CN203123184U - High pressure resistant indwelling needle - Google Patents
High pressure resistant indwelling needle Download PDFInfo
- Publication number
- CN203123184U CN203123184U CN2013201763792U CN201320176379U CN203123184U CN 203123184 U CN203123184 U CN 203123184U CN 2013201763792 U CN2013201763792 U CN 2013201763792U CN 201320176379 U CN201320176379 U CN 201320176379U CN 203123184 U CN203123184 U CN 203123184U
- Authority
- CN
- China
- Prior art keywords
- casing seat
- needle
- cannula
- sealing plug
- seal plug
- 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 - Lifetime
Links
- 230000002439 hemostatic effect Effects 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 abstract description 14
- 238000002347 injection Methods 0.000 abstract description 9
- 239000007924 injection Substances 0.000 abstract description 9
- 238000001802 infusion Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 8
- 230000008034 disappearance Effects 0.000 description 5
- 239000002872 contrast media Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 230000035764 nutrition Effects 0.000 description 3
- 235000016709 nutrition Nutrition 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Images
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a high pressure resistant indwelling needle. The indwelling needle mainly comprises a cannula, a cannula seat, a puncture needle, a connecting tube and an infusion tee, wherein the rear end of the cannula is fixedly connected in the cannula seat via a forward needle tube; a hemostatic sealing plug is installed in the cannula seat; the puncture needle is inserted through the hemostatic sealing plug and the forward needle tube hermetically and penetrates through the cannula; the cannula seat is laterally connected with the infusion tee by the connecting tube; two slots are symmetrically formed in the walls of the cannula seat and are formed at the rear of the hemostatic sealing plug; a block piece is installed in the slots and clings to the rear of the hemostatic sealing plug; and the block piece is a U-shaped clip, is radically inserted into the slots in the cannula seat, is fastened with the cannula seat and closes the cannula seat in a matching manner. The indwelling needle has a reasonable structure, is convenient to use, can effectively prevent the hemostatic sealing plug from moving backwards and prevent the hemostatic sealing plug from exiting during high-pressure injection and causing tightness loss and leakage, and is especially suitable for the high-pressure environment.
Description
Technical field
This utility model relates to a kind of remaining needle that is undertaken continuously or repeatedly infuse by venipuncture, specifically a kind of anti-high pressure remaining needle.Be specially adapted in environment under high pressure, use, as: CT enhanced ct scans technology mesohigh injector to inject contrast agent.
Background technology
We know, remaining needle is a kind of medical apparatus and instruments for the venous indwelling transfusion, it mainly includes sleeve pipe, casing seat, puncture needle, connecting leg, transfusion threeway assembly, the sleeve pipe rear end is by being fastened in the casing seat along needle tubing, hemostatic seal plug also is housed in the casing seat, puncture needle was inserted sealing-plug hermetically and along needle tubing, was positioned at sleeve pipe, and the casing seat side direction is connected with transfusion three way cock assembly by connecting leg.After medical personnel used remaining needle to the patient's vein vascular puncture, the needle tubing that will puncture was extracted from casing seat rear end and sleeve pipe, and comparatively soft sleeve portion is kept somewhere in the patient's vein blood vessel, carried out continuously to the patient or transfusion discontinuously by sleeve pipe.Be mainly used in the clinical vein puncture and carry out sick body medication and nutrition supply.The conventional configurations of remaining needle is that hemostatic seal plug is pressed in the casing seat, relies on the resistance of hemostatic seal plug and casing seat interference fit, the liquid infiltration when stoping transfusion, the sealing of remaining needle when having guaranteed conventional the transfusion.When traditional remaining needle designs according to desired use and reckon without the requirement that will bear high pressure, hemostatic seal plug can't stand that because holding high pressure is ejected when causing connecting high pressure injector and using.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiency that above-mentioned prior art can not be born high pressure, provide a kind of rational in infrastructure, easy to use, move after can effectively stoping the hemostatic seal plug that is subjected to affected by high, cause the sealing disappearance after hemostatic seal plug withdraws from when preventing high-pressure injection and the anti-high pressure remaining needle of leakage.Make remaining needle can be applicable to high-pressure injection in the CT enhanced ct scans technology.
The technical scheme in the invention for solving the above technical problem is: a kind of anti-high pressure remaining needle, mainly include sleeve pipe, casing seat, puncture needle, connecting leg, the transfusion threeway, the sleeve pipe rear end is by being fastened in the casing seat along needle tubing, hemostatic seal plug is housed in the casing seat, puncture needle was inserted hemostatic seal plug and suitable needle tubing hermetically, in sleeve pipe, the casing seat side direction is connected with the transfusion threeway by connecting leg, it is characterized in that: be arranged with two slotted eyes on the described casing seat wall, slotted eye is positioned at the hemostatic seal plug rear portion, one catch wherein is installed, and catch is close to the hemostatic seal plug rear portion.
Described catch is U-shaped card, and it radially inserts in the casing seat slotted eye, also cooperates with the casing seat fastening and closes.The intermediate gaps of U-shaped card can provide passage for the puncture needle turnover.
This utility model has been set up a catch at casing seat.Add after man-hour, hemostatic seal plug was pressed in the casing seat, catch is inserted in the casing seat slotted eye, catch can close with casing seat fastening and cooperating, catch after the fastening can provide enough support forces for mobile hemostatic seal plug after being subjected to high pressure, cause sealing disappearance after hemostatic seal plug withdraws from when preventing high-pressure injection and leakage provides CT enhanced ct scans technology mesohigh injector to inject contrast agent required sealing.Against existing technologies, this utility model is rational in infrastructure, and is easy to use, moves after can effectively stoping hemostatic seal plug, causes the sealing disappearance after hemostatic seal plug withdraws from when preventing high-pressure injection and leakage is a kind of desirable anti-high pressure remaining needle.Be applicable to the high-pressure injection in the CT enhanced ct scans technology.When sick body medication and nutrition supply are carried out in suitable venipuncture, also can be competent in the environment under high pressure and use.
Description of drawings
Below in conjunction with accompanying drawing this utility model is further specified.
Fig. 1 is composition structural representation of the present utility model.
Fig. 2 is the assembly structure sketch map of this utility model casing seat.
Fig. 3 is the structural representation of this utility model catch.
1. catch among the figure, 2. sleeve pipe, 3. casing seat, 4. hemostatic seal plug, 5. connecting leg, 6. clip, 7. transfusion threeway, 8. calparine cap, 9. protective cap, 10. puncture needle, 11. needle handles, 12. sheaths.
The specific embodiment
As can be seen from Figure 1, a kind of anti-high pressure remaining needle, mainly include sleeve pipe 2, casing seat 3, puncture needle 10, connecting leg 5, transfusion threeway 7, sleeve pipe 2 rear ends are by being fastened in the casing seat 3 along needle tubing, hemostatic seal plug 4 is housed in the casing seat 3, hemostatic seal plug 4 inserted hermetically by puncture needle 10 and along needle tubing, in sleeve pipe 2, three way type casing seat 3 side direction are connected with transfusion threeway 7 by connecting leg 5.Puncture needle 10 rear portions are provided with needle handle 11.The sleeve pipe 2 outer sheaths 12 that are provided with.Be provided with calparine cap 8 and protective cap 9 accordingly in the transfusion threeway 7.Clip 6 also is installed on the connecting leg 5.The annexation of above-mentioned composition, structure and each parts belongs to prior art, repeats no more.
It can also be seen that from Fig. 1, Fig. 2 be arranged with two slotted eyes on described casing seat 3 walls, slotted eye is positioned at hemostatic seal plug 4 rear portions, and a catch 1 wherein is installed, catch 1 is close to hemostatic seal plug 4 rear portions.
As shown in Figure 3, described catch 1 is U-shaped card, and U-shaped card is provided with the boss of two pairs of symmetries, and the fluting end of U-shaped card radially inserts in casing seat 3 slotted eyes, and boss is fastened on the slotted eye edge platform, also cooperates with the casing seat fastening and closes.Thereby U-shaped card lock is fixed on the casing seat 3.Therefore when the high pressure infusion, U-shaped card can stop hemostatic seal plug 4 to be subjected to move behind the high pressure, and the intermediate gaps of U-shaped card can provide passage for the turnover of puncture needle 10 simultaneously.
This utility model has been set up a catch at casing seat.Add after man-hour, hemostatic seal plug was pressed in the casing seat, catch is inserted in the casing seat slotted eye, catch can close with casing seat fastening and cooperating, catch after the fastening can provide enough support forces for mobile hemostatic seal plug after being subjected to high pressure, cause sealing disappearance after hemostatic seal plug withdraws from when preventing high-pressure injection and leakage provides CT enhanced ct scans technology mesohigh injector to inject contrast agent required sealing.
This utility model is rational in infrastructure, and is easy to use, moves after can effectively stoping hemostatic seal plug, causes the sealing disappearance after hemostatic seal plug withdraws from when preventing high-pressure injection and leakage.Make remaining needle can be applicable to high-pressure injection in the CT enhanced ct scans technology.When sick body medication and nutrition supply are carried out in suitable venipuncture, also can be competent in the environment under high pressure and use.
Claims (2)
1. anti-high pressure remaining needle, mainly include sleeve pipe, casing seat, puncture needle, connecting leg, transfusion threeway, the sleeve pipe rear end is by being fastened in the casing seat along needle tubing, hemostatic seal plug is housed in the casing seat, puncture needle was inserted hemostatic seal plug and suitable needle tubing hermetically, in sleeve pipe, the casing seat side direction is connected with the transfusion threeway by connecting leg, it is characterized in that: be arranged with two slotted eyes on the described casing seat wall, slotted eye is positioned at the hemostatic seal plug rear portion, one catch wherein is installed, and catch is close to the hemostatic seal plug rear portion.
2. anti-high pressure remaining needle according to claim 1, it is characterized in that: described catch is U-shaped card, it radially inserts in the casing seat slotted eye, with the casing seat fastening and cooperate and close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201763792U CN203123184U (en) | 2013-04-10 | 2013-04-10 | High pressure resistant indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201763792U CN203123184U (en) | 2013-04-10 | 2013-04-10 | High pressure resistant indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203123184U true CN203123184U (en) | 2013-08-14 |
Family
ID=48931218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201763792U Expired - Lifetime CN203123184U (en) | 2013-04-10 | 2013-04-10 | High pressure resistant indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203123184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107789703A (en) * | 2017-11-16 | 2018-03-13 | 广东龙心医疗器械有限公司 | The indwelling structure and remaining needle of a kind of remaining needle |
-
2013
- 2013-04-10 CN CN2013201763792U patent/CN203123184U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107789703A (en) * | 2017-11-16 | 2018-03-13 | 广东龙心医疗器械有限公司 | The indwelling structure and remaining needle of a kind of remaining needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |