CN111359054A - Self-exhausting liquid-stopping infusion needle - Google Patents
Self-exhausting liquid-stopping infusion needle Download PDFInfo
- Publication number
- CN111359054A CN111359054A CN202010190084.5A CN202010190084A CN111359054A CN 111359054 A CN111359054 A CN 111359054A CN 202010190084 A CN202010190084 A CN 202010190084A CN 111359054 A CN111359054 A CN 111359054A
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- needle
- protective sleeve
- seat
- far away
- self
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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
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- 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
- A61M5/36—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 with means for eliminating or preventing injection or infusion of air into 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)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a self-exhaust liquid-stopping infusion needle, which comprises a connecting seat, wherein a connecting piece is clamped at one end of the connecting seat, one end of the connecting piece, which is far away from the connecting seat, is communicated with a hose, one end of the hose, which is far away from the connecting piece, is communicated with a needle seat, a needle head is embedded in one end of the needle seat, which is far away from the hose, the outer side of the needle head is provided with a protective sleeve, the lower end of the protective sleeve is sleeved at the end part of the needle seat, which is far away from the hose, a first air-permeable plug is inserted in one end of the protective sleeve, which is far away from the needle seat, and the needle head is positioned below the first air-permeable plug, so that the aim of exhausting is achieved through the structure, but the first air-permeable plug has a liquid-impermeable function, and the liquid medicine is prevented from being, does not need to change the use habit of an operator, and can be widely applied to clinic.
Description
Technical Field
The invention belongs to the technical field of infusion needles, and particularly relates to a self-exhaust liquid-stop infusion needle.
Background
Intravenous infusion is a method of infusing a large amount of sterile liquid, electrolyte and medicine into the body from veins by utilizing the principles of atmospheric pressure and hydrostatic pressure. The intravenous infusion needle is used for connecting an injector, an infusion apparatus and a blood transfusion apparatus to carry out intravenous infusion liquid medicine and blood transfusion, at present, the infusion needle in the medical field is usually used in a matched manner after being connected with an infusion (blood) apparatus, and the common infusion needle consists of a needle seat, a small hose, a needle handle, a needle tube and a protective sleeve.
Before a patient is transfused, the gas in the transfusion tube is usually required to be discharged, the gas and liquid medicine in the transfusion tube are usually discharged outwards through a needle head, the liquid medicine is caused to flow out of a needle hole of the transfusion needle and then drip on the ground due to the fact that a waste liquid collecting barrel is not prepared in the exhaust process, the environment is polluted, the liquid medicine is wasted, even a few drops of expensive liquid medicine are wasted, medical and patient disputes are caused, meanwhile, in the process, the tail end of a protective sleeve of a common transfusion needle is mostly in an open state, external bacteria and dust are easy to enter the transfusion needle, and therefore the transfusion needle which has the functions of discharging air in a pipeline, preventing liquid medicine from dripping and leaking and is simple and convenient to operate solves the problems.
Disclosure of Invention
The invention aims to provide a self-exhaust liquid-stopping infusion needle, which solves the problems that in the background technology, the gas in an infusion tube is usually required to be exhausted before infusion is carried out on a patient, a waste liquid collecting barrel is not prepared in the exhaust process, so that liquid medicine flows out of a needle hole of the infusion needle and then drips on the ground, the environment is polluted, the liquid medicine is wasted, even a few drops of expensive liquid medicine are wasted, medical and patient disputes are caused, and meanwhile, in the process, the tail end of a protective sleeve of a common infusion needle is mostly in an open state, so that external bacteria and dust are easy to enter the infusion needle.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a from exhaust end liquid transfusion needle, includes the connecting seat, the one end joint of connecting seat has the connecting piece, the one end intercommunication that the connecting seat was kept away from to the connecting piece has the hose, the one end intercommunication that the connecting piece was kept away from to the hose has the needle file, the inside embedding of one end that the hose was kept away from to the needle file has the syringe needle, the outside of syringe needle is provided with the protective sheath, the lower extreme of protective sheath cup joints the one end tip of keeping away from the hose at the needle file, the inside grafting of one end that the needle file was kept away from to the protective sheath has first ventilative stopper, the syringe needle is located the below of first ventilative stopper, integrated into one piece has the step in.
Preferably, a first sealing ring is sleeved in the middle of the outer cylindrical surface of the first ventilation plug, a first sealing groove matched with the first sealing ring is formed in the inner wall of the protective sleeve, and the first sealing ring is clamped in the first sealing groove.
Preferably, a hanging table is integrally formed at one end of the first ventilating plug, the hanging table is located at the outer side of one end, away from the needle seat, of the protective sleeve, and the lower end face of the hanging table is in close contact with the upper end face of the protective sleeve.
Preferably, the end part of one end, far away from the hanging table, of the first ventilation plug is provided with a conical chamfer, and the conical chamfer is inserted into the protective sleeve.
Preferably, first handles are integrally formed on two sides of the middle of the connecting piece, and the two first handles are located between the connecting seat hoses.
Preferably, a second handle is integrally formed at one side of the middle of the needle seat.
Preferably, the two sides of the second handle are uniformly provided with anti-skid grains.
Preferably, the first purge plug is made of an ultra-high molecular weight polyethylene material.
The invention has the technical effects and advantages that: compared with the prior art, the self-exhaust liquid-stop transfusion needle provided by the invention has the following advantages:
1. in the air exhaust operation process before infusion, the first air plug in the protective sleeve has an air exhaust function, air in the infusion (blood) apparatus pipeline can be exhausted through the first air plug, and the air exhaust purpose is achieved, but the first air plug has a liquid-tight function, and prevents liquid medicine from dripping on the ground after flowing out of a needle hole of a needle head to waste the liquid medicine and pollute the environment, so that the air exhaust and liquid blocking device has the air exhaust and liquid blocking functions, is simple in structure, convenient to manufacture, low in cost, simple and convenient to operate, does not need to change the use habit of an operator, and can be widely applied to clinic;
2. first ventilative stopper has the function of fungi-proofing and dust prevention, can prevent that external bacterium and dust from getting into the inside syringe needle of protective sheath, play the isolation, the guard action, it has first sealing washer to adjust on the outer face of cylinder of first ventilative stopper, first sealing washer joint is in the first seal groove on the protective sheath inner wall, the realization is sealed to protective sheath and first ventilative stopper contact site, both prevent that the liquid medicine from leaking the protective sheath outside, avoid external dust again, bacterium etc. gets into the syringe needle from the clearance between protective sheath and the first ventilative stopper, make the joint together between protective sheath and the first ventilative stopper simultaneously, improve the fastness and the stability of connecting between protective sheath and the first ventilative stopper.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the invention at A;
FIG. 3 is an exploded view of a first purge plug and sock of the present invention;
FIG. 4 is a diagram showing the positional relationship between the lid and the sheath of the vent plug of example 2;
FIG. 5 is an exploded view of the lid and sleeve of example 2;
FIG. 6 is a diagram of the second purge plug and sock position of example 3;
fig. 7 is a schematic view of a protective cover according to the present invention.
Reference numerals: 1. a connecting seat; 2. a connecting member; 3. a hose; 4. a needle seat; 5. a needle head; 6. a protective sleeve; 7. a first purge plug; 8. a first seal ring; 9. a first seal groove; 10. hanging a table; 11. conical chamfering; 12. a first handle; 13. a second handle; 14. anti-skid lines; 15. a venting plug cover; 16. air holes are formed; 17. a gas permeable membrane; 18. a second seal ring; 19. a second seal groove; 20. a second purge plug; 21. a step; 22. and (5) sealing the sleeve.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. 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.
Example 1
Referring to fig. 1-3, the invention provides a self-exhaust liquid-stop infusion needle, which comprises a connecting seat 1, wherein one end of the connecting seat 1 is clamped with a connecting piece 2, one end of the connecting piece 2, which is far away from the connecting seat 1, is communicated with a hose 3, first handles 12 are uniformly formed on two sides of the middle of the connecting piece 2, the two first handles 12 are positioned between the hoses 3 of the connecting seat 1, the arrangement of the first handles 12 is convenient for medical staff to pinch the first handles 12 to realize that the connecting piece 2 drives the connecting seat 1 to be connected with and separated from an infusion apparatus, the use is convenient, one end of the hose 3, which is far away from the connecting piece 2, is communicated with a needle seat 4, a needle head 5 is embedded in one end of the needle seat 4, which is far away from the hose 3, a second handle 13 is integrally formed on one side of the middle of the needle, the anti-skid lines 14 are uniformly arranged on two sides of the second handle 13, so that the friction force between fingers and the second handle 13 is improved, the puncture is conveniently realized by force, and the use is convenient;
referring to fig. 1, 2, 3 and 7, a protective sleeve 6 is arranged on the outer side of the needle head 5, the lower end of the protective sleeve 6 is sleeved on the end portion of the needle seat 4 far away from the hose 3, a first vent plug 7 is inserted into the end of the protective sleeve 6 far away from the needle seat 4, the first vent plug 7 is made of an ultra-high molecular weight polyethylene material, so that the air exhaust and liquid blocking functions of the first vent plug 7 are realized, the needle head 5 is located below the first vent plug 7, a first seal ring 8 is sleeved in the middle of the outer cylindrical surface of the first vent plug 7, a first seal groove 9 matched with the first seal ring 8 is formed in the inner wall of the protective sleeve 6, the first seal ring 8 is clamped in the first seal groove 9, so that the contact portion between the protective sleeve 6 and the first vent plug 7 is sealed, thereby preventing the liquid medicine from leaking to the outer side of the protective sleeve 6 and avoiding external dust, Bacteria and the like enter the needle head 5 from a gap between the protective sleeve 6 and the first ventilation plug 7, and meanwhile, the protective sleeve 6 and the first ventilation plug 7 are clamped together, so that the firmness and the stability of connection between the protective sleeve 6 and the first ventilation plug 7 are improved, the protective sleeve 6 is pulled out from the needle base 4 by hand conveniently, a step 21 is integrally formed in the middle of the outer cylindrical surface of the protective sleeve 6, in order to prevent impurities such as external liquid dust and the like from entering the protective sleeve 6 from a gap between the protective sleeve 6 and the needle base 6, a sealing sleeve 22 is clamped in one end of the protective sleeve 6 close to the needle base 4, and a sealing effect is achieved;
referring to fig. 1, 2, 3 and 7, a hanging table 10 is integrally formed at one end of the first venting plug 7, the hanging table 10 is located at an outer side of one end of the protective sleeve 6, which is far away from the needle base 4, a lower end face of the hanging table 10 is in close contact with an upper end face of the protective sleeve 6, so that the first venting plug 7 is limited, the first venting plug 7 is prevented from sliding into the protective sleeve 6, and the limiting and protecting effects are achieved, a tapered chamfer 11 is arranged at one end of the first venting plug 7, which is far away from the hanging table 10, and the tapered chamfer 11 is inserted into the protective sleeve 6, so that the first venting plug 7 can be smoothly inserted into the protective sleeve 6 during assembly, the assembly is convenient, and the assembly efficiency is improved.
Example 2
Referring to fig. 4-5, the embodiment is different from embodiment 1 in that a breathable plug cover 15 is sleeved on an outer side of an end portion of the protective sleeve 6 far away from the needle base 4, a breathable hole 16 is formed in the middle of the breathable plug cover 15, a breathable film 17 is disposed between the breathable hole 16 and an outlet of the protective sleeve 6, the breathable film 17 is made of an ultra-high molecular weight polyethylene material, gas can pass through the breathable film 17 but liquid cannot pass through the breathable film 17, so as to perform an air and liquid exhausting and blocking function, the breathable film 17 is located at an upper end inside the breathable plug cover 15, a lower surface of the breathable plug cover 15 is adhered to the outlet of the protective sleeve 6, a second sealing ring 18 is sleeved on an upper end of an outer cylindrical surface of the protective sleeve 6, a second sealing groove 19 adapted to the second sealing ring 18 is formed on an inner wall of the breathable plug cover 15, the liquid medicine is prevented from leaking out from the gap between the air-permeable plug cover 15 and the protective sleeve 6, and meanwhile, external dust, bacteria and the like are prevented from entering the needle head 5 from the outside, so that the sealing effect is achieved.
Example 3
Referring to fig. 6, the difference between this embodiment and embodiment 1 is that a second vent plug 20 is inlaid in the upper end of the interior of the protective sheath 6, the second vent plug 20 is cylindrical, the protective sheath 6 is tubular with a smooth inner wall, and the second vent plug 20 is also made of ultra-high molecular weight polyethylene, so as to block water and ventilate. The ventilation effect is also beneficial to the dispersion and analysis of ethylene oxide gas in the inner cavity of the product after EO sterilization, and meanwhile, the ventilation speed is slower than that of the protective sleeve 6 which is directly opened, so that bubbles are not easy to be generated to attach to the inner wall of the pipeline when the infusion apparatus exhausts.
The structure principle is as follows: the first air-permeable plug 7 in the protective sleeve 6 has an air-permeable function, air in the pipeline of the transfusion device can be discharged through the first air-permeable plug 7, so that the purpose of air exhaust is achieved, but the first air-permeable plug 7 has a liquid-impermeable function, and the liquid medicine is prevented from dripping on the ground after flowing out of a needle hole of the needle head 5 to waste the liquid medicine and pollute the environment, so that the air-permeable plug has the functions of air exhaust and liquid blocking, has a simple structure, is convenient to manufacture, has low cost, is simple and convenient to operate, does not need to change the use habit of an operator, and can be;
simultaneously first ventilative stopper 7 has the function of fungi-proofing and dust prevention, can prevent that external bacterium and dust from getting into the inside syringe needle of protective sheath 6, play the isolation, the guard action, it has first sealing washer 8 to adjust on the outer face of cylinder of first ventilative stopper 7, first sealing washer 8 joint is in first seal groove 9 on the protective sheath 6 inner wall, the realization is to the sealed of protective sheath 6 and first ventilative stopper 7 contact site, both prevent that the liquid medicine from leaking the protective sheath 6 outside, avoid external dust again, bacterium etc. gets into syringe needle 5 from the clearance between protective sheath 6 and the first ventilative stopper 7, make the joint together between protective sheath 6 and the first ventilative stopper 7 simultaneously, improve the fastness and the stability of connecting between protective sheath 6 and the first ventilative stopper 7.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a from exhaust and end liquid transfusion needle, includes connecting seat (1), its characterized in that: one end of the connecting seat (1) is clamped with a connecting piece (2), one end of the connecting piece (2) far away from the connecting seat (1) is communicated with a hose (3), one end of the hose (3) far away from the connecting piece (2) is communicated with a needle seat (4), a needle head (5) is embedded in one end of the needle seat (4) far away from the hose (3), a protective sleeve (6) is arranged on the outer side of the needle head (5), the lower end of the protective sleeve (6) is sleeved at the end part of one end of the needle seat (4) far away from the hose (3), a first ventilation plug (7) is inserted into one end of the protective sleeve (6) far away from the needle base (4), the needle head (5) is positioned below the first ventilation plug (7), a step (21) is integrally formed in the middle of the outer cylindrical surface of the protective sleeve (6), a sealing sleeve (22) is clamped inside one end of the protective sleeve (6) close to the needle base (4).
2. The self-venting liquid-stop infusion needle according to claim 1, wherein: first sealing washer (8) have been cup jointed in the middle of the outer face of cylinder of first ventilative stopper (7), offer on the inner wall of protective sheath (6) with first sealing washer (8) looks adaptation first seal groove (9), first sealing washer (8) joint is in first seal groove (9).
3. The self-venting liquid-stop infusion needle according to claim 1, wherein: a hanging table (10) is integrally formed at one end of the first ventilation plug (7), the hanging table (10) is located on the outer side of one end, away from the needle seat (4), of the protective sleeve (6), and the lower end face of the hanging table (10) is in close contact with the upper end face of the protective sleeve (6).
4. The self-venting liquid-stop infusion needle according to claim 3, wherein: the end part, far away from the hanging table (10), of one end of the first ventilation plug (7) is provided with a conical chamfer (11), and the conical chamfer (11) is inserted into the protective sleeve (6).
5. The self-venting liquid-stop infusion needle according to claim 1, wherein: the middle two sides of the connecting piece (2) are integrally formed with first handles (12), and the two first handles (12) are positioned between the connecting seat (1) and the hose (3).
6. The self-venting liquid-stop infusion needle according to claim 1, wherein: a second handle (13) is integrally formed at one side of the middle of the needle seat (4).
7. The self-venting liquid-stop infusion needle according to claim 6, wherein: and anti-skid grains (14) are uniformly arranged on two surfaces of the second handle (13).
8. The self-venting liquid-stop infusion needle according to claim 1, wherein: the first air-permeable plug (7) is made of ultra-high molecular weight polyethylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190084.5A CN111359054A (en) | 2020-03-18 | 2020-03-18 | Self-exhausting liquid-stopping infusion needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190084.5A CN111359054A (en) | 2020-03-18 | 2020-03-18 | Self-exhausting liquid-stopping infusion needle |
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| Publication Number | Publication Date |
|---|---|
| CN111359054A true CN111359054A (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010190084.5A Pending CN111359054A (en) | 2020-03-18 | 2020-03-18 | Self-exhausting liquid-stopping infusion needle |
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| CN (1) | CN111359054A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202078613U (en) * | 2010-11-22 | 2011-12-21 | 王慧美 | Exhausting liquid-blocking protective cap |
| CN202105255U (en) * | 2011-05-09 | 2012-01-11 | 江西洪达医疗器械集团有限公司 | Infusion needle with ventilating component |
| CN202982804U (en) * | 2012-12-28 | 2013-06-12 | 江西洪达医疗器械集团有限公司 | Low-resistance injector |
| CN203425305U (en) * | 2013-07-29 | 2014-02-12 | 浙江灵洋医疗器械有限公司 | Exhausting and liquid-stopping protective cap for transfusion set |
| CN103721320A (en) * | 2014-01-25 | 2014-04-16 | 圣光医用制品有限公司 | Safe injector |
| CN103990226A (en) * | 2014-06-10 | 2014-08-20 | 倪新华 | Exhaust bacterium blocking cap |
| CN105288773A (en) * | 2015-10-30 | 2016-02-03 | 刘青山 | Infusion apparatus low in contamination and easy to operate |
| CN105358196A (en) * | 2013-06-25 | 2016-02-24 | 安尼马斯公司 | Vented fluid cartridge for medical infusion device |
| CN107106786A (en) * | 2014-10-02 | 2017-08-29 | 泰尔茂株式会社 | Syringe assembly, precharging type syringe, the outer barrel closure with puncture needle and syringe assembly package body |
| CN109893707A (en) * | 2019-04-16 | 2019-06-18 | 河南曙光汇知康生物科技股份有限公司 | A kind of bubble-free, full-automatic exhaust infusion set |
| CN110711284A (en) * | 2019-12-06 | 2020-01-21 | 江西丽华鑫朗药业科技有限公司 | Infusion apparatus with overflow-preventing color-changing filter element and precise membrane liquid-preventing and bubble-preventing liquid level positioning functions |
-
2020
- 2020-03-18 CN CN202010190084.5A patent/CN111359054A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202078613U (en) * | 2010-11-22 | 2011-12-21 | 王慧美 | Exhausting liquid-blocking protective cap |
| CN202105255U (en) * | 2011-05-09 | 2012-01-11 | 江西洪达医疗器械集团有限公司 | Infusion needle with ventilating component |
| CN202982804U (en) * | 2012-12-28 | 2013-06-12 | 江西洪达医疗器械集团有限公司 | Low-resistance injector |
| CN105358196A (en) * | 2013-06-25 | 2016-02-24 | 安尼马斯公司 | Vented fluid cartridge for medical infusion device |
| CN203425305U (en) * | 2013-07-29 | 2014-02-12 | 浙江灵洋医疗器械有限公司 | Exhausting and liquid-stopping protective cap for transfusion set |
| CN103721320A (en) * | 2014-01-25 | 2014-04-16 | 圣光医用制品有限公司 | Safe injector |
| CN103990226A (en) * | 2014-06-10 | 2014-08-20 | 倪新华 | Exhaust bacterium blocking cap |
| CN107106786A (en) * | 2014-10-02 | 2017-08-29 | 泰尔茂株式会社 | Syringe assembly, precharging type syringe, the outer barrel closure with puncture needle and syringe assembly package body |
| CN105288773A (en) * | 2015-10-30 | 2016-02-03 | 刘青山 | Infusion apparatus low in contamination and easy to operate |
| CN109893707A (en) * | 2019-04-16 | 2019-06-18 | 河南曙光汇知康生物科技股份有限公司 | A kind of bubble-free, full-automatic exhaust infusion set |
| CN110711284A (en) * | 2019-12-06 | 2020-01-21 | 江西丽华鑫朗药业科技有限公司 | Infusion apparatus with overflow-preventing color-changing filter element and precise membrane liquid-preventing and bubble-preventing liquid level positioning functions |
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