CN104470434A - Integral vacuum blood sampling apparatus with needle tip protective sleeve - Google Patents
Integral vacuum blood sampling apparatus with needle tip protective sleeve Download PDFInfo
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- CN104470434A CN104470434A CN201280074562.XA CN201280074562A CN104470434A CN 104470434 A CN104470434 A CN 104470434A CN 201280074562 A CN201280074562 A CN 201280074562A CN 104470434 A CN104470434 A CN 104470434A
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- needle
- blood
- cylindrical cavity
- sample collection
- pipe
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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
- A61B5/14—Devices for taking samples of blood ; Measuring characteristics of blood in vivo, e.g. gas concentration within the blood, pH-value of blood
- A61B5/1405—Devices for taking blood samples
- A61B5/1438—Devices for taking blood samples 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
- A61B5/15074—Needle sets comprising wings, e.g. butterfly type, for ease of handling
-
- 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
- A61B5/150992—Blood sampling from a fluid line external to a patient, such as a catheter line, combined with an infusion line; blood sampling from indwelling needle sets, e.g. sealable ports, luer couplings, valves
-
- 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
- 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
- A61M5/162—Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and 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
Abstract
The present invention relates to an external vacuum blood sampling instrument, especially an integral vacuum blood sampling apparatus with a needle tip protective sleeve. The integral vacuum blood sampling apparatus with the needle tip protective sleeve comprises a puncture needle component, a flexible connecting tube (13), a blood sampling needle tube (12), a blood sample collection tube (2) and a blood sampling needle seat (3). The puncture needle component comprises a puncture needle tube (11), a puncture needle seat (15), an operating handle (16), a needle tip protective sleeve (17) and the like. The blood sampling apparatus is built integrally and has a simple structure. A down-pressing blood sampling needle seat is used for enabling a needle tip of the blood sampling needle tube to penetrate through a sealant, which is easy in operation. The needle tip protective sleeve enables the puncture needle tube to withdraw into the protective sleeve directly from a human body, thereby preventing environmental pollution and accidental injury.
Description
Technical field
The present invention relates to vacuum blood collection apparatus, particularly a kind of monoblock type vacuum blood sampler with needle tip protection sleeve outside a kind of human body in clinical treatment.
Background technology
A kind of vacuum blood sampler of the prior art is as shown in Fig. 1, Fig. 2, including blood taking needle 1 and blood sample collection pipe 2, blood taking needle 1
One end is vascular puncture needle tubing 11, and the other end is to carry gum cover blood-collecting needle tube 12, and centre is connected by PVC conduits 13.The device first pulls out protective case on the needle tubing of two, by vascular puncture needle tubing 11 in blood sampling
It is pierced into sufferer arm vein, waits blood to enter in blood sampling conduit, medical worker pushes down the needle handle of the vascular puncture needle tubing 11 with little finger immediately, is come off to prevent puncturing needle tubing；Due to blood sample collection pipe 2
Seal rubber plug is very thick, and the pinpoint inclined plane angle of blood-collecting needle tube 12 is big, and needle point is blunt, and it is very big to add the sealed rubber pipe of blood-collecting needle tube 12 elastic force when being compressed axially, therefore needs both hands could be by blood-collecting needle tube 12
It is pierced into blood sample collection pipe, operation is quite inconvenient.Due to blood sample collection pipe 2
It is inside negative pressure, the speed that blood is flowed into the collecting pipe.It is to be collected to required sample amount, if multitube blood sample need to be gathered, must bimanualness blood-collecting needle tube 12 could be extracted from collecting pipe 2.Now blood-collecting needle tube 12
Outer soft rubber sleeve restores, and encases blood-collecting needle tube, prevents blood outflow pollution environment, the intubation before then repeating in conduit；If need not draw blood again, puncture needle tubing 11 on human body must be first extracted, then pull out collecting pipe 2
Upper blood-collecting needle tube 12.This vacuum blood sampler is due to blood taking needle 1 and the split of collecting pipe 2 construction as can be seen here, and blood collection procedure need to care for conduit 13 simultaneously
Two needle tubing, cause complex operation cumbersome, multiple operating procedures even need both hands and also need to impose certain and just right power that the extraction and insertion of needle tubing could be completed, and the needle tubing to other end now can not be just cared for, so involving again needs the cooperating of more than one medical personnel.The presence of the cumbersome operating procedure of this complexity and two needle tubing,
Medical personnel's workload and psychological burden are virtually added, under the big scene of limb activity amplitude, maloperation is easily produced suffering from unconsciousness, restless, disoperative patient and patient infant.And exposed puncture needle tubing 11 easily pollutes environment, also easily accidentally injure medical worker and cause serious blood to pollute.
Invention is constituted
It is an object of the invention to overcome weak point of the prior art, and environment will not be polluted, will not accidentally injure the monoblock type vacuum blood sampler with needle tip protection sleeve of medical worker by providing a kind of structure simplification, puncture needle tubing that is easy, extracting after human body simple to operate.
The purpose of the present invention is realized by following approach.
Monoblock type vacuum blood sampler with needle tip protection sleeve, puncture needle tubing including being accompanied with operation handle etc., hose connector, blood-collecting needle tube and blood sample collection pipe, its composition is characterized by, also include a kind of blood sampling needle stand and a kind of needle tip protection sleeve, blood taking needle seat tool has cylindrical cavity, cylindrical cavity tail end is opened, blood-collecting needle tube is fixed on its front bulkhead and extended rearward in cylindrical cavity, blood sample collection pipe pipe close is preceding can be plugged in the way of plug in the cylindrical cavity, the length of cylindrical cavity is less than the length of blood sample collection pipe, the afterbody for the blood sample collection pipe being plugged in cylindrical cavity is exposed outside cylindrical cavity, there is gap between blood sample collection pipe front end face and cylindrical cavity front bulkhead
A, blood sample collection pipe pipe close aft bulkhead has a sealant that can be pierced through by blood-collecting needle tube rear end, and this sealant thickness is less than gap A
Thickness, there is the connecting structure being adapted with blood sample collection pipe pipe close in cylindrical cavity, its annexation to be formed compared with consolidation that is connected with blood sample collection pipe pipe close, thus blood sample collection Guan Jing constructs loading and takes out cylindrical cavity, vascular puncture needle tubing tube core, hose connector tube core, blood sample collection pipe tube chamber after blood-collecting needle tube tube core and pierced sealant constitutes a kind of blood channel, described needle tip protection sleeve is a kind of hollow rod shape set, its leading section has with puncturing the inner chamber that needle tubing is matched, puncture needle tubing, which contains, to be covered in this inner chamber, needle tip protection sleeve rearward end inner chamber is then containing covering the hose connector that is stretched into from termination thereafter, it is axially extending on the protective case side wall to there is a kind of tail end to be provided with the sliding groove for retreating obstacle, needle tubing is punctured to be connected with hose connector, operation handle is connected and dashed forward with puncturing needle tubing and passed this sliding groove and be exposed at outside protective case, puncture needle tubing and a kind of slide unit that can be slided with respect to protective case retrogressing of operation handle composition, retracted to as the retrogressing of slide unit punctures needle tubing in protective case inner chamber until submerging completely in protective case.
So, increase blood sampling needle stand simultaneously in advance links together blood sample collection pipe with blood sampling needle stand and blood-collecting needle tube, whole blood-taking device is integrally formed construction.Above-mentioned cylindrical cavity constructs the loading and taking-up that not only facilitate blood sample collection pipe with being adapted to for pipe close, be connected the annexation to be formed compared with consolidation with blood sample collection pipe pipe close again simultaneously, the blood sample collection pipe being so conveniently inserted in cylindrical cavity is difficult for drop-off when upright to be come out, and the insertion degree of the blood sample collection pipe from being given in sense of touch installed in cylindrical cavity, so that convenient install.
When actual use, needle tubing will be punctured first to be pierced into human vas, soft extension tube is full of Deng blood, one hand little finger gently presses fixed puncture needle tubing, and remaining four finger pinches blood sampling needle stand, because pipe close sealant is than relatively thin, another hand touches blood sample collection pipe from bottom or blood sampling needle stand is gently pressed from top, blood-collecting needle tube needle point is allowed to pass through fluid sealant, into collecting pipe, until collecting pipe is touched with cylindrical cavity front bulkhead and can not moved onward again；Due to suction function in collecting pipe, blood is flowed rapidly into blood collection tube to after desired sample amount, if multitube blood sample need to be gathered, can be pinched blood sampling needle stand, easily be exited blood sample collection pipe, is inserted into and new is collected blood sampling tube.After blood sampling terminates; first withdraw from people's body end puncture needle pipe; now can pusher operation handle puncture needle tubing is retracted in protective case inner chamber; hereafter blood collection tube is exited again; because blood sampling needle stand is than blood taking needle pipe range; therefore can guarantee that blood-collecting needle tube needle point will not hurt people; and during blood collection tube is changed repeatedly; blood sampling needle stand also acts as insertion guide effect; blood sampling needle point will not pierce people, therefore play safety protection function, while sealing shroud resilience of taking a blood sample is closed; seal blood taking needle tube head, it is to avoid blood pollution.
As can be seen here, to become two body of the prior art discrete and be integrated construction by the present invention, structure simplify and also it is simple to operate easily, push blood sampling needle stand due to that can use by blood-collecting needle tube needle point and pass through fluid sealant, make operation simpler easy；And the intervention of needle tip protection sleeve, allow puncture needle tubing from human body it is direct after be retracted into protective case, it is ensured that puncture needle tubing and neither pollute the environment and will not also accidentally injure medical worker or other staff.
The purpose of the present invention can also be realized by following approach.
When cylindrical cavity and both pipe closes, which are in, is adapted to connection status, blood-collecting needle tube rear end is just in before sealant to be pierced through.
So it is easy to hold the pre-inserted degree of blood-collecting needle tube in the sense of touch of insertion.
The connecting structure of the adaptation has multiple choices, such as barrel chamber internal diameter inside contracts the size mode of rear interference fits, and following one kind are a kind of optimum choices：
The construction being adapted in cylindrical cavity with pipe close is a kind of tactile construction of the circumferentially distributed or symmetrical elastic card of a plurality of inwalls along cylindrical cavity.
It can be a kind of short arc convex clamping point that this elastic card, which touches construction, or this short arc convex clamping point or blood sample collection pipe pipe close are made up of elastomeric material.
This elastic card, which touches construction, can cause the elastic urgent connection status of cylindrical cavity inwall and pipe close, but when applying axial force, blood sample collection pipe can still do with respect to cylindrical cavity and before push away or retreat freely.
This short arc convex clamping point is exactly a kind of convex salient point on cylindrical cavity inwall of dashing forward as its name suggests, and thickness is low shallow and there is arc-shaped transition front and rear side, in order to which creeping for pipe close is passed through.
Other adaptation connecting structure can also separately be increased on the basis of this elastic card touches construction to be used cooperatively to reach more preferable using effect, the following is using cooperatively that one of which optimizes：
The construction being adapted in cylindrical cavity with pipe close is a kind of tactile construction of the circumferentially distributed or symmetrical elastic card of a plurality of inwalls along cylindrical cavity, and another construction being adapted is the L being produced on pipe close outer peripheral face
Shape groove and the prominent salient point being produced on cylindrical cavity inwall, the prominent salient point enter L from the termination of the L shape groove vertical sections positioned at pipe close front end face
Shape groove can simultaneously be slided wherein, when cylindrical cavity inwall and tactile pipe close elastic card, and the prominent salient point has been enter into L
Reach in vertical section in shape groove but not yet the bottom of the vertical section, now blood-collecting needle tube rear end is just in before sealant to be pierced through, after sinciput blood sample collection pipe to blood-collecting needle tube pierces through sealant, the prominent salient point just reaches the bottom of the vertical section, blood sample collection pipe is now rotated, the prominent salient point enters
Cross break section in L shape grooves.
So, L
In shape groove cross break section can be with locked blood sample collection pipe in the axial direction the free degree, make its with respect to syringe can neither before push away and can not retreat.
Blood sample collection pipe can also be connected with cylindrical cavity by this way：
Blood sample collection pipe screw thread is connected in cylindrical cavity, and the construction being adapted is a kind of threaded connection configuration.
Blood sample collection pipe pipe close is made up of seal rubber plug and protection cap, and fluid sealant plug sleeve plug is in collecting pipe tube chamber, and 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.
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 the core bore of sealant, and this core bore internal diameter is more slightly larger than blood sampling sealing shroud external diameter.
So, blood-collecting needle tube band with blood sampling sealing shroud along this core bore penetrate pipe close when, blood sampling sealing shroud by axial compression compress radial distorted dilatating and deformable, just with this core bore inner hole wall extrusion friction, will not more allow blood-collecting needle tube deviate from seal rubber plug.
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.
Blood sampling needle stand is with being contained on the position being adapted in cylindrical cavity along blood sampling that needle stand is axially arranged has a kind of strip grooves as operation window in blood sample collection pipe pipe close, this operation window has two, and Relative distribution is in the both sides of cylindrical cavity.
So blood back can be observed by this operation window, observe the state of blood volume in blood sample collection pipe, also the insert state of observable blood sample collection pipe and insertion degree, can also be when extracting blood sample collection pipe, blood sample collection pipe firmly first is exited backward through this operation window grip pipe close, so as to collect the disengaging of tube body and pipe close when preventing from exiting blood sample collection pipe.
Sliding groove tail end, which retreats obstacle, can prevent the puncture needle tubing of recession from passing protective case.This obstacle that retreats can be that a kind of prominent convex stuck point or sliding groove tail end in sliding groove tail end is closed.
Also include a kind of non-return device, this non-return device is arranged between slide unit and protective case, if being pushed away before the retrogressing slide unit that extremely puncture needle tubing is retracted into protective case inner chamber is reverse will prevent to 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.Hurted sb.'s feelings so as to both ensure that the puncture needle tubing retreated will not be elapsed out again, this vacuum blood collector of the present invention can also be promoted disposable.
It is common in the aciculiform medicine equipment of this non-return device in the prior art, mostly can be using in the present invention.The present invention provides the non-return device of two kinds of optimization herein：
The non-return device is a kind of elastic symmetry closure tongue piece; in the inner chamber of protective case front end; the two closures tongue piece tilts and constitutes a kind of tubaeform; horn mouth is facing forward; loudspeaker tail serrated end backwards is made up of the closure joint portion of closure tongue piece, is punctured needle tubing tail end and was worn this closure closure joint portion of tongue piece and affixed with operation handle through thus serrated end backward from horn mouth.
So, after puncture needle tubing is removed, tongue piece elastic reset forms needle tip and the state on serrated end pinnacle, blocks former puncture barrel outlet.
The non-return device is made up of Elastic buckle and pit, and Elastic buckle is located on protective case, and pit is located on slide unit, retreat slide unit its pit in place just with Elastic buckle clamping, so as to prevent to push away before puncturing needle tubing.
The Elastic buckle is made up of the buckle on elastic suspended tongue and outstanding tongue top, is emptied close to protective case sliding groove tail end along the interval parallel with sliding groove and is allowed this to empty and worn in sliding groove tail end and sliding groove ' U ' shape company, this ' U
' shape center i.e. one elastic suspended tongue of formation, buckle is positioned at this elastic suspended tongue top and dashes forward convex in sliding groove, and pit is located at the root of operation handle, and operation handle is connected by this root with puncturing needle tubing.
Retreat operation handle in place along sliding groove, its pit just with this buckle clamping.
Have two sliding grooves and be symmetrically distributed in protective case both sides, and there are two operation handles to correspond to respectively and be connected through sliding groove and with puncturing needle tubing.
Operation handle pinches ear in one kind, and two be connected jointly with puncturing needle tubing pinch a kind of pair of ear composition and pinch ear operation handle.
This double ear operation handles of pinching provide another mode for being easy to operate.
Also include Paracentesis needle holder, Paracentesis needle holder is located in protective case, puncture needle tubing tail end and be plugged on the Paracentesis needle holder, Paracentesis needle holder is connected by the root of operation handle with operation handle.
Paracentesis needle holder is hollow, punctures needle tubing and is plugged in Paracentesis needle holder leading portion core cavity, and Paracentesis needle holder rear end is provided with a kind of termination being connected with hose connector, and hose connector tube core is connected by Paracentesis needle holder core cavity with puncturing needle tubing tube core.
Further improvement on Paracentesis needle holder is：
Paracentesis needle holder and operation handle Construction integration.
In summary, the present invention has the following advantages that compared with prior art：Change two body of the prior art of the invention is discrete and is integrated construction, and structure simplifies and simple to operate easy, and blood sampling needle stand is pushed by blood-collecting needle tube needle point through fluid sealant due to that can use, and makes operation simpler easy；And the intervention of needle tip protection sleeve, allow puncture needle tubing from human body it is direct after be retracted into protective case, it is ensured that puncture needle tubing and neither pollute the environment and will not also accidentally injure medical worker or other staff.
Brief description of the drawings
Fig. 1 is a kind of vacuum blood collection pipe device blood sample collection pipe insert state schematic diagram in the prior art.
Fig. 2 is that a kind of vacuum blood collection pipe device blood sample collection pipe withdraws from view in the prior art.
Fig. 3 is the outward appearance schematic front view of the monoblock type vacuum blood sampler with needle tip protection sleeve in the embodiment of the present invention one.
Fig. 4 is the structural representation left view of the monoblock type vacuum blood sampler with needle tip protection sleeve in the embodiment of the present invention one.
Fig. 5 is the monoblock type vacuum blood sampler blood-collecting needle tube insert state schematic diagram with needle tip protection sleeve in the embodiment of the present invention one.
Fig. 6 is that the monoblock type vacuum blood sampler blood-collecting needle tube for having needle tip protection sleeve in the embodiment of the present invention one withdraws from view.
Fig. 7 is the structural representation front view of present invention blood sampling needle stand.
Fig. 8 is the structural representation top view of present invention blood sampling needle stand.
Fig. 9 is the structural representation of blood sample collection pipe of the present invention.
Figure 10 is cutaway view Amplified image of the puncture needle component under state of withdrawing from the embodiment of the present invention one.
Figure 11 is outward appearance enlarged drawing of the puncture needle component under state of withdrawing from the embodiment of the present invention one.
Figure 12 is cylinder schematic perspective view after protective case in the embodiment of the present invention one.
Figure 13 is Paracentesis needle holder and operation handle structural representation front view in the embodiment of the present invention one.
Figure 14 is Paracentesis needle holder and operation handle structural representation left view in the embodiment of the present invention one.
Figure 15 is schematic cross-sectional view of the piercing assembly under puncture state in preferred embodiment.
Figure 16 is schematic cross-sectional view of the piercing assembly under state of withdrawing from preferred embodiment.
Figure 17 is cylinder schematic perspective view after protective case in preferred embodiment.
Figure 18 is Paracentesis needle holder and operation handle structural representation front view in preferred embodiment.
Figure 19 is Paracentesis needle holder and operation handle structural representation left view in preferred embodiment.
Figure 20 is Paracentesis needle holder and operation handle structural representation top view in preferred embodiment.
Figure 21 is the structural representation stereogram of blood sample collection protection of pipe lid in preferred embodiment.
Label declaration：
11 puncture the operation handle 161 of 12 blood-collecting needle tube of needle tubing, 13 15 Paracentesis needle holder of the blood sampling sealing shroud of hose connector 14 16
The seal rubber plug of 173 sliding groove of cylinder, 174 elastic suspended tongue, 175 buckle, 2 blood sample collection pipe, 21 sealant, 22 protection cap 23 behind 17 protective case of pit, 171 ends 172
The short arc convex clamping point of 24 core bore 24L shape groove vertical section 26L shape grooves cross breaks section, 3 32 operation window of blood sampling 31 cylindrical cavity of needle stand 33
More description in detail is carried out to the present invention below in conjunction with the accompanying drawings.
Embodiment one：
Reference picture 3, Fig. 4, the monoblock type vacuum blood sampler with needle tip protection sleeve, including puncture needle component, hose connector 13, blood-collecting needle tube
12nd, blood sample collection pipe 2 and a kind of blood sampling needle stand 3.Puncture needle component is made up of puncture needle tubing 11, Paracentesis needle holder 15, operation handle 16 and needle tip protection sleeve 17 etc..Blood sampling needle stand 3
With cylindrical cavity 31, cylindrical cavity tail end is opened, and blood-collecting needle tube 12 is fixed on its front bulkhead and extended rearward in cylindrical cavity 31, blood sample collection pipe 2
Pipe close in the way of plug preceding can be plugged in the cylindrical cavity 31, and the length of cylindrical cavity 31 is less than the length of blood sample collection pipe 2, is plugged on the blood sample collection pipe 2 in cylindrical cavity
Afterbody it is exposed outside cylindrical cavity 31, there is gap A, the pipe close aft bulkhead of blood sample collection pipe 2 has one can be by blood-collecting needle tube 12 between the front end face of blood sample collection pipe 2 and the front bulkhead of cylindrical cavity 31
The sealant 21 that rear end is pierced through, this thickness of sealant 21, which is less than, has the construction being adapted with the pipe close of blood sample collection pipe 2, vascular puncture needle tubing 11 in gap A thickness, cylindrical cavity 31
The tube chamber of blood sample collection pipe 2 after tube core, the tube core of hose connector 13, the tube core of blood-collecting needle tube 12 and pierced sealant 21 constitutes a kind of blood channel.
Reference picture 9, the pipe close of blood sample collection pipe 2 is made up of seal rubber plug 23 and protection cap 22, seal rubber plug 23
Set plug is in collecting pipe tube chamber, and the lid plug of protection cap 22 is on the collecting pipe mouth of pipe and seal rubber plug 23.The front end face of said blood sample collection tube 2 is protection cap front end face.Said blood sample collection tube 2
The sealant 21 of pipe close aft bulkhead is located on seal rubber plug.Sealant thickness is 1.0MM.
Reference picture 7, Fig. 8, cylindrical cavity 31
The interior construction being adapted with pipe close is a kind of two inwalls along cylindrical cavity circumferentially tactile construction of symmetrical elastic card.It is a kind of short arc convex clamping point 33, this short arc convex clamping point 33 that this elastic card, which touches construction,
It is made up of elastomeric material.When the protective case 22 of blood sample collection pipe 2 is touched with this short arc convex clamping point 33 card, the rear end of blood-collecting needle tube 12 is just in before sealant 21 to be pierced through.
Reference picture 7, Fig. 8, blood sampling needle stand 3 with the pipe close of blood sample collection pipe 2 in be contained in cylindrical cavity 31
Along taking a blood sample, needle stand 3 is axially arranged to have a kind of strip grooves as operation window 32 on the position being inside adapted, and this operation window 32 has two, and Relative distribution is in the both sides of cylindrical cavity 31.This operation window 32
Misplace 90 degree and be distributed with above-mentioned short arc convex clamping point 33.
Reference picture 5, Fig. 6, blood-collecting needle tube 12 are coated with blood sampling sealing shroud 14
, blood sample collection pipe pipe close is provided centrally with axially extending to the core bore 24 of sealant 21, and this internal diameter of core bore 24 is more slightly larger than the blood sampling external diameter of sealing shroud 14.So, blood-collecting needle tube 12 is with blood sampling sealing shroud
14 along this core bore 24 penetrate pipe close when, blood sampling sealing shroud 14 by axial compression compress radial distorted dilatating and deformable, just with this core bore 24
Inner hole wall extrusion friction, will not more allow blood-collecting needle tube to deviate from seal rubber plug.
Reference picture 10, Figure 11, Figure 12, Figure 13, Figure 14, puncture needle component, described needle tip protection sleeve 17
It is a kind of hollow rod shape set, is planted by cylinder end 171 and rear cylinder 172 and affixed and constitute.Cylinder end 171 leading portion point contracts with puncturing the inner chamber that needle tubing is matched.Cylinder 172 afterwards
It is a kind of Cylinder shape constructional element, with pre-and post perforative cylindrical cavity, needle tubing 11 is punctured containing covering in this inner chamber, while the inner chamber is also containing the hose connector 13 for covering Paracentesis needle holder 15 and being stretched into from termination thereafter.Paracentesis needle holder 15
Core hollow, its front end is then affixed with hose connector 13 with puncturing the grafting of needle tubing 11, rear end.It is axially extending on the side wall of cylinder 172 afterwards to have a kind of sliding groove 173 of tail end closing, operation handle 16
Laterally dash forward and penetrate in this sliding groove 173 and affixed integral with Paracentesis needle holder 15.Puncture needle tubing 11, Paracentesis needle holder 15, operation handle 16 and hose connector 13 constitute one kind can be with respect to protective case
17 retreat the slide unit slided.Retracted to as the retrogressing of slide unit punctures needle tubing 11 in the inner chamber of protective case 17 until submerging protective case 17 completely
It is interior and by non-return device limitation and can not before push away.The non-return device is made up of Elastic buckle and pit 161.The Elastic buckle is made up of the buckle 175 on elastic suspended tongue 174 and outstanding tongue top, close to protective case sliding groove
173 tail ends are emptied along the interval parallel with sliding groove 173 and allow this to empty and even worn in sliding groove tail end and sliding groove ' U ' shape, and this ' U ' shape center is one elastic suspended tongue 174 of formation, buckle 175
Positioned at this top of elastic suspended tongue 174 and prominent convex in sliding groove 173, pit 161 is located at the root of operation handle 16.Retreat slide unit its pit 161 in place just with Elastic buckle 175
Clamping, so as to prevent to push away before puncturing needle tubing 11.
When actual use, needle tubing 11 being punctured first and will be pierced into human vas, and wait blood to be full of soft extension tube, a hand little finger gently presses fixed puncture needle tubing 11
, remaining four refers to and pinches blood sampling needle stand 3, and because pipe close sealant 21 is than relatively thin, another hand touches blood sample collection pipe 2 from bottom, allows the needle point of blood-collecting needle tube 12 to pass through sealant 21
Into in collecting pipe, until collecting pipe is touched and can not moved onward again with the front bulkhead of cylindrical cavity 31；Due to suction function in collecting pipe, blood flows rapidly into blood collection tube 2
In to after desired sample amount, if multitube blood sample need to be gathered, blood sampling needle stand 3 can be pinched, and blood sample collection pipe 2 is pinched through operation window 32
It is easily exited, new collection blood sampling tube is inserted into.Blood sampling terminate after, first withdraw from people's body end puncture needle pipe 11, now can pusher operation handle 16 puncture needle tubing 11 is retracted to protective case 17
In inner chamber, then blood collection tube 2 is exited, because blood sampling needle stand 3 is longer than blood-collecting needle tube 12, therefore can guarantee that the needle point of blood-collecting needle tube 12 will not hurt people, and during blood collection tube is changed repeatedly, needle stand 3 of taking a blood sample
Also act as insertion guide effect, blood sampling needle point will not pierce people, therefore play safety protection function, while the resilience of sealing shroud 14 of taking a blood sample is closed, seal blood-collecting needle tube 12, it is to avoid blood pollution.
The not described part of the present embodiment is same as the prior art.
Most preferred embodiment：
Reference picture 15, Figure 16, Figure 17, Figure 18, Figure 19, Figure 20
, the monoblock type vacuum blood sampler with needle tip protection sleeve, in puncture needle component therein
Have two sliding grooves 173 and be symmetrically distributed in the both sides of protective case 17, and have two operation handles 16 correspond to respectively through sliding groove 173 and with Paracentesis needle holder 15 is affixed and Construction integration.Operation handle 16 pinches ear in one kind, and two be connected jointly with Paracentesis needle holder 15 pinch a kind of pair of ear composition and pinch ear operation handle.This double ear operation handles of pinching provide another mode for being easy to operate.
Reference picture 21
The construction being adapted in cylindrical cavity with pipe close is a kind of tactile construction of the circumferentially distributed or symmetrical elastic card of a plurality of inwalls along cylindrical cavity, it is a kind of short arc convex clamping point that this elastic card, which touches construction, and this short arc convex clamping point and blood sample collection pipe pipe close are made up of elastomeric material.Another construction being adapted is to be produced on pipe close protection cap
L shapes groove on 22 outer peripheral faces and the prominent salient point being produced on cylindrical cavity inwall, the prominent salient point enter L from the termination of the L shape grooves vertical section 25 positioned at pipe close front end face
Shape groove can simultaneously be slided wherein, when cylindrical cavity inwall and tactile pipe close protection cap elastic card, and the prominent salient point has been enter into the vertical section 25 in L shape grooves but not yet reaches the bottom of the vertical section 25, now blood-collecting needle tube 12
Rear end is just in before sealant 21 to be pierced through, after sinciput blood sample collection pipe 2 to blood-collecting needle tube 12 pierces through sealant 21, and the prominent salient point just reaches the vertical section 25
Bottom, now rotate blood sample collection pipe 2, the cross break section 26 that the prominent salient point enters in L shape grooves.So, in L shapes groove cross break section 26 and the cooperation of the prominent salient point can be with locked blood sample collection pipe 2
The free degree in the axial direction, make its relative blood sampling needle stand 3 can neither before push away and can not retreat.
The not described part of the present embodiment is identical with embodiment one.
Claims (22)
- Monoblock type vacuum blood sampler with needle tip protection sleeve, puncture needle tubing including being accompanied with operation handle etc., hose connector, blood-collecting needle tube and blood sample collection pipe, it is characterized in that, also include a kind of blood sampling needle stand and a kind of needle tip protection sleeve, blood taking needle seat tool has cylindrical cavity, cylindrical cavity tail end is opened, blood-collecting needle tube is fixed on its front bulkhead and extended rearward in cylindrical cavity, blood sample collection pipe pipe close is preceding can be plugged in the way of plug in the cylindrical cavity, the length of cylindrical cavity is less than the length of blood sample collection pipe, the afterbody for the blood sample collection pipe being plugged in cylindrical cavity is exposed outside cylindrical cavity, there is gap A between blood sample collection pipe front end face and cylindrical cavity front bulkhead, blood sample collection pipe pipe close aft bulkhead has a sealant that can be pierced through by blood-collecting needle tube rear end, this sealant thickness is less than gap A thickness, have in cylindrical cavity and be adapted connecting structure with blood sample collection pipe pipe close, its annexation to be formed compared with consolidation that is connected with blood sample collection pipe pipe close, thus blood sample collection Guan Jing constructs loading and takes out cylindrical cavity, vascular puncture needle tubing tube core, hose connector tube core, blood sample collection pipe tube chamber after blood-collecting needle tube tube core and pierced sealant constitutes a kind of blood channel, described needle tip protection sleeve is a kind of hollow rod shape set, its leading section has with puncturing the inner chamber that needle tubing is matched, puncture needle tubing, which contains, to be covered in this inner chamber, Needle tip protection sleeve rearward end inner chamber is then containing covering the hose connector that is stretched into from termination thereafter; it is axially extending on the protective case side wall to there is a kind of tail end to be provided with the sliding groove for retreating obstacle; needle tubing is punctured to be connected with hose connector; operation handle is connected and dashed forward with puncturing needle tubing and passed this sliding groove and be exposed at outside protective case; needle tubing and a kind of slide unit that can be slided with respect to protective case retrogressing of operation handle composition are punctured, is retracted to as the retrogressing of slide unit punctures needle tubing in protective case inner chamber until submerging completely in protective case.
- Monoblock type vacuum blood sampler according to claim 1 with needle tip protection sleeve, it is characterised in that when cylindrical cavity and both pipe closes, which are in, is adapted to connection status, blood-collecting needle tube rear end is just in before sealant to be pierced through.
- Monoblock type vacuum blood sampler according to claim 1 with needle tip protection sleeve, it is characterised in that the construction being adapted in cylindrical cavity with pipe close is a kind of tactile construction of the circumferentially distributed or symmetrical elastic card of a plurality of inwalls along cylindrical cavity.
- Monoblock type vacuum blood sampler according to claim 3 with needle tip protection sleeve, it is characterised in that it can be a kind of short arc convex clamping point that this elastic card, which touches construction, or this short arc convex clamping point or blood sample collection pipe pipe close are made up of elastomeric material.
- Monoblock type vacuum blood sampler according to claim 4 with needle tip protection sleeve; it is characterized 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 there is arc-shaped transition front and rear side, in order to which creeping for pipe close is passed through.
- Monoblock type vacuum blood sampler according to claim 1 with needle tip protection sleeve, it is characterized in that, the construction being adapted in cylindrical cavity with pipe close is a kind of tactile construction of the circumferentially distributed or symmetrical elastic card of a plurality of inwalls along cylindrical cavity and another combination for being adapted construction, the prominent salient point that another construction being adapted is the L-shaped groove being produced on pipe close outer peripheral face and is produced 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 slided wherein, when cylindrical cavity inwall and pipe close elastic card are touched, the prominent salient point has been enter into the vertical section in L-shaped groove but not yet reaches the bottom of the vertical section, now blood-collecting needle tube rear end is just in before sealant to be pierced through, after sinciput blood sample collection pipe to blood-collecting needle tube pierces through sealant, the prominent salient point just reaches the bottom of the vertical section, now rotate blood sample collection pipe, the cross break section that the prominent salient point enters in L-shaped groove.
- Monoblock type vacuum blood sampler according to claim 1 with needle tip protection sleeve, it is characterised in that blood sample collection pipe screw thread is connected in cylindrical cavity, the construction being adapted is a kind of threaded connection configuration.
- The monoblock type vacuum blood sampler with needle tip protection sleeve according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7; it is characterized in that; blood sample collection pipe pipe close is made up of seal rubber plug and protection cap; fluid sealant plug sleeve plug is in collecting pipe tube chamber, and protection cap lid plug is on the collecting pipe mouth of pipe and seal rubber plug.
- The monoblock type vacuum blood sampler with needle tip protection sleeve according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7; it is characterized in that; blood sample collection pipe pipe close is made up of seal rubber plug and protection cap; fluid sealant plug sleeve plug is in collecting pipe tube chamber; protection cap lid plug is on the collecting pipe mouth of pipe and seal rubber plug, and the construction being adapted with cylindrical cavity is generally located in protection cap.
- Monoblock type vacuum blood sampler according to claim 1 with needle tip protection sleeve; it is characterized in that; 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 the core bore of sealant, and this core bore internal diameter is more slightly larger than blood sampling sealing shroud external diameter.
- Monoblock type vacuum blood sampler according to claim 1 with needle tip protection sleeve, it is characterised in that blood sample collection pipe pipe close sealant thickness is 3-0.5MM, preferably 1.5-0.5MM.
- Monoblock type vacuum blood sampler according to claim 1 with needle tip protection sleeve; it is characterized in that; blood sampling needle stand is with being contained on the position being adapted in cylindrical cavity along blood sampling that needle stand is axially arranged has a kind of strip grooves as operation window in blood sample collection pipe pipe close; this operation window has two, and Relative distribution is in the both sides of cylindrical cavity.
- Monoblock type vacuum blood sampler according to claim 1 with needle tip protection sleeve; it is characterized in that; sliding groove tail end, which retreats obstacle, can prevent the puncture needle tubing of recession from passing protective case; this obstacle that retreats can be that a kind of prominent convex stuck point or sliding groove tail end in sliding groove tail end is closed.
- Monoblock type vacuum blood sampler according to claim 1 with needle tip protection sleeve; it is characterized in that; also include a kind of non-return device; this non-return device is arranged between slide unit and protective case, if being pushed away before the retrogressing slide unit that extremely puncture needle tubing is retracted into protective case inner chamber is reverse will prevent to contact with this non-return device.
- Monoblock type vacuum blood sampler according to claim 14 with needle tip protection sleeve; it is characterized in that; the non-return device is a kind of elastic symmetry closure tongue piece; in the inner chamber of protective case front end; the two closures tongue piece tilts and constitutes a kind of tubaeform; forward, loudspeaker tail serrated end backwards is made up of horn mouth the closure joint portion of closure tongue piece, is punctured needle tubing tail end and was worn this closure closure joint portion of tongue piece and affixed with operation handle through thus serrated end backward from horn mouth.
- Monoblock type vacuum blood sampler according to claim 14 with needle tip protection sleeve; it is characterized in that; the non-return device is made up of Elastic buckle and pit; Elastic buckle is located on protective case; pit is located on slide unit; retreat slide unit its pit in place just with Elastic buckle clamping, so as to prevent to push away before puncturing needle tubing.
- Monoblock type vacuum blood sampler according to claim 16 with needle tip protection sleeve, it is characterized in that, the Elastic buckle is made up of the buckle on elastic suspended tongue and outstanding tongue top, emptied close to protective case sliding groove tail end along the interval parallel with sliding groove and allow this empty sliding groove tail end and sliding groove ' U' shapes company wears, this ' U' shapes center i.e. one elastic suspended tongue of formation, buckle is located at this elastic suspended tongue top and prominent convex in sliding groove, pit is located at the root of operation handle, operation handle is connected by this root with puncturing needle tubing, along the operation handle of sliding groove retrogressing in place, its pit just with this buckle clamping.
- Monoblock type vacuum blood sampler according to claim 1 with needle tip protection sleeve, it is characterised in that have two sliding grooves and be symmetrically distributed in protective case both sides, and there are two operation handles to correspond to respectively and run through sliding groove and be connected with puncturing needle tubing.
- Monoblock type vacuum blood sampler according to claim 18 with needle tip protection sleeve, it is characterised in that operation handle pinches ear in one kind, two be connected jointly with puncturing needle tubing pinch a kind of pair of ear composition and pinch ear operation handle.
- Monoblock type vacuum blood sampler according to claim 1 with needle tip protection sleeve; characterized in that, also including Paracentesis needle holder, Paracentesis needle holder is located in protective case; puncture needle tubing tail end to be plugged on the Paracentesis needle holder, Paracentesis needle holder is connected by the root of operation handle with operation handle.
- Monoblock type vacuum blood sampler according to claim 20 with needle tip protection sleeve; it is characterized in that; Paracentesis needle holder is hollow; needle tubing is punctured to be plugged in Paracentesis needle holder leading portion core cavity; Paracentesis needle holder rear end is provided with a kind of termination being connected with hose connector, and hose connector tube core is connected by Paracentesis needle holder core cavity with puncturing needle tubing tube core.
- Monoblock type vacuum blood sampler according to claim 20 with needle tip protection sleeve, it is characterised in that Paracentesis needle holder and operation handle Construction integration.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/083565 WO2014063344A1 (en) | 2012-10-26 | 2012-10-26 | Integral vacuum blood sampling apparatus with needle tip protective sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104470434A true CN104470434A (en) | 2015-03-25 |
| CN104470434B CN104470434B (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280074562.XA Active CN104470434B (en) | 2012-10-26 | 2012-10-26 | There is the monoblock type vacuum blood sampler of needle tip protection sleeve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104470434B (en) |
| WO (1) | WO2014063344A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107714054A (en) * | 2017-11-16 | 2018-02-23 | 成都瑞琦科技实业股份有限公司 | It is exclusively used in the mechanism protected vein blood taking needle |
| CN113143328A (en) * | 2020-12-22 | 2021-07-23 | 上海市闵行区中心医院 | Noninvasive exfoliated gastric cell and nucleic acid sampling system and using method thereof |
| CN113180658A (en) * | 2021-04-26 | 2021-07-30 | 山西医科大学 | Large animal percutaneous puncture femoral artery catheterization blood sampling device |
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| KR102349711B1 (en) | 2016-08-24 | 2022-01-11 | 벡톤 디킨슨 앤드 컴퍼니 | device for attached blood flow |
| CN107198531A (en) * | 2017-04-27 | 2017-09-26 | 王祖扬 | A kind of needle automatic retracting formula blood taking needle |
| CN108338793B (en) * | 2018-04-16 | 2023-09-19 | 浙江百获健康科技有限公司 | Intravenous blood taking needle |
| IT201800010602A1 (en) * | 2018-11-27 | 2020-05-27 | Mauro Pepe | MULTIPURPOSE SAFETY KIT FOR THE COLLECTION OF BIOLOGICAL LIQUIDS |
| CN113100763B (en) * | 2021-04-06 | 2023-05-16 | 首都医科大学宣武医院 | Automatic needle retracting and self-destroying safety intravenous blood taking needle |
| CN113425392A (en) * | 2021-07-16 | 2021-09-24 | 苏州朗特斯医疗科技有限公司 | Injection needle with multiple protection for endoscope |
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| CN113180658B (en) * | 2021-04-26 | 2022-07-01 | 山西医科大学 | Large animal percutaneous puncture femoral artery catheterization blood sampling device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014063344A1 (en) | 2014-05-01 |
| CN104470434B (en) | 2016-10-12 |
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Effective date of registration: 20230911 Address after: S5 # Factory Building, Medical Equipment Industrial Park, Industrial New Area, No. 66 Tingzhou Avenue South Road, Cewu Town, Changting County, Longyan City, Fujian Province, 366399 Patentee after: Conlite (Changting) Medical Equipment Co.,Ltd. Address before: No. 27, Lane 45, Kaohsiung Road, Huangpu District, Shanghai, 200011 Patentee before: Zhang Jianming |
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