CN203076052U - Enclosed tissue grinding rod device - Google Patents

Abstract

The utility model relates to a closed tissue grinding rod device, comprising a grinding head, a rod body and a centrifuge tube cover, the grinding head is connected to one end of the rod body, a spiral groove is arranged on the surface of the grinding head, and a gap, the rod body can pass through the gap, and the centrifuge tube cover can move freely on the rod body. The grinding head of the closed tissue grinding rod device of the utility model is provided with a spiral groove, which can speed up the exchange rate of the upper and lower liquids during the grinding process and improve the grinding efficiency; the centrifuge tube on the rod body of the closed tissue grinding rod device The cover can be covered on the centrifuge tube, and the further sealing of the sealing ring can effectively prevent the grinding liquid from splashing out, and at the same time ensure that the grinding head is located in the centrifuge tube, and the grinding rod will not be thrown out of the centrifuge tube; the closed tissue grinding rod device The structure is simple, the operation is convenient, the effect is obvious, and it is safe and practical, which can help experimenters to complete the tissue grinding work quickly, effectively and safely.

Description

Closed tissue grinding rod device

technical field

The utility model relates to the technical field of tissue grinding devices, in particular to a closed tissue grinding rod device.

Background technique

In biological experiment operations, in order to extract tissue RNA, DNA or protein, it is usually necessary to grind the tissue first to make a tissue homogenate. There are many types of known tissue grinders. In each tissue grinder, the grinding rod is an important component. The grinding rod is generally composed of a grinding head and a rod body. Through the high-speed rotation of the rod body, the grinding head is driven to rotate, and the reagent containing tissue in the centrifuge tube or other container is ground, and it is ground into a homogenate for the experiment. When using a centrifuge tube as a grinding container, the centrifuge tube is equivalent to a mortar, which is very practical for a small amount of tissue samples, and there is no need to transfer samples for subsequent centrifugation work, reducing sample loss, so only one grinding rod is needed to complete the grinding Work. However, common tissue grinding rods not only have low grinding efficiency, but also may cause tissue grinding liquid to splash out or throw the grinding rod out of the centrifuge tube due to the rotation. This will not only waste tissue samples, but also pose a threat to the safety and health of experimenters.

Utility model content

The purpose of the utility model is to provide a closed tissue grinding rod device for the deficiencies in the prior art. The device can accelerate the tissue grinding efficiency, and can also prevent the tissue grinding liquid from splashing out, and prevent the tissue grinding rod from being thrown out of the centrifuge tube.

In order to achieve the above object, the technical scheme that the utility model takes is:

A closed tissue grinding rod device, comprising a grinding head, a rod body and a centrifuge tube cover, the grinding head is connected to one end of the rod body, the surface of the grinding head is provided with a spiral groove, and the centrifuge tube The middle part of the cover is provided with a gap, the rod body can pass through the gap, and the centrifuge tube cover can move freely on the rod body.

The grinding head is conical, the cone base is connected to the rod body, and the cone top is hemispherical.

The surface of the grinding head is smooth.

A sealing ring is sheathed on the rod body, and the sealing ring is located on the top wall side of the centrifuge tube cover.

The utility model has the advantages that:

1. The grinding head of the closed tissue grinding rod device of the utility model is provided with a spiral groove, which can speed up the exchange rate of the upper and lower liquids during the grinding process and improve the grinding efficiency;

2. The centrifuge tube cover on the rod body of the closed tissue grinding rod device can be covered on the centrifuge tube, and the further sealing of the sealing ring can effectively prevent the grinding liquid from splashing out, and at the same time ensure that the grinding head is located in the centrifuge tube, and the grinding rod does not will be thrown out of the centrifuge tube;

3. The closed tissue grinding rod device has the advantages of simple structure, convenient operation, obvious effect, safety and practicality, and can help experimenters to complete the tissue grinding work quickly, effectively and safely.

Description of drawings

Accompanying drawing 1 is the structure diagram of the closed tissue grinding rod device of the present utility model.

Accompanying drawing 2 is the left side view shown along A-A line among Fig. 1.

Accompanying drawing 3 is the schematic diagram of putting the closed tissue grinding rod device of the present invention into the centrifuge tube.

The reference signs and components involved in the accompanying drawings are as follows:

1. Grinding head 11. Spiral groove

2. Rod body 3. Centrifuge tube cover

31. Top wall 32. Side wall

33. Block 34. Gap

4. Sealing ring 5. Centrifuge tube

Detailed ways

Below in conjunction with embodiment and with reference to accompanying drawing, the utility model is further described.

Please refer to Fig. 1, Fig. 1 is a structural schematic diagram of the closed tissue grinding rod device of the present invention. The closed tissue grinding rod device comprises a grinding head 1 , a rod body 2 and a centrifuge tube cover 3 . The grinding head 1 is conical, the cone base is connected to one end of the rod body 2, and the cone top is hemispherical. The surface of the grinding head 1 is a smooth surface, and is provided with a spiral groove 11, and the spiral groove 11 rotates counterclockwise from the top of the cone to the base of the cone. The middle part of described centrifuge tube cover 3 is provided with breach 34, and the diameter of breach 34 is slightly larger than the diameter of rod body 2, and rod body 1 can pass through described breach 34, and centrifuge tube cover 3 can move freely on rod body 2, and rod body 2 It can also be rotated freely for grinding.

The rod body 2 is covered with a sealing ring 4, preferably a rubber sealing ring 4, which has elasticity. The diameter of the sealing ring 4 is slightly smaller than the diameter of the rod body 2, and cannot move freely after being set on the rod body 2. The sealing ring 4 is located on the side of the top wall 31 of the centrifuge tube cover 3 and can seal the annular space between the rod body 2 and the notch 34 .

Please refer to Fig. 2, Fig. 2 is the left side view shown along the A-A line in Fig. The outer diameter is consistent with the inner diameter of the centrifuge tube mouth used, and the rotation range of the rod body 2 is limited after the centrifuge tube cover 3 is covered, and the rod body 2 will not touch the centrifuge tube wall and the nozzle. When the centrifuge tube cover 3 is opened, the blocking plate 33 can prevent fingers from touching the abrasive liquid that may exist on the side wall 32 . There is an annular gap between the rod body 2 and the notch 34, which can ensure that the rod body 2 rotates arbitrarily. The annular gap can be covered by the sealing ring 4, which can prevent the grinding fluid from splashing out of the pipe.

It should be noted that the grinding head 1 and the rod body 2 are preferably integrally formed, and may also be connected in a later stage; the shape of the grinding head 1 matches the shape of the bottom of the centrifuge tube used, and when the bottom of the centrifuge tube is conical, the grinding head 1 is Conical, as the shape provided in this embodiment, when the bottom of the centrifuge tube is hemispherical, the grinding head 1 is a cylinder and the end away from the rod body 2 is hemispherical; the centrifuge tube cover 3 is suitable for covering on the centrifuge tube used.

Please refer to Fig. 3, Fig. 3 is a schematic diagram of putting the closed tissue grinding rod device of the present invention into the centrifuge tube. Before grinding, put the grinding head 1 of the tissue sample, reagent and grinding rod into the centrifuge tube 5, cover the centrifuge tube cover 3 from the upper end of the rod body 2 and cover the centrifuge tube cover 3 on the mouth of the centrifuge tube 5, then put The sealing ring 4 is sleeved on the rod body 2 and moved to the top of the centrifuge tube cover 3 for covering the annular space. After getting ready, the staff rotates the rod body 2 of the tissue grinding rod for grinding. After the grinding is finished, rinse the sample on the grinding head 1, and finally remove the tissue grinding rod device, cover the cap of the centrifuge tube 5 itself, and perform centrifugation without transferring the sample, reducing the loss of the tissue sample.

The grinding head of the closed tissue grinding rod device of the utility model is provided with a spiral groove, which can speed up the exchange rate of the upper and lower liquids during the grinding process and improve the grinding efficiency; the centrifuge tube on the rod body of the closed tissue grinding rod device The cover can be covered on the centrifuge tube, and the further sealing of the sealing ring can effectively prevent the grinding liquid from splashing out, and at the same time ensure that the grinding head is located in the centrifuge tube, and the grinding rod will not be thrown out of the centrifuge tube; the closed tissue grinding rod device The structure is simple, the operation is convenient, the effect is obvious, and it is safe and practical, which can help experimenters to complete the tissue grinding work quickly, effectively and safely.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and supplements can also be made, and these improvements and supplements are also It should be regarded as the protection scope of the present utility model.

Claims (4)

1. closed grinding rod device of organizing, comprise grinding head, the body of rod and centrifuge tube lid, described grinding head is connected an end of the described body of rod, it is characterized in that, described grinding head surface is provided with spiral groove, the middle part of described centrifuge tube lid is provided with breach, and the described body of rod can pass described breach, and the centrifuge tube lid can move freely on the body of rod.

2. the closed grinding rod device of organizing according to claim 1 is characterized in that described grinding head is coniform, awl base connecting-rod body, and the vertex of a cone is hemispherical.

3. the closed grinding rod device of organizing according to claim 1 is characterized in that the surface of described grinding head is a shiny surface.

4. the closed grinding rod device of organizing according to claim 1 is characterized in that, is with sealing ring on the described body of rod, and described sealing ring is positioned at roof one side of centrifuge tube lid.

Images