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CN-224206019-U - Sperm freezing descent control device

CN224206019UCN 224206019 UCN224206019 UCN 224206019UCN-224206019-U

Abstract

The utility model relates to a sperm freezing descent control device which comprises a liquid nitrogen tank for containing liquid nitrogen, a pedestal and a controller, wherein a hollow horizontal rod is arranged on the pedestal, a winding wheel is rotatably connected between the inner side walls of the left end of the horizontal rod, a fixed pulley is rotatably connected between the inner side walls of the right end of the horizontal rod, a pull rope is wound on the winding wheel, the free end of the pull rope naturally sags after bypassing the fixed pulley and is detachably connected with a hanging basket for containing a freezing tubule, the left end of the horizontal rod is provided with a motor electrically connected with the controller, the output end of the motor is fixedly connected with the winding wheel, and a distance sensor for monitoring the height between the hanging basket and the liquid nitrogen liquid level in the liquid nitrogen tank is arranged on the hanging basket and is in signal connection with the controller.

Inventors

  • FU LONGLONG
  • ZHOU FANG
  • LU WENHONG
  • GU YIQUN

Assignees

  • 国家卫生健康委科学技术研究所

Dates

Publication Date
20260508
Application Date
20240201

Claims (7)

  1. 1. The sperm freezing descent control device comprises a liquid nitrogen tank (1) for containing liquid nitrogen, a pedestal (2) and a controller, and is characterized in that a hollow horizontal rod (3) is arranged on the pedestal (2), a winding wheel (4) is rotatably connected between the inner side walls of the left end of the horizontal rod (3), a fixed pulley (5) is rotatably connected between the inner side walls of the right end of the horizontal rod (3), a pull rope (6) is wound on the winding wheel (4), and the free end of the pull rope (6) naturally sags after bypassing the fixed pulley (5) and is detachably connected with a hanging basket (7) for containing frozen tubules; The left end of horizon bar (3) is provided with motor (8) with controller electric connection, the output and the winding wheel (4) fixed connection of motor (8), be provided with on hanging flower basket (7) and be used for monitoring hanging flower basket (7) and liquid nitrogen liquid level in liquid nitrogen jar (1) high distance sensor (9), distance sensor (9) and controller signal connection.
  2. 2. The sperm freezing descent control device according to claim 1, wherein an electromagnet (10) electrically connected with the controller is arranged at the free end of the pull rope (6), and a magnet (11) matched with the electromagnet (10) is arranged on the hanging basket (7).
  3. 3. The sperm freezing descent control device according to claim 1, wherein the lateral surface and the bottom surface of the hanging basket (7) are hollow net structures.
  4. 4. The sperm freezing descent control device according to claim 1, wherein an end cover (12) is arranged at the upper end of the liquid nitrogen tank (1).
  5. 5. The sperm freezing descent control device according to claim 1, wherein the winding wheel (4) is coaxially provided with a rotary table (13), the rotary table (13) is arranged outside the horizontal rod (3), a plurality of groove bodies (14) are uniformly arranged at the edges of the rotary table (13), an inner ring steel column (15) is arranged inside the groove bodies (14), the left end of the horizontal rod (3) is provided with a circular shell (16) coaxial with the rotary table (13), and an outer ring steel column (17) is distributed between the circular shell (16) and the rotary table (13).
  6. 6. The sperm freezing descent control device according to claim 1, wherein the motor (8) is a servo motor.
  7. 7. A sperm freezing descent control device according to claim 1, wherein the basket (7) is provided with a temperature sensor in signal connection with a controller.

Description

Sperm freezing descent control device Technical Field The utility model relates to the technical field of sperm freezing, in particular to a sperm freezing descent control device. Background According to a new report issued by the world health organization, a large number of people are affected by infertility, namely 4850 to 7240 pairs of couples have infertility, and the global prevalence of infertility of women of child bearing age is between 12.6% and 17.5% (about one sixth). Fertility preservation is now an important clinical requirement. Sperm freezing is a combination of male fertility and other assisted reproductive technologies and can be applied to clinical treatment in part. Sperm cryopreservation is a 'gold standard' for preserving male fertility at present, and is one of the basic elements of auxiliary reproduction technology. Generally, the semen freezing process comprises the steps of semen collection, quality evaluation, semen dilution, low-temperature balance, liquid nitrogen gas pre-freezing, liquid nitrogen preservation and the like, and related researches at home and abroad are mainly focused on a diluent formula at present, and recently, literature reports suggest that the proportion of diluent and fresh semen to be frozen in frozen semen can have a certain influence on the quality of the thawed semen due to the existence of a dilution effect. However, in actual operation, when the liquid nitrogen gas phase prefreezing operation is performed, the current prefreezing device is a metal pedestal, the tubule is placed on the metal pedestal and then placed into the liquid nitrogen gas phase for prefreezing, but for a long time, researchers and daily producers are not aware that the temperature of the liquid nitrogen gas phase is different along with the height, according to different semen qualities (such as sperm concentration, forward movement semen proportion and the like), the required temperature of the semen in prefreezing is different in practice, if no matter what quality of semen is prefreezed, only a metal pedestal with a fixed height is used, and the height between the frozen tubule and the liquid nitrogen liquid level is not considered, so that the frozen semen quality is reduced, and the inactivation rate is high. Disclosure of utility model The embodiment of the utility model provides a sperm freezing descent control device, which can adjust different liquid nitrogen gas phase prefreezing heights according to different semen quality and can solve the problems of low frozen semen quality and high inactivation rate in the prior art. In order to solve the technical problems, the sperm freezing descent control device comprises a liquid nitrogen tank for containing liquid nitrogen, a pedestal and a controller, wherein a hollow horizontal rod is arranged on the pedestal, a winding wheel is rotationally connected between the inner side walls of the left end of the horizontal rod, a fixed pulley is rotationally connected between the inner side walls of the right end of the horizontal rod, a pull rope is wound on the winding wheel, and the free end of the pull rope naturally sags after bypassing the fixed pulley and is detachably connected with a hanging basket for containing a freezing tubule; The left end of the horizontal rod is provided with a motor electrically connected with the controller, the output end of the motor is fixedly connected with the winding wheel, a distance sensor for monitoring the height between the hanging basket and the liquid nitrogen liquid level in the liquid nitrogen tank is arranged on the hanging basket, and the distance sensor is in signal connection with the controller. Preferably, the free end of the pull rope is provided with an electromagnet electrically connected with the controller, and the hanging basket is provided with a magnet matched with the electromagnet. Preferably, the side surface and the bottom surface of the hanging basket are hollow net structures. Preferably, an end cover is arranged at the upper end of the liquid nitrogen tank. Preferably, the winding wheel is coaxially provided with a turntable, the turntable is arranged outside the horizontal rod, a plurality of groove bodies are uniformly arranged at the edge of the turntable, an inner ring steel column is arranged inside the groove bodies, the left end of the horizontal rod is provided with a circular shell coaxial with the turntable, and an outer ring steel column is fully distributed between the circular shell and the turntable. Preferably, the motor is a servo motor. Preferably, the hanging basket is provided with a temperature sensor in signal connection with the controller. Compared with the prior art, the device and the method have the advantages that through the matching arrangement of the liquid nitrogen tank, the controller, the horizontal rod, the winding wheel, the fixed pulley, the pull rope, the hanging basket, the motor and the distance sensor, the motor is started t