CN208426489U - A kind of micro sustained release connector - Google Patents
A kind of micro sustained release connector Download PDFInfo
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- CN208426489U CN208426489U CN201720961053.9U CN201720961053U CN208426489U CN 208426489 U CN208426489 U CN 208426489U CN 201720961053 U CN201720961053 U CN 201720961053U CN 208426489 U CN208426489 U CN 208426489U
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- micro
- sustained release
- shell
- liquid feeding
- release connector
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Abstract
A kind of micro sustained release connector is provided with shell, piston mechanism, sustained release out splice going splice, liquid feeding interface, filling mechanism；The piston mechanism activity is assemblied in the inner cavity of shell, and the liquid feeding interface, sustained release out splice going splice are connected to the inner cavity of the shell respectively；The liquid feeding interface is set to the side of the close sustained release out splice going splice of the shell, and filling mechanism is provided with one-way valve structures, and one-way valve structures are connected to by conduit with liquid feeding interface sealing.It is sustained in the output end spiral outside cone joint internal channel of out splice going splice and is equipped with micro slow release fibre structure.The micro sustained release connector can be realized the micro sustained release connector of continuous micro slow release infusion, be used by connection venous detaining needle, the generation of the blocking, thrombus, blood return phenomenon that prevent venous detaining needle from occurring in non-infusion shape, easy to operate.
Description
Technical field
The utility model relates to medical instruments field, in particular to a kind of micro sustained release connector.
Background technique
With the continuous improvement of nursing technique, medical supplies are constantly updated, and remaining needle is by world health organisation recommendations
Safest Centesis instrument.It is easy to operate, can reduce and puncture, protects blood vessel and mitigate patient's pain repeatedly, facilitate clinical use
Medicine and emergency rescue alleviate workload of the nurse, have been widely used in clinic.But venous detaining needle goes out again in clinical position
Some new problems are showed, after each infused, if directly pulling out needle tubing or conehead or infusion apparatus from indwelling instrument
External connector is persistently supplemented without subsequent liquid, and the catheter tip of remaining needle will generate arterial-venous transit and thrombus is caused to block,
It causes indwelling instrument to scrap, therefore is often used positive pressure connector to prevent blood backflow from blocking.In practical operation, medical staff 6 is small
Shi Jinhang is primary to remaining needle washing pipe, considerably increases the workload of medical staff in this way.
Therefore, in view of the shortcomings of the prior art, providing a kind of micro sustained release connector very necessity to overcome the deficiencies of the prior art.
Utility model content
The purpose of this utility model is that in view of the shortcomings of the prior art, providing one kind can be realized continuous micro slow release
The micro sustained release connector of infusion is used by connection venous detaining needle, can prevent venous detaining needle appearance in non-infusion shape
Blocking, the generation of thrombus, blood return phenomenon, have the characteristics that easy to use and operate.
The above-mentioned purpose of the utility model is realized by following technological means.
A kind of micro sustained release connector is provided, shell, piston mechanism, sustained release out splice going splice and the liquid feeding for being provided with tubulose connect
Mouthful.
The piston mechanism activity is assemblied in the inner cavity of shell, the liquid feeding interface, sustained release out splice going splice respectively with it is described
The inner cavity of shell is connected to.
The liquid feeding interface is set to the side of the close sustained release out splice going splice of the shell.
It is additionally provided with filling mechanism, the filling mechanism is connected to the liquid feeding interface.
The filling mechanism is provided with one-way valve structures, and the one-way valve structures are connected by conduit and liquid feeding interface sealing
It is logical.
Preferably, above-mentioned sustained release out splice going splice is set as output end spiral outside cone joint, in output end spiral outside cone joint
Channel is equipped with micro slow release fibre structure, and micro slow release fibre structure is by micro- infiltration fibre core and is coated on micro- infiltration fibre
The plastic pipe for tieing up core outer surface is constituted, and micro- infiltration fibre core is in the form of a column, and micro slow release fibre structure is assemblied in output end
The inside of spiral outside cone joint internal channel, and the inner wall sealing of plastic pipe and output end spiral outside cone joint internal channel is affixed.
Preferably, above-mentioned micro- diameter for seeping fibre core is 0.05-0.5mm.
Preferably, above-mentioned plastic pipe connect with the inner wall of output end spiral outside cone joint internal channel by adhesive sealing or
It is tightly connected by buckle.
Sustained release out splice going splice is set as output end spiral outside cone joint, and output end spiral outside cone joint internal channel is equipped with micro-
Slow release fibre structure is measured, the micro slow release fibre structure is in the form of a column, and micro slow release fibre structure is assemblied in
The inside of output end spiral outside cone joint internal channel, and lead in micro slow release fibre structure and output end spiral outside cone joint
The inner wall sealing in road is affixed.
Preferably, the inner wall of above-mentioned micro slow release fibre structure and output end spiral outside cone joint internal channel passes through glue
It is viscous to be tightly connected or be tightly connected by buckle.
Preferably, outer cone Rule column bottom of above-mentioned shell is connected to output end spiral outside cone joint, described outer cone Rule
The inner wall of column bottom is provided with convex column, and convex column is towards the inner cavity of shell.
Preferably, the length of above-mentioned convex column is 0.2-10mm, and the present embodiment is preferably 0.5-1mm or so.
Preferably, above-mentioned convex column is set as minimum of one or more, and the present embodiment is preferably 4, and the convex column is in circle
Cylinder, cone, rotary table or cylinder.
Preferably, the bottom of above-mentioned shell is fixedly connected with fixed lid, has newel, retaining ring and welding in the fixed lid
Wire loop；
The piston mechanism is provided with piston seal, piston core pin and spring, piston core pin one end and piston seal
Assembly, piston core pin are further fixedly arranged on coordination ring, and one end of spring is assemblied in newel outside wall surface, the other end assembly of spring
In in coordination ring, and the both ends of spring are abutted with fixed lid, piston core pin respectively, are coordinated internal diameter of the internal diameter less than retaining ring of ring.
Preferably, above-mentioned micro sustained release connector is additionally provided with tapered joint lid protecting cover in spiral, and tapered joint lid protecting cover is close in spiral
Encapsulation is assigned in output end spiral outside cone joint.
Preferably, above-mentioned micro sustained release connector is additionally provided with filling mechanism, the filling mechanism and the liquid feeding interface
Connection；
The filling mechanism is provided with one-way valve structures, and the one-way valve structures are connected by conduit and liquid feeding interface sealing
It is logical.
Preferably, above-mentioned filling mechanism is additionally provided with helmet, and the helmet is installed on the end of the check valve.
The micro sustained release connector of the utility model is provided with shell, piston mechanism, sustained release out splice going splice, liquid feeding interface, adds
Liquid mechanism；The piston mechanism activity is assemblied in the inner cavity of shell, the liquid feeding interface, sustained release out splice going splice respectively with the shell
The inner cavity of body is connected to；The liquid feeding interface is set to the side of the close sustained release out splice going splice of the shell, is additionally provided with liquid feeding
Mechanism, the filling mechanism are connected to the liquid feeding interface；The filling mechanism is provided with one-way valve structures, the check valve knot
Structure is connected to by conduit with liquid feeding interface sealing.The micro sustained release connector that can be realized the infusion of continuous micro slow release, passes through
It connects venous detaining needle to use, the generation of the blocking, thrombus, blood return phenomenon that prevent venous detaining needle from occurring in non-infusion shape.
Upper this micro slow release connector is connected after the completion of retention needle infusion makes remaining needle because there is subsequent liquid persistently to supplement
Catheter tip will not generate arterial-venous transit thrombus is caused to block, from without needing every 6 hours as traditional remaining needle
It is primary to carry out washing pipe, significantly reduces the workload of medical staff, and guarantees that secondary infusion is unobstructed.This principle has great
Innovation meaning is able to adequately safely and effectively ensure to medical staff and using patient.
Detailed description of the invention
The utility model is further described using attached drawing, but the content in attached drawing is not constituted to the utility model
Any restrictions.
Fig. 1 is a kind of structural schematic diagram of micro sustained release connector of the utility model.
Fig. 2 is the decomposition texture schematic diagram in Fig. 1.
Fig. 3 is the section signal of the shell in Fig. 1.
Fig. 4 is the cut-away section status diagram of Fig. 1.
Fig. 5 is the profile status schematic diagram for dispensing tapered joint lid cover portion in spiral of Fig. 4.
Fig. 6 is the decomposition diagram of Fig. 4.
Fig. 7 is the cut-away section status diagram under micro another state of sustained release connector in Fig. 1.
In Fig. 1 into Fig. 7, comprising:
Shell 100, outer cone Rule column bottom 110, convex column 120,
Piston seal 210, spring 220, piston core pin 230, coordination ring 240,
Sustained release out splice going splice 300,
Output end spiral outside cone joint internal channel 310,
Micro slow release fibre structure 320,
Micro- infiltration fibre core 321, plastic pipe 322,
Liquid feeding interface 400,
Fixed lid 500, retaining ring 510, newel 520, welding wire loop 530,
Tapered joint lid protecting cover 600 in spiral,
Filling mechanism 700, one-way valve structures 710, conduit 720, helmet 730.
Specific embodiment
The utility model is further described with the following Examples.
Embodiment 1.
A kind of micro sustained release connector is provided with shell 100, piston mechanism, sustained release out splice going splice as shown in Figures 1 to 7
300 and liquid feeding interface 400, it is additionally provided with filling mechanism 700.
Piston mechanism activity is assemblied in the inner cavity of shell 100, liquid feeding interface 400, sustained release out splice going splice 300 respectively with shell
100 inner cavity connection.Liquid feeding interface 400 is set to the side of the close sustained release out splice going splice 300 of shell 100.Filling mechanism 700
It is connected to liquid feeding interface 400, liquid feeding is carried out by filling mechanism 700.
Specifically, sustained release out splice going splice 300 is set as output end spiral outside cone joint, spiral outside cone joint internal channel 310
It is equipped with the micro slow release fibre structure 320 of micro slow release fibre structure.
Micro slow release fibre structure 320 is by micro- infiltration fibre core 321 and is coated on micro- plastic cement for seeping fiber core outer surface
Pipe 322 is constituted, and micro- infiltration fibre core 321 is in the form of a column.Micro slow release fibre structure 320 is assemblied in output end spiral outside cone joint
The inside of internal channel, and the inner wall sealing of plastic pipe and output end spiral outside cone joint internal channel is affixed.Specifically, plastic pipe with
The inner wall of output end spiral outside cone joint internal channel is connected by adhesive sealing or is tightly connected by buckle.
Micro 320 structure of slow release fibre structure can be realized liquid and slowly export.Micro- 321 material of infiltration fibre core can be with
Selection cotton thread, nylon wire, terylen line etc. are able to achieve the Fiber Materials of Liquid Penetrant function.Plastic pipe 322 selects medical grade other
The preparation of the plastic materials such as TPU, PVC.Plastic material is passed through to extrusion molding or compression moulding preparation shape together with micro- material for seeping fibre core
At.Micro- diameter control for seeping fibre core 321 is in 0.05-0.5mm, effectively to control the time of micro- infiltration.
Outer cone Rule column bottom 110 of shell 100 with sustained release out splice going splice 300 be connected to, outer cone Rule column bottom 110 it is interior
Wall surface is provided with convex column 120, and convex column 120 is towards the inner cavity of shell 100.The length of convex column 120 is preferably 0.2-10mm,
It is preferably 0.5~1mm in the present embodiment.In the present embodiment, convex column 120 is cylindrical body, is preferably arranged to four.Convex column
Setting, convenient for when liquid feeding interface enters liquid, piston mechanism is convenient for mobile towards the direction far from sustained release out splice going splice.If not yet
There is convex column, piston seal is bonded with outer cone Rule column bottom inner wall, and the liquid of outside injection is not easy piston seal
It is squeezed with outer cone Rule column bottom.
It should be noted that the number and shape of convex column 120 are not limited to the form of this implementation.Also it can according to need
Minimum 1 or more is set by convex column 120, and convex column 120 can be in cylindrical body, cone, rotary table or cylinder, can also be with
It is set as other shapes.
The bottom of shell 100 is fixedly connected with fixed lid 500, can be fixedly connected by welding, can also be passed through spiral
Or buckle is fixedly connected.There are newel 520, retaining ring 510 and welding wire loop 530 in fixed lid 500.Newel is fixed convenient for spring
Position, for retaining ring 510 convenient for positioning in spring-compressed state to spring, welding wire loop 530 is convenient for assemble welding.
Piston mechanism is provided with piston seal 210, piston core pin 230 and spring 220, and one end of spring 220 is assemblied in
520 outside wall surface of newel, piston core pin 230 are further fixedly arranged on coordination ring 240, and the other end of spring 220 is assemblied in coordination ring
In 240, and the both ends of spring 220 are abutted with fixed lid, piston core pin respectively, and the internal diameter of coordination ring 240 is less than the interior of retaining ring 510
Diameter.Spring is positioned by newel, coordination part, and in the state of spring-compressed, coordination ring is just assemblied in retaining ring, is filled
With more firm.
The micro sustained release connector is additionally provided with tapered joint lid protecting cover 600 in spiral, and tapered joint lid protecting cover 600 is assemblied in spiral
It is sustained out splice going splice 300.
The micro sustained release connector is additionally provided with filling mechanism 700.Filling mechanism 700 is connected to liquid feeding interface 400, by adding
Liquid mechanism 700 carries out dosing.
Specifically, filling mechanism 700 is provided with one-way valve structures 710, one-way valve structures 710 pass through conduit 720 and liquid feeding
The sealing connection of interface 400.One-way valve structures in external female Luer, open by way valve passageway, and when withdrawing female Luer,
Then channel is closed.There are many implementations of single-phase valve arrangement, enters in chemical feed pipe body as long as can be realized unidirectionally controlled liquid
The check valve that can be used as the application, will not repeat them here.
In addition, the filling mechanism 700 is additionally provided with helmet 730, helmet 730 is assemblied in outside dosing tube body 710, is realized and is protected
Shield effect.
Dosing channel is connected by syringe, the liquid in syringe can enter the inner cavity of dosing tube body 710.Dosing is living
The implementation for filling in 210 mechanisms can be general knowledge known in this field there are many form, the technology, numerous to list herein.It is single-phase
Valve arrangement is controlled when external female Luer, and way valve passageway is opened, and when withdrawing female Luer, then channel is closed.
The micro sustained release connector, use be such that in a state of fig. 7, to withdraw helmet 730, by syringe to
Dosing tube body 710 is injected, and liquid enters the inner cavity of dosing tube body 710 and enters 100 inner cavity of shell by dosing connector, and squeezes
Piston seal 210, piston seal 210 are mobile towards fixed 500 direction of lid together with 230 compressed spring 220 of piston core pin.
In injection liquid process, after the extra air of inside cavity is expelled back into syringe automatically by the adjustment of liquid feeding interface 400, then
In the cavity that liquid in syringe is injected to full shell 100, syringe is then withdrawn, because of the effect liquid filler of one-way valve structures
Structure self-closed.At this point, because tapered joint lid protecting cover 600 in spiral and the sustained release sealing of out splice going splice 300 assemble, the micro sustained release connector
Liquid cannot be slowly released, as shown in Figure 4.Tapered joint lid protecting cover 600 in spiral is removed, as shown in figure 5, the micro sustained release is connect
Head is connect with remaining needle, and spring 220 is gradually replied, and pushes piston 210 gradually mobile towards 110 direction of outer cone Rule column bottom, chamber
Intracorporal liquid is slowly penetrated in remaining needle by micro 320 continuous micro of slow release fibre structure.The micro sustained release
Connector can be realized the micro sustained release connector of continuous micro slow release infusion, is used, is prevented quiet by connection venous detaining needle
The generation of blocking, thrombus, blood return phenomenon that vein occurs in non-infusion shape.
The micro sustained release connector, micro- infiltration capacity is big, the duration is long, and the appearance milliosmolarity of 0.7ml or so may be implemented.This is micro
It is sustained connector, can be realized 24 hours or more the effects for continuing sepage.
Upper this micro slow release connector is connected after the completion of retention needle infusion, from such without traditional remaining needle
It needs every washing pipe of carry out in 6 hours primary, significantly reduces the workload of medical staff, and guarantee that secondary infusion is unobstructed.This
Principle has invention of great significance innovative significance, is able to adequately safely and effectively ensure to medical staff and using patient.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the utility model rather than to this is practical
The limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, the common skill of this field
Art personnel should be appreciated that can be practical without departing from this with the technical solution of the present invention is modified or equivalently replaced
The spirit and scope of new technique scheme.
Claims (10)
1. a kind of micro sustained release connector, it is characterised in that: it is provided with the shell, piston mechanism, sustained release out splice going splice, liquid feeding of tubulose
Interface and filling mechanism；
The piston mechanism activity is assemblied in the inner cavity of shell, the liquid feeding interface, sustained release out splice going splice respectively with the shell
Inner cavity connection；
The liquid feeding interface is set to the side of the close sustained release out splice going splice of the shell；The filling mechanism and the liquid feeding
Orifice；
The filling mechanism is provided with one-way valve structures, and the one-way valve structures are connected to by conduit with liquid feeding interface sealing.
2. micro sustained release connector according to claim 1, it is characterised in that: the sustained release out splice going splice is set as output end
Spiral outside cone joint, output end spiral outside cone joint internal channel are equipped with micro slow release fibre structure, micro slow release
Fibre structure is made of micro- plastic pipe for seeping fibre core and being coated on micro- infiltration fiber core outer surface, and micro- infiltration fibre core is in column
Shape, micro slow release fibre structure are assemblied in the inside of output end spiral outside cone joint internal channel, and plastic pipe and output end
The inner wall sealing of spiral outside cone joint internal channel is affixed.
3. micro sustained release connector according to claim 2, it is characterised in that: micro- diameter for seeping fibre core is 0.05-
0.5mm。
4. micro sustained release connector according to claim 3, it is characterised in that: the plastic pipe and the outer tapered joint of output end spiral
The inner wall of head internal channel is connected by adhesive sealing or is tightly connected by buckle.
5. micro sustained release connector according to claim 4, it is characterised in that: outer cone Rule column bottom of the shell with it is defeated
The connection of outlet spiral outside cone joint, the inner wall of described outer cone Rule column bottom are provided with convex column, and convex column is towards shell
Inner cavity.
6. micro sustained release connector according to claim 5, it is characterised in that: the length of the convex column is 0.2-10mm.
7. micro sustained release connector according to claim 6, it is characterised in that: the convex column is set as 1 or more, described
Convex column is in cylindrical body, cone, rotary table or cylinder.
8. micro sustained release connector according to claim 7, it is characterised in that: the bottom of the shell and the fixed company of fixed lid
It connects, there is newel, retaining ring and welding wire loop in the fixed lid；
The piston mechanism is provided with piston seal, piston core pin and spring, and piston core pin one end and piston seal assemble,
Piston core pin is further fixedly arranged on coordination ring, and one end of spring is assemblied in newel outside wall surface, and the other end of spring, which is assemblied in, matches
In the ring of position, and the both ends of spring are abutted with fixed lid, piston core pin respectively, and the internal diameter for being coordinated ring is less than the internal diameter of retaining ring.
9. micro sustained release connector according to claim 8, it is characterised in that: be additionally provided with tapered joint lid protecting cover, spiral shell in spiral
The sealing of medial rotation tapered joint lid protecting cover is assemblied in output end spiral outside cone joint.
10. micro sustained release connector according to claim 9, it is characterised in that: filling mechanism is additionally provided with helmet, the shield
Cap is installed on the end of the check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961053.9U CN208426489U (en) | 2017-08-02 | 2017-08-02 | A kind of micro sustained release connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961053.9U CN208426489U (en) | 2017-08-02 | 2017-08-02 | A kind of micro sustained release connector |
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| Publication Number | Publication Date |
|---|---|
| CN208426489U true CN208426489U (en) | 2019-01-25 |
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ID=65104373
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|---|---|---|---|
| CN201720961053.9U Active CN208426489U (en) | 2017-08-02 | 2017-08-02 | A kind of micro sustained release connector |
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| CN (1) | CN208426489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975061A (en) * | 2019-11-19 | 2020-04-10 | 王君霞 | Puncture-preventing remaining needle capable of continuously supplying liquid |
-
2017
- 2017-08-02 CN CN201720961053.9U patent/CN208426489U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975061A (en) * | 2019-11-19 | 2020-04-10 | 王君霞 | Puncture-preventing remaining needle capable of continuously supplying liquid |
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