CN204951842U - A dropping funnel for on transfusion system - Google Patents

Abstract

The utility model provides a dripping funnel for infusion sets, which comprises a dropper with an empty compartment, a liquid inlet pipe at the upper end of the dropper and an infusion solution at the lower end of the dropper The lower end of the empty chamber is provided with an infusion port connected with the infusion tube. The empty chamber is provided with a floating body, a sealing body connected with the floating body, and a guide column fixed in the middle of the bottom of the sealing body. The lower part of the sealing body is provided with a The diameter of the guide column is smaller than the aperture of the infusion port, and the diameter of the floating body is set to 1/2 to 4/5 of the inner diameter of the empty chamber; The tube is equipped with a floating body, a sealing body and a guide column. When the infusion is nearing the end, the guide column can automatically enter the infusion port, and the sealing body can seal the infusion port, and automatically control the stop of the infusion, so as to ensure that no air enters the blood, which is convenient. Change fluid and wait for needle withdrawal.

Description

Drip funnel for infusion sets

technical field

The utility model belongs to the technical field of infusion instruments, such as gravity infusion; blood infusion; and accessories used therein, in particular to a dripping funnel used on an infusion set.

Background technique

At present, when patients are given intravenous infusion, disposable infusion sets are widely used, mainly composed of bottle stopper piercer, air intake device, drip funnel, flow regulator, liquid medicine filter, intravenous infusion needle and several connecting catheters. Under pressure, the liquid in the bottle flows into the drip funnel along the thinner infusion tube. When the pressure of the water column in the drip funnel is greater than the venous pressure, the liquid in the bottle flows into the vein along the tube. During the infusion process, the attendant needs to pay close attention to the medicine Otherwise, when the liquid level of the medicinal liquid drops to the lower end of the dropper, the gas enters the lower end. At this time, to replace the liquid, it is necessary to first empty the gas that enters the lower end of the dropper. In severe cases, the gas can even enter the blood through the dropper. It is easy to cause air embolism, endanger life safety, and lead to medical accidents.

Contents of the invention

In view of this, the purpose of this utility model is to provide a dripping funnel for infusion sets, the dripping funnel for infusion sets is provided with a floating body, a sealing body and a guide column in the dripping tube, when the infusion is nearing the end , The guide column can automatically enter the infusion port, the sealing body can seal the infusion port, and automatically control the stop of the infusion, so as to ensure that no air enters the blood, which is convenient for changing the liquid and waiting for the needle to be withdrawn.

In order to solve the above-mentioned technical problems, the utility model is a dripping funnel used on an infusion set, comprising a dropper with an empty compartment, a liquid inlet tube arranged at the upper end of the dropper and an infusion tube arranged at the lower end of the dropper, the empty compartment The lower end is provided with an infusion port connected with the infusion tube. The empty chamber is provided with a floating body, a sealing body connected with the floating body and a guide column fixed in the middle of the bottom of the sealing body. Conical surface, the diameter of the guide column is smaller than the aperture of the infusion port, and the diameter of the floating body is set to 1/2 to 4/5 of the inner diameter of the empty chamber.

Further, the diameter of the guide post is set to be 2/3-4/5 of the aperture of the infusion port.

Further, the upper part of the sealing body is surrounded by a liquid medicine filter membrane, and the upper end of the liquid medicine filter membrane is connected to the floating body.

Further, the floating body includes an annular floating ring and a liquid inlet groove surrounded by the annular floating ring, and the liquid inlet groove is in communication with the liquid medicine filter membrane.

Further, a gas chamber filled with gas is arranged inside the annular floating ring.

Further, the infusion port is configured as a cone structure adapted to the sealing cone surface.

The beneficial effects of the utility model are:

The utility model is used for the drip funnel on the infusion set. The dropper is provided with a floating body, a sealing body and a guide column. When the infusion is nearing the end, the guide column can automatically enter the infusion port, and the sealing body can seal the infusion port and automatically control. The infusion is stopped to ensure that no air enters the blood, allowing fluid changes and waiting for the needle to be withdrawn.

Description of drawings

Fig. 1 is the structural representation of the utility model for the drip funnel on the infusion set.

Reference signs: 1-dropper; 2-inlet tube; 3-infusion tube; 4-empty chamber; 5-infusion port; 6-guiding post; 7-sealing cone; Floating ring; 10-liquid inlet tank; 11-floating body; 12-sealing body.

detailed description

The utility model is described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Fig. 1, it is a structural schematic diagram of the drip funnel used in the infusion set of the utility model. A drip funnel used in the infusion set of the utility model includes a drop tube 1 provided with an empty chamber 4, a drop tube 1 arranged on the drop tube 1 The liquid inlet pipe 2 at the upper end and the infusion tube 3 arranged at the lower end of the dropper 1, the lower end of the empty chamber 4 is provided with an infusion port 5 communicating with the infusion pipe 3, a floating body 11 and a floating body 11 connected to the empty chamber 4 are arranged in the empty chamber 4. The sealing body 12 and the guide column 6 fixed in the middle of the bottom of the sealing body 12, the sealing body 12 bottom is provided with a sealing cone surface 7 sealingly connected with the infusion port 5, the diameter of the guide column 6 is smaller than the infusion port 5 aperture, the The diameter of the floating body 11 is set to 1/2-4/5 of the inner diameter of the empty chamber 4 .

In this embodiment, the dropper 1 is provided with a floating body 11, a sealing body 12 and a guide column 6. When the empty chamber 4 is filled with liquid, the floating body 11 drives the sealing body 12 and the guiding column 6 to leave the infusion port 5. When the infusion is nearing the end , through the weight of the floating body 11, the sealing body 12 and the guide column 6 itself, the guide column 6 can automatically enter the infusion port 5 and the infusion tube 3, and the sealing body 12 can seal the infusion port 5 through the sealing cone surface 7, and the automatic control The infusion is stopped to ensure that no air enters the blood, allowing fluid changes and waiting for the needle to be withdrawn.

Further, preferably, the diameter of the guide post 6 is set to be 2/3 to 4/5 of the diameter of the infusion port 5. This structure not only facilitates the smooth entry of the guide post 6 into the infusion port 5, but also facilitates The sealing cone 7 performs sealing.

Further, preferably, the upper part of the sealing body 12 is provided with a liquid medicine filter membrane 8, and the upper end of the liquid medicine filter membrane 8 is connected to the floating body 11. This structure is beneficial for the liquid medicine filter membrane 8 to filter the liquid medicine and improve the efficiency of drug use. security.

Further, preferably, the floating body 11 includes an annular floating ring 9 and a liquid inlet tank 10 surrounded by the annular floating ring 9, and the liquid inlet tank 10 communicates with the liquid medicine filter membrane 8. In this embodiment, the structure of the floating body 11, The sealing body 12 and the guide column are arranged as an integrated mechanism, so that the medicinal liquid entering from the liquid inlet pipe can directly enter the liquid inlet tank 10, then filter through the medicinal liquid filter membrane 8, and finally infuse through the infusion tube.

Further, preferably, the annular floating ring 9 is provided with an air chamber filled with gas, and this structure is beneficial for the annular floating ring 9 to float in the liquid.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (6)

1. A drip funnel for infusion sets, comprising a dropper provided with an empty chamber, a liquid inlet pipe arranged at the upper end of the dropper and an infusion tube arranged at the lower end of the dropper, characterized in that: the lower end of the empty chamber is provided with The infusion port communicated with the infusion tube, the empty chamber is provided with a floating body, a sealing body connected to the floating body and a guide column fixed in the middle of the bottom of the sealing body, and the lower part of the sealing body is provided with a sealing cone that is sealingly connected with the infusion port, The diameter of the guide column is smaller than the aperture of the infusion port, and the diameter of the floating body is set to 1/2-4/5 of the inner diameter of the empty chamber. 2. The dropping funnel for infusion set according to claim 1, characterized in that: the diameter of the guide post is set to 2/3-4/5 of the aperture of the infusion port. 3. The dropping funnel for infusion set according to claim 1 or 2, characterized in that: the upper part of the sealing body is surrounded by a liquid medicine filter membrane, and the upper end of the medicine liquid filter membrane is connected to the floating body. 4. The dripping funnel for infusion set according to claim 3, characterized in that: the floating body comprises an annular floating ring and a liquid inlet tank surrounded by the annular floating ring, and the liquid inlet tank is connected with the liquid medicine filter Membrane connected. 5. The dropping funnel for infusion set according to claim 4, characterized in that: an air chamber filled with gas is arranged in the annular floating ring. 6 . The dripping funnel for infusion set according to claim 1 , characterized in that: the infusion port is configured as a cone structure adapted to the sealing cone surface. 7 .