CN104970807A - Push type needle retreating mechanism used for blood sampling pen - Google Patents
Push type needle retreating mechanism used for blood sampling pen Download PDFInfo
- Publication number
- CN104970807A CN104970807A CN201410140609.9A CN201410140609A CN104970807A CN 104970807 A CN104970807 A CN 104970807A CN 201410140609 A CN201410140609 A CN 201410140609A CN 104970807 A CN104970807 A CN 104970807A
- Authority
- CN
- China
- Prior art keywords
- syringe needle
- needle holder
- stop section
- withdraw
- external member
- 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.)
- Granted
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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)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A push type needle retreating mechanism used for a blood sampling pen comprises a stopping base, a cocking unit and a needle treating button, wherein the cocking unit is provided with a syringe needle holding base and a cocking rod, the syringe needle holding base and the stopping base are clamped together, the cocking rod penetrates in the syringe needle holding base in an axially moving mode, the needle retreating button is arranged at the top end of the cocking rod in a sleeving mode and used for pushing the cocking rod downwards, and in this way, by means of the clamping relation between the stopping base and the syringe needle holding base, the cocking rod can push a syringe needle out of the holding base under the condition that the syringe needle holding base is kept motionless, so that the needle retreating action is smoothly completed, and the risk of a wound stabbed by the syringe needle is effectively reduced.
Description
Technical field
The present invention is relevant with blood collecting pen, especially a kind of pressing type withdraw of the needle mechanism for blood collecting pen.
Background technology
Conveniently the blood gathered by inspection people is tested; medical personnel can carry out blood sampling action by blood collecting pen at the skin-piercing one little place wound by inspection people usually; after blood sampling is complete; because syringe needle has attached the blood of human body; so the syringe needle after use must be carried out safe handling, to avoid medical personnel or other people generation by the situation of needle sting.
With regard to the current safe handling to syringe needle, modal mode is taken off from needle stand by needle body by rotation needle body, afterwards needle body is thrust again pinhead sleeve again row abandon, but in this withdraw of the needle process, medical personnel may, because itself careless or under being subject to situation that other external force push, cause syringe needle surprisingly thrust the hand of medical personnel and increase the infected risk of medical personnel.
Summary of the invention
The object of the present invention is to provide a kind of pressing type withdraw of the needle mechanism for blood collecting pen, it can promote convenience in withdraw of the needle process and safety, to reduce by the risk of accidental needle sticks.
For achieving the above object, pressing type withdraw of the needle mechanism provided by the invention includes a block seat, blow bill unit, and a withdraw of the needle button.This block seat has stop section in; This percussion unit has a syringe needle holder and a trigger shaft, this syringe needle holder is located in this block seat, fix with for a syringe needle, the outer peripheral face of this syringe needle holder has an outer stop section, this outer stop section is connected in the interior stop section of this block seat, and, blow hair engaging aperture is run through in the two ends of this syringe needle holder, the hole wall in this percussion hole has shoulder in one first, there is one first outer shoulder in the percussion hole that this trigger shaft axially movably can be arranged in this syringe needle holder, this first outer shoulder be connected in this syringe needle holder first in shoulder; This withdraw of the needle button is sheathed on the top of this trigger shaft, moves up and down in order to drive this trigger shaft.
Thus, in the process that this trigger shaft moves down, because this syringe needle holder can be limited by the stop of this block seat, this syringe needle can be released outside this syringe needle holder, to complete withdraw of the needle action by this trigger shaft under the situation that this syringe needle holder keeps motionless.
Preferably, this block seat has a fixed sleeve part and and rotates external member, this fixed sleeve part runs through a retaining hole, is provided with this syringe needle holder in this retaining hole, and this rotation external member has this interior stop section and can be sheathed on this fixed sleeve part rotationally between a primary importance and a second position.Thus, when this rotation external member is positioned at this primary importance, mutual clamping between the interior stop section of this rotation external member and the outer stop section of this syringe needle holder, this syringe needle holder cannot be moved up and down along with this trigger shaft, when this rotation external member is positioned at this second position, be separated from each other between the interior stop section of this rotation external member and the outer stop section of this syringe needle holder, make this syringe needle holder can start synchronous with this trigger shaft.
Preferably, there is one second outer shoulder outside the percussion hole that this syringe needle holder is stretched out on the top of this trigger shaft, this withdraw of the needle button has shoulder in one second, this in second shoulder be connected in the second outer shoulder of this trigger shaft, thus, this withdraw of the needle button can promote this trigger shaft and moves down when being under pressure effect.Accompanying drawing explanation
Fig. 1 is the axonometric chart using blood collecting pen of the present invention.
Fig. 2 is sectional perspective exploded view of the present invention, the relation between main display block seat and level bill unit.
Fig. 3 is another sectional perspective exploded view of the present invention, the relation between main display trigger shaft and withdraw of the needle button.
Fig. 4 is partial sectional view of the present invention, the relation between main display pushing and withstanding ring and trigger shaft.
Fig. 5 is longitudinal sectional view of the present invention, and main display rotates the state that external member is positioned at the second position.
Fig. 6 is analogous to Fig. 5, and main display rotates the state that external member is positioned at primary importance.
Fig. 7 is analogous to Fig. 6, main display withdraw of the needle button state after pressing.
Primary clustering symbol description in accompanying drawing:
10 blood collecting pens, 12 bodies, 14 caps, 16 syringe needle 18 pressing type withdraw of the needle mechanisms, 20 block seats, 21 fixed sleeve part, 22 retaining holes, 23 rotate external member, stop section in 24, P1 primary importance, the P2 second position, 30 percussion unit, 31 syringe needle holder, 32 percussion holes, shoulder in 33 first, 34 outer stop sections, 35 breach, 36 trigger shafts, 37 end caps, 38 first outer shoulders, 39 second outer shoulders, 40 withdraw of the needle buttons, 41 lids, 42 trepannings, holding section in 43, 44 pushing and withstanding rings, 45 ring bodies, shoulder in 46 second, 47 adjutages, 48 outer holding sections, 49 return springs.
Detailed description of the invention
Refer to Fig. 1 and Fig. 2, the blood collecting pen 10 shown in figure consists predominantly of a body 12 and a cap 14, and cap 14 is arranged in the bottom of a body 12.Pressing type withdraw of the needle mechanism 18 of the present invention includes a block seat 20, blow bill unit 30, and a withdraw of the needle button 40.
Block seat 20 has a fixed sleeve part 21 and and rotates external member 23, fixed sleeve part 21 be fixed on a body 12 bottom and overlap by cap 14 and cover, rotate external member 23 and be sheathed on fixed sleeve part 21 rotationally and between a body 12 and fixed sleeve part 21, in addition, a retaining hole 22 is run through in the two ends of fixed sleeve part 21, the inner peripheral surface rotating external member 23 has stop section 24 in, and interior stop section 24 is positioned at outside the retaining hole 22 of fixed sleeve part 21.
Percussion unit 30 has a syringe needle holder 31, as shown in Figure 2, syringe needle holder 31 is arranged in the retaining hole 22 of fixed sleeve part 21, blow hair engaging aperture 32 is run through in the two ends of syringe needle holder 31, with plugging fixing for a syringe needle 16, the top in percussion hole 32 has shoulder 33 (as shown in Figure 5) in one first, and, the outer peripheral face of syringe needle holder 31 has the breach 35 that an outer stop section 34 and is opened in outer stop section 34, when rotating external member 23 and being positioned at a primary importance P1, as shown in Figure 6, rotate the interior stop section 24 of external member 23 can stretch into syringe needle holder 31 breach 35 in and and mutual clamping between the outer stop section 34 of syringe needle holder 31, syringe needle holder 31 cannot be moved up and down in the retaining hole 22 of fixed sleeve part 21, when rotating external member 23 and being positioned at a second position P2, as shown in Figures 5 and 6, rotate the interior stop section 24 of external member 23 can leave syringe needle holder 31 breach 35 and and be separated from each other between the outer stop section 34 of syringe needle holder 31, syringe needle holder 31 can be moved up and down in the retaining hole 22 of fixed sleeve part 21.
Then as shown in Figures 2 and 3, percussion unit 30 also has a trigger shaft 36, the bottom of trigger shaft 36 can axially movably be arranged in the percussion hole 32 of syringe needle holder 31, in order to produce firing action to syringe needle 16, the percussion hole 32 of the top extended needle holder 31 of trigger shaft 36 is outer and be arranged with an end cap 37, in addition, the outer peripheral face of trigger shaft 36 has one first outer shoulder 38 and and is positioned at the second outer shoulder 39 above the first outer shoulder 38, wherein first outer shoulder 38 be connected in syringe needle holder 31 first in shoulder 33 (as shown in Figure 5), trigger shaft 36 is made can synchronously to drive syringe needle holder 31 to move towards the direction away from syringe needle 16 in the process of loading, and in percussion process can drive by syringe needle holder 31 and together move towards the direction of syringe needle 16.
As shown in Figures 3 and 4, withdraw of the needle button 40 has lid 41 and a pushing and withstanding ring 44.Lid 41 has a trepanning 42 and is sheathed on the top of a body 12 by trepanning 42, and the hole wall of trepanning 42 has two relative interior holding sections 43; Pushing and withstanding ring 44 has a ring body 45, ring body 45 is sheathed on the top of trigger shaft 36, and, the inner ring surface of ring body 45 has shoulder 46 in two relative second, in order to be connected in trigger shaft 36 second 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 is connected in holding section 43 in lid 41 by outer holding section 48, and pushing and withstanding ring 44 is fixed in the trepanning 42 of lid 41.On the other hand, withdraw of the needle button 40 also has a return springs 49, and return springs 49 is sheathed on trigger shaft 36 and is resisted against between the ring body 45 of pushing and withstanding ring 44 and end cap 37, in order to provide reset effect to trigger shaft 36.
After completing the firing action to syringe needle 16 at operation trigger shaft 36, medical personnel need to start the action carrying out the withdraw of the needle.Cap 14 is first taken off when operating, syringe needle 16 is exposed outside, then after rotation external member 23 being turned to primary importance P1 as shown in Figure 6, again syringe needle 16 is inserted on a pinhead sleeve (not shown), syringe needle holder 31 now cannot be able to move up and down because being subject to the restriction of the rotation external member 23 of block seat 20, then force presses withdraw of the needle button 40 again, trigger shaft 36 is down promoted by the pushing and withstanding ring 44 of withdraw of the needle button 40, so can syringe needle 16 be released outside the percussion hole 32 of syringe needle holder 31, as shown in Figure 7, the last pressure discharged again withdraw of the needle button 40, trigger shaft 36 is made to get back in the percussion hole 32 of syringe needle holder 31 by the elastic force effect of return springs 49, syringe needle 16 at this time can rest on pinhead sleeve, syringe needle 16 can abandon together with pinhead sleeve by medical personnel.Time afterwards to again carry out blood sampling examination, rotation external member 23 must rotate to second position P2 as shown in Figure 5 by medical personnel, syringe needle holder 31 synchronously can be moved up and down with trigger shaft 36, at this time could load and the action of pulling the trigger to the new needle body installed.
In sum, pressing type withdraw of the needle mechanism 18 of the present invention can allow medical personnel in withdraw of the needle process, reduce the chance touching needle body, operationally also as use mechanical pencil, one-handed performance is used to complete, laborsaving and convenient, thus convenience and the safety of withdraw of the needle process can significantly be promoted, to reduce by the risk of accidental needle sticks.
Claims (7)
1., for a pressing type withdraw of the needle mechanism for blood collecting pen, include:
One block seat, has stop section in;
Blow bill unit, there is a syringe needle holder and a trigger shaft, this syringe needle holder is located at this block seat, the outer peripheral face of this syringe needle holder has an outer stop section, this outer stop section is connected in the interior stop section of this block seat, the two ends of this syringe needle holder are run through blow hair engaging aperture, the hole wall in this percussion hole has shoulder in one first, there is one first outer shoulder in the percussion hole that this trigger shaft axially movably can be arranged in this syringe needle holder, this first outer shoulder be connected in this syringe needle holder first in shoulder; And
One withdraw of the needle button, is sheathed on the top of this trigger shaft.
2. according to claim 1 for the pressing type withdraw of the needle mechanism of blood collecting pen, wherein, this block seat has a fixed sleeve part and and rotates external member, this fixed sleeve part runs through a retaining hole, this syringe needle holder is provided with in this retaining hole, this rotation external member has this interior stop section and can be sheathed on this fixed sleeve part rotationally between a primary importance and a second position, when this rotation external member is positioned at this primary importance, mutual clamping between the interior stop section of this rotation external member and the outer stop section of this syringe needle holder, when this rotation external member is positioned at this second position, be separated from each other between the interior stop section of this rotation external member and the outer stop section of this syringe needle holder.
3. according to claim 2 for the pressing type withdraw of the needle mechanism of blood collecting pen, wherein, the outer stop section of this syringe needle holder has a breach, when this rotation external member is positioned at this primary importance, in the breach that this syringe needle holder is stretched in the interior stop section of this rotation external member and and mutual clamping between the outer stop section of this syringe needle holder, when this rotation external member is positioned at this second position, the interior stop section of this rotation external member is left the breach of this syringe needle holder and and is separated from each other between the outer stop section of this syringe needle holder.
4. according to claim 1 for the pressing type withdraw of the needle mechanism of blood collecting pen, wherein, have one second outer shoulder outside the percussion hole that this syringe needle holder is stretched out on the top of this trigger shaft, this withdraw of the needle button has shoulder in one second, this in second shoulder be connected in the second outer shoulder of this trigger shaft.
5. according to claim 4 for the pressing type withdraw of the needle mechanism of blood collecting pen, wherein, this withdraw of the needle button has a lid and a pushing and withstanding ring, this lid has a trepanning, be sheathed on the top of this trigger shaft in the trepanning that this pushing and withstanding ring is fixed on this lid, the inner ring surface of this pushing and withstanding ring has this shoulder in second.
6. according to claim 5 for the pressing type withdraw of the needle mechanism of blood collecting pen, wherein, the hole wall of the trepanning of this lid has holding section in, this pushing and withstanding ring has a ring body and two adjutages, the inner ring surface of this ring body has this shoulder in second, this two adjutage relatively extends from the outer ring surface of this ring body and has an outer holding section respectively, and this outer holding section is connected in the interior holding section of this lid.
7. according to claim 6 for the pressing type withdraw of the needle mechanism of blood collecting pen, wherein, this percussion unit has an end cap, this end cap is fixed on the top of this trigger shaft, this withdraw of the needle button has a return springs, and this return springs is sheathed on this trigger shaft and is resisted against between the ring body of this end cap and this pushing and withstanding 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 true CN104970807A (en) | 2015-10-14 |
| CN104970807B 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108836357A (en) * | 2018-07-25 | 2018-11-20 | 天津华鸿科技股份有限公司 | It is a kind of can the withdraw of the needle blood collecting pen and assemble method |
| CN109512437A (en) * | 2018-12-18 | 2019-03-26 | 苏州施莱医疗器械有限公司 | Exempt to unload cap handling pin type blood collecting pen |
| CN109512438A (en) * | 2018-12-18 | 2019-03-26 | 苏州施莱医疗器械有限公司 | Penetrate the split type blood collecting pen of bar |
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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108836357A (en) * | 2018-07-25 | 2018-11-20 | 天津华鸿科技股份有限公司 | It is a kind of can the withdraw of the needle blood collecting pen and assemble method |
| 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 |
| CN109512437A (en) * | 2018-12-18 | 2019-03-26 | 苏州施莱医疗器械有限公司 | Exempt to unload cap handling pin type blood collecting pen |
| CN109512438A (en) * | 2018-12-18 | 2019-03-26 | 苏州施莱医疗器械有限公司 | Penetrate the split type blood collecting pen of bar |
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104970807B (en) | 2018-06-19 |
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| 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 |