CN101961514B - Integrated bacteria-proof needle-less airtight infusion joint - Google Patents
Integrated bacteria-proof needle-less airtight infusion joint Download PDFInfo
- Publication number
- CN101961514B CN101961514B CN2010105265867A CN201010526586A CN101961514B CN 101961514 B CN101961514 B CN 101961514B CN 2010105265867 A CN2010105265867 A CN 2010105265867A CN 201010526586 A CN201010526586 A CN 201010526586A CN 101961514 B CN101961514 B CN 101961514B
- Authority
- CN
- China
- Prior art keywords
- tube body
- elasticity
- barrel mast
- 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.)
- Active
Links
Images
Abstract
The invention discloses an integrated bacteria-proof needle-less airtight infusion joint, which comprises an upper tube body, a lower tube body and an elastic movable core. The upper tube body is provided with a small upper-section pore channel and a large lower-section pore channel which are concentric; the lower tube body is provided with a large upper-section pore channel and a small lower-section pore channel which are concentric; the lower end of the upper tube body is connected with the upper-section pore channel of the lower tube body; the elastic movable core comprises an integrally-formed elastic cylinder and a movable end; and an infusion channel is formed inside the elastic movable core and used for communicating the upper tube body with the lower tube body; the upper and lower end parts of the movable end are correspondingly matched with the upper-section and lower-section pore channels of the upper tube body respectively; the elastic cylinder is an elastic hollow cylinder of which the height can be compressed along the axial direction; and the bottom of the elastic cylinder is pressed against the jointed part of the upper-section and lower-section pore channels of the lower tube body. The integrated bacteria-proof needle-less airtight infusion joint has a simple structure, is easy to manufacture and convenient to operate, saves materials and can prevent breeding bacteria.
Description
Technical field
The present invention relates to a kind of medical assistance apparatus, particularly a kind of integrated 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, makes up a prescription, a series of clinical manipulations such as injection, transfusion, blood transfusion, blood drawing all no longer need use scalp acupuncture puncture heparin lock, and the connection infusion channel only adopts 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 the transfusion path in the joint; Seal is relatively poor, causes medicinal liquid to leak easily; Venous return phenomenon etc. can appear.
Patent of invention " 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.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, be easy to manufacture, save material, and the fungi-proofing Needleless seal transfusion joint of handled easily.
Technical scheme of the present invention can realize through following technical measures:
A kind of integrated fungi-proofing Needleless seal transfusion joint comprises upper tube body and lower tube body, has up-small and down-big two sections concentric ducts in the said upper tube body; Have up big and down small two sections concentric ducts in the said lower tube body; The lower end of said upper tube body is connected with the epimere duct of lower tube body; Also comprise the elasticity slide core; Said elasticity slide core comprises one-body molded elasticity barrel mast of processing and movable termination, and said elasticity slide core inside is provided with infusion channel and is communicated with said upper tube body and lower tube body; The upper and lower end portion of said movable termination is corresponding adaptive with the upper and lower sector hole road of upper tube body respectively; Said elasticity barrel mast is the empty cylindrical shell of the elasticity that can compress its height vertically, and the bottom of said elasticity barrel mast is butted on the junction, upper and lower two sector hole road of said lower tube body.
The junction in the upper and lower sector hole road of said lower tube body is a step, and the bottom of elasticity barrel mast is chimeric fixing through the groove of being located on the step; Or through the lower end of upper tube body the flanging of roof pressure elasticity barrel mast bottom on step.
The axial section of the barrel of said elasticity barrel mast is wavy, thereby this elasticity barrel mast can compress the height of its barrel mast vertically.
The outer mural margin of the upper and lower end of said movable termination is equipped with and is used to the annular ridge that prevents that medicinal liquid from leaking, and annular ridge closely is contacted with the upper and lower sector hole road inwall of upper tube body.
Said movable termination is and the integrated solid of elasticity barrel mast; The movable end centriciput setting port of radially infusing; The axial transfusion port that bottom, movable termination is provided with and elasticity barrel mast inner chamber connects; Said radially port, axial port and elasticity barrel mast inner chamber connect and form infusion channel, communicate with the hypomere duct of lower tube body.
Said movable termination is by forming with integrated tubular body of elasticity barrel mast and hard core body; The hard core body tightly is embedded in the tubular body; Hard core body and tubular body middle part are provided with the transfusion port that radially connects; The axial transfusion port that hard core body bottom is provided with and elasticity barrel mast inner chamber connects, said radially port, axial port and elasticity barrel mast inner chamber connect and form infusion channel, communicate with the hypomere duct of lower tube body.
The hypomere duct hole wall of said upper tube body is provided with can be with the exhaust structure of air discharge in this duct; Said exhaust structure comprises steam vent on the hypomere duct hole wall of being located at upper tube body, is in the exhaust passage of upper tube body and lower tube body connecting portion; Said exhaust passage communicates with the external world, and said steam vent is communicated with the exhaust passage.
Set up lid; Be connected through movable connection structure between said lid and the upper tube body, in lid, be provided with fungi-proofing pad, fungi-proofing pad can prevent growing of antibacterial in the confined space of lid; Said lid inner top has holding tank, and said fungi-proofing pad is arranged in the said holding tank.
Said elasticity barrel mast also is with a spring outward, and the junction, upper and lower two sector hole road of said bottom, movable termination and lower tube body is withstood at the two ends of said spring respectively.
Compared with prior art, the present invention has following significant effect:
1. the elasticity slide core in the infusion connector of the present invention has replaced original spring and inflexible slide core; Function as the conducting transfusion; Simultaneously, be used to replace the O RunddichtringO in original infusion connector, play the function of leakproof because the leakproof convex line directly is set on the lateral wall of the barrel mast of this elasticity slide core; Therefore, to compare original infusion connector simple for processing technology;
2. in addition; Owing to can on sealing ring, produce spue line in the manufacturing process of original O RunddichtringO, and the existence meeting of spue line generates defectives such as dislocation, burr, starved on the surface of O RunddichtringO, with the danger that directly causes leakage; And the present invention is employed in the mode that the barrel mast edge of elasticity slide core is provided with convex line; Not only play the function of leakproof, can avoid producing spue line owing in the generative process of convex line simultaneously, thereby further guarantee leakproof and seal; Simultaneously; Because the lower end barrel mast of this elasticity slide core is clamped in the upper tube body of this infusion connector and the junction of lower tube body, thereby prevents two slit leakages between the cylindrical shell, thereby adopts this structure to replace the O RunddichtringO in original infusion connector;
3. of the present invention simple in structure, be easy to produce and install, save material, practical, can be adaptable across each medical institutions.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment one of the fungi-proofing Needleless seal transfusion joint of the present invention;
Fig. 2 is the user mode figure of specific embodiment one shown in Figure 1;
Fig. 3 is the structural representation of specific embodiment two of the present invention;
Fig. 4 is the user mode figure of specific embodiment two shown in Figure 3;
Fig. 5 is the structural representation of specific embodiment three of the present invention;
Fig. 6 is the structural representation of specific embodiment four of the present invention.
The specific embodiment
Show a specific embodiment of the integrated fungi-proofing Needleless seal transfusion joint of the present invention like Fig. 1, Fig. 2; Comprise upper tube body 1, lower tube body 2 and elasticity slide core 3; Have up-small and down-big two sections concentric ducts in the upper tube body 1, wherein epimere duct 11 is used for being connected with the syringe front end; Have up big and down small two sections concentric ducts in the lower tube body, wherein hypomere duct 22 is used for being connected with tube for transfusion; The lower end of upper tube body 1 is connected with the epimere duct 21 of lower tube body 2.Elasticity slide core 3 comprises one-body molded elasticity barrel mast of processing 33 and movable termination, and elasticity slide core inside is provided with infusion channel and is communicated with said upper tube body and lower tube body; The upper part 31 of movable termination is corresponding not adaptive with hypomere duct 12 with the epimere duct 11 of upper tube body with end portion 32; Elasticity barrel mast 33 is butted on the epimere duct 21 of lower tube body and the junction in hypomere duct 22 for the empty cylindrical shell of the elasticity that can compress its height vertically, the bottom of elasticity barrel mast 33.
The movable termination of this elasticity slide core 3 and elasticity barrel mast 33 all adopt elastic silica gel to be made.The junction in the upper and lower sector hole road of lower tube body is a step 23, and step 23 places are provided with an annular groove 24, and the bottom of elasticity barrel mast 3 is chimeric fixing through the groove of being located on the step 24.Perhaps, also can adopt mode as shown in Figure 6: the flanging 34 of these elasticity barrel mast 33 bottoms of the lower end roof pressure of upper tube body 1 is on step 23.
The outer mural margin of the upper and lower end of movable termination is equipped with and is used to the annular ridge 9,10 that prevents that medicinal liquid from leaking, and annular ridge closely is contacted with the upper and lower sector hole road inwall of upper tube body.
Movable termination is and elasticity barrel mast 33 integrated solids; The movable end centriciput setting port 42 of radially infusing; The axial transfusion port 43 that bottom, movable termination is provided with and elasticity barrel mast inner chamber connects; Radially port 42, axial port 43 and elasticity barrel mast inner chamber 44 connect and form infusion channel, communicate with the hypomere duct 22 of lower tube body 2.
Set up one be used to block the upper tube body 1 upper end mouth of pipe lid 5; Be connected through 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, comprises the female thread that is positioned on lid 5 medial walls and is positioned at the external screw thread on the upper tube body 1 upper end outer wall, and internal and external screw thread is suitable.The present invention also is provided with connecting rope 8 between lid 5 and upper tube body 1.
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 process; 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, and referring to Fig. 2, the top cylinder of elasticity slide core 3 has convexity 41, and the joint 7 of being convenient to the syringe front end is replaced elasticity slide core 3.The mouth of pipe in the epimere duct 11 of upper tube body is to be used for Rule tapering interface of being connected with syringe front tab close fit.
Referring to Fig. 2; The use of the specific embodiment of the invention one 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 carry out antibacterial to the elasticity 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 the elasticity slide core, and the elasticity slide core moves down until the middle part of slide core barrel mast and leaves the step in this upper tube body, and the bottom of elasticity barrel mast also support with lower tube body in prevent leakage in the groove of step.At this moment; The duct of radially infusing of elasticity slide core is positioned at the hypomere duct of upper tube body fully, and medicinal liquid flows in the hypomere duct of upper tube body, behind radially the infuse duct and the duct of axially infusing; Flow into tube for transfusion that the lower tube body lower end is connected in, import at last in patient's body.
As another kind of improvement the of the present invention; Show second kind of specific embodiment of the present invention like Fig. 3 and Fig. 4; In this embodiment in order to increase the elastic force of elasticity barrel mast 33; Outside the elasticity barrel mast, also be with a spring 4, withstand respectively in the groove 24 in the step of junction, upper and lower two sector hole road of end portion 32 and lower tube body of said movable termination at the two ends of spring 4.
As the third improved procedure of the present invention; As shown in Figure 5; Movable termination is by forming with hard core body 312 with the integrated tubular body 311 of elasticity barrel mast; Hard core body 312 tightly is embedded in the tubular body 311, and hard core body 312 and tubular body 311 middle parts are provided with the transfusion port 42 that radially connects, the axial transfusion port 43 that hard core body bottom is provided with and elasticity barrel mast inner chamber connects; Radially port 42, axial port 43 and elasticity barrel mast inner chamber 44 connect and form infusion channel, communicate with the hypomere duct of lower tube body.
Embodiment of the present invention is not limited thereto; Under the above-mentioned basic fundamental thought of the present invention prerequisite;, all drop within the rights protection scope of the present invention modification, replacement or the change of other various ways that content of the present invention is made according to the ordinary skill knowledge of this area and customary means.
Claims (7)
1. an integrated fungi-proofing Needleless seal transfusion joint comprises upper tube body and lower tube body, has up-small and down-big two sections concentric ducts in the said upper tube body; Have up big and down small two sections concentric ducts in the said lower tube body; The lower end of said upper tube body is connected with the epimere duct of lower tube body; It is characterized in that: also comprise the elasticity slide core; Said elasticity slide core comprises one-body molded elasticity barrel mast of processing and movable termination, and said elasticity slide core inside is provided with infusion channel and is communicated with said upper tube body and lower tube body; The upper and lower end portion of said movable termination is corresponding adaptive with the upper and lower sector hole road of upper tube body respectively; Said elasticity barrel mast is the empty cylindrical shell of the elasticity that can compress its height vertically, and the bottom of said elasticity barrel mast is butted on the junction, upper and lower two sector hole road of said lower tube body; Said movable termination is by forming with integrated tubular body of elasticity barrel mast and hard core body; The hard core body tightly is embedded in the tubular body; Hard core body and tubular body middle part are provided with the transfusion port that radially connects; Hard core body bottom is provided with the axial transfusion port that connects with elasticity barrel mast inner chamber, and the said transfusion port that radially connects, axially infuse port and elasticity barrel mast inner chamber connects the said infusion channel of formation, communicates with the hypomere duct of lower tube body; Said upper tube body has been set up lid, is connected through movable connection structure between said lid and the upper tube body, in lid, is provided with fungi-proofing pad.
2. integrated fungi-proofing Needleless seal transfusion joint according to claim 1; It is characterized in that: the junction in the upper and lower sector hole road of said lower tube body is a step, and the bottom of elasticity barrel mast is through being located at the chimeric flanging fixing or the roof pressure elasticity barrel mast bottom through the lower end of upper tube body of groove on the step on step.
3. integrated fungi-proofing Needleless seal transfusion joint according to claim 2, it is characterized in that: the axial section of the barrel of said elasticity barrel mast is wavy, thus this elasticity barrel mast compresses the height of its barrel mast vertically.
4. according to claim 1 or 3 described integrated fungi-proofing Needleless seal transfusion joints; It is characterized in that: the outer mural margin of the upper and lower end of said movable termination is equipped with and is used to the annular ridge that prevents that medicinal liquid from leaking, and annular ridge closely is contacted with the upper and lower sector hole road inwall of upper tube body.
5. integrated fungi-proofing Needleless seal transfusion joint according to claim 4; It is characterized in that: the hypomere duct inwall of said upper tube body is provided with can be with the exhaust structure of air discharge in this duct; Said exhaust structure comprises steam vent on the hypomere duct inwall of being located at upper tube body, is in the exhaust passage of upper tube body and lower tube body connecting portion; Said exhaust passage communicates with the external world, and said steam vent is communicated with the exhaust passage.
6. integrated fungi-proofing Needleless seal transfusion joint according to claim 5 is characterized in that: said lid inner top has holding tank, and said fungi-proofing pad is arranged in the said holding tank.
7. integrated fungi-proofing Needleless seal transfusion joint according to claim 6; It is characterized in that: said elasticity barrel mast also is with a spring outward, and the junction, upper and lower two sector hole road of said bottom, movable termination and lower tube body is withstood at the two ends of said spring respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105265867A CN101961514B (en) | 2010-10-29 | 2010-10-29 | Integrated bacteria-proof needle-less airtight infusion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105265867A CN101961514B (en) | 2010-10-29 | 2010-10-29 | Integrated bacteria-proof needle-less airtight infusion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101961514A CN101961514A (en) | 2011-02-02 |
| CN101961514B true CN101961514B (en) | 2012-08-22 |
Family
ID=43514683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105265867A Active CN101961514B (en) | 2010-10-29 | 2010-10-29 | Integrated bacteria-proof needle-less airtight infusion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101961514B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2013136889A1 (en) * | 2012-03-12 | 2015-08-03 | テルモ株式会社 | Blood channel connection device and blood bag system |
| CN203169727U (en) * | 2013-04-01 | 2013-09-04 | 英属维尔京群岛圣采科技投资有限公司 | Needle-free positive pressure joint |
| CN104815365A (en) * | 2015-05-20 | 2015-08-05 | 宁湘龙 | Medical needleless positive pressure joint |
| CN106421848B (en) * | 2016-10-14 | 2022-09-23 | 刘浩浩 | Disposable needleless infusion joint disinfection device |
| TWI623333B (en) * | 2016-11-21 | 2018-05-11 | Medical infusion connector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6299131B1 (en) * | 1998-10-05 | 2001-10-09 | Rymed Technologies, Inc. | Swabbable needleless injection port system having low reflux |
| CN101104094A (en) * | 2007-08-10 | 2008-01-16 | 张亚根 | Safety type artery and venous indwelling needle with airtight interface without needle |
| CN201061639Y (en) * | 2007-08-08 | 2008-05-21 | 孙东 | Non-needle enclosed transfusion joint |
| CN201061640Y (en) * | 2007-08-08 | 2008-05-21 | 孙东 | Non-needle enclosed transfusion joint |
| CN201061638Y (en) * | 2007-08-08 | 2008-05-21 | 孙东 | Non-needle enclosed transfusion joint |
| CN201880205U (en) * | 2010-10-29 | 2011-06-29 | 李丹青 | Integrated germproof needle-less closed transfusion joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004195016A (en) * | 2002-12-19 | 2004-07-15 | Top:Kk | Coupling device |
-
2010
- 2010-10-29 CN CN2010105265867A patent/CN101961514B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6299131B1 (en) * | 1998-10-05 | 2001-10-09 | Rymed Technologies, Inc. | Swabbable needleless injection port system having low reflux |
| CN201061639Y (en) * | 2007-08-08 | 2008-05-21 | 孙东 | Non-needle enclosed transfusion joint |
| CN201061640Y (en) * | 2007-08-08 | 2008-05-21 | 孙东 | Non-needle enclosed transfusion joint |
| CN201061638Y (en) * | 2007-08-08 | 2008-05-21 | 孙东 | Non-needle enclosed transfusion joint |
| CN101104094A (en) * | 2007-08-10 | 2008-01-16 | 张亚根 | Safety type artery and venous indwelling needle with airtight interface without needle |
| CN201880205U (en) * | 2010-10-29 | 2011-06-29 | 李丹青 | Integrated germproof needle-less closed transfusion joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101961514A (en) | 2011-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101961514B (en) | Integrated bacteria-proof needle-less airtight infusion joint | |
| US9289588B2 (en) | Connector against contrary flowing for medical treatment | |
| JP7280329B2 (en) | Closed IV access device with Y-port needle-free connector | |
| CA2275218C (en) | Positive flow valve | |
| CN103721321B (en) | A kind of automatic fitration syringe | |
| CN202605411U (en) | Medical needle-free positive pressure joint | |
| CN105597219A (en) | Double-cannula drainage tube | |
| CN201880205U (en) | Integrated germproof needle-less closed transfusion joint | |
| CN202982924U (en) | Needleless connecting assembly | |
| CN103721322A (en) | Filtering syringe | |
| CN201643153U (en) | Needleless medicine-feeding joint | |
| CN103736174A (en) | Two-way filtration syringe | |
| CN103830795A (en) | Disposable automatic liquid stopping infusion set | |
| CN201248965Y (en) | Medical connecting device | |
| CN101357250B (en) | Connecting device for medical purposes | |
| CN201061638Y (en) | Non-needle enclosed transfusion joint | |
| CN205586297U (en) | Needleless of taking one -way function adds medicine joint | |
| CN109498890A (en) | Positive pressure feather valve and no-needle transfusion connector | |
| CN201806995U (en) | Germproof needleless closed infusion joint | |
| CN202822287U (en) | Needles-free joint | |
| CN202961379U (en) | Needleless joint structure | |
| CN109045390A (en) | Positive pressure needle-free infusion connector | |
| CN203694265U (en) | Bidirectional filtering type injector | |
| CN206120741U (en) | Needleless mixes valve body of separation valve for liquid | |
| CN205163788U (en) | Positive -pressure needle -free connecting piece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |