CN201008703Y - Positive pressure type coupling assembly - Google Patents
Positive pressure type coupling assembly Download PDFInfo
- Publication number
- CN201008703Y CN201008703Y CNU2007200353969U CN200720035396U CN201008703Y CN 201008703 Y CN201008703 Y CN 201008703Y CN U2007200353969 U CNU2007200353969 U CN U2007200353969U CN 200720035396 U CN200720035396 U CN 200720035396U CN 201008703 Y CN201008703 Y CN 201008703Y
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- CN
- China
- Prior art keywords
- sleeve
- fitting sleeve
- connector
- communicated
- adapter sleeve
- 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 - Fee Related
Links
- 230000008878 coupling Effects 0.000 title claims description 13
- 238000010168 coupling process Methods 0.000 title claims description 13
- 238000005859 coupling reaction Methods 0.000 title claims description 13
- 239000012530 fluid Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 abstract description 11
- 239000008280 blood Substances 0.000 abstract description 8
- 210000004369 blood Anatomy 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 6
- 208000007536 Thrombosis Diseases 0.000 abstract description 5
- 210000004204 blood vessel Anatomy 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000000474 nursing effect Effects 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003146 anticoagulant agent Substances 0.000 description 2
- 229940127219 anticoagulant drug Drugs 0.000 description 2
- 210000004761 scalp Anatomy 0.000 description 2
- 238000001467 acupuncture Methods 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a positive pressure connecting component, which comprises a joint sleeve which is provided with steps. An inner sleeve is arranged in the joint sleeve in the front of the steps. The front end of the inner sleeve is provided with a connecting piece with a liquid-out mouth. The connecting piece and the joint sleeve are in seal connection. A flow guiding cavity is formed between the inner sleeve and the joint sleeve. A flow guiding hole which is connected with the flow guiding cavity is arranged on the connecting piece. The flow guiding hole is connected with the liquid-out mouth. A connecting sleeve with steps is arranged in the inner sleeve. The connecting sleeve which is in the front of the steps matches with the inner sleeve. The connecting sleeve which is in the back of the steps matches with the back end of the joint sleeve. A sealing core is arranged in the connecting sleeve. An inner cavity is formed between the front end of the connecting sleeve and the connecting piece. A blowhole which is connected with the inner cavity is arranged on the connecting piece. The back end of the sealing core is provided with a flow leading plate. When the utility model is in working state, a flow dividing groove on the flow leading plate is connected with the flow guiding cavity. The utility model can push medical liquid forwards When a transfusion device or an injector is drawn out. The thrombus formed by the blood return can be avoided.
Description
Technical field
This utility model relates to the positive-pressure type coupling assembling that uses in a kind of medical apparatus and instruments.
Background technology
Venous detaining needle is as the regeneration product of scalp draw point, be widely used in clinical, its advantage more and more by the nursing staff cognition.
The advantage of venous detaining needle has: (1) venous indwelling needle cannula is made by advanced person's biomaterial Vialon, and sleeve pipe softness, toughness be big, be difficult for the injured blood vessel wall and cause and exosmose that its leakage rate is below 13.8%.(2) venous indwelling is stabbed for a short time at blood vessel, protects blood vessel effectively, and tube drawing reduces the destruction to blood vessel after of short duration reparation is promptly reusable.(3) venous detaining needle has reduced the patient's blood vessel puncture time, has alleviated patient's misery, has alleviated nurse's workload.(4) trocar retention time in blood vessel is longer, can accomplish venous transfusion at any time for patients such as operation, neonate, critical, rescues, guarantees treatment.(5) economical price of the trocar equates both economical practicality substantially with common scalp draw point transfusion consumptive material.
Present remaining needle comprises remaining needle head part, conduit and connector.One end of conduit is connected with the remaining needle head part, and the other end of conduit is communicated with connector, and the port of connector generally is equipped with calparine cap and seals.
But such remaining needle needs repeated multiple times washing pipe, tube sealing, has not only increased nursing work load, has also increased phlebitic incidence rate simultaneously.And in practical operation, no matter be transfusion device or syringe, when remaining needle withdraws from, the capital produces negative pressure and blood back, and forms thrombosis, prevent the generation of blood back, just must be when the withdraw of the needle while moving back feed liquor, require the nurse to have relatively abundanter behaviour's experience, otherwise, be difficult to obtain satisfied effect.
Summary of the invention
This utility model purpose is: a kind of positive-pressure type coupling assembling is provided, this coupling assembling has reduced repeated multiple times tube sealing, washing pipe program, alleviated nursing work load, improve work efficiency, also reduced phlebitic incidence rate simultaneously, in addition, when transfusion device or syringe are extracted, can be pushed forward into medicinal liquid, avoid blood to reflux and formed thrombosis, reduce the plugging rate.
The technical solution of the utility model is: a kind of positive-pressure type coupling assembling, comprise fitting sleeve, the rear end of the endoporus of fitting sleeve is provided with step, the inner diameter of the fitting sleeve of the inner diameter of the fitting sleeve before the step after greater than step, be provided with interior cover in the endoporus of the fitting sleeve before the step, the front end of interior cover is provided with the connector that has the fluid mouth, connector and fitting sleeve are tightly connected, be formed with diversion cavity between interior cover and the fitting sleeve, connector is provided with the pod apertures that is communicated with diversion cavity, pod apertures is communicated with the fluid mouth, be provided with adapter sleeve in the interior cover, the middle part of adapter sleeve is provided with step, being positioned at the preceding adapter sleeve of step and the inwall of cover closely cooperates, being positioned at the adapter sleeve behind the step and the endoporus rear end of fitting sleeve closely cooperates, be inserted with sealed core in the adapter sleeve, the front end of adapter sleeve is provided with pad, be connected with stage clip between pad and the connector and be formed with inner chamber, connector is provided with passage, and an end of passage is communicated with inner chamber, and the other end of passage is communicated with atmosphere, the rear end of sealed core is provided with the drain sheet, the drain sheet is provided with splitter box, and during job state, splitter box is communicated with diversion cavity.
The further technical scheme of this utility model is: a kind of positive-pressure type coupling assembling, comprise fitting sleeve, the rear end of the endoporus of fitting sleeve is provided with step, the inner diameter of the fitting sleeve of the inner diameter of the fitting sleeve before the step after greater than step, be provided with interior cover in the endoporus of the fitting sleeve before the step, the front end of interior cover is provided with the connector that has the fluid mouth, connector and fitting sleeve are tightly connected, be formed with diversion cavity between interior cover and the fitting sleeve, connector is provided with the pod apertures that is communicated with diversion cavity, pod apertures is communicated with the fluid mouth, be provided with adapter sleeve in the interior cover, the middle part of adapter sleeve is provided with step, being positioned at the preceding adapter sleeve of step and the inwall of cover closely cooperates, being positioned at the adapter sleeve behind the step and the endoporus rear end of fitting sleeve closely cooperates, be inserted with sealed core in the adapter sleeve, the front end of adapter sleeve is provided with pad, be connected with stage clip between pad and the connector and be formed with inner chamber, connector is provided with passage, and an end of passage is communicated with inner chamber, and the other end of passage is communicated with atmosphere, the rear end of sealed core is provided with the drain sheet, the drain sheet is provided with splitter box, and during job state, splitter box is communicated with diversion cavity.
Described splitter box is a cross recess; The outer wall of described fitting sleeve rear end is provided with external screw thread.
Also can be provided with side feed liquor spare on the sidewall of above-mentioned fitting sleeve, the inlet opening of side feed liquor spare is communicated with diversion cavity.
This utility model advantage is:
1. this utility model has reduced repeated multiple times tube sealing, washing pipe program, has alleviated nursing work load, has improved work efficiency, has also reduced phlebitic incidence rate simultaneously.
2. this utility model does not only have blood reflux stream when transfusion device or syringe are extracted, and can be pushed forward into medicinal liquid on the contrary, has avoided blood to reflux and has formed thrombosis, has reduced the plugging rate, does not need the reuse anticoagulant.
3. this utility model is provided with passage on connector, and when adapter sleeve moved forward or retreats, inner chamber can pass through passage aerofluxus or air inlet, thereby the air pressure of intracavity is identical with atmospheric pressure in guaranteeing.
4. this utility model adopts the mode that is spirally connected to be connected with syringe, transfusion device, makes connection more reliable, has prevented the rotation between dispensing end and the fitting sleeve, has guaranteed the injection effect.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further described:
Fig. 1 is a structural representation of the present utility model;
Structural representation when Fig. 2 is provided with side feed liquor spare for this utility model;
Structural representation when Fig. 3 connects syringe or transfusion device for Fig. 1;
Structural representation when Fig. 4 connects remaining needle for Fig. 1;
Fig. 5 is the structural representation of connector among Fig. 1;
Fig. 6 is the right view of Fig. 5;
Fig. 7 is the structural representation of drain sheet.
Wherein: 1 fitting sleeve; 2 steps; Cover in 3; 4 fluid mouths; 5 connectors; 6 diversion cavity; 7 pod apertures; 8 adapter sleeves; 9 steps; 10 sealed cores; 11 pads; 12 inner chambers; 13 passages; 14 drain sheets; 15 splitter boxs; 16 side feed liquor spares; 17 inlet openings; 18 stage clips; 19 external screw threads; 20 terminations; 21 clamping rings; 22 female threads; 23 liquid storage cylinders; 24 conduits; 25 head part of putting that let the acupuncture needle remain at a certain point.
The specific embodiment
Embodiment: as Fig. 1, Fig. 5, Fig. 6 and shown in Figure 7, a kind of positive-pressure type coupling assembling, comprise that the rear end is provided with the fitting sleeve 1 of external screw thread 19, the rear end of the endoporus of fitting sleeve 1 is provided with step 2, the inner diameter of the fitting sleeve 1 of the inner diameter of the fitting sleeve 1 before the step 2 after greater than step 2, cover 3 in being provided with in the endoporus of the fitting sleeve 1 before the step 2, the front end of interior cover 3 is provided with the connector 5 that has fluid mouth 4, connector 5 is tightly connected with fitting sleeve 1, be formed with diversion cavity 6 between interior cover 3 and the fitting sleeve 1, connector 5 is provided with the pod apertures 7 that is communicated with diversion cavity 6, pod apertures 7 is communicated with fluid mouth 4, be provided with adapter sleeve 8 in the interior cover 3, the middle part of adapter sleeve 8 is provided with step 9, the inwall that is positioned at adapter sleeve 8 and cover 3 before the step 9 closely cooperates, the endoporus rear end that is positioned at adapter sleeve 8 and fitting sleeve 1 behind the step 9 closely cooperates, be inserted with sealed core 10 in the adapter sleeve 8, the front end of adapter sleeve 8 is provided with pad 11, be connected with stage clip 18 between pad 11 and the connector 5 and be formed with inner chamber 12, connector 5 is provided with passage 13, one end of passage 13 is communicated with inner chamber 12, the other end of passage 13 is communicated with atmosphere, the rear end of sealed core 10 is provided with drain sheet 14, drain sheet 14 is provided with criss-cross splitter box 15, during job state, splitter box 15 is communicated with diversion cavity 6.
As shown in Figure 2, also can be provided with side feed liquor spare 16 on the sidewall of above-mentioned fitting sleeve 1, the inlet opening 17 of side feed liquor spare 16 is communicated with diversion cavity 6.
As shown in Figure 3, Figure 4, during use, only need directly fitting sleeve 1 is slightly inserted in the termination 20 of the dispensing end of syringe or transfusion device, make that adapter sleeve 8 is little forward to be moved, rotary injection device or transfusion device again, the female thread 22 of clamping ring 21 and the external screw thread 19 of fitting sleeve 1 are spirally connected, make the dispensing end progress promote adapter sleeve 8 reaches simultaneously, inject then; During injection, medicinal liquid in syringe or the transfusion device flows out from dispensing end, in criss-cross splitter box 15 flows to diversion cavity 6 and liquid storage cylinder 23 (liquid storage cylinder 23 refers to because adapter sleeve 8 that adapter sleeve 8 reaches form and the gap between the interior cover 3), medicinal liquid in the diversion cavity 6 flows into fluid mouth 4, conduit 24, remaining needle head part 25 through pod apertures 7 again, injects human body at last; Injected when extracting, the dispensing end of syringe or transfusion device retreats, and adapter sleeve 8 also retreats thereupon, because the space between this moment adapter sleeve 8 and the interior cover 3 diminishes, the medicinal liquids in the liquid storage cylinder 23 are squeezed and can only flow into diversion cavity 6 forward, thereby continue the injection human body.Therefore, this utility model does not only have blood reflux to flow in the remaining needle when transfusion device or syringe are extracted, can be pushed forward into medicinal liquid on the contrary, avoid blood to reflux and formed thrombosis, reduce the plugging rate, do not need the reuse anticoagulant, widened the scope of application of remaining needle.
This utility model has reduced repeated multiple times tube sealing, washing pipe program, has alleviated nursing work load, has improved work efficiency, has also reduced phlebitic incidence rate simultaneously.And this utility model adopts bolt connection type to connect, and connects more reliably, has prevented the rotation between dispensing end and the fitting sleeve 1, has guaranteed the injection effect.
Below only be concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.In addition to the implementation, this utility model can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within this utility model scope required for protection.
Claims (5)
1. positive-pressure type coupling assembling, it is characterized in that: comprise fitting sleeve (1), the rear end of the endoporus of fitting sleeve (1) is provided with step (2), the inner diameter of the fitting sleeve (1) of the inner diameter of the fitting sleeve (1) that step (2) is preceding after greater than step (2), be provided with interior cover (3) in the endoporus of the fitting sleeve (1) that step (2) is preceding, the front end of interior cover (3) is provided with the connector (5) that has fluid mouth (4), connector (5) is tightly connected with fitting sleeve (1), be formed with diversion cavity (6) between interior cover (3) and the fitting sleeve (1), connector (5) is provided with the pod apertures (7) that is communicated with diversion cavity (6), pod apertures (7) is communicated with fluid mouth (4), be provided with adapter sleeve (8) in the interior cover (3), the middle part of adapter sleeve (8) is provided with step (9), the inwall that is positioned at preceding adapter sleeve (8) of step (9) and cover (3) closely cooperates, the endoporus rear end that is positioned at adapter sleeve (8) and fitting sleeve (1) behind the step (9) closely cooperates, be inserted with sealed core (10) in the adapter sleeve (8), the front end of adapter sleeve (8) is provided with pad (11), be connected with stage clip (18) between pad (11) and the connector (5) and be formed with inner chamber (12), connector (5) is provided with passage (13), one end of passage (13) is communicated with inner chamber (12), the other end of passage (13) is communicated with atmosphere, the rear end of sealed core (10) is provided with drain sheet (14), drain sheet (14) is provided with splitter box (15), during job state, splitter box (15) is communicated with diversion cavity (6).
2. according to the described positive-pressure type coupling assembling of claim 1, it is characterized in that: be provided with a side feed liquor spare (16) on the sidewall of described fitting sleeve (1) at least, the inlet opening (17) of side feed liquor spare (16) is communicated with diversion cavity (6).
3. according to the described positive-pressure type coupling assembling of claim 1, it is characterized in that: described splitter box (15) is a cross recess.
4. according to claim 1 or 2 described positive-pressure type coupling assemblings, it is characterized in that: the outer wall of described fitting sleeve (1) rear end is provided with external screw thread (19).
5. according to the described positive-pressure type coupling assembling of claim 1, it is characterized in that: described connector (5) is integrated with interior cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200353969U CN201008703Y (en) | 2007-03-13 | 2007-03-13 | Positive pressure type coupling assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200353969U CN201008703Y (en) | 2007-03-13 | 2007-03-13 | Positive pressure type coupling assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201008703Y true CN201008703Y (en) | 2008-01-23 |
Family
ID=39043636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200353969U Expired - Fee Related CN201008703Y (en) | 2007-03-13 | 2007-03-13 | Positive pressure type coupling assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201008703Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621026A (en) * | 2016-12-29 | 2017-05-10 | 四川南格尔生物科技有限公司 | Non-return needle connector |
| CN108939206A (en) * | 2018-08-06 | 2018-12-07 | 江苏省人民医院（南京医科大学第附属医院） | Easily fixed aseptic anti-reflux remaining needle |
-
2007
- 2007-03-13 CN CNU2007200353969U patent/CN201008703Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621026A (en) * | 2016-12-29 | 2017-05-10 | 四川南格尔生物科技有限公司 | Non-return needle connector |
| CN106621026B (en) * | 2016-12-29 | 2020-03-27 | 四川南格尔生物科技有限公司 | Non-return needle connector |
| CN108939206A (en) * | 2018-08-06 | 2018-12-07 | 江苏省人民医院（南京医科大学第附属医院） | Easily fixed aseptic anti-reflux remaining needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WU LINYUAN Free format text: FORMER OWNER: LINHUA MEDICAL EQUIPMENT CO., LTD., SHANGHAI Effective date: 20120517 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200070 ZHABEI, SHANGHAI TO: 215121 SUZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120517 Address after: 215121 Suzhou Lin Hua medical instruments Co., Ltd., No. 3, Xin Lu, Suzhou Industrial Park, Jiangsu Patentee after: Wu Linyuan Address before: 200070 Shanghai city middle Tianmu Road No. 585 Xinmei Building 9 floor B block Patentee before: Shanghai Linhua Medical Instrument Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: LINHUA MEDICAL APPLIANCES CO., LTD., SUZHOU Free format text: FORMER OWNER: WU LINYUAN Effective date: 20150428 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150428 Address after: 215121 No. 3, new road, Suzhou Industrial Park, Jiangsu, China Patentee after: Linhua Medical Appliances Co., Ltd., Suzhou Address before: 215121 Suzhou Lin Hua medical instruments Co., Ltd., No. 3, Xin Lu, Suzhou Industrial Park, Jiangsu Patentee before: Wu Linyuan |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080123 Termination date: 20160313 |