Split type vitrification freezing loading rod

Abstract

The utility model discloses a split type vitrification freezing carrying rod, which belongs to the technical field of assisted reproduction, and comprises a carrying piece for placing a sample body and a carrying rod connected with the carrying piece, the tail end of the carrying rod is a handheld part, one end of a connecting part is connected with a thermal plugging head, the other end of the connecting part is matched with the tail end of the handheld part through a clamping assembly, and the carrying piece is connected with the carrying rod. The connecting part is inserted into the sheath after being matched with the handheld part through the clamping assembly, the handheld part is provided with a grip, the grip extends to form a stroke rod, the end of the stroke rod is fixedly connected with the protruding block, a sliding block is arranged on the stroke rod, the clamping assembly comprises a connecting frame with an inner cavity, a penetrating groove is formed in the side face of the connecting frame, a sliding rod is arranged in the penetrating groove, and a spring is arranged on the sliding rod. The technical problem that an integrally-injection-molded lengthened carrying rod cannot be detached is solved, and the loading rod is mainly applied to the aspect of cryopreservation of ova, embryos and cystic fetuses.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of assisted reproductive technology, concretely relates to a split type vitrification freezing carrier rod. BACKGROUND

[0002] Oocyte and embryo freezing technology is one of important technical means in the field of human assisted reproduction, and the survival rate of oocyte / embryo after thawing plays a crucial role in the success of transplantation, and the vitrification rapid freezing technology is a commonly used method for rapidly freezing oocytes or embryos in the field of assisted reproductive technology, which can make cells vitrify instantaneously in a low-temperature environment, avoid ice crystal formation, achieve the effect of freezing protection, and thus significantly improve the survival and development capacity of cells / tissues after freezing.

[0003] In the freezing and thawing process of oocyte or embryo cells, according to the experimental procedure, the operation of sleeving and installing the sheath on the core rod is required. According to the experimental requirements, this operation sometimes needs to be completed in liquid nitrogen. Since the diameter of the core rod and the inner diameter of the opening of the sheath are small, it is difficult to accurately insert the carrier and the core rod into the sheath quickly when operating in liquid nitrogen, and thus there is the problem of inconvenient operation. If the carrier is accidentally touched during the operation, the oocyte or embryo may be damaged, which needs to be solved.

[0004] Patent No. (CN221711041U) discloses a split type vitrification freezing carrier rod, which belongs to the field of biological reproduction and is characterized by comprising a carrier rod and a sheath. The carrier rod comprises a hand-held part, an intermediate section and a carrier, and the hand-held part and the carrier arranged at the two ends of the intermediate section form the carrier rod. The sheath is a cylindrical hollow tube with an inner cavity, and one end of the inner cavity is closed and the other end is open. A counterweight is arranged on the closed side. The radial cross-sectional dimension of the intermediate section matches the cross-sectional dimension of the inner cavity, solving the technical problems of embryo cross-contamination and embryo loss. The split type vitrification freezing carrier rod is mainly used for freezing and preserving oocytes, embryos and cystic embryos. In the previous technical solution, the lengthened carrier rod is formed by one-piece injection molding and cannot be disassembled, which makes the operation inconvenient during resuscitation. Therefore, our company has developed a detachable freezing carrier rod with high stability to replace the existing technology. SUMMARY

[0005] The utility model aims at providing a split type vitrification freezing carrier rod to solve the technical problem of the one-piece injection molded lengthened carrier rod that cannot be disassembled.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: a split type vitrification freezing carrier rod, characterized by comprising:

[0007] a carrier for placing a sample, and a carrier rod connected to the carrier, wherein the tail end of the carrier rod is a hand-held part;

[0008] One end of the connecting part is connected with the heat sealing plug, and the other end is matched with the tail end of the handheld part through the clamping assembly;

[0009] The connecting part is inserted into the sheath after being matched with the handheld part through the clamping assembly.

[0010] Further, a guide part with the same inner diameter as the sheath is arranged at the connecting position of the carrier rod and the slide.

[0011] Further, the handheld part has a handle, the handle extends a stroke rod, the end of the stroke rod is fixedly connected with the protrusion, and a sliding block is arranged on the stroke rod.

[0012] Further, the upper and lower sides of the sliding block have inward inclined surfaces.

[0013] Further, the clamping assembly comprises a connecting frame with an inner cavity, the side surface of the connecting frame is provided with a through slot, a sliding rod is arranged in the through slot, a spring is arranged on the sliding rod, one end of the spring is fixedly connected with the through slot, and the other end of the spring is fixedly connected with the sliding rod.

[0014] Compared with the prior art, the utility model has the advantages that the clamping assembly is matched with the protrusion and the sliding block, one hand of a worker holds the handle, the other hand holds the connecting part to make the connecting frame align with the protrusion and press downward, the protrusion is inserted into the inner cavity, in this process, the sliding rod gradually expands outward to compress the spring, and the sliding rod resets under the potential energy of the spring after passing the protrusion, the upper surface of the sliding rod is attached to the lower bottom surface of the protrusion, at this time, the hand holding the handle is released to complete the hanging, one hand of a worker holds the handle, the other hand holds the connecting part to press downward, the lower inclined surface of the sliding rod passes the upper inclined surface of the sliding block, the connecting part is lifted upward, the sliding block is lifted upward under the driving of the sliding rod until the lower bottom surface of the protrusion is attached to continue lifting, the sliding rod gradually expands outward to compress the spring, and the sliding rod resets under the potential energy of the spring after passing the protrusion to release the locking state, and the utility model is split, the structure of the utility model is more reasonable, and the utility model is suitable for being popularized and applied. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural diagram of the utility model;

[0016] Figure 2 is a partial enlarged view of A in the utility model Figure 1 is a partial enlarged view of A in the utility model DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] In the description of the invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0019] In the first embodiment of the utility model, as shown in Figure 1 Figure 2 A split type vitrification freezing carrier rod, characterized in that, comprising:

[0020] A carrier 1 for placing a sample, and a carrier rod 2 connected with the carrier 1, the tail end of the carrier rod is a hand-held part;

[0021] One end of the connecting part 3 is connected with the heat seal plug 4, and the other end is matched with the tail end of the hand-held part through the clamping assembly;

[0022] The connecting part 3 is inserted into the sheath 5 after being matched with the hand-held part through the clamping assembly;

[0023] The connecting part 3 is inserted into the sheath 5 after being matched with the hand-held part through the clamping assembly;

[0024] The hand-held part has a handle 7, the handle 7 extends a stroke rod 8, the end of the stroke rod 8 is fixedly connected with a protruding block 9, a sliding block 10 is arranged on the stroke rod 9, and the sliding block 10 has inward inclined surfaces on the upper side and the lower side;

[0025] The clamping assembly comprises a connecting frame 12 with an inner cavity 11, the connecting frame 12 has a through slot 13 on the side surface, a sliding rod 14 is arranged in the through slot 13, a spring 15 is arranged on the sliding rod 14, one end of the spring 15 is fixedly connected with the through slot 13, and the other end is fixedly connected with the sliding rod 14.

[0026] ​By adopting the above technical scheme: the outer sleeve is inserted into the test tube rack for positioning, according to the vitrification freezing liquid used, the ova, embryos or blastocysts are loaded onto the slide 1 after ES and VS of the sample to be frozen are fully balanced, one hand of the worker holds the handle 7, the other hand holds the connecting part 3 to make the connecting frame 12 align and press down the protrusion 9, the protrusion 9 is inserted into the inner cavity 11, in this process, the slide bar 14 gradually expands the compression spring 15, and is reset under the potential energy of the spring 15 after passing the protrusion 9, the upper plane of the slide bar 14 is attached to the lower bottom surface of the protrusion 9, at this time, the hand holding the handle 7 is released to complete the hanging, the worker aligns the sheath and slowly inserts the sheath 5 under the weight, the heat sealing head and the sheath connection adopt a heat sealing form to seal between the two, after sealing, the sheath is transferred to the liquid nitrogen tank for long-term preservation;

[0027] The thawing process, the worker holds the heat sealing head 4 vertically and pulls it up to extract, after the slide 1 is moved out of the sheath 5, the worker holds the handle 7 with one hand and the connecting part 3 with the other hand to press down, so that the lower inclined surface of the slide bar 14 passes the upper inclined surface of the sliding block 10, then the connecting part 3 is lifted up, the sliding block 10 is driven by the slide bar 14 to rise until the lower bottom surface of the protrusion 9 is attached to continue to lift up, the slide bar 14 gradually expands the compression spring 15, and is reset to release the locking state after passing the protrusion 9 under the potential energy of the spring 15, and the splitting is realized.

[0028] The above is only the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principle of the present application, a number of improvements can be made, these improvements should also be regarded as the protection scope of the present application.

Claims

1. A split glassing freezing carrier pole, characterized by, It includes: The slide (1) for placing sample, and the carrier rod (2) connected with the slide (1), the tail end of the carrier rod is the hand-held part; The connecting part (3) is connected with the heat seal plug (4) at one end, and is matched with the tail end of the hand-held part through the clamping assembly at the other end; The connecting part (3) is inserted into the sheath (5) after being matched with the hand-held part through the clamping assembly.

2. The split glassing freezing carrier rod of claim 1, wherein: The connecting part (3) is inserted into the sheath (5) after being matched with the hand-held part through the clamping assembly.

3. The split glassing freezing carrier rod of claim 1, wherein: The connecting part (3) is inserted into the sheath (5) after being matched with the hand-held part through the clamping assembly.

4. The split glassing freezing carrier rod of claim 3, wherein: The hand-held part has the handle (7), the handle (7) extends the stroke rod (8), the end of the stroke rod (8) is fixedly connected with the protrusion (9), and the sliding block (10) is arranged on the stroke rod (8).

5. The split glassing freezing carrier rod of claim 1, wherein: The sliding block (10) has inward inclined surfaces on the upper side and the lower side. The clamping assembly includes the connecting frame (12) with the inner cavity (11), the connecting frame (12) has the through slot (13) on the side, the sliding rod (14) is arranged in the through slot (13), the spring (15) is arranged on the sliding rod (14), one end of the spring (15) is fixedly connected with the through slot (13), and the other end is fixedly connected with the sliding rod (14).

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