CN1586413A - Epidural space pressure detection puncture needle - Google Patents
Epidural space pressure detection puncture needle Download PDFInfo
- Publication number
- CN1586413A CN1586413A CN 200410066482 CN200410066482A CN1586413A CN 1586413 A CN1586413 A CN 1586413A CN 200410066482 CN200410066482 CN 200410066482 CN 200410066482 A CN200410066482 A CN 200410066482A CN 1586413 A CN1586413 A CN 1586413A
- Authority
- CN
- China
- Prior art keywords
- needle
- needle tubing
- closing member
- puncture
- epidural space
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 description 3
- 210000002330 subarachnoid space Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000002692 epidural anesthesia Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 208000037816 tissue injury Diseases 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The epidural space manometering puncture needle includes needle tube with spoon-shaped front opening and needle core, and features that the needle core has round head fitting the spoon-shaped front opening of the needle tube and handle matching with the needle tube in the end, that the needle core set inside the needle tube and the needle tube form one cavity, and that the needle tube has negative pressure leading out hole and side hole in its front end and back end separately. The puncture needle has simple structure and simple operation and makes it possible to realize dynamic observation during puncture for raised successful puncture rate and reduced damage.
Description
Technical field
The present invention relates to the epidural space pressure detection puncture needle that is used to puncture, belong to a kind of medical apparatus and instruments.
Background technology
Existing cavum epidural puncture pin comprises needle tubing, nook closing member, the front end of needle tubing is a spoonful shape opening, nook closing member places in the needle tubing, fit fully with needle interior wall, whether successful the puncture needle of this structure does not possess can provide puncture sign for the operator, exist bubble to beat and test the interpretation difficulty, seriality detects negative pressure effectively synchronously in piercing process, must extract nook closing member repeatedly out with the test negative pressure, be interrupted advancing needle body easily to be strayed into subarachnoid space, needle point location determination inaccuracy in vivo or the like problem, normally carrying out of art anaesthetized in influence.
Summary of the invention
The purpose of this invention is to provide a kind of simple operation, be convenient to pinpoint epidural space pressure detection puncture needle.
Epidural space pressure detection puncture needle of the present invention, comprise needle tubing, nook closing member, the front end of needle tubing is a spoonful shape opening, the front end that it is characterized in that nook closing member has the circle head that the spoon shape opening with the needle tubing front end matches, end has the handle that matches with the needle tubing mouth of pipe, circle head and handle are partial to the same side of nook closing member straight-bar, nook closing member places in the needle tubing, the circle head of its front end and terminal nook closing member handle are close to the spoon shape opening of needle tubing front end and the mouth of pipe of rear end respectively, form cavity with needle tubing, before the needle tubing cavity, the rear end is respectively arranged with the negative pressure fairlead and the side opening that are communicated with cavity.
Usually, make the negative pressure fairlead of needle tubing front end apart from needle point apical margin 1～1.5mm.So that draw negative pressure and clear and definite puncture position correctness in the very first time.
During use, the side opening of needle tubing cavity and U type pipe that liquid is housed or the bubble developmental tube of beating is connected, in the piercing process, need not to extract out repeatedly nook closing member, when in a single day puncture needle enters epidural space, just can beat by the bubble that the fluid column fluctuation quantitative detection that indicates in the graduated U type pipe is beaten in the developmental tube to epidural space negative pressure or bubble, point out the puncture position correctness in the very first time for the operator, prevent that inserting needle is strayed into subarachnoid space too deeply, guarantees to puncture successfully.
Epidural space pressure detection puncture needle of the present invention is simple in structure, simple operation, negative pressure appearance when entering epidural space and bubble beat multiple indication flexibly, organically combination, reach accurate degeneracy, in piercing process, realize dynamic observing, whole epidural anesthesia operation is accomplished without any letup, improve puncture success rate, reduce complication such as tissue injury.
Description of drawings
Fig. 1 is the epidural space pressure detection puncture needle structural representation;
Fig. 2 is the needle tubing sketch map;
Fig. 3 is the nook closing member sketch map.
The specific embodiment
With reference to Fig. 1, epidural space pressure detection puncture needle comprises needle tubing 1, nook closing member 2, the front end of needle tubing is spoonful shape opening 3 (see figure 2)s, the front end of nook closing member 2 has spoonful circle head 2-1 that shape opening 3 matches with the needle tubing front end, end has the handle 2-2 that matches with the needle tubing mouth of pipe, circle head 2-1 and handle 2-2 are positioned at the same side (seeing shown in Figure 3) of nook closing member 2 straight-bars, nook closing member 2 places in the needle tubing, the circle head 2-1 of its front end and terminal handle 2-2 are close to the spoon shape opening of needle tubing front end and the mouth of pipe of rear end respectively, form cavity 4 with needle tubing, before the needle tubing cavity, the rear end is respectively arranged with the negative pressure fairlead 5 and the side opening 6 that are communicated with cavity 4.Said needle tubing can be colourless rigid plastics or rustless steel, and nook closing member can be that metal or hard material are made.
Claims (2)
1. epidural space pressure detection puncture needle, comprise needle tubing (1), nook closing member (2), the front end of needle tubing is a spoonful shape opening (3), the front end that it is characterized in that nook closing member (2) has the circle head (2-1) that the spoon shape opening (3) with the needle tubing front end matches, end has the handle (2-2) that matches with the needle tubing mouth of pipe, circle head (2-1) and handle (2-2) be the same side of nook closing member (2) straight-bar relatively, nook closing member (2) places in the needle tubing, the circle head (2-1) of its front end and terminal handle (2-2) are close to the spoon shape opening of needle tubing front end and the mouth of pipe of rear end respectively, form cavity (4) with needle tubing, before the needle tubing cavity, the rear end is respectively arranged with the negative pressure fairlead (5) and the side opening (6) that are communicated with cavity (4).
2. epidural space pressure detection puncture needle according to claim 1, the negative pressure fairlead (5) that it is characterized in that the needle tubing front end is apart from needle point apical margin 1～1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100664827A CN1302755C (en) | 2004-09-15 | 2004-09-15 | Epidural space pressure detection puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100664827A CN1302755C (en) | 2004-09-15 | 2004-09-15 | Epidural space pressure detection puncture needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1586413A true CN1586413A (en) | 2005-03-02 |
| CN1302755C CN1302755C (en) | 2007-03-07 |
Family
ID=34604013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100664827A Expired - Fee Related CN1302755C (en) | 2004-09-15 | 2004-09-15 | Epidural space pressure detection puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1302755C (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2081671A1 (en) * | 1991-02-28 | 1992-08-29 | Eloy Ucha Clavo | Method and apparatus for locating anatomical cavities |
| US5449351A (en) * | 1993-09-09 | 1995-09-12 | Zohmann; Walter A. | Atraumatic needle for lumbar puncture |
| CN2244917Y (en) * | 1995-10-17 | 1997-01-15 | 王令平 | Extradural puncturing needle |
| JP4085351B2 (en) * | 1999-09-14 | 2008-05-14 | ドクタージャパン株式会社 | Epidural anesthesia needle |
| CN2724647Y (en) * | 2004-09-15 | 2005-09-14 | 浙江大学 | Thin core epidural cavity manometric puncture needle |
-
2004
- 2004-09-15 CN CNB2004100664827A patent/CN1302755C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1302755C (en) | 2007-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |