CN104922760A - Remaining needle with flow adjuster - Google Patents
Remaining needle with flow adjuster Download PDFInfo
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- CN104922760A CN104922760A CN201510352651.1A CN201510352651A CN104922760A CN 104922760 A CN104922760 A CN 104922760A CN 201510352651 A CN201510352651 A CN 201510352651A CN 104922760 A CN104922760 A CN 104922760A
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- pipe
- outer catheter
- interior pipe
- liquid
- remaining needle
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Abstract
A remaining needle with a flow adjuster comprises a remaining soft pipe, a remaining needle base, an extending pipe base, an extending soft pipe connected between the remaining needle base and the extending pipe base and a liquid stopping device arranged on the extending soft pipe. The extending soft pipe comprises an outer guiding pipe and an inner pipe. The lower ends of the outer guiding pipe and the inner pipe are connected with the remaining needle base and a liquid inlet respectively. At least one end of the inner pipe and the outer guiding pipe is connected with a liquid outlet of the extending pipe base. The liquid stopping device is arranged at the coinciding position of the outer guiding pipe and the inner pipe and can form continuous positive pressure on the inner pipe. The structure that the extending soft pipe with the outer guiding pipe and the inner pipe and the liquid stopping device with continuous positive pressure are combined is used, the extending soft pipe can be clamped reliably, liquid stopping is formed, the liquid stopping device is used for squeezing the outer guiding pipe, so that the inner pipe is subjected to large-area continuous squeezing, the inner pipe deforms, continuous positive pressure effect is achieved, blood backflow caused by springback siphoning of the extending soft pipe and blood flowing back into the remaining soft pipe caused by blood vessel inner venous pressure fluctuation can be avoided, and the purpose of thrombus preventing is achieved.
Description
Technical field
The present invention relates to a kind of remaining needle, belong to technical field of medical instruments.
Background technology
Existing remaining needle generally comprises indwelling flexible pipe, indwelling needle, prolongation base, is connected to indwelling needle and extends prolongation flexible pipe between base, is installed on the liquid stopping clamp extended on flexible pipe, and existing liquid stopping clamp generally comprises holder, the integrated device intermediate plate on holder, holder is placed through and extends on flexible pipe, can be clamped extend flexible pipe to be formed and stops liquid by coordinating of intermediate plate and holder.But because existing liquid stopping clamp is clamping in the process extending flexible pipe because the prolongation flexible pipe of clamping has a resilience after the intermediate plate of liquid stopping clamp unclamps, the prolongation flexible pipe of former clamping is made to form an elastic rebound and cause blood backflow to arrive in indwelling flexible pipe, cause blood backflow and form thrombosis, affecting the serviceability of remaining needle.Simultaneously because the tip of indwelling flexible pipe is open, change with patient respiration and heart beating the pressure oscillation brought also to there will be blood back and platelet and blood coagulation substance and enter into the phenomenon causing blood coagulation plugging in indwelling flexible pipe, particularly because liquid stopping clamp is installed in extension tube actively, in infusion-completed and the process after stopping liquid, liquid stopping clamp easily swings on indwelling needle, the liquid extended in flexible pipe is caused to produce siphonage and be drawn back into by vessel inner blood in indwelling flexible pipe, cause blood backflow and form thrombosis, have a strong impact on the service time of remaining needle, therefore existing remaining needle generally can only use just remaining needle must be pulled out because of the formation of thrombosis for 1-2 days, the remaining needle more renewed.
Summary of the invention
The object of the invention is to the existence for the problems referred to above and deficiency, provide a kind of structure simple, only liquid effect stability reliable, can effectively avoid thrombotic remaining needle.
Technical scheme of the present invention is achieved in that
A kind of remaining needle with flow regulator, it is characterized in that comprising indwelling flexible pipe, indwelling needle, extend base, the prolongation flexible pipe being connected to indwelling needle and extending between base, be installed on the only liquid device extended on flexible pipe, wherein said prolongation flexible pipe comprises outer catheter and interior pipe, wherein outer catheter is connected with the inlet of indwelling needle respectively with the lower end of interior pipe, outer catheter is connected with the liquid outlet extending base with at least one upper end of interior pipe, only liquid device is installed on the position that outer catheter overlaps with interior pipe, and should liquid device be only can to the only liquid device extending pipe formation continuous positive pressure on flexible pipe.
Above-mentioned only liquid device is flow regulator.
The wherein structure that is connected with the liquid outlet extending base of the upper end of outer catheter and interior pipe, both can be that above-mentioned interior pipe upper end is connected with the liquid outlet of prolongation base, outer catheter upper end open be sealingly fastened on interior pipe lateral wall.Also can be that above-mentioned outer catheter upper end is connected with the liquid outlet extending base, the upper end of interior pipe be positioned at outer catheter.Now above-mentioned interior pipe, in a section only between liquid device and indwelling needle, pipe is provided with micropore, this micropore is effectively stoping the liquid return in interior pipe to outer catheter inner chamber without automatic retracting during pressure differential, and this micropore can open at positive pressure and forms microchannel and make the medicinal liquid in outer catheter inner chamber slowly drop in interior pipe and press to stop blood backflow in retaining needle flexible tube to vein blood vessel after there is malleation medicinal liquid in outer catheter inner chamber, avoid thrombosis.Also can be that above-mentioned outer catheter upper end is all connected with the liquid outlet extending base with interior pipe upper end.
The structure that the present invention combines with the only liquid device with continuous positive pressure owing to adopting the prolongation flexible pipe with outer catheter and interior pipe, particularly the flow regulator as Flow-rate adjustment on transfusion device is applied on remaining needle and stops liquid device as malleation, when forming large-area extruding outer catheter and interior pipe in the process pushed away forward by the adjustable pulley on flow regulator, when pulley arrives certain position, pulley makes outer catheter and interior pipe be formed to press from both sides reliably and close, now pulley continues to push away forward, liquid in the spatia that outer catheter and interior pipe form or gas form lasting malleation, form the malleation chamber between wall, and the normal pressure of this malleation intracavity acts on the interior pipe in outer catheter all the time, continuous positive pressure is formed at interior pipe leading portion, this malleation is greater than human body angular vein pressure all the time, prevent blood backflow from forming thrombosis.When after tube sealing, what first patient encountered when activity is outer catheter, outer catheter drives interior pipe to be out of shape again, therefore the internal pipe of the outer catheter wrapped up plays a cushioning effect, effectively reduce because interior pipe is out of shape the fluctuation of pressure in the indwelling needle caused, when outer catheter be deformed to a certain degree cause in suctioned blood indwelling flexible pipe time, in now malleation cavity pressure extruding, the blood of resorption is return Ink vessel transfusing by pipe, prevent the thrombosis that blood backflow causes, reach the object of preventing thrombosis and the service time extending remaining needle to 7-10 days, reduce the increase of misery that patient brings because of repeated localised puncture and medical expense.And structure of the present invention is simple, makes easily practical.
Realization of the present invention is described in detail below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the status architecture schematic diagram that the only liquid device of first embodiment of the invention is opened.
Fig. 2 is the status architecture schematic diagram of the only liquid device clamping of first embodiment of the invention.
Fig. 3 is the status architecture schematic diagram that the only liquid device of second embodiment of the invention is opened.
Fig. 4 is the status architecture schematic diagram of the only liquid device clamping of second embodiment of the invention.
Fig. 5 is the status architecture schematic diagram that the only liquid device of third embodiment of the invention is opened.
Fig. 6 is the status architecture schematic diagram of the only liquid device clamping of third embodiment of the invention.
Fig. 7 is the partial enlargement structural representation of Fig. 3 of the present invention.
Fig. 8 is the partial enlargement structural representation of Fig. 4 of the present invention.
Detailed description of the invention
As shown in Figures 1 to 8, a kind of remaining needle with flow regulator of the present invention, it is characterized in that comprising indwelling flexible pipe 11, indwelling needle 1, extend base 5, the prolongation flexible pipe being connected to indwelling needle 1 and extending between base 5, be installed on the only liquid device extended on flexible pipe, wherein said prolongation flexible pipe comprises outer catheter 4 and interior pipe 3, wherein outer catheter 4 is connected with the inlet of indwelling needle 1 respectively with the lower end of interior pipe 3, outer catheter 4 is connected with the liquid outlet extending base 5 with at least one upper end of interior pipe 3, only liquid device is installed on the position that outer catheter 4 overlaps with interior pipe 3, and should liquid device be only can to the only liquid device extending pipe 3 on flexible pipe and formed continuous positive pressure.Above-mentioned only liquid device is flow regulator 2.The wherein structure that is connected with the liquid outlet extending base 5 of the upper end of outer catheter 4 and interior pipe 3, both can be as shown in Figure 1 to Figure 2, above-mentioned interior pipe 3 upper end be connected with the liquid outlet of prolongation base 5, and outer catheter 4 upper end open is sealingly fastened on interior pipe 3 lateral wall.Also can be as shown in Figure 3 to Figure 4, above-mentioned outer catheter 4 upper end be connected with the liquid outlet extending base 5, and the upper end of interior pipe 3 is positioned at outer catheter 4.Now as shown in Fig. 7 to Fig. 8, above-mentioned interior pipe 3, in a section only between liquid device and indwelling needle 1, pipe is provided with micropore 31, this micropore 31 is effectively stoping the liquid return in interior pipe 3 to outer catheter 4 inner chamber without automatic retracting during pressure differential, and this micropore 31 can open at positive pressure and forms microchannel and make the medicinal liquid in outer catheter 4 inner chamber slowly drop in interior pipe 3 and press to stop blood backflow in retaining needle flexible tube 11 to vein blood vessel after there is malleation medicinal liquid in outer catheter 4 inner chamber, avoid thrombosis.Also can be as shown in Figure 5 to Figure 6, above-mentioned outer catheter 4 upper end and interior pipe 3 upper end be all connected with the liquid outlet extending base 5.The structure that the present invention combines with the only liquid device with continuous positive pressure owing to adopting the prolongation flexible pipe with outer catheter 4 and interior pipe 3, particularly the flow regulator 2 as Flow-rate adjustment on transfusion device is applied on remaining needle and stops liquid device as malleation, when forming large-area extruding outer catheter 4 and interior pipe 3 in the process pushed away forward by the adjustable pulley on flow regulator 2, when pulley arrives certain position, pulley makes outer catheter 4 and interior pipe 3 be formed to press from both sides reliably and close, now pulley continues to push away forward, liquid in the spatia that outer catheter 4 and interior pipe 3 form or gas form lasting malleation, form the malleation chamber between wall, and the normal pressure of this malleation intracavity acts on the interior pipe 3 in outer catheter 4 all the time, continuous positive pressure is formed at interior pipe 3 leading portion, this malleation is greater than human body angular vein pressure all the time, prevent blood backflow from forming thrombosis.When after tube sealing, what first patient encountered when activity is outer catheter 4, in outer catheter 4 drives again, pipe 3 is out of shape, therefore the outer catheter 4 wrapped up plays a cushioning effect to interior pipe, effectively reduce because interior pipe 3 is out of shape the fluctuation of pressure in the indwelling needle 1 caused, when outer catheter 4 be deformed to a certain degree cause in suctioned blood indwelling flexible pipe 11 time, in now malleation cavity pressure extruding, the blood of resorption is return Ink vessel transfusing by pipe 3, prevent the thrombosis that blood backflow causes, reach the object of preventing thrombosis and the service time extending remaining needle to 7-10 days, reduce the increase of misery that patient brings because of repeated localised puncture and medical expense.And structure of the present invention is simple, makes easily practical.
Claims (6)
1. one kind has the remaining needle of flow regulator, it is characterized in that comprising indwelling flexible pipe (11), indwelling needle (1), extend base (5), the prolongation flexible pipe being connected to indwelling needle (1) and extending between base (5), be installed on the only liquid device extended on flexible pipe, wherein said prolongation flexible pipe comprises outer catheter (4) and interior pipe (3), wherein outer catheter (4) is connected with the inlet of indwelling needle (1) respectively with the lower end of interior pipe (3), outer catheter (4) is connected with the liquid outlet extending base (5) with at least one upper end of interior pipe (3), only liquid device is installed on the position that outer catheter (4) overlaps with interior pipe (3), and should liquid device be only can to the only liquid device extending pipe (3) formation continuous positive pressure on flexible pipe.
2. remaining needle according to claim 1, is characterized in that above-mentioned only liquid device is flow regulator (2).
3. remaining needle according to claim 1, it is characterized in that above-mentioned interior pipe (3) upper end is connected with the liquid outlet extending base (5), outer catheter (4) upper end open is sealingly fastened on interior pipe (3) lateral wall.
4. remaining needle according to claim 1, it is characterized in that above-mentioned outer catheter (4) upper end is connected with the liquid outlet extending base (5), the upper end of interior pipe (3) is positioned at outer catheter (4).
5. remaining needle according to claim 4, it is characterized in that a section of above-mentioned interior pipe (3) being positioned at only between liquid device and indwelling needle (1) is managed (3) and is provided with micropore (31), this micropore (31) is effectively stoping the liquid return in interior pipe (3) to outer catheter (4) inner chamber without automatic retracting during pressure differential, and this micropore (31) can open at positive pressure and forms microchannel and make the medicinal liquid in outer catheter (4) inner chamber slowly drop in interior pipe (3) and press to stop blood backflow in retaining needle flexible tube (11) to vein blood vessel after there is malleation medicinal liquid in outer catheter (4) inner chamber, avoid thrombosis.
6. remaining needle according to claim 1, is characterized in that above-mentioned outer catheter (4) upper end and interior pipe (3) upper end are all connected with the liquid outlet extending base (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510352651.1A CN104922760B (en) | 2015-06-24 | 2015-06-24 | A kind of remaining needle with flow regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510352651.1A CN104922760B (en) | 2015-06-24 | 2015-06-24 | A kind of remaining needle with flow regulator |
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| Publication Number | Publication Date |
|---|---|
| CN104922760A true CN104922760A (en) | 2015-09-23 |
| CN104922760B CN104922760B (en) | 2018-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510352651.1A Active CN104922760B (en) | 2015-06-24 | 2015-06-24 | A kind of remaining needle with flow regulator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086832A1 (en) * | 2014-12-01 | 2016-06-09 | 邹卫平 | Indwelling needle having sustained release positive pressure |
| CN105854125A (en) * | 2016-04-05 | 2016-08-17 | 欧阳小青 | Positive-pressure liquid stopping clamp |
| CN107998484A (en) * | 2017-12-28 | 2018-05-08 | 谢世庚 | Washing pipe formula liquid stopping clamp |
| CN108079402A (en) * | 2017-12-28 | 2018-05-29 | 谢世庚 | Combined pressurization liquid stopping clamp |
| CN108371751A (en) * | 2018-02-27 | 2018-08-07 | 谢世庚 | Wheel folder Combined impact pipe clamp |
| CN108553706A (en) * | 2018-02-27 | 2018-09-21 | 谢世庚 | The washing pipe liquid stopping clamp of remaining needle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007330688A (en) * | 2006-06-19 | 2007-12-27 | Unitika Ltd | Internal indwelling catheter |
| CN102188761A (en) * | 2011-03-14 | 2011-09-21 | 张亚根 | Positive-pressure pinch valve |
| CN104399145A (en) * | 2014-12-18 | 2015-03-11 | 邓杜娟 | Double-cavity-catheter self-sealing venous indwelling needle |
| CN104436363A (en) * | 2014-12-01 | 2015-03-25 | 邹卫平 | Indwelling needle controlled-release positive pressure device |
| CN104645448A (en) * | 2015-02-02 | 2015-05-27 | 湛江健力源医疗用品有限公司 | Anti-reflux remaining needle |
| CN204766841U (en) * | 2015-06-24 | 2015-11-18 | 湛江健力源医疗用品有限公司 | Keep somewhere needle with flow regulator |
-
2015
- 2015-06-24 CN CN201510352651.1A patent/CN104922760B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007330688A (en) * | 2006-06-19 | 2007-12-27 | Unitika Ltd | Internal indwelling catheter |
| CN102188761A (en) * | 2011-03-14 | 2011-09-21 | 张亚根 | Positive-pressure pinch valve |
| CN104436363A (en) * | 2014-12-01 | 2015-03-25 | 邹卫平 | Indwelling needle controlled-release positive pressure device |
| CN104399145A (en) * | 2014-12-18 | 2015-03-11 | 邓杜娟 | Double-cavity-catheter self-sealing venous indwelling needle |
| CN104645448A (en) * | 2015-02-02 | 2015-05-27 | 湛江健力源医疗用品有限公司 | Anti-reflux remaining needle |
| CN204766841U (en) * | 2015-06-24 | 2015-11-18 | 湛江健力源医疗用品有限公司 | Keep somewhere needle with flow regulator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086832A1 (en) * | 2014-12-01 | 2016-06-09 | 邹卫平 | Indwelling needle having sustained release positive pressure |
| CN105854125A (en) * | 2016-04-05 | 2016-08-17 | 欧阳小青 | Positive-pressure liquid stopping clamp |
| CN107998484A (en) * | 2017-12-28 | 2018-05-08 | 谢世庚 | Washing pipe formula liquid stopping clamp |
| CN108079402A (en) * | 2017-12-28 | 2018-05-29 | 谢世庚 | Combined pressurization liquid stopping clamp |
| CN108371751A (en) * | 2018-02-27 | 2018-08-07 | 谢世庚 | Wheel folder Combined impact pipe clamp |
| CN108553706A (en) * | 2018-02-27 | 2018-09-21 | 谢世庚 | The washing pipe liquid stopping clamp of remaining needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104922760B (en) | 2018-03-20 |
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Address after: No. 679 Guangyuan Road, Longtou Town, Potou District, Zhanjiang City, Guangdong Province, 524001 Patentee after: Zhanjiang Jianliyuan Medical Supplies Co.,Ltd. Address before: 524043 No. 26, Renmin Avenue Middle, Zhanjiang City, Guangdong Province Patentee before: ZHANJIANG JIANLIYUAN MEDICAL PRODUCTS Co.,Ltd. |