CN206482723U - Ball week joint injection syringe needle after a kind of eyeball - Google Patents
Ball week joint injection syringe needle after a kind of eyeball Download PDFInfo
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- CN206482723U CN206482723U CN201621288171.XU CN201621288171U CN206482723U CN 206482723 U CN206482723 U CN 206482723U CN 201621288171 U CN201621288171 U CN 201621288171U CN 206482723 U CN206482723 U CN 206482723U
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- needle
- needle body
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- ball
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Abstract
Ball week joint injection syringe needle after a kind of eyeball, solve prior art presence can not carry out the joint injection in ball week after ball simultaneously, and syringe needle is pierced into depth and is difficult to control, and decoction often occurs and flows backwards phenomenon, the problem of easily causing optic nerve injury.Including needle handle, needle body and needle point, it is characterised in that：Needle body includes vertical section and segmental arc, and the cecum needle point of no injection orifice is arranged on segmental arc end, and needle body vertical section sets ball week injection micropore, and needle body segmental arc sets retrobulbar injection micropore；Needle body vertical section is connected with limited location snap ring, and the outer wall of needle body vertical section sets scale；Needle handle is made up of upper connecting cavity, anti-backflow chamber and lower connecting cavity, and the bottom of lower connecting cavity is connected with the end of needle body；The top of anti-backflow intracavitary side sets dividing plate, bottom to set sieve tray, and plunger is set between dividing plate and sieve tray.Its is reasonable in design, compact conformation, can simplify treatment operating procedure, risk is injected in shortening treatment time, reduction after ball, all injection medicines simultaneously of ball.
Description
Technical field
The utility model belongs to technical field of medical instruments, and in particular to one kind can after ball, ball week simultaneously inject medicine,
Avoid all joint injection syringe needles of ball after optic nerve injury, the eyeball of reduction injection risk.
Background technology
It is the conventional injecting method of ophthalmology to be injected after eyeball with ball week, medicine rapidly and accurately can be acted on into eye office
Portion, is widely used in the treatment and various ophthalmologic operation local anaesthesia of ophthalmology disease.Current fundus oculi disease is often led to
Cross vitreous chamber direct injection medicine and reach therapeutic purposes, such as inject the anti-neovascularization growth factor, hormone etc., but vitreum is noted
Many complication may be produced by penetrating, such as intraocular hemorrhage, detachment of retina, Cataractogenesis, intraocular infection, and harm is serious,
And the medicine need to be injected repeatedly, risk is high.
After traditional eyeball, inject in ball week using No. 5 long syringe needles of gear division, the syringe needle is staight needle head, and injection orifice is in needle tip
Portion, operates complex, depth of needle and angle requirement high, and needs repeatedly turnover pin to be operated.If to carry out simultaneously
Ball week joint injection, is operated complex, it is necessary to inserting needle, and injection orifice easily causes optic nerve in needle tip repeatedly after ball
Damage, risk is larger.
Reported according to Patents documents, publication No. CN102813996A " injection needle under Tenon's capsules after eye ball "
Including a hollow spike body, body portion is the arch section for meeting eyeball radian characteristic, and syringe needle front end portion is closure
Passivity head, pin hole is distributed in the both sides of syringe needle end.The patent application only simply describes spike body and carried
Arch section, does not specifically describe its design feature；And because this syringe needle is blunt nosed pin, in surgical procedure, it is necessary to first
It can be used after conjunctiva on eyeball is cut off, it is very inconvenient；The pin hole of syringe needle end both sides, is also unfavorable for the slow of decoction
Flowing, influences injection effect.Moreover, the injection needle of the patent application can not carry out the joint injection in ball week after ball simultaneously, make
Often occurs the phenomenon of decoction refluence during, the piercing depth of syringe needle is difficult to control, and easily causes optic nerve injury.Therefore have must
Will to after the eyeball of prior art, all injection needles of ball are improved.
Utility model content
The utility model can be after ball, all injection medicines simultaneously of ball there is provided one kind aiming above mentioned problem, it is to avoid regarding god
Through damage, all joint injection syringe needles of ball after the eyeball of injection risk are reduced.
The technical scheme that the utility model is used is：Joint injection syringe needle includes needle handle ball week after the eyeball, needle body and
Needle point, it is characterised in that：The needle body includes vertical section, and the bottom of vertical section is connected with segmental arc, and the needle point is arranged on arc
The end of shape section, needle point is the cecum without injection orifice；It is provided with ball week injection micropore, needle body segmental arc and sets in needle body vertical section
Retrobulbar injection micropore is equipped with, the ball week being arranged on needle body injects micropore and retrobulbar injection micropore is respectively positioned on the one of close eyeball
Side；Needle body vertical section is connected with limited location snap ring, and limited location snap ring is located at outside the top of ball week injection micropore, needle body vertical section
Wall is provided with scale；The needle handle includes upper connecting cavity, and the bottom of upper connecting cavity is provided with anti-backflow chamber, the bottom of anti-backflow chamber
It is provided with lower connecting cavity, lower connecting cavity side wall and is provided with observation window, the bottom of lower connecting cavity and the upper end of needle body vertical section
It is connected；The top of anti-backflow intracavitary side, which is provided with the middle of dividing plate, dividing plate, is provided with manhole, and the bottom of anti-backflow intracavitary side is set
It is equipped with sieve tray；Be provided with plunger between dividing plate and sieve tray, the height of plunger be less than between hollow clapboard and sieve tray away from
From the diameter of its upper end is more than the diameter of dividing plate manhole.
The plunger being arranged between dividing plate and sieve tray is truncated conical shape, and the upper bottom diameter positioned at dividing plate one end is big,
Bottom diameter positioned at sieve tray one end is small.When being flow backwards in order to decoction, the manhole that plunger is closed in the middle of dividing plate in time.
The arc diameter of the needle body segmental arc is more than 24mm；Ball week injection micropore in the needle body vertical section, distance
The vertical range of needle point is 20mm；Retrobulbar injection micropore on the needle body segmental arc, is 2~5mm apart from the distance of needle point.With
Needle point is avoided to be strayed into optic nerve, the damage for causing medicine to be directly entered caused by optic nerve.
The plunger being arranged between dividing plate and sieve tray is rubber stopper.
The beneficial effects of the utility model：Because the utility model uses the needle body being made up of vertical section and segmental arc, if
Put and set in the cecum needle point without injection orifice in segmental arc end, needle body vertical section on ball week injection micropore, needle body segmental arc
Retrobulbar injection micropore is set, and the ball week being arranged on needle body injects micropore and retrobulbar injection micropore is respectively positioned on the one of close eyeball
Side；Needle body vertical section is connected with limited location snap ring, and limited location snap ring is located at outside the top of ball week injection micropore, needle body vertical section
Wall sets scale；Under the anti-backflow chamber that needle handle is set by upper connecting cavity, upper connecting cavity bottom, and the setting of anti-backflow chamber bottom
Connecting cavity is constituted, and the bottom of lower connecting cavity is connected with the end of needle body vertical section；The top of anti-backflow intracavitary side sets dividing plate, every
Manhole is set in the middle of plate, and the bottom of anti-backflow intracavitary side sets sieve tray, the knot of plunger is set between dividing plate and sieve tray
Configuration formula, so its is reasonable in design, compact conformation, the crooked radian of needle body segmental arc meets the anatomical structure of eyeball and eye socket,
And can after ball, inject medicine simultaneously in ball week, simplify treatment operating procedure, shorten treatment time, be prevented effectively from medicine and be strayed into and regard
The optic nerve injury that neurolemma is caused, reduction injection risk.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is a kind of structural representation of the needle body in Fig. 1.
Fig. 3 is a kind of structural representation of the needle handle in Fig. 1.
Fig. 4 is a kind of structural representation of the sieve tray in Fig. 3.
Number explanation in figure：1 needle handle, 2 needle bodies, 3 needle points, 4 retrobulbar injection micropores, 5 balls week injection micropore, 6 limited location snap rings,
7 vertical sections, 8 segmental arcs, 9 eyeballs, 10 scales, connecting cavity, 12 anti-backflow chambers, 13 times connecting cavities, 14 sieve trays, 15 posts on 11
Plug, 16 dividing plates, 17 manholes, 18 observation windows.
Embodiment
Concrete structure of the present utility model is described in detail according to Fig. 1~4.The all joint injection syringe needles of ball include pin after the eyeball
Handle 1, the needle body 2 of the lower end of needle handle 1 connection, and the needle point 3 that the end of needle body 2 is set, wherein needle body 2 is by vertical section 7, vertical section 7
The segmental arc 8 of bottom connection, the needle point 3 that the end of segmental arc 8 is set is constituted；The needle point 3 of the end of segmental arc 8 is designed to no injection orifice
Cecum structure type, the bevel direction of needle point 3 is towards the direction of eyeball 9, it is to avoid eyeball is accidentally injured in therapeutic process.The vertical section 7 of needle body 2
On be provided with the ball week injection micropore 5 used for the injection of ball week, be provided with the segmental arc 8 of needle body 2 and used for retrobulbar injection
Retrobulbar injection micropore 4；Be arranged on needle body 2 ball week injection micropore 5 and retrobulbar injection micropore 4 be respectively positioned on the outer surface of needle body 2,
Close to the side of eyeball 9, fully contacted in order to the medicine of injection with eyeball affected part.In order to avoid needle point 3 be strayed into optic nerve,
Cause medicine to be directly entered optic nerve and cause damage, the arc diameter of the segmental arc 8 of needle body 2 can be more than 24mm；The vertical section of needle body 2
The vertical range of the centre distance needle point 3 of ball week injection micropore 5 on 7 can be 20mm；Noted after ball on the segmental arc 8 of needle body 2
The air line distance for penetrating the centre distance needle point 3 of micropore 4 can be 2~5mm.
The vertical section 7 of needle body 2 is connected with the limited location snap ring 6 for controlling needle body 2 to be pierced into depth, the position of limited location snap ring 6
The top of ball week injection micropore 5 is arranged on, and the outer wall of the vertical section 7 of needle body 2 is provided with scale 10；Limited location snap ring 6 can be
Moved up and down in the range of the outside of 2 vertical section of needle body 7, the segment length with scale 10 and fixed, it is deep with the piercing for adjusting needle body 2
Degree, it is to avoid damage is caused to optic nerve.According to specifically used needs, limited location snap ring 6 and the connected mode of the vertical section 7 of needle body 2 can
With using existing movable connection methods such as threaded connections.
The anti-backflow chamber 12 that needle handle 1 is then set by upper connecting cavity 11, the upper bottom of connecting cavity 11, and the bottom of anti-backflow chamber 12
The lower connecting cavity 13 set is constituted；The bottom of lower connecting cavity 13 is connected with the upper end of the vertical section 7 of needle body 2；In order to confirm have
Without blood back phenomenon, it is ensured that the security of normal injection decoction, it is provided with the side wall of lower connecting cavity 13 for seeing whether back
The transparent windows 18 of blood.The inside upper part of anti-backflow chamber 12 positioned at the middle part of needle handle 1, being provided with intermediate arrangement has manhole 17
Dividing plate 16, the bottom of the inner side of anti-backflow chamber 12 is provided with the sieve tray 14 for carrying some small through hole thereon.In order to inject
When occurring the situation of decoction refluence in journey, the manhole 17 of the centre of dividing plate 16, dividing plate 16 and sieve tray can be closed in time
The plunger 15 of truncated conical shape is provided between 14, truncated cone-shaped plunger 15 is located at being relatively large in diameter for the upper bottom of the one end of dividing plate 16, round platform
The diameter that shape plunger 15 is located at the bottom of the one end of sieve tray 14 is smaller；And truncated cone-shaped plunger 15 is located at the upper bottom of the one end of dividing plate 16
（Upper end）Diameter be more than the diameter of the manhole 17 of dividing plate 16 so that truncated cone-shaped plunger 15 is when decoction flows backwards, rising
After block the manhole 17 of dividing plate 16, prevent decoction from flowing backwards；The height of truncated cone-shaped plunger 15 is less than hollow clapboard 16 and sieve aperture
The distance between plate 14, so that truncated cone-shaped plunger 15 can be in the interior play up and down of anti-backflow chamber 12, so as to be turned on and off dividing plate
16 manhole 17.According to needs are used, the truncated cone-shaped plunger 15 being arranged between dividing plate 16 and sieve tray 14 is rubber stopper.
The all joint injection syringe needles of ball when in use, first according to the specific size of patient's eyeball, pass through regulation after the eyeball
Upper-lower position of the limited location snap ring 6 in the outside of 2 vertical section of needle body 7, the length range with scale 10, to limit the thorn of needle body 2
Enter depth, it is to avoid damage is caused to optic nerve.The needle point 3 of the end of 2 segmental arc of needle body 8 is penetrated into socket of the eye chamber again, and is deep into socket of the eye chamber
It is interior, because the crooked radian of the segmental arc 8 of needle body 2 meets the anatomical structure of eyeball and eye socket, so go deep into after socket of the eye chamber can edge for needle point 3
Eye socket radian directional-rotation, to be noted by the ball week on the retrobulbar injection micropore 4 on the segmental arc 8 of needle body 2 and the vertical section 7 of needle body 2
Micropore 5 is penetrated, respectively after ball, all injection medicines simultaneously of ball；To simplify the operating procedure for the treatment of, shorten treatment time, it is to avoid medicine
Thing is strayed into the optic nerve injury that vagina nervi optici is caused, and reduces the risk of injection.Further, since the needle point 3 of the end of segmental arc 8 is used
Cecum structure type without injection orifice, and the bevel direction of needle point 3 is towards the direction of eyeball 9, so as to avoid in therapeutic process by mistake
Hinder the situation of eyeball.Before normal injection decoction, it need to confirm that nothing is returned by the transparent windows 18 on the lower side wall of connecting cavity 13
After blood phenomenon, decoction can be injected slowly.
When the decoction of injection is pressed into anti-backflow chamber 12 by the upper connecting cavity 11 of needle handle 1, due to upper connecting cavity
Fluid pressure is more than fluid pressure in anti-backflow chamber 12 in 11, thus elastomeric material be made lightweight, elastic truncated cone-shaped plunger 15
The decoction flowed is pressed down so that the upper bottom of truncated cone-shaped plunger 15 is not in contact with the dividing plate 16 of top, so that decoction passes through
The manhole 17 at the middle part of dividing plate 16 is entered in anti-backflow chamber 12, then is flowed into via some through holes on sieve tray 14 with
In the connected needle body 2 in the bottom of connecting cavity 13.When refluence situation occurs in liquid medicine injection, because fluid pressure is big in lower connecting cavity 13
In fluid pressure in anti-backflow chamber 12, so the decoction that lightweight, elastic truncated cone-shaped plunger 15 are flow backwards is lifted up, make truncated cone-shaped
The upper bottom of plunger 15 is in contact with the dividing plate 16 of top, so that the manhole 17 at the middle part of dividing plate 16 is sealed up, to prevent decoction
Refluence, the generation of the first-class phenomenon of clog needle, strengthen injection safety.
Claims (4)
1. ball week joint injection syringe needle after a kind of eyeball, including needle handle（1）, needle body（2）And needle point（3）, it is characterised in that：It is described
Needle body（2）Including vertical section（7）, vertical section（7）Bottom be connected with segmental arc（8）, the needle point（3）It is arranged on segmental arc
（8）End, needle point（3）For the cecum without injection orifice；Needle body（2）Vertical section（7）On be provided with ball week injection micropore（5）, pin
Body（2）Segmental arc（8）On be provided with retrobulbar injection micropore（4）, it is arranged on needle body（2）On ball week injection micropore（5）After ball
Inject micropore（4）It is respectively positioned on close to eyeball（9）Side；Needle body（2）Vertical section（7）It is connected with limited location snap ring（6）, it is spacing
Snap ring（6）Positioned at ball week injection micropore（5）Top, needle body（2）Vertical section（7）Outer wall be provided with scale（10）；The pin
Handle（1）Including upper connecting cavity（11）, upper connecting cavity（11）Bottom be provided with anti-backflow chamber（12）, anti-backflow chamber（12）Bottom
It is provided with lower connecting cavity（13）, lower connecting cavity（13）Observation window is provided with the wall of side（18）, lower connecting cavity（13）Bottom and pin
Body（2）Vertical section（7）Upper end be connected；Anti-backflow chamber（12）The top of inner side is provided with dividing plate（16）, dividing plate（16）It is middle
It is provided with manhole（17）, anti-backflow chamber（12）The bottom of inner side is provided with sieve tray（14）；Dividing plate（16）And sieve tray
（14）Between be provided with plunger（15）, plunger（15）Height be less than hollow clapboard（16）And sieve tray（14）The distance between,
Plunger（15）The diameter of upper end is more than dividing plate（16）Manhole（17）Diameter.
2. ball week joint injection syringe needle after eyeball according to claim 1, it is characterised in that：It is described to be arranged on dividing plate（16）
And sieve tray（14）Between plunger（15）For truncated conical shape, positioned at dividing plate（16）The upper bottom diameter of one end is big, positioned at sieve tray
（14）The bottom diameter of one end is small.
3. ball week joint injection syringe needle after eyeball according to claim 1, it is characterised in that：The needle body（2）Segmental arc
（8）Arc diameter be more than 24mm；The needle body（2）Vertical section（7）On ball week injection micropore（5）, apart from needle point（3）Hang down
Straight distance is 20mm；The needle body（2）Segmental arc（8）On retrobulbar injection micropore（4）, apart from needle point（3）Distance for 2~
5mm。
4. ball week joint injection syringe needle after eyeball according to claim 1, it is characterised in that：It is described to be arranged on dividing plate（16）
And sieve tray（14）Between plunger（15）For rubber stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621288171.XU CN206482723U (en) | 2016-11-29 | 2016-11-29 | Ball week joint injection syringe needle after a kind of eyeball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621288171.XU CN206482723U (en) | 2016-11-29 | 2016-11-29 | Ball week joint injection syringe needle after a kind of eyeball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206482723U true CN206482723U (en) | 2017-09-12 |
Family
ID=59768889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621288171.XU Active CN206482723U (en) | 2016-11-29 | 2016-11-29 | Ball week joint injection syringe needle after a kind of eyeball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206482723U (en) |
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2016
- 2016-11-29 CN CN201621288171.XU patent/CN206482723U/en active Active
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| GR01 | Patent grant |