Hirudin extraction device convenient to clean
By designing a split-type hirudin extraction device, which utilizes temperature control and light stimulation to stimulate leech secretion, combined with stainless steel screen separation, the problem of difficult cleaning of live leeches has been solved, enabling convenient separation and reuse of live leeches.
Patent Information
- Application Number
- CN202520208555.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-10
AI Technical Summary
In the current process of hirudin extraction, live leeches are difficult to clean and are prone to death, resulting in significant resource losses.
Design an easy-to-clean hirudin extraction device, which adopts a split collection box, separation frame and box cover structure, combined with PLC controller, electric heating plate, warm white light lamp, ultraviolet induction lamp and spray pipe, stimulates leech secretion through temperature control and light, and uses stainless steel screen to separate live leeches from secretions.
This method enables convenient separation of live leeches from their secretions, facilitating subsequent cultivation and reuse, simplifying the cleaning process, and reducing leech loss.
Smart Images

Figure CN223818222U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hirudin extraction technology, specifically to a hirudin extraction device that is easy to clean. Background Technology
[0002] Hirudin, mainly extracted and purified from the saliva of blood-sucking leeches, is a polypeptide substance with anticoagulant and antithrombotic effects. Clinically, it is often used to treat multiple thrombotic diseases. It can eliminate vascular obstruction, disaggregate blood cells, dissolve thrombi, promote microvascular recanalization, and improve microcirculation. Currently, it is often used to regulate blood lipids, eliminate fatty liver, directly dissolve thrombi, eliminate atherosclerosis, prevent stroke and recurrent stroke, activate the body's own thrombolytic function, and avoid the recurrence of thrombolysis.
[0003] The current method of extracting hirudin involves using live leeches to induce vomiting. The process is as follows: First, an induction solution is prepared and used to saturate starved leeches. Then, the leeches that have consumed the induction solution are collected in a container such as a basin or bucket. A certain amount of a pre-prepared emetic is added to the bucket to induce vomiting. At this time, the leeches will be stimulated to expel saliva and the induction solution they have just ingested. The collected product is the crude hirudin.
[0004] However, the above-mentioned method of inducing vomiting makes it difficult and time-consuming to remove the leeches from the vomiting bucket for cleaning. Furthermore, if the leeches are soaked in the vomiting solution for too long, a large number of leeches will die after vomiting, resulting in huge losses. Utility Model Content
[0005] This invention provides a hirudin extraction device that is easy to clean, in order to solve the problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a hirudin extraction device that is easy to clean, comprising a collection box, a separation frame, and a box cover. The bottom end of the separation frame is provided with a first U-shaped retaining edge, which is engaged with the collection box. A stainless steel screen is installed inside the separation frame. The bottom end of the box cover is provided with a second U-shaped retaining edge, which is engaged with the separation frame. A PLC controller is embedded in the top of the box cover. An electric heating plate, a warm white light lamp, an ultraviolet induction lamp, a temperature sensor, and a spray pipe are respectively installed inside the box cover. The electric heating plate, the warm white light lamp, the ultraviolet induction lamp, and the temperature sensor are all electrically connected to the PLC controller.
[0007] Furthermore, the collection box has ear slots on both sides, and the ear slots are hinged to handles by pins.
[0008] Furthermore, a pad is provided inside the separation frame, and the stainless steel screen is fixed on the pad.
[0009] Furthermore, the top of the box cover is provided with an assembly cavity, in which the PLC controller is installed.
[0010] Furthermore, the spray pipes are arranged in a ring shape, with their nozzles facing downwards.
[0011] Furthermore, the inlet end of the spray pipe extends outward from the box cover and is equipped with a quick connector.
[0012] Compared with the prior art, this utility model provides a hirudin extraction device that is easy to clean, and has the following beneficial effects:
[0013] This easy-to-clean hirudin extraction device places live leeches on a stainless steel screen, heats the chamber with an electric heating plate to maintain a suitable temperature, and sprays an inducer onto the leeches' bodies through a spray pipe under ultraviolet light. The device also uses a warm white light flashing on and off to stimulate the leeches to secrete fluid, which falls through the screen into the collection box. The separate design of the collection box, separation frame, and lid facilitates the separation of live leeches from their secretions, while also allowing for easy cleaning of the live leeches. This facilitates subsequent cultivation and reuse, and the device is simple to operate. Attached Figure Description
[0014] Fig. 1 This is a schematic diagram of the structure of this utility model;
[0015] Fig. 2 This is a cross-sectional view of the present invention;
[0016] Fig. 3 This is a side view of the present invention.
[0017] In the diagram: 1. Collection box; 11. Ear slot; 12. Handle; 2. Separation frame; 21. First loop-shaped retaining edge; 22. Stainless steel screen; 23. Pad block; 3. Box cover; 31. Second loop-shaped retaining edge; 32. Assembly cavity; 4. PLC controller; 5. Electric heating plate; 6. Warm white light lamp; 7. Ultraviolet induction lamp; 8. Temperature sensor; 9. Spray pipe; 91. Quick connector. Detailed Implementation
[0018] 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.
[0019] Please see Figs. 1-3This utility model discloses a leech extractor that is easy to clean, comprising a collection box 1, a separation frame 2, and a box cover 3. The bottom end of the separation frame 2 is provided with a first loop-shaped retaining edge 21, which is engaged with the collection box 1. A stainless steel screen 22 is installed inside the separation frame 2. The bottom end of the box cover 3 is provided with a second loop-shaped retaining edge 31, which is engaged with the separation frame 2. A PLC controller 4 is embedded in the top of the box cover 3. An electric heating plate 5, a warm white light lamp 6, an ultraviolet induction lamp 7, a temperature sensor 8, and a spray pipe 9 are respectively installed inside the box cover 3. Live leeches are placed in the stainless steel screen 22. On the steel screen 22, the electric heating plate 5 heats up to maintain the ambient temperature inside the chamber within a suitable range. Under the irradiation of the ultraviolet induction lamp 7, an inducing agent is sprayed onto the surface of the leeches through the spray pipe 9, and the leeches are stimulated to secrete secretions by using a warm white light that flashes on and off. The secretions fall through the screen into the collection box 1. Since the collection box 1, the separation frame 2, and the box cover 3 adopt a split design, it is convenient to separate the live leeches from the secretions, and it is also convenient to clean the live leeches, which is beneficial for subsequent cultivation and reuse. The operation is simple. The electric heating plate 5, the warm white light 6, the ultraviolet induction lamp 7, and the temperature sensor 8 are all electrically connected to the PLC controller 4.
[0020] Specifically, the collection box 1 has ear slots 11 on both sides, and the ear slots 11 are hinged to handles 12 by pins.
[0021] In this embodiment, the ear groove 11 is a connecting structure used for the installation of the handle 12, which is designed to facilitate the handling of the collection box 1.
[0022] Specifically, the separation frame 2 is provided with a pad 23, and the stainless steel screen 22 is fixed on the pad 23.
[0023] In this embodiment, the pad 23 is a support structure used for the installation and fixing of the stainless steel screen 22.
[0024] Specifically, the top of the box cover 3 is provided with an assembly cavity 32, and the PLC controller 4 is installed in the assembly cavity 32.
[0025] In this embodiment, the assembly cavity 32 is an assembly structure used for the installation and fixation of the PLC controller 4. The PLC controller 4 is a digital computing and operating electronic system designed specifically for industrial environments. It uses a programmable memory to perform logical operations, sequential control, timing, counting, and arithmetic operations, and controls various types of mechanical equipment or production processes through digital or analog inputs and outputs.
[0026] Specifically, the spray pipe 9 is arranged in a ring shape, and its spray head faces downward.
[0027] In this embodiment, an inducer (prepared by dissolving two or more of the following substances, namely sodium chloride, water, acetylcysteine hydrochloride, lysine, neutral protease, and papain, in deionized water) is sprayed onto the surface of the leech through the spray pipe 9, thereby stimulating the live leech.
[0028] Specifically, the inlet end of the spray pipe 9 extends outward from the box cover 3, and a quick connector 91 is installed on it.
[0029] In this embodiment, quick connector 91 is a connector that can connect or disconnect pipelines without tools, enabling quick and convenient connection and disconnection of pipelines in various applications, greatly improving work efficiency.
[0030] In use, live leeches are starved to increase the content of their secretions. The live leeches are placed on a stainless steel screen 22, and an electric heating plate 5 is used to heat the environment, maintaining the temperature between 23 and 40°C. Under ultraviolet light with a wavelength of 200nm to 275nm, an inducer is sprayed onto the surface of the leeches through a spray pipe 9. The ultraviolet light irradiation time is 30 to 180 seconds. Then the ultraviolet light is turned off, and the leeches are irradiated with a warm white light that flashes on and off for 3 to 15 minutes to stimulate the leeches to secrete secretions. The secretions fall through the screen into the collection box 1 for collection. The secretions are then removed for further separation and purification to obtain natural hirudin. Because the collection box 1, separation frame 2, and box cover 3 adopt a split design, it is convenient to separate the live leeches from the secretions and to clean the live leeches easily, which is beneficial for subsequent cultivation and reuse.
[0031] In summary, this easy-to-clean hirudin extraction device places live leeches on a stainless steel screen 22, heats the chamber with an electric heating plate 5 to maintain a suitable temperature, and sprays an inducer onto the leech's body surface through a spray pipe 9 under the illumination of an ultraviolet induction lamp 7. The device also uses a warm white light flashing to stimulate the leeches to secrete fluid, which falls through the screen into the collection box 1. Because the collection box 1, separation frame 2, and lid 3 are designed as separate units, it facilitates the separation of live leeches from their secretions while also allowing for easy cleaning of the live leeches, which is beneficial for subsequent cultivation and reuse. The device is simple to operate.
[0032] 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. A hirudin extraction device that is easy to clean, comprising a collection box (1), a separation frame (2), and a box cover (3), characterized in that: The bottom end of the separation frame (2) is provided with a first loop-shaped clamping edge (21), and is clamped to the collection box (1) through the first loop-shaped clamping edge (21). A stainless steel screen (22) is installed inside the separation frame (2). The bottom end of the box cover (3) is provided with a second loop-shaped clamping edge (31), and is clamped to the separation frame (2) through the second loop-shaped clamping edge (31). A PLC controller (4) is embedded in the top of the box cover (3). An electric heating plate (5), a warm white light lamp (6), an ultraviolet induction lamp (7), a temperature sensor (8), and a spray pipe (9) are respectively installed inside the box cover (3). The electric heating plate (5), the warm white light lamp (6), the ultraviolet induction lamp (7), and the temperature sensor (8) are all electrically connected to the PLC controller (4).
2. The hirudin extraction device for easy cleaning according to claim 1, characterized in that: The collection box (1) is provided with ear slots (11) on both sides, and the ear slots (11) are hinged with handles (12) by pins.
3. The hirudin extraction device for easy cleaning according to claim 1, characterized in that: The separation frame (2) is provided with a pad (23), and the stainless steel screen (22) is fixed on the pad (23).
4. The hirudin extraction device for easy cleaning according to claim 1, characterized in that: The top of the box cover (3) is provided with an assembly cavity (32), and the PLC controller (4) is installed in the assembly cavity (32).
5. The hirudin extraction device for easy cleaning according to claim 1, characterized in that: The spray pipe (9) is arranged in a ring shape with its nozzle facing downwards.
6. The hirudin extraction device for easy cleaning according to claim 1, characterized in that: The inlet end of the spray pipe (9) extends outward from the box cover (3) and is equipped with a quick connector (91).