CN204017013U - Venous detaining needle - Google Patents
Venous detaining needle Download PDFInfo
- Publication number
- CN204017013U CN204017013U CN201420189329.2U CN201420189329U CN204017013U CN 204017013 U CN204017013 U CN 204017013U CN 201420189329 U CN201420189329 U CN 201420189329U CN 204017013 U CN204017013 U CN 204017013U
- Authority
- CN
- China
- Prior art keywords
- needle
- remaining needle
- remaining
- air bleeding
- bleeding valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
This utility model relates to a kind of medical apparatus and instruments, especially a kind of venous detaining needle.The technical scheme providing according to this utility model, described venous detaining needle, comprises remaining needle and the transfusion catheter being connected with described remaining needle; Described transfusion catheter is provided with the air bleeding valve that can carry out switch adjusting.This utility model opens or closes by air bleeding valve, can effectively stop gas to enter vein blood vessel and avoid polluting; By remaining needle switch is set in remaining needle, can prevent that blood backflow from entering in remaining needle, avoid the thromboembolism of blood in remaining needle; That by puncture needle preventer, can avoid that puncture needle causes stabs and cross infection by mistake, simple and compact for structure, easy to use, extends the service time of remaining needle, and wide accommodation is safe and reliable.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, especially a kind of venous detaining needle.
Background technology
Venous detaining needle is the conventional medical apparatus and instruments in nursery work, have easy to use, the effect of minimizing to patient's puncture time, thereby repeated localised puncture while also having reduced clinical transfusion, reduce patient's puncture misery and the workload of clinical nursing staff, thereby obtained extensive use current in clinical.
In existing venous detaining needle, generally comprise: puncture needle, remaining needle and transfusion catheter.During use, first, user inserts puncture needle UNICOM remaining needle patient's injection position, then, by puncture needle, is guided remaining needle is imported to patient vessel, last, and puncture needle is extracted out, remaining needle is stayed in patient vessel, and fixed with the pad pasting of applying ointment or plaster.During use, a tube for transfusion is arranged in and in remaining needle, carries out drop.
1), when by being connected in the liquid-transport pipe-line of remaining needle or threeway stopcock is infused to remaining needle or during injection, may follow gas to enter vein blood vessel the common disadvantage of existing remaining needle is:; 2), remaining needle is retained in patient vessel, though carried out washing pipe nursing, often still has remaining needle to be occurred by blood thromboembolism, especially the patient of high blood coagulation state; 3), when retained needle puncture has operated, while extracting puncture needle, may stab operator, when staff processes this garbage, also may be wounded by stabbing, and may cause cross infection; 4), remaining needle is fixedly time, the special-purpose pad pasting of taking specially, inconvenience; Meanwhile, the fixed form posting outward when tube for transfusion is subject to external force, pad pasting forced section live poly-at transfusion catheter position, very easily avulsion, and then cause remaining needle to be deviate from.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of venous detaining needle is provided, it is simple and compact for structure, easy to use, can effectively prevent gaseous contamination, effectively prevent the thromboembolism of remaining needle, extend the service life of remaining needle, can avoid the stabbing of operator, wide accommodation, safe and reliable.
The technical scheme providing according to this utility model, described venous detaining needle, comprises remaining needle and the transfusion catheter being connected with described remaining needle; Described transfusion catheter is provided with the air bleeding valve that can carry out on off state adjusting.
Described air bleeding valve comprises air bleeding valve base and is connected the aerofluxus adjustable cap that also can regulate described exhaust valve open off status with described air bleeding valve base coupling, in air bleeding valve base, is provided with the film that blocks water.
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 aerofluxus adjustable cap is when rotate on air bleeding valve base, and base venthole can be connected with adjustable cap pore.
In described remaining needle, be provided with puncture needle, described puncture needle is installed on remaining needle by puncture needle preventer.
Described puncture needle preventer comprises the puncture needle protection joint mating with the indwelling needle of remaining needle end; 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 the first limiting plate in described joint shell; The head of puncture needle can stop the head of puncture needle again to expose by the first limiting plate and the second limiting plate after being retracted in puncture needle protection joint, thereby avoid stabbing other people, causes cross infection.
In described remaining needle, be provided with for controlling the remaining needle switch of tube chamber on off state in remaining needle.
Described remaining needle switch comprises the adjusting rod that can insert in remaining needle, and the end, one end of described adjusting rod is provided with the adjusting plug mating 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; On the sidewall of remaining needle, liquid outlet is set, described liquid outlet is connected with the cavity in remaining needle, adjusting plug is followed adjusting rod while moving in remaining needle, can seal or open remaining needle sidewall on liquid outlet, to block or to open the circulation passage of remaining needle tube chamber and liquid outlet.
Described remaining needle switch comprises the second pouch that is positioned at remaining needle, described the second pouch with for described the second pouch being carried out to second of topping up or inflation, lead 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 and be installed in remaining needle by leading, by second, lead and fill pipe and the second pouch is expanded or when sunken, the tube chamber of blocking-up or open remaining needle.
Described transfusion catheter is provided with fixedly pad pasting, and described fixedly pad pasting is provided with the conduit installing hole mating with transfusion catheter.
Advantage of the present utility model: by opening or closing of air bleeding valve, can effectively stop gas to enter vein blood vessel and avoid polluting; By remaining needle switch is set in remaining needle, can prevent that blood backflow from entering in remaining needle, avoid the thromboembolism of blood in remaining needle; That by puncture needle preventer, can avoid that puncture needle causes stabs and cross infection by mistake, simple and compact for structure, easy to use, extends the service time of remaining needle, and wide accommodation is safe and reliable.
Accompanying drawing explanation
Fig. 1 arranges the structural representation of puncture needle preventer on this utility model remaining needle.
Fig. 2 is the structural representation of this utility model puncture needle preventer.
Fig. 3 is the structural representation of this utility model puncture needle protection joint.
Fig. 4 is the structural representation of this utility model air bleeding valve.
Fig. 5 is the structural representation of this utility model aerofluxus adjustable cap.
Fig. 6 is a kind of structural representation of this utility model air bleeding valve base.
Fig. 7 is the another kind of structural representation of this utility model air bleeding valve base.
Fig. 8 arranges the structural representation of runner on this utility model air bleeding valve base.
Fig. 9 is the fixedly structural representation of pad pasting of this utility model.
Figure 10 is a kind of enforcement structural representation of this utility model remaining needle switch.
Figure 11 is the using state figure that in Figure 10, remaining needle switch cuts out remaining needle.
Figure 12 is the structural representation of remaining needle switch in Figure 10.
Figure 13 is that the another kind of this utility model remaining needle switch is implemented structural representation.
Figure 14 is the using state figure that in Figure 13, remaining needle switch cuts out remaining needle.
Figure 15 is the third enforcement structural representation of this utility model remaining needle switch.
Figure 16 is the using state figure that in Figure 15, 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-the first transfusion catheter, 7-the first transfusion catheter joint, 8-the second transfusion catheter joint, 9-the second transfusion catheter, 10-is pad pasting fixedly, 11-remaining needle, 12-adjusting plug, 13-step, 14-the first pouch, 15-first leads and fills pipe, 16-sealing-plug, 17-the 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-the first limiting plate, 28-the second limiting plate, the 29-film that blocks water, 30-air bleeding valve base, 31-aerofluxus adjustable cap, 32-the first venthole, 33-barrier plate, 34-the second venthole, 35-runner, 36-base give vent to anger side opening and 37-conduit installing hole.
The specific embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Figure 1 and Figure 4: the gas in use causing for fear of venous detaining needle enters venous line, this utility model comprises remaining needle 11 and the transfusion catheter being connected with described remaining needle 11; Described transfusion catheter is provided with the air bleeding valve 5 that can carry out switch adjusting.
Particularly, during transfusion, described air bleeding valve 5 can be by the Bas Discharged entering in transfusion catheter; Keep somewhere while not infusing, in order to prevent that air from entering in transfusion catheter, pollute, air bleeding valve 5 can be closed.
Can make air bleeding valve 5 can carry out controlled opening/closing, described air bleeding valve 5 comprises air bleeding valve base 30 and is connected the aerofluxus adjustable cap 31 that also can regulate described air bleeding valve 5 opening degrees with described air bleeding valve base 30 couplings, 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 blocking water after film 29, by air bleeding valve base 30 and aerofluxus adjustable cap 31, overflows, and realizes the effect of aerofluxus.When entering the passage in air bleeding valve 5 by aerofluxus adjustable cap 31 with air bleeding valve base 30 shutoff extraneous airs, can avoid external contamination, guarantee the use safety of whole venous detaining needle.
In order conveniently to 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 when aerofluxus adjustable cap 31 rotates on air bleeding valve base 30, base venthole can be connected with adjustable cap pore.In the specific implementation, between base venthole and adjustable cap pore, there is multiple enforcement relation, when being communicated with between base venthole and adjustable cap pore, make air bleeding valve 5 in open mode; When between base venthole and adjustable cap pore when stopping (not being communicated with) state, make air bleeding valve 5 in closed condition.
Further, as shown in Figure 5 and Figure 6, described aerofluxus adjustable cap 31 is provided with some the first ventholes 32, in air bleeding valve base 30, be provided with barrier plate 33, 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 aerofluxus adjustable cap 31 is when rotate on air bleeding valve base 30, the on off state of the position adjustments air bleeding valve 5 by 34 of the first venthole 32 and the second ventholes.Particularly, described barrier plate 33 can be positioned at the top of the film 29 that blocks water, the first venthole 32 and the second venthole 32 can be staggered, when aerofluxus adjustable cap 31 rotates on air bleeding valve base 30, the first venthole 32 can be in overlapping completely with 32 of the second ventholes, the state that staggers completely or partially overlap, when when overlapping completely or partially overlapping, the gas that enters air bleeding valve 5 can be overflowed by air bleeding valve 5, when when all staggering, can prevent that extraneous gas from entering in air bleeding valve 5, thereby by above-mentioned diverse location, regulate the opening degree of whole air bleeding valve 5, can conveniently realize aerofluxus or close the operation of whole air bleeding valve 5.
As shown in Figure 7 and Figure 8, described air bleeding valve 5 comprises air bleeding valve base 30 and is connected the air bleeding valve adjustable cap 31 that also can regulate described air bleeding valve 5 opening degrees with described air bleeding valve base 30 couplings, in air bleeding valve base 30, be provided with the film 29 that blocks water, in air bleeding valve base 30, be provided with some runners 35, the sidewall of air bleeding valve base 30 is provided with some bases side opening 36 of giving vent to anger, air bleeding valve adjustable cap 31 be provided with some can with the base adjustable cap side opening that side opening 36 is connected of giving vent to anger; Aerofluxus adjustable cap 31 can rotate on air bleeding valve base 30, and aerofluxus adjustable cap 31 is when rotate on air bleeding valve base 30, by the give vent to anger on off state of position adjustments air bleeding valve 5 of 36 of side openings of adjustable cap side opening and base.
Particularly, by 35 pairs of medicinal liquids of runner, carry out water conservancy diversion, by the air in medicinal liquid after water conservancy diversion, can make gas effectively overflow.Described runner 35 can form by a plurality of dividing plates, and described runner 35 is consistent with the circulating direction of medicinal liquid.Blocking water film 39 can be in top or the top position of runner 35.The base side opening 36 of giving vent to anger is distributed on the sidewall of air bleeding valve base 30, and the described base side opening 36 of giving vent to anger is positioned at the top of the film 29 that blocks water, base give 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 lid-like, on the sidewall of air bleeding valve adjustable cap 31, be also provided with some corresponding adjustable cap side openings that distribute, when described aerofluxus adjustable cap 31 is arranged on air bleeding valve base 30, adjustable cap side opening is given vent to anger 36 of side openings with the base on air bleeding valve base 30 can be in whole states that overlap, all stagger or partially overlap, when in whole coincidences or while partially overlapping, entering air in air bleeding valve 5 can overflow by adjustable cap side opening and the base side opening 36 of giving vent to anger, and can guarantee the normal use of air bleeding valve 5.When all staggering, can stop outside gas to enter in air bleeding valve 5, thereby realize, the on off state of air bleeding valve 5 is regulated.
Further, described transfusion catheter can be structure as a whole, and can be also 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 the 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 mating with the second transfusion catheter joint 8, the first transfusion catheter 6, the second transfusion catheter 9 connect into transfusion catheter after being connected with the second transfusion catheter joint 8 couplings by the first transfusion catheter joint 7, and air bleeding valve 5 is positioned on the first transfusion catheter 6.During concrete enforcement, what the first transfusion catheter 6 can be by between the separated realization between the first transfusion catheter joint 7 and the second transfusion catheter joint 8 and the second transfusion catheter 9 is separated, realizes and changes quickly and easily the first transfusion catheter 6.
As shown in Figure 9, described transfusion catheter is provided with fixedly pad pasting 10, and described fixedly pad pasting 10 is provided with the conduit installing hole 37 mating with transfusion catheter.Transfusion catheter can be by conduit installing hole 37 through fixing pad pasting 10, thus fixing being connected between pad pasting 10 and transfusion catheter of realization.After fixedly 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 to desired position.Transfusion catheter, by after fixedly pad pasting 10 is fixed, increases the fixed-area of transfusion catheter, improves the fixation degree of transfusion catheter, guarantees the safety of transfusion catheter in infusion process.
As shown in Figure 1, Figure 2 and Figure 3, when using remaining needle 11, need to first use puncture needle 21 to puncture, while using puncture needle 21, exposed puncture needle 21 easily causes stabs and the pollution to puncture needle 21, in this utility model embodiment, 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 23 of mantle seats; 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 ends; thereby after protecting joint 22 to coordinate with indwelling needle 3 by puncture needle, whole preventer is arranged on remaining needle 11.When puncture, puncture needle 21 is through puncture needle protection joint 22 and remaining needle 11, and the end of puncture needle 21 is positioned at outside remaining needle 11, so that the operation of puncturing.After puncture procedure completes, whole puncture needle 21 need to be exited to remaining needle 11.When puncture needle 21 is exited to operation; by mantle seat 23, pull out puncture needle 21; simultaneously; mantle 24 is also followed the direction of motion of mantle seat 23 and is extended; until the head of puncture needle 21 is positioned at puncture needle protection joint 22; whole puncture needle 21 is all protected in the sealed environment of joint 22 and mantle 24 encirclements, after protecting joint 22 separated with indwelling needle 3 by puncture needle, to realize once complete puncture procedure in puncture needle.Due to when puncture needle 21 exits, by mantle 24 and puncture needle protection joint 22, can avoid puncture needle 21 exposed to the stabbing of operator by mistake, 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 is kept somewhere.
Further; the joint stem stem 26 that puncture needle protection joint 22 comprises joint shell 25 and is positioned at described joint shell 25; the second limiting plate 28 that the first limiting plate 27 is set on joint stem stem 26 and mates with described the first limiting plate 27; by coordinating of the first limiting plate 27 and the second limiting plate 28; after making puncture needle 21 be pulled to enter puncture needle protection joint 22 interior; can not again pass puncture needle protection joint 22 and enter in remaining needle 11, can avoid the maloperation to puncture needle 21.During concrete enforcement, the first limiting plate 27 and 28 of the second limiting plates are the type of carving, and be retracted into puncture needle protect after joint 22 at the head of puncture needle 21, and the first limiting plate 27 and 28 of the second limiting plates can stop that the head of puncture needle 21 enters in remaining needle 11.Mantle 24 adopts fexible films to make, and the length of mantle 24 is not less than the length of puncture needle 21, whole puncture needle 21 can be enclosed in the environment of a sealing guaranteeing by mantle 24.
In order to prevent when venous detaining needle is used that blood backflow from entering in remaining needle 11, avoid causing the thromboembolism to remaining needle 11, this utility model comprises remaining needle 11; In described remaining needle 11, be provided with for preventing that blood backflow from entering the remaining needle switch in remaining needle 11 pipes.
Particularly, when not needing to infuse by remaining needle 11, by remaining needle switch, come block blood to flow into the passage in remaining needle 11, in case Hemostatic Oral Liquid enters in remaining needle 11; When again needing to infuse by remaining needle 11, by remaining needle switch, again open the infusion channel of remaining needle 11, by above-mentioned switch, prevent that blood backflow from entering in remaining needle 11, thereby can extend the service time of remaining needle 11.
In this utility model embodiment, remaining needle switch can adopt different enforcement structures, as shown in Figure 10, Figure 11 and Figure 12, is the first form of implementation of this utility model remaining needle switch.Particularly, described remaining needle switch comprises the adjusting rod 2 that can insert in remaining needle 11, the end, one end of described adjusting rod 2 is provided with the adjusting plug 12 mating 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 ends; Liquid outlet 1 is set on the sidewall of remaining needle 11, described liquid outlet 1 is connected with the cavity in remaining needle 11, adjusting plug 12 is followed adjusting rod 2 when the interior motion of remaining needle 11, can seal or open the liquid outlet 1 on remaining needle 11 sidewalls, to block or to open the circulation passage of remaining needle 11 tube chambers 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 is coaxially placed with remaining needle 11, the internal diameter of the external diameter of adjusting plug 12 and remaining needle 11 matches, 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, can realize regulating handle 14 coordinate with spacing with the location of 3 of indwelling needles by step 13.In the present embodiment, regulating handle 14 is just arranged on indwelling needle 3 when interior completely by step 13, and liquid outlet 1 is positioned at the place ahead of adjusting plug 12, and the more close remaining needle 11 of adjusting plug 12 is positioned at endovascular end, 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 sidewalls, after sealing liquid outlet 1, can enter in remaining needle 11 by liquid outlet 1 by anti-Hemostatic Oral Liquid.After by adjusting plug 12 sealing liquid outlets 1, then while needing to infuse by remaining needle 11, by adjusting plug 12 move to liquid outlet 1 after, can make remaining needle 11 carry out transfusion operation by liquid outlet 1.
Further, as shown in Figure 13 and Figure 14, described remaining needle switch comprises the first pouch 14 that is positioned at remaining needle 11, described the first pouch 14 with for the first pouch 14 being carried out to first of topping up or inflation, lead and fill pipe and 15 be connected, first lead fill pipe 15 ends that are positioned at outside remaining needle 11 be provided with sealing-plug 16, by first, lead and fill pipe 15 and the first pouch 14 is expanded or when sunken, the tube chamber of blocking-up or open remaining needle 11.
Described the first pouch 14 is bonded on the inwall of remaining needle 11, the 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 lead fill pipe 15 partial fixings that are positioned at 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 and fills pipe 15 caliber much smaller than the key of remaining needle 11, to guarantee can not affect the normal use of remaining needle 11.When leading and fill after 15 pairs of the first pouch 14 topping ups of pipe or inflation by first, the internal diameter that the first pouch 14 expands rear and remaining needle 11 matches, the first pouch 14 is at barrier membrane of the interior formation of remaining needle 11, barrier membrane is consistent with the internal diameter of remaining needle 11, fluid port backflow by barrier membrane energy block blood by remaining needle 11 enters in remaining needle 11, while guaranteeing not need to infuse by remaining needle 11, block blood refluxes and enters in remaining needle 11.First lead fill pipe 15 ends sealing-plug 16 can keep the first pouch 14 topping up or inflation before and after state.When needs are normally used remaining needle 11, by seal valve 16, by liquid or air release in the first pouch 14, after the volume-diminished of the first pouch 14, the medicinal liquid entering in remaining needle 11 can carry out normal transfusion operation by fluid port.
As shown in Figure 15 and Figure 16, described remaining needle switch comprises the second pouch 17 that is positioned at remaining needle 11, described the second pouch 17 with for described the second pouch 17 being carried out to second of topping up or inflation, lead and fill pipe and 18 be connected, second leads and fills pipe 18 and be provided with leading of mating with the indwelling needle 3 of remaining needle 11 ends and fill base 19, second leads and fills pipe 18 and fill base 19 and be installed in remaining needle 11 by leading, by second, lead and fill pipe 18 and the second pouch 17 is expanded or when sunken, the tube chamber of blocking-up or open remaining needle 11.
Described second leads and fills pipe 18 and coaxially place with remaining needle 11, and the second pouch 17, when topping up not or unaerated, does not contact with the inwall of remaining needle 11.The second pouch 17 is positioned at the liquid outlet of remaining needle 11, and second leads and fill pipe 18 and fill base 19 and 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 mouthfuls 20, by second, leads and fills pipe and fill mouthfuls 20 and can carry out topping up or inflation to the second pouch 17.After the second pouch 17 topping ups or inflation, the second pouch 17 can contact with the inwall of remaining needle 11, forms a barrier membrane, and barrier membrane is consistent with the internal diameter of remaining needle 11, by barrier membrane energy block blood, is refluxed and is entered in remaining needle 11.Second leads and fills pipe 18 caliber much smaller than the caliber of remaining needle 11, when needs are infused by remaining needle 11, to guarantee that second leads and fill the normal use that pipe the 18 and second pouch 17 can not affect remaining needle 11.Second leads and fills pipe and fill on mouthfuls 20 sealing-plug can be set, by sealing-plug keep the second pouch 17 topping up, inflate forward and backward state.By after the liquid in the second pouch 17 or air release, can guarantee the normal use of remaining needle 11.
This utility model opens or closes by air bleeding valve 5, can effectively stop gas to enter vein blood vessel and avoid polluting; By preventing that at the interior remaining needle switch that arranges of remaining needle 11 blood backflow from entering in remaining needle 11, avoid the thromboembolism of blood in remaining needle 11; That by puncture needle preventer, can avoid that puncture needle 21 causes stabs and cross infection by mistake, simple and compact for structure, easy to use, extends the service time of remaining needle, and wide accommodation is safe and reliable.
Claims (10)
1. a venous detaining needle, comprises remaining needle (11) and the transfusion catheter being connected with described remaining needle (11); It is characterized in that: described transfusion catheter is provided with the air bleeding valve (5) that can carry out on off state adjusting.
2. venous detaining needle according to claim 1, it is characterized in that: described air bleeding valve (5) comprises air bleeding valve base (30) and is connected the aerofluxus adjustable cap (31) that also can regulate described air bleeding valve (5) on off state with described air bleeding valve base (30) coupling, is provided with the film that blocks water (29) in air bleeding valve base (30).
3. venous detaining needle according to claim 2, it is characterized in that: 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 be in the upper rotation of air bleeding valve base (30), and aerofluxus adjustable cap (31) is when the upper rotation of air bleeding valve base (30), and base venthole can be connected with adjustable cap pore.
4. venous detaining needle according to claim 1, is characterized in that: in described remaining needle (11), be provided with puncture needle (21), described puncture needle (21) is installed on remaining needle (11) by puncture needle preventer.
5. venous detaining needle according to claim 4; it is characterized in that: described puncture needle preventer comprises the puncture needle protection joint (22) mating with the indwelling needle (3) of remaining needle (11) end; 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).
6. venous detaining needle according to claim 5, it is characterized in that: described puncture needle protection joint (22) comprises joint shell (25), in described joint shell (25), be provided with joint stem stem (26), the second limiting plate (28) that described joint stem stem (26) is provided with the first limiting plate (27) and mates with described the first limiting plate (27); The head of puncture needle (21) can stop the head of puncture needle (21) again to expose by the first limiting plate (27) and the second limiting plate (28) after being retracted in puncture needle protection joint (22).
7. venous detaining needle according to claim 1, is characterized in that: in described remaining needle (11), be provided with for controlling the remaining needle switch of the interior tube chamber on off state of remaining needle (11).
8. venous detaining needle according to claim 7, it is characterized in that: described remaining needle switch comprises the adjusting rod (2) that can insert in remaining needle (11), the end, one end of described adjusting rod (2) is provided with the adjusting plug (12) mating 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; Liquid outlet (1) is set on the sidewall of remaining needle (11), described liquid outlet (1) is connected with the cavity in remaining needle (11), adjusting plug (12) is followed adjusting rod (2) while moving in remaining needle (11), can seal 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).
9. venous detaining needle according to claim 7, it is characterized in that: described remaining needle switch comprises the second pouch (17) that is positioned at remaining needle (11), described the second pouch (17) with for described the second pouch (17) being carried out to second of topping up or inflation, lead 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) and be installed in remaining needle (11) by leading, by second, lead and fill pipe (18) and the second pouch (17) is expanded or when sunken, the tube chamber of blocking-up or open remaining needle (11).
10. venous detaining needle according to claim 1, is characterized in that: described transfusion catheter is provided with fixedly pad pasting (10), and described fixedly pad pasting (10) is provided with the conduit installing hole (37) mating with transfusion catheter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189329.2U CN204017013U (en) | 2014-04-17 | 2014-04-17 | Venous detaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189329.2U CN204017013U (en) | 2014-04-17 | 2014-04-17 | Venous detaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204017013U true CN204017013U (en) | 2014-12-17 |
Family
ID=52056931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420189329.2U Expired - Fee Related CN204017013U (en) | 2014-04-17 | 2014-04-17 | Venous detaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204017013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933636A (en) * | 2014-04-17 | 2014-07-23 | 高宏 | Venous indwelling needle |
-
2014
- 2014-04-17 CN CN201420189329.2U patent/CN204017013U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933636A (en) * | 2014-04-17 | 2014-07-23 | 高宏 | Venous indwelling needle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103933635B (en) | Switchable venous detaining needle | |
| CN203802520U (en) | Anorectal disease and crissum postoperation compression hemostasis device | |
| CN201658732U (en) | Backflow-preventing catheter | |
| CN204017012U (en) | Venous detaining needle that can switch | |
| CN103933636B (en) | Venous detaining needle | |
| CN204017013U (en) | Venous detaining needle | |
| CN204017011U (en) | From exhaust gas filter type remaining needle | |
| CN204745116U (en) | A crossover sub that is used for connection center ductus venosus and ordinary drainage bag | |
| CN202236699U (en) | Disposable automatic cut-off transfusion device | |
| CN203598294U (en) | Drainage bag for bladder irrigation | |
| CN202154903U (en) | Disposable automatic exhaust infusion set | |
| CN204951810U (en) | Hematology is with intelligence blood transfusion device | |
| CN109303941B (en) | Disposable enemator | |
| CN103933637B (en) | From exhaust gas filter type remaining needle | |
| CN201500327U (en) | Closed intestinal tract flushing and drainage device | |
| CN110251764A (en) | Irrigation of rectum closestool | |
| CN102580190A (en) | Disposable self-limiting and self-stopping transfusion system | |
| CN206566282U (en) | Leak-proof device for enema syringe | |
| CN203090195U (en) | Catheter preventing liquid from flowing back | |
| CN211584646U (en) | Transparent remaining needle with positive pressure air bag | |
| CN202982727U (en) | Disposable orthopedic nursing guiding device | |
| CN204468796U (en) | A kind of cardiothoracic surgery enclosed nursing drainage device | |
| CN204017001U (en) | A kind of quantitatively-controlled type automatic liquid-stopping transfusion apparatus | |
| CN204563100U (en) | A kind of Enemator | |
| CN103893851A (en) | Medical enemator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20170417 |