CN2100903U - Disposable intravenous injection needle for teflon - Google Patents
Disposable intravenous injection needle for teflon Download PDFInfo
- Publication number
- CN2100903U CN2100903U CN91225382U CN91225382U CN2100903U CN 2100903 U CN2100903 U CN 2100903U CN 91225382 U CN91225382 U CN 91225382U CN 91225382 U CN91225382 U CN 91225382U CN 2100903 U CN2100903 U CN 2100903U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- pull bar
- adapter
- teflon tube
- metal needle
- Prior art date
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- A61M5/162—Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3275—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel being connected to the needle hub or syringe by radially deflectable members, e.g. longitudinal slats, cords or bands
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0111—Aseptic insertion devices
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
- A61M25/0631—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Environmental & Geological Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a Teflon intravenous injection needle for blood transfusion or liquid infusion. A metallic needle, a connecting slot and a draw rod compose a connector, and a cylinder and a Teflon tube compose a second component. The connector can relatively move in the second component; in the process of blood transfusion or liquid infusion, the connector, the draw rod and a metallic needle head are moved, so that the injection from one blood vessel to another blood vessel can be easily carried out, and the Teflon tube does not need to be replaced. The part from the lower part of the connector to the upper part of the cylinder is sealed by a thin polyethylene protective screen, which can prevent bacteria from invading the draw rod. The device can stably carry out blood transfusion or liquid infusion.
Description
This utility model relates to nonrecoverable polytetrafluoroethylene injection needle device.
The metallic polytetrafluoroethylene intravenous needle head unit that uses inserts in the blood vessel so far, removes metal needle after the injection, and syringe is connected once more.Up to the present, used polytetrafluoroethylene intravenous needle uses 1 by following mode) with metal needle the polytetrafluoroethylene intravenous tube is thrust blood vessel, then metal needle is removed; 2) carrier pipe of transfusion set, infusion set or syringe all couples together with the top of retainer; 3) transfuse blood or infuse by syringe.
Since this injection metal needle, and after injection, remove syringe needle immediately, is connected with blood transfusion tube or tube for transfusion or syringe, so this injecting method has following shortcoming: 1) engage and injection process in the situation of generation leakage blood or leakage; 2) many times and need do chare are not only spent in attended operation, and when the syringe in the injection when a blood vessel moves on to another blood vessel, because metal needle is removed the essential teflon tube of replacing in addition.
Particularly, for another blood vessel is injected, after blood transfusion tube or tube for transfusion disconnection, must change with new teflon tube, and after thrusting blood vessel, the needle tubing of changing to remove metal needle immediately, teflon tube must be with on syringe be connected, the serious problems that these operating process meetings cause antibacterial to invade.
The purpose of this utility model is in order to overcome above-mentioned shortcoming, and providing a kind of can steadily transfuse blood and infuse, and can prevent what antibacterial from invading, but when changing injection position, the injection device of the teflon tube that need not more renew.The details of designed this utility model device is as follows:
1) since this newly-designed polytetrafluoroethylene intravenous needle head unit can or as a kind of install or be used for syringe needle is inserted syringe, and after penetrating blood vessel, metal needle and teflon tube simply metal needle is moved on to top, event is transfused blood, is infused or can carry out immediately with injector to inject, and unlikely generation is sewed, and has also reduced the time of preparing and injecting; 2) particularly, only the position that enters in the teflon tube by the change metal needle just can be injected another blood vessel easily, and the teflon tube that need not more renew.And the purpose of this utility model device is to prevent bacterial invasion problem in injection process by said method.
Another purpose of the present utility model provides the nonrecoverable polytetrafluoroethylene intravenous injection pipe unit that can transfuse blood fast and reposefully or infuse; and to protect this needle apparatus not to be subjected to bacterial infection, its method is exactly to adopt thin polyethylene protective shield will be exposed to pull bar and cylinder enclosed in the atmosphere in injection process.
In order to reach above-mentioned purpose of the present utility model, this utility model provides a kind of polytetrafluoroethylene intravenous needle head unit of transfusing blood or infusing of being used to, comprise cylinder, pipe and metal needle, according to this utility model, metal needle and link slot and cylindrical shape pull bar constitute a connector, and cylinder and teflon tube constitute second assembly, described adapter can relatively move in second assembly, annular polyethylene protective shield is linked the top of cylinder with sealing from the bottom of adapter, the bottom of wherein said cylindrical shape pull bar is connecting a circular slab, it has two holes and two passes, when pull bar moves, this plate moves up and down in cylinder, this plectane is communicated with teflon tube with the link slot of adapter, and link slot is connected with the carrier pipe that transports from the injection of container, two boss that are provided with in the pull bar upper and lower provide the mechanism of its displacement of control for adapter, pull bar is connected with the bottom of link slot, the heart has a through hole therein, described metal needle stretches out to the tip of teflon tube from the lower end of pull bar, the top of cylinder is provided with groove and places restrictions on moving of adapter to match with the boss of pull bar, the teflon tube of ining succession a plenum chamber in the bottom of cylinder and having flexible tension and stretching out from the bottom of plenum chamber, the two passes hole of cylinder bottom is communicated with cylinder with plenum chamber, after the metal needle band teflon tube insertion vein, metal needle moves up, injection by adapter via the access opening of pin and passage and cylinder bottom from the teflon tube afferent veins.
This utility model device is made up of described part, has the various functions that reach this utility model above-mentioned purpose.
The circular slab that is arranged on the pull bar lower end in the cylinder moves up and down by the mobile of adapter, and the distance that moves is limited within the cylinder by two boss.Carrier pipe connects with the link slot of adapter, and is connected with metal needle/teflon tube by the access opening in the pull bar.The top of cylinder has groove, and a plenum chamber is arranged at the bottom.
When transfusing blood or infuse, adapter, pull bar and the injection that makes from a blood vessel to another blood vessel that moves up and down of the metal needle that is connected with the pull bar bottom are carried out easily, and need not change polytetrafluoroethylene intravenous needle head unit.
With the polyethylene protective shield top to cylinder, the bottom of adapter is closed, prevents that antibacterial from invading pull bar, and separate with atmosphere.
At the access opening on the plenum chamber, hole on the plectane and the access opening of pull bar lower end is aligned.
Various parts and function thereof to this utility model device is described in detail in conjunction with the accompanying drawings below, in the accompanying drawings:
Fig. 1 is the oblique view of this utility model device;
Fig. 2 is the oblique view of the decomposition part of this utility model device;
Fig. 3 is the profile of this utility model device;
Fig. 4 is the schematic diagram of movements of this utility model device;
Fig. 5 is the profile along the A-A line of Fig. 3;
Fig. 6 is the profile along the B-B line of Fig. 4.
In the accompanying drawings, Fig. 1 illustrates the oblique view of the overall connection of this utility model device.Carrier pipe (4) is linked the top of polytetrafluoroethylene needle assembly (1) to the bottom of injection vessel (15), and flow regulator then is installed between these 2.
Fig. 2,3 and 4 illustrates oblique view, profile and the schematic diagram of movements of this utility model device decomposing state.Carrier pipe (4) inserts in the connection groove (13) of adapter (2), limit pull bar (50 distances that in cylinder (3), move up and down at the top of pull bar (5) and boss (6) and (7) of bottom, hole (8a) on the circular slab (8) of pull bar (5) bottom is aimed at teflon tube (12), and aims at the metal needle that tightly passes pipe (12) (9).When injection, the head of metal needle (9) protrudes at teflon tube (12) the about 1mm in tip.
Polyethylene protective shield (20) makes between the bottom of the top of cylinder (3) and adapter (2) and keeps sealing, make pull bar (5) and isolated from atmosphere, stop antibacterial to be invaded, this protective shield (20) is with transparent elastic polyethylene system, so, when pull bar (5) moved, polyethylene protective shield (20) was flexible, and its inside is visible.
Referring to Fig. 5 and 6, be provided with passage (21) and access opening (22) at circular slab (8), and aim at, so that make blood or injection flow to plenum chamber (11) from pull bar endoporus (17) reposefully.
This utility model device is like this design, and uses in the following manner and following advantage arranged.
Carrier pipe (4) is with after the link slot (13) of adapter (2) is connected, and the metal needle point exceeds the terminal about 1mm of teflon tube.The tip of metal needle (9) is thrust in the blood vessel, and one holds cylinder (3), and another handgrip adapter (2) upwards draws, and makes this utility model device keep the state shown in the image pattern 4.Then, make the injection in the container (15) pass through carrier pipe (4), link slot (13), pull bar endoporus (17), metal needle (9), plenum chamber (11), teflon tube (12), flow into blood vessel at last.Teflon tube is thin more good more.It has some flexible tension force, and the patient who accepts injection and move is agonized.Metal needle (9) has a vertical hole (14), and can closely move up and down in teflon tube.As shown in Figure 3 and Figure 4, flexible polyethylene protective shield (20) is enclosed between the bottom of the top of cylinder (3) and joint (2), is subjected to the infection of antibacterial to prevent pull bar (5).
The vertical convex platform of pull bar (5) (6) keeps suitable being connected with adapter (2).The lower convex platform (7) of cylinder (3) and pull bar (5) also adapter (2) upwards move to peaked that keep suitable being connected, the displacement of correspondingly regulating adapter (2) with the groove (10) of cylinder (3).In this, metal needle (9) tip is positioned at the top of plenum chamber (11), make blood transfusion or transfusion easier, and keep closely contact, make blood in the plenum chamber (11) or injection be unlikely and transfusing blood or infusing and carry out blowing back in the process cylinder (3) with the top of plenum chamber (11).
Because volume is not enough when transfusing blood or infusing by metal needle (9), and flow velocity is slow, so also the passage (21) by pull bar endoporus (17) bottom carries out, like this, part blood or injection just are collected in the cylinder (3), (when regathering after (22) in plenum chamber (11), just be easy to blood or liquid are input in the blood vessel by access opening by teflon tube (12).
Just in case will be when a blood vessel transforms to another blood vessel the position of polytetrafluoroethylene needle assembly, just teflon tube (12) is taken off from blood vessel, make adapter (2) get back to the home position, then,, continue to inject with when groove (10) cooperates at boss (6) with the metal needle point that protrudes in about 1mm outside teflon tube (12) tip.
Hole (8a) on the circular slab (8) makes the air pressure in the cylinder (3) keep stablizing atmospheric pressure.The tip of metal needle (9) must be very sharp, and adapter (2) should have suitable tension force.
Owing in blood transfusion, usually need mobile pull bar (5) so that change to another blood vessel, therefore be provided with the polyethylene protective shield and be not subjected to germ contamination with protection pull bar (5) from a blood vessel.
Like this, this utility model device can be followed simple program recited above and transfuse blood in the simple and rapid mode by blood transfusion tube and the syringe that is attached thereto, and without any sewing, does not also waste syringe needle.And this utility model device is being accomplished abacterial blood transfusion or transfusion by the pull bar implementation sealing that must move is made when a blood vessel forwards another vein blood vessel in the blood transfusion process.And cause farthest level and smooth and stable blood transfusion operation owing to being provided with pull bar endoporus, access opening and plenum chamber.
In addition, this utility model device does not need to change carrier pipe or syringe in the blood transfusion process, can follow simple program and transfuse blood or infuse, and the blood transfusion or the transfusion of no bacterial infection are provided.
Claims (1)
1, a kind of polytetrafluoroethylene intravenous needle head unit of transfusing blood or infusing of being used to, comprise cylinder, pipe and metal needle, it is characterized in that metal needle (9) and link slot (13) and cylindrical shape pull bar (5) constitute a connector (2), and cylinder (3) and teflon tube (12) constitute second assembly, described adapter (12) can relatively move in second assembly, annular polyethylene protective shield (20) is linked the top of cylinder (3) with sealing from the bottom of adapter (2), the bottom of wherein said cylindrical shape pull bar (5) is connecting a circular slab (8), it has two holes (8a) and two passes (21), this plate (8) moves up and down in cylinder (3) when pull bar (5) is mobile, this plectane (8) is communicated with teflon tube (12) with the link slot (13) of adapter (2), and link slot (13) is connected with the carrier pipe (4) that transports from the injection of container, two boss (6 that are provided with in pull bar (5) upper and lower, 7) provide the mechanism that controls its displacement for adapter (2), pull bar (5) is connected with the bottom of link slot (13), the heart has a through hole (17) therein, described metal needle stretches out to the tip of teflon tube (12) from the lower end of pull bar (5), the top of cylinder (3) be provided with groove (10) with the boss (6 of pull bar (5), 7) match and place restrictions on moving of adapter (2), the teflon tube (12) of ining succession a plenum chamber (11) in the bottom of cylinder (3) and having flexible tension and stretching out from the bottom of plenum chamber (11), the two passes hole (22) of cylinder (3) bottom is communicated with cylinder (3) with plenum chamber (11), after metal needle (9) is being with teflon tube (12) to insert vein, metal needle (9) moves up, injection is by adapter (2), via the access opening (22) of pin (9) and passage (21) and cylinder (3) bottom, from teflon tube (12) afferent veins.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR14735/1990 | 1990-09-21 | ||
| KR2019900014735 | 1990-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2100903U true CN2100903U (en) | 1992-04-08 |
Family
ID=19303717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91225382U Granted CN2100903U (en) | 1990-09-21 | 1991-09-21 | Disposable intravenous injection needle for teflon |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JP2550494Y2 (en) |
| KR (1) | KR930009788B1 (en) |
| CN (1) | CN2100903U (en) |
| AU (1) | AU8470091A (en) |
| CA (1) | CA2051710A1 (en) |
| DE (1) | DE9111736U1 (en) |
| DK (1) | DK161291A (en) |
| ES (1) | ES1019684Y (en) |
| FR (1) | FR2666990B3 (en) |
| GB (1) | GB2248021B (en) |
| IT (1) | IT222727Z2 (en) |
| NL (1) | NL9101598A (en) |
| NO (1) | NO913716L (en) |
| SE (1) | SE9102717L (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5300039A (en) * | 1989-03-10 | 1994-04-05 | Poulsen Thomas E | Safety hypodermic needle |
| GB2274783B (en) * | 1993-02-03 | 1996-12-11 | Graham Cameron Grant | Intravenous infusion set with needle protection |
| GB2279570A (en) * | 1993-05-27 | 1995-01-11 | Kyung Jin Song | Vein needle set |
| US5419766A (en) * | 1993-09-28 | 1995-05-30 | Critikon, Inc. | Catheter with stick protection |
| US5545146A (en) * | 1994-06-22 | 1996-08-13 | Ishak; Noshi A. | Catheter apparatus having a retractable intravenous needle assembly |
| FR2788985A1 (en) * | 1999-01-28 | 2000-08-04 | Dit De Callac Jean Marie Colin | Automatic safety device for pre-filled syringe comprises cylinder, sprung vanes and reinforced clip, all in one piece |
| EP1280454B1 (en) | 2000-04-18 | 2015-10-14 | MDC Investment Holdings, Inc. | Medical device with shield having a retractable needle |
| JP4586974B2 (en) * | 2005-02-28 | 2010-11-24 | 株式会社ジェイ・エム・エス | Indwelling needle structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4160450A (en) * | 1977-07-15 | 1979-07-10 | Doherty George O | Outside-the-needle catheter device with needle housing |
| US4327723A (en) * | 1980-05-13 | 1982-05-04 | Arrow International, Inc. | Catheter shield |
-
1991
- 1991-09-13 JP JP1991073935U patent/JP2550494Y2/en not_active Expired - Lifetime
- 1991-09-18 DK DK161291A patent/DK161291A/en not_active IP Right Cessation
- 1991-09-18 IT ITMI910802U patent/IT222727Z2/en active IP Right Grant
- 1991-09-18 CA CA002051710A patent/CA2051710A1/en not_active Abandoned
- 1991-09-19 DE DE9111736U patent/DE9111736U1/en not_active Expired - Lifetime
- 1991-09-20 NO NO91913716A patent/NO913716L/en unknown
- 1991-09-20 SE SE9102717A patent/SE9102717L/en not_active Application Discontinuation
- 1991-09-20 FR FR9111625A patent/FR2666990B3/en not_active Expired - Fee Related
- 1991-09-20 ES ES19919102846U patent/ES1019684Y/en not_active Expired - Lifetime
- 1991-09-21 CN CN91225382U patent/CN2100903U/en active Granted
- 1991-09-23 GB GB9120245A patent/GB2248021B/en not_active Expired - Fee Related
- 1991-09-23 AU AU84700/91A patent/AU8470091A/en not_active Abandoned
- 1991-09-23 NL NL9101598A patent/NL9101598A/en not_active Application Discontinuation
-
1993
- 1993-05-31 KR KR1019930009876A patent/KR930009788B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL9101598A (en) | 1992-04-16 |
| NO913716L (en) | 1992-03-23 |
| GB2248021A (en) | 1992-03-25 |
| ITMI910802U1 (en) | 1993-03-18 |
| FR2666990A1 (en) | 1992-03-27 |
| KR930009788B1 (en) | 1993-10-11 |
| ES1019684Y (en) | 1992-12-16 |
| FR2666990B3 (en) | 1993-07-02 |
| DK161291A (en) | 1992-03-23 |
| JPH0553649U (en) | 1993-07-20 |
| ES1019684U (en) | 1992-05-01 |
| SE9102717L (en) | 1992-03-22 |
| SE9102717D0 (en) | 1991-09-20 |
| GB9120245D0 (en) | 1991-11-06 |
| AU8470091A (en) | 1992-03-26 |
| GB2248021B (en) | 1994-08-17 |
| DK161291D0 (en) | 1991-09-18 |
| JP2550494Y2 (en) | 1997-10-15 |
| NO913716D0 (en) | 1991-09-20 |
| ITMI910802V0 (en) | 1991-09-18 |
| DE9111736U1 (en) | 1992-06-25 |
| IT222727Z2 (en) | 1995-04-24 |
| CA2051710A1 (en) | 1992-03-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |