CN201832285U - Disposable positive pressure joint - Google Patents
Disposable positive pressure joint Download PDFInfo
- Publication number
- CN201832285U CN201832285U CN2010202003088U CN201020200308U CN201832285U CN 201832285 U CN201832285 U CN 201832285U CN 2010202003088 U CN2010202003088 U CN 2010202003088U CN 201020200308 U CN201020200308 U CN 201020200308U CN 201832285 U CN201832285 U CN 201832285U
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- CN
- China
- Prior art keywords
- movable core
- end joint
- core bar
- positive pressure
- female end
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a disposable positive pressure joint, and aims to effectively prevent blood from flowing back to an indwelling needle and forming thrombus. The positive pressure joint comprises a positive end connector (10) and a negative end connector (20) which are assembled to form a whole, and a movable core rod (30) mounted in the negative end connector (20); the movable core rod (30) is provided with a neck (31) sealed with the inner wall of an upper part inner cavity (21) of the negative end connector (20), and a middle part lug boss (32) sealed with the inner wall of a middle part inner cavity (22) of the negative end connector (20); a transverse channel (35) arranged at the neck (31) is communicated with a longitudinal channel (34) leading to the bottom end of the movable core rod (30); an elastic component (40) acting on the middle part lug boss (32) of the movable core rod (30) is arranged in a lower part inner cavity (23) of the negative end connector (20); an air exhaust channel (23a) is opened on the inner wall of the elastic component; and the positive end connector (10) is provided with a longitudinal through-hole (11) for the insertion of the movable core rod (30).
Description
Technical field
This utility model relates to medical apparatus and instruments, particularly a kind of positive pressure connector that can prevent that in transfusion blood from refluxing.
Background technology
Along with improving constantly of nursing technique, the continual renovation of medical supplies, remaining needle has been safest Centesis instrument by world health organisation recommendations.It is easy and simple to handle, can reduce repeated localised puncture, protects blood vessel and alleviate patient's misery, makes things convenient for clinical application and emergency rescue, has alleviated the nurse job amount, now has been widely used in clinical.But some new problems have appearred again in venous detaining needle in clinical position,, repeated multiple times washing pipe blocked, tube sealing, extruding etc. as remaining needle, both increase nursing work load and consumptive material, also increased the probability that phlebitic incidence rate and nursing staff's accidental needle sticks are hindered.
In order to address the above problem, people's utility model the Needleless seal transfusion system carry out venous transfusion, this system has easy to use, simple to operate, the preclude blood sexually transmitted disease, reduce pipe obstruction, need not syringe needle connects, the advantage that 100% preventive injection is stabbed, its unique Interface design has increased advantages such as safety providing simple and direct access way to reduce contamination of heavy simultaneously, has both significantly reduced nurse's workload, many time has been left for the patient, reduced the nurse again in operation by the danger of blood contamination.Therefore the Needleless seal transfusion system value gets clinically and widelys popularize.
In existing Needleless seal transfusion system, when transfusion finishes when pulling down the joint of infusion set, because the effect of negative pressure can make blood be back in the inlying catheter, immobilising blood solidifies the formation thrombosis easily, cause the obstruction of inlying catheter, next transfusion can't be carried out.
The utility model content
Technical problem to be solved in the utility model provides a kind of disposable use positive pressure connector, can prevent effectively that blood is back in the remaining needle, avoids forming thrombosis.
The technical scheme that its technical problem that solves this utility model adopts is: disposable use positive pressure connector of the present utility model, it is characterized in that: it comprises male end joint, the female end joint that is assembled into one, and is installed in the movable core bar in the female end joint; Movable core bar have with female end joint top in cavity wall form the cervical region of sealing, form the middle part boss of sealing with cavity wall in the female end joint middle part, be arranged on the interconnection of cervical region and communicate with vertical passage towards movable core bar bottom; Be provided with the elastic component that acts on movable core bar middle part boss in the female end joint lower lumen, offer the exhaust passage on its inwall; The male end joint has can be for the longitudinal hole of movable core bar insertion.
The beneficial effects of the utility model are, when syringe, transfusion device or blood exchange transfusion set take off when pulling up, produce a malleation, and liquid is advanced in remaining needle, can prevent effectively that blood is back in the remaining needle, avoid forming thrombosis; The needleless transfusion avoids needle point to hurt sb.'s feelings, and reduces the infection of acquired immune deficiency syndrome (AIDS), hepatitis; Sealing is reliable, reduces the potential danger that air sucks; Do not need the lancet puncture calparine cap, avoid molecule to enter transfusion system; Reduce infection and related complication that patient keeps somewhere intravenous needle and conduit, alleviate nursing staff's workload.
Description of drawings
This description comprises following two width of cloth accompanying drawings:
Fig. 1 is the structural representation of the disposable use positive pressure connector of this utility model;
Fig. 2 is the structural representation of the disposable use positive pressure connector of this utility model.
Parts shown in the figure, toponym and pairing labelling:
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further specified.
With reference to Fig. 2, disposable use positive pressure connector of the present utility model, it comprises male end joint 10, the female end joint 20 that is assembled into one, and is installed in the movable core bar 30 in the female end joint 20.Movable core bar 30 has the cervical region 31 that forms sealing with female end joint 20 top inner chambers 21 inwalls, form the middle part boss 32 that seals with female end joint 20 middle part inner chambers 22 inwalls, the interconnection 35 that is arranged on cervical region 31 communicates with the vertical passage 34 that leads to movable core bar 30 bottoms.Be provided with the elastic component 40 that acts on movable core bar 30 middle part boss 32 in female end joint 20 lower lumen 23, offer exhaust passage 23a on its inwall.Male end joint 10 has can be for the longitudinal hole 11 of movable core bar 30 insertions.
With reference to Fig. 1, under the situation that no any connector is attached thereto, positive pressure connector is closed state, keep aseptic condition, its male end joint 10 can connect the port that peripheral vein, central vein, remaining needle, three-way valve etc. need the calparine cap end socket arbitrarily, female end joint 20 can connect and pin syringe, transfusion device or blood exchange transfusion set, finishes transfusion, treatment tasks such as blood transfusion and blood drawing.With reference to Fig. 2, when female end joint 20 connects syringe, transfusion device or blood exchange transfusion set, its front end pushes movable core bar 30 downwards, movable core bar 30 is descending relatively, insert in the longitudinal hole 11 of male end joint 10 movable core bar 30 bottoms, and the air in the female end joint 20 middle part inner chambers 22 is discharged through exhaust passage 23a.This moment, the interconnection 35 of movable core bar 30 cervical regions 31 was positioned at female end joint 20 middle part inner chambers 22, and the liquid of input enters male end joint 10 longitudinal holes 11 through interconnection 35, vertical passage 34.When the syringe on being connected female end joint 20, transfusion device or blood exchange transfusion set take off, under the effect of elastic component 40, movable core bar 30 begins to go up horizontal reset, air enters in female end joint 20 lower lumen 23 by exhaust passage 23a and produces malleation, liquid is advanced in remaining needle, can prevent that blood is back in the remaining needle, avoid forming thrombosis, seal voluntarily until interconnection 35.
With reference to Fig. 2, described female end joint 20 is provided with first sealing ring 51 in the bottom of its underpart inner chamber 23, this first sealing ring 51 forms sealing with movable core bar 30 bottom outer walls, described movable core bar 30 is provided with the 3rd sealing ring 53 at the position of cervical region 31 interconnections more than 35, and described movable core bar 30 is provided with second sealing ring 52 at middle part boss 32 positions.Described elastic component 40 is by adopting the compression spring, and the upper/lower terminal of this compression spring acts on first sealing ring, 51 upper surfaces, movable core bar 30 respectively on middle part boss 32 lower surfaces.With reference to 1, described male end joint 10 has outer cone lock port 12, can connect peripheral vein, central vein, remaining needle, three-way valve etc. arbitrarily needs the port of calparine cap end socket, described female end joint 20 has female cone lock port 24, can connect and pin syringe, transfusion device or blood exchange transfusion set.With reference to Fig. 2, the top of described movable core bar 30 has protruding 31a upwards, and the guide effect of this projection 31a when syringe is connected with female end joint 20 makes medical personnel faster when operation.Male end joint 10, female end joint 20 and movable core bar 30 adopt the injection mouldings of macromolecule medical material to generate, and male end joint 10 and female end joint 20 link together by ultrasonic bonding, produce and assemble ten parts easy.
Claims (8)
1. disposable use positive pressure connector is characterized in that: it comprises male end joint (10), the female end joint (20) that is assembled into one, and is installed in the movable core bar (30) in the female end joint (20); Movable core bar (30) has the cervical region (31) that forms sealing with female end joint (20) top inner chamber (21) inwall, form the middle part boss (32) that seals with female end joint (20) middle part inner chamber (22) inwall, the interconnection (35) that is arranged on cervical region (31) communicates with the vertical passage (34) that leads to movable core bar (30) bottom; Be provided with the elastic component (40) that acts on movable core bar (30) middle part boss (32) in female end joint (20) lower lumen (23), offer exhaust passage (23a) on its inwall; Male end joint (10) has can be for the longitudinal hole (11) of movable core bar (30) insertion.
2. disposable use positive pressure connector as claimed in claim 1, it is characterized in that: described female end joint (20) is provided with first sealing ring (51) in the bottom of its underpart inner chamber (23), and this first sealing ring (51) forms sealing with movable core bar (30) bottom outer wall.
3. disposable use positive pressure connector as claimed in claim 2 is characterized in that: the position of described movable core bar (30) more than cervical region (31) interconnection (35) is provided with the 3rd sealing ring (53).
4. disposable use positive pressure connector as claimed in claim 2 is characterized in that: described movable core bar (30) is provided with second sealing ring (52) at middle part boss (32) position.
5. disposable use positive pressure connector as claimed in claim 2 is characterized in that: described elastic component (40) acts on first sealing ring (51) upper surface, movable core bar (30) the compression spring in middle part boss (32) lower surface respectively for its two ends.
6. disposable use positive pressure connector as claimed in claim 1 is characterized in that: described male end joint (10) has outer cone lock port (12).
7. disposable use positive pressure connector as claimed in claim 1 is characterized in that: described female end joint (20) has female cone lock port (24).
8. disposable use positive pressure connector as claimed in claim 1 is characterized in that: the top of described movable core bar (30) has projection (31a) upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202003088U CN201832285U (en) | 2010-05-21 | 2010-05-21 | Disposable positive pressure joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202003088U CN201832285U (en) | 2010-05-21 | 2010-05-21 | Disposable positive pressure joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201832285U true CN201832285U (en) | 2011-05-18 |
Family
ID=44002384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202003088U Expired - Lifetime CN201832285U (en) | 2010-05-21 | 2010-05-21 | Disposable positive pressure joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201832285U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272302A (en) * | 2013-05-15 | 2013-09-04 | 浙江康泰医疗器械有限公司 | Novel positive-pressure joint |
| WO2014183271A1 (en) * | 2013-05-15 | 2014-11-20 | 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 |
| CN108815698A (en) * | 2018-07-06 | 2018-11-16 | 苏州鑫康道医疗科技有限公司 | Continuous positive pressure connector |
-
2010
- 2010-05-21 CN CN2010202003088U patent/CN201832285U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272302A (en) * | 2013-05-15 | 2013-09-04 | 浙江康泰医疗器械有限公司 | Novel positive-pressure joint |
| WO2014183271A1 (en) * | 2013-05-15 | 2014-11-20 | 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 |
| CN108815698A (en) * | 2018-07-06 | 2018-11-16 | 苏州鑫康道医疗科技有限公司 | Continuous positive pressure connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |
|
| CX01 | Expiry of patent term |