CN102824206A - Central vein puncture needle - Google Patents
Central vein puncture needle Download PDFInfo
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- CN102824206A CN102824206A CN2012102617153A CN201210261715A CN102824206A CN 102824206 A CN102824206 A CN 102824206A CN 2012102617153 A CN2012102617153 A CN 2012102617153A CN 201210261715 A CN201210261715 A CN 201210261715A CN 102824206 A CN102824206 A CN 102824206A
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- needle
- puncture
- central vein
- tube
- point
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Abstract
The invention discloses a central vein puncture needle. One end of a needle tube is arranged on a needle base; the other end of the needle tube is a needle tip; the needle tip is conical; an inner hole of the needle tube is communicated with an inner hole of the needle base; a side hole is formed in the end of the needle tube away from the needle base; an indicating point is arranged on the needle base; the indicating point and the center of the side hole are on a straight line; and the outside diameter of the needle tube is 0.7-1mm. By the central vein puncture needle, the puncture is only needed to perform for one time during the puncture of the central vein; the indicating point consistent with the direction of the side hole of the needle tip is arranged on the needle base; and the side hole of the needle tip is fixed in the proximal direction in the process of placing a guide wire, so that a target vein is placed into the proximal direction by the guide wire; scales are marked on the needle tube and the needle tube of an expanding tube; the placement depth of the expanding tube can be accurately held when a punctuate path is expanded by the expanding tube, so that the punctuate path is completely expanded, and the placement of the central venous catheter is successfully performed; and the damage to a patient caused by repeated punctuate is avoided, and the occurrence ratio of the complication is reduced.
Description
Technical field
The present invention relates to a kind of central vein puncture needle, particularly a kind of needs puncture once just can insert central venous catheter, the few high improved central vein puncture needle of success rate of puncture complication smoothly in the success back, belongs to the medical equipment technical field.
Background technology
At present clinically, the method for the capable central vein puncture of central vein puncture instrument commonly used (is example with the puncture of way of escape right internal jugular vein): 1) patient's dorsal position, head deflection left side, site of puncture routine disinfection, hole, shop towel; 2) two horizontal finger places are point of puncture on selection sternocleidomastoid clavicle head trailing edge and the clavicle, local anesthesia; 3) connect No. 7 pins to the puncture of sternoclavicular joint direction with the 5ml syringe, needle body keeps level, and syringe keeps negative pressure; 4) the syringe pumpback is to kermesinus blood and unobstructed; Confirm that puncture needle is at internal jugular vein; Withdraw from No. 7 pins or fixing No. 7 pins unload syringe simultaneously, connect the direction puncture of 18G draw point along No. 7 pins with the blue syringe of 5ml in addition, pumpback is also unobstructed to kermesinus blood; Confirm puncture needle at internal jugular vein, insert seal wire 250mm through blue syringe afterbody; 5) fixing seal wire withdraws from the 18G draw point, inserts convergent divergent channel dilated penetration point skin to blood vessel through seal wire---the puncture pathway; 6) fixing seal wire withdraws from convergent divergent channel, inserts central venous catheter 120mm through seal wire; 7) A/C, medical dressing, pad pasting cover the site of puncture, and conduit connects the transfusion of transfusion leather strap.
As stated; Use the capable central vein puncture of clinical central vein puncture instrument commonly used at present, connect No. 7 pin pumpbacks to kermesinus blood and unobstructed with the 5ml syringe earlier, confirm that puncture needle is in internal jugular vein (once success); Withdraw from No. 7 pins or fixing No. 7 pins unload syringe simultaneously; Have only when connect the direction puncture of 18G draw point along No. 7 pins with the blue syringe of 5ml, pumpback confirms that to kermesinus blood and unobstructed puncture needle just indicates puncture successfully (secondary success) when internal jugular vein.Because: a) No. 7 pin punctures stimulate the damage that blood vessel causes; Vasospasm can take place, b) as not withdrawing from pin No. 7, though can play the fixedly effect of blood vessel; But a puncture section blood vessel can cause and subsides; C) repeated localised puncture causes the site of puncture hematoma, reason such as cause angiectopia, subside, and all giving once more, puncture has increased difficulty.When therefore the blue syringe of reuse 5ml connects the puncture of 18G draw point, usually can not once just be punctured to the target vein, repeated localised puncture certainly will increase damage, increase the incidence rate of complication.
Summary of the invention
The present invention seeks to provides a kind of to need puncture once just can insert central venous catheter, the few high improved central vein puncture needle of success rate of puncture complication smoothly in the success back for the deficiency that overcomes prior art.
For achieving the above object, the technical scheme that the present invention adopts is: a kind of central vein puncture needle comprises needle tubing, needle stand, side opening, indication point; One end of said needle tubing is arranged on the needle stand, and the end of the other end is a needle point; Said needle point is arranged to taper shape; The endoporus of said needle tubing is communicated with the endoporus of needle stand; Said side opening is arranged on the end away from the needle tubing of needle stand; Said indication point is arranged on the needle stand; The center of said indication point and side opening point-blank; The external diameter of said needle tubing is 0.7-1mm.
Preferably, said needle tubing is provided with scale.
Preferably, said needle tubing adopts medical stainless steel to process.
Preferably, the length of said needle tubing is 40-60 mm.
Preferably, the internal diameter of said side opening is 0.5-0.8 mm.
Preferably, said needle stand adopts transparent medical engineering plastics to process, and observes when being convenient to operate.
Preferably, said side opening is arranged on the junction of needle point and linearity needle tubing.
Because the utilization of technique scheme, the present invention compared with prior art has advantage:
When the present invention program's central vein puncture needle carries out the central vein puncture, to kermesinus blood and unobstructed, confirm the central vein puncture needle in pumpback when the target vein, just sign punctures successfully (once success), need not to puncture once more; Said needle stand is provided with and the consistent indication point of needle point side opening direction, and in inserting the process of seal wire, just fixedly the needle point side opening is in the proximal part direction, and the assurance seal wire is inserted the target vein to the proximal part direction; The needle tubing of the central vein puncture needle of this programme and the needle tubing of convergent divergent channel all are marked with scale, when using convergent divergent channel dilated penetration pathway, can accurately hold the degree of depth that convergent divergent channel is inserted, and make the expansion of puncture pathway thoroughly, and central venous catheter is inserted more smooth; Use central vein puncture needle of the present invention not only can simplify the puncture procedure step, shorten the puncture procedure time, make puncture procedure more convenient; The damage that can avoid simultaneously repeated localised puncture to increase to patient, the incidence rate of reduction complication has improved the success rate of central vein puncture.
Description of drawings
Below in conjunction with accompanying drawing technical scheme of the present invention is described further:
Accompanying drawing 1 is the front view of central vein puncture needle of the present invention;
Accompanying drawing 2 is the enlarged drawing of A portion in the accompanying drawing 1;
Wherein: 1, needle tubing; 2, needle stand; 3, side opening; 4, indication point.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is done further detailed description.
In piercing process, we also select convergent divergent channel for use; Its needle tubing adopts the medical engineering plastics to process, and needle tubing external diameter 6Fr, long 50mm, band scale, needle point are conical, needle point opening external diameter 0.9mm.Needle stand adopts transparent medical engineering plastics to process.
In piercing process, we also select the blue syringe of 5ml for use.The blue syringe that its production technology, material, profile and at present clinical central vein commonly used puncture in wrapping is the same, and blue pin hole internal diameter is 0.6mm.
In piercing process, we also select seal wire for use, and the seal wire that its production technology, material, profile and at present clinical central vein commonly used puncture in wrapping is the same, and external diameter is 0.55mm.
Puncture identical in wrapping of apparatuses such as required disposable 5ml syringe and entry needle, central venous catheter, dish folder, disposable surgical cutter, suture, medical pad pasting and at present clinical central vein commonly used of puncturing.
Use central vein puncture needle of the present invention and select for use external member to carry out the method for central vein puncture (being example with the puncture of way of escape right internal jugular vein equally): 1) patient's dorsal position, head deflection left side, site of puncture routine disinfection, hole, shop towel; 2) two horizontal finger places are point of puncture on selection sternocleidomastoid clavicle head trailing edge and the clavicle, local anesthesia; 3) after skin is pointed out in the broken sword-shaped needle puncture of 18G, connect the blue syringe of 5ml to the puncture of sternoclavicular joint direction with the central vein puncture needle, needle body keeps level, and syringe keeps negative pressure; 4) in piercing process, the needle stand stain of central vein puncture needle and puncture direction are consistent, the syringe pumpback is confirmed puncture needle when internal jugular vein to kermesinus blood and unobstructed, just indicates puncture successfully (once success); 5) insert seal wire 220mm through blue syringe to the internal jugular vein proximal part, withdraw from the central vein puncture needle,, make convergent divergent channel slowly insert same depth dilated penetration point skin to blood vessel through seal wire according to paracentesis depth---the puncture pathway; 6) fixing seal wire is inserted central venous catheter 120mm through seal wire; 7) A/C, medical dressing, pad pasting cover the site of puncture, and conduit connects the transfusion of transfusion leather strap.
When the present invention program's central vein puncture needle carries out the central vein puncture, to kermesinus blood and unobstructed, confirm the central vein puncture needle in pumpback when the target vein, just sign punctures successfully (once success), need not to puncture once more; Said needle stand is provided with and the consistent indication point of needle point side opening direction, and in inserting the process of seal wire, just fixedly the needle point side opening is in the proximal part direction, and the assurance seal wire is inserted the target vein to the proximal part direction; The needle tubing of the central vein puncture needle of this programme and the needle tubing of convergent divergent channel all are marked with scale, when using convergent divergent channel dilated penetration pathway, can accurately hold the degree of depth that convergent divergent channel is inserted, and make the expansion of puncture pathway thoroughly, and central venous catheter is inserted more smooth; Use central vein puncture needle of the present invention not only can simplify the puncture procedure step, shorten the puncture procedure time, make puncture procedure more convenient; The damage that can avoid simultaneously repeated localised puncture to increase to patient, the incidence rate of reduction complication has improved the success rate of central vein puncture.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (7)
1. a central vein puncture needle comprises needle tubing, needle stand, side opening, indication point; It is characterized in that: an end of said needle tubing is arranged on the needle stand, and the end of the other end is a needle point; Said needle point is arranged to taper shape; The endoporus of said needle tubing is communicated with the endoporus of needle stand; Said side opening is arranged on the end away from the needle tubing of needle stand; Said indication point is arranged on the needle stand; The center of said indication point and side opening point-blank; The external diameter of said needle tubing is 0.7-1mm.
2. central vein puncture needle according to claim 1 is characterized in that: said needle tubing is provided with scale.
3. central vein puncture needle according to claim 1 and 2 is characterized in that: the length of said needle tubing is 40-60 mm.
4. central vein puncture needle according to claim 1 and 2 is characterized in that: the internal diameter of said side opening is 0.5-0.8 mm.
5. central vein puncture needle according to claim 1 and 2 is characterized in that: said needle stand adopts transparent medical engineering plastics to process, and observes when being convenient to operate.
6. central vein puncture needle according to claim 1 and 2 is characterized in that: said side opening is arranged on the junction of needle point and linearity needle tubing.
7. central vein puncture needle according to claim 1 and 2 is characterized in that: said needle tubing adopts medical stainless steel to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102617153A CN102824206A (en) | 2012-07-26 | 2012-07-26 | Central vein puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102617153A CN102824206A (en) | 2012-07-26 | 2012-07-26 | Central vein puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102824206A true CN102824206A (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102617153A Pending CN102824206A (en) | 2012-07-26 | 2012-07-26 | Central vein puncture needle |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6544230B1 (en) * | 1998-03-31 | 2003-04-08 | Transvascular, Inc. | Catheters, systems and methods for percutaneous in situ arterio-venous bypass |
| CN2582639Y (en) * | 2002-08-13 | 2003-10-29 | 上海埃斯埃医械塑料制品有限公司 | Non destructive lumbra vertebra and peridural joint anesthetic sleeve needle |
| CN1498123A (en) * | 2001-03-23 | 2004-05-19 | ŵ��Ų�ڿ˹�˾ | Needle cannula, method of producing needle cannula and use of needle cannula |
| CN1607967A (en) * | 2001-12-26 | 2005-04-20 | 耶鲁大学 | Vascular access device |
| CN201042556Y (en) * | 2007-05-29 | 2008-04-02 | 袁福利 | Deep vein puncture device |
| CN202801754U (en) * | 2012-07-26 | 2013-03-20 | 苏州瑞华医院有限公司 | Central vein puncture needle |
-
2012
- 2012-07-26 CN CN2012102617153A patent/CN102824206A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6544230B1 (en) * | 1998-03-31 | 2003-04-08 | Transvascular, Inc. | Catheters, systems and methods for percutaneous in situ arterio-venous bypass |
| CN1498123A (en) * | 2001-03-23 | 2004-05-19 | ŵ��Ų�ڿ˹�˾ | Needle cannula, method of producing needle cannula and use of needle cannula |
| CN1607967A (en) * | 2001-12-26 | 2005-04-20 | 耶鲁大学 | Vascular access device |
| CN2582639Y (en) * | 2002-08-13 | 2003-10-29 | 上海埃斯埃医械塑料制品有限公司 | Non destructive lumbra vertebra and peridural joint anesthetic sleeve needle |
| CN201042556Y (en) * | 2007-05-29 | 2008-04-02 | 袁福利 | Deep vein puncture device |
| CN202801754U (en) * | 2012-07-26 | 2013-03-20 | 苏州瑞华医院有限公司 | Central vein puncture needle |
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Application publication date: 20121219 |