Hemolymph collecting device for bivalve mollusks

Abstract

The invention belongs to the technical field of shellfish hemolymph collection, and discloses a bivalve shellfish hemolymph collection device. The device comprises a fixing device and a collecting device, the fixing device is composed of a base, a supporting rod, an operating rod, a control handle, a threaded rod, a moving block and a tool bit, shellfish organisms can be effectively fixed and opened, hemolymph can be conveniently collected, the collecting device comprises a vacuum tube and a bidirectional needle head, and the collecting device automatically extracts the hemolymph according to the vacuum negative pressure principle. The shellfish collecting device is simple in structure and convenient to operate, manual operation is not needed, the collecting efficiency and convenience are improved, the problems that in the prior art, shellfishes are fixed unstably, and operation is inconvenient are solved, and the device is simple in structure, convenient to operate, capable of effectively avoiding sample pollution and high in practicability and popularization value. The device is suitable for shellfish hemolymph sampling.

Description

Technical Field

[0001] The present invention relates to the technical field of shellfish hemolymph collection, and particularly to a double-shelled shellfish hemolymph collection device. Background Art

[0002] The collection of shellfish hemolymph plays an important role in scientific research, environmental monitoring, and aquaculture management. Hemolymph can reflect the immune status and health of shellfish and can help detect pathogens or diseases; by analyzing toxins or pollutants in hemolymph, the impact of environmental toxins on shellfish can be evaluated; as an environmental indicator organism, the pollutant content in the hemolymph of shellfish can reflect water quality and environmental pollution; therefore, the collection of shellfish hemolymph is an important link.

[0003] However, in existing shellfish hemolymph collection devices, some devices lack a device for fixing shellfish organisms, resulting in the easy slipping of shellfish organisms during the hemolymph collection process, thus affecting the collection of shellfish hemolymph. Some devices use syringes to suck hemolymph, which requires manual suction of hemolymph, and the operation process is not convenient, especially when carried out in the wild or on-site. Summary of the Invention

[0004] The present invention aims to provide a double-shelled shellfish hemolymph collection device to solve the problems of the inability to fix shellfish and inconvenient operation in existing technology devices.

[0005] To achieve the above object, the present invention provides the following technical solution:

[0006] A double-shelled shellfish hemolymph collection device includes a fixing device and a collection device. The fixing device includes a base. A groove is provided at the top of the base for placing shellfish organisms. A support rod is connected to the top of the base. The support rod is rotatably connected to an operating rod. A control handle is provided at the tail end of the operating rod. The control handle is fixedly connected to a threaded rod. The threaded rod is located inside the operating rod. One end of the threaded rod is fixedly connected to the control handle, and the other end is rotatably connected inside the operating rod. The threaded rod is threadedly connected to a moving block. A sliding groove is provided on the lower side of the operating rod. The moving block is slidably connected in the sliding groove. The moving block is connected to a cutter head. The collection device includes a vacuum tube and a double-headed needle. The inside of the vacuum tube is in a vacuum state. The vacuum tube is provided with a sealing rubber plug. The two ends of the double-headed needle are interconnected.

[0007] Further, the support rod is rotatably connected to the operating rod through a damping shaft.

[0008] Further, a placement groove is provided at the top of the base. A cover plate is slidably connected to the placement groove. The placement groove is used for storing the collection device.

[0009] Further, the cutter head is of a conical structure.

[0010] Further, the moving block is detachably connected to the cutter head.

[0011] Principle and beneficial effects of the technical solution: In the present invention, the fixing device can fix the shellfish while opening it. By placing the shellfish in the groove, the shellfish can be restricted. The cutter head can be stuck between the shells of the shellfish to open it, which is convenient for hemolymph sampling. At the same time, the position of the cutter head in the present invention can be adjusted by sliding left and right. By rotating the control handle, the control handle drives the threaded rod to rotate, and the rotation of the threaded rod enables the cutter head to move left and right, so as to restrict and fix different types and sizes of shellfish, ensuring the stability during the collection process. The present invention uses the cooperation of a vacuum tube and a double-headed needle for hemolymph collection, and its principle is the same as that of a vacuum blood collection tube. Through the vacuum state inside the vacuum tube, a negative pressure is formed with the outside, so that the hemolymph is sucked into the vacuum tube through the double-headed needle. This sampling method does not require artificial extraction by a syringe, which can effectively reduce the labor intensity, be more convenient and fast. At the same time, the collected hemolymph can be directly placed in the vacuum tube without the need to transfer it to other containers, which can effectively avoid contamination during the transfer process. Description of the Drawings

[0012] Figure 1 is the structural diagram of the present invention;

[0013] Figure 2 is the structural diagram inside the operating rod of the present invention;

[0014] The names of the corresponding marks in the drawings are: fixing device 1, collection device 2, base 3, operating rod 4, vacuum tube 21, double-headed needle 22, sealing rubber plug 23, groove 31, support rod 32, placement groove 33, cover plate 34, control handle 41, threaded rod 42, moving block 43, sliding groove 44, cutter head 45. Detailed Embodiments

[0015] The present invention will be further described in detail below with reference to the drawings and embodiments:

[0016] As Figure 1 - Figure 2As shown in the figure, a hemolymph collection device 2 for bivalve mollusks includes a fixing device 1 and a collection device 2. The fixing device 1 includes a base 3. A groove 31 is provided at the top of the base 3, and the groove 31 is used to place bivalve mollusks. A support rod 32 is fixedly connected to the left side of the groove 31. An operating rod 4 is rotatably connected to the support rod 32 through a damping shaft. A control handle 41 is provided at the rightmost end of the operating rod 4. A threaded rod 42 is fixedly connected to the left end of the control handle 41. The threaded rod 42 penetrates into the interior of the operating rod 4. The left end of the threaded rod 42 is rotatably connected inside the operating rod 4, and the right end of the threaded rod 42 is fixedly connected to the left end of the control handle 41. A moving block 43 is threadedly connected to the threaded rod 42. A chute 44 is provided on the lower side of the operating rod 4, and the moving block 43 is slidably connected inside the chute 44. A cutter head 45 is detachably connected to the lower side of the moving block 43. The cutter head 45 is of a conical structure. A placement groove 33 is opened on the left side of the top of the base 3. A cover plate 34 is slidably connected to the top of the placement groove 33, and the collection device 2 is placed in the placement groove 33; the collection device 2 includes a vacuum tube 21 and a two-way needle 22. The interior of the vacuum tube 21 is in a vacuum state. The vacuum tube 21 is provided with a sealing rubber plug 23, and the sealing rubber plug 23 makes the vacuum tube 21 not communicate with the outside when the two-way needle 22 is not inserted into the interior of the vacuum tube 21. The two ends of the two-way needle 22 communicate with each other.

[0017] The specific implementation process is as follows: First, place a single bivalve mollusk inside the groove 31 with its shell opening facing upward. Then rotate the control handle 41. The control handle 41 drives the threaded rod 42 to rotate. The rotation of the threaded rod 42 causes the moving block 43 to move left or right. The moving direction of the moving block 43 is determined by the rotation direction of the control handle 41. Adjust until the cutter head 45 can be clamped into the shell opening of the bivalve mollusk. Then press down the operating rod 4 through the control handle 41 so that the cutter head 45 opens the shell of the bivalve mollusk, and the shell of the bivalve mollusk is in an open state; then insert one end of the two-way needle 22 into the adductor muscle of the bivalve mollusk, and the other end penetrates through the sealing rubber plug 23 so that the interior of the vacuum tube 21 communicates with the two-way needle 22. Under the action of vacuum negative pressure, the hemolymph in the adductor muscle will automatically flow into the vacuum tube 21, thus completing the collection of hemolymph.

[0018] The above are only embodiments of the present invention. Specific technical solutions or common knowledge such as well-known characteristics are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. A bivalve mollusc hemolymph collection device, characterized in that: The invention comprises a fixing device (1) and a collecting device (2), wherein the fixing device (1) comprises a base (3), the top of the base (3) is provided with a groove (31), the groove (31) is used to place shellfish, the top of the base (3) is connected with a support rod (32), the support rod (32) is rotatably connected with an operating rod (4), the tail end of the operating rod (4) is provided with a control handle (41), the control handle (41) is fixedly connected with a threaded rod (42), the threaded rod (42) is located inside the operating rod (4), one end of the threaded rod (42) is connected with the control handle The hand (41) is fixedly connected, and the other end is rotatably connected to the inside of the operating rod (4); the threaded rod (42) is threadedly connected to a moving block (43); a slide groove (44) is provided on the lower side of the operating rod (4); the moving block (43) is slidably connected in the slide groove (44); the moving block (43) is connected to a cutter head (45); the collecting device (2) comprises a vacuum tube (21) and a bidirectional needle (22); the inside of the vacuum tube (21) is in a vacuum state; the vacuum tube (21) is provided with a sealing rubber plug (23); and the two ends of the bidirectional needle (22) are connected to each other.

2. A bivalve mollusc hemolymph collection device according to claim 1, characterized in that: The support rod (32) is rotationally connected to the operating rod (4) via a damping shaft.

3. The bivalve mollusc hemolymph collection device according to claim 1, characterized in that: The top of the base (3) is provided with a placement groove (33), a cover plate (34) is slidably connected to the placement groove (33), and the placement groove (33) is used to store the collection device (2).

4. The bivalve mollusc hemolymph collection device according to claim 1, characterized in that: The cutter head (45) is a conical structure.

5. The bivalve mollusc hemolymph collection device according to claim 1, characterized in that: The moving block (43) is detachably connected to the cutter head (45).

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