CN108744142B - Anti-needling safety indwelling needle - Google Patents
Anti-needling safety indwelling needle Download PDFInfo
- Publication number
- CN108744142B CN108744142B CN201810648267.XA CN201810648267A CN108744142B CN 108744142 B CN108744142 B CN 108744142B CN 201810648267 A CN201810648267 A CN 201810648267A CN 108744142 B CN108744142 B CN 108744142B
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- Prior art keywords
- needle
- needle tube
- elastic
- tube
- protective sleeve
- 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.)
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- 230000001681 protective effect Effects 0.000 claims abstract description 46
- 230000000903 blocking effect Effects 0.000 claims abstract description 25
- 239000008280 blood Substances 0.000 claims description 16
- 210000004369 blood Anatomy 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 208000012266 Needlestick injury Diseases 0.000 claims 4
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000001467 acupuncture Methods 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract description 2
- 229920001971 elastomer Polymers 0.000 abstract 2
- 239000000806 elastomer Substances 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000007493 shaping process Methods 0.000 description 3
- 238000002788 crimping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000001990 intravenous administration Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 206010073753 Fear of injection Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
Abstract
The utility model provides a prevent safe needle of keeping somewhere of acupuncture, including nook closing member and flexible pipe, the nook closing member includes needle tubing and needle file, the cover is equipped with the cartridge clip formula protection mechanism that activates the locking needle tubing head voluntarily when extracting the nook closing member on the needle tubing, cartridge clip formula protection mechanism passes through bulge on the needle tubing body and needle tubing locking, cartridge clip formula protection mechanism includes protective sleeve and elasticity clamp, the elasticity clamp comprises U-shaped elastomer and a pair of arm lock, the department of buckling of U-shaped elastomer is equipped with the through-hole that supplies the needle tubing to pass, be equipped with the blocking part that seals the needle tubing head on the arm lock, be equipped with interior step on the protective sleeve inner wall, be equipped with outer step and outer bulge on the protective sleeve outer wall, be equipped with elasticity clamp locking mechanical system between three-way pipe seat and the elasticity clamp. According to the invention, the elastic clamp is arranged outside the protective sleeve, so that no surface resistance of double-arm extrusion exists when the needle core is pulled, and the sanitation of the needle tube is ensured; the needle tube is firstly retracted in the protective sleeve, and then the head of the needle tube is locked, so that the stability of the head of the locking needle tube is ensured.
Description
Technical Field
The invention relates to a medical apparatus, in particular to an anti-needling safety indwelling needle.
Background
The intravenous needle can reduce pain and fear of needle injection caused by repeated intravenous puncture of children patients, is convenient for clinical medication, emergency medication for emergency and critical patients, reduces the workload of nurses, reduces the pain of children patients and the like, and is widely applied clinically. The traditional remaining needle is contaminated by blood of a patient in the process of using the back needle, medical staff is easy to be pricked by the needle when the needle is pulled away or cleaned and discarded, diseases are easy to be infected, and certain potential safety hazards exist. In clinical use, after the steel needle of the vein indwelling needle is successfully punctured and the soft cannula is smoothly guided into the vein indwelling of a patient, medical staff needs to withdraw the steel needle to the rear part of the indwelling needle until the steel needle is completely separated from the cannula holder, and the used steel needle is discarded in a sharp article disposal box after the steel needle is used.
Many keep somewhere the needle in prior art for solving the security problem that it exists, disclose multiple safety, prevent that the acupuncture from keeping somewhere the needle, these keep somewhere the needle and generally be equipped with the protection piece, block the syringe needle through the elasticity protection piece in the syringe needle withdrawal process, avoid the syringe needle to stab medical personnel, but these protection pieces are too complicated because of elasticity is not enough, the cost of manufacture is high.
The Chinese patent discloses a disposable needle-punching-preventing retention needle with application number 201520756765.8, which is characterized in that a spring piece is arranged in an outer sleeve, when the needle tube is arranged in the spring piece, the bulge on the spring piece falls into the concave part of the catheter seat, so that the spring piece and the catheter seat are fixed and locked. When the venipuncture is completed, the needle tube with the needle point is required to be pulled out, and when the needle tube with the needle point leaves the baffle plate on the spring piece, the baffle plate loses support, so that the U-shaped edge-covering elastic arm is started to have potential elastic force, the baffle plate is closed towards the center direction of the needle tube, and the baffle plate blocks the needle point, so that the puncture preventing effect is achieved. However, this structured indwelling needle has the following drawbacks: firstly, a contact point is extruded by a spring piece double arm on the surface of a steel needle, so that when the steel needle is pulled, the surface resistance is high, and a pull mark or burr is caused on the surface of the steel needle; second, the inside bump screens that use of overcoat for fixed and locking the spring leaf, the bump is in the inside design of overcoat and can have certain degree of difficulty to injection mold and shaping process, and the shaping article is difficult to the drawing of patterns, and if each bump screens is inaccurate because of the defect of shaping challenge, need use great external force just can pull out spring leaf and overcoat in the pipe seat together, and it is inconvenient to use, and the position of overcoat and spring leaf is fixed motionless with the bump screens, and after the spring arm starts, spring leaf and overcoat just separate with the pipe seat together, if the design is inaccurate, probably put the overcoat and stay in the pipe seat.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the needle-punching-preventing safe indwelling needle which is reasonable in design, convenient to use and simple in structure.
The invention aims to solve the technical problems by the following technical proposal, the invention is an anti-needling safe indwelling needle, which comprises a needle core and a flexible catheter, wherein the flexible catheter consists of a catheter pipeline, a three-way catheter seat and a positive pressure joint, the catheter pipeline is arranged on the three-way catheter seat, the three-way catheter seat is connected with the positive pressure joint through an extension pipe, the needle core comprises a needle tube and a needle seat, the needle tube penetrates out of the catheter pipeline through the three-way catheter seat,
the needle tube is sleeved with a clip type protection mechanism which automatically activates and locks the head of the needle tube when the needle core is pulled out, the clip type protection mechanism is locked with the needle tube through a bulge part on the tube body of the needle tube, and the clip type protection mechanism is driven to retract together when the needle tube is retracted;
the elastic clip type protection mechanism comprises a protection sleeve sleeved on the needle tube and an elastic clip for locking the head of the needle tube, the elastic clip is arranged outside the protection sleeve and consists of a U-shaped elastic body and a pair of clip arms, the clip arms are symmetrically arranged on two sides of the U-shaped elastic body and are connected with the U-shaped elastic body into a whole, a through hole for the needle tube to pass through is formed in the bent part of the U-shaped elastic body, a blocking part for sealing the head of the needle tube is arranged on the clip arms, an inner step matched with the bulge part on the needle tube is arranged on the inner wall of the protection sleeve, the inner step is arranged behind the bulge part of the needle tube, the distance from the bulge part to the needle tip of the needle tube is smaller than or equal to the distance from the inner step to the front end of the protection sleeve, an outer step matched with the blocking part of the elastic clip and an outer bulge are arranged on the outer wall of the protection sleeve, the outer bulge and the outer step are arranged on the inner side of the elastic clip, the distance from the outer step to the front end of the protection sleeve is smaller than the distance from the elastic clip to the blocking part, and the elastic clip locking mechanism is arranged between the three-way guide tube seat and the elastic clip;
in the assembled state, the clamping arms and the blocking parts of the elastic clamp are unfolded on the protective sleeve, the front port of the protective sleeve is in an open state, and at the moment, the elastic clamp is locked with the three-way catheter seat;
in the process of withdrawing the needle tube, when the bulge part of the needle tube withdraws to the inner step of the protective sleeve, the protective sleeve is driven to withdraw together; the needle tube continues to withdraw, when the through hole of the elastic clamp touches the outer step on the protective sleeve, the expanded elastic clamp arms are closed, the blocking part at the front part of the elastic clamp is closed, and the front port of the protective sleeve is blocked, so that the head of the needle tube is automatically locked in the protective sleeve to prevent needling, and meanwhile, the elastic clamp locking mechanism is unlocked, the needle tube continues to withdraw, and the locked needle core is taken away from the soft catheter together with the elastic clamp and the protective sleeve.
The technical problem to be solved by the invention can be also realized by the following technical scheme that one side of the needle tube is provided with a blood return tube body arranged along the axis of the needle tube, two ends of the blood return tube body are communicated with the needle tube, and the blood return tube body is in a capillary shape.
The technical problem to be solved by the invention can also be achieved by the following technical scheme that the elastic clamp locking mechanism comprises a limiting hole arranged on the three-way catheter seat and an elastic bulge matched with the limiting hole, wherein the elastic bulge is arranged on a clamping arm of the elastic clamp, and the elastic bulge is a semicircular arc body arched outwards.
The technical problem to be solved by the invention can also be achieved by the following technical scheme that the inner step is formed by two sections of tube bodies with different inner diameters of the protective sleeve, the inner diameter of the front section of tube body of the protective sleeve is larger than the maximum outer diameter of the bulge part of the needle tube, and the inner diameter of the rear section of tube body of the protective sleeve is smaller than the maximum outer diameter of the bulge part of the needle tube and larger than the outer diameter of the needle tube.
The technical problem to be solved by the invention can be also realized by the following technical scheme that the bulge part of the needle tube is an bulge part formed by crimping and provided with concave two sides.
The technical problem to be solved by the invention can be further solved by the following technical scheme that the elastic bulge and the blocking part of the clamping arm are of an integrated structure formed by bending a plurality of parts after the clamping arm extends forwards.
Compared with the prior art, the elastic clamp is arranged outside the protective sleeve, and is expanded on the protective sleeve during assembly, so that the surface resistance of double-arm extrusion is avoided when the needle core is pulled, and the elastic clamp is not directly contacted with the surface of the needle tube, thereby ensuring the sanitation of the needle tube; the needle tube is firstly received in the protective sleeve, then the tube orifice of the protective sleeve is closed so as to lock the head of the needle tube, and then the elastic clamp and the protective sleeve are separated from the three-way catheter seat together with the needle tube, so that the needle tube is not easy to expose, the protective effect is better, in addition, the elastic clamp cannot be directly contacted with the surface of the needle tube in the closing process, the sanitation of the needle tube is further ensured, and the stability of locking the head of the needle tube is also ensured; the invention adopts the step mode to fix and lock, has simple design, convenient positioning, reasonable design, simple structure, convenient use and good protection effect.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the present invention after the needle tube is withdrawn;
FIG. 3 is a schematic view of the structure of a needle cannula;
fig. 4 is a partial enlarged view of fig. 3.
Detailed Description
Specific embodiments of the invention will be further described below with reference to the accompanying drawings, in order to facilitate a further understanding of the invention by those skilled in the art, without limiting the scope of the claims thereto.
Referring to fig. 1-4, an anti-needling safety indwelling needle comprises a needle core and a flexible catheter, wherein the flexible catheter consists of a catheter pipeline, a three-way catheter seat 1 and a positive pressure joint, the catheter pipeline is arranged on the three-way catheter seat 1, the three-way catheter seat 1 is connected with the positive pressure joint through an extension pipe, the needle core comprises a needle tube 7 and a needle seat, the needle tube 7 penetrates out of the catheter pipeline through the three-way catheter seat 1,
the needle tube 7 is sleeved with a clip type protection mechanism which automatically activates and locks the head of the needle tube 7 when the needle core is pulled out, the clip type protection mechanism is locked with the needle tube 7 through a bulge 11 on the tube body of the needle tube 7, and the clip type protection mechanism is driven to retract together when the needle tube 7 retracts;
the elastic clip type protection mechanism comprises a protection sleeve 6 sleeved on a needle tube 7 and an elastic clip for locking the head of the needle tube 7, the elastic clip 5 is arranged outside the protection sleeve 6, the elastic clip 5 consists of a U-shaped elastic body and a pair of clip arms, the clip arms are symmetrically arranged on two sides of the U-shaped elastic body and are connected with the U-shaped elastic body into a whole, a through hole for the needle tube 7 to pass through is formed in the bending part of the U-shaped elastic body, a blocking part 3 for blocking the head of the needle tube 7 is arranged on the clip arms, an inner step 8 matched with a bulge 11 on the needle tube 7 is arranged on the inner wall of the protection sleeve 6, the inner step 8 is arranged behind the bulge 11 of the needle tube 7, the distance from the bulge 11 to the needle tip of the needle tube 7 is smaller than or equal to the distance from the inner step 8 to the front end of the protection sleeve 6, an outer step 9 matched with the through hole on the elastic clip 5 and a blocking part 3 of the elastic clip 5 are arranged on the outer wall of the protection sleeve 6, the outer step 10 and the outer step 9 are arranged on the inner side of the elastic clip 5, the blocking part 3 is matched with the blocking part of the elastic clip 5, the inner step 9 is arranged between the inner side of the elastic clip 7 and the inner step and the blocking part is smaller than the distance between the elastic clip seat and the elastic clip mechanism and the elastic clip tube;
in the assembled state, the clamping arms and the blocking parts 3 of the elastic clamp 5 are unfolded on the protective sleeve 6, the front port of the protective sleeve 6 is in an open state, the elastic clamp is not in direct contact with the surface of the needle tube, the needle tube is arranged in the protective sleeve 6, and at the moment, the elastic clamp is locked with the three-way catheter seat;
in the process of withdrawing the needle tube 7, when the bulge 11 of the needle tube 7 withdraws to the inner step 8 of the protective sleeve 6, the protective sleeve 6 is driven to withdraw together; the needle tube 7 continues to withdraw, when the through hole of the elastic clip 5 hits the outer step 9 on the protective sleeve 6, the length of the protective sleeve 6 is insufficient to support the blocking part 3 of the elastic clip 5, the pre-loaded pressure before is released, the clip arms of the expanded elastic clip 5 are restored to the original shape and are close, the blocking part 3 at the front part of the elastic clip 5 is embraced, the front port of the protective sleeve 6 is locked, and thus the head of the needle tube 7 is automatically locked in the protective sleeve 6 to prevent needling, meanwhile, the elastic clip locking mechanism is unlocked, the needle tube 7 continues to withdraw, and the unlocked elastic clip 5 is taken away from the three-way catheter seat along with the protective sleeve 6 and the needle core.
A blood return tube body arranged along the axis of the needle tube 7 is arranged at one side of the needle tube 7, two ends of the blood return tube body are communicated with the needle tube 7, and the blood return tube body is in a capillary shape; the blood return tube body is arranged at the rear of the needle tube bulge 11, so that the matching of the elastic clamp locking mechanism and the needle tube body is not influenced, a concave groove for placing the blood return tube body is arranged on the side wall of the needle tube body opposite to the blood return tube body, the blood return tube body is arranged in the concave groove and is connected with the groove wall of the concave groove, and the blood return tube body and the needle tube body are integrated, so that the blood return tube body is hidden in the needle tube body, and the use of the needle tube body is not influenced.
The elastic clamp locking mechanism comprises a limiting hole 2 formed in the three-way catheter seat and an elastic bulge 4 matched with the limiting hole 2, the elastic bulge 4 is arranged on a clamping arm of the elastic clamp 5, the elastic bulge 4 is a semicircular arc body arched outwards, the whole process can be automatically realized, the use of large external force is not needed, time and labor are saved, and the stability of the device is strong.
The inner step 8 is formed by two sections of pipe bodies with different inner diameters on the protective sleeve 7, the inner diameter of the pipe body at the front section of the protective sleeve 6 is larger than the maximum outer diameter of the needle tube bulge 11, and the inner diameter of the pipe body at the rear section of the protective sleeve 6 is smaller than the maximum outer diameter of the needle tube bulge 11 and larger than the outer diameter of the needle tube 7.
The bulge 11 of the needle tube 7 is an bulge with two concave sides formed by crimping; the elastic bulge 4 and the blocking part 3 of the clamping arm are of an integrated structure formed by bending a plurality of parts after the clamping arm extends forwards, so that the assembly and the release of the cartridge clip type protection mechanism are facilitated, the problem that a spring piece blocking piece must be opened to smoothly install the spring piece blocking piece onto a needle tube when the needle-pricking prevention retaining needle in the prior art is assembled is solved, and time and effort are saved during the assembly.
Claims (5)
1. The utility model provides a prevent needle puncture safe type and keep somewhere needle, includes nook closing member and hose, hose constitute by pipe pipeline, tee bend pipe seat and malleation joint, the pipe pipeline is adorned on tee bend pipe seat, is connected through the extension pipe between tee bend pipe seat and the malleation joint, the nook closing member include needle tubing and needle file, the needle tubing is worn out from the pipe pipeline through tee bend pipe seat, its characterized in that:
the needle tube is sleeved with a clip type protection mechanism which automatically activates and locks the head of the needle tube when the needle core is pulled out, the clip type protection mechanism is locked with the needle tube through a bulge part on the tube body of the needle tube, and the clip type protection mechanism is driven to retract together when the needle tube is retracted;
the elastic clip type protection mechanism comprises a protection sleeve sleeved on the needle tube and an elastic clip for locking the head of the needle tube, the elastic clip is arranged outside the protection sleeve and consists of a U-shaped elastic body and a pair of clip arms, the clip arms are symmetrically arranged on two sides of the U-shaped elastic body and are connected with the U-shaped elastic body into a whole, a through hole for the needle tube to pass through is formed in the bent part of the U-shaped elastic body, a blocking part for sealing the head of the needle tube is arranged on the clip arms, an inner step matched with the bulge part on the needle tube is arranged on the inner wall of the protection sleeve, the inner step is arranged behind the bulge part of the needle tube, the distance from the bulge part to the needle tip of the needle tube is smaller than or equal to the distance from the inner step to the front end of the protection sleeve, an outer step matched with the blocking part of the elastic clip and an outer bulge are arranged on the outer wall of the protection sleeve, the outer bulge and the outer step are arranged on the inner side of the elastic clip, the distance from the outer step to the front end of the protection sleeve is smaller than the distance from the elastic clip to the blocking part, and the elastic clip locking mechanism is arranged between the three-way guide tube seat and the elastic clip;
in the assembled state, the clamping arms and the blocking parts of the elastic clamp are unfolded on the protective sleeve, the front port of the protective sleeve is in an open state, and at the moment, the elastic clamp is locked with the three-way catheter seat;
in the process of withdrawing the needle tube, when the bulge part of the needle tube withdraws to the inner step of the protective sleeve, the protective sleeve is driven to withdraw together; the needle tube continues to withdraw, when the through hole of the elastic clamp touches the outer step on the protective sleeve, the expanded elastic clamp arms are closed, the blocking part at the front part of the elastic clamp is closed, and the front port of the protective sleeve is blocked, so that the head of the needle tube is automatically locked in the protective sleeve to prevent needling, meanwhile, the locking mechanism of the elastic clamp is unlocked, the needle tube continues to withdraw, and the unlocked elastic clamp is taken away from the soft catheter together with the protective sleeve and the needle core;
a blood return tube body arranged along the axis of the needle tube is arranged at one side of the needle tube, and two ends of the blood return tube body are communicated with the needle tube;
the blood return tube body is in a capillary shape;
the elastic clamp locking mechanism comprises a limiting hole arranged on the three-way catheter seat and an elastic bulge matched with the limiting hole, and the elastic bulge is arranged on a clamping arm of the elastic clamp.
2. The needle-stick resistant safety indwelling needle according to claim 1, wherein: the elastic bulge is a semicircular arc body which is arched outwards.
3. The needle-stick resistant safety indwelling needle according to claim 1, wherein: the inner step is formed by connecting two sections of pipe bodies with different inner diameters of the protective sleeve, the inner diameter of the pipe body at the front section of the protective sleeve is larger than the maximum outer diameter of the uplift part of the needle tube, and the inner diameter of the pipe body at the rear section of the protective sleeve is smaller than the maximum outer diameter of the uplift part of the needle tube and larger than the outer diameter of the needle tube.
4. The needle-stick resistant safety indwelling needle according to claim 1, wherein: the bulge of the needle tube is a bulge which is formed by compression joint and is concave at two sides.
5. The needle-stick resistant safety indwelling needle according to claim 1, wherein: the elastic bulge and the blocking part of the clamping arm are of an integrated structure formed by bending the clamping arm at a plurality of positions after extending forwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810648267.XA CN108744142B (en) | 2018-06-22 | 2018-06-22 | Anti-needling safety indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810648267.XA CN108744142B (en) | 2018-06-22 | 2018-06-22 | Anti-needling safety indwelling needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108744142A CN108744142A (en) | 2018-11-06 |
| CN108744142B true CN108744142B (en) | 2024-02-27 |
Family
ID=63976484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810648267.XA Active CN108744142B (en) | 2018-06-22 | 2018-06-22 | Anti-needling safety indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108744142B (en) |
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| CN103285449A (en) * | 2012-09-04 | 2013-09-11 | 上海普益医疗器械有限公司 | Puncture-proof indwelling needle |
| CN104271186A (en) * | 2012-04-27 | 2015-01-07 | 威格米德公司 | Needle tip shielding device and fixing arrangement |
| WO2015092041A1 (en) * | 2013-12-20 | 2015-06-25 | B. Braun Melsungen Ag | Safety needle assemblies and related methods |
| CN204709530U (en) * | 2015-05-21 | 2015-10-21 | 广东爱迪医疗科技有限公司 | Disposable safe type remaining needle |
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| CN204972523U (en) * | 2015-08-17 | 2016-01-20 | 广东百合医疗科技股份有限公司 | Y type safety indwelling needle |
| CN209253816U (en) * | 2018-06-22 | 2019-08-16 | 江苏苏云医疗器材有限公司 | A kind of anti-safety of acupuncture type remaining needle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3238770A4 (en) * | 2014-11-21 | 2019-02-20 | Nipro Corporation | Indwelling needle assembly |
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2018
- 2018-06-22 CN CN201810648267.XA patent/CN108744142B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427731A (en) * | 2000-11-21 | 2003-07-02 | 贝克顿迪肯森公司 | Catheter and introducer needle assembly with needle shield |
| CN104271186A (en) * | 2012-04-27 | 2015-01-07 | 威格米德公司 | Needle tip shielding device and fixing arrangement |
| CN103285449A (en) * | 2012-09-04 | 2013-09-11 | 上海普益医疗器械有限公司 | Puncture-proof indwelling needle |
| CN203154451U (en) * | 2013-04-12 | 2013-08-28 | 王国强 | Y-shaped puncture-proof indwelling needle |
| WO2015092041A1 (en) * | 2013-12-20 | 2015-06-25 | B. Braun Melsungen Ag | Safety needle assemblies and related methods |
| CN204709530U (en) * | 2015-05-21 | 2015-10-21 | 广东爱迪医疗科技有限公司 | Disposable safe type remaining needle |
| CN204709529U (en) * | 2015-05-21 | 2015-10-21 | 广东爱迪医疗科技有限公司 | One-off card button anti-pricking wound type remaining needle |
| CN204972523U (en) * | 2015-08-17 | 2016-01-20 | 广东百合医疗科技股份有限公司 | Y type safety indwelling needle |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108744142A (en) | 2018-11-06 |
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