CN205083580U - Neural retardant pjncture needle of duplex pipe telescopiform - Google Patents
Neural retardant pjncture needle of duplex pipe telescopiform Download PDFInfo
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- CN205083580U CN205083580U CN201520836076.8U CN201520836076U CN205083580U CN 205083580 U CN205083580 U CN 205083580U CN 201520836076 U CN201520836076 U CN 201520836076U CN 205083580 U CN205083580 U CN 205083580U
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- needle
- adapter
- tube
- interior
- telescopiform
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Abstract
The utility model relates to a neural retardant pjncture needle of duplex pipe telescopiform, interior needle and outer needle including the looks intussusception, interior needle is by inner syringe and interior needle joint, outer needle is by outer needle tubing and outer needle joint, inner syringe is a long inclined plane needle, outer needle tubing is short inclined plane needle, inner syringe is the metal hard tube with outer needle tubing, interior adapter rear end is provided with the female groove that is used for pouring into into the local anesthetic, interior adapter front end is provided with public tenon, outer adapter rear end is provided with and supplies the female groove of public tenon male, the public tenon lateral wall of interior adapter is provided with an arch, female inslot lateral wall of outer adapter is provided with the preceding recess and back recess of alternative and protruding location fit, inner syringe's needle point exposes outside the needle point of outer needle tubing front end when protruding and preceding recess cooperate, inner syringe's needle point is hidden in the lumen of outer needle tubing when arch and recurve slot combination. The utility model discloses existing doing benefit to pierces through the skin manadesma, and difficult damage is neural again.
Description
Technical field
This utility model relates to medical instruments field, particularly relates to a kind of double-needle tube telescopiform puncture needle for nerve block.
Background technology
Ultrasound guidance nerve block technique, due to the advantage such as diffusion that it can observe nerve and surrounding structure, puncture needle path, local anesthesia medicinal liquid intuitively, was used widely in recent years in clinical anesthesia.When single peripheral blockade, technology in many employings plane, because ultrasonic beam only has 1mm wide, the target nerve simultaneously seen in same plane of ultrasound, puncture needle being not easy, the degree of difficulty of real-time tracing puncture needle and target nerve, increase along with the increase of the target nerve degree of depth, along with needle angle increases, the visuality of puncture needle can reduce.When puncture needle (particularly needle point) cannot be observed under ultrasonic, inserting needle process may injured nerve.At present, most scholar thinks that short inclined-plane pin is more difficult and penetrates perineurium, therefore advocates to use short inclined-plane pin.But short inclined-plane pin is more blunt, not easily transdermal and fascia, operation is also inconvenient.
Utility model content
In view of the deficiencies in the prior art, technical problem to be solved in the utility model is to provide one and had both been conducive to transdermal fascia, again the double-needle tube telescopiform puncture needle for nerve block of not easily injured nerve.
In order to solve the problem, the technical solution of the utility model is: a kind of double-needle tube telescopiform puncture needle for nerve block, comprise the interior pin of phase intussusception and outer pin, described interior pin is formed by connecting by inner needle tube and interior needle adapter, described outer pin is formed by connecting by outer needle tubing and outer needle adapter, described inner needle tube is long inclined-plane pin, and described outer needle tubing is short inclined-plane pin, and described inner needle tube and outer needle tubing are metal hard tube; Described interior needle adapter rear end is provided with the female groove for injecting local anaesthetics, described interior needle adapter front end is provided with public tenon, described outer needle adapter rear end is provided with the female groove inserted for male tenon, the public tenon lateral wall of described interior needle adapter is provided with a projection, female groove medial wall of described outer needle adapter is provided with the forward recess and rearward recess of selecting one and protruding location fit, the needle point of described inner needle tube front end is exposed to the outside outside the needle point of needle tubing front end when projection coordinates with forward recess, and the needle point of described inner needle tube front end is hidden in the tube chamber of outer needle tubing when projection coordinates with rearward recess.
Preferably, the pinpoint inclined plane inclination angle of described inner needle tube is 15 ° ~ 25 °, and the pinpoint inclined plane inclination angle of described outer needle tubing is 45 ° ~ 75 °.
Preferably, the pinpoint inclined plane inclination angle of described inner needle tube is 20 °, and the pinpoint inclined plane inclination angle of described outer needle tubing is 70 °.
Preferably, the external diameter of described inner needle tube is 0.55 ~ 0.58mm, and the external diameter of described outer needle tubing is 0.86 ~ 0.92mm.
Preferably, described forward recess and rearward recess lay respectively at the relative both sides of female groove medial wall of outer needle adapter.
Preferably, described forward recess is connected by curved groove with between rearward recess.
Preferably, the degree of depth of described forward recess is not less than the degree of depth of rearward recess.
Preferably, female groove shape size of described outer needle adapter and female groove shape of interior needle adapter measure-alike.
Preferably, the lateral wall of described outer needle adapter is provided with the labelling of two corresponding forward recess of difference and rearward recess.
Compared with prior art, this utility model optimizes the structure of existing puncture needle for nerve block, achieve following beneficial effect: (1), when puncturing, is extended by projection outside the needle point of outer needle tubing with the needle point making inner needle tube that coordinates of forward recess, is conducive to wearing out skin fascia; When the needle point of ultrasonic display inner needle tube is close to target nerve or peripheral vessels, fall back in the tube chamber of outer needle tubing by projection with the needle point making inner needle tube that coordinates of rearward recess, when continuation inserting needle makes the short beveled point of outer needle tubing close to target nerve, not easily injured nerve; (2), during nerve block technique operation, without the need to being pulled out by whole inner needle tube, so both iatrogenic sharp instrument injury can be avoided, when can avoid again again needing inner needle tube to turn back to outer needle tubing, the risk of sharp instrument injury and pollution; (3) if when needing to put pipe, also inner needle tube can be pulled out, the tube chamber through outer needle tubing inserts conduit.
Accompanying drawing explanation
Fig. 1 is the half sectional view of interior pin.
Fig. 2 is the half sectional view of outer pin.
Fig. 3 is the half sectional view of this utility model embodiment when inner needle tube needle point exposes.
Fig. 4 is the half sectional view of this utility model embodiment when inner needle tube needle point is built-in.
Fig. 5 is the left view of this utility model embodiment when inner needle tube needle point exposes.
Labelling in figure: pin in 100-, 110-inner needle tube, needle adapter in 120-, the female groove of 121-, the public tenon of 122-, 123-is protruding, the outer pin of 200-, the outer needle tubing of 210-, 211-graduation mark, the outer needle adapter of 220-, the female groove of 221-, 222-forward recess, 223-rearward recess, 224-curved groove, 225-clamping part, 226-labelling.
Detailed description of the invention
In order to allow above-mentioned feature and advantage of the present utility model become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below.
As shown in Fig. 1 ~ 5, a kind of double-needle tube telescopiform puncture needle for nerve block, comprise interior pin 100 and the outer pin 200 of phase intussusception, described interior pin 100 is formed by connecting by inner needle tube 110 and interior needle adapter 120, described outer pin 200 is formed by connecting by outer needle tubing 210 and outer needle adapter 220, described inner needle tube 110 is long inclined-plane pin (namely needle point is long inclined-plane), and described outer needle tubing 210 is short inclined-plane pin (namely needle point is short inclined-plane), and described inner needle tube 110 and outer needle tubing 210 are metal hard tube, described interior needle adapter 120 rear end is provided with the female groove 121 for injecting local anaesthetics, described interior needle adapter 120 front end is provided with public tenon 122, described outer needle adapter 220 rear end is provided with the female groove 221 inserted for male tenon 122, public tenon 122 lateral wall of described interior needle adapter 120 is provided with a projection 123, female groove 221 medial wall of described outer needle adapter 220 is provided with the forward recess 222 and rearward recess 223 of selecting one and protruding 123 location fit, the needle point of described inner needle tube 110 front end is exposed to the outside outside the needle point of needle tubing 210 front end when protruding 123 coordinate with forward recess 222, the needle point of described inner needle tube 110 front end is hidden in the tube chamber of outer needle tubing 210 when protruding 123 coordinate with rearward recess 223.
In this utility model embodiment, the needle point of described inner needle tube 110 is sharper keen, and the pinpoint inclined plane inclination alpha of described inner needle tube 110 is 15 ° ~ 25 °, such as 15 °, 20 ° or 25 °, preferably 20 °; The needle point of described outer needle tubing 210 is more blunt, and the pinpoint inclined plane angle of inclination beta of described outer needle tubing 210 is 45 ° ~ 75 °, such as 45 °, 50 °, 55 °, 60 °, 65 °, 70 ° or 75 °, preferably 70 °.Wherein, the external diameter of described inner needle tube 110 is 0.55 ~ 0.58mm, and the external diameter of described outer needle tubing 210 is 0.86 ~ 0.92mm.Wherein, the lateral wall of described outer needle tubing 210 can also be provided with graduation mark 211, so that the penetration depth of estimation puncture needle for nerve block.
In this utility model embodiment, described forward recess 222 and rearward recess 223 can lay respectively at the relative both sides of female groove 221 medial wall of outer needle adapter 220, such as forward recess 222 is positioned at needlepoint side, rearward recess 223 is positioned at side, inclined-plane, protruding 123 are correspondingly positioned at needlepoint side, and the two also can lay respectively at inside both sides certainly.
In this utility model embodiment, described forward recess 222 can be connected by curved groove 224 with between rearward recess 223, can move to rearward recess 223 to make protruding 123 from forward recess 222 along curved groove 224.Wherein, the degree of depth of described forward recess 222 and rearward recess 223 can be larger than the degree of depth of curved groove 224, is fixed in forward recess 222 or rearward recess 223 to make protruding 123.Wherein, the degree of depth of described forward recess 222 is not less than the degree of depth of rearward recess 223, and such as forward recess 222 is comparatively dark, rearward recess 223 is more shallow, and the degree of depth of the two also can be equal certainly.
In this utility model embodiment, female groove 221 geomery of described outer needle adapter 220 can be identical with female groove 121 geomery of interior needle adapter 120, all cylindrical and all can be connected with an end connector of the joint of syringe front end or extension tube, to carry out administration.The lateral wall of described outer needle adapter 220 is provided with the labelling 226 of two corresponding forward recess 222 of difference and rearward recess 223, such as a red some labelling, another green some labelling, can arrange density bullet on protruding 123.
In this utility model embodiment, described outer needle adapter 220 can adopt transparent plastics material, so that observe the movement position of protruding 123; Described interior needle adapter 120 also can adopt transparent plastics material, certainly also can adopt opaque plastics material.The middle part of described outer needle adapter 220 can be provided with the clamping part 225 facilitating fingerhold.
When carrying out the operation of ultrasound guidance nerve block technique, first the inner needle tube 110 of interior pin 100 is inserted in outer needle tubing 210 from the outer needle adapter 220 of outer pin 200, again the projection 123 on male tenon 122 lateral wall of interior needle adapter 120 is embedded in the forward recess 222 on female groove 221 medial wall of outer needle adapter 220, now the needle point of inner needle tube 110 extends outside the needle point of outer needle tubing 210, is conducive to wearing out skin fascia when puncturing; When the needle point of ultrasonic display inner needle tube 110 is close to target nerve or peripheral vessels, interior needle adapter 120 is rotated 180 ° (according to the position of curved groove 224, determine to be rotated counterclockwise, still turn clockwise), make protruding 123 to leave forward recess 222 and embed in the rearward recess 223 on female groove 221 medial wall of outer needle adapter 220, now the needle point of inner needle tube 110 then falls back in the tube chamber of outer needle tubing 210, avoids injured nerve and blood vessel in inserting needle process; Continue inserting needle, make the short beveled point of outer needle tubing 210 close to target nerve; Female groove 121 opening finally by interior needle adapter 120 injects local anaesthetics, carries out nerve block.When if desired putting pipe, inner needle tube 110 can be pulled out, the tube chamber through outer needle tubing 210 inserts conduit.
This utility model is not limited to above-mentioned preferred forms, and anyone can draw other various forms of double-needle tube telescopiform puncture needle for nerve block under enlightenment of the present utility model.All equalizations done according to this utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (9)
1. a double-needle tube telescopiform puncture needle for nerve block, it is characterized in that: comprise the interior pin of phase intussusception and outer pin, described interior pin is formed by connecting by inner needle tube and interior needle adapter, described outer pin is formed by connecting by outer needle tubing and outer needle adapter, described inner needle tube is long inclined-plane pin, described outer needle tubing is short inclined-plane pin, and described inner needle tube and outer needle tubing are metal hard tube; Described interior needle adapter rear end is provided with the female groove for injecting local anaesthetics, described interior needle adapter front end is provided with public tenon, described outer needle adapter rear end is provided with the female groove inserted for male tenon, the public tenon lateral wall of described interior needle adapter is provided with a projection, female groove medial wall of described outer needle adapter is provided with the forward recess and rearward recess of selecting one and protruding location fit, the needle point of described inner needle tube front end is exposed to the outside outside the needle point of needle tubing front end when projection coordinates with forward recess, and the needle point of described inner needle tube front end is hidden in the tube chamber of outer needle tubing when projection coordinates with rearward recess.
2. double-needle tube telescopiform puncture needle for nerve block according to claim 1, is characterized in that: the pinpoint inclined plane inclination angle of described inner needle tube is 15 ° ~ 25 °, and the pinpoint inclined plane inclination angle of described outer needle tubing is 45 ° ~ 75 °.
3. double-needle tube telescopiform puncture needle for nerve block according to claim 2, is characterized in that: the pinpoint inclined plane inclination angle of described inner needle tube is 20 °, and the pinpoint inclined plane inclination angle of described outer needle tubing is 70 °.
4. double-needle tube telescopiform puncture needle for nerve block according to claim 1, is characterized in that: the external diameter of described inner needle tube is 0.55 ~ 0.58mm, and the external diameter of described outer needle tubing is 0.86 ~ 0.92mm.
5. double-needle tube telescopiform puncture needle for nerve block according to claim 1, is characterized in that: described forward recess and rearward recess lay respectively at the relative both sides of female groove medial wall of outer needle adapter.
6. double-needle tube telescopiform puncture needle for nerve block according to claim 1 or 5, is characterized in that: described forward recess is connected by curved groove with between rearward recess.
7. double-needle tube telescopiform puncture needle for nerve block according to claim 1 or 5, is characterized in that: the degree of depth of described forward recess is not less than the degree of depth of rearward recess.
8. double-needle tube telescopiform puncture needle for nerve block according to claim 1, is characterized in that: female groove shape size of described outer needle adapter and female groove shape of interior needle adapter measure-alike.
9. double-needle tube telescopiform puncture needle for nerve block according to claim 1, is characterized in that: the lateral wall of described outer needle adapter is provided with the labelling of two corresponding forward recess of difference and rearward recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520836076.8U CN205083580U (en) | 2015-10-27 | 2015-10-27 | Neural retardant pjncture needle of duplex pipe telescopiform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520836076.8U CN205083580U (en) | 2015-10-27 | 2015-10-27 | Neural retardant pjncture needle of duplex pipe telescopiform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205083580U true CN205083580U (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520836076.8U Withdrawn - After Issue CN205083580U (en) | 2015-10-27 | 2015-10-27 | Neural retardant pjncture needle of duplex pipe telescopiform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205083580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193479A (en) * | 2015-10-27 | 2015-12-30 | 高友光 | Double-syringe sleeve type nerve block puncture needle and manufacturing method thereof |
-
2015
- 2015-10-27 CN CN201520836076.8U patent/CN205083580U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193479A (en) * | 2015-10-27 | 2015-12-30 | 高友光 | Double-syringe sleeve type nerve block puncture needle and manufacturing method thereof |
| CN105193479B (en) * | 2015-10-27 | 2017-12-15 | 高友光 | Double-needle tube telescopiform puncture needle for nerve block and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160316 Effective date of abandoning: 20171215 |