Drip chamber capable of exhausting air and stopping liquid automatically

Abstract

The utility model provides a self-exhausting and self-liquid-stopping drip chamber which comprises a hollow drip chamber body, a liquid inlet drip tube is arranged at the top of the drip chamber body, and a liquid outlet tube is arranged at the bottom of the drip chamber body. A part of the liquid inlet dropper extends into the drip chamber body; a cylindrical exhaust guide cylinder communicated with the liquid outlet pipe is fixedly arranged at the bottom in the drip chamber body, the top end of the exhaust guide cylinder is covered with a cap for sealing the top end of the exhaust guide cylinder, and at least one vertical liquid inlet exhaust gap is formed in the side face of the exhaust guide cylinder; a floating body is arranged in the exhaust guide cylinder, the lower portion of the floating body is provided with a covering face covering the top end of the liquid outlet pipe, and the floating body can move back and forth in the exhaust guide cylinder according to the buoyancy of the liquid medicine. According to the self-exhausting and self-liquid-stopping drip chamber, the floating body capable of covering the top end of the liquid outlet pipe is arranged in the exhausting guide cylinder, the stable self-exhausting and self-liquid-stopping functions are achieved, and automatic assembly with stable quality can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, concretely relates to a self-bleeding and self-stopping liquid drop bucket for disposable infusion apparatus. BACKGROUND

[0002] The existing conventional infusion apparatus is composed of a bottle plug puncture device, a catheter, a drop bucket, an adjuster and a liquid medicine filter, and has the problems of difficult air bleeding during the infusion process, a large number of bubbles and difficulty in removing the bubbles, etc. Moreover, the existing infusion apparatus needs to use the traditional operation method of squeezing the drop bucket to remove a large number of bubbles generated when the liquid medicine is mixed with air during the operation process, which results in low infusion work efficiency, especially improper nursing, air input into the human body, formation of embolus and a series of problems of endangering the cardiovascular system. The self-bleeding assembly used in the drop bucket of the infusion apparatus with the publication number CN206473630U has the self-bleeding function, but when the liquid medicine in the infusion bottle is to be completely infused, the infusion needle needs to be pulled out of the human body, otherwise the "back bleeding" phenomenon will occur, which is very harmful to the patient's body. The self-stopping liquid infusion apparatus mostly uses the liquid stopping magic liquid, but the adhesion and installation quality stability of the liquid stopping magic liquid is poor, which affects the self-stopping liquid effect of the infusion apparatus. SUMMARY

[0003] To solve the problems of the existing infusion apparatus in self-stopping liquid and self-bleeding, the utility model provides a self-bleeding and self-stopping liquid drop bucket.

[0004] The utility model discloses a self -bleeding self -stop liquid drop pot, including hollow drop body, the top of drop body is provided with liquid inlet drop pipe, and the bottom of drop body is equipped with liquid outlet pipe, a part of liquid inlet drop pipe is partially inserted into drop body, the bottom in drop body is fixed with the exhaust guide cylinder of a cylinder and the exhaust guide cylinder of liquid outlet pipe intercommunication, the top of exhaust guide cylinder is covered with the cap that covers its top, and the side of exhaust guide cylinder is provided with at least one vertical liquid inlet exhaust gap, the inner of exhaust guide cylinder is provided with the float, and the lower part of float has the covering surface that covers the top of liquid outlet pipe, and float can move back and forth in exhaust guide cylinder according to the size of the liquid medicine buoyancy. When using, after the liquid medicine enters drop body through liquid inlet drop pipe, shunts through the cap, so that the drop of medicine does not directly drop into liquid outlet pipe, but flows into the space between drop body and exhaust guide cylinder and enters exhaust guide cylinder through liquid inlet exhaust gap, so that the liquid level of liquid medicine gradually rises, and in the process of the rising of liquid level, even if there is air bubble in the space between drop body and exhaust guide cylinder, under the block of liquid inlet exhaust gap, air bubble also cannot enter exhaust guide cylinder, thereby avoiding that the liquid medicine flowing out of liquid outlet pipe contains air bubble, when the liquid level of liquid medicine reaches a certain height, the float floats up under the buoyancy of liquid medicine, liquid outlet pipe opens, and normal infusion is realized, when the liquid medicine in infusion bottle is to be exhausted, the liquid medicine in drop body gradually reduces, under the action of gravity, the float falls, and the lower part of float seals liquid outlet pipe, and the function of automatic liquid stop is completed.

[0005] The diameter of the cap is greater than the diameter of the exhaust guide cylinder.

[0006] The float is a sphere, or the lower part of the float is spherical or conical.

[0007] The liquid outlet pipe and the exhaust guide cylinder are designed as a whole to facilitate positioning and assembly of the exhaust guide cylinder.

[0008] The drop body is split type, comprising a drop upper sleeve and a drop bottom shell, and the drop bottom shell is connected with the drop upper sleeve to form the drop body.

[0009] The drop bottom shell is provided with an annular lug, and the lower end of the drop upper sleeve is in contact with the annular lug.

[0010] The utility model discloses a self -bleeding self -stop liquid drop pot, through setting up the float that can cover the top of liquid outlet pipe in exhaust guide cylinder, realizes the function of stable self -bleeding and self -stop liquid, and can realize the automatic assembly of quality stability. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The structure diagram of the utility model for the float being a sphere;

[0012] Figure 2 The structure diagram of the utility model for the lower part of the float being spherical.

[0013] Figure 3 For Figure 2 perspective view of the middle floating body;

[0014] Figure 4 perspective view of the floating body with lower conical part. DETAILED DESCRIPTION

[0015] The specific embodiments of the present application are further described below in conjunction with the accompanying drawings: Embodiment

[0016] As Figure 1 shown, the self-venting self-stopping liquid drop funnel of the present application comprises a hollow drop funnel body, a liquid inlet tube 2 is provided at the top of the drop funnel body, and a liquid outlet tube 3 is provided at the bottom of the drop funnel body; the drop funnel body is of split type, comprising a drop funnel upper sleeve 11 and a drop funnel bottom shell 12, an annular lug 121 is provided on the outer wall of the drop funnel bottom shell 12, the upper part of the drop funnel bottom shell 12 is sleeved with the drop funnel upper sleeve 11 to form the drop funnel body, and the lower end of the drop funnel upper sleeve 11 abuts against the annular lug 121; a part of the liquid inlet tube 2 extends into the drop funnel body; a cylindrical exhaust flow guide cylinder 4 is fixedly provided at the bottom of the drop funnel body and communicates with the liquid outlet tube 3, the liquid outlet tube and the exhaust flow guide cylinder are designed as a whole, the top end of the exhaust flow guide cylinder 4 is capped with a cap 5 which closes the top end thereof, and four vertical liquid inlet and exhaust slits 41 are provided on the side surface of the exhaust flow guide cylinder 4; a spherical floating body 6 is provided in the exhaust flow guide cylinder 4, and the floating body 6 can move back and forth in the exhaust flow guide cylinder 4 according to the size of the liquid floating force. Embodiment

[0017] As Figure 2 , Figure 3 shown, the lower part of the floating body 6 in the present embodiment is spherical. Embodiment

[0018] As Figure 4 shown, the lower part of the floating body 6 in the present embodiment is conical.

Claims

1. A self-venting and self-stopping liquid droplet bucket, comprising a hollow droplet bucket body, a liquid inlet tube being formed on the top of the droplet bucket body, and a liquid outlet tube being formed on the bottom of the droplet bucket body; a portion of the liquid inlet tube extends into the droplet bucket body; a cylindrical air venting and guiding cylinder is fixedly arranged in the bottom of the droplet bucket body and communicates with the liquid outlet tube, a cap is arranged on the top end of the air venting and guiding cylinder to close the top end of the air venting and guiding cylinder, and at least one vertical liquid inlet and air venting slit is formed on the side of the air venting and guiding cylinder; characterized in that The inner part of the exhaust guide cylinder is provided with a float, the lower part of the float has a covering surface covering the top end of the liquid outlet pipe, and the float can move back and forth in the exhaust guide cylinder according to the size of the liquid buoyancy.

2. A self-venting self-stopping liquid droplet bucket according to claim 1, wherein The diameter of the cap is larger than the diameter of the exhaust guide cylinder.

3. A self-venting self-stopping droplet funnel according to claim 1, wherein The float is a sphere, or the lower part of the float is spherical or conical.

4. The self-venting, self-stopping droplet funnel of claim 1, wherein The liquid outlet pipe and the exhaust guide cylinder are designed as a whole, so that the positioning and assembly of the exhaust guide cylinder are facilitated.

5. The self-venting, self-stopping droplet funnel of claim 1, wherein The drip chamber body is split type, comprising a drip chamber upper sleeve and a drip chamber bottom shell, and the upper part of the drip chamber bottom shell is sleeved with the drip chamber upper sleeve to form the drip chamber body.

6. A self-venting, self-stopping droplet funnel according to claim 5, wherein The outer wall of the drip chamber bottom shell is provided with an annular lug, and the lower end of the drip chamber upper sleeve is in abutment with the annular lug.

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