CN108903953B - Safe blood taking needle structure - Google Patents
Safe blood taking needle structure Download PDFInfo
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- CN108903953B CN108903953B CN201810785229.9A CN201810785229A CN108903953B CN 108903953 B CN108903953 B CN 108903953B CN 201810785229 A CN201810785229 A CN 201810785229A CN 108903953 B CN108903953 B CN 108903953B
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- blood taking
- bar fixing
- fixing rod
- needle bar
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—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
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150053—Details for enhanced collection of blood or interstitial fluid at the sample site, e.g. by applying compression, heat, vibration, ultrasound, suction or vacuum to tissue; for reduction of pain or discomfort; Skin piercing elements, e.g. blades, needles, lancets or canulas, with adjustable piercing speed
- A61B5/150106—Means for reducing pain or discomfort applied before puncturing; desensitising the skin at the location where body is to be pierced
- A61B5/150152—Means for reducing pain or discomfort applied before puncturing; desensitising the skin at the location where body is to be pierced by an adequate mechanical impact on the puncturing location
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
-
- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—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
- A61B5/151—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
- A61B5/15188—Constructional features of reusable driving devices
- A61B5/15192—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing
- A61B5/15194—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Pain & Pain Management (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a safe blood taking needle structure, which fixes a blood taking needle in a shell, can avoid unreasonable exposure of the blood taking needle when not in use, can push the blood taking needle through triggering the tail part of a needle bar fixing rod when in use or can break an easy-to-crack opening, and can push the blood taking needle to penetrate through a needle outlet for blood taking.
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 processes of transporting, using and discarding the blood taking needles, the needle heads are exposed due to no outer 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 an outer 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, which comprises a housin, be located the needle bar dead lever in the casing and be fixed in the blood taking needle on needle bar dead lever top, the top of casing is equipped with out the needle mouth, the needle bar dead lever breaks away from and is equipped with the tie point that possesses easy breach in inside setting of casing or with the casing within a definite time, be equipped with the stop device who is located needle bar dead lever both sides on the needle bar dead lever, be equipped with the resetting means that cooperation stop device makes the needle bar dead lever restore to the throne in the casing, the tail end that is located the casing is equipped with the extension arm that matches with the casing tail end, be equipped with the screens of going up the thorax in the extension arm, be equipped with at least one screens of going up in the extension arm.
As a further improvement of the technical scheme of the invention, the resetting device is an elastic rod which is positioned in the shell and inclines towards the bottom of the shell or is parallel to the bottom of the shell.
As a further improvement of the technical scheme of the invention, the resetting device is an elastic rod which is positioned in the shell and inclines towards the needle outlet side, and the elastic rod and two sides of the resetting device are provided with clamping hooks.
As a further improvement of the technical scheme of the invention, the reset device is a reset spring positioned between the needle outlet and the limiting device.
As a further improvement of the technical scheme of the invention, the reset device comprises elastic rods which are arranged at two sides of the needle bar fixing rod and are opened towards the side where the needle outlet is positioned, an inclined groove is arranged in the shell, and the inclined groove is folded towards the side where the needle outlet is positioned along the middle part 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, the two sides of the needle bar fixing rod in the shell are provided with the reset blocks, the two sides of the needle bar fixing rod are provided with the bulges which can be clamped into the arc-shaped grooves when the needle bar fixing rod is reset, and the arc-shaped grooves are provided with the gaps which can lead the bulges into the arc-shaped grooves.
The needle bar fixing rod is further improved in the technical scheme that the tail end of the needle bar fixing rod is provided with the 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 improves the technical scheme that the tail end of the needle bar fixing rod is provided with a restorer which is a circular cover protruding out of the tail end of the needle bar fixing rod, and the circular cover can be embedded into the top end of the blood sampling pen to restore along with the extraction of the blood sampling pen.
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.
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 further improvement of the technical scheme of the invention, a shell fixing buckle is arranged on the outer side of the shell.
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.
As further improvement of the technical scheme of the invention, a needle bar fixing rod moving guide rail for guiding the needle bar fixing rod to slide is arranged in the shell.
As a further improvement of the technical scheme of the invention, the shell is 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, and the blood taking needle promotes the blood taking needle through triggering needle stick dead lever afterbody when using, perhaps makes the easy breach disconnection, can promote the blood taking needle and pass out the needle mouth and take a blood sample, and this safe formula blood taking needle simple structure, cost low cost cooperate different structures can reach the one-hand operation with or with the purpose that supporting blood taking pen used, can ensure the operation of safe blood taking effectively.
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 view of the overall structure of a fourth embodiment of the present invention;
FIG. 5 is a schematic diagram of a fabrication process according to an embodiment of the present invention;
FIG. 6 is a schematic view showing the entire structure of the first embodiment of the present invention in a state in which the present invention is used with a lancet;
FIG. 7 is a schematic view showing the entire structure of a second embodiment of the present invention in a state in which the present invention is used with a lancet;
FIG. 8 is a schematic view showing the entire structure of a third embodiment of the blood lancet used in accordance with the present invention;
FIG. 9 is a schematic view showing the entire structure of a fourth embodiment of the blood lancet usage state of the present invention;
FIG. 10 is a schematic diagram of an outline structure of the embodiment of the present invention.
Detailed Description
Referring to fig. 1 to 10, the present invention is a safety blood taking needle structure, including a housing 1, a needle bar fixing rod 2 located in the housing 1, and a blood taking needle 8 fixed at the top end of the needle bar fixing rod 2, the top end of the housing 1 is provided with a needle outlet 11, the needle bar fixing rod 2 is separated from the housing 1 or provided with a connection point with an easy crack 12 between the needle bar fixing rod 2 and the housing 1, the needle bar fixing rod 2 is provided with a position limiting device 21 located at two sides of the needle bar fixing rod 2, the housing 1 is provided with a resetting device matched with the position limiting device 21 to reset the needle bar fixing rod 2, the tail end of the housing 1 is provided with an extension arm 6 matched with the tail end of the housing 1, the extension arm 6 is provided with an upper clamping chamber 61, and the extension arm 6 is provided with at least one upper clamping chamber 61.
In a preferred embodiment, each extension arm 6 is provided with at least one pair of mutually symmetrical upper chamber screens 61.
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, and the blood taking needle is promoted through triggering needle stick dead lever 2 when 8 use of blood taking needle, perhaps makes easy breach 12 disconnection, can promote blood taking needle 8 and pass out needle mouth 11 and take a blood sample, this safe formula blood taking needle simple structure, cost low cost, the structure of cooperation difference can reach the purpose of one-hand operation andor with supporting blood taking pen use, 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 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.
As a preferred embodiment of the present invention, the reset means is an elastic rod 3 located inside the housing 1 inclined toward the bottom of the housing 1 or parallel to the bottom of the housing 1.
In a preferred embodiment of the present invention, the reset device is an elastic rod 3 which is positioned in the housing 1 and inclined towards the needle outlet 11, and the elastic rod 3 and the two sides of the reset device are provided with hooks 13.
As a preferred embodiment of the invention, the resetting device comprises elastic rods 3 which are arranged at two sides of the needle bar fixing rod 2 and are opened towards the side of the needle outlet 11, an inclined groove 14 is arranged in the shell 1, and the inclined groove 14 is closed towards the side of the needle outlet 11 along the middle part of the shell 1.
Under the three types of reset devices, the elastic rod 3 is compressed or stretched in the process that the blood taking needle 8 pierces, and after the blood taking needle 8 pierces in place to take blood, the elastic rod 3 returns to the initial state under the elastic action of the elastic rod, so that the blood taking needle 8 can be reset perfectly.
In a preferred embodiment of the present invention, the return means is a return spring 4 located between the needle outlet 11 and the stopper 21.
The arrangement form of the return spring 4 is also the arrangement form of the return device, the return spring 4 is more stable, and the return of the blood taking needle 8 after blood taking can be better realized.
The reset device is provided with various realization forms, accessories 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 casing 1 is provided with stop baffles at 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.
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 provided with protrusions 52 which can be inserted into the arc-shaped grooves 51 when the needle bar fixing lever 2 is reset, and the arc-shaped grooves 51 are provided with notches 53 which can guide the protrusions 52 into the arc-shaped grooves 51.
In a preferred embodiment of the present invention, the needle bar fixing rod 2 is provided at the rear end thereof with a reset clip 22, 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.
In a preferred embodiment of the present invention, the needle bar fixing lever 2 is provided at the rear end thereof with a reset device 23, the reset device 23 is a circular cap 231 protruded from the rear end of the needle bar fixing lever 2, and the circular cap 231 is inserted into the tip of the lancet to be reset when the lancet is pulled out.
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. 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.
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 22 or the restorer 23 that resets that the 2 tail ends of needle stick dead lever set up can fix with the top cooperation of blood sampling pen, accomplishes the blood sampling back through the blood sampling pen, at the in-process that the blood sampling pen withdraws, can withdraw under the effort with the fixed complex needle stick dead lever 2 in blood sampling pen top 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 is provided on the outer side of the housing 1. 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.
In a preferred embodiment of the present invention, the needle bar fixing lever movement guide is provided with a positioner for correcting the movement locus of the needle bar fixing lever 2, and preferably, the positioning accuracy of the two or more stages of lower stage positioners is higher than that of the upper stage positioner. The embodiment adopts three stages, namely a columnar positioner, a conical positioner and a plane positioner.
After the blood taking needle is fired, the needle bar fixing rod 2 is separated from an easily-cracked point or a reset block and slides forwards along a needle bar fixing rod movement guide rail, the needle bar fixing rod 2 enters a columnar positioner firstly to primarily correct the movement track of the needle bar fixing rod 2 and then enters a conical positioner, the movement track of the needle bar fixing rod 2 is corrected through secondary fine adjustment to be in a vertical state, and then the needle bar fixing rod enters a plane positioner to ensure that the movement track of a needle seat enables a needle point and a needle outlet hole to be in a vertical state, and the needle point protrudes out of the needle outlet hole to complete firing.
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 invention, the housing 1 is provided with an outwardly extendable skin tensioner 9.
The skin tensioner 9 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 pressed against the skin of a human body, and the skin tensioner 9 deforms and expands towards two sides under the pressure, so that the skin of the blood taking part can be tightened. The skin tensioner 9 can make the needle point puncture into the tissue of human body more smoothly, and reduce the pain of the patient during the acupuncture.
The device of the invention has the advantages of simple structure, few components, easy assembly, high reliability and safe use. Through setting up the portion of bending and buckle device, can once only accomplish the injection molding or mould plastics, only need simply bend and press the equipment that can accomplish the product. Greatly saves materials, reduces working procedures, reduces production cost and obviously lightens the economic burden of medical institutions and patients.
When the blood taking needle structure is used in cooperation with a matched blood taking pen, the rapid loading function of one-key loading and firing and unloading of the chamber can be achieved, and operation of operators is facilitated.
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 (7)
1. A safe blood taking needle structure is characterized in that: including casing (1), be located needle stick dead lever (2) in casing (1) and blood taking needle (8) that are fixed in needle stick dead lever (2) top, the top of casing (1) is equipped with out needle mouth (11), needle stick dead lever (2) break away from in casing (1) inside setting or with casing (1) within a definite time be equipped with the tie point that possesses easy breach (12), be equipped with stop device (21) that are located needle stick dead lever (2) both sides on needle stick dead lever (2), be equipped with cooperation stop device (21) in casing (1) and make the resetting means that needle stick dead lever (2) reset, be located the tail end of casing (1) is equipped with extension arm (6) with casing (1) tail end matching, be equipped with at least one thorax screens (61) in extension arm (6), the bottom opening of extension arm (6), be located the tail end of extension arm (6) is equipped with the complex locking hole on the cooperation blood taking pen and carries out the complex locking that fixes and locks the complex locking The tail end of the needle bar fixing rod (2) is provided with a firing rod extending backwards, and the tail end of the needle bar fixing rod (2) is provided with a supporting plate extending outwards.
2. A safety lancet structure according to claim 1, wherein: the needle bar fixing device is characterized in that stop baffles are arranged on the two sides of the needle outlet (11) on the shell (1), and the maximum width of the top end of the needle bar fixing rod (2) is larger than that of the needle outlet (11).
3. A safety lancet structure according to claim 1, wherein: the needle bar fixing rod is characterized in that a reset clamp (22) is arranged at the tail end of the needle bar fixing rod (2), the reset clamp (22) is clamping rods (221) with two symmetrical sides, and a clamp (222) facing the inner side is arranged on each clamping rod (221).
4. A safety lancet structure according to claim 1, wherein: the tail end of the needle bar fixing rod (2) is provided with a restorer (23), the restorer (23) is a circular cover (231) protruding out of the tail end of the needle bar fixing rod (2), and the circular cover (231) can be embedded into the top end of a blood sampling pen to be restored along with the extraction of the blood sampling pen.
5. A safety lancet structure according to claim 1, wherein: the composite lock (62) is two bumps symmetrically arranged in the extension arm (6).
6. A safety lancet structure according to claim 1, wherein: a shell fixing buckle (7) is arranged on the outer side of the shell (1).
7. A safety lancet structure according to claim 1, wherein: the shell (1) is provided with a skin tensioner (9) which can extend outwards.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014102157587 | 2014-05-21 | ||
| CN201410215758 | 2014-05-21 | ||
| CN201510026145 | 2015-01-20 | ||
| CN2015100261453 | 2015-01-20 | ||
| CN201510259891.7A CN104856698B (en) | 2014-05-21 | 2015-05-19 | A kind of safety type blood collecting needle construction |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510259891.7A Division CN104856698B (en) | 2014-05-21 | 2015-05-19 | A kind of safety type blood collecting needle construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
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| CN201510260856.7A Active CN104856699B (en) | 2014-05-21 | 2015-05-19 | A kind of bullet unloads formula blood collecting pen structure |
| CN201510259891.7A Active CN104856698B (en) | 2014-05-21 | 2015-05-19 | A kind of safety type blood collecting needle construction |
| CN201580025173.1A Active CN107072605B (en) | 2014-05-21 | 2015-05-19 | Bullet formula blood sampling pen structure of unloading |
| CN201520325229.2U Active CN204654955U (en) | 2014-05-21 | 2015-05-19 | A kind of safety type blood collecting needle construction |
| CN201810785229.9A Active CN108903953B (en) | 2014-05-21 | 2015-05-19 | Safe blood taking needle structure |
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| CN201510260856.7A Active CN104856699B (en) | 2014-05-21 | 2015-05-19 | A kind of bullet unloads formula blood collecting pen structure |
| CN201510259891.7A Active CN104856698B (en) | 2014-05-21 | 2015-05-19 | A kind of safety type blood collecting needle construction |
| CN201580025173.1A Active CN107072605B (en) | 2014-05-21 | 2015-05-19 | Bullet formula blood sampling pen structure of unloading |
| CN201520325229.2U Active CN204654955U (en) | 2014-05-21 | 2015-05-19 | A kind of safety type blood collecting needle construction |
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| CN104856699B (en) * | 2014-05-21 | 2018-02-13 | 广州市恒诚空调设备维修有限公司 | A kind of bullet unloads formula blood collecting pen structure |
| WO2016116015A1 (en) * | 2015-01-20 | 2016-07-28 | 胡绍勤 | Safe blood lancet structure |
| WO2016115941A1 (en) * | 2015-01-20 | 2016-07-28 | 胡绍勤 | Safe blood lancet structure |
| WO2017118108A1 (en) * | 2016-01-05 | 2017-07-13 | 胡绍勤 | Infusion tube |
| CN106483283A (en) * | 2016-11-28 | 2017-03-08 | 贝知（上海）信息科技有限公司 | A kind of diagnostic test system |
| CN107468289A (en) * | 2017-08-03 | 2017-12-15 | 宋瑞昕 | Imbedding tool |
| CN107334479B (en) * | 2017-08-04 | 2023-08-18 | 深圳依洛科特医疗科技有限公司 | Ejection control mechanism for blood taking needle |
| CN107625526B (en) * | 2017-10-23 | 2019-08-23 | 苏州施莱医疗器械有限公司 | A kind of blood collecting pen for preventing maloperation from unloading needle |
| CN108514422B (en) * | 2018-05-22 | 2023-11-14 | 苏州施莱医疗器械有限公司 | Blood sampling pen with needle unloading protection |
| CN111214241A (en) * | 2019-05-12 | 2020-06-02 | 天津华鸿科技股份有限公司 | Blood sampling pen |
| CN110141250B (en) * | 2019-05-28 | 2024-04-02 | 苏州施莱医疗器械有限公司 | Needle-type blood sampling pen without removing cap and with needle removing protection |
| CN110226937B (en) * | 2019-07-13 | 2024-02-20 | 淮安易捷科技有限公司 | Blood sampling pen convenient to assembly |
| CN110946590B (en) * | 2019-08-31 | 2022-07-15 | 深圳硅基传感科技有限公司 | Pushing device for medical instrument |
| CN111214246B (en) * | 2019-09-26 | 2022-09-06 | 天津华鸿科技股份有限公司 | Blood taking pen and needle seat for blood taking needle |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2015176644A1 (en) | 2015-11-26 |
| CN108903953A (en) | 2018-11-30 |
| CN104856699B (en) | 2018-02-13 |
| CN107072605A (en) | 2017-08-18 |
| CN204654955U (en) | 2015-09-23 |
| CN104856698A (en) | 2015-08-26 |
| CN104856699A (en) | 2015-08-26 |
| CN107072605B (en) | 2020-07-21 |
| CN104856698B (en) | 2018-08-28 |
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