CN208582807U - A kind of catheter needle of fixing-stable - Google Patents
A kind of catheter needle of fixing-stable Download PDFInfo
- Publication number
- CN208582807U CN208582807U CN201820345929.1U CN201820345929U CN208582807U CN 208582807 U CN208582807 U CN 208582807U CN 201820345929 U CN201820345929 U CN 201820345929U CN 208582807 U CN208582807 U CN 208582807U
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- waterflood path
- casing
- needle
- fixing
- fixed card
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Abstract
The utility model discloses a kind of catheter needles of fixing-stable.Including casing, the end of casing is connected with fixation kit, and needle core is equipped in casing, and the point of needle core runs through fixation kit；The fixation kit includes fixed card, the side of fixed card is equipped with interconnecting piece, the other side of fixed card is equipped with piercing portion, waterflood path is additionally provided in the inner wall of fixation kit, the entrance of waterflood path is set on interconnecting piece, the outlet of waterflood path is set on the side wall in piercing portion, elastic sack body is equipped in the waterflood path of outlet, the open end of elastic sack body is connected to waterflood path and is fixed on waterflood path side wall；The entrance of waterflood path is connect with injection guiding tube, and the inlet for injecting guiding tube is located on the side wall of casing；The point of the needle core sequentially passes through interconnecting piece, fixed card and piercing portion.The utility model has the characteristics that structure is simple and good fixing effect.
Description
Technical field
The utility model relates to a kind of device of medical field, especially a kind of catheter needle of fixing-stable.
Background technique
The fixed master of aortic perfusion needle used in cardiac operation is to rely on aorta wall to suture at present
One needle fixes catheter needle after tightening.This fixation is the outside that catheter needle is fixed on aorta wall, and is in aorta
Have elevated pressures, aorta wall tension it is larger when can just be fixed.Above-mentioned fixation is easy to cause the appearance of two kinds of situations:
First is that the head end of catheter needle still can slide after outside is fixed, the inclination of perfusion Aculeata slightly may can make that syringe needle is perfused
End skids off aorta wall, and especially in pediatric operation, since aorta ascendens internal diameter is smaller, perfusion needle end is short, very little width
The offset of degree this may result in catheter needle and skid off；Another situation is that tightening suture when aorta tension is higher, and wait
Stop to heart, cuts after aorta or before art closes the border aorta notch, recovering beat of heart, aorta is in low-tension shape
State often unclamps the fixation of catheter needle before this when, catheter needle is caused to skid off aorta wall.Catheter needle fall off as
Fruit is occurred during perfusion, it may appear that heart perfusion is bad, and warm ischemia time extends, and Anabiosis after operation is difficult even to be occurred
Postoperative the earth's core row, severe one can lead to death；If catheter needle skids off the moment for occurring from and being just perfused after blocking, inserts fill again
Note needle can not only cause because of time delays Heart after Heat ischemia, heart over filling and there is the pernicious of the threat to life such as ventricular fibrillation
Arrhythmia cordis, and the risks of the severe complications such as the interlayer for puncturing and inducing can be increased because ascending aortic pressure power at this time is excessively high.
If falling off for catheter needle is occurred during after aorta is open for suck-back exhaust, probably due to gas cannot be suitable
Benefit is discharged and gas embolism occurs and cause the severe complications such as cerebral infarction, hemiplegia.It can be seen from the above, falling off for catheter needle will cause sternly
The problem of weighing consequence, how solving the problems, such as " falling off for catheter needle " is as urgently to be resolved at present.
Utility model content
The purpose of the utility model is to provide a kind of catheter needles of fixing-stable.The utility model has structure simple
And the characteristics of good fixing effect.
The technical solution of the utility model includes: a kind of catheter needle of fixing-stable, including casing, the end of casing are connected with solid
Determine component, needle core is equipped in casing, the point of needle core runs through fixation kit；The fixation kit includes fixed card, Gu
The side for determining card is equipped with interconnecting piece, and the other side of fixed card is equipped with piercing portion, is additionally provided with water filling in the inner wall of fixation kit
The entrance in channel, waterflood path is set on interconnecting piece, and the outlet of waterflood path is set on the side wall in piercing portion, the note close to outlet
Elastic sack body is equipped in aquaporin, the open end of elastic sack body is connected to waterflood path and is fixed on waterflood path side wall；Water filling
The entrance in channel is connect with injection guiding tube, and the inlet for injecting guiding tube is located on the side wall of casing；The interconnecting piece with
Internal surface of sleeve pipe connection；The point of the needle core sequentially passes through interconnecting piece, fixed card and piercing portion.
In the catheter needle of fixing-stable above-mentioned, observation side opening is additionally provided on the needle core in casing.
In the catheter needle of fixing-stable above-mentioned, positioning ring is additionally provided on the outer wall of the needle core in casing.
In the catheter needle of fixing-stable above-mentioned, gas vent is additionally provided on the side wall in the piercing portion.
In the catheter needle of fixing-stable above-mentioned, outlet and the fixed card lower surface distance L of waterflood path are 0.3-
2mm。
In the catheter needle of fixing-stable above-mentioned, the external injection individual event switch three of inlet of the injection guiding tube
It is logical.
Beneficial effect
Compared with prior art, the utility model is in the inner wall of the interconnecting piece of fixation kit, fixed card and piercing portion
The entrance of waterflood path equipped with connection, waterflood path is set on interconnecting piece, and outlet is set on the side wall in piercing portion；Close to outlet
Waterflood path in be equipped with elastic sack body, the open end of elastic sack body is connected to waterflood path and is fixed on waterflood path side wall,
The entrance of waterflood path is connect with injection guiding tube, and the inlet for injecting guiding tube is located on the side wall of casing；In use, by needle
The point of core is inserted into aorta together with the piercing portion of fixation kit, exits needle core, passes through the inlet of injection guiding tube later
To waterflood path saline injection, as the injection elastic sack body of physiological saline is gradually swollen, finally in elastic sack body quilt
The outlet of expansion waterflood path simultaneously forms a sacculus in exit, which is the folder formed with fixed card to vascular wall
It holds, and then well prevents falling off for catheter needle, implement to be perfused later again；The simple structure catheter needle be inserted into blood vessel when not
It will affect the normal insertion of catheter needle, after such insertion, catheter needle can be formed and be fixed well, good fixing effect, not only such as
This, since the liquid of injection is physiological saline, even if elastic sack body ruptures, the interior liquid (physiological saline) flowed out will not be right
Patient damages, and use is safe；When perfusion is completed to extract casing, by the physiological saline in waterflood path by injection guiding tube
It draws, elastic sack body gradually tapers up in re-injection aquaporin at this time, can be into after elastic sack body is taken in into waterflood path completely
Row is pulled out.
In conclusion the utility model has the characteristics that structure is simple and good fixing effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram at the A of Fig. 1.
The label in accompanying drawing is: 1- casing, 2- fixation kit, 21- fixed card, 22- interconnecting piece, 23- piercing portion, 231-
Gas vent, 24- waterflood path, 241- entrance, the outlet 242-, 25- elastic sack body, 3- needle core, 31- observe side opening, 32- positioning
Ring, 4- inject guiding tube.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples, but is not intended as to the utility model
The foundation of limitation.
Embodiment 1.A kind of catheter needle of fixing-stable is constituted as illustrated in fig. 1 and 2, including casing 1, and the end of casing 1 connects
It is connected to fixation kit 2, needle core 3 is equipped in casing 1, the point of needle core 3 runs through fixation kit 2；The fixation kit 2 includes
Fixed card 21, the side of fixed card 21 are equipped with interconnecting piece 22, and the other side of fixed card 21 is equipped with piercing portion 23, fixed group
Waterflood path 24 is additionally provided in the inner wall of part 2, the entrance 241 of waterflood path 24 is set on interconnecting piece 22, and waterflood path 24 goes out
Mouth 242 is set on the side wall in piercing portion 23, equipped with elastic sack body 25, elastic sack body 25 in the waterflood path 24 of outlet 242
Open end be connected to waterflood path 24 and be fixed on 24 side wall of waterflood path；The entrance 241 of waterflood path 24 and injection guide
Pipe 4 connects, and the inlet of injection guiding tube 4 is located on the side wall of casing 1；The interconnecting piece 22 is connect with 1 inner wall of casing；Institute
The point for the needle core 3 stated sequentially passes through interconnecting piece 22, fixed card 21 and piercing portion 23.
The external injection individual event of inlet of injection guiding tube 4 above-mentioned switchs threeway.Three-way cock is closed after water filling, with
Prevent liquid reflux in sacculus.
Observation side opening 31 is additionally provided on the needle core 3 in casing 1.By observing side opening 31, it is able to confirm that catheter needle is
No insertion blood vessel.
Positioning ring 32 is additionally provided on the outer wall of needle core 3 in casing 1.By the way that positioning ring 32 is arranged, it can be ensured that needle
The point of core 3 and casing 1 are coaxial, and it is more accurate to make to puncture.
Gas vent 231 is additionally provided on the side wall in piercing portion 23 above-mentioned.Achieve the purpose that exhaust with this configuration.
The outlet 242 of waterflood path 24 above-mentioned is 0.3-2mm with 21 lower surface distance L of fixed card.The structure, makes
The sacculus that must be formed between 21 lower surface of fixed card at a distance from it is appropriate so that it is best to grip effect.
In use, the piercing portion 23 by the point of needle core 3 together with fixation kit 2 is inserted into aorta, observation is being observed
When side opening 31 has blood outflow, illustrate to be inserted into blood vessel, exit needle core 3, later by the inlet of injection guiding tube 4 to water filling
24 saline injection of channel, as the injection elastic sack body 25 of physiological saline is gradually swollen, finally in 25 quilt of elastic sack body
The outlet 242 of expansion waterflood path 24 simultaneously forms a sacculus in exit, which forms with fixed card 21 to blood vessel
The clamping of wall, prevents catheter needle from falling off, and implements to be perfused later again；It, will be in waterflood path 24 when perfusion is completed to extract casing 1
Physiological saline is drawn by injection guiding tube 4, and elastic sack body 25 gradually tapers up in re-injection aquaporin 24 at this time, when elastic sack body 25 is complete
It can be pulled out after in full income to waterflood path 24.
Claims (6)
1. a kind of catheter needle of fixing-stable, it is characterised in that: including casing (1), the end of casing (1) is connected with fixation kit
(2), needle core (3) are equipped in casing (1), the point of needle core (3) runs through fixation kit (2)；The fixation kit (2) includes
The side of fixed card (21), fixed card (21) is equipped with interconnecting piece (22), and the other side of fixed card (21) is equipped with piercing portion
(23), it is additionally provided with waterflood path (24) in the inner wall of fixation kit (2), the entrance (241) of waterflood path (24) is set to interconnecting piece
(22) on, the outlet (242) of waterflood path (24) is set on the side wall of piercing portion (23), the waterflood path close to outlet (242)
(24) elastic sack body (25) are equipped in, the open end of elastic sack body (25) is connected to waterflood path (24) and is fixed on waterflood path
(24) on side wall；The entrance (241) of waterflood path (24) is connect with injection guiding tube (4), injects the inlet position of guiding tube (4)
In on the side wall of casing (1)；The interconnecting piece (22) is connect with casing (1) inner wall；The point of the needle core (3) is successively
Through interconnecting piece (22), fixed card (21) and piercing portion (23).
2. the catheter needle of fixing-stable according to claim 1, it is characterised in that: on the needle core (3) in casing (1)
It is additionally provided with observation side opening (31).
3. the catheter needle of fixing-stable according to claim 1 or 2, it is characterised in that: the needle core in casing (1)
(3) positioning ring (32) are additionally provided on outer wall.
4. the catheter needle of fixing-stable according to claim 1 or 2, it is characterised in that: the side in the piercing portion (23)
Gas vent (231) are additionally provided on wall.
5. the catheter needle of fixing-stable according to claim 1 or 2, it is characterised in that: the outlet of waterflood path (24)
It (242) is 0.3-2mm with fixed card (21) lower surface distance L.
6. the catheter needle of fixing-stable according to claim 1 or 2, it is characterised in that: the injection guiding tube (4)
The external injection individual event of inlet switchs threeway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820345929.1U CN208582807U (en) | 2018-03-14 | 2018-03-14 | A kind of catheter needle of fixing-stable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820345929.1U CN208582807U (en) | 2018-03-14 | 2018-03-14 | A kind of catheter needle of fixing-stable |
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| Publication Number | Publication Date |
|---|---|
| CN208582807U true CN208582807U (en) | 2019-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820345929.1U Active CN208582807U (en) | 2018-03-14 | 2018-03-14 | A kind of catheter needle of fixing-stable |
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| Country | Link |
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| CN (1) | CN208582807U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108451604A (en) * | 2018-03-14 | 2018-08-28 | 贵州省人民医院 | A kind of fixed catheter needle of utricule |
| CN110507395A (en) * | 2019-08-30 | 2019-11-29 | 上海长征医院 | A kind of emergency treatment arteriorrhexis turn of tidal stream system |
-
2018
- 2018-03-14 CN CN201820345929.1U patent/CN208582807U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108451604A (en) * | 2018-03-14 | 2018-08-28 | 贵州省人民医院 | A kind of fixed catheter needle of utricule |
| CN110507395A (en) * | 2019-08-30 | 2019-11-29 | 上海长征医院 | A kind of emergency treatment arteriorrhexis turn of tidal stream system |
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