Two-channel manual electric pipette suitable for embryo laboratory

Abstract

The utility model discloses a two-channel manual electric pipette suitable for an embryo laboratory, and relates to the technical field of pipettes. The two-channel manual type electric pipette suitable for the embryo laboratory comprises a pipette body and a pipette cabin used for transferring embryos, the pipette cabin is detachably installed on the pipette body, and the pipette body pumps and exhausts air to the pipette cabin to achieve the liquid suction and drainage functions of the pipette cabin; the pipetting cabin with the two large-capacity cabin bodies is adopted, the storage capacity is large, the pipetting requirement in a laboratory can be met at a time, the two cabin bodies can transfer different liquids and can be independently controlled, frequent pipetting gun heads can be omitted by combining the large capacity, installation is easy, the pipetting cabin and the pipetting gun body can be stably installed only through simple inserting operation, and the pipetting gun is convenient to use and popularize. Moreover, rapid pipetting operation can be realized through electric operation, the two cabin bodies of the pipetting cabin can be selectively mounted, and the two cabin bodies can be mounted together or independently, so that different requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of pipette technology, specifically a dual-channel manual-electric pipette suitable for embryo laboratories. Background Technology

[0002] In the medical field, embryo culture typically refers to a step in assisted reproductive technology (ART), involving the in vitro fusion of eggs and sperm and the cultivation of embryos under specific conditions to address infertility. Embryo culture includes the manipulation of egg and sperm fertilization, constant temperature culture and observation of embryos, blastocyst culture, and embryo freezing. The culture process is crucial for the success of IVF (in vitro fertilization) or ICSI (intracytoplasmic sperm injection), and the embryo culture cycle begins with the fusion of egg and sperm and continues until the embryo is transferred to the uterus. Maintaining appropriate osmotic pressure is essential for the success of cell culture and embryo development; therefore, careful monitoring and regulation are required in laboratory settings.

[0003] Laboratory pipettes are specialized tools that allow scientists to safely and accurately deliver liquids. These piston-driven instruments, commonly used in biological, chemical, and medical laboratories, are similar to syringes and come in many different designs, ranging from basic single-blade glass pipettes to sophisticated electronic pipettes. The accuracy and precision of these different designs vary considerably, and laboratories choose pipettes based on their specific needs. Some pipettes are manually operated, while others employ automated technology. Laboratory pipettes are specialized tools that allow scientists to safely and accurately deliver liquids.

[0004] Traditional pipettes or busbars are commonly used in embryology laboratories to prepare culture drops. However, this process presents several problems: 1. Operators need to frequently change pipette tips; 2. After preparing the culture drop, pipettes and tips must be replaced to aspirate culture oil and coat the drop, resulting in prolonged exposure of the drop to air; 3. Traditional pipettes have limited liquid capacity, insufficient for large-scale laboratory preparation of culture drops / plates. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a dual-channel manual-electric pipette suitable for embryo laboratories, solving the problems existing in current pipettes used in embryo experiments.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a dual-channel manual-electric pipette suitable for embryo laboratories, comprising a pipette body and a pipetting chamber for transferring embryos, wherein the pipetting chamber is detachably mounted on the pipette body, and the pipette body realizes the liquid aspiration and liquid discharge functions of the pipetting chamber by drawing and expelling air into and from the pipetting chamber;

[0007] The pipetting chamber has two separate chambers, which are installed together by a assemblies. The top of the pipetting chamber is connected to the pipetting chamber by a plug-in method and is connected to the exhaust and ventilation structure inside the pipetting chamber. An adsorption structure is provided between the assemblies and the pipetting gun body to improve the connection strength between the pipetting chamber and the pipetting gun body.

[0008] Preferably, the chamber includes a large-capacity main chamber, the top front side of the large-capacity main chamber is provided with an injection port, and a sealing cap is fitted onto the injection port. The bottom of the large-capacity main chamber is connected to a pipette tip, and the top of the large-capacity main chamber is connected to a rigid tube that is inserted into the pipette body.

[0009] Preferably, the pipette body has an internal slot that fits the rigid tubing, the exhaust structure is fixedly connected to the slot, and the slot has a spherical sealing ring inside. The top of the rigid tubing is a spherical structure that fits the spherical sealing ring, so that the rigid tubing and the exhaust structure remain sealed when air is circulated through the spherical sealing ring.

[0010] Preferably, the suction and exhaust structure includes two air pumps installed in the pipette body, the output end of the air pump is connected to the slot through an air tube, and the air pump is a miniature air pump that integrates suction and exhaust.

[0011] The pipette body has a vent hole on its side, located at the air pump inlet, and a filter cotton is provided inside the vent hole.

[0012] Preferably, the pipette body also has a handle with a control element installed inside, and the control element has a built-in battery. The bottom of the control element has a charging port that runs through the bottom of the pipette body. The side of the control element has two control buttons, and the control buttons have two levels based on the pressing depth, which are used to control the air pump to draw in air or to fill air.

[0013] Preferably, the assembly is an inverted plate frame, with two C-shaped openings at both ends of the inverted plate frame, and the upper and lower C-shaped openings are used to elastically engage the rigid insertion tubes and gun heads of the two compartments, respectively.

[0014] Preferably, the adsorption structure includes a first magnet that penetrates and engages with the surface of the pipette body and is located between two slots, and a second magnet that is fixed to the top of the assembly.

[0015] Preferably, the base of the gun head is provided with a telescopic tube structure, so that the gun head can be extended, retracted and bent.

[0016] This invention provides a dual-channel manual / electric pipette suitable for embryology laboratories. Compared with existing technologies, it has the following advantages:

[0017] 1. This dual-channel manual / electric pipette, suitable for embryology laboratories, features two large-capacity pipetting chambers. The large storage capacity can meet all pipetting needs in the laboratory at once. Each chamber can transfer different liquids and can be controlled independently. Combined with its large capacity, it eliminates the need for frequent pipetting tip installation. Installation is simple; a simple plug-in operation allows for stable installation with the pipette body. The electric operation enables rapid pipetting. The two chambers can be installed selectively, either together or individually, to meet different needs.

[0018] 2. This dual-channel manual / electric pipette, suitable for embryo laboratories, allows for easy connection of two chambers by simply snapping the assembly into place. Furthermore, the two magnets further secure the pipette chambers to the bottom of the pipette body, resulting in a more stable connection.

[0019] 3. This dual-channel manual / electric pipette, suitable for embryo laboratories, utilizes the extendable and bendable characteristics of the pipette tip, allowing the length and angle of the pipette chamber to be adjusted as needed. The distance between the lower ends of the pipette tips of the two chambers can also be adjusted, meeting more needs and making it more flexible to use. Attached Figure Description

[0020] Figure 1 This is a perspective view of the overall structure of this utility model;

[0021] Figure 2 This is a perspective view of the pipetting chamber of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the pipette body of this utility model.

[0023] In the diagram: 1-pipette body, 11-slot, 12-spherical sealing ring, 13-air pump, 14-air tube, 15-filter cotton, 16-control element, 161-charging port, 162-control button, 17-first magnet;

[0024] 2-Pipette chamber, 21-Assembly, 211-C-type port, 212-Second magnet, 22-Large capacity main chamber, 23-Sealing cap, 24-Pipette tip, 25-Rigid cannula. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] See Figures 1-3 This utility model provides the following three technical solutions:

[0027] First implementation: A dual-channel manual-electric pipette suitable for embryo laboratories, comprising a pipette body 1 and a pipetting chamber 2 for transferring embryos. The outer shell of the pipette body 1 is composed of two symmetrical halves and is fixed by screws on the back. The pipetting chamber 2 is detachably installed on the pipette body 1. The pipette body 1 realizes the liquid aspiration and liquid discharge functions of the pipetting chamber 2 by drawing and expelling air into and from the pipetting chamber 2.

[0028] The pipetting chamber 2 has two separate chambers with graduation lines on them. The two chambers are installed together by a component 21. The top of the pipetting chamber 2 is connected to the pipetting chamber 2 by a plug-in connection and is connected to the exhaust and ventilation structure inside the pipetting chamber 2. An adsorption structure is provided between the component 21 and the pipetting gun body 1 to improve the connection strength of the pipetting chamber 2.

[0029] The pipette body 1 also has a handle with a control element 16 inside. The control element 16 has a built-in battery. The bottom of the control element 16 has a charging port 161 that runs through the bottom of the pipette body 1. The control element 16 has two control buttons 162 on its side. The control buttons 162 have two positions based on the depth of press, which are used to control the air pump 13 to draw air or fill air. The front of the control button 162 has a scale line to indicate the position. The first position is to dispense liquid (press halfway, the scale line is aligned with the side of the handle of the pipette body 1), and the second position is to draw liquid (press all the way).

[0030] The chamber includes a large-capacity main chamber 22. The top front side of the large-capacity main chamber 22 is provided with a liquid inlet, and a sealing cap 23 is fitted onto the liquid inlet. The liquid inlet can be used to add liquid in advance. After filling, it is tilted at a 45° angle to remove as much air as possible. When adding liquid, the bottom end of the pipette tip 24 needs to be sealed. The bottom of the large-capacity main chamber 22 is connected to the pipette tip 24, and the top of the large-capacity main chamber 22 is connected to a rigid tube 25 that is inserted into the pipette body 1. The inside of the pipette body 1 is provided with a slot 11 that is adapted to the rigid tube 25. The exhaust structure is fixedly connected to the slot 11, and a spherical sealing ring 12 is provided inside the slot 11. The top end of the rigid tube 25 is a spherical structure that is adapted to the spherical sealing ring 12. The spherical sealing ring 12 keeps the rigid tube 25 sealed when it is vented from the exhaust structure.

[0031] The suction and exhaust structure includes two air pumps 13 installed inside the pipette body 1. The output end of the air pump 13 is connected to the slot 11 through the air tube 14. The air pump 13 is a micro air pump with integrated suction and exhaust. The air pump with integrated inflation and deflation usually includes an upper housing assembly, an inflation and deflation assembly, and a motor. The inflation and deflation assembly achieves inflation and deflation functions at the same port through a specific structural design, such as a rubber cup, a bracket, a piston structure, and a lifting eccentric wheel. When the motor drives the lifting eccentric wheel to rotate, the piston structure moves accordingly, thereby changing the state of the port and realizing the intake and exhaust of gas. This is the prior art.

[0032] A vent is provided on the side of the pipette body 1 and at the air inlet of the air pump 13, and a filter cotton 15 is provided inside the vent.

[0033] This device uses two large-capacity pipetting chambers 2, which have a large storage capacity and can meet the pipetting needs of the laboratory at one time. The two chambers can transfer different liquids and can be controlled independently. Combined with the large capacity, it can eliminate the need for frequent pipetting tips. It is also easy to install, and can be stably installed with the pipetting gun body 1 with a simple plug-in operation. The electric operation can realize rapid pipetting operation. The two chambers of the pipetting chamber 2 can be installed selectively, either together or separately, to meet different needs.

[0034] The second embodiment differs from the first embodiment in that the assembly 21 is an inverted plate frame with elasticity. Both ends of the inverted plate frame have two C-shaped openings 211, and the upper and lower C-shaped openings 211 are used to elastically engage the rigid insertion tubes 25 and the gun head 24 of the two compartments, respectively.

[0035] The adsorption structure includes a first magnet 17 that penetrates and engages with the surface of the pipette body 1 and is located between two slots 11, and a second magnet 212 that is fixed to the top of the assembly 21.

[0036] The two chambers can be easily connected by simply engaging the assembly 21 with the chamber body. Furthermore, the two magnets can be used to further attach the pipette chamber 2 to the bottom of the pipette body 1, making the connection more stable.

[0037] The third implementation differs from the first implementation in that the root of the nozzle 24 is provided with a telescopic tube structure, which makes the nozzle 24 telescopic and bendable. The telescopic tube structure is the telescopic folding part of an existing straw.

[0038] By utilizing the extendable and bendable characteristics of the pipette tip 24, the length and angle of the pipette chamber 2 can be adjusted as needed, and the distance between the lower ends of the pipette tips 24 of the two chambers can also be adjusted, meeting more needs and making it more flexible to use.

[0039] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-channel manual / electric pipette suitable for an embryology laboratory, comprising a pipette body and a pipetting chamber for transferring embryos, wherein the pipetting chamber is detachably mounted on the pipette body, characterized in that: The pipette body achieves the functions of liquid aspiration and liquid discharge in the pipetting chamber by drawing and expelling air into and out of the pipetting chamber; The pipetting chamber has two separate chambers, which are installed together by a assemblies. The top of the pipetting chamber is connected to the pipetting chamber by a plug-in method and is connected to the exhaust and ventilation structure inside the pipetting chamber. An adsorption structure is provided between the assemblies and the pipetting gun body to improve the connection strength between the pipetting chamber and the pipetting gun body.

2. The dual-channel manual / electric pipette suitable for embryology laboratories according to claim 1, characterized in that: The chamber includes a large-capacity main chamber, with an injection port on the top front side of the large-capacity main chamber and a sealing cap fitted onto the injection port. The bottom of the large-capacity main chamber is connected to a pipette tip, and the top of the large-capacity main chamber is connected to a rigid tube that is inserted into the pipette body.

3. A dual-channel manual / electric pipette suitable for embryology laboratories according to claim 2, characterized in that: The pipette body has a slot inside that fits the rigid tubing. The air extraction structure is fixedly connected to the slot, and a spherical sealing ring is provided inside the slot. The top of the rigid tubing is a spherical structure that fits the spherical sealing ring. The spherical sealing ring keeps the rigid tubing sealed when it is vented from the air extraction structure.

4. A dual-channel manual / electric pipette suitable for embryology laboratories according to claim 3, characterized in that: The suction and exhaust structure includes two air pumps installed in the pipette body. The output end of the air pump is connected to the slot through an air tube, and the air pump is a miniature air pump that integrates suction and exhaust. The pipette body has a vent hole on its side, located at the air pump inlet, and a filter cotton is provided inside the vent hole.

5. A dual-channel manual / electric pipette suitable for embryology laboratories according to claim 1, characterized in that: The pipette body also has a handle with a control element inside, and the control element has a built-in battery. The bottom of the control element has a charging port that runs through the bottom of the pipette body. The side of the control element has two control buttons, which have two levels based on the depth of the press, and are used to control the air pump to draw in or fill air.

6. A dual-channel manual / electric pipette suitable for embryology laboratories according to claim 1, characterized in that: The assembly is an inverted plate frame, with two C-shaped openings at both ends of the inverted plate frame. The upper and lower C-shaped openings are used to elastically engage the rigid insertion tubes and gun heads of the two compartments, respectively.

7. A dual-channel manual / electric pipette suitable for embryology laboratories according to claim 1, characterized in that: The adsorption structure includes a first magnet that penetrates and engages with the surface of the pipette body and is located between two slots, and a second magnet that is fixed to the top of the assembly.

8. A dual-channel manual / electric pipette suitable for embryology laboratories according to claim 2, characterized in that: The base of the gun head is equipped with a telescopic tube structure, which allows the gun head to be extended, retracted, and bent.

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