CN104546073A - Epidural space safety puncture needle - Google Patents
Epidural space safety puncture needle Download PDFInfo
- Publication number
- CN104546073A CN104546073A CN201310500404.2A CN201310500404A CN104546073A CN 104546073 A CN104546073 A CN 104546073A CN 201310500404 A CN201310500404 A CN 201310500404A CN 104546073 A CN104546073 A CN 104546073A
- Authority
- CN
- China
- Prior art keywords
- puncture needle
- negative pressure
- epidural space
- closing member
- core body
- 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
- A61B17/3403—Needle locating or guiding means
-
- 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
Abstract
An epidural space safety puncture needle comprises an epidural puncture needle body and a needle core thereof. The needle core is composed of a safety guard device in the front, a negative-pressure conduction device in the middle, a negative-pressure display device in the rear, an elastic device in the tail and a needle core base. It is judged that the point of the epidural puncture needle body already enters the epidural space according to forward movement of the negative-pressure display device so as to stop puncture operation, the defect of difference of hand feel sensitivity of an operator is overcome, and mental pressure in the operation process is alleviated. The safety guard device in the front can surpass the point of the epidural puncture needle body so as to prevent the danger that the point perforate the spinal dura mater.
Description
Technical field
The present invention relates to a kind of epidural space safety 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.
Summary of the invention
The object of the present invention is to provide one 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, thus avoid wearing out spinal dural novel epidural space safety puncture needle.
Epidural space safety puncture needle of the present invention is made up of puncture needle and nook closing member thereof, and nook closing member is made up of core above and nook closing member base below.The oblate head in front end of core is the safety device that can surmount puncture needle needle point 1 ~ 2mm and spinal dura mater can be pushed open forward; Core body mid portion is negative pressure conduction device, it has one can cut-out above the groove of conducting pressure or core body, front end closed pockets blockage resisting when nook closing member retracted state of groove, the rear end of groove is negative pressure display device, be integrated with the body of nook closing member, and it has injection orifice, be connected with groove, there is display nook closing member core body and move, connect syringe test epidural negative pressure and blood, cerebrospinal fluid outflow Presentation Function; Nook closing member base is connected with anesthesia spinal needle back seat, and nook closing member core body can move forward and backward in nook closing member base, has an elastic device that nook closing member core body is moved forward in it.
The preferred scheme of safety device establishes oblate head in the front end of core, is the circular arc elbow that circle is blunt, can surmounts puncture needle needle point 1 ~ 2mm, and safety device spinal dura mater can pushed open forward, and can blockage resisting.
Negative pressure conduction device is core body mid portion, and main body is core body, and preferred scheme is above core body, dig a groove, can conducting pressure, and oblate head closed pockets blockage resisting when nook closing member retracted state of the front end of groove, end is connected with negative pressure display device.Also can excise a part above core body, make between core body and puncture needle, there are other schemes such as a space.
Negative pressure display device is above the end of core body, and preferred scheme is: it has injection orifice, and communicates with groove, has display nook closing member core body and moves, connects syringe test epidural negative pressure and blood, cerebrospinal fluid outflow Presentation Function.Also can be other negative pressure display devices such as an air bag, column shape container
Nook closing member base is connected with anesthesia spinal needle back seat, and nook closing member core body can move forward and backward in nook closing member base, has an elastic device that nook closing member core body is moved forward in it.
Elastic device: preferred scheme is " V " font or " V " font elastic sheet that falls, and also can be other elastomeric materials such as spring, elastic bag.
Accompanying drawing explanation
Side view when Fig. 1 is the nook closing member retraction of the preferred embodiment of the present invention.Wherein: after 1-puncture needle needle body, 2-core, 3-safety device, 4-puncture needle inclined-plane, 5-groove front portion, 6-negative pressure conduction device, 7-nook closing member base, 8-, before shelves, 9-negative pressure display device, 10-elasticity, push away device.
Side view when Fig. 2 is the nook closing member ejection of the preferred embodiment of the present invention.
Top view when Fig. 3 is the nook closing member ejection of the preferred embodiment of the present invention.
Detailed description of the invention
After ready work, get this anesthesia spinal 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, prompting puncture needle arrives epidural space, must stop puncturing forward, by the injection orifice of negative pressure display device, connect syringe test epidural negative pressure or watch with or without blood, cerebrospinal fluid outflows.By negative pressure display device injection orifice injecting anesthetic medicine or extract nook closing member and insert epidural catheter.
The present invention also can be used as other puncture for treating utensils organizing lacuna puncture for treating or nerve block to be.
Claims (10)
1. an epidural space safety puncture needle, comprises anesthesia spinal needle and nook closing member thereof, and nook closing member is by the safety device of front portion, and 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.
2. according to the epidural space safety 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 epidural space safety puncture needle described in claim 1, it is characterized in that: the groove above negative pressure conduction device to be body be core body and core body.
4. according to the negative pressure conduction device described in claim 3, it is characterized in that: negative pressure conduction device also can eliminate a part above core body, make between core body and puncture needle, there are other schemes such as a space.
5. according to the epidural space safety puncture needle described in claim 1, it is characterized in that: negative pressure display device, at core body rear portion, above has injection orifice, and communicates with groove.
6. according to the negative pressure display device described in claim 5, it is characterized in that: also can be other negative pressure display devices such as an air bag, column shape container.
7. according to the epidural space safety puncture needle described in claim 1, it is characterized in that: the flexible device of afterbody of nook closing member base.
8. according to the epidural space safety puncture needle described in claim 1, it is characterized in that: pushing away device before elasticity is " V " font or " V " font elastic sheet that falls.
9. according to Claim 8 described in elasticity before push away device, it is characterized in that: also can be other elastomeric elements such as spring, elastic bag.
10. according to the epidural space safety puncture needle described in claim 1, it is characterized in that: also can be used as the puncture for treating utensil that other organizes lacuna puncture for treating or nerve block to be.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310500404.2A CN104546073A (en) | 2013-10-22 | 2013-10-22 | Epidural space safety puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310500404.2A CN104546073A (en) | 2013-10-22 | 2013-10-22 | Epidural space safety puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104546073A true CN104546073A (en) | 2015-04-29 |
Family
ID=53063897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310500404.2A Pending CN104546073A (en) | 2013-10-22 | 2013-10-22 | Epidural space safety puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104546073A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110801270A (en) * | 2019-10-31 | 2020-02-18 | 中国人民解放军陆军第七十七集团军医院 | A intelligent puncture drainage device for extracting hydrops |
| CN114191052A (en) * | 2022-01-18 | 2022-03-18 | 临沂市兴华医用器材有限公司 | Flexible reinforced anesthesia puncture kit |
-
2013
- 2013-10-22 CN CN201310500404.2A patent/CN104546073A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110801270A (en) * | 2019-10-31 | 2020-02-18 | 中国人民解放军陆军第七十七集团军医院 | A intelligent puncture drainage device for extracting hydrops |
| CN114191052A (en) * | 2022-01-18 | 2022-03-18 | 临沂市兴华医用器材有限公司 | Flexible reinforced anesthesia puncture kit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |