CN105056370A - Peripheral venous catheter and use method thereof - Google Patents
Peripheral venous catheter and use method thereof Download PDFInfo
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- CN105056370A CN105056370A CN201510547821.1A CN201510547821A CN105056370A CN 105056370 A CN105056370 A CN 105056370A CN 201510547821 A CN201510547821 A CN 201510547821A CN 105056370 A CN105056370 A CN 105056370A
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- dilator
- shackle member
- puncture needle
- peripheral venous
- venous catheter
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Abstract
The invention relates to a peripheral venous catheter and a use method thereof, and belongs to the technical field of medical apparatus and instruments. The peripheral venous catheter comprises an action portion and a locking portion which are connected with each other. The action portion sequentially comprises a puncture needle, an expander and a catheter body which are connected in a sleeved mode from inside to outside. The locking portion is arranged at the tail end of the expander and comprises a first locking device and second locking devices. The first locking device comprises a first locking part and a second locking part which are matched with each other, the second locking devices are arranged in pair, one end of each second locking device is provided with a first clamping part and a first limiting block, and the other end of each second locking device is provided with a second clamping part and a second limiting block. The peripheral venous catheter and the use method thereof have the advantages that the operation process is simplified, the success rate of catheter indwelling is increased, the work efficiency is effectively improved, injuries of an operator are prevented, puncture wound surfaces are reduced, and the structure is simple.
Description
Technical field
The invention belongs to technical field of medical instruments, relate in particular to a kind of peripheral venous catheter and using method thereof.
Background technology
Transfusion device is the irreplaceable medical apparatus and instruments of current clinical transfusion, and in recent years, the technical development of transfusion device achieves important breakthrough.Retained transfusion, as the important composition part of infusion treatment, presents day by day universal development trend.
At present, generally apply Sai Dingge technology, improvement Sai Dingge technology or tearable puncture needle technology clinically, complete the operation of corresponding peripheral venous catheter indwelling human vas.The peripheral venous catheter of Clinical practice, is normally made up of assemblies such as syringe, puncture needle, band sheath dilator or dilator, seal wire and peripheral venous catheter, and each assembly is usually in separate state.
When carrying out peripheral venous catheter indwelling operation, generally comprise following steps: 1, puncture needle is connected with syringe; 2, puncture needle thrusts human vas; 3, blood back is shown in syringe pumpback, confirms that puncture needle thrusts blood vessel; 4, syringe is removed; 5, seal wire enters human vas along puncture needle; 6, puncture needle is removed; 7, dilator imports along seal wire, carries out skin expansion; 8, dilator is removed; 9, peripheral venous catheter imports human vas along seal wire; 10, seal wire is removed; 11, lock peripheral venous catheter on skin, whole operating process need be got assembly one by one and be completed, inconvenient operation; Blood backflow is seen, to confirm whether puncture needle puts in place, and program is loaded down with trivial details by syringe pumpback; Especially, tearable puncture needle technology puncture needle used is excessively thick, easily patient is caused to the blood vessel injury of larger area, causes the myalgia of patient.
Summary of the invention
For all deficiencies of prior art, in order to solve the problem, now propose one simplify the operation course, improve put pipe success rate, effectively increase work efficiency, prevent operator injured, reduce puncture wound face, the simple peripheral venous catheter of structure and using method thereof.
For achieving the above object, the invention provides following technical scheme:
A kind of peripheral venous catheter, comprise the service portion and tight lock part that are connected, described service portion comprises puncture needle, dilator and the conduit that socket is arranged from the inside to surface successively, described tight lock part is arranged on dilator end, it comprises locking device one and locking device two, and described locking device one comprises the locking member one and locking member two that match, and described locking device two is arranged in pairs, its one end is provided with shackle member one and limited block one, and its other end is provided with shackle member two and limited block two.
Further, the end of described puncture needle is provided with Paracentesis needle holder, and the end of described dilator is provided with dilator seat, and the end of described conduit is provided with catheter block.
Further, described locking member one is set to female thread structure, and it is connected with dilator seat, and described locking member two is set to external thread structure, and it is connected with catheter block.
Further, described shackle member one is set to circulus, and described shackle member two is set to groove structure, and described locking device two is connected with dilator seat by shackle member one, and its other end runs through described Paracentesis needle holder.
Further, described limited block one and limited block two are arranged on the homonymy of locking device two, and described limited block one is set to wedge structure, and the height of described wedge structure increases to the direction of shackle member one successively from shackle member two.
Further, described Paracentesis needle holder is set to transparent configuration, and its inside is provided with the fluting mated with limited block one, limited block two.
Further, also comprise the seal wire being set to absolute construction, described seal wire end is provided with shackle member three, and described shackle member three is set to card convex structure, described Paracentesis needle holder is provided with the shackle member four of mating with shackle member three, described shackle member four is set to hole clipping structure.
Further, the length of described puncture needle, dilator and conduit reduces 1-2cm successively.
Further, the tip of described puncture needle is set to frosted structure, and described puncture needle and dilator joint are provided with blood back groove.
Separately, the present invention also provides a kind of using method of peripheral venous catheter, comprises the steps:
(1) promote described Paracentesis needle holder, impel described fluting along limited block one slip, until connect with dilator seat, described puncture needle is thrust patient vessel by operator;
(2) after operator sees blood back by described blood back groove, confirm that puncture needle puts in place, described seal wire is run through successively Paracentesis needle holder, dilator seat, catheter block, conduit, dilator and puncture needle, slowly import in patient body;
(3), after described shackle member three fastens with shackle member four clamping, described seal wire imports successfully, now, promotes described Paracentesis needle holder, impels described conduit to reach the catheterization depth of setting;
(4) withdraw described Paracentesis needle holder, make it move to shackle member two place along locking device two, position;
(5) turn described locking member one, locking member two, be separated by described catheter block with dilator seat, impel described catheter retaining in patient body, take off other assemblies, operating process completes.
The invention has the beneficial effects as follows:
1, service portion and tight lock part are combined as a whole by the present invention, do not need to get assembly one by one and complete, have simplifying the operation course, improve the feature of putting pipe success rate in operating process.
2, the present invention passes through the mating reaction of locking device one and locking device two, disposablely can complete the taking-up operation of puncture needle, dilator and seal wire, effectively increase work efficiency.
3, puncture needle, dilator and conduit connect together by the present invention successively from the inside to surface, withdraw in process at puncture needle, impel the tip of puncture needle to be positioned at dilator, effectively prevent operator from touching most advanced and sophisticated and injured.
4, puncture needle, dilator and conduit successively wrap are connected together by the present invention, socket tapering meets medical tapering standard, contribute to dilator, conduit synchronously enters in patient vessel along with puncture needle, have the advantages that to reduce puncture wound face, alleviate patient pain.
5, the present invention is provided with blood back groove at puncture needle and dilator joint, directly observes puncture needle to put in place situation by blood back groove blood back, does not need to observe blood back by syringe, has the advantages that structure is simple, save medical apparatus and instruments.
6, in the present invention, each assembly selects the conventional material of medical industry to make, and wherein, puncture needle and seal wire directly select Common Component in industry, have the advantages that material is easy to get, cost is low.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is cross-sectional view of the present invention;
Fig. 3 is the structural representation that Paracentesis needle holder of the present invention moves to shackle member two place;
Fig. 4 is tight lock part structural representation of the present invention;
Fig. 5 is locking device two structural representation of the present invention;
Fig. 6 is locking device two side faces structural representation of the present invention;
Fig. 7 is blood back groove structural representation of the present invention.
In accompanying drawing:
Puncture needle 1, dilator 2, conduit 3, catheter block 4, dilator seat 5, Paracentesis needle holder 6, locking device 1, locking member 1, locking member 29, locking device 2 10, seal wire 11, shackle member 3 12, shackle member 1, limited block 1, limited block 2 15, shackle member 2 16, shackle member 4 17, blood back groove 18, fluting 19.
Detailed description of the invention
Technical scheme of the present invention is understood better in order to make those skilled in the art; below in conjunction with accompanying drawing of the present invention; clear, complete description is carried out to technical scheme of the present invention; based on the embodiment in the application; other roughly the same embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all should belong to the scope of the application's protection.
Embodiment one:
As Fig. 1, shown in Fig. 7, a kind of peripheral venous catheter, comprise the service portion and tight lock part that are connected, described service portion comprises the puncture needle 1 that socket is arranged from the inside to surface successively, dilator 2 and conduit 3, the socket tapering of described three is all set to 1:16.67, described tapering meets medical tapering standard, and described puncture needle 1, the length of dilator 2 and conduit 3 reduces 1-2cm successively, contribute to dilator 2, conduit 3 synchronously enters in patient vessel along with puncture needle 1, reduce puncture wound face, alleviate patient pain, the length of described three as above mates setting, the length be exposed at outside described puncture needle 1 outside dilator 2 can be ensured, can effectively puncture, when can ensure that again described puncture needle 1 withdraws, it is inner that its tip can be placed in dilator 2 completely.
The end of described puncture needle 1 is provided with Paracentesis needle holder 6, described Paracentesis needle holder 6 surface is provided with handpiece, be convenient to mobile described Paracentesis needle holder 6, the end of described dilator 2 is provided with dilator seat 5, the end of described conduit 3 is provided with catheter block 4, described catheter block 4 surface is provided with fin, contribute to increasing the frictional force between operator's hand and catheter block 4, be convenient to dismounting, as preferably, the material of described dilator 2 is set to polypropylene, ABS, polyurethane, nylon, any one in polyethylene, the material of described conduit 3 is set to polyurethane, nylon, any one in politef thermoplastic, the material of described puncture needle 1 is set to medical stainless steel, described material is the conventional material of medical industry, be easy to draw materials, cost is low, described Paracentesis needle holder 6, the position that catheter block 4 connects with dilator seat 5 is all set to concave inward structure, contribute to the connection of three.
The tip of described puncture needle 1 is set to frosted structure, be easy to be formed hyperacoustic reflecting surface, when described puncture needle 1 is with different angles puncture patient vessel, all can obtain good ultrasonic reflections ripple, can effectively coordinate with ultrasonically guided puncture technique, the length of described frosted structure is set to 1-1.5cm, described puncture needle 1 is provided with blood back groove 18 with dilator 2 joint, described puncture needle 1 punctures after blood vessel, blood enters puncture needle 1, operator is after described blood back groove 18 observes blood back, confirm that described puncture needle 1 puts in place, do not need to observe blood back by syringe, save medical apparatus and instruments, structure is simple.
Embodiment two:
As Figure 1-4, described tight lock part is arranged on dilator 2 end, it comprises locking device 1 and locking device 2 10, as preferably, the material of described tight lock part is set to copolyesters, described locking device 1 comprises the locking member 1 and locking member 29 that match, described locking member 1 is set to female thread structure, it is connected with dilator seat 5, described locking member 29 is set to external thread structure, it is connected with catheter block 4, under the mating reaction of described locking member 1 and locking member 29, described dilator seat 5 is linked together with catheter block 4, fixation is played to described dilator 2 and conduit 3.
As shown in figures 1 to 6, described locking device 2 10 is arranged in pairs, its one end is provided with shackle member 1 and limited block 1, its other end is provided with shackle member 2 16 and limited block 2 15, described locking device 2 10 is connected with dilator seat 5 by shackle member 1, as preferably, described shackle member 1 is set to circulus, dilator seat 5 and locking device 2 10 is contributed to firmly to link together, described shackle member 2 16 is set to groove structure, contributes to carrying out clamping location to Paracentesis needle holder 6.
The other end of described locking device 2 10 runs through described Paracentesis needle holder 6, impel described Paracentesis needle holder 6 can slide along locking device 2 10, contribute to the puncture of puncture needle 1 and withdrawn operation, described limited block 1 and limited block 2 15 are arranged on the homonymy of locking device 2 10, described Paracentesis needle holder 6 inside is provided with the fluting 19 mated with limited block 1, limited block 2 15, contribute to described Paracentesis needle holder 6 to slide, described limited block 1, limited block 2 15, in the sliding process of Paracentesis needle holder 6, play guiding and positioning action.
As Fig. 1, Fig. 2, shown in Fig. 4, described limited block 1 is set to wedge structure, the height of described wedge structure increases to the direction of shackle member 1 successively from shackle member 2 16, buffering is played to the slip of described Paracentesis needle holder 6, guide effect, when described Paracentesis needle holder 6 moves along limited block 1 to the direction near dilator seat 5, described puncture needle 1 is driven to move, the length impelling described puncture needle 1 to expose dilator 2 increases gradually, when described Paracentesis needle holder 6 moves to and dilator seat 5 joint, namely described Paracentesis needle holder 6 arrives upper limit position, now, the length that described puncture needle 1 exposes is maximum, puncture procedure can be carried out.
Embodiment three:
As Figure 1-3, described seal wire 11 is set to absolute construction, its end is provided with shackle member 3 12, described seal wire 11 pairs of dilators 2, conduit 3 have guide function, the material of described seal wire 11 is set to medical stainless steel, described Paracentesis needle holder 6 is provided with the shackle member 4 17 of mating with shackle member 3 12, described shackle member 3 12 is set to card convex structure, and described shackle member 4 17 is set to hole clipping structure.
Described puncture needle 1 penetrates in patient vessel, after operator sees blood back, described seal wire 11 is imported in patient vessel through Paracentesis needle holder 6, dilator seat 5, catheter block 4, conduit 3, dilator 2 and puncture needle 1 successively, described shackle member 3 12 fastens with shackle member 4 17, fixation is played to described seal wire 11, show that described seal wire 11 imports successfully, described Paracentesis needle holder 6 is set to transparent configuration, be convenient to the importing state of checking seal wire 11, as preferably, the material of described Paracentesis needle holder 6 be set in Merlon, polypropylene any one.
After described conduit 3 imports patient vessel, only described Paracentesis needle holder 6 need be moved along the direction away from dilator seat 5, described puncture needle 1 and seal wire 11 are withdrawn, when described Paracentesis needle holder 6 moves to shackle member 2 16 place along limited block 2 15, described shackle member 2 16 pairs of Paracentesis needle holders 6 carry out clamping location, namely described Paracentesis needle holder 6 arrives lower position, now, the tip of described puncture needle 1 is placed in dilator 2 completely, avoid being touched, effectively prevent operator injured, turn described locking device 1, at described locking member 1, under the threaded engagement effect of locking member 29, described dilator seat 5 is impelled to be separated with catheter block 4, described conduit 3 is retained in patient body, disposable taking-up puncture needle 1, dilator 2 and seal wire 11, effectively increase work efficiency.
In described seal wire 11 importing process, its length exceeds the tip portion of puncture needle 1, and described blood back groove 18 is sheltered from by seal wire 11, withdraws in process at described puncture needle 1 and seal wire 11, and blood can not overflow through blood back groove 18, pollutes medical apparatus and instruments.
Embodiment four:
As shown in figs. 1-7, the using method of described a kind of peripheral venous catheter, comprises the following steps:
(1) described Paracentesis needle holder 6 is promoted, impel described fluting 19 to slide along limited block 1, until connect with dilator seat 5, described Paracentesis needle holder 6 is positioned, namely described Paracentesis needle holder 6 arrives upper limit position, and described puncture needle 1 is thrust patient vessel by operator;
(2) after operator sees blood back by described blood back groove 18, confirm that described puncture needle 1 has entered in patient vessel, described seal wire 11 is run through Paracentesis needle holder 6, dilator seat 5, catheter block 4, conduit 3, dilator 2 and puncture needle 1 successively, slowly imports in patient body;
(3), after described shackle member 3 12 fastens with shackle member 4 17 clamping, described seal wire 11 is positioned, shows that described seal wire 11 imports successfully, now, promote described Paracentesis needle holder 6, impel described conduit 3 to move forward along seal wire 11, reach the catheterization depth of setting;
(4) described Paracentesis needle holder 6 is withdrawn, it is made to move to shackle member 2 16 place along locking device 2 10, position, namely described Paracentesis needle holder 6 arrives lower position, described Paracentesis needle holder 6 withdraws in process, drive described puncture needle 1 and seal wire 11 to withdraw, impel the tip of described puncture needle 1 to be placed in dilator 2 completely;
(5) turn described locking member 1, locking member 29, be separated by described catheter block 4 with dilator seat 5, impel described conduit 3 to be retained in patient body, taken out by other assemblies, operating process completes.
In the importing process of described seal wire 11, if be hampered power, import again after answering rotation direction, as still having resistance to exist, should stop immediately, exiting puncture needle 1 and seal wire 11, reselect site of puncture, avoid described seal wire 11 through blood vessel sidewall, the soft tissue in injured patient's body.In addition, operator should avoid carrying out repeated localised puncture to same position, and to reduce the damage of patient tissue and blood vessel, in addition, the catheterization depth of described conduit 3, according to the practical situation of patient and should put pipe position, carries out taking the circumstances into consideration setting.
In whole operating process, operator does not need to get assembly one by one and completes, and simplify the operation course, effectively improve and put pipe success rate, described peripheral venous catheter is applicable to human body and animal body indwelling, and is applicable to any place's position, and the scope of application is wide.
Below the present invention be described in detail, the above, be only the preferred embodiment of the present invention, when not limiting the scope of the present invention, namely allly does impartial change according to the application's scope and modify, all should still belong in covering scope of the present invention.
Claims (10)
1. a peripheral venous catheter, it is characterized in that, comprise the service portion and tight lock part that are connected, described service portion comprises puncture needle, dilator and the conduit that socket is arranged from the inside to surface successively, described tight lock part is arranged on dilator end, it comprises locking device one and locking device two, described locking device one comprises the locking member one and locking member two that match, described locking device two is arranged in pairs, its one end is provided with shackle member one and limited block one, and its other end is provided with shackle member two and limited block two.
2. a kind of peripheral venous catheter according to claim 1, is characterized in that: the end of described puncture needle is provided with Paracentesis needle holder, the end of described dilator is provided with dilator seat, and the end of described conduit is provided with catheter block.
3. a kind of peripheral venous catheter according to claim 2, is characterized in that: described locking member one is set to female thread structure, and it is connected with dilator seat, and described locking member two is set to external thread structure, and it is connected with catheter block.
4. a kind of peripheral venous catheter according to claim 3, it is characterized in that: described shackle member one is set to circulus, described shackle member two is set to groove structure, and described locking device two is connected with dilator seat by shackle member one, and its other end runs through described Paracentesis needle holder.
5. a kind of peripheral venous catheter according to claim 4, it is characterized in that: described limited block one and limited block two are arranged on the homonymy of locking device two, described limited block one is set to wedge structure, and the height of described wedge structure increases to the direction of shackle member one successively from shackle member two.
6. a kind of peripheral venous catheter according to claim 5, is characterized in that: described Paracentesis needle holder is set to transparent configuration, its inside is provided with the fluting mated with limited block one, limited block two.
7. a kind of peripheral venous catheter according to claim 6, it is characterized in that: also comprise the seal wire being set to absolute construction, described seal wire end is provided with shackle member three, described shackle member three is set to card convex structure, described Paracentesis needle holder is provided with the shackle member four of mating with shackle member three, described shackle member four is set to hole clipping structure.
8. a kind of peripheral venous catheter according to claim 7, is characterized in that: the length of described puncture needle, dilator and conduit reduces 1-2cm successively.
9. a kind of peripheral venous catheter according to claim 8, is characterized in that: the tip of described puncture needle is set to frosted structure, and described puncture needle and dilator joint are provided with blood back groove.
10. adopt a using method for the peripheral venous catheter described in claim 1-9 any one, it is characterized in that, comprise the steps:
(1) promote described Paracentesis needle holder, impel described fluting along limited block one slip, until connect with dilator seat, described puncture needle is thrust patient vessel by operator;
(2) after operator sees blood back by described blood back groove, confirm that puncture needle puts in place, described seal wire is run through successively Paracentesis needle holder, dilator seat, catheter block, conduit, dilator and puncture needle, slowly import in patient body;
(3), after described shackle member three fastens with shackle member four clamping, described seal wire imports successfully, now, promotes described Paracentesis needle holder, impels described conduit to reach the catheterization depth of setting;
(4) withdraw described Paracentesis needle holder, make it move to shackle member two place along locking device two, position;
(5) turn described locking member one, locking member two, be separated by described catheter block with dilator seat, impel described catheter retaining in patient body, take off other assemblies, operating process completes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510547821.1A CN105056370B (en) | 2015-08-31 | 2015-08-31 | A kind of peripheral venous catheter and its application method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510547821.1A CN105056370B (en) | 2015-08-31 | 2015-08-31 | A kind of peripheral venous catheter and its application method |
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| CN105056370A true CN105056370A (en) | 2015-11-18 |
| CN105056370B CN105056370B (en) | 2018-11-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106563202A (en) * | 2016-10-17 | 2017-04-19 | 南京宁创医疗设备有限公司 | Peripherally inserted central venous catheter |
| CN115429968A (en) * | 2022-09-14 | 2022-12-06 | 南方医科大学珠江医院 | Implantable medical equipment with safety protection function |
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| CN106563202A (en) * | 2016-10-17 | 2017-04-19 | 南京宁创医疗设备有限公司 | Peripherally inserted central venous catheter |
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| CN115429968B (en) * | 2022-09-14 | 2023-05-09 | 南方医科大学珠江医院 | Implantable medical device with safety protection function |
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| CN105056370B (en) | 2018-11-16 |
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Effective date of registration: 20190320 Address after: 266000 Pangu Passenger Space D Block 308-1803, No. 100 Torch Road, Qingdao High-tech Zone, Shandong Province Patentee after: Qingdao Manli Oak Medical Technology Co., Ltd. Address before: 266101 No. 187 Zhuzhou Road, Laoshan District, Qingdao, Shandong. Patentee before: Qingdao Huaren Medical Product Co., Ltd. |
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