CN204319488U - A kind of flute profile sheath brain puncture needle - Google Patents
A kind of flute profile sheath brain puncture needle Download PDFInfo
- Publication number
- CN204319488U CN204319488U CN201420735698.7U CN201420735698U CN204319488U CN 204319488 U CN204319488 U CN 204319488U CN 201420735698 U CN201420735698 U CN 201420735698U CN 204319488 U CN204319488 U CN 204319488U
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- CN
- China
- Prior art keywords
- needle
- sheath
- tube
- clamping groove
- groove
- 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
Links
- 210000004556 brain Anatomy 0.000 title claims abstract description 23
- 238000003780 insertion Methods 0.000 claims description 18
- 230000037431 insertion Effects 0.000 claims description 18
- 230000006978 adaptation Effects 0.000 abstract 1
- 230000002861 ventricular Effects 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 4
- 210000001175 cerebrospinal fluid Anatomy 0.000 description 4
- 206010018852 Haematoma Diseases 0.000 description 3
- 206010000269 abscess Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010011732 Cyst Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 208000031513 cyst Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000002726 cyst fluid Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000185 intracerebroventricular administration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- External Artificial Organs (AREA)
Abstract
This utility model provides a kind of flute profile sheath brain puncture needle, comprises the grooved stylophore of nook closing member, needle tubing and the sidewall opening with identical axle center; Stylophore comprises the head end of hollow and the pipe portion with described head end conducting, and the head end sidewall of stylophore is provided with spacing draw-in groove; The needle stand of needle tubing is provided with the screens of described spacing draw-in groove adaptation protruding; Wherein, nook closing member is inserted in needle tubing, and needle tubing is inserted into described stylophore, and the needle tip of nook closing member stretches out from the pipe portion of stylophore; The needle stand of needle tubing is positioned at the head end of stylophore, and screens projection is positioned at spacing draw-in groove.This utility model structure is simple, easy to use, makes full use of the puncture channel that grooved stylophore is formed, and can be reduced to insert drainage tube etc. and carry out secondary puncture, of many uses.
Description
Technical Field
The utility model belongs to the field of clinical surgical instruments for neurology and surgery, in particular to a groove-shaped sheath brain puncture needle.
Background
In the neurosurgical clinical treatment, ventricular and cystic puncture is a common basic skill operation. The traditional brain puncture needle consists of a needle tube and a needle core, wherein the length of the needle tube is 100mm, and the outer diameter of the needle tube is 2.5 mm; the needle core is 1.5 mm. Brain puncture needles are commonly used: ventricular puncture releases cerebrospinal fluid; cystic focus puncture to clarify cyst fluid properties; hematoma, abscess puncture probing, and the like. The brain puncture needle is only used for one-time puncture drainage and exploration, and if a drainage tube needs to be kept in place, the drainage tube needs to be used for secondary puncture.
The ventricular puncture external drainage method commonly used in clinic at present comprises the following steps: after the ventricle is successfully punctured by using the traditional brain puncture needle, the outflow of cerebrospinal fluid can be seen, if a drainage tube outside the ventricle needs to be kept, the brain puncture needle needs to be pulled out, and a drainage tube sleeve core (generally a stainless steel wire) is arranged in the ventricle along a puncture channel, so that the puncture damage is increased once and the change of the puncture channel is possible. The other mode is that the core of the drainage tube is directly used for puncturing the ventricle along the preset puncture direction, the core of the drainage tube is pulled out after cerebrospinal fluid flows out of the tube, and then the core of the drainage tube is sent into the ventricle by about 2cm, and the puncture accuracy is not as good as that of a rigid ventricle puncture needle because the tube head of the drainage tube has certain flexibility or the puncture direction is deviated because the needle core is not straight enough. The operation of placing the tube in the sac cavity, the abscess cavity and the hematoma cavity is similar to the operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a groove-shaped sheath brain puncture needle, which aims to solve the defects in the prior art.
The utility model is realized in such a way that a groove-shaped sheath brain puncture needle comprises a needle core with the same axis, a needle tube and a groove-shaped needle sheath with an opening on the side wall; the needle sheath comprises a hollow head end and a tube part communicated with the head end, and a limiting clamping groove is formed in the side wall of the head end of the needle sheath; a clamping bulge matched with the limiting clamping groove is arranged on the needle seat of the needle tube; wherein,
the needle core is inserted into a needle tube, the needle tube is inserted into the needle sheath, and the needle tip of the needle core extends out of the tube part of the needle sheath; the needle seat of the needle tube is positioned in the head end of the needle sheath, and the clamping bulge is positioned in the limiting clamping groove.
Preferably, the tube part of the needle sheath and the surface of the needle tube are provided with scales.
Preferably, the limiting clamping groove comprises an insertion section clamping groove and a limiting section clamping groove communicated with the insertion section clamping groove, the insertion section clamping groove is parallel to the axis of the needle sheath, the insertion section clamping groove is opened on the side wall of the head end of the needle sheath, and the limiting section clamping groove is perpendicular to the insertion section clamping groove.
Compare in prior art's shortcoming and not enough, the utility model discloses following beneficial effect has:
(1) the utility model discloses simple structure, convenient to use, the puncture passageway that make full use of cell type sheath constitutes, reducible carry out the secondary puncture for putting into the drainage tube etc. because there is rigid cell type sheath guide, soft devices such as drainage tube also can accurately put into ventricles of brain or cyst chamber under the condition that does not need the tube core, put into pipe or probe in clinical various punctures, have easy and simple to handle, swift, accurate advantage.
(2) The utility model can be made into different diameters according to clinical requirements or the diameter of the ventricular drainage tube, so as to put in the ventricular external drainage tubes of different models. And various derivative models can be developed according to requirements, such as different lengths, different pipe diameters, different degrees of sharpness of the needle core head end and the like, and the needle is suitable for multiple purposes of three-dimensional directional operation, subcutaneous tunnel forming, bridge vessel or shunt tube guiding and the like.
Drawings
FIG. 1 is a schematic structural view of a groove-type sheath brain puncture needle of the present invention in a state where a needle core, a needle tube and a needle sheath are combined;
FIG. 2 is a schematic structural view of section A-A of FIG. 1;
FIG. 3 is a schematic structural view of the groove-type sheath brain puncture needle of the present invention in a state where the needle core, the needle tube and the needle sheath are disassembled;
FIG. 4 is a schematic view of another side structure of the needle sheath of the groove-type sheath brain puncture needle of the present invention;
fig. 5 is an enlarged schematic view of a portion a of fig. 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in FIGS. 1 to 4, FIG. 1 is a schematic structural view of a groove-type sheath brain puncture needle of the present invention in a state where a needle core, a needle tube and a needle sheath are combined; FIG. 2 is a schematic structural view of section A-A of FIG. 1; FIG. 3 is a schematic structural view of the groove-type sheath brain puncture needle of the present invention in a state where the needle core, the needle tube and the needle sheath are disassembled; FIG. 4 is a schematic view of another side structure of the needle sheath of the groove-type sheath brain puncture needle of the present invention; fig. 5 is an enlarged schematic view of a portion a of fig. 4.
A groove-shaped sheath brain puncture needle comprises a needle core 1 with the same axis, a needle tube 2 and a groove-shaped needle sheath 3 with an opening on the side wall; the needle sheath 3 comprises a hollow head end 31 and a tube part 32 communicated with the head end, and a limit clamping groove 33 is arranged on the side wall of the head end of the needle sheath 3; a clamping bulge 22 matched with the limiting clamping groove 33 is arranged on the needle seat 21 of the needle tube 2; wherein, the needle core 1 is inserted into the needle tube 2, the needle tube 2 is inserted into the needle sheath 3, and the needle tip of the needle core 1 extends out of the tube part 32 of the needle sheath 3; the needle seat 21 of the needle tube 2 is positioned in the head end 31 of the needle sheath 3, and the retaining bulge 22 is positioned in the limiting clamping groove 33.
In the embodiment of the invention, in order to facilitate grasping the puncture depth, the tube part of the needle sheath 3 and the surface of the needle tube 2 are provided with scales. In addition, more specifically, the limit slot 33 includes an insertion slot 331 and a limit slot 332 communicating with the insertion slot 331, the insertion slot 331 is parallel to the axis of the needle sheath 3, the insertion slot 331 is open at the side wall of the head end 31 of the needle sheath 3, and the limit slot 332 is perpendicular to the insertion slot 331. The width of the notch of the sheath 3 is about 2/3 of the diameter of the sheath 3, and if too narrow, the tube will not easily come out of the side wall opening after the tube is placed.
The utility model discloses an in the actual brain puncture process, including following step:
(1) the needle core 1 is inserted into the needle tube 2, the needle tube 2 is inserted into the needle sheath 3, the blocking protrusion 22 is inserted into the bottom of the insertion section clamping groove 331, the needle sheath 3 is rotated, the blocking protrusion 22 enters the limiting section clamping groove 332 from the insertion section clamping groove 331, at the moment, the needle core 1, the needle tube 2 and the needle sheath 3 are combined into a whole, as shown in fig. 1, and the brain is punctured according to a clinical conventional operation method (cerebrospinal fluid flows out when the needle core is pulled out, so that the successful puncturing can be confirmed).
(2) The needle tube 2 is rotated to make the blocking bulge 22 withdraw from the blocking section clamping groove 332, the needle tube 2 is pulled out along the insertion section clamping groove 331, at the moment, the needle core 1 is pulled out together with the needle tube 2, and the needle sheath 3 is left in the brain.
(3) The soft drainage tube with the diameter equivalent to that of the needle sheath 3 is placed into the ventricle along the groove-shaped needle sheath 3, and whether the placing depth is proper or not can be confirmed through the scales on the drainage tube.
(4) After the drainage tube is placed into a proper position, the drainage tube is temporarily fixed so as not to shift, and the groove-shaped needle sheath 3 is withdrawn out of the body along the drainage tube.
(5) The soft drainage tube is pulled out of the body from the groove-shaped opening of the needle sheath 3 (care should be taken to keep the depth of the intracerebroventricular section of the drainage tube not to be greatly displaced).
(6) The groove-shaped needle sheath is released, and the drainage tube is successfully retained.
In addition, the utility model can be used for puncture cyst, abscess and hematoma cavity catheterization drainage as well; wherein, the needle core 1 and the needle tube 2 combination without the groove-shaped needle sheath 3 is used as the traditional ventricular puncture needle.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. A groove-shaped sheath brain puncture needle is characterized by comprising a needle core with the same axis, a needle tube and a groove-shaped needle sheath with an opening on the side wall; the needle sheath comprises a hollow head end and a tube part communicated with the head end, and a limiting clamping groove is formed in the side wall of the head end of the needle sheath; a clamping bulge matched with the limiting clamping groove is arranged on the needle seat of the needle tube; wherein,
the needle core is inserted into a needle tube, the needle tube is inserted into the needle sheath, and the needle tip of the needle core extends out of the tube part of the needle sheath; the needle seat of the needle tube is positioned in the head end of the needle sheath, and the clamping bulge is positioned in the limiting clamping groove.
2. The channel-shaped sheath encephalopuncture needle of claim 1, wherein the tube portion of the sheath and the surface of the needle cannula are provided with graduations.
3. The groove-shaped sheath encephalopuncture needle according to claim 2, wherein the limiting clamping groove comprises an insertion section clamping groove and a limiting section clamping groove communicated with the insertion section clamping groove, the insertion section clamping groove is parallel to the axis of the needle sheath, the insertion section clamping groove is opened on the side wall of the head end of the needle sheath, and the limiting section clamping groove is perpendicular to the insertion section clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735698.7U CN204319488U (en) | 2014-12-01 | 2014-12-01 | A kind of flute profile sheath brain puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735698.7U CN204319488U (en) | 2014-12-01 | 2014-12-01 | A kind of flute profile sheath brain puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204319488U true CN204319488U (en) | 2015-05-13 |
Family
ID=53155894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420735698.7U Expired - Fee Related CN204319488U (en) | 2014-12-01 | 2014-12-01 | A kind of flute profile sheath brain puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204319488U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236211A (en) * | 2016-08-31 | 2016-12-21 | 吴淼经 | Intracranial lesion puncture positioning device based on brain stereotactic system |
| CN110664444A (en) * | 2019-09-12 | 2020-01-10 | 济南科众医疗科技有限公司 | Soft tissue expander |
| WO2020191807A1 (en) * | 2019-03-27 | 2020-10-01 | 深圳市擎源医疗器械有限公司 | Puncture needle assembly and balloon catheter kit |
-
2014
- 2014-12-01 CN CN201420735698.7U patent/CN204319488U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236211A (en) * | 2016-08-31 | 2016-12-21 | 吴淼经 | Intracranial lesion puncture positioning device based on brain stereotactic system |
| CN106236211B (en) * | 2016-08-31 | 2019-01-29 | 吴淼经 | Intracranial lesion puncture positioning device based on brain stereotactic system |
| WO2020191807A1 (en) * | 2019-03-27 | 2020-10-01 | 深圳市擎源医疗器械有限公司 | Puncture needle assembly and balloon catheter kit |
| CN110664444A (en) * | 2019-09-12 | 2020-01-10 | 济南科众医疗科技有限公司 | Soft tissue expander |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Gang Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20151201 |
|
| EXPY | Termination of patent right or utility model |