CN209059221U - A kind of blood collecting pen with automatic needle backing device - Google Patents
A kind of blood collecting pen with automatic needle backing device Download PDFInfo
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- CN209059221U CN209059221U CN201820121967.9U CN201820121967U CN209059221U CN 209059221 U CN209059221 U CN 209059221U CN 201820121967 U CN201820121967 U CN 201820121967U CN 209059221 U CN209059221 U CN 209059221U
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- spring
- shell
- percussion hammer
- sliding sleeve
- needle
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Abstract
The utility model discloses a kind of blood collecting pens with automatic needle backing device, including blood taking needle, shell and pen cap, wherein: interior of shell is provided with spring footstock, second spring, spring pedestal, percussion hammer, limit sleeve, sliding sleeve, first spring, blood taking needle and gland, second spring is sleeved between spring footstock and spring pedestal, limit is set on percussion hammer lower part, sliding sleeve is movably arranged in limit sleeve, sliding sleeve shape is up big and down small ladder tubulose, first spring is arranged in the cavity between sliding sleeve small diameter tube and limit sleeve, first spring is withstood by large-diameter pipe and gland respectively up and down, blood taking needle is detachably connected sliding sleeve by needle handle；The side of percussion hammer is provided with catapult-launching gear control mechanism；The other side of percussion hammer is provided with Shang Tang mechanism.The utility model provides a kind of stable structure, and kinematic accuracy is high, with small vibration, safe and efficient, easy to operate, the wide blood collecting pen with automatic needle backing device of use scope.
Description
Technical field
The utility model belongs to the field of medical instrument technology for blood collection, and in particular to one kind has the automatic withdraw of the needle
The blood collecting pen of device.
Background technique
Blood collecting pen is to take the medical apparatus of micro peripheral blood in finger tip or arm for being used cooperatively with blood taking needle.Mesh
Preceding widest application is in diabetes field, and patient provides micro blood sample for personal detection blood glucose.With examining automatically
The rapid development of disconnected technology, the application of micro peripheral blood and the demand of blood collecting pen also can be more and more extensive, and such as vitamin D is examined
Survey etc..
Currently, there are many modes for blood collecting pen in the market, wherein emission-type blood collecting pen is a kind of relatively advanced hemostix,
It is convenient, automatic to have many advantages, such as.But the blood collecting pen pressing keys are launched after blood sampling pin puncture is entered skin, are needed
Will be by the way that manually blood taking needle be extracted, since arbitrariness is also big for manual operation, linearity is poor, and vibratility is larger when extraction,
Increase patient pain；And it manually directly pulls out needle and needs two hand compounding practices, it is inconvenient to use, there are operational hazards,
Cross contamination is easily generated, being widely used for the blood collecting pen is limited.Therefore need to develop a kind of stable structure, kinematic accuracy
Height, with small vibration, safe and efficient, easy to operate, the wide blood collecting pen with automatic needle backing device of use scope.
Utility model content
The purpose of this utility model is to provide a kind of stable structure, and kinematic accuracy is high, with small vibration, safe and efficient, operation
It is convenient, the wide blood collecting pen with automatic needle backing device of use scope.
The purpose of this utility model is achieved in that including blood taking needle, shell and pen cap, in which: interior of shell setting
There are spring footstock, second spring, spring pedestal, percussion hammer, limit sleeve, sliding sleeve, the first spring, blood taking needle and gland, spring
Footstock is located at cover top portion, and spring pedestal setting hammers top into shape in percussion, second spring be sleeved on spring footstock and spring pedestal it
Between, limit is set on percussion hammer lower part, and sliding sleeve is movably arranged in limit sleeve, and sliding sleeve shape is up big and down small ladder
Tubulose, the first spring are arranged in the cavity between sliding sleeve small diameter tube and limit sleeve, and gland screw thread spinning is outside limit sleeve
The first spring is withstood, blood taking needle is detachably connected sliding sleeve by needle handle；
The side of percussion hammer is provided with teeth, and shell is provided with the second waist hole of bar shaped, the second waist hole in teeth corresponding position
Place is provided perpendicular to the handle of shell, is provided with sliding pin in handle, and sliding pin is being provided with and tooth close to percussion hammer one end
The sphenocephaly of tooth cooperation, the other end are provided with third spring, and the top of handle is provided with fluting along its length, and fluting is equipped with
The slide key for driving sliding pin mobile；
Percussion hammers the other side opposite with teeth into shape and is provided with driving lever, and the first waist is provided on the shell of driving lever corresponding position
Hole, pulls up driving lever along the first waist hole and is able to drive percussion hammer and move up and be buckled in teeth in sphenocephaly；
Percussion hammer is symmetrically arranged with boss slider, outer casing inner wall at the radial line both ends perpendicular with teeth and driving lever line
On be equipped with sliding slot.
Further, blood taking needle is detachably connected sliding sleeve by needle handle, and detachable structure is that threaded connection or buckle connect
It connects.
Further, gland is made of elastic rubber.
The working principle of the utility model are as follows: when carrying out puncture blood collecting, dial up driving lever first, driving lever drives percussion hammer
It moves up and is buckled in teeth in sphenocephaly, then the pen cap of shell lower end is unscrewed, blood taking needle is caught in or is screwed in sliding
In set, the depth that blood taking needle is packed into is adjusted according to paracentesis depth, then handle of stopping is held for one, gland is supported and is referred in another
On the skin at end, due to the presence of sliding sleeve, blood taking needle can move up and keep blood sampling needle tip concordant with gland bottom；At this time
Thumb is pressed slide key by the hand of handle rearward, and slide key driving sliding pin moves rearward, make sphenocephaly from
At this moment tooth punching tooth loses the effect of keeping out of sphenocephaly, second spring is multiple due to being in compressive state when second spring installation
It moves down percussion hammer under the promotion of position active force, blood taking needle is driven also to move down piercing skin, during piercing, limit
Position set cannot be continued to move down by the blocking of surrounding skin, and the first spring is compressed, and the first spring is replying nature shape
It pushes sliding sleeve to move up under the active force of state, drives blood taking needle quickly to extract and leave skin, to complete entirely to take a blood sample
Journey.
The utility model has the beneficial effects that reasonable in design, stability is good, with small vibration, and kinematic accuracy is high, and safety is high
Effect, easy to operate, use scope is wide, while bringing convenience to medical work, reduces the pain of patient.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram.
Fig. 2 is A-A sectional view in Fig. 1.
In figure: 1- pen cap, 2- gland, 3- blood taking needle, the first spring of 4-, 5- needle handle, 6- limit sleeve, 7- sliding sleeve, 8- are dialled
Bar, the first waist hole of 9-, 10- percussion hammer, 11- shell, 12- spring pedestal, 13- spring footstock, 14- second spring, the second waist of 15-
Hole, 16- teeth, 17- sphenocephaly, 18- slide key, 19- fluting, 20- sliding pin, 21- third spring, 22- handle, 23- sliding slot.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings, but is not subject in any way to the utility model
Limitation instructs made any changes and modifications based on the utility model, belongs to the protection scope of the utility model.
As shown in Figs. 1-2, the utility model includes blood taking needle 3, shell 11 and pen cap 1, in which: shell 11 is internally provided with
Spring footstock 13, second spring 14, spring pedestal 12, percussion hammer 10, limit sleeve 6, sliding sleeve 7, the first spring 4,3 and of blood taking needle
Gland 2, spring footstock 13 are located at 11 top of shell, and the setting of spring pedestal 12 hammers 10 tops into shape in percussion, and second spring 14 is sleeved on
Between spring footstock 13 and spring pedestal 12, the setting of limit sleeve 6 hammers 10 lower parts into shape in percussion, and sliding sleeve 7 is movably arranged on limit sleeve 6
Interior, 7 shape of sliding sleeve is up big and down small ladder tubulose, and the first spring 4 is arranged between 7 small diameter tube of sliding sleeve and limit sleeve 6
Cavity in, 2 screw thread spinning of gland withstands the first spring 4 outside limit sleeve 6, and blood taking needle 3 is detachably connected cunning by needle handle 5
Dynamic set 7；This is the catapult-launching gear and automatic needle backing device of the blood collecting pen, catapult-launching gear using when installation in compressive state
Second spring 14, lose sphenocephaly 17 keeps out effect, moves down percussion hammer 10 under the promotion of reset response power, drives
Blood taking needle 3 is set also to move down piercing skin.Automatic needle backing device is using during piercing, and limit sleeve 6 is by skin around
The blocking of skin cannot continue to move down, and the first spring 4 is compressed, and the first spring 4 is under the active force for replying nature
It pushes sliding sleeve 7 to move up, drives blood taking needle 3 quickly to extract and leave skin.
The side of percussion hammer 10 is provided with teeth 16, and shell 11 is provided with the second waist hole 15 in 16 corresponding position of teeth, the
It is provided perpendicular to the handle 22 of shell 11 at two waist holes 15, sliding pin 20 is provided in handle 22, sliding pin 20 is hit close
10 one end of hair hammer are provided with the sphenocephaly 17 cooperated with teeth 16, and the other end is provided with third spring 21, the top edge of handle 22
Length direction is provided with fluting 19, and fluting 19 is equipped with the mobile slide key 18 of driving sliding pin 20；This is the bullet of the blood collecting pen
Injection device control mechanism.
10 other sides opposite with teeth 16 of percussion hammer are provided with driving lever 8, are arranged on the shell 11 of 8 corresponding position of driving lever
There is the first waist hole 9, pulls up driving lever 8 along the first waist hole 9 and be able to drive percussion hammer 10 and move up and be buckled in teeth 16
In sphenocephaly 17；This is the Shang Tang mechanism of the blood collecting pen.
Percussion hammer 10 is symmetrically arranged with boss slider at the radial line both ends perpendicular with teeth 16 and 8 line of driving lever, outside
Sliding slot 23 is equipped on 11 inner wall of shell.Sliding block moves in sliding slot 23, plays the role of guiding to percussion hammer 10, guarantees to adopt
The precision of rectilinear motion of blood needle 3, Oscillation Amplitude when reducing inserting needle or pulling out needle, mitigates the pain of patient.
Blood taking needle 3 is detachably connected sliding sleeve 7 by needle handle 5, and detachable structure is to be threadedly coupled or snap connection.In this way
It is convenient for changing blood taking needle 3 or adjusts the fitting depth of blood taking needle 3.
Gland 2 is made of elastic rubber.Make blood taking needle 3 inserting needle or pull out for puncture around skin have buffer shock-absorbing
Effect is conducive to the pain for mitigating patient.
Claims (3)
1. a kind of blood collecting pen with automatic needle backing device, including blood taking needle (3), shell (11) and pen cap (1), feature exists
In: shell (11) is internally provided with spring footstock (13), second spring (14), spring pedestal (12), percussion hammer (10), limit sleeve
(6), sliding sleeve (7), the first spring (4), blood taking needle (3) and gland (2), spring footstock (13) are located at the top of shell (11), bullet
Spring pedestal (12) setting hammers (10) top into shape in percussion, second spring (14) be sleeved on spring footstock (13) and spring pedestal (12) it
Between, limit sleeve (6) setting hammers (10) lower part into shape in percussion, and sliding sleeve (7) is movably arranged in limit sleeve (6), sliding sleeve (7) shape
In the cavity being arranged between sliding sleeve (7) small diameter tube and limit sleeve (6) for up big and down small ladder tubulose, the first spring (4),
Gland (2) screw thread spinning is withstood the first spring (4) outside limit sleeve (6), and blood taking needle (3) is detachably connected by needle handle (5)
Sliding sleeve (7)；
The side of percussion hammer (10) is provided with teeth (16), and shell (11) is provided with the second waist hole in teeth (16) corresponding position
(15), it is provided perpendicular to the handle (22) of shell (11) at the second waist hole (15), is provided with sliding pin (20) in handle (22),
Sliding pin (20) is being provided with the sphenocephaly (17) with teeth (16) cooperation close to percussion hammer (10) one end, and the other end is provided with the
Three springs (21), the top of handle (22) are provided with fluting (19) along its length, and fluting (19) is equipped with driving sliding pin
(20) mobile slide key (18)；
Percussion hammer (10) is provided with driving lever (8) in the other side opposite with teeth (16), in the shell of driving lever (8) corresponding position
(11) it is provided with the first waist hole (9) on, pulls up driving lever (8) along the first waist hole (9) and is able to drive percussion hammer (10) Xiang Shangyi
It moves and is buckled in teeth (16) in sphenocephaly (17)；
Percussion hammer (10) is symmetrically arranged with boss slider at the radial line both ends perpendicular with teeth (16) and driving lever (8) line,
Sliding slot (23) are equipped on shell (11) inner wall.
2. a kind of blood collecting pen with automatic needle backing device according to claim 1, it is characterised in that: be detachably connected knot
Structure is to be threadedly coupled or snap connection.
3. a kind of blood collecting pen with automatic needle backing device according to claim 1, it is characterised in that: gland (2) uses
Elastic rubber is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820121967.9U CN209059221U (en) | 2018-01-24 | 2018-01-24 | A kind of blood collecting pen with automatic needle backing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820121967.9U CN209059221U (en) | 2018-01-24 | 2018-01-24 | A kind of blood collecting pen with automatic needle backing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209059221U true CN209059221U (en) | 2019-07-05 |
Family
ID=67087966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820121967.9U Active CN209059221U (en) | 2018-01-24 | 2018-01-24 | A kind of blood collecting pen with automatic needle backing device |
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| Country | Link |
|---|---|
| CN (1) | CN209059221U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112190311A (en) * | 2020-10-23 | 2021-01-08 | 山东中医药大学第二附属医院 | Needle inserting device for floating needle |
| CN113440135A (en) * | 2020-03-26 | 2021-09-28 | 天津华鸿科技股份有限公司 | Blood sampling pen |
| CN114129821A (en) * | 2020-12-21 | 2022-03-04 | 艾诺克医美科技(珠海)有限公司 | Multi-needle injection needle head capable of controlling needle outlet length with high precision |
-
2018
- 2018-01-24 CN CN201820121967.9U patent/CN209059221U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113440135A (en) * | 2020-03-26 | 2021-09-28 | 天津华鸿科技股份有限公司 | Blood sampling pen |
| CN113440135B (en) * | 2020-03-26 | 2023-02-24 | 天津华鸿科技股份有限公司 | Blood sampling pen |
| CN112190311A (en) * | 2020-10-23 | 2021-01-08 | 山东中医药大学第二附属医院 | Needle inserting device for floating needle |
| CN112190311B (en) * | 2020-10-23 | 2022-05-06 | 山东中医药大学第二附属医院 | Needle inserting device for floating needle |
| CN114129821A (en) * | 2020-12-21 | 2022-03-04 | 艾诺克医美科技(珠海)有限公司 | Multi-needle injection needle head capable of controlling needle outlet length with high precision |
| CN114129821B (en) * | 2020-12-21 | 2024-03-19 | 艾诺克医美科技(珠海)有限公司 | Multi-needle injection needle head capable of controlling needle-out length with high precision |
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