CN104470440B - Syringe type vacuum blood collector with telescopic protective sleeve - Google Patents
Syringe type vacuum blood collector with telescopic protective sleeve Download PDFInfo
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- CN104470440B CN104470440B CN201280074569.1A CN201280074569A CN104470440B CN 104470440 B CN104470440 B CN 104470440B CN 201280074569 A CN201280074569 A CN 201280074569A CN 104470440 B CN104470440 B CN 104470440B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
- A61B5/154—Devices using pre-evacuated means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150633—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150732—Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150351—Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150503—Single-ended needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150572—Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/15074—Needle sets comprising wings, e.g. butterfly type, for ease of handling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
A syringe type vacuum blood collector with a telescopic protective sleeve comprises a vascular puncture needle tube (11), a blood collection needle tube (12), a blood sample collection pipe (2), a syringe (3), and a telescopic protective sleeve formed by sheathing a fixed sleeve (71) and a sliding sleeve (72) together in a sliding manner. The syringe (3) is connected to a tail end of the sliding sleeve (72). A tail end of the vascular puncture needle tube (11) is eccentrically inserted on a needle seat (13) in a manner of closing an outer circumferential surface of the syringe (3). The syringe (3) has a seal cavity (32) and a cylindrical cavity (33) inside, and the seal cavity (32) is located in front of the cylindrical cavity (33). A tube core of the blood collection needle tube and a tube core of the vascular puncture needle tube communicate with the seal cavity (32). The sliding sleeve (72), the syringe (3), the puncture needle tube (11), the puncture needle seat (13), the blood collection needle tube (12), and the blood sample collection pipe (2) form a sliding member sliding relative to the fixed sleeve (71).With the regression of the sliding member, the puncture needle tube (11) is retracted into an inner cavity of the fixed sleeve, thereby ensuring that the regressed puncture needle tube (11) is not pushed out to hurt a person and improving the security and success rate of an operation.
Description
Technical field
It is particularly a kind of with telescopic protective cover the present invention relates to the outer vacuum blood collection apparatus of a kind of human body in clinical treatment
Syringe-type vacuum blood collector.
Background technology
A kind of vacuum blood collection pipe device of the prior art as shown in Figure 1 and Figure 2, including blood taking needle and blood sample collection
Pipe 2, blood taking needle one end is vascular puncture needle tubing 11, and the other end is that, with gum cover blood-collecting needle tube 12, centre is connected by PVC conduits 13
Connect.The device first pulls out protective case on the needle tubing of two in blood sampling, and vascular puncture needle tubing 11 is pierced in sufferer arm vein,
Enter in blood sampling conduit Deng blood, medical worker pushes down immediately the needle handle of the vascular puncture needle tubing 11 with little finger, with anti-puncture
Needle tubing comes off；Because the seal rubber plug of blood sample collection pipe 2 is very thick, the pinpoint inclined plane angle of blood-collecting needle tube 12 is big, and needle point is blunt, adds
The sealed rubber pipe elastic force when being compressed axially of blood-collecting needle tube 12 is very big, therefore needs both hands blood-collecting needle tube 12 could be pierced into into blood
In sample collection tube, operation quite inconvenience.Due to being negative pressure in blood sample collection pipe 2, blood flows into the speed in the collecting pipe
Degree is very fast.It is to be collected to required sample amount, if multitube blood sample need to be gathered, must bimanualness could be by blood-collecting needle tube 12 from receipts
Extract in collector 2.Now the outer soft rubber sleeve of blood-collecting needle tube 12 restores, and encases blood-collecting needle tube, prevents blood in conduit from flowing out pollution ring
Border, the intubation before then repeating；If need not draw blood again, puncture needle tubing 11 on human body must be first extracted, then be covered
Upper needle tip shield, then pull out blood-collecting needle tube 12 on collecting pipe 2.As can be seen here this vacuum blood sampler is due to blood taking needle and collection
The split of pipe 2 is constructed, and blood collection procedure need to simultaneously care for two needle tubing of conduit 13, cause complex operation loaded down with trivial details, multiple operating procedures
Even need both hands and also need to impose certain and just right power just complete extracting and inserting for needle tubing, and now with regard to nothing
Method cares for the needle tubing to other end, so involves the cooperating for needing more than one medical personnel again.This complexity is numerous
The presence of trivial operating procedure and two needle tubing, virtually increased medical personnel's workload and psychological burden, suffer from
Unconsciousness, restless, disoperative patient and patient infant and under the big scene of limb activity amplitude, easily produce and grasp by mistake
Make.And after puncture terminates, exposed puncture needle tubing needle point does not have security protection, and easily thorn, to people, produces potential safety hazard.
The content of the invention
It is an object of the invention to overcome weak point of the prior art, and provide a kind of structure simplify, it is simple to operate
Readily, the puncture needle pipe after terminating to puncture has the syringe-type vacuum blood collector with telescopic protective cover of security protection.
The purpose of the present invention is realized by following approach.
Syringe-type vacuum blood collector with telescopic protective cover, including vascular puncture needle tubing, blood-collecting needle tube and blood sample
Collecting pipe, its composition is characterized by, and also includes a kind of syringe and one kind and is set in together by fixed cover and slip cap slip
Telescopic protective cover, syringe is affixed with slip cap tail end, and the tail end of vascular puncture needle tubing is inclined in the way of near syringe outer peripheral face
The heart is plugged on Paracentesis needle holder, and the needle point of the needle tubing and the major part of needle tubing are exposed outside syringe, and syringe inside has one
Annular seal space and a cylindrical cavity, wherein annular seal space are located at before cylindrical cavity, and the tube core of vascular puncture needle tubing is connected with the annular seal space,
The front end of blood-collecting needle tube is installed with the capsule walls, and rear end and needle tubing major part extend back and be plugged on blood sample collection
In the pipe close of pipe, the tube core of blood-collecting needle tube is connected with the annular seal space, and cylindrical cavity is located at the rear and its rear end of annular seal space and opens
Put, blood sample collection pipe pipe close is nested with the cylindrical cavity front in removable mode, blood sample collection pipe pipe
The cylindrical cavity that plug aft bulkhead has a sealant that can be pierced through by blood-collecting needle tube rear end, blood sample collection pipe front end face has
It is promising to pierce through this sealant and space that the front blood sample collection tube capacity for pushing away is put, vascular puncture needle tubing tube core, annular seal space, blood sampling
Blood sample collection pipe tube chamber after needle tubing tube core and pierced sealant constitutes a kind of blood channel, and Paracentesis needle holder is located to be slided
Dynamic set tail end is simultaneously affixed with syringe, and Paracentesis needle holder inner chamber is annular seal space, punctures needle tubing and axially walks along slip cap inner chamber and most
It is fixed on eventually on Paracentesis needle holder, slip cap, syringe, puncture needle tubing, Paracentesis needle holder and blood-collecting needle tube or even blood sample collection
A kind of relative slide unit for being relatively fixed set slip of pipe composition, as the retrogressing of slide unit punctures needle tubing fixed cover is retracted to
In inner chamber.
So, with syringe rigid attachment vascular puncture needle tubing, blood-collecting needle tube and blood sample collection pipe, three not only is made
Body constructs and constitutes a kind of traditional needle cylinder structure, and structure simplifies, and holding is easy to operate, and operating process and conventional syringes
Operation is extremely similar.
During blood sampling, hold syringe and vascular puncture needle tubing is pierced in sufferer arm vein, when seeing blood back, pin is handled on the other hand
Cylinder, another hand or same finger sinciput blood sample collection pipe another on the other hand, make blood-collecting needle tube rear end pierce through blood sample collection pipe
The sealant of pipe close, due to the negative pressure of blood sample collection pipe tube chamber, blood flows into the speed in the collecting pipe.It is to be collected
To required sample amount, if multitube blood sample need to be gathered, one hand is only needed to extract collecting pipe from cylindrical cavity, now blood-collecting needle tube
The outer blood sampling sealing shroud made by soft rubber sleeve restores, and encases blood-collecting needle tube, prevents blood in conduit from flowing out pollution environment, Ran Houzai
Take out new blood sample collection pipe；If need not draw blood again, only need to first extract and puncture on human body needle tubing, put needle point shield
Set, then remove collecting pipe.
At the end of blood sampling, can pusher syringe retreat puncture needle tubing to submerge in fixed cover inner chamber, now fixed cover is used as wearing
The protective case of pricker pipe.
The purpose of the present invention can also be realized by following approach.
The present invention is with regard to the further optimization of telescopic protective cover：
A kind of non-return device is also included, this non-return device is arranged between slide unit and fixed cover, is retreated to puncture
If push away before slide unit that needle tubing is retracted in fixed cover inner chamber is reverse prevent contact with this non-return device.
So, because of the prevention of non-return device, retreat slide unit in place can not before push away.So as to both ensure that what is retreated wears
Pricker pipe will not again be elapsed out and hurted sb.'s feelings, it is also possible to promote this syringe-type vacuum blood collector single use of the present invention.
It is common in this non-return device aciculiform medicine equipment in the prior art, can apply in the present invention mostly
In.Here of the present invention provides the non-return device of two kinds of optimization：
The non-return device is a kind of elastic symmetry closure tongue piece, in Paracentesis needle holder front, fixed cover front bulkhead
In chamber, puncture needle tubing tail end and wore the closure joint portion of this closure tongue piece and be fixed on Paracentesis needle holder.
So, after puncture needle tubing is removed, the blocking of tongue piece elastic reset is former to puncture barrel outlet.
The present invention with regard to syringe-type vacuum blood collection construction further optimization be：
The vascular puncture needle tubing for extending near syringe outer peripheral face arrangement and forward and the center parallel of syringe.
Annular seal space is a kind of blood back cavity, has observable blood back on the position that syringe outer peripheral face is adapted with the annular seal space
Perspective portion.
Syringe leading section is consolidated in the lower extending end head of the wedge shape in the downwardly extending wedge shape that contracts in one kind, vascular puncture needle tubing with syringe
Connect, the perspective portion of observable blood back is located on the inclined-plane of the wedge shape.
Upper contracting end and the outer peripheral face of syringe of the tapered ramp intersects, and the lower extending end of the tapered ramp is near syringe periphery
The position in face forms a kind of small boss A, and vascular puncture needle tubing tail end is affixed with syringe by this boss A.
So, the tapered ramp faces the operator for bending to be operated, and is easy to observation.
The perspective portion can be made using transparent material.
Also include a kind of drive end bearing bracket, this drive end bearing bracket be located at syringe front and it is affixed with fixed cover, drive end bearing bracket outer peripheral face with
Syringe outer peripheral face smoothly transits, and syringe leading section is located on the drive end bearing bracket in the downwardly extending wedge shape that contracts in one kind.
Cover after annular seal space with a small boss B, the fixation of blood-collecting needle tube front end is on this boss B.
Blood-collecting needle tube and syringe arranged concentric, and extend along syringe center back.
Blood-collecting needle tube is coated with blood sampling sealing shroud, and blood sample collection pipe pipe close is provided centrally with axially extending to sealing
The core bore of layer, this core bore internal diameter is more slightly larger than sealing shroud external diameter of taking a blood sample.
So, blood-collecting needle tube band with blood sampling seal pipe along this core bore penetrate pipe close when, blood sampling sealing shroud compressed axially
Compression radial distorted dilatating and deformable, just with this core bore inner hole wall extrusion friction, will not more allow blood-collecting needle tube to deviate from blood sample
Collecting pipe pipe close.
Blood sample collection pipe pipe close sealant thickness is 3-0.5MM, preferably 1.5-0.5MM.
So blood-collecting needle tube can easily wear out sealant.
There is the construction being adapted with blood sample collection pipe pipe close, this construction not only facilitates blood sample in cylindrical cavity
The loading and taking-up of collecting pipe, while and being connected the annexation to be formed compared with consolidation with blood sample collection pipe pipe close.
The further optimization of this construction can be so：Blood sample collection pipe is plugged in cylindrical cavity, is adapted
Construction is a kind of construction of interference fits connection in size.
It may also is that：Cylindrical cavity inwall is circumferentially symmetrically arranged with and is adapted to place's bullet with blood sample collection pipe pipe close
Property the tactile construction of card, when the two touches state in card, blood-collecting needle tube rear end is just before sealant to be pierced through.
The blood sample collection pipe that had so both conveniently been inserted in cylindrical cavity will not fall off out when upright, and from sense of touch
The insertion degree of the blood sample collection pipe in cylindrical cavity is given, so as to convenient installation.
It can be a kind of short arc convex clamping point that this elastic card touches construction, either this short arc convex clamping point or blood sample collection pipe
Pipe close is made up of elastomeric material.
This elastic card touches construction and can cause the elastic urgent connection status of cylindrical cavity inwall and pipe close, but is applying
During axial force, blood sample collection pipe still can do with respect to cylindrical cavity and before push away freely or retreat.
This short arc convex clamping point be exactly as its name suggests it is a kind of dash forward the convex salient point on cylindrical cavity inwall, thickness it is low shallow and
In front and back there is arc-shaped transition side, passes through in order to creeping for pipe close.
Can be made with separately increasing other adaptation connecting structure on the basis of touching construction in this elastic card and carrying out cooperation
To reach more preferable using effect, using cooperatively for one of which optimization is the following is：
The construction being adapted with pipe close in cylindrical cavity is that a kind of a plurality of inwalls along cylindrical cavity are circumferentially distributed or right
The construction for claiming the elastic card of distribution tactile, the construction that another kind is adapted is the L-shaped groove and making being produced on pipe close outer peripheral face
Prominent salient point on cylindrical cavity inwall, the prominent salient point enters L-shaped groove from the termination of the L-shaped groove vertical section positioned at pipe close front end face
And can slide wherein, when cylindrical cavity inwall and pipe close elastic card are touched, the prominent salient point is had been enter in the vertical section in L-shaped groove
But the bottom of the vertical section is not yet reached, now blood-collecting needle tube rear end is just in before sealant to be pierced through, when sinciput blood sample
This collecting pipe to blood-collecting needle tube is pierced through after sealant, and the prominent salient point just reaches the bottom of the vertical section, now rotates blood sample
Collecting pipe, the cross break section that the prominent salient point is entered in L-shaped groove.
So, the free degree that the cross break section in L-shaped groove can be with locked blood sample collection pipe in the axial direction so as to respect to pin
Cylinder can neither before push away and can not retreat.
Can be again so：Blood sample collection pipe screw thread is connected in cylindrical cavity, and the construction being adapted is a kind of spiral shell
Line connecting structure.
Blood sample collection pipe pipe close is made up of seal rubber plug and protection cap, fluid sealant plug sleeve plug in collecting pipe tube chamber,
Protection cap lid plug is on the collecting pipe mouth of pipe and seal rubber plug.
The construction being adapted with cylindrical cavity is generally located in protection cap.
The length of cylindrical cavity is nested with the blood sample collection in cylindrical cavity less than the length of blood sample collection pipe
The afterbody of pipe is exposed outside cylindrical cavity.
Syringe have along syringe is axially arranged with being contained on the position being adapted in syringe in blood sample collection pipe pipe close
Used as operation window, this operation window has two to a kind of strip grooves, and Relative distribution is in the both sides of syringe.
So blood back can be observed by this operation window, observe the state of blood volume in blood sample collection pipe, also observable blood
The insert state and insertion degree of liquid sample collection tube, also first can pinch when blood sample collection pipe is extracted through this operation window
Hold pipe close and firmly exit blood sample collection pipe backward, collect during blood sample collection pipe tube body and pipe close so as to prevent from exiting
Disengaging.
A kind of tactile platform is provided with the close syringe of vascular puncture needle tubing that side outer peripheral face, this tactile platform bottom surface is in one kind
Planar shaped or in a kind of arcs of recesses being adapted with human body ancon.
This tactile platform facilitates syringe with human body by touching, and increases the frictional force of syringe and human skin, makes syringe be difficult to slide
It is de-.
Be provided with a kind of soft deposited wing on the close syringe of vascular puncture needle tubing that side outer peripheral face, this soft deposited wing with
Syringe is affixed, and both sides have the span, applies wing bottom surface in a kind of planar shaped or in a kind of arcs of recesses being adapted with human body ancon.
This deposited wing facilitates syringe with human body by touching, and increases the frictional force of syringe and human skin, makes syringe be difficult to slide
It is de-.
In sum, the present invention has the advantage that compared to existing technology：Structure simplifies, and holding is easy to operate, and operates
Process is extremely similar to the operation of conventional syringes, and medical personnel's workload and psychological burden are reduced to greatest extent, even if
Suffer from unconsciousness, restless, disoperative patient and patient infant and under the big scene of limb activity amplitude, also do not allow
Maloperation is also easy to produce, so as to improve the security and Degree of Success of operation.And the further intervention of safe shape construction, so as to both protect
The puncture needle tubing that card is retreated will not be elapsed out again hurts sb.'s feelings, it is also possible to promote this syringe-type vacuum blood collector of the present invention
Single use.
Description of the drawings
Fig. 1 is a kind of vacuum blood collection pipe device blood sample collection pipe insert state schematic diagram in prior art.
Fig. 2 is that a kind of vacuum blood collection pipe device blood sample collection pipe withdraws from view in prior art.
Fig. 3 is the structural representation section view master of the syringe-type vacuum blood collector that preferred embodiment has telescopic protective cover
View.
Fig. 4 is that the structural representation of the syringe-type vacuum blood collector that preferred embodiment has telescopic protective cover is overlooked
Figure.
Fig. 5 is the solid that preferred embodiment has state after the syringe-type vacuum blood collector blood sampling of telescopic protective cover
Schematic diagram.
Fig. 6 is the plane that preferred embodiment has state after the syringe-type vacuum blood collector blood sampling of telescopic protective cover
Schematic diagram.
Fig. 7 is that there is preferred embodiment the drive end bearing bracket structure in the syringe-type vacuum blood collector of telescopic protective cover to show
Meaning sectional plan view.
Fig. 8 is that there is preferred embodiment the drive end bearing bracket structure in the syringe-type vacuum blood collector of telescopic protective cover to show
Meaning section view left view.
The present invention is described more in detail below in conjunction with the accompanying drawings.
Label declaration：
11 puncture the blood sampling blood sampling blood of sealing shroud 2 of needle stand 15 of 131 boss B of needle tubing 12 blood-collecting needle tube, 13 Paracentesis needle holder 14
The telescopic protective cover of 35 operation window of liquid sample collection tube 21 sealant, 3 syringe, 31 boss A, 32 annular seal space, 33 cylindrical cavities 37
The slip cap of 71 fixed cover of closure 6 drive end bearing bracket of tongue piece of the wing 5 72 is applied in chamber 4.
Specific embodiment
Most preferred embodiment：
With reference to Fig. 3, Fig. 4, the syringe-type vacuum blood collector with telescopic protective cover, including vascular puncture needle tubing 11, blood sampling
Needle tubing 12, blood sample collection pipe 2, syringe 3, apply the wing 4, closure tongue piece 5, drive end bearing bracket 6 and by fixed cover 71 and slip cap 72
The telescopic protective cover that slip is set in together.Syringe 3 is a hollow cylindrical barrel-type casing, is made up of medical transparent material.Before
End cap 6 is located at the front of syringe 3 and affixed with the fixed cover 71 in telescopic protective cover, the rear end outer peripheral face of drive end bearing bracket 6 and the periphery of syringe 3
The sizes such as face smoothly transit, and the leading section of drive end bearing bracket 6 is in downwardly extending wedge shape, the upper contracting end of the tapered ramp and the drive end bearing bracket of contracting in one kind
The outer peripheral face of 6 rear ends intersects, and the lower extending end of the tapered ramp is near the outer peripheral face of drive end bearing bracket 6（I.e. near case inside edge）'s
Position forms a kind of small boss A31, and boss A31 central authorities arrange and puncture the installation through-hole of needle tubing 11, puncture needle tubing 11 logical through installing
Hole is simultaneously axially walked and is finally fixed on Paracentesis needle holder along the inner chamber of slip cap 72, and Paracentesis needle holder 13 is located at the tail end of slip cap 72 simultaneously
It is affixed with syringe 3.Puncture needle tubing 11 and the center parallel of syringe 3 but decentered distribution, the needle point of the needle tubing and the major part of needle tubing
It is exposed outside syringe 3.The inside of syringe 3 has a telescopic protective cover chamber 37, an annular seal space 32 and a cylindrical cavity 33, syringe 3
Inner chamber middle part has a partition, and this partition front is telescopic protective cover chamber 37, and this partition rear is annular seal space 32 and cylindrical cavity
33, annular seal space 32 is located at the front of cylindrical cavity 33.The tube core for puncturing needle tubing 11 is connected with the annular seal space 32.The side of Paracentesis needle holder 13
Touch in open recesses and with this partition rear side sealing paste of the inner chamber of syringe 3, the cavity for being formed is annular seal space 32, the annular seal space
32 opposite side wall is annular seal space rear wall, and the rear side of the rear wall of annular seal space 32 has a small boss B131, the front end of blood-collecting needle tube 12
Fix on this boss B131, rear end and needle tubing major part extend back and be plugged in the pipe close of blood sample collection pipe 2, adopt
The tube core of blood needle tubing 12 is connected with the annular seal space 32, and blood-collecting needle tube 12 is coaxial with cylindrical cavity 33.Blood-collecting needle tube 12 is coated with
Blood sampling sealing shroud 15, blood sample collection pipe pipe close is provided centrally with axially extending to the core bore of sealant 21, this core bore internal diameter
Than taking a blood sample, the external diameter of sealing shroud 15 is slightly larger.So, blood-collecting needle tube 12 with blood sampling sealing shroud 15 along this core bore penetrate pipe close when, blood sampling
Sealing shroud 15 is subject to axial compression compression radial distorted dilatating and deformable, just with this core bore inner hole wall extrusion friction, more will not allow
Blood-collecting needle tube 12 deviates from blood sample collection pipe pipe close.Cylindrical cavity 33 is located at the rear and its rear end of annular seal space 32 and opens,
The pipe close of blood sample collection pipe 2 in front screw-casing in the cylindrical cavity 33, less than blood sample receive by the length of cylindrical cavity 32
The length of collector 2, the afterbody of the blood sample collection pipe 2 being nested with cylindrical cavity 32 is exposed outside cylindrical cavity.Blood sample
This collecting pipe pipe close is made up of seal rubber plug 22 and protection cap 23, and 22 sets of seal rubber plug is filled in collecting pipe tube chamber, protection cap 23
On the collecting pipe mouth of pipe and seal rubber plug, the pipe close aft bulkhead of blood sample collection pipe 2 has one can be by after blood-collecting needle tube 12 for lid plug
The sealant 21 that terminal spine is worn, sealant thickness is 1.5MM, and the cylindrical cavity 33 of the front end face of blood sample collection pipe 2 has for thorn
Wear this sealant 21 and the accommodating space of the front blood sample collection pipe 2 for pushing away.The inwall of cylindrical cavity 33 is circumferentially symmetrically arranged with
Elastic card tactile construction in place's is adapted to the protection cap 23 of blood sample collection pipe 2, when the two touches state in card, blood-collecting needle tube 12
Rear end is just before sealant to be pierced through.It is a kind of short arc convex clamping point, this short arc convex clamping point and guarantor that this elastic card touches construction
Protecting cover 23 is made up of elastomeric material.Puncture the blood after needle tubing tube core, annular seal space, blood-collecting needle tube tube core and pierced sealant
Sample collection tube tube chamber constitutes a kind of blood channel.
With reference to Fig. 5, Fig. 6, syringe 3 axially sets on the position being adapted with blood sample collection protection of pipe lid 23 along syringe
A kind of strip grooves are equipped with as operation window 35, this operation window 35 has two, and Relative distribution is in the both sides of syringe 3.
With reference to Fig. 5, Fig. 6, slip cap 72, syringe 3, puncture needle tubing 11, Paracentesis needle holder 13 and blood-collecting needle tube 12 or even blood
Liquid sample collection tube 2 constitutes a kind of relative slide unit for being relatively fixed the slip of set 71.At the end of blood sampling, can pusher syringe 3, it is sliding
Dynamic set 72 is relatively fixed set 71 with the retrogressing of syringe 3 and slides backward, and also moves back gradually also with the puncture needle tubing 11 drawn back
In entering the inner chamber of fixed cover 71, until submerging completely in the inner chamber of fixed cover 71.Blood sample collection pipe 2 now can be backward extracted,
It is set to depart from syringe 3.
With reference to Fig. 7, Fig. 8, a kind of non-return device is also included, the non-return device is a kind of elastic symmetry closure tongue piece 5, is pacified
In being mounted in the inner chamber of drive end bearing bracket 6 at boss A31 rears, the puncture tail end of needle tubing 11 wore the closure joint portion of this closure tongue piece 5 simultaneously
Finally it is fixed on Paracentesis needle holder 13.
So, after puncture needle tubing is removed, the former needle tubing 11 that punctures of closure tongue piece 5 elastic reset blocking is exported.Prevention is backed to
Position slide unit can not before push away.Hurt sb.'s feelings so as to both ensure that the puncture needle tubing 11 for retreating will not be elapsed out again, it is also possible to promote
This syringe-type vacuum blood collector single use of the present invention, will not be reused by lawless person.
With reference to Fig. 3, Fig. 4, to puncture and be provided with a kind of soft deposited wing 4 on close syringe 3 that side outer peripheral face of needle tubing 11,
This soft both sides of the deposited wing 4 has the span, and it is in a kind of arcs of recesses being adapted with human body ancon to apply wing bottom surface, applies the bottom surface of the wing 4 and arranges
Viscosity glue point.
The not described part of the present embodiment is same as the prior art.
Claims (22)
1. the syringe-type vacuum blood collector with telescopic protective cover, including vascular puncture needle tubing, blood-collecting needle tube and blood sample are received
Collector, it is characterised in that also include a kind of syringe and a kind of by stretching that fixed cover and slip cap slip are set in together
Protective case, syringe is affixed with slip cap tail end, and the tail end of vascular puncture needle tubing is eccentric in the way of near syringe outer peripheral face to be planted
On Paracentesis needle holder, the needle point of the needle tubing and the major part of needle tubing are exposed outside syringe, and syringe inside has an annular seal space
With a cylindrical cavity, wherein before cylindrical cavity, the tube core of vascular puncture needle tubing is connected annular seal space with the annular seal space, blood taking needle
The front end of pipe is installed with the capsule walls, and rear end and needle tubing major part extend back and be plugged on the pipe of blood sample collection pipe
In plug, the tube core of blood-collecting needle tube is connected with the annular seal space, and cylindrical cavity is located at the rear and its rear end of annular seal space and opens, blood
Sample collection tube pipe close is nested with the cylindrical cavity front in removable mode, blood sample collection pipe pipe close aft bulkhead
With a sealant that can be pierced through by blood-collecting needle tube rear end, the cylindrical cavity of blood sample collection pipe front end face has to pierce through
This sealant and space that the front blood sample collection tube capacity for pushing away is put, vascular puncture needle tubing tube core, annular seal space, blood-collecting needle tube tube core
And the blood sample collection pipe tube chamber after pierced sealant constitutes a kind of blood channel, Paracentesis needle holder is located at slip cap tail end
And it is affixed with syringe, Paracentesis needle holder inner chamber is annular seal space, punctures needle tubing and axially walks and be finally fixed at along slip cap inner chamber
On Paracentesis needle holder, slip cap, syringe, puncture needle tubing, Paracentesis needle holder and blood-collecting needle tube or even blood sample collection pipe constitute one
Plant and be relatively fixed the slide unit that set slides, retract in fixed cover inner chamber as the retrogressing of slide unit punctures needle tubing；Sealing
Chamber is a kind of blood back cavity, and on the position that syringe outer peripheral face is adapted with the annular seal space perspective portion with observable blood back；
A kind of non-return device is also included, this non-return device is arranged between slide unit and fixed cover, retreated to puncture needle tubing
Contact if pushing away before the slide unit being retracted in fixed cover inner chamber is reverse and will produce prevention property with this non-return device.
2. the syringe-type vacuum blood collector with telescopic protective cover according to claim 1, it is characterised in that check dress
It is a kind of elastic symmetry closure tongue piece to put, and in Paracentesis needle holder front, the inner chamber of fixed cover front bulkhead, punctures needle tubing tail end
Wore the closure joint portion of this closure tongue piece and be fixed on Paracentesis needle holder, after puncture needle tubing is removed, the resistance of tongue piece elastic reset
Disconnected former puncture barrel outlet.
3. the syringe-type vacuum blood collector with telescopic protective cover according to claim 1, it is characterised in that near syringe
The center parallel of the vascular puncture needle tubing that outer peripheral face arrangement extends forward, the vascular puncture needle tubing and syringe.
4. the syringe-type vacuum blood collector with telescopic protective cover according to claim 1, it is characterised in that syringe front end
In the downwardly extending wedge shape that contracts in one kind, vascular puncture needle tubing is affixed with syringe in the lower extending end head of the wedge shape, observable blood back in portion
Perspective portion is located on the inclined-plane of the wedge shape.
5. the syringe-type vacuum blood collector with telescopic protective cover according to claim 4, it is characterised in that the wedge shape is oblique
Upper contracting end and the outer peripheral face of syringe in face intersects, and the lower extending end of the tapered ramp is forming one kind near the position of syringe outer peripheral face
Small boss A, vascular puncture needle tubing tail end is affixed with syringe by this boss A.
6. the syringe-type vacuum blood collector with telescopic protective cover according to claim 1, it is characterised in that also include
A kind of drive end bearing bracket, this drive end bearing bracket is positioned at syringe front and affixed with fixed cover, and drive end bearing bracket outer peripheral face is slipped over syringe outer peripheral face light
Cross, syringe leading section is in the downwardly extending wedge shape and on the drive end bearing bracket of contracting in one kind.
7. the syringe-type vacuum blood collector with telescopic protective cover according to claim 1, it is characterised in that after annular seal space
Cover with a small boss B, the fixation of blood-collecting needle tube front end is on this boss B.
8. the syringe-type vacuum blood collector with telescopic protective cover according to claim 1, it is characterised in that blood-collecting needle tube
With syringe arranged concentric, and along syringe center back extend.
9. the syringe-type vacuum blood collector with telescopic protective cover according to claim 1 or 8, it is characterised in that blood sampling
Needle tubing is coated with blood sampling sealing shroud, and blood sample collection pipe pipe close is provided centrally with axially extending to the core bore of sealant, this
Core bore internal diameter than take a blood sample sealing shroud external diameter it is slightly larger, blood-collecting needle tube band with blood sampling sealing shroud along this core bore penetrate pipe close when, take a blood sample it is close
Big envelope is subject to axial compression compression radial distorted dilatating and deformable, with this core bore inner hole wall extrusion friction.
10. the syringe-type vacuum blood collector with telescopic protective cover according to claim 1, it is characterised in that blood sample
This collecting pipe pipe close sealant thickness is 0.5-3mm.
The 11. syringe-type vacuum blood collectors with telescopic protective cover according to claim 10, it is characterised in that blood sample
This collecting pipe pipe close sealant thickness is 0.5-1.5mm.
The 12. syringe-type vacuum blood collectors with telescopic protective cover according to claim 1, it is characterised in that tubular is empty
There is the construction that is adapted with blood sample collection pipe pipe close in chamber, its be connected with blood sample collection pipe pipe close to be formed compared with
The annexation of consolidation, blood sample collection pipe loads and takes out cylindrical cavity via this construction.
The 13. syringe-type vacuum blood collectors with telescopic protective cover according to claim 12, it is characterised in that blood sample
This collecting pipe is plugged in cylindrical cavity, and the construction being adapted is a kind of construction of interference fits connection in size.
The 14. syringe-type vacuum blood collectors with telescopic protective cover according to claim 12, it is characterised in that tubular is empty
Cavity wall is circumferentially symmetrically arranged with and elastic card tactile construction in place's is adapted to blood sample collection pipe pipe close, when the two is touched in card
During state, construction cylindrical cavity inwall is touched with pipe in blood-collecting needle tube rear end just before sealant to be pierced through via this elastic card
Plug forms elastic urgent connection status, but this elastic drag less than the axial force for applying manually.
The 15. syringe-type vacuum blood collectors with telescopic protective cover according to claim 14, it is characterised in that this elasticity
It is a kind of short arc convex clamping point that card touches construction, and this short arc convex clamping point or blood sample collection pipe pipe close are made up of elastomeric material.
The 16. syringe-type vacuum blood collectors with telescopic protective cover according to claim 15, it is characterised in that this short
Arc convex clamping point is a kind of convex salient point on cylindrical cavity inwall of dashing forward, and thickness is low shallow and in front and back side has and is easy to pipe close to creep to wear
Arc-shaped transition more.
The 17. syringe-type vacuum blood collectors with telescopic protective cover according to claim 12, it is characterised in that tubular is empty
The construction being adapted with pipe close in chamber is a kind of circumferentially distributed or symmetrical elastic card of a plurality of inwalls along cylindrical cavity
Tactile construction, the construction that is adapted of another kind is the L-shaped groove that is produced on pipe close outer peripheral face and is produced on cylindrical cavity inwall
On prominent salient point, the prominent salient point enters from the termination of the L-shaped groove vertical section positioned at pipe close front end face and L-shaped groove and can slide wherein
Dynamic, when cylindrical cavity inwall and pipe close elastic card are touched, the prominent salient point has been enter in the vertical section in L-shaped groove but not yet reaches L
The bottom of the vertical section in shape groove, now blood-collecting needle tube rear end is proper before sealant to be pierced through, when sinciput blood sample is received
Collector to blood-collecting needle tube is pierced through after sealant, and the prominent salient point just reaches the bottom of the vertical section, now rotates blood sample collection
Pipe, the cross break section that the prominent salient point is entered in L-shaped groove.
The 18. syringe-type vacuum blood collectors with telescopic protective cover according to claim 12, it is characterised in that blood sample
This collecting pipe is threaded in cylindrical cavity, and the construction being adapted is a kind of threaded connection configuration.
The 19. syringe-type vacuum blood collectors with telescopic protective cover according to claim 1, it is characterised in that blood sample
This collecting pipe pipe close is made up of seal rubber plug and protection cap, and fluid sealant plug sleeve plug in collecting pipe tube chamber, receiving by protection cap lid plug
On the collector mouth of pipe and seal rubber plug.
The 20. syringe-type vacuum blood collectors with telescopic protective cover according to claim 1, it is characterised in that tubular is empty
The length in chamber less than blood sample collection pipe length, the afterbody of the blood sample collection pipe being nested with cylindrical cavity it is exposed
Outside cylindrical cavity.
The 21. syringe-type vacuum blood collectors with telescopic protective cover according to claim 1, it is characterised in that syringe exists
Have a kind of strip grooves conduct along syringe is axially arranged with being contained on the position being adapted in syringe in blood sample collection pipe pipe close
Operation window, this operation window has two, and Relative distribution is in the both sides of syringe.
The 22. syringe-type vacuum blood collectors with telescopic protective cover according to claim 1, it is characterised in that blood vessel is worn
A kind of tactile platform is provided with the close syringe of pricker pipe that side outer peripheral face, this tactile platform bottom surface is in a kind of planar shaped or in one kind
The arcs of recesses being adapted with human body ancon.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/079590 WO2014019197A1 (en) | 2012-08-02 | 2012-08-02 | Syringe type vacuum blood collector with telescopic protective sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104470440A CN104470440A (en) | 2015-03-25 |
| CN104470440B true CN104470440B (en) | 2017-04-19 |
Family
ID=50027120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280074569.1A Active CN104470440B (en) | 2012-08-02 | 2012-08-02 | Syringe type vacuum blood collector with telescopic protective sleeve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104470440B (en) |
| WO (1) | WO2014019197A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10850046B2 (en) * | 2016-03-28 | 2020-12-01 | Becton, Dickinson And Company | Cannula locator device |
| CN109893142B (en) * | 2019-04-16 | 2023-11-17 | 上海金塔医用器材有限公司 | Flexible blood sampling device and rigid blood sampling device |
| CN110236567B (en) * | 2019-06-18 | 2022-05-31 | 杭州医学院 | Blood sampling device |
| CN110960231B (en) * | 2019-11-27 | 2022-08-19 | 中国大熊猫保护研究中心 | Panda blood sampling device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3659587A (en) * | 1970-06-30 | 1972-05-02 | Affiliated Hospital Prod | Valved connector arrangement |
| CA1009110A (en) * | 1971-04-30 | 1977-04-26 | Abbott Laboratories | Blood collecting assembly |
| US3874367A (en) * | 1972-06-29 | 1975-04-01 | Becton Dickinson Co | Valved blood sampling needle assembly |
| US4166450A (en) * | 1977-07-22 | 1979-09-04 | Metatech Corporation | Device and procedure for collecting a succession of intravenous blood samples |
| US5423758A (en) * | 1993-12-16 | 1995-06-13 | Shaw; Thomas J. | Retractable fluid collection device |
| US20040186426A1 (en) * | 2003-03-20 | 2004-09-23 | Allard Edward F. | Blood collecting syringe with retractable needle |
| CN102113887A (en) * | 2010-01-06 | 2011-07-06 | 白杰 | Instant vacuum venous blood-sampling method and special equipment |
| CN202235404U (en) * | 2011-09-23 | 2012-05-30 | 王金侠 | Disposal hemostix safe device |
| CN202776328U (en) * | 2012-08-02 | 2013-03-13 | 张建铭 | Indwelling needle with syringe type vacuum blood collector |
| CN202776321U (en) * | 2012-08-02 | 2013-03-13 | 张建铭 | Syringe type vacuum blood collector with telescopic protective sleeve |
| CN202776320U (en) * | 2012-08-02 | 2013-03-13 | 张建铭 | Syringe type vacuum blood collecting device |
-
2012
- 2012-08-02 CN CN201280074569.1A patent/CN104470440B/en active Active
- 2012-08-02 WO PCT/CN2012/079590 patent/WO2014019197A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014019197A1 (en) | 2014-02-06 |
| CN104470440A (en) | 2015-03-25 |
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Effective date of registration: 20230909 Address after: Building S3 #, Medical Equipment Industrial Park, Industrial New Area, No. 66 Tingzhou Avenue South Road, Cewu Town, Changting County, Longyan City, Fujian Province, 366309 Patentee after: Bestway (Changting) Medical Devices Co.,Ltd. Address before: No. 27, Lane 45, Kaohsiung Road, Huangpu District, Shanghai, 200011 Patentee before: Zhang Jianming |