CN102579057B - Safety blood lancet - Google Patents
Safety blood lancet Download PDFInfo
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- CN102579057B CN102579057B CN2011103516526A CN201110351652A CN102579057B CN 102579057 B CN102579057 B CN 102579057B CN 2011103516526 A CN2011103516526 A CN 2011103516526A CN 201110351652 A CN201110351652 A CN 201110351652A CN 102579057 B CN102579057 B CN 102579057B
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- door bolt
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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
- 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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- 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
- A61B5/150175—Adjustment of penetration depth
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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
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
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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
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150503—Single-ended needles
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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
- 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
- A61B5/15101—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
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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
- A61B5/15188—Constructional features of reusable driving devices
- A61B5/1519—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for propelling the piercing unit
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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
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150259—Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
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- 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)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
A safety blood lancet consists of a head and a body, and is characterized in that the head and the body are in plugging connection, a push rod is arranged at the connecting end of the head, a plugging slot is arranged at the connecting end of the body and consists of a slide slot, a transitional slot and a lock slot connected sequentially, a latch is arranged at the end of an elastic arm of an ejecting rod, a tongue is arranged in the front of the latch, and a hook is arranged at the back of the latch. The width of the latch is larger than that of the push rod, the width of the slide slot andthe lock slot is larger than that of the latch, and the width of the transitional slot is larger than that of the push rod while smaller than that of the latch. A stop shoulder is formed at the jointof the slide slot and the transitional slot, a lock shoulder is formed at the joint of the transitional slot and the lock slot, and a push bevel is arranged at the end of the push rod or/and the tongue. Plugging connection of the head and the body and safety in use of the blood lancet are combined in the technical scheme, and possible problem about safety during use of the blood lancet is solved by the plugging structure between the head and the body of the safety blood lancet.
Description
Technical field
The present invention relates to medical blood taking instrument, relate in particular to a kind of and the matching used safety blood collecting pen of disposable blood taking needle.
Background technology
Blood collecting pen is a kind of discharger, the common and supporting use of disposable blood taking needle, and wherein blood collecting pen is reusable, and blood taking needle only is disposable use for fear of cross infection.The development of blood collecting pen has many decades history, wherein many stages has also been experienced in the improvement of blood collecting pen, and blood collecting pen just moves to maturity the stage at present, but safety in utilization remains the problem that those skilled in the art pay close attention in the blood collecting pen evolution.
Chinese patent CN2479917Y once announced the utility model patent of having authorized a name to be called " hemostix ".This patent disclosure be a kind of blood collecting pen, the operational approach before this blood collecting pen uses is: the first step, Unscrew cap; Second step, the disposable blood taking needle of plug-in mounting, and twist the protective cap of blood taking needle; The 3rd step, cap on the rotary sleeve; In the 4th step, the pen cap of pulling blood collecting pen afterbody makes the lock-out state before blood taking needle enters emission, can use.Owing to be subjected to the restriction of technical merit at that time, there is security flaw in the design of this blood collecting pen, namely when the disposable blood taking needle of the second step plug-in mounting, necessarily insert thrust because of needs, may make the lock-out state before trigger mechanism enters emission in advance, the in a single day careless false touch of user this moment is to firing button, and blood taking needle will be launched immediately.This mistakenly launching concerning user may directly damage, and therefore there is potential safety hazard in the design from blood collecting pen.
In order to solve above-mentioned safety issue, Chinese patent CN101518450A discloses the application for a patent for invention case that a name is called " piercing device " afterwards.The technical scheme of this patent application can guarantee can not enter in advance the lock-out state before the emission when the plug-in mounting blood taking needle, having only when cap covers after just, the pen cap of stretchy blood collecting pen afterbody makes trigger mechanism enter the preceding lock-out state of emission.This design has overcome above-mentioned security flaw, but has brought other two aspect problems again thereupon.The firstth, complex structure, the parts manufacture difficulty that has is big, and production cost increases; Second person of being to use because other factors disturbs in the time of can't determining whether to install blood taking needle before, can open cap usually and observe after blood taking needle was installed.Trigger mechanism can produce and mistakenly launch this moment, accidentally also can damage to user, therefore had potential safety hazard equally.
Summary of the invention
It is good to the objective of the invention is to design a kind of safety in utilization, and the simple relatively blood collecting pen of structure, is intended to solve the potential safety hazard that above-mentioned blood collecting pen exists in using operating process.
For achieving the above object, the technical solution used in the present invention is: a kind of safety blood collecting pen, formed by nib and a body two parts, nib inside is provided with ejection chamber vertically, the front end of ejection chamber is provided with needle outlet, be equipped with Rhizoma Belamcandae and shooting spring in the body, the Rhizoma Belamcandae head is provided with the socket of plug-in mounting blood taking needle, body sidepiece is provided with trigger button, body afterbody is provided with the tail handle, the rear end of nib is as first link, and the front portion of a body is to being provided with second link by first link, and its innovation is:
Described first link is connected with the plug of second link.
Described first link is provided with a push rod, and this push rod stretches out and points to second link from first link.
Corresponding described push rod is axially arranged with one section body at second a link upper edge body, and body offers slot vertically on the tube wall of push rod one end, and slot radially runs through tube wall at a body.
The sidepiece of described Rhizoma Belamcandae extends an elastic arm, and the cantilever end of elastic arm is provided with the door bolt head, and the front portion of door bolt head is provided with a door bolt tongue, and the rear portion is provided with a latch dog; Directly make progress at a body, the width of door bolt head is greater than the width of push rod.
Described slot is connected and composed successively by one section sliding tray, one section lead-over groove and one section locked groove on a body is axial, directly make progress at a body, the width of sliding tray and locked groove is greater than the width of door bolt head, and the width of lead-over groove is greater than the width of push rod, simultaneously less than the width of fastening head with a bolt or latch; The junction of sliding tray and lead-over groove is formed with and stops shoulder, and the junction of lead-over groove and locked groove is formed with locked shoulder; Described trigger button is positioned at locked groove top; Described push rod is declined the inclined-plane or/and the end of door bolt tongue is provided with.
When the nib with a status from, and the shooting spring is when being in free state, and the door bolt head is arranged in sliding tray, under this state during to socket plug-in mounting blood taking needle, plug-in mounting thrust forces the latch dog of door bolt back of head to cooperate with stopping shoulder, thereby stops the door bolt head to slide to locked groove from sliding tray; When a nib insertion body connects, push rod inserts sliding tray and lead-over groove thereupon, push rod is by declining inclined-plane promotion door bolt head and elastic arm to a body inside bend distortion during insertion, when under this state, pulling back the tail handle, Rhizoma Belamcandae drives the door bolt head by elastic arm and enters the locked groove from below leap lead-over groove, and enters the lock-out state before the emission.
Related content in the technique scheme is explained as follows:
1. in the such scheme, the implication of " preceding " refers to the nib of blood collecting pen or the firing direction of blood taking needle in described " front end " and " front portion ".Described " rear end ", " rear portion " and in " backward " implication of " back " refer to the opposite direction of a tail or the blood taking needle firing direction of blood collecting pen.
2. in the such scheme, described " body is axial " refers to a body axis direction, also is the nib of blood collecting pen and the direction between the tail, perhaps is fore-and-aft direction.Described " body radially " refers to a body diametric(al), also is the horizontal of blood collecting pen.
3. in the such scheme, "up" and "down" is described with reference to the present invention's direction shown in Figure 3 in described " top ", " making progress ", " below " and " downwards ".Because blood collecting pen of the present invention can rotate around axis, so "up" and "down" is relative, need be with direction shown in Figure 3 as a reference.
4. in the such scheme, also can not trigger the trigger mechanism of blood collecting pen when making blood collecting pen under battery, extract nib.Can be provided with the kayser inclined-plane in the end of locked shoulder, the kayser inclined-plane is towards trigger button, the kayser inclined-plane with decline the inclined-plane and in the space, form and intersect.When setting back after the tail handle pulling, under the elastic force combined effect of the elastic force of shooting spring and elastic arm, fasten with a bolt or latch in the bayonet socket of kayser inclined-plane that procephalic door bolt tongue is resisted against locked shoulder and the formation of push rod end; When pressing trigger button, trigger button acts on the door bolt head, and the door bolt tongue to lower slider, enters shooting state until unhook along the kayser inclined-plane; Under the lock-out state before emission, when nib was extracted from a body, push rod was extracted out from sliding tray and lead-over groove thereupon, and this moment is under the resilient force of shooting spring, the door bolt tongue upwards slides into locked shoulder end face and forms locking state along the kayser inclined-plane, trigger button presses inefficacy under this state.
Design principle of the present invention is: use the safety problem that exists in the operating process in order to solve blood collecting pen, the present invention will be in the past adopts the design that is threaded to change between nib and the body to plug the design that is connected, and the safety that nib is connected with plug between the body with blood collecting pen is operated in use is associated, utilize the written matching relationship of between this three of door bolt head set on set push rod and a set slot and the Rhizoma Belamcandae elastic arm on one's body, use the potential safety hazard that exists in the operating process thereby well solved blood collecting pen.
Because technique scheme is used, the present invention compared with prior art has following advantage and effect:
1. blood collecting pen of the present invention is when the plug-in mounting blood taking needle, because the door bolt head is arranged in sliding tray, plug-in mounting thrust is when driving the door bolt head and move backward, and the latch dog of the door bolt back of head shoulder block that is obstructed stops and stop to move backward, therefore can not make lock-out state before trigger mechanism not enter emission in advance because of plug-in mounting thrust.Have only after nib is inserted a body and connected just stretchy tail handle, make the lock-out state before trigger mechanism enters emission, thereby solved the potential safety hazard that blood collecting pen may exist when blood taking needle is installed.
2. under the lock-out state of the present invention before emission, when nib is extracted from a body, push rod is extracted out from sliding tray and lead-over groove thereupon, this moment is under the resilient force of shooting spring, the door bolt tongue upwards slides into locked shoulder end face and forms locking state along the kayser inclined-plane, under this state trigger button press inefficacy, open the potential safety hazard that the blood collecting pen nib may exist thereby solved.
3. the present invention is associated the safety that is connected between nib and the body with blood collecting pen is operated in use, connect-disconnect structure solves and uses the safety issue that may exist in the operating process between utilization nib and the body, its technical scheme is reasonable in design, be skillfully constructed, simple in structure, reliable operation is a kind of safety blood collecting pen of creative and practicality.
Description of drawings
Accompanying drawing 1 is safety blood collecting pen embodiment axonometric chart of the present invention;
Accompanying drawing 2 is safety blood collecting pen embodiment three-dimensional exploded view of the present invention;
Accompanying drawing 3 is safety blood collecting pen embodiment cutaway view of the present invention;
State diagram when accompanying drawing 4 is extracted nib for safety blood collecting pen of the present invention;
Accompanying drawing 5 is adjusting ring and push rod axonometric chart in the safety blood collecting pen nib of the present invention;
Accompanying drawing 6 is adjusting ring and push rod cutaway view in the safety blood collecting pen nib of the present invention;
Accompanying drawing 7 is middle cover and slot axonometric chart in the safety blood collecting pen body of the present invention;
Accompanying drawing 8 is the slot enlarged drawing among Fig. 7;
Accompanying drawing 9 is Rhizoma Belamcandae and elastic arm front view in the safety blood collecting pen body of the present invention;
Accompanying drawing 10 is the elastic arm enlarged drawing among Fig. 9;
State diagram when accompanying drawing 11 is installed blood taking needle for safety blood collecting pen of the present invention;
Accompanying drawing 12 is the front view that plug-in mounting thrust moved the door bolt head backward when blood taking needle was installed in sliding tray;
Accompanying drawing 14 is to stop when blood taking needle is installed that shoulder stops the front view that the door bolt head moves backward;
Accompanying drawing 16 is the state diagram of plug-in mounting nib behind the safety blood collecting pen installation blood taking needle of the present invention;
To be plug-in mounting when nib push rod promote a Rhizoma Belamcandae mobile front view backward by the door bolt head with accompanying drawing 17;
Push rod forced door bolt head and elastic arm to a front view of body inside bend distortion when accompanying drawing 19 was the plug-in mounting nib;
Accompanying drawing 21 during for the plug-in mounting nib door bolt head begin to cross over lead-over groove and mobile front view backward from the lead-over groove below;
Accompanying drawing 22 is the vertical view of Figure 21;
Accompanying drawing 23 is crossed over the front view of lead-over groove from the lead-over groove below for the good nib of plug-in mounting back door bolt head;
Accompanying drawing 24 is the vertical view of Figure 23;
Rhizoma Belamcandae drove the door bolt head by elastic arm and all crosses over the front view that lead-over groove enters locked groove from the below when accompanying drawing 25 was shaken hands for pulling back tail;
Accompanying drawing 26 is the vertical view of Figure 25;
Under the elastic force combined effect of shooting spring and elastic arm, fasten with a bolt or latch in the bayonet socket that kayser inclined-plane that procephalic door bolt tongue is resisted against locked shoulder and push rod end form, and enter the preceding lock-out state front view of emission when accompanying drawing 27 sets back for tail handle;
Accompanying drawing 28 is the vertical view of Figure 27;
Accompanying drawing 29 is pressed emission state figure for safety blood collecting pen of the present invention;
Accompanying drawing 30 is the state enlarged drawing when pressing trigger button;
Accompanying drawing 31 is the state enlarged drawing that the door bolt head breaks off relations when pressing trigger button;
State diagram when accompanying drawing 32 is extracted nib for launching under the preceding lock-out state;
When accompanying drawing 33 is extracted nib under the lock-out state before for emission a door bolt resilience and on locked shoulder locked front view;
Accompanying drawing 34 is the vertical view of Figure 33;
Accompanying drawing 35 is pressed the front view of inefficacy for extracting nib back trigger button under the preceding lock-out state of emission;
Accompanying drawing 36 is the vertical view of Figure 35.
In the above accompanying drawing: 1. nib; 2. a body; 3. adjusting medicated cap; 4. adjusting ring; 5. elastic ring; 6. adjusting inner core; 7. Rhizoma Belamcandae; 8. shooting spring; 9. middle cover; 10. trigger button; 11. overcoat; 12. unload shank; 13. interior cover; 14. back-moving spring; 15. indication cover; 16. tail handle; 17. transparent circle; 18. tail medicated cap; 19. first link; 20. second link; 21. push rod; 22. body; 23. slot; 24. elastic arm; 25. door bolt head; 26. door bolt tongue; 27. latch dog; 28. sliding tray; 29. lead-over groove; 30. locked groove; 31. stop shoulder; 32. locked shoulder; 33. kayser inclined-plane; 34. decline the inclined-plane; 35. blood taking needle; 36. socket; 37. needle outlet; 38. latch; 39. jack.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment: safety blood collecting pen
As Fig. 1 ~ shown in Figure 3, this safety blood collecting pen is made up of nib 1 and a body 2 two parts, and wherein, nib 1 is assembled by following four parts: adjusting medicated cap 3, adjusting ring 4, elastic ring 5 and adjusting inner core 6.The axonometric chart of these four parts is seen Fig. 1, and assembly drawing is seen Fig. 3.In nib 1, to regulate inner core 6 inside and be provided with ejection chamber vertically, the front end of ejection chamber is provided with needle outlet 37, regulates inner core 6 and welds or connect and fix with adjusting ring 4, regulates medicated cap 3 and connects and fixes with elastic ring 5, regulates medicated cap 3 and is sleeved on the head of regulating inner core 6.When rotating adjusting medicated cap 3, regulate medicated cap 3 relative accommodation inner cores 6 and move axially, thus the function that realizes regulating depth of needling.Body 2 is assembled by following 12 parts: Rhizoma Belamcandae 7, shooting spring 8, middle cover 9, trigger button 10, overcoat 11, unload shank 12, interior cover 13, back-moving spring 14, indication cover 15, tail handle 16, transparent circle 17 and tail medicated cap 18.The axonometric chart of these 20 parts is seen Fig. 1, and assembly drawing is seen Fig. 3.In a body 2, in cover 9 be contained in the overcoat 11, the front end of middle cover 9 stretches out from the front end of overcoat 11, fixedlys connected after middle cover 9 and overcoat 11 tight fits, on the locating hole of cover 9, the head of trigger button 10 was located in the set button hole of overcoat 11 sidepieces during the afterbody of trigger button 10 was positioned at.Tail handle 16 is installed in the afterbody of overcoat 11, and overcoat 11 is slidingly connected relatively, and interior cover 13 is fixedly connected in tail handle 16, and the afterbody of tail handle 16 is fixedly connected with transparent circle 17 and tail medicated cap 18.Unload shank 12 and be slidingly mounted on the overcoat 11, the pushing needle bar that unloads shank 12 stretches into Rhizoma Belamcandae 7 inside.Rhizoma Belamcandae 7 be contained in the cover 9 in and phase centered covers 9 be in axial sliding connection, Rhizoma Belamcandae 7 heads are provided with the socket 36 of plug-in mounting blood taking needle 35, afterbody be set with the shooting spring 8, the shooting spring 8 in axial action between Rhizoma Belamcandae 7 and middle cover 9.Back-moving spring 14 overlaps between 15 in interior cover 13 and indication in axial action.
As shown in Figure 4, the rear end of nib 1 is as first link 19, and the front portion of a body 2 is to being provided with second link 20 by first link 19.First link 19 is provided with three latches 38, to should being provided with three jacks 39 at second link 20 by latch 38, is connected forming plug between first link 19 and second link 20 with this.
As shown in Figure 5 and Figure 6, use the safety problem that exists in the operating process in order to solve blood collecting pen, be provided with a push rod 21 at adjusting ring 4 end faces of first link 19, this push rod 21 stretches out and points to second link 20 from first link 19.
As shown in Figure 7, corresponding described push rod 21 is axially arranged with one section body 22 at middle cover 9 upper edges of second link 20 body 2, and body 22 offers slot 23 vertically on the tube wall of push rod 21 1 ends, and slot 23 radially runs through tube wall at a body 2.
As Fig. 9 and shown in Figure 10, the sidepiece of described Rhizoma Belamcandae 7 extends an elastic arm 24, and the cantilever end of elastic arm 24 is provided with door bolt 25, and the front portion of door bolt 25 is provided with a door bolt tongue 26, and the rear portion is provided with a latch dog 27.In a body 2 footpath upwards, the width of door bolt 25 is greater than the width of push rod 21.
As shown in Figure 8, described slot 23 is connected and composed by one section sliding tray 28, one section lead-over groove 29 and one section locked groove 30 on axially successively at a body 2, in a body 2 footpaths upwards, the width of sliding tray 28 and locked groove 30 is greater than the width of door bolt 25, the width of lead-over groove 29 is greater than the width of push rod 21, simultaneously less than the width of door bolt 25.The junction of sliding tray 28 and lead-over groove 29 is formed with and stops shoulder 31, lead-over groove 29 is formed with locked shoulder 32 with the junction of locked groove 30, the end of locked shoulder 32 is provided with kayser inclined-plane 33, and described trigger button 10 is positioned at locked groove 30 tops, and kayser inclined-plane 33 is towards trigger button 10.Described push rod 21 is declined inclined-plane 34 and is formed in the space with kayser inclined-plane 33 and intersect or/and the end of door bolt tongue 26 is provided with and declines inclined-plane 34.
Present invention is described respectively by user mode below:
1. the blood taking needle state is installed
As shown in figure 11, separate with a body 2 when written 1, and when shooting spring 8 is in free state, door bolt 25 is arranged in sliding tray 28, under this state during to socket 36 plug-in mounting blood taking needles 35, plug-in mounting thrust forces the latch dog 27 at door bolt 25 rear portion 31 to cooperate with stopping shoulder, thus stop fasten with a bolt or latch 25 from sliding tray 28 to locked groove 30 slips.
In the process of plug-in mounting blood taking needle 35, plug-in mounting thrust makes door bolt 25 mobile backward in sliding tray 28, sees Figure 12 and Figure 13.When door bolt 25 moved to sliding tray 28 rear ends, it was mobile backward to stop that shoulder 31 stops that door bolt 25 continues, thereby stops to move backward, sees Figure 14 and Figure 15.After blood taking needle 35 was in place, under the effect of shooting spring 8, door bolt reached original position 25 time.After installing blood taking needle 35, if there is not on the plug-in mounting nib 1, owing to stop the barrier effect of shoulder 31, whole blood collecting pen not stretchy tail handle 16 enters lock-out states before the emission.This is one of key character of embodying in order to realize using handling safety of the present invention.
2. battery
As shown in figure 16, when nib 1 is inserted a body 2 connections, push rod 21 inserts sliding tray 28 and lead-over groove 29 thereupon, and push rod 21 promotes door bolt 25 and elastic arm 24 to the distortion of a body 2 inside bend by declining inclined-plane 34 during insertion, and begins to cross over lead-over groove 29 from lead-over groove 29 belows.This process can find out from Figure 17 ~ Figure 24 that wherein, Figure 17 and Figure 18 represent that 1 o'clock push rod 21 of plug-in mounting nib is mobile backward by door bolt 25 a promotion Rhizoma Belamcandae 7; Figure 19 and Figure 20 represent that push rod 21 forces door bolt 25 and elastic arm 24 to be out of shape to a body 2 inside bend; Figure 21 and Figure 22 represent that door bolt 25 begins to cross over lead-over groove 29 and mobile backward from lead-over groove 29 belows; Figure 23 and Figure 24 represent good nib 1 back door bolt 25 plot from lead-over groove 29 belows leap lead-over groove 29 of plug-in mounting.
Pulling back tail under this state shook hands 16 o'clock, Rhizoma Belamcandae 7 drives door bolt 25 by elastic arm 24 and all crosses over lead-over groove 29 from the below and enter the locked groove 30, when tail handle 16 sets back, under the elastic force combined effect of the elastic force of shooting spring 8 and elastic arm 24, in the bayonet socket that the kayser inclined-plane 33 that the door bolt tongue 26 of door bolt 25 front portion is resisted against locked shoulder 32 and push rod 21 ends form, and enter lock-out state before the emission.This process can find out from Figure 25 ~ Figure 28 that wherein, Figure 25 and Figure 26 represent to pull back tail and shook hands at 16 o'clock, and Rhizoma Belamcandae 7 drives door bolt 25 by elastic arm 24 and all crosses over lead-over groove 29 from the below and enter locked groove 30; Figure 27 and Figure 28 represent to enter the preceding lock-out state of emission.
3. emission and return state
As shown in figure 29, when pressing trigger button 10, trigger button 10 acts on door bolt 25, and door bolt tongue 26 to lower slider, enters shooting state until unhook along kayser inclined-plane 33.This process can find out from Figure 30 and Figure 31 that wherein, the state when Figure 30 represents to press trigger button 10 is fastened 25 state that break off relations with a bolt or latch when Figure 31 represents to press trigger button 10.Emission back Rhizoma Belamcandae 7 bounces back under the effect of back-moving spring 14, and the needle point of emission back blood taking needle 35 can not exposed.
4. extract written state during battery
Shown in figure 32, under the lock-out state before emission, when nib 1 is extracted from a body 2, push rod 21 is extracted out from sliding tray 28 and lead-over groove 29 thereupon, this moment is under the resilient force of shooting spring 8, door bolt tongue 26 upwards slides into locked shoulder 32 end faces and forms locking state along kayser inclined-plane 33, trigger button 10 presses inefficacy under this state.This process can find out from Figure 33 ~ Figure 36 that wherein, Figure 33 and Figure 34 represent to extract 25 resilience and locked on locked shoulder 32 of written 1 o'clock door bolt; Figure 35 and Figure 36 represent to extract the plot that nib 1 back trigger button 10 is pressed inefficacy.This moment, whole blood collecting pen was in locking state, and this also is two of the key character that embodies in order to realize using handling safety of the present invention.
In a word, the present invention is mainly reflected in following two aspects in order to realize the use handling safety of blood collecting pen:
The first, when operator's plug-in mounting blood taking needle, plug-in mounting thrust can not make the trigger mechanism of blood collecting pen enter lock-out state in advance.And when not plugging nib, even pulling tail handle also can not make the trigger mechanism of blood collecting pen enter lock-out state in advance.Can avoid the injury that may cause to the operator because of maloperation emission like this.
The second, when blood collecting pen is in battery, if the nib of extracting can not trigger the trigger mechanism of blood collecting pen.Even the operator presses button also can't trigger the trigger mechanism of blood collecting pen in this case.Can avoid the operator because running into the injury that button may cause to the operator because of carelessness like this.
In addition, referring to shown in Figure 29, for the operator can identify the residing state of trigger mechanism in the blood collecting pen easily, afterbody at a body 2 is provided with transparent circle 17, and being provided with indication cover 15(at the afterbody of Rhizoma Belamcandae 7 identifies redly), during lock-out state before Rhizoma Belamcandae 7 is in emission, indication cover 15 is located axially at transparent circle 17 positions in a body 2 inside.When the operator observes transparent circle 17 and identifies redly, the lock-out state before trigger mechanism in blood collecting pen this moment is in emission is described; When the operator observes transparent circle 17 and do not identify redly, illustrate that trigger mechanism is in free state in blood collecting pen this moment.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (3)
1. safety blood collecting pen, formed by nib (1) and a body (2) two parts, nib (1) inside is provided with ejection chamber vertically, the front end of ejection chamber is provided with needle outlet (37), be equipped with Rhizoma Belamcandae (7) and shooting spring (8) in the body (2), Rhizoma Belamcandae (7) head is provided with the socket (36) of plug-in mounting blood taking needle (35), body (2) sidepiece is provided with trigger button (10), body (2) afterbody is provided with tail handle (16), the rear end of nib (1) is as first link (19), the front portion of body (2) is characterized in that being provided with second link (20) by first link (19):
Described first link (19) is connected with second link (20) plug;
Described first link (19) is provided with a push rod (21), and this push rod (21) stretches out and points to second link (20) from first link (19);
Corresponding described push rod (21) is axially arranged with one section body (22) at second link (a 20) upper edge body (2), body (22) offers slot (23) vertically on the tube wall of push rod (21) one ends, slot (23) radially runs through tube wall at a body (2);
The sidepiece of described Rhizoma Belamcandae (7) extends an elastic arm (24), and the cantilever end of elastic arm (24) is provided with door bolt head (25), and the front portion of door bolt head (25) is provided with a door bolt tongue (26), and the rear portion is provided with a latch dog (27); In a body (2) footpath upwards, the width of door bolt head (25) is greater than the width of push rod (21);
Described slot (23) is axially gone up at a body (2) and is connected and composed successively by one section sliding tray (28), one section lead-over groove (29) and one section locked groove (30), in a body (2) footpath upwards, the width of sliding tray (28) and locked groove (30) is greater than the width of door bolt head (25), the width of lead-over groove (29) is greater than the width of push rod (21), simultaneously less than the width of fastening head (25) with a bolt or latch; The junction of sliding tray (28) and lead-over groove (29) is formed with and stops shoulder (31), and lead-over groove (29) is formed with locked shoulder (32) with the junction of locked groove (30); Described trigger button (10) is positioned at locked groove (30) top; Described push rod (21) is declined inclined-plane (34) or/and the end of door bolt tongue (26) is provided with;
When nib (1) is separated with a body (2), and shooting spring (8) is when being in free state, door bolt head (25) is arranged in sliding tray (28), under this state during to socket (36) plug-in mounting blood taking needle (35), plug-in mounting thrust forces the latch dog (27) at door bolt head (25) rear portion to cooperate with stopping shoulder (31), thereby stops door bolt head (25) to slide from sliding tray (28) to locked groove (30); When nib (1) is inserted a body (2) connection, push rod (21) inserts sliding tray (28) and lead-over groove (29) thereupon, push rod (21) promotes door bolt head (25) and the distortion of elastic arm (24) Xiang Bishen (2) inside bend by declining inclined-plane (34) during insertion, when under this state, pulling back tail handle (16), Rhizoma Belamcandae (7) drives door bolt head (25) by elastic arm (24) and enters the locked groove (30) from below leap lead-over groove (29), and enters the lock-out state before the emission.
2. safety blood collecting pen according to claim 1, it is characterized in that: described first link (19) is provided with latch (38), to should being provided with jack (39) at second link (20) by latch (38), be connected forming plug between first link (19) and second link (20) with this.
3. safety blood collecting pen according to claim 1, it is characterized in that: described body (2) afterbody is provided with transparent circle (17), Rhizoma Belamcandae (7) afterbody is provided with indication cover (15), during lock-out state before Rhizoma Belamcandae (7) is in emission, indication cover (15) is located axially at transparent circle (17) position in a body (2) inside.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103516526A CN102579057B (en) | 2011-11-09 | 2011-11-09 | Safety blood lancet |
| PCT/CN2012/001373 WO2013067760A1 (en) | 2011-11-09 | 2012-10-12 | Safe blood sampling pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103516526A CN102579057B (en) | 2011-11-09 | 2011-11-09 | Safety blood lancet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102579057A CN102579057A (en) | 2012-07-18 |
| CN102579057B true CN102579057B (en) | 2013-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103516526A Active CN102579057B (en) | 2011-11-09 | 2011-11-09 | Safety blood lancet |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102579057B (en) |
| WO (1) | WO2013067760A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102379705B (en) * | 2011-11-09 | 2013-01-09 | 苏州施莱医疗器械有限公司 | Safety blood sampling pen |
| CN102579057B (en) * | 2011-11-09 | 2013-10-09 | 苏州施莱医疗器械有限公司 | Safety blood lancet |
| CN103156621B (en) * | 2013-03-18 | 2014-09-17 | 苏州施莱医疗器械有限公司 | Improved safe blood-sampling pen |
| CN103142238B (en) * | 2013-03-18 | 2014-09-17 | 苏州施莱医疗器械有限公司 | Improved safety blood collection pen |
| CN103860181B (en) * | 2014-03-20 | 2015-06-17 | 苏州施莱医疗器械有限公司 | Improved safe lancing device |
| CN103989484B (en) * | 2014-06-10 | 2015-10-28 | 苏州施莱医疗器械有限公司 | Prevent the disposable automatic blood-taking needle of secondary puncture |
| JP6992985B2 (en) | 2015-08-12 | 2022-01-13 | ユニバーシティ オブ タスマニア | Liquid sampling device |
| CN107638180B (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 loading and unload needle using tail knob |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613234Y (en) * | 2003-05-12 | 2004-04-28 | 施国平 | Self-destroyed disposable safety automatic blood sampling needle |
| US20070083222A1 (en) * | 2005-06-16 | 2007-04-12 | Stat Medical Devices, Inc. | Lancet device, removal system for lancet device, and method |
| PL213006B1 (en) * | 2007-04-19 | 2012-12-31 | Htl Strefa Spolka Akcyjna | Device for needling of patient's skin |
| US8454533B2 (en) * | 2008-05-09 | 2013-06-04 | Lifescan Scotland Limited | Lancing devices and methods |
| CN201320171Y (en) * | 2008-12-24 | 2009-10-07 | 天津华鸿医材有限公司 | Blood sampling pen with adjustable needling depth |
| CN201469280U (en) * | 2009-08-10 | 2010-05-19 | 柳新荣 | Resetting device for blood sampling pen |
| EP2523602A1 (en) * | 2010-01-13 | 2012-11-21 | Facet Technologies, LLC | Lancing device with improved guidance mechanism |
| CN102028480B (en) * | 2010-12-21 | 2012-02-15 | 苏州施莱医疗器械有限公司 | Improved safe and convenient disposable automatic blood taking needle |
| CN202313356U (en) * | 2011-11-09 | 2012-07-11 | 苏州施莱医疗器械有限公司 | Safety blood sampling pen |
| CN102379705B (en) * | 2011-11-09 | 2013-01-09 | 苏州施莱医疗器械有限公司 | Safety blood sampling pen |
| CN202313357U (en) * | 2011-11-09 | 2012-07-11 | 苏州施莱医疗器械有限公司 | Safety blood sampling pen |
| CN102579057B (en) * | 2011-11-09 | 2013-10-09 | 苏州施莱医疗器械有限公司 | Safety blood lancet |
-
2011
- 2011-11-09 CN CN2011103516526A patent/CN102579057B/en active Active
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2012
- 2012-10-12 WO PCT/CN2012/001373 patent/WO2013067760A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN102579057A (en) | 2012-07-18 |
| WO2013067760A1 (en) | 2013-05-16 |
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Denomination of invention: Safe blood collection pen Effective date of registration: 20220105 Granted publication date: 20131009 Pledgee: China Minsheng Bank Co.,Ltd. Suzhou Branch Pledgor: STERILANCE MEDICAL (SUZHOU) Inc. Registration number: Y2022320010001 |
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