CN104970807B - For the push type withdraw of the needle mechanism of blood collecting pen - Google Patents
For the push type withdraw of the needle mechanism of blood collecting pen Download PDFInfo
- Publication number
- CN104970807B CN104970807B CN201410140609.9A CN201410140609A CN104970807B CN 104970807 B CN104970807 B CN 104970807B CN 201410140609 A CN201410140609 A CN 201410140609A CN 104970807 B CN104970807 B CN 104970807B
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- CN
- China
- Prior art keywords
- seat
- syringe needle
- needle
- withdraw
- stop section
- 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
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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
- A61B5/150374—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
-
- 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)
- 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 kind of push type withdraw of the needle mechanism for blood collecting pen, include a block seat, blow bill member, an and withdraw of the needle button, firing unit, there is a syringe needle to keep seat and a trigger shaft, syringe needle keeps mutually being connected together between seat and block seat, trigger shaft is axially displaceably arranged in syringe needle and keeps in seat, withdraw of the needle button is sheathed on the top of trigger shaft, to push trigger shaft down, the clamping relationship between seat is so kept by block seat and syringe needle, trigger shaft is enabled to keep seat that syringe needle is released syringe needle under the situation remained stationary as in syringe needle to keep outside seat, it is effectively reduced by the risk of needlestick injuries with smoothly completing withdraw of the needle action.
Description
Technical field
The present invention is related with blood collecting pen, especially a kind of push type withdraw of the needle mechanism for blood collecting pen.
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
Must by used syringe needle carry out safe handling, to avoid medical staff or other people there is a situation where by needlestick injuries.
For the safe handling at present to syringe needle, most common mode is to be taken needle body from needle stand by rotation needle body
Under, needle body is pierced into pinhead sleeve again later, and row abandons again, but herein during a withdraw of the needle, medical staff may be because itself
Accidentally or by other external force push situation under, syringe needle is caused surprisingly to be pierced into the hand of medical staff and increase medical care people
The infected risk of member.
Invention content
The purpose of the present invention is to provide a kind of push type withdraw of the needle mechanism for blood collecting pen, during promoting the withdraw of the needle
Convenience and safety, to reduce the risk surprisingly stabbed by syringe needle.
To achieve the above object, push type withdraw of the needle mechanism provided by the invention includes a block seat, blow bill member, with
An and withdraw of the needle button.The block seat tool has stop section in one；There is the percussion unit syringe needle to keep seat and a trigger shaft, the syringe needle
Seat is kept to be set in the block seat, is fixed with for a syringe needle, which keeps the peripheral surface of seat to have an outer stop section, should
Outer stop section is connected in the interior stop section of the block seat, moreover, the syringe needle keeps 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 is axially displaceably arranged in the syringe needle and keeps in the percussion hole of seat and have
There is one first outer shoulder, which is connected in the syringe needle and keeps shoulder in the first of seat；The withdraw of the needle button is sheathed on this and hits
The top of bar is sent out, the trigger shaft to be driven to move up and down.
As a result, during the trigger shaft moves down, since syringe needle holding seat can be limited by the resistance of the block seat
Gear so that the syringe needle is released to the syringe needle under the situation that the trigger shaft can keep seat to remain stationary as in the syringe needle and is kept outside seat,
To complete withdraw of the needle action.
Preferably, the block seat tool has a fixed sleeve part and a rotation external member, the fixed sleeve part, should through there is a retaining hole
The syringe needle is equipped in retaining hole and keeps seat, which has the interior stop section and can be in a first position and a second position
Between be rotationally sheathed on the fixed sleeve part.As a result, when the rotation external member is located at the first position, the interior gear of the rotation external member
Stop and the syringe needle keep mutually being clamped between the outer stop section of seat, and the syringe needle is made to keep seat can not be with being moved down on the trigger shaft
Dynamic, when the rotation external member is located at the second position, the interior stop section of the rotation external member keeps the outer stop section of seat with the syringe needle
Between be separated from each other, the syringe needle is enable to keep synchronous with the trigger shaft start of seat.
It is kept preferably, the syringe needle is stretched out on the top of the trigger shaft outside the percussion hole of seat and with one second outer shoulder, it should
Withdraw of the needle button has shoulder in one second, this in second shoulder be connected in the second outer shoulder of the trigger shaft, the withdraw of the needle button energy as a result,
The trigger shaft can be pushed to move down when being under pressure effect.Description of the drawings
Fig. 1 is the stereogram using the blood collecting pen of the present invention.
Fig. 2 is the sectional perspective exploded view of the present invention, the main relationship shown between block seat and grade bill member.
Fig. 3 is another sectional perspective exploded view of the present invention, the main relationship shown between trigger shaft and withdraw of the needle button.
Fig. 4 is the partial sectional view of the present invention, the main relationship shown between ejection ring and trigger shaft.
Fig. 5 is the longitudinal sectional view of the present invention, and main display rotation external member is located at the state of the second position.
Fig. 6 is analogous to Fig. 5, and main display rotation external member is located at the state of first position.
Fig. 7 is analogous to Fig. 6, main to show the state of withdraw of the needle button after pressing.
Primary clustering symbol description in attached drawing：
10 blood collecting pens, 12 pen bodies, 14 pen covers, 16 syringe needle, 18 push type withdraw of the needle mechanism, 20 block seats, 21 fixed sleeve parts, 22
Retaining hole, 23 rotation external members, in 24 stop section, P1 first positions, the P2 second positions, 30 percussion units, and 31 syringe needles keep seat, and 32
Hole is fired, shoulder in 33 first, 34 outer stop sections, 35 notches, 36 trigger shafts, 37 end caps, 38 first outer shoulders, 39 second outer shoulders
Portion, 40 withdraw of the needle buttons, 41 covers, 42 sets of holes, in 43 holding section, 44 ejection rings, 45 ring bodies, shoulder in 46 second, 47 adjutages, and 48
Outer holding section, 49 return springs.
Specific embodiment
It please refers to Fig.1 and Fig. 2, blood collecting pen 10 shown in figure mainly includes a pen body 12 and a pen cover 14, pen cover 14
It is arranged in the bottom end of pen body 12.The present invention push type withdraw of the needle mechanism 18 include a block seat 20, blow bill member 30 and
One withdraw of the needle button 40.
Block seat 20 has a fixed sleeve part 21 and a rotation external member 23, fixed sleeve part 21 be fixed on the bottom end of pen body 12 and
Covered for 14 sets by pen cover, rotation external member 23 be rotationally sheathed on fixed sleeve part 21 and between pen body 12 and fixed sleeve part 21 it
Between, in addition, a retaining hole 22 is run through in the both ends of fixed sleeve part 21, the inner peripheral surface of rotation external member 23 has stop section 24 in one,
Interior stop section 24 is located at outside the retaining hole 22 of fixed sleeve part 21.
Firing unit 30, there is a syringe needle to keep seat 31, as shown in Fig. 2, syringe needle keeps seat 31 to be arranged in fixed sleeve part 21
In retaining hole 22, syringe needle keeps the both ends of seat 31 to run through blow hair engaging aperture 32, plugs fixation with for a syringe needle 16, fires hole 32
Top there is shoulder 33 (as shown in Figure 5) in one first, moreover, syringe needle keeps the peripheral surface of seat 31 with an outer stop section 34
And the notch 35 for being opened in outer stop section 34, when rotating external member 23 and being located at a first position P1, as shown in fig. 6, rotary sleeve
The interior stop section 24 of part 23 can stretch into syringe needle and keep in the notch 35 of seat 31 and between the outer stop section 34 of syringe needle holding seat 31
Mutually clamping makes syringe needle keep seat 31 that can not be moved up and down in the retaining hole 22 of fixed sleeve part 21, when rotation external member 23 is located at
During one second position P2, as shown in Figures 5 and 6, the interior stop section 24 of rotation external member 23 can leave the notch that syringe needle keeps seat 31
35 and syringe needle keep seat 31 outer stop section 34 between be separated from each other, enable syringe needle keep seat 31 in the holding of fixed sleeve part 21
It is moved up and down in hole 22.
Then as shown in Figures 2 and 3, percussion unit 30 also has a trigger shaft 36, and the bottom end of trigger shaft 36 can axially be moved
It is arranged in syringe needle dynamicly to keep in the percussion hole 32 of seat 31, to generate firing action to syringe needle 16, the top of trigger shaft 36 is stretched
Go out syringe needle to keep the percussion hole 32 of seat 31 outer and be arranged with an end cap 37, in addition, the peripheral surface of trigger shaft 36 has outside one first
Shoulder 38 and one is located at the second outer shoulder 39 of the first outer 38 top of shoulder, and the first outer shoulder 38 therein is connected in syringe needle holding
Shoulder 33 (as shown in Figure 5) in the first of seat 31 so that trigger shaft 36 can synchronous drive syringe needle holding seat 31 during loading
Towards far from syringe needle 16 direction move, and during percussion can by syringe needle keep seat 31 drive and together towards syringe needle 16
It moves in direction.
As shown in Figures 3 and 4, withdraw of the needle button 40 has a cover 41 and an ejection ring 44.Cover 41 have a sets of holes 42 and
The top of pen body 12 is sheathed on by sets of holes 42, the hole wall of sets of holes 42 has two opposite interior holding sections 43；Ejection ring 44 has one
Ring body 45, ring body 45 are sheathed on the top of trigger shaft 36, moreover, the inner ring surface of ring body 45 has shoulder in two opposite second
46, to be connected in the second of trigger shaft 36 the outer shoulder 39, in addition, the outer ring surface of ring body 45 relatively extends two adjutages
47, each adjutage 47 has an outer holding section 48 and the interior holding section 43 of cover 41 is connected in by outer holding section 48, makes ejection
Ring 44 is fixed in the sets of holes 42 of cover 41.On the other hand, withdraw of the needle button 40 also has a return springs 49, return springs 49
It is sheathed on trigger shaft 36 and is resisted against between the ring body 45 of ejection ring 44 and end cap 37, reset effect to provide trigger shaft 36
Fruit.
After operation trigger shaft 36 is completed to the firing action of syringe needle 16, medical staff needs to proceed by the withdraw of the needle
Action.Pen cover 14 is first removed in operation, is exposed outside syringe needle 16, then turns to rotation external member 23 as shown in Figure 6
First position P1 and then syringe needle 16 is inserted on a pinhead sleeve (not shown), syringe needle at this time keeps seat 31 can be because
It can not be moved up and down to be limited by the rotation external member 23 of block seat 20, then exert a force pressing withdraw of the needle button 40 again, makes the withdraw of the needle
The ejection ring 44 of button 40 pushes trigger shaft 36 down, and syringe needle 16 can so be released to the percussion hole 32 that syringe needle keeps seat 31
Outside, as shown in Figure 7, the pressure to withdraw of the needle button 40 is finally discharged again, and trigger shaft 36 is made to be acted on by the elastic force of return springs 49
And return to syringe needle and keep in the percussion hole 32 of seat 31, syringe needle 16 at this time can be rested on pinhead sleeve, and medical staff can incite somebody to action
Syringe needle 16 is abandoned together with pinhead sleeve.When being examined later to blood was collected again, medical staff must will rotate external member 23
Rotation to second position P2 as shown in Figure 5, enable syringe needle keep seat 31 and trigger shaft 36 synchronize move up and down, at this time could
The action that the needle body newly installed is loaded and fired.
It is touched in conclusion the push type withdraw of the needle mechanism 18 of the present invention can allow medical staff to be reduced during the withdraw of the needle
The chance of needle body operationally also as using mechanical pencil, can be completed with one-handed performance, laborsaving and conveniently, thus
Convenience and the safety of withdraw of the needle process can be substantially improved, to reduce the risk surprisingly stabbed by syringe needle.
Claims (6)
1. a kind of push type withdraw of the needle mechanism for blood collecting pen includes：
One block seat has stop section in one；
There is a blow bill member syringe needle to keep seat and a trigger shaft, which keeps seat to be set on the block seat, which keeps
The peripheral surface of seat has an outer stop section, which is connected in the interior stop section of the block seat, which keeps the two of seat
End is through there is blow hair engaging aperture, and the hole wall in the percussion hole has shoulder in one first, which is axially displaceably arranged in this
Syringe needle keeps in the percussion hole of seat and has one first outer shoulder, which is connected in the syringe needle and keeps in the first of seat
Shoulder；
And a withdraw of the needle button, it is sheathed on the top of the trigger shaft；
Wherein, the top of the trigger shaft is stretched out the syringe needle and is kept outside the percussion hole of seat and with one second outer shoulder, the withdraw of the needle button
With shoulder in one second, this in second shoulder be connected in the second outer shoulder of the trigger shaft.
2. it is used for the push type withdraw of the needle mechanism of blood collecting pen according to claim 1, wherein, which has a fixed sleeve part
And a rotation external member, the fixed sleeve part are equipped with the syringe needle through there is a retaining hole, in the retaining hole and keep seat, rotation external member tool
There is the interior stop section and the fixed sleeve part can be rotationally sheathed between a first position and a second position, when the rotary sleeve
When part is located at the first position, the interior stop section of the rotation external member and the syringe needle keep mutually being clamped between the outer stop section of seat,
When the rotation external member is located at the second position, between the outer stop section of the interior stop section of the rotation external member and syringe needle holding seat
It is separated from each other.
3. it is used for the push type withdraw of the needle mechanism of blood collecting pen according to claim 2, wherein, which keeps the outer stop section of seat
With a notch, when the rotation external member is located at the first position, the interior stop section of the rotation external member stretches into the syringe needle and keeps seat
Notch in and the syringe needle keep seat outer stop section between be mutually clamped, when the rotation external member is located at the second position,
The interior stop section of the rotation external member leave the syringe needle keep seat notch and the syringe needle keep seat outer stop section between mutually
It separates.
4. it is used for the push type withdraw of the needle mechanism of blood collecting pen according to claim 1, wherein, which has a cover and one
Ejection ring, the cover have a sets of holes, which is fixed in the sets of holes of the cover and is sheathed on the top of the trigger shaft, should
The inner ring surface of ejection ring has the shoulder in second.
5. it is used for the push type withdraw of the needle mechanism of blood collecting pen according to claim 4, wherein, the hole wall of the sets of holes of the cover has
Holding section in one, the ejection ring have a ring body and two adjutages, and the inner ring surface of the ring body has the shoulder in second, this two prolongs
Semi-girder relatively extends from the outer ring surface of the ring body and is respectively provided with an outer holding section, which is connected in the cover
Interior holding section.
6. it is used for the push type withdraw of the needle mechanism of blood collecting pen according to claim 5, wherein, which has an end cap,
The end cap is fixed on the top of the trigger shaft, which has a return springs, which is sheathed on the percussion
It bar and is resisted against between the ring body of the end cap and the ejection ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410140609.9A CN104970807B (en) | 2014-04-09 | 2014-04-09 | For the push type withdraw of the needle mechanism of blood collecting pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410140609.9A CN104970807B (en) | 2014-04-09 | 2014-04-09 | For the push type withdraw of the needle mechanism of blood collecting pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104970807A CN104970807A (en) | 2015-10-14 |
| CN104970807B true CN104970807B (en) | 2018-06-19 |
Family
ID=54268172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410140609.9A Expired - Fee Related CN104970807B (en) | 2014-04-09 | 2014-04-09 | For the push type withdraw of the needle mechanism of blood collecting pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104970807B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108836357B (en) * | 2018-07-25 | 2024-02-23 | 天津华鸿科技股份有限公司 | Blood sampling pen capable of withdrawing needle and assembling method |
| CN109512437B (en) * | 2018-12-18 | 2021-05-07 | 苏州施莱医疗器械有限公司 | Needle type blood sampling pen without cap dismounting |
| CN109512438B (en) * | 2018-12-18 | 2021-05-07 | 苏州施莱医疗器械有限公司 | Shooting rod split type blood sampling pen |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1602807A (en) * | 2003-09-30 | 2005-04-06 | 钱倚天 | Disposable safety acupuncture hemostix |
| 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 |
| CN203828941U (en) * | 2014-04-09 | 2014-09-17 | 睿康生医股份有限公司 | Press type needle retreating mechanism used for blood sampling pen |
-
2014
- 2014-04-09 CN CN201410140609.9A patent/CN104970807B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1602807A (en) * | 2003-09-30 | 2005-04-06 | 钱倚天 | Disposable safety acupuncture hemostix |
| 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 |
| CN203828941U (en) * | 2014-04-09 | 2014-09-17 | 睿康生医股份有限公司 | Press type needle retreating mechanism used for blood sampling pen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104970807A (en) | 2015-10-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180619 Termination date: 20190409 |
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| CF01 | Termination of patent right due to non-payment of annual fee |