CN109010990A - A kind of novel infusion needleless joint - Google Patents
A kind of novel infusion needleless joint Download PDFInfo
- Publication number
- CN109010990A CN109010990A CN201810990483.2A CN201810990483A CN109010990A CN 109010990 A CN109010990 A CN 109010990A CN 201810990483 A CN201810990483 A CN 201810990483A CN 109010990 A CN109010990 A CN 109010990A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- pedestal
- groove
- shell
- novel infusion
- 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.)
- Pending
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 32
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 43
- 230000006835 compression Effects 0.000 claims abstract description 26
- 238000007906 compression Methods 0.000 claims abstract description 26
- 239000007799 cork Substances 0.000 claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000741 silica gel Substances 0.000 claims abstract description 9
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 9
- 239000008280 blood Substances 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M2005/1401—Functional features
Abstract
A kind of novel infusion needleless joint, including pedestal, pedestal includes hollow sleeve I, and shell is arranged with outside pedestal, and the top of shell is equipped with connector, pedestal and shell form cavity after being nested together, it is equipped with elastic cork in cavity, female Luer is equipped with below sleeve I, is equipped with central passage at female Luer center, I outer wall of sleeve of pedestal is equipped with groove, and groove is connected to central passage.Pneumatically of the present invention, generate elastic force, the round hollow thin slice of compression end is flexible simultaneously generates elastic force, and the pop-up of aux. pressure end, pressure end easily pops up after removing pressure, it will not rest in shell and pedestal, the seal head of elastic cork and the sleeve of pedestal are interference fitted, and silica gel compressive deformation, seal head contacts closing with base inner wall, it is not easy to leak, achievees the effect that sealing.
Description
Technical field
The invention belongs to the field of medical instrument technology, and in particular to a kind of novel infusion needleless joint.
Background technique
In clinical treatment, when patient needs repeatedly infusion, it will usually use non small cellCatheter, the outer indwelling of human body is led
The docking mode of pipe and infusion apparatus, which is divided into, needle and needleless docking.One kind in the prior art has needle docking mode, medical infusion
The connector fitting body affixed by attachment base and with it forms, and this fitting body is also commonly known as calparine cap.Infusion apparatus needle tubing from
Seal rubber plug insertion at the top of fitting body.While infusion apparatus needle tubing is extracted in infusion end of a period, the space that needle tubing original occupies is close to very
Empty to generate negative pressure in inlying catheter, blood can be flow backwards from blood vessel into inlying catheter, flow backwards blood and caused blood clotting
Inlying catheter is blocked, can not be infused again, serious there may be thrombus, damage to sufferer.
Therefore, medical worker usually requires to take one to be rinsed inlying catheter with the tube sealing syringe for puncturing needle tubing
Tube sealing, syringe needle tube is penetrated from calparine cap rubber plug when tube sealing operates, and into calparine cap inner cavity, necessarily occupies cavity space in calparine cap
Between, and at the end of tube sealing, medical worker needs side to withdraw from syringe needle tube edge to inject tube-sealing solution, replenish the space that needle tubing occupies,
In order to avoid forming negative pressure in inlying catheter.It is this cumbersome and still can remain the space that tube-sealing solution can not finally be filled up, it bears
Pressure can still generate, and for remedy such and insufficient, traditionally after not upper flow-stopping clip clamping extension tube, need flow-stopping clip toward conduit
The sliding of component direction, enables extension tube gradually be extruded, and will extend liquid in pipe and squeezes into inlying catheter inner cavity, drives refluence blood out of,
But resistance to sliding is big when flow-stopping clip is clamped with extension tube, drawing extension tube, easily extension tube elongation attenuates, conduit tube component is in indwelling
It is period, serious to break extension tube and cause hemorrhage through multiple drawing, in addition conduit tube component indwelling is pasted onto sufferer body
On, conduit tube component can be pulled out sufferer body if drawing is careless by extension tube limited length, in order to avoid above-mentioned accident hair
Raw, medical worker is overcautious when operating, and the length of flow-stopping clip drawing sometimes is inadequate, still cannot be completely secured blood inside catheters
Drive clean, therefore this mode of operation is invisible increases medical staff's workload and psychological burden.
Summary of the invention
In view of the above technical problems, the object of the present invention is to provide a kind of novel infusion needleless joints.
Technical solution of the present invention specifically:
A kind of novel infusion needleless joint, including pedestal, pedestal include hollow sleeve I, are arranged with shell outside pedestal, shell
Top is equipped with connector, and pedestal and shell form cavity after being nested together, and elastic cork is equipped in cavity, is equipped with below sleeve I
Female Luer, central passage is equipped at female Luer center, and I outer wall of sleeve of pedestal is equipped with groove, groove and central passage
Connection.
The elasticity cork includes compression end and pressure end, and compression end is connected with pressure end by seal head, seal head
Outer diameter is greater than the outer diameter of compression end and pressure end, and compression end protrudes into the sleeve I of pedestal, and seal head is interference fitted in sleeve I
Tube port position, pressure end protrude into the connector of shell, and the top of pressure end is equipped with cross recess.
The elasticity cork is silica gel cork, and compression end is round hollow elastic sheet, after compression the outer diameter of compression end with
The outer diameter of seal head is consistent.
The pedestal is equipped with flange, is hollow sleeve I above flange, is female Luer, female Luer below flange
Inner wall be equipped with internal screw thread, through-hole is equipped between flange and sleeve I, central passage is connected to through-hole, the both ends of through-hole with
Groove connection.
I top of sleeve is provided with gap, and gap is located at the top of groove.
The through-hole is located at the diameter of sleeve I, and through-hole is equipped at least one, and two ports of through-hole are respectively positioned on groove
In, I outer wall of sleeve is equipped at least two grooves.
The shell includes sleeve II and connector, and connector outer wall is equipped with external screw thread, and II set of sleeve in pedestal sleeve I
Outside.
II interior bottom portion of sleeve is equipped with annular groove, and annular groove is matched with flange, and flange is equipped at least one
A guide pad, annular groove are equipped with guide groove, and guide pad cooperates in guide groove, on the circumferencial direction of II outer wall of sleeve uniformly
Equipped with convex ribs.
Circle distribution has square groove on the connector inner wall.
Compared with the existing technology, technical effect of the invention is,
1, pneumatically of the present invention generates elastic force, while the flexible generation elastic force of round hollow thin slice of compression end, aux. pressure
End pop-up, pressure end easily pops up after removing pressure, will not rest in shell and pedestal.
2, the seal head of elastic cork and the sleeve of pedestal are interference fitted, silica gel compressive deformation, seal head and base inner wall
Contact closing, is not easy to leak, achievees the effect that sealing.
3, the present invention has spiral female Luer, is connected firmly, not easily to fall off.
4, the flowing being infused in the present invention is that the side groove of pedestal is leaned on to be formed, and infusion part is flowed into from through-hole.Groove
Advantage is unblocked power when liquid flowing, and repeatedly infusion is generated without steam bubble, and pollution-free.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the schematic diagram of the section structure of Fig. 1.
Fig. 3 is the structural schematic diagram of pedestal of the present invention.
Fig. 4 is the schematic diagram of the section structure of shell of the present invention.
Fig. 5 is the structural schematic diagram of the elastic cork of the present invention.
Specific embodiment
A kind of novel infusion needleless joint, including pedestal 1, are arranged with shell 2 outside pedestal 1, and pedestal 1 and 2 sets of shell are one
Cavity is formed after rising, and elastic cork 3 is equipped in cavity.
Pedestal 1 is equipped with flange 14, is hollow sleeve I 10 above flange 14, and I 10 outer wall of sleeve is equipped with groove 12,
It is female Luer 11 below flange 14, pedestal 1 is linked together by female Luer 11 with remaining needle, the inner wall of female Luer 11
It is equipped with internal screw thread, central passage 13 is equipped at 11 center of female Luer, through-hole 15 is equipped between flange 14 and sleeve I 10, in
Heart channel 13 is connected to through-hole 15, and through-hole 15 is located at the diameter of sleeve I 10, and through-hole 15 and the axis of sleeve I 10 intersect vertically,
Through-hole 15 is equipped at least one, and the both ends of through-hole 15 are connected to groove 12, and two ports of through-hole 15 are respectively positioned in groove 12,
I 10 outer wall of sleeve is equipped at least two grooves 12, and I 10 top of sleeve is provided with gap 16, and gap 16 is located at the top of groove 12,
Unblocked power when liquid flows in groove, bubble-free of being repeatedly infused generate, and pollution-free.
Shell 2 includes sleeve II 21 and connector 20, and 20 outer wall of connector is equipped with external screw thread, and shell 2 passes through connector
20 connect with infusion device or blood-taking device, and circle distribution has square groove 25 on 20 inner wall of connector, and square groove 25 facilitates medical fluid
Inflow, II 21 sets of the sleeve outsides in pedestal sleeve I 10, II 21 interior bottom portion of sleeve be equipped with annular groove 22, annular groove
22 match with the flange 14 on pedestal 1, after annular groove 22 is combined together with flange 14, the top of sleeve I 10 and sleeve
II 21 top contact, pedestal 1 and shell 2 cooperate in place, and flange 14 is equipped at least one guide pad 17, on annular groove 22
Equipped with guide groove 23, guide pad 17 cooperates in guide groove 23, is uniformly provided with convex ribs 24 on the circumferencial direction of II 21 outer wall of sleeve,
Convenient for rotation operation while anti-skidding.
Elastic cork 3 is silica gel cork, and elastic cork 3 includes compression end 31 and pressure end 32, compression end 31 and pressure end
32 are connected by seal head 33, and the outer diameter of seal head 33 is greater than the outer diameter of compression end 31 and pressure end 32, and compression end 31 protrudes into bottom
In the sleeve I 10 of seat 1, seal head 33 is interference fitted in the tube port position of sleeve I 10, and the compression end 31 of elastic cork 3 protrudes into sleeve I
After in 10, seal head 33 is located at the tube port position of sleeve I 10, and elasticity of compression cork 3 submerges seal head 33 all in sleeve I 10,
Play the role of sealing to sleeve I 10, compression end 31 is round hollow elastic sheet, the outer diameter of compression end 31 and sealing after compression
First 33 outer diameter is consistent, and silica gel will be contacted with the inner wall of sleeve I 10, thus to I 10 compressed air sealing of sleeve.Pressure end 32
It protrudes into the connector 20 of shell 2, the top of pressure end 32 is equipped with cross recess 34.
The working principle of the invention is:
Pedestal 1, shell 2 and elastic cork 3 are combined, the cooperation of silica gel and pedestal, matching part utilizes silica gel and bottom
The interference fit of seat, silica gel compressive deformation achieve the effect that sealing, and the female Luer 11 of pedestal 1 is replaced the liver on remaining needle
It is connected on remaining needle after plain cap, connector 20 and the female Luer on infusion device of shell 2 are threaded togather, connection
In the process, the female Luer on infusion device can squeeze the pressure end 32 protruded into connector 20, so that at compression end 31
In compressive state, in this case, seal head 33 is pushed into sleeve I 10, is occurred between I 10 nozzle of seal head 33 and sleeve empty
Gap, when infusion, after flowing out in infusion device, medical fluid can flow medical fluid along the cross recess 34 and square groove 25 at 32 top of pressure end
Enter in gap, after medical fluid fills up gap, medical fluid is flowed into groove 12 by the gap 16 on sleeve I 1, flows to the bottom of groove 12
Afterwards, medical fluid is flowed into central passage 13 by the through-hole 15 through two grooves 12, and after the outflow of central passage 13, medical fluid is logical
Remaining needle is crossed to enter into the human body.
After the completion of infusion, after infusion device removal, elastic cork 3 automatically restores to original state, will not rest on shell
In pedestal, elastic cork 3 gradually squeezes out the medical fluid in gap during restoring, and medical fluid is gradually pressed into indwelling
Needle front end, stop infusion after can anti-return blood, prevent the solidification of remaining needle front end blood.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without depart from that overall concept of the invention, several changes and improvements can also be made, these also should be considered as of the invention
Protection scope.
Claims (9)
1. a kind of novel infusion needleless joint, it is characterised in that: including pedestal (1), pedestal (1) includes hollow sleeve I
(10), it is arranged with shell (2) outside pedestal (1), the top of shell (2) is equipped with connector (20), and pedestal (1) and shell (2) cover
It forms cavity afterwards together, elastic cork (3) is equipped in cavity, is equipped with female Luer (11) below sleeve I (10), female Luer
(11) central passage (13) are equipped at center, sleeve I (10) outer wall of pedestal (1) is equipped with groove (12), and groove (12) is in
Heart channel (13) connection.
2. novel infusion needleless joint as described in claim 1, it is characterised in that: the elasticity cork (3) includes compression end
(31) it is connected with pressure end (32), compression end (31) and pressure end (32) by seal head (33), the outer diameter of seal head (33) is big
In the outer diameter of compression end (31) and pressure end (32), compression end (31) is protruded into the sleeve I (10) of pedestal (1), seal head (33)
It is interference fitted in the tube port position of sleeve I (10), pressure end (32) protrudes into the connector (20) of shell (2), pressure end (32)
Top is equipped with cross recess (34).
3. novel infusion needleless joint as claimed in claim 2, it is characterised in that: the elasticity cork (3) is silica gel cork,
Compression end (31) is round hollow elastic sheet, and the outer diameter of compression end (31) is consistent with the outer diameter of seal head (33) after compression.
4. novel infusion needleless joint as described in claim 1, it is characterised in that: the pedestal (1) is equipped with flange (14),
It is hollow sleeve I (10) above flange (14), is below flange (14) female Luer (11), on the inner wall of female Luer (11)
Equipped with internal screw thread, through-hole (15) are equipped between flange (14) and sleeve I (10), central passage (13) is connected to through-hole (15), is led to
The both ends in hole (15) are connected to groove (12).
5. novel infusion needleless joint as claimed in claim 4, it is characterised in that: sleeve I (10) top is provided with gap
(16), gap (16) is located at the top of groove (12).
6. novel infusion needleless joint as claimed in claim 4, it is characterised in that: the through-hole (15) is located at sleeve I (10)
Diameter at, through-hole (15) be equipped at least one, two ports of through-hole (15) are respectively positioned in groove (12), and sleeve I (10) is outside
Wall is equipped at least two grooves (12).
7. novel infusion needleless joint as claimed in claim 4, it is characterised in that: the shell (2) includes sleeve II (21)
With connector (20), connector (20) outer wall is equipped with external screw thread, and sleeve II (21) covers in the outside of pedestal sleeve I (10).
8. novel infusion needleless joint as claimed in claim 7, it is characterised in that: sleeve II (21) interior bottom portion is equipped with
Annular groove (22), annular groove (22) are matched with flange (14), and flange (14) is equipped at least one guide pad (17), ring
Connected in star (22) is equipped with guide groove (23), and guide pad (17) cooperates the circumference of sleeve II (21) outer wall in guide groove (23)
Convex ribs (24) are uniformly provided on direction.
9. the novel infusion needleless joint as described in claim 2 or 7, it is characterised in that: circle on connector (20) inner wall
Square groove (25) are distributed with week.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810990483.2A CN109010990A (en) | 2018-08-28 | 2018-08-28 | A kind of novel infusion needleless joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810990483.2A CN109010990A (en) | 2018-08-28 | 2018-08-28 | A kind of novel infusion needleless joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109010990A true CN109010990A (en) | 2018-12-18 |
Family
ID=64624884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810990483.2A Pending CN109010990A (en) | 2018-08-28 | 2018-08-28 | A kind of novel infusion needleless joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109010990A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110694137A (en) * | 2019-11-04 | 2020-01-17 | 上海康德莱企业发展集团股份有限公司 | Seamless filling needle-free dosing connector |
| CN112245706A (en) * | 2020-11-05 | 2021-01-22 | 陕西智宇寰宸医疗器械有限公司 | Infusion joint |
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| US20140316350A1 (en) * | 2011-12-27 | 2014-10-23 | Nipro Corporation | Needleless connector |
| CN204307139U (en) * | 2014-11-18 | 2015-05-06 | 深圳市安特高科实业有限公司 | Closed positive pressure connector |
| CN205041878U (en) * | 2015-08-28 | 2016-02-24 | 北京天地和协科技有限公司 | Infusion of needleless malleation connects |
| CN107837459A (en) * | 2017-12-11 | 2018-03-27 | 江苏苏云医疗器材有限公司 | Autobarotropy formula band gas discharge connector |
| CN108030976A (en) * | 2018-01-17 | 2018-05-15 | 威海洁瑞医用制品有限公司 | Positive pressure threeway is transfused attachment device |
| CN209137582U (en) * | 2018-08-28 | 2019-07-23 | 河南曙光汇知康生物科技股份有限公司 | A kind of novel infusion needleless joint |
-
2018
- 2018-08-28 CN CN201810990483.2A patent/CN109010990A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648049A (en) * | 2009-09-10 | 2010-02-17 | 威海洁瑞医用制品有限公司 | Medical forward flow connection device |
| CN101879339A (en) * | 2010-07-12 | 2010-11-10 | 上海康德莱企业发展集团医疗器械有限公司 | Needleless dosing positive pressure connector |
| CN201840715U (en) * | 2010-07-12 | 2011-05-25 | 上海康德莱企业发展集团医疗器械有限公司 | Needle-free medicine adding positive pressure connector |
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| CN202751639U (en) * | 2012-06-08 | 2013-02-27 | 苏州林华医疗器械有限公司 | Positive-pressure and pin-free connection piece |
| CN204307139U (en) * | 2014-11-18 | 2015-05-06 | 深圳市安特高科实业有限公司 | Closed positive pressure connector |
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| CN107837459A (en) * | 2017-12-11 | 2018-03-27 | 江苏苏云医疗器材有限公司 | Autobarotropy formula band gas discharge connector |
| CN108030976A (en) * | 2018-01-17 | 2018-05-15 | 威海洁瑞医用制品有限公司 | Positive pressure threeway is transfused attachment device |
| CN209137582U (en) * | 2018-08-28 | 2019-07-23 | 河南曙光汇知康生物科技股份有限公司 | A kind of novel infusion needleless joint |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110694137A (en) * | 2019-11-04 | 2020-01-17 | 上海康德莱企业发展集团股份有限公司 | Seamless filling needle-free dosing connector |
| CN110694137B (en) * | 2019-11-04 | 2021-10-01 | 上海康德莱企业发展集团股份有限公司 | Seamless filling needle-free dosing connector |
| CN112245706A (en) * | 2020-11-05 | 2021-01-22 | 陕西智宇寰宸医疗器械有限公司 | Infusion joint |
| CN112245706B (en) * | 2020-11-05 | 2021-06-25 | 陕西智宇寰宸医疗器械有限公司 | Infusion joint |
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