CN108498105B - A kind of blood-taking device fence type damping correcting structure - Google Patents
A kind of blood-taking device fence type damping correcting structure Download PDFInfo
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- CN108498105B CN108498105B CN201810373003.8A CN201810373003A CN108498105B CN 108498105 B CN108498105 B CN 108498105B CN 201810373003 A CN201810373003 A CN 201810373003A CN 108498105 B CN108498105 B CN 108498105B
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- needle
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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
- A61B5/15126—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides
- A61B5/15132—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides comprising tooth-shaped elements, e.g. toothed wheel or rack and pinion
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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
- A61B5/15126—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides
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- Heart & Thoracic Surgery (AREA)
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Abstract
A kind of blood-taking device fence type damping correcting structure, including blood taking needle and casing, it is characterised in that: at least two elastic claws are set in bushing head, each elastic claw is equipped with guiding surface in the circumferentially-spaced distribution of bushing head, while in bushing head medial surface.In blood taking needle emission process, the direction of ejection that blood taking needle is guided using guiding surface plays buffer function using the elasticity of elastic claw, and the combination of this structure design both can effectively prevent needle point shake, the phenomenon that can effectively prevent secondary puncture again generation, and do not need to increase additional elements.This programme design rationally, is skillfully constructed, the sound that the shock strength and shock when can not only effectively mitigate feeling of pain when needle body is pierced into human skin, but also can weaken blood taking needle transmitting are issued.
Description
Technical field
The present invention relates to Medical blood sampling equipment field, in particular to the fence type of a kind of blood-taking device damps correcting knot
Structure, the damping correcting structure can not only prevent secondary puncture, Er Qieke in blood taking needle shooting course by damping buffering
To prevent the shake of blood sampling pin puncture hour hands point well, feeling of pain when puncture is significantly reduced.
Background technique
Medical blood sampling equipment is a kind of medical blood taking instrument, is largely used in each medical institutions and diabetic.
The structure type of Medical blood sampling equipment is varied, but can generally be divided into blood collecting pen and disposable blood taking device two major classes.It adopts
Blood pen is a kind of pen type medical blood taking device, and blood collecting pen is matched with blood taking needle under normal conditions, and blood collecting pen is equivalent to pistol
It can repeatedly use, and blood taking needle is equivalent to bullet, in order to which safety can only be disposable.And disposable blood taking device is carried and is adopted
Blood needle and ejection mechanism, and it is small in size with its, welcome for characteristic is deep by medical staff and patient using safe, easy to operate.
For many years, blood collecting pen and disposable blood taking device are constantly in continuously improve and develop among, wherein how to subtract
Light needle body is pierced into feeling of pain when human skin, is the hot issue of those skilled in the art's concern always.
Chinese patent CN103300867A discloses one entitled " a kind of blood-taking device of the needle outlet with buffer unit ",
Application No. is 201310272106.2 applications for a patent for invention.The patent application case is shaken to reduce needle point when puncture,
Buffer unit is specially provided on the inside of needle outlet.Although this design can bring certain buffering effect, existing deficiency
It is: first, other components are needed, cause structure is complicated to change；Second, there is no correcting effect to blood taking needle in puncture blood collecting,
Also needle point shake is easily caused.
Chinese patent CN104068866B bulletin authorizes a kind of entitled " the blood collecting pen pen for preventing blood taking needle from shaking
Cap ", the patent of invention of Patent No. 201410314138.9.The art solutions to prevent blood taking needle shake have actively effect
Fruit, but due to the limitation of the patent structure, blood taking needle head is constrained and correcting by anti-elastic slice clamping force of mixing before puncturing, and blood taking needle
Tail portion is due to being in relaxed state, and tail portion generates swing because of imbalance when puncturing impact, ultimately causes needle point shake.Blood taking needle
Tail portion imbalance be anti-to be mixed elastic slice clamping by rigid limit inner wall and the flexibility of pen cap front and cooperatively formed.In addition, the patent
Technical solution buffering effect when taking a blood sample pin puncture shooting is poor, is easy to produce secondary puncture, i.e., due to spring after blood taking needle transmitting
Simple harmonic oscillation is done in drive back and forth, produces secondary puncture, feeling of pain of the aggravation by user again on the basis of a property punctures.For this purpose,
Shake when how to prevent secondary puncture while reducing blood sampling pin puncture is the project that the present invention studies.
Summary of the invention
In view of above the shortcomings of the prior art, the present invention provides a kind of blood-taking device fence type damping correcting knot
Structure its purpose is to reduce shake when blood sampling pin puncture, while preventing secondary puncture, solves existing Medical blood sampling equipment
The two cannot take into account and the problem of effect difference.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of blood-taking device fence type damping correcting structure, including one for the blood taking needle of puncture blood collecting and one
Cooperate with blood taking needle and be used to limit the casing of blood taking needle direction of ejection and distance.
The blood taking needle is connected and composed by needle body and needle handle, and the needle point on needle body head is before needle handle under battery
End face is stretched out；Blood sample-taking end face is equipped on the outside of described sleeve pipe head, blood sample-taking end face is equipped with needle outlet, in shooting puncture state knit stitch
Point passes through needle outlet and pierces out.
Its innovation is: described sleeve pipe head is equipped with elastic claw, and elastic claw is quantitatively at least formed by two, each elasticity
Bushing head is arranged to split around several fence types of needle outlet distribution by pawl in the circumferentially-spaced distribution of bushing head with this
Valve, each rip-panel are formed by an elastic claw；Described sleeve pipe inner portion face is equipped with guiding surface relative to casing axis, is penetrating
It hits each guiding surface under state to be slidably matched with blood taking needle outer rim, so that blood taking needle direction of ejection is guided, before blood taking needle needle handle
Buffering is generated when elastic claw is hit in end face to deform and limit blood taking needle catapulting distance.
The related content and change interpretation of above-mentioned technical proposal are as follows:
1. in above scheme, " preceding " expression blood taking needle needle point direction in " front end face ", then indicate with
" preceding " opposite direction.
2. in above scheme, " blood-taking device " includes blood collecting pen and disposable blood taking device two major classes." casing "
It is a kind of generality description, or is upperseat concept, pen cap is referred to for blood collecting pen, for disposable blood taking device
Refer to the front of shell.
Working principle and effect of the present invention are: in order to reduce shake when blood sampling pin puncture, while preventing secondary puncture from sending out
Raw, at least two elastic claws are arranged in bushing head in this programme, each elastic claw in the circumferentially-spaced distribution of bushing head, while
Bushing head medial surface is equipped with guiding surface.In blood taking needle emission process, the ejection of blood taking needle is guided using guiding surface
Direction, then plays buffer function using the elasticity of elastic claw when blood taking needle is hit, and the combination of this structure design can have
Effect prevents needle point from shaking, and generation the phenomenon that can effectively prevent secondary puncture, and does not need to increase additional elements.The present invention
Design rationally, is skillfully constructed, and can not only effectively mitigate feeling of pain when needle body is pierced into human skin, but also can weaken and adopt
The sound that shock strength and shock when blood needle emits are issued.
Detailed description of the invention
Fig. 1 is 1 casing perspective view of the embodiment of the present invention；
Fig. 2 is 1 casing three-dimensional cutaway view of the embodiment of the present invention；
Fig. 3 is 1 box face figure of the embodiment of the present invention；
Fig. 4 is that 1 blood taking needle of the embodiment of the present invention emits front cross sectional view；
Fig. 5 is that 1 blood taking needle of the embodiment of the present invention hits elastic claw front cross sectional view；
Fig. 6 is that 1 blood taking needle of the embodiment of the present invention hits cross-sectional view after elastic claw；
Fig. 7 is that 1 casing-tube elastic pawl another kind of the embodiment of the present invention changes cross-sectional view；
Fig. 8 is 2 casing perspective view of the embodiment of the present invention；
Fig. 9 is 2 casing three-dimensional cutaway view of the embodiment of the present invention；
Figure 10 is 2 box face figure of the embodiment of the present invention；
Figure 11 is that 2 blood taking needle of the embodiment of the present invention emits front cross sectional view；
Figure 12 is that 2 blood taking needle of the embodiment of the present invention hits elastic claw front cross sectional view；
Figure 13 is that 2 blood taking needle of the embodiment of the present invention hits cross-sectional view after elastic claw.
Label declaration in the figures above is as follows:
1. casing；2. blood taking needle；3. blood sample-taking end face；4. needle outlet；5. guiding surface；6. elastic claw；7. protrusion；8. point
Cut slot.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments:
A kind of embodiment 1: blood-taking device fence type damping correcting structure
Referring to shown in attached drawing 1-6, fence type damping correcting structure includes that the blood taking needle 2(for being used to puncture blood collecting is shown in
Fig. 4) and one cooperates with blood taking needle 2 and sees Fig. 1-3 for limiting the casing 1(of 2 direction of ejection of blood taking needle and distance).
The blood taking needle 2 connects and composes (see figure 4) by needle body and needle handle, under battery the needle point on needle body head from
The front end face of needle handle stretches out.It is equipped with blood sample-taking end face 3(on the outside of 1 head of described sleeve pipe and sees Fig. 1), blood sample-taking end face 3 is equipped with needle outlet
4, in the case where shooting puncture state, needle point passes through needle outlet 4 and pierces out (see figure 6).
The above structure is the prior art for blood-taking device, in order to reduce shake when blood sampling pin puncture, is prevented simultaneously
Secondary puncture occurs, and innovation of the invention is: being equipped with elastic claw 6(on 1 head of described sleeve pipe and sees Fig. 1 and Fig. 3), elastic claw 6
It is quantitatively formed by four, four elastic claws 6 are uniformly distributed 1 head of casing is circumferentially-spaced, with this by 1 head cloth of casing
Four fence type rip-panels being distributed around needle outlet 4 are set to, each rip-panel is formed by an elastic claw 6 (see Fig. 1 and Fig. 3).Institute
Elastic claw 6 is stated inwardly to turn back on the basis of 4 cross section of needle outlet (see Fig. 4 and Fig. 5) in a free state.1 head of described sleeve pipe
Medial surface is equipped with guiding surface 5(relative to 1 axis of casing and sees Fig. 2 and Fig. 4), each guiding surface 5 and blood sampling under shooting state
2 outer rim of needle is slidably matched, to guide 2 direction of ejection of blood taking needle, the front end face of 2 needle handle of blood taking needle generates when hitting elastic claw 6
Buffering deforms and limits 2 catapulting distance of blood taking needle.
The embodiment of the present invention is as follows using operating process:
State before 1. blood taking needle emits
Shown in Figure 4, the blood taking needle 2 in blood-taking device is located in casing 1, and the state before emitting, 2 phase of blood taking needle
Position and lock state (being not drawn into figure) is in casing 1,2 rear portion of blood taking needle should also have transmitting spring (being not drawn into figure).
2. blood taking needle hits state before elastic claw
Shown in Figure 5, the blood taking needle 2 in blood-taking device launches forward in the case where transmitting spring pushes, and adopts in ejection process
The needle handle of blood needle 2 guides direction of ejection by guiding surface 9.The arrow on 6 side of elastic claw in Fig. 5 indicates 6 pawl head of elastic claw
Deformation direction.
3. blood taking needle hits state after elastic claw
Shown in Figure 6, the blood taking needle 2 in blood-taking device continues to launch forward in the case where transmitting spring pushes, until blood sampling
The needle handle front end face of needle 2 hits the pawl head of elastic claw 6.Fig. 6 indicates the deformed state of elastic claw 6.
The present invention is hit end in the blood sampling of casing 1 and is designed using fence type rip-panel, and hits each elastic claw 6 of end
Pawl head is turned back from periphery into centre bore, when blood taking needle 2 hits pawl head:
1. guiding surface 5 set by 1 inner portion face of casing guides blood taking needle 2 to generate correcting effect；
2. buffering deformation occurs for elastic claw 6, damping is played, but also shock when blood taking needle 2 emits can be weakened
The sound that strength and shock are issued.
A kind of embodiment 2: blood-taking device fence type damping correcting structure
Referring to shown in attached drawing 8-13, fence type damping correcting structure includes that the blood taking needle 2(for being used to puncture blood collecting is shown in
Figure 11) and one cooperates with blood taking needle 2 and sees Fig. 8-10 for limiting the casing 1(of 2 direction of ejection of blood taking needle and distance).
2 difference from Example 1 of embodiment is: the corresponding casing 1 between described two adjacent elastic claws 6
Slot segmentation 8 is offered on tube wall, the root of elastic claw 6 is thin compared with embodiment 1, can change the elasticity capacity of elastic claw 6 in this way.By
Slot segmentation 8 is offered on 1 tube wall of casing corresponding to 6 root of elastic claw, so that having flexible deformation in interior lateral direction
Ability is shown in the arrow of the head side of casing 1 shown in Figure 12 and Figure 13.This elastic force is conducive to blood taking needle 2 in shooting
Correcting and buffering.
It is explained as follows below for other performances of the invention and variation:
1. in above-described embodiment, described sleeve pipe 1 is a kind of generality description, or is upperseat concept, blood collecting pen is come
It says and refers to pen cap, the front of shell is referred to for disposable blood taking device.
2. in above-described embodiment, the 6 pawl head of elastic claw is in a free state on the basis of 4 cross section of needle outlet to infolding
Turn (see figure 4).But the present invention is not limited to this, for example can be equipped with protrusion 7(in the inside of 6 pawl head of elastic claw and see Fig. 7), also have
There is identical technical effect.
4. in above-described embodiment, the quantity of elastic claw 6 is four, but the present invention is not limited to this, theoretically sees at least
Two elastic claws 6 can.It can be three, five, six, it is even more.In addition, each elastic claw 6 is in 1 head of casing week
Interval is uniformly distributed to be best upwards, can unevenly arrange.Can be in the same size between each elastic claw 6, it can also be with size not
Unanimously.
5. in above-described embodiment, in order to improve the elastic effect of elastic claw 6, the elastic claw 6 is quantitatively at least by four
A composition, all elastic 6 width of pawl are divided into two groups by size, and two groups of elastic claws 6 are on 1 head of casing circumferential upper one every a cloth
It sets, wherein the inside of small one group of elastic claw, the 6 pawl head of size is equipped with protrusion 7, or transversal with needle outlet 4 in a free state
It inwardly turns back on the basis of face.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of blood-taking device damps correcting structure with fence type, it is used to the blood taking needle (2) and one of puncture blood collecting including one
A casing (1) for cooperating with blood taking needle (2) and be used to limit blood taking needle (2) direction of ejection and distance；
The blood taking needle (2) is connected and composed by needle body and needle handle, and the needle point on needle body head is before needle handle under battery
End face is stretched out；Blood sample-taking end face (3) are equipped on the outside of described sleeve pipe (1) head, blood sample-taking end face (3) is equipped with needle outlet (4), is shooting
Needle point passes through needle outlet (4) and pierces out under puncture state；
It is characterized by: described sleeve pipe (1) head is equipped with elastic claw (6), elastic claw (6) is quantitatively at least formed by two,
Each elastic claw (6) is divided casing (1) header arrangement at around needle outlet (4) with this in the circumferentially-spaced distribution in casing (1) head
Several fence type rip-panels of cloth, each rip-panel are formed by an elastic claw (6), and each elastic claw (6) pawl head is from periphery in
The heart is turned back in hole；Described sleeve pipe (1) inner portion face is equipped with guiding surface (5) relative to casing (1) axis, under shooting state
Each guiding surface (5) is slidably matched with blood taking needle (2) outer rim, so that blood taking needle (2) direction of ejection is guided, blood taking needle (2) needle handle
Front end face hit elastic claw (6) when generate buffering deform and limit blood taking needle (2) catapulting distance.
2. fence type according to claim 1 damps correcting structure, it is characterised in that: the elastic claw (6) is in free shape
It is inwardly turned back on the basis of needle outlet (4) cross section under state.
3. fence type according to claim 1 damps correcting structure, it is characterised in that: elastic claw (6) the pawl head it is interior
Side is equipped with raised (7).
4. fence type according to claim 1 damps correcting structure, it is characterised in that: described two adjacent elastic claws
(6) slot segmentation (8) are offered on corresponding casing (1) tube wall between.
5. fence type according to claim 1 damps correcting structure, it is characterised in that: the elastic claw (6) is quantitatively
It is at least formed by four, all elastic pawl (6) width is divided into two groups by size, and two groups of elastic claws (6) are on casing (1) head
Circumferential upper one every an arrangement, wherein the inside of one group of small elastic claw (6) pawl head of size is equipped with raised (7), or in free shape
It is inwardly turned back on the basis of needle outlet (4) cross section under state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810373003.8A CN108498105B (en) | 2018-04-24 | 2018-04-24 | A kind of blood-taking device fence type damping correcting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810373003.8A CN108498105B (en) | 2018-04-24 | 2018-04-24 | A kind of blood-taking device fence type damping correcting structure |
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| CN108498105A CN108498105A (en) | 2018-09-07 |
| CN108498105B true CN108498105B (en) | 2019-08-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109394244B (en) * | 2018-11-26 | 2020-06-30 | 苏州施莱医疗器械有限公司 | Biased correcting and secondary puncture preventing blood sampling pen |
| CN111214241A (en) * | 2019-05-12 | 2020-06-02 | 天津华鸿科技股份有限公司 | Blood sampling pen |
| CN111772718B (en) * | 2020-08-13 | 2022-05-17 | 贝恩医疗设备(湖南)有限公司 | High-efficient hemostasis medical instrument |
| CN111772716B (en) * | 2020-08-13 | 2022-02-25 | 中国人民解放军总医院第八医学中心 | Medical hemostatic gun |
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| CN2652327Y (en) * | 2003-09-05 | 2004-11-03 | 施国平 | Push jet self locking type disposable safety automatic blood taking needle |
| CN104068866A (en) * | 2014-07-03 | 2014-10-01 | 天津华鸿科技有限公司 | Blood collection pen cap for preventing shake of blood collection needle |
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| CN107157494A (en) * | 2017-05-25 | 2017-09-15 | 苏州施莱医疗器械有限公司 | Press-type disposable blood taking device with spring correcting structure |
| CN107582072A (en) * | 2017-09-20 | 2018-01-16 | 苏州施莱医疗器械有限公司 | A kind of blood-taking device of flexible bridge buffer structure |
| CN208784749U (en) * | 2018-04-24 | 2019-04-26 | 苏州施莱医疗器械有限公司 | A kind of blood-taking device fence type damping correcting structure |
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2018
- 2018-04-24 CN CN201810373003.8A patent/CN108498105B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2652327Y (en) * | 2003-09-05 | 2004-11-03 | 施国平 | Push jet self locking type disposable safety automatic blood taking needle |
| CN204091993U (en) * | 2014-06-10 | 2015-01-14 | 苏州施莱医疗器械有限公司 | Prevent the disposable automatic blood-taking needle of secondary puncture |
| CN104068866A (en) * | 2014-07-03 | 2014-10-01 | 天津华鸿科技有限公司 | Blood collection pen cap for preventing shake of blood collection needle |
| CN107007289A (en) * | 2017-05-25 | 2017-08-04 | 苏州施莱医疗器械有限公司 | Rear pressure type disposable blood taking device with spring correcting structure |
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| CN108498105A (en) | 2018-09-07 |
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