CN105228670A - The medical infusion joint of plugging into non small cellCatheter - Google Patents
The medical infusion joint of plugging into non small cellCatheter Download PDFInfo
- Publication number
- CN105228670A CN105228670A CN201380075554.1A CN201380075554A CN105228670A CN 105228670 A CN105228670 A CN 105228670A CN 201380075554 A CN201380075554 A CN 201380075554A CN 105228670 A CN105228670 A CN 105228670A
- Authority
- CN
- China
- Prior art keywords
- joint
- inner chamber
- fittings body
- connecting seat
- plugged
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
- A61M39/286—Wedge clamps, e.g. roller clamps with inclined guides
- A61M39/287—Wedge formed by a slot having varying width, e.g. slide clamps
Abstract
A medical infusion joint of plugging into non small cellCatheter, for preventing and eliminating negative pressure.Comprise joint pedestal (3), this joint pedestal (3) or to construct with Connection Block (1) Construction integration or split but affixed with Connection Block (1), fittings body (2) leading portion to be plugged in joint pedestal (3) inner chamber and to have the device that adjustable diameter and screw adjusting axially passes, between fittings body (2) and joint pedestal (3) inner chamber, or between fittings body (2) and Connection Block (1) inner chamber, or there is between fittings body (2) and joint pedestal (3) inner chamber and Connection Block (1) inner chamber the space that fittings body (2) adjustable diameter and screw adjusting is axially passed, fittings body (2) inner chamber and Connection Block (1) inner space.
Description
Technical field
Medium is introduced to internal device, particularly a kind of medical infusion joint plugged into non small cellCatheter the present invention relates to a kind of.
Background technology
In clinical treatment, when patient needs multiple transfusion, it will usually use non small cellCatheter, the docking mode of people's non small cellCatheter and transfusion device, which is divided into, pin and needleless docking.One kind of the prior art has pin docking mode such as Fig. 1
Shown, medical infusion joint is made up of connecting seat 1 and the fittings body 2 affixed with it, and this fittings body 2 is also commonly known as calparine cap.Transfusion device needle tubing is from fittings body 2
The seal rubber plug insertion at top.While transfusion device needle tubing is extracted in transfusion end of a period, pressed again close to vacuum so as to be produced in inlying catheter in the space that needle tubing original is occupied, blood can be flow backwards into inlying catheter from blood vessel, flowing backwards blood causes blood clotting to block inlying catheter, it can not infuse again, it is serious there may be thrombus, damaged to sufferer.Therefore, medical worker usually requires to take one to be rinsed tube sealing to inlying catheter with the tube sealing syringe for puncturing needle tubing, syringe needle tube is penetrated from calparine cap plug when tube sealing is operated, into calparine cap inner chamber, calparine cap intracavity space is necessarily occupied, and at the end of tube sealing, medical worker needs side to withdraw from syringe needle tube edge to inject tube-sealing solution, the space that needle tubing is occupied is replenished, in order to avoid multiple pressure is formed in inlying catheter.It is this cumbersome and still can remain the space that tube-sealing solution can not finally be filled up, negative pressure can still be produced, for remedy such and insufficient, traditionally flow-stopping clip is clamped after extension tube on not, need to slide flow-stopping clip toward conduit tube component direction, extension tube is made gradually to be extruded, extension liquid in pipe is squeezed into inlying catheter inner chamber, drive refluence blood out of, but resistance to sliding is big when flow-stopping clip is clamped with extension tube, drawing extension tube, easily extension tube is elongated and attenuated, conduit tube component is during indwelling, through multiple drawing, serious meeting breaks extension tube and causes hemorrhage, it is pasted onto plus conduit tube component indwelling on sufferer body, extension tube limited length, if drawing is careless, conduit tube component can be pulled out sufferer body, in order to avoid above-mentioned accident occurs, medical worker is overcautious when operating, sometimes flow-stopping clip drawing length is inadequate, or it can not be completely secured and drive blood inside catheters totally, therefore this mode of operation is invisible adds medical personnel's workload and psychological burden.
The content of the invention
Present invention aims to overcome that being provided in place of the deficiencies in the prior art a kind of can eliminate negative pressure and the easy to operate medical infusion joint plugged into non small cellCatheter.
The purpose of the present invention is realized by following approach.
The extension tube of the medical infusion joint plugged into non small cellCatheter, including connecting seat and fittings body, connecting seat front end and inlying catheter is plugged into, and its composition is characterized by：Also include a kind of joint pedestal, this joint pedestal is constructed but affixed with connecting seat with connecting seat Construction integration or split, the device that fittings body leading portion is plugged in joint pedestal inner chamber and axially elapsed with adjustable diameter and screw adjusting, there is the space that fittings body adjustable diameter and screw adjusting is axially elapsed, joint intracoelomic cavity is connected with connecting seat inner chamber between fittings body and joint pedestal inner chamber or between fittings body and connecting seat inner chamber or between fittings body and joint pedestal inner chamber and connecting seat inner chamber.
So both joint pedestal and connecting seat inner chamber constitutes a closed die cavity, and the advance and retreat for utilizing fittings body adjustable diameter and screw adjusting axially to elapse change closed die cavity volume size.Fittings body is stepped back, closed die cavity increase；Fittings body is promoted, and closed die cavity reduces.During transfusion work, fittings body is first stepped back, closed die cavity increase, is easy to accommodate more liquid；Transfusion terminates needle tubing and exited simultaneously, and fittings body is promoted, and closed die cavity from large to small, so as to fill up the space that former needle tubing is occupied, prevents negative pressure or discharge blood inside catheters intravasation from eliminating negative pressure.This mode for preventing negative pressure and elimination negative pressure is simple, effective, easy to operate.
The purpose of the present invention can also be realized by following approach.
Axially the device of passage has and a variety of specifically constructs available, two kinds therein of following discloses, Yi Zhongshi adjustable diameter and screw adjusting：
Fittings body leading portion is plugged in joint pedestal inner chamber and is connected with joint base helical.
So, swivel body is rotated by fittings body opposing tabs base helical, so as to allow fittings body opposing tabs base helical formula to advance and spiral retrogressing.
Fittings body in front of joint base helical linkage section with being provided with a kind of inner seal liner.
Joint pedestal inner chamber is a kind of pre-large post-small ladder die cavity, large-scale cavity wall sets and screws internal thread and connecting seat corresponding part interlocking, small-sized cavity wall sets advance and retreat internal thread to can adjust spiral with fittings body and is connected, a kind of shoulder block is provided with before advance and retreat internal thread, inner seal liner is installed before this shoulder block, and fittings body paragraph corresponding with this inner seal liner is a kind of cylinder.
Fittings body front end be in a kind of standard luer taper section, connecting seat inner chamber or joint pedestal inner chamber in corresponding paragraph be also a kind of standard luer taper.
This fittings body is also known as standard Luer male contact.
Fittings body front end is a kind of standard luer taper section, corresponding paragraph is also a kind of standard luer taper in connecting seat inner chamber, this correspondence paragraph extend into the part that joint pedestal screws internal thread including connecting seat, and fittings body front end extend into this correspondence paragraph of connecting seat and hereinto stretched.Either：
Joint pedestal is screwing the inner core of the paragraph of the internal thread protruded stigma of projection one forward, this protruded stigma outer peripheral face is a kind of standard luer taper section and extend into connecting seat inner chamber, corresponding paragraph is also a kind of standard luer taper and is connected with the protruded stigma outer peripheral face in connecting seat inner chamber, stretched in joint pedestal inner chamber fittings body front end, elastic with fittings body, joint pedestal cavity volume in front of fittings body reduces and increased with corresponding.
Another specific configuration of the axial device of passage of above-mentioned adjustable diameter and screw adjusting can be：
Fittings body is made up of screw rod and lift head, it is located at screw rod tail end with the seal rubber plug that needle tubing is plugged into, screw rod leading portion is plugged in lift head inner chamber and is connected with its spiral, screw rod is also connected with joint pedestal axial limiting, and lift head is nested with the inner chamber of joint pedestal in the way of it can slide before and after opposing tabs pedestal.
So, because screw rod is by axial limiting, helical rotation is broken down into idle running and movable, is completed wherein dallying by screw rod, movable then completed by lift head.
Joint pedestal inner chamber is a kind of pre-large post-small ladder die cavity, large-scale cavity wall sets and screws internal thread and connecting seat corresponding part interlocking, small-sized cavity wall sets cylindrical hole to coordinate with lift head gap and is socketed, the cylinder hole length is more than the length of lift head, there is a shoulder block between cylindrical hole and screw thread, a kind of inner seal liner is installed before this shoulder block, and the front end of lift head is protruded into connecting seat inner chamber through the endoporus of this inner seal liner.
Lift head front end be in a kind of standard luer taper section, connecting seat inner chamber or joint pedestal inner chamber in corresponding paragraph be also a kind of standard luer taper.
The screw thread of above-mentioned realization advance and retreat regulation is preferably a kind of trapezoidal thread.
A kind of joint overcoat is coated on fittings body periphery and affixed with fittings body.
In summary, the present invention has the following advantages that compared with prior art：Prevent that the mode of negative pressure and elimination negative pressure is simple, effective, easy to operate.
Brief description of the drawings
Fig. 1 is a kind of structural representation of remaining needle in the prior art
Fig. 2 is the containing needle structure schematic diagram using the medical infusion joint of the present invention plugged into non small cellCatheter
Fig. 3 is the structural representation for the medical infusion joint plugged into described in the embodiment of the present invention one with non small cellCatheter
Fig. 4 is that the medical infusion joint plugged into described in the embodiment of the present invention two with non small cellCatheter is advancing to the position the structural representation of state in fittings body
Fig. 5 is that the medical infusion joint plugged into described in the embodiment of the present invention two with non small cellCatheter steps back the structural representation of state in place in fittings body
Fig. 6 is the structural representation for the medical infusion joint plugged into described in preferred embodiment with non small cellCatheter.
Label declaration
The lift head of 1 connecting seat, 2 fittings body, 21 screw rod 22
The seal rubber plug of 3 joint pedestal, 31 protruded stigma, 4 inner seal liner 5
The joint overcoat of 6 extension tube, 7 flow-stopping clip, 8 conduit tube component 9.
Embodiment
Embodiment one：
Reference picture 2, a kind of remaining needle using the medical infusion joint of the present invention plugged into non small cellCatheter, by connecting seat 1, fittings body 2
, joint pedestal 3, seal rubber plug 5, extension tube 6, flow-stopping clip 7 and conduit tube component composition.
Reference picture 3, the medical infusion joint plugged into non small cellCatheter, including connecting seat 1, fittings body 2 and joint pedestal 3
, the extension tube 6 of connecting seat front end and inlying catheter plugged into, and joint pedestal 3 is constructed but affixed with connecting seat 1 with the split of connecting seat 1, the leading portion of fittings body 2 be plugged in the inner chamber of joint pedestal 3 and with joint pedestal 3
Spiral connect, between fittings body 2 and the inner chamber of connecting seat 1 and the inner chamber of joint pedestal 3 between have the adjustable diameter and screw adjusting of fittings body 2 axially passage space, the inner chamber of fittings body 2 is connected with connecting seat inner chamber.Joint pedestal 3
Inner chamber is a kind of pre-large post-small ladder die cavity, and large-scale cavity wall, which is set, screws internal thread and the corresponding part interlocking of connecting seat 1, and small-sized cavity wall sets advance and retreat internal thread and fittings body 2
A kind of shoulder block is provided with before adjustable spiral connection, advance and retreat internal thread, inner seal liner 4 is installed before this shoulder block, and fittings body 2 is a kind of cylinder with this corresponding paragraph of inner seal liner 4.Fittings body 2
Front end is that corresponding paragraph is also a kind of standard luer taper in a kind of standard luer taper section, the inner chamber of connecting seat 1, and this correspondence paragraph extend into the part that joint pedestal 3 screws internal thread, fittings body 2 including connecting seat 1
Front end extend into this correspondence paragraph of connecting seat 1 and hereinto stretched.Above-mentioned advance and retreat screw thread is a kind of trapezoidal thread.
The not described part of the present embodiment is same as the prior art.
Embodiment two：
Reference picture 4, Fig. 5, the medical infusion joint plugged into non small cellCatheter, including connecting seat 1, fittings body 2 and joint pedestal 3
, the extension tube 6 of connecting seat front end and inlying catheter plugged into, and the present embodiment is improved on the basis of embodiment one.Joint pedestal 3 is screwing the inner core of the paragraph of the internal thread protruded stigma 31 of projection one, this protruded stigma 31 forward
Outer peripheral face is a kind of standard luer taper section and extend into the inner chamber of connecting seat 1（It is not drawn into figure, refers to Fig. 3）, in the inner chamber of connecting seat 1 corresponding paragraph be also a kind of standard luer taper and with the protruded stigma 31
Outer peripheral face is connected.The front end of fittings body 2 no longer sets standard luer taper, and the front end of fittings body 2 is simply stretched in the inner chamber of joint pedestal 3, with elastic, the joint pedestal in the front of fittings body 2 of fittings body 2
3 cavity volumes reduce and increase with corresponding.A kind of joint overcoat 9 is coated on the periphery of fittings body 2 and affixed with fittings body 2.
The not described part of the present embodiment is identical with embodiment one.
Most preferred embodiment：
Reference picture 6, the medical infusion joint plugged into non small cellCatheter, including connecting seat 1, fittings body 2 and joint pedestal 3
, the extension tube 6 of connecting seat front end and inlying catheter plugged into, and joint pedestal 3 is constructed but affixed with connecting seat 1 with the split of connecting seat 1, and the leading portion of fittings body 2 is plugged in the inner chamber of joint pedestal 3, fittings body 2
Inner chamber is connected with connecting seat inner chamber.Fittings body is made up of screw rod 21 and lift head 22, and the seal rubber plug 5 plugged into needle tubing is located at the tail end of screw rod 21, and the leading portion of screw rod 21 is plugged on lift head 22
It is connected in inner chamber and with its spiral, screw rod 21 is also connected with the axial limiting of joint pedestal 3, lift head 22 in the way of the front and rear sliding of opposing tabs pedestal 3 can be nested with the inner chamber of joint pedestal 3.Joint pedestal
3 inner chambers are a kind of pre-large post-small ladder die cavity, and large-scale cavity wall sets and screws internal thread and the corresponding part interlocking of connecting seat 1（It is not drawn into the figure of connecting seat 1, refers to Fig. 2, Fig. 3
）, small-sized cavity wall sets cylindrical hole and the gap of lift head 22 coordinates socket, and the cylinder hole length is more than the length of lift head 22, so that lift head 22 or even fittings body 2
The space axially elapsed with adjustable diameter and screw adjusting.There is a shoulder block, a kind of inner seal liner 4 is installed before this shoulder block between cylindrical hole and screw thread, the front end of lift head protrudes into connecting seat 1 through the endoporus of this inner seal liner 4
In inner chamber.The front end of lift head 22 is that corresponding paragraph is also a kind of standard luer taper in a kind of standard luer taper section, the inner chamber of connecting seat 1.
The not described part of the present embodiment is identical with embodiment one.
Claims (11)
- The medical infusion joint plugged into non small cellCatheter, including connecting seat and fittings body, the extension tube of connecting seat front end and inlying catheter is plugged into, it is characterized in that, also include a kind of joint pedestal, this joint pedestal is constructed but affixed with connecting seat with connecting seat Construction integration or split, the device that fittings body leading portion is plugged in joint pedestal inner chamber and axially elapsed with adjustable diameter and screw adjusting, there is the space that fittings body adjustable diameter and screw adjusting is axially elapsed between fittings body and joint pedestal or between fittings body and connecting seat inner chamber or between fittings body and joint pedestal inner chamber and connecting seat inner chamber, joint intracoelomic cavity is connected with connecting seat inner chamber.
- According to claim 1 The described medical infusion joint plugged into non small cellCatheter, it is characterised in that fittings body leading portion is plugged in joint pedestal inner chamber and is connected with joint base helical.
- According to claim 2 The described medical infusion joint plugged into non small cellCatheter, it is characterised in that fittings body in front of joint base helical linkage section with being provided with a kind of inner seal liner.
- According to claim 1 The described medical infusion joint plugged into non small cellCatheter, it is characterized in that, joint pedestal inner chamber is a kind of pre-large post-small ladder die cavity, large-scale cavity wall sets and screws internal thread and connecting seat corresponding part interlocking, small-sized cavity wall sets advance and retreat internal thread to can adjust spiral with fittings body and is connected, a kind of shoulder block is provided with before advance and retreat internal thread, inner seal liner is installed before this shoulder block, fittings body paragraph corresponding with this inner seal liner is a kind of cylinder.
- According to claim 1 or 4 The described medical infusion joint plugged into non small cellCatheter, it is characterised in that fittings body front end be in a kind of standard luer taper section, connecting seat inner chamber or joint pedestal inner chamber in corresponding paragraph be also a kind of standard luer taper.
- According to claim 5 The described medical infusion joint plugged into non small cellCatheter, it is characterized in that, fittings body front end is a kind of standard luer taper section, corresponding paragraph is also a kind of standard luer taper in connecting seat inner chamber, this correspondence paragraph extend into the part that joint pedestal screws internal thread including connecting seat, and fittings body front end extend into this correspondence paragraph of connecting seat and hereinto stretched.
- According to claim 5 The described medical infusion joint plugged into non small cellCatheter, it is characterized in that, joint pedestal is screwing the inner core of the paragraph of the internal thread protruded stigma of projection one forward, this protruded stigma outer peripheral face is a kind of standard luer taper section and extend into connecting seat inner chamber, corresponding paragraph is also a kind of standard luer taper and is connected with the protruded stigma outer peripheral face in connecting seat inner chamber, stretched in joint pedestal inner chamber fittings body front end, elastic with fittings body, joint pedestal cavity volume in front of fittings body reduces and increased with corresponding.
- According to claim 1 The described medical infusion joint plugged into non small cellCatheter, it is characterized in that, fittings body is made up of screw rod and lift head, it is located at screw rod tail end with the seal rubber plug that needle tubing is plugged into, screw rod leading portion is plugged in lift head inner chamber and is connected with its spiral, screw rod is also connected with joint pedestal axial limiting, and lift head is nested with the inner chamber of joint pedestal in the way of it can slide before and after opposing tabs pedestal.
- According to claim 8 The described medical infusion joint plugged into non small cellCatheter, it is characterized in that, joint pedestal inner chamber is a kind of pre-large post-small ladder die cavity, large-scale cavity wall sets and screws internal thread and connecting seat corresponding part interlocking, small-sized cavity wall sets cylindrical hole to coordinate with lift head gap and is socketed, the cylinder hole length is more than the length of lift head, there is a shoulder block between cylindrical hole and screw thread, a kind of inner seal liner is installed before this shoulder block, and the front end of lift head is protruded into connecting seat inner chamber through the endoporus of this inner seal liner.
- According to claim 8 The described medical infusion joint plugged into non small cellCatheter, it is characterised in that lift head front end be in a kind of standard luer taper section, connecting seat inner chamber or joint pedestal inner chamber in corresponding paragraph be also a kind of standard luer taper.
- According to claim 1 The described medical infusion joint plugged into non small cellCatheter, it is characterised in that a kind of joint overcoat is coated on fittings body periphery and affixed with fittings body.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/074245 WO2014169429A1 (en) | 2013-04-16 | 2013-04-16 | Medical infusion connector for connecting to extracorporeal catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105228670A true CN105228670A (en) | 2016-01-06 |
| CN105228670B CN105228670B (en) | 2018-03-16 |
Family
ID=51730667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380075554.1A Active CN105228670B (en) | 2013-04-16 | 2013-04-16 | The medical infusion joint plugged into non small cellCatheter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105228670B (en) |
| WO (1) | WO2014169429A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106421999A (en) * | 2016-07-11 | 2017-02-22 | 欧阳小青 | Medical spiral needleless transfusion joint |
| CN106390221A (en) * | 2016-07-11 | 2017-02-15 | 欧阳小青 | Medical push-pull type needless infusion connector |
| CN106730109B (en) * | 2016-11-29 | 2023-03-17 | 洛阳市中心医院 | Micro pump screw thread type extension pipe |
| CN107261296B (en) * | 2017-07-19 | 2023-05-05 | 桃江县人民医院 | Contrast catheter with adjustable joint and capable of expanding inner hole of sheath tube |
| CN107661553A (en) * | 2017-09-01 | 2018-02-06 | 李卫林 | A kind of revolving preventing thrombosis remaining needle |
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| US4296949A (en) * | 1979-08-06 | 1981-10-27 | Abbott Laboratories | Rotatable connecting device for I.V. administration set |
| US4369781A (en) * | 1981-02-11 | 1983-01-25 | Sherwood Medical Industries Inc. | Luer connector |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2014169429A1 (en) | 2014-10-23 |
| CN105228670B (en) | 2018-03-16 |
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