CN104546075A - Safe combined spinal-epidural puncture needle - Google Patents
Safe combined spinal-epidural puncture needle Download PDFInfo
- Publication number
- CN104546075A CN104546075A CN201310750883.3A CN201310750883A CN104546075A CN 104546075 A CN104546075 A CN 104546075A CN 201310750883 A CN201310750883 A CN 201310750883A CN 104546075 A CN104546075 A CN 104546075A
- Authority
- CN
- China
- Prior art keywords
- puncture needle
- epidural
- closing member
- spinal
- nook closing
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3401—Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
- A61B2017/3456—Details of tips blunt
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B2017/347—Locking means, e.g. for locking instrument in cannula
-
- 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
- A61M19/00—Local anaesthesia; Hypothermia
Abstract
The invention relates to a safe combined spinal-epidural puncture needle, the main body of which comprises an epidural puncture needle, an epidural puncture needle core, a spinal puncture needle and a spinal puncture needle core. The curved part of the head of the epidural puncture needle is provided with a spinal puncture dorsal pore, and the epidural puncture needle core comprises a front safety protector, a middle negative pressure conductor, a rear negative pressure displayer, a tail elastic pusher and a needle core base; the epidural needle core base and a rear spinal puncture needle base are connected in a detachable fixing manner. The objective of dual epidural space identification is achieved, moreover, the point of the epidural puncture needle and an epidural catheter can be prevented from entering the subarachnoid space via a spinal puncture needle hole, and the spinal puncture needle is prevented from being broken, and can be conveniently fixed in the epidural puncture needle.
Description
Technical field
The present invention relates to a kind of safe combined spinal epidural puncture needle.
Background technology
At present when carrying out epidural puncture, falling through when mostly relying on anesthesia personnel to operate feels to judge that anesthesia spinal needle needle point arrives epidural space.Then smooth syringe is connect to verify that whether needle tip position is certain in epidural space.Also have by various liquid or airbag apparatus to judge whether anesthesia spinal needle reaches epidural space.Due to everyone feel sensitivity and reaction coordinated speeds different, when sensation or when finding that oneself reaches epidural space, puncture may still advance, be easy to wear out spinal dura mater, so Spinal Cord, cause serious consequence.
Now, commonplace combined spinal epidural puncture needle is used to have 2 kinds clinically, the i.e. product of U.S. company BD, German Braun company and their similar products, although the latter has a dorsal pore on the needle point flexure plane of anesthesia spinal needle, to reduce the chance that epidural catheter is strayed into subarachnoid space, and the success rate that waist wears can be improved, but lumbar puncture needle still can pass from the angle of anesthesia spinal needle, and advantage compared with not being with dorsal pore with the former is also little.
Summary of the invention
The object of the invention is to design a kind of safe combined spinal epidural puncture needle, automatically can show needle point arrive epidural space position and push spinal dura mater open in time, make the needle point of anesthesia spinal needle away from spinal dura mater, avoid wearing out spinal dural new type of safe combined spinal epidural puncture needle, the reliability of epidural negative pressure can also be tested when not extracting epidural nook closing member, thus reach the object of dual qualification epidural space.And, anesthesia spinal needle needle point and epidural catheter can be avoided to enter subarachnoid space by lumbar puncture needle pinprick, prevent lumbar puncture needle from fractureing, facilitate lumbar puncture needle fixing in anesthesia spinal needle.
[0005]safe combined spinal epidural puncture needle of the present invention is made up of anesthesia spinal needle and epidural nook closing member, lumbar puncture needle and lumbar puncture needle core.Wherein, epidural nook closing member is made up of the epidural nook closing member core of front portion and the epidural nook closing member base at rear portion.There is safety device the front end of core, and mid portion has negative pressure conduction device, and rear end is negative pressure display device.Device and nook closing member injection orifice is pushed away before having an elasticity in epidural nook closing member base.Epidural nook closing member core body can move forward and backward in epidural nook closing member base.Epidural nook closing member base and anesthesia spinal needle back seat are that draw-in groove or other fixed forms are connected, and rotate at puncture needle back seat to prevent epidural needle core base.Epidural nook closing member base and lumbar puncture needle tail end are card slot type, rail mounted or other modes are connected and fixed, and the lumbar puncture needle preventing from puncturing successfully moves or rotates.Anesthesia spinal needle front end bent back has a waist to wear dorsal pore.
Safety device: preferred scheme establishes oblate head in the front end of epidural puncture needle core core, for the circular arc elbow that circle is blunt, oblate head closes anesthesia spinal needle front end when epidural puncture needle core retracted state and waist wears dorsal pore, prevents the tissue be cut from entering in anesthesia spinal needle.Anesthesia spinal needle needle point 1 ~ 2mm can be surmounted when epidural puncture needle core ejects state, and spinal dura mater can be pushed open forward and prevent anesthesia spinal needle needle point from wearing out spinal dura mater, and waist can be exposed wear dorsal pore, make epidural space wear dorsal pore by waist and communicate with the external world.
Negative pressure conduction device: be epidural nook closing member core body mid portion, main body is core body, preferred scheme below core body, digs one fall the groove such as " V " font, " C " shape, " U " shape, the front end of groove is downward slope shape, be connected with safety device, pass waist for guiding lumbar puncture needle and wear dorsal pore; End is connected with nook closing member injection orifice.Can conducting pressure, also can supplied gas, liquid pass through.Also can excise a part above core body, make between core body and puncture needle, there are other passages such as an arcuate gap.
Negative pressure display device: be the block outthrust of the end at core body, when after nook closing member perception epidural space negative pressure, under elastic device pushes below, move before being rapidly to, to being subject to stopping when puncture needle afterbody stops, by observing its gap of moving generation and the change of safety label color below can judge to have arrived epidural space.Also can be other negative pressure display devices such as an ejection air bag, thin slice.
Push away device before elasticity: at epidural nook closing member base end, before producing the thrust continued forward, the elasticity making nook closing member core body move forward, push away device.Can be " V " font, the elastic sheet such as " V " font, " C " shape, also can be other elastic devices such as spring, elastic bag.
Epidural nook closing member base: front has smooth track to move for epidural nook closing member core body thereon, and can prevent it from coming off; Rear has the end to keep off, can for pushing away device attachment before elasticity; There is the nook closing member injection orifice communicated with front groove middle and lower part; There is the orbital groove for fixing lumbar puncture needle below.
The head of lumbar puncture needle is half taper tip, and have certain radian that has a down dip, Open Side Down.Tangent plane and the lumbar puncture needle front end half taper tip of lumbar puncture needle nook closing member coincide into a complete coniform tip, reach the spinal dural object of non-cutting.
Lumbar puncture needle back seat can insert and coincide with the nook closing member injection orifice in epidural nook closing member base, and below it, trapezoidal long column can insert in the orbital groove on epidural nook closing member base.After fitting like a glove, the front end of lumbar puncture needle can surmount epidural puncture needle point 7.5mm ~ 15mm.
Epidural nook closing member base and lumbar puncture needle back seat can also " U " shape holds, dismountable fixed form such as built-in draw-in groove is connected.
Lumbar puncture needle also can be common lumbar puncture needle.
Accompanying drawing explanation
Side view when Fig. 1 is the epidural puncture needle core retraction of invention preferred embodiment.Wherein: 1-epidural nook closing member core body, 2-waist push away device, 8-nook closing member injection orifice, 9-epidural nook closing member base, 10-lumbar puncture needle needle body, 11-lumbar puncture needle base, the back side, 12-lumbar puncture needle front end, 13-lumbar puncture needle anterior cuts, 14-lumbar puncture needle core, 15-lumbar puncture needle core tangent plane end before wearing dorsal pore, 3-anesthesia spinal needle inclined-plane, 4-safety device, 5-epidural puncture Aculeata, 6-negative pressure display device, 7-elasticity.
Side view when Fig. 2 is epidural puncture needle core ejection.
Fig. 3 is the side view after lumbar puncture needle is inserted.
Fig. 4 is lumbar puncture needle toe side view.
Fig. 5 is lumbar puncture needle core toe side view.
Fig. 6 is that rear overall toe side view inserted by lumbar puncture needle core.
Detailed description of the invention
After ready work, get the anesthesia spinal needle of safety combined spinal epidural puncture needle, make negative pressure display device upwards, conventional puncture procedure, the nook closing member power that is hampered bounces back in puncture needle, when puncture needle front portion arrives epidural space, resistance reduces or disappears, push away device before elasticity in back seat and promote core body reach, safety device is pushed spinal dura mater forward open, prevent puncture needle from wearing out spinal dura mater, simultaneously, negative pressure display device moves forward, and expose safety label, prompting puncture needle arrives epidural space, now must stop puncturing forward, by the injection orifice of nook closing member, connection syringe is again tested epidural negative pressure and is reached dual negative pressure test effect, and can watch with or without blood, cerebrospinal fluid outflows.After adjustment direction, in epidural nook closing member injection orifice, insert lumbar puncture needle, and in the orbital groove that the trapezoidal long column of lumbar puncture needle back seat is inserted on epidural nook closing member base, with fixing lumbar puncture needle, remaining routine operation.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of invention, meet so any the design's thinking any transformation of the way and in the application of other relevant technical fields all in the scope of the present invention.
Claims (10)
1. a safe combined spinal epidural puncture needle, main body is made up of anesthesia spinal needle and epidural puncture needle core, lumbar puncture needle and lumbar puncture needle nook closing member, it is characterized in that: the head arc-shaped bend place of anesthesia spinal needle has waist to wear dorsal pore; Anesthesia spinal needle nook closing member by the safety device of front portion, middle negative pressure conduction device, the negative pressure display device at rear portion, pushes away device before the elasticity of afterbody and nook closing member base is formed; Epidural nook closing member base is connected with dismountable fixed form with lumbar puncture needle back seat.
2. according to the safe combined spinal epidural puncture needle described in claim 1, it is characterized in that: safety device can be oblate head having the circular arc elbow that circle is blunt.
3. according to the safe combined spinal epidural puncture needle described in claim 1, it is characterized in that: negative pressure conduction device is " V " font, " C " shape, " U " connected in star, curved channel below core body, and its front end is downward slope shape.
4. according to the safe combined spinal epidural puncture needle described in claim 1, it is characterized in that: negative pressure display device, for block outthrust, eject air bag, thin slice, have safety label color after it, it can have injection orifice, can communicate with groove.
5. according to the negative pressure conduction device described in claim 3, it is characterized in that: pushing away device before elasticity is " V " font, " V " font, " C " shape elastic sheet, spring, elastic bag.
6. according to the safe combined spinal epidural puncture needle described in claim 1, it is characterized in that: there is the track for the movement thereon of epidural nook closing member core body in the front of epidural nook closing member base, there is the end gear for pushing away device attachment before elasticity at rear, and there is nook closing member injection orifice middle and lower part; There is the orbital groove for fixing lumbar puncture needle below.
7. according to the safe combined spinal epidural puncture needle described in claim 1, it is characterized in that: the head of lumbar puncture needle is half taper tip, and have certain radian that has a down dip, Open Side Down.
8. according to the safe combined spinal epidural puncture needle described in claim 1, it is characterized in that: tangent plane and the lumbar puncture needle front end half taper tip of lumbar puncture needle nook closing member coincide into a complete coniform tip.
9. according to the safe combined spinal epidural puncture needle described in claim 1, it is characterized in that: Lumbus puncture needle bench has protuberance or other modes and epidural puncture needle stand to fix.
10. according to the safe combined spinal epidural puncture needle described in claim 1, it is characterized in that: epidural nook closing member base is connected in the detachable fixed form such as card slot type, rail mounted, orbital groove formula, " U " shape wrap-around, built-in draw-in groove with between lumbar puncture needle back seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750883.3A CN104546075A (en) | 2013-10-29 | 2013-12-31 | Safe combined spinal-epidural puncture needle |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673506 | 2013-10-29 | ||
| CN201310750883.3A CN104546075A (en) | 2013-10-29 | 2013-12-31 | Safe combined spinal-epidural puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104546075A true CN104546075A (en) | 2015-04-29 |
Family
ID=50806173
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310750883.3A Pending CN104546075A (en) | 2013-10-29 | 2013-12-31 | Safe combined spinal-epidural puncture needle |
| CN201320888762.0U Expired - Fee Related CN203619637U (en) | 2013-10-29 | 2013-12-31 | Safe combined puncture epidural anesthesia puncture needle |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320888762.0U Expired - Fee Related CN203619637U (en) | 2013-10-29 | 2013-12-31 | Safe combined puncture epidural anesthesia puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104546075A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106037895A (en) * | 2016-07-05 | 2016-10-26 | 王刚 | Dual-channel acoustic-guided epidural puncture needle |
| CN108136164A (en) * | 2015-10-30 | 2018-06-08 | 西瑞维斯克有限责任公司 | For treating hydrocephalic system and method |
-
2013
- 2013-12-31 CN CN201310750883.3A patent/CN104546075A/en active Pending
- 2013-12-31 CN CN201320888762.0U patent/CN203619637U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108136164A (en) * | 2015-10-30 | 2018-06-08 | 西瑞维斯克有限责任公司 | For treating hydrocephalic system and method |
| CN108136164B (en) * | 2015-10-30 | 2020-12-08 | 西瑞维斯克公司 | Systems and methods for treating hydrocephalus |
| CN106037895A (en) * | 2016-07-05 | 2016-10-26 | 王刚 | Dual-channel acoustic-guided epidural puncture needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN203619637U (en) | 2014-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9289161B2 (en) | Multi-lancet unit, method and lancet device using the multi-lancet unit, and method of assembling and/or making the multi-lancet unit | |
| EP2462970B1 (en) | Pen needle assembly with different gauge proximal and distal needle cannulas | |
| CN102379704B (en) | Blood sampler with adjustable puncture depth | |
| EP2531242B1 (en) | Dermal access device | |
| MX353902B (en) | Single-use injector of low cost. | |
| NZ629196A (en) | Devices for dispensing surgical fasteners into tissue while simultaneously generating external marks that mirror the number and location of the dispensed surgical fasteners | |
| CN108078596B (en) | Biopsy needle for puncture and use method | |
| MX2016005023A (en) | Injection device. | |
| DE602007004323D1 (en) | DISPOSABLE CARTRIDGES FOR A BEVERAGE MANUFACTURER WITH A MOVABLE NEEDLE ELEMENT | |
| CN107530495A (en) | Signal delay component for medicament delivery device | |
| CN203619637U (en) | Safe combined puncture epidural anesthesia puncture needle | |
| WO2010051383A4 (en) | A device and method for delivery of a drug depot | |
| WO2011011100A4 (en) | A device and method for delivery of a drug depot near the nerve | |
| CN108283508B (en) | Biopsy needle and using method | |
| CN108348740A (en) | Intraosseous injection device | |
| CN104546073A (en) | Epidural space safety puncture needle | |
| CN203724185U (en) | Epidural space safety puncture needle | |
| US20150182699A1 (en) | Syringe extension | |
| CN205198595U (en) | Novel keep somewhere needle location device | |
| CN104023650B (en) | Suturing assembly with spacer | |
| CN208404776U (en) | Sacral nerve percutaneous puncture guide | |
| CN104665897A (en) | Cyber knife tracking marker implanting puncturing needle with pneumothorax preventing function | |
| CN102727285B (en) | Disposable safety scalpel | |
| US9962503B2 (en) | Spring hypodermic needle | |
| CN204683709U (en) | Band protection hernia repair pincers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |
|
| WD01 | Invention patent application deemed withdrawn after publication |