A kind of anti-acupuncture puncture type connector dedicated transfusion pinTechnical field
This utility model relates to medical instruments field, is specifically related to a kind of anti-acupuncture puncture type connector dedicated transfusion pin,This product is exclusively used in the transfusion and blood transfusion use being furnished with puncture type connector product.
Background technology
We, find to lead with remaining needle, central vein in Present clinical transfusion through long-term observation and experiment in clinicThe transfusion indwelling tools such as pipe connect the utensil of transfusion and there is a lot of defect, do not have so far actual to produce in batches and can actual graspMake the special implement used, and existing disclosed technical scheme is due to structure or technological problems, production difficulty and operationPerformance deficiency causes product be difficult to actual application and promote, and their defect is:
After the most existing transfusion needle docks with the puncture type connector of indwelling apparatus, unprotected or fixing device, it is impossible toUnsettled connection, can only be fixed on the limbs of people.
After the most existing transfusion needle docks with the puncture type connector of indwelling apparatus, at the strong point that both are positioned on human bodyIn Different Plane, use adhesive tape can not fix firm to transfusion needle stand and puncture type connector so that transfusion needle root is easily subject toTo breaking force, bent needle phenomenon occurs.
3. adhesive tape is fixed, and one is to cause patient to need to accept more adhesive tape sticking, it is also possible to cause the probability of allergyIncreasing, another is that operation is cumbersome.
The most existing non-security and safety transfusion needle is the most unreliable, operation can not avoid accidental needle sticks to hinder completely.
The most existing secure private transfusion needle technology can not puncture the position that puncture type connector transfusion end face is different.
6. traditional infusion pin needle tubing is oversize relative to puncture type connector, easily occurs that in bent needle and connection procedure, needle point is encounteredNeedle point barb, when extracted damage puncture type connector sealing member is made on the sidewall of infusion set.
The most existing safety transfusion needle can not be connected with the puncture type connector on Y type remaining needle.
8. we find in clinical investigation, and existing Transfusion needle pipe needle point is angle pin, are connecting transfusion for remaining needleTime its drawback be: it is when puncturing puncture type connector, and puncture orifice is a line, and needle tubing enters after strutting, and its opening is positioned atPinpoint inclined plane, so punctures and easily the various materials punctured on line is included microorganism, various microgranule and various organic or inorganicThing is brought in transfusion device system, in fact it could happen that nosocomial infection and other harm.
Summary of the invention
The purpose of this utility model be to provide a kind of simple and reasonable, technique the most easily manufactures, have the hand-held handle of column,There is fixing and supporting part, use side opening hour hand, the sheath with spreading performance of the anti-pricking wound of substantial length of operation, can wear with punctureThorn formula connector puncture end face different parts connect, can be connected with the puncture type connector on Y type remaining needle, institute can be reducedInterior infection and other materials enter the puncture type connector dedicated transfusion pin of the harm in human vas, do not have solving existing clinicThe problem having dedicated transfusion pin.
In order to solve these problems of the prior art, the technical scheme that this utility model provides is: include needle tubing, pinThe transfusion catheter that seat and needle stand rear end connect, it is characterised in that: needle tubing and the sheath that can accommodate puncture type connector are fixed onOn needle stand.
" fixing " in above-mentioned " sheath is fixed on needle stand " refers in routine operation, and sheath can not come off or the most slidingDynamic.
Under more excellent enforcement state, the prosopyle of described sheath can expand or/and at least partly sidewall can be outward-dipping.
Under more excellent enforcement state, an at least opening on described sheath sidewall.
Above-mentioned " opening " is that one section of continuous print is from top to bottom and/or by left-to-right gap or breach.
Under more excellent enforcement state, described needle tubing length is less than the 3/4 of puncture type connector length.
Under more excellent enforcement state, described sheath by soft or/and resilient material manufacture.
Under more excellent enforcement state, described sheath is in a tubular form or/and needle stand is cylindrical.
Under more excellent enforcement state, described sheath end is provided with diapire and hole.
Under more excellent enforcement state, after described puncture type connector is longitudinally inserted into sheath inside, wear when limiting without needle tubingThe shifted laterally distance of 0.3～4 millimeter is had between thorn formula connector and sheath.
Under more excellent enforcement state, described sheath end be directly socketed with needle stand or by glue bonding welding or screw threadOr buckle is fixing connects or integrally manufactured.
Above-mentioned " sheath end and needle stand are directly socketed " refers to sheath end and needle stand front end or the socket of whole needle stand, isSheath natural resiliency or stretch performance and frictional force is utilized to reach fixing purpose.
Under more excellent enforcement state, described needle tubing is provided with cone tip, and infusion hole is positioned at cone tip trailing edge rearNeedle tubing sidewall on.
Herein orientation be infuse needle point point to direction be front, after rightabout is.
Compared to solution of the prior art, the utility model has the advantages that:
1. after the transfusion needle of this patent docks with puncture type connector, protected or fixing device, the unsettled connection of energy, can be solidOn the limbs of people.
2., after the transfusion needle of this patent docks with puncture type connector, support that both lowest parts can be at same plane,Use adhesive tape can fix firm to needle stand and puncture type connector, it is to avoid transfusion needle root stress.
3. reduce adhesive tape to use, reduce the probability of allergy.
4. operation is entirely capable of avoiding accidental needle sticks to hinder completely.
5. the transfusion needle energy multiple location of this patent punctures and uses.
6. the transfusion needle needle tubing of this patent uses hour hand side opening, is difficult to bent needle and is difficult to needle point in connection procedure and encountersMake needle point barb on the sidewall of infusion set, and occur damaging puncture type connector sealing member, avoid exfoliation to produce the most exactly.
7. safety transfusion needle can be connected with the puncture type connector on Y type remaining needle.
8. reduce nosocomial infection and other materials enter the harm in human vas.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:
Accompanying drawing 1 is the structural representation of this utility model embodiment；
Accompanying drawing 2 is the structural representation of the another embodiment of this utility model；
Accompanying drawing 3 is the structural representation after the sheath in another embodiment is socketed with needle stand；
Accompanying drawing 4 is the state before the sheath stress in another embodiment；
Accompanying drawing 5 is the state after the sheath stress in another embodiment；
Numeral mark described in figure is expressed as: 1, sheath；2, needle tubing；3, needle stand；4, transfusion catheter；5, opening；6, protectThe prosopyle of set.
Detailed description of the invention
Embodiment one: see shown in accompanying drawing 1:
A kind of anti-acupuncture puncture type connector dedicated transfusion pin, connects including needle tubing 2, needle stand 3 and needle stand 3 rear endTransfusion catheter 4, needle tubing 2 and the sheath 1 that can accommodate puncture type connector are fixed on needle stand 3.
In production, the sheath 1 that preparation length is suitable for, needle stand 3 is bonding with needle tubing 2, after needle tubing 2 silication is good, by direct for sheath 1It is socketed or is bonded in needle stand 3 front end, making whole needle tubing 2 be placed in sheath 1, play anti-needling action.In using, puncture type connectsPart punctures end face and enters into bottom sheath 1 by the prosopyle 6 of sheath, uses adhesive tape or utilizes sheath 1 natural resiliency and frictionPuncture type connector is fixed in the effect of power.Owing to needle tubing 2 is completely in sheath 1 inside, after transfusion needle accident stress, needle tubing 2 is alsoWill not be stressed directly, even if fixation adhesive tape comes off, needle tubing 2 also will not fracture.And use in overall process all without acupuncture occursUnexpected.
Embodiment two: see shown in accompanying drawing 1:
A kind of anti-acupuncture puncture type connector dedicated transfusion pin, connects including needle tubing 2, needle stand 3 and needle stand 3 rear endTransfusion catheter 4, needle tubing 2 and the sheath 1 that can accommodate puncture type connector are fixed on needle stand 3.Puncture type connector is longitudinally inserted intoBehind sheath 1 inside, when limiting without needle tubing 2, the maximum lateral shifting having 0.5-2.5 millimeter between puncture type connector and sheath 1Dynamic distance.
Using the convenient operation of middle medical personnel, simultaneously because puncture type connector is positioned at tubular sheath 1, puncture type connectsMaximum between part and sheath 1 have the shifted laterally distance of 0.5-2.5 millimeter to avoid needle tubing 2 repeated localised puncture puncture type connector to infuseEnd face central point and cause leakage.
Embodiment three: see shown in accompanying drawing 2,3:
The transfusion catheter 4 connected including needle tubing 2, needle stand 3 and needle stand 3 rear end, needle tubing 2 is connected with accommodating puncture typeThe sheath 1 of part is fixed on needle stand 3.This example sheath 1 uses soft material, but he has certain deformability and elasticity, normallyIn using will not bending, protection draw point and anti-needling action can be played.Its deformability is utilized to add at least one longitudinal direction againOpening 5 makes it ensure to accommodate, and deviation needle tubing 2 axis is a range of or the puncture type connector of various different sizeAnd the puncture type connector on Y type remaining needle.
In production, sheath 1 can use extrusion mechanism standby, and opening 5 uses cutter die-cut.
Embodiment four: see shown in accompanying drawing 2,3,4,5:
A kind of anti-acupuncture puncture type connector dedicated transfusion pin, includes the hour hand pipe 2 of cone tip, needle stand 3, Yi JizhenThe transfusion catheter 4 that seat 3 rear end connects, tubular sheath 1 end is directly socketed on the needle stand 3 of cylindricality.Have on tubular sheath 1 sidewallArticle 2, longitudinal opening 5 or other shapes such as zigzag incision, to increase its spreading performance.Sheath 1 is passed through by macromolecule raw materialExtruder manufacture, on sidewall die-cut or cut off sidewall formed opening 5, end is enclosed within whole cylindricality needle stand 3, utilizes sheath 1Natural resiliency and frictional force fix, in use sheath 1 do not have vertical shift.
Use middle medical personnel that the column needle stand 3 of hand-held covering sheath 1 can be facilitated to hold pin operation, utilize the prosopyle of sheath6 can open big performance, the puncture type connector of various different size can be facilitated to puncture end face and insert, see Fig. 4, Fig. 5.Simultaneously byBeing positioned at tubular sheath 1 in puncture type connector, after transfusion needle accident stress, needle tubing 2 also will not be stressed directly, though fixing glueBand comes off, and puncture type connector completely falls off, and needle tubing 2 also will not fracture.And use and overall process does not haves acupuncture surprisingly.Both can also unsettled connect, and need not be fastened on patient skin, it is to avoid may go out allergic phenomena also and occur.?After transfusion terminates, pulling up transfusion needle, sheath 1 is owing to self there being certain elasticity, even if being that excessive open configuration is using when usingCertain anti-needling action closed up without affecting sheath 1 can be also had after end.The needle tubing 2 of cone tip punctures to be wornIt is a point that thorn formula connector transfusion end face connects, and can effectively reduce nosocomial infection and the risk of various material entrance human body.
This example is 2 symmetrical longitudinal openings, and opening can use equipment die-cut or injection preparation.Can certainly beArticle 1, or more than 2 symmetrical or asymmetric openings, this not affect protection needle tubing 1 and the premise of anti-acupuncture certainlyLower realization.If sidewall stress can be in horn-like when sleeving puncturing formula connector the sheath of 2 or above longitudinal openingOpen, see Fig. 5.
Examples detailed above only for technology of the present utility model design and feature are described, its object is to allow and is familiar with techniquePeople will appreciate that content of the present utility model and implements according to this, can not limit protection domain of the present utility model with this.AllThe equivalent transformation done according to this utility model spirit or modification, all should contain within protection domain of the present utility model.