CN203724185U - Epidural space safety puncture needle - Google Patents
Epidural space safety puncture needle Download PDFInfo
- Publication number
- CN203724185U CN203724185U CN201320652384.6U CN201320652384U CN203724185U CN 203724185 U CN203724185 U CN 203724185U CN 201320652384 U CN201320652384 U CN 201320652384U CN 203724185 U CN203724185 U CN 203724185U
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- CN
- China
- Prior art keywords
- puncture needle
- epidural space
- needle
- negative pressure
- epidural
- 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.)
- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an epidural space safety puncture needle which comprises an epidural puncture needle and a needle core of the epidural puncture needle. The needle core comprises a front safety protection device, a middle negative-pressure transmission device, a rear negative-pressure display device, a tail elastic device and a needle core base. The epidural space safety puncture needle has the advantages that the negative-pressure display device can move forwardly, so that whether a needle point of the epidural puncture needle enters the epidural space of a patient or not can be judged, puncture operation can be terminated, the shortcoming of difference in the sensitivity of hand feel of operators can be overcome, and mental stress can be relieved in operation procedures; the front safety protection device can surpass the needle point of the epidural puncture needle, so that risks that the spinal dura mater of the patient is perforated by the needle point can be prevented.
Description
Technical field
This utility model relates to a kind of epidural space safety puncture needle.
Background technology
When carrying out epidural puncture, falling through while mostly relying on anesthesia personnel to operate feels to judge whether anesthesia spinal needle needle point has arrived epidural space at present.Then connect smooth syringe and verify that whether needle tip position is really at epidural space.Also have by various liquid or airbag apparatus and judge whether anesthesia spinal needle reaches epidural space.
Because everyone feel sensitivity and reaction coordinated speeds are different, when feeling or finding that oneself reaches epidural space, puncture may still advanced, and is easy to like this wear out spinal dura mater, and even Spinal Cord, causes serious consequence.
Summary of the invention
The purpose of this utility model is to provide a kind of can show that puncture needle arrives epidural space position and can push in time spinal dura mater open automatically, makes the needle point of anesthesia spinal needle away from spinal dura mater, avoids wearing out spinal dural novel epidural space safety puncture needle.And can also in the situation that not extracting nook closing member, can test the reliability of epidural negative pressure, and then reach the object of dual evaluation epidural space.
Epidural space safety puncture needle described in the utility model consists of anesthesia spinal needle and nook closing member thereof, and nook closing member consists of anterior core body part and the nook closing member base at rear portion.The front end of core body part has safety device, and mid portion has negative pressure conduction device, and rear end is negative pressure display device.Before having the elasticity that nook closing member core body is moved forward in nook closing member base, push away device.Nook closing member core body can move forward and backward in nook closing member base.
Safety device: preferred scheme is to establish oblate head at the front end of core body part, for the blunt circular arc elbow of circle, can surmount anesthesia spinal needle needle point 1 ~ 2mm, and the anesthesia spinal needle needle point that prevents that spinal dura mater can be pushed open is forward worn out spinal dural safety device, oblate head seals anesthesia spinal needle front end when nook closing member retracted state, prevents the tissue obstruction that its rear groove is cut.
Negative pressure conduction device: be core body mid portion, main body is core body, preferred scheme is above core body, to dig a groove, can conducting pressure, also can supplied gas, liquid passes through.The front end of groove is connected with safety device, and end is connected with negative pressure display device.Also can above core body, excise a part, making has other schemes such as a space between core body and puncture needle.
Negative pressure display device: at the end of core body, under after nook closing member perception epidural space negative pressure, elastic device pushes in the back, rapidly to moving above, stop to being subject to when puncture needle afterbody stops, by observing it, move the gap of generation and the variation of safety label color below and can judge and arrived epidural space.Preferred scheme is: be arranged on core body end top, with core body one, have injection orifice on it, and communicate with groove, have the nook closing member of demonstration core body and move, connect syringe test epidural negative pressure and blood, cerebrospinal fluid outflow Presentation Function.Also can be as shown in Figure 4, at the rear of nook closing member core body end, have the Inner cone injection orifice communicating with groove, also can be other negative pressure display devices such as an air bag, column shape container.
Before elasticity, push away device: at nook closing member base end, for pushing away device before the elasticity that can produce the thrust that continues forward, nook closing member core body is moved forward.Can be " V " font, fall the elastic sheet of the shapes such as " V " font, the elastomeric element that pushes away device before elasticity also can be spring, elastic bag etc.
Accompanying drawing explanation
Fig. 1 is nook closing member when retraction side view of this utility model preferred embodiment.Wherein: after 1-puncture needle needle body, 2-core body part, 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.
Fig. 2 is the nook closing member of this utility model preferred embodiment side view while ejecting.
Fig. 3 is the nook closing member of this utility model preferred embodiment top view while ejecting.
The specific embodiment
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 the anterior arrival of puncture needle epidural space, resistance reduces or disappears, before elasticity in back seat, push away device and promote core body reach, safety device is pushed spinal dura mater forward open, prevent that puncture needle from wearing out spinal dura mater, simultaneously, negative pressure display device reach, and expose safety label, prompting puncture needle has arrived epidural space, must stop puncturing forward, can be by the injection orifice of negative pressure display device, connect syringe and again test epidural negative pressure condition, reach dual negative pressure test effect, and can watch and have or not blood, cerebrospinal fluid outflow.Injection orifice injecting anesthetic medicine that can be by negative pressure display device or extract nook closing member and insert epidural catheter.
This utility model is changed a social system slightly and also be can be used as the puncture for treating utensil that other organize lacuna puncture for treating or nerve block to be.So any, meet any transformation of the way of the design's thinking all within the scope of rights protection of the present utility model.
Claims (9)
1. an epidural space safety puncture needle, comprises anesthesia spinal needle and nook closing member thereof, and nook closing member is by anterior safety device, middle negative pressure conduction device, and the negative pressure display device at rear portion, pushes away device and nook closing member base and forms before the elasticity of afterbody.
2. according to the epidural space safety puncture needle described in claim 1, it is characterized in that: safety device is the oblate head of core body front end.
3. according to the epidural space safety puncture needle described in claim 1, it is characterized in that: negative pressure conduction device is the groove of core body and core body top.
4. according to the epidural space safety puncture needle described in claim 1, it is characterized in that: negative pressure conduction device also can be the space between core body and puncture needle.
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 also having safety label color.
6. according to the epidural space safety puncture needle described in claim 1, it is characterized in that: negative pressure display device also can be air bag, column shape container.
7. according to the epidural space safety puncture needle described in claim 1, it is characterized in that: before the afterbody of nook closing member base is flexible, push away device.
8. according to the epidural space safety puncture needle described in claim 1, it is characterized in that: before elasticity, push away device and be " V " font, fall " V " font elastic sheet.
9. according to the epidural space safety puncture needle described in claim 1, it is characterized in that: the elastomeric element that pushes away device before elasticity also can be spring, elastic bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320652384.6U CN203724185U (en) | 2013-10-22 | 2013-10-22 | Epidural space safety puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320652384.6U CN203724185U (en) | 2013-10-22 | 2013-10-22 | Epidural space safety puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203724185U true CN203724185U (en) | 2014-07-23 |
Family
ID=51194297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320652384.6U Expired - Fee Related CN203724185U (en) | 2013-10-22 | 2013-10-22 | Epidural space safety puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203724185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105877787A (en) * | 2016-03-28 | 2016-08-24 | 西南医科大学附属医院 | Negative pressure puncture needle cylinder |
-
2013
- 2013-10-22 CN CN201320652384.6U patent/CN203724185U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105877787A (en) * | 2016-03-28 | 2016-08-24 | 西南医科大学附属医院 | Negative pressure puncture needle cylinder |
| CN105877787B (en) * | 2016-03-28 | 2018-07-24 | 西南医科大学附属医院 | A kind of negative pressure puncture syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20151022 |
|
| EXPY | Termination of patent right or utility model |