CN216172436U

CN216172436U - Extraction device of tissue stem cells

Info

Publication number: CN216172436U
Application number: CN202122555253.3U
Authority: CN
Inventors: 叶翠; 高志; 万文昊
Original assignee: Chengdu Gaocuiyinhe Biotechnology Co ltd
Current assignee: Chengdu Gaocuiyinhe Biotechnology Co ltd
Priority date: 2021-10-23
Filing date: 2021-10-23
Publication date: 2022-04-05
Anticipated expiration: 2031-10-23

Abstract

The utility model discloses a tissue stem cell extraction device, relates to the technical field of pipettors, and comprises a control button, a shell is arranged at the lower end of the control button, a gun head dismounting button is connected in front of the control button at the upper end of the shell in a sliding manner, the front end of the shell is provided with a volume display port, the lower end of the shell is fixed with a sleeve, the lower end of the sleeve is sleeved with an elastic suction nozzle, the lower end of the elastic suction nozzle is provided with a gun head, a one-way device is arranged between the elastic suction nozzle and the gun head, the utility model provides the one-way device, through the one-way device added between the elastic suction nozzle and the gun head, the control button can be released in advance when the extraction device needs to extrude liquid into the rest of liquid, and the suction of external liquid can be avoided through the one-way device, so that the proportion of the configured liquid solution is correct, and the experiment can be normally carried out.

Description

Extraction device of tissue stem cells

Technical Field

The utility model relates to the technical field of pipettors, in particular to a tissue stem cell extraction device.

Background

The pipettor is also called a pipette gun, and is a device for quantitatively transferring liquid, and when the research on the aspect of analysis and test is carried out, the pipettor is generally used for transferring a small amount of or trace liquid, and the pipettor can be divided into a gas piston type pipettor and an external piston type pipettor according to the principle, wherein the gas piston type pipettor is mainly used for standard pipetting, and the external piston type pipettor is mainly used for treating special liquids such as volatile liquid, easy corrosion and viscous liquid.

When the existing pipettor is used, other external liquid can be sucked by loosening the control button when the pipettor extrudes the liquid in the pipettor, so that the proportion of mixed liquid is wrong, and the normal operation of an experiment is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a tissue stem cell extraction device, which solves the technical problem that when a liquid transfer device extrudes internal liquid, a control button is loosened to suck part of other liquid, so that the liquid mixing proportion is wrong.

In order to solve the technical problems, the tissue stem cell extraction device provided by the utility model comprises a control button, wherein a shell is arranged at the lower end of the control button, a gun head dismounting button is connected to the upper end of the shell in a sliding manner in front of the control button, a volume display port is arranged at the front end of the shell, a sleeve is fixed at the lower end of the shell, an elastic suction nozzle is sleeved at the lower end of the sleeve, a gun head is arranged at the lower end of the elastic suction nozzle, and a one-way device is arranged between the elastic suction nozzle and the gun head;

the one-way device comprises an outer ring, a positioning plate is arranged on the inner surface of the outer ring, a spring is fixed at the upper end of the positioning plate, a blocking plate is fixed at the upper end of the spring, a connecting ring is arranged above the blocking plate, and a rotating ring is fixed on the outer surface of the connecting ring.

Preferably, the upper end and the lower end of the one-way device are respectively sleeved with the elastic suction nozzle and the gun head, and the lower end of the outer ring is provided with a transition ring.

Preferably, the inner surface of the outer ring is provided with threads, and the outer surface of the rotating ring is provided with threads and is screwed with the threads on the surface of the outer ring.

Preferably, the cross section of the plugging plate is in a shape like a Chinese character 'tu', and the inner surface profile of the connecting ring is attached to the middle end of the plugging plate.

Preferably, the surface of the positioning plate is provided with a notch, and the notch is annularly arranged around the center.

Preferably, the upper end of the rotating ring is provided with a wrapping ring, and the diameter of the outer surface of the wrapping ring is equal to that of the outer surface of the outer ring.

Preferably, the diameter of the inner surface of the lance head is equal to the diameter of the outer surface of the transition ring on the surface of the outer ring.

Compared with the related art, the extraction device of the tissue stem cells provided by the utility model has the following beneficial effects:

the utility model provides the one-way device, and the one-way device is additionally arranged between the elastic suction nozzle and the gun head, so that when the extraction device needs to extrude liquid into other liquid, the control button can be released in advance, and the suction of external liquid can be avoided through the one-way device, thereby ensuring the correct proportion of the prepared liquid solution and enabling the experiment to be normally carried out.

Drawings

FIG. 1 is a main body structure view of the present invention;

FIG. 2 is a partially enlarged structural view of the present invention;

FIG. 3 is a structural view of the check device of the present invention.

Reference numbers in the figures: 1. a control button; 2. a housing; 3. a volume display port; 4. a sleeve; 5. an elastic suction nozzle; 6. a gun head; 7. a one-way device; 8. a gun head dismounting button; 71. a rotating ring; 72. an outer ring; 73. positioning a plate; 74. a spring; 75. a blocking plate; 76. and (7) connecting rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the embodiment, as shown in fig. 1-3, the tissue stem cell extraction device comprises a control button 1, a housing 2 is arranged at the lower end of the control button 1, a gun head dismounting button 8 is connected in front of the control button 1 at the upper end of the housing 2 in a sliding manner, a volume display port 3 is arranged at the front end of the housing 2, a sleeve 4 is fixed at the lower end of the housing 2, an elastic suction nozzle 5 is sleeved at the lower end of the sleeve 4, a gun head 6 is arranged at the lower end of the elastic suction nozzle 5, and a one-way device 7 is arranged between the elastic suction nozzle 5 and the gun head 6;

the one-way device 7 comprises an outer ring 72, a positioning plate 73 is arranged on the inner surface of the outer ring 72, a spring 74 is fixed at the upper end of the positioning plate 73, a blocking plate 75 is fixed at the upper end of the spring 74, a connecting ring 76 is arranged above the blocking plate 75, and a rotating ring 71 is fixed on the outer surface of the connecting ring 76.

The working principle is as follows:

the hand is held on the surface of the shell 2, the control button 1 is pressed, the control button 1 moves downwards to extrude the air in the sleeve 4, the elastic suction nozzle 5, the gun head 6 and the one-way device 7, then the gun head 6 is placed in the external solution, the negative air pressure in the extraction device sucks the liquid by loosening the control button 1, when the liquid needs to be injected into other liquid, the rotating ring 71 is rotated to avoid sucking other liquid, the rotating ring 71 rotates to move downwards relative to the outer ring 72 through the threads on the surface, the blocking plate 75 is attached to the connecting ring 76, at the moment, the liquid moving downwards from the elastic suction nozzle 5 can press the blocking plate 75 downwards, the blocking plate 75 moves downwards to press the spring 74 to deform, when the surface pressure of the blocking plate 75 disappears after the injection is stopped, the spring 74 deforms and returns, the liquid in the gun head 6 can not enter the elastic suction nozzle 5 through the one-way device 7, thereby avoiding sucking external liquid and ensuring the smooth operation of the experiment.

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

Claims

1. The tissue stem cell extraction device comprises a control button (1), wherein a shell (2) is arranged at the lower end of the control button (1), a gun head dismounting button (8) is connected to the upper end of the shell (2) in front of the control button (1) in a sliding manner, a volume display port (3) is arranged at the front end of the shell (2), a sleeve (4) is fixed at the lower end of the shell (2), an elastic suction nozzle (5) is sleeved at the lower end of the sleeve (4), and a gun head (6) is arranged at the lower end of the elastic suction nozzle (5), and is characterized in that a one-way device (7) is arranged between the elastic suction nozzle (5) and the gun head (6);

one-way device (7) includes outer lane (72), the internal surface of outer lane (72) is provided with locating plate (73), the upper end of locating plate (73) is fixed with spring (74), the upper end of spring (74) is fixed with jam plate (75), the top of jam plate (75) is provided with clamping ring (76), the external fixed surface of clamping ring (76) has rotatory circle (71).

2. The tissue stem cell extraction device according to claim 1, wherein the upper end and the lower end of the one-way device (7) are respectively sleeved with the elastic suction nozzle (5) and the gun head (6), and the lower end of the outer ring (72) is provided with a transition ring.

3. The device for extracting tissue stem cells according to claim 2, wherein the inner surface of the outer ring (72) is provided with threads, and the outer surface of the rotating ring (71) is provided with threads and is screwed with the threads on the surface of the outer ring (72).

4. The device for extracting tissue stem cells according to claim 3, wherein the cross section of the blocking plate (75) is in a shape of a Chinese character 'tu', and the inner surface contour of the connecting ring (76) is fitted with the middle end of the blocking plate (75).

5. The device for extracting tissue stem cells as claimed in claim 1, wherein the surface of the positioning plate (73) is provided with a notch and the notch is annularly arranged around the center.

6. The device for extracting the tissue stem cells as claimed in claim 3, wherein the upper end of the rotating ring (71) is provided with a wrapping ring, and the diameter of the outer surface of the wrapping ring is equal to that of the outer surface of the outer ring (72).

7. The tissue stem cell extraction device according to claim 2, wherein the diameter of the inner surface of the gun head (6) is equal to the diameter of the outer surface of the transition ring on the surface of the outer ring (72).