WO2014019198A1 - Dispositif de collecte de sang sous vide de type seringue avec embout protecteur pour aiguille - Google Patents

Dispositif de collecte de sang sous vide de type seringue avec embout protecteur pour aiguille Download PDF

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Publication number
WO2014019198A1
WO2014019198A1 PCT/CN2012/079593 CN2012079593W WO2014019198A1 WO 2014019198 A1 WO2014019198 A1 WO 2014019198A1 CN 2012079593 W CN2012079593 W CN 2012079593W WO 2014019198 A1 WO2014019198 A1 WO 2014019198A1
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WO
WIPO (PCT)
Prior art keywords
needle
tube
blood
blood collection
syringe
Prior art date
Application number
PCT/CN2012/079593
Other languages
English (en)
Chinese (zh)
Inventor
张建铭
Original Assignee
Zhang Jianming
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhang Jianming filed Critical Zhang Jianming
Priority to PCT/CN2012/079593 priority Critical patent/WO2014019198A1/fr
Priority to CN201280074560.0A priority patent/CN104470432B/zh
Publication of WO2014019198A1 publication Critical patent/WO2014019198A1/fr

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Classifications

    • 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
    • A61B5/14—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
    • A61B5/1444—Safety means, e.g. for locking cannula
    • 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
    • A61B5/150519—Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
    • 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
    • A61B5/150374—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

Definitions

  • the invention relates to a human external vacuum blood collection device for clinical medical treatment, in particular to a syringe vacuum blood collection device with needle tip protection.
  • a vacuum blood collection tube device of the prior art is shown in Fig. 1 and Fig. 2, and includes a blood collection needle and a blood sample collection tube.
  • One end of the blood collection needle is a vascular puncture needle 11 and the other end is provided with a rubber sleeve blood collection needle 12, and the middle is connected by a PVC catheter.
  • the device When the device is used for collecting blood, first remove the protective sleeve on the two needles and puncture the needle into the needle 11 Pierce the patient's arm vein, wait for the blood to enter the blood collection tube, and the medical staff immediately press the needle handle of the blood vessel needle 11 with the little finger to prevent the needle tube from falling off; because the blood sample collection tube 2
  • the sealing rubber plug is very thick, and the blood collecting needle 12 has a large angle of the bevel, the needle tip is blunt, and the blood collecting needle 12 is tight when the sealing tube is subjected to axial compression, so the hands need to be used to take the blood collecting needle 12 Piercing into the blood sample collection tube is quite inconvenient to operate.
  • the inside is negative pressure and the blood flows into the collection tube at a faster rate.
  • the blood collection needle 12 can be pulled out from the collection tube 2 by both hands.
  • the blood collection tube 12 The outer soft rubber sleeve is restored, and the blood collection needle tube is wrapped to prevent the blood in the catheter from flowing out to pollute the environment, and then the previous intubation operation is repeated; if it is not necessary to draw blood, the human needle on the human body must be pulled out first. Then, put on the needle tip sheath, and then remove the blood collection needle 12 on the collection tube 2 .
  • the object of the present invention is to overcome the deficiencies in the prior art, and to provide a syringe-type vacuum blood collection device with a needle tip protection, which is simple in structure, simple in operation, and safe in protecting the puncture needle tube after the puncture is completed.
  • the object of the present invention is achieved by the following route.
  • Needle-type vacuum blood collection device with needle tip protection comprises a vascular puncture needle tube, a blood collection needle tube and a blood sample collection tube, and the main point of the composition is that the utility model further comprises a syringe tube, and the tail end of the blood vessel puncture needle tube is eccentrically inserted on the puncture needle holder in a manner close to the outer circumferential surface of the syringe barrel,
  • the needle tip of the needle tube and most of the needle tube are exposed outside the barrel, and the inside of the barrel has a sealed cavity and a cylindrical cavity, wherein the sealing cavity is located in front of the cylindrical cavity, and the die of the vascular puncture needle is connected with the sealing cavity
  • the front end of the blood collection needle tube is fixed on the wall of the sealing chamber, and the rear end and the needle tube are mostly extended backward and inserted into the tube plug of the blood sample collection tube, and the tube of the blood collection needle tube communicates with the sealing chamber, and the tube shape is empty
  • the cavity is located behind the sealed cavity and the
  • the tail end is provided with a sliding groove with a retreating obstacle, and the puncture needle pushing handle protrudes out of the sliding groove and is exposed outside the barrel, and the axial length of the inner cavity of the syringe is larger than the length of the puncture needle tube exposed outside the syringe, and the puncture needle tube
  • the puncture needle holder, the blood collection needle tube and even the collection tube form a sliding member that can slide back relative to the syringe, and retracts into the inner cavity of the syringe with the retracting needle of the sliding member.
  • the vascular puncture needle tube, the blood collection needle tube and the blood sample collection tube are rigidly coupled by a syringe, so that the three are not only integrally constructed but also constitute a traditional syringe structure, the structure is simplified, the holding operation is convenient, and the operation process is the same as that of the traditional syringe. The operation is extremely similar.
  • the puncture needle holder and the puncture needle can be pushed along the sliding groove until the puncture needle tube is completely immersed in the syringe, and the syringe is used as a protective sleeve.
  • the retraction obstacle at the end of the sliding groove can prevent the retracted puncture needle seat and the puncture needle from passing through the syringe.
  • the backlash can be a snap point protruding at the end of the sliding slot or a closed end of the sliding slot.
  • the object of the present invention can also be achieved by the following means.
  • a backstop that is mounted between the sliding member and the barrel, and the sliding member that retracts to retract the needle into the barrel lumen will resist contact with the backstop if pushed forward.
  • the sliding member that is retracted in position cannot be pushed forward due to the blocking of the check device. Therefore, it is ensured that the retracted puncture needle can no longer be pulled out, and the syringe vacuum blood collection device of the present invention can be used for one-time use.
  • Such backstop devices are common in prior art needle medical devices and are mostly applicable to the present invention.
  • the present invention provides two optimized backstop devices:
  • the backstop device is an elastic symmetric closing tongue which is installed in the inner cavity of the syringe in front of the puncture needle seat, and the end of the puncture needle is passed through the closing joint of the closing tongue and fixed on the puncture needle seat.
  • the backstop device is composed of an elastic buckle and a concave hole, and the elastic buckle is located on the syringe barrel, and the concave hole is located on the sliding member, and the sliding member that is retracted into position has the concave hole just engaged with the elastic buckle, thereby preventing the puncture needle tube from being pushed forward.
  • the elastic buckle is composed of a elastic suspension tongue and a buckle at the top end of the tongue.
  • the tail end of the sliding groove of the cylinder is hollowed out at a distance parallel to the sliding groove and is hollowed out at the end of the sliding groove and the sliding groove 'U' Shaped wear, this 'U
  • the center of the shape forms a resilient suspension tongue, and the buckle is located at the top end of the elastic suspension tongue and protrudes in the sliding groove, and the concave hole is located on the push handle of the puncture needle holder.
  • the puncture needle holder push back in position along the sliding groove, and the recess is just engaged with the buckle.
  • a vascular puncture needle disposed adjacent to the outer circumferential surface of the barrel and extending forward is parallel to the center of the syringe.
  • the sealed cavity at the front of the syringe is a blood returning cavity, and the outer peripheral surface of the syringe has a see-through portion for observing blood return at a position matching the sealing cavity.
  • the front end portion of the syringe has a wedge shape which is extended downwardly and downwardly.
  • the blood vessel puncture needle tube is fixed to the needle barrel at the lower end of the wedge shape, and the see-through portion of the blood returning body can be observed on the inclined surface of the wedge shape.
  • the upper end of the wedge-shaped bevel intersects the outer peripheral surface of the barrel, and the lower end of the wedge-shaped bevel forms a small boss A near the outer circumferential surface of the barrel.
  • the end of the vascular puncture needle is fixed to the syringe through the boss A.
  • the wedge-shaped bevel is facing the operator who is leaning over and is easy to observe.
  • the see-through portion can be made of a transparent material.
  • the back cover of the sealing chamber has a small boss B, and the front end of the blood collecting needle tube is fixed on the boss B.
  • the blood collection needle is concentrically arranged with the syringe and extends rearward along the center of the syringe.
  • the blood collection needle tube is covered with a blood collection sealing sleeve, and the blood sample collection tube tube plug center is provided with a core hole extending axially to the sealing layer, and the inner diameter of the core hole is slightly larger than the outer diameter of the blood collection sealing sleeve.
  • the blood collection sealing sleeve is subjected to the axial compression compression and the radial distortion expansion deformation, which is just pressed and rubbed against the inner hole wall of the core hole, and the blood collection needle tube is not allowed. Take out the blood sample collection tube plug.
  • the blood sample collection tube plug sealing layer has a thickness of 3-0.5 MM, preferably 1.5-0.5 MM.
  • the cylindrical cavity has a configuration adapted to the blood sample collection tube plug, which not only facilitates the loading and unloading of the blood sample collection tube, but also forms a tight connection with the blood sample collection tube plug. relationship.
  • a further optimization of this configuration may be such that the blood sample collection tube is inserted into the cylindrical cavity and the adapted configuration is a dimensionally transitionally coupled configuration.
  • the inner wall of the cylindrical cavity is symmetrically disposed circumferentially symmetrically with the elastic contact of the blood sample collection tube plug, and when the two are in the contact state, the rear end of the blood collection needle is just to be pierced. Before the sealing layer.
  • the elastic snap configuration can be a short arc cam or the blood sample collection tube plug is made of a resilient material.
  • the elastic snap-in configuration can cause an elastic tight connection between the inner wall of the cylindrical cavity and the plug, but the blood sample collection tube can still be pushed forward or backward relative to the cylindrical cavity when an axial force is applied.
  • Such short arc convex card points are bumps protruding from the inner wall of the cylindrical cavity, the thickness is low and the front and rear sides have curved transitions to facilitate the crawling of the pipe plug.
  • the configuration in the cylindrical cavity that fits the plug is a plurality of elastic snap contacts that are circumferentially distributed or symmetrically distributed along the inner wall of the cylindrical cavity, and another suitable configuration is made in the tube.
  • L on the outer circumference of the plug a groove and a projecting point formed on the inner wall of the cylindrical cavity, the protruding point entering from the end of the vertical section of the L-shaped groove at the front end face of the pipe plug
  • the groove can slide therein, and when the inner wall of the cylindrical cavity is elastically caught by the pipe plug, the protruding point has entered L In the vertical section of the shaped groove but not yet reaching the bottom end of the vertical section, the rear end of the blood collection needle tube is just before the sealing layer to be pierced, and after the current blood sample collection tube to the blood collection needle tube pierces the sealing layer, The protruding point just reaches the bottom end of the vertical section, at this time, the blood sample collection tube is rotated, and the protruding point enters A cross-section in an
  • the blood sample collection tube is threaded into the cylindrical cavity and the adapted configuration is a threaded connection configuration.
  • the blood sample collection tube plug is composed of a sealing rubber plug and a protective cover, the sealing rubber plug is plugged in the collecting tube lumen, and the protective cover is plugged on the collecting tube nozzle and the sealing rubber plug.
  • the configuration adapted to the cylindrical cavity is generally provided on the protective cover.
  • the length of the cylindrical cavity is less than the length of the blood sample collection tube, and the tail of the blood sample collection tube nested in the cylindrical cavity is exposed outside the cylindrical cavity.
  • a contact surface is disposed on the outer peripheral surface of the side of the needle barrel adjacent to the vascular puncture needle tube, and the bottom surface of the contact table has a concave shape or a concave curved shape which is adapted to the elbow of the human body.
  • the contact table facilitates the contact between the syringe and the human body, and increases the friction between the syringe and the human skin, so that the syringe is not easily slipped.
  • a flexible applicator is disposed on the outer peripheral surface of the side of the needle tube adjacent to the vascular puncture needle tube.
  • the soft applicator is fixed to the syringe, and has wings on both sides, and the bottom surface of the wing is a flat shape or a A concave curved shape that fits the elbow of the human body.
  • the application of the blade facilitates the contact between the syringe and the human body, and increases the friction between the syringe and the human skin, so that the syringe is not easily slipped.
  • the present invention has the following advantages over the prior art: the structure is simplified, the holding operation is convenient, and the operation process is extremely similar to the operation of the conventional syringe, and the operation is minimized.
  • the workload and psychological burden of medical staff even in the case of patients with unconsciousness, incitement, uncooperative patients and infants and children with large physical activity, are not prone to misuse, thus improving the safety of operation and Success.
  • the further involvement of the security structure Thereby, it is ensured that the retracted puncture needle tube is immersed in the protective sleeve without stabbing the person, and the single use of the syringe type vacuum blood collection device according to the present invention can also be promoted.
  • FIG. 1 is a schematic view showing the insertion state of a blood sample collection tube of a vacuum blood collection tube apparatus in the prior art.
  • Fig. 2 is a schematic view showing the state in which the blood sample collection tube of the vacuum blood collection tube device is withdrawn in the prior art.
  • Fig. 3 is a perspective view showing the appearance of a needle-type vacuum blood collection device having a needle tip protection according to the present invention.
  • Fig. 4 is a schematic cross-sectional front view showing the structure of a syringe type vacuum blood collection device having a needle tip protection according to the present invention.
  • Fig. 5 is a schematic cross-sectional plan view showing the structure of a syringe type vacuum blood collection device having a needle tip protection according to the present invention.
  • Fig. 6 is a view showing the state after blood collection of the needle-type vacuum blood collection device with needle tip protection according to the present invention.
  • Fig. 7 is a schematic cross-sectional front view showing the structure of a front end cover in a needle-type vacuum blood collection device having a needle tip protection according to the present invention.
  • Figure 8 is a schematic cross-sectional left side view showing the structure of the front end cover in the needle-type vacuum blood collection device with needle tip protection of the present invention.
  • a needle-type vacuum blood collection device with needle tip protection including a vascular puncture needle 11 and a blood collection needle tube 12, blood sample collection tube 2 and syringe 3,
  • the syringe 3 is a hollow cylindrical shell, made of medical transparent material
  • the front end cover 6 The front end portion has a wedge shape which is downwardly extended, and the upper end of the wedge-shaped inclined surface intersects with the outer circumferential surface of the barrel, and the downward end of the wedge-shaped inclined surface is near the outer circumferential surface of the barrel (ie, near the inner side edge of the housing)
  • Position forms a small boss A31 the boss A31 is provided with a puncture needle in the center.
  • the barrel 3 has a sealed cavity 32 and a cylindrical cavity 33 therein, wherein the sealed cavity 32 Located at the front end of the barrel, the wick of the puncture needle 11 communicates with the sealed chamber 32.
  • the puncture hub 13 is a separate component from the syringe 3 and is made of medical transparent material and placed in the syringe 3
  • the inner cavity of the front end of the inner cavity is a sealed cavity 32, and the rear side of the rear wall of the sealing cavity 32 has a small boss B131, and the front end of the blood collection needle 12 is fixed on the boss B131.
  • the upper end, the rear end and the needle tube extend mostly rearwardly and are inserted into the plug of the blood sample collection tube 2, and the wick of the blood collection needle tube 12 communicates with the sealed chamber 32, and the blood collection needle tube 12 is coaxial with the cylindrical cavity 33.
  • Blood collection needle 12 The outer cover is covered with a blood collection sealing sleeve 15.
  • the center of the blood sample collection tube plug is provided with a core hole extending axially to the sealing layer 21, and the inner diameter of the core hole is slightly larger than the outer diameter of the blood collection sealing sleeve 15.
  • the blood collection tube 12 With the same blood collection sealing sleeve 15
  • the blood collection sealing sleeve 15 is subjected to axial compression and compression, and is radially twisted and expanded and deformed, and just squeezes and rubs against the inner hole wall of the core hole, and does not allow the blood collection needle tube 12 Take out the blood sample collection tube plug.
  • the cylindrical cavity 33 is located behind the sealed chamber 32 and its rear end is open, and the blood sample collection tube 2 is plugged in the front insert sleeve in the cylindrical cavity 33, and the cylindrical cavity 32
  • the length of the blood sample collection tube 2 is smaller than the length of the blood sample collection tube 2, and the tail of the blood sample collection tube 2 housed in the cylindrical cavity 32 is exposed outside the cylindrical cavity.
  • the blood sample collection tube plug is made of a sealing plug 22 and a protective cover 23
  • the sealing plug 22 is sleeved in the collecting tube lumen
  • the protective cover 23 is plugged on the collecting tube nozzle and the sealing rubber plug
  • the blood sample collecting tube 2 has a blood collecting needle 12 rear end Pierced sealing layer 21
  • the sealing layer has a thickness of 1.5 mm
  • the cylindrical cavity 33 of the front end surface of the blood sample collection tube 2 has a space for accommodating the blood sample collection tube 2 which is pushed forward by the sealing layer 21, and the cylindrical cavity 33
  • the inner wall is symmetrically disposed circumferentially symmetrically with the elastic contact of the blood sample collection tube 2 protection cover 23, and when the two are in the state of the card contact, the blood collection needle 12 The rear end is just in front of the sealing layer to be pierced.
  • the elastic snap contact structure is a short arc convex click point 34, the short arc convex click point 34 and the protective cover 23 Made of elastic material.
  • the puncture needle tube die, the sealing cavity, the blood collection needle tube die, and the blood sample collection tube lumen after being pierced by the sealing layer constitute a blood channel.
  • a sliding groove 36 is defined axially extending on the side wall of the syringe 3, and the sliding needle pushing handle 132 protrudes out of the sliding groove. 36 and exposed outside the syringe 3.
  • the sliding groove 36 extends from the front of the barrel 3 to the rear of the barrel 3, and the protective cover 23 of the blood sample collection tube 2 nested in the cylindrical cavity 33 is located in the sliding groove In the length interval of 36, therefore, the sliding groove 36 is at the same time the operation window 35.
  • the axial length of the inner cavity of the syringe 3 is larger than the length of the puncture needle 11 exposed outside the syringe 3, and the puncture needle 11
  • the puncture needle holder 13, the blood collection needle 12 and even the blood sample collection tube 2 constitute a sliding member that can slide back relative to the syringe 3.
  • the puncture needle holder 13 and the puncture needle 11 can be pushed along the sliding groove until the puncture needle 11 Completely immersed in the inner cavity of the syringe 3. At this time, the blood sample collection tube 2 can be pulled out to be detached from the syringe 3.
  • a backstop device which is an elastic symmetric closed tongue 5 Installed in the inner cavity of the syringe 3 in front of the puncture needle holder 13, the end of the puncture needle 11 is passed through the closed joint of the closing tongue 5 and fixed to the puncture needle holder 13.
  • the closing tongue 5 elastically resets the original puncture needle 11 Export. Blocking, sliding parts that are back in place will not be pushed forward. Thereby ensuring the retracted puncture needle 11
  • the wounded person of the present invention can be promoted to be used once, and can not be used again by criminals.
  • the needle tube 3 near the puncture needle tube 3 is provided with a soft applicator on the outer peripheral surface of the side 4
  • the soft flap 4 has a wingspan on both sides, and the bottom surface of the flap has a concave arc shape adapted to the elbow of the human body, and the bottom surface of the flap 4 is provided with a viscous glue point.

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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)

Abstract

La présente invention concerne un dispositif de collecte de sang sous vide de type seringue avec embout protecteur pour aiguille qui comprend une canule d'aiguille de ponction vasculaire (11), une canule d'aiguille de collecte de sang (12), un tube de collecte d'échantillon de sang (2), et une seringue (3). Une extrémité arrière de la canule d'aiguille de ponction vasculaire (11) est insérée de façon décentrée dans un siège d'aguille de ponction (13) de manière à fermer une surface circonférentielle extérieure de la seringue (3). A l'intérieur de la seringue se trouvent une cavité hermétique (32) et une cavité cylindrique (33). La canule d'aiguille de ponction vasculaire (11) communique avec la cavité hermétique (32), une extrémité avant de la canule d'aiguille de collecte de sang (12) est disposée de manière fixe sur une paroi de la cavité hermétique et communique avec la cavité hermétique (32), et une extrémité arrière de la canule d'aiguille de collecte de sang (12) et la plupart de la seringue s'étendent vers l'arrière et sont insérées dans un bouchon de tube du tube de collecte d'échantillon de sang (2). Un bouchon de canule de la canule d'aiguille de ponction vasculaire (11), la cavité hermétique (32), une partie centrale de tube de la canule d'aiguille de collecte de sang (12), et une cavité de tube du tube de collecte d'échantillon de sang (2) dont la cavité hermétique est perforée forment un canal pour le sang. Un sillon coulissant (36) avec une extrémité arrière où une barrière arrière est disposée s'étend dans une direction axiale sur la paroi latérale de la seringue (3), et un manche de poussée (132) d'un siège d'aiguille de ponction dépasse du sillon coulissant (36) et est exposé à l'extérieur de la seringue (3). La canule d'aiguille de ponction (11), le siège d'aiguille de ponction (13), la canule d'aiguille de collecte de sang (12), et le tube de collecte (2) forment un élément coulissant qui coulisse vers l'arrière relativement à la seringue (3). Avec la régression de l'élément coulissant, la canule d'aiguille de ponction (11) se rétracte dans la cavité interne de la seringue (3), assurant ainsi l'impossibilité qu'un individu se blesse.
PCT/CN2012/079593 2012-08-02 2012-08-02 Dispositif de collecte de sang sous vide de type seringue avec embout protecteur pour aiguille WO2014019198A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2012/079593 WO2014019198A1 (fr) 2012-08-02 2012-08-02 Dispositif de collecte de sang sous vide de type seringue avec embout protecteur pour aiguille
CN201280074560.0A CN104470432B (zh) 2012-08-02 2012-08-02 具有针尖保护的针筒式真空采血器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/079593 WO2014019198A1 (fr) 2012-08-02 2012-08-02 Dispositif de collecte de sang sous vide de type seringue avec embout protecteur pour aiguille

Publications (1)

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WO2014019198A1 true WO2014019198A1 (fr) 2014-02-06

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PCT/CN2012/079593 WO2014019198A1 (fr) 2012-08-02 2012-08-02 Dispositif de collecte de sang sous vide de type seringue avec embout protecteur pour aiguille

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CN (1) CN104470432B (fr)
WO (1) WO2014019198A1 (fr)

Cited By (3)

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CN113080953A (zh) * 2021-04-02 2021-07-09 江苏大学附属医院 一种表面自清洁多功能采血针
CN118986309A (zh) * 2024-10-25 2024-11-22 大连澳华医用高分子器材有限公司 一种防脱动脉穿刺针

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CN113080953A (zh) * 2021-04-02 2021-07-09 江苏大学附属医院 一种表面自清洁多功能采血针
CN118986309A (zh) * 2024-10-25 2024-11-22 大连澳华医用高分子器材有限公司 一种防脱动脉穿刺针

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