CN2706178Y - Negative pressure transfusion dispensing device - Google Patents

Abstract

The utility model relates to a negative pressure transfusion dispensing device, comprising a cylindrical negative pressure chamber which comprises an upper face (1), a floor face (10) and a side face (4). The center of the upper face is provided with a hole (2) whose inner diameter corresponds to the outer diameter of the bottleneck of a transfusion bottle. The negative pressure chamber is divided into two half blocks in longitudinal direction. One side of the negative pressure chamber connects with a hinge (6) and another side connects with a hasp (7). The joint close of two half blocks is equipped with a seal washer (5). The hole (2) of the upper face is divided into half, and the inner wall of the hole is provided with the seal washer (3). The outer wall of the negative pressure chamber is equipped with a gas extracting tube (8) which communicates with the inner of the negative pressure chamber. With a disposable medicine feeding device matching with to use, the transfusion bottle is put in the negative pressure transfusion dispensing device to cause the bottleneck of the transfusion bottle to be kept in the hole of the upper face. When the disposable medicine feeding device is inserted into the bottle cap of the transfusion bottle, a gas extracting device extracts air meanwhile, for the negativepressure chamber and the transfusion bottle to add medicine. With the balance pressure between the inner and the outer of the transfusion bottle, the bottle wall is extracted not to be collapsed in order to guarantee to add medicine.

Description

Negative pressure infusion device

Technical field

This utility model relates to a kind of medical apparatus, a kind of device that infusion bottle is carried out dosing, a kind of negative pressure infusion device.

Background technology

When the normal saline of transfusion usefulness or glucose solution use, often need to add other medicinal liquids such as antibiotics, vitamin.Add other medicinal liquid at present and generally all adopt and hold syringe and come dosing in transfusion, operation is relatively more tired multiple.Chinese patent 95202094.7 has been introduced and a kind of medicinal liquid has been added disposable drug feeding device in the infusion bottle, cooperates with the instrument of bleeding, and to the infusion bottle dosing, can accelerate the speed of making up a prescription greatly.Chinese patent 02260489.8 has been introduced a kind of disposable medicine-supplementing transfusion device, only need puncture once to Infusion bottle lid, can finish dosing and transfusion two steps work.Chinese patent 96229558.2 has been introduced a kind of medicinal liquid aspirator, is used with disposable drug feeding device, for the dosing process provides negative pressure.Above-mentioned chemicals dosing plant is used on the infusion bottle of glass, can accelerate the speed of making up a prescription greatly, alleviates nurse's labor intensity.But, for the infusion bottle of cabinet, because plastic bottle body is softer, bottle can takes place in pumping process taken out flat phenomenon, thereby can't normally use.

Summary of the invention

This utility model is intended to propose a kind of chemicals dosing plant that can be used on the plastic infusion bottle, a kind of negative pressure infusion device.

This negative pressure infusion device comprises the negative pressure chamber of a tubular, and this negative pressure chamber is by end face, and bottom surface and sidewall are formed.There is a hole at the center of end face, and the external diameter of the internal diameter in hole and infusion bottle bottleneck is suitable.Negative pressure chamber vertically is divided into two half blocks, and a side of two half blocks is linked to each other by hinge, and opposite side links to each other with hasp.The commissure of two half blocks has a seal washer.Also there is seal washer in hole on the end face also in two on the inwall in hole.An exhaust tube is arranged on the outer wall of negative pressure chamber, and exhaust tube is connected with negative pressure chamber inside.

The use that matches with disposable drug feeding device of this negative pressure infusion device.Open negative pressure chamber, the infusion bottle of plastics is put into it, make in the hole of Bottle neck keeper on end face of infusion bottle.The negative pressure chamber of closing buckles hasp.Rely on the sealing function of seal washer, form an airtight space between negative pressure chamber and the transfusion bottle.In the bottle cap of infusion bottle, insert disposable drug feeding device, by exhaust tube negative pressure chamber bled with air extractor, simultaneously by disposable drug feeding device to bleeding in the bottle, can carry out feeding operations.Because when dosing, infusion bottle is in the negative pressure chamber, and in the bottle, bottle is outer is all negative pressure, pressure has obtained balance, thereby a bottle wall can not taken out flatly, guarantees that feeding operations can normally carry out.

Description of drawings

Accompanying drawing 1 is the structure chart of this negative pressure infusion device;

Accompanying drawing 2 is the schematic diagram that negative pressure infusion device cooperates with infusion bottle;

Accompanying drawing 3 is the another kind of structure chart of negative pressure infusion device;

Accompanying drawing 4 is the use principle figure of negative pressure infusion device.

The specific embodiment

As shown in Figure 1, this negative pressure infusion device comprises the negative pressure chamber of a tubular, and this negative pressure chamber is by end face 1, and bottom surface 10 and sidewall 4 are formed.There is a hole 2 at the center of end face, and the external diameter of the internal diameter in hole and infusion bottle bottleneck is suitable.Negative pressure chamber vertically is divided into two half blocks, and a side of two half blocks is linked to each other by hinge 6, and opposite side links to each other with hasp 7, and the commissure of two half blocks has a seal washer 5.Also there is seal washer 3 in hole 2 on the end face also in two on the inwall in hole.An exhaust tube 8 is arranged on the outer wall of negative pressure chamber, and exhaust tube is connected with negative pressure chamber inside.9 is the intercommunicating pore of exhaust tube and negative pressure chamber among the figure.Negative pressure chamber generally makes of material transparent, so that the medicinal liquid in the infusion bottle is observed.

As shown in Figure 2, infusion bottle 12 is put into negative pressure chamber 14, the bottleneck 13 of infusion bottle is stuck in the hole 2 on the end face 1, the negative pressure chamber of closing buckles hasp 7.As shown in Figure 4, in the bottle cap of infusion bottle, insert disposable drug feeding device 18, by exhaust tube negative pressure chamber 14 bled with air extractor 16, simultaneously by disposable drug feeding device to bleeding in the infusion bottle 12, can carry out feeding operations.The negative pressure of the negative pressure of negative pressure chamber and medicinal liquid suction can obtain with same aspirator, also can obtain respectively with two aspirators.19 is the medicinal liquid bottle among Fig. 4.

As shown in Figure 1, the commissure of a half block of the negative pressure chamber of this negative pressure infusion device can have a seal groove, on the inwall in the hole 2 on the described end face 1 seal groove is arranged also, described seal washer 5,3 embeds respectively in the above-mentioned seal groove, is convenient to the seal washer location.The bottom of negative pressure chamber bottom surface 10 can be stretched out into a substrate 11 forward, and it is more steady that negative pressure chamber is placed.

As shown in Figure 3, this negative pressure infusion device can also comprise superclean bench 15, and medicinal liquid aspirator 16 is arranged on the superclean bench, and the medicinal liquid aspirator can be placed on the table top, also can be installed under the table top, only suction nozzle is reached on the table top.Described negative pressure chamber 14 places on the superclean bench, and its exhaust tube 8 links to each other with the air entry 17 of medicinal liquid aspirator.Negative pressure chamber can fix with table top, also can move freely.

Claims (3)

1, a kind of negative pressure infusion device, the negative pressure chamber that comprises a tubular, this negative pressure chamber is by end face (1), bottom surface (10) and sidewall (4) are formed, there is a hole (2) at the center of end face, the bottleneck external diameter of the internal diameter in hole and infusion bottle is suitable, it is characterized in that negative pressure chamber vertically is divided into two half blocks, one side of two half blocks is linked to each other by hinge (6), and opposite side links to each other with hasp (7), and the commissure of two half blocks has a seal washer (5), hole on the end face (2) also in two, seal washer (3) is also arranged on the inwall in hole, an exhaust tube (8) is arranged on the outer wall of negative pressure chamber, exhaust tube is connected with negative pressure chamber inside.

2, negative pressure infusion device as claimed in claim 1, the commissure that it is characterized in that a half block of described negative pressure chamber has a seal groove, on the inwall in the hole on the described end face (2) seal groove is arranged also, described seal washer (5) (3) embeds in the above-mentioned seal groove, and the bottom of described bottom surface (10) is stretched out into a substrate (11) forward.

3, negative pressure infusion device as claimed in claim 1 or 2, it is characterized in that it also comprises superclean bench (15), superclean bench is equipped with medicinal liquid aspirator (16), described negative pressure chamber (14) places on the superclean bench, and its exhaust tube (8) links to each other with the air entry (17) of medicinal liquid aspirator.

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