CN211355801U - An embryo loading device - Google Patents

Abstract

The utility model discloses a dress embryo device belongs to embryo transfer technical field. The embryo containing device comprises a shell, a pull rod, a sealing ring and an embryo containing tube; a cylindrical cavity is arranged in the shell, a plurality of annular resistance grooves are formed in the inner side wall of the cavity, one end of the shell is opened, the other end, opposite to the opening, of the shell is provided with a connector, and a through hole communicated with the cavity is formed in the connector; one end of the pull rod is slidably arranged in the cavity, an annular groove is formed in the peripheral wall of one end of the pull rod, which is positioned in the cavity, and the other end of the pull rod extends out of the shell through the opening; the sealing ring has elasticity and is clamped in the annular groove, the periphery of the sealing ring is attached to the inner side wall of the cavity, one end of the embryo containing tube is detachably sleeved on the connecting head and is communicated with the cavity in the shell through the connecting head. The utility model provides a dress embryo operation technique technical problem that is difficult for mastering.

Description

An embryo loading device

technical field

The utility model relates to the technical field of embryo transfer, in particular to an embryo loading device.

Background technique

In vitro fertilization technology and embryo transfer technology are increasingly used in the treatment of transgenic animals, cloned animals and human IVF. The artificial combination of sperm and egg is carried out in vitro to form a fertilized egg, and the fertilized egg is developed into an embryo through in vitro culture. Using embryo transfer technology, embryos are transferred back to the mother's uterus to obtain pregnancy. In the prior art, the transfer of embryos and gametes is performed by adding a capillary tube with a glue tip, and the technician squeezes the glue tip with fingers to operate. When manipulating the embryo into the capillary, it is necessary to make the capillary inhale a section of protective solution, then inhale a section of air, and then inhale the liquid with embryos, then inhale a section of air, and finally inhale a section of protective liquid, so that the liquid containing embryos is located between two parts. between the air and the two protective liquids. Technicians need to go through a long period of training to master this technology. At the same time, it is difficult for novices to master the technology, which can easily lead to mistakes. The manual operation is very delicate, and the technician is easily fatigued and cannot perform the embryo loading operation for a long time or for a large number of embryos.

Utility model content

The purpose of the invention of the present utility model is to provide an embryo loading device in view of the above problems, which solves the technical problem that the embryo loading operation technology is not easy to master.

In order to achieve the above purpose, the technical scheme adopted by the present invention is: an embryo loading device, comprising a shell, a pull rod, a sealing ring and an embryo loading tube; a cylindrical cavity is arranged inside the shell, and the cavity of the cavity is A plurality of annular resistance grooves are arranged on the inner side wall, one end of the casing is open, and the other end of the casing opposite to the opening is provided with a connecting head, and the connecting head is provided with a connecting head that communicates with the cavity. one end of the pull rod is slidably installed in the cavity, the outer peripheral wall of one end of the pull rod located in the cavity is provided with an annular groove, and the other end of the pull rod protrudes out of the casing through the opening The sealing ring has elasticity and is clamped in the annular groove, the outer periphery of the sealing ring is in contact with the inner side wall of the cavity, and one end of the embryo-loading tube is detachably sleeved on the connecting head and communicates with the cavity in the housing through the connecting head.

Further, the number of the annular resistance grooves is five, the five annular resistance grooves are arranged at intervals from the connecting head to the opening, the number of the sealing ring is one, and the sealing ring can be forced toward the opening. The opening is pulled out in the direction of opening, and is snapped with the five annular resistance grooves in sequence.

Further, the five annular resistance grooves are, from the connector to the opening, a first annular resistance groove, a second annular resistance groove, a third annular resistance groove, a fourth annular resistance groove and a fifth annular resistance groove. In the initial state, the end of the pull rod located in the casing is in contact with the casing, and the distance between the pull rod being pulled out from the initial state and the sealing ring stuck in the first annular resistance groove is the same as the distance between the fourth annular resistance groove and the fifth annular resistance groove. The spacing between the grooves is the same; the spacing between the first annular resistance groove and the second annular resistance groove is the same as the spacing between the third annular resistance groove and the fourth annular resistance groove.

Further, the number of the annular resistance grooves is three, the number of the sealing ring and the annular groove is two, and the sealing ring is clamped on each of the annular grooves.

Further, the three annular resistance grooves are sequentially formed from the connecting head to the opening as a first annular resistance groove, a second annular resistance groove and a third annular resistance groove, and the two sealing rings are connected by the connecting head. The opening direction is the first sealing ring and the second sealing ring in sequence; in the initial state, the end of the tie rod located in the casing is in contact with the casing, and the two sealing rings are both closer to the connecting head than the first annular resistance groove. .

Further, the casing is made of transparent or translucent material.

Further, the sealing ring is made of silicone material.

Owing to adopting the above-mentioned technical scheme, the beneficial effects of the present utility model are:

1. In the initial state of the present utility model, the end of the pull rod located in the casing is in contact with the casing; when in use, the free end of the embryo-loading tube is first placed in the protective liquid, and the pull rod is pulled out for a distance to make the sealing ring. It is stuck into the annular resistance groove for the first time; due to the sealing effect of the sealing ring, negative pressure is generated in the cavity when the pull rod is pulled out, and the embryo-loading tube sucks a section of protective liquid; then the free end of the embryo-loading tube is placed in the air, By pulling the tie rod outward for a further distance and making the sealing ring snap into the annular resistance groove for the second time, the embryo loading tube sucks a section of air at this time; Pull out another distance and make the sealing ring snap into the annular resistance groove for the third time, so that the embryo loading tube sucks the embryo liquid. In the same way, finally inhale a section of air and a section of protective liquid, remove the embryo-loading tube, and complete the embryo-loading work. Based on the above operations, due to the interaction between the sealing ring and the annular resistance groove during the pull-out process of the tie rod, obvious resistance can be generated when the sealing ring is stuck in the annular resistance groove. After pulling it out after the position, you can easily grasp the amount of liquid or air inhaled in each section of the embryo loading tube.

2. The utility model can be provided with two sealing rings. Through the two sealing rings, when one sealing ring is stuck in the annular resistance groove, the other sealing ring is kept in contact with the inner wall of the receptor, which can ensure that the cavity is completely leak-proof. The accuracy of the amount of air, inhaled air or liquid.

Description of drawings

1 is a cross-sectional structural view of Embodiment 1 of the present utility model;

FIG. 2 is a cross-sectional structural diagram of Embodiment 2 of the present utility model.

In the drawings, 1-shell, 2-tie rod, 3-seal ring, 4-embryo tube, 11-cavity, 12-first annular resistance groove, 13-second annular resistance groove, 14-third annular Resistance groove, 15-fourth annular resistance groove, 16-fifth annular resistance groove, 17-connecting head, 21-annular groove, 31-first sealing ring, 32-second sealing ring.

Detailed ways

The specific implementation of the utility model is further described below with reference to the accompanying drawings.

In the description of the present invention, it should be understood that the terms "center", "length", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom" The orientation or positional relationship indicated by , "in", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific Orientation, construction and operation in a particular orientation, and therefore should not be construed as a limitation of the present invention.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features The features are not in direct contact but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

Please refer to FIG. 1 , an embryo loading device includes a casing 1, a tie rod 2, a sealing ring 3 and an embryo loading tube 4; the casing 1 is provided with a cylindrical cavity 11, and five An annular resistance groove, one end of the casing 1 is open, the other end of the casing 1 opposite to the opening is provided with a connecting head 17, and the connecting head 17 is provided with a through hole communicating with the cavity 11; one end of the pull rod 2 is slidably installed in the cavity In the body 11, an annular groove 21 is provided on the outer peripheral wall of one end of the pull rod 2 located in the cavity 11, and the other end of the pull rod 2 protrudes through the opening of the casing 1; the sealing ring 3 has elasticity and is clamped in the annular groove 21 to seal The outer circumference of the ring 3 is attached to the inner side wall of the cavity 11 , and one end of the embryo-loading tube 4 is detachably sleeved on the connecting head 17 and communicates with the cavity 11 in the housing 1 through the connecting head 17 . The sealing ring 3 can be made of silicone material, and the housing 1 can be made of transparent or translucent materials such as plexiglass or translucent plastic.

In this embodiment, the number of annular resistance grooves is five, and the number of sealing rings 3 is one. The five annular resistance grooves are the first annular resistance groove 12, the second annular resistance groove 13, the third annular resistance groove 14, the fourth annular resistance groove 15 and the fifth annular resistance groove 16 from the connector 17 to the opening direction; In the state, the end of the pull rod 2 located in the casing 1 is in contact with the casing 1, and the sealing ring 3 is located between the first annular resistance groove 12 and the connecting head; The distance between the resistance grooves 12 is the same as the distance between the fourth annular resistance groove 15 and the fifth annular resistance groove 16; the distance between the first annular resistance groove 12 and the second annular resistance groove 13 The intervals between the fourth annular resistance grooves 15 are the same. When in use, first place the free end of the embryo-loading tube 4 in the protective liquid, pull the tie rod 2 out for a certain distance and make the sealing ring 3 snap into the first annular resistance groove 12 for the first time; When the pull rod 2 is pulled out, a negative pressure is generated in the cavity 11, and the embryo-loading tube 4 inhales a section of protective liquid; then the free end of the embryo-loading tube 4 is placed in the air, and the pull rod 2 is pulled outward again. A distance is made and the sealing ring 3 is stuck in the second annular resistance groove 13, and the embryo tube 4 is sucked into a section of air at this time; then the free end of the embryo tube 4 is placed in the embryo liquid, and the tie rod 2 is moved outward again. Pull out a certain distance and make the sealing ring 3 snap into the third annular resistance groove 14, so that the embryo loading tube 4 sucks the embryo liquid. In the same way, the sealing ring 3 is inserted into the fourth annular resistance groove 15 and the fifth annular resistance groove 16 in turn, so that the embryo-loading tube 4 inhales a section of air and a section of protective liquid, and the embryo-loading tube 4 is removed to complete the embryo loading. Work.

Example 2

Please refer to FIG. 2 , an embryo loading device includes a casing 1, a tie rod 2, a sealing ring 3 and an embryo loading tube 4; the casing 1 is provided with a cylindrical cavity 11, and the inner side wall of the cavity 11 is provided with a plurality of annular The resistance groove, one end of the casing 1 is open, the other end of the casing 1 opposite to the opening is provided with a connecting head 17, and the connecting head 17 is provided with a through hole communicating with the cavity 11; one end of the pull rod 2 is slidably installed in the cavity 11, an annular groove 21 is provided on the outer peripheral wall of one end of the pull rod 2 located in the cavity 11, and the other end of the pull rod 2 protrudes through the opening of the casing 1; the sealing ring 3 has elasticity and is clamped in the annular groove 21, and the sealing ring 3 The outer periphery of the tube 4 is attached to the inner side wall of the cavity 11 , and one end of the embryo-loading tube 4 is detachably sleeved outside the connecting head 17 , and communicates with the cavity 11 in the housing 1 through the connecting head 17 . The sealing ring 3 can be made of silicone material, and the housing 1 can be made of transparent or translucent materials such as plexiglass or translucent plastic.

In this embodiment, the number of annular resistance grooves is three, the number of the sealing ring 3 and the annular groove 21 is two, and each annular groove 21 is clamped with a sealing ring 3 . The three annular resistance grooves are the first annular resistance groove 12, the second annular resistance groove 13 and the third annular resistance groove 14 from the connector 17 to the opening in sequence, and the two seal rings 3 are the first annular resistance groove from the connector 17 to the opening in sequence. The sealing ring 31 and the second sealing ring 32 . In the initial state, one end of the pull rod 2 inside the casing 1 is in contact with the casing 1 , and the first sealing ring 31 and the second sealing ring 32 are both closer to the connecting head 17 than the first annular resistance groove 12 . When in use, first place the free end of the embryo-loading tube 4 in the protective liquid, pull the pull rod 2 out for a distance and make the second sealing ring 32 snap into the first annular resistance groove 12; Closing effect, when the pull rod 2 is pulled out, a negative pressure is generated in the cavity 11, and the embryo-loading tube 4 inhales a section of protective liquid; then the free end of the embryo-loading tube 4 is placed in the air, and the pull rod 2 is pulled out again. A distance and the first sealing ring 31 is stuck in the first annular resistance groove 12, and the embryo tube 4 sucks a section of air at this time; then the free end of the embryo tube 4 is placed in the embryo liquid, and the tie rod 2 is moved outwards. Pull out another distance and make the second sealing ring 32 snap into the second annular resistance groove 13, so that the embryo-loading tube 4 sucks the embryo liquid. In the same way, pull the pull rod 2 out for a distance and make the first sealing ring 31 snap into the second annular resistance groove 13 to inhale a section of air; finally pull the pull rod 2 out for a distance and make the second sealing ring 32 jam A section of protective liquid is sucked into the third annular resistance groove 14, and the embryo-loading tube 4 is removed to complete the embryo-loading work.

The above description is a detailed description of the preferred feasible embodiments of the present utility model, but the embodiments are not intended to limit the scope of the patent application of the present utility model. All should belong to the scope of the patent covered by this utility model.

Claims (7)

1. A dress embryo device which characterized in that: comprises a shell, a pull rod, a sealing ring and a blank containing tube; a cylindrical cavity is arranged in the shell, a plurality of annular resistance grooves are formed in the inner side wall of the cavity, one end of the shell is open, the other end, opposite to the opening, of the shell is provided with a connector, and a through hole communicated with the cavity is formed in the connector; one end of the pull rod is slidably arranged in the cavity, an annular groove is formed in the peripheral wall of one end of the pull rod, which is positioned in the cavity, and the other end of the pull rod extends out of the shell through the opening; the sealing ring has elasticity and the clamp is in the ring channel, the periphery of sealing ring with the inboard wall of cavity pastes mutually, dress idiosome pipe one end is established detachablely the cover is in on the connector to through the connector with cavity intercommunication in the casing.

2. The embryo-loading device according to claim 1, wherein: the quantity of annular resistance groove is five, five annular resistance grooves certainly the connector arrives open-ended direction interval sets up, the quantity of sealing ring is one, the sealing ring can the atress court the opening direction is pulled out, and in proper order with five annular resistance groove joint.

3. An embryo-loading device according to claim 2, wherein: the five annular resistance grooves are a first annular resistance groove, a second annular resistance groove, a third annular resistance groove, a fourth annular resistance groove and a fifth annular resistance groove in sequence from the connector to the opening; in an initial state, one end of the pull rod, which is positioned in the shell, abuts against the shell, and the distance from the pull rod to the clamping of the sealing ring into the first annular resistance groove is the same as the distance between the fourth annular resistance groove and the fifth annular resistance groove; the distance between the first annular resistance groove and the second annular resistance groove is the same as the distance between the third annular resistance groove and the fourth annular resistance groove.

4. The embryo-loading device according to claim 1, wherein: the annular resistance grooves are three in number, the sealing rings and the annular grooves are two in number, and one sealing ring is clamped on each annular groove.

5. An embryo-loading device according to claim 4, wherein: the three annular resistance grooves are a first annular resistance groove, a second annular resistance groove and a third annular resistance groove from the connector to the opening in sequence, and the two sealing rings are a first sealing ring and a second sealing ring from the connector to the opening in sequence; and in the initial state, one end of the pull rod, which is positioned in the shell, is abutted against the shell, and the two sealing rings are close to the connector compared with the first annular resistance groove.

6. The embryo-loading device according to claim 1, wherein: the shell is made of transparent or semitransparent materials.

7. The embryo-loading device according to claim 1, wherein: the sealing ring is made of a silica gel material.

Images