CN210904364U - Novel negative pressure transfusion device - Google Patents
Novel negative pressure transfusion device Download PDFInfo
- Publication number
- CN210904364U CN210904364U CN201920380954.8U CN201920380954U CN210904364U CN 210904364 U CN210904364 U CN 210904364U CN 201920380954 U CN201920380954 U CN 201920380954U CN 210904364 U CN210904364 U CN 210904364U
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- negative pressure
- infusion
- regulator
- piston
- piston cylinder
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Abstract
The utility model discloses a novel negative pressure infusion set, including infusion bottle needle, air cleaner, burette, transfer line, syringe needle joint, first infusion regulator and syringe needle, be equipped with second infusion regulator on the transfer line, be equipped with the negative pressure interface between second infusion regulator and the first infusion regulator, negative pressure interface connection negative pressure device, negative pressure device include piston cylinder, piston rod and piston, and the piston connection piston rod is established in the piston cylinder, is equipped with the scale on the piston cylinder. The utility model utilizes the principle of negative pressure suction, and the piston in the second transfusion regulator and the negative pressure device can draw and contract in the piston cylinder, so as to lead the negative pressure in the transfusion tube to control the degree of the negative pressure through the scale on the piston cylinder, thereby using different negative pressure values aiming at different people; the utility model discloses simple structure, it is with low costs, the feasibility is high.
Description
Technical Field
The utility model relates to a medical appliance, in particular to a novel negative pressure transfusion device.
Background
A medical disposable infusion set is one of medical appliances commonly used at present, and the basic structure of the medical disposable infusion set comprises an infusion bottle needle, an air filter, a dropper, an infusion tube, a flow regulator and an injection needle head, when the medical disposable infusion set is used for puncturing patients with poor blood circulation, such as old patients, children and the like, the puncture is difficult to return blood, the blood return amount is small, whether the needle head enters the vein is difficult to confirm, the success rate is low, the pain of the patients is aggravated, and the pressure burden can be increased by nurses when the puncture fails. In utility model patent No. CN201320049233.1, a double-regulation type siphon disposable infusion apparatus comprises an infusion bottle needle, an air filter, a dropper, an infusion tube, a first flow regulator and an injection needle, wherein the infusion tube is additionally provided with a second flow regulator. The second flow regulator is added, and negative pressure is formed through the second flow regulator infusion tube, although the operation is simple, the numerical value of the negative pressure cannot be controlled, and the negative pressure can not be universally adapted due to different human body bearing degrees.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a novel negative pressure transfusion device which can effectively solve the problems that the conventional transfusion device in the background technology has low puncture success rate, aggravates the pain of a patient and increases the burden of a nurse; can be suitable for different crowds.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a novel negative pressure infusion set, includes infusion bottle needle, air cleaner, burette, transfer line, syringe needle joint, first infusion regulator and syringe needle, is equipped with second infusion regulator on the transfer line, is equipped with the negative pressure interface between second infusion regulator and the first infusion regulator, and negative pressure interface connection negative pressure device, negative pressure device include piston cylinder, piston rod and piston, and the piston connection piston rod is established in the piston cylinder, is equipped with the scale on the piston cylinder.
Preferably, the negative pressure interface is provided with a groove, the piston cylinder is provided with an elastic belt, and the elastic belt is sleeved on the groove to ensure the airtightness.
Preferably, the elastic band is sleeved with a tightening band outside the groove for fixing the position of the elastic band and preventing the elastic band from loosening to cause air flow.
Preferably, the angle between the negative pressure interface and the infusion tube is 45-60 degrees upwards, liquid in the infusion tube is prevented from flowing to the negative pressure interface, and gas can be smoothly circulated during negative pressure.
Preferably, the distance between the first transfusion regulator and the dropper is 5-7cm, which is beneficial to controlling the low falling speed of the liquid in the dropper pipe.
Preferably, the second transfusion regulator is 5-7cm away from the interface of the injection needle and is used for controlling the stability of the air pressure in the transfusion tube.
Compared with the prior art, the utility model discloses the beneficial effect who produces is: the utility model utilizes the principle of negative pressure suction, and the piston in the second transfusion regulator and the negative pressure device can draw and contract in the piston cylinder, so as to lead the negative pressure in the transfusion tube to control the degree of the negative pressure through the scale on the piston cylinder, thereby using different negative pressure values aiming at different people; the utility model discloses simple structure, it is with low costs, the feasibility is high.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an enlarged view of a in fig. 1 according to the present invention.
In the figure: 1. an injection needle; 2. an injection needle head connector; 3. a second infusion regulator; 4. a first infusion regulator; 5. a transfusion tube; 6. a dropper; 7. a transfusion bottle needle; 8. an air filter; 9. a negative pressure interface; 10. a piston; 11. a piston cylinder; 12. a piston rod; 13. pressing the belt; 14. a groove; 15. an elastic band; 16. a dial.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1-2, a novel negative pressure infusion device comprises an infusion bottle needle 7, an air filter 8, a dropper 6, an infusion tube 5, an injection needle joint 2, a first infusion regulator 4 and an injection needle 1, wherein a second infusion regulator 3 is arranged on the infusion tube 5, a negative pressure interface 9 is arranged between the second infusion regulator 3 and the first infusion regulator 4, the negative pressure interface 9 is connected with a negative pressure device, the negative pressure device comprises a piston cylinder 11, a piston rod 12 and a piston 10, the piston 10 is connected with the piston rod 12 and is arranged in the piston cylinder 11, and a dial 16 is arranged on the piston cylinder 11.
In this embodiment, a groove 14 is formed at the negative pressure port 9, an elastic band 15 is arranged on the piston cylinder 11, and the elastic band 15 is sleeved on the groove 14 to ensure airtightness.
In this embodiment, the elastic band 15 is sleeved with the pressing band 13 outside the groove 14 for fixing the position of the elastic band 15 and preventing the elastic band from loosening to cause air flow.
In this embodiment, the angle between the negative pressure port 9 and the infusion tube 5 is 45 ° to 60 ° upward, which prevents the liquid in the infusion tube 5 from flowing to the negative pressure port 9, and allows the gas to flow more smoothly during negative pressure.
In the embodiment, the distance between the first transfusion regulator 4 and the dropper 9 is 5-7cm, which is beneficial to controlling the falling speed of the liquid in the dropper pipe.
In the embodiment, the second transfusion regulator 3 is 5-7cm away from the interface of the injection needle 2 and is used for controlling the stability of the air pressure in the transfusion tube.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (5)
1. The utility model provides a novel negative pressure infusion device, includes infusion bottle needle, air cleaner, burette, transfer line, syringe needle joint, first infusion regulator and syringe needle, its characterized in that: the infusion tube is provided with a second infusion regulator, a negative pressure interface is arranged between the second infusion regulator and the first infusion regulator, the negative pressure interface is connected with a negative pressure device, the negative pressure device comprises a piston cylinder, a piston rod and a piston, the piston is connected with the piston rod, the piston cylinder is internally provided with scales, the negative pressure interface is provided with a groove, and the piston cylinder is provided with an elastic band.
2. The novel negative pressure infusion device of claim 1, wherein: the elastic belt is sleeved with a pressing belt at the outer side of the groove.
3. The novel negative pressure infusion device of claim 1, wherein: the upward angle between the negative pressure interface and the infusion tube is 45-60 degrees.
4. The novel negative pressure infusion device of claim 1, wherein: the distance between the first transfusion regulator and the dropper is 5-7 cm.
5. The novel negative pressure infusion device of claim 1, wherein: and the second transfusion regulator is 5-7cm away from the interface of the injection needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920380954.8U CN210904364U (en) | 2019-03-21 | 2019-03-21 | Novel negative pressure transfusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920380954.8U CN210904364U (en) | 2019-03-21 | 2019-03-21 | Novel negative pressure transfusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210904364U true CN210904364U (en) | 2020-07-03 |
Family
ID=71359375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920380954.8U Expired - Fee Related CN210904364U (en) | 2019-03-21 | 2019-03-21 | Novel negative pressure transfusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210904364U (en) |
-
2019
- 2019-03-21 CN CN201920380954.8U patent/CN210904364U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |