CN204446748U - A kind of anticoagulant volume control device for sampled plasma - Google Patents

Abstract

The utility model discloses an anticoagulant flow control device used in the plasma collection process. It includes an anticoagulant delivery bag, an anticoagulant pipeline and an anticoagulant pump, the anticoagulant pipeline is installed on the anticoagulant pump, one end of the anticoagulant pipeline is connected with the anticoagulant delivery bag, and an anticoagulant The coagulant electronic scale, the anticoagulant delivery bag is placed on the anticoagulant electronic scale. The utility model performs automatic calibration through the change of the value of the anticoagulant electronic scale, adjusts the rotation speed of the anticoagulant pump to realize the setting parameters of the anticoagulant ratio; The operating parameters of the anticoagulant pump and centrifugal cup realize the setting parameters of the anticoagulant ratio, and realize the reasonable control of the amount of anticoagulant used.

Description

An anticoagulant flow control device for plasma collection

technical field

The utility model belongs to the technical field of plasma collection, in particular to an anticoagulant flow control device used in the plasma collection process.

Background technique

In the process of plasmapheresis, in order to ensure that the blood in the consumables does not coagulate, it is necessary to mix whole blood with an anticoagulant in a certain proportion. Because part of the anticoagulant will enter the plasma donor's body along with the reinfusion of blood cells, which may cause discomfort to the plasma donor, and another part of the anticoagulant will enter the collected raw plasma, reducing the protein content of the raw plasma, and Affect the quality of terminal blood products. The ratio of plasma to blood cells in human blood is different, and the difference between men and women is obvious. Therefore, under the premise of ensuring that blood coagulation does not occur during the plasmapheresis process, the less anticoagulant is used, the better.

In addition, the consumables in plasma collection have different degrees of wear and tear during long-term use. For each set of pumps and pipeline consumables installed in it, its characteristic value (the flow rate that the pump passes through each circle) is affected by many factors. Influence, including: the inner diameter of the pipeline, the wall thickness, the extrusion rebound speed, the pressure in the pipeline, the inner diameter of the pump casing, the wear of the pump head, etc. If the anticoagulant is controlled according to the theoretical value, more anticoagulant that is actually unnecessary will be consumed.

Utility model content

The purpose of the invention of the utility model is: in order to solve the problem of excessive use of anticoagulant due to the loss of consumables in the prior art, the utility model proposes an anticoagulant flow control device for plasma collection.

The technical scheme of the utility model is: an anticoagulant flow control device for blood plasma collection of the utility model, comprising an anticoagulant delivery bag, an anticoagulant pipeline and an anticoagulant pump, and the anticoagulant pipeline is installed On the anticoagulant pump, one end of the anticoagulant pipeline is connected to an anticoagulant delivery bag, and an electronic scale for anticoagulant is also included, and the anticoagulant delivery bag is placed on the electronic scale for anticoagulant.

Further, a photodetector is also included, and the photodetector is passed through by the blood pipeline.

The beneficial effects of the utility model are: an anticoagulant flow control device for blood plasma collection of the utility model can be automatically checked through the change of the anticoagulant electronic weighing value, and the anticoagulant pump can be adjusted to realize anticoagulation The setting parameters of the ratio of the anticoagulant; at the same time, automatic calibration is carried out through the change of the value of the photoelectric detector in the pipeline, and the operating parameters of the anticoagulant pump and the centrifugal cup are adjusted to realize the setting parameters of the anticoagulant ratio, which realizes the control of the amount of anticoagulant used. Reasonable control.

Description of drawings

Fig. 1 is a structural schematic diagram of an anticoagulant flow control device for plasma collection of the present invention.

Among them, the needle 1, the first connecting piece 2, the anticoagulant delivery bag 3, the anticoagulant pump 4, the anticoagulant pipeline 5, the blood pump 6, the blood pipeline 7, the centrifuge cup 8, the second connecting piece 9, plasma collection Bag 10, puncture device 11, anticoagulant electronic scale 12, photodetector 13.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in FIG. 1 , it is a schematic structural diagram of an anticoagulant flow control device for plasma collection of the present invention. The existing plasma collection device comprises a needle, a first connecting piece, a blood pump, a blood pipeline, a centrifuge cup, a second connecting piece, a plasma collection bag and a puncturer; the blood pipeline is installed on the blood pump, and one end of the blood pipeline is connected through the first The part is connected with the needle, and the other end of the blood pipeline is connected with the centrifuge cup; the second connection part is connected with the centrifuge cup, the plasma collection bag and the puncturer through the blood pipeline.

The utility model relates to an anticoagulant flow control device for plasma collection, comprising an anticoagulant delivery bag, an anticoagulant pipeline and an anticoagulant pump, the anticoagulant pipeline is installed on the anticoagulant pump, and the anticoagulant One end of the pipeline is connected to the anticoagulant delivery bag, and the other end is connected to the first connecting piece. It also includes an anticoagulant electronic scale, and the anticoagulant delivery bag is placed on the anticoagulant electronic scale. Preferably, the utility model adopts a bracket type electronic scale, and the anticoagulant delivery bag is placed on the bracket of the anticoagulant electronic scale.

Preferably, the utility model further includes a photodetector, the photodetector is arranged on the blood pipeline between the second connecting piece and the centrifuge cup, and the blood pipeline passes through the photodetector.

The working process of a kind of anticoagulant flow control device used for blood plasma collection of the present utility model is:

The needle is inserted into the human body, and the anticoagulant is mixed with the whole blood through the operation of the anticoagulant pump and the blood pump, and then sent into the centrifuge cup. The centrifuge cup separates the whole blood, and the separated plasma is transported to the plasma collection bag for collection. During the operation of the anticoagulant pump, the anticoagulant is transported from the anticoagulant delivery bag to the anticoagulant pipeline and mixed with the whole blood. The coagulant is monitored in real time, and according to the change of the electronic weighing value of the anticoagulant, it is automatically checked with the standard value, and then the speed of the anticoagulant pump is adjusted, so as to realize the accurate control of the anticoagulant ratio. After the anticoagulant is mixed with the whole blood, it is transported to the centrifuge cup through the blood pipeline and the photoelectric detector. The photodetector monitors the blood passing through the blood pipeline in real time. The change of the actual content ratio of the coagulant is automatically checked with the standard value, and then the operating parameters of the anticoagulant pump or centrifugal cup are adjusted, so as to achieve accurate control of the anticoagulant ratio.

Those skilled in the art will appreciate that the embodiments described here are to help readers understand the principle of the utility model, and it should be understood that the protection scope of the utility model is not limited to such specific statements and examples. Those skilled in the art can make various other specific modifications and combinations based on the technical revelations disclosed in the utility model without departing from the essence of the utility model, and these variations and combinations are still within the protection scope of the utility model.

Claims (2)

1. An anticoagulant flow control device for plasma collection, comprising an anticoagulant delivery bag, an anticoagulant pipeline and an anticoagulant pump, the anticoagulant pipeline is installed on the anticoagulant pump, the anticoagulant One end of the coagulant pipeline is connected to the anticoagulant delivery bag, and it is characterized in that it also includes an anticoagulant electronic scale, and the anticoagulant delivery bag is placed on the anticoagulant electronic scale. 2 . The anticoagulant flow control device for plasma collection according to claim 1 , further comprising a photodetector, and the photodetector is passed through by a blood pipeline. 3 .