CN211132499U - Intradermal injection needle assembly with fixed puncture angle and depth - Google Patents
Intradermal injection needle assembly with fixed puncture angle and depth Download PDFInfo
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- CN211132499U CN211132499U CN201921566033.7U CN201921566033U CN211132499U CN 211132499 U CN211132499 U CN 211132499U CN 201921566033 U CN201921566033 U CN 201921566033U CN 211132499 U CN211132499 U CN 211132499U
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- intradermal injection
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- injection needle
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Abstract
The utility model discloses an intradermal injection needle subassembly of fixed puncture angle and degree of depth, including the intradermal injection needle to and intradermal injection needle fixed bolster, wherein, intradermal injection needle joinable syringe to and skin puncture, intradermal injection needle fixed bolster is used for controlling the puncture angle and the depth of penetration of intradermal injection needle. The utility model discloses the beneficial effect who gains is: simplify the operation process of intradermal injection in the clinical diagnosis and treatment process, accurately fix the puncture angle and depth and eliminate the pain in the intradermal injection process.
Description
Technical Field
The utility model relates to an intradermal injection needle assembly used in clinical intradermal injection, in particular to an intradermal injection needle assembly capable of fixing puncture angle and depth, belonging to the field of medical appliances.
Background
The intradermal injection method is a method of injecting a small amount of drugs or biological products between epidermis and dermis, and a skin test belongs to one kind of intradermal injection, is a common operation in clinical diagnosis and treatment processes, also called intradermal sensitivity test, and needs to be performed on corresponding drugs before a patient needs to use antibiotics and some special drugs so as to eliminate and avoid possible anaphylactic reactions generated during infusion of the corresponding drugs.
When the test drug is injected into the skin, the skin inner layer is positioned between the epidermis and the dermis, and the effect of intradermal injection is affected by too shallow and too deep puncture.
Because the injection depth in the skin is in the intradermal layer, which is in the nerve and blood vessel free distribution, the injection in the area usually does not cause pain and bleeding, while the subcutaneous layer and the subcutaneous layer are below the intradermal layer, the peripheral nerves and pain temperature receptors in the area are more distributed, and if the depth control is not ideal during the intradermal injection, a subject usually feels pain when a puncture needle punctures the area.
The control of the puncture depth determines the effect of intradermal injection in the process of intradermal injection, the control of the puncture depth is difficult often, long-term clinical training is needed, even experienced medical workers are difficult to control the puncture depth in the process of the puncture injection, and then a testee often has a strong pain feeling in the process of intradermal injection, and the testee is often feared, so in order to solve the problems that the puncture depth is difficult to control in the process of puncture, and the pain feeling in the process of intradermal injection is reduced or even eliminated, the invention provides the intradermal injection needle assembly with the fixed puncture angle and the fixed puncture depth, which can puncture at a certain puncture angle and fix the puncture depth in an intradermal layer, and the intradermal injection needle head is composed of 3 to 9 micro needles to eliminate the pain feeling in the process of skin test.
Disclosure of Invention
To the above-mentioned problem among the prior art, the utility model discloses the problem that solves is: provides an intradermal injection needle assembly which has simple structure, convenient clinical use and can fix the puncture angle and depth.
An intradermal needle assembly of fixed penetration angle and depth comprising: the intradermal injection needle fixing bracket is used for fixing the puncture angle and the puncture depth of the intradermal injection needle.
The intradermal injection needle of the device is composed of a miniature needle head at the front and a needle body at the rear, the miniature needle head is used for skin puncture, the rear part of the needle body can be connected with an injector, a liquid flow channel is arranged in the miniature needle head and the needle body, and preferably, 3 to 9 miniature needle heads are arranged.
The length of the micro needle is 0.1 to 10 mm.
The liquid flow passage of the device is composed of a front liquid flow passage needle head section and a rear liquid flow passage needle head section, the number of the tube cavities of the liquid flow passage needle head section corresponds to the number of the micro needles one by one and is provided with an opening at the head end of the micro needles, and the rear part of the liquid flow passage needle head section is provided with a circular opening which can be butted with an injector.
The intradermal injection needle fixing bracket of the device consists of an intradermal injection needle storage bin at the front and an intradermal injection needle puncturing bin at the rear, and two bin bodies are respectively continued downwards to form a front foot and a rear foot of the intradermal injection needle fixing bracket.
The intradermal injection needle storage bin of the device is provided with an opening at one end, the other end is a blind end and can be placed and fixed with the intradermal injection needle, the intradermal injection needle penetrates through the openings at the two ends of the bin, the intradermal injection needle is placed into the bin when the intradermal injection needle is used, a limit position is arranged in the bin to fix the penetration depth of the intradermal injection needle, and preferably, the inclination angle of the intradermal injection needle penetration bin is 15-90 degrees.
When the intradermal needle of the device is mounted in the intradermal needle puncturing chamber, the tip of the microneedle protrudes from the line connecting the front and rear legs of the intradermal needle mounting bracket, preferably by a length of 1 to 10 mm.
The use process of the device in skin test uses a preferred scheme that the number of the micro needles is 3, and the inclination angle of the intradermal injection needle puncture cabin is 45 degrees.
A pre-use state of the device in which the intradermal needle is positioned within the intradermal needle storage compartment of the intradermal needle holder.
The using state of the device is that firstly, the intradermal injection needle is taken out from the intradermal injection needle storage bin and then is put into the intradermal injection needle puncture bin, the intradermal injection needle puncture bin is internally provided with an upper limit position and a lower limit position to fix the puncture depth of the intradermal injection needle, after the intradermal injection needle is fixed, the injector filled with skin test medicaments is connected to a round opening at the rear part of the intradermal injection needle body, then, the front foot and the rear foot of the intradermal injection needle fixing bracket are attached to the arm skin of a testee, the injector is held by hands and is forced towards the skin direction of the testee, so that 3 micro needles of the intradermal injection needle penetrate into the skin surface of the testee and enter into the intradermal layer, the injection injector injects test medicaments into the intradermal layer, liquid needle flow passage sections in the medicament percutaneous injection needle and 3 liquid flow passage needle sections enter the intradermal layer, and after the injection, the operation is ended.
In the present application, if not specifically stated, the positional relationship of the respective components is based on the positional relationship shown in the drawings, and the adopted devices, instruments, components, dimensions, and other conditions, etc. are well known in the art, or can be realized by those skilled in the art in combination with the prior art according to the description of the application.
In the description of the terms used in the present application, the description in the present application shall control if there is a difference from the previous description in the art.
Drawings
FIG. 1 is a cross-sectional view of a micro needle tip level of an intradermal needle of the device of the present invention;
fig. 2 is a right side view of the device of the present invention (in a pre-use state);
fig. 3 is a top view of the device of the present invention (prior to use);
FIG. 4 is a right side sectional view of the device of the present invention (in a pre-use state);
FIG. 5 is a right side sectional view of the device of the present invention (with the intradermal needle removed);
fig. 6 is a right side view of the device of the present invention (in use);
fig. 7 is a top view (in use) of the device of the present invention;
FIG. 8 is a right side sectional view of the device of the present invention (in use);
FIG. 9 is an enlarged cross-sectional view of the micro-needle of the device of the present invention (in use);
FIG. 10 is a right side view of the device of the present invention shown attached to a syringe (in use);
FIG. 11 is a schematic view of the operation of the device of the present invention when placed on the skin of a subject;
FIG. 12 is a schematic view of the micro-needle of the device of the present invention penetrating the dermis layer of the skin;
number designation in the figures: (1) an intradermal needle holding bracket; (2) a forefoot; (3) a rear leg; (4) an intradermal injection needle; (5) a circular opening; (6) a liquid flow channel needle segment; (7) a micro needle head; (8) an intradermal needle puncture chamber; (9) a liquid flow passage needle section; (10) an injector; (11) an intradermal needle storage bin; (12) upper limiting; (13) lower limiting; (14) an arm; (15) a skin layer; (16) a leather inner layer; (17) the dermis layer.
Detailed Description
The device of the present invention will be further described with reference to the accompanying drawings.
Fig. 1-12 show a preferred embodiment of the device of the present invention, wherein the number of the micro needles is 3, and the inclination angle of the intradermal needle puncturing chamber is 45 degrees.
As shown in fig. 2-4, is the device of the present invention in a pre-use state.
When the device is in the state, the intradermal injection needle (4) is positioned in the intradermal injection needle storage bin (4) of the intradermal injection needle fixing bracket (1).
As shown in fig. 5-12, is the use state of the device of the present invention.
When the device is in the state, firstly, the intradermal injection needle (4) is taken out from an intradermal injection needle storage bin (11) and then is put into the intradermal injection needle puncture bin (8), upper and lower limit positions (12) and (13) are arranged in the intradermal injection needle puncture bin (8) so as to fix the puncture depth of the intradermal injection needle (4), after the intradermal injection needle (4) is fixed, the injector (10) filled with skin test medicaments is connected to a round opening (5) at the rear part of the intradermal injection needle, then, a front foot (2) and a rear foot (3) of an intradermal injection needle fixing bracket (1) are attached to the skin of an arm (14) of a subject, the injector (10) is held by hands and is forced towards the skin direction of the subject, so that 3 micro needle heads (7) of an epidermal layer (4) penetrate into the skin (15) of the subject and enter the intradermal layer (16), and the injector (10) is pushed to inject the test medicaments into the intradermal layer, the liquid flow channel needle body segment (6) in the medicine percutaneous internal injection needle (4) and the 3 liquid flow channel needle body segments (9) enter the intradermal layer (16), and after the injection is finished, the intradermal injection needle assembly is removed, and the operation is finished.
The above embodiments are intended to further illustrate the embodiments of the present invention, but not to limit the present invention, and all the simple modifications, changes and equivalent structural changes made according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (5)
1. An intradermal needle assembly of fixed penetration angle and depth comprising: the intradermal injection needle fixing bracket is used for fixing the puncture angle and the puncture depth of the intradermal injection needle.
2. The intradermal needle assembly of claim 1 wherein the fixed penetration angle and depth is selected from the group consisting of: the intradermal injection needle is composed of a miniature needle head at the front and a needle body at the rear, the miniature needle head is used for skin puncture, the rear part of the needle body can be connected with an injector, and a liquid flow channel is arranged in the miniature needle head and the needle body.
3. The intradermal needle assembly of claim 2 wherein the fixed penetration angle and depth is selected from the group consisting of: the liquid flow channel is composed of a front liquid flow channel needle head section and a rear liquid flow channel needle head section, the number of the tube cavities of the liquid flow channel needle head section corresponds to the number of the micro needles one by one, the tube cavities are opened at the head ends of the micro needles, and the rear part of the liquid flow channel needle head section is provided with a circular opening which can be butted with an injector.
4. The intradermal needle assembly of claim 1 wherein the fixed penetration angle and depth is selected from the group consisting of: the intradermal injection needle fixing bracket is composed of an intradermal injection needle storage bin at the front and an intradermal injection needle puncturing bin at the rear, two bin bodies are respectively continued downwards to form a front foot and a rear foot of the intradermal injection needle fixing bracket, one end of the intradermal injection needle storage bin is opened, the other end of the intradermal injection needle storage bin is a blind end and can be used for placing and fixing the intradermal injection needle, two ends of the intradermal injection needle puncturing bin are opened, the intradermal injection needle is placed into the bin when the intradermal injection needle is used, and a limit position is arranged in the bin to fix the puncturing depth of the intradermal injection needle.
5. The intradermal needle assembly of claim 2 or 4 wherein said fixed penetration angle and depth is selected from the group consisting of: when the intradermal injection needle is fixed in the intradermal injection needle puncture chamber, the tip of the miniature needle head protrudes out of the connecting line of the front foot and the rear foot of the intradermal injection needle fixing bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921566033.7U CN211132499U (en) | 2019-09-20 | 2019-09-20 | Intradermal injection needle assembly with fixed puncture angle and depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921566033.7U CN211132499U (en) | 2019-09-20 | 2019-09-20 | Intradermal injection needle assembly with fixed puncture angle and depth |
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| Publication Number | Publication Date |
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| CN211132499U true CN211132499U (en) | 2020-07-31 |
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| CN201921566033.7U Active CN211132499U (en) | 2019-09-20 | 2019-09-20 | Intradermal injection needle assembly with fixed puncture angle and depth |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110478576A (en) * | 2019-09-20 | 2019-11-22 | 灏曦(天津)生物技术有限公司 | A kind of intracutaneous injection needle assemblies of fixed puncture angle and depth |
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2019
- 2019-09-20 CN CN201921566033.7U patent/CN211132499U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110478576A (en) * | 2019-09-20 | 2019-11-22 | 灏曦(天津)生物技术有限公司 | A kind of intracutaneous injection needle assemblies of fixed puncture angle and depth |
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