be taken out of the constant temperature rack many times for aspiration by the syringe, which causes large fluctuations in the temperature of the sterile flushing liquid and affects the quality of oocytes;

[0007] (4) poor feeling of the operator: using a small capacity syringe to push is more smooth, but it needs to be taken out and aspirated many times, which increases the operational complexity, prolongs the oocyte retrieval operation time, and causes fluctuations in the temperature of the sterile flushing liquid; using a large capacity syringe can reduce the aspiration frequency, but it is more laborious to push, and the sterile flushing liquid in the large capacity syringe is prone to cooling.

[0008] The double-cavity oocyte collector disclosed in the Chinese patent application with the application number 2024201587411 solves the above problems, but in the subsequent practice, the inventor finds that the double-cavity oocyte collector still has defects in use, mainly in that: the three-way joint needs to be repeatedly rotated to switch the connection of the pipeline, and air cannot be completely prevented from entering the follicle cavity, which affects the operation efficiency. Therefore, the inventor optimizes and improves the double-cavity oocyte collector. Utility model content

[0009] The first object of the utility model is to provide a flushing connection device.

[0010] The second object of the utility model is to provide a double-cavity oocyte collector with the flushing connection device.

[0011] The utility model can be used more efficiently, and can significantly save operation time.

[0012] The first object of the utility model is realized by the following technical scheme:

[0013] A flushing connection device, comprising a flushing liquid suction pipe and a hard connection pipe, the second port of the flushing liquid suction pipe is fixedly connected to the hard connection pipe, characterized in that: a three-way joint is further included, a one-way valve that only allows entry but not exit is arranged in the first port of the three-way joint, the first port of the three-way joint is connected to the first port of the flushing liquid suction pipe, the second port of the three-way joint is used for being connected to a syringe, a one-way valve that only allows exit but not entry is arranged in the third port of the three-way joint, and the third port of the three-way joint is used for being connected to the needle tube of a double-cavity oocyte collection needle through a flushing pipe.

[0014] The further technical scheme of the utility model is that: the flushing connection device further comprises a flushing liquid container plug, the flushing liquid container plug is provided with a vent hole and a connecting hole, the flushing liquid container plug is used for being plugged into a flushing liquid container, the hard connection pipe passes through the connecting hole, the hard connection pipe is interference-fitted with the connecting hole, the hard connection pipe can be slidably adjusted in the connecting hole, the upper end of the hard connection pipe passes out to the upper side of the flushing liquid container plug, and the second port of the flushing liquid suction pipe is fixedly connected to the upper end of the hard connection pipe.

[0015] The hard connection pipe is further arranged in a structure that can be slidably adjusted, so that it can adapt to flushing liquid containers with different depths and ensure that the tail end of the hard connection pipe can be located at the bottom of the flushing liquid container. The hard connection pipe is convenient to adjust, and can be adjusted by pushing and pulling the upper end thereof.

[0016] The further technical scheme of the utility model is that: a scale mark is arranged on the pipe wall of the hard connection pipe.

[0017] The utility model further sets the scale on the hard connecting pipe, can conveniently adjust the relative position of the hard connecting pipe in advance to adapt to the common washing liquid container for the surgeon.

[0018] The further technical scheme of the utility model is that the flushing connecting device further comprises a flushing pipe connector, the flushing pipe connector is arranged on the third port of the three-way connector, and the flushing pipe connector is used for being connected with the flushing pipe.

[0019] The further technical scheme of the utility model is that the first port of the three-way connector and the first port of the flushing liquid suction pipe are fixedly connected.

[0020] The second object of the utility model is realized by the following technical scheme.

[0021] The utility model discloses a double cavity oocyte collector, which is characterized by comprising a double cavity oocyte needle needle tube, a flushing pipe, a liquid medicine filter and the flushing connecting device, the first port of the flushing pipe is connected with the third port of the three-way connector, the second port of the flushing pipe is connected with the flushing cavity of the double cavity oocyte needle needle tube, and the liquid medicine filter is arranged on the flushing pipe.

[0022] The further technical scheme of the utility model is that the double cavity oocyte collector further comprises an oocyte follicle liquid suction pipe and an oocyte follicle liquid container plug, the first port of the oocyte follicle liquid suction pipe is connected with the suction cavity of the double cavity oocyte needle needle tube, the second port of the oocyte follicle liquid suction pipe is connected on the oocyte follicle liquid container plug, the second port of the oocyte follicle liquid suction pipe penetrates through the oocyte follicle liquid container plug and enters the inside, and the oocyte follicle liquid container plug is used for being plugged on the oocyte follicle liquid container.

[0023] The further technical scheme of the utility model is that a negative pressure suction connector for being connected with an external negative pressure suction device is arranged on the oocyte follicle liquid container plug.

[0024] The further technical scheme of the utility model is that a pipe head is arranged at the first port of the flushing pipe.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] 1, the utility model discloses a three -way connector that is provided with first check valve and second check valve, in the operation process, direct operation syringe can carry out the suction and injection of flushing liquid, and operation is more simple, fast, and the efficiency is higher, can further save the operation time.

[0027] 2, the double cavity oocyte collector of the utility model sets up liquid medicine filter on the flushing pipe, after the filtration of liquid medicine filter, can avoid that the flushing liquid that injects in the follicle cavity has air bubble, influences the imaging of equipment in the operation process. DRAWINGS

[0028] Figure 1is a structure schematic diagram of the flushing connecting device of the embodiment of the utility model;

[0029] Figure 2 is a structure schematic diagram of the double cavity oocyte collector of the embodiment of the utility model;

[0030] Figure 3 is a structure schematic diagram of the tee joint of the embodiment of the utility model;

[0031] Figure 4 is the assembly structure schematic diagram of the flushing liquid container plug and the hard connecting pipe of the embodiment of the utility model;

[0032] Figure 5 is the structure schematic diagram of the double cavity oocyte collector of the embodiment of the utility model when in use.

[0033] The meaning of the reference signs in the drawing is as follows:

[0034] 1-tee joint;101-the first port of tee joint;102-the second port of tee joint;103-the third port of tee joint;2-flushing liquid suction pipe;201-the first port of flushing liquid suction pipe;202-the second port of flushing liquid suction pipe;3-flushing liquid container plug;301-connection hole;302-vent hole;4-hard connecting pipe;401-scale mark;5-flushing pipe connector;6-pipe head;7-flushing pipe;701-the first port of flushing pipe;702-the second port of flushing pipe;8-double cavity oocyte needle tube;9-follicular fluid suction pipe;901-the first port of follicular fluid suction pipe;902-the second port of follicular fluid suction pipe;10-follicular fluid container plug;11-negative pressure suction connector;12-liquid medicine filter;13-first check valve;14-second check valve;15-flushing liquid container;16-follicular fluid container;17-syringe. DETAILED DESCRIPTION

[0035] The utility model is further described below in combination with the embodiment.

[0036] In the description of the utility model, it needs to be understood that the orientation description, such as the orientation or position relation of the indication of up, down, front, back, left, right and the like, is based on the orientation or position relation shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, a particular orientation structure and operation, therefore it can not be understood as the limitation of the utility model.

[0037] In the description of the utility model, if several means one or more, the meaning of multiple is two or more, greater than, less than, exceed and the like are understood as not including the number, above, below, within and the like are understood as including the number. If it is described to the first, the second is only used for distinguishing the purpose of technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0038] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be understood in a broad sense, and the skilled person in the art can reasonably determine the specific meaning of the above words in the utility model combined with the specific content of the technical scheme.

[0039] Embodiment:

[0040] As Figure 1 The flushing connecting device of the embodiment comprises a flushing liquid suction pipe 2, a flushing liquid container plug 3, a tee joint 1, a hard connecting pipe 4 and a flushing pipe connecting head 5.

[0041] The tee joint 1 of the embodiment is a Y-shaped tee joint, which has three ports. Of course, in another embodiment, the tee joint 1 can also be a tee joint of other shapes. As Figure 3 As shown in the figure, a first one-way valve 13 that only allows entry but not exit is arranged in the first port 101 of the tee joint, that is, only the first one-way valve 13 can be used to enter the tee joint 1 from the outside. The first port 101 of the tee joint is fixedly connected with the first port 201 of the flushing liquid suction pipe, and the second port 102 of the tee joint is used to be connected with the syringe 17. A second one-way valve 14 that only allows exit but not entry is arranged in the third port 103 of the tee joint, that is, only the second one-way valve 14 can be used to output from the tee joint 1 to the outside. The flushing pipe connecting head 5 is arranged on the third port 103 of the tee joint. The flushing pipe connecting head 5 is a conventional connecting head, which is used to be connected with the pipe head 6 on the flushing pipe 7.

[0042] The first one-way valve 13 and the second one-way valve 14 are both conventional medical one-way valves. In the embodiment, they are medical one-way valves with a valve extending to the direction of liquid flow, which are in the shape of a duckbill, can flow between the valves in the normal flow, and the valve remains closed in the reverse flow. In another embodiment, other structures of medical one-way valves can also be used.

[0043] The flushing liquid container plug 3 is a rubber plug, which is made of silica gel, and is used to be plugged on the flushing liquid container 15. The flushing liquid container plug 3 is provided with a connecting hole 301 and a vent hole 302. The vent hole 302 penetrates through the flushing liquid container plug 3, and the inside of the flushing liquid container 15 can be communicated with the outside through the vent hole 302 during use, so as to maintain the atmospheric pressure in the flushing liquid container 15. The hard connecting pipe 4 is a hard pipe, which is used to be connected with the pipe head 6 on the flushing pipe 7. Figure 4As shown, the hard connecting pipe 4 passes through the connecting hole 301, the hard connecting pipe 4 is in interference connection with the connecting hole 301, the upper end of the hard connecting pipe 4 passes out to the upper side of the flushing liquid container plug, and the second port 202 of the flushing liquid suction pipe is fixedly connected with the upper end of the hard connecting pipe 4. During use, the relative position between the hard connecting pipe 4 and the flushing liquid container plug 3 can be adjusted by directly pushing or pulling the hard connecting pipe 4, so that the hard connecting pipe 4 can be adapted to flushing liquid containers 15 of different depths, and the tail end of the hard connecting pipe 4 can be ensured to be located at the bottom of the flushing liquid container 15.

[0044] The pipe wall of the hard connecting pipe 4 of the embodiment is provided with a scale mark 401, so that the relative position of the hard connecting pipe 4 can be conveniently adjusted in advance by the surgeon to adapt to commonly used flushing liquid containers.

[0045] As shown in the drawings, Figure 2 The double-cavity oocyte collector of the embodiment includes a double-cavity oocyte collection needle tube 8, a flushing pipe 7, a liquid filter 12, an oocyte liquid suction pipe 9, an oocyte liquid container plug 10, and the flushing connecting device described above. A pipe head 6 is arranged at the first port 701 of the flushing pipe, and the flushing pipe 7 is connected with the flushing pipe connecting head 5 through the pipe head 6, so that the flushing pipe 7 is connected with the third port 103 of the three-way joint together. The second port 702 of the flushing pipe is connected with the flushing cavity of the double-cavity oocyte collection needle tube 8, and the liquid filter 12 is arranged on the flushing pipe 7.

[0046] The liquid filter 12 can filter the flushing liquid flowing through the flushing pipe 7, so that bubbles in the flushing liquid injected into the oocyte cavity during the operation can be avoided, and the imaging of the equipment during the operation can be affected. The liquid filter 12 is a conventional medical filter, which is provided with a filter membrane and an exhaust hole inside to realize filtering and exhaust.

[0047] The first port 901 of the oocyte liquid suction pipe is connected with the suction cavity of the double-cavity oocyte collection needle tube 8, the second port 902 of the oocyte liquid suction pipe is connected with the oocyte liquid container plug 10, the second port 902 of the oocyte liquid suction pipe passes through the oocyte liquid container plug 10 and enters the inside, when the oocyte liquid container plug 10 is used by being plugged in the oocyte liquid container 16, the second port 902 of the oocyte liquid suction pipe will extend into the oocyte liquid container 16, and the oocyte liquid will enter the oocyte liquid container 16 from the second port 902 of the oocyte liquid suction pipe. The oocyte liquid container plug 10 is provided with a negative pressure suction joint 11 for being connected with an external negative pressure suction device.

[0048] The flushing liquid suction pipe 2, the flushing pipe 7 and the oocyte liquid suction pipe 9 of the embodiment are all flexible pipes. The flushing liquid container 15 and the oocyte liquid container 16 are both test tubes, and in another embodiment, they can also be other forms of containers.

[0049] The use method of the double-cavity oocyte collector of the embodiment includes the following steps:

[0050] (1) Preparation and connection:

[0051] As shown in Figure 5 , when in use, the double-cavity oocyte collector is connected according to its structure, the syringe 17 is connected to the second port 102 of the three-way joint, the negative pressure suction joint 11 is connected to an external negative pressure suction device, the flushing liquid container plug 3 is plugged into the flushing liquid container 15 containing sterile flushing liquid, the position of the hard connecting tube 4 is adjusted so that the tail end of the hard connecting tube 4 is located at the bottom of the flushing liquid container 15, the follicular fluid container plug 10 is plugged into the follicular fluid container 16, and the flushing liquid container 15 and the follicular fluid container 16 are both vertically placed in a constant temperature rack which keeps the flushing liquid container 15 and the follicular fluid container 16 at a set temperature.

[0052] (2) Exhaustion and oocyte collection:

[0053] The syringe 17 is pulled, and a negative pressure is formed in the syringe 17. The sterile flushing liquid in the flushing liquid container 15 passes through the flushing liquid suction tube 2 and the first one-way valve 13 into the three-way joint 1 and then into the syringe 17. Then the syringe 17 is pushed, and under the blockage of the first one-way valve 13, the sterile flushing liquid can only be output through the second one-way valve 14, enter the flushing cavity of the double-cavity oocyte collection needle cannula 8 through the flushing tube 7, and finally fill the flushing cavity of the double-cavity oocyte collection needle cannula 8 with sterile flushing liquid to exhaust the gas in the flushing cavity.

[0054] Then, under the guidance of transvaginal ultrasound, the double-cavity oocyte collection needle cannula 8 is punctured into the filled follicular cavity. The negative pressure suction device is turned on, and the follicular fluid in the follicular cavity is sequentially sucked into the follicular fluid container 16 through the suction cavity of the double-cavity oocyte collection needle cannula 8 and the follicular fluid suction tube 9 under the action of negative pressure.

[0055] (3) Flushing and suction:

[0056] After the follicular fluid in the follicular cavity is completely sucked out, the negative pressure is stopped, and the syringe 17 is continuously pushed so that the sterile flushing liquid in the syringe 17 continues to be pushed into the follicular cavity through the flushing cavity of the double-cavity oocyte collection needle cannula 8. After the follicular cavity is filled again, the negative pressure is turned on again, and the double-cavity oocyte collection needle cannula 8 sucks out the sterile flushing liquid in the follicular cavity. The sterile flushing liquid enters the follicular fluid container 16 through the follicular fluid suction tube 9, and the single-time follicular cavity flushing operation is completed.

[0057] When the sterile flushing liquid in the syringe 17 is exhausted, the syringe 17 is pulled again to suck the sterile flushing liquid in the flushing liquid container 15. After the sucking is completed, the next flushing and suction can be performed.

[0058] When the sterile flushing liquid in one flushing liquid container 15 is used up, the flushing liquid container plug 3 can be pulled out and then plugged into another flushing liquid container 15 containing sterile flushing liquid to complete the replacement.

[0059] The above step (3) is repeated, and the follicle cavity of each dominant follicle is repeatedly flushed to complete the high-efficiency collection of the oocytes.

[0060] The above embodiments of the utility model are not the limitation of the protection scope of the utility model, and the implementation mode of the utility model is not limited to this, and according to the above content of the utility model, according to the ordinary technical knowledge and conventional means in the art, other various forms of modification, replacement or change of the above structure of the utility model are made without departing from the above basic technical thought of the utility model, and all should fall within the protection scope of the utility model.

Claims

1. A flushing connection device, comprising a flushing fluid suction tube and a rigid connection tube, wherein a second port of the flushing fluid suction tube is fixedly connected to the rigid connection tube, characterized in that: It also includes a three-way connector, in which a first one-way valve that allows only inflow and no outflow is provided in the first port of the three-way connector. The first port of the three-way connector is connected to the first port of the flushing fluid suction tube. The second port of the three-way connector is used to connect to a syringe. The third port of the three-way connector is provided with a second one-way valve that allows only outflow and no inflow. The third port of the three-way connector is used to connect to the double-lumen oocyte retrieval needle tube through the flushing tube.

2. The flushing connection device according to claim 1, characterized in that: The flushing connection device further includes a flushing fluid container plug, which has a vent hole and a connection hole. The flushing fluid container plug is used to plug onto the flushing fluid container. The rigid connecting tube passes through the connection hole and is interference-fitted with the connection hole. The rigid connecting tube can slide and adjust in the connection hole. The upper end of the rigid connecting tube extends above the flushing fluid container plug. The second port of the flushing fluid suction tube is fixedly connected to the upper end of the rigid connecting tube.

3. The flushing connection device according to claim 1, characterized in that: The rigid connecting pipe has graduated markings on its wall.

4. The flushing connection device according to claim 1, characterized in that: The flushing connection device further includes a flushing pipe connector, which is located on the third port of the tee connector and is used to connect to the flushing pipe.

5. The flushing connection device according to claim 1, characterized in that: The first port of the tee connector is fixedly connected to the first port of the flushing fluid suction tube.

6. A dual-cavity oocyte collection device, characterized in that: The device includes a double-lumen oocyte retrieval needle tube, a flushing tube, a medication filter, and a flushing connection device as described in any one of claims 1 to 5. The first port of the flushing tube is connected to the third port of the tee connector, the second port of the flushing tube is connected to the flushing chamber of the double-lumen oocyte retrieval needle tube, and the medication filter is disposed on the flushing tube.

7. The dual-chamber oocyte collection device according to claim 6, characterized in that: The dual-chamber oocyte collection device also includes a follicular fluid aspiration tube and a follicular fluid container plug. The first port of the follicular fluid aspiration tube is connected to the aspiration chamber of the dual-chamber oocyte retrieval needle tube, and the second port of the follicular fluid aspiration tube is connected to the follicular fluid container plug. The second port of the follicular fluid aspiration tube passes through the follicular fluid container plug and enters the inner side. The follicular fluid container plug is used to plug the follicular fluid container.

8. The dual-chamber oocyte collection device according to claim 7, characterized in that: The follicular fluid container plug is provided with a negative pressure suction connector for connection to an external negative pressure suction device.

9. The dual-cavity oocyte collection device according to claim 6, characterized in that: The flushing pipe has a pipe head at its first port.

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