CN201001901Y - Positive pressure needle-free connecting type indwelling needle - Google Patents
Positive pressure needle-free connecting type indwelling needle Download PDFInfo
- Publication number
- CN201001901Y CN201001901Y CNU2006200762877U CN200620076287U CN201001901Y CN 201001901 Y CN201001901 Y CN 201001901Y CN U2006200762877 U CNU2006200762877 U CN U2006200762877U CN 200620076287 U CN200620076287 U CN 200620076287U CN 201001901 Y CN201001901 Y CN 201001901Y
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- fitting sleeve
- sleeve
- baffle
- rear end
- face
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Abstract
The utility model discloses a positive pressure needle-free connecting retaining needle and comprises a guide tube, a retaining needle head and a connecting piece, of which a tube sealing device is arranged on the end port of the connecting piece; the tube sealing device consists of a connecting terminal sleeve; a step is arranged on the back end of the internal hole of the connecting terminal sleeve; a diversion piece is fixed on the front end of the connecting terminal cover; the front end face of an elastic sleeve is fixedly connected with the back end face of the diversion piece, forming a cavity; the diversion piece is provided with through holes communicating with the cavity; a diversion groove is arranged in axial direction on the internal wall of the connecting terminal cover; the diversion groove is formed to a backflow chamber outside the diversion piece; the diversion piece is provided with diversion holes communicating with the backflow chamber and the connecting piece; a connecting piece is arranged on the back end face of the elastic sleeve; a flow splitting groove is positioned on the diversion piece; when in operation, the flow splitting groove is communicated with the diversion groove. The utility model can advance in the medicine liquor when pulling out the transfusion system or the injector, so that the thrombus due to the blood backflow can be avoided.
Description
Technical field
This utility model relates to a kind of malleation needleless interconnection system remaining needle.
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 has the connector of one or more passages.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 malleation needleless interconnection system remaining needle is provided, this remaining needle 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 malleation needleless interconnection system remaining needle, comprise conduit, the front end of conduit is communicated with the remaining needle head part, the rear end of conduit is communicated with the connector with one or more passages, the port of connector is provided with pipe sealing device, described pipe sealing device comprises fitting sleeve, the endoporus rear end of fitting sleeve is provided with step, the fitting sleeve inner diameter of the diameter of the fitting sleeve inwall before the step after greater than step, be provided with the resilient sleeve that is mated in the fitting sleeve, the resilient sleeve that is positioned at behind the step is inserted with sealed core, the rear end outer wall of resilient sleeve and the endoporus rear end of fitting sleeve closely cooperate, the front end of fitting sleeve is fixed with baffle, the front end face of resilient sleeve and the rear end face of baffle are connected and fixed, form inner chamber, baffle is provided with passage, passage is communicated with inner chamber, be axially arranged with drainage trough on the inwall of fitting sleeve, drainage trough forms back cavity outside baffle, baffle is provided with the pod apertures that is communicated with back cavity, and pod apertures is communicated with connector, the rear end face of resilient sleeve is provided with the drain sheet, the drain sheet is provided with splitter box, during job state, and splitter box and drainage trough conducting.
The further technical scheme of this utility model is: a kind of malleation needleless interconnection system remaining needle, comprise conduit, the front end of conduit is communicated with the remaining needle head part, the rear end of conduit is communicated with the connector with one or more passages, the port of connector is provided with pipe sealing device, described pipe sealing device comprises fitting sleeve, the endoporus rear end of fitting sleeve is provided with step, the fitting sleeve inner diameter of the diameter of the fitting sleeve inwall before the step after greater than step, be provided with the resilient sleeve that is mated in the fitting sleeve, the resilient sleeve that is positioned at behind the step is inserted with sealed core, the rear end outer wall of resilient sleeve and the endoporus rear end of fitting sleeve closely cooperate, the front end of fitting sleeve is fixed with baffle, the front end face of resilient sleeve and the rear end face of baffle are connected and fixed, form inner chamber, baffle is provided with passage, passage is communicated with inner chamber, be axially arranged with drainage trough on the inwall of fitting sleeve, drainage trough forms back cavity outside baffle, baffle is provided with the pod apertures that is communicated with back cavity, and pod apertures is communicated with connector, the rear end face of resilient sleeve is provided with the drain sheet, the drain sheet is provided with splitter box, during job state, and splitter box and drainage trough conducting; The endoporus front end of described fitting sleeve is provided with step, the fitting sleeve inner diameter of the diameter of the fitting sleeve inwall before the step after greater than step, baffle is arranged at the place ahead of step, the front end of baffle is provided with a circle flange, the rear end face of flange is fixedlyed connected with the front end face of fitting sleeve, and back cavity is set in place outside the circumference of the baffle at flange rear.
The more detailed technical scheme of this utility model is: a kind of malleation needleless interconnection system remaining needle, comprise conduit, the front end of conduit is communicated with the remaining needle head part, the rear end of conduit is communicated with the connector with one or more passages, the port of connector is provided with pipe sealing device, described pipe sealing device comprises fitting sleeve, the endoporus rear end of fitting sleeve is provided with step, the fitting sleeve inner diameter of the diameter of the fitting sleeve inwall before the step after greater than step, be provided with the resilient sleeve that is mated in the fitting sleeve, the resilient sleeve that is positioned at behind the step is inserted with sealed core, the rear end outer wall of resilient sleeve and the endoporus rear end of fitting sleeve closely cooperate, the front end of fitting sleeve is fixed with baffle, the front end face of resilient sleeve and the rear end face of baffle are connected and fixed, form inner chamber, baffle is provided with passage, passage is communicated with inner chamber, be axially arranged with drainage trough on the inwall of fitting sleeve, drainage trough forms back cavity outside baffle, baffle is provided with the pod apertures that is communicated with back cavity, and pod apertures is communicated with connector, the rear end face of resilient sleeve is provided with the drain sheet, the drain sheet is provided with splitter box, during job state, and splitter box and drainage trough conducting; The endoporus front end of described fitting sleeve is provided with step, the fitting sleeve inner diameter of the diameter of the fitting sleeve inwall before the step after greater than step, baffle is arranged at the place ahead of step, the front end of baffle is provided with a circle flange, the rear end face of flange is fixedlyed connected with the front end face of fitting sleeve, and back cavity is set in place outside the circumference of the baffle at flange rear; Intracavity is provided with stage clip in described, and the front end of stage clip is connected with the rear end face of baffle, and the rear end of stage clip is fixed on the front end of sealed core; Described splitter box is a cross recess; The outer wall of described fitting sleeve rear end is provided with external screw thread.
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 to flow in the remaining needle 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, has widened the scope of application of remaining needle.
3. this utility model is provided with passage on flow deflector, and when resilient 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 needleless interconnection system to connect, and has avoided because of the carry disease germs generation of the phenomenon that causes patient infection's disease of entry needle.
5. 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;
Fig. 2 is the connection diagram of the transfusion end of this utility model pipe sealing device and syringe, transfusion device;
Fig. 3 is the sketch map of this utility model baffle;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the sketch map of this utility model drain sheet.
Wherein: 1 conduit, 2 remaining needle head part, 3 connectors, 4 pipe sealing devices, 5 fitting sleeves, 6 steps, 7 resilient sleeve, 8 sealed cores, 9 baffles, 10 inner chambers, 11 passages, 12 drainage troughs, 13 back cavities, 14 pod apertures, 15 drain sheets, 16 splitter boxs, 17 steps, 18 flanges, 19 stage clips; 20 dispensing ends; 21 clamping rings; 22 liquid storage cylinders.
The specific embodiment
Embodiment: as Fig. 1, Fig. 2 and shown in Figure 3, a kind of malleation needleless interconnection system remaining needle, comprise conduit 1, the front end of conduit 1 is communicated with remaining needle head part 2, the rear end of conduit 1 is communicated with the connector 3 with one or more passages, the port of connector 3 is provided with pipe sealing device 4, pipe sealing device 4 comprises fitting sleeve 5, the endoporus rear end of fitting sleeve 5 is provided with step 6, fitting sleeve 5 inner diameters of the diameter of fitting sleeve 5 inwalls before the step 6 after greater than step 6, be provided with the resilient sleeve 7 that is mated in the fitting sleeve 5, the resilient sleeve 7 that is positioned at behind the step 6 is inserted with sealed core 8, the rear end outer wall of resilient sleeve 7 and the endoporus rear end of fitting sleeve 5 closely cooperate, the endoporus front end of fitting sleeve 5 is provided with step 17, fitting sleeve 5 inner diameters of the diameter of fitting sleeve 5 inwalls before the step 17 after greater than step 17, and the place ahead of step 17 is provided with baffle 9, the front end of baffle 9 is provided with a circle flange 18, and the rear end face of flange 18 is fixedlyed connected with the front end face of fitting sleeve 5.
Be axially arranged with drainage trough 12 on the inwall of fitting sleeve 5, drainage trough 12 forms back cavity 13 outside baffle 9, back cavity 13 is positioned at outside the circumference of baffle 9 at flange 18 rears, the rear end face of the front end face of resilient sleeve 7 and baffle 9 is connected and fixed, form inner chamber 10, be provided with stage clip 19 in the inner chamber 10, the front end of stage clip 19 is connected with the rear end face of baffle 9, and the rear end of stage clip 19 is fixed on the front end of sealed core 8; Baffle 9 is provided with passage 11, passage 11 is communicated with inner chamber 10, baffle 9 is provided with the pod apertures 14 that is communicated with back cavity 13, pod apertures 14 is communicated with connector 3, the rear end face of resilient sleeve 7 is provided with drain sheet 15, drain sheet 15 is provided with cross recess, during job state, and cross recess and drainage trough 12 conductings; The outer wall of fitting sleeve 5 rear ends is provided with external screw thread.
Syringe that is connected with above-mentioned remaining needle or transfusion device are provided with a clamping ring 21 in the periphery of dispensing end 20, the inwall of clamping ring 21 is provided with the female thread that matches with the external screw thread of fitting sleeve 5 rear ends.
During use, only need directly fitting sleeve 5 is slightly inserted in the termination of the dispensing end 20 of syringe or transfusion device, make that resilient sleeve 7 is little forward moves, rotary injection device or transfusion device again, make the female thread of clamping ring 21 and the external thread bolt connection of fitting sleeve 7, make dispensing end 20 further promote resilient sleeve 7 reaches simultaneously, inject then; During injection, medicinal liquid in syringe or the transfusion device flows out from dispensing end 20, in cross recess flows to drainage trough 12 and liquid storage cylinder 22 (liquid storage cylinder 22 refers to because resilient sleeve 22 bending parts that resilient sleeve 7 reaches form and the gap between step 6 front end faces), flow in the back cavity 13 through drainage trough 12 again, medicinal liquid in the back cavity 13 flows into connector 3, conduit 1, remaining needle head part 2 successively through pod apertures 14 again, injects human body at last; Injected when extracting, the dispensing end 20 of syringe or transfusion device retreats, and resilient sleeve 7 also retreats thereupon, because the outer wall and the fitting sleeve 5 rear end inwalls of resilient sleeve 7 closely cooperate once more at this moment, the medicinal liquid of liquid storage cylinder 22 is squeezed and can only flows into back cavity 13 forward, thereby continues to inject 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.
When this remaining needle moved forward or retreats in resilient sleeve, inner chamber can pass through passage aerofluxus or air inlet, thereby the air pressure of intracavity is identical with atmospheric pressure in guaranteeing.
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 the needleless bolt connection type to connect, and has avoided also making connection more reliable simultaneously because of the carry disease germs generation of the phenomenon that causes patient infection's disease of entry needle, has prevented the rotation between dispensing end and the fitting sleeve, has guaranteed the injection effect.
Claims (5)
1. malleation needleless interconnection system remaining needle, comprise conduit (1), the front end of conduit (1) is communicated with remaining needle head part (2), the rear end of conduit (1) is communicated with the connector (3) with one or more passages, the port of connector (3) is provided with pipe sealing device (4), it is characterized in that: described pipe sealing device (4) comprises fitting sleeve (5), the endoporus rear end of fitting sleeve (5) is provided with step (6), fitting sleeve (5) inner diameter of the diameter of fitting sleeve (5) inwall that step (6) is preceding after greater than step (6), be provided with the resilient sleeve (7) that is mated in the fitting sleeve (5), the resilient sleeve (7) that is positioned at behind the step (6) is inserted with sealed core (8), the endoporus rear end of the rear end outer wall of resilient sleeve (7) and fitting sleeve (5) closely cooperates, the front end of fitting sleeve (5) is fixed with baffle (9), the rear end face of the front end face of resilient sleeve (7) and baffle (9) is connected and fixed, form inner chamber (10), baffle (9) is provided with passage (11), passage (11) is communicated with inner chamber (10), be axially arranged with drainage trough (12) on the inwall of fitting sleeve (5), drainage trough (12) forms back cavity (13) outside baffle (9), baffle (9) is provided with the pod apertures (14) that is communicated with back cavity (13), pod apertures (14) is communicated with connector (3), the rear end face of resilient sleeve (7) is provided with drain sheet (15), drain sheet (15) is provided with splitter box (16), during job state, splitter box (16) and drainage trough (12) conducting.
2. according to the described malleation needleless of claim 1 interconnection system remaining needle, it is characterized in that: the endoporus front end of described fitting sleeve (5) is provided with step (17), fitting sleeve (5) inner diameter of the diameter of fitting sleeve (5) inwall that step (17) is preceding after greater than step, baffle (9) is arranged at the place ahead of step (17), the front end of baffle (9) is provided with a circle flange (18), the rear end face of flange (18) is fixedlyed connected with the front end face of fitting sleeve (5), and back cavity (13) is set in place outside the circumference of the baffle (9) at flange (18) rear.
3. according to the described malleation needleless of claim 1 interconnection system remaining needle, it is characterized in that: be provided with stage clip (19) in the described inner chamber (10), the front end of stage clip (19) is connected with the rear end face of baffle (9), and the rear end of stage clip (19) is fixed on the front end of sealed core (8).
4. according to the described malleation needleless of claim 1 interconnection system remaining needle, it is characterized in that: described splitter box (16) is a cross recess.
5. according to claim 1 or 2 described needleless interconnection system remaining needles, it is characterized in that: the outer wall of described fitting sleeve (5) rear end is provided with external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200762877U CN201001901Y (en) | 2006-08-08 | 2006-08-08 | Positive pressure needle-free connecting type indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200762877U CN201001901Y (en) | 2006-08-08 | 2006-08-08 | Positive pressure needle-free connecting type indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201001901Y true CN201001901Y (en) | 2008-01-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200762877U Expired - Lifetime CN201001901Y (en) | 2006-08-08 | 2006-08-08 | Positive pressure needle-free connecting type indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201001901Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100556379C (en) * | 2008-04-16 | 2009-11-04 | 林平 | Disposable thoracic drainage needle |
| CN102068730A (en) * | 2011-01-26 | 2011-05-25 | 天津市百利康泰生物技术有限公司 | Hirudin anticoagulation seal tube kit for vein detained needle |
| CN102119861A (en) * | 2011-01-26 | 2011-07-13 | 天津市百利康泰生物技术有限公司 | Venous indwelling needle with hirudin anticoagulation pipe-sealing device |
| CN105031799A (en) * | 2015-06-18 | 2015-11-11 | 王玉英 | Catheter system for newborns and department of pediatrics |
| WO2015172423A1 (en) * | 2014-05-15 | 2015-11-19 | 上海金塔医用器材有限公司 | Safe pump indwelling needle |
| CN105163773A (en) * | 2013-05-15 | 2015-12-16 | 福建省百仕韦医用高分子股份有限公司 | Pull positive pressure type medical infusion connector connected to extracorporal indwelling catheter |
| WO2016086832A1 (en) * | 2014-12-01 | 2016-06-09 | 邹卫平 | Indwelling needle having sustained release positive pressure |
| CN107684644A (en) * | 2016-08-04 | 2018-02-13 | 上海金塔医用器材有限公司 | It is pre- to rush formula flushing syringe infusion pump combination bag |
-
2006
- 2006-08-08 CN CNU2006200762877U patent/CN201001901Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100556379C (en) * | 2008-04-16 | 2009-11-04 | 林平 | Disposable thoracic drainage needle |
| CN102068730A (en) * | 2011-01-26 | 2011-05-25 | 天津市百利康泰生物技术有限公司 | Hirudin anticoagulation seal tube kit for vein detained needle |
| CN102119861A (en) * | 2011-01-26 | 2011-07-13 | 天津市百利康泰生物技术有限公司 | Venous indwelling needle with hirudin anticoagulation pipe-sealing device |
| CN105163773A (en) * | 2013-05-15 | 2015-12-16 | 福建省百仕韦医用高分子股份有限公司 | Pull positive pressure type medical infusion connector connected to extracorporal indwelling catheter |
| CN105163773B (en) * | 2013-05-15 | 2018-05-04 | 福建省百仕韦医用高分子股份有限公司 | The pull positive-pressure type medical infusion connector plugged into non small cellCatheter |
| WO2015172423A1 (en) * | 2014-05-15 | 2015-11-19 | 上海金塔医用器材有限公司 | Safe pump indwelling needle |
| WO2016086832A1 (en) * | 2014-12-01 | 2016-06-09 | 邹卫平 | Indwelling needle having sustained release positive pressure |
| CN105031799A (en) * | 2015-06-18 | 2015-11-11 | 王玉英 | Catheter system for newborns and department of pediatrics |
| CN107684644A (en) * | 2016-08-04 | 2018-02-13 | 上海金塔医用器材有限公司 | It is pre- to rush formula flushing syringe infusion pump combination bag |
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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: 20120511 |
|
| 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: 20120511 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 |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215121 No. 3, new road, Suzhou Industrial Park, Jiangsu, China Patentee after: SUZHOU LINHUA MEDICAL INSTRUMENT CO., LTD. Address before: 215121 No. 3, new road, Suzhou Industrial Park, Jiangsu, China Patentee before: Linhua Medical Appliances Co., Ltd., Suzhou |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080109 |
|
| EXPY | Termination of patent right or utility model |