CN106237442A - Venous detaining needle - Google Patents
Venous detaining needle Download PDFInfo
- Publication number
- CN106237442A CN106237442A CN201610807884.0A CN201610807884A CN106237442A CN 106237442 A CN106237442 A CN 106237442A CN 201610807884 A CN201610807884 A CN 201610807884A CN 106237442 A CN106237442 A CN 106237442A
- Authority
- CN
- China
- Prior art keywords
- needle
- venous detaining
- adapter sleeve
- flexible member
- conduit
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
- A61M5/16813—Flow controllers by controlling the degree of opening of the flow line
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
- A61M5/16881—Regulating valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
Abstract
The present invention provides a kind of venous detaining needle, and it includes adapter sleeve, conduit, flexible member, needle assembly, and needle assembly includes syringe needle and needle stand, syringe needle one end is fixed on needle stand, the other end extend in flexible member through adapter sleeve, and flexible member is connected to adapter sleeve, and catheter jacket is on adapter sleeve.The catheter interior of this venous detaining needle is equipped with flexible member, the bending and the violation operation needle point that effectively prevent conduit puncture the conduit rupture caused by pipe inner wall, it is to avoid cause the threat to patient vitals's safety in catheter blockage, Transfusion infiltration, fracture catheter retention blood vessel.
Description
Technical field
The present invention relates to a kind of venous detaining needle.
Background technology
The critical component of venous detaining needle is the conduit of its stainless pin periphery, plastics prepare, and generally uses FEP this
Material.FEP has that blood compatibility is good, chemical inertness, self lubricity and the advantage such as easily processed into type, and hardness is relatively simultaneously
Height, beneficially venipuncture.But, hardness height be i.e. the advantage of FEP conduit be again its shortcoming.
Current domestic venous detaining needle producer, many employing FEP prepare indwelling needle catheter.Owing to the higher this conduit of hardness is subject to
Reply after External Force Acting deformation is poor, it is easy to occur bending in turn result in catheter blockage, it is necessary to again to change conduit.And by
Not in strict accordance with venous detaining needle working specification when nurse operation sometimes, when the withdraw of the needle or during secondary puncture FEP conduit with
Draw point needle point generation puncture causes conduit rupture to remain in the blood vessel, and causes Transfusion infiltration, damages health, to patient
Life security constitutes a threat to.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the easy bending of conduit in prior art and the defect of fracture, it is provided that
A kind of venous detaining needle.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of venous detaining needle, its feature is, it includes adapter sleeve, conduit, flexible member, needle assembly, described pin
Assembly includes that syringe needle and needle stand, described syringe needle one end are fixed on described needle stand, and the other end extend into institute through described adapter sleeve
Stating in flexible member, described flexible member is connected to described adapter sleeve, and described catheter jacket is on described adapter sleeve.
In the technical program, add described flexible member in described catheter interior, buffered external force to described conduit
Mechanical damage, it is possible to protect described conduit, prevents bending and phenomenon of rupture.
It is preferred that described flexible member is spring.
It is preferred that described spring uses stainless steel silk to make.
It is preferred that the number of turns of described spring is 16-25 circle, corresponding described its length scope is 8-18mm.
It is preferred that the steel wire diameter of described spring is 0.5-0.8mm, the range in stiffness of described spring is 150-200N/mm.
In the technical program, the described conduit of different size, different described springs can be selected accordingly, i.e. select difference
The number of turns of described spring, length, steel wire diameter, thus ensure that spring can have described in the described conduit of different size
Effect uses.
It is preferred that described its length is whole described catheter length 1/3rd.
In the technical program, described its length is preferably 1/3rd of described catheter length, it is possible to effectively protect
The easy bending of described conduit and fracture key position, save material simultaneously.
It is preferred that described spring wrap is connected to described adapter sleeve lower end.
It is preferred that described spring is welded in described adapter sleeve lower end.
In the technical program, described spring can be intertwined and connected or be welded in described adapter sleeve lower end, easy to operate.
It is preferred that described venous detaining needle also includes connecting tube, adapter assembly, catheter block, described connecting tube one end and institute
Stating adapter assembly to connect, the other end is connected with described catheter block.
It is preferred that be provided with flow-stopping clip in described connecting tube.
In the technical program, arrange described flow-stopping clip for control transfusion flow, anti-Hemostatic Oral Liquid reflux.
On the basis of meeting common sense in the field, above-mentioned each optimum condition, can combination in any, obtain each preferable reality of the present invention
Example.
The most progressive effect of the present invention is:
The catheter interior of the venous detaining needle of the present invention, equipped with flexible member, effectively prevents bending and the violation operation of conduit
Needle point punctures the conduit rupture caused by pipe inner wall, it is to avoid cause in catheter blockage, Transfusion infiltration, fracture catheter retention blood vessel
Threat to patient vitals's safety.
Accompanying drawing explanation
Fig. 1 is the venous detaining needle structural representation of a preferred embodiment of the present invention.
Fig. 2 is the part-structure schematic diagram of the venous detaining needle withdraw of the needle state of a preferred embodiment of the present invention.
Fig. 3 is the part-structure schematic diagram of the vein indwelling needle catheter bending state of a preferred embodiment of the present invention.
Description of reference numerals:
1: adapter assembly
2: flow-stopping clip
3: connecting tube
4: needle stand
5: adapter sleeve
6: catheter block
7: flexible member
8: conduit
9: syringe needle
Detailed description of the invention
Name preferred embodiment, and combine accompanying drawing and become apparent from intactly illustrating the present invention.
As Figure 1-3, a kind of venous detaining needle, it includes adapter sleeve 5, conduit 8, flexible member 7, needle assembly,
Selecting rivet in the present embodiment is stainless steel as adapter sleeve 5, adapter sleeve 5, the most also can be selected for other
The parts with phase same-action are adapter sleeve 5, and selection spring is as flexible member 7 in the present embodiment, in other embodiments
Also can be selected for other parts with phase same-action as flexible member 7.Needle assembly includes that syringe needle 9 and needle stand 4, needle stand 4 are fixed
In catheter block 6 one end, syringe needle 9 one end is fixed on needle stand 4, and the other end extend in flexible member 7 through adapter sleeve 5, elastic
Element 7 is connected to adapter sleeve 5, and conduit 8 is coated on adapter sleeve 5.Arrange at conduit 8 internal 1/3rd in the present embodiment
Flexible member 7, because flexible member 7 has certain resilience, therefore conduit 8 can be had by flexible member 7 when bending conduit 8
The protection of effect, has buffered the external force mechanical damage to conduit 8, prevents its bending from resulting in blockage or secondary puncture causes conduit 8
There is phenomenon of rupture in damage.
In the present embodiment, the spring selected by flexible member 7 uses stainless steel silk to make, and spring surface can not have rust
Point, without scar free from flaw, smooth surface.The steel wire diameter of spring is 0.5-0.8mm, and number of turns scope is 16-25 circle, corresponding bullet
Spring length range is 8-18mm, and range in stiffness is 150-200N/mm.In use, can be according to selected by different remaining needles
The difference of conduit 8 specification, the spring that corresponding selection is different, i.e. select the number of turns of different springs, length, steel wire diameter, thus
Ensure that spring can effectively use when using the conduit 8 of different size.Its length is preferably whole conduit 8 length
1/3rd, it is possible to the effectively protection easy bending of conduit 8 and the key position that ruptures, it is to avoid its length long waste material and too short
Key position is not had the effect of being effectively protected.Spring can be intertwined and connected or be welded in adapter sleeve 5 lower end, can be according to different need
Ask and select different connected modes.
In the present embodiment, conduit 8 is FEP material, FEP have blood compatibility excellence, chemical inertness, self lubricity with
And the advantage such as easily processed into type, hardness is higher simultaneously, beneficially venipuncture.
Venous detaining needle also includes connecting tube 3, adapter assembly 1, catheter block 6 in the present embodiment, connecting tube 3 one end with connect
Head assembly 1 connects, and the other end is connected with catheter block 6.By adapter assembly 1, medicinal liquid is input in catheter block 6, and by leading
Pipe 8 carries out being input in the patient.Being provided with flow-stopping clip 2 in connecting tube 3, for controlling the flow of transfusion, anti-Hemostatic Oral Liquid refluxes.
When using venous detaining needle, conduit 8 is punctured together with syringe needle 9 in entrance patient vessel, when conduit 2/8ths three enters blood
Guan Hou, is extracted syringe needle 9 by needle stand 4, and conduit 8 indwelling in the blood vessel, thus is infused.
In the present embodiment as in figure 2 it is shown, when carrying out the withdraw of the needle or secondary puncture, syringe needle 9 can be at flexible member 7
Conduit 8 will not be punctured when slowly exiting or be again introduced under protection and cause fracture residual in the blood vessel, thus avoid causing defeated
Liquid seepage, fracture conduit 8 are detained in blood vessel the threat to patient vitals's safety.
In the present embodiment as it is shown on figure 3, operation time, conduit 8 occur bending time, due to flexible member 7 protection make
With, buffering the external force mechanical damage to conduit 8, conduit 8 bending part does not haves undue bending obstruction conduit 8, thus keeps away
Exempt to cause conduit 8 to block and health is damaged.
Although the foregoing describing the detailed description of the invention of the present invention, it will be appreciated by those of skill in the art that this is only
Being to illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art without departing substantially from
On the premise of the principle of the present invention and essence, these embodiments can be made various changes or modifications, but these changes and
Amendment each falls within protection scope of the present invention.
Claims (10)
1. a venous detaining needle, it is characterised in that it includes adapter sleeve, conduit, flexible member, needle assembly, described pin group
Part includes that syringe needle and needle stand, described syringe needle one end are fixed on described needle stand, and the other end extend into described through described adapter sleeve
In flexible member, described flexible member is connected to described adapter sleeve, and described catheter jacket is on described adapter sleeve.
2. venous detaining needle as claimed in claim 1, it is characterised in that described flexible member is spring.
3. venous detaining needle as claimed in claim 2, it is characterised in that described spring uses stainless steel silk to make.
4. venous detaining needle as claimed in claim 2, it is characterised in that the number of turns scope of described spring is 16-25 circle, relatively
Should described its length scope be 8-18mm.
5. venous detaining needle as claimed in claim 2, it is characterised in that the steel wire diameter of described spring is 0.5-0.8mm, institute
The range in stiffness stating spring is 150-200N/mm.
6. venous detaining needle as claimed in claim 2, it is characterised in that described its length is whole described catheter length
1/3rd.
7. venous detaining needle as claimed in claim 2, it is characterised in that described spring wrap is connected under described adapter sleeve
End.
8. venous detaining needle as claimed in claim 2, it is characterised in that described spring is welded in described adapter sleeve lower end.
9. venous detaining needle as claimed in claim 1, it is characterised in that described venous detaining needle also includes connecting tube, joint
Assembly, catheter block, described connecting tube one end is connected with described adapter assembly, and the other end is connected with described catheter block.
10. venous detaining needle as claimed in claim 9, it is characterised in that be provided with flow-stopping clip in described connecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610807884.0A CN106237442A (en) | 2016-09-07 | 2016-09-07 | Venous detaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610807884.0A CN106237442A (en) | 2016-09-07 | 2016-09-07 | Venous detaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106237442A true CN106237442A (en) | 2016-12-21 |
Family
ID=57599188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610807884.0A Pending CN106237442A (en) | 2016-09-07 | 2016-09-07 | Venous detaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106237442A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030032924A1 (en) * | 1997-01-08 | 2003-02-13 | Symbiosis Corporation | Endoscopic infusion needle having dual distal stops |
| CN102099067A (en) * | 2008-07-17 | 2011-06-15 | 史密斯医疗Asd公司 | Needle tip spring protector |
| CN201921281U (en) * | 2010-06-30 | 2011-08-10 | 深圳市益心达医学新技术有限公司 | Assorted guide wire for central venous catheter |
| US20120197200A1 (en) * | 2011-01-31 | 2012-08-02 | Vascular Pathways, Inc. | Intravenous catheter and insertion device with reduced blood spatter |
| CN204017108U (en) * | 2014-03-05 | 2014-12-17 | 中山市贝尔格介入医械有限公司 | A kind of Novel warp peripheral central venous catheter |
| CN204734799U (en) * | 2015-06-25 | 2015-11-04 | 上海上医康鸽医用器材有限责任公司 | Needleless infusion prevents that needle is kept somewhere to vein against current |
| CN206424376U (en) * | 2016-09-07 | 2017-08-22 | 上海上医康鸽医用器材有限责任公司 | Venous detaining needle |
-
2016
- 2016-09-07 CN CN201610807884.0A patent/CN106237442A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030032924A1 (en) * | 1997-01-08 | 2003-02-13 | Symbiosis Corporation | Endoscopic infusion needle having dual distal stops |
| CN102099067A (en) * | 2008-07-17 | 2011-06-15 | 史密斯医疗Asd公司 | Needle tip spring protector |
| CN201921281U (en) * | 2010-06-30 | 2011-08-10 | 深圳市益心达医学新技术有限公司 | Assorted guide wire for central venous catheter |
| US20120197200A1 (en) * | 2011-01-31 | 2012-08-02 | Vascular Pathways, Inc. | Intravenous catheter and insertion device with reduced blood spatter |
| CN204017108U (en) * | 2014-03-05 | 2014-12-17 | 中山市贝尔格介入医械有限公司 | A kind of Novel warp peripheral central venous catheter |
| CN204734799U (en) * | 2015-06-25 | 2015-11-04 | 上海上医康鸽医用器材有限责任公司 | Needleless infusion prevents that needle is kept somewhere to vein against current |
| CN206424376U (en) * | 2016-09-07 | 2017-08-22 | 上海上医康鸽医用器材有限责任公司 | Venous detaining needle |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161221 |