CN105209089B - The medical infusion joint with stop valve plugged into non small cellCatheter - Google Patents
The medical infusion joint with stop valve plugged into non small cellCatheter Download PDFInfo
- Publication number
- CN105209089B CN105209089B CN201380075587.6A CN201380075587A CN105209089B CN 105209089 B CN105209089 B CN 105209089B CN 201380075587 A CN201380075587 A CN 201380075587A CN 105209089 B CN105209089 B CN 105209089B
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- fittings body
- joint
- inner chamber
- plugged
- stop valve
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Classifications
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- 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
- A61M39/26—Valves closing automatically on disconnecting the line and opening on reconnection thereof
-
- 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
-
- 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
- A61M39/24—Check- or non-return valves
-
- 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
- A61M39/24—Check- or non-return valves
- A61M2039/2406—Check- or non-return valves designed to quickly shut upon the presence of back-pressure
-
- 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
- A61M39/26—Valves closing automatically on disconnecting the line and opening on reconnection thereof
- A61M2039/263—Valves closing automatically on disconnecting the line and opening on reconnection thereof where the fluid space within the valve is decreasing upon disconnection
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A kind of that medium is introduced to internal device, what particularly a kind of and non small cellCatheter was plugged into has stop valve（4）Medical infusion joint, including connecting seat（1）And fittings body（2）, connecting seat（1）Front end and the extension tube of inlying catheter（6）Plug into, fittings body（2）Plugged into transfusion device rear end；Also include a kind of joint pedestal（3）, the joint pedestal（3）Or and connecting seat（1）Construction integration or split construction but and connecting seat（1）It is affixed, fittings body（2）Leading portion is nested with a manner of it can promote and retreat in joint pedestal（3）In inner chamber.Described device has following features：Prevent that the mode of negative pressure and elimination negative pressure is simple, effective, easy to operate；And stop valve（4）Intervention, ended infusion channel again while negative pressure is eliminated, not only relatively sanitary, safety, and ensure that from structure and must first step back fittings body during transfusion again（2）So that transfusion terminates rear joint body（2）Space with propulsion is to eliminate negative pressure.And with fittings body（2）The process for promoting and damming gradually so that stop valve（4）Also there is flow control valve.
Description
Technical field
Medium introduces to internal device the present invention relates to a kind of, it is particularly a kind of to have with what non small cellCatheter was plugged into
The medical infusion joint of stop valve.
Background technology
In clinical treatment, when patient needs repeatedly transfusion, it will usually which, using non small cellCatheter, the outer indwelling of human body is led
The docking mode of pipe and transfusion device, which is divided into, pin and needleless docking.One kind of the prior art have pin docking mode as shown in figure 1,
Medical infusion joint is made up of connecting seat 1 and the fittings body 2 affixed with it, and this fittings body 2 for having pin docking is generally also known as
For calparine cap.Seal rubber plug insertion of the transfusion device needle tubing from the top of fittings body 2.While transfusion device needle tubing is extracted in transfusion end of a period,
Close to vacuum so as to produce multiple pressure in inlying catheter, blood can be flow backwards from blood vessel into inlying catheter in the space that needle tubing original occupies
It is interior, flow backwards blood and cause blood clotting to block inlying catheter, can not infuse again, it is serious there may be thrombus, made to sufferer
Into injury.Therefore, medical worker usually requires to take one to be rinsed inlying catheter with the tube sealing syringe for puncturing needle tubing
Tube sealing, syringe needle tube penetrates from calparine cap plug when tube sealing operates, and into calparine cap inner chamber, necessarily occupies cavity space in calparine cap
Between, and at the end of tube sealing, medical worker needs side to withdraw from syringe needle tube edge to inject tube-sealing solution, replenish the space that needle tubing occupies,
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, bear
Pressure can still be produced, and for remedy such and insufficient, traditionally flow-stopping clip is clamped after extension tube, it is necessary to by flow-stopping clip toward conduit on not
Component direction is slided, and makes extension tube gradually be extruded, and will be extended liquid in pipe and is squeezed into inlying catheter inner chamber, drives refluence blood out of,
But resistance to sliding is big when flow-stopping clip clamps with extension tube, drawing extension tube, easily extension tube is elongated and attenuated, conduit tube component is in indwelling
Period, through multiple drawing, serious meeting breaks extension tube and causes hemorrhage, and sufferer body is pasted onto plus conduit tube component indwelling
On, extension tube limited length, if drawing is careless, conduit tube component can be pulled out to sufferer body, in order to avoid above-mentioned accident is sent out
Raw, medical worker is overcautious when operating, and the length of flow-stopping clip drawing sometimes is inadequate, still can not be completely secured blood inside catheters
Drive clean, 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 one kind is provided in place of the deficiencies in the prior art can eliminate negative pressure and easy to operate
The medical infusion joint with stop valve plugged into non small cellCatheter.
The purpose of the present invention is realized by following approach.
The medical infusion joint with stop valve plugged into non small cellCatheter, including connecting seat and fittings body, connection
The extension tube of seat front end and inlying catheter is plugged into, and fittings body rear end is plugged into transfusion device, and its composition is characterized by：Also include one kind
Joint pedestal, this joint pedestal either with connecting seat Construction integration or split construction but, fittings body leading portion affixed with connecting seat
Be nested with a manner of it can promote and retreat in joint pedestal inner chamber, between fittings body and joint pedestal inner chamber or fittings body with
There is the space that fittings body promotes between connecting seat inner chamber or between fittings body and joint pedestal inner chamber and connecting seat inner chamber,
Joint intracoelomic cavity is connected by a kind of stop valve with connecting seat inner chamber, and this stop valve is arranged on above-mentioned fittings body and promoted in space simultaneously
Stop through the fittings body being advancing to the position with corresponding inner chamber and being touched into wall cut-off.
So both joint pedestal and connecting seat inner chamber form a closed die cavity, and the advance and retreat axially elapsed using fittings body are changed
Become closed die cavity volume size.Fittings body is stepped back, closed die cavity increase；Fittings body promotes, and closed die cavity reduces, and is advancing to the position,
Infusion channel is ended.During transfusion work, fittings body is first stepped back, and stop valve is opened, and closed die cavity increase, is easy to accommodate more liquid
Body；Transfusion terminate needle tubing exit simultaneously, fittings body promote, closed die cavity from large to small, so as to fill up the space that former needle tubing occupies,
Blood intravasation is prevented in negative pressure or discharge conduit to eliminate negative pressure.This mode letter for preventing negative pressure and eliminating negative pressure
It is single, effective, easy to operate.And the intervention of stop valve, end infusion channel again while negative pressure is eliminated, not only more defended
Fittings body must be first stepped back when giving birth to, safety, and ensure that from structure and infuse again（Otherwise stop valve ends, can not be defeated
Liquid）So that transfusion terminates rear joint body, and there is the space promoted to eliminate negative pressure.And dam gradually as fittings body promotes
Process so that stop valve also has the function that flow control valve.
Either needleless connection modes still have pin connection modes to use this medical infusion of the present invention
Joint.
Fittings body back segment is generally used for setting calparine cap or other constructions plugged into transfusion device.
The purpose of the present invention can also be realized by following approach.
Fittings body leading portion can have various ways to be nested with joint pedestal inner chamber：
Also include the device that a kind of adjustable diameter and screw adjusting axially elapses, be able to through this device fittings body with can promote and after
The mode moved back is socketed with joint pedestal.
The device so axially elapsed by adjustable diameter and screw adjusting realizes the axial passage of fittings body opposing tabs pedestal with after
Move back.
The device that adjustable diameter and screw adjusting axially elapses have it is a variety of specifically construct available, two kinds therein of following discloses, one
Planting is：
Fittings body leading portion is plugged in joint pedestal inner chamber and is connected with joint base helical.
So, swivel body rotates by fittings body opposing tabs base helical, so as to allow fittings body opposing tabs pedestal
It is spiral to advance and spirally retreat.
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, and large-scale cavity wall sets and screws internal thread and connecting seat
Corresponding part interlocking, small-sized cavity wall set advance and retreat internal thread to can adjust spiral with fittings body and are connected, set before advance and retreat internal thread
A kind of shoulder block is equipped with, inner seal liner is installed before this shoulder block, and fittings body paragraph corresponding with this inner seal liner is a kind of cylinder.
Another specific configuration for the device that above-mentioned adjustable diameter and screw adjusting axially elapses can be：
The deeper annular groove of fittings body front end indent one, the stem on the inside of this annular groove slide over joint pedestal back segment and opened
In the inner chamber of mouth upward, the external groove sidevall of this annular groove is threaded spiral corresponding with the external screw thread on joint pedestal back segment periphery wall
Connection, the device that spiral connection composition adjustable diameter and screw adjusting axially elapses, and fittings body leading portion is trapped in the inner chamber of stop collar,
Stop collar rear end face sets limited location seam, and fittings body front end is correspondingly arranged spacing shoulder block, and stop collar and joint pedestal are affixed, connect
Head pedestal leading portion sets internal thread external screw thread interlocking corresponding with connecting seat in downward opening inner chamber, and the inner chamber SMIS is dashed forward downwards
A stem is stretched, during this stem is interior there is penetrating via to be connected respectively with joint intracoelomic cavity and connecting seat inner chamber.
Another specific configuration for the device that above-mentioned adjustable diameter and screw adjusting axially elapses can be：
Fittings body is made up of screw rod and lift head, is located at screw rod tail end, screw rod with the seal rubber plug that needle tubing is plugged into
Leading portion is plugged in lift head inner chamber and is connected with its spiral, and screw rod is also connected with joint pedestal axial limiting, lift head with
Can the mode of the front and rear sliding of opposing tabs pedestal be nested with the inner chamber of joint pedestal.
So, because screw rod is by axial limiting, helical rotation is broken down into idle running and moved forward and backward, wherein dallying by spiral shell
Swing arm is completed, movable then completed by lift head.
Joint pedestal inner chamber is a kind of pre-large post-small ladder die cavity, and large-scale cavity wall sets and screws internal thread and connecting seat
Corresponding part interlocking, small-sized cavity wall set cylindrical hole to coordinate with lift head gap and are socketed, and the cylinder hole length is more than lift head
The length of corresponding paragraph, has a shoulder block between cylindrical hole and screw thread, a kind of inner seal liner is installed before this shoulder block, rises
The front end of drop head is protruded into connecting seat inner chamber through the endoporus of this inner seal liner.
The screw thread of above-mentioned realization advance and retreat regulation is preferably a kind of trapezoidal thread.
In addition to the device that adjustable diameter and screw adjusting axially elapses, fittings body leading portion can also be nested with joint base by this way
In seat inner chamber：
Fittings body leading portion is plugged in joint pedestal inner chamber with scalable slip mode, in fittings body leading portion and joint pedestal
Chamber carries out the mating connection with damping through sealing ring therebetween.
This mating connection with damping can both realize sealing, can also strengthen feel and can viscous fittings body.
Also include a kind of fittings body of restriction sliding in place that is used for and be difficult to again axially displaced bayonet unit, this buckle dress
Put installed between fittings body and joint pedestal inner chamber.
The fittings body either stepped back or promoted, once sliding is in place, wish no longer to slide before operation of infusing in next time
The fittings body is moved, it is voluntarily axially displaced that bayonet unit can be used for landing nipple body to be not easy it.
This bayonet unit, which has, a variety of specifically constructs available, two kinds therein of following discloses, Yi Zhongshi：
Bayonet unit is a kind of Elastic buckle, by the buckle in joint pedestal side wall, spring and is correspondingly arranged
Neck composition on joint body sidewall, through neck clamping of the pretightning force buckle of spring with sliding in place.
Positioning can be achieved in this Elastic buckle, can depart from clamping in the presence of push-pull effort again.
Another kind is：
Fittings body leading portion is plugged in joint pedestal inner chamber with scalable sliding and rotary way, and bayonet unit is by bayonet lock
And sliding groove composition, bayonet lock emergence is on joint body sidewall, and sliding groove is correspondingly arranged on joint pedestal intracavity sidewall, sliding groove
Be made up of axial groove and transverse groove, the bayonet lock head of emergence is slided in sliding groove, axially groove passage fittings body in place by
Rotation sliding sleeve enter in transverse groove and with the axial direction clamping of joint pedestal.
Transverse groove has gradient, but oblique angle is less than Self-locking angle.
Gradient is easy to be guided into axial groove, and can prevent it in the presence of axial force from line slip less than Self-locking angle.
Further optimization on stop valve is：
The flap of stop valve is located at fittings body termination, end valve sealing surface or stop positioned at joint pedestal inner chamber on wall or
Person is located at connecting seat inner chamber and stopped on wall.
So, fittings body is valve rod again.
Further optimization can be following several specific configurations：
Joint intracoelomic cavity includes vertical passageway and interconnection, and interconnection is located in the inner core of fittings body end, fittings body
End is less than joint pedestal inner chamber, and gap therebetween connects as infusion channel with interconnection, and fittings body termination is in one
It is a kind of truncated cone-shaped step corresponding with the sharp cone distal that kind sharp cone distal, joint pedestal inner chamber or connecting seat inner chamber, which are stopped into wall, should
The interior necking of truncated cone-shaped step is infusion channel mouth.
When fittings body sharp cone distal termination touches with corresponding type conical bench, stop valve closure；And when fittings body retrogressing, cut
Only valve open, infuse via fittings body vertical passageway, interconnection, radial clearance and enter type conical bench in necking.
Joint intracoelomic cavity includes vertical passageway, and flap is a kind of a plurality of elastic gates for being coated on fittings body termination, is connect
It is one kind and a plurality of elastic close-shaped corresponding steps of gate, step that head pedestal inner chamber or connecting seat inner chamber, which are stopped into wall,
Internal orifice is infusion channel, is touched through with the step, a plurality of elastic gates are closed and blocked terminates in that fittings body vertically leads to
Road junction.
So, fittings body is advancing to the position, elastic gate closure, stop valve cut-off；Fittings body retreat lift, elastic gate because
Natural resiliency and open, stop valve open.
Joint intracoelomic cavity includes vertical passageway, and flap is located at the vertical passageway mouth of fittings body termination, joint pedestal inner chamber or
It is that a kind of middle part is dashed forward convex sharp cone distal or truncated cone-shaped toward fittings body direction that person's connecting seat inner chamber, which is stopped into wall, and this stops vertically is leading into wall
A plurality of infusion channels are distributed with the circumferential position of road junction periphery, through the propulsion of fittings body, the sharp cone distal or truncated cone-shaped
Stop into wall dash forward convex middle part extend into fittings body vertical passageway and block terminate in the vertical passageway mouth.
It is located at the periphery of vertical passageway mouth into the infusion channel on wall due to stopping, i.e., beyond the mouth bore of vertical passageway
Region, so, when stop dash forward the closure of convex middle part in vertical passageway mouth into wall when, this stop into the infusion channel on wall can not with it is vertical logical
Road connects, so as to be ended.
In summary, the present invention has the following advantages that compared with prior art：Prevent negative pressure and eliminate negative pressure mode it is simple,
Effectively, it is easy to operate.And the intervention of stop valve, end infusion channel, not only relatively sanitary, peace again while negative pressure is eliminated
Fittings body must be first stepped back when entirely, and from structure ensure that transfusion again（Otherwise stop valve ends, and can not infuse）So that
Transfusion terminates rear joint body, and there is the space promoted to eliminate negative pressure.And the process dammed gradually as fittings body promotes, make
Obtaining stop valve also has the function that flow control valve.
Brief description of the drawings
Fig. 1 is a kind of structural representation of remaining needle in the prior art；
Fig. 2 is the indwelling using the medical infusion joint with stop valve of the present invention plugged into non small cellCatheter
Needle construction schematic diagram；
Fig. 3 is that the medical infusion joint with stop valve plugged into described in the embodiment of the present invention one with non small cellCatheter exists
The structural representation of cut-off state；
Fig. 4 is that the medical infusion joint with stop valve plugged into described in the embodiment of the present invention one with non small cellCatheter exists
The structural representation of opening；
Fig. 5 is the medical infusion joint with stop valve plugged into described in the embodiment of the present invention two with non small cellCatheter
Structural representation；
Fig. 6 is Fig. 5 A direction views；
Fig. 7 is the medical infusion joint with stop valve plugged into described in the embodiment of the present invention three with non small cellCatheter
Structural representation；
Fig. 8 is the medical infusion joint with stop valve plugged into described in preferred embodiment with non small cellCatheter
Structural representation.
Label declaration
The bayonet lock of 1 connecting seat, 11 infusion channel, 2 fittings body, 21 screw rod, 22 lift head, 23 vertical passageway 24
The stop collar of 25 interconnection, 26 gap 27
3 joint pedestals 31 regulation screw 32 screws the flap of 33 sliding groove of screw, 4 stop valve 41
The joint overcoat of 42 sealing surface, 5 seal rubber plug, 6 extension tube, 7 flow-stopping clip, 8 conduit tube component 9.
Embodiment
Embodiment one：
Reference picture 2, it is a kind of to be connect using of the present invention with the medical infusion with stop valve that non small cellCatheter is plugged into
The remaining needle of head, 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 group
Into.
Reference picture 3 and Fig. 4, the medical infusion joint with stop valve plugged into non small cellCatheter, including connecting seat
1st, the extension tube 6 of fittings body 2 and joint pedestal 3, connecting seat front end and inlying catheter is plugged into, joint pedestal 3 and the split of connecting seat 1
Construction but screw 32 is screwed by one kind and connecting seat 1 is affixed.The leading portion of fittings body 2 is plugged in the inner chamber of joint pedestal 3 simultaneously
By one kind regulation screw 31 be connected with the spiral of joint pedestal 3, between fittings body 2 and the inner chamber of joint pedestal 3 between have
The space that the adjustable diameter and screw adjusting of fittings body 2 axially elapses, the inner chamber of fittings body 2 are connected by a kind of stop valve 4 with connecting seat inner chamber.Joint
The inner chamber of pedestal 3 is a kind of pre-small post-large ladder die cavity, and large-scale cavity wall back segment sets advance and retreat internal thread adjustable with fittings body 2
Spiral connects.The step at big small cavity junction surface is that one kind is stopped into wall.The flap 41 of stop valve 4 is located at fittings body termination, sealing
Face 42 is that this of joint pedestal inner chamber stops into wall.The inner chamber of fittings body 2 includes vertical passageway 23, and flap 41 is that one kind is coated on and connect
Two elastic gates of head body end head, it is a kind of close-shaped corresponding with a plurality of elastic gates that joint pedestal inner chamber, which is stopped into wall,
Step, the small cavity of step internal orifice is infusion channel, is touched through with the step, and two elastic gates are closed and blocked and cut
Only 23 mouthfuls of fittings body vertical passageway.This elastic gate is made up of flexible barrier material, and its back segment collar annular in shape, which is fixed on, to be connect
In the seal groove of head body 2 end periphery and form a kind of sealing ring, so as to allow the leading portion of fittings body 2 and the inner chamber of joint pedestal 3 through
The sealing ring carries out the mating connection with damping.Above-mentioned regulation 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 5, the medical infusion joint with stop valve plugged into non small cellCatheter, including connecting seat 1, joint
The extension tube 6 of body 2 and joint pedestal 3, the front end of connecting seat 1 and inlying catheter is plugged into, and the rear end of fittings body 2 is plugged into transfusion device, is connect
Head pedestal 3 and the split of connecting seat 1 construction but screw 32 is screwed by one kind and connecting seat 1 is affixed.Fittings body 2 and joint base
There is the space that fittings body 2 promotes between 3 inner chambers of seat, the inner chamber of fittings body 2 is connected by a kind of stop valve 4 with connecting seat inner chamber,
This stop valve 4 is arranged on above-mentioned fittings body 2 and promotes in space and stop through the fittings body 2 being advancing to the position with corresponding inner chamber into wall
Cut-off touches.The inner chamber of joint pedestal 3 is a kind of pre-small post-large ladder die cavity, and the leading portion of fittings body 2 is with scalable sliding and can turn
Flowing mode is plugged in the large cavity, and carries out the mating connection with damping through sealing ring therebetween.Big small cavity
The step at junction surface is exactly foregoing stops into wall.The flap 41 of stop valve 4 is located at fittings body termination, sealing surface 42 be exactly this stop into
Wall, fittings body 2 are again valve rods.The inner chamber of fittings body 2 includes vertical passageway 23 and interconnection 25, and interconnection 25 is located at fittings body
In 2 end inner cores, the end of fittings body 2 is less than joint pedestal inner chamber, and gap 26 therebetween is as infusion channel with laterally leading to
Road 25 connects, and the termination of fittings body 2 is in a kind of sharp cone distal, and foregoing stop into wall is a kind of truncated cone-shaped step corresponding with the sharp cone distal,
The interior necking of the truncated cone-shaped step is infusion channel mouth.
When the sharp cone distal termination of fittings body 2 touches with corresponding type conical bench, stop valve closure；And work as fittings body and retreat,
Stop valve is opened, infuse via fittings body vertical passageway 23, interconnection 25, radial clearance 26 and inside contract into type conical bench
Mouthful.
Reference picture 6, bayonet unit are made up of bayonet lock 24 and sliding groove 33, and the emergence of bayonet lock 24 slides in the side wall of fittings body 2
Groove 33 is correspondingly arranged on the intracavity sidewall of joint pedestal 3 and runs through side wall, and sliding groove 33 is made up of axial groove and transverse groove, emergence
Bayonet lock 24 slide in sliding groove 33, axially groove passage fittings body 2 in place enters in transverse groove through sliding sleeve is rotated
And with the 3 axial clamping of joint pedestal.Transverse groove has gradient, but oblique angle is less than Self-locking angle.
The not described part of the present embodiment is identical with embodiment one.
Embodiment three：
Reference picture 7, the medical infusion joint with stop valve plugged into non small cellCatheter, including connecting seat 1, joint
The extension tube 6 of body 2 and joint pedestal 3, the front end of connecting seat 1 and inlying catheter is plugged into, and the rear end of fittings body 2 is plugged into transfusion device, is connect
Head pedestal 3 and the split of connecting seat 1 construction but screw 32 is screwed by one kind and connecting seat 1 is affixed.Fittings body 2 and joint base
There is the space that fittings body 2 promotes between 3 inner chambers of seat, the inner chamber of fittings body 2 is connected by a kind of stop valve 4 with connecting seat inner chamber,
This stop valve 4 is arranged on above-mentioned fittings body 2 and promotes in space and stop through the fittings body 2 being advancing to the position with corresponding inner chamber into wall
Cut-off touches.The deeper annular groove of the front end indent one of fittings body 2, after the stem on the inside of this annular groove slides over joint pedestal 3
In the opening up inner chamber of section, the external groove sidevall of this annular groove is threaded corresponding with the external screw thread on joint pedestal back segment periphery wall
Spiral connects, spiral connection composition regulation screw 31.And the leading portion of fittings body 2 is trapped in the inner chamber of stop collar 27,
The rear end face of stop collar 27 sets limited location seam, and fittings body front end is correspondingly arranged spacing shoulder block, and stop collar 27 is solid with joint pedestal 3
Connect.Internal thread external screw thread interlocking corresponding with connecting seat 1 is set in the downward opening inner chamber of the leading portion of joint pedestal 3 and composition screws
Screw 32.The downward stem of projection one of the inner chamber SMIS, in this stem in there is penetrating via, this penetrating via by vertically compared with
Big passage and oblique smaller channels composition, oblique smaller channels tilt the opening up inner chamber of penetrator 3 back segments of pedestal,
Through part is a shoulder block, and this shoulder block stops into wall and as the sealing surface 42 of stop valve 4 to be foregoing.The inner chamber of fittings body 2 includes perpendicular
To passage 23, flap 41 is fittings body termination, shares a plurality of oblique smaller channels mouths and is arranged on 23 mouthfuls of vertical passageway periphery
Circumferential position on, through the propulsion of fittings body 2, the fittings body termination, which covers, stops on wall, ended vertical passageway 23 with
The connection of oblique smaller channels.
The not described part of the present embodiment is identical with embodiment one.
Most preferred embodiment：
Reference picture 8, the medical infusion joint with stop valve plugged into non small cellCatheter, including connecting seat 1, joint
The extension tube 6 of body 2 and joint pedestal 3, the front end of connecting seat 1 and inlying catheter is plugged into, and joint pedestal 3 constructs with the split of connecting seat 1
But screw 32 is screwed by one kind and connecting seat 1 is affixed.The leading portion of fittings body 2 is plugged in the inner chamber of joint pedestal 3, fittings body
2 inner chambers are connected by a kind of stop valve 4 with the inner chamber of connecting seat 1.Fittings body 2 is made up of screw rod 21 and lift head 22, with transfusion
The seal rubber plug 5 that needle tubing is plugged into is located at the tail end of screw rod 21, the leading portion of screw rod 21 be plugged in the inner chamber of lift head 22 and with its spiral shell
Rotation connection, screw rod 21 also be connected with the axial limiting of joint pedestal 3, and lift head 22 is with can opposing tabs pedestal 3 is front and rear slides
Mode is nested with the inner chamber of joint pedestal 3.The inner chamber of joint pedestal 3 is a kind of pre-large post-small ladder die cavity, large-scale cavity wall
Setting screws screw 32 and the corresponding part interlocking of connecting seat 1, and small-sized cavity wall sets cylindrical hole to match somebody with somebody with the gap of lift head 22
Trap connects, and the cylinder hole length is more than the length of the corresponding paragraph of lift head 22, so that lift head 22 or even fittings body 2 have spiral shell
Tune space of the nodal axisn to passage.Cylindrical hole and screw between screw 32 there is a shoulder block, a kind of inner seal liner is arranged on
Before this shoulder block, the front end of lift head is protruded into the inner chamber of connecting seat 1 through the endoporus of this inner seal liner.Fittings body 2 is with connecting
There is the space that fittings body 2 promotes, stop valve 4 is arranged on above-mentioned fittings body and promoted in space and through pushing away between the inner chamber of joint chair 1
The fittings body that enters in place and stop with the inner chamber of connecting seat 1 into wall cut-off and touching.The inner chamber of fittings body 2 includes the inner chamber of screw rod 21 and lifting
First 22 inner chamber, all it is vertical passageway 23, flap 41 is located at the vertical passageway mouth of the termination of lift head 22, and the foregoing inner chamber of connecting seat 1 is stopped
It is that a kind of middle part is dashed forward convex sharp cone distal or truncated cone-shaped toward fittings body direction to enter wall, and this stops the circumference in vertical passageway mouth periphery into wall
A plurality of infusion channels 11 are distributed with position, through the propulsion of fittings body 2, the sharp cone distal or truncated cone-shaped stop into wall dash forward it is convex in
Portion, which extend into fittings body vertical passageway 23 and blocked, terminates in the vertical passageway mouth.It is located at due to stopping into the infusion channel 11 on wall
The periphery of vertical passageway mouth, the i.e. region beyond the mouth bore of vertical passageway, so, convex middle part closure are dashed forward perpendicular when stopping into wall
During to passway, this stops can not connect into the infusion channel 11 on wall with vertical passageway 23, so as to be ended.
The not described part of the present embodiment is identical with embodiment one.
Claims (13)
1. the medical infusion joint with stop valve plugged into non small cellCatheter, including connecting seat and fittings body, connecting seat
The extension tube of front end and inlying catheter is plugged into, and fittings body rear end is plugged into transfusion device, it is characterised in that also including a kind of joint base
Seat, this joint pedestal is either with connecting seat Construction integration or split construction but affixed with connecting seat, and fittings body leading portion is can push away
The mode entered and retreated is nested with joint pedestal inner chamber, between fittings body and joint pedestal inner chamber or fittings body and connecting seat
There is the space that fittings body promotes, fittings body between inner chamber or between fittings body and joint pedestal inner chamber and connecting seat inner chamber
Inner chamber is connected by a kind of stop valve with connecting seat inner chamber, and this stop valve is arranged on above-mentioned fittings body and promoted in space and through pushing away
The fittings body that enters in place and stop with corresponding inner chamber into wall cut-off and touching；
Also include the device that a kind of adjustable diameter and screw adjusting axially elapses, be able to promote and retreat through this device fittings body
Mode is socketed with joint pedestal；Fittings body leading portion is plugged in joint pedestal inner chamber and is connected with joint base helical；
The deeper annular groove of fittings body front end indent one, the stem on the inside of this annular groove slide over joint pedestal back segment opening court
On inner chamber in, the external groove sidevall of this annular groove is threaded spiral corresponding with the external screw thread on joint pedestal back segment periphery wall and connected
Connect, the device that spiral connection composition adjustable diameter and screw adjusting axially elapses, and fittings body leading portion is trapped in the inner chamber of stop collar, limit
Position set rear end face sets limited location seam, and fittings body front end is correspondingly arranged spacing shoulder block, and stop collar and joint pedestal are affixed, joint
Internal thread external screw thread interlocking corresponding with connecting seat, the inner chamber SMIS downward projection are set in the downward opening inner chamber of pedestal leading portion
One stem, during this stem is interior there is penetrating via to be connected respectively with joint intracoelomic cavity and connecting seat inner chamber.
2. the medical infusion joint with stop valve according to claim 1 plugged into non small cellCatheter, its feature
It is, joint pedestal inner chamber is a kind of pre-large post-small ladder die cavity, and large-scale cavity wall sets and screws internal thread and connecting seat pair
Part interlocking is answered, small-sized cavity wall sets advance and retreat internal thread to can adjust spiral with fittings body and is connected, set before advance and retreat internal thread
There is a kind of shoulder block, inner seal liner is installed before this shoulder block, and fittings body paragraph corresponding with this inner seal liner is a kind of cylinder.
3. the medical infusion joint with stop valve according to claim 1 plugged into non small cellCatheter, its feature
It is, fittings body is made up of screw rod and lift head, is located at screw rod tail end, screw rod leading portion with the seal rubber plug that needle tubing is plugged into
It 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 with can phase
The mode of the front and rear sliding of butt joint pedestal is nested with the inner chamber of joint pedestal.
4. the medical infusion joint with stop valve according to claim 3 plugged into non small cellCatheter, its feature
It is, joint pedestal inner chamber is a kind of pre-large post-small ladder die cavity, and large-scale cavity wall sets and screws internal thread and connecting seat pair
Part interlocking is answered, small-sized cavity wall sets cylindrical hole to coordinate with lift head gap and is socketed, and the cylinder hole length is more than lift head pair
The length of paragraph is answered, there is a shoulder block between cylindrical hole and screw thread, a kind of inner seal liner is installed before this shoulder block, lifting
The front end of head is protruded into connecting seat inner chamber through the endoporus of this inner seal liner.
5. the medical infusion joint with stop valve according to claim 1 plugged into non small cellCatheter, its feature
It is, fittings body leading portion is plugged in joint pedestal inner chamber with scalable slip mode, fittings body leading portion and joint pedestal inner chamber
The mating connection with damping is carried out through sealing ring therebetween.
6. the medical infusion joint with stop valve according to claim 1 plugged into non small cellCatheter, its feature
It is, fittings body leading portion is plugged in joint pedestal inner chamber with scalable slip mode, fittings body leading portion and joint pedestal inner chamber
The mating connection with damping is carried out through sealing ring therebetween, is also included a kind of for limiting the joint of sliding in place
Body is difficult to again axially displaced bayonet unit, and this bayonet unit is arranged between fittings body and joint pedestal inner chamber.
7. the medical infusion joint with stop valve according to claim 6 plugged into non small cellCatheter, its feature
It is, bayonet unit is a kind of Elastic buckle, is connect by the buckle in joint pedestal side wall, spring and being correspondingly arranged at
Neck composition on head body sidewall, through neck clamping of the pretightning force buckle of spring with sliding in place.
8. the medical infusion joint with stop valve according to claim 6 plugged into non small cellCatheter, its feature
Be, fittings body leading portion is plugged in joint pedestal inner chamber with scalable sliding and rotary way, bayonet unit by bayonet lock and
Sliding groove form, on joint body sidewall, sliding groove is correspondingly arranged on joint pedestal intracavity sidewall bayonet lock emergence, sliding groove by
Axial groove and transverse groove composition, the bayonet lock head of emergence slided in sliding groove, axially the fittings body of groove passage in place through
Rotate sliding sleeve enter in transverse groove and with the axial direction clamping of joint pedestal.
9. the medical infusion joint with stop valve according to claim 8 plugged into non small cellCatheter, its feature
It is, transverse groove has gradient, but oblique angle is less than Self-locking angle.
10. the medical infusion joint with stop valve according to claim 1 plugged into non small cellCatheter, its feature
Be, the flap of stop valve is located at fittings body termination, cut-off valve sealing surface either stop positioned at joint pedestal inner chamber on wall or
Stop positioned at connecting seat inner chamber on wall.
11. the medical infusion joint with stop valve plugged into non small cellCatheter according to claim 1 or 10, its
It is characterised by, joint intracoelomic cavity includes vertical passageway and interconnection, and interconnection is located in the inner core of fittings body end, fittings body
End is less than joint pedestal inner chamber, and radial clearance therebetween connects as infusion channel with interconnection, fittings body termination
In a kind of sharp cone distal, it is a kind of truncated cone-shaped platform corresponding with the sharp cone distal that joint pedestal inner chamber or connecting seat inner chamber, which are stopped into wall,
Rank, the interior necking of the truncated cone-shaped step is infusion channel mouth, when fittings body sharp cone distal termination touches with corresponding type conical bench,
Stop valve closes, and when fittings body retreats, stop valve is opened, and is infused via fittings body vertical passageway, interconnection, radial clearance
And enter necking in type conical bench.
12. the medical infusion joint with stop valve according to claim 10 plugged into non small cellCatheter, it is special
Sign is, joint intracoelomic cavity includes vertical passageway, and flap is a kind of a plurality of elastic gates for being coated on fittings body termination, joint
It is a kind of and a plurality of elastic close-shaped corresponding steps of gate that pedestal inner chamber or connecting seat inner chamber, which are stopped into wall, in step
Mouthful it is infusion channel, is touched through with the step, a plurality of elastic gates, which are closed and blocked, terminates in fittings body vertical passageway
Mouthful.
13. the medical infusion joint with stop valve according to claim 10 plugged into non small cellCatheter, it is special
Sign is, joint intracoelomic cavity includes vertical passageway, and flap is located at the vertical passageway mouth of fittings body termination, joint pedestal inner chamber or
It is that a kind of middle part is dashed forward convex sharp cone distal or truncated cone-shaped toward fittings body direction that connecting seat inner chamber, which is stopped into wall, and this stops into wall in vertical passageway
A plurality of infusion channels are distributed with the circumferential position of mouthful periphery, through the propulsion of fittings body, the sharp cone distal or truncated cone-shaped only
Enter wall dash forward convex middle part extend into fittings body vertical passageway and block terminate in the vertical passageway mouth.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/075625 WO2014183272A1 (en) | 2013-05-15 | 2013-05-15 | Medical infusion connector connected to extracorporal indwelling catheter and having stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105209089A CN105209089A (en) | 2015-12-30 |
| CN105209089B true CN105209089B (en) | 2018-01-30 |
Family
ID=51897593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380075587.6A Active CN105209089B (en) | 2013-05-15 | 2013-05-15 | The medical infusion joint with stop valve plugged into non small cellCatheter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105209089B (en) |
| WO (1) | WO2014183272A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107320814B (en) * | 2017-08-24 | 2023-04-07 | 李霞 | Remaining needle fixing and protecting bandage |
| CN110075382B (en) * | 2019-05-29 | 2024-04-19 | 浙江伏尔特医疗器械股份有限公司 | Multifunctional non-PVC material transfusion system |
| CN112107790A (en) * | 2020-10-14 | 2020-12-22 | 上海励楷科技有限公司 | Pipe sealing device with pipe sealing liquid and pipe sealing method |
| CN116642127B (en) * | 2023-07-21 | 2024-05-07 | 河南豫氢装备有限公司 | High-pressure hydrogen filling gun for hydrogen fuel cell automobile and use method thereof |
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|---|---|---|---|---|
| US5041087A (en) * | 1988-08-11 | 1991-08-20 | Loo George D H | Needle-less parenteral fluid injector |
| CN201524325U (en) * | 2009-10-16 | 2010-07-14 | 单瑜成 | Disposable infusion set |
| CN203342194U (en) * | 2013-05-15 | 2013-12-18 | 福建省百仕韦医用高分子股份有限公司 | Medical infusion adapter which is provided with check valve and connected with extracorporal indwelling catheter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001170188A (en) * | 1999-12-17 | 2001-06-26 | Terumo Corp | Connector |
| JP4116785B2 (en) * | 2001-11-14 | 2008-07-09 | テルモ株式会社 | connector |
| CN100479873C (en) * | 2006-02-22 | 2009-04-22 | 张亚平 | Needle-free closed transfusion adaptor |
| CN201061639Y (en) * | 2007-08-08 | 2008-05-21 | 孙东 | Non-needle enclosed transfusion joint |
| CN101195054A (en) * | 2007-11-21 | 2008-06-11 | 张亚平 | Non-needle positive pressure enclosed transfusion joint valve |
| JPWO2010010870A1 (en) * | 2008-07-25 | 2012-01-05 | 株式会社根本杏林堂 | Medical connector device |
| CN201791158U (en) * | 2010-09-16 | 2011-04-13 | 吴林元 | Positive pressure needle-less connecting piece |
| CN202605411U (en) * | 2012-04-12 | 2012-12-19 | 福建省百仕韦医用高分子股份有限公司 | Medical needle-free positive pressure joint |
| CN202751645U (en) * | 2012-09-11 | 2013-02-27 | 郑州昊能科技有限公司 | Bothway positive-negative pressure check negative-pressure transmission device of disposable vein infusion set |
| CN203342118U (en) * | 2013-05-15 | 2013-12-18 | 福建省百仕韦医用高分子股份有限公司 | Pull positive pressure type medical infusion adapter which is connected with extracorporal indwelling catheter |
-
2013
- 2013-05-15 CN CN201380075587.6A patent/CN105209089B/en active Active
- 2013-05-15 WO PCT/CN2013/075625 patent/WO2014183272A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5041087A (en) * | 1988-08-11 | 1991-08-20 | Loo George D H | Needle-less parenteral fluid injector |
| CN201524325U (en) * | 2009-10-16 | 2010-07-14 | 单瑜成 | Disposable infusion set |
| CN203342194U (en) * | 2013-05-15 | 2013-12-18 | 福建省百仕韦医用高分子股份有限公司 | Medical infusion adapter which is provided with check valve and connected with extracorporal indwelling catheter |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014183272A1 (en) | 2014-11-20 |
| CN105209089A (en) | 2015-12-30 |
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