CN104545945A - Lever-locked integrated type side-triggered disposable blood collector - Google Patents
Lever-locked integrated type side-triggered disposable blood collector Download PDFInfo
- Publication number
- CN104545945A CN104545945A CN201510038509.XA CN201510038509A CN104545945A CN 104545945 A CN104545945 A CN 104545945A CN 201510038509 A CN201510038509 A CN 201510038509A CN 104545945 A CN104545945 A CN 104545945A
- Authority
- CN
- China
- Prior art keywords
- needle
- lever
- overcoat
- lock
- hemostix
- 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.)
- Pending
Links
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
- A61B5/150007—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
-
- 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
- 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
- A61B5/15117—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 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (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)
Abstract
A lever-locked integrated type side-triggered disposable blood collector comprises a casing, a blood collection needle, a trigger spring, a rear cover, a sterile sealing structure and a locking lever, wherein the blood collection needle and the trigger spring are arranged in an inner cavity of the casing, the rear cover is fixedly mounted at the rear end of the casing, and the sterile sealing structure is connected with a needle head. The front end and the rear end of the trigger spring are connected with the rear portion of a needle handle and the rear cover respectively. The locking lever is arranged in a locking lever holding hole in the side wall of the casing and is formed by integral injection molding of connecting portions, symmetrically arranged on two side faces of the locking lever, and the casing. The connecting portions form a fulcrum of the locking lever, and a locking resisting arm and a locking power arm, which are positioned at the front end and the rear end of the casing respectively, are formed by taking the fulcrum as a demarcation point. A locking step surface on the inner surface of the locking resisting arm and a limiting step surface, close to the front end, of the needle handle cooperates with each other to form a locking structure and enable the trigger spring to be in a compressed and to-be-triggered state. A pressing portion extending out of the side wall of the casing to form a pressing handle is arranged on the outer surface of the rear end of the locking resisting arm. By the blood collector, production cost is reduced, and pain caused by blood collection is alleviated.
Description
Technical field
The present invention relates to the chemical examination of medical and clinical blood and detect medical instruments field, espespecially a kind of lever lock solution integral type is other triggers disposable safe hemostix.
Background technology
" disposable safe hemostix " also claims " disposable safe blood taking needle " to be the main blood taking instrument of countries in the world clinical medicine in tip blood sampling chemical examination, be easy to carry because having, easy to operate, sterilization thoroughly, aseptic is strong, can the advantages such as medical cross infection be avoided again, therefore since appearance, receive the extensive welcome of doctor and patient.But as medical disposable material product, have the following disadvantages again simultaneously:
1, existing main product, slightly aobvious complicated and cause cost of material, manufacturing cost and assembly cost higher in structural design, increase the weight of the expense expenditure of hospital and patient, brought to the sale of enterprise and the competing Fight in market certain unfavorable simultaneously.Although occurred in recent years " the disposable safe hemostix " that replace steel spring with the elastomeric element that plastics are injection molded into S type or " it " font, hemostix inserting needle and the withdraw of the needle is driven with it, reach a little object of falling manufacturing cost and assembly cost, but because plastics used functionally do not belong to elastomeric material category, thus not there is the various excellent technical specification of elastomeric material.Final because of poor flexibility, the type apparition when storing, and it is responsive to ambient temperature in using, hardening when easily causing low temperature, and the shortcoming of deliquescing during high temperature, make to cause depth of needle inadequate because needle force amount diminishes during blood sampling, cause amount of bleeding not enough, sometimes need repeatedly repeatedly extrude and cause erythrocyte fragmentation haemolysis, and then have impact on blood examination quality; Again because inserting needle speed is obviously slack-off, and cause pain to be obviously greater than steel spring construction, this is a kind of disappearance in human nature service.
2, because of " disposable safe hemostix " when taking a blood sample because triggering mode is different, also determine the difference of pluses and minuses.Bring different impressions also to various patient.Three classes " disposable safe hemostix " brief introduction now concrete is as follows:
1) trigger-type " disposable safe hemostix " under.The trigger mechanism design of this kind " disposable safe hemostix " is in the bottom of hemostix.This hemostix is current main force's hemostix, the hemostix of two hemostix enterprises productions of such as largest domestic: the hemostix of Tianjin Hua Hongyi material company limited is lower trigger-type structure; The domestic main force product of Suzhou Shilai Medical Appliances Co., Ltd. is also lower trigger-type structure.In addition, main force's product of the BD company of the well-known U.S. of international well-established business is also had to descend trigger-type structure especially.Why this kind of lower trigger-type hemostix becomes main force's product, be because of its invention and use history the earliest and first impressions are strongest relevant.When this kind of hemostix patient Give takes a blood sample, the hand-held hemostix of doctor one, another holds the finger of steady client need blood sampling, after the finger abdomen needle outlet end face of hemostix being aimed at blood sampling site also realizes contact, also need to give a larger downforce, the automatic unlocking realizing hemostix and percussion function, and then inserting needle when completing blood sampling and withdraw of the needle action.Its disadvantage is the activation pressure of this kind of hemostix is constant, but each finger abdomen situation by adopting patient is different.Like this when reality is taken a blood sample, for referring to the thinner tenderer and person of being adopted that the pain sensation is extremely responsive again of Pericarpium Arecae skin, just there will be and significantly oppressing pain.Such as, when referring to that abdomen take a blood sample to child or infant, this colony just there will be significantly lower tenderness, has pressed in advance because of excessive lower tenderness and cried before part child appearance also not being pricked cry.Bring unnecessary pain to child or infant bitter, one that has also increased the weight of the child head of a family pained.But when taking a blood sample to the thicker person of being adopted of finger Pericarpium Arecae skin with this kind of hemostix, pain is just lighter.Such as giving adult's physical labourer, when pressing down trigger force when taking a blood sample, the finger Pericarpium Arecae skin because of patient is thicker even with different calluses, is not now adopted person and usually can not feel any lower tenderness.And this kind of lower trigger-type hemostix, from by blood sampling colony amount of bleeding, also Shortcomings, concrete condition is: because not only the horny layer of the finger abdomen of child and infant colony thin but also tender, same lower trigger-type blood sampling, amount of bleeding excessively deeply can be caused too much to need hemostasis by compression because of inserting needle, in addition, because lower trigger force can cause occurring that the local skin of blood sampling site occurs that obvious pitting is out of shape, the Chong wound of initiation hemostix to skin is excessive crosses dark phenomenon with inserting needle, not only extend healing time, the generation more having increased the weight of to keenly feel is (through the clinical observation of decades, once depth of needle is more than 1.5mm, pin hole pain can be caused, and need 24 hours to disappear), and the especially blue-collar man of adult, thicker comparatively hard because of cutin protectiveness hypertrophy again, in same lower trigger-type blood sampling, the deficiency that can cause blood sampling volume because inserting needle is excessively shallow again.
2) upper trigger-type " disposable safe hemostix ".The trigger mechanism design of this kind " disposable safe hemostix " is on the top of hemostix.Operational approach be on hemostix is fixed on by the person of adopting finger abdomen by patient's thumb and middle finger after, then press down the trigger mechanism of hemostix with the forefinger of this hands and complete the blood sampling program of inserting needle and the withdraw of the needle.But because three refer to that the inertia that formed for many years coordinates, finally causing three fingers to form downward making a concerted effort in the moment of triggering, and this all acted on the finger abdomen by the person of adopting with joint efforts, is therefore identical with the shortcoming of lower trigger-type.To take a blood sample through 20 human simulations the result of stressed detection experiment, the deduction confirming above be objectively, real.In addition, the multiplex injection structure of elastomeric element of this kind of known hemostix replaces steel spring, because its shortcoming is introduced above, therefore is not repeating at this.This kind of hemostix is republican indivedual enterprise in the industry of Europe Poland attempting comparatively early, Pekinese " Rui Chengyi material Science and Technology Ltd. " have also been made a little trial in recent years, it is welcome that its market acceptance can not show a candle to steel spring puncture device, fails to grow up because of its inborn shortcoming always.
3) other trigger-type " disposable safe hemostix ".The trigger mechanism design of this kind of hemostix is in the side of hemostix overcoat, and with the products for export of " Suzhou Shilai Medical Appliances Co., Ltd. " " disposable safe card-locked type BA type hemostix ", for representative, its product account for the half of the country of this enterprise again.Because of should " disposable safe hemostix " when taking a blood sample, on the finger abdomen only needing thumb and forefinger to be fixed on by hemostix by the person of adopting, and keep close contact to stablize with vertical, send out carrying out other striking with middle finger.Because being other trigger-type percussion hemostix, its trigger stressed be horizontal, its trigger force non-conducting are given and are referred to abdomen, so fundamentally completely eliminate the various congenital shortcoming that lower trigger-type and upper trigger-type exist.Patient completely can according to by the person of adopting sex, age, the quality of work be engaged in, refer to the concrete condition such as the thin tender of Pericarpium Arecae skin and cuticular keratinization hypertrophy (being commonly called as callus when hypertrophy is blocked up) degree, grasp hemostix and the contact force and the downforce that refer to abdomen by the person of adopting flexibly, and then realize best blood sampling effect.This kind of other trigger-type " disposable safe hemostix ", is the hemostix of preferably welcoming by doctors and patients, is finally expected to replace " lower trigger-type and the upper trigger-type " hemostix that there is congenital shortcoming thus.
In addition, it needs to be noted: although " the disposable safe card-locked type BA type class hemostix " of " Suzhou Shilai Medical Appliances Co., Ltd. " has many merits, be also developing direction from now on.But just still there are following 3 weak points in the tectonic sieving of this hemostix.Now do brief introduction and analysis:
1) because only lock and the trigger mechanism of this type hemostix designs respectively on the both sides sidewall of hemostix square overcoat and trigger mechanism is slightly aobvious complicated, and cause cannot realizing when injection molding disposal molding, this hemostix square overcoat must be made impartial split-type design, split type independent die sinking, after two semi-finished product process, also need to be re-started assembling.Therefore not only make part processing cost increase to some extent, also add the assembly cost of product simultaneously.
2) because the needle handle of this type hemostix have employed the design of Y-shaped type shape, the gag lever post of two advance and retreat pins of this Y-shaped is installed in the corresponding slide groove on the inner surface of square overcoat both sides sidewall respectively, plays the object of the rectilinear motion controlling blood taking needle.But because of the structure of the gag lever post of two advance and retreat pins of this Y-shaped comparatively thin (the most carefully place is 1.4X 1.4mm) longer (7.5mm), the modification amount because of two bars must be caused to be difficult to comparatively greatly guarantee required precision that is spacing and that slide; And this Y type needle handle is again the injection mo(u)lding of plastic material, the type degeneration of its plastics is very big and rigidity is low again, finally be used in this kind of hemostix advance and retreat pin spacing on, two kinds of results except normal must be there are: one is that Y-shaped two gag lever post is obviously widened because type becomes sometimes, because exceeding tolerance limit scope, add with the frictional resistance of slide groove and the limited kinetic energy of loss, cause inserting needle speed to reduce, and increased the weight of inserting needle pain; Two is that Y-shaped two gag lever post obviously narrows because type becomes sometimes, because of significantly beyond lower variation of tolerance scope, cause the excesssive gap of blood taking needle needle handle in slide groove, occur that blood taking needle can not rectilinear motion, and show as a kind of inserting needle track of oscillatory, increasing the weight of of inserting needle pain can be caused equally.
3) because the only locking plate of this type hemostix designs on the both sides sidewall of hemostix square overcoat with trigger mechanism respectively, when assembling because the needle handle of blood taking needle is spacing and lock by only locking plate, and then achieve the compression of percussion spring and treat cock.And when taking a blood sample, be located at two frizzens on the trigger of the trigger mechanism of only locking plate opposite side, because being pressed down (because of the outer cover conjoined in one end and square pressing handle by near vertical, the a bit of of circular path has been taken so be actually) and formed with only locking plate and contact, masterpiece is also used in only on locking plate by the remarkable increasing stressed along with the near vertical of two feeler levers, finally cause only locking plate because of the stressed excessive and modification that significantly bends, (process of disengaging is again the process of a sliding friction to make blood sampling needle handle depart from only locking plate, just wasted work is extremely low) and complete triggering order, and realize blood sampling.And be prevent the type of only locking plate from becoming the normal assembling of impact and normally using, the only locking plate of this plastic material necessarily has certain flexural strength (identical with measured result).And the problem of exist actually is, the principle of the trigger mechanism of this kind of hemostix departs from blood taking needle needle handle (process now departed from contacts slip partly containing stopping locking plate with needle handle) by stopping the powerful stressed flexure type of locking plate to become, therefore it will realize blood sampling triggering, the stressed flexure type that just synchronously must complete only locking plate becomes and stops the sliding friction of locking plate and needle handle, the essence of problem is, patient drives two frizzens to give the bending deformation power of only locking plate by trigger, significantly to be greater than simple sliding friction releasing force (this is apparent on mechanics), therefore simple sliding friction unlocking manner can be significantly greater than because triggering the strength unlocked when reality is taken a blood sample, finger sometimes because being responsible for pressing down triggering can not become satisfied cooperation because downforce is comparatively large with other responsible two finger-types stablizing needle body, and affect verticality and the stability of blood taking needle needle body, or make hemostix occur slight swing and increase the weight of pain in collecting sense.Therefore for this kind of spacing only lock and the principle and method that trigger to unlock, should not be best prefered method.
In a word, be the hemostix of representative with the other trigger-type hemostix that " Suzhou Shilai Medical Appliances Co., Ltd. " produces, because there is the deficiency slightly of upper 3, be still necessary to carry out structural innovative design or improve improving, reach the effect of making something perfect even more perfect.
Summary of the invention
The present invention for solve in known technology the technical problem that exists and providing a kind of and reduce costs, adapting to all kinds of finger abdomen situation by adopting colony, the lever that alleviates inserting needle pain unlocks triggering disposable safe hemostix by integral type.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is:
A kind of lever lock solution integral type is other triggers disposable safe hemostix, and comprise overcoat, the leading section of overcoat is provided with needle outlet, and the rearward end of overcoat is opening end, be placed in the blood taking needle of overcoat inner chamber and percussion spring and the bonnet being packed in opening end, wherein blood taking needle is made up of needle handle and the needle body be arranged on needle handle, the needle portion of needle body is stretched out from the front end of needle handle, and needle handle forms linear slide with the inner surface of sleeve side wall and is connected, the percussion leading section of spring is connected with the rear portion of needle handle, and the rearward end of percussion spring is connected with bonnet, and the sterile sealing structure to be connected with needle portion, it is characterized in that: also include lock and separate lever, sleeve side wall is provided with a lock solution lever providing holes along the cover length direction of overcoat, lock is separated lever and is placed in lock solution lever providing holes, described lock is separated lever and is formed by the connecting portion and overcoat integrated injection molding being symmetricly set on its two sides, above-mentionedly form with the connecting portion of overcoat integrated injection molding the fulcrum locked and separate lever, be that lock solution lever is divided into lock solution resistance arm and lock solution power arm by separation with fulcrum, the leading section that resistance arm is positioned at overcoat separated by wherein said lock, lock separates the rearward end of lever for lock solution power arm, the inner surface of overcoat internal resistance arm is provided with only lock station terrace, position near front end on needle handle is provided with spacing table top, only lock station terrace matches with spacing table top and forms the locking structure of blood taking needle, and make percussion spring be in compression to treat cock, the outer surface that the rearward end of power arm separated by lock is provided with the press section of stretching out sleeve side wall, and described press section forms lock solution lever and unlocks and discharge the pressing handle of blood taking needle.
The technical scheme that the present invention can also take is:
Described sterile sealing structure is the sealing cap be connected with needle portion one, and the leading section of sealing cap is stretched out from the needle outlet of overcoat leading section.
Also comprise protective cap, described protective cap adapter sleeve is contained in the leading section of overcoat, and the leading section that resistance arm separated by lock is inserted in the inner chamber of protective cap, and is adjacent to mutually with the inner surface of protective cap sidewall; Be provided with the through hole passed for described sealing cap in the bottom of protective cap, the leading section of sealing cap is stretched out in this through hole.
The outer bottom of protective cap is provided with a circle lug, and the height of described lug is greater than the length that sealing cap stretches out from the bottom of protective cap.
Described sterile sealing structure is integral type pin cap, and integral type pin cap is made up of the inner sleeve be sleeved in needle portion and the outer cap portion being sleeved on overcoat leading section, forms ring cavity between outer cap portion and inner sleeve; The leading section that resistance arm separated by lock is inserted in described ring cavity, and is adjacent to mutually with the inner surface of outer cap portion sidewall.
Described percussion spring is tension and compression mixing spring, and it is made up of coaxial Compress Spring part and extension spring part.
Described Compress Spring part is coniform or cylindric, and described extension spring part is cylindric, and the end of Compress Spring part is connected with the rear portion of needle handle, and the end of extension spring part is connected with bonnet.
The shape of described overcoat is that rectangular shape or rear end are rectangle, front end is that oblong transition connects shape; Described lock is separated lever providing holes and is arranged on a wherein leptoprosopy sidewall of overcoat; Between the inner surface and needle handle of overcoat two loose sidewalls, sliding connection structure is set.
Described sliding connection structure is by two slide grooves symmetrical on the inner surface being arranged on overcoat two loose side arms and be arranged on two guide vanes symmetrical on needle handle and form, two guide vanes slide respectively and are inserted in the slide groove of respective side, the leading section of two slide grooves is provided with the strut rail face controlling hemostix depth of needle, the rearward end of two slide grooves extends to the rear end face of overcoat, and each position that slide groove is being positioned at overcoat rearward end is equipped with guiding conical surface.
The advantage that the present invention has and good effect are:
1, only lock and the lock solution lever unlocked by the integrated injection molding arranged on the coat realize the realization of this hemostix, its compared to existing by only lock and release mechanism are separately positioned on the structure in the two opposite side walls of overcoat, significantly simplify jacket structure, lever integrated injection molding separated by overcoat and lock, only need a set of injection mold, both reduce die cost like this, also save the assembly cost of overcoat and save built-up time, causing production cost significantly to reduce.
2, this hemostix is because being novel other trigger-type hemostix, thus the congenital shortcoming that lower trigger-type and upper trigger-type two class hemostix exist is overcome, and can according to all kinds of finger abdomen concrete condition by adopting colony, adopt different downforce and complete desirable blood sampling, and then realizing the maximum efficiency alleviating inserting needle pain.
3, when this hemostix is taken a blood sample, overcoat is stablized with thumb and forefinger, with middle finger by the pressing handle part separating lever at lock, inwardly light pressure, makes lock solution resistance arm part tilt along fulcrum, and the only lock station terrace that lever separated by the spacing table top of such needle handle and lock is departed from by sliding friction, under the effect of rear end percussion spring, blood taking needle is descending, punctures and refers to Pericarpium Arecae skin, realizes blood sampling.This hemostix is adopted to take a blood sample, the unlocking pressure be applied on lock solution lever is significantly less than the unlocking pressure applied on existing structure, like this, the finger being responsible for pressing lock solution lever just can become satisfied cooperation with two finger-types being responsible for stablizing overcoat, thus improve hemostix and refer to the verticality that side grafting is touched and stability, avoid hemostix and occur slight swing, thus reduce the pain of blood sampling.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the perspective view 1 of Fig. 1;
Fig. 4 is the perspective view 2 of Fig. 1;
Fig. 5 is the structural representation of the second embodiment of the present invention;
Fig. 6 is the B-B sectional view of Fig. 5;
Fig. 7 is the perspective view 1 of Fig. 5;
Fig. 8 is the perspective view 2 of Fig. 5;
Fig. 9 is the structural representation of tension and compression mixing spring.
In figure: 1, overcoat; 110, needle outlet; 120, lever providing holes separated by lock; 130, slide groove; 131, strut rail face; 132, guiding conical surface; 2, blood taking needle; 210, needle handle; 211, spacing table top; 212, guide vane; 220, needle body; 3, spring is pulled the trigger; 310, Compress Spring part; 320, extension spring part; 4, bonnet; 5, lever separated by lock; 510, fulcrum; 520, resistance arm separated by lock; 521, lock station terrace is stopped; 530, power arm separated by lock; 531, hands handle is pressed; 6, sealing cap; 7, protective cap; 710, lug; 8, integral type pin cap; 810, inner sleeve; 820, outer cap portion.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Embodiment 1:
Refer to Fig. 1-4 and 9, a kind of lever lock solution integral type is other triggers disposable safe hemostix, and comprise overcoat 1, the leading section of overcoat is provided with needle outlet 110, and the rearward end of overcoat is opening end; Be placed in the blood taking needle 2 of overcoat inner chamber and percussion spring 3 and the bonnet 4 being packed in overcoat opening end, the connected mode of bonnet and overcoat opening end is referring to existing structure.Wherein blood taking needle is made up of needle handle 210 and the needle body 220 be arranged on needle handle, and the needle portion of needle body is stretched out from the front end of needle handle, and needle handle forms linear slide with the inner surface of sleeve side wall and is connected.The percussion leading section of spring is connected with the rear portion of needle handle, and the rearward end of percussion spring is connected with bonnet.The both ends of percussion spring and the connected mode of needle handle rear portion and bonnet are referring to prior art, and the sterile sealing structure to be connected with needle portion, also include lock and separate lever 5, sleeve side wall is provided with a lock solution lever providing holes 120 along the cover length direction of overcoat, lock is separated lever and is placed in lock solution lever providing holes, described lock is separated lever and is formed by the connecting portion and overcoat integrated injection molding being symmetricly set on its two sides, above-mentionedly form with the connecting portion of overcoat integrated injection molding the fulcrum 510 locked and separate lever, be that lock solution lever is divided into lock solution resistance arm 520 and lock solution power arm 530 by separation with fulcrum, the leading section that resistance arm is positioned at overcoat separated by wherein said lock, lock separates the rearward end of lever for lock solution power arm, the inner surface of overcoat internal lock solution resistance arm is provided with only lock station terrace 521, position near front end on needle handle is provided with spacing table top 211, only lock station terrace matches with spacing table top and forms the locking structure of blood taking needle, and make percussion spring be in compression to treat cock, the outer surface that the rearward end of power arm separated by lock is provided with the press section of stretching out sleeve side wall, described press section forms lock solution lever and unlocks and discharge the pressing handle 531 of blood taking needle.Above-mentioned lock solution lever providing holes can adopt the various shapes such as common oblong aperture, slotted hole; Above-mentionedly can adopt joint pin structure, brace structure etc. with the connecting portion of overcoat integrated injection molding; Above-mentioned spacing table top can be formed by the front end face of the spacing preiection on the side being arranged on blood taking needle needle handle or on relative two sides, can alleviate the weight of needle handle so as far as possible.Consider from the angle of satisfied use, the spacing table top of side only need be set, the object arranging the spacing table top in both sides is: in the process of hemostix assembling, the spacing table top of both sides all can use, like this, compare with only in the one-sided structure arranging spacing table top, just add motility and the convenience of assembling, also save built-up time.
In the present embodiment, described sterile sealing structure is the sealing cap 6 be connected with the needle portion one of needle body, and the leading section of sealing cap is stretched out from the needle outlet of overcoat leading section.Concrete, sealing cap and blood taking needle needle handle are by one set of die integrated injection molding, and the rearward end of such needle body fixes plastic packaging in needle handle, and the front end needle portion plastic packaging of needle body is in sealing cap.When taking a blood sample, sealing cap being rotated a few circle, sealing cap can be taken off from needle body, thus the needle portion of needle body is come out, and then realize follow-up percussion blood sampling.
On the basis adopting sealing cap; described disposable blood taking device also can comprise protective cap 7 further; described protective cap adapter sleeve is contained in the leading section of overcoat, and the leading section that resistance arm separated by lock is inserted in the inner chamber of protective cap, and and is adjacent to mutually with the inner surface of protective cap sidewall.Concrete, when locking the outer surface separating lever and exceeding the outer surface of sleeve side wall, the position can separated near end on resistance arm at lock arranges cascaded surface, the outer surface of itself and sleeve side wall is made to be positioned on same contoured surface, like this, lock is separated the inner surface that the end of resistance arm will be adjacent to protective cap sidewall and is inserted in the inner chamber of protective cap; When the lock solution outer surface of lever and the outer surface of sleeve side wall are positioned on same contoured surface, just do not need the position of separating near end on resistance arm at lock to arrange cascaded surface, locking the end of separating resistance arm can directly be inserted in the inner chamber of protective cap.Bottom protective cap, be provided with the through hole passed for described sealing cap, the leading section of sealing cap is stretched out in this through hole.The effect arranging above-mentioned protective cap in the leading section of overcoat is: avoid hemostix to meet in transportation extruding, and touches lock and separate lever, and hemostix mistakenly hit is sent out, or in the other cases, and cause hemostix mistakenly hit to be sent out.
On the basis adopting above-mentioned protective cap, the outer bottom of protective cap is provided with a circle lug 710 further, the height of described lug is greater than the length that sealing cap stretches out from the bottom of protective cap.The object arranging above-mentioned lug in the bottom of protective cap is: can by hemostix with install protective cap one end be positioned at below mode be placed into packing box; like this; when medical personnel take a blood sample; take out hemostix in packing box after; do not need to change direction; just the finger abdomen can directly aimed at by the person of adopting carries out blood sampling operation, thus alleviates the workload of medical personnel and save the operating time.
In said structure, described percussion spring can adopt common cylindrical or conical stage clip structure, and in the present invention, described percussion spring preferably adopts tension and compression mixing spring, and it is made up of coaxial Compress Spring part 310 and extension spring part 320.Tension and compression mixing spring is more preferably: described Compress Spring part is coniform or cylindric, and described extension spring part is cylindric, and the end of Compress Spring part is connected with the rear portion of needle handle, and the end of extension spring part is connected with bonnet.Adopt tension and compression mixing spring structure, can improve inserting needle speed, thus obviously reduce the pain of inserting needle, even reach painless blood sampling, concrete reason is shown in following detailed description.
In said structure, the shape of described overcoat is preferably: rectangular shape or rear end are rectangle, front end is that oblong transition connects shape etc., the jacket structure of rectangular shape is see accompanying drawing 3 and 7, and rear end is rectangle, front end is that oblong transition connects the needle guard structure of shape see accompanying drawing 4 and 8; Described lock is separated lever providing holes and is arranged on a wherein leptoprosopy sidewall of overcoat; Between the inner surface and needle handle of overcoat two loose sidewalls, sliding connection structure is set.Like this, when triggering lock and separating lever, separate power arm end for lock and enter into overcoat inner chamber and reserved enough spaces, avoid lock and separate power arm end and interfere with percussion spring, and the release of impact percussion spring.
In said structure, described needle handle is connected with the inner surface linear slide of sleeve side wall and can adopts various structures to realize.Contact to be formed as by the partial lateral face of needle handle and the local inner surface of sleeve side wall direct and be slidably connected, when adopting this kind of sliding connection structure, need shape for overcoat inner chamber to design the shape of needle handle.The deficiency of this kind of sliding connection structure existence is: the volume of needle handle is comparatively large, and the contact area of needle handle lateral surface and sleeve side wall inner surface is comparatively large, causes frictional resistance to increase, thus can reduce inserting needle speed.In the present invention, the linear slide syndeton of needle handle and sleeve side wall inner surface is preferably: described sliding connection structure is by two slide grooves 130 symmetrical on the inner surface being arranged on overcoat two loose sidewalls and be arranged on two guide vanes 212 symmetrical on needle handle and form, two guide vanes slide respectively and are inserted in the slide groove of respective side, the leading section of two slide grooves is provided with the strut rail face 131 controlling hemostix depth of needle, namely certain distance is left between the leading section of two slide grooves and the inner bottom surface of overcoat, like this in the process of blood sampling inserting needle, when on the strut rail face that the front end of the guide vane of both sides is against slide groove front end, needle handle stops descending, now needle portion penetrates into and refers to that the degree of depth in abdomen is consistent with the depth of needle of setting by the person of adopting.The rearward end of two slide grooves extends to the rear end face of overcoat, and each slide groove is equipped with guiding conical surface 132 in the position being positioned at overcoat rearward end.
Embodiment 2:
Refer to Fig. 5-9, the difference of the present embodiment and embodiment 1 is: described sterile sealing structure is integral type pin cap 8, and integral type pin cap is made up of with the outer cap portion 820 being sleeved on overcoat front end the inner sleeve 810 be sleeved in needle portion; Ring cavity is formed between outer cap portion and inner sleeve; The leading section that resistance arm separated by lock is inserted in described ring cavity, and is adjacent to mutually with the inner surface of outer cap portion sidewall.This integral type pin cap seals the needle portion of needle body by inner sleeve, push down the leading section that resistance arm separated by lock on the other hand, avoid when pin cap does not take off by outer cap portion, and malfunction lock is separated lever and occurs the situation that hemostix mistakenly hit is sent out.This integral type pin cap set function of above-mentioned sealing cap and protective cap, simplifies the structure.
The inventor of present patent application is devoted to the research in tip blood sampling and venous blood collection field for many years always, and has declared multinomial patent.The deficiency that inventor exists for current " disposable safe hemostix ", through years of researches trial-production and failure, the final inspiration being subject to through-carved work skill in the silver hair declining years, and utilize the lever principle in mechanics, invent and manufacture experimently into " a kind of lever lock solution integral type is other triggers disposable safe hemostix ", and preferably resolve the deficiency of background technology existence, specific as follows:
1. the invention of " a kind of lever lock solution integral type is other triggers disposable safe hemostix ", the sleeve side wall that side on the outer cover of hemostix beyond the ingenious slide groove utilizing a pair symmetry is idle, and utilize material own and the effective area of sleeve side wall, its direct injection molding is become to have the bifunctional lock of the locking and unlocking and separates lever.The fulcrum of lock solution lever and sleeve side wall are integral type when injection moulding and are connected, and it is also synchronous injection molded that power arm separated by lock solution resistance arm and lock, and form enough free gap with the four sides of the lock solution lever providing holes put outward; Be injected with only lock station terrace in the inner surface appropriate location of resistance arm simultaneously, play the object of locking hemostix needle handle.Also be injected with pressing handle in the outer surface end of power arm simultaneously, play hemostix and press down when taking a blood sample the triggering unlocking function that its handle completes hemostix.The good effect of this invention is: preferably resolve the other hemostix that triggers of existing main flow needs design separately stop lock and trigger release mechanism in structural design, although or be also by only lock and triggering release mechanism design on sleeve side wall, but because being by only lock and release mechanism design respectively on two sidewalls of same overcoat, and cause this overcoat must carry out split design, split manufacture and assembling.Final or because of structure slightly aobvious complicated or processing trouble is bothersome and cause cost of material, manufacturing cost and assembly cost higher, and increased the weight of the expense expenditure of hospital and patient, brought to the sale of enterprise and the competing Fight in market certain unfavorable simultaneously.The list of main product is propped up manufacturing cost expense and is reduced to about 0.17 yuan by about present 0.23 yuan by this disposable blood taking device, this needs the hemostix of the medical disposable material product of taping the latent power of red cent red cent to enterprise in the industry, is in all fairness once improve significantly really.
2. the invention of " a kind of lever lock solution integral type is other triggers disposable safe hemostix ", for the universal of other trigger-type " disposable safe hemostix " adds the new vigor of newcomer with growth, also the blood sampling pain for alleviating child and infant provides new selection, more in order to outstanding hommization medical services for aim, there is " lower trigger-type and upper trigger-type " hemostix of congenital shortcoming (make a concrete analysis of auspicious see " background technology ") in final replacement, brings new hope.
3. the invention of " a kind of lever lock solution integral type is other triggers disposable safe hemostix ", under the prerequisite of " disposable safe card-locked type BA type hemostix " many merits remaining " Suzhou Shilai Medical Appliances Co., Ltd. ", also overcome 3 weak points (referring to " background technology ") that this hemostix exists simultaneously, the combination property of this series products and effect are further improved and raising.
4. the invention of " a kind of lever lock solution integral type is other triggers disposable safe hemostix ", extremely responsive again with child and the infant colony of blood sampling fear for nerve, because of the pain difficult problem caused of taking a blood sample, achieve satisfied solution and actual effect.There is as one the professional person of more than 40 years working experience in the industry.In all fairness, present main flow " disposable safe hemostix ", the take a blood sample pain that causes of the tip for adult can tolerate completely and accept.But extremely responsive again with the frightened child of blood sampling and infant colony for nerve, the pain problem caused because taking a blood sample not only show as significantly outstanding with increase the weight of, and because of child misery expression with cry and scream, also must cause distressed with every generation old man of father and mother.
The present invention is directed to that to alleviate be very the problem eliminating inserting needle pain, two kinds of concrete solutions can be have employed in practice.Be the ordinary steel superzapping spring adopting the simple function widely used in the industry now, make plain edition " disposable safe hemostix ", use object for the use of the tip blood sampling of adult.The second adopts the above-mentioned hybrid spring of tension and compression, makes " the child's Painless type disposable safe hemostix " that aim at child and infant colony independent design.Main cause is: as present main flow " disposable safe hemostix ", because be all the advance and retreat pin function of employing stage clip when completing blood sampling.We know and want inserting needle not bitterly, and the speed of its inserting needle just must exceed the nerve conduction velocity of peripheral nerve 50m/s.Although good stage clip can drive blood taking needle, realize the inserting needle speed more than 50m/s, because some loss because of reactive power is excessive, therefore the pain in collecting caused or hypodynia are known indisputable facts.Reason is, only namely will complete inserting needle function with a stage clip completes withdraw of the needle function again, and in order to realize, advance and retreat pin function will stage clip be rigid imparts extension spring function.And cause the work process of stage clip to be first postpone to draw.And the process of drawing is exactly down speeding procedure, because the opposition that stage clip is contrary exactly with function with the service condition of extension spring, as around and with it, to be in the stage clip (drift or be free height) of free stretched condition, 3-4mm is elongated in brute force, for completing last inserting needle and withdraw of the needle stroke, many more than several times of the single-minded extension spring that its power paid is more equivalent than condition.Result be for reduce costs and economized one section of extension spring while also significantly reduce inserting needle speed, cause inserting needle to be keenly felt and significantly strengthen.Concrete solution, under ensureing that " medical disposable material " needs the prerequisite of simple cheap convenient and practical Eight characters principle, the ordinary steel superzapping spring of the final simple function because will widely use in the industry now, change the outfit " tension and compression mixing spring " (see the accompanying drawing 9) that be transformed into and have tension and compression mixed function, in the advance and retreat needle stroke completing last 3-4mm equally, but utilize the extension spring characteristic of lowering and work-saving and save the waste of more than several times kinetic energy, finally making the speed of inserting needle be equal to or be greater than the perineural conduction velocity of 50m/s.And the comparatively satisfied blood sampling pain difficult problem solving child and infant colony.Achieve maximized people's sex service.And small size on probation in, obtain common accreditation and the welcome of doctor and patient.
The other operation instruction triggering disposable safe hemostix of this lever lock solution integral type:
When the sealing cap structure that the sterile sealing structure of hemostix adopts the one in embodiment 1 to connect, the process of blood sampling is:
The first step: first refer to two leading section pinching sealing cap, sealing cap is rotated a few circle, extracts with by the front end of sealing cap from overcoat, the needle portion of needle body is come out;
Second step: pull up the protective cap being arranged on overcoat leading section, like this, the fore-end that resistance arm separated by lock has just departed from the constraint of protective cap;
3rd step: hold hemostix with finger, makes the needle outlet of overcoat leading section align finger abdomen by the person of adopting;
4th step: with being held in pressing hands handle hemostix arranging finger that lock separates lever side pressing lock solution power arm end gently, under the effect of pressing force, resistance arm separated by lock is that basic point outwards tilts gradually with fulcrum, when locking solution resistance arm and tilting certain angle, the limiting stand face of only lock station terrace and blood taking needle needle handle front end that lock is separated on the inner surface of resistance arm disengages, like this under the effect of rear end percussion spring, blood taking needle is descending instantaneously, penetrate into and refer in abdomen, then under the effect of percussion spring again in fast retractile overcoat, and then medical personnel realize blood sampling.
When the sterile sealing structure of hemostix adopts the integral type pin cap in embodiment 2, the process of blood sampling: first pull up pin cap from the leading section of needle guard, now the needle portion of needle body comes out, and the fore-end that resistance arm separated by lock has also departed from the constraint of protective cap simultaneously; Next the 3rd above-mentioned step and the 4th step is carried out.
Claims (9)
1. lever lock solution integral type is other triggers a disposable safe hemostix, and comprise overcoat, the leading section of overcoat is provided with needle outlet, and the rearward end of overcoat is opening end, be placed in the blood taking needle of overcoat inner chamber and percussion spring and the bonnet being packed in opening end, wherein blood taking needle is made up of needle handle and the needle body be arranged on needle handle, the needle portion of needle body is stretched out from the front end of needle handle, and needle handle forms linear slide with the inner surface of sleeve side wall and is connected, the percussion leading section of spring is connected with the rear portion of needle handle, and the rearward end of percussion spring is connected with bonnet, and the sterile sealing structure to be connected with needle portion, it is characterized in that: also include lock and separate lever, sleeve side wall is provided with a lock solution lever providing holes along the cover length direction of overcoat, lock is separated lever and is placed in lock solution lever providing holes, described lock is separated lever and is formed by the connecting portion and overcoat integrated injection molding being symmetricly set on its two sides, above-mentionedly form with the connecting portion of overcoat integrated injection molding the fulcrum locked and separate lever, be that lock solution lever is divided into lock solution resistance arm and lock solution power arm by separation with fulcrum, the leading section that resistance arm is positioned at overcoat separated by wherein said lock, lock separates the rearward end of lever for lock solution power arm, the inner surface of overcoat internal resistance arm is provided with only lock station terrace, position near front end on needle handle is provided with spacing table top, only lock station terrace matches with spacing table top and forms the locking structure of blood taking needle, and make percussion spring be in compression to treat cock, the outer surface that the rearward end of power arm separated by lock is provided with the press section of stretching out sleeve side wall, and described press section forms lock solution lever and unlocks and discharge the pressing handle of blood taking needle.
2. lever lock solution integral type according to claim 1 is other triggers disposable safe hemostix, it is characterized in that: described sterile sealing structure is the sealing cap be connected with needle portion one, and the leading section of sealing cap is stretched out from the needle outlet of overcoat leading section.
3. lever lock solution integral type according to claim 2 is other triggers disposable safe hemostix, it is characterized in that: also comprise protective cap, described protective cap adapter sleeve is contained in the leading section of overcoat, the leading section that resistance arm separated by lock is inserted in the inner chamber of protective cap, and is adjacent to mutually with the inner surface of protective cap sidewall; Be provided with the through hole passed for described sealing cap in the bottom of protective cap, the leading section of sealing cap is stretched out in this through hole.
4. lever lock solution integral type according to claim 3 is other triggers disposable safe hemostix, it is characterized in that: on the outer bottom of protective cap, be provided with a circle lug, and the height of described lug is greater than the length that sealing cap stretches out from the bottom of protective cap.
5. lever lock solution integral type according to claim 1 is other triggers disposable safe hemostix, it is characterized in that: described sterile sealing structure is integral type pin cap, integral type pin cap is made up of the inner sleeve be sleeved in needle portion and the outer cap portion being sleeved on overcoat leading section, forms ring cavity between outer cap portion and inner sleeve; The leading section that resistance arm separated by lock is inserted in described ring cavity, and is adjacent to mutually with the inner surface of outer cap portion sidewall.
6. lever lock solution integral type according to claim 1 is other triggers disposable safe hemostix, it is characterized in that: described percussion spring is tension and compression mixing spring, and it is made up of coaxial Compress Spring part and extension spring part.
7. lever lock solution integral type according to claim 6 is other triggers disposable safe hemostix, it is characterized in that: described Compress Spring part is coniform or cylindric, described extension spring part is cylindric, the end of Compress Spring part is connected with the rear portion of needle handle, and the end of extension spring part is connected with bonnet.
8. lever lock solution integral type according to claim 1 is other triggers disposable safe hemostix, it is characterized in that: the shape of described overcoat is that rectangular shape or rear end are rectangle, front end is that oblong transition connects shape; Described lock is separated lever providing holes and is arranged on a wherein leptoprosopy sidewall of overcoat; Between the inner surface and needle handle of overcoat two loose sidewalls, sliding connection structure is set.
9. lever lock solution integral type according to claim 8 is other triggers disposable safe hemostix, it is characterized in that: described sliding connection structure is by two slide grooves symmetrical on the inner surface being arranged on overcoat two loose side arms and be arranged on two guide vanes symmetrical on needle handle and form, two guide vanes slide respectively and are inserted in the slide groove of respective side, the leading section of two slide grooves is provided with the strut rail face controlling hemostix depth of needle, the rearward end of two slide grooves extends to the rear end face of overcoat, and each position that slide groove is being positioned at overcoat rearward end is equipped with guiding conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510038509.XA CN104545945A (en) | 2015-01-26 | 2015-01-26 | Lever-locked integrated type side-triggered disposable blood collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510038509.XA CN104545945A (en) | 2015-01-26 | 2015-01-26 | Lever-locked integrated type side-triggered disposable blood collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104545945A true CN104545945A (en) | 2015-04-29 |
Family
ID=53063797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510038509.XA Pending CN104545945A (en) | 2015-01-26 | 2015-01-26 | Lever-locked integrated type side-triggered disposable blood collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104545945A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264561A (en) * | 2016-08-25 | 2017-01-04 | 天津华鸿科技股份有限公司 | A kind of side trigger-type hemostix |
| CN107569243A (en) * | 2017-08-30 | 2018-01-12 | 天津华鸿科技股份有限公司 | A kind of blood sampling collection from heel device |
| WO2019119382A1 (en) * | 2017-12-21 | 2019-06-27 | 符仲华 | Needle feeder and application thereof |
| CN111166348A (en) * | 2018-11-12 | 2020-05-19 | 天津华鸿科技股份有限公司 | Blood taking needle |
| CN113100763A (en) * | 2021-04-06 | 2021-07-13 | 首都医科大学宣武医院 | Safe vein blood taking needle capable of automatically retracting and destroying |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4822343A (en) * | 1987-09-21 | 1989-04-18 | Louise Beiser | Blood collection device with ejectable tips |
| WO2003095002A1 (en) * | 2001-01-24 | 2003-11-20 | North American Medical Products, Inc. | Spring-loaded needle protective assembly for multi-draw needle |
| CN2678565Y (en) * | 2004-02-23 | 2005-02-16 | 王庆祝 | Disposable blood taking needle |
| CN2706129Y (en) * | 2004-03-24 | 2005-06-29 | 施国平 | Disposable safety automatic blood taking needle ejecting protective device |
| CN2734139Y (en) * | 2004-06-21 | 2005-10-19 | 杨莲英 | Disposable blood taking needle |
| CN201353148Y (en) * | 2009-02-20 | 2009-12-02 | 郑州优德实业股份有限公司 | Disposable hemostix |
| CN102028479A (en) * | 2010-12-06 | 2011-04-27 | 王振民 | One-off safe and indolent contact pressure type hemostix |
| CN204468097U (en) * | 2015-01-26 | 2015-07-15 | 王振民 | A kind of lever lock solution integral type is other triggers disposable safe hemostix |
-
2015
- 2015-01-26 CN CN201510038509.XA patent/CN104545945A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4822343A (en) * | 1987-09-21 | 1989-04-18 | Louise Beiser | Blood collection device with ejectable tips |
| WO2003095002A1 (en) * | 2001-01-24 | 2003-11-20 | North American Medical Products, Inc. | Spring-loaded needle protective assembly for multi-draw needle |
| CN2678565Y (en) * | 2004-02-23 | 2005-02-16 | 王庆祝 | Disposable blood taking needle |
| CN2706129Y (en) * | 2004-03-24 | 2005-06-29 | 施国平 | Disposable safety automatic blood taking needle ejecting protective device |
| CN2734139Y (en) * | 2004-06-21 | 2005-10-19 | 杨莲英 | Disposable blood taking needle |
| CN201353148Y (en) * | 2009-02-20 | 2009-12-02 | 郑州优德实业股份有限公司 | Disposable hemostix |
| CN102028479A (en) * | 2010-12-06 | 2011-04-27 | 王振民 | One-off safe and indolent contact pressure type hemostix |
| CN204468097U (en) * | 2015-01-26 | 2015-07-15 | 王振民 | A kind of lever lock solution integral type is other triggers disposable safe hemostix |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264561A (en) * | 2016-08-25 | 2017-01-04 | 天津华鸿科技股份有限公司 | A kind of side trigger-type hemostix |
| CN107569243A (en) * | 2017-08-30 | 2018-01-12 | 天津华鸿科技股份有限公司 | A kind of blood sampling collection from heel device |
| CN107569243B (en) * | 2017-08-30 | 2021-03-19 | 天津华鸿科技股份有限公司 | Heel hemostix |
| WO2019119382A1 (en) * | 2017-12-21 | 2019-06-27 | 符仲华 | Needle feeder and application thereof |
| CN111166348A (en) * | 2018-11-12 | 2020-05-19 | 天津华鸿科技股份有限公司 | Blood taking needle |
| CN113100763A (en) * | 2021-04-06 | 2021-07-13 | 首都医科大学宣武医院 | Safe vein blood taking needle capable of automatically retracting and destroying |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104545945A (en) | Lever-locked integrated type side-triggered disposable blood collector | |
| KR101251713B1 (en) | Patient's skin puncturing device | |
| CN105496425B (en) | A kind of safety type blood collecting needle construction | |
| CN204468097U (en) | A kind of lever lock solution integral type is other triggers disposable safe hemostix | |
| CN103006240B (en) | Safe and convenient and fast type disposable blood collection needle with double-surface cover cap | |
| CN202497155U (en) | Improved pen-type safe blood taking needle | |
| WO2015062446A1 (en) | Press-type safety blood lancet | |
| CN107569243A (en) | A kind of blood sampling collection from heel device | |
| CN207804721U (en) | A kind of anti-stabbed syringe | |
| CN204468099U (en) | A kind of modified node method of upper triggering disposable safe hemostix | |
| CN109316193B (en) | Disposable micro negative pressure blood sampling and taking device | |
| CN205095146U (en) | Prevent stabbing pjncture needle | |
| CN208372186U (en) | A kind of vacuum extractor | |
| CN203988075U (en) | Safety blood taking needle | |
| CN103239774A (en) | Anti-thrombus anti-coagulation type safe remaining needle | |
| CN104826195A (en) | Novel straight remaining needle | |
| CN204798512U (en) | Pin type safety syringe is unloaded in propulsion | |
| CN204802968U (en) | Medical ampoule bottle -opener | |
| CN208808495U (en) | A kind of blood taking needle | |
| CN102793970A (en) | Separation cut-off clamp for safety vein needle | |
| CN209695207U (en) | Safety blood taking needle with automatic needle return function | |
| CN208372234U (en) | A kind of syringe | |
| CN216628553U (en) | Safety arterial hemostix | |
| CN105726043A (en) | Anti-reflux structure of blood sampling needle | |
| CN206729897U (en) | A kind of improved hemostix |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |