CN208869593U - A kind of detachable transfer pipette for drawing umbilical cord tissue block - Google Patents

Abstract

The utility model relates to a kind of detachable transfer pipettes for drawing umbilical cord tissue block, including tube body, the bottom of the pipe is removably connected with up big and down small tapered tube head, extend the connecting section of insertion bottom of the pipe in the tapered tube head upper end, the bottom of the pipe is provided with internal thread part, and the external thread part with the cooperation of bottom of the pipe internal thread part is provided in the connecting section.The utility model draws the detachable transfer pipette structure novel of umbilical cord tissue block, easy to use, avoids due to not being available after the pipette that fractures manually and causes unnecessary waste, economize on resources, improves efficiency.

Description

A kind of detachable transfer pipette for drawing umbilical cord tissue block

Technical field

The utility model relates to a kind of detachable transfer pipettes for drawing umbilical cord tissue block.

Background technique

The culture of umbilical cord mesenchymal stem cells needs to separate huatong plastic tissue therein after fresh umbilical cord is removed blood vessel, Huatong plastic is shredded to size 1mm²Small tissue blocks after, be put into defined medium, be placed in 370C, cultivated under the conditions of 5% CO2, It is carried out after a couple of days change liquid and be further cultured for.It then needs to carry out secondary culture when cell heals to 80%, cell adherent life at this time It is long, the mixture of the tissue block and culture solution abandoned in culture bottle need to be inhaled, after with pancreatin carry out digestion process.

At present when inhaling the old tissue block of abandoning and culture solution, since disposable pipette lower end is pyramidal structure, lower end It is open smaller, the mixture of biggish tissue block and culture solution can not be drawn, it is therefore desirable to the conical head for the pipette that fractures manually Portion, but be difficult to grasp fracture position when the conical nose for the pipette that fractures manually, breaking part is not often located at conical head just With the junction of tube body, and it be easy to cause the plane of disruption uneven when fractureing manually, it is difficult to which aspirates tissue block and culture solution need to change It takes new pipette to fracture again, be easy to cause unnecessary waste.

Utility model content

In view of this, the purpose of the utility model is to provide a kind of structure novel, absorption umbilical cord tissue block easy to use Detachable transfer pipette.

The utility model is realized using following scheme: a kind of detachable transfer pipette for drawing umbilical cord tissue block, including pipe Body, the bottom of the pipe are removably connected with up big and down small tapered tube head, and insertion tube body is extended in the tapered tube head upper end The connecting section of lower end, the bottom of the pipe are provided with internal thread part, are provided in the connecting section and spiral shell in bottom of the pipe The external thread part of line portion cooperation.

Further, the tube body upper end is provided with the connector to be connected with suction assisting device, sets on the side wall of tube body It is equipped with scale；The tapered tube head upper end diameter is greater than connecting section outer diameter, is cased with sealing ring outside in the connecting section, described Sealing ring is sandwiched between bottom of the pipe face and tapered tube head upper surface.

Compared with prior art, the utility model has the following beneficial effects: the utility model draws umbilical cord tissue block Detachable transfer pipette structure novel, it is easy to use, avoid that cause due to not being available after the pipette that fractures manually need not The waste wanted, economizes on resources, and improves efficiency, and suction process is more succinct controllable.

For the purpose of this utility model, technical solution and advantage is more clearly understood, specific embodiment will be passed through below And relevant drawings, the utility model is described in further detail.

Detailed description of the invention

Fig. 1 is the utility model embodiment organigram；

Figure label explanation: 100- tube body, 110- connector, 120- scale, 200- tapered tube head, 210- connecting section, 220- sealing ring.

Specific embodiment

As shown in Figure 1, a kind of detachable transfer pipette for drawing umbilical cord tissue block, including tube body 100, the tube body 100 Lower end is removably connected with up big and down small tapered tube head 200, and 200 upper end of tapered tube head is extended under insertion tube body 100 The connecting section 210 at end, 100 lower end of tube body are provided with internal thread part, are provided in the connecting section and bottom of the pipe The external thread part of internal thread part cooperation；Pipette, using being threadedly coupled, is not necessarily at tube body and tapered tube head if drawing liquid Conical head is removed in rotation, is directly drawn with tube body after tapered tube head can be revolved if drawing big tissue block, which detachably sets Meter, it is easy to use, replace traditional violence to fracture, avoids the irregular situation of the plane of disruption and occur, save material, improve efficiency, Under the premise of not polluting, tapered tube head 200 is reusable, economizes on resources.

In the present embodiment, 100 upper end of tube body is provided with the connector 110 to be connected with suction assisting device, so as to It is used cooperatively in suction assisting device；Scale 120 is provided on the side wall of tube body；200 upper end diameter of tapered tube head is greater than connection 210 outer diameter of pipe portion, it is outer in the connecting section 210 to be cased with sealing ring 220, the sealing ring 220 be sandwiched in 100 lower end surface of tube body with Between 200 upper surface of tapered tube head, guarantees the leakproofness of tube body and tapered tube head connecting portion, avoid the appearance when drawing liquid Leakage.

Above-listed preferred embodiment has been further described the purpose of this utility model, technical solution and advantage, It should be understood that the above is only the preferred embodiment of the utility model only, it is not intended to limit the utility model, it is all Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in practical Within novel protection scope.

Claims (1)

1. a kind of detachable transfer pipette for drawing umbilical cord tissue block, it is characterised in that: including tube body, the bottom of the pipe is removable It unloads and is connected with up big and down small tapered tube head, the connecting section of insertion bottom of the pipe is extended in the tapered tube head upper end, described Bottom of the pipe is provided with internal thread part, and the external thread part with the cooperation of bottom of the pipe internal thread part is provided in the connecting section； The tube body upper end is provided with the connector to be connected with suction assisting device, is provided with scale on the side wall of tube body；The taper Tube head upper end diameter is greater than connecting section outer diameter, is cased with sealing ring outside in the connecting section, the sealing ring is sandwiched under tube body Between end face and tapered tube head upper surface.