CN204766842U - Needleless infusion prevents that needle is kept somewhere to vein against current - Google Patents

Needleless infusion prevents that needle is kept somewhere to vein against current Download PDF

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Publication number
CN204766842U
CN204766842U CN201520439044.4U CN201520439044U CN204766842U CN 204766842 U CN204766842 U CN 204766842U CN 201520439044 U CN201520439044 U CN 201520439044U CN 204766842 U CN204766842 U CN 204766842U
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China
Prior art keywords
needle
shell
transfusion
inner chamber
infusion
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Application number
CN201520439044.4U
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Chinese (zh)
Inventor
朱孙瑜
梅志华
宓志才
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SHANGHAI KANGGE MEDICAL APPLIANCE CO Ltd
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SHANGHAI KANGGE MEDICAL APPLIANCE CO Ltd
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Priority to CN201520439044.4U priority Critical patent/CN204766842U/en
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Abstract

The utility model provides a needleless infusion prevents that needle is kept somewhere to vein against current, includes the connecting seat, the connecting seat is the needleless infusion that one end and syringe or transfusion system be connected and connects, the connecting seat passes through connecting catheters and the three way connection one end of taking the vexed plug assembly of the wing is connected, the last flow stopping that installs of connecting catheters presss from both sides, take the vexed plug assembly of the wing to be connected with the pjncture needle through keeping somewhere the hose, the connecting catheters position of being connected with three way connection bonds in the intraductal chamber of PVC, PVC outside of tubes side is connected with two can make connecting catheters switch on or the confined flap valve, the flap valve is made by the silica gel material, be equipped with between two flap valves and make two flap valve pivoted axis, the axis is fixed in on the PVC pipe. The utility model discloses a needleless infusion connects makes the patient can not need acupuncture and repeatedly to infusion pipeline infusion medicine at the infusion in -process to can produce when the infusion finishes in the malleation prevents patient internal blood backflow to pjncture needle syringe needle or connecting catheters, avoid blockking up connecting catheters's risk, reduce and infect the probability.

Description

No-needle transfusion Anti-reflux venous indwelling needle
Technical field
This utility model relates to a kind of remaining needle, espespecially a kind of no-needle transfusion Anti-reflux venous indwelling needle.
Background technology
Centesis instrument conventional clinically at present has scalp draw point and venous detaining needle.Venous detaining needle is a kind of new Materials of Nursing Techniques developed rapidly in recent years, in China extensive use, but along with applying of remaining needle, some problems in using are outstanding day by day, though traditional remaining needle reduces vascular puncture number of times because having, alleviate patient suffering, easy to operate, be easy to fixing, effectively can meet the feature of the clinical rescue needs such as transfusion, blood transfusion, but its Chang Yin nurse can not, at once until change liquid in time, cause the blood vessel of patient infusion to reflux when patient infusion is over, cause that patient occurs in terror, anxiety phenomenon.Or because blood back appears in extension tube during patient activity, cause patient nervous, simultaneously also may because blood back causes the phenomenons such as plugging to occur.
Utility model content
The purpose of this utility model is to provide a kind of no-needle transfusion Anti-reflux venous indwelling needle, and it is carrying out when nook closing member is extracted in venipuncture or can prevent blood back flow from avoiding blood contamination in transfusion and retention process.
In order to realize such scheme, technical solution of the present utility model is: a kind of no-needle transfusion Anti-reflux venous indwelling needle, comprise Connection Block, described Connection Block is connected by connecting duct three way cock one end with the vexed plug assembly of the band wing, described connecting duct is provided with flow-stopping clip, the vexed plug assembly of the described band wing is connected with puncture needle by indwelling flexible pipe, the connecting duct position be wherein connected with described three way cock is bonded in the inner chamber of pvc pipe, the outboard end of described pvc pipe is connected with two can make connecting duct conducting or closed flap valve, described flap valve is made up of silica gel material, the axis that two flap valves can be made to rotate is provided with between two described flap valves, described axis is fixed on pvc pipe.
This utility model no-needle transfusion Anti-reflux venous indwelling needle, wherein two described flap valves are symmetrical arranged and semicircular in shape.
This utility model no-needle transfusion Anti-reflux venous indwelling needle, wherein said Connection Block is Y type tubes connection seat.
This utility model no-needle transfusion Anti-reflux venous indwelling needle, wherein said Connection Block adopts no-needle transfusion joint, described no-needle transfusion joint comprises the negative joint of one end for being connected with syringe or transfusion device, the other end of described negative joint and one end grafting of shell, the inner chamber of described shell is circumferentially provided with annular boss away from the position of negative joint, the inner chamber of described negative joint is plugged with elasticity blocking, the center of described elasticity blocking is provided with through hole, described one end of elasticity blocking and inner chamber one end compact siro spinning technology of negative joint, the other end of described elasticity blocking is through stretching into shell inner cavity after negative joint inner chamber and being against on annular boss, described through hole and shell inner cavity are isolated, the intracavity diameter of described shell is greater than the cross-sectional diameter of elasticity blocking, when elasticity blocking is pushed to after shell direction moves, described through hole communicates with shell inner cavity.
This utility model no-needle transfusion Anti-reflux venous indwelling needle, is wherein less than the cross-sectional diameter of its another part near the inner chamber part cross-sectional diameter of the described negative joint with syringe or transfusion device link.
This utility model no-needle transfusion Anti-reflux venous indwelling needle, wherein blocks one end away from the described elasticity of described shell and is provided with sealing-plug.
This utility model no-needle transfusion Anti-reflux venous indwelling needle, wherein said elasticity blocking is made up of PC or ABS or PP or medical grade silicon rubber.
This utility model no-needle transfusion Anti-reflux venous indwelling needle, the front end of wherein said indwelling flexible pipe is set to can conical pipe close-fitting with described puncture needle.
After adopting such scheme, this utility model no-needle transfusion Anti-reflux venous indwelling needle is by being bonded in pvc pipe inner chamber by the position be connected with the three way cock of the vexed plug assembly of the band wing, and the flap valve that two silica gel materials are made is set in pvc pipe one end, silica gel flap valve has the characteristic of moulding reply, two flap valves can be washed open because of pressure liquid stream is fashionable, two flap valves are fit together around central axis, make the complete conducting of connecting duct, and there is good resilience because of flap valve, after liquid injects, flap valve automatic rebounding makes connecting duct inner chamber close and can effectively prevent blood back flow situation.
Further beneficial effect of the present utility model is: by Connection Block being set to the no-needle transfusion joint connected to form by negative joint, shell and blocking, make patient can not need puncture needle acupuncture in infusion process and repeatedly to infusion pipeline infused drug, and can malleation be produced at the end of transfusion, blood backflow in prevention patient body is in puncture needle head or connecting duct, avoid the risk blocking connecting duct, reduce and infect probability.
Accompanying drawing explanation
Fig. 1 is embodiment one structural representation of this utility model no-needle transfusion Anti-reflux venous indwelling needle;
Fig. 2 is the flap valve closure state schematic diagram of pvc pipe end of the present utility model;
Fig. 3 is the flap valve open mode schematic diagram of pvc pipe end of the present utility model;
Fig. 4 is embodiment two structural representation of this utility model no-needle transfusion Anti-reflux venous indwelling needle;
Fig. 5 is the structural representation before the Connection Block of Fig. 4 uses;
Fig. 6 is the structural representation after the Connection Block of Fig. 4 uses.
Below in conjunction with accompanying drawing, this utility model specific embodiments is described further.
Detailed description of the invention
As shown in Figure 1, this utility model no-needle transfusion Anti-reflux venous indwelling needle, comprise Connection Block 1, Connection Block 1 adopts Y type tubes connection seat, Connection Block 1 is connected with the vexed plug assembly 3 of the band wing by connecting duct 2, the vexed plug assembly of the band wing 3 is made up of metal rivet 4, transparent three way cock 5 and anti-overflow plug 6, and one end of three way cock 5 is connected with connecting duct 2, connecting duct 2 is provided with flow-stopping clip 7.Second end of three way cock 5 is communicated with indwelling flexible pipe 8, metal rivet 4 is arranged at inner chamber one end of three way cock 5 and is connected with indwelling flexible pipe 8, anti-overflow plug 6 is arranged at the other end of three way cock 5 inner chamber, and be connected with indwelling flexible pipe 8, anti-overflow plug 6 adopts quality of rubber materials to make, the other end of indwelling flexible pipe 8 is connected with puncture needle 9, and anti-overflow plug 6 can play effective airtight effect when extracting puncture needle 9.The front end of indwelling flexible pipe 8 is set to can conical pipe close-fitting with puncture needle 9, can effectively play airtight effect equally.
Shown in composition graphs 2, connecting duct 2 position be connected with three way cock 5 is bonded in the inner chamber of pvc pipe 10, the outboard end of pvc pipe 10 is connected with two can make connecting duct 2 conducting or closed flap valve 11, two flap valves 11 are made up of silica gel material, the axis 18 that two flap valves 11 can be made to rotate is provided with between two flap valves 11, axis 18 is fixed on pvc pipe 10, and this embodiment pvc pipe 10, flap valve 11 and axis 18 integrated injection molding form.It is flap valve closure state schematic diagram in this figure.Be illustrated in figure 3 the flap valve open mode schematic diagram of pvc pipe end.
This utility model no-needle transfusion Anti-reflux venous indwelling needle is by being bonded in the inner chamber of pvc pipe 10 by the position be connected with the three way cock 5 of the vexed plug assembly 3 of the band wing, and the flap valve 11 that two silica gel materials are made is set in one end of pvc pipe 10, silica gel flap valve 11 has the characteristic of moulding reply, two flap valves 11 can be washed open because of pressure liquid stream is fashionable, two flap valves 11 are rotated around axis 18 fit together, make connecting duct 2 conducting completely, and there is good resilience because of flap valve 11, after liquid injects, flap valve 11 automatic rebounding makes connecting duct 2 inner chamber close and can effectively prevent blood back flow situation.
Embodiment two structural representation of this utility model no-needle transfusion Anti-reflux venous indwelling needle as shown in Figure 4, its most of structure is identical with the structure of embodiment described in Fig. 1, difference is: as shown in Figure 5 and Figure 6, Connection Block 1 ' is no-needle transfusion joint, it comprises the negative joint 12 of upper end for being connected with syringe or transfusion device, and the inner chamber top cross-sectional diameter of negative joint 12 is less than the cross-sectional diameter of its underpart.The upper end of the negative lower end of joint 12 and the shell 13 of hollow is plugged in together, and the lumenal cross-section diameter of shell 13 equals the inner chamber lower cross section diameter of negative joint 12.The inner chamber bottom of shell 13 is circumferentially provided with annular boss 14, and the inner chamber of negative joint 12 is plugged with elasticity blocking 15, and this elasticity blocking 15 is made up of PC or ABS or PP or medical grade silicon rubber.The center of elasticity blocking 15 is provided with through hole 16, upper end and the compact siro spinning technology concordant with the inner chamber upper end of negative joint 12 of elasticity blocking 15, and this end that elasticity blocks 15 is provided with sealing-plug 17.The lower end of elasticity blocking 15 is through stretching into the inner chamber of shell 13 after the inner chamber of negative joint 12 and being against on annular boss 14, through hole 16 is isolated with the inner chamber of shell 13, the intracavity diameter of shell 13 is greater than the cross-sectional diameter of elasticity blocking 15, when elasticity blocks 15 in the process of lower pressing after being opened by sealing-plug 17, after it enters the inner chamber of shell 13 completely, through hole 16 communicates with the inner chamber of shell 13.
When needs are infused, syringe or transfusion device are inserted the inner chamber upper end of negative joint 12, now elasticity blocking 15 is promoted by lower end, sealing-plug 17 in elasticity blocking 15 is opened, and when elasticity blocking 15 is fully advanced the inner chamber of shell 13, the through hole 16 of elasticity blocking 15 and the intracavity inter-connection of shell 13, make the inner space of liquid in syringe or transfusion device and shell 13, when transfusion completes and pulls out syringe or transfusion device, elasticity blocking 15 recovers distortion, again airtight between elasticity blocking 15 and shell 13, the needleless so just achieving the safety that can repeatedly plug connects, while pulling out syringe or transfusion device after a procedure simultaneously, a malleation is produced in negative joint 12, force liquid to be rapidly to intravenous to rinse, venous blood is made to leave puncture needle 9, thus avoid blood to solidify in needle tubing, blood backflow in prevention patient body is in puncture needle 9 syringe needle or connecting duct 2, avoid the risk blocking connecting duct 2, reduce and infect probability, keep the unimpeded of remaining needle, and this positive valve adopts airtight path to infuse, fluid passage is closed completely by elasticity blocking 15 and is hidden, which ensure that the airtight and aseptic condition of negative joint 12 inner chamber fluid passage, reduce the potential danger of microorganism intrusion and air intake.
The above embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from this utility model design spirit; the various distortion that the common engineers and technicians in this area make the technical solution of the utility model and improvement, all should fall in protection domain that claims of the present utility model determine.

Claims (8)

1. a no-needle transfusion Anti-reflux venous indwelling needle, comprise Connection Block, described Connection Block is connected by connecting duct three way cock one end with the vexed plug assembly of the band wing, described connecting duct is provided with flow-stopping clip, the vexed plug assembly of the described band wing is connected with puncture needle by indwelling flexible pipe, it is characterized in that: the connecting duct position be connected with described three way cock is bonded in the inner chamber of pvc pipe, the outboard end of described pvc pipe is connected with two can make connecting duct conducting or closed flap valve, described flap valve is made up of silica gel material, the axis that two flap valves can be made to rotate is provided with between two described flap valves, described axis is fixed on pvc pipe.
2. no-needle transfusion Anti-reflux venous indwelling needle according to claim 1, is characterized in that: two described flap valves are symmetrical arranged and semicircular in shape.
3. no-needle transfusion Anti-reflux venous indwelling needle according to claim 2, is characterized in that: described Connection Block is Y type tubes connection seat.
4. no-needle transfusion Anti-reflux venous indwelling needle according to claim 1, it is characterized in that: described Connection Block adopts no-needle transfusion joint, described no-needle transfusion joint comprises the negative joint of one end for being connected with syringe or transfusion device, the other end of described negative joint and one end grafting of shell, the inner chamber of described shell is circumferentially provided with annular boss away from the position of negative joint, the inner chamber of described negative joint is plugged with elasticity blocking, the center of described elasticity blocking is provided with through hole, described one end of elasticity blocking and inner chamber one end compact siro spinning technology of negative joint, the other end of described elasticity blocking is through stretching into shell inner cavity after negative joint inner chamber and being against on annular boss, described through hole and shell inner cavity are isolated, the intracavity diameter of described shell is greater than the cross-sectional diameter of elasticity blocking, when elasticity blocking is pushed to after shell direction moves, described through hole communicates with shell inner cavity.
5. no-needle transfusion Anti-reflux venous indwelling needle according to claim 4, is characterized in that: the inner chamber part cross-sectional diameter near the described negative joint with syringe or transfusion device link is less than the cross-sectional diameter of its another part.
6. the no-needle transfusion Anti-reflux venous indwelling needle according to claim 4 or 5, is characterized in that: the described elasticity away from described shell blocks one end and is provided with sealing-plug.
7. no-needle transfusion Anti-reflux venous indwelling needle according to claim 6, is characterized in that: described elasticity blocking is made up of PC or ABS or PP or medical grade silicon rubber.
8. no-needle transfusion Anti-reflux venous indwelling needle according to claim 1, is characterized in that: the front end of described indwelling flexible pipe is set to can conical pipe close-fitting with described puncture needle.
CN201520439044.4U 2015-06-25 2015-06-25 Needleless infusion prevents that needle is kept somewhere to vein against current Active CN204766842U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107335106A (en) * 2017-08-15 2017-11-10 苏州创扬医药科技股份有限公司 A kind of infusion connector
CN108159559A (en) * 2018-01-15 2018-06-15 上海柯安憬国际贸易有限公司 Anti-reflux infusion dosing three-way device
CN111643773A (en) * 2020-06-15 2020-09-11 苏州科技城医院 Pulse head for punching pipe and its using method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107335106A (en) * 2017-08-15 2017-11-10 苏州创扬医药科技股份有限公司 A kind of infusion connector
CN108159559A (en) * 2018-01-15 2018-06-15 上海柯安憬国际贸易有限公司 Anti-reflux infusion dosing three-way device
CN111643773A (en) * 2020-06-15 2020-09-11 苏州科技城医院 Pulse head for punching pipe and its using method
CN111643773B (en) * 2020-06-15 2022-02-11 苏州科技城医院 Pulse head for punching pipe and its using method

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