CN215087254U - Hollow side-opening pasteur straw - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, a fretwork side trompil pasteur straw is provided, including body and suction bulb, the body includes distal end and near-end, suction bulb integrated into one piece is in the near-end of body, the distal end tip of body is seal structure, is provided with a plurality of side openings on the distal end lateral wall of body. The utility model discloses a with the suction inlet improvement setting of traditional pasteur's straw at the lateral wall of body, alright guarantee that the suction that the pasteur's straw produced is in same horizontal plane with the cell layer, the accurate absorption cell layer of being convenient for avoids or reduces and inhales other liquid, sets up the fold texture through the inner wall at the suction bubble simultaneously, when the suction bubble recovers, through interact between fold texture crest and the trough to make the suction bubble slowly recover, imbibition speed obtains effective control.

Description

Hollow side-opening pasteur straw

Technical Field

The utility model relates to the technical field of medical equipment, particularly, relate to a fretwork side trompil pasteur straw.

Background

The pasteur pipette is a disposable consumable in a laboratory, and is widely applied to the fields of heredity, medicine, epidemic prevention, clinic, heredity, biochemistry, petrifaction, military affairs and the like.

As shown in fig. 1, which is a schematic diagram of the layering of blood and a lymphocyte separation fluid after centrifugation, it can be seen that the lymphocyte layer is located in the middle layer and is located at the interface where the plasma and the separation fluid intersect, and there are many cell types separated by using a similar method; as shown in fig. 2, a conventional pasteur pipette is commonly available in the market, and the suction port of the pasteur pipette is arranged at the bottom of the tube body, which has a problem: when the lymphocyte layer is sucked by the pasteur pipette, the suction port is arranged at the bottom of the tube body, so that the suction force generated by the pasteur pipette can not be in the same plane with the lymphocyte layer all the time, and other liquids except the lymphocyte layer are easy to suck.

Furthermore, the existing pasteur straws all have a problem: after the blister is pressed, the blister needs to be slowly released so as to realize slow imbibition, but the existing blister is difficult to control the release speed.

Therefore, how to solve the above problems becomes a focus of research by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fretwork side trompil pasteur straw to solve the not enough problem of prior art.

The embodiment of the utility model discloses a realize through following technical scheme:

the utility model provides a fretwork side trompil pasteur straw, includes body and suction bulb, the body includes distal end and near-end, suction bulb integrated into one piece is in the near-end of body, the distal end tip of body is seal structure, is provided with a plurality of side openings on the distal end lateral wall of body.

Further, the side opening is perpendicular to the central axis of the tube body.

Furthermore, the inner wall of the suction bubble is circumferentially provided with a fold texture, and the fold texture is composed of a plurality of wave crests and wave troughs which are alternately arranged.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

1. the utility model discloses a with the suction inlet improvement setting of traditional pasteur straw at the lateral wall of body, alright guarantee that the suction that the pasteur straw produced is in same horizontal plane with the cell layer, the accurate absorption cell layer of being convenient for avoids or reduces and inhales other liquid.

2. The utility model discloses an inner wall at the suction bubble sets up the fold texture, when the suction bubble is recovered, through interact between fold texture crest and the trough to make the suction bubble slowly recover, imbibition speed obtains effective control.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of the layering of a lymphocyte-containing separation liquid after mixing with blood and centrifugal separation;

FIG. 2 is a front cross-sectional view of a prior art conventional pasteur pipette;

FIG. 3 is a front view of a hollow pasteur straw with side holes provided in embodiment 1 of the present invention;

fig. 4 is a front cross-sectional view of a hollow-out side-holed pasteur pipette provided in embodiment 1 of the present invention.

Icon: 1-tube body, 2-suction bubble, 3-side opening and 4-fold texture.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of this application is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and be operated is not to be construed as limiting the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 3 to 4, this embodiment provides a hollow-out side-hole pasteur pipette, including body 1 and vacuole 2, the one end of definition body 1 is the near-end, and the other end is the distal end, vacuole 2 integrated into one piece is in the near-end of body 1, the distal end tip of body 1 is seal structure, is provided with a plurality of side openings 3 on the distal end lateral wall of body 1, and a plurality of side openings 3 are located same circumference, and side opening 3 is mutually perpendicular with the axis of body 1. The inner wall of the suction bubble 2 is circumferentially provided with a fold texture 4, and the fold texture 4 consists of a plurality of wave crests and wave troughs which are alternately arranged.

According to the above, the side opening 3 is arranged on the side wall of the tube body 1, when the lymphocyte layer is sucked, the side opening 3 and the lymphocyte layer are placed on the same horizontal plane, the generated suction force is horizontally sucked into the tube body 1 through the lymphocyte layer, the suction of other liquids can be effectively avoided or reduced, meanwhile, the fold textures 4 are arranged on the inner wall of the suction bubble 2 in the circumferential direction, after the suction bubble 2 is loosened, the suction bubble 2 recovers, the wave crests and the wave troughs of the fold textures 4 are utilized to extrude each other when being unfolded, the principle of mutual action is realized, the recovery expansion speed of the suction bubble 2 is delayed, the liquid suction speed is reduced, the phenomenon that the suction force is too large and the cell layer is mixed is avoided.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (3)

1. The utility model provides a porous pasteur's straw is taken to fretwork side, includes body (1) and vacuole (2), body (1) includes distal end and near-end, vacuole (2) integrated into one piece in the near-end of body (1), its characterized in that: the distal end tip of body (1) is seal structure, is provided with a plurality of side openings (3) on the distal end lateral wall of body (1).

2. The hollow side-aperture pasteur pipette of claim 1, wherein: the side opening (3) is vertical to the central axis of the tube body (1).

3. The hollow side-aperture pasteur pipette of claim 1, wherein: the inner wall of the suction bubble (2) is circumferentially provided with fold textures (4), and the fold textures (4) are composed of a plurality of wave crests and wave troughs which are alternately arranged.

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