CN212415738U - Blood taking needle sealing joint assembly - Google Patents
Blood taking needle sealing joint assembly Download PDFInfo
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- CN212415738U CN212415738U CN201921969148.0U CN201921969148U CN212415738U CN 212415738 U CN212415738 U CN 212415738U CN 201921969148 U CN201921969148 U CN 201921969148U CN 212415738 U CN212415738 U CN 212415738U
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- needle
- inner cylinder
- chamfer
- outlet hole
- barrel
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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
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
-
- 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
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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
- A61B5/150007—Details
- A61B5/150885—Preventing re-use
- A61B5/150893—Preventing re-use by indicating if used, tampered with, unsterile or defective
-
- 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
- A61B5/150885—Preventing re-use
- A61B5/150916—Preventing re-use by blocking components, e.g. piston, driving device or fluid passageway
-
- 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
- A61B5/15103—Piercing procedure
- A61B5/15107—Piercing being assisted by a triggering mechanism
- A61B5/15113—Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
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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
- A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
- A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
-
- 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
- A61B5/1513—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides comprising linear sliding guides
-
- 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
- A61B5/15142—Devices intended for single use, i.e. disposable
- A61B5/15144—Devices intended for single use, i.e. disposable comprising driving means, e.g. a spring, for retracting the piercing unit into the housing
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- 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 utility model provides a blood taking needle sealing joint component, which comprises an outer barrel, an inner barrel and a top cover, wherein the inner barrel is vertically arranged in the outer barrel, the top of the inner barrel is provided with a needle outlet hole, the inner side of the top cover is provided with a vertically downward protective cap used for passing through the needle outlet hole to protect the needle point of a blood taking needle; the top cover is divided into a buckling end and a cap end, wherein the lower end of the cap end is matched with the upper end of the outer barrel in shape and size, and a notch is formed in the side face of the cap end and is used as a force application part when the top cover is pulled out of the upper end of the outer barrel; the buckling end is a flat structural member, the surface of the buckling end is provided with a damping strip, the circumferential size of the flat structural member is gradually increased from top to bottom, a first chamfer is arranged at one end close to the cap end, and a second chamfer matched with the first chamfer is formed at the edge of a pin outlet hole formed in the top of the inner cylinder and used for playing a role in guiding when the inner cylinder is buckled reversely; the size of the first chamfer angle position is matched with a needle outlet hole formed in the top of the inner cylinder, so that the first chamfer angle is not easy to pull out after being buckled and wedged reversely.
Description
Technical Field
The utility model relates to a blood taking needle especially relates to a blood taking needle seals joint Assembly.
Background
The american disease control center, which was approved in 1996 to be implemented in whole america as proposed by 1995, introduced in 1999 in china and published in hospital infection management code (trial) issued by the ministry of health in 2000, considers that all patients have infectious blood, body fluid, excrement and secretion from the viewpoint of standard prevention, and whether obvious blood stain contamination exists or non-integral skin mucosa is contacted, isolation is required, and venous blood collection is mainly used for collection and preservation of blood specimens, so as to avoid unnecessary risks and infection.
The main principle of blood collection is that a certain amount of negative pressure is preset in the production process of a vacuum blood collection tube, and after a blood collection needle punctures into a blood vessel, blood automatically flows into the blood collection tube due to the action of the negative pressure in the blood collection tube, so that blood sample collection is completed. In the blood sampling device in the prior art, after blood sampling is finished, the needle tip is exposed outside, so that unnecessary injury is easily caused to medical staff, whether the needle tube is used or not can not be obviously distinguished, and the disposable needle tube is easily reused, so that large infectious diseases are caused.
Disclosure of Invention
The utility model provides a blood taking needle seals joint Assembly. The top cap of upper end is convenient for extract during the blood sampling, and the reverse lock of top cap is on the inner tube after the blood sampling, marks this blood sampling needle and has used, and is not only sanitary, avoids unnecessary harm, convenient and safe moreover.
For overcoming the defects of the prior art, the utility model provides a following technical scheme:
a blood taking needle sealing joint component comprises an outer barrel, an inner barrel and a top cover, wherein the inner barrel is vertically arranged in the outer barrel, a needle outlet hole is formed in the top of the inner barrel, and a vertically downward protective cap is arranged on the inner side of the top cover and used for penetrating through the needle outlet hole to protect a needle point of a blood taking needle; the top cover is divided into a buckling end and a cap end, wherein the lower end of the cap end is matched with the upper end of the outer barrel in shape and size, and a notch is formed in the side face of the cap end and is used as a force application part when the top cover is pulled out of the upper end of the outer barrel; the buckling end is a flat structural member, the surface of the buckling end is provided with a damping strip, the circumferential size of the flat structural member is gradually increased from top to bottom, a first chamfer is arranged at one end close to the cap end, and a second chamfer matched with the first chamfer is formed at the edge of a pin outlet hole formed in the top of the inner cylinder and used for playing a role in guiding when the inner cylinder is buckled reversely; the size of the first chamfer angle position is matched with a needle outlet hole formed in the top of the inner cylinder, so that the first chamfer angle is not easy to pull out after being buckled and wedged reversely.
In the blood taking needle closed joint component, the side surface of the cap end is provided with a notch which is used as a force application part when the top cover is pulled out from the upper end of the outer cylinder, so that medical staff can conveniently pull out the top cover when the blood taking needle is used; the buckling end is a flat structural part, the surface of the buckling end is provided with the damping strips, after the blood taking needle is used up, the buckling end is directly and reversely buckled on the inner barrel of the blood taking needle, the arrangement of the damping strips enables the buckling end not to be easily pulled out, the blood taking needle is marked to be used, secondary utilization cannot be caused, and medical pollution and infection are avoided.
Optionally, the first chamfers are symmetrically disposed on both sides of the flat structural member. The symmetrical arrangement, structure elegant appearance reduces by blood sampling person's psychological pressure.
Optionally, the inner edge of the needle outlet hole formed in the top of the inner cylinder is bent at a right angle. The right-angle turning is convenient for buckling the buckling end and is not easy to pull out.
Optionally, the button end and the cap end are one piece.
Optionally, the flat structural member is made of rubber. The rubber material is easy to buckle.
Optionally, the lower end of the cap end is in a snap fit with the upper end of the outer barrel.
Optionally, the length of the damping strips on the surface of the flat structure is gradually increased from top to bottom.
Optionally, an inner cylinder guide groove and a needle base guide groove are axially formed in the inner wall of the outer cylinder, and a first transition inclined plane is arranged between the inner cylinder guide groove and the needle base guide groove; the outer wall of the inner cylinder is provided with a guide bulge corresponding to the guide groove of the inner cylinder, and the inner cylinder is also axially provided with a guide through groove corresponding to the guide groove of the needle seat; the needle seat is vertically arranged in the outer barrel and located below the inner barrel, a needle point is arranged at the top of the needle seat, a blocking wing corresponding to the guide through groove and the needle seat guide groove is vertically arranged on the needle seat, and a needle seat inclined plane is arranged at the top of the blocking wing.
In summary, compared with the prior art, the application has the following beneficial effects:
in the blood taking needle closed joint component, the side surface of the cap end is provided with a notch which is used as a force application part when the top cover is pulled out from the upper end of the outer cylinder, so that medical staff can conveniently pull out the top cover when the blood taking needle is used; the buckling end is a flat structural part, the surface of the buckling end is provided with the damping strips, after the blood taking needle is used up, the buckling end is directly and reversely buckled on the inner barrel of the blood taking needle, the arrangement of the damping strips enables the buckling end not to be easily pulled out, the blood taking needle is marked to be used, secondary utilization cannot be caused, and medical pollution and infection are avoided.
Furthermore, the two sides of the flat structural part are symmetrically arranged, the structure is attractive and elegant, and the psychological pressure of a blood-sampled person is reduced.
Further, the inward flange of the play pinhole that the inner tube top was seted up uses the right angle turn, and flat structure is the rubber material, and the equal easy lock of rubber material and right angle turn is on the inner tube to difficult extracting marks this disposable blood taking needle and has used up, can not the secondary use.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of a lancet cap structure;
FIG. 2 is a cross-sectional view of the lancet;
FIG. 3 is a schematic view of the internal structure of the blood collection needle;
FIG. 4 is a view of the structure of the needle mount;
FIG. 5 is a structural view of the inner barrel;
fig. 6 is a schematic view of a half-section structure of the outer cylinder.
Wherein the reference numerals have the meanings given below:
1-outer barrel, 2-inner barrel, 3-needle seat, 4-base, 5-ejection spring, 6-retraction spring, 7-top cover, 8-protective cap, 9-cap end, 10-buckle end, 11-first chamfer, 12-inner barrel guide groove, 13-needle seat guide groove, 14-guide projection, 15-guide through groove, 16-stop wing, 17-first transition slope, 18-second transition slope, 19-needle seat slope, 20-needle point, 21-needle hole, 22-needle outlet hole, 23-notch and 24-damping strip.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a blood taking needle sealing joint component which comprises an outer barrel 1, an inner barrel 2 and a top cover 7, wherein the inner barrel 2 is vertically arranged in the outer barrel 1, a needle outlet hole 22 is formed in the top of the inner barrel 2, and a vertically downward protective cap 8 is arranged on the inner side of the top cover 7 and used for penetrating through the needle outlet hole 22 to protect a needle tip of a blood taking needle; the top cover 7 is divided into a buckle end 10 and a cap end 9, wherein the lower end of the cap end 9 is matched with the shape and the size of the upper end of the outer cylinder 1, and a notch 23 is arranged on the side surface of the cap end 9 and is used as a force application part when the top cover 7 is pulled out from the upper end of the outer cylinder 1; the buckling end 10 is a flat structural member, the surface of the buckling end is provided with a damping strip 24, the circumferential size of the flat structural member is gradually increased from top to bottom, a first chamfer 11 is arranged at one end close to the cap end 9, and a second chamfer matched with the first chamfer 11 is formed at the edge of a needle outlet 22 formed at the top of the inner barrel 2 and used for playing a role in guiding when reversely buckled; the size of the position of the first chamfer 11 is matched with a pin outlet hole 22 formed in the top of the inner cylinder 2, so that the first chamfer is not easy to pull out after being buckled and wedged reversely; the first chamfers 11 are symmetrically arranged on two sides of the flat structural member; the inner edge of the needle outlet hole 22 formed at the top of the inner cylinder 2 is bent at a right angle; the buckle end 10 and the cap end 9 are an integral piece; the flat structural member is made of rubber; the lower end of the cap end 9 is in a matched relationship with the upper end of the outer cylinder 1 in a buckling manner; the length of the damping strips 24 on the surface of the flat structure increases from top to bottom.
An inner cylinder guide groove 12 and a needle base guide groove 13 are axially formed in the inner wall of the outer cylinder 1, and a first transition inclined plane 17 is arranged between the lower ends of the inner cylinder guide groove 12 and the needle base guide groove 13; the outer wall of the inner cylinder 2 is provided with a guide bulge 14 corresponding to the inner cylinder guide groove 12, the inner cylinder 2 is also axially provided with a guide through groove 15, and the guide through groove 15 corresponds to the needle seat guide groove 13; the needle base 3 is vertically arranged in the outer cylinder 1 and located below the inner cylinder 2, the needle tip 20 is arranged at the top of the needle base 3, the needle base 3 is vertically provided with a blocking wing 16 corresponding to the guiding through groove 15 and the needle base guiding groove 13, the top of the blocking wing 16 is provided with a needle base inclined plane 19, and a second transition inclined plane 18 is arranged between the guiding through groove 15 and the bottom end of the inner cylinder 2.
The lower part of the needle seat 3 is connected with one end of an ejection spring 5, the other end of the ejection spring 5 is fixed at the bottom of the outer cylinder 1 through a base 4, a withdrawing spring 6 is vertically arranged in the inner cylinder 2, and the diameter of the withdrawing spring 6 is smaller than the width of the blocking wing 16.
Before use, the upper part of the inner cylinder 2 is exposed out of the outer cylinder 1, and the blocking wing 16 of the needle base 3 is positioned in the inner cylinder guide groove 12 of the outer cylinder 1 and is propped against the first transition inclined surface 17 at the bottom of the inner cylinder 2; when the blood sampling needle is used, the notch 23 arranged on the side surface of the cap end 9 is pinched by a hand to serve as a force application part when the top cover 7 is pulled out from the upper end of the outer cylinder 1, the top cover 7 is pulled out, the top of the inner cylinder 2 is pressed forcibly, the blocking wing 16 moves along the pressing direction and compresses the ejection spring 5 below the needle seat 3, meanwhile, the blocking wing 16 slides into the guide through groove 15 and the needle seat guide groove 13 along the first transition inclined plane 17, the needle seat 3 bounces upwards, and the needle point is exposed to take blood.
The top cover 7 is positioned above the outer cylinder 1, the top cover 7 is provided with a protective cap 8, and the protective cap 8 downwards penetrates through the needle hole 21 to be connected with the needle point 20. When the disposable blood taking needle is used, the needle tip 20 is inserted into the protective cap 8, the top cover 7 is pulled down to separate the needle tip 20 from the protective cap 8, after the disposable blood taking needle is used, the blocking wing 16 of the needle base 3 slides into the guiding through groove 15, the needle tip 20 and the protective cap 8 cannot restore to an initial connection state, in addition, after the disposable blood taking needle is used, the top cover 7 is reversely buckled into the needle outlet hole 22 of the inner barrel 2, namely the buckling end 10 is buckled into the inner barrel 2, a first chamfer between the buckling end 10 and the cap end 9 is just clamped into the needle outlet hole 22 of the inner barrel 2, and the buckling end 10 is provided with the damping strip 24 to reversely buckle into the inner barrel, so that the disposable blood taking needle is obvious in mark and difficult to pull.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (8)
1. A blood taking needle sealing joint component comprises an outer barrel, an inner barrel and a top cover, wherein the inner barrel is vertically arranged in the outer barrel, a needle outlet hole is formed in the top of the inner barrel, and a vertically downward protective cap is arranged on the inner side of the top cover and used for penetrating through the needle outlet hole to protect a needle point of a blood taking needle; the method is characterized in that: the top cover is divided into a buckling end and a cap end, wherein the lower end of the cap end is matched with the upper end of the outer barrel in shape and size, and a notch is formed in the side face of the cap end and is used as a force application part when the top cover is pulled out of the upper end of the outer barrel; the buckling end is a flat structural member, the surface of the buckling end is provided with a damping strip, the circumferential size of the flat structural member is gradually increased from top to bottom, a first chamfer is arranged at one end close to the cap end, and a second chamfer matched with the first chamfer is formed at the edge of a pin outlet hole formed in the top of the inner cylinder and used for playing a role in guiding when the inner cylinder is buckled reversely; the size of the first chamfer angle position is matched with a needle outlet hole formed in the top of the inner cylinder, so that the first chamfer angle is not easy to pull out after being buckled and wedged reversely.
2. The lancet closure adapter assembly of claim 1, wherein: the first chamfers are symmetrically arranged on two sides of the flat structural member.
3. The lancet closure adapter assembly of claim 1, wherein: the inner edge of the needle outlet hole formed in the top of the inner cylinder is bent at a right angle.
4. The lancet closure adapter assembly of claim 1, wherein: the buckle end and the cap end are an integral piece.
5. The lancet closure adapter assembly of claim 1, wherein: the flat structural member is made of rubber.
6. The lancet closure adapter assembly of claim 1, wherein: the lower end of the cap end is matched with the upper end of the outer barrel through a step buckle.
7. The lancet closure adapter assembly of claim 1, wherein: the length of the damping strips on the surface of the flat structural member is gradually increased from top to bottom.
8. The lancet closure adapter assembly of claim 1, wherein: an inner cylinder guide groove and a needle base guide groove are axially formed in the inner wall of the outer cylinder, and a first transition inclined plane is arranged between the inner cylinder guide groove and the needle base guide groove; the outer wall of the inner cylinder is provided with a guide bulge corresponding to the guide groove of the inner cylinder, and the inner cylinder is also axially provided with a guide through groove corresponding to the guide groove of the needle seat; the needle seat is vertically arranged in the outer barrel and located below the inner barrel, a needle point is arranged at the top of the needle seat, a blocking wing corresponding to the guide through groove and the needle seat guide groove is vertically arranged on the needle seat, and a needle seat inclined plane is arranged at the top of the blocking wing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921969148.0U CN212415738U (en) | 2019-11-14 | 2019-11-14 | Blood taking needle sealing joint assembly |
| DE202020101368.8U DE202020101368U1 (en) | 2019-11-14 | 2020-03-12 | A blood lancet device with a closure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921969148.0U CN212415738U (en) | 2019-11-14 | 2019-11-14 | Blood taking needle sealing joint assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212415738U true CN212415738U (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921969148.0U Active CN212415738U (en) | 2019-11-14 | 2019-11-14 | Blood taking needle sealing joint assembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN212415738U (en) |
| DE (1) | DE202020101368U1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114983407A (en) * | 2022-05-27 | 2022-09-02 | 吉林大学 | Expansion type blood sampling device with blocking function and used for preventing blood fainting in oncology hematology department |
-
2019
- 2019-11-14 CN CN201921969148.0U patent/CN212415738U/en active Active
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2020
- 2020-03-12 DE DE202020101368.8U patent/DE202020101368U1/en active Active
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| Publication number | Publication date |
|---|---|
| DE202020101368U1 (en) | 2020-03-18 |
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