CN208926432U - A kind of type skin pricking needle - Google Patents
A kind of type skin pricking needle Download PDFInfo
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- CN208926432U CN208926432U CN201820429711.4U CN201820429711U CN208926432U CN 208926432 U CN208926432 U CN 208926432U CN 201820429711 U CN201820429711 U CN 201820429711U CN 208926432 U CN208926432 U CN 208926432U
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Abstract
The utility model discloses a kind of novel skin pricking needles, including syringe needle and shank, pricking needles point is arranged in needle end, and the pricking method needle point is set as the claw-type structure of claw type needle point formation；The shank is cylindrical rod structure, and hand-held part is arranged, and hand-held part is provided with outwardly extending fin structure along longitudinal direction, and the junction of hand-held part and shank, which is recessed inwardly, is provided with annular groove.The pricking needles structure novel, pricking method process Principle of Pain degree is substantially reduced, and patient's tolerance is more preferable；And it is easy to operate, it is easily mastered, it is time saving and energy saving, pricking method liquid is saved, measurement result is accurate；It is with a wide range of applications.
Description
Technical field
The utility model belongs to technical field of medical equipment, and in particular to a kind of novel skin pricking needles.
Background technique
Human skin anaphylactogen vivo detection mainly understands body to the allergy shape of sensitizer by Skin-test
State.There are many method of Skin-test, and wherein dermatological puncture test and intracutaneous test are the most commonly used.With the intradermal examination of anaphylactogen
It tests and compares, anaphylactogen Histamine positive is easy to operate quickly, small to skin injury, pain degree is lower, nonspecific skin is anti-
Answer that incidence is lower, reproducibility of results is good.Therefore, in clinical research and work at home and abroad, the examination of anaphylactogen skin prick
It tests and tends to gradually replace traditional intracutaneous test.The pricking needles syringe needle that can be sold on domestic market is at an acute angle, is directly stained with
The amount of portable allergy stoste is seldom after liquid, therefore, needs to inhale a drop test solution during pricking method by suction pipe, drop is on the skin
Mark line by, pass through drop skin prick drop on the skin with pricking needles, vertical direction gently pushes, and pricking needles spine enters
Skin surface.There are following technology drawbacks for this pricking needles:
A tradition pricking needles point structure is single, and the accuracy of test results depends on the sharpness of pricking needles.If pricking needles
Acuity it is inadequate, cannot ensure that pricking needles can puncture the epidermis of skin completely, anaphylactogen pricking method liquid is not readily accessible to
Mast cell in epidermis, is not achieved test effect；And the acuity of pricking needles is excessively sharp, then may cause the depth of piercing
Degree is too deep, causes dermatorrhagia, there is the possibility for causing Skin-test false positive.The common pricking needles of the country, China may nothing at present
Method reaches accuracy required for anaphylactogen Skin-test.
In B traditional dermatological puncture test, first need skin prick drop on subject's skin of forearm, with
Epidermis is punctured with pricking needles afterwards, operator needs to press pricking needles downward vertically three seconds, just can guarantee and puncture epidermis.Ci get Tai
Shallowly, thorn does not break epidermis, may cause false negative, measures too deeply, in addition to a possibility that pain and bleeding obviously increases, more likely
Cause false positive.Therefore, inspection result is larger by the subjective impact of operator's technical operation.In addition, dermatograph levies positive
Skin after slightly being scratched, the redness of local skin can also be caused, it is red and swollen instead to puncture non-specificity caused by skin itself
It answers, the positive caused by anaphylactogen may be mistaken for, that is, cause false positive results.
C tradition pricking needles are inconvenient for operation, it is not easy to it grasps, it is time-consuming and laborious.Skin is had to pass through in traditional operating process
The three second time of step on skin pricking method drop to skin and pricking needles pressing skin, considerably increase operator when
Between, one group of (10 kinds of anaphylactogens) Skin-test is done, conventional method at least needs 60 second time.For operator, operating efficiency
It is lower；For patients, the operating time is longer, and inspection brings that not accommodate Anxiety stronger.
D tradition pricking needles are at high cost, and loss is high.With traditional pricking method method, the use of skin prick liquid about one is dripped
(0.04-0.05 milliliters), and the pricking method liquid actually needed to is about 0.0005 milliliter.Most pricking method liquid all wastes in fact
(being wiped out after finishing inspection).Since pricking method liquid reagent price is more expensive, the increase of dosage, improve Skin-test at
This.
E tradition pricking needles not can avoid pollution.In traditional skin prick test, drop takes the dropper of anaphylactogen to make repeatedly
With inevitably patient skin can be encountered during pricking method, after the skin for meeting subject, if dropper puts back to anaphylactogen pricking method again
In liquid container, then the secondary pollution of solution for skin test is likely to result in.
F needs to press down on three seconds since traditional pricking needles are in use process, and needle point needs definite piercing table
Skin, pain degree is stronger, and bleeding probability is larger, young children and to pain than more sensitive adult, Skin-test connects
Not high by degree, clinical application is subject to certain restrictions.
Therefore, a kind of novel skin pricking needles how are researched and developed, above-mentioned technical problem is solved, has important practical significance.
Utility model content
For the above-mentioned technical problems in the prior art, the purpose of this utility model is to provide a kind of novel skins
Pricking needles.
The technical solution that the utility model is taken are as follows:
Pricking needles point is arranged in a kind of novel skin pricking needles, including syringe needle and shank, needle end, wherein the pricking needles
Point is set as the pincer structure of claw type needle point formation.
Further, the claw-type structure is one group of pincer structure that two opposite claw type needle points are formed.
Alternatively, the pricking method needle point is that two groups of pincer structures being arranged in 90 ° form.
For example one group of pincer structure, then needle point is two, it is preferred that pricking method needle point, which is set as adjacent side, has perforation U
The triangular prism of shape cavity, top and bottom angle less than 180 °, the top and bottom of the side and triangular prism that make U-shaped cavity are respectively formed pricking method
Two tips of needle point.
Further, 20 ° -30 ° of angle of the adjacent side with perforation U-shaped cavity；The top and bottom angle is
40°-50°。
Two lateral walls of the interconnecting piece of claw type needle point so are just symmetrical slope, between the free end of two claw type needle points
Form the cavity of U-shaped profile.
If pricking method needle point is that two groups of pincer structures being arranged in 90 ° form, then needle point is four；Preferably, the pricking method
Needle point tip is set as the quadrangular that two groups of parallel bottom edges all have perforation U-shaped cavity, and the side of quadrangular is made to form needle point.
Wherein, the shank is cylindrical rod structure；Further, the top of the shank is provided with hand-held part, is
It prevents from skidding, the outer wall of the hand-held part is provided with the pattern or texture for increasing frictional force；
Further, the outer wall of the hand-held part is provided with the fin extended longitudinally.
Further, the adjacent fin is equidistantly arranged in a ring along the outer wall of hand-held part and is arranged.
In addition, hand-held part and the junction of shank are recessed inwardly and are provided with annular groove.
Further, the end of the hand-held part is provided with limited post.
Further, the limited post is set as cylindrical structure.Cylindrical structure is to pick and place and fix for convenience.
When pricking method operates, index finger gently pushes down the top of cylindrical structure, and thumb and middle finger gently rotate to the left and right, and rotational angle is 90 °
Left and right, number of revolutions are twice.It can guarantee that needle point can be steadily contacted and puncture skin surface, will not skid in this way.
When the utility model designs pricking needles, the sharpness of needle point has references to the requirement in medical instruments field to needle point
(such as GB/T 4506-84).To protect needle point, the packing box or bottle that can protect needle point can be designed, specific design can refer to existing
Some pricking needles packagings.Further, it is taken for protection needle point and conveniently, can be in package base, the setting of needle point one end is soft
Foamed plastic, avoid the damage of needle point, can be both configured to be vertically arranged with pricking needles, conveniently take.
Plastics or metal material preparation commonly used in the art can be used in the pricking needles of the utility model, can tolerate high-temperature sterilization
Or ethylene oxide gas carries out disinfection processing.
When in use, first pricking method syringe needle is immersed in pricking method liquid, then then takes out pricking needles, needle point is vertically supported
On the skin, index finger gently pushes down the top of limited post, and thumb and middle finger pinch shank and gently rotate to the left and right, is turned with 90 ° of angles
It is 2 times dynamic, operation can be completed.
The utility model has the following beneficial effects:
The sharp degree structure novel of the pricking method needle point of the utility model is compared with tradition pricking method technology, and the design's is maximum
Advantage is that as a result accurately, pain degree is substantially reduced.
A accuracy is higher:
The sharp degree of pricker is sharp enough, in addition after needle point gently rotates on the skin, it can be ensured that pricking needles can puncture skin
Epidermis, only puncture epidermis, anaphylactogen pricking method liquid can just touch the mast cell in epidermis, reach test effect.
Through the comparative study with traditional pricking needles, the wheal and blush size result of histamine positive control are suitable, therefore this pricking needles can
Reach accuracy required for anaphylactogen Skin-test.
B pain is light, and bleeding is few, and tolerance is good:
Through preliminary test, pain degree caused by this pricking needles is very light, and the pain VAS score value of this pricking needles is lower than conventional point
The pain VAS score value (1.83vs 0.62, p < 0.001) of pricker, Skin-test cause the probability of bleeding to be significantly lower than traditional pricking method
Needle (3.70%vs 0.09%, p < 0.001).
C is low to dermatograph positive pricking method false positive rate
Positive is levied to dermatograph, the false positive rate that this pricking needles occurs is lower (3.8%vs0.9%, p < 0.001).
D is easy to operate, is easily mastered, time saving and energy saving:
Due to eliminating the three seconds time of step and pricking needles pressing skin on skin prick drop to skin,
The time that operator can be saved, after taking this pricking needles, the time can shorten more than half, do one group (10 kinds of anaphylactogens)
Skin-test, 60 second time is at least needed compared to conventional method, and the application only needs~30 second time.For operator, mention
High operating efficiency；For patients, shorten the operating time, will reduce and check that bring does not accommodate anxiety.
E save the cost reduces loss:
With traditional pricking method method, the use of skin prick liquid about one drips 0.05 milliliter, and the pricking method actually needed to
Liquid (entering skin epidermis) is about 0.0005 milliliter.The required pricking method liquid of this pricking needles is about the 1/ of traditional pricking method liquid
50 (0.001 milliliters, loss, which is mainly reflected in, is sticked to the operation bar part meeting adhesion section pricking method liquid that pricking needles enter solution for skin test),
Expensive pricking method liquid reagent can be saved, Skin-test cost is greatly lowered.
F is avoided pollution:
Metal or plastic material can be used in this pricking needles, can tolerate high temperature and pressure or ethylene oxide gas disinfection, it is ensured that face
Bed safe handling.In this pricking needles use process, the pricking needles after disinfection can be placed in pricking method liquid box, and liquid relief and one gas of pricking method are breathed out
At, after finishing Skin-test, abandoned after the pricking needles that therefrom fracture immediately, reduce pollution and nosocomial infection may.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model embodiment 1.
Fig. 2 is the side structure schematic diagram a of the utility model embodiment 1.
Fig. 3 is the side structure schematic diagram b of the utility model embodiment 1.
Fig. 4 is the bottom view of the utility model embodiment 1.
Fig. 5 is the bottom view of the utility model embodiment 2.
Wherein, 1, pricking method needle tip；2, shank；3, annular groove；4, hand-held part；5, fin；6, limited post；7, cavity；
8, slope；9, angle a；10, angle b.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawing.
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of novel skin pricking needles, including syringe needle and hand-held part 4, syringe needle include
Shank 2 and the pricking method needle tip 1 that 2 end of shank is arranged in, the shank 2 of syringe needle and hand-held part 4 are connected to form one formula knot
Structure, the shank 2 and hand-held part 4 are disposed as cylindrical rod structure；The pricking needles portion 1 is set as two claw type needle points and connects
The double-claw type claw-type structure to be formed is connect, rapid and convenient is operated when puncturing.
Pricking method needle point, which is set as adjacent side, has the perforation triangular prism of U-shaped cavity, top and bottom angle less than 180 °, makes U
The side of shape cavity and the top and bottom of triangular prism are respectively formed two tips of pricking method needle point.
Further, the angle a 10 of the adjacent side with perforation U-shaped cavity is 28 °；The top and bottom angle
It is 43.6 ° for b 9.
Two lateral walls of the interconnecting piece of claw type needle point so are just symmetrical slope, between the free end of two claw type needle points
Form the cavity of U-shaped profile.
Two lateral walls of the interconnecting piece of two claw type needle points are set as symmetrical slope 8, and it is oblique that slope 8 is set as half elliptic
The bevel inclination angle of face structure, the slope 8 is set as 20 ° -30 °, which forms biggish contact area, is conducive to
Pricking method liquid is sufficiently coated with the effective usage amount that ensure that each dropping point thorn liquid on 8 surface of the slope of claw type needle point；Two claw type needles
The cavity 7 of U-shaped profile is provided between the free end of point；When claw type needle point oblique cutting is placed in dedicated skin prick liquid container
In 10 seconds or more when, required skin prick liquid can be grabbed by the cavity 7.
The end of hand-held part 4 is provided with limited post 6, and the limited post 6 is set as cylindrical structure.Limited post 6 is convenient for taking
It puts, improves the convenience of operation, while being easily mastered the operation height of hand-held part 4, do not depend on the experience and feel of tester,
It is easy to use.When pricking method operates, index finger gently pushes down the top of cylindrical structure, and thumb and middle finger gently rotate to the left and right, rotation
Angle is that 90 ° of number of revolutions are 2 times.It can guarantee that needle point can be steadily contacted and puncture skin surface, will not skid in this way.Operation
It in the process and is not required to exert oneself vertically downward, reduce caused by needing gently to press three seconds downwards in traditional pricking needles use process not
Systematic error caused by dynamics difference used in biconditional operation person.
When specific processing, longitudinal fin 5 for extending equidistant arrangement setting in a ring is processed on 2 top of shank, is obtained
Hand-held part 4；It is recessed inwardly to form annular groove 3 in a ring further along the junction of syringe needle and hand-held part 4；Simultaneously by the end of syringe needle
Portion is processed as the not parallel triangular prism in top and bottom, and the angle on two opposite inclined-planes distinguishes 43.6 °, and top and bottom angle is 28 °, then
In opposite two inclined-planes cutting placed in the middle, it is recessed inwardly from the tip of needle point and the cavity 7 of U-shaped profile is provided, the two of cavity 7
Side forms two tips 1 with top and bottom respectively.
Pricking needles be it is disposable, pricking method operation after the completion of, the intermediate annular groove for the pricking needles that gently fracture 3
Point, pricking needles can be damaged, the case where reusing is prevented, cross contamination is reduced and infectious agent is propagated.
Embodiment 2
Referring to fig. 2 and Fig. 5, same as Example 1, difference is there is end that there are four needle point, pricking needles sharp portions
It is set as the quadrangular that two groups of parallel bottom edges all have perforation U-shaped cavity, the side of quadrangular is made to form needle point.
When specific processing, longitudinal fin 5 for extending equidistant arrangement setting in a ring is processed on 2 top of shank, is obtained
Hand-held part 4；It is recessed inwardly to form annular groove 3 in a ring further along the junction of syringe needle and hand-held part 4；Simultaneously by the end of syringe needle
It is rectangular quadrangular that portion, which is processed as cross section, and the angle on two opposite inclined-planes is respectively 43.6 ° and 28 °, is then existed respectively
The cutting placed in the middle of the side of bottom surface goes out the U-shaped cavity 7 penetrated through, sees Fig. 5, and the side of U-shaped cavity and the side of quadrangular form needle point point
Portion 1.
Using the pricking needles of the utility model, pricking method depth is more consistent, the general depth about 150-200 for being pierced into skin
Micron, and conventional pricking needles need to push, depth of needling relies primarily on the experience and feel of operator, and difference is very big.
The above is not limitations of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, under the premise of not departing from the utility model in essence range, several variations, modifications, additions or substitutions can also be made,
These improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (12)
1. a kind of type skin pricking needle, including syringe needle and shank, pricking needles point is arranged in needle end, which is characterized in that the pricking needles
Point is set as the pincer structure of claw type needle point formation.
2. a kind of type skin pricking needle according to claim 1, which is characterized in that the claw-type structure is two opposite pawls
One group of pincer structure that shape needle point is formed.
3. a kind of type skin pricking needle according to claim 1, which is characterized in that the pricking method needle point is to be arranged in 90 °
Two groups of pincer structure compositions.
4. a kind of type skin pricking needle according to claim 2, which is characterized in that pricking method needle point, which is set as adjacent side, to be had
The triangular prism of U-shaped cavity, top and bottom angle less than 180 ° is penetrated through, the side of U-shaped cavity and the top and bottom difference shape of triangular prism are made
At two tips of pricking method needle point.
5. a kind of type skin pricking needle according to claim 4, which is characterized in that described that there is the adjacent of perforation U-shaped cavity
20 ° -30 ° of the angle of side；The top and bottom angle is 40 ° -50 °.
6. a kind of type skin pricking needle according to claim 3, which is characterized in that pricking needles sharp portion be set as two groups it is parallel
Bottom edge all has the quadrangular of perforation U-shaped cavity, and the side of quadrangular is made to form needle point.
7. a kind of type skin pricking needle according to claim 1, which is characterized in that the shank is cylindrical rod structure,
The top of the shank is provided with hand-held part, and the outer wall of the hand-held part is provided with the pattern or texture for increasing frictional force；It is described
The end of shank is additionally provided with limited post.
8. a kind of type skin pricking needle according to claim 7, which is characterized in that the outer wall of the hand-held part is provided with along vertical
To the fin of extension.
9. a kind of type skin pricking needle according to claim 8, which is characterized in that the fin is in along the outer wall of hand-held part
Annular equidistant arrangement setting.
10. a kind of type skin pricking needle according to claim 1, which is characterized in that be arranged on the shank fluted.
11. a kind of type skin pricking needle according to claim 10, which is characterized in that the groove is set as annular groove.
12. a kind of type skin pricking needle according to claim 11, which is characterized in that the annular groove is setting hand-held
The annular groove that portion and the junction of shank are recessed inwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820429711.4U CN208926432U (en) | 2018-03-28 | 2018-03-28 | A kind of type skin pricking needle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820429711.4U CN208926432U (en) | 2018-03-28 | 2018-03-28 | A kind of type skin pricking needle |
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| CN208926432U true CN208926432U (en) | 2019-06-04 |
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ID=66713922
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| CN201820429711.4U Active CN208926432U (en) | 2018-03-28 | 2018-03-28 | A kind of type skin pricking needle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108567449A (en) * | 2018-03-28 | 2018-09-25 | 中国医学科学院北京协和医院 | A kind of type skin pricking needle |
| WO2022232903A1 (en) * | 2021-05-07 | 2022-11-10 | Ahmed Ahmed | Allergy skin test apparatus, method, and kit |
-
2018
- 2018-03-28 CN CN201820429711.4U patent/CN208926432U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108567449A (en) * | 2018-03-28 | 2018-09-25 | 中国医学科学院北京协和医院 | A kind of type skin pricking needle |
| WO2022232903A1 (en) * | 2021-05-07 | 2022-11-10 | Ahmed Ahmed | Allergy skin test apparatus, method, and kit |
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