CN208389107U - A kind of bone access puncture needle - Google Patents
A kind of bone access puncture needle Download PDFInfo
- Publication number
- CN208389107U CN208389107U CN201721313025.2U CN201721313025U CN208389107U CN 208389107 U CN208389107 U CN 208389107U CN 201721313025 U CN201721313025 U CN 201721313025U CN 208389107 U CN208389107 U CN 208389107U
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- injector bushing
- needle
- fin
- injector
- bushing
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Abstract
The utility model relates to a kind of bone access puncture needles, it can effectively solve the problems, such as that marrow puncture needle infusion is fixed, its technical solution is, including Injector Bushing, Injector Bushing is hollow tubular structures up and down, the top of Injector Bushing is provided with the first thread segment with solid steel needle or hollow needle connection, the fin of multiple protrusions inwardly is circumferentially evenly equipped on the inner wall of Injector Bushing lower part, fin upper end is provided with smooth changeover portion, the inside and outside extruded hole penetrated through is provided on the Injector Bushing side wall between fin two-by-two, the utility model novel and unique, advantages of simple, it is easy to produce, it is easy to operate, it is at low cost, the operation of convenient nursing personnel progress marrow puncture needle infusion, Injector Bushing and one piece of solid steel needle are squeezed into bone, then solid steel needle is extracted, hollow needle is changed to be screwed into Injector Bushing, bore portion will be squeezed by fin Injector Bushing inner wall struts, and the Injector Bushing diameter of the part increases, and frictionally secures with bone, plays the role of preventing abjection.
Description
Technical field
The utility model relates to medical instrument, especially a kind of bone access puncture needle.
Background technique
When being rescued in clinic, when venous channel is not easy to establish, the method that can generally take deep vein puncture, but
It is to occur marrow puncture needle due to spending the time long and be infused, pierced syringe needle by way of launching or spinning
Into bone.But currently without fixation, can not fix, easily deviate from.Because bone itself is harder, there is the work of fixed needle
With, but currently without the measure for preventing abjection.Therefore it improves and innovates and is imperative.
Summary of the invention
For above situation, for the defect for overcoming the prior art, the purpose of the utility model is just to provide a kind of bone access
Puncture needle can effectively solve the problems, such as that marrow puncture needle infusion is fixed.
The technical solution that the utility model solves is that a kind of bone access puncture needle, the puncture needle includes Injector Bushing, indwelling
Needle guard is hollow tubular structures up and down, and the top of Injector Bushing is provided with the with solid steel needle or hollow needle connection
One thread segment is circumferentially evenly equipped with multiple raised fins inwardly on the inner wall of Injector Bushing lower part, and fin upper end is provided with
Smooth changeover portion is provided with the inside and outside extruded hole penetrated through two-by-two on the Injector Bushing side wall between fin.
Solid steel needle is coated in the Injector Bushing, solid steel needle includes needle body and is arranged in the first of needle body upper end
Nut, is provided with the second thread segment corresponding with the first thread segment on the first nut, the first nut by the first thread segment and
Second thread segment spinning is fixed on the upper end of Injector Bushing, and needle body includes enlarged diameter section and reduced diameter section, and enlarged diameter section is located at convex
The inside of Injector Bushing inner wall above rib, reduced diameter section are located at the inside of fin, and the lower end of reduced diameter section is provided with stretching and stays
Set the needle point of needle guard infraoral.
Hollow needle is coated in the Injector Bushing, hollow needle includes hollow needle body and is arranged outside hollow needle body upper end
The second nut on wall, is provided with third thread segment corresponding with the first thread segment on the second nut, and the second nut passes through the
One thread segment and third thread segment spinning are fixed on the upper end of Injector Bushing, and hollow needle body is hollow tubular knot up and down
Structure, the outer diameter of hollow needle body are r, and the internal diameter of Injector Bushing is R, fin with a thickness of D, then r > (R-2D).
The fin inner surface is connected to by the first inclined-plane of upper end, intermediate perpendicular and the second inclined-plane of lower end
It constitutes together, the starting point on the first inclined-plane is connected with the inner wall of Injector Bushing, and end is connected with perpendicular, as transition
Section, the end on the second inclined-plane are connected with the inner wall of Injector Bushing, constitute smooth transition slide construction.
The utility model novel and unique, advantages of simple is easy to produce, easy to operate, at low cost, and convenient nursing personnel carry out marrow
The operation of puncture needle infusion, squeezes into bone for Injector Bushing and one piece of solid steel needle, then extracts solid steel needle, changes hollow needle and twists
Into in Injector Bushing, the Injector Bushing inner wall for squeezing bore portion is strutted by fin, the Injector Bushing diameter of the part increases,
It is frictionally secured with bone, plays the role of preventing abjection, going on smoothly for marrow puncture needle infusion, user has been effectively ensured
Just, effect is good, there is good social and economic benefit.
Detailed description of the invention
Fig. 1 is the sectional front view of the utility model.
Fig. 2 is the use state cross-sectional view that the utility model is connect with solid steel needle.
Fig. 3 is the use state cross-sectional view that the utility model is connect with hollow needle.
Fig. 4 is the sectional view along A-A of the utility model Fig. 1.
Fig. 5 is the main view of the utility model fin.
Fig. 6 is the side view of the utility model fin.
Specific embodiment
It elaborates below in conjunction with attached drawing to specific embodiment of the present utility model.
As shown in Fig. 1-6, the utility model includes Injector Bushing 1, and Injector Bushing 1 is hollow tubular knot up and down
Structure, the top of Injector Bushing 1 are provided with the first thread segment 2 with solid steel needle or hollow needle connection, 1 lower part of Injector Bushing
The fin 3 of multiple protrusions inwardly is circumferentially evenly equipped on inner wall, 3 upper end of fin is provided with smooth changeover portion, two-by-two fin
Between Injector Bushing side wall on be provided with the inside and outside extruded hole 4 penetrated through.
To guarantee using effect, it is coated with solid steel needle in the Injector Bushing 1, solid steel needle includes needle body and setting
The first nut 8 in needle body upper end, is provided with second thread segment 9 corresponding with the first thread segment 2 on the first nut 8, and first
Nut is fixed on the upper end of Injector Bushing 1 by the first thread segment and the second thread segment spinning, and needle body includes enlarged diameter section 5 and small
Diameter segment 6, enlarged diameter section 5 are located at the inside of the Injector Bushing inner wall of 3 top of fin, and reduced diameter section 6 is located at the inside of fin, small
The lower end of diameter segment 6 is provided with the needle point 7 for stretching out Injector Bushing infraoral.
Hollow needle is coated in the Injector Bushing 1, hollow needle includes hollow needle body 10 and is arranged on hollow needle body
The second nut 11 on outer wall is held, is provided with third thread segment 12 corresponding with the first thread segment 2 on the second nut 11, second
Nut is fixed on the upper end of Injector Bushing 1 by the first thread segment and third thread segment spinning, and hollow needle body is up and down
Hollow tubular structures, the outer diameter of hollow needle body are r, and the internal diameter of Injector Bushing 1 is R, fin 3 with a thickness of D, then r > R-2D.
1 lower end of Injector Bushing is in shrink mouth shape.
3 inner surface of fin is the first inclined-plane 3a, the perpendicular 3b of centre and the second inclined-plane of lower end by upper end
3c links together composition, and the starting point of the first inclined-plane 3a is connected with the inner wall of Injector Bushing, end and perpendicular phase
Even, as changeover portion, the end of the second inclined-plane 3c is connected with the inner wall of Injector Bushing, constitutes smooth transition slide construction,
First inclined-plane play the role of be make the section where being transitioned into perpendicular that hollow needle body can be smooth during downlink, thus
The Injector Bushing inner wall of part where extruded hole is strutted, the Injector Bushing diameter of the part increases, and frictionally secures with bone, rises
To the effect for preventing abjection.
The length of the extruded hole 4 is greater than the length of perpendicular 3b, and width is greater than the width of fin.
The Injector Bushing is made of polyurethane material.
The utility model service condition is, by the way that solid steel needle is fixed together with Injector Bushing on the first nut, needle
Point 7 stretches out Injector Bushing infraoral, is injected the solid steel needle being fixed together in bone together with remaining needle by ejector,
Then solid steel needle is extracted by twisting the first nut, the hollow needle body of hollow needle is being inserted into Injector Bushing, is turning the second spiral shell
Cap, hollow needle body downlink pass through fin for part where extruded hole due to its outer diameter r > R-2D during downlink
Injector Bushing inner wall strut, the Injector Bushing diameter of the part increases, and frictionally secures with bone, plays the work for preventing abjection
With, it is then injected by the inner cavity of hollow needle body, going on smoothly for marrow puncture needle infusion has been effectively ensured, it is new
Clever unique, advantages of simple is easy to produce, easy to operate, at low cost, and convenient nursing personnel carry out the operation of marrow puncture needle infusion, makes
With conveniently, effect is good, there is good social and economic benefit.
Claims (6)
1. a kind of bone access puncture needle, which is characterized in that the puncture needle includes Injector Bushing (1), and Injector Bushing (1) is to pass through up and down
Logical hollow tubular structures, the top of Injector Bushing (1) are provided with the first thread segment with solid steel needle or hollow needle connection
(2), the fin (3) of multiple protrusions inwardly is circumferentially evenly equipped on the inner wall of Injector Bushing (1) lower part, fin (3) upper end is set
It is equipped with smooth changeover portion, is provided with the inside and outside extruded hole (4) penetrated through on the Injector Bushing side wall between fin two-by-two.
2. bone access puncture needle according to claim 1, which is characterized in that be coated with reality in the Injector Bushing (1)
Heart steel needle, solid steel needle include needle body and the first nut (8) that needle body upper end is arranged in, and are provided on the first nut (8) and the
Corresponding second thread segment (9) of one thread segment (2), the first nut are fixed on by the first thread segment and the second thread segment spinning
The upper end of Injector Bushing (1), needle body include enlarged diameter section (5) and reduced diameter section (6), and enlarged diameter section (5) is located above fin (3)
Injector Bushing inner wall inside, reduced diameter section (6) is located at the inside of fin, and the lower end of reduced diameter section (6) is provided with stretching and stays
Set the needle point (7) of needle guard infraoral.
3. bone access puncture needle according to claim 1, which is characterized in that installed in the Injector Bushing (1) free
Heart needle, hollow needle include hollow needle body (10) and the second nut (11) being arranged on the outer wall of hollow needle body upper end, the second nut
(11) it is provided with third thread segment (12) corresponding with the first thread segment (2) on, the second nut passes through the first thread segment and the
Three thread segment spinnings are fixed on the upper end of Injector Bushing (1), and hollow needle body is hollow tubular structures up and down, hollow needle body
Outer diameter be r, the internal diameter of Injector Bushing (1) is R, fin (3) with a thickness of D, then r > (R-2D).
4. bone access puncture needle according to claim 1, which is characterized in that Injector Bushing (1) lower end is in necking
Shape.
5. bone access puncture needle according to claim 1, which is characterized in that fin (3) inner surface is by upper end
Second inclined-plane (3c) on the first inclined-plane (3a), intermediate perpendicular (3b) and lower end links together composition, the first inclined-plane
The starting point of (3a) is connected with the inner wall of Injector Bushing, and end is connected with perpendicular, as changeover portion, the second inclined-plane (3c)
End be connected with the inner wall of Injector Bushing, constitute smooth transition slide construction.
6. bone access puncture needle according to claim 5, which is characterized in that the length of the extruded hole (4) is greater than vertical
The length of plane (3b), width are greater than the width of fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721313025.2U CN208389107U (en) | 2017-10-12 | 2017-10-12 | A kind of bone access puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721313025.2U CN208389107U (en) | 2017-10-12 | 2017-10-12 | A kind of bone access puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208389107U true CN208389107U (en) | 2019-01-18 |
Family
ID=65065333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721313025.2U Active CN208389107U (en) | 2017-10-12 | 2017-10-12 | A kind of bone access puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208389107U (en) |
-
2017
- 2017-10-12 CN CN201721313025.2U patent/CN208389107U/en active Active
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| GR01 | Patent grant |