CN107405119B - Safe blood taking needle structure - Google Patents
Safe blood taking needle structure Download PDFInfo
- Publication number
- CN107405119B CN107405119B CN201580061977.7A CN201580061977A CN107405119B CN 107405119 B CN107405119 B CN 107405119B CN 201580061977 A CN201580061977 A CN 201580061977A CN 107405119 B CN107405119 B CN 107405119B
- Authority
- CN
- China
- Prior art keywords
- needle
- fixing rod
- bar fixing
- shell
- blood taking
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 239000008280 blood Substances 0.000 title claims abstract description 94
- 210000004369 blood Anatomy 0.000 title claims abstract description 94
- 238000010241 blood sampling Methods 0.000 claims description 25
- 239000002131 composite material Substances 0.000 claims description 20
- 238000010304 firing Methods 0.000 claims description 6
- 208000012266 Needlestick injury Diseases 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 description 16
- 238000005452 bending Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000001746 injection moulding Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009527 percussion Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006806 disease prevention Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 208000013210 hematogenous Diseases 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15103—Piercing procedure
- A61B5/15107—Piercing being assisted by a triggering mechanism
- A61B5/15113—Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
-
- 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
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
-
- 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
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
-
- 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
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
-
- 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
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
Landscapes
- 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)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a safety type blood taking needle structure which comprises a shell (1), a needle bar fixing rod (2) positioned in the shell (1) and a blood taking needle (8) fixed at the top end of the needle bar fixing rod (2), wherein a needle outlet (11) is formed in the top end of the shell (1), and a positioning block (4) for fixing the needle bar fixing rod (2) or a connection point with an easy crack (12) is arranged between the needle bar fixing rod (2) and the shell (1). This safe formula blood taking needle structure fixes blood taking needle (8) in casing (1), can avoid blood taking needle (8) unreasonable exposure when not using, triggers needle stick dead lever (2) afterbody through external force when blood taking needle (8) use, follows locating piece (4) roll-off with needle stick dead lever (2), and then promotes blood taking needle (8), perhaps makes easy breach (12) disconnection, can promote blood taking needle (8) and pass out needle mouth (11) and take a blood sample. The safety blood taking needle has the advantages of simple structure and low manufacturing cost, can be operated by one hand or used with a matched blood taking pen by matching with different structures, can effectively ensure the safe blood taking operation, and is used in the field of medical instruments.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a safe blood taking needle structure.
Background
The existing individual blood taking needle is disposable, the individual blood taking needle is simply a triangular iron sheet or a needle rod fixing rod which is used for fixing a needle rod and is convenient to hold, no limiting device is arranged, the size and depth of a wound caused to a patient are determined completely by proficiency and experience of operation of a nursing staff. The pain is strong, so that part of patients escape and give up blood sampling examination due to fear, a clinician cannot obtain an inspection result and only needs personal experience to develop a treatment scheme, the misdiagnosis rate is high, and the condition of the patient is delayed.
The individual blood taking needles are mostly plastic films or are simply packaged with a cap additionally, the plastic films puncture or the cap falls off in the process of transporting, using and discarding the blood taking needles, the needle heads are exposed due to no shell protective layer, operators or third parties are injured by mistake, the pain is strong, the safety performance is poor, and even hematogenous pollution is formed.
However, such blood collection needles are still used in most medical institutions due to their low price.
Some individual blood taking needles can be matched with a blood taking pen for use, but the individual blood taking needles need to expose needles in the installation and/or disposal process, operators can be accidentally injured due to the exposure of the needles, and the safety performance is poor. And the personal blood taking needle needs to be placed in the blood taking pen, part of patients bring blood into the blood taking pen due to large bleeding amount, ejection and recovery parts of the blood taking pen cannot be replaced every time, thorough cleaning is difficult, and serious hidden danger of blood cross contamination is formed.
The safety blood taking needle is adopted in the market at present, is provided with a limiting device and a shell protective layer, can automatically retract after being triggered, is disposable and has good safety performance. However, the structure is complex, the number of components is large, the manufacturing process is complex, the price is high, the purchase and use cost of a hospital is increased, and the popularization is difficult, so that only a part of major infectious disease prevention and treatment mechanisms or medical mechanisms with good economic conditions are applied.
Clinically, a practical and safe blood taking needle with simple structure, easy manufacture, low price is needed.
Disclosure of Invention
In order to solve the problems, the invention provides a safe blood taking needle structure which is simpler in structure, low in manufacturing cost and capable of effectively guaranteeing safety.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a safe formula blood taking needle structure, includes the casing, is located needle stick dead lever in the casing and the blood taking needle that is fixed in the needle stick dead lever, be equipped with out the needle mouth on the casing, be equipped with the locating piece of fixed needle stick dead lever or possess the easy cracked tie point between needle stick dead lever and casing.
As a further improvement of the technical scheme of the invention, the blood taking needle is a needle-shaped sharp object.
Further as an improvement of the technical scheme of the invention, the needle bar fixing rod extends forwards to be provided with a needle point protection rod.
As further improvement of the technical scheme of the invention, the joint of the needle point protection rod and the needle rod fixing rod is provided with an easy-to-crack part.
The needle bar fixing rod is provided with a limiting device which is arranged on two sides of the needle bar fixing rod in an outward extending mode, and the shell is internally provided with a resetting device which is matched with the limiting device to enable the needle bar fixing rod to reset.
As a further improvement of the technical scheme of the invention, the resetting device is an elastic rod which is formed by extending the shell inwards and inclines towards the bottom of the shell.
As further improvement of the technical scheme of the invention, the shell is provided with stop baffles at two sides of the needle outlet, and the maximum width of the top end of the needle bar fixing rod is greater than that of the needle outlet.
Further as an improvement of the technical scheme of the invention, a positioning block for fixing the needle bar fixing rod is arranged between the needle bar fixing rod and the shell.
Further as an improvement of the technical scheme of the invention, the two sides of the needle bar fixing rod in the shell are provided with reset blocks, each reset block is provided with an arc-shaped groove, the two sides of the needle bar fixing rod extend to be provided with a bulge which can be clamped into the arc-shaped groove when the needle bar fixing rod is reset, and the arc-shaped groove is provided with a notch which can lead the bulge into the arc-shaped groove.
As a further improvement of the technical scheme of the invention, a connecting point with easy crack is arranged between the needle bar fixing rod and the shell.
The needle bar fixing rod is further improved in the technical scheme that the tail end of the needle bar fixing rod extends to be provided with a reset clamp, the reset clamp is clamping rods with two symmetrical sides, and each clamping rod is provided with a clamp facing the inner side.
The invention further provides an improvement of the technical scheme, the bottom of the shell is a needle seat, the tail end of the needle bar fixing rod is fixed on the needle seat, and the needle seat is provided with a bending opening.
The invention further provides an improvement of the technical scheme, an extension arm matched with the tail end of the shell is arranged at the tail end of the shell in an extending mode, a loading position is arranged in the extension arm, and at least one loading position is arranged in the extension arm.
As further improvement of the technical scheme of the invention, the bottom of the extension arm is provided with an opening, and the tail end of the extension arm is provided with a composite locker which is matched with the composite locking hole on the blood sampling pen for fixing.
As further improvement of the technical scheme of the invention, the composite locker is two convex blocks symmetrically arranged in the extension arm.
As the improvement of the technical scheme of the invention, a shell fixing buckle is arranged on the outer side of the shell in an extending manner.
As a further improvement of the technical scheme of the invention, the tail end of the needle bar fixing rod is provided with a firing rod extending backwards.
As a further improvement of the technical scheme of the invention, the tail end of the needle bar fixing rod is provided with a supporting plate extending outwards.
The upper end of the shell is narrowed towards the top, and a needle bar fixing rod moving guide rail for guiding the needle bar fixing rod to slide is further arranged in the shell.
As a further improvement of the technical scheme of the invention, the top end of the shell is extended and provided with an outward extensible skin tensioner.
The invention has the beneficial effects that: this safe formula blood taking needle structure fixes the blood taking needle in the casing, can avoid the unreasonable exposure of blood taking needle when not using, triggers needle bar dead lever afterbody through external force when the blood taking needle uses, with the needle bar dead lever from the locating piece roll-off, and then promote the blood taking needle, perhaps make the easy breach disconnection, can promote the blood taking needle and pass out the needle mouth and take a blood sample, this safe formula blood taking needle cooperation different structures can reach the purpose of one-hand operation andor with supporting blood taking pen use to ensure blood sampling operation safety effectively.
This safe formula blood taking needle structure possesses easy cracked tie point, the portion of bending and buckle device through the setting, can once only accomplish the injection molding or mould plastics, reaches integrated into one piece. After the injection molding is finished, the product can be assembled only by simply bending and pressing.
The safe blood taking needle is externally provided with the percussion power, and the matched blood taking pen can be repeatedly used, so that the material is saved, the environmental protection requirement is met, and the economic burden of medical institutions and patients is obviously relieved.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of the overall structure of a first embodiment of the present invention;
FIG. 2 is a schematic view of the overall structure of a second embodiment of the present invention;
FIG. 3 is a schematic view of the overall structure of a third embodiment of the present invention;
FIG. 4 is a schematic diagram of a fabrication process of an embodiment of the present invention;
FIG. 5 is a schematic diagram of an outline structure of the embodiment of the present invention.
Detailed Description
Referring to fig. 1 to 5, the present invention is a safety lancet structure, including a housing 1, a needle bar fixing rod 2 located in the housing 1, and a lancet 8 fixed to the needle bar fixing rod 2, wherein a needle outlet 11 is provided on the housing 1, and a positioning block 4 for fixing the needle bar fixing rod 2 or a connection point having an easy-to-break 12 is provided between the needle bar fixing rod 2 and the housing 1.
This safe formula blood taking needle structure fixes blood taking needle 8 in casing 1, can avoid the unreasonable exposure of blood taking needle when not using, trigger needle stick dead lever 2 through external force when blood taking needle 8 uses, with needle stick dead lever 2 from the locating piece roll-off, and then promote blood taking needle 8, perhaps make easy breach 12 break off, can promote blood taking needle 8 and pass out needle mouth 11 and take a blood sample, this safe formula blood taking needle cooperates different structures can reach the purpose of single-handed operation and/or use with supporting blood taking pen, can ensure the operation of safe blood taking effectively.
In a preferred embodiment of the present invention, the lancet 8 is a needle-shaped sharp object, and a sharp object having another shape such as a blade may be used.
As a preferred embodiment of the invention, the needle bar fixing rod 2 extends forwards and is provided with a needle point protection rod 23 wrapping the needle point.
In a preferred embodiment of the present invention, a cleavage facilitating portion 24 is provided at the junction between the needlepoint protective rod 23 and the needlepoint fixing rod 2.
The needle point protective rod 23 can prevent the needle point from being exposed outside before use and from rotating and falling off during use, so that the sterilization effect can be guaranteed. The needle point protection rod 23 can be conveniently rotated and dropped by arranging the easy-to-crack part 24, and the needle point protection rod 23 is separated from the needle rod fixing rod 2.
In a preferred embodiment of the present invention, the needle bar fixing rod 2 is provided with a limiting device 21 extending outwards and located at two sides of the needle bar fixing rod 2, and a resetting device cooperating with the limiting device 21 to reset the needle bar fixing rod 2 is provided in the housing 1.
As a preferred embodiment of the invention, the maximum width of the limiting device 21 is larger than the maximum width of the hole formed after the needle bar fixing rod falls off. Like this, stop device 21 both can control the length of pricking out of blood taking needle 8 after triggering to guarantee that blood taking needle 8 can rationally take a blood sample after pricking out, also can prevent that blood taking needle 8 from deviating from casing 1 from the rear portion after the blood sampling is accomplished, and do not cause the injury to by blood sampling person, operator and waste recovery person.
Meanwhile, after the blood sampling is finished, the reset device is matched with the limiting device 21, so that the blood sampling needle 8 can return to the shell 1, the trouble of cleaning and the injury to an operator and a patient are avoided.
In a preferred embodiment of the present invention, the restoring means is an elastic rod 3 formed by extending the housing 1 inward and inclining toward the bottom of the housing 1.
Under this kind of resetting means's the form that sets up, the in-process that blood taking needle 8 pricked out, elastic rod 3 is compressed, pricks out the back of targetting in place at blood taking needle 8, and elastic rod 3 restores initial condition under its self elastic action, can realize the perfect of blood taking needle 8 and reset.
The reset device is provided with various realization forms, accessories such as springs can be arranged on the needle bar fixing rod 2, and an independent reset part can be arranged in the shell 1 to realize the reset function of the blood taking needle 8.
As a preferred embodiment of the invention, the shell 1 is provided with a stop baffle extending from two sides of the needle outlet 11, and the maximum width of the top end of the needle bar fixing rod 2 is larger than the maximum width of the needle outlet 11.
The stop baffles are arranged on two sides of the needle outlet, the inner side of the shell 1 is a horizontal baffle, when the blood taking needle is launched to take blood, the blood taking needle is launched through the needle outlet 11, the front end of the needle bar fixing rod 2 can be blocked by the stop baffles through the front end, and the needle head of the blood taking needle 8 is prevented from being excessively exposed.
The top end of the stop baffle and the needle bar fixing rod 2 can be a ring and a cylinder which are matched with each other and have different diameters, preferably, the inner diameter of the needle outlet 11 is smaller than the outer diameter of the needle bar fixing rod 2, and at least one group of stop baffles is arranged.
The stop baffles are preferably a group, are arranged at the front parts of the shell 1 and the needle bar fixing rod 2 around the needle outlet 11, can be arranged at any part of the shell 1 and the needle bar fixing rod 2, and can be various devices which are arranged between the shell 1 and the needle bar fixing rod 2 and can limit the displacement of the needle bar fixing rod by internal components and/or external components singly or in combination.
The arrangement of the stop baffle can well limit the maximum displacement of the needle bar fixing rod 2, control the puncture depth and prevent the needle head from being excessively exposed.
In a preferred embodiment of the present invention, a positioning block 4 for fixing the needle bar fixing rod 2 is provided between the needle bar fixing rod 2 and the housing 1. The positioning block 4 may be a positioning protrusion 41 and a positioning groove 42 which are matched with each other, and particularly, the positioning block 4 is a hemispherical protrusion and a hemispherical recess which are matched with each other. The positioning blocks 4 are preferably arranged in two groups which are arranged symmetrically left and right. The positioning block 4 can fix the needle bar fixing rod 2 and keep the needle bar fixing rod 2 in a state before being triggered when the needle bar fixing rod 2 is separated from the shell 1.
As a preferred embodiment of the present invention, the housing 1 is provided with reset blocks 5 at both sides of the needle bar fixing lever 2, each reset block 5 is provided with an arc-shaped groove 51, both sides of the needle bar fixing lever 2 are extended with a protrusion 52 capable of being inserted into the arc-shaped groove 51 when the needle bar fixing lever 2 is reset, and the arc-shaped groove 51 is provided with a notch 53 capable of guiding the protrusion 52 into the arc-shaped groove 51.
In a preferred embodiment of the present invention, a connection point having a breakable portion 12 is provided between the needle bar fixing lever and the housing. The arrangement of the connection point can enable the needle bar fixing rod and the shell to be manufactured integrally, and meanwhile, the needle bar fixing rod 2 is fixed to keep the state of the needle bar fixing rod 2 before being triggered. The easy-to-break 12 arranged on the connecting point can separate the needle bar fixing rod 2 from the shell 1 with little force to trigger the blood taking needle.
In a preferred embodiment of the present invention, the needle bar fixing rod 2 is provided with a reset clip 22 extending from the rear end thereof, the reset clip 22 is formed by two symmetrical snap rods 221, and each snap rod 221 is provided with a snap 222 facing inward.
As a preferred embodiment of the invention, the bottom of the shell 1 is a needle seat, the tail end of the needle bar fixing rod 2 is fixed on the needle seat, and the needle seat is provided with a bending opening 15 with a thickness smaller than that of the adjacent part. As a preferred embodiment, the bending mouths 15 are provided at both sides of the needle holder, whereby the assembly can be facilitated. At least one bending opening 15 is arranged, and the bending opening can also be arranged at other parts on the shell.
The setting of the bending opening 15 can facilitate the structure of the blood taking needle to realize one-time injection molding or injection molding, and after the injection molding or injection molding is completed, the assembly of the safety blood taking needle product can be completed only by simply bending or pressing.
As a preferred embodiment of the invention, an extension arm 6 matched with the tail end of the shell 1 is arranged at the tail end of the shell 1 in an extending way, a loading position stop 61 is arranged in the extension arm 6, and at least one loading position stop 61 is arranged in the extension arm 6. In a preferred embodiment, each extension arm 6 is provided with at least one pair of mutually symmetrical upper chamber screens 61.
In a preferred embodiment of the present invention, the bottom of the extension arm 6 is open, and a composite locking device 62 for fixing with a composite locking hole of a lancet is provided at the rear end of the extension arm 6.
In a preferred embodiment of the present invention, the composite lock 62 is formed by two protrusions symmetrically disposed in the extension arm 6, each of the protrusions having one of a tapered shape, a semicircular shape, and a trapezoidal shape, and may have other shapes.
This safe formula blood taking needle structure can cooperate the blood sampling pen to use, and at this moment, the clamp that resets 22 that 2 tail ends of needle stick dead lever set up can be fixed with the cooperation of percussion hammer top on the blood sampling pen, accomplishes the blood sampling back through the blood sampling pen, at the in-process that the blood sampling pen was withdrawed, with the blood sampling pen on the percussion hammer top fixed complex needle stick dead lever 2 can withdraw under the effort at the blood sampling pen and reply.
In the process of matching the blood sampling pen, the loading clamping position 61 and the composite locking device 62 can be better fixedly connected with the blood sampling pen, so that a better connection effect is ensured.
The extension arm 6 is internally provided with at least one, preferably two, strip-shaped block-shaped devices which are symmetrically arranged at two sides and transversely arranged and are matched with the loading device of a designated blood sampling pen for use. The combined type blood taking needle pushing device is used for pushing the composite slide bar to move backwards in the process of combining the blood taking needle 8 with a specified blood taking pen, and the purpose of loading is achieved. After the blood taking needle is combined with the appointed blood taking pen, the composite sliding rod is maintained at the corresponding position, and the loading state is kept. When in ejection, the combined slide bar pushes the loading push rod forwards away from the blood sampling pen under the thrust of the ejection spring. The loading screens 61 can also adopt a semicircular shape, a trapezoidal shape or other shapes, and the placing mode can also adopt other placing modes such as vertical placing, inclined placing, asymmetric placing and the like.
The safety blood taking needle is provided with a composite locking device 62, at least one, preferably two groups of conical block-shaped devices are arranged in the safety blood taking needle, the conical block-shaped devices are vertically and horizontally symmetrically arranged on the extension arm 6 and are matched with a composite locking hole of a specified blood taking pen for use. When the combined type blood taking needle is combined with the composite locking hole, the combined type blood taking needle is used as a clamping mechanism to form inward pressure to tightly connect the blood taking needle and the pen body together. And the combined lock hole is matched with the composite lock hole, and the purposes of keeping the loading state and the ejection unloading state are achieved simultaneously after combination. And the lock is matched with the composite locking hole, so that the aim of keeping the ejection and unloading state after being fired is fulfilled. The composite lock 62 may also be semi-circular, trapezoidal or other shapes, and may also be placed in other ways, such as vertically, diagonally, asymmetrically, etc.
In a preferred embodiment of the present invention, a housing fixing clip 7 extends from the outside of the housing 1. The housing fixing buckle 7 may be a locking hook and a locking groove which are mutually matched, and particularly, the housing fixing buckle 7 is a bar-block-shaped locking barb and a bar-block-shaped locking groove which are mutually matched. The shell fixing buckles 7 are preferably arranged in two groups in a bilateral symmetry mode. The setting of the fixed buckle 7 of casing can be when the blood taking needle structure is assembled, with casing 1 zonulae occludens together, play fixed casing 1, keep the effect that casing 1 is in airtight combination state. The housing fixation clasp 7 may also be placed inside the housing 1, between the housing 1 and the needle hub.
As a preferred embodiment of the present invention, the rear end of the needle bar fixing rod 2 is provided with a firing bar extending backward. The blood sampling pen is preferably cylindrical, is convenient for a hand of a person to press and a percussion hammer of the blood sampling pen to fire, and can be in other shapes.
As a preferred embodiment of the present invention, the rear end of the needle bar fixing rod 2 is provided with a supporting plate extending outward. The optimal selection is arranged at two sides, which is convenient for an operator to use as a firing fulcrum during one-hand operation.
As a preferred embodiment of the invention, the upper end of the shell 1 is narrowed towards the top, and a needle bar fixing rod moving guide rail for guiding the needle bar fixing rod 2 to slide is also arranged in the shell 1.
This safe formula blood taking needle structure can realize the one hand to the percussion of blood taking needle through setting up firing bar and backup pad. Also can reach better blood sampling effect through setting up extension arm 6, compound locking ware 62 and the screens 61 of going up the thorax with appointed blood sampling pen cooperation, more excellent can reach singlehanded, blood sampling pen both general.
In a preferred embodiment of the present invention, an outwardly extendable skin tensioner extends from the top end of the housing 1.
The skin tensioner is positioned outside the top end of the shell 1, when the blood taking needle is used, the top end of the shell 1 is abutted against the skin of a human body, and the skin tensioner is pressed to deform and expand towards two sides, so that the skin of the blood taking part can be tightened. The arrangement of the skin tensioner can ensure that the needle point can penetrate into the tissues of the human body more smoothly, and the pain of the patient during acupuncture is relieved.
The device of the invention has the advantages of simple structure, few components, easy assembly, high reliability and safe use. Through the design of external power and the like, the material is saved, the working procedures are reduced, the production cost is reduced, and the economic burden of medical institutions and patients is obviously reduced.
The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (11)
1. A safe blood taking needle structure is characterized in that: the blood taking needle comprises a shell, a needle bar fixing rod and a blood taking needle, wherein the needle bar fixing rod is positioned in the shell, the blood taking needle is fixed on the needle bar fixing rod, a needle outlet is formed in the shell, and a positioning block for fixing the needle bar fixing rod or a connecting point with an easy crack is arranged between the needle bar fixing rod and the shell; reset blocks are arranged on two sides of the needle bar fixing rod in the shell, each reset block is provided with an arc-shaped groove, two sides of the needle bar fixing rod extend to be provided with a bulge which can be clamped into the arc-shaped groove when the needle bar fixing rod is reset, and the arc-shaped groove is provided with a notch which can lead the bulge into the arc-shaped groove; the tail end of the shell extends to form an extension arm matched with the tail end of the shell, at least one loading clamping position is arranged in the extension arm, the tail end of the extension arm is provided with a composite locker matched with a composite locking hole on the blood sampling pen to fix, the composite locker is matched with the composite locking hole, the loading state and the unloading state can be simultaneously kept after combination, and the unloading state can be kept after firing.
2. A safety lancet structure according to claim 1, wherein: the needle bar fixing rod extends outwards to be provided with limiting devices positioned on two sides of the needle bar fixing rod, and a reset device matched with the limiting devices to reset the needle bar fixing rod is arranged in the shell.
3. A safety lancet structure according to claim 2, wherein: the reset device is an elastic rod formed by extending the shell inwards and inclining towards the bottom of the shell.
4. A safety lancet structure according to claim 1, wherein: and stop baffles are arranged on the two sides of the needle outlet on the shell, and the maximum width of the top end of the needle bar fixing rod is greater than that of the needle outlet.
5. A safety lancet structure according to claim 1, wherein: the needle bar fixing rod is characterized in that a reset clamp is arranged at the tail end of the needle bar fixing rod in an extending mode, the reset clamp is clamping rods with two symmetrical sides, and each clamping rod is provided with a clamp buckle facing the inner side.
6. A safety lancet structure according to claim 1, wherein: the tail end of the needle bar fixing rod is provided with a firing rod extending backwards.
7. A safety lancet structure according to claim 1, wherein: the tail end of the needle bar fixing rod is provided with a supporting plate extending outwards.
8. A safety lancet structure according to claim 1, wherein: the upper end of the shell narrows to the top, and a needle bar fixing rod moving guide rail for guiding the needle bar fixing rod to slide is further arranged in the shell.
9. A safety lancet structure according to claim 1, wherein: the top end of the shell is extended with an outward extensible skin tensioner.
10. A safety lancet structure according to claim 1, wherein: the bottom opening of extension arm is located the tail end of extension arm is equipped with the complex locking ware that the complex locking hole was fixed on the cooperation blood sampling pen.
11. A safety lancet structure according to claim 10, wherein: the composite locker is two lugs symmetrically arranged in the extension arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010369059.3A CN112155563A (en) | 2015-01-20 | 2015-11-12 | Safe blood taking needle structure |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510026145 | 2015-01-20 | ||
| CN2015100261453 | 2015-01-20 | ||
| PCT/CN2015/094498 WO2016115941A1 (en) | 2015-01-20 | 2015-11-12 | Safe blood lancet structure |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010369059.3A Division CN112155563A (en) | 2015-01-20 | 2015-11-12 | Safe blood taking needle structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107405119A CN107405119A (en) | 2017-11-28 |
| CN107405119B true CN107405119B (en) | 2020-06-16 |
Family
ID=56176006
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580061977.7A Active CN107405119B (en) | 2015-01-20 | 2015-11-12 | Safe blood taking needle structure |
| CN202010369059.3A Pending CN112155563A (en) | 2015-01-20 | 2015-11-12 | Safe blood taking needle structure |
| CN201610026606.1A Active CN105640571B (en) | 2015-01-20 | 2016-01-17 | A kind of safety type blood collecting needle construction |
| CN201620038796.4U Expired - Fee Related CN205338962U (en) | 2015-01-20 | 2016-01-17 | Safe blood -taking -needle structure |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010369059.3A Pending CN112155563A (en) | 2015-01-20 | 2015-11-12 | Safe blood taking needle structure |
| CN201610026606.1A Active CN105640571B (en) | 2015-01-20 | 2016-01-17 | A kind of safety type blood collecting needle construction |
| CN201620038796.4U Expired - Fee Related CN205338962U (en) | 2015-01-20 | 2016-01-17 | Safe blood -taking -needle structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (4) | CN107405119B (en) |
| WO (1) | WO2016115941A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016115941A1 (en) * | 2015-01-20 | 2016-07-28 | 胡绍勤 | Safe blood lancet structure |
| CN107320143B (en) * | 2017-07-02 | 2018-08-14 | 常州瑞索斯医疗设备有限公司 | A kind of surgery needle holder with protective device |
| CN107703289A (en) * | 2017-10-30 | 2018-02-16 | 株洲市三三医院 | A kind of instant blood testing test strips and its paper box |
| CN110226937B (en) * | 2019-07-13 | 2024-02-20 | 淮安易捷科技有限公司 | Blood sampling pen convenient to assembly |
| CN112168183A (en) * | 2020-10-27 | 2021-01-05 | 王�华 | Portable blood sampling device for glucometer |
| CN112515670B (en) * | 2021-01-29 | 2022-08-02 | 张哲� | A distinguish detection device for diabetic nephropathy |
| CN113647994A (en) * | 2021-08-24 | 2021-11-16 | 四川大学华西医院 | Auxiliary device for lung cancer methylation inspection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1525837A (en) * | 2001-07-11 | 2004-09-01 | ������������ʽ���� | Lancet and piercing device |
| CN202218877U (en) * | 2011-09-06 | 2012-05-16 | 苏州乔阳医学科技有限公司 | Rear-pressing type disposable safety blood-taking needle |
| CN103549964A (en) * | 2013-11-15 | 2014-02-05 | 柳新荣 | Disposable hemostix |
| CN104856698A (en) * | 2014-05-21 | 2015-08-26 | 胡绍勤 | Safety type blood collection needle structure |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4250699B2 (en) * | 1998-12-16 | 2009-04-08 | アークレイ株式会社 | A lancet device that can safely remove the lancet |
| KR200236159Y1 (en) * | 1999-04-24 | 2001-09-25 | 이춘발 | Aaaaa |
| JP4214274B2 (en) * | 2001-06-11 | 2009-01-28 | アークレイ株式会社 | Puncture element integrated body |
| CN1313053C (en) * | 2004-09-15 | 2007-05-02 | 施迎敢 | Needle tip drawing back type disposable safety blood taking needle and disposable ejection type safety blood taking pen |
| CN1961828B (en) * | 2005-11-11 | 2011-07-27 | 上海宝尔生贸易有限公司分公司 | Pen cap type blood taking needle |
| EP2298173B1 (en) * | 2008-06-05 | 2012-10-24 | Lightnix, Inc. | Puncture needle cartridge and puncture device |
| CN201481428U (en) * | 2009-08-10 | 2010-05-26 | 柳新荣 | Disposable blood sampling device |
| CN202497154U (en) * | 2012-03-28 | 2012-10-24 | 浙江大学 | Disposable blood collecting device with precompiled two-dimensional bar code |
| CN203354551U (en) * | 2013-07-31 | 2013-12-25 | 柳新荣 | Disposal blood sampler |
| WO2016115941A1 (en) * | 2015-01-20 | 2016-07-28 | 胡绍勤 | Safe blood lancet structure |
-
2015
- 2015-11-12 WO PCT/CN2015/094498 patent/WO2016115941A1/en active Application Filing
- 2015-11-12 CN CN201580061977.7A patent/CN107405119B/en active Active
- 2015-11-12 CN CN202010369059.3A patent/CN112155563A/en active Pending
-
2016
- 2016-01-17 CN CN201610026606.1A patent/CN105640571B/en active Active
- 2016-01-17 CN CN201620038796.4U patent/CN205338962U/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1525837A (en) * | 2001-07-11 | 2004-09-01 | ������������ʽ���� | Lancet and piercing device |
| CN202218877U (en) * | 2011-09-06 | 2012-05-16 | 苏州乔阳医学科技有限公司 | Rear-pressing type disposable safety blood-taking needle |
| CN103549964A (en) * | 2013-11-15 | 2014-02-05 | 柳新荣 | Disposable hemostix |
| CN104856698A (en) * | 2014-05-21 | 2015-08-26 | 胡绍勤 | Safety type blood collection needle structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016115941A1 (en) | 2016-07-28 |
| CN105640571B (en) | 2019-03-26 |
| CN107405119A (en) | 2017-11-28 |
| CN112155563A (en) | 2021-01-01 |
| CN105640571A (en) | 2016-06-08 |
| CN205338962U (en) | 2016-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108903953B (en) | Safe blood taking needle structure | |
| CN107405119B (en) | Safe blood taking needle structure | |
| CN203609428U (en) | Disposable hemostix | |
| CN101954133B (en) | Safe intravenous infusion needle | |
| CN105640572B (en) | A kind of safety type blood collecting needle construction | |
| MX2012007851A (en) | Extraction device for collecting blood samples, including a catheter and a safety system. | |
| WO2021068280A1 (en) | Safe ejection intravenous needle | |
| CN215651770U (en) | Long-handle injection gun for veterinarian | |
| CN103549964A (en) | Disposable hemostix | |
| CN109498034A (en) | The disposable anti-aculeus blood-taking device of retraction type | |
| CN211583180U (en) | Novel medical needle | |
| CN105193429B (en) | Disposable safety retraction hemostix | |
| CN201603194U (en) | Safety intravenous infusion needle | |
| CN211096659U (en) | Safe ejection vein needle | |
| CN204723072U (en) | A kind of Novel push-type blood lancet device | |
| CN209695207U (en) | Safety blood taking needle with automatic needle return function | |
| CN211066654U (en) | Push type safety protection mechanism of blood taking needle | |
| CN203354551U (en) | Disposal blood sampler | |
| CN104983431A (en) | Press type blood collection needle device | |
| KR20210091844A (en) | Tool of Depletion | |
| CN206403783U (en) | Safe artery hemostix | |
| CN215348972U (en) | Puncture-proof blood taking needle | |
| TW202108191A (en) | Syringe in which the needle, the needle tube portion and the medicine are integrated as one unit so as to hide the needle to prevent needling injuries | |
| CN216294887U (en) | Ejection type puncture-proof blood taking needle | |
| CN214762637U (en) | Scalp steel needle with protection function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| OL01 | Intention to license declared |