A kind of medical science venous blood collection needle holderTechnical field
The present invention relates to technical field of medical instruments, specially a kind of medical science venous blood collection needle holder.
Background technology
Clinically, largely should using two-head blood-taking needle and vacuum blood collection tube as the acquisition mode of blood of human body sampleWith, same case can repeatedly be taken a blood sample using double blood taking needles and vacuum blood collection tube, but for for fixing double end blood samplingFor the needle holder of pin, it is impossible to after blood sampling, the exposed needle point outside needle holder is isolated or protected, therefore,The blood taking needle of exposure is more dangerous after blood sampling, easily stabs staff, also, in two-head blood-taking needle waste gas treatment processIn, program is effectively protected due to lacking to two-head blood-taking needle, the situation for needle pricks also easily occur, while adopted by vacuumWhen blood vessel or two-head blood-taking needle are taken a blood sample, the situation first peeled off needle point and first peel off heparin tube is needed under different flows,And existing needle holder always first requires that medical personnel's both hands are peeled off, the efficiency of blood sampling is not only influenceed, and easily causes bundleThe situation of wound.
The content of the invention
In order to overcome the shortcomings of prior art, the present invention provides a kind of medical science venous blood collection needle holder, changes solidFixed occupation mode, service efficiency is improved, simplify blood collection procedure, avoid injury of the pillow to medical personnel.
The technical solution adopted for the present invention to solve the technical problems is：A kind of medical science venous blood collection needle holder, includingLower shell and upper shell, the upper shell insertion lower shell top movable link together, and the lower shell bottom is provided with bottomDisk, the upper shell outer ring are provided with some grooves, and the upper shell is provided with outer button circle, the outer button circle surface by grooveIt is provided with several and refers to circle, the upper shell inwall is provided with interior trim ring, and the interior trim ring center top is provided with purl circle, instituteState interior trim ring bottom and be provided with interior foundation ring, non-return ring is provided among the interior trim ring, the non-return ring bottom sets flexiblePiece, the purl circle are connected with middle connecting leg through non-return ring and flexure strip, and the lower shell inner top wall is provided with fixed mount, instituteState and riffled tube is provided among fixed mount, be provided with sheet rubber at the top of the riffled tube, set on the lower shell outer wallThere is acupressure probe.
As a kind of technical scheme for having choosing of the present invention, the outer button circle inner ring is provided with the bayonet lock with recess set,And the bayonet lock internal face is in arcs of recesses, and the neck that structure matches is protruded with the outer wall of needle tubing.
It is described as a kind of technical scheme for having choosing of the present invention, the tangent line folder of the junction of the acupressure probe and lower shellAngle is 60 °.
It is in funnel-form at the top of the middle connecting leg, the middle connecting leg bottom is worn as a kind of technical scheme for having choosing of the present inventionInterior bottom and sheet rubber are crossed, and the middle connecting leg bottom maintains an equal level with fixed mount bottom just.
As a kind of technical scheme for having choosing of the present invention, the finger pressure plate surface is provided with non-slip texture.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention is realized by the two-part cylinder of flexible connectionNeedle holder in use, fixed above, and connected by rotating spiral by singlehanded Selective Separation, the bayonet lock of outer button circle by needle tubingConnect purl device so that connection and fixation are more firm, and when carrying out the installation of vacuum blood collection tube, the inner helix pipe on fixed mount willThe fixation of heparin tube only, sheet rubber place the excessive spiral of heparin tube, and connecting leg causes middle connecting leg extruding purl circle in extruding, causesVacuum blood collection tube failure, improving the occupation mode of needle holder and changing needs both hands to carry out needle holder and adopt in useThe separation of blood pin, simplify blood collection procedure, while blood taking needle and touching are polluted during the bimanualness of surface, and avoid what is pricked by pinDanger, one hand can complete the Selective Separation of needle tubing and blood collecting bottle, and outer button circle and finger circle provide the lay down location and hand of fingerRefer to the application point of power and the power of cylinder, and the acupressure probe set by certain angle, there is provided control of the finger to lower shell, so as toThe effective service efficiency for improving blood taking needle holder.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the overlooking the structure diagram of the present invention.
In figure：1- lower shells；2- upper shells；The outer button circles of 3-；4- chassis；5- acupressure probes；6- grooves；7- purl circles；In 8-Trim ring；9- non-return rings；10- flexure strips；Connecting leg in 11-；Foundation ring is enclosed in 12-；13- fixed mounts；14- riffled tubes；15- rubberPiece；16- refers to circle；17- bayonet locks.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, completeSite preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based onEmbodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not madeEmbodiment, belong to the scope of protection of the invention.
The explanation of following embodiment is refer to the attached drawing, can be to the specific embodiment implemented to the example present invention.The direction and position term that the present invention is previously mentioned, for example, " on ", " in ", " under ", "front", "rear", "left", "right", " interior ", "Outside ", " side " etc., only it is direction and position with reference to annexed drawings.Therefore, the direction and position term used is to illustrateAnd understand the present invention, and it is not used to the limitation present invention.
Embodiment：
As shown in figure 1, the invention provides a kind of medical science venous blood collection needle holder, including lower shell 1 and upper shell 2, it is describedUpper shell 2 is embedded in the top movable of lower shell 1 and linked together, and the bottom of lower shell 1 is provided with chassis 4, outside the upper shell 2Circle is provided with some grooves 6, and the upper shell 2 is provided with outer button circle 3 by groove 6, and the outer surface of button circle 3 is provided with someIndividual to refer to circle 16, the inwall of upper shell 2 is provided with interior trim ring 8, and the interior center top of trim ring 8 is provided with purl circle 7, described interiorThe bottom of trim ring 8 is provided with interior foundation ring 12, and non-return ring 9 is provided among the interior trim ring 8, and the bottom of non-return ring 9 is provided with bulletProperty piece 10, the purl circle 7 is connected with middle connecting leg 11 through non-return ring 9 and flexure strip 10, and the inner top wall of lower shell 1 is setThere is fixed mount 13, riffled tube 14 is provided among the fixed mount 13, the top of riffled tube 14 is provided with sheet rubber 15,Acupressure probe 5 is provided with the outer wall of lower shell 1；
Preferably, the outer inner ring of button circle 3 is provided with the bayonet lock 17 to match with groove 6, and the internal face of the bayonet lock 17 is inArcs of recesses, and protrude the neck that structure matches with the outer wall of needle tubing；It is described, the junction of the acupressure probe 5 and lower shell 1Tangent line angle is 60 °；The top of middle connecting leg 11 is in funnel-form, and the middle bottom of connecting leg 11 passes through interior bottom 12 and sheet rubber 15,And the bottom of middle connecting leg 11 maintains an equal level with the bottom of fixed mount 13 just；The surface of acupressure probe 5 is provided with non-slip texture.
In summary, the main characteristic of the invention lies in that：The present invention realizes by the two-part cylinder of flexible connection and holds pinDevice in use, singlehanded Selective Separation, improve the occupation mode of needle holder and changing need in use it is doubleHand carries out the separation of needle holder and blood taking needle, simplifies blood collection procedure, while blood taking needle and touching are polluted during the bimanualness of surface,And the danger pricked by pin is avoided, one hand can complete the Selective Separation of needle tubing and blood collecting bottle, and outer button circle and finger circle provideThe application point of the lay down location and finger strength of finger and the power of cylinder, and the acupressure probe set by certain angle, there is provided finger pairThe control of lower shell, so as to effectively improve the service efficiency of blood taking needle holder.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er QieIn the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matterFrom the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended powerProfit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by fallingChange is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.