CN101229403B - Murphy's burette - Google Patents
Murphy's burette Download PDFInfo
- Publication number
- CN101229403B CN101229403B CN2008103004066A CN200810300406A CN101229403B CN 101229403 B CN101229403 B CN 101229403B CN 2008103004066 A CN2008103004066 A CN 2008103004066A CN 200810300406 A CN200810300406 A CN 200810300406A CN 101229403 B CN101229403 B CN 101229403B
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- valve plug
- murphy
- microchannel
- seal
- outlet
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Abstract
The invention discloses a Murphy dropper, which relates to the technical field of the medical apparatus and instruments. The Murphy dropper comprises a tube body with a fluid inlet and a fluid outlet and a floating valve plug, wherein, the floating valve plug is provided with a microfluidic channel, an inlet and an outlet of which are respectively positioned at the upper part and the lower part of a sealing section under the enclosure of the floating valve plug and a valve seat inside the tube body. Compared with the prior art, the Murphy dropper of the invention can not only prevent air from flowing into a human body for a relatively long time after the fluid in an infusion bottle is dripped out, but also automatically reduce the speed of infusion dripping so as to keep the transfusion smooth and effectively prevent blockage of the syringe tube due to reverse flow of venous blood.
Description
Technical field
The present invention relates to the medical equipment technical field, especially a kind of medium is imported the intravital apparatus of people in the mode of intravenous drip.
Background technology
Existing Murphy's burette comprises the body that is provided with inlet and liquid outlet, liquid enters in the body from inlet, directly drip again from liquid outlet, in the intravenous drip process, when liquid output finishes in the bottle, air can enter in the infusion pipeline, if at this moment patient, medical personnel in time do not find or handle, adverse consequences will take place: the one, if injection inlet is at vein negative pressure section, the air that enters infusion pipeline so will be inhaled in the vein blood vessel, and this result can work the mischief to human body; The 2nd, if injection inlet is positioned at vein malleation section, when the decline of liquid medicine liquid level reaches the pressure balance of intravenous injection porch, liquid is not promptly injecting human body in the tube for transfusion, under this situation, because factors such as diffusion between liquid medicine and the blood or position of human body change cause the fluctuation of blood pressure, the capital is refluxed the blood in the blood vessel and is entered in the injection needle, if at this moment untimely processing, blood in the intravasation thromboembolism injection needle that will condense, this result causes continuing replenishing or the injection of changing dressings, renew transfusion and must change needle tubing and position inserting needle again, this brings more misery also to bring more work and waste to medical personnel to patient, very difficult for this repetition inserting needle of the tiny patient of some blood vessels, and meet anxious heavy patient, more can delay treatment opportunity.In addition, in the pipeline under the air admission Murphy's burette delivery outlet, even dosing in time, the transfusion of changing dressings also needs to carry out bleeding, increase nursing staff work load.In order to prevent the tube for transfusion under the air admission Murphy's burette in the infusion process, people have done a large amount of research and improvement, wherein, it is that the unsteady valve plug of proportion less than water is housed in the body of Murphy's burette that a kind of scheme is arranged, when the liquid in the Murphy's burette flows to end, valve plug is along with flow direction drops to liquid outlet automatically, blocked liquid outlet, can stop gas to enter in the tube for transfusion under the Murphy's burette, but this scheme still can not solve the problems referred to above of blood backflow thromboembolism needle tubing in the blood vessel.
Summary of the invention
The problem to be solved in the present invention provides and not only can prevent the air admission human body in a long time after a kind of fluid drips in infusion bottle is use up and can prevent the anti-Murphy's burette that stops up syringe needle that flows of venous blood.
In order to address the above problem, the technical solution adopted in the present invention is: comprise the body that is provided with inlet and liquid outlet and the valve plug that floats, described unsteady valve plug is provided with microchannel, and the import of described microchannel and outlet are located at the bottom and upper segment of described unsteady valve plug and the seal section of the intravital valve seat of described pipe under closure state respectively.
In the such scheme, described valve seat can be arranged on that described pipe is intravital to have a lural dividing plate, and described valve seat is divided into two chambers up and down with described body, also can be the funnelform described liquid outlet of described body; The part that described unsteady valve plug is used to seal can be bullet, and described microchannel can be provided in a side of the intravital through hole of described taper also can be provided in a side of the outer groove of described bullet; The part that described unsteady valve plug is used to seal can be cylindrical body, and described microchannel can be provided in a side of the intravital through hole of described cylindricality, also can be provided in a side of the outer groove of described cylindrical body; The part that described valve plug is used to seal can be spheroplast, and described microchannel can be provided in a side of the intravital through hole of described sphere, also can be provided in a side of the groove outside the described spheroplast, and the outlet of described microchannel can also be with small tubes.
Owing to adopted technique scheme, the present invention compared with prior art, the beneficial effect that has is: the fluid drips in infusion bottle back valve plug is to the greatest extent managed intravital liquid level and is descended and enter the valve seat mouth along with this, engage with the valve seat mouth, liquid can only flow out by the microchannel of valve plug like this, the transfusion speed of liquid in the Murphy's burette that slowed down, and it is unobstructed to keep transfusion, so not only delay the time of air admission human body, and can effectively prevent the counter problem of stopping up syringe needle that flows of venous blood.
Description of drawings
Fig. 1 is that the embodiment of the invention 1 valve plug under transfusion state floats over the structural representation on the liquid level.
Fig. 2 is the structural representation when executing example 1 valve plug and engaging with the valve seat mouth.
Fig. 3 is the A place enlarged drawing of Fig. 1.
Fig. 4 is that the embodiment of the invention 2 valve plug under transfusion state floats over the structural representation on the liquid level.
Fig. 5 is the structural representation when executing example 2 valve plugs and engaging with the valve seat mouth.
The specific embodiment
Below in conjunction with the accompanying drawing example, structure of the present invention is described in further detail:
As Fig. 1, Fig. 2, embodiment 1 shown in Figure 3, the present invention includes the body 3 that is provided with inlet 1 and liquid outlet 2 and the valve plug 4 that floats, be provided with in the body 3 and unsteady valve plug 4 corresponding valve seats 5, this valve seat is divided into two chamber 3-1,3-2 up and down with body 3, the part that valve plug 4 is used to seal is a bullet, is provided with microchannel 9 in this bullet, when 5 mouthfuls of valve plug 4 and valve seats are closed, the import 7 of microchannel 9 is communicated with two chamber 3-1,3-2 up and down respectively with outlet 8, and outlet 8 is with small tubes 6.
During upper chamber of the present invention full of liquid, by the buoyancy of water effect, valve plug is toward come-up, and liquid flows into lower chambers from the valve seat mouth; When the fluid drips in the infusion bottle is most, the liquid of this body upper chamber slowly reduces, valve plug is also and then toward descending, until entering the valve seat mouth, engage with the valve seat mouth, the remaining liquid of upper chamber enters from the belled small tubes of outlet of bullet lower surface microchannel from the import of the microchannel of valve plug lower taper body side surface again and slowly drips, only dripping 3-5 in one minute drips, the flowing velocity of liquid has so just slowed down, it is unobstructed to keep simultaneously transfusion again, not only effectively delay the time of air admission human body, and can effectively prevent the anti-obstruction syringe needle that flows of venous blood.When next bottle of continued access infusion bottle, after liquid drips full dropper upper chamber again, push the following outer wall of float of upper chamber's valve plug with thumb and forefinger, being stressed effect, valve plug is up squeezed, and breaks away from bell mouth, and transfusion speed recovers normally.
As Fig. 4, embodiment 2 shown in Figure 5, the present invention includes and comprise the body 103 that is provided with inlet 101 and liquid outlet 102 and the valve plug 104 that floats, the part that valve plug 104 is used to seal is a bullet, be provided with microchannel 109 in this bullet, this microchannel is provided with import 107 and outlet 108, be with small tubes 106 under this outlet, valve seat in the body 103 is the liquid outlet 102 of body, this liquid outlet is funnel-form, when valve plug 104 enters liquid outlet 102, when engaging with liquid outlet, the tube for transfusion under the import of microchannel 109 and outlet difference communicating pipe intracoelomic cavity and the body.
Claims (10)
1. Murphy's burette, comprise the body that is provided with inlet and liquid outlet and the valve plug that floats, it is characterized in that: described unsteady valve plug is provided with microchannel, and the import of described microchannel and outlet are located at the bottom and upper segment of described unsteady valve plug and the seal section of the intravital valve seat of described pipe under closure state respectively.
2. Murphy's burette according to claim 1 is characterized in that: described valve seat is arranged on that described pipe is intravital to have a lural dividing plate, and described valve seat is divided into two chambers up and down with described body.
3. Murphy's burette according to claim 1 is characterized in that: described valve seat is the funnelform described liquid outlet of described body.
4. according to claim 1 or 2 or 3 described Murphy's burettes, it is characterized in that: the part that described unsteady valve plug is used to seal is a bullet, and described microchannel is provided in a side of the intravital through hole of described taper.
5. according to claim 1 or 2 or 3 described Murphy's burettes, it is characterized in that: the part that described unsteady valve plug is used to seal is a bullet, and described microchannel is provided in a side of the outer groove of described bullet.
6. according to claim 1 or 2 or 3 described Murphy's burettes, it is characterized in that: the part that described unsteady valve plug is used to seal is a cylindrical body, and described microchannel is provided in a side of the intravital through hole of described cylindricality.
7. according to claim 1 or 2 or 3 described Murphy's burettes, it is characterized in that: the part that described unsteady valve plug is used to seal is a cylindrical body, and described microchannel is provided in a side of the outer groove of described cylindrical body.
8. according to claim 1 or 2 or 3 described Murphy's burettes, it is characterized in that: the part that described unsteady valve plug is used to seal is a spheroplast, and described microchannel is provided in a side of the intravital through hole of described sphere.
9. according to claim 1 or 2 or 3 described Murphy's burettes, it is characterized in that: the part that described unsteady valve plug is used to seal is a spheroplast, and described microchannel is provided in a side of the groove outside the described spheroplast.
10. Murphy's burette according to claim 4 is characterized in that: the outlet of described microchannel is with small tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103004066A CN101229403B (en) | 2008-02-27 | 2008-02-27 | Murphy's burette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103004066A CN101229403B (en) | 2008-02-27 | 2008-02-27 | Murphy's burette |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101229403A CN101229403A (en) | 2008-07-30 |
| CN101229403B true CN101229403B (en) | 2010-06-02 |
Family
ID=39896411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008103004066A Expired - Fee Related CN101229403B (en) | 2008-02-27 | 2008-02-27 | Murphy's burette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101229403B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641533B (en) * | 2012-04-10 | 2015-03-18 | 林建雄 | Device used for filtering infusion set liquid and preventing backflow |
| WO2016082724A1 (en) * | 2014-11-24 | 2016-06-02 | 胡绍勤 | Automatic fluid discharge and drainage device |
| CN114242399B (en) * | 2021-12-20 | 2024-04-30 | 湖北鄂电德力电气有限公司 | Oil immersed transformer for 10KV oil pumping when meeting fire |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3776229A (en) * | 1971-11-26 | 1973-12-04 | American Hospital Supply Corp | Medical liquid administration set for rate or volume delivery |
| US5423346A (en) * | 1994-03-03 | 1995-06-13 | Ivac Corporation | Fluid container shut off valve |
| CN1434731A (en) * | 2000-05-25 | 2003-08-06 | 马金克技术(控股)有限公司 | Infusion of liquids into the human or animal body |
| CN2732261Y (en) * | 2004-10-25 | 2005-10-12 | 陈庆强 | Moffes infusion tube with guiding means and cap-skirt type stopping ball valve |
| CN200954292Y (en) * | 2006-08-30 | 2007-10-03 | 丁小敏 | Disposable self-controlled transfusion device |
| CN201200682Y (en) * | 2008-02-26 | 2009-03-04 | 龚明秀 | Murphy's dropper |
-
2008
- 2008-02-27 CN CN2008103004066A patent/CN101229403B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3776229A (en) * | 1971-11-26 | 1973-12-04 | American Hospital Supply Corp | Medical liquid administration set for rate or volume delivery |
| US5423346A (en) * | 1994-03-03 | 1995-06-13 | Ivac Corporation | Fluid container shut off valve |
| CN1434731A (en) * | 2000-05-25 | 2003-08-06 | 马金克技术(控股)有限公司 | Infusion of liquids into the human or animal body |
| CN2732261Y (en) * | 2004-10-25 | 2005-10-12 | 陈庆强 | Moffes infusion tube with guiding means and cap-skirt type stopping ball valve |
| CN200954292Y (en) * | 2006-08-30 | 2007-10-03 | 丁小敏 | Disposable self-controlled transfusion device |
| CN201200682Y (en) * | 2008-02-26 | 2009-03-04 | 龚明秀 | Murphy's dropper |
Non-Patent Citations (1)
| Title |
|---|
| 说明书第1页第6行至第2页第27行、附图1-2. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101229403A (en) | 2008-07-30 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20110227 |