CN111214243A - Blood taking needle and blood taking needle assembly - Google Patents
Blood taking needle and blood taking needle assembly Download PDFInfo
- Publication number
- CN111214243A CN111214243A CN201910874400.8A CN201910874400A CN111214243A CN 111214243 A CN111214243 A CN 111214243A CN 201910874400 A CN201910874400 A CN 201910874400A CN 111214243 A CN111214243 A CN 111214243A
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- needle
- boss
- lancet
- diameter
- matching
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- 239000008280 blood Substances 0.000 title claims abstract description 41
- 210000004369 blood Anatomy 0.000 title claims abstract description 41
- 230000013011 mating Effects 0.000 claims description 9
- 238000010241 blood sampling Methods 0.000 claims description 7
- 230000004308 accommodation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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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
-
- 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
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150572—Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
-
- 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
- A61B5/15146—Devices loaded with multiple lancets simultaneously, e.g. for serial firing without reloading, for example by use of stocking means.
- A61B5/15148—Constructional features of stocking means, e.g. strip, roll, disc, cartridge, belt or tube
- A61B5/15149—Arrangement of piercing elements relative to each other
- A61B5/15155—Piercing elements which are specially shaped or are provided with fittings or attachments to facilitate nesting, stacking or joining together end-to-end or side-by-side
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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)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The present invention relates to a blood lancet, comprising: a needle handle having a first end and a second end; the needle body, a part of the needle body is located in the first end of the needle handle, and the needle point of the needle body is located outside the first end of the needle handle; needle cap, needle cap have first end and second end, and the second end of needle cap is provided with first needle covering portion, and first needle covering portion is removable covers the needle point, wherein: the needle cap is provided with a boss at the first side of the first end; the central axis of the boss is vertical to the axis of the needle body arranged in the needle handle; the needle cap is provided with a recess at a second side of the first end opposite the first side, and the boss and the recess are arranged such that the boss is adapted to fit into the recess. The boss is adapted to cover the needle tip after the needle cap is removed from the needle tip. The invention also relates to a lancet assembly comprising at least two of the above lancets, wherein: in two adjacent lancets, the boss of one lancet is fittingly connected into the recess of the other lancet.
Description
Technical Field
Embodiments of the present invention relate to the field of medical devices, and in particular, to a lancet used in cooperation with a lancet pen and a lancet assembly.
Background
After the blood sampling of the existing blood taking needle is finished, the existing blood taking needle needs to be withdrawn from the blood taking pen firstly and then the needle tip is pressed on the needle cap, so that the needle tip is prevented from accidentally injuring others, the needle tip in the process has longer duration under the condition of no protection, and potential safety hazards exist; and the blood taking needle is usually large in size, and can be assembled and disassembled after the pen cap of the blood taking pen is removed. In order to meet the requirements of mounting and removing the blood taking needle, the existing structure is designed into a mode of firstly exposing the needle tip of the blood taking needle and then covering the needle tip by a needle cap, so that great potential safety hazards exist.
In addition, several blood collection needles are usually packaged in one bag or one box, and are prone to being scattered carelessly.
Disclosure of Invention
The present invention has been made to mitigate or solve at least one of the above-mentioned problems.
According to an aspect of an embodiment of the present invention, there is provided a lancet including:
a needle handle having a first end and a second end;
the needle body, a part of the needle body is located in the first end of the needle handle, and the needle point of the needle body is located outside the first end of the needle handle;
a needle cap having a first end and a second end, the second end of the needle cap being provided with a first needle covering portion that removably covers the needle tip,
wherein:
the needle cap is provided with a boss at the first side of the first end;
the central axis of the boss is vertical to the axis of the needle body arranged in the needle handle;
the needle cap is provided with a recess at a second side of the first end opposite the first side, and the boss and the recess are arranged such that the boss is adapted to fit into the recess.
Optionally, the boss is adapted to cover the needle tip after the needle cap is removed from the needle tip.
Optionally, the recessed portions are arranged on opposite sides of the boss, and the central axes of the recessed portions coincide with each other.
Optionally, the needle cap is provided with a large diameter portion substantially coaxially arranged with the boss, the diameter of the large diameter portion is larger than that of the boss, and the recess portion is arranged in the large diameter portion.
Optionally, the boss has a predetermined height and the needle tip is adapted to be inserted into the boss along a central axis of the boss.
Optionally, the predetermined height of the boss is in the range of 2.5mm-3.5 mm.
Optionally, the boss is a cylindrical boss or a conical boss.
Optionally, the second end of the needle cap is provided with a matching portion, the matching portion has a matching diameter suitable for matching with a needle outlet of a blood sampling pen, the second end of the needle cap is provided with the first needle covering portion on one side of the matching portion close to the needle point, and the needle point is inserted into the first needle covering portion; and the maximum diameter of the boss is not greater than the fitting diameter of the fitting portion.
Optionally, the second end of the needle cap is provided with a flange portion on a side of the fitting portion away from the needle tip, and a diameter of the flange portion is larger than the fitting diameter.
Optionally, the end of the boss is provided with a blind hole.
Optionally, the boss and the recess are adapted to be connected by interference fit.
Optionally, the boss and the recess are adapted to snap-fit to each other.
Optionally, the end of the boss is provided with a receiving hole arranged along the central axis of the boss, and a hole wall is formed around the receiving hole; the concave part is provided with a matching inner ring, the matching inner ring is arranged along the central axis of the concave part, and a matching space is formed between the radial outer wall of the matching inner ring and the radial inner wall of the concave part; the bore wall of the boss is adapted to enter the mating space.
Optionally, the recess has a large-diameter recess and a small-diameter recess, and the large-diameter recess serves as a guide structure for guiding the hole wall into a fitting space between a radially inner wall of the small-diameter recess and a radially outer wall of the fitting inner ring.
According to another aspect of an embodiment of the present invention, there is provided a lancet assembly including:
at least two of the above blood lancets, wherein: in two adjacent lancets, the boss of one lancet is fittingly connected into the recess of the other lancet.
Optionally, in each blood taking needle, the second end of the needle cap is provided with a flange part on the side of the matching part far away from the needle tip, and the diameter of the flange part is larger than the matching diameter; the concave parts are arranged on the opposite sides of the boss, and the central axes of the concave parts and the central axes of the boss coincide with each other; and the axes of the needle handles of two adjacent lancets are generally parallel to each other and the flange portions are spaced apart from each other or abut each other.
Drawings
FIG. 1 is a front view of a lancet according to an exemplary embodiment of the present invention;
3 figure 3 2 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 a 3- 3 a 3 of 3 the 3 lancet 3 of 3 figure 3 1 3; 3
FIG. 3 is a perspective view of the lancet of FIG. 1;
FIG. 4 is a schematic view of the lancet of FIG. 1 with the needle cap removed;
FIG. 5 is a schematic view of the lancet of FIG. 1 with the second needle-covering portion of the needle cap covering the needle tip after the needle cap is removed;
FIG. 6 is a schematic view of a lancet assembly according to an exemplary embodiment of the present invention, wherein a plurality of lancets are connected together side by side;
FIG. 7 is a schematic view of a lancet according to an exemplary embodiment of the present invention;
FIG. 8 is a cross-sectional view of the lancet of FIG. 7;
fig. 9 is a schematic view showing a structure in which a second needle covering portion of the needle cap is provided to the needle tip after the needle cap of the lancet of fig. 7 is removed.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as limiting the invention.
A lancet according to an exemplary embodiment of the present invention will be described in detail with reference to fig. 1 to 5.
As shown in fig. 1 to 5, the lancet comprises: a needle body; a needle handle 20, to which the needle body is fixed and the needle tip 30 is exposed from a first end (e.g., the upper end in fig. 4) of the needle handle, a second end of the needle handle is adapted to be inserted into the needle seat groove of the needle seat, and the second end of the needle handle has a clamping groove 21 adapted to be clamped with a lancet; and a needle cap 10 which is removable to expose the needle tip 30.
As shown in fig. 1-3, the needle cap 10 is provided with a boss 11 at one side. If the boss is needed to cover the needle tip 30, a blind hole 13 with the depth of 1mm is formed at one end of the boss 11, and when the blind hole is used for wrapping the needle tip of the blood taking needle, a part of the needle tip can be suspended, so that the resistance when the needle tip is inserted into the needle cap is reduced. In the illustrated example, the boss 11 is provided with a blind hole 13, and the boss may not be provided with a blind hole as long as the needle tip can be inserted to cover the needle tip.
As shown in fig. 2, the second end (lower end in fig. 2) of the needle cap 10 is provided with an engaging part 15 having an engaging diameter adapted to be engaged with a needle outlet of a lancet (on which a lancet is mounted), and the second end of the needle cap 10 is provided with a first needle covering part (lower end of the needle cap in fig. 2) into which the needle tip 30 is inserted at a side of the engaging part 15 close to the needle tip. The matching part 15 is suitable for being equal in diameter with a needle outlet of a blood taking pen and is used for preventing or reducing shaking of the blood taking needle when the blood taking needle is inserted into the needle seat groove; the diameter of the flange part 14 is larger than that of the needle outlet, and the longitudinal position of the flange part just allows the blood taking needle to be placed in the needle seat groove, so that the mounting of the blood taking needle is limited and prompted.
If the boss 11 is required to cover the needle tip 30 after the blood sampling operation, the maximum diameter of the boss 11 is not larger than the fitting diameter of the fitting portion.
As shown in fig. 2, the second end of the needle cap 11 is provided with a flange portion 14 on a side of the engagement portion 15 away from the needle tip, and the diameter of the flange portion 14 is larger than the engagement diameter.
As shown in fig. 1-3, the central axis of the boss 11 is perpendicular to the axis of the needle body disposed in the needle handle; the needle cap 11 is provided with a recess 12 (see fig. 3) at a second side of the first end (upper end in fig. 2) opposite to the first side, and the boss 11 and the recess 12 are arranged such that the boss 11 is adapted to fit into the recess 12, see fig. 6.
In a particular embodiment, for the cooperation between the boss 11 and the recess 12, the boss is a cylindrical boss or a conical boss. Other protruding structures that can mate with the recess 12 are also possible.
After the blood collection is completed, the boss 11 can be pushed in through the needle outlet, and as shown in fig. 5, the needle tip 30 of the blood collection needle is covered by the boss 11. The height of the boss 11 is in the range of 2.5mm-3.5mm, and may be, for example, 2.5mm, 3mm and 3.5 mm.
In the lancet shown in fig. 1 to 5, a projection 11 is provided, and the projection 11 has a predetermined height so as to be inserted into a recess or a needle outlet to cover a needle tip.
As shown in fig. 2-3, the needle cap 10 is provided with a large diameter portion 16 arranged substantially coaxially with the boss 11, the diameter of the large diameter portion 16 is larger than that of the boss 11, and the recess 12 is provided in the large diameter portion 16.
In the example of fig. 1-5, the axis of the boss 11 is perpendicular to the axis of the needle tip.
In the exemplary embodiment of the present invention, the structure of the needle cap of the lancet which is fitted with the recess 12 is described by taking the boss 11 as an example, but the present invention is not limited thereto.
Referring again to fig. 7-9, additional embodiments of the mating of the boss and recess of the needle cap are shown. In a further embodiment, the boss of the needle cap may also be telescoped over a corresponding telescoped mating portion of the lancet after the lancing operation.
As shown in fig. 7-9, the needle cap 10 is provided with a socket 11, the wall of the socket 11 defining the accommodation space S1 being elastic and provided with circumferentially distributed circumferential recesses 17 in the accommodation space; the first end of the needle shaft is provided with a socket fitting part 22, said socket fitting part 22 comprising circumferentially distributed radial protrusions 22a, said radial protrusions 22a being adapted to fit into said circumferential recess 17, as shown in fig. 9.
The lancet shown in figures 7-9 may also be provided to a lancet pen.
It should be noted that the connection between the socket part and the socket mating part is not limited to the examples shown in fig. 7 to 9, and the socket mating part is suitable for mating connection with the socket part so that the needle tip is located in the accommodating space. In the present invention, the sleeving means that one portion is enclosed by the other portion in a direction parallel to the axis of the lancet, and the other portion for the enclosing function may be an annular wall or a plurality of extension arms spaced in the circumferential direction and extending in the axial direction. For example, although not shown, the wall of the socket portion defining the accommodation space has elasticity, and an end of the wall has a radially inward protrusion; the sleeve joint matching part is provided with a radial bulge, and the radial bulge is suitable for being in buckle connection with the protruding part. All of the above are within the scope of the present invention.
The following exemplary details the mating connection between the boss 11 and the recess 12.
As can be appreciated by those skilled in the art, the boss and the recess are adapted to be in interference fit connection with each other. As shown in fig. 6, the connection between the boss and the recess may be an interference fit.
As can be appreciated by those skilled in the art, although not shown, the boss and the recess are adapted to snap-fit to each other.
One particular connection between the boss and the recess is shown in fig. 7-9.
As shown in fig. 7 to 9, the end of the boss 11 is provided with a receiving hole S1 provided along the center axis of the boss, and a hole wall 11a is formed around the receiving hole S1;
the recessed portion 12 is provided with a matching inner ring 12a, the matching inner ring 12a is arranged along the central axis of the recessed portion, and a matching space S2 is formed between the radial outer wall of the matching inner ring and the radial inner wall of the recessed portion;
the hole wall 11a of the boss 11 is adapted to enter the fitting space S2.
As shown in fig. 7 to 9, the recess 12 has a large-diameter recess (outside the recess 12 in fig. 8) and a small-diameter recess (inside the recess 12 in fig. 8) as a guide structure for guiding the bore wall into a fitting space between a radially inner wall of the small-diameter recess and a radially outer wall of the fitting inner ring.
Although not shown, the lancets shown in figures 7-9 can also be formed in a side-by-side fashion as shown in figure 6.
According to the invention, the blood taking needles are placed side by side based on the matching of the bosses and the concave parts, so that the problem that the blood taking needles are easy to scatter carelessly when packaged can be solved.
Based on the above, the invention provides the following technical scheme:
1. a blood collection needle comprising:
a needle handle having a first end and a second end;
the needle body, a part of the needle body is located in the first end of the needle handle, and the needle point of the needle body is located outside the first end of the needle handle;
a needle cap having a first end and a second end, the second end of the needle cap being provided with a first needle covering portion that removably covers the needle tip,
wherein:
the needle cap is provided with a boss at the first side of the first end;
the central axis of the boss is vertical to the axis of the needle body arranged in the needle handle;
the needle cap is provided with a recess at a second side of the first end opposite the first side, and the boss and the recess are arranged such that the boss is adapted to fit into the recess.
2. The lancet according to 1, wherein:
the boss is adapted to cover the needle tip after the needle cap is removed from the needle tip.
3. The lancet according to 1 or 2, wherein:
the recessed portions are disposed on opposite sides of the boss, and central axes of the recessed portions and the central axes of the boss coincide with each other.
4. The lancet of claim 3, wherein:
the needle cap is provided with a large-diameter portion which is substantially coaxially arranged with the boss, the diameter of the large-diameter portion is larger than that of the boss, and the recessed portion is arranged in the large-diameter portion.
5. The lancet according to 2, wherein:
the boss has a predetermined height and the needle tip is adapted to be inserted into the boss generally along a central axis of the boss.
6. The lancet of claim 5, wherein:
the predetermined height of the boss is in the range of 2.5mm-3.5 mm.
7. The lancet according to 1 or 2, wherein:
the boss is a cylindrical boss or a conical boss.
8. The lancet according to 2, wherein:
the second end of the needle cap is provided with a matching part, the matching part has a matching diameter suitable for being matched with a needle outlet of a blood sampling pen, the second end of the needle cap is provided with a first needle covering part at one side of the matching part close to the needle point, and the needle point is inserted into the first needle covering part; and is
The maximum diameter of the boss is not greater than the fitting diameter of the fitting portion.
9. The lancet of claim 8, wherein:
the second end of the needle cap is provided with a flange part on one side of the matching part far away from the needle point, and the diameter of the flange part is larger than the matching diameter.
10. The lancet according to 2, wherein:
the end of the boss is provided with a blind hole.
11. The blood lancet according to any one of claims 1 to 10, wherein:
the boss and the recess are adapted to be in interference fit connection with each other.
12. The blood lancet according to any one of claims 1 to 10, wherein:
the boss and the recess are adapted to snap-fit to each other.
13. The blood lancet according to any one of claims 1 to 12, wherein:
the end part of the boss is provided with an accommodating hole arranged along the central axis of the boss, and a hole wall is formed around the accommodating hole;
the concave part is provided with a matching inner ring, the matching inner ring is arranged along the central axis of the concave part, and a matching space is formed between the radial outer wall of the matching inner ring and the radial inner wall of the concave part;
the bore wall of the boss is adapted to enter the mating space.
14. The lancet of claim 13, wherein:
the concave part is provided with a large-diameter concave part and a small-diameter concave part, and the large-diameter concave part is used as a guide structure for guiding the hole wall to enter a matching space between the radial inner wall of the small-diameter concave part and the radial outer wall of the matching inner ring.
15. A blood collection needle assembly comprising:
at least two lancets according to any of claims 1-14,
wherein:
in two adjacent lancets, the boss of one lancet is fittingly connected into the recess of the other lancet.
16. The blood collection needle assembly of claim 15, wherein:
the lancet is the lancet according to 8;
in each blood taking needle, the second end of the needle cap is provided with a flange part on one side of the matching part far away from the needle point, and the diameter of the flange part is larger than the matching diameter;
the concave parts are arranged on the opposite sides of the boss, and the central axes of the concave parts and the central axes of the boss coincide with each other; and is
The axes of the needle handles of two adjacent lancets are generally parallel to each other, and the flange portions are spaced apart from each other or abut each other.
In the present invention, registration includes not only registration, but also substantial registration, such as where the two axes are parallel but spaced apart by less than 2mm, and such as where the angle between the two axes is less than 20 degrees.
In the present invention, the perpendicular includes not only the perpendicular case but also the substantially perpendicular case, for example, the included angle between the two axes is within a range of 20 degrees from 90 degrees.
In the present invention, the parallel includes not only the case of parallel but also the case where the angle between the two axes is less than 20 degrees.
It should be noted that, in the present invention, the boss is not limited to a solid body, and may be a cylinder.
According to the invention, based on the matching between the boss and the recess, two adjacent blood collection needles can be arranged side by side, so that the discharge of the blood collection needles is facilitated, and the scattering is avoided or reduced.
Further, in the present invention, in the case where the boss can also be used as a member for covering the needle tip again after the blood sampling operation, it is helpful to improve the safety of the use of the blood sampling needle.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (16)
1. A blood collection needle comprising:
a needle handle having a first end and a second end;
the needle body, a part of the needle body is located in the first end of the needle handle, and the needle point of the needle body is located outside the first end of the needle handle;
a needle cap having a first end and a second end, the second end of the needle cap being provided with a first needle covering portion that removably covers the needle tip,
wherein:
the needle cap is provided with a boss at the first side of the first end;
the central axis of the boss is vertical to the axis of the needle body arranged in the needle handle;
the needle cap is provided with a recess at a second side of the first end opposite the first side, and the boss and the recess are arranged such that the boss is adapted to fit into the recess.
2. The lancet according to 1, wherein:
the boss is adapted to cover the needle tip after the needle cap is removed from the needle tip.
3. The lancet according to 1 or 2, wherein:
the recessed portions are disposed on opposite sides of the boss, and central axes of the recessed portions and the central axes of the boss coincide with each other.
4. The lancet of claim 3, wherein:
the needle cap is provided with a large-diameter portion which is substantially coaxially arranged with the boss, the diameter of the large-diameter portion is larger than that of the boss, and the recessed portion is arranged in the large-diameter portion.
5. The lancet according to 2, wherein:
the boss has a predetermined height and the needle tip is adapted to be inserted into the boss generally along a central axis of the boss.
6. The lancet of claim 5, wherein:
the predetermined height of the boss is in the range of 2.5mm-3.5 mm.
7. The lancet according to 1 or 2, wherein:
the boss is a cylindrical boss or a conical boss.
8. The lancet according to 2, wherein:
the second end of the needle cap is provided with a matching part, the matching part has a matching diameter suitable for being matched with a needle outlet of a blood sampling pen, the second end of the needle cap is provided with a first needle covering part at one side of the matching part close to the needle point, and the needle point is inserted into the first needle covering part; and is
The maximum diameter of the boss is not greater than the fitting diameter of the fitting portion.
9. The lancet of claim 8, wherein:
the second end of the needle cap is provided with a flange part on one side of the matching part far away from the needle point, and the diameter of the flange part is larger than the matching diameter.
10. The lancet according to 2, wherein:
the end of the boss is provided with a blind hole.
11. The blood lancet according to any one of claims 1 to 10, wherein:
the boss and the recess are adapted to be in interference fit connection with each other.
12. The blood lancet according to any one of claims 1 to 10, wherein:
the boss and the recess are adapted to snap-fit to each other.
13. The blood lancet according to any one of claims 1 to 12, wherein:
the end part of the boss is provided with an accommodating hole arranged along the central axis of the boss, and a hole wall is formed around the accommodating hole;
the concave part is provided with a matching inner ring, the matching inner ring is arranged along the central axis of the concave part, and a matching space is formed between the radial outer wall of the matching inner ring and the radial inner wall of the concave part;
the bore wall of the boss is adapted to enter the mating space.
14. The lancet of claim 13, wherein:
the concave part is provided with a large-diameter concave part and a small-diameter concave part, and the large-diameter concave part is used as a guide structure for guiding the hole wall to enter a matching space between the radial inner wall of the small-diameter concave part and the radial outer wall of the matching inner ring.
15. A blood collection needle assembly comprising:
at least two lancets according to any of claims 1-14,
wherein:
in two adjacent lancets, the boss of one lancet is fittingly connected into the recess of the other lancet.
16. The blood collection needle assembly of claim 15, wherein:
the lancet is the lancet according to 8;
in each blood taking needle, the second end of the needle cap is provided with a flange part on one side of the matching part far away from the needle point, and the diameter of the flange part is larger than the matching diameter;
the concave parts are arranged on the opposite sides of the boss, and the central axes of the concave parts and the central axes of the boss coincide with each other; and is
The axes of the needle handles of two adjacent lancets are generally parallel to each other, and the flange portions are spaced apart from each other or abut each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874400.8A CN111214243A (en) | 2019-09-17 | 2019-09-17 | Blood taking needle and blood taking needle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874400.8A CN111214243A (en) | 2019-09-17 | 2019-09-17 | Blood taking needle and blood taking needle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111214243A true CN111214243A (en) | 2020-06-02 |
Family
ID=70826560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910874400.8A Pending CN111214243A (en) | 2019-09-17 | 2019-09-17 | Blood taking needle and blood taking needle assembly |
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| Country | Link |
|---|---|
| CN (1) | CN111214243A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5870828A (en) * | 1997-06-04 | 1999-02-16 | Violex-Bic, S.A. | Utility knife system |
| US20020151920A1 (en) * | 1999-12-08 | 2002-10-17 | Jeremy Marshall | Integration of a lancette with its capturing and removing cap |
| CN2655813Y (en) * | 2003-09-25 | 2004-11-17 | 宁波美生医疗器材有限公司 | Disposable blood taking needle |
| US20070293883A1 (en) * | 2005-12-12 | 2007-12-20 | Nichinan Corporation | Pricking needle device |
| KR20100007026A (en) * | 2008-07-11 | 2010-01-22 | (주)신원사이언스 | Lancet and lancing apparatus with it |
| US20100042130A1 (en) * | 2008-08-15 | 2010-02-18 | Abbott Diabetes Care Inc. | Lancet and packaging therefor |
| KR101695132B1 (en) * | 2016-06-07 | 2017-01-10 | 박범수 | Apparatus for manufacturing lancet |
| CN211131090U (en) * | 2019-09-17 | 2020-07-31 | 天津华鸿科技股份有限公司 | Blood taking needle and blood taking needle assembly |
-
2019
- 2019-09-17 CN CN201910874400.8A patent/CN111214243A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5870828A (en) * | 1997-06-04 | 1999-02-16 | Violex-Bic, S.A. | Utility knife system |
| US20020151920A1 (en) * | 1999-12-08 | 2002-10-17 | Jeremy Marshall | Integration of a lancette with its capturing and removing cap |
| CN2655813Y (en) * | 2003-09-25 | 2004-11-17 | 宁波美生医疗器材有限公司 | Disposable blood taking needle |
| US20070293883A1 (en) * | 2005-12-12 | 2007-12-20 | Nichinan Corporation | Pricking needle device |
| KR20100007026A (en) * | 2008-07-11 | 2010-01-22 | (주)신원사이언스 | Lancet and lancing apparatus with it |
| US20100042130A1 (en) * | 2008-08-15 | 2010-02-18 | Abbott Diabetes Care Inc. | Lancet and packaging therefor |
| KR101695132B1 (en) * | 2016-06-07 | 2017-01-10 | 박범수 | Apparatus for manufacturing lancet |
| CN211131090U (en) * | 2019-09-17 | 2020-07-31 | 天津华鸿科技股份有限公司 | Blood taking needle and blood taking needle assembly |
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