CN104970808B - For the safety protection mechanism of blood collecting pen - Google Patents
For the safety protection mechanism of blood collecting pen Download PDFInfo
- Publication number
- CN104970808B CN104970808B CN201410142578.0A CN201410142578A CN104970808B CN 104970808 B CN104970808 B CN 104970808B CN 201410142578 A CN201410142578 A CN 201410142578A CN 104970808 B CN104970808 B CN 104970808B
- Authority
- CN
- China
- Prior art keywords
- external member
- seat
- syringe needle
- trigger shaft
- percussion
- 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.)
- Expired - Fee Related
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
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150633—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
- A61B5/150641—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position
- A61B5/150656—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position semi-automatically triggered, i.e. in which the triggering of the protective sleeve requires a deliberate action by the user, e.g. manual release of spring-biased extension means
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention is about a kind of safety protection mechanism for blood collecting pen, include blow bill member and a switching switch, percussion unit is arranged in the trigger shaft in syringe needle holding seat with syringe needle holding seat and one, switching switch has one to be set on the fixed sleeve part that syringe needle keeps seat, one is set on the rotation external member of fixed sleeve part, and one be set on trigger shaft gearing external member, when rotation external member is located at a cocked position, syringe needle keeps seat trigger shaft can be driven up to move, until the preparation for percussion of loading with completion during fixed sleeve part completion clamping, gearing external member at this time can be limited by rotation external member and trigger shaft can not be pushed to carry out the withdraw of the needle, when rotation external member is located at a withdraw of the needle position, syringe needle keeps seat to be fixed in fixed sleeve part and can not load, trigger shaft at this time can carry out withdraw of the needle operation by interlocking the promotion of external member.
Description
Technical field
, espespecially a kind of safety protection mechanism for blood collecting pen related with blood collecting pen of the invention.
Background technology
In order to facilitate acquisition subject blood test, medical staff would generally by blood collecting pen subject skin
Skin pierce through small place's wound blood was collected action, after blood sampling finishes, since syringe needle has attached the blood of human body, so
Used syringe needle must be carried out abandoning again after safe handling, be pierced to avoid medical staff or other human hair lifes by syringe needle
The situation of wound.
For current blood collecting pen, due in structure and being not provided with protection mechanism, so medical staff is easily sudden and violent
It is exposed under danger, in some instances it may even be possible to the situation that medical staff is surprisingly stabbed by syringe needle occur.For example, when medical staff is removing syringe needle
Operation when, if because malfunction generate firing action, medical staff will be injured immediately.For another example, medical staff is when loading onto syringe needle, if
Because malfunction generates action of loading, can also medical staff be made to be exposed under danger.Therefore, the safety in utilization of aforementioned blood collecting pen still has
It is to be strengthened.
Invention content
It is a primary object of the present invention to provide a kind of safety protection mechanism for blood collecting pen, it can ensure that and hit loading
Withdraw of the needle operation can not be carried out during hair, and percussion operation of loading can not be carried out during the withdraw of the needle, to increase using upper
Safety.
In order to reach foregoing purpose, safety protection mechanism of the invention includes blow bill member and a switching switch.It should
Firing unit, there is a syringe needle to keep seat, a trigger shaft and a percussion elastic component, the syringe needle that the peripheral surface of seat is kept to have one
First outer stop section of trigger unit and an opposite trigger unit, the syringe needle keep the both ends of seat to run through blow hair engaging aperture, the percussion
The hole wall in hole has shoulder in one first, which can axially be arranged in the syringe needle and keep in the percussion hole of seat and have
There is one first outer shoulder, which is separably connected in the syringe needle and keeps shoulder in the first of seat, makes the trigger shaft
It can be synchronized during loading and the syringe needle is pulled to keep seat, in addition seat can be kept to push by the syringe needle during percussion, it should
Percussion elastic component, which is sheathed on the trigger shaft and is resisted against the syringe needle with its bottom end, keeps seat, seat generation to be kept to push away syringe needle
Power；There is the switching switch fixed sleeve part, a rotation external member and a gearing external member, the fixed sleeve part to be sheathed on the syringe needle
It keeps seat and there is a bearing and leaning portion, which can rotationally be sheathed on this between a cocked position and a withdraw of the needle position
Fixed sleeve part, the inner peripheral surface of the rotation external member have in one first that stop section, the gearing external member are arranged in stop section and one second
In the top of the trigger shaft and the top of the percussion elastic component is resisted against, and with one second outer stop section.As a result, when the rotation
When external member is located at the cocked position, the syringe needle keep seat the first outer stop section and the rotation external member first in stop section it
Between be separated from each other, the trigger unit that the syringe needle keeps seat is enable the movement of seat to be kept to be resisted against the fixed sleeve part by the syringe needle
Bearing and leaning portion, to complete the preparation of percussion of loading, while stop section is connected in the of the gearing external member in the second of the rotation external member
Two outer stop sections make the trigger shaft seat can not be kept to move down with respect to the syringe needle and can not carry out withdraw of the needle operation, when the rotation
When external member is located at the withdraw of the needle position, the rotation external member first in stop section be connected in the syringe needle keep seat the first outer block
Portion makes the trigger unit that the syringe needle keeps seat to be fixed in the fixed sleeve part and the syringe needle is allowed to keep seat that can not be resisted against the fixing sleeve
The bearing and leaning portion of part can not carry out preparation of loading, while stop section and the gearing external member in the second of the rotation external member at this time
It is mutually staggered between second outer stop section, the trigger shaft is enable seat to be kept to move down with respect to the syringe needle and withdraw of the needle behaviour can be carried out
Make.
Preferably, the peripheral surface of the rotation external member has an elastic pressure section, when the rotation external member is located at cocked position
When, the elastic pressure section of the rotation external member is connected to the trigger unit that the syringe needle keeps seat.As a result, when the elasticity of the rotation external member is supported
When splenium is acted on by external force and the trigger unit of syringe needle holding seat is forced to be detached from the bearing and leaning portion of the fixed sleeve part, which keeps
Sitting toilet can act on that the trigger shaft is driven to carry out firing action through the elastic force of the percussion elastic component.
Preferably, the percussion unit also has a upper shield, which is covered on the top of the trigger shaft and is connected to the gearing
External member.The upper shield can pull the trigger shaft to load when under tension acts on as a result, can also be in the effect of being under pressure
When through the gearing external member push the trigger shaft carry out the withdraw of the needle.
Preferably, the upper shield has an ejection ring, which is connected to the trigger shaft and the gearing external member, the percussion list
Member also has an end cap and a return springs, which is fixed on the top of the trigger shaft, which is sheathed on this
It trigger shaft and is resisted against between the end cap and the ejection ring, it is multiple to be provided during the process of loading and the withdraw of the needle the trigger shaft
Position elastic force.
Description of the drawings
Fig. 1 is the stereogram using the blood collecting pen of the present invention.
Fig. 2 is the three-dimensional exploded view using the blood collecting pen of the present invention.
Fig. 3 is using the longitudinal sectional view of the blood collecting pen of the present invention, and main display rotation external member is located at cocked position
State.
Fig. 4 is using the partial lengthwise sectional view of the blood collecting pen of the present invention, and main display interlocks the second outer block of external member
The state that portion is stopped by stop section in the second of rotation external member.
Fig. 5 is analogous to Fig. 3, mainly shows the process loaded.
Fig. 6 is analogous to Fig. 5, the main state shown after the completion of loading.
Fig. 7 is analogous to Fig. 6, the state after the completion of main display percussion.
Fig. 8 is using another longitudinal sectional view of the blood collecting pen of the present invention, and main display rotation external member is located at withdraw of the needle position
State.
Fig. 9 is analogous to Fig. 4, main display interlock the second outer stop section of external member with rotating external member second in stop section it
Between the state that mutually staggers.
Figure 10 is analogous to Fig. 8, the main process for showing the withdraw of the needle.
Symbol description
10 blood collecting pen, 12 pen body
122 inward flanges 124 switch
14 pen cover, 16 syringe needle
18 safety protection mechanisms 20 fire unit
21 syringe needles keep seat 211 to fire hole
213 first outer stop section of shoulder in 212 first
214 notch, 215 trigger unit
22 trigger shaft, 221 first outer shoulder
223 second outer shoulders 23 fire elastic component
24 upper shield, 25 housing
Holding section in 252 sets of holes 254
26 ejection ring, 261 ring body
263 adjutage of shoulder in 262 second
264 outer 27 return springs of holding section
28 end cap, 30 switching switch
40 fixed sleeve part, 42 retaining hole
44 bearing and leaning portions 50 rotate external member
Stop section in stop section 52 second in 51 first
P1 cocked position P2 pin positions
53 elastic pressure sections 60 interlock external member
62 end wall, 64 second outer stop section
Specific embodiment
Referring to Fig. 1, blood collecting pen 10 shown in figure mainly includes a pen body 12 and a pen cover 14, pen cover 14 is arranged in
The bottom end of pen body 12.Referring again to Fig. 2, safety protection mechanism 18 of the invention includes blow bill member 20 and a switching switch
30。
Firing unit 20, there is a syringe needle to keep seat 21, a trigger shaft 22, one percussion 23 and one upper shield 24 of elastic component,
Wherein：
Syringe needle keeps the both ends of seat 21 to run through blow hair engaging aperture 211, plugs fixation with for a syringe needle 16, fires hole 211
Top have one first in shoulder 212 (as shown in Figure 3), moreover, syringe needle keep seat 21 peripheral surface have one first outside gear
Stop 213, one is opened in trigger unit of the notch 214 and one with respect to the first outer stop section 213 of the first outer stop section 213
215。
Again as shown in Figures 2 and 3, the bottom end of trigger shaft 22 is axially displaceably arranged in the percussion hole that syringe needle keeps seat 21
In 211, to generate firing action to syringe needle 16.The top extended needle of trigger shaft 22 keep the percussion hole 211 of seat 21 outer and
An end cap 28 is arranged with, in addition, there is the peripheral surface of trigger shaft 22 one first outer shoulder 221 and one to be located at the first outer shoulder 221
Second outer shoulder 223 of top, the first outer shoulder 221 therein are connected in syringe needle and shoulder 212 in the first of seat 21 are kept (such as to scheme
Shown in 3) so that trigger shaft 22 can drive syringe needle that seat 21 is kept to be moved towards the direction far from syringe needle 16 when under tension acts on.
Percussion elastic component 23 is sheathed on trigger shaft 22 and the top of syringe needle holding seat 21 is resisted against with its bottom end, to needle
Head keep seat 21 generate thrust, enable syringe needle keep seat 21 by percussion elastic component 23 effect when by with trigger shaft 22 it
Between clamping and drive trigger shaft 22 together towards the direction of syringe needle 16 move.
Upper shield 24 has a housing 25, an ejection ring 26 and a return springs 27, as shown in Figures 2 and 4, housing
25 have a sets of holes 252 and the top of pen body 12 are sheathed on by sets of holes 252, and the hole wall of sets of holes 252 has two opposite interior cards
Conjunction portion 254；Ejection ring 26 has a ring body 261, and ring body 261 is sheathed on the top of trigger shaft 22, moreover, the inner ring of ring body 261
Face has shoulder 262 in two opposite second, to be connected in the second of trigger shaft 22 the outer shoulder 223, in addition, ring body 261
Outer ring surface relatively extends two adjutages 263, and each adjutage 263 has an outer holding section 264 and blocked by outer holding section 264
The interior holding section 254 of housing 25 is connected to, ejection ring 26 is made to be fixed in the sets of holes 252 of housing 25；Return springs 27 are sheathed on
It trigger shaft 22 and is resisted against between the ring body 261 of ejection ring 26 and end cap 28, to provide reset effect to trigger shaft 22.
There is switching switch 30 fixed sleeve part 40, one rotation external member 50 and one to interlock external member 60, wherein：
Fixed sleeve part 40 be fixed on the bottom end of pen body 12 and by pen cover 14 sets cover.The both ends of fixed sleeve part 40 are run through
One retaining hole 42 keeps seat 21 to be sheathed on syringe needle, in addition, the peripheral surface of fixed sleeve part 40 has a bearing and leaning portion 44, to
The trigger unit 215 of seat 21 is kept to provide against effect syringe needle, as shown in Figures 2 and 6.
Rotation external member 50 is rotationally sheathed on fixed sleeve part 40 and between pen body 12 and fixed sleeve part 40, rotary sleeve
The inner peripheral surface in the center of part 50 has stop section 51 in one first, and rotating the inner peripheral surface on the top of external member 50 has two opposite the
Stop section 52 in two, when rotation external member 50 is located at a cocked position P1, as shown in Figures 2 and 3, the first of rotation external member 50
Interior stop section 51 can leave syringe needle keep seat 21 notch 214 and syringe needle keep seat 21 the first outer stop section 213 between phase
It mutually separates, enables syringe needle that seat 21 to be kept to be moved up and down in the retaining hole 42 of fixed sleeve part 40, when rotation external member 50 is moved back positioned at one
During pin position P2, as shown in Fig. 2 and Fig. 8, the notch that syringe needle keeps seat 21 can be stretched by rotating stop section 51 in the first of external member 50
It keeps mutually being clamped between the first outer stop section 213 of seat 21 in 214 and with syringe needle, syringe needle is made to keep seat 21 can not be in fixing sleeve
It is moved up and down in the retaining hole 42 of part 40.In addition, the peripheral surface of rotation external member 50 has an elastic pressure section 53, elastic pressure section
53 position corresponds to the bearing and leaning portion 44 of fixed sleeve part 40.
External member 60 is interlocked to be sheathed on trigger shaft 22 and bear against an inward flange 122 (as shown in Figure 3) of pen body 12, moreover,
It interlocks external member 60 and the top of percussion elastic component 23 and the ring body 261 (as shown in Figure 3) of ejection ring 26 is connected to by an end wall 62,
In addition, the peripheral surface for interlocking external member 60 has four the second outer stop sections 64 (as shown in Figure 2) in pairs, kept off outside each second
Stop 64 works as rotation between the adjutage 263 of the ejection ring 26 of stop section 52 and upper shield 24 in the second of rotation external member 50
When external member 50 is located at cocked position P1, as shown in figure 4, the second outer stop section 64 for interlocking external member 60 can be by rotation external member 50
Stop section 52 makes gearing external member 60 that can not move down to stopping in second, when rotation external member 50 is located at withdraw of the needle position P2,
As shown in figure 9, interlocking the second outer stop section 64 of external member 60 will not be stopped by stop section 52 in the second of rotation external member 50, make
Interlocking external member 60 can down be pushed by the adjutage 263 of the ejection ring 26 of upper shield 24.
Detailed construction for the safety protection mechanism 18 of the present invention above, the below operating process again with regard to the present invention are said
It is bright.
When starting operation, rotation external member 50 is turned into cocked position P1 as shown in Figure 3 first, keeps syringe needle
Seat 21 can move up and down in the retaining hole 42 of fixed sleeve part 40, and then force pulls the housing 25 of upper shield 24, as shown in figure 5,
Upper shield 24 can up push return springs 27 by the ring body 261 of ejection ring 26, and return springs 27 can be extruded and simultaneously
End cap 28 is up pushed, trigger shaft 22 is synchronized and is up driven, this can be passed through during trigger shaft 22 is up driven
The the first outer shoulder 221 and syringe needle of body keep the clamping relationship in the first of seat 21 between shoulder 212 and syringe needle are pushed to keep seat
21, at this time remained stationary as because interlocking external member 60, percussion elastic component 23 can the syringe needle that up be moved keep seat 21 to
It is pressed against, when syringe needle keeps the trigger unit 215 of seat 21 to be connected in the bearing and leaning portion 44 of fixed sleeve part 40, syringe needle keeps seat 21
Trigger unit 215 can be pressed against by the elastic pressure section 53 of rotation external member 50 simultaneously, as shown in fig. 6, then i.e. releasably to set
The pulling force of lid 24, return springs 27 at this time can push the ejection ring 26 of upper shield 24, until the ejection ring 26 of upper shield 24 prolongs
Until semi-girder 263 is resisted against the second outer stop section 64 for interlocking external member 60, preparation to be fired of loading at this time is completed.Complete
Into after the warming-up exercise loaded, due to interlocking the second outer stop section 64 of external member 60 by stop section in the second of rotation external member 50
52 to stopping, and the adjutage 263 of the ejection ring 26 of upper shield 24 is formed between the second outer stop section 64 of gearing external member 60 again
Clamping, as shown in figure 4, so at this time pressing upper shield 24 all will not allow trigger shaft 22 to generate any action anyway, so
Can ensure that cannot carry out the operation of the withdraw of the needle after loading.
When to be fired, with 124 (as shown in Fig. 2 and Fig. 7) of switch for finger pressing pen body 12, this 124 meeting of switch
The elastic pressure section 53 of rotation external member 50 is first pressed on, syringe needle guarantor can be pressed on again by then rotating the elastic pressure section 53 of external member 50
The bearing and leaning portion 44 of seat 21 is held, makes syringe needle that the bearing and leaning portion 44 of seat 21 be kept to release the card between the trigger unit of fixed sleeve part 40 215
Relationship is connect, the response force of percussion elastic component 23 at this time can keep seat 21 to impose thrust at syringe needle, be protected by the syringe needle pushed
Holding seat 21 can be again by the clamping relationship between shoulder 212 in itself first and the first outer shoulder 221 of trigger shaft 22 come same
Step pushes trigger shaft 22, as shown in fig. 7, trigger shaft 22 is made to push syringe needle 16 and complete firing action.
Fired in completion just needs the operation for then carrying out the withdraw of the needle later, removes pen cover 14 first, is emerging in syringe needle 16
Outside, rotation external member 50 is then turned into withdraw of the needle position P2 as shown in Figure 8 and then syringe needle 16 is inserted in a pinhead sleeve
On (not shown), syringe needle at this time keeps seat 21 that can not be moved up and down because of being limited by rotation external member 50, in addition
Gearing external member 60 be then will not be by rotation external member 50 to stopping (as shown in Figure 9), so pressing the mistake of upper shield 24 in force
Cheng Zhonghui will interlock external member 60 through ejection ring 26 and pushed down with trigger shaft 22 simultaneously, make trigger shaft 22 that syringe needle 16 is released needle
Head is kept outside the percussion hole 211 of seat 21, as shown in Figure 10, is discharged the pressure to upper shield 24 again after the withdraw of the needle is completed, is made percussion
Bar 22 is acted on by the elastic force of return springs 27 and being kept in the percussion hole 211 of seat 21 to return to syringe needle, syringe needle 16 at this time
It can rest on pinhead sleeve, medical staff can abandon syringe needle 16 together with pinhead sleeve.During the aforementioned withdraw of the needle, because
For syringe needle keep seat 21 be maintained at the state that is connected together of rotation external member 50, even if as shown in figure 8, so trigger shaft 22 by
To upper shield 24 pulling force when can not also seat 21 be kept to be pulled to the position loaded syringe needle, so can ensure that during the withdraw of the needle
The operation that cannot be loaded.
To sum up institute is old, on the one hand safety protection mechanism 18 of the invention may insure by the setting of switching switch 30
The withdraw of the needle can not be carried out by loading during preparation fires, and on the other hand can not be loaded during the withdraw of the needle, to avoid generation
It malfunctions and increases and use upper safety.
Claims (5)
1. a kind of safety protection mechanism for blood collecting pen, which is characterized in that include：
There is a blow bill member syringe needle seat, a trigger shaft and a percussion elastic component, the syringe needle to be kept to keep the periphery of seat
Face has the first outer stop section of a trigger unit and an opposite trigger unit, which keeps the both ends of seat to run through blow hair engaging aperture,
The hole wall in the percussion hole has shoulder in one first, and the bottom end of the trigger shaft can axially be arranged in the syringe needle and keep seat
It fires in hole and there is one first outer shoulder, which is connected in the syringe needle and keeps shoulder in the first of seat, the percussion
Elastic component, which is sheathed on the trigger shaft and is resisted against the syringe needle with its bottom end, keeps seat；And
There is one switching switch a fixed sleeve part, a rotation external member and a gearing external member, the fixed sleeve part to be sheathed on the needle
Head keeps seat and has a bearing and leaning portion, which can rotationally be sheathed between a cocked position and a withdraw of the needle position
The fixed sleeve part, the inner peripheral surface of the rotation external member have in one first stop section, the gearing external member set in stop section and one second
Set on the top of the trigger shaft and the top of the percussion elastic component is resisted against, the peripheral surface of the gearing external member has to be kept off outside one second
Stop；
The percussion unit also has a upper shield, which is covered on the top of the trigger shaft and is connected to the gearing external member；The percussion
The top of bar is stretched out the syringe needle and is kept outside the percussion hole of seat and with one second outer shoulder, and with an ejection ring, this is pushed away the upper shield
The inner ring surface of apical ring has shoulder in one second, this in second shoulder be separably connected in the second outer shoulder of the trigger shaft,
The outer ring surface of the ejection ring has two adjutages, which is connected to the second outer stop section of the gearing external member.
2. it to be used for the safety protection mechanism of blood collecting pen as described in claim 1, which is characterized in that the syringe needle keeps the first of seat
Outer stop section have a notch, when the rotation external member is located at the cocked position, the rotation external member first in stop section from
It opens the syringe needle to keep the notch of seat and keep mutually staggering between the first outer stop section of seat with the syringe needle, when the rotation external member position
When the withdraw of the needle position, the rotation external member first in stop section stretch into the syringe needle keep seat notch in and with the syringe needle keep
It is mutually clamped between first outer stop section of seat.
3. it to be used for the safety protection mechanism of blood collecting pen as described in claim 1, which is characterized in that the peripheral surface of the rotation external member
With an elastic pressure section, when the rotation external member is located at the cocked position, the elastic pressure section of the rotation external member is connected to
The syringe needle keeps the trigger unit of seat.
4. it to be used for the safety protection mechanism of blood collecting pen as described in claim 1, which is characterized in that the upper shield has a housing,
The housing has a sets of holes, and the hole wall of the sets of holes is equipped with holding section in one, and the extension of the ejection ring has an outer holding section, should
Outer holding section is connected in the interior holding section of the housing.
5. it to be used for the safety protection mechanism of blood collecting pen as described in claim 1, which is characterized in that the percussion unit also has one
End cap and a return springs, the end cap are fixed on the top of the trigger shaft, which is sheathed on the trigger shaft and top
It is butted between the end cap and the ejection ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142578.0A CN104970808B (en) | 2014-04-10 | 2014-04-10 | For the safety protection mechanism of blood collecting pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142578.0A CN104970808B (en) | 2014-04-10 | 2014-04-10 | For the safety protection mechanism of blood collecting pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104970808A CN104970808A (en) | 2015-10-14 |
| CN104970808B true CN104970808B (en) | 2018-06-19 |
Family
ID=54268173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410142578.0A Expired - Fee Related CN104970808B (en) | 2014-04-10 | 2014-04-10 | For the safety protection mechanism of blood collecting pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104970808B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110694146B (en) * | 2019-10-25 | 2022-01-25 | 刘苏衡 | Needleless injector |
| CN111419240B (en) * | 2020-04-21 | 2021-10-08 | 苏州施莱医疗器械有限公司 | Blood sampling pen convenient to needle-prick cap is unloaded |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518450A (en) * | 2008-02-25 | 2009-09-02 | 华广生技股份有限公司 | Puncture device |
| CN201510290U (en) * | 2009-10-27 | 2010-06-23 | 天津华鸿医材有限公司 | Blood collecting pen capable of automatic withdrawing of needle |
| CN203828942U (en) * | 2014-04-10 | 2014-09-17 | 睿康生医股份有限公司 | Safety protection mechanism used for blood sampling pen |
-
2014
- 2014-04-10 CN CN201410142578.0A patent/CN104970808B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518450A (en) * | 2008-02-25 | 2009-09-02 | 华广生技股份有限公司 | Puncture device |
| CN201510290U (en) * | 2009-10-27 | 2010-06-23 | 天津华鸿医材有限公司 | Blood collecting pen capable of automatic withdrawing of needle |
| CN203828942U (en) * | 2014-04-10 | 2014-09-17 | 睿康生医股份有限公司 | Safety protection mechanism used for blood sampling pen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104970808A (en) | 2015-10-14 |
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