CN-224208052-U - Dual-channel manual electric pipette suitable for embryo laboratory

CN224208052UCN 224208052 UCN224208052 UCN 224208052UCN-224208052-U

Abstract

The utility model discloses a double-channel manual electric pipette suitable for an embryo laboratory, and relates to the technical field of pipettes. The two-channel manual electric type liquid transferring gun suitable for the embryo laboratory comprises a liquid transferring gun body and a liquid transferring tank for transferring embryos, wherein the liquid transferring tank is detachably arranged on the liquid transferring gun body, the liquid transferring gun body can realize liquid suction and liquid discharge functions of the liquid transferring tank by pumping and exhausting air to the liquid transferring tank, the liquid transferring tanks with two large-capacity tank bodies are large in storage capacity, can meet liquid transferring requirements in the laboratory at one time, can transfer different liquids and can be controlled independently, can be combined with the large-capacity liquid transferring tank body, can omit frequent liquid transferring gun heads, is simple to install, can be stably installed with the liquid transferring gun body only by simple plugging operation, can realize quick liquid transferring operation by electric operation, can be installed by selecting the two tank bodies of the liquid transferring tank, and can be installed together or independently to meet different requirements.

Inventors

WANG NAN
WANG XIAOMENG
LONG CHUAN
ZHU XIAOHUI
YAN LIYING
QIAO JIE

Assignees

北京大学第三医院（北京大学第三临床医学院）

Dates

Publication Date: 20260508
Application Date: 20250530

Claims (8)

1. The double-channel manual electric type liquid transferring gun suitable for the embryo laboratory comprises a liquid transferring gun body and a liquid transferring tank for transferring embryos, wherein the liquid transferring tank is detachably arranged on the liquid transferring gun body, and is characterized in that the liquid transferring gun body realizes liquid sucking and liquid discharging functions of the liquid transferring tank by pumping and exhausting air to the liquid transferring tank; The liquid transferring tank is provided with two separated tank bodies, the two tank bodies are integrally arranged through an assembly, the top end of the liquid transferring tank is connected with the liquid transferring tank in a plugging mode and communicated with an internal pumping and exhausting structure of the liquid transferring tank, and an adsorption structure for improving the connection strength of the liquid transferring tank is arranged between the assembly and the liquid transferring gun body.
2. The dual-channel manual electric pipetting gun suitable for embryo laboratories of claim 1, wherein the chamber body comprises a large-capacity main chamber, the top of the front side of the large-capacity main chamber is provided with a liquid injection port, a sealing cover is clamped outside the liquid injection port, the bottom of the large-capacity main chamber is communicated with a gun head, and the top of the large-capacity main chamber is communicated with a hard cannula spliced with the pipetting gun body.
3. The dual-channel manual electric pipette suitable for embryo laboratories according to claim 2, wherein the inside of the pipette body is provided with a slot adapted to a hard cannula, the air pumping and exhausting structure is fixedly connected with the slot, the inside of the slot is provided with a spherical sealing ring, the top end of the hard cannula is of a spherical structure adapted to the spherical sealing ring, and the hard cannula is kept sealed when the air pumping and exhausting structure is ventilated through the spherical sealing ring.
4. The dual-channel manual and electric pipette suitable for embryo laboratories according to claim 3, wherein the pumping and exhausting structure comprises two air pumps arranged in the pipette body, the output ends of the air pumps are connected with the slot through air pipes, and the air pumps are pumping and exhausting integrated micro air pumps; the side of the liquid-transfering gun body and the air inlet end of the air pump are provided with vent holes, and the inner sides of the vent holes are provided with filter cotton.
5. The dual-channel manual electric pipette suitable for embryo laboratories of claim 1, wherein the inside of the pipette body is also provided with a control element, the inside of the handle position is provided with a storage battery, the bottom of the control element is provided with a charging port penetrating through the bottom of the pipette body, the side surface of the control element is provided with two control buttons, and the control buttons are respectively used for controlling the air pump to suck or charge based on the pressing depth.
6. The dual-channel manual and electric pipette gun for embryo laboratories according to claim 1, wherein the assembly is a 匚 -type sheet frame, two C-shaped openings are formed at two ends of the 匚 -type sheet frame, and the upper C-shaped opening and the lower C-shaped opening are respectively used for elastically clamping a hard cannula and a gun head of two cabins.
7. The dual-channel manual and electric pipette for embryo labs of claim 1 wherein the suction structure comprises a first magnet penetrating through the surface of the pipette body and positioned between the two slots, and a second magnet fixed to the top of the assembly.
8. The dual-channel manual and electric pipette suitable for embryo labs of claim 2, wherein the root of the gun head is provided with a telescopic tube structure, so that the gun head can be telescopic and bent.

Description

Dual-channel manual electric pipette suitable for embryo laboratory Technical Field The utility model relates to the technical field of pipette guns, in particular to a double-channel manual electric pipette gun suitable for an embryo laboratory. Background In the medical field, embryo culture generally refers to a step in human assisted reproduction technology involving combining an ovum and sperm in vitro and culturing the embryo under specific conditions to solve the problem of infertility. Embryo culture includes fertilization operation of ovum and sperm, constant temperature culture and observation of embryo, bag culturing process, embryo freezing, etc. The culturing process is critical to the success of IVF (in vitro fertilisation) or ICSI (intracytoplasmic sperm injection), and the embryo culture cycle starts with the combination of an ovum and sperm until the embryo is transferred into the uterus. Maintaining a proper osmotic pressure is critical to the success of cell culture and embryo development and therefore requires careful monitoring and regulation in laboratory work. Laboratory pipettors are special tools that allow scientists to safely and accurately deliver liquids. Such piston-driven instruments are commonly used in biological, chemical and medical laboratories, similar to syringes, and have many different designs, from basic monolithic glass pipettes to complex electronic pipettes. The accuracy and precision of different designs vary widely, and the laboratory selects the pipettes according to their unique needs. Some pipettes are manually operated, while others employ automated techniques. Laboratory pipettors are special tools that allow scientists to safely and accurately deliver liquids. Conventional pipette guns or baster tubes are typically used in the preparation of culture droplets in existing embryo laboratories. The problems that 1 the gun head needs to be replaced frequently when an operator operates the device in the actual operation process, 2 the pipette gun and the gun head need to be replaced after the preparation of the culture drops are finished to absorb the culture oil and cover the culture drops, the operation time is long, the culture drops are exposed in the air too long, and 3 the traditional pipette gun has small liquid carrying amount and cannot meet the requirement of preparing the culture drops/culture dishes on a large scale in a laboratory. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides a double-channel manual electric pipette suitable for an embryo laboratory, and solves the problems of the conventional pipette in embryo experiments. The utility model aims at realizing the technical scheme that the double-channel manual electric type liquid transferring gun suitable for the embryo laboratory comprises a liquid transferring gun body and a liquid transferring cabin for transferring embryos, wherein the liquid transferring cabin is detachably arranged on the liquid transferring gun body, and the liquid transferring gun body realizes the liquid sucking and liquid discharging functions of the liquid transferring cabin by sucking and exhausting air to the liquid transferring cabin; The liquid transferring tank is provided with two separated tank bodies, the two tank bodies are integrally arranged through an assembly, the top end of the liquid transferring tank is connected with the liquid transferring tank in a plugging mode and communicated with an internal pumping and exhausting structure of the liquid transferring tank, and an adsorption structure for improving the connection strength of the liquid transferring tank is arranged between the assembly and the liquid transferring gun body. Preferably, the cabin body comprises a large-capacity main cabin, the top of the front side of the large-capacity main cabin is provided with a liquid injection port, a sealing cover is clamped outside the liquid injection port, the bottom of the large-capacity main cabin is communicated with a gun head, and the top of the large-capacity main cabin is communicated with a hard cannula which is spliced with the liquid-transferring gun body. Preferably, the inside of liquid-transfering gun body is equipped with the slot with the adaptation of stereoplasm intubate, exhaust structure and slot fixed connection, and the inside of slot is provided with spherical sealing washer, the top of stereoplasm intubate is the spherical structure with spherical sealing washer adaptation, keeps sealedly when making stereoplasm intubate and exhaust structure ventilate through spherical sealing washer. Preferably, the pumping and exhausting structure comprises two air pumps arranged in the pipetting gun body, the output ends of the air pumps are connected with the slots through air pipes, and the air pumps are pumping and exhausting integrated miniature air pumps; the side of the liquid-transfering gun body and the air inlet end of the air pump are prov