CN108057146B - Closed type needle assembly for insulin injection - Google Patents
Closed type needle assembly for insulin injection Download PDFInfo
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- CN108057146B CN108057146B CN201711321607.XA CN201711321607A CN108057146B CN 108057146 B CN108057146 B CN 108057146B CN 201711321607 A CN201711321607 A CN 201711321607A CN 108057146 B CN108057146 B CN 108057146B
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- protective sleeve
- needle
- end protective
- hole
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- 238000002347 injection Methods 0.000 title claims abstract description 68
- 239000007924 injection Substances 0.000 title claims abstract description 68
- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 102000004877 Insulin Human genes 0.000 title claims abstract description 34
- 108090001061 Insulin Proteins 0.000 title claims abstract description 34
- 229940125396 insulin Drugs 0.000 title claims abstract description 34
- 230000001681 protective effect Effects 0.000 claims abstract description 124
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 239000000645 desinfectant Substances 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 229920000742 Cotton Polymers 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical group II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 230000002421 anti-septic effect Effects 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 210000002615 epidermis Anatomy 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 210000003491 skin Anatomy 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- 206010012601 diabetes mellitus Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3202—Devices for protection of the needle before use, e.g. caps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M35/00—Devices for applying media, e.g. remedies, on the human body
- A61M35/003—Portable hand-held applicators having means for dispensing or spreading integral media
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a closed needle head component for insulin injection, which is characterized in that: the front end protection sleeve comprises a front end protection sleeve (1) and a rear end protection sleeve (2), wherein the front end of the front end protection sleeve (1) is closed, the rear end of the front end protection sleeve (1) is connected with the front end of the rear end protection sleeve (2), and the front end protection sleeve (1) is communicated with the rear end protection sleeve (2); the front section of the front end protective sleeve (1) is sleeved with a front end outer sleeve (3), and the front end outer sleeve (3) is in sliding contact with the front end protective sleeve (1); a first through hole (4) is formed in the front end face of the front end outer sleeve (3), and a first sealing sheet (5) is arranged on the first through hole (4); a second through hole (6) is formed in the front end face of the front end protective sleeve (1), and the axes of the first through hole (4) and the second through hole (6) are located on the same straight line; be provided with syringe needle (8) in front end protective case (1), the front end of syringe needle (8) is most advanced and towards through-hole two (6), and the rear end of syringe needle (8) is connected with sliding connection sleeve (9), and sliding connection sleeve (9) set up in front end protective case (1) and communicate with syringe needle (8). The technical scheme of this application's simple structure, the convenience is used in outdoor environment and is carried out the insulin injection.
Description
Technical Field
The invention relates to a closed needle assembly for insulin injection, and belongs to the field of medical instruments.
Background
Many people suffer from diabetes. Because of their diabetes, many of them have to inject several times a day, usually after eating, and therefore need to carry insulin syringes with them wherever they go. There are currently many different designs of insulin syringes of more or less complex with which the dose (i.e. the number of units to be injected) can be set and which contain several doses of insulin. In the prior art, an insulin syringe and an injection needle are separately arranged, when insulin injection is needed, the injection needle is arranged on the syringe for injection, the injection needle is removed and discarded after the injection is finished, and the syringe is arranged for next use. When insulin is injected, the puncture part needs to be disinfected firstly and then injected, but the existing disinfection tool and the injection device are separately arranged, and are inconvenient to carry when going out. And current syringe needle only wraps up through the extranal packing, tears the back with the extranal packing, and syringe needle has a period of time to expose in the air, can cause comparatively serious pollution to the syringe needle.
Disclosure of Invention
Aiming at the problems that the existing disinfection tool and the injection device are separately arranged and are inconvenient to carry when going out in the prior art. And current syringe needle only wraps up through the extranal packing, tears the back with the extranal packing, and syringe needle has a period of time to expose in the air, can cause the not enough of comparatively serious pollution "to the syringe needle, provides an insulin injection with closed syringe needle subassembly.
In order to solve the technical problem, the invention adopts the technical scheme that the closed needle assembly for insulin injection comprises a front-end protective sleeve and a rear-end protective sleeve, wherein the front end of the front-end protective sleeve is closed, the rear end of the front-end protective sleeve is connected with the front end of the rear-end protective sleeve, and the front-end protective sleeve is communicated with the rear-end protective sleeve; the front section of the front end protective sleeve is sleeved with a front end outer sleeve, and the front end outer sleeve is in sliding contact with the front end protective sleeve; a first through hole is formed in the front end face of the front end outer sleeve, and a first sealing sheet is arranged on the first through hole; the front end surface of the front end protective sleeve is provided with a second through hole, and the axes of the first through hole and the second through hole are positioned on the same straight line; an injection needle is arranged in the front-end protective sleeve, the front end of the injection needle is a pointed end and faces the second through hole, the rear end of the injection needle is connected with a sliding connection sleeve, the sliding connection sleeve is arranged in the front-end protective sleeve and is communicated with the injection needle, the rear end of the sliding connection sleeve is connected with a telescopic sleeve, one end of the telescopic sleeve is sleeved with the end part of the sliding connection sleeve, the other end of the telescopic sleeve is connected with a rear-end connection sleeve, the rear-end connection sleeve is arranged in the rear-end protective sleeve, and the outer side wall of the rear-end connection sleeve is fixedly sealed with the inner; disinfectant is filled between the inner surface of the front-end external sleeve and the outer surface of the front section of the front-end protective sleeve; an internal puncture needle is arranged in the front end protective sleeve, the front end of the internal puncture needle is closed by the rear end of the tip internal puncture needle, and the internal puncture needle penetrates through the front end surface of the front end protective sleeve and is in sliding connection with the front end protective sleeve; a fixing component is arranged between the outer surface of the sliding connection sleeve and the inner surface of the front end protective sleeve, and after the front end outer sleeve extrudes the inner puncture needle when sliding on the front end protective sleeve, the rear end of the inner puncture needle extrudes the fixing component to enable the fixing component to be separated from the sliding connection sleeve; a sealing fin III is attached to the rear end face of the rear end protective sleeve; an inner limiting sheet is arranged inside the front section of the front end protective sleeve, and the injection needle penetrates through the inner limiting sheet and is in sliding contact with the inner limiting sheet; a connecting plate is arranged on the side wall of the sliding connecting sleeve, a tension spring is arranged between the connecting plate and the internal limiting piece, and two ends of the tension spring are respectively fixedly connected with the connecting plate and the internal limiting piece; the side part of the front section of the internal puncture needle is provided with a limiting fin; after the front-end outer sleeve slides on the front-end protective sleeve, the limiting fin is in contact with the inner surface of the front end of the front-end outer sleeve.
The technical scheme of this application has set up front end protective case and rear end protective case, and through the encirclement of front end outside sleeve pipe, front end protective case, rear end protective case and gasket three and form a confined space, set up the syringe needle in this confined space. After the outer package of the injection needle is torn off, the injection needle is protected from contacting with air through the front-end outer sleeve, the front-end protective sleeve, the rear-end protective sleeve and the sealing sheet, and the injection needle is prevented from being polluted when exposed to the air.
Among the technical scheme of this application, it has the antiseptic solution to fill between the anterior segment surface of front end outside sleeve pipe internal surface and front end protective case, when using, make front end outside sleeve pipe to the removal of front end protective case rear end direction through promoting front end outside sleeve pipe, after front end outside sleeve pipe removes, inside pjncture needle punctures gasket one, and the antiseptic solution between the anterior segment surface of front end outside sleeve pipe internal surface and front end protective case flows out to the patient's epidermis through the position that gasket one punctures and disinfects.
The telescopic tube in this application can adopt silica gel elasticity hose or silica gel organ pipe among the prior art.
The utility model provides an injection needle is when using, installs rear end protective sleeve on the syringe, and insulin syringe's tip link all is standard construction among the prior art, the rear portion opening shape of the rear end protective sleeve of this application make into with insulin syringe's tip link complex standard construction.
After the rear-end protective sleeve is fixedly arranged on the injector, the front-end outer sleeve is moved towards the rear end of the front-end protective sleeve, the inner puncture needle punctures the first sealing sheet, and the disinfectant flows out to disinfect the epidermis of a patient. The inner puncture needle is pushed to move towards the rear end of the front end protective sleeve, the rear end of the inner puncture needle pushes the fixing component to enable the fixing component to be separated from the sliding connection sleeve, and the sliding connection sleeve drives the injection needle to move towards the front end of the front end protective sleeve under the action of the tension spring and puncture the first sealing sheet. In order to reduce the time during which the injection needle is exposed to air, the front end of the front end outer sleeve may be moved in the direction of the rear end of the front end protective sleeve after aligning the front end of the front end outer sleeve with the site to be injected and applying it to the skin of the patient during use.
When the rear end protective sleeve is installed on the syringe, if need tear the gasket three, the inside of rear end protective sleeve has a period of time to expose in the air so, in order to avoid this condition, the gasket three of this application can adopt the aluminium foil paper material, cup joint the rear end protective sleeve in the tip of syringe, need not tear the gasket three, only need when cup jointing the tip through the syringe with gasket three break can, can reduce the time of the inside exposure in the air of rear end protective sleeve.
After the front end outer sleeve moves towards the rear end of the front end protective sleeve, the front end inner surface of the front end outer sleeve is in contact with the limiting fin and pushes the limiting fin to move so as to push the inner puncture needle to move.
Optimized, above-mentioned insulin injection is with closed syringe needle subassembly, the inside inner chamber that is provided with of anterior segment of inside pjncture needle, the tip opening of inside cavity sets up on the preceding terminal surface of inside pjncture needle, is provided with the water conservancy diversion hole on the anterior segment lateral wall of inside pjncture needle, water conservancy diversion hole and inside cavity intercommunication.
The antiseptic solution flows into the inner cavity through the diversion hole and flows out through the end opening of the inner cavity so as to disinfect the skin of the patient.
Preferably, the fixing component of the closed type needle assembly for insulin injection comprises a rotation limiting sheet, and the middle part of the rotation limiting sheet is rotatably connected with the inner wall of the front end protective sleeve; the side wall of the sliding connection sleeve is provided with an arc-shaped groove, and the inner wall of the front-end protection sleeve is fixedly connected with two elastic metal sheets which are arranged in parallel; one end of the rotating limiting piece is arranged in the arc-shaped groove and is in sliding contact with the arc-shaped groove, and the other end of the rotating limiting piece is arranged between the two elastic metal pieces.
The rotation limiting piece limits the movement of the sliding connection sleeve when the needle head is not used, and the rotation limiting piece is limited by the elastic metal piece not to rotate. After the sliding connection sleeve pushes the elastic metal sheets, the rotating limiting sheet between the two elastic metal sheets rotates and is separated from contact with the arc-shaped groove, so that the sliding connection sleeve is separated from the limit of the rotating limiting sheet and can move in the front end protective sleeve.
Preferably, the two sides of the sliding connection sleeve are respectively provided with a group of fixing components.
Preferably, the closed type needle assembly for insulin injection is characterized in that a plurality of elastic support rods are arranged between the front end outer sleeve and the front end outer sleeve, and two ends of each elastic support rod are fixedly connected with the front end outer sleeve and the front end outer sleeve respectively.
Preferably, the closed type needle assembly for insulin injection is characterized in that the elastic support rod is an arc-shaped nylon elastic rod.
In order to prevent the outer sleeve pipe maloperation of front end, increased the elastic support pole among the technical scheme of this application, supported position between outer sleeve pipe of front end and the outer sleeve pipe of front end. When in use, the elastic support rod is deformed by applying force. After the injection is completed, the elastic supporting rod generates elastic recovery to enable the front end outer sleeve to recover the original position, so that the injection needle is wrapped by the front end outer sleeve again, and the injection needle is prevented from exposing other people by mistake. Preferably, in the closed type needle assembly for insulin injection, the rear connecting sleeve is a conical cylinder, and the edge of the end part of the rear connecting sleeve is sealed with the inner wall of the rear protective sleeve in an adhesive manner.
Preferably, the second through hole is provided with a second sealing sheet.
The sealing plate II can keep the sealing performance inside the needle assembly after the sealing plate I is subjected to aging.
Preferably, in the closed type needle assembly for insulin injection, absorbent cotton pre-impregnated with a disinfectant is filled between the inner surface of the front end outer sleeve and the outer surface of the front section of the front end protective sleeve, and the disinfectant is iodine tincture.
In order to prevent the disinfectant from leaking, the disinfectant is adsorbed by absorbent cotton, so that the fluidity of the disinfectant is reduced.
The invention has the advantages that: the technical scheme of this application has set up front end protective case and rear end protective case, and through the encirclement of front end outside sleeve pipe, front end protective case, rear end protective case and gasket three and form a confined space, set up the syringe needle in this confined space. After the outer package of the injection needle is torn off, the injection needle is protected from contacting with air through the front-end outer sleeve, the front-end protective sleeve, the rear-end protective sleeve and the sealing sheet, and the injection needle is prevented from being polluted when exposed to the air. Among the technical scheme of this application, it has the antiseptic solution to fill between the anterior segment surface of front end outside sleeve pipe internal surface and front end protective case, when using, make front end outside sleeve pipe to the removal of front end protective case rear end direction through promoting front end outside sleeve pipe, after front end outside sleeve pipe removes, inside pjncture needle punctures gasket one, and the antiseptic solution between the anterior segment surface of front end outside sleeve pipe internal surface and front end protective case flows out to the patient's epidermis through the position that gasket one punctures and disinfects.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
fig. 3 is an enlarged view of fig. 2 at a.
Detailed Description
The technical features of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Detailed Description
The invention relates to a closed type needle head assembly for insulin injection, which comprises a front end protective sleeve 1 and a rear end protective sleeve 2, wherein the front end of the front end protective sleeve 1 is closed, the rear end of the front end protective sleeve 1 is connected with the front end of the rear end protective sleeve 2, and the front end protective sleeve 1 is communicated with the rear end protective sleeve 2; the front section of the front end protective sleeve 1 is sleeved with a front end outer sleeve 3, and the front end outer sleeve 3 is in sliding contact with the front end protective sleeve 1; a first through hole 4 is formed in the front end face of the front end outer sleeve 3, and a first sealing sheet 5 is arranged on the first through hole 4; the front end surface of the front end protective sleeve 1 is provided with a through hole II 6, and the axes of the through hole I4 and the through hole II 6 are positioned on the same straight line; an injection needle 8 is arranged in the front-end protective sleeve 1, the front end of the injection needle 8 is a pointed end and faces the through hole II 6, the rear end of the injection needle 8 is connected with a sliding connection sleeve 9, the sliding connection sleeve 9 is arranged in the front-end protective sleeve 1 and is communicated with the injection needle 8, the rear end of the sliding connection sleeve 9 is connected with a telescopic sleeve 10, one end of the telescopic sleeve 10 is sleeved with the end part of the sliding connection sleeve 9, the other end of the telescopic sleeve 10 is connected with a rear connection sleeve 11, the rear connection sleeve 11 is arranged in the rear-end protective sleeve 2, and the outer side wall of the rear connection sleeve 11 is fixed with the inner surface of the rear-end protective sleeve 2 in; disinfectant is filled between the inner surface of the front-end outer sleeve 3 and the outer surface of the front section of the front-end protective sleeve 1; an inner puncture needle 12 is arranged in the front end protective sleeve 1, the front end of the inner puncture needle 12 is closed by the rear end of the sharp-end inner puncture needle 12, and the inner puncture needle 12 penetrates through the front end surface of the front end protective sleeve 1 and is in sliding connection with the front end protective sleeve 1; a fixing component is arranged between the outer surface of the sliding connection sleeve 9 and the inner surface of the front end protection sleeve 1, after the front end outer sleeve 3 extrudes the inner puncture needle 12 when sliding on the front end protection sleeve 1, the rear end of the inner puncture needle 12 extrudes the fixing component to enable the fixing component to be separated from the sliding connection sleeve 9; a third sealing sheet 13 is attached to the rear end surface of the rear end protective sleeve 2; an inner limiting sheet 18 is arranged in the front section of the front end protective sleeve 1, and the injection needle 8 penetrates through the inner limiting sheet 18 and is in sliding contact with the inner limiting sheet 18; the side wall of the sliding connection sleeve 9 is provided with a connecting plate 22, a tension spring 23 is arranged between the connecting plate 22 and the internal limiting piece 18, and two ends of the tension spring 23 are respectively fixedly connected with the connecting plate 22 and the internal limiting piece 18.
The technical scheme of this application has set up front end protective sleeve 1 and rear end protective sleeve 2, and the surrounding of three 13 through front end outside sleeve 3, front end protective sleeve 1, rear end protective sleeve 2 and gasket forms a confined space, sets up syringe needle 8 in this confined space. After the outer package of the injection needle is torn off, the injection needle 8 is protected from contacting with the air through the front end outer sleeve 3, the front end protective sleeve 1, the rear end protective sleeve 2 and the sealing sheet III 13, and the injection needle 8 is prevented from being polluted when exposed to the air.
Among the technical scheme of this application, it has the antiseptic solution to fill between the anterior segment surface of front end outer sleeve 3 internal surface and front end protective case 1, when using, make front end outer sleeve 3 to move to front end protective case 1 rear end direction through promoting front end outer sleeve 3, after front end outer sleeve 3 removes, sealing plate 5 is punctured to inside pjncture needle 12, and the antiseptic solution between front end outer sleeve 3 internal surface and the anterior segment surface of front end protective case 1 flows out to the patient's epidermis and disinfects through the position that sealing plate 5 was punctured.
The utility model provides an injection needle is when using, installs rear end protective sleeve 2 on the syringe, and the tip link of insulin syringe all is standard construction among the prior art, and the rear portion opening shape of rear end protective sleeve 2 of this application makes into the tip link complex standard construction with insulin syringe.
After the rear-end protective sleeve 2 is fixedly arranged on the injector, the front-end outer sleeve 3 moves towards the rear end of the front-end protective sleeve 1, the inner puncture needle 12 punctures the first sealing sheet 5, and disinfectant flows out to disinfect the epidermis of a patient. The inner puncture needle 12 is pushed to move towards the rear end of the front end protection sleeve 1, the rear end of the inner puncture needle 12 pushes the fixing component to enable the fixing component to be separated from the sliding connection sleeve 9, and the sliding connection sleeve 9 drives the injection needle head 8 to move towards the front end of the front end protection sleeve 1 under the action of the tension spring 23 and puncture the first sealing sheet 5. In order to reduce the time during which the injection needle 8 is exposed to the air, the front end of the front end outer sleeve 3 may be directed to the site to be injected and applied to the skin of the patient before the front end outer sleeve 3 is moved in the direction of the rear end of the front end protective sleeve 1.
When rear end protective sleeve 2 installs on the syringe, if need tear three 13 of gasket, so rear end protective sleeve 2's inside has a period of time to expose in the air, in order to avoid this condition, three 13 gaskets of this application can adopt the aluminium foil paper material, when cup jointing rear end protective sleeve 2 in the tip of syringe, need not tear three 13 gaskets, only need when cup jointing the tip through the syringe with three 13 bursting of gasket can, can reduce the time of rear end protective sleeve 2's inside exposure in the air.
The side part of the front section of the inner puncture needle 12 is provided with a limiting fin 14; after the front end outer sleeve 3 slides on the front end protective sleeve 1, the stopper fin 14 is in contact with the front end inner surface of the front end outer sleeve 3.
After the front end outer sleeve 3 is moved toward the rear end of the front end protective sleeve 1, the front end inner surface of the front end outer sleeve 3 comes into contact with the stopper fin 14 and pushes the stopper fin 14 to move and thus the inner puncture needle 12 to move.
An inner cavity 25 is arranged inside the front section of the inner puncture needle 12, an end opening of the inner cavity 25 is arranged on the front end face of the inner puncture needle 12, a diversion hole 19 is formed in the side wall of the front section of the inner puncture needle 12, and the diversion hole 19 is communicated with the inner cavity 25.
The disinfecting liquid flows into the inner cavity 25 through the guiding holes 19 and flows out through the end opening of the inner cavity 25 to disinfect the skin of the patient.
The fixing component comprises a rotation limiting sheet 15, and the middle part of the rotation limiting sheet 15 is rotatably connected with the inner wall of the front-end protective sleeve 1; an arc-shaped groove 16 is formed in the side wall of the sliding connection sleeve 9, and two elastic metal sheets 17 which are arranged in parallel are fixedly connected to the inner wall of the front-end protection sleeve 1; one end of the rotation limiting piece 15 is arranged in the arc-shaped groove 16 and is in sliding contact with the arc-shaped groove 16, and the other end of the rotation limiting piece 15 is arranged between the two elastic metal sheets 17.
The rotation limiting sheet 15 limits the movement of the sliding connection sleeve 9 when the needle is not used, and the rotation limiting sheet 15 is limited not to rotate by the elastic metal sheet 17. After the sliding connection sleeve 9 pushes the elastic metal sheets 17, the rotation limiting sheet 15 between the two elastic metal sheets 17 rotates and is separated from contact with the arc-shaped groove 16, so that the sliding connection sleeve 9 is separated from the limitation of the rotation limiting sheet 15 and can move in the front end protection sleeve 1.
And a group of fixing components are respectively arranged on two sides of the sliding connection sleeve 9.
A plurality of elastic support rods 20 are arranged between the front end outer sleeve 3 and the front end outer sleeve 3, and two ends of each elastic support rod 20 are fixedly connected with the front end outer sleeve 3 and the front end outer sleeve 3 respectively.
The elastic support rod 20 is an arc nylon elastic rod.
In order to prevent the misoperation of the front end outer sleeve 3, an elastic support rod 20 is added in the technical scheme of the application to support the position between the front end outer sleeve 3 and the front end outer sleeve 3. In use, the resilient support rod 20 is deformed by the application of force. After the injection is completed, the elastic support rod 20 is elastically restored to restore the front end outer sleeve 3 to the original position, so that the injection needle 8 is wrapped by the front end outer sleeve 3 again, and the injection needle 8 is prevented from being exposed to injure others by mistake. Preferably, in the closed type needle assembly for insulin injection, the rear connecting sleeve 11 is a conical cylinder, and the edge of the end part of the rear connecting sleeve 11 is sealed with the inner wall of the rear protecting sleeve 2 in an adhesive manner.
And a second sealing sheet 7 is arranged on the second through hole 6.
The second sealing sheet 7 can keep the sealing performance inside the needle assembly after the first sealing sheet 5 is aged.
And absorbent cotton presoaked with disinfectant is filled between the inner surface of the front-end outer sleeve 3 and the outer surface of the front section of the front-end protective sleeve 1, and the disinfectant is iodine tincture.
In order to prevent the disinfectant from leaking, the disinfectant is adsorbed by absorbent cotton, so that the fluidity of the disinfectant is reduced.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should understand that they can make various changes, modifications, additions and substitutions within the spirit and scope of the present invention.
Claims (9)
1. A closed syringe needle subassembly for insulin injection which characterized in that: the front end protection sleeve comprises a front end protection sleeve (1) and a rear end protection sleeve (2), wherein the front end of the front end protection sleeve (1) is closed, the rear end of the front end protection sleeve (1) is connected with the front end of the rear end protection sleeve (2), and the front end protection sleeve (1) is communicated with the rear end protection sleeve (2); the front section of the front end protective sleeve (1) is sleeved with a front end outer sleeve (3), and the front end outer sleeve (3) is in sliding contact with the front end protective sleeve (1); a first through hole (4) is formed in the front end face of the front end outer sleeve (3), and a first sealing sheet (5) is arranged on the first through hole (4); a second through hole (6) is formed in the front end face of the front end protective sleeve (1), and the axes of the first through hole (4) and the second through hole (6) are located on the same straight line; an injection needle (8) is arranged in the front-end protective sleeve (1), the front end of the injection needle (8) is a pointed end and faces towards the second through hole (6), the rear end of the injection needle (8) is connected with a sliding connection sleeve (9), the sliding connection sleeve (9) is arranged in the front-end protective sleeve (1) and is communicated with the injection needle (8), the rear end of the sliding connection sleeve (9) is connected with an expansion sleeve (10), one end of the expansion sleeve (10) is sleeved with the end part of the sliding connection sleeve (9), the other end of the expansion sleeve (10) is connected with a rear connection sleeve (11), the rear connection sleeve (11) is arranged in the rear-end protective sleeve (2), and the outer side wall of the rear connection sleeve (11) is fixed with the inner surface of the rear-end protective sleeve (2) in a sealing; disinfectant is filled between the inner surface of the front-end outer sleeve (3) and the outer surface of the front section of the front-end protective sleeve (1); an inner puncture needle (12) is arranged in the front end protective sleeve (1), the front end of the inner puncture needle (12) is a tip end, the rear end of the inner puncture needle (12) is closed, and the inner puncture needle (12) penetrates through the front end face of the front end protective sleeve (1) and is in sliding connection with the front end protective sleeve (1); a fixing component is arranged between the outer surface of the sliding connection sleeve (9) and the inner surface of the front end protective sleeve (1), after the front end outer sleeve (3) extrudes the inner puncture needle (12) when sliding on the front end protective sleeve (1), the rear end of the inner puncture needle (12) extrudes the fixing component to enable the fixing component to be separated from the sliding connection sleeve (9); a sealing fin III (13) is attached to the rear end face of the rear end protective sleeve (2); an inner limiting sheet (18) is arranged inside the front section of the front end protective sleeve (1), and the injection needle (8) penetrates through the inner limiting sheet (18) and is in sliding contact with the inner limiting sheet (18); a connecting plate (22) is arranged on the side wall of the sliding connecting sleeve (9), a tension spring (23) is arranged between the connecting plate (22) and the internal limiting sheet (18), and two ends of the tension spring (23) are respectively fixedly connected with the connecting plate (22) and the internal limiting sheet (18); a limiting fin (14) is arranged at the side part of the front section of the inner puncture needle (12); after the front end outer sleeve (3) slides on the front end protective sleeve (1), the limiting fins (14) are in contact with the inner surface of the front end outer sleeve (3).
2. The closed needle assembly for insulin injection according to claim 1, wherein: an inner cavity (25) is arranged inside the front section of the inner puncture needle (12), an end opening of the inner cavity (25) is arranged on the front end face of the inner puncture needle (12), a diversion hole (19) is formed in the side wall of the front section of the inner puncture needle (12), and the diversion hole (19) is communicated with the inner cavity (25).
3. The closed needle assembly for insulin injection according to claim 1, wherein: the fixing component comprises a rotary limiting sheet (15), and the middle part of the rotary limiting sheet (15) is rotatably connected with the inner wall of the front end protective sleeve (1); an arc-shaped groove (16) is formed in the side wall of the sliding connection sleeve (9), and two elastic metal sheets (17) which are arranged in parallel are fixedly connected to the inner wall of the front-end protection sleeve (1); one end of the rotary limiting piece (15) is arranged in the arc-shaped groove (16) and is in sliding contact with the arc-shaped groove (16), and the other end of the rotary limiting piece (15) is arranged between the two elastic metal sheets (17).
4. The closed needle assembly for insulin injection according to claim 3, wherein: and two sides of the sliding connection sleeve (9) are respectively provided with a group of fixing components.
5. The closed needle assembly for insulin injection according to claim 1, wherein: a plurality of elastic supporting rods (20) are arranged between the rear end protective sleeve (2) and the front end outer sleeve (3), and two ends of each elastic supporting rod (20) are fixedly connected with the rear end protective sleeve (2) and the front end outer sleeve (3) respectively.
6. The closed needle assembly for insulin injection according to claim 5, wherein: the elastic support rod (20) is an arc-shaped nylon elastic rod.
7. The closed needle assembly for insulin injection according to claim 1, wherein: the rear connecting sleeve (11) is a conical cylinder, and the edge of the end part of the rear connecting sleeve (11) is sealed with the inner wall of the rear end protective sleeve (2) in an adhesive manner.
8. The closed needle assembly for insulin injection according to claim 1, wherein: and a second sealing sheet (7) is arranged on the second through hole (6).
9. The closed needle assembly for insulin injection according to claim 1, wherein: absorbent cotton presoaked with disinfectant is filled between the inner surface of the front-end outer sleeve (3) and the outer surface of the front section of the front-end protective sleeve (1), and the disinfectant is iodine tincture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711321607.XA CN108057146B (en) | 2017-12-12 | 2017-12-12 | Closed type needle assembly for insulin injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711321607.XA CN108057146B (en) | 2017-12-12 | 2017-12-12 | Closed type needle assembly for insulin injection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108057146A CN108057146A (en) | 2018-05-22 |
| CN108057146B true CN108057146B (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711321607.XA Expired - Fee Related CN108057146B (en) | 2017-12-12 | 2017-12-12 | Closed type needle assembly for insulin injection |
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| CN (1) | CN108057146B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111570433A (en) * | 2020-05-24 | 2020-08-25 | 江山市发发科技有限公司 | Membrane isolation disinfection storage flusher |
| CN111570427A (en) * | 2020-05-24 | 2020-08-25 | 江山市发发科技有限公司 | Preassembled medical flusher and assembling and flushing method thereof |
| CN111570426A (en) * | 2020-05-24 | 2020-08-25 | 江山市发发科技有限公司 | Pre-assembled medical flusher |
| CN111569192B (en) * | 2020-05-28 | 2022-02-15 | 中国人民解放军陆军军医大学第一附属医院 | Safety insulin injection pen |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8932264B2 (en) * | 2003-08-11 | 2015-01-13 | Becton, Dickinson And Company | Medication delivery pen assembly with needle locking safety shield |
| DE102006042233B3 (en) * | 2006-09-06 | 2008-03-06 | Tecpharma Licensing Ag | Needle guard with distal and proximal needle guard |
| GB2467904B (en) * | 2009-02-17 | 2013-06-12 | Oval Medical Technologies Ltd | Drug container and delivery mechanism |
| CN203749455U (en) * | 2014-03-05 | 2014-08-06 | 徐增山 | Bone marrow biopsy puncture sampling device for hematology department |
| CN104027118B (en) * | 2014-06-29 | 2016-05-18 | 白杨 | Disposable sterilization puncture harvester |
| CN106668909A (en) * | 2015-11-07 | 2017-05-17 | 重庆正阳空调设备有限公司 | Sterilizing liquid supply method of surface cleaning apparatus |
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2017
- 2017-12-12 CN CN201711321607.XA patent/CN108057146B/en not_active Expired - Fee Related
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| CN108057146A (en) | 2018-05-22 |
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