Body fluid sample inspection device for endocrinology department

By using a rotating blood collection tube holder and an intelligent electromagnetic control system, the problems of sample instability and inconvenient operation in the endocrinology department's body fluid sample delivery device have been solved, achieving stable transportation and efficient management of blood collection tubes, and improving the service life of the device and the stability of the control signal.

CN224117827UActive Publication Date: 2026-04-14黎俊森
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing endocrinology fluid sample delivery devices suffer from limitations such as a single sample fixation method, insufficient ease of operation, lack of intelligent control, and structural reliability defects, resulting in sample instability during transportation and a short service life.

Method used

The tube clamp structure, which combines a rotating blood collection tube placement rack with an arc-shaped metal spring and staggered teeth, and an intelligent control system that combines electromagnetic attraction and permanent magnet force, ensures the stability of the blood collection tubes during transportation and the efficiency of sample management. The stability of the control signal is improved through the separation of strong and weak currents and anti-interference measures.

Benefits of technology

It achieves stable and reliable fixation of blood collection tubes during transportation, improves sample storage and retrieval efficiency, reduces human error and energy consumption, extends the service life of the device, and adapts to complex medical environments.

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Abstract

The utility model discloses an endocrinology department body fluid sample inspection device which comprises a box body, a box door is installed on one side of the box body, a rotary blood collection tube placing frame is installed in the box body, and a plurality of placing grooves are formed in the placing frame at equal intervals. A first magnetic block and a second magnetic block are fixedly installed at the end, away from the supporting shaft, of the transverse rod, clamping grooves are correspondingly formed in the box body, silica gel damping strips are arranged on the inner walls of the clamping grooves corresponding to the first magnetic block and the second magnetic block, an electromagnet is installed on the side, corresponding to the first magnetic block and the second magnetic block, in the box body, and a main control panel is installed in the box body; the electromagnet is electrically connected with the main control board, a microswitch is arranged on the inner side of the box door, the microswitch is electrically connected with the main control board, the main control board is triggered through the microswitch on the inner side of the box door, when the box door is closed, the microswitch is switched on, the main control board sends a power-on signal to the electromagnet, and when the box door is opened, power is automatically cut off. The device is convenient to use, ingenious in structural design and convenient to use.
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Description

Technical Field

[0001] This utility model relates to the medical field, specifically to a device for submitting body fluid samples in the endocrinology department. Background Technology

[0002] In the field of medical testing, the delivery of body fluid samples from endocrinology departments places high demands on sample stability, storage efficiency, and transportation safety. Existing delivery devices generally suffer from problems such as limited sample fixation methods, insufficient ease of operation, lack of intelligent control, and structural reliability defects. For example, traditional devices often use open slots or elastic cords to fix blood collection tubes, which are prone to sample tilting, label wear, or even tube breakage due to vibration during transportation; multi-layer placement racks require frequent opening and closing of the cabinet door for layer-by-layer operation, which can easily lead to operational errors by medical staff in busy situations; electromagnetic locking devices rely on manual switch control, which carries the risk of battery over-consumption due to forgetting to turn off the power or locking failure when the cabinet door is not fully closed; magnetic adsorption structures often experience collision wear due to positioning deviations or rigid contact, which can easily lead to problems such as rack shaking and jamming after long-term use, affecting the lifespan of the device and sample safety. Summary of the Invention

[0003] To achieve the above objectives, this utility model provides the following technical solution:

[0004] An endocrinology fluid sample delivery device includes a housing with a door on one side. A rotating blood collection tube holder is installed inside the housing. The blood collection tube holder includes a vertical support shaft fixedly installed on one side of the housing. Several rotating bearings are sleeved on the support shaft. A horizontal bar is fixedly installed on the outside of each rotating bearing. Vertical bars are fixed at both ends of the horizontal bars. A placement frame is fixedly connected to the bottom of two vertical bars. The device is characterized in that several placement slots are evenly spaced on the placement frame. A first magnetic block is fixedly installed at the end of the horizontal bar away from the support shaft. A slot is provided inside the housing corresponding to the position where the first magnetic block is installed, allowing the first magnetic block to be engaged and positioned within the slot. A second magnetic block is fixedly installed at the end of the placement rack away from the support shaft. A slot is provided inside the box corresponding to the position where the second magnetic block is installed, and the second magnetic block can be locked into the slot for limitation. The inner walls of the slots corresponding to the first and second magnetic blocks are provided with silicone damping strips. An electromagnet is installed on one side of the box corresponding to the first and second magnetic blocks. When the electromagnet is energized, it generates an electromagnetic attraction force on the first and second magnetic blocks. A main control board is installed inside the box, and the electromagnet is electrically connected to the main control board. A micro switch is provided inside the box door, and the micro switch is electrically connected to the main control board. The main control board is triggered by the micro switch inside the box door. When the box door is closed, the micro switch is turned on, and the main control board sends an energizing signal to the electromagnet. The power is automatically cut off when the box door is opened.

[0005] Furthermore, the circuit composition includes a power supply module, a main control board, a relay module, an electromagnet, and a micro switch. The main control board includes a control chip, whose input pins are electrically connected to the micro switch, and whose output pins are electrically connected to the relay module. The relay module includes a relay drive circuit and a relay. The relay drive circuit uses a transistor to drive the relay coil. The base of the transistor is electrically connected to the output pin of the control chip, the emitter of the transistor is grounded, and the collector of the transistor is electrically connected to one end of the relay coil. The other end of the relay coil is connected in parallel with a diode and electrically connected to the power supply module. The relay contacts are connected in series in the electromagnet power supply circuit.

[0006] Furthermore, the crossbar is provided with several tube clamp structures at equal intervals, the positions of the tube clamp structures correspond to the placement slots, and the tube clamp structure includes an arc-shaped metal spring piece, with gripping clips on both sides of the metal spring piece. The blood collection tube is fixed and removed by opening and closing the gripping clips.

[0007] Furthermore, the metal spring is provided with spring fixing straps on both sides, and the spring fixing straps are fixed to the corresponding positions of the crossbar by fixing bolts. The metal spring is provided with gripping clips on both sides.

[0008] Furthermore, the grippers on both sides of the metal spring include a right gripper and a left gripper, and both the right gripper and the left gripper are provided with locking teeth, which are interlocked and engaged with each other.

[0009] Furthermore, the crossbar has a matching spring groove at the position where the metal spring is set.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] In sample management, this invention features a rotating blood collection tube holder that, through the cooperation of a support shaft and a rotating bearing, allows a single-layer holder to rotate independently out of the box, avoiding interference from multi-layer operations and significantly improving sample storage and retrieval efficiency. The tube clamp structure employs an arc-shaped metal spring and staggered teeth design; when a blood collection tube is inserted, the spring deformation triggers the clamp to automatically close. Combined with the positioning support of the bottom placement slot, this forms a dual fixing structure of "upper clamping and lower positioning," ensuring stable and reliable transport of blood collection tubes of different sizes. Regarding intelligent control, a microswitch inside the box door is linked with the main control board and electromagnet. When the box door is closed, the electromagnet is automatically powered on, and the placement rack is securely locked through the superposition of electromagnetic attraction and permanent magnet force. When the box door is opened, the electromagnet is automatically de-energized, allowing the shelves to be easily pulled out without manual operation, avoiding human error and reducing energy consumption. In terms of structural design, the silicone damping strip on the inner wall of the card slot and the insulating anti-slip layer on the surface of the electromagnet reduce rigid contact and wear, thereby improving the stability and service life of the device. The circuit system adopts a strong and weak current separation layout and anti-interference measures to ensure stable transmission of control signals and adapt to the complex electromagnetic interference scenarios in the medical environment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this application;

[0013] Figure 2 This is a schematic diagram of the internal structure of this application;

[0014] Figure 3 This is the circuit schematic diagram of this application;

[0015] Figure 4 This is a partial structural diagram of the pipe clamp structure of this application;

[0016] Figure 5 This is a schematic diagram of the open state of the pipe clamp structure of this application;

[0017] Figure 6 This is a schematic diagram of the closed state of the pipe clamp structure of this application.

[0018] In the diagram, 100. Box body, 101. Box door, 102. Support shaft, 103. Rotary bearing, 104. Horizontal bar, 105. Vertical bar, 106. Placement rack, 107. Placement slot, 108. First magnetic block, 109. Electromagnet, 110. Spring groove, 111. Second magnetic block, 200. Pipe clamp structure, 201. Metal spring, 202. Right gripper, 203. Left gripper, 204. Spring fixing band, 205. Fixing bolt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This application provides a device for submitting body fluid samples in an endocrinology department, such as... Figures 1-6As shown, the device includes a housing 100, with a door 101 installed on one side. A rotating blood collection tube holder is installed inside the housing 100. The blood collection tube holder includes a vertical support shaft 102 fixedly installed on one side of the inside of the housing 100. Several rotating bearings 103 are sleeved on the support shaft 102. A crossbar 104 is fixedly installed on the outside of each rotating bearing 103. Vertical rods 105 are fixedly installed at both ends of the crossbar 104. A placement frame 106 is fixedly connected to the bottom of the two vertical rods 105. Several placement slots 107 are evenly spaced on the placement frame 106. Several tube clamp structures 200 are evenly spaced on the crossbar 104. The position corresponds to the placement slot 107. The tube clamp structure 200 includes an arc-shaped metal spring 201. The metal spring 201 has spring fixing straps 204 on both sides. The spring fixing straps 204 are fixed to the corresponding positions of the crossbar 104 by fixing bolts 205. The metal spring 201 has gripping clips on both sides. The gripping clips on both sides of the metal spring 201 include a right gripping clip 202 and a left gripping clip 203. Both the right gripping clip 202 and the left gripping clip 203 have locking teeth. The locking teeth of the right gripping clip 202 and the left gripping clip 203 are interlocked. The crossbar 104 has a matching spring groove 110 at the position where the metal spring 201 is set. The blood collection tube is fixed and taken out by opening and closing the gripping clips. A first magnetic block 108 is fixedly installed at one end of the crossbar 104 away from the support shaft 102. An electromagnet 109 is installed inside the housing 100 on one side corresponding to the first magnetic block 108. The surface of the electromagnet 109 is covered with an insulating and anti-slip layer to avoid direct rigid contact with the first magnetic block. A slot is provided inside the housing 100 at the position corresponding to the installation of the first magnetic block 108. The first magnetic block 108 can be inserted into the slot for limitation. A second magnetic block 111 is fixedly installed at one end of the placement rack 106 away from the support shaft 102. A slot is provided inside the housing 100 at the position corresponding to the installation of the second magnetic block 111. The second magnetic block 111 can be inserted into the slot for limitation. A silicone damping strip is provided on the inner wall of the slot. When the magnetic block is inserted, a damping force is generated to prevent the magnetic block from slipping. When the electromagnet 109 is energized, it generates an electromagnetic attraction force on the first magnetic block 108 and the second magnetic block 111.

[0021] The main control board is installed inside the enclosure 100. The electromagnet 109 is electrically connected to the main control board. A micro switch is provided inside the enclosure door 101. The micro switch is electrically connected to the main control board. The main control board is installed inside the enclosure 100 and integrates a relay module to control the power supply to and from the electromagnet 109. The main control board is triggered by the micro switch inside the enclosure door 101. When the enclosure door 101 is closed, the micro switch is turned on, and the main control board sends a power-on signal to the electromagnet 109. When the enclosure door 101 is opened, the power is automatically cut off.

[0022] like Figure 3As shown, the circuit consists of a power supply module, a control chip, a relay module, an electromagnet, and a micro switch. The input pin of the control chip is electrically connected to the micro switch, and the output pin of the control chip is electrically connected to the relay module. The relay module includes a relay driver circuit and a relay. The relay driver circuit uses a transistor to drive the relay coil. The base of the transistor is electrically connected to the output pin of the control chip, the emitter of the transistor is grounded, and the collector of the transistor is electrically connected to one end of the relay coil. The other end of the relay coil is connected in parallel with a diode and electrically connected to the power supply module. The relay contacts are connected in series in the electromagnet power supply circuit. The power supply module is also electrically connected to the VCC pin of the main control chip, the electromagnet, and the micro switch.

[0023] In specific implementation, an electrical box is configured inside the enclosure 100 to house the circuit components. It can be fixed in the middle of the side wall of the enclosure 100 (on the same side as the support shaft 102). The main control board adopts a multi-layer PCB design, integrating the control chip, relay drive circuit (including transistors and freewheeling diodes), and power management module. The power module is powered by a rechargeable energy storage lithium battery with a voltage range of 12V-24V and a capacity of ≥2000mAh. The power module includes three outputs: 3.3V, 5V, and 12V. The 3.3V power supply uses an AMS1117-3.3 voltage regulator chip to power the control chip and micro switch. The 5V power supply uses an LM2596S-5.0 step-down module to power the relay coil. The 12V power supply is directly taken from the energy storage battery or filtered to power the electromagnet. The control chip uses an STM32F103C8T6 microcontroller as the core control unit. The STM32F103C8T6's VCC pin is connected to a 3.3V power supply, its GND pin is grounded, and its input pin (PA0) is connected to a microswitch to detect the door status. Its output pin (PA1) is connected to a relay driver circuit to control the electromagnet's on / off state. The microswitch is normally closed and installed inside the door. One end of the microswitch is connected to 3.3V, and the other end is electrically connected to the STM32F103C8T6 input pin (PA0). When the door is closed, PA0 is high; when the door is open, PA0 is low (due to an internal pull-up resistor). The relay drive circuit uses a transistor to drive the relay coil. The output pin (PA1) of the STM32F103C8T6 is electrically connected to the base of the transistor, the emitter of the transistor is grounded, and the collector of the transistor is electrically connected to one end of the relay coil. The other end of the relay coil is connected to a 5V power supply. A freewheeling diode is connected in parallel across the two ends of the relay coil (the positive terminal is connected to the low potential end of the coil, and the negative terminal is connected to the high potential end). One end of the electromagnet is electrically connected to the relay contact, and the other end is connected to the positive terminal of the 12V power supply. The negative terminal of the 12V power supply is grounded. When energized, it generates an electromagnetic attraction force, which cooperates with the magnetic block to fix the placement frame.

[0024] During operation, when the cabinet door is closed, the microswitch is activated, PA0 detects a high level, the STM32F103C8T6 controls PA1 to output a high level, the transistor conducts, the relay coil is energized and closes, the contacts close, the electromagnet is energized and generates an attractive force, which cooperates with the magnetic block to fix the placement rack. When the cabinet door is opened, the microswitch is deactivated, PA0 detects a low level, PA1 outputs a low level, the transistor is cut off, the relay coil is de-energized and releases, the contacts open, the electromagnet is de-energized, and the placement rack can be easily pulled.

[0025] When collecting blood collection tubes, this application involves opening the box door 101 and manually rotating one layer of the rotating blood collection tube holder outwards, allowing the holder to extend beyond the box body 100. After blood collection, the labeled blood collection tubes are placed sequentially into the holder, secured by the tube clamp structure 200. When no blood collection tubes are placed in the tube clamp structure 200, the metal spring 201 protrudes outwards relative to the crossbar 104, and the right gripper 202 and left gripper 203 on both sides of the metal spring 201 separate. After blood collection, the labeled blood collection tube is placed into the metal spring 201, causing the blood collection tube to press inwards against the metal spring 201, triggering the metal spring 201 to retract and adhere to the return groove 110, causing the right gripper 202 and left gripper 203 to close. The right gripper 202 and left gripper 203 encircle the blood collection tube, thus collecting the blood. The tube is fixed in place, and the bottom end of the blood collection tube is placed in the placement slot 107 on the placement rack 106. When one layer of the placement rack is full, it is manually pushed back into the box 100. The crossbar 104 and the end of the placement rack 106 away from the support shaft 102 are fixedly installed with a first magnetic block 108 and a second magnetic block 111. An electromagnet 109 is installed on one side of the box 100 corresponding to the first magnetic block 108 and the second magnetic block 111. A slot is opened in the box 100 at the position corresponding to the installation of the first magnetic block 108 and the second magnetic block 111. The first magnetic block 108 and the second magnetic block 111 can be inserted into the slot for limitation. The inner wall of the slot is provided with a silicone damping strip. When the magnetic block is inserted, a damping force is generated to prevent the magnetic block from slipping out, so that the placement rack is stable in the box 100. After completion, the box door 101 is closed. When the box door 101 is closed, a microswitch is triggered, and the main control board energizes the electromagnet 109, generating an electromagnetic attraction. This electromagnetic attraction, combined with the permanent magnet attraction of the first magnetic block 108 and the second magnetic block 111, results in a greater total attraction force, firmly securing the rack. When the box door 101 is opened, the microswitch is deactivated, and the electromagnet 109 is de-energized. The operator can then easily pull out the first magnetic block 108 and the second magnetic block 111 by applying a pulling force, allowing for easy one-handed operation. For testing, the blood collection tube needs to be removed. Holding the blood collection tube, pulling it outwards compresses the right gripper 202 and the left gripper 203. The right gripper 202 and the left gripper 203 open under pressure, simultaneously triggering the metal spring 201 to rebound away from the spring groove 110 and protrude outwards relative to the crossbar 104, returning to an unclamped state.

[0026] This application is user-friendly. A rotating blood collection tube holder is installed in the housing 100, facilitating the placement and retrieval of blood collection tubes. A tube clamp structure 200 is also included; the opening and closing of the clamp is triggered by the rebound and contraction of a metal spring 201. The ingenious design makes it easy to use. In terms of sample management, the rotating blood collection tube holder, through the cooperation of a support shaft and a rotating bearing, allows a single-layer holder to rotate independently out of the housing, avoiding interference from multiple operations and significantly improving sample storage and retrieval efficiency. The tube clamp structure uses an arc-shaped metal spring and staggered teeth design. When a blood collection tube is inserted, the deformation of the spring triggers the automatic closure of the clamp. Combined with the positioning support of the bottom placement slot, a dual fixing structure of "upper clamping and lower positioning" is formed, ensuring stable and reliable transport of blood collection tubes of different sizes. In terms of intelligent control, the microswitch inside the cabinet door is linked with the main control board and the electromagnet. When the cabinet door is closed, the electromagnet is automatically powered on, and the shelf is securely locked by the superposition of electromagnetic attraction and permanent magnet force. When the cabinet door is opened, the electromagnet is automatically powered off, allowing the shelf to be easily pulled out without manual operation, avoiding human error and reducing energy consumption. In terms of structural design, the silicone damping strip on the inner wall of the slot and the insulating anti-slip layer on the surface of the electromagnet reduce rigid contact and wear, improving the stability and service life of the device. The circuit system adopts a strong and weak current separation layout and anti-interference measures to ensure stable transmission of control signals and adapt to the complex electromagnetic interference scenarios in the medical environment.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An endocrinology fluid sample delivery device, comprising a housing (100), a door (101) installed on one side of the housing (100), a rotary blood collection tube holder installed inside the housing (100), the blood collection tube holder comprising a vertical support shaft (102) fixedly installed on one side of the inside of the housing (100), a plurality of rotary bearings (103) sleeved on the support shaft (102), a crossbar (104) fixedly installed on the outside of each rotary bearing (103), vertical rods (105) fixedly installed at both ends of the crossbar (104), and a placement rack (106) fixedly connected to the bottom of the two vertical rods (105), characterized in that, The placement rack (106) has several placement slots (107) evenly spaced on it. A first magnetic block (108) is fixedly installed at the end of the crossbar (104) away from the support shaft (102). A slot is provided in the box (100) corresponding to the position where the first magnetic block (108) is installed. The first magnetic block (108) can be locked into the slot for a limited position. A second magnetic block (111) is fixedly installed at the end of the placement rack (106) away from the support shaft (102). A slot is provided in the box (100) corresponding to the position where the second magnetic block (111) is installed. The second magnetic block (111) can be locked into the slot for a limited position. The slots corresponding to the first magnetic block (108) and the second magnetic block (111) are... The inner walls are all equipped with silicone damping strips. An electromagnet (109) is installed on one side of the box (100) corresponding to the first magnetic block (108) and the second magnetic block (111). When the electromagnet (109) is energized, it generates an electromagnetic attraction force on the first magnetic block (108) and the second magnetic block (111). A main control board is installed inside the box (100). The electromagnet (109) is electrically connected to the main control board. A micro switch is provided on the inside of the box door (101). The micro switch is electrically connected to the main control board. The main control board is triggered by the micro switch on the inside of the box door (101). When the box door (101) is closed, the micro switch is turned on, and the main control board sends an energizing signal to the electromagnet (109). The power is automatically cut off when the box door (101) is opened.

2. The endocrinology body fluid sample delivery device according to claim 1, wherein The circuit consists of a power supply module, a main control board, a relay module, an electromagnet (109), and a micro switch. The main control board includes a control chip. The input pin of the control chip is electrically connected to the micro switch, and the output pin of the control chip is electrically connected to the relay module. The relay module includes a relay drive circuit and a relay. The relay drive circuit uses a transistor to drive the relay coil. The base of the transistor is electrically connected to the output pin of the control chip, the emitter of the transistor is grounded, and the collector of the transistor is electrically connected to one end of the relay coil. The other end of the relay coil is connected in parallel with a diode and electrically connected to the power supply module. The relay contacts are connected in series in the power supply circuit of the electromagnet (109).

3. The endocrinology body fluid sample delivery device according to claim 1, wherein The crossbar (104) is provided with several tube clamp structures (200) at equal intervals. The position of the tube clamp structure (200) corresponds to the placement groove (107). The tube clamp structure (200) includes an arc-shaped metal spring (201). The metal spring (201) is provided with gripping clips on both sides. The blood collection tube is fixed and taken out by opening and closing the gripping clips.

4. The endocrinology body fluid sample delivery device according to claim 3, wherein The metal spring (201) has spring fixing straps (204) on both sides. The spring fixing straps (204) are fixed to the corresponding positions of the crossbar (104) by fixing bolts (205). The metal spring (201) has gripping clips on both sides.

5. The endocrinology body fluid sample delivery device according to claim 4, wherein The metal spring clip (201) has grippers on both sides, including a right gripper (202) and a left gripper (203). Both the right gripper (202) and the left gripper (203) are provided with locking teeth, and the locking teeth of the right gripper (202) and the left gripper (203) are interlocked.

6. The endocrinology body fluid sample delivery device according to claim 5, wherein The horizontal rod (104) is provided with a rebound groove (110) corresponding to the position of the metal spring (201).