Dry-type cell resuscitation instrument

Abstract

The utility model discloses a dry-type cell resuscitator which comprises a shell and a heating element arranged in the shell, and the heating element comprises a heating sheet used for heating and two heat conduction blocks used for clamping a cryopreservation tube and conducting heat. The resuscitation instrument further comprises a controller with a timer, a temperature sensor arranged in the heat conduction block, a spring ejector pin used for ejecting out the cryopreservation tube and an electromagnetic plug pin used for locking the ejector pin, and the controller is electrically connected with the heating piece, the temperature sensor and the electromagnetic plug pin. The temperature sensor is arranged in the heat conduction block, so that the heat conduction block can be accurately preheated to a set temperature range; by means of the controller with the timer, when the cryopreservation pipe is placed in the preheated heat conduction pipe, heating timing can be conducted, and it is ensured that resuscitation is achieved.

Description

Technical Field

[0001] The utility model belongs to dry cell resuscitation equipment, and particularly relates to a dry cell resuscitator. Background Art

[0002] At present, dry cell resuscitators use resistive heating elements as the core heating components. After these elements are powered on, they generate heat, and the heat is transferred to the cell sample by conduction or radiation, gradually raising its temperature to the set value.

[0003] Although modern temperature control systems can provide relatively high precision, due to the characteristics of the resistive heating elements themselves, it is still challenging to achieve very precise temperature control, especially in applications where temperature fluctuations need to be controlled within a very small range. There are still problems because there is a physical gap between the measurement point of the temperature sensor and the actual temperature control point. The main reason is that the temperature measurement point cannot be placed inside the thawing tube that actually needs to be thawed for precise measurement and control, so there will be a certain gap in temperature control accuracy and speed.

[0004] Therefore, there is an urgent need for a resuscitator that can automatically control heating, precisely control temperature, and the frozen storage tube can automatically pop out for easy access after heating ends. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a dry cell resuscitator that can achieve controls such as automatic preheating and precise heating.

[0006] To solve the above technical problem, the utility model adopts the following technical scheme:

[0007] A dry cell resuscitator includes a housing and a heating element disposed inside the housing. It is characterized in that: the heating element includes a heating sheet for heating and two heat conducting blocks for clamping the frozen storage tube and conducting heat. The resuscitator also includes a controller with a timer, a temperature sensor disposed inside the heat conducting block, a spring ejector pin for ejecting the frozen storage tube, and an electromagnetic plug for locking the ejector pin. The controller is electrically connected to the heating sheet, the temperature sensor, and the electromagnetic plug respectively.

[0008] The spring ejector pin includes an ejector pin body and an ejector pin spring for pushing the ejector pin to move upward. The ejector pin body includes, from top to bottom, an ejecting section located inside the two heat conducting blocks for ejecting the frozen storage tube upward, a conical section for extending into the two heat conducting blocks to separate the two heat conducting blocks, a stop step for stopping the ejector pin from continuing to extend into the frozen storage tube, and a locking section with a plug slot for the electromagnetic plug to lock. The ejector pin spring is sleeved on the ejector pin body and is pressed by the stop step.

[0009] The resuscitator also includes a proximity switch for sensing the position of the stop step, and the controller is electrically connected to the proximity switch.

[0010] The electromagnetic latch comprises a latch, a latch spring driving the latch to insert into a latch slot, and an electromagnet controlling the latch to retract and compress the latch spring.

[0011] The dry cell resuscitation instrument of the utility model has the following advantages:

[0012] 1. By setting the temperature sensor in the heat-conducting block, the heat-conducting block can be accurately preheated to the set temperature range;

[0013] 2. Through the controller with a timer, when the cryopreserved tube is placed in the preheated heat conduction tube, the heating timing can be performed to ensure that the cryopreserved tube is resuscitated;

[0014] 3. By setting a spring ejector, when the cryotube is placed, the ejector body can be pushed down and locked by the electromagnetic latch, and the proximity switch is triggered at the same time, which in turn triggers the controller to start timing, which is more accurate;

[0015] 4. When the timing reaches the set time, the controller controls the electromagnet to be energized, the latch is sucked back, the ejector pin is moved upward by the ejector spring, the two heating blocks are spread apart by the conical section, and the cryotube is ejected by the ejection section. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is described in detail below with reference to the accompanying drawings and specific implementation methods:

[0017] Figure 1 It is a three-dimensional schematic diagram of the dry cell resuscitation instrument of the utility model;

[0018] Figure 2 It is a cross-sectional view of the heating device inside the dry cell resuscitation instrument of the utility model;

[0019] Figure 3 is a top view schematic diagram of a heating device;

[0020] Figure 4 It is a cross-sectional view of the electromagnetic latch of the utility model in a locked state;

[0021] Figure 5 It is a control principle block diagram of the utility model. DETAILED DESCRIPTION

[0022] The utility model provides a dry cell resuscitation instrument, such as Figure 1 As shown, the housing 100 includes a heating device disposed in the housing 100. The housing 100 is also provided with a temperature display screen 101 and a temperature control knob 102. Figures 2-3As shown in the figure, it includes a housing 1 and a heating element. The heating element specifically includes a heat conduction tube 2 and heating sheets 3 circumferentially arranged on the outer wall of the heat conduction tube 2. An axially penetrating tapered cryotube insertion hole 4 is provided in the heat conduction tube 2, and the heat conduction tube 2 is an axially split structure, that is, it is composed of two split heat conduction blocks 21 combined. Rotating shafts 8 are respectively penetrated through the upper parts of the two heat conduction blocks 21, and both ends of the rotating shafts 8 are fixed on the housing 1. Springs are arranged on the outer sides of the lower parts of the two heat conduction blocks 21 to make the two heat conduction blocks 21 swing relatively around their respective rotating shafts 8 and clamp. Through the design of the spring assembly and the rotating shaft 8, the two heat conduction blocks 21 can be in a structure that can float left and right.

[0023] Each spring assembly specifically includes a floating spring 5 that abuts between the outer wall of the lower part of the heat conduction block 21 and the inner wall of the housing 1, a waist-shaped hole 6 vertically opened in the lower part of the housing 1, and a guiding screw 7 with one end passing through the floating spring 5 and fixed on the heat conduction block 21 and the other end passing through the waist-shaped hole 6. Through the floating spring 5, the two heat conduction blocks 21 can be relatively clamped. When the two heat conduction blocks 21 overcome the clamping force and swing open in the reverse direction, the guiding screw 7 can swing in the corresponding waist-shaped hole 6 and play a guiding role for the floating spring 5.

[0024] In order to enable the cryotube 10 after heating and recovery to automatically pop out for convenient taking, the recovery instrument of the present utility model further includes a cryotube ejection mechanism, which specifically includes a thimble 9 that can move upward and extend from the bottom end of the cryotube insertion hole 4, a thimble spring 11 for pushing the thimble 9 to move upward, and an electromagnetic plug for fixing the downward movement of the thimble. The thimble 9 is vertically arranged and successively includes an ejection section 91 for ejecting the cryotube 10, a conical section 92 for separating the two heat conduction blocks 21, a stop step 93 for stopping the further extension of the thimble 9, and a lower section 94 with the lower end passing through the bottom of the housing 1. The bottom of the housing 1 has a bushing 15 for the vertical passage of the lower section 94. The thimble spring 11 is sleeved on the lower section 94 and abuts between the stop step 93 and the bottom of the housing 1. An insertion slot 95 for cooperating with the electromagnetic plug to lock is further provided on the lower section 94.

[0025] The electromagnetic plug mainly includes a plug 12, a plug spring 13 for driving the plug 12 to insert into the insertion slot 95, and an electromagnet 14 for controlling the retraction of the plug 12 and compressing the plug spring 13.

[0026] In order to achieve automatic and precise temperature control, the recovery instrument of the present utility model further includes a controller 103 with a timer, a temperature sensor 104 arranged in the heat conduction block 21. In addition, a proximity switch 105 for sensing the position of the stop step 93 can also be included. The controller 103 is electrically connected to the temperature sensor 104, the electromagnet, and the proximity switch 105 respectively.

[0027] Initially, the ejecting section 91 and the tapered section 92 of the ejector pin 9 extend into the heat conduction tube 2 from bottom to top and are stopped by the stop step 93, while the latch is pressed against the outer wall of the lower section 94 below the latch groove 95 by the elastic force of the third spring 13. When resuscitation is required, first, the controller 103 controls the heating sheet to perform y preheating, and the temperature sensor 104 measures the temperature of the heat conduction block. When the measured temperature reaches the set range, the temperature rise is stopped and maintained within the fluctuation range of the set temperature. At this time, the cryopreservation tube 10 is placed into the heat conduction tube 2 from the upper end of the heat conduction tube 2 downward and abuts against the ejector pin 9 and moves downward until it is installed in place. The tapered section 92 is just completely ejected from the heat conduction tube 2. The two heat conduction blocks 21 of the heat conduction tube 2 are respectively clamped against the cryopreservation tube 10 by the elastic force of the floating spring 5, so that the tapered cryopreservation tube placement hole 4 formed is completely fitted to the cryopreservation tube 10. At the same time, the latch groove 95 moving downward with the lower section 94 is just inserted and locked by the latch 12 under the action of the third spring 13, and the ejector pin spring 11 is compressed. The stop step also just triggers the proximity switch 105. When the controller 103 receives the signal of the proximity switch 105, it starts timing. When the timing reaches the set time (this set time is determined through multiple calculations and tests), at this time, the dry cells in the cryopreservation tube are just heated and resuscitated. At the same time, the controller 103 controls the electromagnet 14 to be energized to suck back the latch 12, and the ejector pin 9 moves upward under the action of the ejector pin spring 11, so that the ejecting section 91 and the tapered section 92 extend into the heat conduction tube 2 in sequence. The two heating blocks are swung open to both sides through the tapered section 92, and the cryopreservation tube 10 is pushed upward out of the heat conduction tube 2 through the ejecting section 91, and the cryopreservation tube 10 is taken out to complete the resuscitation operation.

[0028] However, those of ordinary skill in the art in this technical field should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. As long as it is within the scope of the essential spirit of the present invention, the changes and modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A dry cell resuscitation instrument, comprising a housing and a heating element disposed in the housing, characterized in that: The heating element includes a heating plate for heating and two heat-conducting blocks for clamping the cryotube and conducting heat. The resuscitation device also includes a controller with a timer, a temperature sensor arranged in the heat-conducting block, a spring ejector pin for ejecting the cryotube, and an electromagnetic latch for locking the ejector pin. The controller is electrically connected to the heating plate, the temperature sensor, and the electromagnetic latch respectively.

2. The dry cell resuscitation instrument according to claim 1, characterized in that: The spring ejector includes an ejector body and an ejector spring for pushing the ejector upward. The ejector body includes, from top to bottom, an ejection section located in the two heat-conducting blocks for ejecting the cryogenic tube upward, a conical section for extending into the two heat-conducting blocks to push the two heat-conducting blocks apart, a stop step for stopping the ejector from continuing to extend into the cryogenic tube, and a locking section with a latch groove for locking the electromagnetic latch. The ejector spring is sleeved on the ejector body and pressed by the stop step.

3. The dry cell resuscitation instrument according to claim 1, characterized in that: The resuscitation apparatus further comprises a proximity switch for sensing the position of the stop step, and the controller is electrically connected to the proximity switch.

4. The dry cell resuscitation instrument according to claim 1, characterized in that: The electromagnetic latch comprises a latch, a latch spring driving the latch to insert into a latch slot, and an electromagnet controlling the latch to retract and compress the latch spring.

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