CN203724533U - Long catheter of vein indwelling needle - Google Patents
Long catheter of vein indwelling needle Download PDFInfo
- Publication number
- CN203724533U CN203724533U CN201320731162.3U CN201320731162U CN203724533U CN 203724533 U CN203724533 U CN 203724533U CN 201320731162 U CN201320731162 U CN 201320731162U CN 203724533 U CN203724533 U CN 203724533U
- Authority
- CN
- China
- Prior art keywords
- catheter
- needle
- long duct
- holder
- long
- 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
- 210000003462 vein Anatomy 0.000 title abstract description 4
- 238000001802 infusion Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 3
- 208000007536 Thrombosis Diseases 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000003978 infusion fluid Substances 0.000 abstract 3
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 7
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010339 dilation Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 206010049976 Impatience Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229940127558 rescue medication Drugs 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000001792 thromboblast Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses the long catheter of a vein indwelling needle, wherein the vein indwelling needle comprises a needle holder mechanism and an infusion solution joint assembly. The needle holder mechanism comprises a three-way catheter holder, a catheter, a needle holder and a needle tube arranged on the needle holder. The catheter is arranged at the front end of the three-way catheter holder. The needle tube is configured to pass through the interior of the three-way catheter holder to be inserted onto the catheter. The needle holder is configured to abut against the three-way catheter holder. The infusion solution joint assembly comprises a needleless infusion joint. The three-way catheter holder is connected with the needleless infusion joint through the long catheter. In particular, the long catheter is externally and fittingly provided with a flow-limiting clip for limiting the flow velocity of the infusion solution inside the long catheter. The long catheter is in the form of an expansible hose with at least one expansible liquid-storage section. According to the technical scheme of the utility model, the long catheter is provided with the expansible silicone hose having the liquid-storage function. In this way, the liquid through-flow state at a positive pressure between the long catheter and the catheter is enabled all the time. Therefore, the formation of thromboses is effectively prevented, and the risk of induced medical accidents is lowered.
Description
Technical field
This utility model relates to a kind of long duct, relates in particular to a kind of long duct of venous detaining needle, belongs to technical field of medical instruments.
Background technology
The use of venous detaining needle can reduce patient because of cause painful of venipuncture repeatedly and to the fear of having an injection, alleviate family members' impatience, be convenient to clinical application, suddenly, the rescue medication of critical patient, alleviate nurse's workload, reduce patient's pain, thereby venous detaining needle is in wide clinical application.
In Chinese patent CN202822325U, disclose a kind of venous detaining needle, comprised conduit tube component, needle tubing assembly and transfusion adapter assembly, conduit tube component comprises threeway catheter block and is connected to the conduit of the first open front of threeway catheter block.Needle tubing assembly comprises the needle stand outside the 3rd opening that is set in threeway catheter block and is connected to the needle tubing on needle stand, and needle tubing is inserted in the inside of conduit and threeway catheter block.The second opening of threeway catheter block connects transfusion adapter assembly, and transfusion adapter assembly comprises long duct, flow-stopping clip, infusion joint, calparine cap, end cap etc.; The second opening of threeway catheter block connects long duct, is furnished with flow-stopping clip on long duct, and the other end of long duct is connected to infusion joint; One side of infusion joint is provided with calparine cap, and opposite side is connected with an end cap; Note defeated device and can be inserted into the infusion that carries out normal saline in calparine cap.Venous detaining needle in use, need to make flow-stopping clip in open mode, by noting defeated device, coordinates calparine cap or end cap to infuse; After infusion-completed, by a side of end caps infusion joint, and opposite side pushes this and notes the normal saline in defeated device by being connected to the defeated device of note on calparine cap, in order to wash away the inner chamber of described venous detaining needle; After washing away, apply external force fluid stopping clamping is closed, the boss of flow-stopping clip clamps long duct and makes long duct in disconnection state.
Venous detaining needle of the prior art, at the note Cheng Houhui that is totally lost, pull away, because human vein possesses certain blood pressure, can be in negative pressure state in conduit, blood can be back to conduit, time one is long can and then promote thrombosis according to thromboblast precipitation, or also may upper while once infusing thrombosis can enter in sick body with medicinal liquid, cause unnecessary malpractice.
Utility model content
The purpose of this utility model is to solve above-mentioned technical problem, proposes a kind of long duct of venous detaining needle.
The purpose of this utility model, will be achieved by the following technical programs: a kind of long duct of venous detaining needle,
Described venous detaining needle comprises needle stand mechanism and transfusion adapter assembly,
Described needle stand mechanism comprises threeway catheter block, conduit, needle stand and is arranged at the needle tubing of needle stand, and described conduit is arranged at threeway catheter block front end, and described needle tubing is inner and be inserted in conduit through threeway catheter block, and described needle stand and threeway catheter block connect;
Described transfusion adapter assembly is needleless infusion joint;
Described threeway catheter block connects described needleless infusion joint by a long duct,
Especially, described long duct connects the current limliting folder that is useful on the described long duct inner liquid medicine flow velocity of restriction outward, and described long duct is the inflatable hose with at least one section of expansion liquid storage position.
Preferably, described inflatable hose has two sections of expansion liquid storage positions.
Preferably, described inflatable hose is silica gel tube.
The beneficial effects of the utility model are mainly reflected in: apply long duct of the present utility model, employing possesses the inflatable silica gel tube of liquid storage function, in pipe, liquid storage makes long duct and conduit all the time in the through-flow state of malleation, effectively prevent the formation of thrombosis, thereby reduced the risk that causes malpractice.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram that the long duct of a kind of venous detaining needle of utility model is applied to venous detaining needle.
Fig. 2 is the preferred structure schematic diagram of the long duct of a kind of venous detaining needle of utility model.
The specific embodiment
This utility model provides a kind of long duct of venous detaining needle, as shown in Figure 1, a kind of long duct of venous detaining needle, venous detaining needle comprises needle stand mechanism and transfusion adapter assembly, needle stand mechanism comprises threeway catheter block 2, conduit 1, needle stand 3 and is arranged at the needle tubing 31 of needle stand 3, conduit 1 is arranged at the front port 21 of threeway catheter block 2, and needle tubing 31 is through threeway catheter block 2 inside and be inserted in conduit 1, and needle stand 3 connects with the port 23 of threeway catheter block; Transfusion adapter assembly is needleless infusion joint 10, note defeated device 9 and can be inserted into the infusion that carries out normal saline in needleless infusion joint 10, needleless infusion joint 10 is an one-way valve structures, the side joint of needleless infusion joint is provided with end cap 8, needleless infusion joint 10 belongs to prior art, admittedly do not repeat them here; The port 22 of threeway catheter block 2 connects needleless infusion joint 10 by a long duct 4, especially, the outer current limliting folder 5 that is useful on restriction long duct 4 inner liquid medicine flow velocitys that connects of long duct 4, long duct 4 is for having the inflatable hose at least one section of expansion liquid storage position 41.
Wherein, as shown in Figure 2, inflatable hose has two sections of expansion liquid storage positions, has improved the liquid storage ability of long duct, can effectively extend the fluid time of medicinal liquid, has extended the guard time to venous detaining needle simultaneously.In addition, inflatable hose is silica gel tube.
Below use principle and the process of the long duct of this utility model venous detaining needle:
First current limliting folder 5 is placed in to open mode, by noting defeated device 9, coordinates needleless infusion joint 10 to infuse; After infusion-completed, use a side of end cap 8 sealing needleless infusion joints 10, and opposite side pushes this and notes the normal saline in defeated device 9 by noting defeated device 9, in order to wash away the inner chamber of venous detaining needle; After washing away, applying external force closes current limliting folder 5 to close, and then once use the defeated device 9 of note to pass through needleless infusion joint 10 to the interior propelling movement normal saline of long duct 4, and now, due to the metering function of current limliting folder 5 and the check valve effect of needleless infusion joint 10, make to enter into fast the normal saline compressing long duct 4 in long duct 4, and the dilation 41 of long duct 4 is expanded, and then liquid storage.Then, remove the defeated device 9 of note, the outer wall after dilation expands can produce pressure to the normal saline in it in the process of retraction, and then makes long duct 4 conduits 1 all the time in the through-flow state of malleation under the cooperation of current limliting folder 5.Like this, just can effectively prevent blood backflow, and well limit the generation of thrombosis.
This utility model still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming, within all dropping on protection domain of the present utility model.
Claims (3)
1. a long duct for venous detaining needle,
Described venous detaining needle comprises needle stand mechanism and transfusion adapter assembly,
Described needle stand mechanism comprises threeway catheter block, conduit, needle stand and is arranged at the needle tubing of needle stand, and described conduit is arranged at threeway catheter block front end, and described needle tubing is inner and be inserted in conduit through threeway catheter block, and described needle stand and threeway catheter block connect;
Described transfusion adapter assembly is needleless infusion joint;
Described threeway catheter block connects described needleless infusion joint by a long duct,
It is characterized in that: described long duct connects the current limliting folder that is useful on the described long duct inner liquid medicine flow velocity of restriction outward, and described long duct is the inflatable hose with at least one section of expansion liquid storage position.
2. the long duct of venous detaining needle according to claim 1, is characterized in that: described inflatable hose has two sections of expansion liquid storage positions.
3. the long duct of venous detaining needle according to claim 1, is characterized in that: described inflatable hose is silica gel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320731162.3U CN203724533U (en) | 2013-11-19 | 2013-11-19 | Long catheter of vein indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320731162.3U CN203724533U (en) | 2013-11-19 | 2013-11-19 | Long catheter of vein indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203724533U true CN203724533U (en) | 2014-07-23 |
Family
ID=51194640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320731162.3U Expired - Lifetime CN203724533U (en) | 2013-11-19 | 2013-11-19 | Long catheter of vein indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203724533U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826196A (en) * | 2015-05-29 | 2015-08-12 | 邓杜娟 | Self-sealing type venous indwelling needle with liquid bag in needle holder |
| CN105251079A (en) * | 2015-07-31 | 2016-01-20 | 河南曙光健士医疗器械集团股份有限公司 | Anti-thrombosis remaining needle device |
| CN106963458A (en) * | 2017-04-28 | 2017-07-21 | 边步荣 | A kind of positioning remaining needle and its anesthesia for continuous peripheral blockade |
| CN109646762A (en) * | 2019-01-15 | 2019-04-19 | 苏州林华医疗器械股份有限公司 | Fluting needle tubing and intravenous infusion indwelling needle |
-
2013
- 2013-11-19 CN CN201320731162.3U patent/CN203724533U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826196A (en) * | 2015-05-29 | 2015-08-12 | 邓杜娟 | Self-sealing type venous indwelling needle with liquid bag in needle holder |
| CN105251079A (en) * | 2015-07-31 | 2016-01-20 | 河南曙光健士医疗器械集团股份有限公司 | Anti-thrombosis remaining needle device |
| CN106963458A (en) * | 2017-04-28 | 2017-07-21 | 边步荣 | A kind of positioning remaining needle and its anesthesia for continuous peripheral blockade |
| CN109646762A (en) * | 2019-01-15 | 2019-04-19 | 苏州林华医疗器械股份有限公司 | Fluting needle tubing and intravenous infusion indwelling needle |
| CN109646762B (en) * | 2019-01-15 | 2024-04-05 | 苏州林华医疗器械股份有限公司 | Grooved needle tube and intravenous infusion remaining needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215101 No. 3, new road, Suzhou Industrial Park, Jiangsu, China Patentee after: SUZHOU LINHWA MEDICAL DEVICES CO.,LTD. Address before: 215101 No. 3, new road, Suzhou Industrial Park, Jiangsu, China Patentee before: SUZHOU LINHUA MEDICAL DEVICE CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |