CN111569183A - Infusion apparatus with air-flow-preventing and blood-return functions for department of pediatrics - Google Patents
Infusion apparatus with air-flow-preventing and blood-return functions for department of pediatrics Download PDFInfo
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- CN111569183A CN111569183A CN202010406520.8A CN202010406520A CN111569183A CN 111569183 A CN111569183 A CN 111569183A CN 202010406520 A CN202010406520 A CN 202010406520A CN 111569183 A CN111569183 A CN 111569183A
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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
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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
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an infusion apparatus with the functions of preventing empty flow and returning blood for pediatrics, which comprises a drip cup, a flow regulator, a puncture head and an injection needle, wherein the drip cup is provided with a needle hole; the upper end of the drip cup is communicated with the puncture head through an upper conduit, and the lower end of the drip cup is communicated with the injection needle through a lower conduit; the outer wall of the lower guide pipe is sleeved with a flow regulator; a one-way valve for preventing air flowing and blood returning is arranged in the drip cup, and the lower catheter is coiled into a disc shape through a coil pipe structure; the drip cup comprises a lower cup barrel and an upper cup barrel sleeved on the outer wall of the upper end of the lower cup barrel; the one-way valve comprises a valve seat which is connected with the inner wall of the lower pot cylinder in a sliding way, a valve body which is detachably arranged at the lower end of the valve seat, a valve core which is arranged in the valve body in a sliding way and a reset mechanism which is arranged between the valve body and the valve core and is convenient for resetting the valve core. According to the invention, the one-way valve is arranged in the drip cup, so that the problem of leakage of the sealing part of the ball float valve caused by fluctuation of blood pressure of a human body in the prior art can be effectively solved, and emptying and blood return can be better prevented.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an infusion apparatus with functions of preventing empty flow and returning blood for pediatrics.
Background
The infusion apparatus is a common medical consumable, and a channel between a vein and liquid medicine is established for intravenous infusion after aseptic treatment; the structure of the device generally comprises an injection needle, an infusion hose, a flow rate regulator, a drip cup, a puncture head, an exhaust pipe and the like; in order to prevent blood from flowing back into the infusion tube and causing panic of children during transfusion of children, a structure for preventing blood from flowing back is generally arranged in the infusion set.
At present, the patent literature in the prior art shows that a drip cup adopts a structure for preventing air flowing and blood returning; the prior art adopts a float valve form to avoid the phenomenon of blood return; the prior art infusion set also has the following defects and shortcomings: the transfusion tube is too long, and the winding phenomenon is easy to occur in the use process; the ball-cock assembly structure is sealed through the gravity of ball-cock assembly self, and the weight of ball-cock assembly can not make too heavy, and too heavy also can not float and open, and when human blood pressure was undulant, it can cause the sealed department of ball-cock assembly to leak to make prevent blood return effect failure, then make in the downcomer of blood backward flow.
Disclosure of Invention
In view of this, the present invention provides an infusion apparatus with empty flow and blood return prevention functions for pediatrics, which can effectively solve the problem of leakage of a float valve seal when the blood pressure of a human body fluctuates in the prior art by providing a one-way valve in a drip cup, and can better prevent empty flow and blood return.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an infusion apparatus with the functions of preventing empty flow and returning blood for pediatrics comprises a drip cup, a flow regulator, a puncture head and an injection needle; the upper end of the drip cup is communicated with the puncture head through an upper conduit, and the lower end of the drip cup is communicated with the injection needle through a lower conduit; the outer wall of the lower guide pipe is sleeved with the flow regulator; the drip cup is internally provided with a one-way valve for preventing air flowing and blood returning, and the lower conduit is coiled into a disc shape through a coil pipe structure; the drip cup comprises a lower cup barrel and an upper cup barrel sleeved on the outer wall of the upper end of the lower cup barrel; the one-way valve comprises a valve seat which is connected with the inner wall of the lower pot cylinder in a sliding way, a valve body which is detachably arranged at the lower end of the valve seat, a valve core which is arranged in the valve body in a sliding way and a reset mechanism which is arranged between the valve body and the valve core and is convenient for resetting the valve core.
Further, the valve seat comprises a seat plate and a threaded sleeve, wherein the seat plate is integrally arranged, and the threaded sleeve is arranged at the lower end of the seat plate and is used for connecting the valve body; the core part of bedplate from the top down has set gradually first through-hole and taper hole, outer wall are provided with the first seal ring groove of being convenient for place first sealing washer.
Further, the valve core comprises a conical core part which is integrally arranged and matched with the valve seat, and a guide part which is arranged at the lower end of the conical core part and is connected with the valve body in a sliding way.
Further, a second sealing ring groove for placing a second sealing ring is formed in the conical wall of the conical core part; a plurality of second through holes are formed in the periphery of the guide portion, and a first spherical groove convenient to connect the reset mechanism is formed in the lower end of the guide portion.
Furthermore, the valve body is a cylinder with an opening at the upper end, the outer wall of the upper end of the cylinder is provided with a first external thread which is convenient to be connected with the valve seat, the middle part of the bottom of the cylinder is provided with an annular boss which is convenient to be connected with the reset mechanism, and the periphery of the bottom of the cylinder is provided with a plurality of third through holes; a second spherical groove is formed in the upper end face of the annular boss; and the cylinder body is also sleeved with a locking nut which is convenient for locking the valve body on the valve seat.
Further, the coil pipe structure comprises a lower clamp plate and an upper clamp plate adhered to the lower clamp plate, a plurality of semicircular grooves convenient for accommodating a lower conduit are formed in the lower clamp plate and the upper clamp plate in a one-to-one correspondence mode, and a plurality of strip-shaped grooves convenient for separating the lower clamp plate from the upper clamp plate are formed in the lower clamp plate and the upper clamp plate between the two semicircular grooves in a one-to-one correspondence mode; the upper end of the lower clamping plate is provided with a hook convenient for fixing the disc tube structure.
Further, the lower extreme of downcomer is provided with and is used for connecting the transition joint of syringe needle, the syringe needle pass through the needle takeover with the transition joint links to each other, the outer wall of the lower part of puncture head is provided with the blast pipe.
Further, the inner wall of the upper end of the lower pot barrel is provided with a first annular groove which is convenient for containing the valve seat, the lower end of the upper pot barrel is provided with a second annular groove which is convenient for inserting the lower pot barrel, and the top end of the second annular groove is provided with a limiting ring which is convenient for limiting the valve seat.
Further, the reset mechanism is a hollow spherical elastic rubber air bag.
The invention has the beneficial effects that: the one-way valve is arranged in the drip cup, so that the problem that the sealing part of the ball float valve is leaked when the blood pressure of a human body fluctuates in the prior art can be effectively solved, and the air flowing and blood returning can be better prevented; through setting up the coil pipe structure, be convenient for with orderly the accomodating of downcomer, place the length of downcomer as required.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the drip chamber of the present invention;
fig. 3 is a schematic structural view of the check valve of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be further described with reference to the following examples.
Referring to FIGS. 1-3: an infusion apparatus with the functions of preventing empty flow and returning blood for pediatrics comprises a drip cup 1, a flow regulator 2, a puncture head 3 and an injection needle 4; the upper end of the drip cup 1 is communicated with the puncture head 3 through an upper conduit 5, and the lower end of the drip cup is communicated with the injection needle 4 through a lower conduit 6; the outer wall of the lower guide pipe 6 is sleeved with the flow regulator 2; the drip cup 1 is internally provided with a check valve 7 for preventing air flowing and blood returning, and the lower conduit 6 is coiled into a disc shape through a coil pipe structure 8; the drip cup 1 comprises a lower cup barrel 11 and an upper cup barrel 12 sleeved on the outer wall of the upper end of the lower cup barrel 11; the one-way valve 7 comprises a valve seat 71 slidably connected with the inner wall of the lower pot 11, a valve body 72 detachably arranged at the lower end of the valve seat 71, a valve core 73 slidably arranged in the valve body 72, and a reset mechanism 74 arranged between the valve body 72 and the valve core 73 and facilitating the reset of the valve core 73; the reset mechanism is a hollow spherical elastic rubber air bag; when liquid flowing down from an infusion bottle flows into a drip cup on a valve seat, the valve core is pushed to compress the air bag by the gravity of the liquid after reaching a certain height of the liquid, so that the valve core moves downwards, and the liquid flows downwards through a gap between the valve seat and the valve core; when the height of the liquid on the valve seat is smaller than a certain height, the valve core moves upwards under the action of the air bag, so that the valve core is attached to the valve seat, a gap between the valve core and the valve seat is closed, and a flow channel of the liquid is cut off; the valve core is attached to the lower end of the valve seat through the acting force of the air bag, and when the blood pressure of a human body fluctuates, the valve core is always attached to the lower end of the valve seat through the acting force of the air bag, so that the problem of leakage of a sealing part of the ball float valve caused by the fluctuation of the blood pressure of the human body in the prior art can be effectively solved, and air flowing and blood returning can be better prevented; through setting up the coil pipe structure, be convenient for with orderly the accomodating of downcomer, place the length of downcomer as required.
Further, the valve seat 71 includes an integrally provided seat plate and a threaded sleeve provided at a lower end of the seat plate for connecting the valve body 72; the core part of the seat plate is sequentially provided with a first through hole and a taper hole from top to bottom, and the outer wall of the seat plate is provided with a first sealing ring groove convenient for placing a first sealing ring 75; through setting up first sealing washer, cut off the clearance passageway between the outer wall of disk seat and the inner wall of a lower pot section of thick bamboo.
Further, the valve core 73 comprises a conical core part which is integrally arranged and matched with the valve seat 71, and a guide part which is arranged at the lower end of the conical core part and is connected with the valve body 72 in a sliding way, wherein the outer wall of the guide part is connected with the inner wall of the valve seat in a sliding way.
Further, a second sealing ring groove for placing a second sealing ring 76 is arranged on the conical wall of the conical core part; the second sealing ring is arranged, so that the sealing between the valve core and the valve seat is more reliable; a plurality of second through holes are formed in the periphery of the guide portion, and a first spherical groove convenient to connect the reset mechanism is formed in the lower end of the guide portion.
Further, the valve body is a cylinder with an opening at the upper end, the outer wall of the upper end of the cylinder is provided with a first external thread which is convenient to be connected with the valve seat, the middle part of the bottom of the cylinder is provided with an annular boss which is convenient to be connected with the resetting mechanism 74, and the periphery of the bottom of the cylinder is provided with a plurality of third through holes; a second spherical groove is formed in the upper end face of the annular boss; the cylinder body is also sleeved with a locking nut 77 which is convenient for locking the valve body on the valve seat; through setting up lock nut, be convenient for lock the valve body of the check valve who adjusts on the disk seat.
Further, the coil pipe structure 8 comprises a lower clamp plate 81 and an upper clamp plate 82 adhered to the lower clamp plate 81, a plurality of semicircular grooves convenient for accommodating lower pipes are correspondingly arranged on the lower clamp plate 81 and the upper clamp plate 82 one by one, and a plurality of strip-shaped grooves convenient for separating the lower clamp plate 81 from the upper clamp plate 82 are correspondingly arranged between the two semicircular grooves on the lower clamp plate 81 and the upper clamp plate 82 one by one; the upper end of the lower clamping plate 81 is provided with a hook convenient for fixing the disc tube structure 8; the hanger is arranged to facilitate hanging the rolled down tube on the infusion support and to place the length of the down tube according to the requirement.
Further, the lower end of the downcomer 6 is provided with a transition joint 9 for connecting the injection needle 4, the injection needle 4 is connected with the transition joint 9 through a needle connecting pipe, and the outer wall of the lower part of the puncture head 3 is provided with an exhaust pipe 31.
Further, the inner wall of the upper end of the lower pot barrel 11 is provided with a first annular groove convenient for containing the valve seat 71, the lower end of the upper pot barrel 12 is provided with a second annular groove convenient for inserting the lower pot barrel 11, and the top end of the second annular groove is provided with a limiting ring convenient for limiting the valve seat 71.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (9)
1. An infusion apparatus with the functions of preventing empty flow and returning blood for pediatrics comprises a drip cup, a flow regulator, a puncture head and an injection needle; the upper end of the drip cup is communicated with the puncture head through an upper conduit, and the lower end of the drip cup is communicated with the injection needle through a lower conduit; the outer wall of the lower guide pipe is sleeved with the flow regulator; the method is characterized in that: the drip cup is internally provided with a one-way valve for preventing air flowing and blood returning, and the lower conduit is coiled into a disc shape through a coil pipe structure; the drip cup comprises a lower cup barrel and an upper cup barrel sleeved on the outer wall of the upper end of the lower cup barrel; the one-way valve comprises a valve seat which is connected with the inner wall of the lower pot cylinder in a sliding way, a valve body which is detachably arranged at the lower end of the valve seat, a valve core which is arranged in the valve body in a sliding way and a reset mechanism which is arranged between the valve body and the valve core and is convenient for resetting the valve core.
2. The infusion set with the functions of empty flowing prevention and blood return for the department of pediatrics as claimed in claim 1, wherein said valve seat comprises a seat plate and a threaded sleeve, wherein the seat plate is integrally arranged with the threaded sleeve is arranged at the lower end of the seat plate and used for connecting the valve body; the core part of bedplate from the top down has set gradually first through-hole and taper hole, outer wall are provided with the first seal ring groove of being convenient for place first sealing washer.
3. The infusion set with the functions of empty flow prevention and blood return for the department of pediatrics as claimed in claim 1, wherein said valve core includes a conical core portion integrally formed to fit with said valve seat and a guide portion disposed at a lower end of said conical core portion to be slidably coupled to said valve body.
4. The infusion apparatus with the functions of preventing empty flow and returning blood for the department of pediatrics as claimed in claim 3, wherein a second sealing ring groove for placing a second sealing ring is formed on the conical wall of the conical core portion; a plurality of second through holes are formed in the periphery of the guide portion, and a first spherical groove convenient to connect the reset mechanism is formed in the lower end of the guide portion.
5. The infusion apparatus with the functions of empty flowing prevention and blood return for the department of pediatrics as claimed in claim 1, wherein the valve body is a cylinder with an opening at the upper end, the outer wall of the upper end of the cylinder is provided with a first external thread convenient for being connected with the valve seat, the middle part of the bottom is provided with an annular boss convenient for being connected with the reset mechanism, and the periphery of the bottom is provided with a plurality of third through holes; a second spherical groove is formed in the upper end face of the annular boss; and the cylinder body is also sleeved with a locking nut which is convenient for locking the valve body on the valve seat.
6. The infusion apparatus with the functions of empty flowing prevention and blood return for the department of pediatrics as claimed in claim 1, wherein the coil structure comprises a lower clamp plate and an upper clamp plate adhered to the lower clamp plate, a plurality of semi-circular grooves convenient for accommodating a lower catheter are arranged on the lower clamp plate and the upper clamp plate in a one-to-one correspondence manner, and a plurality of strip-shaped grooves convenient for separating the lower clamp plate from the upper clamp plate are arranged between the two semi-circular grooves on the lower clamp plate and the upper clamp plate in a one-to-one correspondence manner; the upper end of the lower clamping plate is provided with a hook convenient for fixing the disc tube structure.
7. The infusion apparatus with the functions of preventing air leakage and blood return for the department of pediatrics as claimed in claim 1, wherein a transition joint for connecting the injection needle is arranged at the lower end of the lower catheter, the injection needle is connected with the transition joint through a needle connecting tube, and an exhaust pipe is arranged on the outer wall of the lower portion of the puncture head.
8. The infusion apparatus with the functions of preventing air flow and blood return for pediatrics as claimed in claim 1, wherein a first ring groove for accommodating the valve seat is formed in an inner wall of an upper end of the lower pot cylinder, a second ring groove for allowing the lower pot cylinder to be inserted into is formed in a lower end of the upper pot cylinder, and a limiting ring for limiting the valve seat is arranged at a top end of the second ring groove.
9. The infusion set with the functions of air leakage prevention and blood return for the department of pediatrics as claimed in claim 1, wherein the reset mechanism is a hollow spherical elastic rubber air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010406520.8A CN111569183A (en) | 2020-05-14 | 2020-05-14 | Infusion apparatus with air-flow-preventing and blood-return functions for department of pediatrics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010406520.8A CN111569183A (en) | 2020-05-14 | 2020-05-14 | Infusion apparatus with air-flow-preventing and blood-return functions for department of pediatrics |
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| Publication Number | Publication Date |
|---|---|
| CN111569183A true CN111569183A (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010406520.8A Pending CN111569183A (en) | 2020-05-14 | 2020-05-14 | Infusion apparatus with air-flow-preventing and blood-return functions for department of pediatrics |
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| CN (1) | CN111569183A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040102738A1 (en) * | 2002-11-26 | 2004-05-27 | Medical Ventures, L.L.C. | Pressure actuated flow control valve |
| CN2730399Y (en) * | 2004-09-02 | 2005-10-05 | 上海力申科学仪器有限公司 | Zero-starting, single-direction gas feeding device used for anaesthesia apparatus |
| CN101648049A (en) * | 2009-09-10 | 2010-02-17 | 威海洁瑞医用制品有限公司 | Medical forward flow connection device |
| CN202751639U (en) * | 2012-06-08 | 2013-02-27 | 苏州林华医疗器械有限公司 | Positive-pressure and pin-free connection piece |
| CN202982926U (en) * | 2012-12-05 | 2013-06-12 | 山东威高集团医用高分子制品股份有限公司 | Transfusion one-way valve |
| CN103212154A (en) * | 2012-01-21 | 2013-07-24 | 美昕医疗器械（上海）有限公司 | One-way positive valve |
| CN204684180U (en) * | 2015-06-05 | 2015-10-07 | 四川科伦药业股份有限公司 | anti-reflux infusion bag interface combined plug |
| CN204766818U (en) * | 2015-07-06 | 2015-11-18 | 南京市胸科医院 | Clinical transfer line fixation clamp of using |
| CN205145387U (en) * | 2015-10-21 | 2016-04-13 | 深圳市安特高科实业有限公司 | Medical valve , medical linker and infusion assembly |
| CN205434550U (en) * | 2016-03-02 | 2016-08-10 | 东爱华 | Disposable infusion apparatus |
| CN106668977A (en) * | 2016-12-28 | 2017-05-17 | 天津哈娜好医材有限公司 | Check valve used for infusion apparatus and use method of check valve |
| CN208641408U (en) * | 2017-07-31 | 2019-03-26 | 安徽宣和医疗科技有限公司 | A kind of anti-suck infusion apparatus |
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2020
- 2020-05-14 CN CN202010406520.8A patent/CN111569183A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040102738A1 (en) * | 2002-11-26 | 2004-05-27 | Medical Ventures, L.L.C. | Pressure actuated flow control valve |
| CN2730399Y (en) * | 2004-09-02 | 2005-10-05 | 上海力申科学仪器有限公司 | Zero-starting, single-direction gas feeding device used for anaesthesia apparatus |
| CN101648049A (en) * | 2009-09-10 | 2010-02-17 | 威海洁瑞医用制品有限公司 | Medical forward flow connection device |
| CN103212154A (en) * | 2012-01-21 | 2013-07-24 | 美昕医疗器械（上海）有限公司 | One-way positive valve |
| CN202751639U (en) * | 2012-06-08 | 2013-02-27 | 苏州林华医疗器械有限公司 | Positive-pressure and pin-free connection piece |
| CN202982926U (en) * | 2012-12-05 | 2013-06-12 | 山东威高集团医用高分子制品股份有限公司 | Transfusion one-way valve |
| CN204684180U (en) * | 2015-06-05 | 2015-10-07 | 四川科伦药业股份有限公司 | anti-reflux infusion bag interface combined plug |
| CN204766818U (en) * | 2015-07-06 | 2015-11-18 | 南京市胸科医院 | Clinical transfer line fixation clamp of using |
| CN205145387U (en) * | 2015-10-21 | 2016-04-13 | 深圳市安特高科实业有限公司 | Medical valve , medical linker and infusion assembly |
| CN205434550U (en) * | 2016-03-02 | 2016-08-10 | 东爱华 | Disposable infusion apparatus |
| CN106668977A (en) * | 2016-12-28 | 2017-05-17 | 天津哈娜好医材有限公司 | Check valve used for infusion apparatus and use method of check valve |
| CN208641408U (en) * | 2017-07-31 | 2019-03-26 | 安徽宣和医疗科技有限公司 | A kind of anti-suck infusion apparatus |
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Application publication date: 20200825 |