CN105854120A - Remaining needle rubber plug locking mechanism - Google Patents
Remaining needle rubber plug locking mechanism Download PDFInfo
- Publication number
- CN105854120A CN105854120A CN201510248445.6A CN201510248445A CN105854120A CN 105854120 A CN105854120 A CN 105854120A CN 201510248445 A CN201510248445 A CN 201510248445A CN 105854120 A CN105854120 A CN 105854120A
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- China
- Prior art keywords
- plug
- collar
- catheter block
- groove
- projection
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Abstract
The invention discloses a remaining needle rubber plug locking mechanism, which comprises a catheter base, wherein a rubber plug and a clamping ring are arranged in the catheter base; a groove or a boss, which is distributed along the entire inner wall of the catheter base, is arranged on the inner wall of the catheter base; the rubber plug is integrally molded by a soft elastic material through a cylindrical body and an external conical body or a polygonal columnar body and a polygonal conical body; the clamping ring is made from hard plastic or a metal material or other materials and a boss or a groove, which is matched with the groove or the boss on the inner wall of the catheter base, is designed in a mode of surrounding the outer wall of the clamping ring; and an internal conical body inclined plane or a polygonal conical body inclined plane, which is mutually matched with the external conical body inclined plane or the polygonal conical body inclined plane, is arranged in the clamping ring, so that the rubber plug is firmly locked. The locking mechanism, on the medical aspect, can be widely applied to remaining needles, and by virtue of the locking mechanism, rubber plug structures of the remaining needles are further improved.
Description
Technical field
The present invention relates to a kind of belong to medical field remaining needle in terms of clinical disease patient, the improvement to remaining needle plug structure.
Background technology
In medicinal, existing remaining needle is generally mainly made up of catheter block, plug and needle tubing, is filled in by plug in catheter block, and needle tubing then punctures in plug.At present, the plug of common remaining needle when mounted, is essentially all and uses glue that plug and catheter block are pasted the mode of solidification.But, owing in process of production, needle tubing needs to use silicone oil lubrication, is very difficult to avoid completely silicone oil and pollutes the outer surface of plug.Once silicone oil pollutes the outer surface of plug, glue will be caused to lose efficacy, it is impossible to plug is clinged in catheter block.In Clinical practice, may result in plug landing, occur that leakage, blood outflow, air or pathogenic bacteria enter into the endovascular situation of clinical disease patient, the life security of clinical disease patient in serious harm.Simultaneously, the remaining needle of big specification this kind of plug mounting means uses after long time stored, owing to needle tubing external diameter is bigger, after pulling out needle tubing, the hole being punctured through plug by needle tubing can not be of completely closed, and leakage, blood outflow, air or pathogenic bacteria can be occurred too to enter into the endovascular malpractice of clinical disease patient when normal infusion or high pressure infuser.
Summary of the invention
The invention aims to provide a kind of remaining needle plug retaining mechanism, in the way of overcoming existing remaining needle to paste solidification because of plug and catheter block by glue, occurred leakage when plug landing easily causes in Clinical practice normal infusion or high pressure infuser, blood outflow, air or pathogenic bacteria enter into the endovascular situation of clinical disease patient and the drawback of serious harm clinical disease patient's life security.
The object of the present invention is achieved like this: the present invention includes catheter block, plug and collar are installed in described catheter block, described catheter block inwall has a groove arranged along whole inwall or projection, described plug is used soft elastic material one-body molded by cylinder and cylindrical cone, and the cylinder of described plug and cylindrical cone transition position joined integrally have a step, described collar uses rigid plastics or metal material or other materials manufacture the outer wall around described collar to be designed with projection or the groove that groove or projection with described catheter block inwall mutually match, the inner circle cone inclined-plane worked in coordination for the cylindrical cone inclined-plane with described plug in the inside of described collar, and the cylindrical cone cone inclined-plane maximum outside diameter of described plug is bigger than the inner circle cone maximum outside diameter of described collar；Described plug is filled in described catheter block, and described collar is pressed toward described plug direction in described catheter block, make the groove of described catheter block inwall or the projection of protruding and described collar or groove mutually link closely, thus described plug is locked.
nullFurther，The purpose of the present invention is it is also possible that realize: the present invention includes catheter block，Plug and collar are installed in described catheter block，Described catheter block inwall has a groove arranged along whole inwall or projection，Described plug is used soft elastic material one-body molded by cylinder and cylindrical cone，And the cylinder of described plug and cylindrical cone transition position joined integrally are without step，The maximum outside diameter on the cylindrical cone inclined-plane of the most described plug is equal to the cylinder external diameter of described plug，Described collar uses rigid plastics or metal material or other materials manufacture the outer wall around described collar to be designed with projection or the groove that groove or projection with described catheter block inwall mutually match，The inner circle cone inclined-plane worked in coordination for the cylindrical cone inclined-plane with described plug in the inside of described collar，And described plug cylindrical cone inclined-plane maximum outside diameter bigger than the inner circle cone maximum outside diameter of described collar；Described plug is filled in described catheter block, and described collar is pressed toward described plug direction in described catheter block, make the groove of described catheter block inwall or the projection of protruding and described collar or groove mutually link closely, thus described plug is locked.
Further, the purpose of the present invention can also so realize: the present invention includes catheter block, plug and collar are installed in described catheter block, described catheter block inwall has a groove arranged along whole inwall or projection, described plug is used soft elastic material one-body molded by cylindrical cone, described collar uses rigid plastics or metal material or other materials manufacture the outer wall around described collar to be designed with projection or the groove that groove or projection with described catheter block inwall mutually match, the inner circle cone inclined-plane worked in coordination for the cylindrical cone inclined-plane with described plug in the inside of described collar, and the cylindrical cone inclined-plane maximum outside diameter of described plug is bigger than the inner circle cone maximum outside diameter of described collar；Described plug is filled in described catheter block, and described collar is pressed toward described plug direction in described catheter block, make the groove of described catheter block inwall or the projection of protruding and described collar or groove mutually link closely, thus described plug is locked.
Present configuration is simple, and easy to operate, safe and reliable, production cost is low.Described plug completely dispenses with glue stickup with the combination of described catheter block, it is ensured that in Clinical practice, described plug is not fall off, and is prevented effectively from and occurs that leakage, blood outflow, air or pathogenic bacteria enter into the endovascular malpractice of clinical disease patient.And described plug is one-body molded, good seal performance.Described plug has a cone inclined-plane, and when in described catheter block, pressure experienced is the biggest, the hole Guan Bi that described plug stays after being punctured by needle tubing is the best.It in terms of medical treatment in can be widely applied to remaining needle, the plug structure of remaining needle is made improvement further.
Accompanying drawing explanation
Fig. 1, it is based on the present invention and proposes the structural representation of one of embodiment；
Fig. 2, it is based on the present invention and proposes the STRUCTURE DECOMPOSITION figure of one of embodiment；
Fig. 3, it is partial enlarged drawing at Figure 1A；
Fig. 4, it is based on the structural representation that the present invention proposes the two of embodiment；
Fig. 5, it is based on the STRUCTURE DECOMPOSITION figure that the present invention proposes the two of embodiment；
Fig. 6, it is based on the structural representation that the present invention proposes the three of embodiment；
Fig. 7, it is based on the STRUCTURE DECOMPOSITION figure that the present invention proposes the three of embodiment.
Detailed description of the invention
With embodiment, the structure of the present invention is further described below in conjunction with the accompanying drawings:
Labelling in figure: 1, catheter block；2, plug；3, collar；4, needle tubing.
In Fig. 1 to Fig. 3, the present invention is by catheter block 1, plug 2 and collar 3 are constituted, described catheter block 1 inwall has a groove arranged along whole inwall or projection, described plug 2 is used soft elastic material one-body molded by cylinder and cylindrical cone, and the cylinder of described plug 2 and cylindrical cone transition position joined integrally have a step, described collar 3 use rigid plastics or metal material or other materials manufacture the outer wall around described collar 3 to be designed with projection or groove that groove or projection with described catheter block 1 inwall mutually match, the inner circle cone inclined-plane worked in coordination for the cylindrical cone inclined-plane with described plug 2 in the inside of described collar 3, and the cylindrical cone inclined-plane maximum outside diameter of described plug 2 is bigger than the inner circle cone maximum outside diameter of described collar 3.
nullIn figures 4 and 5，The present invention is by catheter block 1、Plug 2 and collar 3 are constituted，Described catheter block 1 inwall has a groove arranged along whole inwall or projection，Described plug 2 is used soft elastic material one-body molded by cylinder and cylindrical cone，And the cylinder of described plug 2 and cylindrical cone transition position joined integrally are without step，The maximum outside diameter on the cylindrical cone inclined-plane of the most described plug 2 is equal to the cylinder external diameter of described plug，Described collar 3 use rigid plastics or metal material or other materials manufacture the outer wall around described collar 3 to be designed with projection or groove that groove or projection with described catheter block 1 inwall mutually match，The inner circle cone inclined-plane worked in coordination for the cylindrical cone inclined-plane with described plug 2 in the inside of described collar 3，And the cylindrical cone inclined-plane maximum outside diameter of described plug 2 is bigger than the inner circle cone maximum outside diameter of described collar 3.
In figure 6 and figure 7, the present invention is by catheter block 1, plug 2 and collar 3 are constituted, described catheter block 1 inwall has a groove arranged along whole inwall or projection, described plug 2 is used soft elastic material one-body molded by cylindrical cone, described collar 3 use rigid plastics or metal material or other materials manufacture the outer wall around collar 3 to be designed with projection or groove that groove or projection with described catheter block 1 inwall mutually match, the inner circle cone inclined-plane worked in coordination for the cylindrical cone inclined-plane with described plug 2 in the inside of described collar 3, and the cylindrical cone inclined-plane maximum outside diameter of described plug 2 is bigger than the inner circle cone maximum outside diameter of described collar 3.
The present invention is so to install and operation: filled in by described plug 2 in described catheter block 1, then, described collar 3 is pressed toward described plug 2 direction in described catheter block 1, make the groove of described catheter block 1 inwall or the projection of protruding and described collar 3 or groove mutually link closely, thus described plug 2 is locked.
The present invention is installing and during operation, the cylindrical cone maximum outside diameter of described plug 2 is more than the inner circle cone maximum inner diameter of described collar 3, do not fall at the cylindrical cone maximum outside diameter of described plug 2 or exceed the lateral cross section of described collar 3, puncture after the needle tubing 4 of described plug 2 when pulling out, when being under pressure inside remaining needle, described plug 2 moves toward described collar 3 direction, the cylindrical cone inclined-plane of described plug 2 will extruding by the interior circle inclined-plane of described collar 3, punctured left hole by needle tubing 4 on described plug 2 also preferably to be closed, thus reach normal infusion or high pressure infuser does not occur leakage, blood outflow, air or pathogenic bacteria enter into the good result of the vascular medical accident of clinical disease patient.
Above-described is only the preferred embodiments of the present invention.It should be pointed out that, to those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to make some modification and improvement, this is also considered as belonging to protection scope of the present invention.Such as, the cylinder of the above plug 2 can also be polygon cylinder, and the cylindrical cone of described plug 2 can also be polygonal pyramid, and the inner circle cone of described collar 3 can also be polygonal pyramid.
Claims (3)
- null1. a remaining needle plug retaining mechanism，Include catheter block (1)，It is characterized in that: plug (2) and collar (3) are installed in described catheter block (1)，Described catheter block (1) inwall has a groove arranged along whole inwall or projection，Described plug (2) is used soft elastic material one-body molded by cylinder and cylindrical cone，And the cylinder of described plug (2) and cylindrical cone transition position joined integrally have a step，Described collar (3) uses rigid plastics or metal material or other materials manufacture the outer wall around described collar (3) to be designed with projection or the groove that groove or projection with described catheter block (1) inwall mutually match，The inner circle cone inclined-plane worked in coordination for the cylindrical cone inclined-plane with described plug (2) in the inside of described collar (3)，And the cylindrical cone inclined-plane maximum outside diameter of described plug (2) is bigger than the inner circle cone maximum outside diameter of described collar (3)；Described plug (2) is filled in described catheter block (1), and described collar (3) is pressed toward described plug (2) direction in described catheter block (1), make the groove of described catheter block (1) inwall or the projection of protruding and described collar (3) or groove mutually link closely, thus described plug (2) is locked.
- null2. a remaining needle plug retaining mechanism，Include catheter block (1)，It is characterized in that: plug (2) and collar (3) are installed in described catheter block (1)，Described catheter block (1) inwall has a groove arranged along whole inwall or projection，Described plug (2) is used soft elastic material one-body molded by cylinder and cylindrical cone，And the cylinder of described plug (2) and cylindrical cone transition position joined integrally are without step，The maximum outside diameter on the cylindrical cone inclined-plane of described plug (2) is equal to the cylinder external diameter of described plug (2)，Described collar (3) uses rigid plastics or metal material or other materials manufacture the outer wall around described collar (3) to be designed with projection or the groove that groove or projection with described catheter block (1) inwall mutually match，The inner circle cone inclined-plane worked in coordination for the cylindrical cone inclined-plane with described plug (2) in the inside of described collar (3)，And the cylindrical cone inclined-plane maximum outside diameter of described plug (2) is bigger than the inner circle cone maximum outside diameter of described collar (3)；Described plug (2) is filled in described catheter block (1), and described collar (3) is pressed toward described plug (2) direction in described catheter block (1), make the groove of described catheter block (1) inwall or the projection of protruding and described collar (3) or groove mutually link closely, thus described plug (2) is locked.
- 3. a remaining needle plug retaining mechanism, include catheter block (1), it is characterized in that: plug (2) and collar (3) are installed in described catheter block (1), described catheter block (1) inwall has a groove arranged along whole inwall or projection, described plug (2) is used soft elastic material one-body molded by cylindrical cone, described collar (3) uses rigid plastics or metal material or other materials manufacture the outer wall around collar (3) to be designed with projection or the groove that groove or projection with described catheter block (1) inwall mutually match, the inner circle cone inclined-plane worked in coordination for the cylindrical cone inclined-plane with described plug (2) in the inside of described collar (3), and the cylindrical cone inclined-plane maximum outside diameter of described plug (2) is bigger than the inner circle cone maximum outside diameter of described collar (3)；Described plug (2) is filled in described catheter block (1), and described collar (3) is pressed toward described plug (2) direction in described catheter block (1), make the groove of described catheter block (1) inwall or the projection of protruding and described collar (3) or groove mutually link closely, thus described plug (2) is locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510248445.6A CN105854120A (en) | 2015-05-16 | 2015-05-16 | Remaining needle rubber plug locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510248445.6A CN105854120A (en) | 2015-05-16 | 2015-05-16 | Remaining needle rubber plug locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105854120A true CN105854120A (en) | 2016-08-17 |
Family
ID=56623609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510248445.6A Pending CN105854120A (en) | 2015-05-16 | 2015-05-16 | Remaining needle rubber plug locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105854120A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107789703A (en) * | 2017-11-16 | 2018-03-13 | 广东龙心医疗器械有限公司 | The indwelling structure and remaining needle of a kind of remaining needle |
| CN108992738A (en) * | 2018-08-11 | 2018-12-14 | 闫红魁 | Plug assembly and the remaining needle without glue connection is isolated |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040019334A1 (en) * | 2002-07-26 | 2004-01-29 | Kawasumi Laboratories, Inc. | Needle guard and capped needle guard and guarded winged needle assembly |
| DE102006013096A1 (en) * | 2006-03-20 | 2007-09-27 | Armin Haimerl | Steel canula for e.g. puncture of vein, has puncture canula, which is arranged in permanent venous catheter in adjustable manner, and additional dilation canula arranged between venous catheter and puncture canula in adjustable manner |
| CN201481962U (en) * | 2009-08-24 | 2010-05-26 | 成都峻峰科技开发有限公司 | Flexible connection non-return venous indwelling needle |
| CN101879341A (en) * | 2010-06-24 | 2010-11-10 | 张亚平 | Safety venous indwelling needle with needleless interface positive-pressure closing valve |
| CN201727739U (en) * | 2010-06-12 | 2011-02-02 | 周小琴 | Transfusion plug |
| CN204017016U (en) * | 2014-07-15 | 2014-12-17 | 上海双鸽实业有限公司 | Disposable retention needle with automatic retracting needle tip |
| CN204158809U (en) * | 2014-10-10 | 2015-02-18 | 苏州林华医疗器械有限公司 | A kind of catheter block of venous detaining needle |
| CN204219516U (en) * | 2014-10-11 | 2015-03-25 | 深圳市安特高科实业有限公司 | high pressure remaining needle |
| CN204766832U (en) * | 2015-05-16 | 2015-11-18 | 广东龙心医疗器械有限公司 | Keep somewhere needle plug locking mechanism |
-
2015
- 2015-05-16 CN CN201510248445.6A patent/CN105854120A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040019334A1 (en) * | 2002-07-26 | 2004-01-29 | Kawasumi Laboratories, Inc. | Needle guard and capped needle guard and guarded winged needle assembly |
| DE102006013096A1 (en) * | 2006-03-20 | 2007-09-27 | Armin Haimerl | Steel canula for e.g. puncture of vein, has puncture canula, which is arranged in permanent venous catheter in adjustable manner, and additional dilation canula arranged between venous catheter and puncture canula in adjustable manner |
| CN201481962U (en) * | 2009-08-24 | 2010-05-26 | 成都峻峰科技开发有限公司 | Flexible connection non-return venous indwelling needle |
| CN201727739U (en) * | 2010-06-12 | 2011-02-02 | 周小琴 | Transfusion plug |
| CN101879341A (en) * | 2010-06-24 | 2010-11-10 | 张亚平 | Safety venous indwelling needle with needleless interface positive-pressure closing valve |
| CN204017016U (en) * | 2014-07-15 | 2014-12-17 | 上海双鸽实业有限公司 | Disposable retention needle with automatic retracting needle tip |
| CN204158809U (en) * | 2014-10-10 | 2015-02-18 | 苏州林华医疗器械有限公司 | A kind of catheter block of venous detaining needle |
| CN204219516U (en) * | 2014-10-11 | 2015-03-25 | 深圳市安特高科实业有限公司 | high pressure remaining needle |
| CN204766832U (en) * | 2015-05-16 | 2015-11-18 | 广东龙心医疗器械有限公司 | Keep somewhere needle plug locking mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107789703A (en) * | 2017-11-16 | 2018-03-13 | 广东龙心医疗器械有限公司 | The indwelling structure and remaining needle of a kind of remaining needle |
| CN108992738A (en) * | 2018-08-11 | 2018-12-14 | 闫红魁 | Plug assembly and the remaining needle without glue connection is isolated |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160817 |