CN201806995U - Germproof needleless closed infusion joint - Google Patents
Germproof needleless closed infusion joint Download PDFInfo
- Publication number
- CN201806995U CN201806995U CN2010205383197U CN201020538319U CN201806995U CN 201806995 U CN201806995 U CN 201806995U CN 2010205383197 U CN2010205383197 U CN 2010205383197U CN 201020538319 U CN201020538319 U CN 201020538319U CN 201806995 U CN201806995 U CN 201806995U
- Authority
- CN
- China
- Prior art keywords
- tube body
- duct
- slide core
- upper tube
- fungi
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a germproof needleless closed infusion joint, which comprises an upper tube body, a lower tube body, a movable core and a spring. The lower end of the upper tube is connected with the upper end of the lower tube body. Two sections of concentric pore passages for installing the movable core are formed in the upper tube body, wherein an upper concentric pore passage is small and a lower concentric pore passage is big. An upper cylinder and a middle cylinder of the movable core are respectively and correspondingly in fit with the upper and lower pore passages of the upper tube body. The spring is externally sleeved on the lower cylinder of the movable core. Two sections of concentric pore passages are formed in the lower tube body, wherein an upper concentric pore passage is big and a lower concentric pore passage is small. The spring is positioned between the bottom end of the middle cylinder of the movable core and the junction of the upper and lower pore passages of the lower tube body. A cover body for shielding a tube orifice at the upper end of the upper tube body is additionally arranged. The cover body is connected with the upper tube body by a movable connection structure. A germproof cushion for preventing bacteria from growing at the position contacted with a syringe is arranged in the cover body. In the utility model, the germproof cushion is arranged in the cover body and can prevent the bacteria from growing so as to greatly reduce infusion infection.
Description
Technical field
This utility model relates to a kind of medical assistance apparatus, particularly a kind of fungi-proofing Needleless seal transfusion joint.
Background technology
Development along with the venous transfusion technology, in recent years, the Needleless seal transfusion technology is widely used in clinical, so-called Needleless seal transfusion is meant except that with the trocar percutaneous veins beneath the skin being carried out the one-time puncture, make up a prescription, a series of clinical manipulations such as injection, transfusion, blood transfusion, blood drawing all no longer need to use scalp acupuncture puncture heparin lock, connect infusion channel and only adopt the needleless infusion connector, transfusion device, syringe are directly connected with the needleless infusion connector, and the needleless infusion connector provides passage and injection port for transfusion.
But existing at present needleless infusion connector ubiquity following defective: complex structure, complex operation; Medicinal liquid is easy to contaminated when flowing through transfusion path in the joint; Seal is relatively poor, causes medicinal liquid to leak easily; Venous return phenomenon etc. can appear.
Utility model patent " the Needleless seal transfusion joint " (patent No.: 200720170109.5) disclose a kind of infusion connector is authorized by China, comprise upper tube body, lower tube body, slide core and spring, the upper end of lower tube body is placed in the upper tube body lower end, and the position that the upper tube body sidewall is positioned at lower tube body is provided with through hole and forms gas passage with the lower tube body wall; Be provided with slide core moving up and down in the upper tube body, its outer wall is provided with a sealing ring and seals mutually with upper tube body, and this slide core bottom and upper tube body form an annular space and be used for putting spring, are provided with the upper and lower body of T-shape channel connection in this slide core.The shortcoming of this infusion connector is: when (1) syringe was connected with this infusion connector, to pressing down, spring became compressive state with slide core, at this moment, because the effect of spring restoring force, be easy to cause separating of syringe and infusion connector, it is very inconvenient to make medical personnel operate; (2) when this infusion connector is in non-working condition, the part that slide core is used for being connected with syringe exposes to air, and it is contaminated to make that this part is easy to, and infects thereby cause transfusion; (3) when this infusion connector is in user mode, thereby the whole transfusion path of through hole conducting on the elastic sealing gasket is passed in the lower end of slide core, yet elastic sealing gasket has increased the resistance when slide core moves down, and brings unhandy problem.
The utility model content
The purpose of this utility model provides a kind of simple in structure, handled easily, can prevent the fungi-proofing Needleless seal transfusion joint of bacteria breed.
The technical solution of the utility model can realize by following technical measures, a kind of fungi-proofing Needleless seal transfusion joint, comprise upper tube body, lower tube body, slide core and spring, the lower end of described upper tube body is connected with the upper end of lower tube body, have the up-small and down-big two sections concentric ducts that are used to install slide core in the described upper tube body, the top cylinder of described slide core and middle part cylinder respectively with upper tube body on, hypomere duct correspondence is adaptive, described spring overcoat is on the cylinder of the bottom of slide core, have up big and down small two sections concentric ducts in the described lower tube body, described spring be positioned at the cylinder bottom, middle part of slide core and lower tube body on, between the joint portion, hypomere duct; But the transfusion duct that has the whole transfusion path of conducting in the described slide core; The hypomere duct hole wall that described upper tube body is used for mounting spring is provided with the exhaust structure that air in this duct can be discharged, it is characterized in that setting up a lid that is used to block the upper tube body upper end mouth of pipe, be connected by movable connection structure between described lid and the upper tube body, be provided with the fungi-proofing pad that is used to prevent with syringe contact site bacteria breed in the described lid.
This utility model has been set up lid, the part that lid makes slide core be used for being connected with syringe when unused state can not expose to air, thereby can avoid contaminated, also in lid, be provided with fungi-proofing pad, fungi-proofing pad can prevent growing of antibacterial in the confined space of lid, thereby reduces the generation of infecting when infusing significantly.
As a kind of improvement of the present utility model, the upper end mouth of pipe of described upper tube body is to be used for Rule tapering interface of being connected with syringe front tab close fit.
The existing injector for medical purpose front tab outer wall shape that is used for being connected with syringe needle generally is to design according to Rule tapering of 1: 400, the inwall that this utility model upper tube body is connected with the syringe front tab also relative set becomes to meet the shape of Rule tapering, therefore upper tube body can closely cooperate with the joint of syringe, be subjected to the spring restoring force to do the time spent this moment, can prevent that spring from popping up, thereby guarantee that syringe can not separate with infusion connector, makes things convenient for medical personnel's transfusion operation.
As further improvement of the utility model, the upper end overcoat of described lower tube body is connected on the lower end of upper tube body, the lower end of described upper tube body directly contacts the joint portion in the upper and lower sector hole of described lower tube body road, the lower end of described slide core has flange, the hypomere duct of described flange and lower tube body is suitable, have annular mounting groove on this flange side circumference, dress is used to the O shape silicone rubber O-ring that prevents that medicinal liquid from leaking in the described mounting groove.
The O-ring seals that this utility model adopts silicone rubber to make meets the medical sanitary standard; Elastic sealing gasket is set compares with existing, this utility model O-ring seals can significantly reduce the resistance of slide core when moving down under the prerequisite that guarantees sealing effectiveness, thereby makes things convenient for medical worker's operation.
This utility model can also be done following improvement, described lower tube body hypomere duct is made up of two sections up big and down small concentric pylones, wherein, the hypomere through hole is used for being connected with tube for transfusion, and described slide core moves down the flange that makes described slide core and is stuck on the joint portion of these two sections through holes.
As a kind of embodiment of the present utility model, described exhaust structure comprises the steam vent of being located on the hole wall of upper tube body hypomere duct, the exhaust passage that is in upper tube body and lower tube body connecting portion, described exhaust passage communicates with the external world, and described steam vent is communicated with the exhaust passage.When this utility model was in user mode, slide core moved down, and the air in the upper tube body hypomere duct can be discharged via the exhaust passage from steam vent, thereby the resistance the when core that takes in sail moves down makes things convenient for medical worker's operation.
As embodiment of the present utility model, described fungi-proofing pad adopts the organosilicon material that can discharge silver ion to make.The silver ion that organosilicon material discharges has antibacterial action, can prevent growing of antibacterial.
This utility model also has following embodiment:
Described lid inner top has holding tank, and described fungi-proofing pad is arranged in the described holding tank.
Be provided with connecting rope between described lid and the upper tube body.After can guaranteeing that lid takes off from upper tube body, lid is difficult for losing.
Movable connection structure between described lid and the upper tube body is a screw connection structure, comprises female thread that is positioned on the lid medial wall and the external screw thread that is positioned on the outer wall of upper tube body upper end, and described internal and external screw thread is suitable.
Transfusion duct in the slide core described in the utility model comprises along the axially extended axial transfusion of slide core duct and the radially transfusion duct of radially extending perforation along slide core, wherein, the described duct of radially infusing is positioned on the top cylinder of slide core, and described axial transfusion duct communicates with the hypomere duct of the duct of radially infusing, lower tube body respectively.
Compared with prior art, the utlity model has following significant effect:
(1) the fungi-proofing pad that is provided with in the lid set up of this utility model and the lid; can avoid the part that slide core is used for being connected with syringe when unused state to expose to air; thereby protect this part not contaminated; and the antibacterial action of fungi-proofing pad can further reduce the generation of antibacterial, thereby reduces the generation that phenomenon is infected in transfusion greatly.
(2) mouth of pipe employing Rule, upper end of the present utility model tapering interface, can with syringe front tab close fit, be subjected to the spring restoring force to do the time spent, can prevent that spring from popping up, thereby guarantee that syringe can not separate with infusion connector, makes things convenient for medical personnel's transfusion operation.
(3) this utility model is provided with O-ring seals on the slide core lower end flange, compares with existing set elastic sealing gasket, under the prerequisite that guarantees sealing effectiveness, can significantly reduce the resistance of slide core when moving down, thereby makes things convenient for medical worker's operation.
(4) fungi-proofing pad adopts the organosilicon material that can discharge silver ion to make, and silver ion has antibacterial action, can prevent growing of antibacterial.
(5) of the present utility model simple in structure, practical, can be widely used in each medical institutions.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is this utility model structural representation when being in unused state
Fig. 2 is this utility model structural representation when being in user mode.
The specific embodiment
As Fig. 1, shown in 2, it is a kind of fungi-proofing Needleless seal transfusion joint of this utility model, comprise upper tube body 1, lower tube body 2, slide core 3 and spring 4, the lower end of upper tube body 1 is connected with the upper end of lower tube body 2, the upper end overcoat that is lower tube body 2 is connected on the lower end of upper tube body 1, have the up-small and down-big two sections concentric ducts 11 that are used to install slide core 3 in the upper tube body 1,12, the top cylinder 31 of slide core 3 is corresponding adaptive with hypomere duct 12 with the epimere duct 11 of upper tube body 1 respectively with middle part cylinder 32,11 form step with 12 reducing places, hypomere duct in the epimere duct, slide core 3 top cylinders 31 are stuck on this step with the joint portion of middle part cylinder 32, spring 4 is coated on the bottom cylinder 33 of slide core 3, have up big and down small two sections concentric ducts 21 in the lower tube body 2,22, wherein, hypomere duct 22 is by two sections up big and down small concentric pylones 23,24 form, hypomere through hole 24 is used for being connected with tube for transfusion, the lower end of upper tube body 1 directly contacts in the joint portion of lower tube body 2 epimere ducts 11 with hypomere duct 12, spring 4 is between the epimere duct 21 and 22 joint portions, hypomere duct of cylinder 32 bottoms, the middle part of slide core 3 and lower tube body 2, but the transfusion duct that has the whole transfusion path of conducting in the slide core 3, upper tube body 1 are used for hypomere duct 12 hole walls of mounting spring 4 is provided with the exhaust structure that air in this duct 12 can be discharged.
Set up a lid 5 that is used to block the upper tube body 1 upper end mouth of pipe, be connected by movable connection structure between lid 5 and the upper tube body 1, in the present embodiment, movable connection structure between lid 5 and the upper tube body 1 is a screw connection structure, comprise female thread that is positioned on lid 5 medial walls and the external screw thread that is positioned on the upper tube body 1 upper end outer wall, internal and external screw thread is suitable.
Be provided with in the lid 5 and be used to prevent and the fungi-proofing pad 6 of syringe contact site bacteria breed that lid 5 inner tops have holding tank, fungi-proofing pad 6 is arranged in the holding tank, and in the present embodiment, fungi-proofing pad 6 adopts the organosilicon material that can discharge silver ion to make; The top of slide core 4 has projection 41, and the joint 7 of being convenient to the syringe front end is replaced slide core 4.
The upper end mouth of pipe of upper tube body 1 is Rule tapering interface, and this interface is used for being connected with syringe front tab 7 close fit, referring to Fig. 2; The lower end of slide core 3 has flange 34, and flange 34 is suitable with the epimere through hole 23 in lower tube body 2 hypomere ducts 22, has annular mounting groove on these flange 34 side circumference, and dress is used to the O shape silicone rubber O-ring 45 that prevents that medicinal liquid from leaking in the mounting groove.
In the present embodiment, exhaust structure comprises the steam vent of being located on 12 hole walls of upper tube body 1 hypomere duct 13, the exhaust passage 71 that is in upper tube body 1 and lower tube body 2 connecting portions, and exhaust passage 71 communicates with the external world, and steam vent 13 is communicated with exhaust passage 71.Upper tube body 1 and lower tube body 2 be by being threaded, and exhaust structure is positioned at the top of upper tube body 1 and lower tube body 2 screw connection structures, and wherein, exhaust passage 71 is annular spaces, and steam vent 13 can be offered a plurality of along hypomere duct 11 hole walls.
Transfusion duct integral body in the slide core 4 is "T"-shaped, comprise along slide core 4 axially extended axial transfusion ducts 41 and the radially transfusion duct 42 of radially extending perforation along slide core 4, wherein, the duct 42 of radially infusing is positioned on the top cylinder 31 of slide core 4, and the duct 41 of axially infusing communicates with the hypomere duct 22 of the duct 42 of radially infusing, lower tube body 2 respectively.
This utility model also is provided with connecting rope 8 between lid 5 and upper tube body 1.Have draw-in groove at the side circumference of slide core 4 top cylinders 31 and the side circumference of middle part cylinder 32, be separately installed with O shape silicone rubber O-ring 9,10 in the draw-in groove.
Has an annular groove 26 in the bottom of lower tube body 2, has screw thread on the cell wall of annular groove 26, lower tube body 2 hypomere ducts 22 form a body and stretch out from the lower end of lower tube body 2, and annular groove 26 is positioned at the periphery in hypomere duct 22, and annular groove 26, hypomere through hole 24 and tube for transfusion joint are suitable.
Referring to Fig. 2, use of the present utility model is: when being in unused state, lid is positioned at the top of upper tube body, and the silver ion that fungi-proofing pad discharged can sterilize to the slide core top and the upper tube body upper end mouth of pipe, has guaranteed the sanitary condition with the syringe connecting portion; In use, take off lid, the joint of syringe front end is replaced slide core, slide core moves down the upper and lower section through hole joint portion that flange on the slide core lower end is fastened on lower tube body hypomere duct, and at this moment, the duct of radially infusing of slide core is positioned at the hypomere duct of upper tube body fully, medicinal liquid flows in the hypomere duct of upper tube body, behind radially infuse duct and axial transfusion duct, flow into tube for transfusion that the lower tube body lower end is connected in, import at last in patient's body.
Embodiment of the present utility model is not limited thereto, according to foregoing of the present utility model, ordinary skill knowledge and customary means according to this area, do not breaking away under the above-mentioned basic fundamental thought of this utility model prerequisite, movable connection structure has numerous embodiments between concrete structure, exhaust structure and the lid in the duct of infusing in this utility model slide core, the upper tube body; Fungi-proofing pad also can adopt other material with bactericidal action to make.Therefore, this utility model can also be made modification, replacement or the change of other various ways, all drops within this utility model rights protection scope.
Claims (10)
1. fungi-proofing Needleless seal transfusion joint, comprise upper tube body, lower tube body, slide core and spring, the lower end of described upper tube body is connected with the upper end of lower tube body, have the up-small and down-big two sections concentric ducts that are used to install slide core in the described upper tube body, the top cylinder of described slide core and middle part cylinder respectively with upper tube body on, hypomere duct correspondence is adaptive, described spring overcoat is on the cylinder of the bottom of slide core, have up big and down small two sections concentric ducts in the described lower tube body, described spring be positioned at the cylinder bottom, middle part of slide core and lower tube body on, between the joint portion, hypomere duct; But the transfusion duct that has the whole transfusion path of conducting in the described slide core; The hypomere duct hole wall that described upper tube body is used for mounting spring is provided with the exhaust structure that air in this duct can be discharged, it is characterized in that: set up a lid that is used to block the upper tube body upper end mouth of pipe, be connected by movable connection structure between described lid and the upper tube body, be provided with the fungi-proofing pad that is used to prevent with syringe contact site bacteria breed in the described lid.
2. fungi-proofing Needleless seal transfusion joint according to claim 1 is characterized in that: the upper end mouth of pipe of described upper tube body is to be used for Rule tapering interface of being connected with syringe front tab close fit.
3. fungi-proofing Needleless seal transfusion joint according to claim 1 and 2, it is characterized in that: the upper end overcoat of described lower tube body is connected on the lower end of upper tube body, the lower end of described upper tube body directly contacts the joint portion in the upper and lower sector hole of described lower tube body road, the lower end of described slide core has flange, the hypomere duct of described flange and lower tube body is suitable, have annular mounting groove on this flange side circumference, dress is used to the O shape silicone rubber O-ring that prevents that medicinal liquid from leaking in the described mounting groove.
4. fungi-proofing Needleless seal transfusion joint according to claim 3, it is characterized in that: described lower tube body hypomere duct is made up of two sections up big and down small concentric pylones, wherein, the hypomere through hole is used for being connected with tube for transfusion, and described slide core moves down the flange that makes described slide core and is stuck on the joint portion of these two sections through holes.
5. fungi-proofing Needleless seal transfusion joint according to claim 1, it is characterized in that: described exhaust structure comprises the steam vent of being located on the hole wall of upper tube body hypomere duct, the exhaust passage that is in upper tube body and lower tube body connecting portion, described exhaust passage communicates with the external world, and described steam vent is communicated with the exhaust passage.
6. fungi-proofing Needleless seal transfusion joint according to claim 1 is characterized in that: described fungi-proofing pad adopts the organosilicon material that can discharge silver ion to make.
7. fungi-proofing Needleless seal transfusion joint according to claim 1 is characterized in that: described lid inner top has holding tank, and described fungi-proofing pad is arranged in the described holding tank.
8. fungi-proofing Needleless seal transfusion joint according to claim 1, it is characterized in that: the movable connection structure between described lid and the upper tube body is a screw connection structure, comprise female thread that is positioned on the lid medial wall and the external screw thread that is positioned on the outer wall of upper tube body upper end, described internal and external screw thread is suitable.
9. fungi-proofing Needleless seal transfusion joint according to claim 1, it is characterized in that: the transfusion duct in the described slide core comprises along the axially extended axial transfusion of slide core duct and the radially transfusion duct of radially extending perforation along slide core, wherein, the described duct of radially infusing is positioned on the top cylinder of slide core, and described axial transfusion duct communicates with the hypomere duct of the duct of radially infusing, lower tube body respectively.
10. fungi-proofing Needleless seal transfusion joint according to claim 1 is characterized in that: be provided with connecting rope between described lid and the upper tube body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205383197U CN201806995U (en) | 2010-09-19 | 2010-09-19 | Germproof needleless closed infusion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205383197U CN201806995U (en) | 2010-09-19 | 2010-09-19 | Germproof needleless closed infusion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201806995U true CN201806995U (en) | 2011-04-27 |
Family
ID=43889953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205383197U Expired - Lifetime CN201806995U (en) | 2010-09-19 | 2010-09-19 | Germproof needleless closed infusion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201806995U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108079398A (en) * | 2016-11-21 | 2018-05-29 | 善德生化科技股份有限公司 | Medical infusion joint |
| CN109475731A (en) * | 2016-07-06 | 2019-03-15 | 施曼信医疗Asd公司 | Closed system conduit exhaust cap |
-
2010
- 2010-09-19 CN CN2010205383197U patent/CN201806995U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109475731A (en) * | 2016-07-06 | 2019-03-15 | 施曼信医疗Asd公司 | Closed system conduit exhaust cap |
| US11202897B2 (en) | 2016-07-06 | 2021-12-21 | Smiths Medical Ads, Inc. | Closed system catheter vent cap |
| CN109475731B (en) * | 2016-07-06 | 2022-02-25 | 施曼信医疗Asd公司 | Closed system conduit vent cap |
| CN108079398A (en) * | 2016-11-21 | 2018-05-29 | 善德生化科技股份有限公司 | Medical infusion joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103721321B (en) | A kind of automatic fitration syringe | |
| CN202342562U (en) | Automatically exhausting medical intravenous infusion set | |
| CN101940807A (en) | Automatic exhaust medicinal intravenous infusion set | |
| CN202920736U (en) | Disposable infusion apparatus capable of cutting off liquid automatically | |
| CN104474603A (en) | Self-exhausting, liquid-stopping and liquid-purifying infusion apparatus and safe infusion method thereof | |
| CN201806995U (en) | Germproof needleless closed infusion joint | |
| CN203609751U (en) | Countercurrent-resistant medical connector | |
| CN101961514B (en) | Integrated bacteria-proof needle-less airtight infusion joint | |
| CN114870166B (en) | Exhaust joint | |
| CN201880205U (en) | Integrated germproof needle-less closed transfusion joint | |
| CN103830795A (en) | Disposable automatic liquid stopping infusion set | |
| CN203043149U (en) | Needling prevention venous indwelling needle | |
| CN204709506U (en) | A kind of stop liquid from aerofluxus can liquid transfusion device only | |
| CN109550115A (en) | A kind of reverse syringe of the combination of self-regulating function | |
| CN202052122U (en) | Disposable lightproof transfusion set | |
| CN202961385U (en) | Empty prevention filter for infusion set | |
| CN201423062Y (en) | Liquid medicine intercepting and keeping infusion apparatus | |
| CN204033891U (en) | A kind of disposable chloral hydrate retention enema device | |
| CN203090068U (en) | Drip chamber capable of automatically exhausting and stopping liquid and infusion set with drip chamber capable of automatically exhausting and stopping liquid | |
| CN204699151U (en) | A kind of being more suitable for rescues the transfusion drip tube device used | |
| CN104740733A (en) | Safe syringe needle capable of being automatically scrapped | |
| CN217745210U (en) | Dropping funnel for infusion apparatus | |
| CN211798049U (en) | Anesthesia needle for anesthesia department doctor | |
| CN204017001U (en) | A kind of quantitatively-controlled type automatic liquid-stopping transfusion apparatus | |
| CN206995546U (en) | A kind of closed low dose transfusion set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110427 |
|
| CX01 | Expiry of patent term |