CN106860948B - Medical infusion device - Google Patents
Medical infusion device Download PDFInfo
- Publication number
- CN106860948B CN106860948B CN201710093887.7A CN201710093887A CN106860948B CN 106860948 B CN106860948 B CN 106860948B CN 201710093887 A CN201710093887 A CN 201710093887A CN 106860948 B CN106860948 B CN 106860948B
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- China
- Prior art keywords
- cavity
- rubber tube
- cuboid body
- infusion
- liquid medicine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
Abstract
The invention discloses a medical infusion device, which comprises a cuboid body, a first cavity, a second cavity, a rubber tube, an input port, an output port and an air inlet, wherein the first cavity is arranged in the cuboid body; the upper part of the cuboid body is provided with a first cavity; the lower part of the cuboid body is provided with a second cavity; the upper surface of the second cavity and the lower surface of the first cavity are positioned on the same plane; the volume of the second cavity is smaller than that of the first cavity; a round hole is formed in the upper surface of the second cavity; one end of the rubber tube is opened, the other end of the rubber tube is closed, and a notch which can be closed by the elasticity of the rubber tube is arranged on the side surface of the rubber tube; the infusion device of the invention is matched with the prior infusion apparatus to be used, so that the flow rate of the liquid medicine in the whole infusion process is stable.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a medical infusion device.
Background
The medical infusion bottle is a bottle for containing liquid which is infused into human body and is prepared for medical use when a patient is infused. Infusion sets are common disposable medical consumables used for intravenous infusion that are aseptically processed to establish a path between the vein and the medical fluid. Generally comprises a vein needle, a protective cap, a transfusion hose, a liquid medicine filter, a flow rate regulator, a dropping funnel, a bottle stopper puncture outfit, an air inlet pipe and an air filter which are connected. Under the action of atmospheric pressure, the liquid in the infusion bottle flows into the dropping funnel along the thin infusion hose, and when the pressure of the water column of the dropping funnel is greater than the venous pressure, the liquid in the bottle flows into the vein along the hose.
Before the medical staff uses, the medical staff checks the disinfection validity period of the disposable infusion apparatus, whether the package leaks air or not and other abnormalities, takes out the infusion apparatus, inserts the conical connector part (bottle stopper puncture outfit) into the infusion bottle, hangs the infusion bottle on the infusion rod, exhausts the air until the liquid medicine flows to the lower end of the infusion tube, closes the regulator, then pierces the vein needle into the disinfected vein, after the fixing is good, unlocks the tourniquet, and regulates the flow rate.
The prior infusion set has the following problems:
firstly, the flow rate of the liquid medicine in the liquid conveying pipe is high at the beginning, the liquid column in the bottle is slightly reduced along with the outflow of the liquid medicine, the volume of the gas above the bottle is slightly increased, the pressure intensity is slightly reduced, the total pressure intensity at the bottle mouth is slightly lower than the external atmospheric pressure, the air is pressed into the bottle from the air inlet pipe to supplement the air under the external atmospheric pressure, the pressure intensity at the bottle mouth is basically kept at one atmospheric pressure, the liquid medicine can stably drip at a constant speed and does not change along with the gradual reduction of the liquid medicine in the bottle, but the pressure intensity at the bottle mouth is slightly higher than one atmospheric pressure in the beginning short time, namely before the flow rate is not stable, so the liquid medicine can easily drip quickly in the beginning period of time, and discomfort is easily brought to the.
Second, when infusion speed was very fast, the liquid level short time change in the infusion bottle was great, because the intake pipe setting is on bottle plug puncture ware, the inlet channel of intake pipe is very thin, and the air just can't be timely gets into the infusion bottle through the intake pipe and supplies in to the change when making the pressure of infusion bottleneck department greatly, consequently can appear the phenomenon that the liquid medicine can't be steady dripping at the uniform velocity.
How to ensure that the liquid medicine can stably drip at a constant speed no matter whether the transfusion speed is high or low is a technical problem worthy of research.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: in the prior infusion apparatus, the liquid medicine is easy to drip quickly in a period of time, cannot drip stably at a constant speed, and is easy to cause discomfort to the body of a patient; in the infusion process, the liquid medicine precipitate blocks the route of air inlet hole easily sometimes, and in addition the intake pipe sets up on bottle plug puncture ware, and the inlet channel itself of intake pipe is very thin, leads to the air just unable timely to get into the infusion bottle through the intake pipe and supplements easily to the change greatly when making the pressure of infusion bottleneck department, consequently can appear the phenomenon that the liquid medicine can't be steady dripping at the uniform velocity.
In order to solve the technical problems, the invention adopts the technical scheme that: the medical infusion device is characterized by comprising a cuboid body, a first cavity, a second cavity, a rubber tube, an input port, an output port and an air inlet;
the upper part of the cuboid body is provided with a first cavity;
the lower part of the cuboid body is provided with a second cavity;
the upper surface of the second cavity and the lower surface of the first cavity are positioned on the same plane;
the volume of the second cavity is smaller than that of the first cavity;
a round hole is formed in the upper surface of the second cavity;
one end of the rubber tube is opened, the other end of the rubber tube is closed, and a notch which can be closed by the elasticity of the rubber tube is arranged on the side surface of the rubber tube; fluffy cotton is filled in the rubber tube;
the rubber tube is positioned in the second cavity, and one end of the opening of the rubber tube is in seamless connection with the round hole on the upper surface of the second cavity, so that the liquid medicine in the first cavity can enter the rubber tube firstly and then can enter the second cavity through the gap on the side surface of the rubber tube;
the air inlet is arranged at the upper part of the cuboid body, so that external air can enter the first cavity, and an air filtering device is arranged at the air inlet;
the input port is arranged on the left side surface of the cuboid body, so that liquid medicine can be injected into the first cavity, and a sealing plug is arranged at the input port;
the delivery outlet set up in the lower part of cuboid body to with the lower surface intercommunication of second cavity, delivery outlet department sets up the sealing plug.
More preferably, the volume of the first chamber is V1, the volume of the second chamber is V2, and V1 is 20 × V2.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the medical infusion device provided by the invention can stably drip the liquid medicine at a constant speed in a very short time at the beginning of infusion, and does not bring discomfort to the body of a patient; secondly, even if the infusion speed is high, the air can still be supplemented to the infusion bottle in time, and the liquid medicine still can drop stably at a constant speed.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Wherein, 1 is a cuboid body; 2 is a first cavity; 3 is a second cavity; 4 is a rubber tube; 5, a gap; 6 is an output port; 7 is an input port; and 8 is an air inlet.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Infusion sets are common disposable medical consumables used for intravenous infusion that are aseptically processed to establish a path between the vein and the medical fluid. Generally comprises a vein needle, a protective cap, a transfusion hose, a liquid medicine filter, a flow rate regulator, a dropping funnel, a bottle stopper puncture outfit, an air inlet pipe and an air filter which are connected, wherein the air filter is arranged in the air inlet pipe; knowledge about infusion sets is common general knowledge in the art and is not described in detail.
The medical infusion device comprises a cuboid body, a first cavity, a second cavity, a rubber tube, an input port, an output port and an air inlet; the upper part of the cuboid body is provided with a first cavity; the lower part of the cuboid body is provided with a second cavity; the upper surface of the second cavity and the lower surface of the first cavity are positioned on the same plane; the volume of the second cavity is smaller than that of the first cavity; a round hole is formed in the upper surface of the second cavity; one end of the rubber tube is opened, the other end of the rubber tube is closed, and a notch which can be closed by the elasticity of the rubber tube is arranged on the side surface of the rubber tube; fluffy cotton is filled in the rubber tube;
the rubber tube is positioned in the second cavity, and one end of the opening of the rubber tube is in seamless connection with the round hole on the upper surface of the second cavity, so that the liquid medicine in the first cavity can enter the rubber tube firstly and then can enter the second cavity through the gap on the side surface of the rubber tube;
the air inlet is arranged at the upper part of the cuboid body, external air can enter the first cavity through the air inlet, and an air filtering device (known technology) is arranged at the air inlet;
the input port is arranged on the left side surface of the cuboid body, so that liquid medicine can be injected into the first cavity, and a sealing plug is arranged at the input port;
the delivery outlet set up in the lower part of cuboid body to with the lower surface intercommunication of second cavity, delivery outlet department sets up the sealing plug.
The volume of the first cavity is set as V1, the volume of the second cavity is set as V2, and V1 is 20 × V2.
The working principle of the invention is as follows: when beginning, the liquid medicine enters into the rubber tube earlier, then enters into the second container through the gap of rubber tube side fast in, fill up in the second container very fast, in case negative pressure appears in the infusion in-process second container, the gap of rubber tube side can open, the liquid medicine of first container enters into in the second container rapidly like this, then the gap is found the horse and is closed, has guaranteed the pressure of infusion in-process transfusion system's bottle plug puncture ware department almost invariable like this to the stability of infusion in-process velocity of flow has been guaranteed. The rubber tube is filled skillfully, so that the pressure in the second container changes relatively slowly or is suddenly restored to normal pressure from negative pressure in the process that the liquid in the first container enters the second container when the notch on the rubber tube is opened.
The use method of the invention comprises the following steps:
firstly, adding liquid medicine to be infused into a syringe, wherein a needle head of the syringe penetrates through a sealing plug of an input port, and the liquid medicine is added into a first cavity;
secondly, inserting a bottle stopper puncture outfit of the infusion apparatus into a sealing plug of an output port;
and thirdly, adjusting the flow rate regulator of the infusion apparatus to the required infusion speed.
The infusion system that the invention can form: the medical transfusion system comprises a cuboid body, a first cavity, a second cavity, a rubber tube, an input port, an output port and an air inlet; the upper part of the cuboid body is provided with a first cavity; the lower part of the cuboid body is provided with a second cavity; the upper surface of the second cavity and the lower surface of the first cavity are positioned on the same plane; the volume of the second cavity is smaller than that of the first cavity; a round hole is formed in the upper surface of the second cavity; one end of the rubber tube is opened, the other end of the rubber tube is closed, and a notch which can be closed by the elasticity of the rubber tube is arranged on the side surface of the rubber tube; fluffy cotton is filled in the rubber tube; the rubber tube is positioned in the second cavity, and one end of the opening of the rubber tube is in seamless connection with the round hole on the upper surface of the second cavity, so that the liquid medicine in the first cavity can enter the rubber tube firstly and then can enter the second cavity through the gap on the side surface of the rubber tube; the air inlet is arranged at the upper part of the cuboid body, so that external air can enter the first cavity, and an air filtering device is arranged at the air inlet; the input port is arranged on the left side surface of the cuboid body, so that liquid medicine can be injected into the first cavity, and a sealing plug is arranged at the input port; the delivery outlet set up in the lower part of cuboid body to with the lower surface intercommunication of second cavity, delivery outlet department sets up the sealing plug.
Also comprises a vein needle, a transfusion hose, a liquid medicine filter, a flow rate regulator, a dropping funnel and a bottle stopper puncture outfit; one end of the transfusion hose is provided with a bottle stopper puncture outfit, and the other end is provided with a vein needle; a liquid medicine filter, a flow rate regulator and a dropping funnel are arranged between the two ends of the transfusion hose; the bottle stopper puncture outfit is inserted into the detachable rubber stopper of the transfusion hole.
Description of the infusion system: the infusion system combines the medical infusion device of the invention with the existing infusion set, but removes the air inlet hole and the air filter of the existing infusion set (because the top of the medical infusion device of the invention is provided with the air inlet).
Claims (2)
1. The medical infusion device is characterized by comprising a cuboid body, a first cavity, a second cavity, a rubber tube, an input port, an output port and an air inlet;
the upper part of the cuboid body is provided with a first cavity;
the lower part of the cuboid body is provided with a second cavity;
the upper surface of the second cavity and the lower surface of the first cavity are positioned on the same plane;
the volume of the second cavity is smaller than that of the first cavity;
a round hole is formed in the upper surface of the second cavity;
one end of the rubber tube is opened, the other end of the rubber tube is closed, and a notch which can be closed by the elasticity of the rubber tube is arranged on the side surface of the rubber tube; fluffy cotton is filled in the rubber tube;
the rubber tube is positioned in the second cavity, and one end of the opening of the rubber tube is in seamless connection with the round hole on the upper surface of the second cavity, so that the liquid medicine in the first cavity can enter the rubber tube firstly and then can enter the second cavity through the gap on the side surface of the rubber tube;
the air inlet is arranged at the upper part of the cuboid body, so that external air can enter the first cavity, and an air filtering device is arranged at the air inlet;
the input port is arranged on the left side surface of the cuboid body, so that liquid medicine can be injected into the first cavity, and a sealing plug is arranged at the input port;
the delivery outlet set up in the lower part of cuboid body to with the lower surface intercommunication of second cavity, delivery outlet department sets up the sealing plug.
2. The infusion device as claimed in claim 1, wherein the first chamber has a volume of V1, the second chamber has a volume of V2, V1-20 x V2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710093887.7A CN106860948B (en) | 2017-02-21 | 2017-02-21 | Medical infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710093887.7A CN106860948B (en) | 2017-02-21 | 2017-02-21 | Medical infusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106860948A CN106860948A (en) | 2017-06-20 |
| CN106860948B true CN106860948B (en) | 2020-02-11 |
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ID=59166634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710093887.7A Expired - Fee Related CN106860948B (en) | 2017-02-21 | 2017-02-21 | Medical infusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106860948B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3929157A (en) * | 1974-06-17 | 1975-12-30 | Juan R Serur | Fluid flow regulator |
| DE2509444A1 (en) * | 1975-03-05 | 1976-09-16 | Kiehl Paul | Safety type infusion device - has automatic stopping system to prevent or hinder ingress of air into the infusion hose |
| CN2812945Y (en) * | 2005-07-30 | 2006-09-06 | 艾艳 | Infusion device |
| CN102553014A (en) * | 2011-11-28 | 2012-07-11 | 上海宝舜医疗器械有限公司 | Automatic non-return drip chamber with automatic exhaust function |
-
2017
- 2017-02-21 CN CN201710093887.7A patent/CN106860948B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3929157A (en) * | 1974-06-17 | 1975-12-30 | Juan R Serur | Fluid flow regulator |
| DE2509444A1 (en) * | 1975-03-05 | 1976-09-16 | Kiehl Paul | Safety type infusion device - has automatic stopping system to prevent or hinder ingress of air into the infusion hose |
| CN2812945Y (en) * | 2005-07-30 | 2006-09-06 | 艾艳 | Infusion device |
| CN102553014A (en) * | 2011-11-28 | 2012-07-11 | 上海宝舜医疗器械有限公司 | Automatic non-return drip chamber with automatic exhaust function |
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| Publication number | Publication date |
|---|---|
| CN106860948A (en) | 2017-06-20 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shi Junbin Inventor after: Yan Tingting Inventor before: Yan Tingting |
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| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200113 Address after: 273500 Shandong city of Jining province Zoucheng City 1000 Road No. 59 people's Hospital of Zoucheng City Applicant after: Shi Junbin Address before: 075100 Zhangjiakou province Hebei city Xuanhua District South Street Yi Sheng Gong court Shunxin Department Applicant before: Yan Tingting |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200211 Termination date: 20200221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |