CN2593798Y - Disposable indwelling needle for venous transfusion - Google Patents
Disposable indwelling needle for venous transfusion Download PDFInfo
- Publication number
- CN2593798Y CN2593798Y CN 02234441 CN02234441U CN2593798Y CN 2593798 Y CN2593798 Y CN 2593798Y CN 02234441 CN02234441 CN 02234441 CN 02234441 U CN02234441 U CN 02234441U CN 2593798 Y CN2593798 Y CN 2593798Y
- Authority
- CN
- China
- Prior art keywords
- infusion
- needle
- conduit
- valve core
- spring
- 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 - Fee Related
Links
- 238000001802 infusion Methods 0.000 claims abstract description 49
- 210000003462 vein Anatomy 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 239000008280 blood Substances 0.000 claims abstract description 13
- 210000004369 blood Anatomy 0.000 claims abstract description 13
- 239000012528 membrane Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 230000017531 blood circulation Effects 0.000 claims description 2
- 239000003814 drug Substances 0.000 claims 1
- 241000283216 Phocidae Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a disposable retaining needle for venous infusion, which has the advantage of convenient, safe and sanitary use. An air exhausting film, a needle tube seat and a needle tip tube are made into an integral body; an injection piece, a conduit seat, a conduit, an infusion switch-in mouth, a spring and a check valve core are made into an integral body; the two integral bodies are assembled together to form a retaining needle. When the utility model is used, air exhausted by blood flowing across the needle tip tube is directly exhausted by the air exhausting film made with the needle tube seat into an integral body. After the needle tip tube is drawn out of the vein, the conduit seat is sealed by the injection piece made with the conduit seat into an integral body. Physic liquor is infused, and physic liquor infusion for many times is completed by the infusion switch-in mouth, the spring and the check valve core.
Description
Affiliated technical field:
This utility model relates to a kind of can the indwelling and realize the repeatedly medical apparatus and instruments of needleless infusion medicinal liquid in vein, self sealss, defeated, notes convenient function are especially arranged from aerofluxus, use safety, health, easy disposable vein infusion remaining needle (being called for short remaining needle down).
Background technology:
At present, known remaining needle structure is assembled successively by screw-cap, exhaust part, needle tubing seat, catheter block, conduit, sheath.The needle point pipe is adhered on the needle tubing seat, and needle point one end exposes at needle tubing seat one end, and exhaust part is plugged in that needleless exposes an end on the needle tubing seat, and screw-cap patches on exhaust part.Conduit is fixed on the catheter block, and conduit exposes at catheter block one end.The end that the needle point pipe is exposed from duct free inserts in the catheter block, passes conduit, needle tubing seat and catheter block fix in position, the conduit periphery load onto sheath remaining needle.
During use, needle point pipe puncture vein utilizes the auxiliary puncture of needle point pipe, and conduit punctures into vein simultaneously, and blood is discharged the needle point inner air tube along the needle point pipe by exhaust part, and seeing in exhaust part has blood to flow out, and punctures successfully.At this moment, together with needle tubing seat, exhaust part, screw-cap the needle point pipe is extracted vein, screw off the screw-cap that is connected on the exhaust part, screw-cap is spun on that duct free one end seals catheter block on the catheter block again, prevent that blood is excessive, like this, conduit is promptly kept somewhere in vein.During the infusion medicinal liquid, screw off screw-cap, infusion utensil joint is inserted catheter block duct free one end get final product the infusion medicinal liquid; Infusion is finished, and screw-cap is screwed on the catheter block sealing duct seat of pulling out infusion utensil joint again.
The shortcoming of this remaining needle has: puncture successfully, pull out the needle point pipe and screw off screw-cap from catheter block at infusion medicinal liquid repeatedly and repeatedly screw on the screw-cap sealing duct seat process again, easily form blood and contact with air, form blood infection.Simultaneously, medical personnel when using remaining needle, pull out needle point pipe and infusion finish pull out infusion utensil joint after, in case forget that blood is excessive, causes malpractice with screw-cap sealing duct seat.
In sum, this remaining needle uses inconvenience, and is unhygienic, dangerous.
Summary of the invention:
Use inconvenience in order to overcome existing remaining needle, unhygienic, uneasy congruent shortcoming, this utility model provides a kind of remaining needle, easy to use, safe, health.
The technical scheme that its technical problem that solves this utility model adopts is:
Do not use exhaust part, exhaust membrane and needle tubing seat are made one, discharge the air that needle point pipe inner blood is discharged by exhaust membrane;
Do not use the screw-cap sealing, injection member and catheter block are made one, finish the needle point pipe is pulled out the rear tube seat from catheter block sealing by the injection member that elastomeric is made.
, an infusion access port is not set on catheter block, in the infusion access port, loads onto spring and non-return valve core, finish the medicinal liquid infusion by the infusion access port by catheter block duct free one end infusion medicinal liquid.
The beneficial effects of the utility model are: exhaust membrane, and the needle point pipe, the needle tubing seat is made one: injection member, catheter block, conduit, infusion access port, spring, non-return valve core are made one.Two bodies attach together, and the needle point pipe passes injection member on the catheter block, conduit, and fix in position, the cover upper jacket can become remaining needle on conduit.
During use, needle point pipe puncture vein, by the auxiliary puncture of needle point pipe, conduit punctures into vein, and blood is discharged directly the needle point inner air tube by the exhaust membrane of making one with the needle tubing seat by the needle point pipe and is discharged; Together with the needle tubing seat, exhaust membrane is extracted vein with the needle point pipe, and catheter retaining is in vein, and injection member is pulled out back reinstatement sealing duct seat at the needle point pipe, and blood can excessively can not contact with air yet.During the infusion medicinal liquid, infusion utensil joint is inserted the infusion access port, utilize the check-valves switching function to finish the medicinal liquid infusion.
Like this, blood can excessively can not contact with air yet, pulls out needle point pipe rear tube and can keep somewhere easy to use, safe, health.
Description of drawings:
Below in conjunction with drawings and Examples this utility model is further specified:
Diagram is this utility model embodiment vertical section structural map.
Among the figure 1, the needle tubing seat: 2, exhaust membrane; 3, needle point pipe; 4, injection member; 5, catheter block; 6, infusion access port; 7, non-return valve core; 8, spring; 9, conduit.
The specific embodiment:
In the diagram, needle point pipe (3) is adhesively fixed and after needle tubing seat (1) is gone up exhaust membrane (3) is adhesively fixed on needle tubing seat (1).So, needle tubing seat (1), exhaust membrane (2), needle point pipe (3) is made one; Non-return valve core (7), spring (8) are packed into after infusion access port (6) and catheter block (5) be adhesively fixed, and conduit (9) is fixed in the catheter block, are integral after again injection member (4) being fixed into catheter block; Two bodies attach together, and needle point pipe (3) passes injection member (4), conduit (9) back fix in position.
In the illustrated embodiment, needle point pipe (3) punctures into vein, utilizes the auxiliary puncture of needle point pipe (3), and conduit (9) punctures into vein, and blood flow in the needle tubing seat (1) along needle point pipe (3), and the needle point inner air tube that blood is discharged is located direct discharge by exhaust membrane (2).At this moment, needle point pipe (3) is together extracted vein together with needle tubing seat (1) exhaust membrane (2), injection member (5), catheter block (5), infusion access port (6), non-return valve core (7), spring (8) is kept somewhere in vein and is fixed in the vein place with conduit (9).After needle point pipe (3) pulled away injection member (4), injection member restored to the original state and realizes catheter block (5) sealing.
During the infusion medicinal liquid, infusion utensil joint inserts in the infusion access port (6), and infusion utensil joint is pushed spring (8) open, and medicinal liquid is infused in the vein; Infusion is pulled out infusion utensil joint after finishing, spring (8) pushing non-return valve core (7), non-return valve core sealing infusion channel.
Claims (4)
1, a kind of disposable vein infusion remaining needle is made up of exhaust membrane, needle tubing seat, needle point pipe, injection member, catheter block, conduit infusion access port, spring, non-return valve core, and it is characterized in that: exhaust membrane, needle tubing seat, needle point control are integral; Injection member, catheter block, conduit, infusion access port, spring, non-return valve core are made one; Two bodies attach together and form.
2, disposable vein infusion remaining needle according to claim 1 is characterized in that: exhaust membrane, the control of needle tubing seat needle point are integral, and the air that blood flow out to be discharged is directly discharged by the exhaust membrane of making one with the needle tubing seat.
3, disposable vein infusion remaining needle according to claim 1, it is characterized in that: in the one of making by injection member, catheter block, conduit infusion access port, spring, non-return valve core, after the needle point pipe is pulled out from conduit, catheter block, injection member, by injection member sealing duct seat, stop blood excessive and contact with air.
4, disposable vein infusion remaining needle according to claim 1 is characterized in that: in the one of being made by injection member, catheter block, conduit, infusion access port, spring, non-return valve core, establish non-return valve core in the infusion access port, spring.During the infusion medicinal liquid, infusion utensil joint is pushed spring open, and medicinal liquid is infused into vein; Infusion is finished and is extracted infusion utensil joint, and spring promotes non-return valve core, non-return valve core sealing infusion medicine liquid channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02234441 CN2593798Y (en) | 2002-05-09 | 2002-05-09 | Disposable indwelling needle for venous transfusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02234441 CN2593798Y (en) | 2002-05-09 | 2002-05-09 | Disposable indwelling needle for venous transfusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2593798Y true CN2593798Y (en) | 2003-12-24 |
Family
ID=33709234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02234441 Expired - Fee Related CN2593798Y (en) | 2002-05-09 | 2002-05-09 | Disposable indwelling needle for venous transfusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2593798Y (en) |
-
2002
- 2002-05-09 CN CN 02234441 patent/CN2593798Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH07303697A (en) | Port cannula device | |
| CN201257220Y (en) | Back flow prevention retention needle | |
| CN2593798Y (en) | Disposable indwelling needle for venous transfusion | |
| CN203400364U (en) | Disposable infusion set capable of automatically stopping infusion and exhausting air | |
| CN213312274U (en) | Arteriovenous indwelling needle sleeve for hemodialysis puncture | |
| CN201880126U (en) | Venous retention needle | |
| CN1597000A (en) | Anti-countercurrent arteriovenous retention needle | |
| CN2588993Y (en) | Multifunctional transfusion system | |
| CN210301905U (en) | Anti-reflux remaining needle | |
| CN200960334Y (en) | Leak-proof, seepage-proof, and blood-return-proof infusion set for convenient dosing | |
| CN206239819U (en) | A kind of closed straight type remaining needle | |
| CN202191542U (en) | antibacterial anti-reflux remaining needle | |
| CN2820201Y (en) | Closed polyester venous retaining needle | |
| CN223541918U (en) | Multifunctional switching device for central venous access blood sampling | |
| CN2572975Y (en) | Multifunctional transfusion system | |
| CN2577862Y (en) | Infusion systems | |
| CN217489439U (en) | An indwelling needle that can prevent blood reflux | |
| CN216319238U (en) | Integrated intravenous catheter medication link tube | |
| CN2151753Y (en) | Multifunction disposable infusion device | |
| CN216091700U (en) | Indwelling needle type infusion device | |
| CN2406672Y (en) | Venous transfusion device against backflow | |
| CN219090570U (en) | A Y-shaped tube adjustable indwelling needle | |
| CN101607101A (en) | Disposable trocar infusion apparatus | |
| CN2185129Y (en) | Multifunctional transfusion system | |
| CN2750814Y (en) | safety infusion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |