CN103933637B - From exhaust gas filter type remaining needle - Google Patents
From exhaust gas filter type remaining needle Download PDFInfo
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- CN103933637B CN103933637B CN201410156232.6A CN201410156232A CN103933637B CN 103933637 B CN103933637 B CN 103933637B CN 201410156232 A CN201410156232 A CN 201410156232A CN 103933637 B CN103933637 B CN 103933637B
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- remaining needle
- needle
- air bleeding
- bleeding valve
- remaining
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- 230000000740 bleeding effect Effects 0.000 claims abstract description 94
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000011148 porous material Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 2
- 239000008280 blood Substances 0.000 abstract description 14
- 210000004369 blood Anatomy 0.000 abstract description 14
- 206010011409 Cross infection Diseases 0.000 abstract description 5
- 208000005189 Embolism Diseases 0.000 abstract description 5
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 5
- 208000001435 Thromboembolism Diseases 0.000 abstract description 5
- 230000004308 accommodation Effects 0.000 abstract description 4
- 210000003462 vein Anatomy 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 9
- 239000012528 membrane Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000013618 particulate matter Substances 0.000 description 4
- 238000011109 contamination Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000000474 nursing effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000001194 anti-hemostatic effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002439 hemostatic effect Effects 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention relates to a kind of remaining needle, especially a kind of from exhaust gas filter type remaining needle, belong to the technical field of medical apparatus and instruments.According to technical scheme provided by the invention, described from exhaust gas filter type remaining needle, the transfusion catheter comprising remaining needle and be connected with described remaining needle, is provided with in described transfusion catheter for the drainage screen of filtration of particulate matters and the belt switch air bleeding valve for discharging liquid-transport pipe-line gas.The liquid that the present invention can be entered in remaining needle by drainage screen effectively filters, guarantee the degree of purity being carried out transfusion liquid by remaining needle, opening or closing by air bleeding valve, can effectively stop gas to enter vein blood vessel and avoid polluting, can prevent blood backflow from entering in remaining needle by arranging remaining needle switch in remaining needle, avoid the thromboembolism of blood in remaining needle, that puncture needle can be avoided to cause by puncture needle preventer stabs and cross infection by mistake, simple and compact for structure, easy to use, extend the service time of remaining needle, wide accommodation, safe and reliable.
Description
Technical field
The present invention relates to a kind of remaining needle, especially a kind of from exhaust gas filter type remaining needle, belong to the technical field of medical apparatus and instruments.
Background technology
Venous detaining needle is the conventional medical apparatus and instruments in nursery work, have easy to use, reduce the effect to patient's puncture time, thus repeated localised puncture when decreasing clinical transfusion, reduce the workload of the painful and clinical nursing staff of the puncture of patient, thus current clinical in obtain extensive use.
In existing venous detaining needle, generally comprise: puncture needle, remaining needle and transfusion catheter.During use, first, puncture needle UNICOM remaining needle is inserted the injection position of patient by user, then, by puncture needle guiding, remaining needle is imported patient vessel, finally, is extracted out by puncture needle, remaining needle is stayed in patient vessel, and fixes with pad pasting of applying ointment or plaster.During use, a tube for transfusion is arranged in remaining needle and carries out drop.
The common disadvantage of existing remaining needle is: 1), when the liquid-transport pipe-line by being connected to remaining needle or threeway stopcock remaining needle infused or injection time, vein blood vessel may be entered with gas; 2), remaining needle is retained in patient vessel, though carried out washing pipe nursing, often still has remaining needle to be occurred by Blood occlusion, especially the patient of high blood coagulation state; 3), when retained needle puncture has operated, when extracting puncture needle, may operator have been stabbed, when staff processes this garbage, also may be wounded by stabbing, and may cross infection be caused; 4), remaining needle is when fixing, and special pad pasting of taking specially is inconvenient; Meanwhile, the fixed form posted outward, when tube for transfusion is by external force, in transfusion catheter position, very easily avulsion during pad pasting forced section firmly gathers, and then causes remaining needle to be deviate from.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, there is provided a kind of from exhaust gas filter type remaining needle, it is simple and compact for structure, easy to use, can effectively to the filtration of particulate matter, effectively can prevent gaseous contamination, effectively prevent the thromboembolism of remaining needle, extend the service life of remaining needle, can stabbing operator be avoided, wide accommodation, safe and reliable.
According to technical scheme provided by the invention, described from exhaust gas filter type remaining needle, the transfusion catheter comprising remaining needle and be connected with described remaining needle, described transfusion catheter is provided with and can carries out the air bleeding valve of on off state adjustment and the drainage screen for filtration of particulate matters.
Described drainage screen is positioned at air bleeding valve, or drainage screen is positioned at transfusion catheter and is connected in series with air bleeding valve.
Described air bleeding valve comprises air bleeding valve base and mates with described air bleeding valve base the aerofluxus adjustable cap being connected and also can regulating described exhaust valve open off status, is provided with the film that blocks water in air bleeding valve base.
Described air bleeding valve base is provided with base venthole, and described aerofluxus adjustable cap is provided with adjustable cap pore, and aerofluxus adjustable cap can rotate on air bleeding valve base, and when aerofluxus adjustable cap rotates on air bleeding valve base, base venthole can be connected with adjustable cap pore.
Be provided with puncture needle in described remaining needle, described puncture needle is installed on remaining needle by puncture needle preventer.
Described puncture needle preventer comprises the puncture needle mated with the indwelling needle of remaining needle end and protects joint; puncture needle protection joint is connected with mantle seat by flexible mantle; the afterbody of puncture needle is fixed in mantle seat, and the head of puncture needle can stretch in remaining needle through puncture needle protection joint.
Described puncture needle protection joint comprises joint shell, is provided with joint stem stem, the second limiting plate that described joint stem stem is provided with the first limiting plate and mates with described first limiting plate in described joint shell; The head of puncture needle is retracted into after in puncture needle protection joint, the head of puncture needle can be stoped again to expose by the first limiting plate and the second limiting plate.
The remaining needle switch for controlling tube chamber on off state in remaining needle is provided with in described remaining needle.
Described remaining needle switch comprises the adjusting rod can inserted in remaining needle, and the end, one end of described adjusting rod is provided with the adjusting plug mated with remaining needle, and the other end of adjusting rod is provided with regulating handle, and described regulating handle mates with the indwelling needle of remaining needle end; The sidewall of remaining needle sets out fluid apertures, described liquid outlet is connected with the cavity in remaining needle, adjusting plug follows adjusting rod when moving in remaining needle, can close or liquid outlet on open remaining needle sidewall, to block or to open the circulation passage of remaining needle tube chamber and liquid outlet.
Described remaining needle switch comprises the second pouch being positioned at remaining needle, described second pouch and second for carrying out topping up or inflation to described second pouch are led and fill pipe and be connected, second leads and fills pipe and be provided with leading of mating with the indwelling needle of remaining needle end and fill base, second leads and fills pipe and fill base be installed in remaining needle by leading, by second lead fill pipe make the second bladder expansion or sunken time, block or the tube chamber of open remaining needle.
Advantage of the present invention: the liquid that can be entered in remaining needle by drainage screen is effectively filtered, guarantee the degree of purity being carried out transfusion liquid by remaining needle, simultaneously, opening or closing by air bleeding valve, can effectively stop gas to enter vein blood vessel and avoid polluting, can prevent blood backflow from entering in remaining needle by arranging remaining needle switch in remaining needle, avoid the thromboembolism of blood in remaining needle, that puncture needle can be avoided to cause by puncture needle preventer stabs and cross infection by mistake, simple and compact for structure, easy to use, extend the service time of remaining needle, wide accommodation, safe and reliable.
Accompanying drawing explanation
Fig. 1 transfusion catheter of the present invention is arranged the structural representation that drainage screen connects with air bleeding valve.
Fig. 2 is the structural representation that drainage screen of the present invention is positioned at air bleeding valve.
Fig. 3 is the partial enlarged drawing that drainage screen of the present invention is arranged in air bleeding valve.
Fig. 4 is structural representation remaining needle of the present invention being arranged puncture needle preventer.
Fig. 5 is the structural representation of puncture needle preventer of the present invention.
Fig. 6 is the structural representation of puncture needle of the present invention protection joint.
Fig. 7 is the structural representation of air bleeding valve of the present invention.
Fig. 8 is the structural representation of aerofluxus adjustable cap of the present invention.
Fig. 9 is a kind of structural representation of air bleeding valve base of the present invention.
Figure 10 is the another kind of structural representation of air bleeding valve base of the present invention.
Figure 11 is structural representation air bleeding valve base of the present invention being arranged runner.
Figure 12 is the structural representation that the present invention fixes pad pasting.
Figure 13 is that the one of remaining needle switch of the present invention implements structural representation.
Figure 14 is the using state figure that in Figure 13, remaining needle switch cuts out remaining needle.
Figure 15 is the structural representation of remaining needle switch in Figure 13.
Figure 16 is that the another kind of remaining needle switch of the present invention implements structural representation.
Figure 17 is the using state figure that in Figure 16, remaining needle switch cuts out remaining needle.
Figure 18 is the third enforcement structural representation of remaining needle switch of the present invention.
Figure 19 is the using state figure that in Figure 18, remaining needle switch cuts out remaining needle.
Description of reference numerals: 1-liquid outlet, 2-adjusting rod, 3-indwelling needle, 4-regulating handle, 5-air bleeding valve, 6-first transfusion catheter, 7-first transfusion catheter joint, 8-second transfusion catheter joint, 9-second transfusion catheter, 10-fixes pad pasting, 11-remaining needle, 12-adjusting plug, 13-step, 14-first pouch, 15-first leads and fills pipe, 16-sealing-plug, 17-second pouch, 18-second leads and fills pipe, 19-second leads and fills base, 20-second leads and fills pipe and fill mouth, 21-puncture needle, 22-puncture needle protection joint, 23-mantle seat, 24-mantle, 25-joint shell, 26-joint stem stem, 27-first limiting plate, 28-second limiting plate, 29-blocks water film, 30-air bleeding valve base, 31-aerofluxus adjustable cap, 32-first venthole, 33-barrier plate, 34-second venthole, 35-runner, 36-base is given vent to anger side opening and 37-conduit installing hole and 38-drainage screen.
Detailed description of the invention
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in Figure 1, Figure 2 and Figure 3: when utilizing remaining needle to infuse, in order to effectively can filter the particulate matter in liquid, the transfusion catheter that the present invention includes remaining needle 11 and be connected with described remaining needle 11, is provided with the drainage screen 38 for filtration of particulate matters in described transfusion catheter; Meanwhile, the gas in use caused in order to avoid venous detaining needle enters venous line, and described transfusion catheter is provided with the air bleeding valve 5 that can carry out on off state adjustment; Described drainage screen 38 is positioned at air bleeding valve 5 or transfusion catheter.
Particularly, during transfusion state, the air entered in transfusion catheter can be discharged by described air bleeding valve 5; Not during transfusion state, enter in transfusion catheter to prevent air and pollute, air bleeding valve 5 can be closed.By the particulate matter in the liquid of the drainage screen 38 energy filtering remaining needle 11 to be entered in transfusion catheter, guarantee the degree of purity being carried out transfusion liquid by remaining needle 11.Drainage screen 38 can be positioned at transfusion catheter, and is positioned at the front end of air bleeding valve 5, and in addition, drainage screen 38 also can be positioned at air bleeding valve 5.
When drainage screen 38 is positioned at transfusion catheter, the caliber of the shape of drainage screen 38 and structure and transfusion catheter matches.When drainage screen 38 is positioned at air bleeding valve 5, drainage screen 38 and air bleeding valve 5 match, after namely first being filtered by drainage screen 38, the on off state not affecting air bleeding valve 5 regulates, in the specific implementation, the drainage screen 38 being positioned at air bleeding valve 5 can in carving type or other shapes, to be embedded in air bleeding valve 5.The arrangement form of drainage screen 38 in transfusion catheter can be selected as required, and the particulate matter that the size of drainage screen 38 filtration of particulate matters can be filtered as required requires to select, and specifically repeats no more.
As shown in figs. 4 and 7, air bleeding valve 5 can be made to carry out controlled opening/closing, described air bleeding valve 5 comprises air bleeding valve base 30 and mates with described air bleeding valve base 30 the aerofluxus adjustable cap 31 being connected and also can regulating described air bleeding valve 5 opening degree, is provided with the film 29 that blocks water in air bleeding valve base 30.The described film 29 that blocks water can only allow the air in medicinal liquid to pass through, and by the air after the film 29 that blocks water, is overflowed, realize the effect of aerofluxus by air bleeding valve base 30 and aerofluxus adjustable cap 31.When being turned off the passage that extraneous air enters in air bleeding valve 5 by aerofluxus adjustable cap 31 and air bleeding valve base 30, can external contamination be avoided, guarantee the use safety of whole venous detaining needle.
In order to conveniently realize opening or closing of air bleeding valve 5, described air bleeding valve base 30 is provided with base venthole, described aerofluxus adjustable cap 31 is provided with adjustable cap pore, aerofluxus adjustable cap 31 can rotate on air bleeding valve base 30, and aerofluxus adjustable cap 31 when rotating on air bleeding valve base 30, base venthole can be connected with adjustable cap pore.In the specific implementation, there is between base venthole and adjustable cap pore multiple enforcement relation, when being communicated with when between base venthole with adjustable cap pore, then make air bleeding valve 5 be in open mode; Be in when stopping (not being communicated with) state when between base venthole with adjustable cap pore, then make air bleeding valve 5 be in closed condition.
Further, as shown in Figure 8 and Figure 9, described aerofluxus adjustable cap 31 is provided with some first ventholes 32, barrier plate 33 is provided with in air bleeding valve base 30, described barrier plate 33 is provided with some second ventholes 34 that can be connected with the first venthole 32, aerofluxus adjustable cap 31 can rotate on air bleeding valve base 30, and when aerofluxus adjustable cap 31 rotates on air bleeding valve base 30, by the on off state of the position adjustments air bleeding valve 5 between the first venthole 32 and the second venthole 34.Particularly, described barrier plate 33 can be positioned at the top of the film 29 that blocks water, first venthole 32 and the second venthole 32 can be staggered, when aerofluxus adjustable cap 31 rotates on air bleeding valve base 30, can be between the first venthole 32 with the second venthole 32 and overlap completely, the state staggering completely or partially overlap, when be in overlap completely or partially overlap time, the gas entering air bleeding valve 5 is overflowed by air bleeding valve 5, when be in all stagger time, can prevent extraneous gas from entering in air bleeding valve 5, thus the opening degree of whole air bleeding valve 5 is regulated by above-mentioned diverse location, can conveniently realize aerofluxus or close the operation of whole air bleeding valve 5.
As shown in Figure 10 and Figure 11, described air bleeding valve 5 comprises air bleeding valve base 30 and mates with described air bleeding valve base 30 the air bleeding valve adjustable cap 31 being connected and also can regulating described air bleeding valve 5 opening degree, the film 29 that blocks water is provided with in air bleeding valve base 30, some runners 35 are provided with in air bleeding valve base 30, the sidewall of air bleeding valve base 30 is provided with some bases and gives vent to anger side opening 36, and air bleeding valve adjustable cap 31 is provided with some giving vent to anger the adjustable cap side opening that side opening 36 is connected with base; Aerofluxus adjustable cap 31 can rotate on air bleeding valve base 30, and when aerofluxus adjustable cap 31 rotates on air bleeding valve base 30, the on off state of the position adjustments air bleeding valve 5 between side opening 36 of being given vent to anger by adjustable cap side opening and base.
Particularly, carry out water conservancy diversion by runner 35 pairs of medicinal liquids, gas can be made effectively to overflow by the air in medicinal liquid after water conservancy diversion.Described runner 35 can be formed by multiple dividing plate, and described runner 35 is consistent with the circulating direction of medicinal liquid.Blocking water film 39 can in the top of runner 35 or top position.Base side opening 36 of giving vent to anger is distributed on the sidewall of air bleeding valve base 30, and described base side opening 36 of giving vent to anger is positioned at the top of the film 29 that blocks water, and base gives vent to anger side opening 36 on air bleeding valve base 30 for being uniformly distributed or non-uniform Distribution.Air bleeding valve adjustable cap 31 is in lid-like, the sidewall of air bleeding valve adjustable cap 31 is also provided with the adjustable cap side opening of some correspondence distributions, when described aerofluxus adjustable cap 31 is arranged on air bleeding valve base 30, adjustable cap side opening and the base on air bleeding valve base 30 are given vent to anger between side opening 36 can be in whole state overlapping, all stagger or partially overlap, when be in all overlap or partially overlap time, enter air in air bleeding valve 5 to be overflowed by adjustable cap side opening and base side opening 36 of giving vent to anger, the normal use of air bleeding valve 5 can be ensured.When be in all stagger time, outside gas can be stoped to enter in air bleeding valve 5, thus realize regulating the on off state of air bleeding valve 5.
Further, described transfusion catheter can be structure as a whole, and also can be detachable structure.When transfusion catheter adopts separable structure, described transfusion catheter comprises the first transfusion catheter 6 and the second transfusion catheter 9, one end of second transfusion catheter 9 is connected with remaining needle 11, the other end of the second transfusion catheter 9 is provided with the second transfusion catheter joint 8, the end, one end of the first transfusion catheter 6 is provided with the first transfusion catheter joint 7 mated with the second transfusion catheter joint 8, first transfusion catheter 6, second transfusion catheter 9 by the first transfusion catheter joint 7 and the second transfusion catheter joint 8 mate be connected after connect into transfusion catheter, air bleeding valve 5 is positioned on the first transfusion catheter 6.During concrete enforcement, the first transfusion catheter 6 can realize being separated between the second transfusion catheter 9 by being separated between the first transfusion catheter joint 7 with the second transfusion catheter joint 8, realizes changing the first transfusion catheter 6 quickly and easily.In the embodiment of the present invention, when drainage screen 38 be positioned at air bleeding valve 5 outer time, drainage screen 38 can be positioned at the first transfusion catheter 6, and drainage screen 38 can follow being separated between the first transfusion catheter 6 with the second transfusion catheter 9, also change by the first transfusion catheter 6, easy to operate.
As shown in figure 12, described transfusion catheter is provided with fixing pad pasting 10, and described fixing pad pasting 10 is provided with the conduit installing hole 37 mated with transfusion catheter.Transfusion catheter by conduit installing hole 37 through fixing pad pasting 10, thus can realize fixing connection between pad pasting 10 and transfusion catheter.After fixing pad pasting 10 is connected with transfusion catheter, by fixing pad pasting 10 is folded into suitable size, then by fixing pad pasting 10, whole transfusion catheter is fixed on desired position.After transfusion catheter is fixing by fixing pad pasting 10, increases the fixed-area of transfusion catheter, improve the fixation degree of transfusion catheter, guarantee the safety of transfusion catheter in infusion process.
As shown in Figure 4, Figure 5 and Figure 6, when using remaining needle 11, need first to use puncture needle 21 to puncture, when using puncture needle 21, exposed puncture needle 21 easily causes the pollution of stabbing and to puncture needle 21, in the embodiment of the present invention, remaining needle 11 is provided with the puncture needle preventer to puncture needle 21.Described puncture needle preventer comprises puncture needle protection joint 22 and mantle seat 23; described puncture needle protection joint 22 is connected by flexible mantle 24 with between mantle seat 23; one end of puncture needle 21 is fixed in mantle seat 23; puncture needle protection joint 22 matches with the indwelling needle 3 of remaining needle 11 end; thus after being coordinated with indwelling needle 3 by puncture needle protection joint 22, whole preventer is arranged on remaining needle 11.When puncturing, puncture needle 21 is through puncture needle protection joint 22 and remaining needle 11, and namely the end of puncture needle 21 is positioned at outside remaining needle 11, to carry out the operation of puncturing.After puncture procedure completes, need whole puncture needle 21 to exit remaining needle 11.When operation is exited to puncture needle 21; puncture needle 21 is pulled out by mantle seat 23; simultaneously; the direction of motion that mantle 24 also follows mantle seat 23 is extended; until the head of puncture needle 21 is positioned at puncture needle protection joint 22; whole puncture needle 21 is all in the sealed environment of puncture needle protection joint 22 and mantle 24 encirclement, after being separated with indwelling needle 3 by puncture needle protection joint 22, to realize once complete puncture procedure.Due to when puncture needle 21 exits, exposed by mistake the stabbing operator of puncture needle 21 can be avoided by mantle 24 and puncture needle protection joint 22, also avoid directly contacting the cross infection that exposed puncture needle 21 causes simultaneously.After puncture needle protection joint 22 is separated with indwelling needle 3, remaining needle 11 carries out indwelling.
Further; puncture needle protection joint 22 comprises joint shell 25 and is positioned at the joint stem stem 26 of described joint shell 25; the second limiting plate 28 joint stem stem 26 being arranged the first limiting plate 27 and mate with described first limiting plate 27; by coordinating of the first limiting plate 27 and the second limiting plate 28; puncture needle 21 can be made to be pulled and to enter after in puncture needle protection joint 22; again can not pass puncture needle protection joint 22 enters in remaining needle 11, can avoid the maloperation to puncture needle 21.During concrete enforcement, in carving type between the first limiting plate 27 and the second limiting plate 28, after the head of puncture needle 21 is retracted into puncture needle protection joint 22, between the first limiting plate 27 and the second limiting plate 28, can stop that the head of puncture needle 21 enters in remaining needle 11.Mantle 24 adopts fexible film to make, and the length of mantle 24 is not less than the length of puncture needle 21, to guarantee whole puncture needle 21 to be enclosed in a closed environment by mantle 24.
In order to prevent when venous detaining needle uses blood backflow from entering in remaining needle 11, avoid causing the thromboembolism to remaining needle 11, the present invention includes remaining needle 11; Be provided with in described remaining needle 11 for preventing blood backflow from entering remaining needle switch in remaining needle 11 pipe.
Particularly, when not needing to be infused by remaining needle 11, carry out the passage in block blood inflow remaining needle 11, in case Hemostatic Oral Liquid enters in remaining needle 11 by remaining needle switch; When again needing to be infused by remaining needle 11, again being opened the infusion channel of remaining needle 11 by remaining needle switch, preventing blood backflow from entering in remaining needle 11 by above-mentioned switch, thus the service time of remaining needle 11 can be extended.
In the embodiment of the present invention, remaining needle switch can adopt different enforcement structures, as shown in Figure 13, Figure 14 and Figure 15, is the first form of implementation of remaining needle switch of the present invention.Particularly, described remaining needle switch comprises the adjusting rod 2 can inserted in remaining needle 11, the end, one end of described adjusting rod 2 is provided with the adjusting plug 12 mated with remaining needle 11, and the other end of adjusting rod 2 is provided with regulating handle 4, and described regulating handle 4 mates with the indwelling needle 3 of remaining needle 11 end; The sidewall of remaining needle 11 sets out fluid apertures 1, described liquid outlet 1 is connected with the cavity in remaining needle 11, adjusting plug 12 follows adjusting rod 2 when moving in remaining needle 11, can close or open the liquid outlet 1 on remaining needle 11 sidewall, to block or to open the circulation passage of remaining needle 11 tube chamber and liquid outlet 1.
Described liquid outlet 1 and indwelling needle 3 lay respectively at the two ends of remaining needle 11, adjusting rod 2 and remaining needle 11 are coaxially placed, the external diameter of adjusting plug 12 and the internal diameter of remaining needle 11 match, adjusting plug 12 can move axially in remaining needle 11, and the length of adjusting plug 12 can be greater than the length of liquid outlet 1.Regulating handle 4 is provided with step 13, and the location that can be realized between regulating handle 14 with indwelling needle 3 by step 13 is coordinated with spacing.In the present embodiment, when regulating handle 14 is just arranged in indwelling needle 3 completely by step 13, liquid outlet 1 is positioned at the front of adjusting plug 12, and namely adjusting plug 12 is positioned at endovascular end closer to remaining needle 11, now, remaining needle 11 can be infused normally by liquid outlet 1; When pulling back adjusting plug 12, the liquid outlet 1 on adjusting plug 12 energy shutoff remaining needle 11 sidewall, after closing liquid outlet 1, can be entered in remaining needle 11 by liquid outlet 1 by anti-Hemostatic Oral Liquid.After closing liquid outlet 1 by adjusting plug 12, then when needing to be infused by remaining needle 11, adjusting plug 12 is moved to after liquid outlet 1, remaining needle 11 can be made to carry out transfusion operation by liquid outlet 1.
Further, as shown in Figure 16 and Figure 17, described remaining needle switch comprises the first pouch 14 being positioned at remaining needle 11, described first pouch 14 and first for carrying out topping up or inflation to the first pouch 14 are led and fill pipe 15 and be connected, first leads and fills pipe 15 end be positioned at outside remaining needle 11 and be provided with sealing-plug 16, by first lead fill pipe 15 first pouch 14 is expanded or sunken time, block or the tube chamber of open remaining needle 11.
Described first pouch 14 is bonded on the inwall of remaining needle 11, first pouch 14 is positioned at the fluid port of remaining needle 11, first leads and fills pipe 15 and be connected with the first pouch 14 through after remaining needle 11, first leads and fills pipe 15 and be positioned at the partial fixing of remaining needle 11 on the inwall of remaining needle 11, first leads and fills pipe 15 and be positioned at partial fixing outside remaining needle 11 on the outer wall of remaining needle 11, first leads the caliber that fills pipe 15 key much smaller than remaining needle 11, to guarantee the normal use that can not affect remaining needle 11.Pipe 15 is filled to the first pouch 14 topping up or after inflating when leading by first, match with the internal diameter of remaining needle 11 after first pouch 14 expands, namely the first pouch 14 forms a barrier membrane in remaining needle 11, barrier membrane is consistent with the internal diameter of remaining needle 11, enter in remaining needle 11 by barrier membrane energy block blood by the fluid port backflow of remaining needle 11, when guaranteeing not need to be infused by remaining needle 11, block blood backflow enters in remaining needle 11.First leads the sealing-plug 16 filling pipe 15 end can keep the state of the first pouch 14 before and after topping up or inflation.When needs normally use remaining needle 11, by seal valve 16 by the liquid in the first pouch 14 or air release, after the volume-diminished of the first pouch 14, the medicinal liquid entered in remaining needle 11 carries out normal transfusion operation by fluid port.
As shown in Figure 18 and Figure 19, described remaining needle switch comprises the second pouch 17 being positioned at remaining needle 11, described second pouch 17 and second for carrying out topping up or inflation to described second pouch 17 are led and fill pipe 18 and be connected, second leads and fills pipe 18 and be provided with leading of mating with the indwelling needle 3 of remaining needle 11 end and fill base 19, second leads and fills pipe 18 and fill base 19 be installed in remaining needle 11 by leading, by second lead fill pipe 18 second pouch 17 is expanded or sunken time, block or the tube chamber of open remaining needle 11.
Described second leads and fills pipe 18 and coaxially place with remaining needle 11, and the second pouch 17, when non-topping up or unaerated, does not contact with the inwall of remaining needle 11.Second pouch 17 is positioned at the liquid outlet of remaining needle 11, and second leads and fill pipe 18 and fill base 19 be arranged in remaining needle 11 by leading, and leads to fill in base 19 to be provided with second and to lead and fill pipe and fill mouth 20, leads fill pipe and fill mouth 20 and can carry out topping up or inflation to the second pouch 17 by second.When after the second pouch 17 topping up or inflation, the second pouch 17 can contact with the inwall of remaining needle 11, and form a barrier membrane, barrier membrane is consistent with the internal diameter of remaining needle 11, is entered in remaining needle 11 by the backflow of barrier membrane energy block blood.Second leads the caliber that fills pipe 18 caliber much smaller than remaining needle 11, when needs are infused by remaining needle 11, to guarantee that second leads and fill the normal use that pipe 18 and the second pouch 17 can not affect remaining needle 11.Second leads and fills pipe and fill on mouth 20 and can arrange sealing-plug, is kept the topping up of the second pouch 17 by sealing-plug, is inflated forward and backward state.After the liquid in the second pouch 17 or air release, the normal use of remaining needle 11 can be ensured.
The liquid that the present invention can be entered in remaining needle 11 by drainage screen 38 effectively filters, and guarantees the degree of purity being carried out transfusion liquid by remaining needle 11, opening or closing simultaneously by air bleeding valve 5, can effectively stop gas to enter vein blood vessel and avoid polluting; Can prevent blood backflow from entering in remaining needle 11 by arranging remaining needle switch in remaining needle 11, avoiding the thromboembolism of blood in remaining needle 11; That puncture needle 21 can be avoided to cause by puncture needle preventer stabs and cross infection by mistake, simple and compact for structure, easy to use, extends the service time of remaining needle, wide accommodation, safe and reliable.
Claims (7)
1. one kind from exhaust gas filter type remaining needle, the transfusion catheter comprising remaining needle (11) and be connected with described remaining needle (11), described transfusion catheter is provided with the air bleeding valve (5) that can carry out on off state adjustment and the drainage screen (38) for filtration of particulate matters; Described drainage screen (38) is positioned at air bleeding valve (5), or drainage screen (38) is positioned at transfusion catheter and is connected in series with air bleeding valve (5);
It is characterized in that: described air bleeding valve (5) comprises air bleeding valve base (30) and mates with described air bleeding valve base (30) the aerofluxus adjustable cap (31) being connected and also can regulating described air bleeding valve (5) on off state, is provided with the film that blocks water (29) in air bleeding valve base (30);
Described air bleeding valve base (30) is provided with base venthole, described aerofluxus adjustable cap (31) is provided with adjustable cap pore, aerofluxus adjustable cap (31) can in the upper rotation of air bleeding valve base (30), and aerofluxus adjustable cap (31) when rotating on air bleeding valve base (30), base venthole can be connected with adjustable cap pore.
2. according to claim 1 from exhaust gas filter type remaining needle, it is characterized in that: be provided with puncture needle (21) in described remaining needle (11), described puncture needle (21) is installed on remaining needle (11) by puncture needle preventer.
3. according to claim 2 from exhaust gas filter type remaining needle; it is characterized in that: described puncture needle preventer comprises the puncture needle mated with the indwelling needle (3) of remaining needle (11) end and protects joint (22); puncture needle protection joint (22) is connected with mantle seat (23) by flexible mantle (24); the afterbody of puncture needle (21) is fixed in mantle seat (23), and the head of puncture needle (21) can stretch in remaining needle (11) through puncture needle protection joint (22).
4. according to claim 3 from exhaust gas filter type remaining needle, it is characterized in that: described puncture needle protection joint (22) comprises joint shell (25), joint stem stem (26) is provided with, the second limiting plate (28) that described joint stem stem (26) is provided with the first limiting plate (27) and mates with described first limiting plate (27) in described joint shell (25); The head of puncture needle (21) is retracted into after in puncture needle protection joint (22), the head of puncture needle (21) can be stoped again to expose by the first limiting plate (27) and the second limiting plate (28).
5. according to claim 1 from exhaust gas filter type remaining needle, it is characterized in that: in described remaining needle (11), be provided with the remaining needle switch for controlling the interior tube chamber on off state of remaining needle (11).
6. according to claim 5 from exhaust gas filter type remaining needle, it is characterized in that: described remaining needle switch comprises the adjusting rod (2) can inserted in remaining needle (11), the end, one end of described adjusting rod (2) is provided with the adjusting plug (12) mated with remaining needle (11), the other end of adjusting rod (2) is provided with regulating handle (4), and described regulating handle (4) mates with the indwelling needle (3) of remaining needle (11) end; The sidewall of remaining needle (11) sets out fluid apertures (1), described liquid outlet (1) is connected with the cavity in remaining needle (11), adjusting plug (12) follows adjusting rod (2) when moving in remaining needle (11), can close or open the liquid outlet (1) on remaining needle (11) sidewall, to block or to open the circulation passage of remaining needle (11) tube chamber and liquid outlet (1).
7. according to claim 5 from exhaust gas filter type remaining needle, it is characterized in that: described remaining needle switch comprises the second pouch (17) being positioned at remaining needle (11), described second pouch (17) and second for carrying out topping up or inflation to described second pouch (17) are led to fill and manage (18) and be connected, second leads and fills pipe (18) and be provided with leading of mating with the indwelling needle (3) of remaining needle (11) end and fill base (19), second leads and fills pipe (18) and fill base (19) be installed in remaining needle (11) by leading, by second lead fill pipe (18) make the second pouch (17) expand or sunken time, block or open the tube chamber of remaining needle (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156232.6A CN103933637B (en) | 2014-04-17 | 2014-04-17 | From exhaust gas filter type remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156232.6A CN103933637B (en) | 2014-04-17 | 2014-04-17 | From exhaust gas filter type remaining needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103933637A CN103933637A (en) | 2014-07-23 |
| CN103933637B true CN103933637B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410156232.6A Active CN103933637B (en) | 2014-04-17 | 2014-04-17 | From exhaust gas filter type remaining needle |
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| CN (1) | CN103933637B (en) |
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| CN101711904A (en) * | 2009-11-23 | 2010-05-26 | 上海振浦医疗设备有限公司 | Disposable precision filter infusion set for children |
| CN201492772U (en) * | 2009-09-02 | 2010-06-02 | 淄博中保康医疗器具有限公司 | Precise medicine liquid filter with vent valve |
| CN201692443U (en) * | 2009-10-13 | 2011-01-05 | 武汉智迅创源科技发展有限公司 | Automatic vent safe infusion device |
| CN102512723A (en) * | 2011-08-04 | 2012-06-27 | 山东新华安得医疗用品有限公司 | Self-exhaust and bubble-proof transfusion apparatus |
| CN103691027A (en) * | 2014-01-07 | 2014-04-02 | 江苏苏云医疗器材有限公司 | Puncture connector type transfusion device |
| CN204017011U (en) * | 2014-04-17 | 2014-12-17 | 高宏 | From exhaust gas filter type remaining needle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201492772U (en) * | 2009-09-02 | 2010-06-02 | 淄博中保康医疗器具有限公司 | Precise medicine liquid filter with vent valve |
| CN201692443U (en) * | 2009-10-13 | 2011-01-05 | 武汉智迅创源科技发展有限公司 | Automatic vent safe infusion device |
| CN101711904A (en) * | 2009-11-23 | 2010-05-26 | 上海振浦医疗设备有限公司 | Disposable precision filter infusion set for children |
| CN102512723A (en) * | 2011-08-04 | 2012-06-27 | 山东新华安得医疗用品有限公司 | Self-exhaust and bubble-proof transfusion apparatus |
| CN103691027A (en) * | 2014-01-07 | 2014-04-02 | 江苏苏云医疗器材有限公司 | Puncture connector type transfusion device |
| CN204017011U (en) * | 2014-04-17 | 2014-12-17 | 高宏 | From exhaust gas filter type remaining needle |
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| Publication number | Publication date |
|---|---|
| CN103933637A (en) | 2014-07-23 |
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Inventor after: Ma Lixun Inventor before: Gao Hong Inventor before: Lu Peihua |
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Effective date of registration: 20170703 Address after: 266000 No. 681-1, unity Road, Huangdao District, Shandong, Qingdao Patentee after: Jiakang Medical Apparatus (Qingdao) Co., Ltd. Address before: Nanchang District 214023 in Jiangsu province Wuxi City Qingyang Road No. 299, Wuxi City People's Hospital Co-patentee before: Lu Peihua Patentee before: Gao Hong |