CN202776322U - Vacuum blood collector with indwelling catheter - Google Patents
Vacuum blood collector with indwelling catheter Download PDFInfo
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- CN202776322U CN202776322U CN 201220379836 CN201220379836U CN202776322U CN 202776322 U CN202776322 U CN 202776322U CN 201220379836 CN201220379836 CN 201220379836 CN 201220379836 U CN201220379836 U CN 201220379836U CN 202776322 U CN202776322 U CN 202776322U
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Abstract
The utility model relates to a vacuum blood collector used outside human bodies for clinical care, in particular to a vacuum blood collector with an indwelling catheter. The vacuum blood collector with the indwelling catheter 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 not only can be integrated into a whole but also can be combined to form a traditional needle tubing structure. The vacuum blood collector with the indwelling catheter 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. 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 puncture needle is replaced by the indwelling catheter, thereby preventing the phenomenon that a vessel is harmed by the puncture needle, and reducing the happening of phlebophlogosis and metal allergy reaction.
Description
Technical field
This utility model relates to outer vacuum blood collection apparatus, particularly a kind of vacuum blood collector with inlying catheter of a kind of human body in the clinical treatment.
Background technology
A kind of vacuum test tube device of the prior art comprises blood taking needle 1 and blood sample collecting pipe 2 as shown in Figure 1 and Figure 2, and blood taking needle 1 one ends are vascular puncture needle tubings 31, and the other end is with gum cover blood-collecting needle tube 51, and is middle by 13 connections of PVC hose connector.This device is pulled out first protective sleeve on the needle tubing of two when blood sampling, vascular puncture needle tubing 31 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 31 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 51 pinpoint inclined plane angles are large, and needle point is blunt, add that blood-collecting needle tube 51 sealed rubber pipes elastic force when being subject to compressing axially is very large, so need both hands blood-collecting needle tube 51 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 51 could be extracted from collecting pipe 2.This moment, blood-collecting needle tube 51 outer blood sampling sealing shrouds 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 31 on the human body, put again needle tip shield, pull out again blood-collecting needle tube 51 on the collecting pipe 2.This shows this vacuum blood sampler because blood taking needle 1 and 2 minutes body structures of collecting pipe, blood collection procedure need be cared for two needle tubing of hose connector 13 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 the puncture needle tubing that punctures into blood vessel very easily produces swing in piercing process and blood collection procedure, this swing directly causes puncture needle bobbin point to the damage of blood vessel, mismatching under the large sight of patient limb movable amplitude, the damage that this damage almost can't be avoided and cause is larger.
The utility model content
The purpose of this utility model is to overcome weak point of the prior art, and provide a kind of designs simplification, simple to operate easily, be difficult for the vacuum blood collector with inlying catheter of injured blood vessel.
The purpose of this utility model realizes by following approach.
Vacuum blood collector with inlying catheter, comprise angiographic neeclle, blood-collecting needle tube and blood sample collecting pipe, it forms main points and is, also include a kind of syringe, puncture needle is a kind of remaining needle, this remaining needle comprises the puncture needle tubing, conduit, Paracentesis needle holder and the plug that intercepts blood, the puncture needle pipe box is put in conduit, the needle point emergence of puncture needle tubing is outside conduit, the tail end of puncture needle tubing is fixed on the Paracentesis needle holder, puncture needle tubing and Paracentesis needle holder form a kind of slide unit that can relative syringe retreats slip, the tail end of indwelling needle catheter is plugged on the leading section of syringe with the mode off-centre near the syringe outer peripheral face, syringe inside has an annular seal space and a cylindrical cavity, wherein annular seal space is positioned at the syringe front end, the tube core of indwelling needle catheter 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, the pipe close of blood sample collecting pipe 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, indwelling needle catheter 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.
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.And puncture needle is replaced to remaining needle, this remaining needle can be general medical remaining needle structure, like this, puncture needle bobbin point only plays puncture vessel and guiding catheter intravasation, in case see blood back, the puncture needle tubing blood vessel of namely dropping back out is trapped in the blood vessel passage as blood sampling by the conduit of flexibility.
During blood sampling, controlling syringe at first thrusts the remaining needle puncturing needle tube needle point in the human vas, after seeing blood back, push away handle to the pusher Paracentesis needle holder, with in the needle point indentation conduit a little, reduce the puncture height, conduit is sent in the blood vessel, then continue recession puncture needle tubing until after the conduit, the one hand-held syringe of living, another hands or with another finger sinciput blood sample collecting pipe on the other hand makes 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 blood sampling sealing shroud that the outer soft rubber sleeve of blood-collecting needle tube this moment is made restores, encase blood-collecting needle tube, prevent that blood flows out contaminated environment in the conduit, and then insert new blood sample collecting pipe; If do not need to draw blood again, only need extract first indwelling needle catheter on the human body, pull out again collecting pipe and get final product.
The purpose of this utility model can also realize by following approach.
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 described in the utility model.
Common in this non-return device aciculiform medical apparatus and instruments in the prior art, mostly can be applied in this utility model.This utility model provides a kind of non-return device of optimization at this:
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.
This utility model can further be optimized for:
Arrange that near the syringe outer peripheral face indwelling needle catheter that also extends forward is parallel with the center of syringe cylindrical cavity.
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 tail end of conduit 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.
The annular seal space of syringe front portion is a kind of " L " shape, and cross break section front portion that should " L " shape is catheter block, and the rear portion is the plug that intercepts blood, and it is affixed that the puncture needle tubing was laterally walked the Paracentesis needle holder at this cross break section and plug rear.
Has a kind of needle tubing containing cavity on the plug rear of obstruct blood, the syringe of cylindrical cavity sidepiece, needle tubing with the Paracentesis needle holder recession is contained in this chamber, extend axially the sliding tray of a kind of tail end sealing on the sidewall of this containing cavity, Paracentesis needle holder pushes away that handle is prominent to be passed this sliding tray and be exposed at outside the syringe.
Like this, can be along push-and-pull Paracentesis needle holder before and after this sliding tray and puncture needle tubing, the sealing of sliding tray tail end can stop the Paracentesis needle holder of recession and puncture needle tubing to pass syringe.
Approach and should have a small boss B on the annular seal space rear wall at the perpendicular top that fractures of " L " shape, the blood-collecting needle tube front end is fixed on this boss B.
Blood-collecting needle tube and cylindrical cavity arranged concentric, and extend along the cylindrical cavity center back.
Have the interval between sealing chamber rear wall and the cylindrical cavity front bulkhead, extend back pass this cylindrical cavity front bulkhead blood-collecting needle tube simultaneously bearing on this cylindrical cavity front bulkhead.
Like this, blood-collecting needle tube has possessed preferably support connection rigidity.
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 sealing shroud, core hole inner hole wall extrusion friction therewith just in time, and the more unlikely blood-collecting needle tube that allows is deviate from seal rubber plug.
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.This structure not only makes things convenient for the blood sample collecting pipe to extract and insert, and being connected with blood sample collecting pipe pipe close again simultaneously forms annexation than consolidation.
The length of cylindrical cavity is less than the length of blood sample collecting pipe, and the afterbody that is plugged on the blood sample collecting pipe in the cylindrical cavity exposes outside cylindrical cavity.
Syringe with blood sample collecting pipe pipe close in be contained on the position suitable in the syringe and axially be provided with a kind of rectangular groove as operation window along syringe, this operation window has two, relatively is distributed in the both sides of syringe.
Can observe blood back by this operation window like this, observe the state of blood volume in the blood sample collecting pipe, also the insertion state of observable blood sample collecting pipe and insertion degree, also can be when extracting the blood sample collecting pipe, see through first this operation window and grip pipe close and firmly withdraw from backward the blood sample collecting pipe, thus the disengaging of collecting pipe body and pipe close when preventing from withdrawing from the blood sample collecting pipe.
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, this utility model 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 puncture needle is replaced to remaining needle, and having prevented the phenomenon of needle tip injured blood vessel, the generation of minimizing phlebitis and metal allergy are put should.
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 outward appearance schematic front view with vacuum blood collector of inlying catheter described in the utility model.
Fig. 4 is the outward appearance diagrammatic top view with vacuum blood collector of inlying catheter described in the utility model.
Fig. 5 is the structural representation cutaway view with vacuum blood collector of inlying catheter described in the utility model.
Fig. 6 is the schematic perspective view with vacuum blood collector of inlying catheter described in the utility model.
Fig. 7 is the syringe cylinder structure schematic sectional view in the vacuum blood collector with inlying catheter described in the utility model.
Fig. 8 is the syringe cylinder structure signal left view in the vacuum blood collector with inlying catheter described in the utility model.
Fig. 9 is the syringe schematic perspective view in the vacuum blood collector with inlying catheter described in the utility model.
Figure 10 is the schematic perspective view of the another kind of direction of syringe in the vacuum blood collector with inlying catheter described in the utility model.
Figure 11 is the blood sampling needle stand schematic perspective view in the vacuum blood collector with inlying catheter described in the utility model.
Figure 12 is the blood sampling needle stand cross-sectional schematic in the vacuum blood collector with inlying catheter described in the utility model.
Figure 13 is the Paracentesis needle holder schematic perspective view in the vacuum blood collector with inlying catheter described in the utility model.
Label declaration:
A lancet; 13 flexible connection pipe; 2 blood samples collection tube; 21 sealing layer; 22 core holes; 31 puncture needle; 32 needle holder; 321 wishbone; 322 push the handle; 323 pits; 41 catheter; 42 wedge pieces; 43 syringes; 431 cylindrical cavity; 432 accommodating chamber; 433 boss A; 434 connecting ring; 435 sliding groove; 436 operating windows; 437 short arc convex card points; 438 elastic suspension tongue; 439 snaps; 51 blood collection needle; 52 lancet holder; 521 bosses B; 522 bosses C; 53 blood barrier stopper; 54 connection cover; 541 connecting ring; 55 sealed chamber; 6 deposited wing
Below in conjunction with accompanying drawing this utility model is carried out more detailed description.
The specific embodiment
Most preferred embodiment:
With reference to Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, vacuum blood collector with inlying catheter intercepts plug 53, connection cover 54, the deposited wing 6 and blood sample collecting pipe 2 by trough of belt puncture needle tubing 31, Paracentesis needle holder 32, conduit 41, wedging part 42, syringe 43, blood-collecting needle tube 51, blood sampling needle stand 52, blood and forms.
With reference to Fig. 5, Fig. 6, Fig. 7, Fig. 8, conduit 41, wedging part 42 and syringe 43 form the syringe assembly.In syringe 43 conduit installing holes, the wedging part can be that medical stainless steel, medical duroplasts are made to conduit 41 by 42 wedgings of wedging part.Syringe 43 is the eccentric taper shell of a hollow and the cross section of falling calabash shape barrel-type casing complex, is made by medical transparent material.Like this, syringe 43 leading sections are 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 A433 in the position near syringe outer peripheral face (namely near the housing inside edge), and boss A433 central authorities arrange conduit through hole is installed.Protrusion connecting ring 434 is set, so that affixed blood-collecting needle tube assembly in the dead astern of syringe 43 inboards, boss A433.The syringe 43 in the cross section of falling the calabash, a kind of cylinder barrel shaped is contained in most of cross section near top, a kind of crescent (see figure 8) is then contained in fraction cross section near the bottom, this cylinder barrel shaped extends to form the cylindrical cavity 431 of the blood sample collecting pipe of can planting vertically, these cylindrical cavity 431 rear ends are open, this crescent extends to form needle tubing containing cavity 432 vertically, and the sliding tray 435 of tail end sealing is set at this crescent cavity one sidewall.Cylindrical cavity 431 two sides and blood sample collecting pipe 2 pipe closes are provided with two symmetrical operation window 436 on the suitable position.Cylindrical cavity 431 inwalls are along circumferentially being symmetrically arranged with the short arc convex clamping point 437 that touches with the adaptive place of blood sample collecting pipe pipe close elastic card, so that being inserted in the cylindrical cavity 431, blood sample collecting pipe 2 can not come off out when upright, and collecting pipe also do not pierce through the collecting pipe seal rubber plug just at this convex clamping point place blood-collecting needle tube needle point, and this short arc convex clamping point 437 and blood sample collecting pipe pipe close are by being made by elastomeric material.
Sliding tray 435 tail ends are provided with a kind of non-return device, behind the non-return device the sliding tray rear end face be planar configuration, when Paracentesis needle holder was dropped back extreme position, transverse plane blocked the needle stand front end face behind the convex clip, made needle stand can't pass sleeve forward again.
With reference to Figure 10, Figure 13, this non-return device is comprised of Elastic buckle and pit 323, this Elastic buckle is comprised of the buckle 439 on elastic suspended tongue 438 and outstanding tongue top, empty along the interval parallel with sliding tray 435 and allow this empty at the sliding tray tail end near syringe sliding tray 435 tail ends and wear with sliding tray 435 " U " shape company, these " U " shape central authorities namely form an elastic suspended tongue 438, buckle 439 is arranged in these elastic suspended tongue 438 tops and prominent protruding in sliding tray 435, and pit 323 is positioned on the transverse arm 321 of Paracentesis needle holder 32.Retreat the Paracentesis needle holder 32 that puts in place along sliding tray 435, just therewith buckle 439 clampings of the pit 323 on its transverse arm 321, thus push away before stoping puncture needle tubing 31 oppositely.
With reference to Fig. 5, Figure 11, Figure 12, the blood-collecting needle tube assembly is comprised of blood-collecting needle tube 51, blood sampling needle stand 52, blood obstruct plug 53 and connection cover 54.Connection cover 54 arranged outside connecting rings 541 wherein, connecting ring 541 inner shaftes are to transmission, and connecting ring 541 inserts affixed with syringe connecting ring 434 on the connection cover 54.Blood sampling needle stand 52, connection cover 54 is to be made by medical transparent material, blood sampling needle stand 52 is uncovered shape cavitys, the one side has cavity wall, opposite side is uncovered, connection cover 54 consists of hollow cavity in this open-mouth and blood sampling needle stand 51 by thermal welding or splicing, this hollow cavity and above-mentioned connecting ring 541, these parts of connecting ring 434(are seen accompanying drawing 7) inner shaft is annular seal space 55 to " L " shape cavity that transmission forms, wherein hollow cavity is that " L " shape is perpendicular to fracture, connecting ring 541 inner shaftes are the cross break of " L " shape to transmission and connecting ring 434 inner shaftes to transmission disconnected, blood sampling needle stand 52 1 sides have cavity wall and are annular seal space 55 rear walls, in the cavity wall outer upper blood-collecting needle tube 51 affixed boss B521 are set, there are blood-collecting needle tube 51 installing holes in boss B521 central authorities, the cavity wall outer lower portion arranges a cannular boss C522, and close fit blood intercepts plug 53 in the boss C522.This annular seal space 55 is as the blood back observation chamber.Blood-collecting needle tube 52 1 ends are fixed in blood sampling needle stand 51 installing holes, are communicated with the blood back observation chamber.Consisted of blood flow path by conduit 41, blood back observation chamber and blood-collecting needle tube 52 tube cores like this.
With reference to Fig. 5, blood-collecting needle tube 52 and cylindrical cavity 431 arranged concentric, and extend along cylindrical cavity 431 center back, but blood sample collecting pipe 2 pipe closes front with plug mode be plugged in this cylindrical cavity 431, blood sample collecting pipe 2 pipe close aft bulkheads have a sealant 21 that can be pierced through by blood-collecting needle tube 51 rear ends, sealant 21 thickness are 1.5MM, the cylindrical cavity 431 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, blood-collecting needle tube 51 is coated with the blood sampling sealing shroud, blood sample collecting pipe 2 pipe close centers are provided with the core hole 22 that extends axially to sealant 21, and these core hole 22 internal diameters are slightly larger than blood sampling sealing shroud external diameter.Like this, when blood-collecting needle tube 51 band penetrated pipe close with the blood sampling sealing shroud along this core hole 22, the blood sampling sealing shroud was subject to axial compression compression radial distorted dilatating and deformable, core hole 22 inner hole wall extrusion frictions therewith just in time, and the more unlikely blood-collecting needle tube 51 that allows is deviate from seal rubber plug.
With reference to Fig. 5, Fig. 6, Fig. 7, trough of belt puncture needle tubing 31 forms puncture needle tubing assembly with Paracentesis needle holder 32.Puncture needle tubing 31 1 ends pass successively on the blood-collecting needle tube assembly blood and intercept plug 53(and see Figure 12), the cross break of " L " shape cavity has no progeny and is nested with in conduit 41, needle point exposes outside the conduit 41, the other end is fixed on the Paracentesis needle holder 32 in the installing hole, Paracentesis needle holder transverse arm 321 is horizontally through syringe sliding tray 435 and can slides in this groove, and Paracentesis needle holder pushes away that handle 322 is prominent to be passed this sliding tray 435 and be exposed at outside the syringe 43.The sliding tray 435 of tail end sealing can stop the Paracentesis needle holder 32 of recession and puncture needle tubing 31 to pass outside the syringe 43.
With reference to Fig. 3, Fig. 4, Fig. 6, be provided with a kind of soft deposited wing 6 on close that side outer peripheral face of syringe of vascular puncture needle tubing 31, this soft deposited wing 6 is affixed with syringe 43, and both sides have the span, applies the wing 6 bottom surfaces and is a kind of planar shaped or is arcs of recesses a kind of and that the human body ancon is suitable.Apply the wing 6 bottom surfaces the viscous adhesive point is set.
During use, hands pinches syringe 43, needle point is thrust blood vessel, after observing blood back from returning-blood storehouse, the recession Paracentesis needle holder pushes away handle 322, with in the needle point indentation conduit 41 a little, reduce puncture angle, conduit 41 is sent into blood vessel, then push away handle 322 along sliding tray 435 Paracentesis needle holder that slides backward, puncture needle tubing 31 is also along with backward mobile, because it is airtight that the returning-blood storehouse inner blood intercepts plug 53 and the needle tubing 31 that punctures closely cooperates, blood can not ooze out outside the plug, pushes away handle 322 and slides into sliding tray 435 tail ends, needle tip also is retracted into after the conduit wedging part 42, conduit 41 is stayed in the blood vessel, and Elastic buckle resets on the chute, and transverse plane blocks needle stand transverse arm front end face behind the buckle, make needle stand move again forward, so reached anti-pricking wound purpose, simultaneously owing to only have conduit 41 to stay in the blood vessel, various operations and rocking in the later system, conduit 41 can to the blood vessel injury, not reduce phlebitis and occur and the metal anaphylaxis.Withdraw from after the puncture needle tubing 31, descend again the pressure dressing wing 6, allow the deposited wing 6 be bonded on the arm, can not make blood sampling system come off, syringe 43 is held up in a have gentle hands, the another hands touches collecting pipe from blood sample collecting pipe 2 rearward end, allows blood-collecting needle tube 52 needle points puncture back-end sealing layer 21, because collecting pipe 2 interior suction functions, blood enters blood back cavity by conduit 41, by blood-collecting needle tube, flow into fast in the blood sample collecting pipe 2, to the sample amount that requires again, if also need carry out the multitube blood collection, a hands pinches syringe 43 and fixes blood sampling system, and the another hands pinches the collecting pipe pipe close by operation window 436 on the syringe 43, pull out collecting pipe, until blood-collecting needle tube 52 is deviate from the collecting pipe pipe close fully, take advantage of a situation and pull out collecting pipe, change again the new collecting pipe of insertion and take a blood sample.Blood sampling pinches syringe 43 after finishing, and directly withdraws from conduit 41 in the blood vessel.Hold up blood sampling system, withdraw from blood sample collecting pipe 2, blood-collecting needle tube still is in the blood sampling sealing shroud again, and needle point does not expose blood sampling sealing shroud rear end face, can not hurt the people so can guarantee the blood-collecting needle tube needle point yet, and in repeatedly changing the blood collection tube process, the blood sampling sealing shroud also plays the insertion guide effect, and the blood sampling needle point can not sting the people, so play safety protection function, the sealing shroud resilience of taking a blood sample simultaneously is airtight, seals the blood taking needle tube head, has avoided blood contamination.
It is same as the prior art that present embodiment is not stated part.
Claims (26)
1. the vacuum blood collector that has inlying catheter, comprise angiographic neeclle, blood-collecting needle tube and blood sample collecting pipe, it is characterized in that, also include a kind of syringe, puncture needle is a kind of remaining needle, this remaining needle comprises the puncture needle tubing, conduit, Paracentesis needle holder and the plug that intercepts blood, the puncture needle pipe box is put in conduit, the needle point emergence of puncture needle tubing is outside conduit, the tail end of puncture needle tubing is fixed on the Paracentesis needle holder, puncture needle tubing and Paracentesis needle holder form a kind of slide unit that can relative syringe retreats slip, the tail end of indwelling needle catheter is plugged on the leading section of syringe with the mode off-centre near the syringe outer peripheral face, syringe inside has an annular seal space and a cylindrical cavity, wherein annular seal space is positioned at the syringe front end, the tube core of indwelling needle catheter 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, the pipe close of blood sample collecting pipe 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, indwelling needle catheter 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.
2. the vacuum blood collector with inlying catheter 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 vacuum blood collector with inlying catheter 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.
4. the vacuum blood collector with inlying catheter according to claim 3, 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.
5. the vacuum blood collector with inlying catheter according to claim 1 is characterized in that, arranges that near the syringe outer peripheral face indwelling needle catheter that also extends forward is parallel with the center of syringe cylindrical cavity.
6. the vacuum blood collector with inlying catheter 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.
7. according to claim 1 or 6 described vacuum blood collectors with inlying catheter, 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.
8. the vacuum blood collector with inlying catheter according to claim 7, 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 tail end of conduit is affixed by this boss A and syringe.
9. according to claim 1 or 6 described vacuum blood collectors with inlying catheter, it is characterized in that, the annular seal space of syringe front portion is a kind of " L " shape, the cross break section front portion of being somebody's turn to do " L " shape is catheter block, the rear portion is the plug that intercepts blood, and it is affixed that the puncture needle tubing was laterally walked the Paracentesis needle holder at this cross break section and plug rear.
10. the vacuum blood collector with inlying catheter according to claim 9, it is characterized in that, has a kind of needle tubing containing cavity on the plug rear of obstruct blood, the syringe of cylindrical cavity sidepiece, needle tubing with the Paracentesis needle holder recession is contained in this chamber, extend axially the sliding tray of a kind of tail end sealing on the sidewall of this containing cavity, Paracentesis needle holder pushes away that handle is prominent to be passed this sliding tray and be exposed at outside the syringe.
11. the vacuum blood collector with inlying catheter according to claim 9 is characterized in that, approaches to have a small boss B on the annular seal space rear wall at the perpendicular top that fractures of " L " shape, the blood-collecting needle tube front end is fixed on this boss B.
12. the vacuum blood collector with inlying catheter according to claim 11 is characterized in that, blood-collecting needle tube and cylindrical cavity arranged concentric, and extend along the cylindrical cavity center back.
13. the vacuum blood collector with inlying catheter according to claim 1, it is characterized in that, have the interval between sealing chamber rear wall and the cylindrical cavity front bulkhead, extend back pass this cylindrical cavity front bulkhead blood-collecting needle tube simultaneously bearing on this cylindrical cavity front bulkhead.
14. the vacuum blood collector with inlying catheter according to claim 1, 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 sealing shroud 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.
15. the vacuum blood collector with inlying catheter according to claim 1 is characterized in that, blood sample collecting pipe pipe close sealant thickness is 3-0.5MM.
16. the vacuum blood collector with inlying catheter according to claim 15 is characterized in that, blood sample collecting pipe pipe close sealant thickness is 1.5-0.5MM.
17. the vacuum blood collector with inlying catheter 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.
18. the vacuum blood collector with inlying catheter according to claim 17 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.
19. the vacuum blood collector with inlying catheter according to claim 17, 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.
20. the vacuum blood collector with inlying catheter according to claim 19 is characterized in that, 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.
21. the vacuum blood collector with inlying catheter according to claim 20 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.
22. the vacuum blood collector with inlying catheter according to claim 17, 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.
23. the vacuum blood collector with inlying catheter according to claim 17 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.
24. the vacuum blood collector with inlying catheter 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.
25. the vacuum blood collector with inlying catheter according to claim 1 is characterized in that, the length of cylindrical cavity is less than the length of blood sample collecting pipe, and the afterbody that is plugged on the blood sample collecting pipe in the cylindrical cavity exposes outside cylindrical cavity.
26. the vacuum blood collector with inlying catheter according to claim 1, it is characterized in that, syringe with blood sample collecting pipe pipe close in be contained on the position suitable in the syringe and axially be provided with a kind of rectangular groove as operation window along syringe, this operation window has two, relatively is distributed in the both sides of syringe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379836 CN202776322U (en) | 2012-08-02 | 2012-08-02 | Vacuum blood collector with indwelling catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379836 CN202776322U (en) | 2012-08-02 | 2012-08-02 | Vacuum blood collector with indwelling catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202776322U true CN202776322U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220379836 Expired - Lifetime CN202776322U (en) | 2012-08-02 | 2012-08-02 | Vacuum blood collector with indwelling catheter |
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| Country | Link |
|---|---|
| CN (1) | CN202776322U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103127580A (en) * | 2013-03-14 | 2013-06-05 | 苏州大学 | Singlehanded safety indwelling needle |
| WO2014019201A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Syringe type vacuum blood collector |
| WO2014019189A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Vacuum blood collector with indwelling catheter |
| CN104470437A (en) * | 2012-09-03 | 2015-03-25 | 张建铭 | Needle seat assembly for syringe-type vacuum blood collector |
| CN110141255A (en) * | 2019-06-19 | 2019-08-20 | 北京光耀世纪医疗科技有限公司 | Hemostix |
| CN110236567A (en) * | 2019-06-18 | 2019-09-17 | 杭州医学院 | A kind of blood-taking device |
| CN110585522A (en) * | 2019-10-22 | 2019-12-20 | 程基才 | Multifunctional indwelling needle with blood sample collection function |
-
2012
- 2012-08-02 CN CN 201220379836 patent/CN202776322U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014019201A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Syringe type vacuum blood collector |
| WO2014019189A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Vacuum blood collector with indwelling catheter |
| CN104470437A (en) * | 2012-09-03 | 2015-03-25 | 张建铭 | Needle seat assembly for syringe-type vacuum blood collector |
| CN104470437B (en) * | 2012-09-03 | 2016-09-14 | 张建铭 | The hub assemblies of syringe-type vacuum blood collector |
| CN103127580A (en) * | 2013-03-14 | 2013-06-05 | 苏州大学 | Singlehanded safety indwelling needle |
| CN103127580B (en) * | 2013-03-14 | 2014-11-05 | 苏州大学 | Singlehanded safety indwelling needle |
| CN110236567A (en) * | 2019-06-18 | 2019-09-17 | 杭州医学院 | A kind of blood-taking device |
| CN110141255A (en) * | 2019-06-19 | 2019-08-20 | 北京光耀世纪医疗科技有限公司 | Hemostix |
| CN110585522A (en) * | 2019-10-22 | 2019-12-20 | 程基才 | Multifunctional indwelling needle with blood sample collection function |
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