CN110917447A - Telescopic anti-acupuncture injection needle - Google Patents
Telescopic anti-acupuncture injection needle Download PDFInfo
- Publication number
- CN110917447A CN110917447A CN201911418881.8A CN201911418881A CN110917447A CN 110917447 A CN110917447 A CN 110917447A CN 201911418881 A CN201911418881 A CN 201911418881A CN 110917447 A CN110917447 A CN 110917447A
- Authority
- CN
- China
- Prior art keywords
- needle
- sliding sleeve
- sliding
- handle
- boss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
-
- 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
-
- 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
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
-
- 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
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3213—Caps placed axially onto the needle, e.g. equipped with finger protection guards
-
- 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
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
-
- 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
- A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Environmental & Geological Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A telescopic anti-acupuncture injection needle relates to the technical field of injection needles and comprises a needle seat, a needle handle and a needle tube, wherein a protective sleeve for protecting the needle tube is sleeved on the needle tube; the inner layer sliding sleeve, the plurality of middle layer sliding sleeves and the outer layer sliding sleeve are nested in sequence, and sliding clamping mechanisms are arranged between the needle handle and the inner layer sliding sleeve and between the two adjacent layers of sliding sleeves. The invention is safer for nursing personnel and patients, reduces the pain and discomfort of the patients as much as possible, and reduces the production cost at the same time.
Description
Technical Field
The invention relates to the technical field of injection needles, in particular to a telescopic anti-acupuncture injection needle.
Background
At present, a technology of sucking a medicine with a disposable syringe and performing intramuscular injection is widely used in hospitals. However, most disposable syringes in the market at present cannot be used for one time really, and if the syringes are used repeatedly, diseases are easily spread among different people, cross infection is caused, and the health of the public is harmed; in addition, after the traditional syringe is used, the needle head is exposed outside, so that the needle head is easy to cause needle stick injury to medical staff, psychological panic of the medical staff can be caused, and even diseases can be seriously infected. Unsafe injection of a disposable syringe causes injuries to medical staff to different degrees due to occupational exposure of the medical staff while bringing infection and spreading diseases. In addition, general medical personnel can directly abandon the syringe in sharp ware receiver after the injection finishes, then send to the waste product station and handle, and the syringe needle that is stained with blood in this process has increased the pollution risk that blood leaks outward always to expose in the air, also probably causes the pollution in the waste product is handled moreover.
In response to this problem, spring-loaded anti-needle syringes are available on the market. After the injection is finished, the piston is continuously pushed, the spring mechanism is triggered, and the injection needle is rebounded to the syringe. Although effective in preventing needle stick injuries, there are a number of disadvantages:
1. false triggering is likely to occur. When the liquid medicine is sucked, the piston needs to be pushed to the zero scale line to exhaust air in the needle cylinder, so that the false triggering is easy to occur, the waste of medical equipment is caused, the time of medical workers is wasted, and the optimal injection time is even delayed;
2. when the spring rebounds the injection needle back to the needle cylinder, the vibration can be caused, and the injection needle is still in the body of a patient at the moment, so that the pain of the patient can be aggravated;
3. the spring type structure is complex, the manufacturing cost is high, and the burden of a patient is increased.
Disclosure of Invention
The invention aims to solve the technical problem of providing a telescopic anti-acupuncture injection needle which is safer for nursing staff and patients, reduces the pain and discomfort of the patients as much as possible and reduces the production cost aiming at the defects of the prior art.
The invention aims to solve the technical problem by the following technical scheme, and the invention provides a telescopic anti-acupuncture injection needle which comprises a needle seat, a needle handle and a needle tube, wherein a protective sleeve for protecting the needle tube is sleeved on the needle tube; the inner layer sliding sleeve, the plurality of middle layer sliding sleeves and the outer layer sliding sleeve are nested in sequence, and sliding clamping mechanisms are arranged between the needle handle and the inner layer sliding sleeve and between the two adjacent layers of sliding sleeves.
The technical problem to be solved by the invention can be further realized by the following technical scheme, in the telescopic anti-acupuncture injection needle, the following technical scheme is adopted: the sliding clamping mechanism comprises a sliding guide groove, the sliding guide groove is respectively arranged on the outer circumferential surface of the needle handle and the outer circumferential surface of the sliding sleeve positioned at the inner side in the adjacent sliding sleeve, the sliding guide groove is arranged along the axis direction of the needle tube, a locking anti-withdrawal boss for preventing the extended sliding sleeve from retracting to the rear end is arranged at the rear part of the sliding guide groove, and a limiting groove is formed between the locking anti-withdrawal boss and the tail end of the sliding guide groove;
each layer of sliding sleeve is provided with an elastic sheet hole along the axis direction of the needle tube, an elastic sheet is fixedly arranged in the elastic sheet hole, the movable end of the elastic sheet is provided with a clamping part which is inwards protruded and matched with the limiting groove in a clamping state, and the clamping part is slidably arranged in the sliding guide groove; when the front end of the elastic sheet of each layer of sliding sleeve props the initial limiting boss, the syringe needle head is completely exposed to form an injection station, and when each layer of sliding sleeve is completely extended and the clamping part is completely clamped into the limiting groove, the syringe needle head is completely covered to form a protection station.
The technical problem to be solved by the invention can be further realized by the following technical scheme, in the telescopic anti-acupuncture injection needle, the following technical scheme is adopted: the front end of the sliding guide groove is provided with an initial limiting boss for preventing the sliding sleeve from reversely sliding out due to misoperation.
The technical problem to be solved by the invention can be further realized by the following technical scheme, in the telescopic anti-acupuncture injection needle, the following technical scheme is adopted: the telescopic sliding sleeve assembly is divided into three layers, and a middle layer sliding sleeve is arranged between the inner layer sliding sleeve and the outer layer sliding sleeve.
The technical problem to be solved by the invention can be further realized by the following technical scheme, in the telescopic anti-acupuncture injection needle, the following technical scheme is adopted: the locking anti-withdrawal boss is provided with a limiting guide surface at one side facing the front end of the needle handle, so that a clamping part of the elastic sheet can slide into the limiting groove conveniently;
the joint portion of shell fragment is equipped with towards one side of needle handle rear end with spacing guide face complex joint guide face, joint portion is equipped with and prevents moving back spacing terminal surface with boss anti-spacing terminal surface complex shell fragment towards one side of needle handle front end, joint portion is equipped with towards the terminal one side of needle handle and locks spacing terminal surface of spacing terminal surface complex shell fragment locking with the spout.
The technical problem to be solved by the invention can be further realized by the following technical scheme, in the telescopic anti-acupuncture injection needle, the following technical scheme is adopted: the outward round of needle handle is equipped with annular handle wing, constitutes the sliding sleeve between handle wing and the needle handle and accomodates the chamber, and the front end of flexible sliding sleeve subassembly is accomodate in the sliding sleeve and accomodates the chamber.
The technical problem to be solved by the invention can be further realized by the following technical scheme, in the telescopic anti-acupuncture injection needle, the following technical scheme is adopted: the outer surface of the handle wing is provided with anti-skid grains.
The technical problem to be solved by the invention can be further realized by the following technical scheme, in the telescopic anti-acupuncture injection needle, the following technical scheme is adopted: and anti-skid grains are arranged on the outer circumferential surface of the outer-layer sliding sleeve.
The technical problem to be solved by the invention can be further realized by the following technical scheme, in the telescopic anti-acupuncture injection needle, the following technical scheme is adopted: the needle handle and the sliding guide grooves on each layer of sliding sleeves are symmetrically provided with two sliding guide grooves by taking the axis of the needle tube as an axis; the sliding guide grooves between the needle handle and the inner sliding sleeve and between the adjacent sliding sleeves are staggered in a cross shape by taking the axis of the needle tube as the center.
The technical problem to be solved by the invention can be further realized by the following technical scheme, in the telescopic anti-acupuncture injection needle, the following technical scheme is adopted: be equipped with initial protective sheath in the outside of handle wing, initial protective sheath is equipped with and accomodates the chamber with needle tubing complex needle tubing, it accomodates the chamber to be equipped with the lag at the front end in chamber to accomodate at the needle tubing, the needle tubing accomodates and is equipped with the annular corner boss with both transitional coupling between the chamber is accomodate to the lag, the internal diameter of corner boss is less than the external diameter of inlayer sliding sleeve, the front end of initial protective sheath be equipped with handle wing complex opening, the front end opening suit of initial protective sheath is realized the needle tubing at the end of needle handle until the corner boss card on the handle wing, flexible sliding sleeve subassembly and handle wing are whole to be accomodate wherein.
Compared with the prior art, the invention has the beneficial effects that:
the initial limiting boss is arranged, so that the sliding sleeve can be effectively prevented from reversely sliding out due to misoperation; the locking anti-retreat boss is arranged, so that the sliding sleeve is limited by the locking anti-retreat boss after being extended, the sliding sleeve is prevented from retracting towards the rear end, and the sliding sleeve is firmly clamped after sliding out and cannot slide again under the action of external force; the relative positions of the sliding sleeve at the initial position and the locking position on the needle cylinder are determined, the sliding sleeve cannot slide freely, the accidental triggering is not easy, the original habit of medical personnel is not changed, and the safety is improved;
after injection, the sliding sleeve is drawn out to completely shield the needle tube, so that vibration cannot be caused; the discomfort of the patient is not increased;
simple structure easily shaping, greatly reduced manufacturing cost, reduce patient's economic pressure.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a longitudinal cross-sectional view of FIG. 1;
FIG. 5 is a transverse cross-sectional view of FIG. 1;
FIG. 6 is a schematic view of a slide latch mechanism;
FIG. 7 is a schematic structural view of the protective station sliding sleeve after the protective station sliding sleeve completely slides out;
figure 8 is a schematic view of a structure with an initial protective sleeve.
In the figure: 1. the needle comprises a needle base, 2 a needle handle, 3 a needle tube, 4 a telescopic sliding sleeve assembly, 401 sliding guide grooves, 402 shrapnel, 403 clamping parts, 404 locking anti-withdrawing bosses, 405 initial limiting bosses, 406 limiting guide surfaces, 407 boss anti-withdrawing limiting end surfaces, 408 sliding groove locking limiting end surfaces, 409 clamping guide surfaces, 410 shrapnel anti-withdrawing limiting end surfaces, 411 shrapnel locking limiting end surfaces, 412 limiting grooves, 413 shrapnel holes, 5 handle wings, 501 sliding sleeve containing cavities, 6 initial protective sleeves, 7 outer sliding sleeves, 8 intermediate sliding sleeves and 9 inner sliding sleeves.
Detailed Description
The following further describes particular embodiments of the present invention to facilitate further understanding of the present invention by those skilled in the art, and does not constitute a limitation to the right thereof.
[ example 1 ]
Referring to fig. 1, with reference to fig. 2 and 3, a telescopic anti-acupuncture injection needle comprises a needle base 1, a needle handle 2 and a needle tube 3, wherein a protective sleeve for protecting the needle tube 3 is sleeved on the needle tube 3, a telescopic sliding sleeve assembly 4 which extends to cover the needle tube 3 is sleeved on the needle handle 2, the telescopic sliding sleeve assembly 4 comprises an inner layer sliding sleeve 9 sleeved on the needle handle 2 and an outer layer sliding sleeve 7 sleeved on the outermost layer, a plurality of intermediate layer sliding sleeves 8 are arranged between the inner layer sliding sleeve 9 and the outer layer sliding sleeve 7, and the embodiment is provided with one intermediate layer sliding sleeve 8; the inner layer sliding sleeve 9, the middle layer sliding sleeve 8 and the outer layer sliding sleeve 7 are nested in sequence, and a sliding clamping mechanism is arranged between the needle handle 2 and the inner layer sliding sleeve 9 and between the two adjacent layers of sliding sleeves. All sliding clamping mechanisms capable of achieving stretching and limiting locking in the prior art can be applied to the scheme, such as a telescopic mechanism of an umbrella handle, a telescopic mechanism of an antenna and the like.
Referring to fig. 4 to 6, the sliding clamping mechanism includes a sliding guide groove 401, the sliding guide groove 401 is respectively disposed on the outer circumferential surface of the needle handle 2 and the outer circumferential surface of the sliding sleeve located inside the adjacent sliding sleeve, the sliding guide groove 401 is disposed along the axial direction of the needle tube 3, a locking anti-retraction boss 404 for preventing the extended sliding sleeve from retracting to the rear end is disposed at the rear portion of the sliding guide groove 401, and a limit groove 412 is formed between the locking anti-retraction boss 404 and the end of the sliding guide groove 401;
each layer of sliding sleeve is provided with an elastic sheet hole 413 along the axial direction of the needle tube 3, an elastic sheet 402 is fixedly arranged in the elastic sheet hole 413, the movable end of the elastic sheet 402 is provided with a clamping part 403 which protrudes inwards and is used for being matched with the limiting groove 412 in a clamping state, and the clamping part 403 is slidably arranged in the sliding guide groove 401; when the front end of the elastic sheet 402 of each layer of sliding sleeve props against the initial limit boss 405, the syringe needle is completely exposed to form an injection station, and when each layer of sliding sleeve is completely extended and the clamping portion 403 is completely clamped into the limit groove 412, the syringe needle is completely covered to form a protection station. The sliding guide groove 401 plays a role in guiding the elastic sheet 402 in a sliding manner, and meanwhile, the sliding sleeve can be prevented from rotating in the circumferential direction, so that the stability of the telescopic sliding sleeve assembly 4 is improved.
An initial limit boss 405 for preventing the sliding sleeve from sliding out reversely by misoperation is arranged at the front end of the sliding guide groove 401.
The telescopic sliding sleeve assembly 4 is divided into three layers, and a middle layer sliding sleeve 8 is arranged between the inner layer sliding sleeve 9 and the outer layer sliding sleeve 7.
A limit guide surface 406 which is convenient for the clamping part 403 of the elastic sheet 402 to slide into the limit groove 412 is arranged on one side of the locking anti-retreat boss 404 facing the front end of the needle handle 2, a boss anti-retreat limit end surface 407 is arranged on one side of the locking anti-retreat boss 404 facing the rear end of the needle handle 2, and a chute locking limit end surface 408 is arranged on one side of the tail end of the sliding guide groove 401 facing the boss anti-retreat limit end surface 407;
the clamping portion 403 of the elastic sheet 402 is provided with a clamping guide surface 409 matched with the limit guide surface 406 on one side facing the rear end of the needle handle 2, an elastic sheet anti-retreat limit end surface 410 matched with the boss anti-retreat limit end surface 407 is provided on one side of the clamping portion 403 facing the front end of the needle handle 2, and an elastic sheet locking limit end surface 411 matched with the chute locking limit end surface 408 is provided on one side of the clamping portion 403 facing the tail end of the needle handle 2. In the initial state, the elastic piece anti-withdrawal limiting end face 410 is in contact with the initial limiting boss 405 to prevent the sliding sleeve from reversely sliding out under the condition of misoperation; after the injection is finished, the outside sliding sleeve is pulled towards the needle tube 3, the outer sliding sleeve 7 simultaneously drives the middle layer sliding sleeve 8 and the inner layer sliding sleeve 9 to be taken out together, the clamping portion 403 of the elastic sheet 402 slides in the sliding guide groove 401, when the clamping portion 403 is in contact with the locking anti-withdrawal boss 404, the limiting guide surface 406 is in butt joint with the clamping guide surface 409, the clamping portion 403 can be smoothly clamped into the limiting groove 412, the elastic sheet anti-withdrawal limiting end surface 410 of the clamping portion 403 is in butt joint with the boss anti-withdrawal limiting end surface 407, the elastic sheet locking limiting end surface 411 is in butt joint with the sliding groove locking limiting end surface 408, the clamping portion 403 is firmly locked and cannot be withdrawn, and the needle handle 2 cannot slip.
The outward round of needle handle 2 is equipped with annular handle wing 5, constitutes sliding sleeve between handle wing 5 and the needle handle 2 and accomodates the chamber 501, and the front end of flexible sliding sleeve subassembly 4 is accomodate in sliding sleeve accomodates the chamber 501.
The outer surface of the handle wing 5 is provided with anti-slip grains, so that the rotating friction force of the needle handle 2 is increased when the needle handle is in butt joint with an injector.
The outer circumference of the outer layer sliding sleeve 7 is provided with anti-skid grains, and the anti-skid grains can increase the friction force when being drawn out.
The needle handle 2 and the sliding guide grooves 401 on each layer of sliding sleeves are symmetrically provided with two parts by taking the axis of the needle tube 3 as an axis; the sliding guide grooves 401 between the needle handle 2 and the inner sliding sleeve 9 and between the adjacent sliding sleeves are in staggered distribution in a cross shape by taking the axis of the needle tube 3 as the center, so that the elastic sheets 402 and the sliding guide grooves 401 on each sliding sleeve are in staggered uniform distribution, the sliding guide grooves 401 between the adjacent sliding sleeves are in staggered distribution in a cross shape, the sliding trend can be dispersed, and the sliding sleeves can not freely slide out when being pulled by non-manpower.
Referring to fig. 8, be equipped with initial protective sheath 6 in the outside of handle wing 5, initial protective sheath 6 is equipped with and accomodates the chamber with 3 complex needle tubing 3, it accomodates the chamber to be equipped with the lag at the front end in chamber is accomodate to needle tubing 3, needle tubing 3 accomodates and is equipped with the annular corner boss with both transitional coupling between the chamber is accomodate to the lag, the internal diameter of corner boss is less than inner sliding sleeve 9's external diameter, the purpose is because the vibrations sliding sleeve slides forward in preventing the transportation, the front end of initial protective sheath 6 is equipped with the opening with 5 complex of handle wing, the front end opening suit of initial protective sheath 6 is on handle wing 5 until corner boss card is realized with needle tubing 3 at the end of needle handle 2, flexible sliding sleeve subassembly 4 and handle wing 5 are all accomodate wherein.
The elastic sheet 402 of the outer sliding sleeve 7 slightly turns outwards, so that the outer sliding sleeve 7 and the inner side wall of the handle wing 5 form interference fit, and the sliding sleeve is prevented from slipping towards the needle tube 3 when in an injection station.
The needle base 1, the needle handle 2, the handle wing 5 and the initial protective sleeve 6 are all made of elastic materials.
Referring to fig. 7, when each sliding sleeve is completely withdrawn and each clamping portion 403 is clamped into the limiting groove 412, the total length of the sliding sleeve is greater than the length of the needle tube 3.
When in use, the initial protective sleeve 6 is pulled out, the needle tube 3 is inserted into the liquid medicine bottle to suck the liquid medicine, and then the liquid medicine is injected to a patient; after the injection is finished, the outer sliding sleeve 7 is drawn out to drive the sliding sleeve to extend out, and due to the arrangement of the locking anti-withdrawal boss 404, the clamping part 403 of the elastic sheet 402 of each sliding sleeve is clamped into the limiting groove 412, and the sliding sleeve is fixed and can not be withdrawn at the moment, so that the needle tube 3 is completely protected, the safety of clinical operators is ensured, and the risk of being injured by a needle is prevented; in addition, the sliding guide groove 401 circumferentially positions the elastic sheet 402, so that the sliding sleeve cannot circumferentially rotate and is firmly fixed, the injection needle is prevented from being reused, and the injection needle is truly disposable; the telescopic anti-acupuncture injection needle has simple structure and convenient operation; the product volume is small, and the production cost is saved.
Claims (10)
1. The utility model provides a telescopic acupuncture needle of preventing, includes needle file, needle handle and needle tubing, the cover is equipped with the protective sheath that is used for protecting the needle tubing on the needle tubing, its characterized in that: the needle handle is sleeved with a telescopic sliding sleeve assembly which is used for coating the needle tube after being extended, the telescopic sliding sleeve assembly comprises an inner sliding sleeve sleeved on the needle handle and an outer sliding sleeve sleeved on the outermost layer, and a plurality of intermediate sliding sleeves are arranged between the inner sliding sleeve and the outer sliding sleeve; the inner layer sliding sleeve, the plurality of middle layer sliding sleeves and the outer layer sliding sleeve are nested in sequence, and sliding clamping mechanisms are arranged between the needle handle and the inner layer sliding sleeve and between the two adjacent layers of sliding sleeves.
2. The retractable needle-stick prevention injection needle according to claim 1, wherein: the sliding clamping mechanism comprises a sliding guide groove, the sliding guide groove is respectively arranged on the outer circumferential surface of the needle handle and the outer circumferential surface of the sliding sleeve positioned at the inner side in the adjacent sliding sleeve, the sliding guide groove is arranged along the axis direction of the needle tube, a locking anti-withdrawal boss for preventing the extended sliding sleeve from retracting to the rear end is arranged at the rear part of the sliding guide groove, and a limiting groove is formed between the locking anti-withdrawal boss and the tail end of the sliding guide groove;
each layer of sliding sleeve is provided with an elastic sheet hole along the axis direction of the needle tube, an elastic sheet is fixedly arranged in the elastic sheet hole, the movable end of the elastic sheet is provided with a clamping part which is inwards protruded and matched with the limiting groove in a clamping state, and the clamping part is slidably arranged in the sliding guide groove; when the front end of the elastic sheet of each layer of sliding sleeve props the initial limiting boss, the syringe needle head is completely exposed to form an injection station, and when each layer of sliding sleeve is completely extended and the clamping part is completely clamped into the limiting groove, the syringe needle head is completely covered to form a protection station.
3. The retractable needle-stick prevention injection needle according to claim 2, wherein: the front end of the sliding guide groove is provided with an initial limiting boss for preventing the sliding sleeve from reversely sliding out due to misoperation.
4. The retractable needle-stick prevention injection needle according to claim 1 or 2, wherein: the telescopic sliding sleeve assembly is divided into three layers, and a middle layer sliding sleeve is arranged between the inner layer sliding sleeve and the outer layer sliding sleeve.
5. The retractable needle-stick prevention injection needle according to claim 2, wherein: the locking anti-withdrawal boss is provided with a limiting guide surface at one side facing the front end of the needle handle, so that a clamping part of the elastic sheet can slide into the limiting groove conveniently;
the joint portion of shell fragment is equipped with towards one side of needle handle rear end with spacing guide face complex joint guide face, joint portion is equipped with and prevents moving back spacing terminal surface with boss anti-spacing terminal surface complex shell fragment towards one side of needle handle front end, joint portion is equipped with towards the terminal one side of needle handle and locks spacing terminal surface of spacing terminal surface complex shell fragment locking with the spout.
6. The retractable needle-stick prevention injection needle according to claim 2, wherein: the outward round of needle handle is equipped with annular handle wing, constitutes the sliding sleeve between handle wing and the needle handle and accomodates the chamber, and the front end of flexible sliding sleeve subassembly is accomodate in the sliding sleeve and accomodates the chamber.
7. The retractable needle-stick prevention injection needle according to claim 6, wherein: the outer surface of the handle wing is provided with anti-skid grains.
8. The retractable needle-stick prevention injection needle according to claim 1, wherein: and anti-skid grains are arranged on the outer circumferential surface of the outer-layer sliding sleeve.
9. The retractable needle-stick prevention injection needle according to claim 2, wherein: the needle handle and the sliding guide grooves on each layer of sliding sleeves are symmetrically provided with two sliding guide grooves by taking the axis of the needle tube as an axis; the sliding guide grooves between the needle handle and the inner sliding sleeve and between the adjacent sliding sleeves are staggered in a cross shape by taking the axis of the needle tube as the center.
10. The retractable needle-stick prevention injection needle according to claim 6, wherein: be equipped with initial protective sheath in the outside of handle wing, initial protective sheath is equipped with and accomodates the chamber with needle tubing complex needle tubing, it accomodates the chamber to be equipped with the lag at the front end in chamber to accomodate at the needle tubing, the needle tubing accomodates and is equipped with the annular corner boss with both transitional coupling between the chamber is accomodate to the lag, the internal diameter of corner boss is less than the external diameter of inlayer sliding sleeve, the front end of initial protective sheath be equipped with handle wing complex opening, the front end opening suit of initial protective sheath is realized the needle tubing at the end of needle handle until the corner boss card on the handle wing, flexible sliding sleeve subassembly and handle wing are whole to be accomodate wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418881.8A CN110917447A (en) | 2019-12-31 | 2019-12-31 | Telescopic anti-acupuncture injection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911418881.8A CN110917447A (en) | 2019-12-31 | 2019-12-31 | Telescopic anti-acupuncture injection needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110917447A true CN110917447A (en) | 2020-03-27 |
Family
ID=69854240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911418881.8A Pending CN110917447A (en) | 2019-12-31 | 2019-12-31 | Telescopic anti-acupuncture injection needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110917447A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115006651A (en) * | 2022-06-07 | 2022-09-06 | 常州医疗器材总厂股份有限公司 | Anti-needle stick safety device for injection device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100772057B1 (en) * | 2006-05-24 | 2007-10-31 | 박상윤 | Safe syringe and method of disusing the same |
| KR100800426B1 (en) * | 2007-03-14 | 2008-02-01 | 단국대학교 산학협력단 | Dental syringe needle having safety cover |
| CN101594899A (en) * | 2006-09-06 | 2009-12-02 | 特克法马许可公司 | Has the needle protection that blocks the protective position of living |
| WO2016062015A1 (en) * | 2014-10-23 | 2016-04-28 | 上海金塔医用器材有限公司 | Disposable anti-acupuncture venous transfusion needle |
| CN106215285A (en) * | 2016-08-11 | 2016-12-14 | 王淑娟 | Safety injector |
| CN206026803U (en) * | 2016-04-29 | 2017-03-22 | 上海市浦东医院 | Preventing pricking wound formula syringe needle |
| CN106581824A (en) * | 2016-08-16 | 2017-04-26 | 上海金塔医用器材有限公司 | Anti-acupuncture structure and syringe needle including same |
| KR20180044860A (en) * | 2018-03-19 | 2018-05-03 | 주식회사 엠케이 | Method for preventing needle sticking of syringe |
| US20180161515A1 (en) * | 2016-12-13 | 2018-06-14 | Becton, Dickinson And Company | Safety Needle Devices |
| CN211751545U (en) * | 2019-12-31 | 2020-10-27 | 江苏苏云医疗器材有限公司 | Telescopic anti-acupuncture injection needle |
-
2019
- 2019-12-31 CN CN201911418881.8A patent/CN110917447A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100772057B1 (en) * | 2006-05-24 | 2007-10-31 | 박상윤 | Safe syringe and method of disusing the same |
| CN101594899A (en) * | 2006-09-06 | 2009-12-02 | 特克法马许可公司 | Has the needle protection that blocks the protective position of living |
| KR100800426B1 (en) * | 2007-03-14 | 2008-02-01 | 단국대학교 산학협력단 | Dental syringe needle having safety cover |
| WO2016062015A1 (en) * | 2014-10-23 | 2016-04-28 | 上海金塔医用器材有限公司 | Disposable anti-acupuncture venous transfusion needle |
| CN206026803U (en) * | 2016-04-29 | 2017-03-22 | 上海市浦东医院 | Preventing pricking wound formula syringe needle |
| CN106215285A (en) * | 2016-08-11 | 2016-12-14 | 王淑娟 | Safety injector |
| CN106581824A (en) * | 2016-08-16 | 2017-04-26 | 上海金塔医用器材有限公司 | Anti-acupuncture structure and syringe needle including same |
| US20180161515A1 (en) * | 2016-12-13 | 2018-06-14 | Becton, Dickinson And Company | Safety Needle Devices |
| KR20180044860A (en) * | 2018-03-19 | 2018-05-03 | 주식회사 엠케이 | Method for preventing needle sticking of syringe |
| CN211751545U (en) * | 2019-12-31 | 2020-10-27 | 江苏苏云医疗器材有限公司 | Telescopic anti-acupuncture injection needle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115006651A (en) * | 2022-06-07 | 2022-09-06 | 常州医疗器材总厂股份有限公司 | Anti-needle stick safety device for injection device |
| CN115006651B (en) * | 2022-06-07 | 2024-04-16 | 常州医疗器材总厂股份有限公司 | Needle penetration prevention safety device for injection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5219338A (en) | Safety syringe with collapsible needle guard | |
| JP7333275B2 (en) | Grip accessories for manual injection devices | |
| US4840619A (en) | Syringe | |
| EP2316511B1 (en) | Spring launched needle safety cap | |
| US4874383A (en) | Syringe shield | |
| TWI449550B (en) | Automatic retractable safety syringe | |
| CN211751545U (en) | Telescopic anti-acupuncture injection needle | |
| US6808512B1 (en) | Safety syringe | |
| US5385557A (en) | Shielding device for a syringe needle | |
| AU2002350451A1 (en) | Spring launched needle safety clip | |
| WO2009127077A1 (en) | Pre-filled automatically retractable safe injector | |
| WO2024032686A1 (en) | Medicament delivery device with anti-needling function | |
| WO2009135439A1 (en) | Single-use self-destruction safety syringe without fluid residua | |
| JP2017515514A (en) | Safety blood collection needle | |
| CN110917447A (en) | Telescopic anti-acupuncture injection needle | |
| WO2024032688A1 (en) | Medicament delivery apparatus with automatic protection apparatus | |
| CN211066654U (en) | Push type safety protection mechanism of blood taking needle | |
| CN204233533U (en) | The disposable scalp acupuncture of a kind of safety | |
| CN211410490U (en) | Disposable automatic administration injection device | |
| IL282539A (en) | Ultra-low waste needle and syringe system that automatically and passively renders a needle safe during the injection process | |
| GB2400323A (en) | Safety syringe | |
| CN220175775U (en) | Pulling type protective structure for syringe needle | |
| AU2005284304B2 (en) | A syringe | |
| CN213466340U (en) | Safety needle capable of preventing needle from being injured by needle | |
| CN215231103U (en) | Prevent stabbing syringe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |