CN202776325U - Syringe type vacuum blood collector with protected needle tip - Google Patents
Syringe type vacuum blood collector with protected needle tip Download PDFInfo
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- CN202776325U CN202776325U CN 201220381528 CN201220381528U CN202776325U CN 202776325 U CN202776325 U CN 202776325U CN 201220381528 CN201220381528 CN 201220381528 CN 201220381528 U CN201220381528 U CN 201220381528U CN 202776325 U CN202776325 U CN 202776325U
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Abstract
The utility model relates to a vacuum blood collecting instrument used outside human bodies for clinical care, in particular to a syringe type vacuum blood collector with a protected needle tip. The syringe type vacuum blood collector with the protected needle tip is characterized in that a syringe is rigidly connected with a vascular access needle tubing, a blood taking needle tubing and a blood sample collecting pipe, the vascular access needle tubing, the blood taking needle tubing and the blood sample collecting pipe can not only be integrated into a whole but also can be combined to form a traditional needle tubing structure. The syringe type vacuum blood collector with the telescopic protective sleeve has the advantages that the structure is simplified, the control operating is convenient, and the operating process of the vacuum blood collector with the indwelling catheter is very similar to a traditional needle tubing operation. The amount of work and psychological burden of medical workers are reduced in maximum. Even when the medical workers meet with unconscious, restless, uncooperative patients and infant patients and the limbs motion range of the medical workers is large, misoperation is not prone to happen, and therefore safety and success degree of operation can be improved. A safe type structure is further involved, thereby guaranteeing that the vascular access needle tubing which is drawn back can not be pushed out again to hurt people, and guaranteeing a single use of the syringe type vacuum blood collector of the syringe type vacuum blood collector with the protected needle tip.
Description
Technical field
The present invention relates to the outer vacuum blood collection apparatus of a kind of human body, particularly a kind of syringe-type vacuum blood collector with needle point protection in the clinical treatment.
Background technology
A kind of vacuum test tube device of the prior art comprises blood taking needle and blood sample collecting pipe 2 as shown in Figure 1 and Figure 2, and blood taking needle one end is vascular puncture needle tubing 11, and the other end is with gum cover blood-collecting needle tube 12, and is middle by the connection of PVC conduit.This device is pulled out first protective sleeve on the needle tubing of two when blood sampling, vascular puncture needle tubing 11 is thrust in the sufferer arm vein, waits blood to enter in the blood sampling conduit, and the medical worker pushes down the needle handle of this vascular puncture needle tubing 11 immediately with little finger, in case the puncture needle tubing comes off; Because blood sample collecting pipe 2 seal rubber plugs are very thick, blood-collecting needle tube 12 pinpoint inclined plane angles are large, and needle point is blunt, add that blood-collecting needle tube 12 sealed rubber pipes elastic force when being subject to compressing axially is very large, so need both hands blood-collecting needle tube 12 could be thrust in the blood sample collecting pipe, operation is inconvenience quite.Because be negative pressure in the blood sample collecting pipe 2, blood flows into the speed in this collecting pipe.To be collected to required sample amount, if need to gather the multitube blood sample, must bimanualness blood-collecting needle tube 12 could be extracted from collecting pipe 2.This moment, blood-collecting needle tube 12 outer soft rubber sleeves restored, and encased blood-collecting needle tube, prevented that blood flows out contaminated environment in the conduit, and then the operation of the intubate before repeating; If do not need to draw blood again, must extract first puncture needle tubing 11 on the human body, put again needle tip shield, pull out again blood-collecting needle tube 12 on the collecting pipe 2.This shows this vacuum blood sampler because blood taking needle and 2 minutes body structures of collecting pipe, blood collection procedure need be cared for two needle tubing of conduit simultaneously, cause complicated operation loaded down with trivial details, a plurality of operating procedures even need both hands and also need impose certain and just right power just to finish extracting and inserting of needle tubing, and just can't care for the needle tubing of other end this moment, involves so again the co-operating that needs more than one medical personnel.The existence of the operating procedure that this complexity is loaded down with trivial details and two needle tubing, medical personnel's workload and psychological burden have virtually been increased, under the sight that the limb activity amplitude is large suffering from unconsciousness, restless, disoperative patient and infant patient, produce easily maloperation.And after the puncture end, exposed puncture needle bobbin point does not have security protection to sting easily the people, the generation potential safety hazard.
Summary of the invention
The object of the invention is to overcome weak point of the prior art, and provide a kind of designs simplification, simple to operate easily, the puncture needle pipe after puncture finished has the syringe-type vacuum blood collector with needle point protection of security protection.
The objective of the invention is to realize by following approach.
Syringe-type vacuum blood collector with needle point protection; comprise the vascular puncture needle tubing; blood-collecting needle tube and blood sample collecting pipe; it forms main points and is; also include a kind of syringe; the tail end of vascular puncture needle tubing is plugged on the Paracentesis needle holder with the mode off-centre near the syringe outer peripheral face; the needle point of this needle tubing and the major part of needle tubing are all exposed outside syringe; syringe inside has an annular seal space and a cylindrical cavity; before wherein annular seal space is positioned at cylindrical cavity; the tube core of vascular puncture needle tubing is communicated with the sealing chamber; the front end of blood-collecting needle tube is installed with on the wall of sealing chamber; rear end and needle tubing major part extend back and are plugged in the pipe close of blood sample collecting pipe; the tube core of blood-collecting needle tube is communicated with the sealing chamber; cylindrical cavity is positioned at rear and its rear end of annular seal space and opens; blood sample collecting pipe pipe close is nested with in this cylindrical cavity in removable mode front; blood sample collecting pipe pipe close aft bulkhead has a sealant that can be pierced through by the blood-collecting needle tube rear end; the cylindrical cavity of blood sample collecting pipe front end face has for piercing through the front accommodating space of blood sample collecting pipe that pushes away of this sealant; vascular puncture needle tubing tube core; annular seal space; the blood-collecting needle tube tube core and be pierced sealant after blood sample collecting pipe tube chamber form a kind of blood channel; Paracentesis needle holder is arranged in the syringe inner chamber of syringe front bulkhead inboard; the Paracentesis needle holder inner chamber is annular seal space; extend axially a kind of tail end on the barrel sidewall and be provided with the sliding tray that retreats obstacle; Paracentesis needle holder pushes away that handle is prominent to be passed this sliding tray and be exposed at outside the syringe; the axial length of syringe inner chamber is greater than the length of exposing the puncture needle tubing outside syringe; the puncture needle tubing; Paracentesis needle holder; blood-collecting needle tube and even collecting pipe form the slide unit that a kind of relatively syringe retreats slip, along with retreating of the slide unit needle tubing that punctures retracts in the syringe inner chamber.
Like this, with syringe rigid attachment vascular puncture needle tubing, blood-collecting needle tube and blood sample collecting pipe, make not only Construction integration but also form a kind of traditional needle cylinder structure, designs simplification of three, control easy to operately, and operating process is extremely similar to the operation of conventional syringes.
During blood sampling, controlling syringe thrusts the vascular puncture needle tubing in the sufferer arm vein, when seeing blood back, one hand-held firmly syringe, another hands or same on the other hand another finger sinciput blood sample collecting pipe, make the blood-collecting needle tube rear end pierce through the sealant of blood sample collecting pipe pipe close, because the negative pressure of blood sample collecting pipe tube chamber, blood flows into the speed in this collecting pipe.To be collected to required sample amount, if need to gather the multitube blood sample, only need one hand that collecting pipe is extracted from cylindrical cavity, the outer blood sampling sealing shroud of being made by soft rubber sleeve of blood-collecting needle tube this moment restores, encase blood-collecting needle tube, prevent that blood flows out contaminated environment in the conduit, and then take out new blood sample collecting pipe; If do not need to draw blood again, only need extract first the needle tubing that punctures on the human body, put needle tip shield, get again except collecting pipe and get final product.
When blood sampling finishes, can be along this sliding tray pusher Paracentesis needle holder and puncture needle tubing, in the syringe, this moment, syringe was again as protective sleeve until the puncture needle tubing submerges fully.The sliding tray tail end retreats obstacle and can stop the Paracentesis needle holder of recession and puncture needle tubing to pass syringe.This obstacle that retreats can be a kind of prominent protruding stuck point at the sliding tray tail end, also can be the sealing of sliding tray tail end.
Purpose of the present invention can also realize by following approach.
The present invention about the further optimization of syringe protective sleeve is:
Also include a kind of non-return device, this non-return device is installed between slide unit and the syringe, is retracted into slide unit in the syringe inner chamber to the puncture needle tubing and pushes away before reverse non-return device is therewith stoped contact if retreat.
Like this, because of the prevention of non-return device, retreat the slide unit that puts in place can not before push away.Thereby both having guaranteed that the puncture needle tubing that retreats can not passed out again hurts sb.'s feelings, and also can impel the disposable use of this syringe-type vacuum blood collector of the present invention.
Common in this non-return device aciculiform medical apparatus and instruments in the prior art, mostly can use in the present invention.The present invention provides the non-return device of two kinds of optimizations at this:
This non-return device is the symmetrical closed tongue piece of a kind of elasticity, is installed in the syringe inner chamber in Paracentesis needle holder the place ahead, and puncture needle tubing tail end wore the closed joint portion of this closed tongue piece and was fixed on the Paracentesis needle holder.
Like this, after the puncture needle tubing was removed, the tongue piece elastic reset was blocked former puncture needle tubing outlet.
This non-return device is comprised of Elastic buckle and pit, and Elastic buckle is positioned on the syringe, and pit is positioned on the slide unit, retreats the proper and Elastic buckle clamping of its pit of slide unit that puts in place, thereby pushes away before stoping the puncture needle tubing.
This Elastic buckle is comprised of the buckle on elastic suspended tongue and outstanding tongue top, close syringe sliding tray tail end is emptied along the interval parallel with sliding tray and is allowed this empty at sliding tray tail end and sliding tray " U " shape and even wears, these " U " shape central authorities namely form an elastic suspended tongue, buckle is arranged in this elastic suspended tongue top and prominent protruding in sliding tray, and pit is positioned at pushing away on the handle of Paracentesis needle holder.
Retreat the Paracentesis needle holder that puts in place along sliding tray and push away handle, the just therewith buckle clamping of its pit.
The present invention about the further optimization of syringe-type vacuum blood collection structure is:
Arrange that near the syringe outer peripheral face vascular puncture needle tubing that also extends forward is parallel with the center of syringe.
The annular seal space of syringe front portion is a kind of blood back cavity, has the perspective section of observable blood back on the suitable position in syringe outer peripheral face and sealing chamber.
The syringe leading section is the wedge shape of stretching under a kind of upper contracting, and the vascular puncture needle tubing is affixed at lower extending end head and the syringe of this wedge shape, and the perspective section of observable blood back is positioned on the inclined-plane of this wedge shape.
The upper contracting end on this wedge shape inclined-plane intersects with the outer peripheral face of syringe, and the lower extending end on this wedge shape inclined-plane forms a kind of small boss A in the position near the syringe outer peripheral face, and vascular puncture needle tubing tail end is affixed by this boss A and syringe.
Like this, this wedge shape inclined-plane faces the operator who bends to operate, and is convenient to observe.
This perspective section can use transparent material to make.
Have a small boss B on the annular seal space bonnet, the blood-collecting needle tube front end is fixed on this boss B.
Blood-collecting needle tube and syringe arranged concentric, and extend along the syringe center back.
Blood-collecting needle tube is coated with the blood sampling sealing shroud, and blood sample collecting pipe pipe close center is provided with the core hole that extends axially to sealant, and this core hole internal diameter is slightly larger than blood sampling sealing shroud external diameter.
Like this, when penetrating pipe close along this core hole, the blood sampling sealing shroud is subject to axial compression compression radial distorted dilatating and deformable to the blood taking needle pipe racks with the blood sampling sealed tube, core hole inner hole wall extrusion friction therewith just in time, and the more unlikely blood-collecting needle tube that allows is deviate from blood sample collecting pipe pipe close.
Blood sample collecting pipe pipe close sealant thickness is 3-0.5MM, preferably 1.5-0.5MM.
Blood-collecting needle tube can easily be worn out sealant like this.
Have the structure suitable with blood sample collecting pipe pipe close in the cylindrical cavity, this structure not only makes things convenient for packing into and taking out of blood sample collecting pipe, simultaneously again with the blood sample collecting pipe pipe close annexation of formation than consolidation that be connected.
The further optimization of this structure can be like this: the blood sample collecting pipe is plugged in the cylindrical cavity, and suitable structure is the structure that interference fits connects on a kind of size.
Can also be like this: the cylindrical cavity inwall be along circumferentially being symmetrically arranged with the structure that touches with the adaptive place of blood sample collecting pipe pipe close elastic card, when the two is in the tactile state of card, before the blood-collecting needle tube rear end just is in sealant to be pierced through.
So both conveniently be inserted in blood sample collecting pipe in the cylindrical cavity and can not come off out when upright, provided again the insertion degree of the blood sample collecting pipe that is installed in the cylindrical cavity from sense of touch, thus convenient the installation.
It can be a kind of short arc convex clamping point that this elastic card touches structure, and perhaps this short arc convex clamping point or blood sample collecting pipe pipe close are made by elastomeric material.
This elastic card touches the urgent connection status of elasticity that structure can cause cylindrical cavity inwall and pipe close, but when applying axial force, the blood sample collecting pipe still relatively cylindrical cavity do freely before push away or retreat.
This short arc convex clamping point is as the term suggests be exactly a kind of prominent protruding salient point on the cylindrical cavity inwall, and thickness hangs down shallow and the front and back side all has arc-shaped transition, so that creeping of pipe close passed through.
Can also touch the adaptive connection structure that increases separately other on the basis of constructing at this elastic card and be used to reach better result of use, below be being used of wherein a kind of optimization:
The structure that cylindrical cavity is interior and pipe close is suitable is a kind of a plurality of structure that inwalls circumferentially distribute or symmetrical elastic card touches along cylindrical cavity, another kind of suitable structure is to be produced on the L shaped groove on the pipe close outer peripheral face and to be produced on prominent salient point on the cylindrical cavity inwall, should vertically enter L shaped groove and can slide therein in the termination of section from the L shaped groove that is positioned at the pipe close front end face by prominent salient point, when cylindrical cavity inwall and pipe close elastic card touch, should prominent salient point have entered in vertical section in the L shaped groove but not yet arrived this vertically bottom of section, before this moment, the blood-collecting needle tube rear end just was in sealant to be pierced through, when sinciput blood sample collecting pipe to blood-collecting needle tube puncture through seal layer, should just arrive this vertically bottom of section by prominent salient point, rotate the blood sample collecting pipe this moment, and this prominent salient point enters the cross break section in the L shaped groove.
Like this, the cross break section in the L shaped groove can locked blood sample collecting pipe degree of freedom in the axial direction, make its relative syringe can not before push away and can not retreat.
Can be again like this: the blood sample collecting pipe be threaded in the cylindrical cavity, and suitable structure is a kind of structure that is threaded.
Blood sample collecting pipe pipe close is comprised of seal rubber plug and over cap, and fluid sealant plug sleeve plug is in the collecting pipe tube chamber, and the over cap capping plug is on the collecting pipe mouth of pipe and seal rubber plug.
With the suitable structure operated by rotary motion of cylindrical cavity on over cap.
The length of cylindrical cavity is less than the length of blood sample collecting pipe, and the afterbody that is nested with the blood sample collecting pipe in cylindrical cavity exposes outside cylindrical cavity.
Be provided with a kind of tactile platform on close that side outer peripheral face of syringe of vascular puncture needle tubing, this tactile platform bottom surface is a kind of planar shaped or is the suitable arcs of recesses of a kind of and human body ancon.
This tactile platform make things convenient for syringe and human body by touching, increase the frictional force of syringe and human skin, make syringe be difficult for slippage.
Be provided with a kind of soft deposited wing on close that side outer peripheral face of syringe of vascular puncture needle tubing, this soft deposited wing and syringe are affixed, and both sides have the span, apply wing bottom surface and are a kind of planar shaped or are the suitable arcs of recesses of a kind of and human body ancon.
This deposited wing make things convenient for syringe and human body by touching, increase the frictional force of syringe and human skin, make syringe be difficult for slippage.
Can also further in the deposited wing bottom surface viscous adhesive point be set.
In sum, the present invention has following advantage compared to existing technology: designs simplification, control easy to operate, and operating process is extremely similar to the operation of conventional syringes, medical personnel's workload and psychological burden have been reduced to greatest extent, even under the sight that the limb activity amplitude is large suffering from unconsciousness, restless, disoperative patient and infant patient, also be not easy to produce maloperation, thereby safety and the Degree of Success of operation have been improved.And the further intervention of safe shape structure, thereby both guaranteed that the puncture needle tubing that retreats submerges in the protective sleeve and can scathing, also can impel the disposable use of this syringe-type vacuum blood collector of the present invention.
Description of drawings
Fig. 1 is that a kind of vacuum test tube device blood sample collecting pipe inserts view in the prior art.
Fig. 2 is that a kind of vacuum test tube device blood sample collecting pipe is withdrawn from view in the prior art.
Fig. 3 is the schematic appearance that the present invention has the syringe-type vacuum blood collector of needle point protection.
Fig. 4 is the structural representation sectional plan view that the present invention has the syringe-type vacuum blood collector of needle point protection.
Fig. 5 is the structural representation cutaway top view that the present invention has the syringe-type vacuum blood collector of needle point protection.
Fig. 6 is the sketch map that the present invention has the rear state of syringe-type vacuum blood collector blood sampling of needle point protection.
Fig. 7 is that the present invention has the drive end bearing bracket structural representation sectional plan view in the syringe-type vacuum blood collector of needle point protection.
Fig. 8 is that left view is analysed and observe in the drive end bearing bracket structural representation that the present invention has in the syringe-type vacuum blood collector of needle point protection.
Below in conjunction with accompanying drawing this utility model is carried out more detailed description.
Label declaration:
11 puncture needle tubings, 12 blood-collecting needle tubes, 13 Paracentesis needle holders, 131 boss B 132 push away handle 15 blood sampling sealing shrouds 2 blood sample collecting pipes 21 sealants 22 seal rubber plugs 23 over caps 3 syringes 31 boss A 32 annular seal spaces 33 cylindrical cavity 34 short arc convex clamping points 35 operation window 36 sliding trays
4 apply the wing 5 closed tongue piece 6 drive end bearing brackets.
The specific embodiment
Most preferred embodiment:
With reference to Fig. 3; Fig. 4; Fig. 5; syringe-type vacuum blood collector with needle point protection; comprise vascular puncture needle tubing 11; blood-collecting needle tube 12; blood sample collecting pipe 2 and syringe 3; syringe 3 is hollow barrel-type housings; made by medical transparent material; the leading section of its drive end bearing bracket 6 is the wedge shape of stretching under a kind of upper contracting; the upper contracting end on this wedge shape inclined-plane intersects with the outer peripheral face of syringe; the lower extending end on this wedge shape inclined-plane forms a kind of small boss A31 in the position near syringe outer peripheral face (namely near the housing inside edge); boss A31 central authorities arrange puncture needle tubing 11 through hole are installed; puncture needle tubing 11 passes installation through hole and this installation through hole rear; the Paracentesis needle holder 13 of syringe 3 inner chamber leading sections is affixed; puncture needle tubing 11 but decentered distribution parallel with syringe 3 centers, the needle point of this needle tubing and the major part of needle tubing are all exposed outside syringe 3.Syringe 3 inside have an annular seal space 32 and a cylindrical cavity 33, and wherein annular seal space 32 is positioned at the syringe front end, and the tube core of puncture needle tubing 11 is communicated with sealing chamber 32.Paracentesis needle holder 13 relative syringes 3 are individual members, made by medical transparent material, be placed in the leading section of syringe 3 inner chambers, its inner closed cavity is annular seal space 32, the rear side of annular seal space 32 rear walls has a small boss B131, and blood-collecting needle tube 12 front ends are fixed on this boss B131, and rear end and needle tubing major part extend back and be plugged in the pipe close of blood sample collecting pipe 2, the tube core of blood-collecting needle tube 12 is communicated with sealing chamber 32, and blood-collecting needle tube 12 is coaxial with cylindrical cavity 33.Blood taking needle 12 is coated with blood sampling sealing shroud 15, and blood sample collecting pipe pipe close center is provided with the core hole that extends axially to sealant 21, and this core hole internal diameter is slightly larger than blood sampling sealing shroud 15 external diameters.Like this, when blood-collecting needle tube 12 bands penetrate pipe close with blood sampling sealing shroud 15 along this core hole, blood sampling sealing shroud 15 is subject to axial compression compression radial distorted dilatating and deformable, core hole inner hole wall extrusion friction therewith just in time, and the more unlikely blood-collecting needle tube 12 that allows is deviate from blood sample collecting pipe pipe close.Cylindrical cavity 33 is positioned at rear and its rear end of annular seal space 32 and opens, blood sample collecting pipe 2 pipe closes at front sleeve in this cylindrical cavity 33, the length of cylindrical cavity 32 is less than the length of blood sample collecting pipe 2, and the afterbody that is nested with the blood sample collecting pipe 2 in cylindrical cavity 32 exposes outside cylindrical cavity.Blood sample collecting pipe pipe close is comprised of seal rubber plug 22 and over cap 23; seal rubber plug 22 cover plugs are in the collecting pipe tube chamber; over cap 23 capping plugs are on the collecting pipe mouth of pipe and seal rubber plug; blood sample collecting pipe 2 pipe close aft bulkheads have a sealant 21 that can be pierced through by blood-collecting needle tube 12 rear ends; sealant thickness is 1.5MM; the cylindrical cavity 33 of blood sample collecting pipe 2 front end faces has for piercing through the accommodating space of the front blood sample collecting pipe that pushes away of this sealant 21 2; cylindrical cavity 33 inwalls are along circumferentially being symmetrically arranged with the structure that touches with blood sample collecting pipe 2 over caps 23 adaptive place elastic cards; when the two is in the tactile state of card, before blood-collecting needle tube 12 rear ends just are in sealant to be pierced through.It is a kind of short arc convex clamping point 34 that this elastic card touches structure, and this short arc convex clamping point 34 and over cap 23 are made by elastomeric material.Puncture needle tubing tube core, annular seal space, blood-collecting needle tube tube core and be pierced sealant after blood sample collecting pipe tube chamber form a kind of blood channel.
With reference to Fig. 3, extend axially the sliding tray 36 of a kind of tail end sealing on syringe 3 sidewalls, Paracentesis needle holder pushes away that handle 132 is prominent to be passed this sliding tray 36 and be exposed at outside the syringe 3.This sliding tray 36 extends to syringe 3 rear portions from syringe 3 front portions always, and the over cap 23 that is nested with the blood sample collecting pipe 2 in cylindrical cavity 33 is arranged in the length of interval of this sliding tray 36, and therefore, this sliding tray 36 is again operation window 35 simultaneously.The axial length of syringe 3 inner chambers is greater than the length of exposing the puncture needle tubing 11 outside syringe 3, and puncture needle tubing 11, Paracentesis needle holder 13, blood-collecting needle tube 12 and even blood sample collecting pipe 2 form the slide unit that a kind of relatively syringe 3 retreats slip.
With reference to Fig. 6, when blood sampling finishes, can be along this sliding tray pusher Paracentesis needle holder 13 and puncture needle tubing 11, until puncture needle tubing 11 submerges fully in syringe 3 inner chambers.Can extract backward blood sample collecting pipe 2 this moment, and itself and syringe 3 are broken away from.
With reference to Fig. 6, Fig. 7, Fig. 8, also include a kind of non-return device, this non-return device is the symmetrical closed tongue piece 5 of a kind of elasticity, is installed in syringe 3 inner chambers in Paracentesis needle holder 13 the place aheads, and puncture needle tubing 11 tail ends wore the closed joint portion of this closed tongue piece 5 and were fixed on the Paracentesis needle holder 13.
Like this, after the puncture needle tubing was removed, closed tongue piece 5 elastic resets were blocked former puncture needle tubing 11 outlets.Stop, retreat the slide unit that puts in place can not before push away.Thereby both having guaranteed that the puncture needle tubing 11 that retreats can not passed out again hurts sb.'s feelings, and also can impel the disposable use of this syringe-type vacuum blood collector of the present invention, can not reused by the lawless person.
With reference to Fig. 3, Fig. 4, Fig. 5, be provided with a kind of soft deposited wing 4 on close syringe 3 those side outer peripheral faces of puncture needle tubing 11, these soft deposited wing 4 both sides have the span, apply wing bottom surface and are arcs of recesses a kind of and that the human body ancon is suitable, apply the wing 4 bottom surfaces the viscous adhesive point is set.
It is same as the prior art that present embodiment is not stated part.
Claims (24)
1. the syringe-type vacuum blood collector that has the needle point protection; comprise the vascular puncture needle tubing; blood-collecting needle tube and blood sample collecting pipe; it is characterized in that; also include a kind of syringe; the tail end of vascular puncture needle tubing is plugged on the Paracentesis needle holder with the mode off-centre near the syringe outer peripheral face; the needle point of this needle tubing and the major part of needle tubing are all exposed outside syringe; syringe inside has an annular seal space and a cylindrical cavity; before wherein annular seal space is positioned at cylindrical cavity; the tube core of vascular puncture needle tubing is communicated with the sealing chamber; the front end of blood-collecting needle tube is installed with on the wall of sealing chamber; rear end and needle tubing major part extend back and are plugged in the pipe close of blood sample collecting pipe; the tube core of blood-collecting needle tube is communicated with the sealing chamber; cylindrical cavity is positioned at rear and its rear end of annular seal space and opens; blood sample collecting pipe pipe close is nested with in this cylindrical cavity in removable mode front; blood sample collecting pipe pipe close aft bulkhead has a sealant that can be pierced through by the blood-collecting needle tube rear end; the cylindrical cavity of blood sample collecting pipe front end face has for piercing through the front accommodating space of blood sample collecting pipe that pushes away of this sealant; vascular puncture needle tubing tube core; annular seal space; the blood-collecting needle tube tube core and be pierced sealant after blood sample collecting pipe tube chamber form a kind of blood channel; Paracentesis needle holder is arranged in the syringe inner chamber of syringe front bulkhead inboard; the Paracentesis needle holder inner chamber is annular seal space; extend axially a kind of tail end on the barrel sidewall and be provided with the sliding tray that retreats obstacle; Paracentesis needle holder pushes away that handle is prominent to be passed this sliding tray and be exposed at outside the syringe; the axial length of syringe inner chamber is greater than the length of exposing the puncture needle tubing outside syringe; the puncture needle tubing; Paracentesis needle holder; blood-collecting needle tube and even collecting pipe form the slide unit that a kind of relatively syringe retreats slip, along with retreating of the slide unit needle tubing that punctures retracts in the syringe inner chamber.
2. the syringe-type vacuum blood collector with needle point protection according to claim 1; it is characterized in that; also include a kind of non-return device; this non-return device is installed between slide unit and the syringe, is retracted into slide unit in the syringe inner chamber to the puncture needle tubing and pushes away before reverse non-return device is therewith stoped contact if retreat.
3. the syringe-type vacuum blood collector with needle point protection according to claim 2; it is characterized in that; this non-return device is the symmetrical closed tongue piece of a kind of elasticity; be installed in the syringe inner chamber in Paracentesis needle holder the place ahead; puncture needle tubing tail end wore the closed joint portion of this closed tongue piece and was fixed on the Paracentesis needle holder; after the puncture needle tubing was removed, the tongue piece elastic reset was blocked former puncture needle tubing outlet.
4. the syringe-type vacuum blood collector with needle point protection according to claim 2; it is characterized in that; this non-return device is comprised of Elastic buckle and pit; Elastic buckle is positioned on the syringe; pit is positioned on the slide unit; retreat the proper and Elastic buckle clamping of its pit of slide unit that puts in place, thereby push away before stoping the puncture needle tubing.
5. the syringe-type vacuum blood collector with needle point protection according to claim 4; it is characterized in that; this Elastic buckle is comprised of the buckle on elastic suspended tongue and outstanding tongue top; close syringe sliding tray tail end is emptied along the interval parallel with sliding tray and is allowed this empty at sliding tray tail end and sliding tray " U " shape and even wears; these " U " shape central authorities namely form an elastic suspended tongue; buckle is arranged in this elastic suspended tongue top and prominent protruding in sliding tray; pit is positioned at pushing away on the handle of Paracentesis needle holder; retreat the Paracentesis needle holder that puts in place along sliding tray and push away handle, the just therewith buckle clamping of its pit.
6. the syringe-type vacuum blood collector with needle point protection according to claim 1 is characterized in that, arranges that near the syringe outer peripheral face vascular puncture needle tubing that also extends forward is parallel with the center of syringe.
7. the syringe-type vacuum blood collector with needle point protection according to claim 1 is characterized in that the annular seal space of syringe front portion is a kind of blood back cavity, has the perspective section of observable blood back on the suitable position in syringe outer peripheral face and sealing chamber.
8. the syringe-type vacuum blood collector with needle point protection according to claim 1; it is characterized in that; the syringe leading section is the wedge shape of stretching under a kind of upper contracting, and the vascular puncture needle tubing is affixed at lower extending end head and the syringe of this wedge shape, and the perspective section of observable blood back is positioned on the inclined-plane of this wedge shape.
9. the syringe-type vacuum blood collector with needle point protection according to claim 8; it is characterized in that; the upper contracting end on this wedge shape inclined-plane intersects with the outer peripheral face of syringe; the lower extending end on this wedge shape inclined-plane forms a kind of small boss A in the position near the syringe outer peripheral face, and vascular puncture needle tubing tail end is affixed by this boss A and syringe.
10. the syringe-type vacuum blood collector with needle point protection according to claim 1 is characterized in that having a small boss B on the annular seal space bonnet, and the blood-collecting needle tube front end is fixed on this boss B.
11. the syringe-type vacuum blood collector with needle point protection according to claim 1 is characterized in that, blood-collecting needle tube and syringe arranged concentric, and extend along the syringe center back.
12. according to claim 1 or 11 described syringe-type vacuum blood collectors with needle point protection; it is characterized in that; blood-collecting needle tube is coated with the blood sampling sealing shroud; blood sample collecting pipe pipe close center is provided with the core hole that extends axially to sealant; this core hole internal diameter is slightly larger than blood sampling sealing shroud external diameter; when the blood taking needle pipe racks penetrated pipe close with the blood sampling sealed tube along this core hole, the blood sampling sealing shroud was subject to axial compression compression radial distorted dilatating and deformable, therewith core hole inner hole wall extrusion friction.
13. the syringe-type vacuum blood collector with needle point protection according to claim 1 is characterized in that blood sample collecting pipe pipe close sealant thickness is 3-0.5MM.
14. the syringe-type vacuum blood collector with needle point protection according to claim 13 is characterized in that blood sample collecting pipe pipe close sealant thickness is 1.5-0.5MM.
15. the syringe-type vacuum blood collector with needle point protection according to claim 1; it is characterized in that; have the structure suitable with blood sample collecting pipe pipe close in the cylindrical cavity; itself and blood sample collecting pipe pipe close are connected and form annexation than consolidation, and the blood sample collecting pipe is packed into and taken out cylindrical cavity through structure thus.
16. the syringe-type vacuum blood collector with needle point protection according to claim 15 is characterized in that the blood sample collecting pipe is plugged in the cylindrical cavity, suitable structure is the structure that interference fits connects on a kind of size.
17. the syringe-type vacuum blood collector with needle point protection according to claim 15; it is characterized in that; the cylindrical cavity inwall is along circumferentially being symmetrically arranged with the structure that touches with the adaptive place of blood sample collecting pipe pipe close elastic card; when the two is in the tactile state of card; before the blood-collecting needle tube rear end just is in sealant to be pierced through; touch structure cylindrical cavity inwall and the urgent connection status of pipe close formation elasticity through elastic card thus, but this elasticity drag is less than the axial force that manually applies.
18. the syringe-type vacuum blood collector with needle point protection according to claim 17 is characterized in that it can be a kind of short arc convex clamping point that this elastic card touches structure, perhaps this short arc convex clamping point or blood sample collecting pipe pipe close are made by elastomeric material.
19. the syringe-type vacuum blood collector with needle point protection according to claim 18; it is characterized in that; this short arc convex clamping point is a kind of prominent protruding salient point on the cylindrical cavity inwall, and the low shallow and front and back side of thickness all has is convenient to the arc-shaped transition that pipe close is creeped and passed through.
20. the syringe-type vacuum blood collector with needle point protection according to claim 15; it is characterized in that; the structure that cylindrical cavity is interior and pipe close is suitable is a kind of a plurality of structure that inwalls circumferentially distribute or symmetrical elastic card touches along cylindrical cavity; another kind of suitable structure is to be produced on the L shaped groove on the pipe close outer peripheral face and to be produced on prominent salient point on the cylindrical cavity inwall; should vertically enter L shaped groove and can slide therein in the termination of section from the L shaped groove that is positioned at the pipe close front end face by prominent salient point; when cylindrical cavity inwall and pipe close elastic card touch; should prominent salient point have entered in vertical section in the L shaped groove but not yet arrived this vertically bottom of section; before this moment, the blood-collecting needle tube rear end just was in sealant to be pierced through; when sinciput blood sample collecting pipe to blood-collecting needle tube puncture through seal layer; should just arrive this vertically bottom of section by prominent salient point; rotate the blood sample collecting pipe this moment, and this prominent salient point enters the cross break section in the L shaped groove.
21. the syringe-type vacuum blood collector with needle point protection according to claim 15 is characterized in that the blood sample collecting pipe is threaded in the cylindrical cavity, suitable structure is a kind of structure that is threaded.
22. the syringe-type vacuum blood collector with needle point protection according to claim 1; it is characterized in that; blood sample collecting pipe pipe close is comprised of seal rubber plug and over cap, and fluid sealant plug sleeve plug is in the collecting pipe tube chamber, and the over cap capping plug is on the collecting pipe mouth of pipe and seal rubber plug.
23. the syringe-type vacuum blood collector with needle point protection according to claim 1 is characterized in that the length of cylindrical cavity is less than the length of blood sample collecting pipe, the afterbody that is nested with the blood sample collecting pipe in cylindrical cavity exposes outside cylindrical cavity.
24. the syringe-type vacuum blood collector with needle point protection according to claim 1; it is characterized in that; be provided with a kind of tactile platform on close that side outer peripheral face of syringe of vascular puncture needle tubing, this tactile platform bottom surface is a kind of planar shaped or is the suitable arcs of recesses of a kind of and human body ancon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381528 CN202776325U (en) | 2012-08-02 | 2012-08-02 | Syringe type vacuum blood collector with protected needle tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381528 CN202776325U (en) | 2012-08-02 | 2012-08-02 | Syringe type vacuum blood collector with protected needle tip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202776325U true CN202776325U (en) | 2013-03-13 |
Family
ID=47803688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220381528 Expired - Lifetime CN202776325U (en) | 2012-08-02 | 2012-08-02 | Syringe type vacuum blood collector with protected needle tip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202776325U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014019201A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Syringe type vacuum blood collector |
| WO2014019198A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Syringe type vacuum blood collector with protective needle tip |
| WO2014169436A1 (en) * | 2013-04-16 | 2014-10-23 | Zhang Jianming | Needle cylinder type vacuum blood sampler with jacking needle tube |
-
2012
- 2012-08-02 CN CN 201220381528 patent/CN202776325U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014019201A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Syringe type vacuum blood collector |
| WO2014019198A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Syringe type vacuum blood collector with protective needle tip |
| CN104470432A (en) * | 2012-08-02 | 2015-03-25 | 张建铭 | Syringe type vacuum blood collector with protective needle tip |
| WO2014169436A1 (en) * | 2013-04-16 | 2014-10-23 | Zhang Jianming | Needle cylinder type vacuum blood sampler with jacking needle tube |
| CN105208935A (en) * | 2013-04-16 | 2015-12-30 | 张建铭 | Needle cylinder type vacuum blood sampler with jacking needle tube |
| CN105208935B (en) * | 2013-04-16 | 2017-09-01 | 张建铭 | The syringe-type vacuum blood collector of pushing tow heparin tube |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
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| CX01 | Expiry of patent term |