CN107485400B - Blood taking needle component and blood taking needle device - Google Patents
Blood taking needle component and blood taking needle device Download PDFInfo
- Publication number
- CN107485400B CN107485400B CN201710829920.8A CN201710829920A CN107485400B CN 107485400 B CN107485400 B CN 107485400B CN 201710829920 A CN201710829920 A CN 201710829920A CN 107485400 B CN107485400 B CN 107485400B
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- needle
- sealing plug
- gear
- sliding block
- shell
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- 239000008280 blood Substances 0.000 title claims abstract description 89
- 210000004369 blood Anatomy 0.000 title claims abstract description 89
- 238000007789 sealing Methods 0.000 claims abstract description 56
- 210000003462 vein Anatomy 0.000 claims abstract description 11
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010241 blood sampling Methods 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
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
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
-
- 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
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
-
- 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
- A61B5/150343—Collection vessels for collecting blood samples from the skin surface, e.g. test tubes, cuvettes
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a blood taking needle component and a blood taking needle device, wherein the blood taking needle device comprises a blood taking needle component, a connecting pipe and a human vein puncture needle handle, one end of the connecting pipe is connected with the blood taking needle component, and the other end of the connecting pipe is connected with the human vein puncture needle, the blood taking needle component comprises a shell, a needle, a spring, a sliding block and a sealing plug, the shell is a hollow inner cavity, the needle is positioned in the inner cavity of the shell, the spring is sleeved on the needle, the needle tip part of the needle is inserted in the sealing plug, the spring is fixed on the sealing plug, the sealing plug is fixed in the sliding block, and the sliding block drives the sealing plug to axially slide in the cavity of the shell. The needle can penetrate the sealing plug along with the insertion of the blood collection tube, the sealing plug is inserted into the blood collection tube to form a blood collection channel, the blood collection tube can be separated from the needle point along with the extraction of the blood collection tube after the blood collection is completed, the sealing plug seals the needle point, and therefore the outflow of blood in the blood collection channel is avoided, and the sealing plug can resist multiple punctures of the needle without leakage, so that the tightness of multiple blood collection is ensured.
Description
Technical Field
The present invention relates to the field of medical devices, and more particularly, to a lancet member and a lancet device.
Background
At present, a typical structure of a blood taking needle consists of a human body puncture needle and a needle handle at one end, a cannula needle seat, a cannula needle and a rubber sleeve wrapping the cannula needle at the other end, and a hose is connected in the middle. When blood is collected, the hand-held needle handle operates the puncture needle to puncture blood vessels of a human body, after blood return is observed, the vacuum blood collection tube is inserted from the end of the cannula needle to collect the blood, after the blood collection is finished, the blood collection tube is pulled out, the cannula needle rubber sleeve is pulled out of the blood collection tube, and the rubber sleeve rebounds and wraps the cannula needle to prevent the blood from flowing out of the blood collection needle. Many patients need to collect three tubes, four tubes and even five tubes of blood at one time for analysis and test when blood is taken, the cannula needle rubber sleeve can not rebound after being used for multiple times, and the rubber sleeve can not be sealed after being punctured for multiple times, so that the blood can flow out to cause pollution.
Disclosure of Invention
The invention mainly solves the technical problems of providing the blood taking needle component and the blood taking needle device, wherein the needle point of the blood taking needle device can be completely sealed by the sealing plug after the blood taking tube is pulled out, the blood taking channel is sealed, the pollution of blood splashing can be prevented, the safety and the effectiveness of blood taking are ensured, and the risk of blood flowing out after the blood taking tube for many times is avoided.
In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a blood taking needle part, includes shell, needle, spring, sliding block, sealing plug, the shell is hollow inner chamber, the needle is located in the inner chamber of shell, the spring housing is in on the needle, the needle tip portion of needle inserts in the sealing plug, the spring is fixed in on the sealing plug, the sealing plug is fixed in the sliding block, the sliding block drives the sealing plug is in the cavity axial slip of shell.
In a preferred embodiment of the present invention, one end of the housing is configured for insertion of a blood collection tube.
In a preferred embodiment of the present invention, the lancet assembly further comprises a first gear, a second gear and a button, wherein the first gear, the second gear and the button are located at one side of the cavity of the housing, the first gear, the second gear and the button are sequentially arranged from back to front, and the second gear and the button are adjacently arranged.
In a preferred embodiment of the present invention, the lancet member further includes a catch provided on the slider.
In a preferred embodiment of the invention the tip of the needle is inserted in the sealing plug and is completely sealed by the sealing plug, the tail of the needle being fixed in the housing cavity.
In a preferred embodiment of the invention, one end of the spring is fixed on the sealing plug, the other end of the spring is fixed on the shell, the spring can be compressed when an axial force acts on one side of the sealing plug, and the spring can push the sealing plug to rebound after the external force is removed.
In a preferred embodiment of the present invention, a cavity is disposed in the inner cavity of the housing for the sliding block to axially slide in the cavity.
In a preferred embodiment of the invention, when the sliding block and the sealing plug compression spring are pushed by axial force to slide to the second gear position on the shell, one side of the needle tip part of the needle is exposed, and the exposed length ensures that the needle tip part can penetrate into the blood collection tube.
The blood taking needle device comprises the blood taking needle component, a connecting pipe and a human body vein puncture needle handle, wherein one end of the connecting pipe is connected with the blood taking needle component, and the other end of the connecting pipe is connected with the human body vein puncture needle.
In a preferred embodiment of the present invention, the lancet device further comprises a handle at a junction of the connection tube and the human vein puncture needle.
The beneficial effects of the invention are as follows: according to the blood taking needle component and the blood taking needle device, the needle can penetrate the sealing plug along with the insertion of the blood taking tube, the blood taking tube is inserted into the blood taking tube to form the blood taking channel, the blood taking tube can be separated along with the extraction of the blood taking tube after the blood taking is finished, the needle point is sealed by the sealing plug, so that the outflow of blood in the blood taking channel is avoided, and the sealing plug can resist multiple punctures of the needle without leakage, so that the tightness of multiple blood taking is ensured.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic view showing a structure of a lancet device according to a preferred embodiment of the present invention when not in use;
fig. 2 is a schematic view showing a structure of the lancet device of fig. 1 when blood is collected after the lancet device is inserted into a blood collection tube.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, an embodiment of the present invention includes:
a blood taking needle device comprises a blood taking needle component, a connecting pipe 6, a human vein puncture needle 8 and a handle 7. One end of the connecting pipe 6 is connected with the blood taking needle part, the other end of the connecting pipe is connected with the human vein puncture needle 8, and the handle 7 is positioned at the joint of the connecting pipe 6 and the human vein puncture needle 8. Replaces the traditional assembly mode of the cannula needle, the cannula needle stand and the rubber sleeve.
The blood taking needle component comprises a shell 1, a first gear 101, a second gear 102, a button 103, a needle 2, a sealing plug 3, a sliding block 4, a buckle 401 and a spring 5. The shell 1 is a hollow cavity, and one end of the shell 1 can be used for inserting a blood collection tube. The needle 2 is located in the inner cavity of the shell 1, the spring 5 is sleeved on the needle 2, the tip of the needle 2 is inserted into the sealing plug 3, the spring 5 is fixed on the sealing plug 3, the sealing plug 3 is fixed in the sliding block 4, and the sliding block 4 drives the sealing plug 3 to axially slide in the cavity of the shell 1.
The first gear 101, the second gear 102 and the button 103 are located on one side in the cavity of the housing 1, the first gear 101, the second gear 102 and the button 103 are sequentially arranged from back to front, and the second gear 102 and the button 103 are adjacently arranged. The first gear 101 and the second gear 102 can block the buckle 401 on the sliding block 4, so that the sliding block 4 is locked at the gear. When the catch 401 of the slider 4 is in the first stop 101, the sealing plug 3 is able to seal the needle tip 2. When the catch of the sliding block 4 is at the second stop 102, the needle tip 2 can be ensured to be exposed to a proper length to penetrate the blood collection tube 9. When the button 103 is pressed down when the buckle 401 is in the second gear 102, the buckle 401 can be loosened, and the sliding block 4 drives the sealing plug 3 to axially slide along the needle tube towards the needle tip under the action of the spring 5.
The tip of the needle 2 is inserted into the sealing plug 3 and is completely sealed by the sealing plug 3, and the tail of the needle 2 is fixed in the inner cavity of the shell 1 and forms a blood sampling channel with the human vein puncture needle 8 through the shell 1. One end of the spring 5 is fixed on the sealing plug 3, the other end is fixed on the shell 1, the spring 5 can be compressed when an axial force acts on one side of the sealing plug 3, and the spring 5 can push the sealing plug 3 to rebound after the external force is removed.
A cavity is arranged in the inner cavity of the shell 1 for the sliding block 4 to axially slide in the cavity. When the slider 4 is moved to the point where the sealing plug 3 seals the needle tip, the catch 401 on the slider 4 can rest in the first stop 101 of the housing 1. When the sliding block 4 and the sealing plug 3 are pushed by axial force to slide to the second gear 102 on the shell 1 along the outer wall of the needle tube, one side of the needle tip of the needle 2 can be exposed for a proper length, and the exposed length can ensure that the needle tip can penetrate into the blood collection tube 9.
The buckle 401 is disposed on the sliding block 4, and the buckle 401 is located at the first gear 101 of the housing 1 when the sliding block is not in operation. When the venipuncture of a human body is successful when blood needs to be collected, the blood collection tube 9 is inserted from the open end of the shell 1 to push the sealing plug 3 and the sliding block 4 to axially move along the needle 2 and compress the spring 5, and meanwhile, the buckle 401 is driven to move from the first gear 101 to the second gear 102 of the shell 1. When the buckle 401 moves to the second gear 102, the buckle is blocked and can not move any more, at the moment, the needle 2 penetrates into the blood collection tube 9 to form a blood collection channel to begin to collect blood, the buckle 401 is separated from the second gear 102 by pressing the button 103 on the shell 1 after blood collection is completed, the sliding block 4 pushes the blood collection tube 9 to move towards the needle point of the needle 2 together with the sealing plug 3 under the action of the resilience force of the spring 5 until the buckle 401 moves to the first gear 101 of the shell 1 and is blocked and stops moving, at the moment, the sealing plug 3 just moves to the needle point of the needle 5 to seal the needle point, and the blood collection tube 9 is separated from the needle 2 to complete blood collection in the moving process.
When the blood collection device is used, the human vein puncture needle 8 is held for regular puncture, the shell 1 is held by one hand after blood return, the blood collection tube 9 is held by the other hand and is inserted from the open end of the shell 1, the blood collection tube 9 pushes the sliding block 4 and the sealing plug 3 to move forward along the needle tube compression spring 5, at the moment, the buckle 401 of the sliding block 4 moves from the first gear 101 to the second gear 102 of the shell 1, when the buckle 401 reaches the second gear 102, the needle penetrates into the blood collection tube 9 to form a blood collection channel, after blood collection is completed, the button 103 on the shell 1 is pressed, the buckle 401 is loosened, the sliding block 4 pushes the blood collection tube 9 to move towards the needle tip together under the action of the spring 5, and when the buckle 401 of the sliding block 4 moves to the first gear 101, the needle tip is sealed by the sealing plug 3, and meanwhile, the blood collection tube 9 is pushed out to complete the blood collection process.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (3)
1. The blood taking needle component is characterized by comprising a shell, a needle, a spring, a sliding block, a sealing plug, a first gear, a second gear, a button and a buckle, wherein the shell is a hollow inner cavity, the needle is positioned in the inner cavity of the shell, the spring is sleeved on the needle, the needle point part of the needle is inserted into the sealing plug, the spring is fixed on the sealing plug, the sealing plug is fixed in the sliding block, the sliding block drives the sealing plug to axially slide in the cavity of the shell, the first gear, the second gear and the button are positioned on one side of the cavity of the shell, the first gear, the second gear and the button are sequentially arranged from back to front, the second gear and the button are adjacently arranged, and the buckle is arranged on the sliding block;
the first gear and the second gear can block the buckle on the sliding block, so that the sliding block is locked at the gear; when the buckle of the sliding block is positioned at the first gear, the sealing plug can seal the needle point; when the axial force pushes the sliding block and the sealing plug compression spring to slide to a second gear on the shell, the buckle of the sliding block is positioned at the second gear, one side of the needle tip part of the needle is exposed, and the exposed length ensures that the needle tip part can penetrate into the blood collection tube; when the buckle is in the second gear, the buckle can be loosened by pressing the button, and the sliding block drives the sealing plug to axially slide along the needle tube towards the needle point under the action of the spring;
the needle tip of the needle is inserted into the sealing plug and is completely sealed by the sealing plug, the needle tail of the needle is fixed in the inner cavity of the shell, one end of the spring is fixed on the sealing plug, the other end of the spring is fixed on the shell, the spring can be compressed when one side of the sealing plug has axial force, the spring can push the sealing plug to rebound after the external force is removed, and a cavity for the sliding block to axially slide in the cavity is arranged in the inner cavity of the shell.
2. A lancet device comprising the lancet member of claim 1, a connecting tube and a human venipuncture needle handle, wherein one end of the connecting tube is connected to the lancet member and the other end is connected to the human venipuncture needle.
3. The lancet assembly of claim 2, wherein the lancet device further comprises a handle located at the junction of the connecting tube and the human vein puncture needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710829920.8A CN107485400B (en) | 2017-09-15 | 2017-09-15 | Blood taking needle component and blood taking needle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710829920.8A CN107485400B (en) | 2017-09-15 | 2017-09-15 | Blood taking needle component and blood taking needle device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107485400A CN107485400A (en) | 2017-12-19 |
| CN107485400B true CN107485400B (en) | 2024-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710829920.8A Active CN107485400B (en) | 2017-09-15 | 2017-09-15 | Blood taking needle component and blood taking needle device |
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| Country | Link |
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| CN (1) | CN107485400B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109549653A (en) * | 2019-01-11 | 2019-04-02 | 刘贞宽 | A kind of anti-needle thorn vein blood taking needle |
| CN109893142B (en) * | 2019-04-16 | 2023-11-17 | 上海金塔医用器材有限公司 | Flexible blood sampling device and rigid blood sampling device |
| CN112999465B (en) * | 2020-03-16 | 2023-05-16 | 湛江健力源医疗用品有限公司 | Closed needle structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004113519A (en) * | 2002-09-26 | 2004-04-15 | Sefa Technology Kk | Vacuum blood collecting tube |
| JP2004141393A (en) * | 2002-10-24 | 2004-05-20 | Nipro Corp | Blood collecting set |
| JP2005245704A (en) * | 2004-03-03 | 2005-09-15 | Sekisui Chem Co Ltd | Adapter for blood sampling needle, holder for vacuum blood sampling and blood sampling needle for vacuum blood sampling |
| CN2936144Y (en) * | 2006-08-09 | 2007-08-22 | 刘余厚 | Blood-taking holder |
| CN104470435A (en) * | 2012-10-26 | 2015-03-25 | 张建铭 | Automatic needle withdrawing integral vacuum blood sampling apparatus with needle tip protective sleeve |
| CN208709901U (en) * | 2017-09-15 | 2019-04-09 | 顾虹 | A kind of blood sampling needle part and blood lancet device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6814707B2 (en) * | 2001-06-20 | 2004-11-09 | Margie M. Collins | Blood collection safety device |
-
2017
- 2017-09-15 CN CN201710829920.8A patent/CN107485400B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004113519A (en) * | 2002-09-26 | 2004-04-15 | Sefa Technology Kk | Vacuum blood collecting tube |
| JP2004141393A (en) * | 2002-10-24 | 2004-05-20 | Nipro Corp | Blood collecting set |
| JP2005245704A (en) * | 2004-03-03 | 2005-09-15 | Sekisui Chem Co Ltd | Adapter for blood sampling needle, holder for vacuum blood sampling and blood sampling needle for vacuum blood sampling |
| CN2936144Y (en) * | 2006-08-09 | 2007-08-22 | 刘余厚 | Blood-taking holder |
| CN104470435A (en) * | 2012-10-26 | 2015-03-25 | 张建铭 | Automatic needle withdrawing integral vacuum blood sampling apparatus with needle tip protective sleeve |
| CN208709901U (en) * | 2017-09-15 | 2019-04-09 | 顾虹 | A kind of blood sampling needle part and blood lancet device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107485400A (en) | 2017-12-19 |
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