Freezing straw facilitating freezing operation and positioning storage

Abstract

The utility model relates to a freezing straw convenient for freezing operation and positioning storage, which comprises a loading rod and an outer sleeve which are mutually inserted, and the loading rod is respectively provided with a loading part, a guide part, a connecting part and a handle from near to far in the direction far away from the outer sleeve; an inserting hole is formed in the end, close to the carrying rod, of the outer sleeve, and a guiding part extending outwards is arranged on one side of the end of the inserting hole; a loading groove is formed in the side, close to the outer sleeve, of the loading part, a guide groove is formed in the end, close to the outer sleeve, of the handle, and an opening of the guide groove points to the guide part; compared with an original frozen straw, the frozen straw facilitating freezing operation and positioning storage is provided with the guide part at the end opening of the outer sleeve, so that a carrying rod can be conveniently, rapidly and accurately inserted; a guide groove is formed in the position, corresponding to the guide part, of the carrying rod, so that the relative position of the carrying groove in the outer sleeve can be fixed, the orientation of the embryo surface can be quickly locked, and an operator can quickly complete freezing or unfreezing operation conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical treatment especially relates to a frozen macaroni pipe convenient to freeze operation and positioning storage. BACKGROUND

[0002] In the process of human assisted reproductive technology implementation, human gametes and embryos need to be operated in vitro, and embryo freezing and thawing are indispensable operations. The frozen macaroni pipe as the carrier of frozen storage generally includes a carrier rod loaded with embryos and an outer sleeve pipe sealing the carrier rod. When freezing embryos, the outer sleeve pipe needs to be placed in a liquid nitrogen transfer device first, and after the carrier rod is loaded with embryos, it needs to be quickly put into the liquid nitrogen transfer device and inserted into the outer sleeve pipe. In the operation of the sleeve pipe, the embryo loading part of the carrier rod needs to be located in the liquid nitrogen. Finally, the frozen macaroni pipe with the sleeve is placed in an aluminum frame and stored in a liquid nitrogen storage tank for freezing.

[0003] When thawing embryos, the aluminum frame is taken out from the liquid nitrogen storage tank, and the frozen macaroni pipe is put into liquid nitrogen. The operator needs to hold the handle at the tail of the carrier rod and separate the outer sleeve pipe. During the thawing operation, the embryo loading part of the carrier rod needs to be kept in the liquid nitrogen. Finally, the orientation of the embryo loading part of the carrier rod is confirmed, the handle holding direction is adjusted, and the carrier rod is moved to the thawing liquid, with the embryo loading part facing downward, so that the embryo quickly separates from the carrier rod to complete the recovery in the thawing liquid as soon as possible.

[0004] In the existing operation process, the insertion of the carrier rod and the outer sleeve pipe is carried out in liquid nitrogen. Due to the influence of liquid nitrogen vapor, it is difficult to accurately and quickly insert them, which may affect the freezing effect of embryos and the continuous operation of batch freezing. In addition, during the thawing process, the orientation of the embryo loading part cannot be quickly locked, which prolongs the thawing operation time and affects the thawing effect of embryos. Furthermore, when the cylindrical frozen macaroni pipe is placed on the aluminum frame, it can be placed at different angles, which makes the orientation of the frozen macaroni pipe not uniform, and it is difficult to quickly confirm the label attached to the surface during thawing, affecting the work efficiency. UTILITY MODEL CONTENTS

[0005] The utility model relates to a frozen macaroni pipe convenient to freeze operation and positioning storage, which can quickly and accurately insert the carrier rod through the guide part arranged at the port of the outer sleeve pipe. The guide groove arranged at the corresponding position of the carrier rod can fix the relative position of the loading groove in the outer sleeve pipe, quickly lock the orientation of the embryo surface, and facilitate the operator to quickly complete the freezing or thawing operation. The end of the outer sleeve pipe away from the carrier rod is provided with a counterweight, so that when the outer sleeve pipe is placed in liquid nitrogen, the insertion hole end is inclined upward, facilitating the operator to quickly position the outer sleeve pipe, and greatly improving the work efficiency. The fixed table arranged on the carrier rod and the outer sleeve pipe is lapped on the aluminum frame, so that the position of the frozen macaroni pipe in the aluminum frame is fixed, facilitating the identification and confirmation of the label.

[0006] The technical scheme of the utility model discloses the following:

[0007] A frozen wheat pipe convenient for freezing operation and positioning storage, including mutually inserting carrier and outer sleeve, in the direction away from the outer sleeve, from near to far, the carrier is provided with loading part, guide part, connecting part and handle respectively, the one end of the outer sleeve close to the carrier is provided with the inserting hole, the side of the inserting hole end part is provided with the outer extension guide part, the side close to the outer sleeve of the loading part is provided with the loading groove, the one end close to the outer sleeve of the handle is provided with the guide groove, and the opening of the guide groove points to the guide part.

[0008] Among them, the radial section of the guide part is annular arc, the central angle corresponding to the circular arc is 90°~120°, the inner diameter of the guide part is equal to the diameter of the inserting hole, and the outer diameter of the guide part is equal to the diameter of the outer sleeve.

[0009] Among them, the diameter of the connecting part is equal to or slightly larger than the diameter of the inserting hole, and the diameter of the handle is equal to the diameter of the outer sleeve, the end part of the outer extension of the guide part is provided with the inserting positioning part, the projection of the guide groove and the inserting positioning part in the horizontal direction is in the shape of splayed, and the splayed profile of the guide groove is slightly larger than the inserting positioning part.

[0010] Among them, the loading part is semicylindrical, the guide part is conical frustum, including small circular platform connected with the loading part and large circular platform connected with the connecting part, the diameter of the small circular platform is equal to the diameter of the loading part, and the diameter of the large circular platform is equal to the diameter of the connecting part.

[0011] Among them, the length of the guide part is 2~3cm, and the length of the connecting part and the guide groove is slightly larger than the length of the guide part.

[0012] Among them, the loading part, the guide part, the connecting part and the handle are integrally formed.

[0013] Among them, the side away from the guide part of the outer sleeve is provided with an eccentric counterweight, and the counterweight is in the length direction of the guide part.

[0014] Among them, the outer wall of the outer sleeve and the carrier is provided with a fixed table on the side close to the guide part respectively, and the fixed table is perpendicular to the axial direction of the outer sleeve and the carrier.

[0015] The utility model has the following beneficial effects:

[0016] 1. Compared with the original frozen wheat tube, the guide part arranged at the port of the outer sleeve can facilitate the quick and accurate insertion of the carrier rod into the outer sleeve, and the carrier rod handle is provided with a guide groove at the corresponding position of the guide part, the guide groove and the guide part are matched and positioned during the insertion process, the relative position of the loading groove in the outer sleeve can be fixed, the orientation of the embryo surface can be quickly locked, and the freezing or thawing operation of the operating personnel can be quickly completed.

[0017] 2. One end of the outer sleeve away from the carrier rod is provided with a counterweight, so that when the outer sleeve is placed in liquid nitrogen, the insertion hole end thereof is inclined upward; the counterweight is eccentrically arranged and located on the extension line of the guide part, so that the inner recess direction of the guide part faces upward when the outer sleeve is in liquid nitrogen, the outer sleeve is quickly positioned by the operating personnel, and the operation efficiency is greatly improved.

[0018] 3. The fixed table serves as a stable bearing surface, when the frozen wheat tube is placed on the aluminum frame, the position of the frozen wheat tube in the aluminum frame can be fixed, and the information label on the frozen wheat tube can be quickly identified and confirmed by the operating personnel.

[0019] 4. The guide part is a non-closed annular arc, which is different from the cylindrical tube body of the frozen wheat tube, the orientation of the loading part in the outer sleeve can be quickly confirmed, the orientation of the embryo loading part under liquid nitrogen does not need to be found and the position is adjusted during thawing, and the timeliness and convenience of thawing are improved.

[0020] 5. The combination surface boundary line of the carrier rod and the outer sleeve is not on the same plane, when the carrier rod is inserted into the outer sleeve, the extrusion force of the outer sleeve on the carrier rod is not a ring-shaped holding force, but also includes a lateral extrusion force on the guide part, so that the carrier rod is not easy to be stuck, the separation of the carrier rod and the outer sleeve is facilitated, and the risk that the embryo is damaged due to falling caused by forced separation can be avoided. DETAILED DESCRIPTION

[0021] Fig. 1 is a schematic view of the utility model;

[0022] Fig. 2 is a bottom view of the utility model;

[0023] Fig. 3 is a schematic view of the outer sleeve of the utility model.

[0024] In the drawing, the reference signs are represented as:

[0025] 1-carrier rod, 2-outer sleeve, 3-loading part, 4-guide part, 5-connection part, 6-handle, 7-insertion hole, 8-guide part, 9-loading groove, 10-guide groove, 11-insertion positioning part, 12-counterweight, 13-fixed table. DETAILED DESCRIPTION

[0026] The utility model will be explained in detail below in combination with the drawings and specific embodiments.

[0027] Referring to Figs. 1 to 3 A frozen tube convenient for freezing operation and positioning storage, comprising a carrier rod 1 and an outer sleeve 2 which are inserted into each other, wherein the carrier rod 1 is provided with a loading part 3, a guide part 4, a connecting part 5 and a handle 6 from near to far in the direction away from the outer sleeve 2, and the loading part 3, the guide part 4, the connecting part 5 and the handle 6 are integrally formed; one end of the outer sleeve 2 close to the carrier rod 1 is provided with an insertion hole 7, the depth of the insertion hole 7 is greater than the sum of the lengths of the loading part 3, the guide part 4 and the connecting part 5, and one side of the end of the insertion hole 7 is provided with an outwardly extending guide part 8; one side of the loading part 3 close to the outer sleeve 2 is provided with a loading groove 9, and the loading groove 9 is used for loading embryos; one end of the handle 6 close to the outer sleeve 2 is provided with a guide groove 10, and the opening of the guide groove 10 points to the guide part 8; through the guide part 8 provided at the port of the outer sleeve 2, the carrier rod 1 can be quickly and accurately inserted into the outer sleeve 2, and the line of sight will not be disturbed by the liquid nitrogen vapor.

[0028] Further, the radial section of the guide part 8 is an annular arc, the corresponding central angle of the arc is 90°-120°, the guide part 8 is different from the cylindrical tube body of the frozen tube, the orientation of the loading part 3 in the outer sleeve 2 can be quickly confirmed, and the orientation of the loading part 3 does not need to be found and the position does not need to be adjusted under the liquid nitrogen when thawing; the inner diameter of the guide part 8 is equal to the diameter of the insertion hole 7, the outer diameter of the guide part 8 is equal to the diameter of the outer sleeve 2, and the loading part 3 of the carrier rod 1 can be inserted into the insertion hole 7 along the guide part 8.

[0029] Further, the diameter of the connecting part 5 is equal to or slightly larger than the diameter of the insertion hole 7, and after the connecting part 5 is inserted into the insertion hole 7, the carrier rod 1 and the outer sleeve 2 can be fixed; the diameter of the connecting part is slightly larger than the diameter of the insertion hole, which means that a slight interference fit is formed between the two. This design can generate enough friction after the carrier rod is inserted into the outer sleeve, preventing the carrier rod from being accidentally loosened, ensuring the stable storage of embryos in the liquid nitrogen environment, and avoiding embryo damage or positioning failure caused by loosening. The diameter of the handle 6 is equal to the diameter of the outer sleeve 2, which ensures that the overall diameter of the frozen straw is the same, and the edge can be transported; the length of the guide part 8 is 2-3 cm, and the length of the connecting part 5 and the guide groove 10 is slightly larger than the length of the guide part 8, which ensures that the connecting part can fully enter the inside of the insertion hole when the carrier rod is inserted into the outer sleeve, and realizes complete coverage and sealing. This prevents liquid nitrogen from penetrating or embryos from being exposed, and ensures the freezing effect. The guide part 8 is an overhanging structure, so that the boundary line of the combination surface of the carrier rod 1 and the outer sleeve 2 is not on the same plane, and when the carrier rod 1 is inserted into the outer sleeve 2, the extrusion force of the outer sleeve 2 on the carrier rod 1 is not a complete ring-shaped force, but also includes a lateral extrusion force on the guide part 8, so that the carrier rod 1 is not easy to be stuck, and the separation of the carrier rod 1 and the outer sleeve 2 is facilitated; the overhanging end of the guide part 8 is provided with an insertion positioning part 11, the projection of the guide groove 10 and the insertion positioning part 11 in the horizontal direction is in the shape of a splay, and the splay-shaped profile of the guide groove 10 is slightly larger than the insertion positioning part 11, so that there is a certain fault tolerance space in the insertion process. The operator does not need to accurately align to quickly insert the guide part into the guide groove, which reduces the difficulty of repeated adjustment under the interference of liquid nitrogen vapor, improves the efficiency of freezing or thawing operation, and the guide groove 10 and the guide part 8 fit in position during the insertion process, which can fix the relative position of the loading groove 9 in the outer sleeve 2, quickly lock the direction of the embryo surface, and facilitate the operator to quickly complete the freezing or thawing operation.

[0030] Further, the loading part 3 is semicylindrical, and the guide part 4 is conical frustum-shaped, including a small circular platform connected with the loading part 3 and a large circular platform connected with the connecting part 5, the diameter of the small circular platform is equal to the diameter of the loading part 3, and the diameter of the large circular platform is equal to the diameter of the connecting part 5; the guide part 4 can guide the moving direction of the carrier rod 1, so that the insertion of the carrier rod 1 is more stable and accurate, and the embryo can be prevented from falling off.

[0031] Further, referring to Fig. 3 , one side of the outer sleeve 2 away from the guide part 8 is provided with an eccentric counterweight 12, and the counterweight 12 makes one end of the insertion hole 7 of the outer sleeve 2 tilt upward when the outer sleeve 2 is placed in liquid nitrogen; because the counterweight 12 is eccentrically arranged and located on the extension line of the guide part 8, the inner concave direction of the guide part 8 is upward when the outer sleeve 2 is in liquid nitrogen, which facilitates the operator to quickly position the outer sleeve 2.

[0032] Further, the outer sleeve 2 and the outer wall of the carrier 1 are provided with a fixing table 13 near the guide part 8, the fixing table 13 is perpendicular to the axial direction of the outer sleeve 2 and the carrier 1; when the frozen straw is placed on the aluminum frame, the fixing table 13 can fix the position of the frozen straw in the aluminum frame, so that the operator can quickly identify and confirm the information label on the frozen straw.

[0033] The working principle of the utility model is as follows:

[0034] First, the outer sleeve 2 is placed in the liquid nitrogen transfer device, and the outer sleeve 2 floating in the liquid nitrogen is caused to have the inner concave direction of the guide part 8 upwardly due to the action of the counterweight 12; then the embryo is dropped in the loading groove 9 of the loading part 3, and the loading part 3 is quickly immersed in the liquid nitrogen; the outer sleeve 2 is fixed by using the tweezers, the handle 6 is held, and the loading part 3 of the carrier 1 is overlapped on the guide part 8, and then the loading part 3 is pushed into the insertion hole 7 along the guide part 8; during the insertion process of the carrier 1 and the outer sleeve 2, the guide part 8 is limited by the guide groove 10, when the insertion is completed, the end part of the guide part 8 is clamped into the guide groove 10, and the connecting part 5 is clamped tightly with the insertion hole 7; then the inserted frozen straw is placed on the aluminum frame, the support part of the aluminum frame is supported at the position of the fixing table 13, so that the position of the frozen straw on the aluminum frame is fixed; finally, the aluminum frame is placed in the liquid nitrogen storage tank for storage.

[0035] When thawing, the aluminum frame is taken out from the liquid nitrogen storage tank, the orientation of the loading groove 9 is confirmed by observing the position of the guide part 8; then the outer sleeve 2 is clamped by using the tweezers, and the handle 6 is held by hand, and the carrier 1 is quickly pulled out; after the carrier 1 is pulled out, the loading part 3 is immersed in the thawing liquid, and the loading groove 9 faces downward, and then the next thawing and embryo extraction operation is carried out.

[0036] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation according to the content of the utility model specification and the drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A frozen wheat straw that is easy to freeze and store in a designated location, characterized in that: The device includes a carrier rod (1) and an outer tube (2) that are inserted into each other. In the direction away from the outer tube (2), the carrier rod (1) is provided with a loading part (3), a guide part (4), a connecting part (5) and a handle (6) from near to far. The outer tube (2) is provided with a plug hole (7) at one end near the carrier rod (1), and an outward guide part (8) is provided on one side of the end of the plug hole (7). The loading part (3) is provided with a loading groove (9) at one side near the outer tube (2), and the handle (6) is provided with a guide groove (10) at one end near the outer tube (2), and the opening of the guide groove (10) points to the guide part (8).

2. The frozen wheat straw as described in claim 1, characterized in that: The radial section of the guide part (8) is an annular arc, and the central angle corresponding to the arc is 90°~120°. The inner diameter of the guide part (8) is equal to the diameter of the insertion hole (7), and the outer diameter of the guide part (8) is equal to the diameter of the outer sleeve (2).

3. A frozen wheat straw as described in claim 2, characterized in that: The diameter of the handle (6) is equal to the diameter of the outer tube (2); the extended end of the guide (8) is provided with a plug-in positioning part (11), and the projection of the guide groove (10) and the plug-in positioning part (11) in the horizontal direction is a figure-eight shape.

4. A frozen wheat straw as described in claim 3, characterized in that: The loading part (3) is semi-cylindrical, and the guide part (4) is frustum-shaped, including a small frustum connected to the loading part (3) and a large frustum connected to the connecting part (5). The diameter of the small frustum is equal to the diameter of the loading part (3), and the diameter of the large frustum is equal to the diameter of the connecting part (5).

5. A frozen wheat straw as described in claim 1, characterized in that: The length of the guide part (8) is 2~3cm.

6. A frozen wheat straw as described in claim 1, characterized in that: The loading part (3), guide part (4), connecting part (5) and handle (6) are integrally formed.

7. A frozen wheat straw as described in claim 1, characterized in that: An eccentric counterweight (12) is provided on the side of the outer tube (2) away from the guide (8), and the counterweight (12) is in the direction of extension of the length of the guide (8).

8. A frozen wheat straw as described in claim 1, characterized in that: The outer walls of the outer sleeve (2) and the carrier rod (1) are respectively provided with a fixing platform (13) on the side near the guide part (8), and the fixing platform (13) is perpendicular to the axis of the outer sleeve (2) and the carrier rod (1).

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