CN111248984B - Cricothyroid membrane puncture needle - Google Patents
Cricothyroid membrane puncture needle Download PDFInfo
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- CN111248984B CN111248984B CN202010246546.0A CN202010246546A CN111248984B CN 111248984 B CN111248984 B CN 111248984B CN 202010246546 A CN202010246546 A CN 202010246546A CN 111248984 B CN111248984 B CN 111248984B
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- puncture needle
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- needle body
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- 239000012528 membrane Substances 0.000 title claims abstract description 30
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 40
- 239000002344 surface layer Substances 0.000 claims abstract description 28
- 239000007769 metal material Substances 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 12
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims description 12
- 238000004321 preservation Methods 0.000 claims description 10
- 238000009792 diffusion process Methods 0.000 claims description 9
- 238000007747 plating Methods 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 229910001154 Pr alloy Inorganic materials 0.000 claims description 5
- LELIWVXTBSKMRB-UHFFFAOYSA-N copper praseodymium Chemical compound [Cu].[Pr] LELIWVXTBSKMRB-UHFFFAOYSA-N 0.000 claims description 5
- 239000007772 electrode material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 241000588724 Escherichia coli Species 0.000 abstract description 6
- 241000191967 Staphylococcus aureus Species 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 3
- 210000004379 membrane Anatomy 0.000 description 25
- 230000000845 anti-microbial effect Effects 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
- 239000002131 composite material Substances 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 210000003685 cricoid cartilage Anatomy 0.000 description 3
- 210000000534 thyroid cartilage Anatomy 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 2
- 210000002808 connective tissue Anatomy 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000011534 incubation Methods 0.000 description 2
- 210000003041 ligament Anatomy 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000035143 Bacterial infection Diseases 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010062717 Increased upper airway secretion Diseases 0.000 description 1
- 206010059639 Laryngeal obstruction Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001363 autoimmune Effects 0.000 description 1
- 208000022362 bacterial infectious disease Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 210000000867 larynx Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 208000026435 phlegm Diseases 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229940126585 therapeutic drug Drugs 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/08—Materials for coatings
- A61L31/082—Inorganic materials
- A61L31/088—Other specific inorganic materials not covered by A61L31/084 or A61L31/086
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L31/16—Biologically active materials, e.g. therapeutic substances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3454—Details of tips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/10—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing inorganic materials
- A61L2300/102—Metals or metal compounds, e.g. salts such as bicarbonates, carbonates, oxides, zeolites, silicates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Chemical & Material Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pathology (AREA)
- Inorganic Chemistry (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Medicinal Chemistry (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Discloses a cricothyroid membrane puncture needle, which comprises a puncture needle body and an outer sleeve, wherein the puncture needle body is made of a metal material and further comprises a structural inner layer and an antibacterial surface layer. The invention endows the cricothyroid membrane puncture needle with better antibacterial function by forming the antibacterial surface layer with specific composition on the puncture needle body; especially has strong antibacterial effect on Escherichia coli and Staphylococcus aureus.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a cricothyroid membrane puncture device; and more particularly, to a cricothyroid needle for use in a cricothyroid procedure.
Background
The cricothyroid membrane is located between the cricoid cartilage and the thyroid cartilage, is a conical elastic fibrous connective tissue membrane, and is a part of the elastic cone in front of the elastic diaphragm of the larynx. The laryngeal elastic membrane is located on the deep surface of the mucous membrane of the laryngeal cavity, belongs to a connective tissue membrane containing elastic fibers, is divided into an upper part and a lower part by a laryngeal chamber, the upper part is called a square membrane, the lower part is called an elastic cone, and the elastic cone starts from the lower part of the inner surface of the horn of the thyroid cartilage and is attached to the inner side of the upper edge of the cricoid cartilage in a fan shape downwards. The anterior middle part of the elastic cone is attached between the lower edge of the thyroid cartilage and the upper edge of the cricoid cartilage arch and is called the cricothyroid membrane, the thickened part at the center is called the middle ligament of the cricothyroid membrane, and when the cricothyroid membrane incision or puncture is performed, the cricothyroid membrane and the middle ligament of the cricothyroid membrane are mainly incised.
Thyrocricocentesis or incision is a commonly used first-aid technique in otolaryngology and is widely applied clinically; when acute laryngeal obstruction occurs, it can establish an artificial respiration channel in time and supply oxygen, suck phlegm or intratracheal therapeutic drugs and the like through the channel.
However, since there is no special puncture device clinically, it has been reported in the past that a multi-purpose thick needle is used for puncturing, and after puncturing, fixation and long-term retention cannot be performed, and the puncturing and retention depth is not easy to control, and the trachea posterior wall and the esophagus anterior wall are easily damaged. In addition, the operation is required to be carried out by a doctor specialized in otolaryngology, and the first-line clinical rescue of a patient is easy to delay the rescue opportunity, so that the clinical application is relatively limited. More importantly, the puncture needle is an all-metal product and belongs to an invasive treatment means, and if the disinfection measure is not in place, the treatment environment is not clean, or the autoimmune system of a patient is incomplete, the possibility of bacterial infection caused by germ transmission exists.
Chinese patent application CN107582206A discloses a puncture needle comprising an outer cannula; the outer sleeve has an inner structure and an outer structure, the inner layer is made of medical stainless steel or medical alloy materials, the surface of the outer sleeve is wrapped with a novel antibacterial film and a polyethylene-vinyl acetate film composite film, the antibacterial composite film is replaced again when used every time, the antibacterial composite film is replaced when used every time, the possibility of cross infection is reduced, and bacteria are still easily left between the inner structure and the surface.
Therefore, except for the conventional clinical instrument disinfection process and the wrapping antibacterial composite membrane which are usually adopted in hospitals, the antibacterial performance of the puncture needle device needs to be endowed from the improvement of the puncture needle device, and the puncture needle device is simple, convenient and quick in disinfection and can still meet the clinical requirements after being repeatedly used for many times.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a cricothyroid needle for use in a cricothyroid puncture.
In order to achieve the purpose, on one hand, the invention adopts the following technical scheme: a cricothyroid membrane puncture needle comprises a puncture needle body and an outer sleeve, wherein two ends of the outer sleeve are provided with openings and are divided into a front part and a rear part by a fixed wing, the puncture needle body comprises a needle point and a needle rod, and the puncture needle body can penetrate through the front end opening of the outer sleeve and enable the needle point to protrude out of the front end opening; it is characterized in that the puncture needle body is made of metal material and further comprises a structural inner layer and an antibacterial surface layer.
The cricothyroid membrane puncture needle is characterized in that the length of the puncture needle body is 24-36 cm.
Preferably, the puncture needle body has a length of 26-34 cm.
The cricothyroid membrane puncture needle is characterized in that the length of the needle point is 2-6 cm.
Preferably, the length of the needle tip is 3-5 cm.
The cricothyroid membrane puncture needle is characterized in that the diameter of the needle rod is 2.5-4.5 cm.
Preferably, the needle shaft has a diameter of 3-4 cm.
The cricothyroid membrane puncture needle is characterized in that the metal material is selected from stainless steel materials.
Preferably, the metallic material is selected from 440C stainless steel.
The cricothyroid membrane puncture needle according to the present invention is characterized in that the antimicrobial surface layer contains copper.
Preferably, the antimicrobial surface layer contains more than or equal to 2.7 wt% copper; more preferably, the antimicrobial surface layer contains 2.7-3.3 wt% copper.
The cricothyroid membrane puncture needle according to the present invention is characterized in that the antibacterial surface layer further contains praseodymium.
Preferably, the antibacterial surface layer contains 0.22-0.26 wt% of praseodymium.
The cricothyroid membrane puncture needle is characterized in that the thickness of the antibacterial surface layer is 15-20 μm.
Preferably, the thickness of the antibacterial surface layer is 16-19 μm.
The cricothyroid membrane puncture needle is characterized in that the antibacterial surface layer is obtained by a dual-glow diffusion plating method; wherein, the source electrode material is selected from a copper praseodymium alloy.
Preferably, the source material is selected from the group consisting of copper and praseodymium in a mass ratio of 8: 2, copper praseodymium alloy.
The cricothyroid membrane puncture needle is characterized in that the technological parameters of the dual-glow diffusion plating method are as follows: ar pressure is 30 Pa; the source voltage is 950V; the cathode voltage is 450V; the distance between the cathode plates is 15 mm; the heat preservation temperature is 1000 ℃; the heat preservation time is 3.5-6.5 h.
Preferably, the process parameters of the dual-glow diffusion plating method are as follows: ar pressure is 30 Pa; the source voltage is 950V; the cathode voltage is 450V; the distance between the cathode plates is 15 mm; the heat preservation temperature is 1000 ℃; the heat preservation time is 4-6 h.
Compared with the prior art, the puncture needle device is endowed with antibacterial performance from the improvement of the puncture needle device, is simple, convenient and quick in disinfection, and can still meet clinical requirements after repeated use.
Without wishing to be bound by any theory, the invention imparts a better antibacterial action to the cricothyroid needle by forming an antibacterial surface layer of specific composition on the needle body; especially has strong antibacterial effect (the antibacterial rate is more than or equal to 99%) against escherichia coli and staphylococcus aureus.
Detailed Description
The following examples are merely illustrative of embodiments of the present invention and do not limit the scope of the invention.
Example 1
A cricothyroid membrane puncture needle comprises a puncture needle body and an outer sleeve, wherein two ends of the outer sleeve are provided with openings and are divided into a front part and a rear part by a fixed wing, the puncture needle body comprises a needle point and a needle rod, and the puncture needle body can penetrate through the front end opening of the outer sleeve and enable the needle point to protrude out of the front end opening; the puncture needle body is made of a metal material and further has a structural inner layer and an antibacterial surface layer. The length of the puncture needle body is 30 cm; the length of the needle point is 4 cm; the diameter of the needle rod is 3.5 cm; the metal material is selected from 440C stainless steel. The antimicrobial surface layer contains 2.7 wt% copper and 0.22 wt% praseodymium. The thickness of the antibacterial surface layer is 16 μm. The antibacterial surface layer is obtained by a dual-glow diffusion plating method; wherein the source electrode material is selected from the group consisting of copper and praseodymium in a mass ratio of 8: 2, copper praseodymium alloy. The technological parameters of the dual-glow diffusion plating method are as follows: ar pressure is 30 Pa; the source voltage is 950V; the cathode voltage is 450V; the distance between the cathode plates is 15 mm; the heat preservation temperature is 1000 ℃; the heat preservation time is 4 h.
Example 2
A cricothyroid membrane puncture needle comprises a puncture needle body and an outer sleeve, wherein two ends of the outer sleeve are provided with openings and are divided into a front part and a rear part by a fixed wing, the puncture needle body comprises a needle point and a needle rod, and the puncture needle body can penetrate through the front end opening of the outer sleeve and enable the needle point to protrude out of the front end opening; the puncture needle body is made of a metal material and further has a structural inner layer and an antibacterial surface layer. The length of the puncture needle body is 30 cm; the length of the needle point is 4 cm; the diameter of the needle rod is 3.5 cm; the metal material is selected from 440C stainless steel. The antimicrobial surface layer contains 3.3 wt% copper and 0.26 wt% praseodymium. The thickness of the antibacterial surface layer is 19 μm. The antibacterial surface layer is obtained by a dual-glow diffusion plating method; wherein the source electrode material is selected from the group consisting of copper and praseodymium in a mass ratio of 8: 2, copper praseodymium alloy. The technological parameters of the dual-glow diffusion plating method are as follows: ar pressure is 30 Pa; the source voltage is 950V; the cathode voltage is 450V; the distance between the cathode plates is 15 mm; the heat preservation temperature is 1000 ℃; the heat preservation time is 6 h.
Comparative example 1
The other conditions were the same as in example 1, except that the incubation time was 2 hours. The resulting antimicrobial surface layer contained 2.3 wt% copper and 0.17 wt% praseodymium; the thickness was 13 μm.
Comparative example 2
The other conditions were the same as in example 1, except that the incubation time was 10 hours. The resulting antimicrobial surface layer contained 3.9 wt% copper and 0.33 wt% praseodymium; the thickness was 24 μm.
Test of antibacterial Property
The antibacterial performance test is carried out according to the standard antibacterial test method, and the test bacterial liquid is the concentration (5.0-10.0) multiplied by 105The bacterial solutions of cfu/ml of Escherichia coli and Staphylococcus aureus were prepared by contacting the puncture needles of examples 1-2 and comparative examples 1-2 with the control puncture needle (made of 440C stainless steel, but not including an antibacterial surface layer) for 24 hours, diluting the solution appropriately, coating the diluted solution on a plate, incubating the diluted solution at 37 ℃ for 24 hours, calculating the viable cell count A of the puncture needles of examples 1-2 and comparative examples 1-2 and the viable cell count B of the control puncture needle according to GB 4789.2-2016, and calculating the antibacterial ratio (%) as (A-B)/Ax 100%.
The results are shown in Table 1.
TABLE 1
As a result, the cricothyroid membrane puncture needle of examples 1-2 of the present invention has a strong antibacterial effect against both Escherichia coli and Staphylococcus aureus (99% or more) as compared with comparative examples 1-2. As the copper and praseodymium contents decreased, it was observed that comparative example 1 had no antibacterial effect (< 90%) against E.coli, but had a general antibacterial effect (< 99% and > 90%) against Staphylococcus aureus. On the other hand, although comparative example 2 was observed to have a strong antibacterial effect against escherichia coli as the copper and praseodymium contents increased, it had only a general antibacterial effect against staphylococcus aureus, but rather decreased.
Without wishing to be bound by any theory, the present invention imparts a superior antimicrobial effect to the cricothyroid needle by forming an antimicrobial surface layer of a specific composition on the needle body.
It should be understood that the detailed description of the invention is merely illustrative of the spirit and principles of the invention and is not intended to limit the scope of the invention. Furthermore, it should be understood that various changes, substitutions, deletions, modifications or adjustments may be made by those skilled in the art after reading the disclosure of the present invention, and such equivalents are also within the scope of the invention as defined in the appended claims.
Claims (4)
1. A cricothyroid membrane puncture needle comprises a puncture needle body and an outer sleeve, wherein two ends of the outer sleeve are provided with openings and are divided into a front part and a rear part by a fixed wing, the puncture needle body comprises a needle point and a needle rod, and the puncture needle body can penetrate through the front end opening of the outer sleeve and enable the needle point to protrude out of the front end opening; the puncture needle body is made of metal materials and further comprises a structural inner layer and an antibacterial surface layer; the metal material is selected from stainless steel materials, and is characterized in that the antibacterial surface layer contains 2.7-3.3 wt% of copper and 0.22-0.26 wt% of praseodymium; the thickness of the antibacterial surface layer is 15-20 μm; the antibacterial surface layer is obtained by a dual-glow diffusion plating method; wherein the source electrode material is selected from copper praseodymium alloy; the technological parameters of the dual-glow diffusion plating method are as follows: ar pressure is 30 Pa; the source voltage is 950V; the cathode voltage is 450V; the distance between the cathode plates is 15 mm; the heat preservation temperature is 1000 ℃; the heat preservation time is 3.5-6.5 h.
2. The cricothyroid needle of claim 1, wherein the length of the needle body is between 24 and 36 cm.
3. The cricothyroid needle of claim 1, wherein the tip is 2-6cm in length.
4. A cricothyroid needle in accordance with claim 1 wherein said shaft has a diameter of from 2.5 to 4.5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010246546.0A CN111248984B (en) | 2020-03-31 | 2020-03-31 | Cricothyroid membrane puncture needle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010246546.0A CN111248984B (en) | 2020-03-31 | 2020-03-31 | Cricothyroid membrane puncture needle |
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| CN111248984A CN111248984A (en) | 2020-06-09 |
| CN111248984B true CN111248984B (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3916903A (en) * | 1973-07-20 | 1975-11-04 | Reta M H Pozzi | Cricothyroid puncture apparatus |
| CN2103995U (en) * | 1991-09-11 | 1992-05-13 | 西安市第一医院 | arc cricothyroid membrane puncture needle |
| CN1410587A (en) * | 2002-11-11 | 2003-04-16 | 武汉科技大学 | Stainless steel containing copper antibacterial surface and its manufacturing technology |
| CN202409069U (en) * | 2011-12-14 | 2012-09-05 | 陈元朝 | Thyrocricoid puncture device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480355B (en) * | 2009-02-12 | 2010-12-01 | 成都爱欧科技发展有限公司 | Portable cricothyroid membrane puncture needle |
| CN102181822B (en) * | 2011-03-24 | 2013-11-06 | 桂林电子科技大学 | Antibacterial stainless steel with copper-cerium-containing surface, and application and preparation process thereof |
| CN107541661A (en) * | 2017-09-29 | 2018-01-05 | 江苏理工学院 | A kind of antibacterial ferritic stainless steel alloy material and preparation method thereof |
-
2020
- 2020-03-31 CN CN202010246546.0A patent/CN111248984B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3916903A (en) * | 1973-07-20 | 1975-11-04 | Reta M H Pozzi | Cricothyroid puncture apparatus |
| CN2103995U (en) * | 1991-09-11 | 1992-05-13 | 西安市第一医院 | arc cricothyroid membrane puncture needle |
| CN1410587A (en) * | 2002-11-11 | 2003-04-16 | 武汉科技大学 | Stainless steel containing copper antibacterial surface and its manufacturing technology |
| CN202409069U (en) * | 2011-12-14 | 2012-09-05 | 陈元朝 | Thyrocricoid puncture device |
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| CN111248984A (en) | 2020-06-09 |
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